CN113154100B - Automatic pressure relief valve for blind mate fluid connector plug and cooling module protection - Google Patents

Automatic pressure relief valve for blind mate fluid connector plug and cooling module protection Download PDF

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Publication number
CN113154100B
CN113154100B CN202011312634.2A CN202011312634A CN113154100B CN 113154100 B CN113154100 B CN 113154100B CN 202011312634 A CN202011312634 A CN 202011312634A CN 113154100 B CN113154100 B CN 113154100B
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China
Prior art keywords
piston
cooling module
fluid connector
spring
pressure
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Application number
CN202011312634.2A
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Chinese (zh)
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CN113154100A (en
Inventor
赵文生
李龙
冯静
陆幸骏
张剑冰
沈彤
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Yangzhou Institute Of Marine Electronic Instruments No723 Institute Of China Shipbuilding Industry Corp
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Yangzhou Institute Of Marine Electronic Instruments No723 Institute Of China Shipbuilding Industry Corp
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Priority to CN202011312634.2A priority Critical patent/CN113154100B/en
Publication of CN113154100A publication Critical patent/CN113154100A/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
    • F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
    • F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
    • F16K17/0413—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded in the form of closure plates
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
    • F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
    • F16K17/044—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with more than one spring
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
    • F16K17/164—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side and remaining closed after return of the normal pressure

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)

Abstract

The invention provides an automatic pressure relief valve for protecting a blind-mate fluid connector plug and a cooling module. The inside of the shell is of a cavity structure, the piston and the baffle ring are arranged in the cavity of the shell, the piston can slide in the cavity, the baffle ring is limited at one end of the shell under the action of the spring and the retainer ring, the baffle ring is provided with a through hole which is communicated with the outside atmosphere, and the spring is arranged between the piston and the baffle ring; along with the connection degree of the socket and the plug of the fluid connector crossing the critical position, the piston moves towards the baffle ring under the comprehensive action of pressure, spring force and friction force generated by pressure difference between the inside and the outside of the cooling module, so that the pressure increase of the flow channel inside the cooling module is slowed down, and the automatic connection of the fluid connector is ensured. The invention has simple structure and high reliability and safety, and solves the problems of the possibility of manual forgetting operation of the import pressure relief valve and the low reliability and potential safety hazard caused by the manual forgetting operation.

Description

Automatic pressure relief valve for blind mate fluid connector plug and cooling module protection
Technical Field
The invention relates to a pressure relief valve, in particular to an automatic pressure relief valve for protecting a blind-mate fluid connector plug and a cooling module.
Background
The connection and transmission device between liquid cooling systems of some type of equipment consists of a blind-mate fluid connector plug mounted on a cooling module and a socket mounted on a chassis or chassis cooling line base (see fig. 1). The socket and the plug are required to achieve good sealing effect in the connection and disconnection processes and in the connection state, so that the normal operation of the liquid cooling system can be ensured.
When the blind-insert fluid connector is connected, especially when the valve is not closed by normal fluid flow, due to the difference of internal structures of a plug and a socket of the blind-insert fluid connector, after the cooling module is first plugged and unplugged, the internal flow channel of the cooling module is filled with liquid, and when the blind-insert fluid connector is plugged and connected again, before the fluid connector is not connected, because no outlet exists in the internal flow channel, larger positive pressure can be generated, if the cooling module is not provided with a pressure relief valve for pressure relief, the blind-insert fluid connector can not be plugged and connected normally, or even if the blind-insert fluid connector is plugged with force, the leakage amount of the liquid at the joint of the fluid plug and the socket of the fluid connector can be increased, and meanwhile, very large pressure is applied to the internal flow channel of the cooling module, so that the cooling module is deformed and broken, and the pressure relief valve is required to be installed on the cooling module provided with the fluid connector plug in a resynchronization mode. Some import relief valves are high in price, and must be manually operated before and after the blind-mate fluid connectors are connected, so that the possibility of forgetting operators and the consequent low reliability and potential safety hazards exist.
Disclosure of Invention
The invention aims to provide an automatic pressure relief valve for protecting a blind-mate fluid connector plug and a cooling module.
The technical solution for realizing the purpose of the invention is as follows: an automatic pressure relief valve for blind mate fluid connector plug, cooling module protection, comprising a housing, a piston, a retainer ring, a spring, wherein:
the inside of the shell is of a cavity structure, the piston and the baffle ring are arranged in the cavity of the shell, the piston can slide in the cavity, the baffle ring is limited at one end of the shell under the action of a spring and a retainer ring, a through hole is formed in the baffle ring and communicated with the outside atmosphere, and the spring is arranged between the piston and the baffle ring;
along with the connection degree of the socket and the plug of the fluid connector crossing the critical position, the piston moves towards the baffle ring under the comprehensive action of pressure, spring force and friction force generated by pressure difference between the inside and the outside of the cooling module, so that the pressure increase of the flow channel inside the cooling module is slowed down, and the automatic connection of the fluid connector is ensured.
Further, a first sealing ring is arranged on the outer wall of the shell and used for guaranteeing the air tightness of the pressure relief valve and the cooling module; the outer wall of the piston is provided with a second sealing ring for ensuring the air tightness between the piston and the shell.
Furthermore, the first sealing ring and the second sealing ring are O-shaped sealing rings, and annular grooves are formed in the shell and the piston and are used for installing the O-shaped sealing rings.
Further, the diameters of the inner cavities of the shells are the same.
Further, the spring is a combined spring comprising a first spring and a second spring, and the outer diameters of the first spring and the second spring are different.
Further, the baffle ring outer wall sets up the chamfer, shells inner wall sets up the retaining ring, chamfer and retaining ring cooperation provide the component to the casing inner chamber external diameter direction to the retaining ring, prevent that retaining ring and baffle ring from droing from the casing.
Furthermore, a blind counter bore is formed in the piston and used for guaranteeing a storage space after the spring is fully compressed and guaranteeing stable compression of the spring along the axis.
The protection method for the blind-mate fluid connector plug and the cooling module is based on the automatic pressure relief valve, and comprises the following specific working processes:
at the moment when the cooling module blind-mate fluid connector is just connected, the piston moves to the baffle ring to the maximum position; when the fluid connector is connected, the pressure of the internal flow channel of the cooling module is rapidly reduced from the maximum value, the pressure of the internal flow channel of the cooling module is reduced to a stable value during normal operation, the elastic force of the piston applied by the spring is larger than the pressure applied by the pressure of the internal flow channel of the cooling module, the piston automatically moves and resets, and when the piston moves to a certain position, the resultant force of the pressure, the spring force and the friction force applied by the piston is 0, the piston stops moving; when the fluid connector is disconnected, the pressure of the internal flow channel of the cooling module is reduced to the minimum, and the piston is far away from the baffle ring to the maximum position at the moment, so that the pressure relief valve can repeatedly complete the protection work of the plug and the cooling module in the next blind-mate fluid connector connection process.
Compared with the prior art, the invention has the remarkable advantages that: the internal pressure of the cooling module flow channel before and after the blind-mate fluid connector of the cooling module is connected can be automatically adjusted without manual operation before and after connection, normal connection of the fluid connector is ensured, the structure is simple, the reliability and the safety are high, and the problem that the inlet pressure relief valve is likely to forget to operate manually and the reliability and the safety hidden trouble brought by the manual operation is solved.
Drawings
FIG. 1 is a schematic diagram of a cooling module, cooling lines, fluid connectors, and pressure relief valve assembly connection.
FIG. 2 is a schematic diagram of a pressure relief valve assembly.
FIG. 3 is a schematic illustration of the pressure relief valve in operation prior to fluid communication with the fluid connector.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application will be further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the present application.
In connection with fig. 1, an automatic pressure relief valve for blind mate fluid connector plug, cooling module protection, and blind mate fluid connector plug are mounted together on a cooling module and establish communication through a cooling module internal flow passage.
With reference to fig. 2, the pressure relief valve is composed of a housing 1, a piston 2, a baffle ring 3, a first spring 4, a second spring 5, a retainer ring 6, a first sealing ring 7 and a second sealing ring 8. The diameters of the inner cavities of the shell 1 are the same, the piston 2, the first spring 4, the second spring 5 and the baffle ring 3 are assembled into the shell 1 through check rings, the outer diameters of the first spring 4 and the second spring 5 are different, a combined spring is formed, and the baffle ring 3 is provided with a through hole and is communicated with the outside atmosphere. After the cooling module is first plugged in and out, when the cooling module is plugged in and connected again, larger positive pressure is generated in the internal flow passage of the cooling module, and the pressure is transmitted to the pressure relief valve through the internal flow passage. Along with the deepening of the connection degree of the socket and the plug of the fluid connector, the positive pressure in the flow channel is gradually increased, and when the positive pressure is increased to a certain degree, the piston 2 gradually enters a movement critical state under the combined action of the thrust generated by the positive pressure formed in the cooling module, the external atmospheric pressure, the elastic force generated by the first spring 4 and the second spring 5, and the friction force between the piston 2 and the second sealing ring 8 and the shell 1.
Furthermore, a first sealing ring 7 is arranged on the outer wall of the shell 1 and is used for ensuring the air tightness of the pressure relief valve and the cooling module; the outer wall of the piston 2 is provided with a second sealing ring 8 for ensuring the air tightness between the piston 2 and the shell. Further, the first sealing ring 7 and the second sealing ring 8 are O-shaped sealing rings and are arranged in annular grooves on the shell 1 and the piston 2. The baffle ring 3 outer wall sets up the chamfer, and casing 1 inner wall sets up retaining ring 6, chamfer and retaining ring 6 cooperation provide the component to casing inner chamber external diameter direction to retaining ring 6, prevent that retaining ring 6 and baffle ring 3 from coming off from the casing. And a non-through counter bore is formed in the piston 2 and used for ensuring the storage space after the spring is fully compressed and ensuring the stable compression of the spring along the axial line.
With reference to fig. 3, as the connection degree of the socket and the plug of the fluid connector passes the critical position, the piston 2 starts to automatically move rightward under the combined action of pressure, spring force and friction force generated by the pressure difference between the inside and the outside of the cooling module, so that the pressure increase of the flow channel inside the cooling module caused by the deepening of the connection degree of the socket and the plug of the fluid connector is slowed down, and the automatic connection of the fluid connector is ensured. When the fluid connector is connected, the pressure of the internal flow channel of the cooling module is reduced from the maximum value to a stable value, the pressure of the internal flow channel of the cooling module is reduced to a stable value during normal operation, the piston 2 is automatically reset by the left movement of the pressure relief valve under the condition that the elastic force of the first spring 4 and the second spring 5 is larger than the pressure exerted by the pressure of the internal flow channel of the cooling module, when the piston 2 moves to a certain position to the left, the resultant force of the pressure, the spring force and the friction force exerted by the piston 2 is 0, the piston 2 stops moving (if the pressure of the internal flow channel of the cooling module is smaller, the elastic force of the first spring 4 and the second spring 5 is large enough, the piston 2 directly returns to the state of fig. 2 when the fluid connector is disconnected, and the pressure of the internal flow channel of the cooling module is reduced to the minimum value at the moment, so that the piston 2 returns to the state of fig. 2, and the protection work of the plug and the cooling module can be repeatedly completed in the next blind connection process of the fluid connector is ensured.
The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples merely represent a few embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the invention. It should be noted that it would be apparent to those skilled in the art that various modifications and improvements could be made without departing from the spirit of the present application, which would be within the scope of the present application. Accordingly, the scope of protection of the present application is to be determined by the claims appended hereto.

Claims (5)

1. Automatic pressure relief valve for blind-mate fluid connector plug, cooling module protection, characterized in that it comprises a housing (1), a piston (2), a baffle ring (3), a spring and a retainer ring (6), wherein:
the inside of the shell (1) is of a cavity structure, the piston (2) and the baffle ring (3) are arranged in the cavity of the shell (1), the piston (2) can slide in the cavity, the baffle ring (3) is limited at one end of the shell (1) under the action of a spring and a retainer ring (6), a through hole is formed in the baffle ring (3) and communicated with the outside atmosphere, and the spring is arranged between the piston (2) and the baffle ring (3);
the outer wall of the shell (1) is provided with a first sealing ring (7) for ensuring the air tightness of the pressure relief valve and the cooling module; the outer wall of the piston (2) is provided with a second sealing ring (8) for ensuring the air tightness between the piston (2) and the shell; the spring is a combined spring comprising a first spring (4) and a second spring (5), and the outer diameters of the first spring (4) and the second spring (5) are different;
along with the connection degree of the socket and the plug of the fluid connector crossing the critical position, the piston (2) moves towards the baffle ring (3) under the combined action of pressure, spring force and friction force generated by the pressure difference between the inside and the outside of the cooling module, so that the pressure increase of the flow channel in the cooling module is slowed down, and the automatic connection of the fluid connector is ensured;
the protection method of the blind-mate fluid connector plug and the cooling module comprises the following specific working processes:
at the moment when the blind-mate fluid connector of the cooling module is just connected, the piston (2) moves to the baffle ring (3) to the maximum position; when the fluid connector is connected, the pressure of the internal flow channel of the cooling module is rapidly reduced from the maximum value, the pressure of the internal flow channel of the cooling module is reduced to a stable value during normal operation, at the moment, the elastic force of the piston (2) is larger than the pressure exerted by the pressure of the internal flow channel of the cooling module, the piston (2) automatically moves and resets, and when the piston (2) moves to a certain position, the resultant force of the pressure, the spring force and the friction force exerted by the piston (2) is 0, the piston (2) stops moving; when the fluid connector is disconnected, the pressure of the internal flow channel of the cooling module is reduced to the minimum, and at the moment, the piston (2) is far away from the baffle ring (3) to the maximum position, so that the pressure relief valve can repeatedly complete the protection work of the plug and the cooling module in the next blind-insert fluid connector connection process.
2. The automatic pressure relief valve for protecting a blind mate fluid connector plug and a cooling module according to claim 1, wherein the first sealing ring (7) and the second sealing ring (8) are O-ring type sealing rings, and annular grooves are arranged on the shell (1) and the piston (2) for installing the O-ring type sealing rings.
3. Automatic pressure relief valve for blind mate fluid connector plug, cooling module protection according to claim 1, characterized in that the housing (1) inner cavity diameter is the same.
4. The automatic pressure relief valve for protecting a blind-mate fluid connector plug and a cooling module according to claim 1, wherein a chamfer is arranged on the outer wall of the baffle ring (3), a retainer ring (6) is arranged on the inner wall of the shell (1), the chamfer is matched with the retainer ring (6), a component force in the outer diameter direction of the inner cavity of the shell is provided for the retainer ring (6), and the retainer ring (6) and the baffle ring (3) are prevented from falling off from the shell.
5. An automatic pressure relief valve for blind mate fluid connector plug, cooling module protection according to claim 1, characterized in that a blind counterbore is provided inside the piston (2) for ensuring a fully compressed storage space for the spring and for ensuring a stable compression of the spring along the axis guide.
CN202011312634.2A 2020-11-20 2020-11-20 Automatic pressure relief valve for blind mate fluid connector plug and cooling module protection Active CN113154100B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011312634.2A CN113154100B (en) 2020-11-20 2020-11-20 Automatic pressure relief valve for blind mate fluid connector plug and cooling module protection

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011312634.2A CN113154100B (en) 2020-11-20 2020-11-20 Automatic pressure relief valve for blind mate fluid connector plug and cooling module protection

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Publication Number Publication Date
CN113154100A CN113154100A (en) 2021-07-23
CN113154100B true CN113154100B (en) 2023-06-09

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Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3040772A (en) * 1959-12-28 1962-06-26 Fmc Corp Automatic reset relief valve
US6553979B2 (en) * 2000-05-25 2003-04-29 Asco Controls, Lp Pressure-regulating piston with built-in relief valve
US7806235B1 (en) * 2006-10-04 2010-10-05 Curtis Roys Environmental compressor protection assembly
CN104696556A (en) * 2015-02-09 2015-06-10 上海品屹工业设计有限公司 Fluid control valve and application thereof
CN204828821U (en) * 2015-08-11 2015-12-02 中国航空工业集团公司西安飞机设计研究所 Pressure safety valve

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