Valve drive

FIELD: machine building.

SUBSTANCE: invention refers to the valve drive. The valve drive contains body, motor connected with primary power source and with valve, with possibility to change the valve position from first position, when fluid can flow, at least, along one path to the second position, when the fluid flow either is locked or can flow, at least, along the second path. At least one sensor is made with the possibility to determine either valve position or valve speed. A switch controls the power supply to the motor. The power supply circuit is connected with the switch and includes a controller connected with at least one sensor and power supply circuit. The controller is intended for data acquisition in real time, such data relates to the valve position or speed, as well as for acquisition of data relating the power supply mode, to calculate updating of the position or speed in proportion to difference between the obtained data relating to the valve position or speed, respectively, and obtained data relating the power supply mode. Also the controller is intended to transmit new settings of the power supply to the power supply circuit that amplifies the controller signal.

EFFECT: invention eliminates the water hammer.

18 cl, 9 dwg

 

The technical field to which the invention relates.

The present invention mainly relates to the valve actuator. More specifically, it relates to an actuator used to actuate the valve, such as, for example, fuel valve, in particular, which is connected with the electronic control unit and/or other valve actuator.

The level of technology

Valve actuators are widely used and most are used in conventional systems refueling located on Board aircraft.

Basically, all valve actuators have CPU configuration management, monitoring and control of the valve. Key management factors include the position of the actuator, i.e., valve position, and the torque of the drive (especially for rotary output drives) and axial thrust force (primarily for linear output drives). In rotary output actuator, for example, the valve position is usually determined by counting the revolutions or part of the turnover of the rotary output shaft via the angular encoder. In such a drive load on the output shaft of the actuator is typically determined using mechanical means, such as a strain gauge or pressure sensor. The load can also be determined by the torque associated with the current engine.

Valve actuators generally have the opportunity of uninterrupted work, if, for example, a fault has occurred in the power supply. To this end, the most drives also include the return mechanism is a pressure spring to move the actuator to position the smooth operation.

However, this type of valve actuators has the disadvantage that in case of excess pressure possible hydraulic shock.

Moreover, in systems refueling aircraft these valve actuators allow only General regulation, as described in document US 2008/0173762. This document describes a system for refueling aircraft, allowing to increase the speed of refueling, in which the pipeline refueling aircraft set stops fuel flow, limiting the rate of fuel flow from the pipeline refueling to the fuel tanks. Also known fuel valve that allows you to disconnect each fuel tank from the pipeline refueling.

Common regulation is realized by means of the fuel pressure regulator on Board the aircraft, to determine the maximum pressure in the pipeline refueling. This type of General regulation is not suitable when there is a need to refuel a separate fuel tank. On-Board fuel circuit of the aircraft, thus, may not always be optimized in accordance with any specific the mi needs.

Therefore, there is a need in the actuator valve to prevent hydraulic shock in the event excessive pressure and, in particular, allowing a new way of refueling the respective fuel tanks of the aircraft.

The invention

In embodiments implementing the present invention proposed a valve actuator, including:

body

the engine is attached to the valve, and the rotation of the motor changes the position of the valve from the first position in which fluid flow may occur, at least along one path, and a second position in which fluid flow is either blocked or the flow may occur, at least along a second path, the said motor is usually powered by electricity from the main power source

at least one sensor for determining the position and/or speed valve

the switch that controls the delivery of power to the engine,

a power supply circuit connected to the switch; and characterized in that it further includes a controller connected at least to one sensor and the power supply circuit, the said controller in real time collects data relating to the position and/or speed of the valve, and the data, therefore, is by mode of supply, computes the correction of the position and/or velocity is proportional to the misalignment between the collected data relating to the position and/or speed of the valve, and collected data related to the mode of supply, and sends the new configuration of power supply in the power supply circuit and power supply circuit amplifies the signal of the controller.

The valve is a ball valve containing the gear unit connecting the engine with the valve. The said motor is a brushless motor.

Accordingly, the configuration of the power transmitted by the controller to the power supply circuit is a function of at least one parameter.

In accordance with a separate option settings of the power transmitted by the controller to the power supply circuit is a function of time.

Moreover, the configuration of the power transmitted by the controller to the power supply circuit, preferably retain in non-volatile memory.

Accordingly, the configuration of the power supply are a function of time according to the following equation:

configuration of power supply = at3-bt2+ct

where a, b and C are constants, a t the time, expressed in seconds.

Moreover, the valve actuator further comprises means for estimating engine failure.

In choosing the accordance with a separate option controller further comprises means, intended for connection of the above-mentioned controller with an electronic control unit (ECU) adapted for connection to a variety of valve actuators.

In accordance with another variant, the controller further comprises a means intended for connection of the above-mentioned controller, at least one other actuator.

Moreover, the engine contains a Hall sensor for determining the position and/or rotation of the above-mentioned engine.

Mentioned the gear unit connecting the engine with the valve includes a worm gear.

Alternatively, the gear unit additionally includes a handle, which is attached to this form, so that it can be rotated manually or by capture, or using the tool, and the gear unit additionally includes a coupling Assembly connecting the handle to the valve stem and gear.

In accordance with another variant, the controller includes means for calculating the adjustment position and/or velocity is proportional to the misalignment between the collected data relating to the position and/or speed of the valve, and collected data related to the mode of supply.

Preferably, the valve actuator is additionally included means adapted to detect failures in the valve actuator, such is AK the failure of the controller, erroneous valve position or, for example, the current overload.

Moreover, when a failure is detected in the drive valve opening and/or closing of the valve is performed with a constant velocity.

Other characteristics and advantages of the invention will become apparent to experts in the field of technology from the following description given as a non-limiting example with reference to the accompanying drawings.

Brief description of drawings

In Fig.1 shows a perspective view of the valve actuator in accordance with the present invention.

In Fig.2 shows a perspective view from the inside of the valve actuator in accordance with the invention.

In Fig.3 shows the different parts schema valve actuator in accordance with the invention.

In Fig.4A and 4B shows the corresponding schematic views of a ball valve controlled by a valve actuator in accordance with the invention, in closed and open position, respectively.

In Fig.5 shows a flowchart of a process performed by a valve actuator in accordance with the invention.

In Fig.6 shows a diagram of the electronics of the valve actuator.

In Fig.7 shows a graph of the settings of the power transmitted by the controller to the power supply circuit as a function of time.

In Fig.8 schematically shows the equipment refueling aircraft, including valve actuators with the availa able scientific C with the invention.

Detailed description of option exercise

In the various drawings, the same reference position is used to denote the same elements.

In Fig.1 shows a perspective view of the valve actuator 1 in accordance with the present invention. As shown in Fig.1, the actuator 1, the valve includes a cylindrical housing 2, closed the lid 3, and containing an electric motor 4, such as a brushless motor, and the cover 5. The motor 4 is attached to the valve (not shown) so that rotation of the motor changes the position of the valve from the first position in which fluid flow may occur, at least along one path, and a second position in which fluid flow is either blocked, or it can flow at least along a second path, the said motor is usually powered by electricity from the main power source (not shown).

The valve is preferably a ball valve. Mentioned ball valve is a valve with a spherical disc, the part of the valve that controls the pass-through stream. In the sphere has a hole, or channel, through the middle so that when the channel is in line with both ends of the valve, the flow can proceed. When the valve is closed, the hole is perpendicular to ncam valve, and the thread locked. The valve may be a valve with a full channel, better known full bore ball valve, with increased size of the ball so that the hole in the ball is the same size as the pipeline resulting in less friction loss compared to the valve with a reduced channel, better known as reduced spherical valve in which the flow through the valve in one nominal diameter less than the nominal diameter of the valve that leads to the fact that the cross-section of flow is less than the section of the pipe, V-type ball valve, having a v-shaped ball or v-shaped saddle, or zappoly ball valve, which has a mechanical means of securing the ball at the top and bottom. Moreover, it can be multi-channel ball valve, such as three-way ball valves with L - or T-shaped hole through the middle, four way ball valves, etc.

Despite the fact that the ball valves are widely known for their durability, it should be noted that the ball valve can be replaced by a valve of any known type, such as gate valve, ball valve, gate valve, needle valve, piston valve, pinch valve, plug valve, spool valve, etc. without leaving the volume of the invention.

In Fig.2 shows the housing 2 with the chamber 6 and the edge 7, which is based on the cover 3. The gear 8 is located in the chamber 6 and includes a worm wheel 9, which is connected with the shaft 10 to bring the valve into effect. The gear 8 includes a worm 11 connected to the engine 4 and the ring gear 12 of the worm wheel 9.

Alternatively, it is additionally includes the gear unit connecting the motor with the worm, the handle, which is attached to this form, so that it can be rotated manually or by capture or by using a tool, and a coupling Assembly connecting the handle to the valve stem and with a gearbox (not shown).

When the screw 11 is turned by the motor 4 in the direction of arrow "a" in Fig.2, around the longitudinal axis of the worm 11, rotates the worm wheel 9 around the axis 13 of rotation of the arrow "b". Additional axis 13 of rotation is perpendicular to the axis of the worm 9 and coincides with the longitudinal axis of the shaft 10, to operate the valve.

As shown in Fig.2 and 3, the actuator 1, the valve includes at least one sensor for determining the position and/or speed valve (not shown), the switch that controls power supply to the motor, controller and power supply circuit connected to the switch. The mentioned sensor may be any known work, Islam in the field of sensor technology, such as an optical sensor, magnetic sensor, Hall sensor, and so on, the Switch that controls the delivery of electric power to the motor, controller and power supply circuit are located on the three disc-shaped boards 14a, 14b, 14 C, connected with each other, all disc-shaped boards have Central openings 15A, 15b, 15C, forming a channel for the shaft 10, and is installed in the chamber 6.

As shown in Fig.4A and 4B, the housing of the valve may be a ball, the rotatable positioning device (not shown) driven by the engine 4 or the servo motor 131 or equivalent servomechanism. The sensor 132 position outputs a signal indicating the position of the body In the valve. If you use the servo motor 131 of the rotary type, the sensor 132 may determine the angular position of the housing In the valve or other element attached to the housing In the valve. The valve opening can be set at a desired open position between a fully open position as shown in Fig.4A, and a closed position, as shown in Fig.4 Century Drive allows real-time to set the opening of the corresponding valve. The angular position of the rotary mechanism D specifies the ratio of opening the housing In the valve.

As shown in Fig.5, which schematically shows the process, carried the text of the valve actuator in accordance with the invention, a controller connected at least one sensor and to the power supply circuit, in real time collects data relating to the position and/or speed of the valve, and data related to the mode of supply, calculates the adjustment position and/or velocity is proportional to the misalignment between the collected data relating to the position and/or speed of the valve, and collected data related to the mode of supply, and sends the new configuration of power supply in the power supply circuit and power supply circuit amplifies the signal of the controller.

As shown in Fig.6, an electronic circuit includes a switch 16 that controls the delivery of electric power to the motor 17, the resolver 18, designed to determine the valve position and/or speed of the valve, figure 19 power supply connected to the switch 16, and a controller 20 connected to the resolver 18 and figure 19 power supply, the controller 20 in real time collects data relating to the position and/or speed of the valve, and data related to the mode of supply, calculates the adjustment position and/or velocity is proportional to the misalignment between the collected data relating to the position and/or speed of the valve, and collected data related to the mode of supply, and to send the ing new configuration of power supply in the power supply circuit, the scheme 19 power amplifies the signal of the controller.

It should be noted that the resolver 18 may be replaced by any sensor known to experts in the field of technology type, to determine the valve position and/or speed of the valve, without straying from the scope of the invention.

In the embodiment shown in Fig.6, the circuit additionally includes a decoder 21, which is connected on one side with a circular sensor 18 of the regulations and on the other hand with the device 22 of the control decoder. The above-mentioned control device decoder connected to the controller 20 and the processor 23 of errors.

Alternatively, the engine 17 includes a sensor 24 Hall for determining the position and/or rotation of the above-mentioned engine.

The mentioned sensor 24 Hall is connected to the block 25 power control and autopilot switch 16.

Moreover, the controller 20 includes a device 26 control condition attached to the device 27 management modes, which are attached to the unit 28 of the control. Unit 28 of the control is connected to the block 25 power control and autopilot switch 16. The circuit includes a nonvolatile memory 29 ROM, connected to the device 27 of the control modes, the first analog-to-digital Converter 30, referred to as ADC 30 connected to the first device 31 controls the ADC, which is dinino device 27 of the control mode of the controller 20, the second analog-to-digital Converter (ADC) 32, which is connected with the second device 33 controls the ADC, which is connected to the device 22 of the control decoder resolver 18. Each of the analog-to-digital converters 30 and 32 includes at least one filter.

Scheme 19 power supply includes a filter 34 that protects the circuit from overload, lightning and electromagnetic interference (EMI), the first block 35 with a reduction, control and filtering functions and the second block 36 with a reduction and management functions.

The circuit includes an input/output stage 37, containing a multiplicity of logic gates and output logic gates.

The device 27 control modes includes at least three modes, the first mode, called mode "damage", in which the valve is to operate with a constant high speed, regardless of the failure in the sensor position, the second mode, called "off", in which the engine, operate the valve operates with a constant speed equal to approximately one-quarter of the full speed, and in which the switch 38 is used to stop the rotation, the third mode, called "the regime against hydraulic shock", in which the engine is to operate in accordance with the control rule so that hydraulic UD is R is mitigated or eliminated. All these modes are defined in the input logical gates EN1 and EN2 input/output stage 37, and a request for opening/closing is determined by the state of the input logic gate EN3.

As a variant, the device 27 control modes includes a fourth mode called "AE mode", in which the said device 27 management regimes receives the data packet from the device 31 controls the ADC to determine the settings corresponding to the position of the shaft main gear of the engine. The analog signal coming from the port EA1, decode and convert 12-bit packet of data through analog-to-digital Converter (ADC) 30, then the device 31 controls the ADC sends the above-mentioned data packet to the device 27 of the control modes.

Block 25 power control and autopilot defines the commands of the energy bridge transistor of the information sent by the sensor 24 Hall of the engine 17, a pulse-width modulation (PWM), the direction of rotation of the motor 17 and the mode.

Resolver 18, controlled electronic component, such as, for example, AD2S1200, is a position sensor. The voltage of the resolver 18 is generated by a decoder 21, which is an electronic component AD2S1200. Auxiliary signals generated by the resolver 18, decode decoder 21, which converts the above-mentioned vspomogate the global signals in two numeric 12-bit data packet, the first data packet corresponding to the position, and the second data packet corresponding to the speed. The above-mentioned decoder 21 sends the packet data unit 22 controls the decoder, which, on the one hand, sends the device 33 controls the second ADC and the unit 28 of the control data packet corresponding to the position, and, on the other hand, sends it to the processor 23 error data packet corresponding to the speed. Said processor 23 errors periodically checks that the motor 18 rotates, i.e., that the speed of the engine 18 is not equal to zero in the process of executing the command for opening and/or closing.

Moreover, the processor 23 error monitors and detects various types of failures, such as failure of the switch, i.e., when at the same time sent information about the switch opening and closing, locking shaft main gear of the engine, corresponding to the fact that the motor speed is equal to zero, the failure of the resolver, and the said failure is detected by the decoder 21, the negotiation fails, or the detection of an overcurrent.

When a failure is detected the failure information sent to the device 27 management regimes through the device 26 state management. Then at block 28, the control sends the installation, the appropriate mode of damage".

When a failure is detected, and when the device 27 controls what eimai receives a data packet from the device 31 controls the ADC, unit 28 of the control compares these settings with a copy of the regulations. Then the block 28 management strengthens them and determines the direction of rotation and amplitude mismatch. The above-mentioned direction of rotation and the amplitude of the error sent to block 25 autopilot.

When a failure is detected and when the device 27 management regimes does not receive the data packet from the device 31 ADC control device 27 controls the modes sends the unit 28 of the control settings corresponding to "the regime against hydraulic shock". These settings corresponding to "the regime against hydraulic shock" retain in non-volatile memory ROM 29, and they are a function of time in accordance with the following equation:

configuration of power supply = at3-bt2+ct

where a, b and C are constants, a t the time, expressed in seconds.

In Fig.7 shows an example of this function of time. In this particular example, the equation has the following form:

configuration of power supply = 0,067 t3-0,247 t2+0,776 t.

It should be noted that the configuration of the power supply sent by the controller 20 to the circuit 16 of the power supply is a function of at least one parameter, time; however, the above-mentioned configuration, the power supply can be a function of many parameters, without straying from the scope of the Britania.

Mainly, the controller 20, block 25 power control and autopilot, the processor 23 of errors, the device 22 controls the decoder device 31 and 33 ADC control and non-volatile memory ROM 29 is contained in a programmable logic circuit (PLD), such as, for example, user-programmable gate array (FPGA) designed to calculate the adjustment position and/or velocity is proportional to the misalignment between the collected data relating to the position and/or speed of the valve, and collected data related to the mode of supply, and so on

Obviously, a programmable logic circuit (PLD), in particular calculating the adjustment position and/or velocity is proportional to the misalignment between the collected data relating to the position and/or speed of the valve, and collected data related to the mode of supply, without straying from the scope of the invention, may be replaced by any equivalent means, such as, for example, software.

Moreover, the controller 20 mainly includes a means for connection of the above-mentioned controller 20 with an electronic control unit (ECU) adapted for connection to a variety of valve actuators, and/or for connecting the above-mentioned controller 20, at least one other actuator

This architecture allows a wide range of applications. Later in this document set forth a non-limiting example of an application in the system refueling aircraft.

In Fig.8 shows a schematic diagram of a system 100 refueling aircraft, normally used for refueling commercial aircraft such as the A320. System 100 refueling aircraft equipped with solenoid valves 111 connected Wye refill with clutch 112, which sets supply a fuel supply pipeline 113 fuel. In this example, the capacity of the Central fuel tank 114 is equal 8250 liters, and each wing fuel tank 115, 116 has a capacity 6925 litres (internal fuel tanks). Can also be fitted with an additional fuel tank, for example, an additional centre fuel tank ACT (not shown).

In embodiments of the invention proposed equipment 120 for dynamic refueling tank system 121 aircraft, to minimize the time of refueling. Such equipment 120 may properly be used for aircraft with multiple fuel tanks, for example, three of the fuel tank 114,115,116.

Equipment 120 includes a pipeline 113 fuel, three supply line fuel tanks and three of the fuel tank 114, 115, 116. The pipeline refueling, hereinafter the " pipeline 122, has the appropriate tube connected to each of the fuel tanks 114, 115, 116. Connection Wye formed by connecting the J pipe 122. Here, one valve, for example, solenoid valve 123 is located between the inlet a fuel supply and the connection J, so as to function as a main valve on many controlled valves 124,125,126. The valve 124 is connected with the fuel tank 114, the valve 125 is connected with the fuel tank 115 and the valve 126 is connected with the fuel tank 116. Accordingly, each of these valves 124, 125, 126 allows you to disconnect each fuel tank from the pipe 113 of the fuel so that the fuel can be directed where required.

For transmission of a physical parameter indicating characteristics of the flow in the pipe 122, provided in one or more sensors 130. Here, the sensor 130 is a pressure sensor located between the connection J and solenoid valve 123 or any similar main valve is directly connected to the pipeline 113 fuel. The pressure sensor or similar sensor 130 is connected to the electronic control unit ECU. This sensor 130 in combination with the corresponding valve actuator Assembly also connected to the electronic control unit ECU, allows you to regulate appropriate when Oreste flow during refueling. The sensor 130 may also be substituted by one or more meters velocity located properly in the pipe 122, each produce signals indicating the speed of the stream.

Pressure data measured by the sensor 130 in the pipe 122, and the data about the opening of the first valve 124, 125, 126 receive the receiving module M electronic control unit. The module M is made to estimate the corresponding parameters of the first flow valve using pressure data and position data.

All valves 124, 125, 126 can be equipped with actuators and positioners to set the valve-flow control valve which controls the flow of fuel. Referring to Fig.4A and 4B, which schematically illustrates a non-limiting example of the architecture of the valve-flow regulator, In case the valve may be a ball rotating in the normal positioning device (not shown) driven by the servo motor 131 or equivalent servomechanism. Here, the sensor 132 position outputs a signal indicating the position of the body In the valve. If the motor element of the servo motor 131 of the rotary type, the sensor 132 may determine the angular position of the housing In the valve or other element attached to the housing In the valve. The opening of the valves 124, 125, 126 can be what about the choice set at a desired open position between a fully open position, as shown in Fig.4A, and a closed position, as shown in Fig.4 C. as a result, there may be a flow rate between the two valve channels a ball valve. The actuator allows real-time to adjust the opening the corresponding first valve. The angular position of the rotary mechanism D can accurately set the coefficient opening the housing In the valve.

While presented here passing the ball valve, rapid response and durability, it is clear that the first valve 124, 125, 126 are not necessarily ball valve or similar valve a quarter turn. In the General case, each valve 124, 125, 126 includes a valve body with many adjustable positions between a fully open position and a closed position, in order to allow regulation of flow or fuel pressure or a similar liquid, which must be stored in the respective fuel tanks 114, 115, 116.

The position control of the respective housings of the valves may also take into account data on the flow setting and data about the fuel level. Here, the data about the fuel level can be obtained by measuring the level of fuel in each fuel tank 114, 115, 116, which need to refuel. One, and preferably many units 134, 135, 136 for izmereniya to be associated with each fuel tank 114, 115, 116 to provide the electronic control unit ECU signal indicating the measured fuel level. In the process of refueling the electronic control unit processes the signals from the sensor 130 and units 134, 135, 136 to measure, to dynamically adjust the opening of the respective first valves 124, 125, 126. The signals from the sensor 130, or any other similar sensors, thus, transform in the data flow through the first valve, while the signals units 134, 135, 136 to convert measurement data about the fuel level. These data or any similar data from electronic control unit ECU, used to determine the individual needs of the respective fuel tanks 124, 125, 126.

1. The actuator (1) valve, including:
- body (2),
- the engine (4) is electrically associated with the primary power source and connected with the valve, with the possibility of changing the position of the valve from the first position in which fluid flow may occur, at least along the same path, to a second position in which fluid flow is either blocked, or may be, at least along a second path,
at least one sensor (24, 132), made with the ability to determine or valve position or speed valve
switch (16), driving the second power supply to the motor (4),
diagram (19) power supply connected to the switch (16) which includes a controller (20) connected to at least one sensor (24, 132) and the scheme (19) power supply, and is designed to collect real-time data relating to the position or speed of the valve, and data relating to the mode of supply, to compute the adjustment of the position or the speed is proportional to the misalignment between the collected data related to the position or speed of the valve, and collected data related to the mode of supply, and to transfer the new settings in the power circuit (19) of electricity, which amplifies the signal controller.

2. The valve actuator under item 1, characterized in that the valve is a ball valve.

3. The valve actuator under item 1 or 2, characterized in that it further comprises a gear connecting the motor (4) with the valve.

4. The valve actuator according to any one of paragraphs.1-2, characterized in that the motor (4) is a brushless motor.

5. The valve actuator according to any one of paragraphs.1-2, characterized in that the configuration of the power transmitted by the controller (20) in the scheme (19) power is a function of at least one parameter.

6. The valve actuator on p. 5, characterized in that the configuration of the power transmitted to the a key (20) in the scheme (19) power supply, are a function of time.

7. The valve actuator according to any one of paragraphs.1-2, characterized in that the configuration of the power transmitted by the controller (20) in the scheme (19) power supply, retain in non-volatile memory (29).

8. The valve actuator on p. 6, characterized in that the configuration of the power supply are a function of time according to the following equation:
configuration of power supply = at3-bt2+ct,
where a, b and C are constants, a t the time, expressed in seconds.

9. The valve actuator according to any one of paragraphs.1-2, characterized in that it contains means for estimating engine failure.

10. The valve actuator according to any one of paragraphs.1-2, characterized in that the controller (20) includes a tool intended for connection of the above-mentioned controller (20) with an electronic control unit (ECU) is designed to connect to multiple drives (1) valve.

11. The valve actuator according to any one of paragraphs.1-2, characterized in that the controller (20) includes a tool intended for connection of the controller (20), at least one other actuator (1) valve.

12. The valve actuator according to any one of paragraphs.1-2, characterized in that the motor (4) includes a sensor (24) Hall for determining the position and/or rotation of the mentioned engine (4).

13. The valve actuator according to any one of paragraphs.1-2, characterized in that the gear unit connecting the motor (4) with the valve VC is uchet in itself a worm gear (11, 12).

14. The valve actuator on p. 13, characterized in that the gear unit includes a handle having a shape providing for its manual rotation, either by capture or by using a tool.

15. The valve actuator under item 14, characterized in that the gear unit includes a coupling Assembly connecting the handle to the valve stem and gear.

16. The valve actuator according to any one of paragraphs.1-2, characterized in that the controller (20) includes means to compute the adjustment position and/or velocity is proportional to the misalignment between the collected data relating to the position and/or speed of the valve, and collected data related to the mode of supply.

17. The valve actuator according to any one of paragraphs.1-2, which further comprises means adapted to detect failures in the actuator (1) valve, such as a failure of the controller (20), an erroneous valve position or, for example, the current overload.

18. The valve actuator on p. 17, in which when a failure is detected in the drive (1) valve opening and/or closing of the valve is performed with a constant velocity.



 

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Break indicator // 2511862

FIELD: electricity.

SUBSTANCE: invention suggests break indicator (24) to be used in rupture disc assembly (12). Break indicator (24) contains non-conductive material having external sleeve ring portion (66) and internal section (68) connected to the external part by a pair of jumpers (70, 72). The circuit containing electric conductive segments (78, 80) is placed on the break indicator (24) and can be used for monitoring of rupture disc integrity (20). One electric conductive segment (78) is placed at the external sleeve ring portion (66), while the other electric conductive segment (80) passes through jumpers (70, 72) and internal section (68). When rupture disc (20) is broken one of jumpers (72) carrying electric conductive segment (80) is open thus breaking the circuit.

EFFECT: improvement of the indicator.

41 cl, 7 dwg

FIELD: machine building.

SUBSTANCE: according to the invention, a point in the process is considered in the method and in the device, when state and performance of a distributing valve is followed up. At monitoring of the valve state, process measurements are used in addition to measurements inside valve (LF) so that process measurements identify working point ("Др"valve, hvalve, ps), at which the valve operates, and those measurements inside the valve are observed at those working points to detect changes and to determine the valve state. In compliance with the invention aspect, variables ("Др"valve, hvalve, ps) representing the working point of a production process are considered when load changes are observed, which are related to friction of the valve, and/or changes in power drive load factor (LF).

EFFECT: improving measurement accuracy.

22 cl, 8 dwg

FIELD: machine building.

SUBSTANCE: system can use different combinations of sensors to provide necessary data for calculation of integrity of the component the characteristics of which deviate from normal ones. In order to specify potential failure of the component, alarms can be generated. Namely, the system can detect potential wear and/or errors of springs of the actuator, a pneumatic tube and bellows seals.

EFFECT: system can be connected to the control network through a technological process to form a more complicated alarm system; in order to improve detection accuracy of the system, additional statistical methods can be used.

31 cl

FIELD: measurement equipment.

SUBSTANCE: in a vessel of a pressure difference indicator there are insulated holes. In one of holes there is a spring-loaded magnetically operated sealed switch. In another hole there is a movable system with a permanent magnet. Specified holes are arranged in parallel. The movable system comprises a fixed bushing with a spring-loaded piston and a guide. The permanent magnet is fixed in the piston body perpendicularly to its axis in the plane stretching via the axis of the magnetically operated sealed switch and is spring-loaded.

EFFECT: simplified tuning of a pressure difference indicator providing for efficient usage of a filter.

2 cl, 2 dwg

FIELD: construction.

SUBSTANCE: feature of methods and devices according to the first and section versions is the fact that in devices, through which methods are realised, an autonomous pressure source (compressor) is used. A testing substance from a compressor (air under excessive pressure) fills cavities of diagnosed valves and simultaneously acts at functional blocks via a pressure sensor for implementation of continuous automatic registration of measurements in an analogue mode with simultaneous issue of results. The feature of the method and devices according to the third and fourth versions is the fact that in devices, via which the methods are implemented, there is no autonomous pressure source - a compressor, and the testing substance for valves diagnostics is a medium in the pipeline, on which the diagnosed valves are operated. The testing substance fills cavities of the diagnosed valves and simultaneously acts at functional blocks via pressure sensors, which implement continuous automatic registration of measurements in an analogue mode with simultaneous issue of results on tightness of a gate of stop pipeline valves.

EFFECT: reduced repair cycle of operated pipeline valves.

8 cl, 4 dwg

FIELD: machine building.

SUBSTANCE: invention relates to water and air feed valves for water sprayers intended for example for making at artificial snow. Valve (1) comprises body (2) with two independent paths (C1, C2) for air and water circulation. Each of said paths (C1, C2) comprises: chamber (5, 15) with slide valve (6, 16), fluid inlet channel (7, 17), fluid discharge channel (8, 18) and channel (9, 19) to discharge fluid from said outlet channel (8, 18). Valve incorporates control means for driving said slide valves (6, 16) to open position for fluid flow whereat said emptying channel (9, 19) is shutoff and to closed position for shutting-off of fluid flow whereat said channel (9, 19) is open. Said control means incorporates common drive (25) for control over said slide valves (6, 16) and structure (26) for mechanical connection of said valves (6, 16) to allow simultaneous control there over inside their appropriate chamber (5, 15). Invention covers also the method of application of above described valve.

EFFECT: higher reliability.

24 cl, 11 dwg

Valve assembly // 2482370

FIELD: machine building.

SUBSTANCE: valve assembly for control of fluid medium supply from a high pressure header to a working chamber of the mechanism operating with fluid medium includes the main valve, an auxiliary valve, and electromagnet and a core. The main valve includes an element of the main valve with the seating on the surface and the seat of the main valve. An auxiliary valve includes an auxiliary valve element. The auxiliary valve opens before the main valve so that pressure on the main valve element can be balanced. The core is connected to the auxiliary valve element and has the possibility of being moved along the channel passing between the first position and the second position. The connection between the core and the auxiliary valve element has the possibility of ensuring the core movement from the first position to the second position without the corresponding movement of the auxiliary valve element. The core moves from the first position closer to the electromagnet when the auxiliary valve opens by means of forces applied through the connection between the core and the auxiliary valve element. The mechanism operating with fluid medium is described.

EFFECT: creation of the valve assembly that is capable of being opened quickly against considerable pressure difference, thus reducing the power consumption.

17 cl, 10 dwg

FIELD: machine building.

SUBSTANCE: valve has the possibility of being attached to fuel tubes and includes movable head in valve body. Head is turned about axis in valve body and rigidly attached to the first end of driven shaft brought into rotation by means of electric drive mechanism. Head includes a through hole with axis and has two stable positions on two ends of head rotation zone. Axis of hole is oriented so that fuel flow via tubes is available in the first open position of the head. Axis of hole is oriented so that fuel flow via tubes is prohibited in the second closed position of the head. Valve includes torque moment formation devices and position determination devices. Torque moment formation devices are rigidly attached to head and form torque moment on drive shaft, which changes depending on head position in valve body. Position determination devices supply signals characterising the positions of the above drive shaft. Valve operation diagnostics device and method are described.

EFFECT: higher reliability of device.

10 cl, 6 dwg

FIELD: machine building.

SUBSTANCE: drive two-stage multi-plane-pinion planetary gearbox comprises input shaft 4, support central wheel 11, two-support planet carrier 6, plane pinions in number corresponding to odd number of said pinions in every stage and arranged in pairs on said carrier 6, and two-support output shaft 19 with output central wheel 12 fitted thereon. Axes of motor rotor 7, input shaft 4, carrier 6 and output shaft 19 are arranged inter-aligned and aligned with shutoff valve spindle travel axis. Stator covers rotor and is secured on the flange of housing 1. Input shaft, pinion carrier and reduction gear output shaft are hollow components. Sums of central wheel teeth in both planetary stages are equal and selected from the range of 200…400. Numbers of second stage central wheels are selected from parameters series.

EFFECT: higher reliability and efficiency, decreased sizes.

12 cl, 2 dwg

FIELD: machine building.

SUBSTANCE: multi-way valve (30) includes body (31), head (32) from which outer end (33) of rotary stem (34) of valve projects, and actuator (1). Head (32) of valve has connection means (35) for movable connection of actuator (1) to housing (31) of valve and outer end (33) of valve stem (34), which has attachment surfaces (36), for fixed interaction with the first end (11) of connection element (10) the other end (12) of which interacts in rigid manner with rotary control shaft (2) of actuator (1). Connection element (10) has the possibility of being reversed. Both ends (11; 12) of connection element (10) are provided with central hole (13) and toothed rim (15, 16). One hole (13) is provided with possibility of fixed interaction with attachment surfaces on external end of valve stem of the first type. The other central hole (14) is provided with possibility of fixed interaction with attachment surfaces (36) on external end (33) of valve stem (34) of the second type. Each toothed rim (15, 16) envelopes the corresponding hole (13, 14), and when it faces the opposite side from valve head (32), it interacts with gear teeth (3) in rigid manner. Those teeth are made on mating end of actuator shaft (2) of one and the same type. There is the second invention object.

EFFECT: enlarging functional capabilities owing to using one and the same actuator and one and the same connection element for various types of rotary valve stems.

12 cl, 2 dwg

FIELD: fire fighting systems.

SUBSTANCE: invention refers to protection drive device with emergency protection circuit and can be used in firefighting and monitoring systems used in the sphere of air conditioning, heating and ventilation. Protection drive device (10) with circuit (12) of emergency protection installs damper or valve into the set position ensuring safety for regulation of volumetric gas or flowing medium flow. The important parts of the device (10) are the executing mechanism (14) with controlled electric motor (28), unit (20) of capacity storage, energy converter (22) with energy module and power unit (18). During normal operation electric current in the energy module of converter (22) is converted into lower voltage and the charge is stored in the unit (20) comprising at least one double-layer condenser. In case of voltage decrease lower the set value or in case of electric supply failure the accumulated electric charge is converted with the same energy module into higher voltage, and as a result, the electric motor (28) works until the set position ensuring safety is reached.

EFFECT: simplification and improvement of emergency protection circuit.

25 cl, 9 dwg

FIELD: electricity.

SUBSTANCE: electromechanical drive includes electric motor, stator, rollers and output stock. Stator encloses hollow rotor. Rollers are equipped with external thread and arranged in cavity of rotor in threaded sleeve in circumferential direction. Axes of rollers are parallel to rotor axis. Screw is coaxially arranged inside rotor. Screw has external thread. Thread of screw interacts with thread of rollers. Thread of rollers interacts with internal thread of sleeve. Sleeve is rigidly attached to one end of output stock. The latter is installed so that it is protected against being turned. One screw end is rigidly attached to rotor. The other end of screw is arranged in cavity of output stock.

EFFECT: higher reliability of electromechanical drive.

9 cl, 3 dwg

FIELD: machine building.

SUBSTANCE: invention is designed for application of device preventing rotation of servo-motor mounted on driven shaft of rotary shut-off gate of gas-transporting pipe. In particular, this gate can be positioned in a structure of a heating pipe, ventilation, air conditioning or smoke pipe. Device preventing rotation of servo-motor (10) is set with geometric lock and/or power lock on projecting driven shaft (22) of rotary shut-off gate (62) of gas-transporting pipe (34). At least one shifting lengthwise bracket (36) maintaining servo-motor (10) is positioned at adjusted axial distance (a) from driven shaft (22).

EFFECT: simplified assembly and operation of device.

10 cl, 10 dwg

FIELD: transport.

SUBSTANCE: valving drive comprises reversible motor and extending spindle. The latter is coupled with valve gate. Reduction gear is arranged between motor and extending spindle. Reduction gear consists of housing, drive cam shaft, bevel pinion, cone coupling, sliding nut and hollow output shaft. The latter is arranged aligned with extending spindle. Helical pinion is a two-rim pinion. Said helical pinion is jointed with housing and engaged with two-rim pinion rim. Cone coupling is jointed with hollow output shaft and engaged with two-rim pinion rim. Sliding nut is fitted at hollow shaft lower part.

EFFECT: motor reduced rpm for lifting valve gate at drive lower weight and smaller sizes.

1 dwg

FIELD: machine building.

SUBSTANCE: drive of valve consists of case, valve rod, spring and of driving devices. The rod is connected to a gate element. The gate element travels between the first and the second positions. The spring shifts the gate element from the said first position into the said second position. The first driving devices are designed for tension of the spring and for retaining the spring in a compressed state. The second driving devices are designed for transfer of the gate element from the first position into the second position. The second driving devices include a transmission with a roller screw. Also the second driving devices operate independently from the first driving devices. Releasing devices free the spring to return the gate element into the second position. There is disclosed the version of design of the valve device for this drive.

EFFECT: increased speed of response for valve opening in emergency cases.

7 cl, 10 dwg

Valve drive // 2262024

FIELD: closing and opening large valves.

SUBSTANCE: proposed drive is provided with engine which acts on threaded rod by means of transfer mechanism. Nut of transfer mechanism is screwed on threaded rod. Transfer mechanism is provided with clutch consisting of two members which are thrown into engagement by means of toothed rim of one member and toothed rim of other member. One member is movable in axial direction during rotation of said member relative to each other. Shifting member is connected with switch.

EFFECT: automatic adjustment of valve to different valves.

14 cl, 5 dwg

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