CN210716150U

CN210716150U - Novel pressure reducer

Info

Publication number: CN210716150U
Application number: CN201920920535.9U
Authority: CN
Inventors: 陈烨栩; 陈光海; 周彩霞
Original assignee: Zhuji Shangzheng Machinery Co Ltd
Current assignee: Zhuji Shangzheng Machinery Co Ltd
Priority date: 2019-06-19
Filing date: 2019-06-19
Publication date: 2020-06-09
Anticipated expiration: 2029-06-19

Abstract

The utility model discloses a novel pressure reducer, including the relief pressure valve body, first decompression chamber has been seted up to the inside of the left part of relief pressure valve body, the air inlet has been seted up to the upside left end of relief pressure valve body, and the lower extreme and the first decompression chamber of air inlet are linked together, the upper end of air inlet is connected with the filter tube, install the solenoid valve on the air inlet, the inside at the middle part of relief pressure valve body is provided with the breather pipe, the inside at the right part of relief pressure valve body is provided with second decompression chamber, the gas outlet has been seted up at the middle part on the right side surface in second decompression chamber, the middle part on the right side surface in second decompression chamber is fixed with solid. The utility model discloses be connected with the filter tube in air inlet department, the internally mounted of filter tube has first filter screen and second filter screen, can effectually filter the gas that gets into in the relief pressure valve, can effectually filter the rust bits in the gas, avoids causing the damage to the relief pressure valve in the rust bits entering relief pressure valve, has protected the relief pressure valve.

Description

Novel pressure reducer

Technical Field

The utility model relates to a pressure reducer technical field specifically is a novel pressure reducer.

Background

The natural gas is used for the fuel of vehicle engine can reduce vehicle exhaust pollution greatly, and the pressure reducer is one of the important spare parts of natural gas engine gas system, and the accurate control of engine fuel is directly influenced to the good or bad direct influence of pressure reducer performance, to the pressure reducer that the timing is suitable, often can provide the highest output performance ratio of engine to reach more energy-concerving and environment-protective effect.

Have in the current automobile pressure reducer to carry out filterable device to gas, after natural gas line used for a long time in the car, the natural gas washed the pipeline and produces rust bits easily, led to the fact the damage to the pressure reducer easily in getting into the pressure reducer, influenced the performance of pressure reducer.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a novel pressure reducer to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a novel pressure reducer, includes the relief pressure valve body, first decompression chamber has been seted up to the inside of the left part of relief pressure valve body, the air inlet has been seted up to the upside left end of relief pressure valve body, and the lower extreme and the first decompression chamber of air inlet are linked together, the upper end of air inlet is connected with the filter tube, install the solenoid valve on the air inlet, the inside at the middle part of relief pressure valve body is provided with the breather pipe, the inside at the right part of relief pressure valve body is provided with second decompression chamber, the gas outlet has been seted up at the middle part on the right side surface in second decompression chamber, the middle part on the right side surface in second decompression.

Preferably, the upper end of filter tube is provided with the connector, the lower extreme of filter tube is provided with down the connector, through screw thread sealing connection between the upper end of connector and air inlet down, and the junction of connector and air inlet is provided with the sealing washer down, the internally mounted of filter tube has first filter screen.

Preferably, the second decompression chamber is connected with the first decompression chamber through a vent pipe, and the top of the second decompression chamber and the top of the first decompression chamber are both provided with detectors.

Preferably, solid fixed ring's inner ring diameter is greater than the cross-section circle diameter of gas outlet, solid fixed ring's left end is connected with the spring, the one end that solid fixed ring was kept away from to the spring is connected with the diaphragm, the diaphragm contacts with the right-hand member port of breather pipe, the diaphragm sets up to circular, and the diameter of diaphragm is greater than the diameter of the right-hand member port of breather pipe, the one side that the diaphragm is close to the right-hand member port of breather pipe is fixed with sealed the pad.

Preferably, the inside of the below filter tube of first filter screen is provided with the second filter screen, second filter screen and first filter screen all set up to the stainless steel filter screen, the filtration pore diameter of second filter screen is less than the filtration pore diameter of first filter screen.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses be connected with the filter tube in air inlet department, the internally mounted of filter tube has first filter screen and second filter screen, and the filtration pore diameter of second filter screen is less than the filtration pore diameter of first filter screen, can effectually filter the gas that gets into in the relief pressure valve, can effectually filter the rust cleaning in the gas, avoids the rust cleaning to get into in the relief pressure valve and causes the damage to the relief pressure valve, has protected the relief pressure valve;

2. the filtering pipe of the utility model is connected with the air inlet through the thread seal, which is convenient for the installation and the disassembly of the filtering pipe, and the filtering pipe is convenient to be periodically disassembled for cleaning, thereby effectively improving the filtering effect of the filtering pipe;

3. the utility model discloses be provided with spring and diaphragm in the second decompression chamber, and the diaphragm contacts with the right-hand member port of breather pipe, after the car is flame-out, the internal gas pressure of first decompression chamber reduces, reduces the pressure of diaphragm, and the spring pushes down the diaphragm and covers the right-hand member port of breather pipe, avoids the natural gas of first decompression intracavity to continue to get into the second decompression intracavity, and the effectual consumption that reduces the natural gas has practiced thrift the energy.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic view of the cross-sectional structure of the filtering pipe of the present invention.

In the figure: 1. relief pressure valve body, 2, first decompression chamber, 3, air inlet, 4, solenoid valve, 5, filter tube, 6, detector, 7, second decompression chamber, 8, breather pipe, 9, gas outlet, 10, solid fixed ring, 11, spring, 12, diaphragm, 13, sealed pad, 14, go up the connector, 15, lower connector, 16, first filter screen, 17, second filter screen.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-2, the present invention provides an embodiment: a novel pressure reducer comprises a pressure reducing valve body 1, a first pressure reducing cavity 2 is arranged inside the left part of the pressure reducing valve body 1, an air inlet 3 is arranged at the left end of the upper side of the pressure reducing valve body 1, the lower end of the air inlet 3 is communicated with the first pressure reducing cavity 2, a filter pipe 5 is connected to the upper end of the air inlet 3, an upper connector 14 is arranged at the upper end of the filter pipe 5, a lower connector 15 is arranged at the lower end of the filter pipe 5, the lower connector 15 is connected with the upper end of the air inlet 3 in a threaded sealing manner, the filter pipe 5 is convenient to install and disassemble, the filter pipe 5 is convenient to periodically disassemble and clean, the filtering effect of the filter pipe 5 is effectively improved, a sealing ring is arranged at the joint of the lower connector 15 and the air inlet 3, the filter pipe 5 is tightly connected with the air inlet 3, the sealing performance is improved, the inside of the filter pipe 5 below the first filter screen 16 is provided with a second filter screen 17, the second filter screen 17 and the first filter screen 16 are both stainless steel filter screens, the diameter of the filter hole of the second filter screen 17 is smaller than that of the filter hole of the first filter screen 16, so that the gas entering the pressure reducing valve can be effectively filtered, rust in the gas can be effectively filtered, the rust is prevented from entering the pressure reducing valve and damaging the pressure reducing valve, the pressure reducing valve is protected, the air inlet 3 is provided with the electromagnetic valve 4, the middle part of the pressure reducing valve body 1 is internally provided with the vent pipe 8, the right part of the pressure reducing valve body 1 is internally provided with the second pressure reducing cavity 7, the second pressure reducing cavity 7 is connected with the first pressure reducing cavity 2 through the vent pipe 8, the tops of the second pressure reducing cavity 7 and the first pressure reducing cavity 2 are both provided with the detector 6, so as to conveniently detect the air pressures in the second pressure reducing, the middle part of the right side surface of the second decompression cavity 7 is provided with an air outlet 9, the middle part of the right side surface of the second decompression cavity 7 is fixed with a fixing ring 10, the inner ring diameter of the fixing ring 10 is larger than the diameter of the section circle of the air outlet 9, the left end of the fixing ring 10 is connected with a spring 11, one end of the spring 11 far away from the fixing ring 10 is connected with a diaphragm 12, the diaphragm 12 is in contact with the right end port of the vent pipe 8, the diaphragm 12 is circular, the diameter of the diaphragm 12 is larger than the diameter of the right end port of the vent pipe 8, one surface of the diaphragm 12 close to the right end port of the vent pipe 8 is fixed with a sealing gasket 13, after the automobile is flamed out, the air pressure in the first decompression cavity 2 is reduced, the pressure on the diaphragm 12 is reduced, the spring 11 presses the diaphragm 12 to cover the right end port of the, the energy is saved.

The working principle is as follows: when the utility model is used, the utility model needs to be understood by a simple structure, the lower end of the filter tube 5 is connected with the air inlet 3 of the pressure reducing valve body 1 by screw thread, when natural gas enters the pressure reducing valve body 1 through the filter tube 5, rust in the natural gas in the first filter screen 16 and the second filter screen 17 in the filter tube 5 is filtered, the rust is prevented from entering the pressure reducing valve to damage the pressure reducing valve, the natural gas enters the first pressure reducing cavity 2, the air pressure in the first pressure reducing cavity 2 is increased, the natural gas enters the vent pipe 8 to extrude the diaphragm 12, the spring 11 is contracted to drive the diaphragm 12 to separate from the right end port of the vent pipe 8, the natural gas enters the second pressure reducing cavity 7, after the automobile is flameout, the air pressure in the first pressure reducing cavity 2 is reduced, the pressure on the diaphragm 12 is reduced, the spring 11 is contracted to extrude the diaphragm 12, so that the diaphragm 12 covers the vent pipe on the right end, the natural gas in the first decompression cavity 2 is prevented from continuously entering the second decompression cavity 7, the consumption of the natural gas is effectively reduced, and the energy is saved.

The above description is only an example of the present invention, and the common general knowledge of the known specific structures and characteristics of the embodiments is not described herein. It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. A novel pressure reducer comprises a pressure reducing valve body (1), and is characterized in that: first decompression chamber (2) have been seted up to the inside of the left part of relief pressure valve body (1), air inlet (3) have been seted up to the upside left end of relief pressure valve body (1), and the lower extreme and first decompression chamber (2) of air inlet (3) are linked together, the upper end of air inlet (3) is connected with filter tube (5), install solenoid valve (4) on air inlet (3), the inside at the middle part of relief pressure valve body (1) is provided with breather pipe (8), the inside at the right part of relief pressure valve body (1) is provided with second decompression chamber (7), gas outlet (9) have been seted up at the middle part on the right side surface of second decompression chamber (7), the middle part on the right side surface of second decompression chamber (7) is fixed with solid fixed ring (10).

2. A new type of pressure reducer as claimed in claim 1, wherein: the upper end of filter tube (5) is provided with connector (14), the lower extreme of filter tube (5) is provided with down connector (15), through thread sealing connection between the upper end of connector (15) and air inlet (3) down, and the junction of connector (15) and air inlet (3) is provided with the sealing washer down, the internally mounted of filter tube (5) has first filter screen (16).

3. A new type of pressure reducer as claimed in claim 1, wherein: the second decompression chamber (7) is connected with the first decompression chamber (2) through a vent pipe (8), and the top of the second decompression chamber (7) and the top of the first decompression chamber (2) are both provided with a detector (6).

4. A new type of pressure reducer as claimed in claim 1, wherein: the inner ring diameter of solid fixed ring (10) is greater than the cross-section circle diameter of gas outlet (9), the left end of solid fixed ring (10) is connected with spring (11), the one end that solid fixed ring (10) was kept away from in spring (11) is connected with diaphragm (12), diaphragm (12) contact with the right-hand member port of breather pipe (8), diaphragm (12) set up to circular, and the diameter of diaphragm (12) is greater than the diameter of the right-hand member port of breather pipe (8), the one side that diaphragm (12) are close to the right-hand member port of breather pipe (8) is fixed with sealed pad (13).

5. A new type of pressure reducer as claimed in claim 2, wherein: the inside of the below filter tube (5) of first filter screen (16) is provided with second filter screen (17), second filter screen (17) and first filter screen (16) all set up to the stainless steel filter screen, the filtration pore diameter of second filter screen (17) is less than the filtration pore diameter of first filter screen (16).