Starting gas supply device for gas generator set

Abstract

The utility model relates to the technical field of gas generators, in particular to a gas generator set starting gas supply device, which is characterized in that a diaphragm is adsorbed with a switch plectrum through a connecting structure in the process of pressing the switch plectrum under the change of air pressure so as to ensure that the gas supply amount is sufficient at a time; the air pressure in the cavity between the cover plate and the diaphragm is reduced at a constant speed through the buffer device, the springback speed of the diaphragm is controlled, the single-time air supply amount is adjusted according to requirements, air is added into the cavity between the diaphragm and the cover plate through the driving device to increase the air pressure, the diaphragm extrudes the switch shifting piece, and the switch shifting piece can be automatically and slowly recovered to the original position. It is guaranteed that the single-time pressurization amount is within the needed range, and the practicability of the device is improved; comprising a gas pressure reducing valve shell, a gas outlet, a gas inlet, a one-way valve, a switch shifting piece, a diaphragm and a cover plate. The diaphragm switch further comprises a connecting structure, a buffer device and a driving device, the connecting structure is installed on the diaphragm and the switch shifting piece, the buffer device is installed on the cover plate, and the driving device is connected with the cover plate.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of gas generator, in particular to a kind of gas generator set starting air supplement device. BACKGROUND

[0002] Gas generator set is the new type of generator set developed to adapt to the world environmental protection requirements and market new environment.Natural gas generator set is mainly divided into two kinds, one is combined cycle gas turbine, one is gas internal combustion engine;Gas turbine power is relatively large, mainly used in large and medium-sized power station, gas internal combustion engine power is relatively small, mainly used in small distributed power station;It is new type of green power to replace fuel oil, coal-fired unit;Gas generator makes full use of various natural gas or harmful gas as fuel, waste into treasure, operation is safe and convenient, cost-effective, low emission pollution, and suitable for heat and power cogeneration and other advantages, market prospect is very broad.

[0003] The prior art patent with the application number CN202321318551.3 of Chinese utility model relates to gas generator starting air supplement device, gas engine and gas generator, including air inlet, gas pressure reducing valve, check valve, air outlet, diaphragm, moving part, cover plate and air supplement piece, etc., can solve the problem that gas generator low temperature or hand-pulling starting experience is poor, gas pressure reducing valve shell is provided with air outlet and air inlet, check valve is installed in gas pressure reducing valve shell, switch tab is installed on check valve, the input end of check valve is connected with air inlet, diaphragm is located between cover plate and gas pressure reducing valve shell, cover plate, diaphragm and gas pressure reducing valve shell are fixed by bolt connection.

[0004] But the above-mentioned device in actual use air supplement piece single time gas sending if not keep pressing, will lead to diaphragm fast homing, thereby single time gas supply shortage can appear. Utility model content

[0005] To solve the above technical problems, the utility model provides a kind of diaphragm by connecting structure is adsorbed with switch tab in the process of being pressed by gas pressure change switch tab, to make switch tab slowly homing, to ensure single time sufficient air supplement amount, through buffer device, the gas pressure in the chamber between cover plate and diaphragm reduces at uniform speed, and air release speed can be adjusted, the rebound speed of diaphragm is adjusted according to the demand to adjust single time air supplement amount, by driving device, the chamber between diaphragm and cover plate is filled with gas to increase gas pressure, and diaphragm is extruded switch tab, and can automatically slowly recover to original position, ensure single time pressurization amount in required range, improve the practicality of device, a kind of gas generator set starting air supplement device.

[0006] The utility model discloses a kind of gas generator set starting air supplementing device, including gas pressure reducing valve shell, gas outlet, air inlet, check valve, switch paddle, diaphragm and cover plate, gas pressure reducing valve shell is provided with gas outlet and air inlet, check valve is installed in gas pressure reducing valve shell, switch paddle is installed on check valve, the input end of check valve is connected with air inlet, diaphragm is located between cover plate and gas pressure reducing valve shell, cover plate, diaphragm and gas pressure reducing valve shell are fixed by bolt connection;It further include connecting structure, buffer device and drive device, connecting structure is installed on diaphragm and switch paddle, buffer device is installed on cover plate, and drive device is connected with cover plate;Diaphragm is adsorbed with switch paddle in the process of being pressed switch paddle by connecting structure under gas pressure variation, to make switch paddle slowly homing, to ensure single sufficient air supplement, the gas pressure in chamber between cover plate and diaphragm is reduced at uniform speed by buffer device, and gas release speed can be adjusted, the rebound speed of diaphragm is adjusted single air supplement according to demand, diaphragm is extruded switch paddle by drive device to the chamber between diaphragm and cover plate with gas increase gas pressure, and can automatically slowly recover to original position, ensure that single pressurization is within required range, improve the practicability of device.

[0007] Preferably, the connecting structure includes a first magnet piece and a second magnet piece, the middle part of the switch paddle is provided with the first magnet piece, and the middle part of the diaphragm is provided with the second magnet piece; in the process that the drive device fills the chamber between the diaphragm and the cover plate with gas to drive the diaphragm to extrude the switch paddle, the first magnet piece is adsorbed with the second magnet piece, so as to drive the switch paddle to rebound at the homing speed of the diaphragm, prolong the opening time of the check valve, control the single air supplement, prevent the situation of insufficient single air supplement, and improve the practicability of the device.

[0008] Preferably, the buffer device includes a second check valve, an exhaust sleeve, a sealing bolt and exhaust fine holes, the front end surface of the cover plate is provided with the second check valve and the exhaust sleeve, the output end of the second check valve is communicated with the inside of the cover plate, the exhaust sleeve is communicated with the inside of the cover plate, the exhaust sleeve is provided with a threaded hole, the sealing bolt is connected with the exhaust sleeve through threads, and a plurality of groups of exhaust fine holes are uniformly arranged on the side surface of the exhaust sleeve; the drive device sends gas into the chamber between the cover plate and the diaphragm through the second check valve, increases the gas pressure in the chamber, so that the diaphragm is deformed to drive the switch paddle to open the check valve, the gas in the chamber between the cover plate and the diaphragm is slowly discharged through the plurality of groups of exhaust fine holes on the exhaust sleeve, so as to release the gas pressure in the chamber between the diaphragm and the cover plate, make the diaphragm slowly recover to the initial state, the number of exhaust fine holes on the exhaust sleeve is controlled by rotating the sealing bolt, so as to control the pressure relief rate of the diaphragm and the cover plate, and improve the practicability of the device.

[0009] Preferably, the driving device comprises a high-pressure air pipe, a piston cylinder, a piston pipe and a piston, the input end of the second one-way valve is connected with the high-pressure air pipe, the input end of the high-pressure air pipe is connected with the piston cylinder, the piston pipe is inserted into the piston cylinder and the piston is installed on one end of the piston cylinder; an operator holds the piston cylinder with one hand and pushes the piston pipe with the other hand, so that the piston pushes the gas in the piston cylinder to the chamber between the diaphragm and the cover plate through the high-pressure air pipe, thereby completing the gas feeding process of the chamber between the diaphragm and the cover plate and improving the practicability of the device.

[0010] Preferably, the device further comprises a spring, the spring is installed in the piston cylinder and located between the output end of the piston cylinder and the piston; the spring provides elastic force to the piston to assist the piston to complete the rebound work, so that the operator does not need to manually pull out the piston pipe outward, thereby improving the practicability of the device.

[0011] Preferably, the device further comprises an air inlet hole, the output end side of the piston cylinder is provided with the air inlet hole; the chamber between the output end of the piston cylinder and the piston and the outside of the piston cylinder can communicate with each other through the air inlet hole, so that the outside air is slowly fed into the piston cylinder through the air inlet hole after the pushing of the piston pipe is completed, thereby reducing the resistance of the spring rebound process caused by the pressure difference between the inside and outside of the piston cylinder and improving the practicability of the device.

[0012] Preferably, the device further comprises a sealing groove and a sealing rubber ring, a group of sealing grooves are respectively arranged on the front and rear end faces of the frame of the diaphragm, a group of sealing grooves are respectively arranged on the rear end face of the frame of the cover plate and the front end face of the frame of the gas pressure reducing valve shell, and the sealing rubber rings are placed in the sealing grooves; the sealing grooves and the sealing rubber rings increase the sealing performance of the front and rear chambers of the diaphragm, thereby improving the practicability of the device.

[0013] Compared with the prior art, the device has the beneficial effects that: the diaphragm is adsorbed with the switch plunger in the process of being pressed by the change of the gas pressure, so that the switch plunger slowly returns to the original position, thereby ensuring the sufficient single gas supplement amount; the buffer device makes the gas pressure in the chamber between the cover plate and the diaphragm decrease uniformly and can adjust the gas release speed; the driving device increases the gas pressure in the chamber between the diaphragm and the cover plate to make the diaphragm press the switch plunger and automatically and slowly recover to the original position, thereby ensuring that the single pressure increasing amount is within the required range and improving the practicability of the device. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 is the axonometric structure schematic diagram of the device;

[0015] Figure 2 is the explosion structure schematic diagram of the device;

[0016] Figure 3 is the cross-sectional structure schematic diagram of the device;

[0017] Figure 4 is the first local enlarged structure schematic view of the utility model;

[0018] Figure 5 is the second local enlarged structure schematic view of the utility model;

[0019] Marked in the drawing: 1, gas pressure reducing valve shell; 2, gas outlet; 3, gas inlet; 4, check valve; 5, switch paddle; 6, diaphragm; 7, cover plate; 8, first magnet piece; 9, second magnet piece; 10, second check valve; 11, exhaust sleeve; 12, sealing bolt; 13, exhaust fine hole; 14, high-pressure gas pipe; 15, piston cylinder; 16, piston pipe; 17, piston; 18, spring; 19, gas inlet fine hole; 20, sealing groove; 21, sealing rubber ring. DETAILED DESCRIPTION

[0020] In order to facilitate understanding of the utility model, the utility model will be described more fully below with reference to the relevant drawings. The utility model can be realized in many different forms, and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive. EMBODIMENT

[0021] As Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The connecting structure shown in the drawings is installed on the diaphragm 6 and the switch paddle 5, the buffer device is installed on the cover plate 7, and the driving device is connected with the cover plate 7.

[0022] First, the operator holds the piston cylinder 15 with one hand, and pushes the piston pipe 16 with the other hand, so that the piston 17 pushes the gas in the piston cylinder 15 to the chamber between the diaphragm 6 and the cover plate 7 from the high-pressure gas pipe 14, thereby pushing the diaphragm 6 to the switch paddle 5 to open the check valve 4, and then the exhaust fine hole 13 on the exhaust sleeve 11 exhausts the high-pressure gas in the front chamber of the diaphragm 6, the diaphragm 6 cooperates with the first magnet piece 8 and the second magnet piece 9 to drive the switch paddle 5 to slowly return to the original position, and the position of the sealing bolt 12 in the exhaust sleeve 11 is adjusted according to the demand of single gas filling amount, and the piston pipe 16 is pushed by the spring 18 to slowly recover to the original position.

[0023] The connecting structure includes the first magnet piece 8 and the second magnet piece 9, the middle part of the switch paddle 5 is provided with the first magnet piece 8, and the middle part of the diaphragm 6 is provided with the second magnet piece 9.

[0024] The buffer device comprises a second one-way valve 10, an exhaust sleeve 11, a sealing bolt 12 and exhaust holes 13. The second one-way valve 10 and the exhaust sleeve 11 are arranged on the front end face of the cover plate 7. The output end of the second one-way valve 10 is in communication with the inside of the cover plate 7. The exhaust sleeve 11 is in communication with the inside of the cover plate 7. The exhaust sleeve 11 is provided with a threaded hole. The sealing bolt 12 is connected with the exhaust sleeve 11 through the thread. The exhaust sleeve 11 is uniformly provided with a plurality of groups of exhaust holes 13 on the side face.

[0025] The driving device comprises a high-pressure gas pipe 14, a piston cylinder 15, a piston pipe 16 and a piston 17. The input end of the second one-way valve 10 is connected with the high-pressure gas pipe 14. The input end of the high-pressure gas pipe 14 is connected with the piston cylinder 15. The piston pipe 16 is inserted into the inside of the piston cylinder 15 and is provided with the piston 17 on one end inside the piston cylinder 15.

[0026] The spring 18 is further arranged in the piston cylinder 15 and is located between the output end of the piston cylinder 15 and the piston 17.

[0027] The intake hole 19 is further arranged on the side of the output end of the piston cylinder 15.

[0028] The sealing groove 20 and the sealing rubber ring 21 are further arranged. A group of sealing grooves 20 are arranged on the front and rear end faces of the frame of the diaphragm 6. A group of sealing grooves 20 are arranged on the rear end face of the frame of the cover plate 7 and the front end face of the frame of the gas pressure reducing valve shell 1. The sealing rubber ring 21 is arranged in the sealing groove 20.

[0029] The diaphragm 6 is adsorbed with the switch paddle 5 in the process of being pressed by the switch paddle 5 due to the change of the gas pressure, so that the switch paddle 5 slowly returns to the original position, so as to ensure the sufficient single gas supplement. The gas pressure in the chamber between the cover plate 7 and the diaphragm 6 is uniformly reduced by the buffer device, and the gas release speed can be adjusted. The rebound speed of the diaphragm 6 is adjusted according to the requirement, so as to adjust the single gas supplement. The diaphragm 6 is pressed by the switch paddle 5 by the driving device, and can automatically and slowly return to the original position, so as to ensure that the single pressure increasing amount is within the required range, and the practicability of the device is improved.

[0030] As Figures 1 to 5As shown, the gas generator set starting air supplement device, in working, first, the operator holds the piston cylinder 15 with one hand, pushes the piston pipe 16 with the other hand, and makes the piston 17 push the gas in the piston cylinder 15 to the chamber between the diaphragm 6 and the cover plate 7 from the high-pressure gas pipe 14, so as to push the diaphragm 6 and press the switch tab 5 to make the switch tab 5 open the one-way valve 4, then, along with the exhaust sleeve 11, the exhaust fine hole 13 discharges the high-pressure gas in the front chamber of the diaphragm 6, the diaphragm 6 cooperates with the first magnet piece 8 and the second magnet piece 9 to drive the switch tab 5 to slowly return to the original position, the position of the sealing bolt 12 in the exhaust sleeve 11 is adjusted according to the requirement of single air charging amount, and the spring 18 pushes the piston pipe 16 to slowly recover to the original position.

[0031] The second one-way valve 10 of the gas generator set starting air supplement device is purchased on the market, and the technical personnel in the industry only needs to install and operate according to the attached instruction manual, without the creative labor of the technical personnel in the field.

[0032] The above is only the preferred embodiment of the utility model, and it should be pointed out that, for ordinary technical personnel in the technical field, without departing from the technical principle of the utility model, a number of improvements and modifications can be made, and these improvements and modifications should be regarded as the protection range of the utility model.

Claims

1. A gas generator set starting and gas supply device, comprising a gas pressure reducing valve housing (1), an outlet (2), an inlet (3), a one-way valve (4), a switch (5), a diaphragm (6), and a cover plate (7), wherein the gas pressure reducing valve housing (1) is provided with an outlet (2) and an inlet (3), a one-way valve (4) is installed inside the gas pressure reducing valve housing (1), a switch (5) is installed on the one-way valve (4), the input end of the one-way valve (4) is connected to the inlet (3), the diaphragm (6) is located between the cover plate (7) and the gas pressure reducing valve housing (1), and the cover plate (7), the diaphragm (6), and the gas pressure reducing valve housing (1) are fixedly connected by bolts; characterized in that, It also includes a connecting structure, a buffer device and a driving device. The connecting structure is installed on the diaphragm (6) and the switch lever (5), the buffer device is installed on the cover plate (7), and the driving device is connected to the cover plate (7).

2. The gas generator set start-up gas supply device as described in claim 1, characterized in that, The connection structure includes a first magnet (8) and a second magnet (9). The first magnet (8) is installed in the middle of the switch (5), and the second magnet (9) is installed in the middle of the diaphragm (6).

3. The gas generator set start-up gas supply device as described in claim 2, characterized in that, The buffer device includes a second one-way valve (10), an exhaust sleeve (11), a sealing bolt (12), and an exhaust orifice (13). The second one-way valve (10) and the exhaust sleeve (11) are installed on the front end face of the cover plate (7). The output end of the second one-way valve (10) is connected to the inside of the cover plate (7). The exhaust sleeve (11) is connected to the inside of the cover plate (7). The exhaust sleeve (11) is provided with a threaded hole. The sealing bolt (12) is connected to the exhaust sleeve (11) through its own thread. Multiple sets of exhaust orifices (13) are evenly provided on the side of the exhaust sleeve (11).

4. A gas generator set start-up gas supply device as described in claim 3, characterized in that, The drive unit includes a high-pressure air pipe (14), a piston cylinder (15), a piston tube (16), and a piston (17). The high-pressure air pipe (14) is connected to the input end of the second one-way valve (10). The piston cylinder (15) is connected to the input end of the high-pressure air pipe (14). The piston tube (16) is inserted into the piston cylinder (15), and the piston (17) is installed at one end inside the piston cylinder (15).

5. A gas generator set start-up gas supply device as described in claim 4, characterized in that, It also includes a spring (18), which is installed inside the piston cylinder (15) and is located between the output end of the piston cylinder (15) and the piston (17).

6. A gas generator set start-up gas supply device as described in claim 5, characterized in that, It also includes an air inlet hole (19), and the piston cylinder (15) has an air inlet hole (19) on the side of the output end.

7. A gas generator set start-up gas supply device as described in claim 6, characterized in that, It also includes a sealing groove (20) and a sealing ring (21). A set of sealing grooves (20) are provided on the front and rear ends of the frame of the diaphragm (6), and a set of sealing grooves (20) are provided on the rear end of the frame of the cover plate (7) and the front end of the frame of the gas pressure reducing valve housing (1). A sealing ring (21) is placed in the sealing groove (20).

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