Pressure regulator

FIELD: machine building.

SUBSTANCE: pressure regulator comprises a casing with inlet and outlet holes and a flange connected to the casing by screws. A membrane dividing the pressure regulator cavity into fuel and air chambers is fixed in the junction place. The pressure regulator also comprises a lower plunger and an upper plunger coupled with the membrane, a spring with a threaded cup to adjust the action force of the lower plunger on the inlet hole seat. The casing is fitted by vertical inlet and outlet holes connecting the inlet and outlet holes to the fuel chamber and to the pressure measuring sensors and fuel temperature measuring sensors. For the purpose of adjusting the conjugation of the seat and the lower membrane's plunger, the seat inlet hole and the mating supporting part of the lower plunger are of conical shape, the side casing surfaces are fitted by additional outlet holes to feed one or more units.

EFFECT: increased reliability and stability of pressure regulator work and expanded functionality.

2 dwg

 

The invention relates to devices for regulating the pressure of liquid and gas.

Known gas pressure regulator comprising a housing with inlet and outlet cavities, between which there is a saddle regulatory body, the valve which is installed in the output cavity and is connected through a rod with compensation membrane, located in the output cavity and forming with the housing a discharge chamber connected through a channel in the stem with the input cavity, and a valve associated with membrane servo drive containing the master device and the control cavity with the output shaft, the output shaft of the servo fitted with a protective membrane, forming with the housing podobrannyy cavity which communicates with the output cavity (RU, patent for invention №2062505, CL G05D 16/06, publ. 1996)

The disadvantages of gas pressure regulator are:

- the presence of two membranes reduces the reliability of the regulator and the stability of the position of the valve stem and the seat of the regulator;

- adjust valve position with a large console complicates the regulatory process and decreases the reliability of the controller.

Known gas pressure regulator comprising a housing, a cavity high pressure connected to the inlet channel, the internal cavity of low pressure that is connected with the outlet channel and forming a Central channel that regulates the throttle, �Adelaide cavity high and low pressure and formed a saddle and a shut-off valve, so low to the saddle elastic element, a damping chamber that is separate from the low pressure cavity wall of the housing with a connecting hole disposed coaxially with the Central channel and informing the cavity of the low-pressure damping chamber, the sensing element in the form embedded in the body of the membrane, forming another wall of the damping chamber and cooperating with the job item, a pusher that is axially movable in the housing and connecting the sensing element with a shut-off valve, and the plunger passes through the connecting hole with clearance and outlet channel communicates directly with a Central channel and at an angle thereto, as well as the inlet fitting and auxiliary channels in the housing, the input to the output channel directly adjacent to the entrance to the connecting port, and the controller parameters are related by √s=k3√v, where s is the minimum cross-sectional area of the gap between the follower and the connecting hole, v is the maximum volume of the damping chamber and k=0.01 to 0.50, the pusher in the area of the Central channel is formed with a plot decreases towards the locking body cross-section, starting at the connecting hole, the plunger is made with a conical section, the sensor membrane back�on a composite of at least two plates, between which is formed a sealed damping cavity (RU, patent for invention №2092889, CL G05D 16/06, publ. 1997).

The disadvantages of gas pressure regulator are:

- the presence of 3 channels and outlet of gas complicates the design of the regulator and reduces the reliability.

- there is no possibility of measuring the pressure and temperature in the inlet and outlet channels of the controller and, accordingly, the volume of gas supply;

- the inability to use the pressure regulator to power more than one object.

Known pressure regulator model EZR adopted as a prototype, comprising a housing with inlet and outlet openings and a flange connected to the housing by screws, to the junction of the fixed connection of the membrane separating the cavity of the regulator on the fuel and air chambers, the lower plunger and the upper plunger connected with the diaphragm, a spring with screw-regulation efforts impact the bottom of the plunger against the seat of the inlet.

(website: EZR pressure Regulator company EMERSON).

The disadvantages of this controller are:

- the inability to measure the pressure of fuel in the inlet and the outlet of the casing;

- the inability to use the pressure regulator to power more than one object;

- there is no option to set the position of the lower plunger �otnositelno membrane for closing the inlet;

- flat touch surface of the lower plunger and seat inlet reduces the smoothness, stability and reliability of the controller.

The technical result of the invention is to improve the reliability and stability of operation of the pressure regulator and the expansion of technology.

Said technical result is achieved in that the pressure regulator comprising a housing with inlet and outlet openings and a flange connected to the housing by screws, to the junction of the fixed connection of the membrane separating the cavity of the pressure regulator on the fuel and air chambers, the lower plunger and the upper plunger, sealed with a membrane, a spring with threaded glass to regulate the efforts impact the bottom of the plunger against the seat inlet; the case has a vertical inlet and outlet connecting the inlet and outlet to the fuel cell and the sensors measure the pressure and temperature sensors fuel, the saddle is fixed in a vertical inlet by means of a threaded connection with a compensating ring, for adjusting the seat mates with the lower plunger of the membrane, the inlet opening of the seat and corresponding to the support portion of the lower plunger is made of a conical shape, on the sides of the body is complete�outlet-date with ability to power more than one object, and the mating surfaces of the housing and the flange to secure the membrane is made with a circular radial pair.

Fig.1 is a perspective view of the pressure regulator of Fig.2 - section a-A in Fig.1.

The pressure regulator comprises a housing 1 (Fig.1) with an inlet 2 and outlet 3 holes and flange 4 connected to the housing 1 by screws 5, at the junction of the fixed connection of the membrane 6, which separates the cavity of the pressure regulator on fuel 7 and 8 air chamber, the lower plunger 9 and the upper plunger 10 is bonded to the membrane 6, the spring 11 with a threaded Cup 12 to regulate the efforts of the impact of the lower plunger 9 against the seat 13 of the inlet 2; the case has a vertical inlet 14 and outlet 15 holes connecting the inlet 2 and outlet 3 holes with fuel 7 camera and sensors 16 and pressure measurement sensors 17 measuring the temperature of the fuel, the seat 13 is fixed in a vertical inlet hole 14 by means of a threaded connection with a compensating ring 18, for controlling the coupling seat 13 with the lower plunger 9 of the membrane 6, the inlet opening of the seat 13 and corresponding to the support portion of the lower plunger 9 is made of a conical shape 19, on the side 20 (Fig.2) of the housing 1 is made of an additional outlet openings 21 with the ability to power more than one object, and the mating surfaces 22 to�a span of 1 and the flange 4 for fastening membrane 6 is formed with a circular radial coupling 23.

The pressure regulator operates as follows.

The pressure in the air chamber 8 is set by the pressure sensor 16 of the fuel in the outlet 3 and a vertical outlet pipe 15, if the fuel pressure exceeds a set value determined by the force of the spring 11, the membrane 6 raises the saddle 13, directing the fuel back into the fuel tank. This resulted sensors pressure measurement 16 and temperature 17 performs control and setup parameters of the pressure sensor, including the installation position of the seat 13 fit compensating ring 18, and the execution of the inlet seat 13 and corresponding support part of the lower plunger 9 cone 19 increase the accuracy of the fuel feeding operation of the pressure sensors. The implementation of the mating surfaces 22 of the housing 1 and the flange 4 for fastening membrane 6 with a circular radial coupling 23 increases the reliability and stability, and the presence of additional outlet openings 21 with the ability to power more than one object expand technical capabilities.

A pressure regulator comprising a housing with inlet and outlet openings and a flange connected to the housing by screws, to the junction of the fixed connection of the membrane separating the cavity of the pressure regulator on the fuel and air chambers, the lower plunger and the upper plunge�p, bonded with membrane spring with threaded glass to regulate the efforts impact the bottom of the plunger against the seat inlet, characterized in that the housing is made of a vertical inlet and outlet connecting the inlet and outlet to the fuel cell and the sensors measure the pressure and temperature sensors fuel, the saddle is fixed in a vertical inlet by means of a threaded connection with a compensating ring, for adjusting the seat mates with the lower plunger of the membrane, the inlet opening of the seat and corresponding to the support portion of the lower plunger is made of a conical shape, on the sides of the housing is provided with an additional outlet with the ability to power more than one object, and the mating surfaces of the housing and the flange to secure the membrane is made with a circular radial mate.



 

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