CN215172339U - Automatic exhaust valve and recovery system suitable for low-temperature liquid transportation - Google Patents
Automatic exhaust valve and recovery system suitable for low-temperature liquid transportation Download PDFInfo
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- CN215172339U CN215172339U CN202121072088.XU CN202121072088U CN215172339U CN 215172339 U CN215172339 U CN 215172339U CN 202121072088 U CN202121072088 U CN 202121072088U CN 215172339 U CN215172339 U CN 215172339U
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Abstract
The utility model relates to an automatic exhaust valve technical field. The automatic exhaust valve comprises a liquid inlet valve, a floating ball switch valve and a low-temperature check valve, wherein a pipeline interface communicated with a liquid conveying pipeline is arranged at one end of the liquid inlet valve, the other end of the liquid inlet valve is communicated with an inlet of the floating ball switch valve, an outlet of the floating ball switch valve is communicated with one end of the low-temperature check valve, and the other end of the low-temperature check valve is communicated to the outside. The utility model can realize the working state switching of the automatic exhaust valve by arranging the liquid inlet valve in front of the inlet of the floating ball switch valve; and the low-temperature check valve is arranged at the outlet of the floating ball switch valve, so that the phenomenon of water condensation caused by air backflow is prevented, and the automatic exhaust valve is prevented from being damaged.
Description
Technical Field
The utility model relates to an exhaust valve, more specifically relates to an automatic exhaust valve and recovery system suitable for cryogenic liquids transportation.
Background
When the low-temperature liquid medium is transported through the pipeline, gas is generated inside the pipeline due to the change of parameters such as pressure, temperature and the like, so that the transportation is influenced, and the purity of the liquid medium is reduced. In the prior art, an automatic exhaust valve is generally adopted to solve the problem of gas generation inside a pipeline. However, when the user end does not continuously use the cryogenic liquid, the existing automatic exhaust valve cannot close the liquid inlet, thereby causing the waste of the cryogenic liquid. In addition, when the storage tank of the low-temperature liquid is closed and the automatic exhaust valve is still in a working state, air is easy to flow back to enter the automatic exhaust valve after the gas in the pipeline is exhausted, so that the occurrence of water condensation is caused, and the automatic exhaust valve is seriously damaged.
SUMMERY OF THE UTILITY MODEL
To the problem, the utility model provides an automatic exhaust valve and recovery system has changeable operating condition and prevents the advantage of air refluence.
The technical scheme of the utility model is that:
the automatic exhaust valve suitable for low-temperature liquid transportation comprises a liquid inlet valve, a floating ball switch valve and a low-temperature check valve, wherein a pipeline interface communicated with a liquid conveying pipeline is arranged at one end of the liquid inlet valve, the other end of the liquid inlet valve is communicated with an inlet of the floating ball switch valve, an outlet of the floating ball switch valve is communicated with one end of the low-temperature check valve, and the other end of the low-temperature check valve is communicated to the outside.
The utility model discloses a theory of operation does: when low-temperature liquid is conveyed, the pipeline interface of the automatic exhaust valve is connected with a high point of a liquid conveying pipeline, when the automatic exhaust valve is in a low-temperature liquid conveying state, a liquid inlet valve is opened, the automatic exhaust valve is in a working state, when liquid reaches the highest position of a floating ball switch valve, a floating ball is jacked up due to the buoyancy of the liquid, an exhaust switch of the floating ball switch valve is automatically closed, the liquid can not be discharged, when the liquid is used or more gas is generated inside a pipeline, the liquid level in the floating ball switch valve is low, so that the buoyancy is insufficient, the floating ball switch valve automatically opens the exhaust switch again, and the gas is discharged; when the low-temperature liquid in the pipeline stops conveying, the liquid inlet valve is closed, and the automatic exhaust valve is in a closed state; in addition, when the low-temperature liquid in the pipeline stops being conveyed and the liquid inlet valve is not closed, the low-temperature check valve communicated with the outlet of the floating ball switch valve prevents the air from flowing backwards, and the phenomenon of water condensation is avoided to damage equipment.
Compared with the prior art, the utility model has the advantages that the working state switching of the automatic exhaust valve can be realized by arranging the liquid inlet valve in front of the inlet of the floating ball switch valve; and the low-temperature check valve is arranged at the outlet of the floating ball switch valve, so that the phenomenon of water condensation caused by air backflow is prevented, and the automatic exhaust valve is prevented from being damaged.
In a further technical scheme, the liquid inlet valve is a vacuum heat insulation stop valve.
The liquid inlet valve is arranged as a vacuum heat insulation stop valve, so that the copious cooling medium in the pipe can not be cooled to cause frosting of the pipeline, and the valve can not be polluted by water inflow of the valve due to the external humid environment.
In a further technical scheme, the liquid inlet valve is an electric liquid inlet valve.
Through setting up the feed liquor valve into electronic feed liquor valve, can realize the automatic control of feed liquor valve, in addition, because of automatic exhaust valve's mounted position is comparatively special usually, and the manual work is difficult to reach sometimes even, consequently, sets up the feed liquor valve into electronic feed liquor valve with greatly reduced operation degree of difficulty.
In a further technical scheme, the low-temperature check valve is communicated with the outside through a first pipeline, the outer wall of the first pipeline is wrapped by a heat-insulating material, and the outlet of the first pipeline faces downwards.
Wrap up first pipeline by the heat preservation material, effectively prevent that the condensation gas from appearing the water congealing phenomenon and damaging the pipeline when going out the pipeline to set up the export of first pipeline for down, in order to avoid blockking up exhaust passage.
The utility model discloses an on the other hand provides a condensation gas recovery system, including the cryogenic liquids storage tank that communicates in order, as above automatic exhaust valve and recovery container suitable for cryogenic liquids transportation.
Through with the cryogenic liquids storage tank the utility model discloses an automatic exhaust valve and recovery container connect in order, realize the recovery of condensation gas, can be used for effects such as the product is fresh-keeping, realize the cyclic utilization of material.
The utility model has the advantages that:
1. the utility model can realize the working state switching of the automatic exhaust valve by arranging the liquid inlet valve in front of the inlet of the floating ball switch valve; a low-temperature check valve is arranged at the outlet of the floating ball switch valve, so that the phenomenon of water condensation caused by air backflow is prevented, and the automatic exhaust valve is prevented from being damaged;
2. the liquid inlet valve is set as a vacuum heat insulation stop valve, so that the cryogenic medium in the pipe can not be radiated to cause the frosting of the pipeline, and the valve can not be polluted by water inlet of the valve due to the external humid environment;
3. the automatic control of the liquid inlet valve can be realized by setting the liquid inlet valve as the electric liquid inlet valve, and in addition, the installation position of the automatic exhaust valve is usually special and sometimes even difficult to reach manually, so the operation difficulty is greatly reduced by setting the liquid inlet valve as the electric liquid inlet valve;
4. the first pipeline is wrapped by a heat insulation material, so that the pipeline is effectively prevented from being damaged due to the water condensation phenomenon when condensed gas is discharged from the pipeline, and the outlet of the first pipeline is arranged to face downwards so as to avoid blocking an exhaust channel;
5. through with the cryogenic liquids storage tank the utility model discloses an automatic exhaust valve and recovery container connect in order, realize the recovery of condensation gas, can be used for effects such as the product is fresh-keeping, realize the cyclic utilization of material.
Drawings
Fig. 1 is a schematic structural diagram of an automatic exhaust valve suitable for cryogenic liquid transportation according to an embodiment of the present invention;
fig. 2 is a partial sectional view of a in fig. 1.
Description of reference numerals:
10-a liquid inlet valve; 11-a line interface; 12-a handle; 13-a push rod; 14-a barrier; 20-a float switch valve; 30-low temperature check valve; 40-a first conduit; 50-liquid delivery conduit.
Detailed Description
The embodiments of the present invention will be further explained with reference to the drawings.
Example (b):
referring to fig. 1 and 2, an automatic exhaust valve for transporting cryogenic liquids includes a liquid inlet valve 10, a float switch valve 20 and a cryogenic check valve 30, wherein a pipeline port 11 communicated with a liquid conveying pipeline 50 is disposed at one end of the liquid inlet valve 10, the other end of the liquid inlet valve 10 is communicated with an inlet of the float switch valve 20, an outlet of the float switch valve 20 is communicated with one end of the cryogenic check valve 30, and the other end of the cryogenic check valve 30 is communicated with the outside. For example, the liquid inlet valve 10 includes a handle 12, a push rod 13 and a blocking portion 14 connected in sequence from top to bottom, the upper portion of the push rod 13 is provided with a thread adapted to the inside of the upper side pipeline of the liquid inlet valve 10, and the blocking portion 14 is connected with the inner wall of the pipeline interface 11 in a sliding and sealing manner.
The utility model discloses a theory of operation does: when low-temperature liquid is conveyed, the pipeline interface 11 of the automatic exhaust valve of the utility model is connected with a high point of the liquid conveying pipeline 50, when the automatic exhaust valve is in a low-temperature liquid conveying state, the liquid inlet valve 10 is opened, the automatic exhaust valve is in a working state, when the liquid reaches the highest position of the float switch valve 20, the float ball is jacked up due to the buoyancy of the liquid, the exhaust switch of the float switch valve 20 is automatically closed, the liquid can not be discharged, when the liquid is used or more gas is generated in the pipeline, the liquid level in the float switch valve 20 is low, so that the buoyancy is insufficient, the exhaust switch is automatically opened again by the float switch valve 20, and the gas is discharged; when the low-temperature liquid in the pipeline stops conveying, the liquid inlet valve 10 is closed, and the automatic exhaust valve is in a closed state; in addition, when the low-temperature liquid in the pipeline stops being conveyed and the liquid inlet valve 10 is not closed, the low-temperature check valve 30 communicated with the outlet of the float switch valve 20 prevents the air from flowing backwards, and avoids the phenomenon of water condensation to damage equipment.
Compared with the prior art, the utility model has the advantages that the working state switching of the automatic exhaust valve can be realized by arranging the liquid inlet valve 10 in front of the inlet of the floating ball switch valve 20; and the low-temperature check valve 30 is arranged at the outlet of the floating ball switch valve 20, so that the phenomenon of water condensation caused by air backflow is prevented, and the automatic exhaust valve is prevented from being damaged.
In another embodiment, the liquid inlet valve 10 is a vacuum insulated shut-off valve. The liquid inlet valve 10 is set as a vacuum heat insulation stop valve, so that the copious cooling medium in the pipe can not be cooled to cause frosting of the pipeline, and the valve can not be polluted by water inlet of the valve due to the external humid environment.
In a further embodiment, the intake valve 10 is an electric intake valve. Through setting up feed liquor valve 10 into electronic feed liquor valve, can realize the automatic control of feed liquor valve 10, in addition, because of automatic exhaust valve's mounted position is comparatively special usually, and the manual work is difficult to reach sometimes even, consequently, sets up feed liquor valve 10 into electronic feed liquor valve with greatly reduced operation degree of difficulty.
In another embodiment, the low temperature check valve 30 communicates with the outside through a first pipeline 40, and the outer wall of the first pipeline 40 is wrapped by the insulation material and the outlet of the first pipeline faces downward. The first pipeline 40 is wrapped by a heat insulation material, so that the pipeline is effectively prevented from being damaged due to the water condensation phenomenon when condensed gas is discharged from the pipeline, and the outlet of the first pipeline 40 is arranged downwards so as to avoid blocking an exhaust channel.
The utility model discloses an on the other hand provides a condensation gas recovery system, including the cryogenic liquids storage tank that communicates in order, as above automatic exhaust valve and recovery container suitable for cryogenic liquids transportation. Through with the cryogenic liquids storage tank the utility model discloses an automatic exhaust valve and recovery container connect in order, realize the recovery of condensation gas, can be used for effects such as the product is fresh-keeping, realize the cyclic utilization of material.
The above-mentioned embodiments only express the specific embodiments of the present invention, and the description thereof is specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention.
Claims (5)
1. The automatic exhaust valve suitable for low-temperature liquid transportation is characterized by comprising a liquid inlet valve, a floating ball switch valve and a low-temperature check valve, wherein a pipeline interface communicated with a liquid conveying pipeline is arranged at one end of the liquid inlet valve, the other end of the liquid inlet valve is communicated with an inlet of the floating ball switch valve, an outlet of the floating ball switch valve is communicated with one end of the low-temperature check valve, and the other end of the low-temperature check valve is communicated to the outside.
2. The automatic exhaust valve for cryogenic liquid transportation according to claim 1, wherein the liquid inlet valve is a vacuum insulation stop valve.
3. The automatic exhaust valve for cryogenic liquid transportation according to claim 1, wherein the liquid inlet valve is an electric liquid inlet valve.
4. The automatic exhaust valve for the transportation of cryogenic liquids as claimed in claim 1, wherein said cryogenic check valve is connected to the outside through a first pipeline, the outer wall of said first pipeline is wrapped by thermal insulation material and the outlet of said first pipeline faces downward.
5. A condensed gas recovery system comprising a cryogenic liquid storage tank, an automatic vent valve for cryogenic liquid transport according to any one of claims 1 to 4, and a recovery vessel in serial communication.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121072088.XU CN215172339U (en) | 2021-05-18 | 2021-05-18 | Automatic exhaust valve and recovery system suitable for low-temperature liquid transportation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121072088.XU CN215172339U (en) | 2021-05-18 | 2021-05-18 | Automatic exhaust valve and recovery system suitable for low-temperature liquid transportation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215172339U true CN215172339U (en) | 2021-12-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121072088.XU Active CN215172339U (en) | 2021-05-18 | 2021-05-18 | Automatic exhaust valve and recovery system suitable for low-temperature liquid transportation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215172339U (en) |
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2021
- 2021-05-18 CN CN202121072088.XU patent/CN215172339U/en active Active
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