CN219673413U - Three-way valve for nitrogen sealing system - Google Patents
Three-way valve for nitrogen sealing system Download PDFInfo
- Publication number
- CN219673413U CN219673413U CN202321089713.0U CN202321089713U CN219673413U CN 219673413 U CN219673413 U CN 219673413U CN 202321089713 U CN202321089713 U CN 202321089713U CN 219673413 U CN219673413 U CN 219673413U
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- port
- pressure
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- positioning column
- valve
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims abstract description 70
- 229910052757 nitrogen Inorganic materials 0.000 title claims abstract description 35
- 238000007789 sealing Methods 0.000 title abstract description 9
- 238000005192 partition Methods 0.000 claims abstract description 21
- 230000007246 mechanism Effects 0.000 claims abstract description 11
- 239000012530 fluid Substances 0.000 claims description 8
- 230000001502 supplementing effect Effects 0.000 abstract description 9
- 238000000926 separation method Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000011344 liquid material Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
Abstract
The utility model provides a three-way valve for a nitrogen sealing system, which relates to a three-way valve, wherein the three-way valve for the nitrogen sealing system comprises: the valve body comprises a first port, a second port and a third port; the partition part extends into the second port from the middle part of the valve body, so that the first port, the partition part and the second port form an inlet channel, and the third port, the partition part and the second port form an output channel. The utility model is provided with the separation part to separate the first port from the third port to form the inlet channel and the outlet channel, and the inlet channel and the outlet channel are provided with the input on-off component and the output on-off component, so that the nitrogen supplementing and pressure releasing functions can be completed without an executing mechanism.
Description
Technical Field
The utility model relates to a three-way valve, in particular to a three-way valve for a nitrogen sealing system.
Background
The existing standard nitrogen sealing system (namely a nitrogen sealing system) consists of a pressure transmitter, two regulating valves and a control system, and the system has the advantages of complex structure, more parts, more equipment holes and higher cost. The pressure transmitter is used as a pressure detection element, one of the two regulating valves is used as a nitrogen supplementing valve, the other regulating valve is used as a pressure relief valve, and the control system adopts the step regulation. The pressure transmitter detects the pressure of the storage tank, when liquid is injected into the storage tank, the pressure in the storage tank rises, when the pressure is higher than the set pressure, the pressure relief valve is opened to relieve the pressure, the pressure in the storage tank is maintained, and the safety of the storage tank is prevented from being damaged due to the fact that the pressure of the storage tank is too high; when the storage tank discharges liquid outwards through a pump or other modes, the pressure in the storage tank is reduced, and when the pressure is lower than a set pressure, the nitrogen supplementing valve is opened, nitrogen is injected into the storage tank, the pressure in the storage tank is kept, and the safety of the storage tank is prevented from being damaged due to the fact that the pressure of the storage tank is too low; because of the partial pressure of nitrogen, the nitrogen plays a role in reducing volatilization of liquid materials in the storage tank.
Most of the existing three-way valves for nitrogen sealing drive valve cores through actuating mechanisms, so that the valve cores are switched on and off at three ports of the three-way valve, the use cost of the nitrogen sealing three-way valve with the actuating mechanisms is increased compared with that of the traditional three-way valve, and the maintenance rate and the repair rate are correspondingly higher.
Disclosure of Invention
In order to solve the above problems, the present utility model provides a three-way valve for a nitrogen seal system, comprising: the valve body comprises a first port, a second port and a third port;
a partition extending from a middle portion of the valve body into the second port such that the first port, the partition, and the second port form an inlet channel, and the third port, the partition, and the second port form an outlet channel;
the on-off mechanism comprises an input on-off component and an output on-off component, the input on-off component is arranged in the entering channel, the output on-off component is arranged in the output channel, when the pressure in the first port is larger than the pressure in the second port, the input on-off component opens the entering channel and is used for leading fluid unidirectionally from the first port to the second port through the entering channel, and when the pressure in the second port is larger than the pressure of the third port, the output on-off component opens the output channel and is used for unidirectionally leading the fluid from the second port to the third port through the output channel.
Optionally, the input on-off component includes first case, first reference column and first spring, be equipped with first via hole in the entering passageway, first case is used for the butt first via hole, sliding connection in the first case first reference column, the cover is established on the first reference column, when pressure in the first through-hole is greater than pressure in the second through-hole, first spring is compressed, so that first case is opened first via hole.
Optionally, the input on-off component further includes a first mounting piece, the first mounting piece is used for connecting the first reference column, just the first mounting piece is used for the butt first spring's one end, the other end of first spring is used for the butt on the first case.
Optionally, the output on-off component includes a second valve core, a second positioning column and a second spring, a second via hole is provided in the output channel, the second valve core is used for abutting against the second via hole, the second positioning column is slidingly connected in the second valve core, the second positioning column is sleeved on the second positioning column, when the pressure in the second port is greater than the pressure in the third port, the second spring is compressed, so that the second valve core opens the second via hole
Optionally, the angle adjustment assembly further comprises a driving device and a screw shaft, the driving device is arranged on the cylinder, an output shaft of the driving device is connected with one end of the screw shaft, the other end of the screw shaft extends along the axial direction of the cylinder and is rotationally connected to the inner bottom surface of the cylinder, and the screw shaft is in threaded connection with the sliding block.
Optionally, the output on-off component further includes a second mounting piece, the second mounting piece is used for connecting the second reference column, and the second mounting piece is used for abutting one end of the second spring, the other end of the second spring is used for abutting on the second valve core.
Optionally, the first mounting piece and the second mounting piece each include a bracket fixedly connected to the second port and the partition.
Optionally, a plurality of locking universal wheels are further installed on the lower surface of the supporting seat.
Compared with the prior art, the utility model has the following beneficial effects:
the first port and the third port are separated by the separating part to form an inlet channel and an outlet channel, and the inlet channel is provided with the input on-off component, so that the input on-off component can only lead fluid to the third port from the first port in one way, and when nitrogen is supplemented, the air pressure in the first port is larger than the air pressure in the second port, and the second port is communicated with the inside of the storage tank, namely the air pressure in the first port is larger than the air pressure in the storage tank, so that nitrogen is led to enter the storage tank through the inlet channel in one way until the air pressure in the storage tank reaches a preset value, the nitrogen supplementing is stopped, and the inlet channel is closed by the input on-off component; when the air pressure of the storage tank is larger than a preset value, that is to say, the air pressure in the second port is larger than the air pressure in the third port, the air pressure in the third port is the atmospheric pressure at the moment, the same as the nitrogen supplementing process is carried out, so that nitrogen enters the atmosphere through the output channel in one way, the pressure release is stopped until the air pressure in the storage tank reaches the preset value, at the moment, the output on-off component closes the output channel, and the nitrogen supplementing and pressure release functions can be completed without an executing mechanism.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present utility model;
FIG. 2 is a partial cross-sectional view of an embodiment of the present utility model;
fig. 3 is an enlarged view of the structure at a in fig. 2.
Reference numerals illustrate:
1. a valve body; 11. a first port; 12. a second port; 13. a third port; 14. a partition portion; 15. entering the channel; 16. an output channel; 2. an on-off mechanism; 21. an input on-off component; 211. a first valve core; 212. a first positioning column; 213. a first spring; 214. a first mounting member; 215. a first via; 22. an output on-off part; 221. a second valve core; 222. a second positioning column; 223. a second spring; 224. a second mounting member; 225. and a second via.
Detailed Description
In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art. In the present specification, "plurality" means two or more.
In the description of the present specification, the descriptions of the terms "embodiment," "one embodiment," and the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or embodiment is included in at least one embodiment or illustrated embodiment of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same examples or implementations. Furthermore, the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or implementations.
Referring to fig. 1 to 3, an embodiment of the present utility model provides a three-way valve for a nitrogen seal system (hereinafter referred to as a safety management device), including:
a valve body 1, wherein the valve body 1 comprises a first port 11, a second port 12 and a third port 13;
a partition 14, the partition 14 extending from a middle portion of the valve body 1 into the second port 12 such that the first port 11, the partition 14, and the second port 12 form an inlet channel 15, and the third port 13, the partition 14, and the second port 12 form an outlet channel 16;
the on-off mechanism 2, the on-off mechanism 2 includes an input on-off component 21 and an output on-off component 22, the input on-off component 21 is disposed in the inlet channel 15, the output on-off component 22 is disposed in the output channel 16, when the pressure in the first port 11 is greater than the pressure in the second port 12, the input on-off component 21 opens the inlet channel 15 and is used for unidirectionally introducing fluid from the first port 11 to the second port 12 through the inlet channel 15, and when the pressure in the second port 12 is greater than the pressure in the third port 13, the output on-off component 22 opens the output channel 16 and is used for unidirectionally introducing fluid from the second port 12 to the third port 13 through the output channel 16.
The second port 12 is communicated with the top of the tank, the first port 11 is used for supplementing nitrogen into the tank, and the third port 13 is used for releasing pressure and discharging gas in the tank.
In this embodiment, the partition portion 14 is provided to partition the first port 11 from the third port 13 to form the inlet channel 15 and the outlet channel 16, and the inlet channel 15 is provided with the input on-off component 21, so that the input on-off component 21 can only pass the fluid unidirectionally from the first port 11 to the third port 13, and when the nitrogen is replenished, the air pressure in the first port 11 is greater than the air pressure in the second port 12, and the second port 12 is communicated with the interior of the storage tank, that is, the air pressure in the first port 11 is greater than the air pressure in the storage tank, so that the nitrogen unidirectionally passes through the inlet channel 15 to enter the storage tank until the air pressure in the storage tank reaches the preset value, and then the inlet channel 15 is closed by the input on-off component 21;
when the air pressure of the storage tank is greater than a preset value, that is, the air pressure in the second port 12 is greater than the air pressure in the third port 13, the air pressure in the third port 13 is the atmospheric pressure at the moment, and the same is the same as the nitrogen supplementing, so that nitrogen enters the atmosphere through the output channel 16 in one way, and the pressure release is stopped until the air pressure in the storage tank reaches the preset value, at the moment, the output on-off component 22 closes the output channel 16, and the functions of nitrogen supplementing and pressure release can be completed without an executing mechanism.
Optionally, the input on-off component 21 includes a first valve core 211, a first positioning column 212, and a first spring 213, a first through hole 215 is disposed in the inlet channel 15, the first valve core 211 is used for abutting against the first through hole 215, the first valve core 211 is slidably connected with the first positioning column 212, the first positioning column 212 is sleeved on the first positioning column 212, when the pressure in the first through hole 11 is greater than the pressure in the second through hole 12, the first spring 213 is compressed, so that the first valve core 211 opens the first through hole 215, the input on-off component 21 further includes a first mounting member 214, the first mounting member 214 is used for connecting with the first positioning column 212, and the first mounting member 214 is used for abutting against one end of the first spring 213, and the other end of the first spring 213 is used for abutting against the first valve core 211.
Specifically, the first valve core 211 is provided with a sliding hole for sliding the first positioning column 212, and when the pressure of the space above the first through hole 215 is greater than the pressure of the space below the first through hole 215, the first valve core 211 moves downward and compresses the first spring 213, so that the gas passes from top to bottom.
Optionally, the output on-off component 22 includes a second valve core 221, a second positioning column 222, and a second spring 223, a second through hole 225 is disposed in the output channel 16, the second valve core 221 is used for abutting against the second through hole 225, the second valve core 221 is slidably connected with the second positioning column 222, the second positioning column 222 is sleeved on the second positioning column 222, when the pressure in the second port 12 is greater than the pressure in the third port 13, the second spring 223 is compressed, so that the second valve core 221 opens the second through hole 225, the output on-off component 22 further includes a second mounting member 224, the second mounting member 224 is used for connecting with the second positioning column 222, and the second mounting member 224 is used for abutting against one end of the second spring 223, and the other end of the second spring 223 is used for abutting against the second valve core 221.
Specifically, the second valve core 221 is provided with a sliding hole for sliding the second positioning column 222, and when the pressure of the space above the second through hole 225 is greater than that of the space below the second through hole 225, the second valve core 221 moves downwards and compresses the second spring 223, so that the gas passes through from bottom to top.
Optionally, the first mounting member 214 and the second mounting member 224 each include a bracket fixedly coupled to the second port 12 and the partition 14.
Specifically, one end of the bracket may be welded to a side of the partition 14, and the other end of the bracket may be welded to a corresponding inner sidewall of the second port 12, so that the first and second positioning posts 212 and 222 are supported in the second port 12.
Although the present disclosure is described above, the scope of protection of the present disclosure is not limited thereto. Various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the disclosure, and these changes and modifications will fall within the scope of the utility model.
Claims (6)
1. A three-way valve for a nitrogen seal system, comprising:
the valve comprises a valve body (1), wherein the valve body (1) comprises a first port (11), a second port (12) and a third port (13);
a partition (14), the partition (14) extending from the middle of the valve body (1) into the second port (12) such that the first port (11), the partition (14) and the second port (12) form an inlet channel (15), and the third port (13), the partition (14) and the second port (12) form an outlet channel (16);
the on-off mechanism (2), on-off mechanism (2) includes input on-off part (21) and output on-off part (22), input on-off part (21) are located in entering passageway (15), output on-off part (22) are located output passageway (16), when pressure in first opening (11) is greater than pressure in second opening (12), input on-off part (21) open entering passageway (15) and are used for leading into second opening (12) with fluid unidirectionally from first opening (11) through entering passageway (15), when pressure in second opening (12) is greater than pressure in third opening (13), output on-off part (22) open output passageway (16) and are used for leading into third opening (13) with fluid unidirectionally from second opening (12) through output passageway (16).
2. The three-way valve for the nitrogen seal system according to claim 1, wherein the input on-off component (21) comprises a first valve core (211), a first positioning column (212) and a first spring (213), a first through hole (215) is arranged in the inlet channel (15), the first valve core (211) is used for abutting against the first through hole (215), the first positioning column (212) is connected in the first valve core (211) in a sliding manner, the first positioning column (212) is sleeved on the first positioning column (212), and when the pressure in the first through hole (11) is larger than the pressure in the second through hole (12), the first spring (213) is compressed, so that the first valve core (211) opens the first through hole (215).
3. The three-way valve for a nitrogen seal system according to claim 2, wherein the input on-off part (21) further comprises a first mounting member (214), the first mounting member (214) is used for connecting the first positioning column (212), the first mounting member (214) is used for abutting one end of the first spring (213), and the other end of the first spring (213) is used for abutting the first valve core (211).
4. A three-way valve for a nitrogen seal system according to claim 3, wherein the output on-off component (22) comprises a second valve core (221), a second positioning column (222) and a second spring (223), a second through hole (225) is arranged in the output channel (16), the second valve core (221) is used for abutting against the second through hole (225), the second positioning column (222) is slidingly connected in the second valve core (221), the second positioning column (222) is sleeved on the second positioning column (222), and when the pressure in the second port (12) is greater than the pressure in the third port (13), the second spring (223) is compressed, so that the second valve core (221) opens the second through hole (225).
5. The three-way valve for a nitrogen seal system according to claim 4, wherein the output on-off member (22) further includes a second mount (224), the second mount (224) is used for connecting the second positioning column (222), and the second mount (224) is used for abutting one end of the second spring (223), and the other end of the second spring (223) is used for abutting on the second valve element (221).
6. The three-way valve for a nitrogen seal system according to claim 5, wherein the first mounting member (214) and the second mounting member (224) each comprise a bracket fixedly connected to the second port (12) and the partition (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321089713.0U CN219673413U (en) | 2023-05-08 | 2023-05-08 | Three-way valve for nitrogen sealing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321089713.0U CN219673413U (en) | 2023-05-08 | 2023-05-08 | Three-way valve for nitrogen sealing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219673413U true CN219673413U (en) | 2023-09-12 |
Family
ID=87896967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321089713.0U Active CN219673413U (en) | 2023-05-08 | 2023-05-08 | Three-way valve for nitrogen sealing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219673413U (en) |
-
2023
- 2023-05-08 CN CN202321089713.0U patent/CN219673413U/en active Active
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