Compressor unit

FIELD: transport.

SUBSTANCE: proposed compressor unit comprises drive and air compressor. Compressor unit incorporates oil coarse filter and/or oil fine filter built in bearing plate and communicated via said plate with one of components. Bearing plate comprises connecting elements for oil stock reservoir and/or coarse oil filter reservoir.

EFFECT: simplified design, hydraulic communication lines in bearing plate.

13 cl, 6 dwg

 

The proposed invention relates to a compressor device, preferably for installation in rail vehicles for operation of the various devices operating on compressed air, with many components at least including the drive mechanism and driven by the drive mechanism of the compressor for sealing compressed air.

This kind of compressor devices that meet the requirements when it was embedded in the rail vehicle, is widely known. They are made often in the form of a screw compressor to provide a rail vehicle with compressed air to fuel, for example, a pneumatic brake system. Currently, in the field of rail transport modified or used industrial compressors in the form of compact structures connected by means of pipe components, or used modular units, which have compressors, made, for example, as a built-in cast or welded hull. In particular, compressors, made with cast or welded housings, the actual block screw compressor is inserted in the space provided for this cavity, and the fragment of another, necessary for the operation of the compressor component is embedded in orpus compressor.

From DE 10085923 A1 is known a compressor device is provided, in particular, for use in rail vehicles for procurement of compressed air. Due to the location of the drive mechanism, preventivnogo to the compressor end and the other located on the housing of the compressor components compressor has only a slight flexibility in relation to compliance with various design spaces and applications or variants of implementation. Additionally required external piping systems, cable network and hose couplings for hydraulic or electrical connections of the individual components with each other.

From WO 01/49172 A1 is detected compressor device in the form of a pump, which is an integral part of the unit of measurement of blood pressure. In such a compressor device is functionally integrated housing, which passes through a system of channels and which is, therefore, not only performs the mechanical function of fastening. This saves at least a portion of the required, however, the outer tube of the frame.

FR 2559553 reveals compressor device for filling compressor of the vehicle, which by means of its components mounted on a common carrier plate This bearing plate does not assume, however, any functions of the hydraulic or electrical connections and is also part of the circulation path of the lubricant.

FR 2776878 identifies the location of the pneumatic components mounted on a common carrier plate, which in terms of functional integration also includes the hydraulic channels. Of course, the degree of embedding such carrier plates are not so high that there were also incorporates tools and electrical connections, not to mention the elements of the circuit of the lubricant. Further, this bearing plate is not provided for mounting the compressor, and for attaching other pneumatic components, such as control units, valves and so on.

EP 1031727 A2 detects the compressor device is provided for use in rail vehicles with the goal of filling the brake system with a pneumatic actuator. Of course, when both principles are not using comparable with the solution in accordance with the invention functionally integrated supporting plate. However, there are supporting structures, which have built-in channels for medium pressure (Figure 4), however, is not further functional integration.

The task of the proposed invention is, therefore, the WMD the compressor device, high flexibility with respect to compliance with the specified design space, and requires little investment in the creation of a hydraulic connection.

This problem is solved by means of the compressor device in accordance with the restrictive part of paragraph 1 of the claims in conjunction with its distinguishing characteristics. Preferred embodiments of the invention are presented in the subsequent dependent claims.

The invention includes the technical solution according to which at least one part of the components are mechanically connected respectively with the bearing plate, and a corresponding mechanical connection, at least partially has a hydraulic and/or electrical connecting elements for connection located on the carrier plate components by built-in carrier plate transactions.

This solution provides the advantage that the bearing plate due to its flat design acts as a distributor streams environment, and as a carrier placed on the carrier plate components. Due to the location of the necessary components to work on the carrier plate revealed extremely high flexibility regarding the layout of the components, so th is is possible negotiation with the specified design space, and even quick time agreed with the wishes of the client without changing the compressor casing. The compressor can be made as a screw compressor, which, in fact, can be assembled regardless of the variant of implementation of the compressor device. The consequence of this is the reduction forming device details since it is possible to locate the various components in various combinations on the same carrier plate, in order thus to achieve a responsible purpose, an extremely large number of variations with a relatively small number of basic structural elements.

Moreover, the carrier plate provides not only the mechanical connection of the components, but also, due to the hydraulic connection, controls the flow of individual environments, which are represented here by compressed air and compressor oil, which properly is sent from one component to the next component, allowing for the most part there is no need to use external tubular frame and hose connections. This reduces the number of additional sealing seats, the number of parts and Assembly time, which contributes to a further increase nade the activity, and budget execution system.

The components of the device include, in particular, the compressor is made in the form of a screw compressor, a drive mechanism for driving the compressor, either through direct connection of the shaft to the shaft, either by belt or by other transfer, and, in particular, the possible differences between the compressor with liquid lubricant and compressor without oil. When using the compressor with liquid lubrication system required the oil supply device constructed from a large number of devices that can be placed on the carrier plate. The drive mechanism may be implemented either as an electric drive mechanism, or may contain other mechanical or hydraulic drive mechanism. In principle, such a device seems rational in relation to other rotary compressors, and certain modifications could, however, also be used in reciprocating compressors.

Components of the device may be located either on one side of the carrier plate, or on both sides of the carrier plate. The carrier plate preferably has a rectangular, in particular square, and the drive mechanism can have a separate drive carrier plate. As the carrier plate and the drive bearing plate and out respectively side holes or the like for fastening elements, they can connect to each other in various ways. For example, when a square version of the carrier plate in terms of flexible arrangement of the individual elements of the device relative to each other drive bearing plate drive mechanism can be located on all four different sides and by means of the fastening elements secured on the carrier plate. This bearing plate, and the drive bearing plate are preferably in the same plane, and the drive mechanism of the compressor can be implemented by means of an electric drive motor through a belt connection or something similar. Alternatively, the motor can be mounted the compressor on the opposite side of the carrier plate, and the drive shaft or the connection between the drive mechanism and the compressor passes through the carrier plate. In principle, the design may consist of one or any number of bearing plates, which could take any form, connection, or position relative to each other. The carrier plate can be produced in various ways, for example, in the form of the casting, welded, glued, framed within a pipe, welded or have another seam construction. With this arrangement, when the carrier plate, and the guiding chosen to replace the I plate are located in one plane next to each other, can be used, in particular, screws passing through mounting holes located on the side edge of the respective plates. Bearing plate when switched actuators at least partially may also perform the function of the gearbox housing (lubricant) or belt drive (protection of the drive).

The carrier plate has a built-in connecting elements or for different environments for the compressor, such as compressed air or oil, or oil mist, or for receiving electrical connections. Thus, there is no need for the pipe system and hose connections between the components of the device as they are at least partially embedded in the carrier plate. Mechanical connecting elements on the carrier plate for the individual components of the device include, first of all, fixing options, such as screw holes, apertures or other connecting means, and further provided connecting elements or depth contours for the implementation of hydraulic transaction. In addition, the carrier plate can be cut out passages to ensure accurate reception of the components, so that they both could be sealed by the sealing means. Thus the om, in the carrier plate/carrier plate as subsequent components may be located, for example, the oil filter of rough clearing and/or thin oil purifier, and they are built separately and hydraulically connected through the carrier plate, at least one of the components. They are mounted directly on the carrier plate, and a hydraulic connection is made on the carrier plate from the side of the flange or oil filter or thin oil purifier. By connecting the separators on the flanges is obtained the closed space of the coarse filter, and, for example, for fastening or for receiving so-called Raschig rings, filter elements or filters in the carrier plate are corresponding indentations. Thus, the air mixture can penetrate the separator, and after separation of the oil, cleaned air is transferred on to the carrier plate. Separated oil through a separate channel in the carrier plate can be directed to the oil reservoir. The separator may be a fully molded or may be secured in any other way. Compliance with different volumetric flows of the compressor may occur, for example, by aligning the space of the coarse filter.

In accordance with other national improvements is ofanim variant of the invention proposes, to the compressor device includes a device for adjusting the temperature of the oil, and it is embedded separately in the drive carrier plate and hydraulically and/or electrically by means of a carrier plate connected to at least one of the components. The Adjuster oil temperature may be in the form of an oil thermostat, which is preferable from the outside can nevinovate on the carrier plate, and the oil flow is inside a carrier plate, flows past thermostat. Thus, do not require a separate device for placing an oil thermostat, as it can be fixed directly on the bearing plate or bearing plate. If there is an advantage in the availability of oil thermostat on the outside of the device that provides the convenience of maintenance.

From design considerations of particular advantage is the fact that the device offers electronic unit built into the carrier plate or located separately on the carrier plate, and at least the electrical connections are embedded in the carrier plate or are, at least, over the bearing plate. The electronic device may be built into the terminal box, made in the form of a deep recess in the carrier plate. So about the time, along with hydraulic connections within the carrier plate to save a freelance incorrect connections may be provided and electrical connections. Terminal box can be a while in the preferred embodiment, a single electrical interface for connecting external places of power or signal. Along with connecting elements or control for an electric drive mechanism can be provided, and other electronic devices that may include, for example, soft starter or frequency Converter or fragments of it, and the embedding accordingly, there is no need for in-house case, additional fasteners or cable wells and so on. It is also possible to embed electronic components for the control of performance or functional diagnostics devices. It may optionally also include an output device, which is also embedded in the carrier plate or attached to it. Since the other components mounted on the carrier plate by direct contact, predominantly possible to abandon a separate grounding devices.

The device may include a heat exchanger mechanically mounted on the carrier dps is the same. Moreover, the heat exchanger can be located with the end face of the electric drive mechanism, the side of the electrical drive mechanism or between the electric drive mechanism and the bearing plate either in the radial or axial performance of the fan. The heat exchanger is used for cooling the compressor, in which compressed air and/or oil is cooled by convection heat flux or something similar. Hydraulic coupling elements of the heat exchanger can be performed, depending on the location and also directly above the mechanical connecting elements of the heat exchanger with the bearing plate.

Alternatively, a separately made heat exchangers bearing plate may have ribbing or the like, whereby heat exchange is carried out. Ribs may be cast or made in the form attached sheet items. Thus, the dimensions of the structure can be reduced, and the absence of a separate heat exchanger reduces the number of individual structural elements. In accordance with a possible further improvement of the invention it is proposed to provide a carrier plate connecting elements, at least one stock tank oil and/or oil tank sight of the Titel. The connecting elements can be made not only in the form of mechanical connecting elements, but also as a hydraulic connecting elements, so that the oil goes directly into the tank.

The connecting element on the carrier plate, receiving the oil reservoir may have a large number of mounting holes, and simultaneously can be provided by the elements of the oil supply and drain the oil through the connection form directly tightly with the surface of the carrier plate hydraulic connection. While on the carrier plate can be provided pre-heat the oil reservoir to the start of the compressor to improve the reliability of operation at low temperatures. Through the heated tank can be increased interval between oil changes, and the heating device is integrated in the carrier plate. It would then be possible and an electric heating device, in particular for compressor oil, embed, so that, for example, it was possible to refuse a separate seal due to the failure of the direct introduction of the heating element in the oil. The heating device may also be in the tank for the storage of oil.

In a preferred embodiment, the carrier plate clicks the duty to regulate the mechanical connection to the compressor, at least one part of the compressor housing. When this part of the body proper of the screw compressor element can be embedded in the carrier plate. This means, however, on the one hand, the loss is particularly desirable in this case, flexibility, however, makes it possible, on the other hand, further reducing the number of interfaces and weight loss.

Other conventional screw compressor components such as air filter, suction valve, suction regulator, unloading valve, minimum pressure valve for circulating oil pressure relief valve, as well as shock-absorbing device for supply and exhaust air can also be mounted on the bearing plate or bearing plate. And here we have a savings supply transactions, dimensions and mass.

In addition to the basic functional elements of the compressor can be embedded in the carrier plate or fastened on the carrier plate and also preparing air. Here it should be noted the device rough separation of water or oil after compression and before drying. Thus the carrier plate can also serve as a carrier plate of an air dryer, which is directly attached or in which are embedded, for example, tanks with desiccant. Other E. the elements of air dryers, such as valve and the heating device, and an electronic control unit dryer can also be fixed directly on the carrier plate or mounted on it, thanks again, you can save on individual buildings. If mounted integrated unit air dryer, an advantage in terms of saving separate fastening devices.

Fixed also on the carrier plate valve for a compressor may include a valve minimum pressure to maintain a minimum oil pressure and/or, at least, suction check valve.

When mounting the unit as a whole an advantage consisting in that the carrier plate serves as the base/suspension and, thus, eliminates the need for separate fasteners. Further eliminates the need to use your own frame or carrier, as the carrier plate serves as such. Thus obtained, the compressor unit can be provided with a shell or coating provided for aesthetic or acoustic considerations, and bearing plate may be partially or fully assume the function of the lower structure or the side wall.

These opportunities to embed with the corresponding consequent advantage of the substations are designed according to the proposed invention for operating without lubrication of rotary screw compressors, moreover, they can be one-, two - or multi-stage, and also for compressors running on other injected environments, for example on the water. This eliminates the need for specially used only in case of the variant embodiment of the invention as a machine that uses oil, conditions/functions, such as, for example, oil separation, a large supply of oil, and so on.

To further improve the invention of the activities are presented in the dependent claims or are described in more detail below in conjunction with the description of the preferred embodiment of the invention based on the drawings on which is shown:

figa is a perspective view of the compression device with an electric drive mechanism located on the carrier plate, and with the compressor located on the carrier plate;

fig.1b is a perspective view of another embodiment of the invention, the compressor device with an electric drive mechanism located on the carrier plate, and with opposite compressor;

figure 2 is a perspective view of the carrier plate side mount compressor device;

figure 3 is a perspective view of the carrier plate with 2 on the rear;

4 is a perspective view of the carrier plate for the reception of electric drive device.

figure 5 - VI is on top of the mechanical-hydraulic coupling element carrier plate for receiving the oil filter of rough clearing.

Shown in perspective in figure 1, the compressor device 1 is provided together with essential components, as it can be made and powered as a module, embedded, for example, in a rail vehicle. The compressor device 1 includes this drive mechanism 2, which is in accordance with the proposed embodiment of the invention is designed as an electric drive mechanism. For sealing compressed air next to the drive mechanism 2 is the compressor 3, which is made as a screw compressor, and transmission of the drive movement is performed by means of a belt drive 4. Carrier or frame construction device 1 is formed by a carrier plate 5 and through the drive carrier plate 6. The carrier plate 5 serves to receive various components of the compressor, for example compressor 3 or reservoir 7 supply of oil, while the drive carrier plate 6 serves for receiving mechanical drive mechanism 2. The carrier plate 5, and the drive bearing plate 6 is made of a rectangular or square, and both plates 5, 6 are connected to each other on respective side surface. In accordance with the submitted example of the invention, the carrier or the 5 by fasteners - not shown here is mounted on the drive carrier plate 6, and fasteners passing through mounting holes 8. As on all four lateral surfaces of the carrier plates 5 are provided mounting holes 8, the drive carrier plate 6 can be either side mounted on the carrier plate 5, so that depending on the given embedded space device 1 it is possible coordination with the main structure. As the components on the compressor side, located on the carrier plate 5, and is located on the drive carrier plate 6 drive mechanism 2 mounted on the same side of the respective plates 5, 6, while the belt drive 4 is located on the opposite side. While the shafts of the drive mechanism 2 and the compressor 3 is made passing through the supporting plate 5, or drive through the bearing plate 6, and the belt drive on the opposite side can be closed by means - not shown - hull.

On the back of the drive mechanism 2 includes a heat exchanger 9, the fan which is also mounted on the drive shaft of the drive mechanism 2 and, thus, is driven. The heat exchanger 9 through the fan is designed so that the fan is not only in itself creates a convection flow in the heat exchanger 9 and cools PR the water mechanism 2. Cooled environments can be as compressed air, so necessary for operation of the compressor 3 oil.

Fig.1b shows another variant implementation of the compression device with an electric drive mechanism 2 and mounted behind the heat exchanger 9, and the drive mechanism 2 is located directly on the carrier plate 5. The compressor 3 is mounted on the opposite side, so that the drive bearing plate 6 is missing. The carrier plate 5 includes, therefore, all important components, and the actuation of the compressor 3 is made by passing through the carrier plate 5 of the drive shaft.

In figure 2, and figure 3 bearing plate 5 shows in a perspective image, and she is depicted in figure 2 by the fastening components of the compressor, such as compressor 3, while figure 3 bearing plate 5 depicts a side fastening of the drive mechanism 2. Mounting plate 5 has a large number of connecting elements 10, which, together with the places of mechanical joining of the individual components to the carrier plate 5 also include hydraulic connection. The connecting element 10 is designed in such a way that respectively connected components in the carrier plate 5 is made corresponding connecting elements, i.e. provided the us, for example, the connecting element 11 of the oil reservoir, the connecting element 12 of the seal, the connecting element 13 terminal box for connection of electrical wires, the connecting element 14 thin oil purifier, the connecting member 15 of the valve the minimum pressure, the AC coupling element 16 and the connecting member 17 of the oil thermostat. The connecting element 12 of the compressor corresponds to figure 3 of the connecting element to the drive mechanism 2 is not depicted here, in accordance with proposed example of the invention, the drive shafts of the drive mechanism and compressor have a direct connection without the use of a belt drive. Along with other connecting elements, such as the connecting element 19 to the oil supply for the reception of the filter (figure 2)and the connecting element 18 of the oil filter of rough clearing (figure 3), provided by others - not shown here in more detail, the connecting elements for receiving various hydraulic, mechanical or electrical components. The carrier plate 5 has lateral surfaces of the mounting hole 8 provided for the mechanical fastening of the drive carrier plate 6, so that through the mounting holes 8 can is to be conducted by connecting elements, such as the above-mentioned screws. Due to the presence of the corresponding mounting holes on each side of the carrier plate 5 drive carrier plate 6 can be mounted on the carrier plate 5 from either side.

Drive bearing plate 6, are presented in figure 4, serves, in particular, to accommodate the drive mechanism 2 is not depicted here. The placement of the drive mechanism is performed by the centering device 20 of the engine, which directed radially inward, moving the centering elements places the actuator in the desired position. These have the form of strips standardized elements forming device 20 of the centering of the engine, can be treated accordingly to the motor flange, so that can be used by various drivers. Having the form of laths standardized items are on the top side holes 21 for mounting the engine to fix it, for example via a screw connection. To reduce the weight and material of the drive carrier plate 6 may have a notch, and the material may contain, for example, aluminum or molten metal. As the carrier plate, drive bearing plate has mounting holes 8', located coaxially with the mounting holes 8 of the carrier plate, for use of joint crainiceanu.

Figure 5 shows the connecting element 18 of the oil filter of rough clearing, as the coupling element is provided on the carrier plate 5. The connecting element 18 of the oil filter of rough clearing includes, along with the connecting element 22, mechanical lock and hydraulic channels 23 (seen in section), deep in the carrier plate. Thus creating the possibility of the oil filter of rough clearing inside the device 1 without the use of external or separate pipe or hose connections. Waste oil can be directed inside a carrier plate, for example, to the oil reservoir, and flowing in the hydraulic channel 23 compressed air can be supplied to the oil filter with a high content of oil and cleaned air through the other fluid channel 23a to further processing may be output to the outside of the coupling element. In accordance with the proposed example according to figure 5 of the connecting element 18 of the oil filter is provided for the oil filter of rough clearing with large volume flows, while equally can be attached to the oil filter of rough clearing, provided for small volume flows. Inside the junction element oil filter on the basis of the special geometric execution of the internal circuits can be performed in the receiving hole 24 with rings process, moreover, in accordance with the proposed example of the invention, the grid ring process is depicted in phantom line.

The invention is not limited in its execution of previously submitted the preferred embodiment. On the contrary, there may be options that use the proposed solution and different variants of implementation. It is also possible that the carrier plate (5) and drive the bearing plate (6) will be made whole.

DESIGNATION

1 compressor device

2 drive mechanism

3 compressor

4 belt drive

5 bearing plate

6 drive bearing plate

7 the stock tank oil

8, 8' mounting hole

9, the heat exchanger

10 connecting elements

11 connecting element of the oil reservoir

12 connecting the compressor element

13 connecting element terminal box

14 connecting element thin oil purifier

15 connecting element valve minimum pressure

16 AC coupling element

17 connecting element oil thermostat

18 connecting element oil filter

19 connecting element for the flow of oil

20 device centering motor

21 hole for mounting motor

<> 22 connecting element mechanical fastening

23 hydraulic channel

24 receiving hole rings process.

1. The compressor device (1) for installation in rail vehicles for operation of the various devices operating on compressed air, with a large number of components, at least, includes a drive mechanism (2)and driven by a drive mechanism (2) compressor (3) for sealing the compressed air, and at least one of the components mechanically connected respectively with the bearing plate (5)and the corresponding mechanical connection, at least partially has a hydraulic and/or electrical connecting elements (10) for connections are located on the carrier plate (5) components by means embedded in the carrier plate (5) transactions, wherein is provided an oil filter and/or thin oil purifier, separately embedded in the carrier plate (5) and through the bearing plate (5) hydraulically connected at least with one component and that the carrier plate (5) has a connecting element, at least one reservoir (7) a supply of oil and/or reservoir of the oil filter of rough clearing.

2. The device according to claim 1, characterized in that components(1) are located on the side of the carrier plate (5).

3. The device according to claim 1, characterized in that the components of the device (1) distributed on both sides of the carrier plate (5).

4. The device according to claim 1, characterized in that the carrier plate (5) is made rectangular and the drive mechanism (2) has a separate drive carrier plate (6)and bearing plate (5) and drive the bearing plate (6) is made with the possibility of AC connect to each other on respective side surfaces by means of respective mounting holes (8).

5. Device according to any one of claims 1 to 4, characterized in that is provided by the adjusting device, the oil temperature, which is separately embedded in the drive carrier plate (6) or placed on a horizontal/vertical surface of the drive carrier plate (6), and through the bearing plate (5), hydraulically and/or electrically connected, at least one of the components.

6. Device according to any one of claims 1 to 4, characterized in that the provided electronic device that is embedded in the carrier plate (5) or located separately on the carrier plate (5), and at least the electrical connections are embedded in the carrier plate (5) and/or are located above the carrier plate (5).

7. Device according to any one of claims 1 to 4, characterized in that the integrated heat exchanger (9), which is mechanically possible to the connector mounted on the carrier plate (5) and/or the reverse side of the drive mechanism (2).

8. The device according to claim 7, characterized in that the carrier plate (5) has the ribbing, through which the heat transfer.

9. The device according to claim 1, characterized in that the carrier plate (5) in place of the mechanical connection of the compressor (3) forms at least one fragment of the compressor housing (3).

10. The device according to claim 1, characterized in that the carrier plate (5) has a connecting means for receiving air dryers or part of the dryer or she is embedded.

11. The device according to claim 1, characterized in that the carrier plate (5) are the valves, and the valves include at least one minimum pressure valve for circulating lubricating/cooling medium and/or at least one relief valve.

12. The device according to claim 1, characterized in that it has a housing that encloses all located on the carrier plate (5) components.

13. The device according to claim 1, characterized in that the electrical device is embedded in the carrier plate (5).



 

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1 dwg

FIELD: machine building.

SUBSTANCE: system for withdrawal of gas consists of compressor unit equipped with piston compressor, control block and drive of piston compressor coupled in various combinations with cut off section of gas line and operating gas line by means of gas supplying pipelines, of additional block for control of compressor unit operation modes and for control of various aggregates, notably, three-position valve, relief valves, additional source of low pressure compressed gas, source of inert gas, gas analyser, shut-off through valves and cut off valves, and converters of parameters of unit operation. The procedures of gas withdrawal consist in connecting the cut off section of gas line with the operating gas line and in pressurising gas from the cut off section of the gas line either directly via the piston compressor or connecting the additional source of compressed gas of low pressure with the operating gas line. Characteristics of compressor unit operation are preliminary calculated, and values of operation parameters and parameters of control over operation modes for gas withdrawal are specified. Parameters of control of the compressor unit are set. The working parametres are continuously recorded and controlled; at their change mode of compressor unit operation is controlled by specified algorithm. Prior to supply of gas into the operating gas line gas is cooled and condensed moisture is removed. Upon completion of gas withdrawal into the operating gas line from aggregates and pipelines of the system all left there gas is extracted; the compressor unit is used for pneumatic tests with air for pressure tightness of the cut off section of the pipeline.

EFFECT: raised efficiency of system for extracting gas from cut off section of pipeline into operating gas line.

18 cl, 4 dwg

FIELD: oil-and-gas production.

SUBSTANCE: for implementation of method of gas pumping from disconnected section of gas line (3) is fed into nozzle of one or group of ejectors (9) and it is implemented exhaust of gas. During pressured decrease at pumped section it is installed additional boosting device (21) and it is implemented pumping process. Additionally in the capacity of working body it is used natural gas, and in the capacity of energy it is used potential energy of difference of gas before closed crane (4) of disconnected section (3) and gas pressure in low-head chamber of ejector (9). If required rate of pumping is not achieved, into work it is introduced first stage compressor (17).

EFFECT: implementation of total pumping of gas from disconnected section of gas line into working per minimal able by technological conditions time period without essential of structure and at keeping of its maximal able capacity.

8 cl, 1 dwg

FIELD: machine building.

SUBSTANCE: proposed device is to be utilised for equipment of air delivery systems as part of pneumatic brakes of trucks and other vehicles. The air delivery system is equipped with a compressor having a compression chamber. an inlet hole for delivery of air into the compression chamber and an outlet hole for discharge of air into the compression chamber. The discharge unit provides for the compressor remaining non-loaded while the required air pressure level is maintained in the system. The stopper valve prevents delivery of air supplied to the compressor inlet hole while the compressor remains in the non-loaded state. Compressed air source delivers compressed air to the compressor inlet hole at least while the stopper valve prevents delivery of air supplied to the compressor inlet hole.

EFFECT: design of an air delivery system supporting prevention of delivery of air supplied to the compressor inlet hole.

22 cl, 2 dwg

Compressor plant // 2343313

FIELD: engineering industry.

SUBSTANCE: invention refers to engineering industry. Compressor plant consists of at least one multi-stage piston-type compressor, suction and discharge pipelines, and vertically located intercoolers and aftercoolers. Plant is equipped with at least one damping device which connects two coolers to each other by means of connecting elements. One end of connecting element is attached to the part of damping device, and the other end - to upper part of cooler's casing, which includes the area of connection of discharge pipeline inlet end to the cooler. All coolers of the plant are connected to each other with damping devices and connecting elements and combined in a unique damping system. Connecting elements are made in the form of brackets located horizontally. Connecting elements are attached to coolers' casings by means of clamps equipped with threaded rods. Damping device can be made in the form of viscous-elastic damper. Damping device can be made in the form of dry-friction damper.

EFFECT: reducing the probability of occurrence of acoustic and mechanical resonances.

6 cl, 2 dwg

Compressor plant // 2343313

FIELD: engineering industry.

SUBSTANCE: invention refers to engineering industry. Compressor plant consists of at least one multi-stage piston-type compressor, suction and discharge pipelines, and vertically located intercoolers and aftercoolers. Plant is equipped with at least one damping device which connects two coolers to each other by means of connecting elements. One end of connecting element is attached to the part of damping device, and the other end - to upper part of cooler's casing, which includes the area of connection of discharge pipeline inlet end to the cooler. All coolers of the plant are connected to each other with damping devices and connecting elements and combined in a unique damping system. Connecting elements are made in the form of brackets located horizontally. Connecting elements are attached to coolers' casings by means of clamps equipped with threaded rods. Damping device can be made in the form of viscous-elastic damper. Damping device can be made in the form of dry-friction damper.

EFFECT: reducing the probability of occurrence of acoustic and mechanical resonances.

6 cl, 2 dwg

FIELD: engines and pumps.

SUBSTANCE: in compliance with the proposed method, gas pressure in the compressor is increased to the level exceeding that in the operated gas main section, then the compressed gas pressure is reduced to that in the said operated gas main section. The compressor plant to pump out gas from the shut-off section into the operated gas main section incorporates the compressor with its inlet connected to the shut-off section outlet and a gas pressure reducing device with its inlet connected to the compressor outlet and its outlet connected to the operated gas main section outlet.

EFFECT: pumping out natural gas from the shut-off section into the operated gas main section without thermal destruction of the gas main antirust coating.

11 cl, 1 dwg

FIELD: transportation, process engineering.

SUBSTANCE: invention relates to pneumatics, in particular, to system of compressed air preparation incorporated with the vehicles and stationary installations. The method to control regeneration in the device producing compressed dried and purified air consists in simultaneous opening the regeneration valve and condensate discharge valve in every change of adsorption and desorption cycles in vessels. On expiration of time sufficient for filter and moisture separator purging, the condensate discharge valves get closed with the regeneration valve open for a time sufficient for desorption.

EFFECT: smaller regeneration valve nominal through diameter and smaller valve sizes.

4 dwg

FIELD: mechanic engineering.

SUBSTANCE: plant is designed to be used in compressor manufacture industry. It includes leak tight displacement compressor enclosed into one body together with drive motor, receiver with hole closed by sealed lid to install and service compressor, oil separator, pressure gauges, safety valve, filling nozzles, air filters and gearbox.

EFFECT: reduction of sizes and weight; protection of main units and components from mechanical effects; improvement of storage and transportation conditions; improvement of unit stability during operation.

3 dwg

FIELD: transportation of natural gas.

SUBSTANCE: invention employs gas pumping out method at which gas pressure is reduced delivery to compressor installed between disconnected and acting sections of gas mains.

EFFECT: provision of recycling of natural gas from disconnected gas mains section at repairs and maintenance works using mobile compressor plant of reduced mass and overall dimensions.

10 cl, 3 dwg

FIELD: compressor manufacture.

SUBSTANCE: multistage gas compressor 1 includes low-pressure zone 7 and high-pressure zone 4. High pressure zone 4 includes at least one piston compressor 3 driven through crankshaft 5. Low-pressure zone 7 includes as low-pressure compressor 6 at least one screw compressor 20 with rotating displacing unit joined with crankshaft 5 of piston compressor 3. Cooling device and condensate separator are arranged between piston compressor and screw compressor.

EFFECT: improved design.

13 cl, 4 dwg

Compressor casing // 2365833

FIELD: instrument engineering.

SUBSTANCE: compressor casing with one upper and one lower cup jointed thus encircling the casing. At least one cup projects from the casing centre outside of and upward of the joint line.

EFFECT: application of the given invention provides uniform and effective cooling of the compressor.

10 cl, 4 dwg

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