Exhaust pressure relief device adapted to a gas-liquid separator

Abstract

The application relates to an exhaust pressure relief device matched with a gas-liquid separator, which comprises a shell, a gravity valve core, a float valve core, a low-pressure one-way valve and a high-pressure one-way valve; a float cavity is formed in the shell, when liquid is injected into the float cavity, the float valve core can float and rise to close the exhaust passage under the action of buoyancy; the inlet is communicated with the pressure relief port of the gas-liquid separation, the low-pressure one-way valve can be opened when the gas discharged from the gas-liquid separator reaches a first pressure value in the float cavity; the high-pressure one-way valve is opened when liquid enters the float cavity and reaches a second pressure value; the application is integrated, the product appearance and weight are reduced, gas discharge and liquid discharge share one channel, multifunctional integrated design is realized, and the ground maintenance of the integrated liquid supply assembly is facilitated.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of airborne aviation liquid cooling systems, and particularly relates to an exhaust pressure relief device adapted to a gas-liquid separator. BACKGROUND

[0002] For the gas exhaust mode of the airborne liquid cooling system directly adding liquid and exhausting, the cooling liquid is directly injected, and the exhaust valve is manually opened to exhaust the gas. The gas in the system is not easy to exhaust, or part of the liquid is exhausted at the same time. In addition, when the attitude of the aircraft changes, the exhausted gas or liquid or condensed liquid of the gas will flow back.

[0003] The problem is that the gas collected by the airborne liquid cooling system during operation needs to be exhausted at a high pressure. When the pressure does not reach the specified pressure value, the gas separated in the system cannot be exhausted in time, and part of the gas is brought into the system in the fluid flow, causing the liquid cooling pump in the system to cavitate, affecting the service life of the liquid cooling pump SUMMARY

[0004] The purpose of the present application is to provide a new type of automatic exhaust group for an airborne integrated liquid supply assembly. On the one hand, the system gas can be exhausted in time, and on the other hand, the cooling liquid in the system can be prevented from flowing out of the valve under various attitudes of the aircraft. At the same time, the separated gas in the airborne liquid cooling system can be exhausted in time, the cavitation of the liquid cooling pump is reduced, and the service life of the liquid cooling pump is improved.

[0005] The technical solution of the present application is:

[0006] The exhaust pressure relief device adapted to the gas-liquid separator comprises a housing, a gravity valve core, a float valve core, a low-pressure one-way valve, and a high-pressure one-way valve.

[0007] The housing forms a float chamber. The housing is provided with a pressure relief port and a guide inlet. An exhaust passage and a liquid discharge passage are formed from the float chamber to the pressure relief port. A guide inlet passage is formed from the float chamber to the guide inlet.

[0008] The low-pressure one-way valve is arranged in the exhaust passage, and the high-pressure one-way valve is arranged in the liquid discharge passage. The low-pressure one-way valve and the high-pressure one-way valve are both normally closed valves. When the float chamber is filled with liquid, the float valve core can float and rise under the action of the buoyancy to close the exhaust passage.

[0009] The guide inlet is in communication with the pressure relief port of the gas-liquid separator. When the gas discharged by the gas-liquid separator reaches a first pressure value in the float chamber, the low-pressure one-way valve can be opened. When the liquid enters the float chamber and reaches a second pressure value, the high-pressure one-way valve is opened. The first pressure value is less than the second pressure value.

[0010] The gravity valve core is arranged in the introduction channel, and the gravity valve core is arranged freely, and when the gravity direction points to the outside of the introduction port, the gravity valve core opens the introduction channel, and when the gravity direction points to the inside of the introduction port, the gravity valve core closes the introduction channel.

[0011] Further, the low-pressure one-way valve includes a first spring and a first sliding valve core, and the first spring applies a pre-tightening force to the first sliding valve core. Further, the high-pressure one-way valve includes a second spring and a second sliding valve core, and the second spring applies a pre-tightening force to the second sliding valve core. Preferably, the second spring is harder than the first spring.

[0012] Further, the float valve core is a hollow structure.

[0013] Further, the gravity valve core is a ball valve core.

[0014] Further, the pressure discharge port 6 is provided with a joint assembly.

[0015] Further, the introduction channel is provided with a sealing ring matched with the gravity valve core.

[0016] The advantages of the present application are that: the present application adopts a float valve core and a gas discharge valve to form a gas collection cavity, and when the gas pressure reaches a specified pressure, the gas is discharged; a gas-liquid isolation cavity is formed between the float cavity and the gravity valve core, and has a gas-liquid separation function; and the safety valve is connected through a certain function, which can realize gas discharge and over-protection, adapt to various attitudes of the airplane, and integrated design reduces the product shape and weight.

[0017] During the product operation process, when the airplane rolls, the gravity valve core can prevent the backflow of the discharged liquid. While realizing the gas discharge, the function of over-pressure protection is also realized, and when the liquid pressure is too large, the pressure can be released in time to protect the hydraulic system and functional components, such as the gas-liquid separator. The integrated design reduces the product shape and weight. The gas discharge and liquid discharge share one channel, realizing the multifunctional integrated design. It is convenient for the ground maintenance of the integrated liquid supply assembly. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a structural schematic diagram of the present application;

[0019] In the figure: the shell 1, the gravity valve core 2, the float valve core 3, the low-pressure one-way valve 4, the high-pressure one-way valve 5, the pressure discharge port 6, the introduction port 7, the gas discharge channel 8, the liquid discharge channel 9, the introduction channel 10, the gas-liquid separator 11, and the float cavity A. DETAILED DESCRIPTION

[0020] The features and exemplary embodiments of the various aspects of the present application will be described below in detail. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, it will be apparent to one skilled in the art that the present application can be practiced without some or all of these specific details. The description of the embodiments is merely intended to provide a better understanding of the present application by showing examples of the present application. The present application is not limited to any particular set of details disclosed below, but covers all modifications, equivalents, and alternatives falling within the spirit of the present application. In the drawings and the following description, well-known structures and techniques have not been shown or described in detail in order not to obscure the present application.

[0021] It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other, and each embodiment can be cross-referenced and cited, without conflict. The present application will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0022] An automatic exhaust combination valve for an airborne integrated liquid supply assembly is provided, comprising a housing 1, a gravity valve core 2, a float valve core 3, a low-pressure one-way valve 4, and a high-pressure one-way valve 5;

[0023] A float chamber A is formed in the housing 1, the housing is provided with a pressure discharge port 6 and a guide inlet 7, an exhaust passage 8 and a liquid discharge passage 9 are formed from the float chamber to the pressure discharge port, and a guide inlet passage 10 is formed from the float chamber to the guide inlet;

[0024] The low-pressure one-way valve is arranged in the exhaust passage, and the high-pressure one-way valve is arranged in the liquid discharge passage; both the low-pressure one-way valve and the high-pressure one-way valve are normally closed valves; when the float chamber is filled with liquid, the float valve core can float and rise under the action of buoyancy to close the exhaust passage;

[0025] The guide inlet is in communication with the pressure discharge port of a gas-liquid separator 11, the low-pressure one-way valve can be opened when the gas discharged from the gas-liquid separator reaches a first pressure value in the float chamber, and the high-pressure one-way valve is opened when liquid enters the float chamber and reaches a second pressure value; the first pressure value is less than the second pressure value;

[0026] The gravity valve core is arranged in the guide inlet passage, and the gravity valve core is freely arranged; when the direction of gravity points outward of the guide inlet, the gravity valve core opens the guide inlet passage; when the direction of gravity points inward of the guide inlet, the gravity valve core closes the guide inlet passage.

[0027] The low-pressure one-way valve comprises a first spring and a first spool valve core, and the first spring exerts a pre-tightening force on the first spool valve core. The high-pressure one-way valve comprises a second spring and a second spool valve core, and the second spring exerts a pre-tightening force on the second spool valve core. The second spring is harder than the first spring.

[0028] The float valve core is a hollow structure.

[0029] The gravity valve core is a ball valve core.

[0030] The pressure discharge port 6 is provided with a joint assembly.

[0031] The guide channel is provided with a sealing ring matched with the gravity valve core.

[0032] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

Claims

1. An automatic vent combination valve for an airborne integrated fluid feed assembly, characterized by: The valve comprises a housing (1), a gravity valve core (2), a float valve core (3), a low-pressure check valve (4) and a high-pressure check valve (5). The housing (1) is provided with a float chamber (A), a pressure discharge port (6) and a guide inlet (7), an exhaust passage (8) and a liquid discharge passage (9) are formed from the float chamber to the pressure discharge port, and a guide inlet passage (10) is formed from the float chamber to the guide inlet; The low-pressure check valve is arranged in the exhaust passage, and the high-pressure check valve is arranged in the liquid discharge passage; both the low-pressure check valve and the high-pressure check valve are normally closed valves; when the float chamber is filled with liquid, the float valve core can float and rise to close the exhaust passage under the action of buoyancy; The guide inlet is communicated with a pressure discharge port of a gas-liquid separator (11), and the low-pressure check valve can be opened when the gas discharged from the gas-liquid separator reaches a first pressure value in the float chamber; the high-pressure check valve is opened when liquid enters the float chamber and reaches a second pressure value; The first pressure value is less than the second pressure value. The gravity valve core is arranged in the guide inlet passage, and the gravity valve core is free to set; when the direction of gravity is directed outward of the guide inlet, the gravity valve core opens the guide inlet passage; when the direction of gravity is directed inward of the guide inlet, the gravity valve core closes the guide inlet passage.

2. A method according to claim 1, wherein The low-pressure check valve comprises a first spring and a first sliding block valve core, and the first spring exerts a pre-tightening force on the first sliding block valve core.

3. A composition according to claim 1 or 2, wherein The high-pressure check valve comprises a second spring and a second sliding block valve core, and the second spring exerts a pre-tightening force on the second sliding block valve core.

4. A method according to claim 3, wherein The second spring is harder than the first spring.

5. The method of claim 1, wherein The float valve core is a hollow structure.

6. The method of claim 1, wherein The gravity valve core is a spherical valve core.

7. The method of claim 1, wherein The pressure discharge port (6) is provided with a joint assembly.

8. The method of claim 1, wherein The guide inlet passage is provided with a sealing ring, which cooperates with the gravity valve core.

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