CN219035580U - Adopt oxygen driven low temperature valve - Google Patents
Adopt oxygen driven low temperature valve Download PDFInfo
- Publication number
- CN219035580U CN219035580U CN202222328540.5U CN202222328540U CN219035580U CN 219035580 U CN219035580 U CN 219035580U CN 202222328540 U CN202222328540 U CN 202222328540U CN 219035580 U CN219035580 U CN 219035580U
- Authority
- CN
- China
- Prior art keywords
- valve
- oxygen
- cover plate
- expansion
- channel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Lift Valve (AREA)
Abstract
The utility model provides a low-temperature valve driven by oxygen, which comprises a valve body, wherein a first channel and a second channel for liquid oxygen or gaseous oxygen to circulate are formed in the valve body, and the first channel and the second channel are communicated through a circulation port; the valve core is positioned at the circulation port; one end of the valve rod is connected with the valve core, and the other end of the valve rod penetrates through the valve body; one end of the elastic piece is arranged on the outer wall surface of the valve body; the expansion assembly at least comprises an expansion cavity for filling oxygen, so as to drive the valve rod to move and drive the valve core to close or open the circulation port. The medical liquid oxygen storage tank does not need to be supplemented with other gas media, oxygen evaporated by liquid oxygen in the medical liquid oxygen storage tank is fully utilized, and the medical liquid oxygen storage tank is used as a driving medium to enter the expansion cavity through the pipeline, so that the cost can be reduced. The utility model can ensure enough safety and reliability; the device has the advantages of simple structure, convenient operation and maintenance, low manufacturing cost and strong applicability.
Description
Technical Field
The utility model relates to the technical field of valves, in particular to a low-temperature valve driven by oxygen.
Background
Cryogenic liquids such as liquid oxygen are often used in the medical and industrial fields, however, control valves in piping systems for controlling the flow of liquid oxygen or oxygen sometimes require the use of a flow medium itself to control the closing or opening of the valve to reduce costs, while avoiding the inconvenience of using other gases to control the valve in the prior art. The utility model directly adopts oxygen to control the closing or opening of the valve, thereby reducing the cost and being safe and reliable.
Disclosure of Invention
The present utility model aims to solve at least one of the technical problems existing in the prior art.
To this end, the utility model provides a cryogenic valve that is driven with oxygen.
The utility model provides a low-temperature valve driven by oxygen, comprising:
the device comprises a valve body, a first valve body and a second valve body, wherein a first channel and a second channel for liquid oxygen or oxygen to circulate are formed in the valve body, and the first channel and the second channel are communicated through a circulation port;
the valve core is positioned at the circulation port;
one end of the valve rod is connected with the valve core, and the other end of the valve rod penetrates through the valve body;
one end of the elastic piece is arranged on the outer wall surface of the valve body, the other end of the elastic piece is connected with the baffle, and the valve rod penetrates through the elastic piece;
the expansion assembly at least comprises an expansion cavity for filling oxygen, the expansion cavity is communicated with oxygen evaporated by liquid oxygen in the medical liquid oxygen storage tank through a pipeline so as to ensure that the oxygen enters the expansion cavity through the pipeline, and at least part of the expansion assembly is connected with the other end of the valve rod so as to drive the valve rod to move and drive the valve core to close or open the circulation port.
The utility model provides a low-temperature valve driven by oxygen, which comprises a valve body, a valve core, a valve rod, an elastic piece and an expansion assembly. The valve core is used for opening or closing (closing) the circulation port, so that the normal use of the valve is ensured. On the basis, the valve rod penetrates through the valve body and is connected to a part of structure of the expansion assembly positioned outside, and when oxygen is filled in the expansion cavity, the part of structure drives the valve rod to move through movement, so that the valve rod drives the valve core to block (close) or open the circulation port, and the opening and closing process of the valve is realized. And the oxygen that liquid oxygen evaporated in inflation chamber and the medical liquid oxygen storage tank passes through the pipeline intercommunication, and oxygen gets into by the pipeline inflation chamber, for prior art, this application need not to supplement other gaseous medium, and the oxygen that liquid oxygen evaporated in the make full use of medical liquid oxygen storage tank makes it get into inflation chamber as driving medium through the pipeline, and then can reduce cost.
Therefore, the utility model can ensure enough safety and reliability; the device has the advantages of simple structure, convenient operation and maintenance, low manufacturing cost and strong applicability.
According to the technical scheme, the low-temperature valve driven by oxygen can also have the following additional technical characteristics:
in the above technical solution, the expansion assembly further includes:
an expansion joint, the expansion cavity being formed in the expansion joint;
the upper cover plate is arranged on the upper end surface of the expansion joint and is fixedly connected with the shell of the expansion joint;
the air inlet is formed on the upper cover plate so as to ensure that oxygen is conveyed to the expansion cavity;
the lower cover plate is arranged on the lower end face of the expansion joint, and the lower end face of the lower cover plate is connected with the other end of the valve rod;
the lower cover plate, the upper cover plate and the expansion joint form an expansion cavity.
In this technical scheme, the expansion assembly comprises expansion joint, upper cover plate, air inlet and lower apron. The specific driving process is as follows:
when oxygen is not filled into the expansion cavity (the force acted on the lower cover plate is 0 at the moment), the spring force P3 is larger than the sum of the pressure P2 born by the valve core, the force P1 acted on the lower cover plate and the force P4 compressed by the expansion joint, namely, when P3 is more than P1+P2+P4, the spring force pushes the baffle and the valve rod to move upwards, the valve rod drives the valve core to move upwards, the sealing surface on the valve core is contacted with the flow port on the valve body, the contact sealing between the valve core and the valve body is realized, the valve is in a closed state at the moment, and the valve rod moves upwards to push the expansion cavity to be compressed.
When the valve is required to work, oxygen with certain pressure is filled into the expansion cavity through an oxygen pipeline evaporated by liquid oxygen in the medical liquid oxygen storage tank, the sum of acting force P1 born on the lower cover plate and force P4 compressed by the expansion joint is larger than force P2 and spring force P3 acted on the valve core by fluid, namely P1+P4 > P2+P3, when the expansion joint straightens, the valve rod is pushed to drive the valve core to move downwards, and the valve core (the sealing surface on the valve core is separated from the sealing surface on the valve body at the moment) is opened for normal work.
In the above technical solution, the elastic member is a spring, and the valve rod passes through the spring without contacting.
In the technical scheme, the elastic piece is a spring. The valve rod passes through the inside of the spring and is connected to the lower cover plate.
In the technical scheme, the lower cover plate is fixedly connected with the end head of the valve rod.
In the technical scheme, the lower cover plate and the valve rod are limited to be fixedly connected, so that the connecting force of the lower cover plate and the valve rod is improved, and the valve rod is prevented from falling off accidentally.
In the technical scheme, the lower cover plate is detachably connected with the end head of the valve rod.
In the technical scheme, the lower cover plate and the valve rod are limited to be detachably connected. Specifically, can set up the installation screw thread counter bore on the lower apron, be formed with the external screw thread at the tip of valve rod, both realize threaded connection to make things convenient for the installation and the dismantlement of whole structure.
In the above technical solution, the housing of the expansion joint is provided with a mounting structure for connecting with an external connection object and maintaining a fixed state.
In the technical scheme, the installation structure can be added to the shell of the expansion joint. The mounting structure can be a bolt structure and is connected with an external connector in a bolt connection mode, so that the fixation and stability of the expansion assembly are ensured.
In the technical scheme, the upper cover plate, the lower cover plate and the expansion joint are in sealing connection.
Additional aspects and advantages of the utility model will be set forth in part in the description which follows, or may be learned by practice of the utility model.
Drawings
The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
fig. 1 is a schematic structural view of a cryogenic valve employing oxygen actuation in accordance with the present utility model.
The correspondence between the reference numerals and the component names in fig. 1 is:
1. a valve body; 101. a first channel; 102. a second channel; 2. a valve core; 3. a valve stem; 4. an elastic member; 5. a baffle; 6. an expansion chamber; 7. an expansion joint; 8. an upper cover plate; 9. an air inlet; 10. a lower cover plate; 11. a housing.
Detailed Description
In order that the above-recited objects, features and advantages of the present utility model will be more clearly understood, a more particular description of the utility model will be rendered by reference to the appended drawings and appended detailed description. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments may be combined with each other.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, however, the present utility model may be practiced otherwise than as described herein, and therefore the scope of the present utility model is not limited to the specific embodiments disclosed below.
A cryogenic valve employing oxygen actuation provided in accordance with some embodiments of the present utility model is described below with reference to fig. 1.
Some embodiments of the present application provide a cryogenic valve that is actuated with oxygen.
As shown in fig. 1, a first embodiment of the present utility model provides a cryogenic valve driven by oxygen, comprising:
a valve body 1, wherein a first channel 101 and a second channel 102 for liquid oxygen or oxygen circulation are formed in the valve body 1, wherein the first channel 101 and the second channel 102 are communicated through a circulation port;
a valve core 2 positioned at the flow port;
one end of the valve rod 3 is connected with the valve core 2, and the other end of the valve rod penetrates through the valve body 1;
an elastic member 4, one end of which is disposed on the outer wall surface of the valve body 1, the other end of which is connected with a baffle 5, and the valve rod 3 passes through the elastic member 4;
the expansion assembly at least comprises an expansion cavity 6 for filling oxygen, and at least part of the expansion assembly is connected with the other end of the valve rod 3 so as to drive the valve rod 3 to move and drive the valve core 2 to close or open a circulation port.
The utility model provides a low-temperature valve driven by oxygen, which comprises a valve body 1, a valve core 2, a valve rod 3, an elastic piece 4 and an expansion assembly. The first channel 101 and the second channel 102 inside the valve body 1 are used for fluid circulation, and the valve core 2 is used for opening or closing (closing) a circulation port, so that the normal use of the valve is ensured. On the basis of the above, the valve rod 3 penetrates through the valve body 1 and is connected to a part of the structure of the expansion assembly located outside, and when oxygen is filled in the expansion cavity 6, the part of the structure drives the valve rod 3 to move through movement, so that the valve rod 3 drives the valve core 2 to block (close) or open a circulation port, and the opening and closing process of the valve is realized. And the expansion cavity is communicated with oxygen evaporated by liquid oxygen in the medical liquid oxygen storage tank through a pipeline, and the oxygen enters the expansion cavity through the pipeline. Compared with the prior art, the medical liquid oxygen storage tank fully utilizes the oxygen evaporated by the liquid oxygen in the medical liquid oxygen storage tank, and the oxygen enters the expansion cavity as a driving medium through the pipeline, so that the cost can be reduced.
Therefore, the utility model can ensure enough safety and reliability; the device has the advantages of simple structure, convenient operation and maintenance, low manufacturing cost and strong applicability.
A second embodiment of the present utility model provides an oxygen-driven cryogenic valve, and, based on the first embodiment, the expansion assembly further comprises:
an expansion joint 7, the expansion chamber 6 being formed in the expansion joint 7;
the upper cover plate 8 is arranged on the upper end surface of the expansion joint 7 and is fixedly connected with the shell 11 of the expansion joint 7;
an air inlet 9 formed in the upper cover plate 8 to ensure the delivery of oxygen to the expansion chamber 6;
a lower cover plate 10 disposed on a lower end surface of the expansion joint 7, wherein the lower end surface of the lower cover plate 10 is connected with the other end of the valve rod 3;
the lower cover plate 10 forms an expansion chamber 6 with the upper cover plate 8 and expansion joints.
In this embodiment, the expansion assembly is constituted by an expansion joint 7, an upper cover plate 8, an air inlet 9 and a lower cover plate 10. The specific driving process is as follows:
when oxygen is not filled into the expansion cavity 6 (the force acting on the lower cover plate 10 is 0 at the moment), the spring force P3 is larger than the sum of the pressure P2 born by the valve core 2, the force P1 on the lower cover plate 10 and the force P4 compressed by the expansion joint 7, namely, when P3 is more than P1+P2+P4, the spring force pushes the baffle 5 and the valve rod 3 to move upwards, the valve rod 3 drives the valve core 2 to move upwards, the sealing surface on the valve core 2 is in contact with the flow port on the valve body 1, contact sealing between the valve core 2 and the valve body 1 is realized, the valve is in a closed state at the moment, and the valve rod 3 moves upwards to push the expansion cavity 6 to be compressed;
when the valve is required to work, oxygen with certain pressure is filled into the expansion cavity 6 through an oxygen pipeline evaporated by liquid oxygen in the medical liquid oxygen storage tank, the sum of the acting force P1 born by the lower cover plate 10 and the force P4 compressed by the expansion joint 7 is larger than the force P2 and the spring force P3 acted on the valve core 2 by fluid, namely, P1+P4 > P2+P3, when the expansion joint 7 straightens, the valve rod 3 is pushed to drive the valve core 2 to move downwards, and the valve core 2 (the sealing surface on the valve core 2 is separated from the sealing surface on the valve body 1) is in contact, so that the valve is opened to work normally.
A third embodiment of the present utility model proposes a cryogenic valve driven by oxygen, and on the basis of any of the above embodiments, the elastic member 4 is a spring, and the valve stem 3 passes through the spring without contact.
In this embodiment, the elastic member 4 is a spring. The valve stem 3 is connected to the lower cover plate 10 after passing through the inside of the spring.
A fourth embodiment of the present utility model proposes a cryogenic valve driven by oxygen, and on the basis of any of the above embodiments, the lower cover plate 10 is fixedly connected to the end of the valve stem 3.
In this embodiment, the lower cover plate 10 and the valve rod 3 are limited to be fixedly connected, so that the connection force of the lower cover plate and the valve rod 3 is improved, and the valve rod 3 is prevented from falling off accidentally.
A fifth embodiment of the present utility model proposes a cryogenic valve driven by oxygen, and on the basis of any of the above embodiments, the lower cover plate 10 is detachably connected to the end of the valve stem 3.
In this embodiment, the lower cover plate 10 and the valve stem 3 are defined to be detachably connected. Specifically, an installation thread counter bore can be formed on the lower cover plate 10, and external threads are formed at the end part of the valve rod 3, so that threaded connection is realized between the lower cover plate and the valve rod, and the installation and the disassembly of the whole structure are convenient.
A sixth embodiment of the present utility model proposes a cryogenic valve driven by oxygen, and on the basis of any of the above embodiments, the housing of the expansion joint 7 is provided with a mounting structure for connecting with an external connection and maintaining a fixed state.
In the present embodiment, a mounting structure may be added to the housing of the expansion joint 7. The mounting structure can be a bolt structure and is connected with an external connector in a bolt connection mode, so that the fixation and stability of the expansion assembly are ensured.
In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (7)
1. A cryogenic valve employing oxygen actuation, comprising:
a valve body (1), wherein a first channel (101) and a second channel (102) for liquid oxygen or oxygen circulation are formed in the valve body (1), and the first channel (101) and the second channel (102) are communicated through a circulation port;
a valve core (2) positioned at the flow port;
a valve rod (3), one end of which is connected with the valve core (2) and the other end of which penetrates through the valve body (1);
an elastic piece (4), one end of which is arranged on the outer wall surface of the valve body (1), the other end of which is connected with a baffle (5), and the valve rod (3) passes through the elastic piece (4);
the expansion assembly at least comprises an expansion cavity (6) for filling oxygen, the expansion cavity is communicated with the oxygen evaporated by the liquid oxygen in the medical liquid oxygen storage tank through a pipeline, so that the oxygen can enter the expansion cavity through the pipeline, at least part of the expansion assembly is connected with the other end of the valve rod (3) to drive the valve rod (3) to move and drive the valve core (2) to close or open a circulation port.
2. The cryogenic valve of claim 1, wherein the expansion assembly further comprises:
an expansion joint (7), wherein the expansion cavity (6) is formed in the expansion joint (7);
the upper cover plate (8) is arranged on the upper end surface of the expansion joint (7) and is fixedly connected with the shell of the expansion joint (7);
an air inlet (9) formed in the upper cover plate (8) to ensure the delivery of oxygen to the expansion chamber (6);
the lower cover plate (10) is arranged on the lower end face of the expansion joint (7), and the lower end face of the lower cover plate (10) is connected with the other end of the valve rod (3);
the lower cover plate (10), the upper cover plate (8) and the expansion joint form an expansion cavity (6).
3. The cryogenic valve with oxygen actuation according to claim 2, characterized in that the elastic element (4) is a spring and the valve stem (3) passes through the spring without contact.
4. A cryogenic valve according to claim 3, wherein the lower cover plate (10) is fixedly connected to the end of the valve stem (3).
5. A cryogenic valve according to claim 3, wherein the lower cover plate (10) is detachably connected to the end of the valve stem (3).
6. The cryogenic valve with oxygen actuation according to any one of claims 2 to 5, characterized in that the housing (11) of the expansion joint (7) is provided with a mounting structure for connection with external connections and maintaining a fixed state.
7. The oxygen-driven cryogenic valve of claim 6, wherein the upper cover plate (8), the lower cover plate (10) are in sealing connection with the expansion joint (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222328540.5U CN219035580U (en) | 2022-08-31 | 2022-08-31 | Adopt oxygen driven low temperature valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222328540.5U CN219035580U (en) | 2022-08-31 | 2022-08-31 | Adopt oxygen driven low temperature valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219035580U true CN219035580U (en) | 2023-05-16 |
Family
ID=86315721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222328540.5U Active CN219035580U (en) | 2022-08-31 | 2022-08-31 | Adopt oxygen driven low temperature valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219035580U (en) |
-
2022
- 2022-08-31 CN CN202222328540.5U patent/CN219035580U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100460731C (en) | Vacuum low-temperature ball valve | |
| CN219035580U (en) | Adopt oxygen driven low temperature valve | |
| CN211371427U (en) | Gas valve of wireless monitoring | |
| CN207131931U (en) | A kind of big flow pressure reducer | |
| CN215257891U (en) | Electronic expansion valve | |
| CN214500878U (en) | Hydrogen storage device combination valve for moving object | |
| CN112049947B (en) | Valve structure and liquid engine | |
| CN204805573U (en) | Starting and stopping mechanism of little torque control valve, stop valve | |
| CN2888206Y (en) | Vacuum low-temperature ball valve | |
| CN116557597A (en) | Pressure release ventilation assembly for combined positive and negative pressure installation | |
| CN113063001A (en) | Multifunctional low-pressure integrated valve and control method thereof | |
| CN220910538U (en) | Diaphragm valve with locking device | |
| CN107477191B (en) | A kind of spacecraft liquid alkali metal valve | |
| CN220771445U (en) | Hydrojet expansion valve | |
| CN113593832B (en) | Oil-filling device and oil-filling method for oil-immersed transformer | |
| CN220688311U (en) | Multiple sealing valve for supercritical power station | |
| CN219933067U (en) | Axial flow type pressure flow regulating valve | |
| CN220622788U (en) | Pneumatic control valve suitable for positive and negative air tightness detection | |
| CN111637248B (en) | Valve and pipeline based on valve core deformation | |
| CN217583195U (en) | Electric stop valve | |
| CN219413603U (en) | Pneumatic fluid control valve | |
| CN215831231U (en) | Check valve for pump | |
| CN212643211U (en) | One-way back pressure explosion-proof valve | |
| CN219975556U (en) | Electric regulating valve of motor lower cover rotation preventing structure | |
| CN219452985U (en) | High-voltage sealing switch |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |