CN106931193B

CN106931193B - Gas management valve group

Info

Publication number: CN106931193B
Application number: CN201710332419.0A
Authority: CN
Inventors: 任海露; 林兵磊; 徐振宇
Original assignee: Individual
Current assignee: Lin Binglei
Priority date: 2017-05-12
Filing date: 2017-05-12
Publication date: 2023-03-24
Anticipated expiration: 2037-05-12
Also published as: CN106931193A

Abstract

The invention discloses a gas management valve group which is suitable for a Stirling engine and is provided with a gas inlet channel, a gas outlet channel and a gas exhaust channel. The gas inlet connector and the gas outlet connector are respectively communicated with an inlet channel and an outlet channel of the Stirling engine, and the gas inlet connector and the gas outlet connector are respectively communicated with a gas inlet channel and a gas outlet channel of the gas management valve group. The filter is mutually independently communicated with an air inlet channel, an air outlet channel and an exhaust channel of the gas management valve group, and the safety valve device, the one-way valve and the pressure release valve are respectively communicated with the exhaust channel of the gas management valve group. When the system pressure is higher than the set maximum pressure, the safety valve is controlled to be opened, and high-pressure gas is discharged through the silencer, so that the Stirling engine is forcibly stopped, and the Stirling engine is prevented from being further damaged.

Description

Gas management valve group

Technical Field

The invention belongs to the technical field of Stirling engines, and particularly relates to a gas management valve bank.

Background

The gas management valve group is widely applied to fluid control as a gas path management system. And the air path management control is realized by controlling the electrification or the outage of the electromagnetic coil. The gas management valve group is often applied to the Stirling engine, and the energy consumption of the Stirling engine is effectively reduced by controlling the gas medium of the Stirling engine.

Existing gas management valve blocks typically include a solenoid valve, a cartridge, a valve body, and a check valve. Due to the characteristics of the Stirling engine, the Stirling engine is in an extreme working condition of high pressure and high flow for a long time. Accordingly, the gas management valve block must be fully considered and adapted to the above-described operating environment, fully meeting the safety and reliability requirements of the stirling engine during operation.

In summary, there is a need for a new gas management valve set suitable for the characteristics of stirling engines, which is suitable for high pressure and high flow applications, and can safely and efficiently implement fluid control and management without complex operations, manufacturing and integration.

Disclosure of Invention

The present invention addresses the state of the art by providing a gas management valve stack.

The invention adopts the following technical scheme that the gas management valve bank is adapted to a Stirling engine and is characterized in that the gas management valve bank is provided with a gas inlet channel, a gas outlet channel and a gas exhaust channel, and the gas management valve bank comprises:

the normally closed electromagnetic valve and the normally open electromagnetic valve are sequentially and fixedly connected to the valve body through threads respectively, and the pressure sensor is fixedly connected to the valve body through threads;

the gas inlet joint and the gas outlet joint are respectively communicated with a gas inlet channel and a gas outlet channel of a gas management valve group, and the muffler, the gas inlet joint and the gas outlet joint are respectively fixedly connected to the valve body in sequence through threads;

the gas management valve group comprises a filter, a safety valve device, a one-way valve and a pressure release valve, wherein the filter is fixedly connected with the valve body through threads, the safety valve device is fixedly connected with the valve body through threads, the one-way valve is fixedly connected with the valve body through threads, the pressure release valve is fixedly connected with the valve body through threads, the filter is mutually independently communicated with a gas inlet channel, a gas outlet channel and a gas exhaust channel of the gas management valve group, and the safety valve device, the one-way valve and the pressure release valve are respectively communicated with the gas exhaust channel of the gas management valve group.

According to the technical scheme, the valve body comprises a seat body, a first plug, a first O-shaped sealing ring, a second O-shaped sealing ring and a second plug, and the first plug and the second plug are sequentially and fixedly connected to the seat body through threads respectively.

According to the technical scheme, the valve body further comprises a first valve seat, a third O-shaped sealing ring and a second valve seat, and the first valve seat and the second valve seat are fixedly connected to the seat body respectively through tight fit.

According to the technical scheme, the valve body further comprises a fourth O-shaped sealing ring, and the fourth O-shaped sealing ring is fixedly connected to the valve body through threads.

According to the technical scheme, the number of the normally closed electromagnetic valves is 3.

According to the technical scheme, the filter comprises a fixed seat, a fifth O-shaped sealing ring, a filter element and a sixth O-shaped sealing ring.

According to the above technical solution, the safety valve device includes a rupture disk, a fixing ring, and a fastening bolt.

According to the technical scheme, the one-way valve comprises a seventh O-shaped sealing ring, a one-way valve seat, a one-way valve core, a one-way valve spring and a one-way valve body, and the one-way valve seat is fixedly connected to the one-way valve body through over-tight fit connection.

According to the technical scheme, the pressure release valve comprises a plug and a steel ball.

According to the technical scheme, the gas management valve group is provided with a first gas channel hole, a second gas channel hole, a third gas channel hole, a fourth gas channel hole and a fifth gas channel hole, the first gas channel hole is connected with a cooling area of the Stirling engine, the second gas channel hole is connected with a piston cavity of the Stirling engine, the third gas channel hole is connected with a heating area of the Stirling engine, the fourth gas channel hole is connected with a high-pressure gas source, and the fifth gas channel hole is connected with a low-pressure pipeline.

The gas management valve bank disclosed by the invention has the beneficial effects that the gas management valve bank is suitable for high-pressure and high-flow application occasions, such as a Stirling engine.

Drawings

Fig. 1 is a perspective view of a preferred embodiment of the present invention from one perspective.

Fig. 2 is a perspective view of another perspective of a preferred embodiment of the present invention.

Fig. 3 is an exploded view of a perspective of the preferred embodiment of the present invention.

Fig. 4 is an exploded view of another perspective of the preferred embodiment of the present invention.

Fig. 5 is a system schematic of a preferred embodiment of the present invention.

Fig. 6 and 7 are block diagrams of a preferred embodiment of the present invention.

Detailed Description

The present invention discloses a gas management valve assembly, and the following detailed description of the invention is provided in connection with the preferred embodiments.

Preferably, the gas management valve stack 10 is suitable for use in high pressure, high flow applications, such as stirling engines.

Referring to fig. 1 to 4, 6 and 7 of the drawings, the gas management valve group 10 disclosed by the invention comprises a valve body 20, a normally closed solenoid valve 30, a pressure sensor 40, a normally open solenoid valve 50, a muffler 60, an air inlet joint 70, an air outlet joint 80, a filter 90, a safety valve device 100, a one-way valve 110 and a pressure relief valve 120.

The normally closed electromagnetic valve 30 and the normally open electromagnetic valve 50 are respectively and fixedly connected to the valve body 20 through threads in sequence. The pressure sensor 40 is fixed to the valve body 20 by a screw connection. The filter 90 is fixedly coupled to the valve body 20 by a screw. The safety valve device 100 is fixedly attached to the valve body 20 by a screw. The check valve 110 is fixedly coupled to the valve body 20 by a screw. The relief valve 120 is fixed to the valve body 20 by a screw.

Preferably, the valve body 20 includes a seat body 21, a first plug 22, a first O-ring 23, a second O-ring 24 and a second plug 25, and the first plug 22 and the second plug 25 are sequentially and fixedly connected to the seat body 21 through threads.

The valve body 20 further includes a first valve seat 26, a third O-ring 27 and a second valve seat 28, and the first valve seat 26 and the second valve seat 28 are respectively fixedly connected to the seat body 21 by over-tight fitting. The muffler 60, the air inlet joint 70 and the air outlet joint 80 are respectively and fixedly connected to the valve body 20 through threads in sequence. The valve body 20 further comprises a fourth O-ring 61, and the fourth O-ring 61 is fixedly connected to the valve body 20 through threads. The normally closed electromagnetic valves 30 include a first normally closed electromagnetic valve 31, a second normally closed electromagnetic valve 32, and a third normally closed electromagnetic valve 33. The filter 90 includes a fixing seat 91, a fifth O-ring 92, a filter element 93, and a sixth O-ring 94. The safety valve device 100 includes a rupture disc 101, a fixing ring 102, and a fastening bolt 103. The check valve 110 includes a seventh O-ring 111, a check valve seat 112, a check valve spool 113, a check valve spring 114, and a check valve body 115. The check valve seat 112 is fixedly connected to the check valve body 115 by an over-tight fit connection. The pressure relief valve 120 includes a plug 122 and a steel ball 121.

Referring to fig. 2 of the drawings, the gas management valve group 10 is provided with first to fifth

air passage holes

11,12,13,71,81, and the first to fifth

air passage holes

11,12,13,71,81 are respectively communicated with the outside. Preferably, the first air passage hole 11 is connected to a cooling zone of the stirling engine. The second passage hole 12 is connected to a piston chamber of the stirling engine. The third port hole 13 is connected to a heating zone of the stirling engine. The fourth air passage hole 71 is connected to a high pressure air source. The fifth air passage hole 81 is connected to a low pressure pipe.

In accordance with the preferred embodiment described above, the gas management valve assembly 10 of the present invention is primarily intended for use in high pressure, high flow applications, such as stirling engines. Stirling engines typically employ hydrogen as the transport medium. The stirling engine comprises a double-acting piston on both sides of which the hydrogen is heated and cooled, with the hydrogen expanding and contracting. To maintain maximum efficiency, the level of average system pressure depends on the amount of heating and cooling available. In order to ensure that the hydrogen smoothly shuttles in the Stirling engine, a gas circuit management system, such as the gas management valve bank of the invention, is matched correspondingly. Removal of the heating and cooling sources when the engine is unloaded is not quickly achieved, and irreversible damage is likely to quickly result. The gas management valve group acts on a double-acting piston of the Stirling engine to enable the Stirling engine to stop quickly, and the pressure difference acting on the double-acting piston disappears quickly to avoid damage to the engine.

Referring to fig. 5 of the drawings, when the stirling engine operates, high-pressure gas enters the gas inlet channel of the gas management valve group 10 through the fourth gas channel hole 71, passes through the filter 90 and the third normally closed solenoid valve 33 which is opened by electrification in sequence, enters the third gas channel hole 13, and finally enters the heating area of the stirling engine. The high pressure gas discharged from the cooling area of the stirling engine enters the gas management valve block 10 through the first gas passage hole 11, and returns to the gas inlet passage through the filter 90 and the check valve 110 for internal gas exchange. High pressure gas from the stirling engine piston chamber enters the gas management valve block 10 through the second gas passage hole 12. The pressure sensor 40 monitors the pressure of the high-pressure gas in real time and sends pressure data to an Electronic Control Unit (ECU) of the stirling engine in real time. When the external energy of the Stirling engine is insufficient or the Stirling engine needs to be stopped, the second normally closed electromagnetic valve 32 is electrified and opened, and high-pressure gas enters a low-pressure pipeline of the Stirling engine through the filter 90, the second normally closed electromagnetic valve 32 and the fifth air passage hole 81. When the stirling engine needs to replace the internal gas, the gas needs to be repeatedly charged, and the first normally closed solenoid valve 31 is repeatedly opened. The internal gas is discharged through the muffler 60, and the internal gas replacement is performed. When the stirling engine is operating, the normally open solenoid valve 50 is always in the energized state, closing the line between the intake passage and the exhaust passage. The normally open solenoid valve 50 is used for emergency shutdown or emergency shutdown in case of interruption of the external power supply. When the system pressure is higher than the set maximum pressure, the electronic control unit controls the safety valve 100 to be opened, high-pressure gas is discharged through the muffler 60, and the Stirling engine is stopped. When the system pressure is greater than the set maximum pressure and the safety valve 100, the first and second normally closed

solenoid valves

31,32, the normally open solenoid valve 50 and the electronic control unit fail, the pressure relief valve 120 can be manually opened, high-pressure gas is discharged through the muffler 60, and the stirling engine is stopped.

According to the preferred embodiment described above, the gas management valve block 10 is positioned adjacent the block of the stirling engine between the inlet and outlet passages of the fluid flow path. The inlet and outlet passages of the stirling engine are defined in the cylinder block immediately adjacent the primary port. The gas management valve group comprises a valve body, a normally closed electromagnetic valve, a pressure sensor, a normally open electromagnetic valve, a silencer, an air inlet joint, an air outlet joint, a filter, a one-way valve, a safety valve and a pressure release valve, wherein the normally closed electromagnetic valve is fixed on the valve body, and the opening and closing of a channel are realized through power on and power off. The pressure sensor is fixed on the valve body and used for monitoring the pressure of the gas circuit. The normally open electromagnetic valve is fixed on the valve body, and the opening and closing of the channel are realized by switching on and off. The muffler is fixed on the valve body to reduce noise generated by high-pressure gas emission. The air inlet connector and the air outlet connector are fixed on the valve body so as to be connected with a pipeline. The filter is fixed in the valve body to realize the filtration of gas and ensure the cleanness of the gas. The check valve is fixed in the valve body to realize the one-way conduction of the air passage. The safety valve is fixed in the valve body, and when the pipeline pressure exceeds a set pressure, the safety valve is opened to realize a protection function. The pressure relief valve is fixed in the valve body, and when the pipeline pressure exceeds the set pressure and the safety valve fails, the pressure relief valve can be opened to realize the protection function of the gas management valve. The gas management valve bank is compact in design, durable, easy to manufacture and low in cost.

It will be apparent to those skilled in the art that modifications and equivalents may be made in the embodiments and/or portions thereof without departing from the spirit and scope of the present invention.

Claims

1. A gas management valve block adapted for a stirling engine, wherein the gas management valve block is provided with an inlet channel, an outlet channel and an exhaust channel, the gas management valve block comprising:

the normally closed electromagnetic valve and the normally open electromagnetic valve are sequentially and fixedly connected to the valve body through threads respectively, the pressure sensor is fixedly connected to the valve body through threads, and the normally closed electromagnetic valve comprises a first normally closed electromagnetic valve, a second normally closed electromagnetic valve and a third normally closed electromagnetic valve;

the gas management valve group comprises a filter, a safety valve device, a one-way valve and a pressure relief valve, wherein the filter is fixedly connected to the valve body through threads, the safety valve device is fixedly connected to the valve body through threads, the one-way valve is fixedly connected to the valve body through threads, the pressure relief valve is fixedly connected to the valve body through threads, the filter is mutually and independently communicated with a gas inlet channel, a gas outlet channel and a gas exhaust channel of the gas management valve group, and the safety valve device, the one-way valve and the pressure relief valve are respectively communicated with the gas exhaust channel of the gas management valve group;

the gas management valve group is provided with first to fifth gas channel holes, the first gas channel hole is connected with a cooling area of the Stirling engine, the second gas channel hole is connected with a piston chamber of the Stirling engine, the third gas channel hole is connected with a heating area of the Stirling engine, the fourth gas channel hole is connected with a high-pressure gas source, and the fifth gas channel hole is connected with a low-pressure pipeline;

when the Stirling engine works, high-pressure gas enters the gas inlet channel of the gas management valve group through the fourth gas channel hole, sequentially passes through the filter and the third normally closed electromagnetic valve which is opened by electrifying, is introduced into the third gas channel hole, and finally enters the heating area of the Stirling engine; high-pressure gas discharged from a cooling area of the Stirling engine enters a gas management valve group through a first gas passage hole, returns to a gas inlet passage through a filter and a one-way valve and exchanges internal gas; high-pressure gas from a piston chamber of the Stirling engine enters the gas management valve group through a second gas passage hole; the pressure sensor monitors the pressure of the high-pressure gas in real time and sends pressure data to an electric control unit of the Stirling engine in real time;

when the external energy of the Stirling engine is insufficient or the Stirling engine needs to be stopped, the second normally closed electromagnetic valve is electrified and opened, and high-pressure gas enters a low-pressure pipeline of the Stirling engine through the filter, the second normally closed electromagnetic valve and the fifth air passage hole;

when the Stirling engine needs to replace internal gas, repeated inflation is needed, the first normally closed electromagnetic valve is repeatedly opened, the internal gas is discharged through the silencer, and internal gas replacement is achieved;

when the Stirling engine operates, the normally open electromagnetic valve is always in a power-on state and seals a pipeline between the air inlet channel and the exhaust channel, and the normally open electromagnetic valve is used for emergency shutdown or emergency shutdown under the condition of external power supply interruption;

when the system pressure is greater than the set maximum pressure, the electric control unit controls the safety valve to be opened, high-pressure gas is discharged through the muffler, the Stirling engine stops, when the system pressure is greater than the set maximum pressure, and under the condition that the safety valve, the first and second normally closed electromagnetic valves, the normally open electromagnetic valve and the electric control unit fail, the pressure release valve is manually opened, the high-pressure gas is discharged through the muffler, and the Stirling engine stops.

2. The gas management valve assembly of claim 1, wherein the valve body comprises a seat body, a first plug, a first O-ring, a second O-ring, and a second plug, and the first plug and the second plug are sequentially and fixedly connected to the seat body through threads.

3. The gas management valve stack of claim 2, wherein the valve body further comprises a first valve seat, a third O-ring seal, and a second valve seat, the first and second valve seats being fixedly attached to the housing body by over-tight fit, respectively.

4. The gas management valve stack of any of claims 2 or 3, wherein the valve body further comprises a fourth O-ring seal fixedly attached to the valve body by threads.

5. The gas management valve stack of claim 1, wherein the filter includes a retaining base, a fifth O-ring, a filter cartridge, and a sixth O-ring.

6. The gas management valve stack of claim 1, wherein the safety valve arrangement comprises a rupture disk, a retaining ring, and a fastening bolt.

7. The gas management valve stack of claim 1, wherein the check valve comprises a seventh O-ring seal, a check valve seat, a check valve spool, a check valve spring, and a check valve body, and wherein the check valve seat is fixedly connected to the check valve body by an over-tight fit connection.

8. The gas management valve stack of claim 1, wherein the pressure relief valve comprises a plug and a steel ball.