CN218993087U - Device for long-distance gas conveying in low-temperature environment - Google Patents
Device for long-distance gas conveying in low-temperature environment Download PDFInfo
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- CN218993087U CN218993087U CN202320136889.0U CN202320136889U CN218993087U CN 218993087 U CN218993087 U CN 218993087U CN 202320136889 U CN202320136889 U CN 202320136889U CN 218993087 U CN218993087 U CN 218993087U
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Abstract
The utility model relates to a device for conveying gas in a low-temperature environment for a long distance, which comprises a gas conveying pipe (1), a booster pump (2) and a drainage device (3), wherein the booster pump (2) is arranged on the gas conveying pipe (1) and is positioned at the gas supply end of the gas conveying pipe (1). The drainage device (3) comprises a vent pipe (31), a drain pipe (33), a water collecting pipe (32) and a drain valve (34), wherein the water collecting pipe (32) is of a U-shaped structure, the water collecting pipe is arranged below the vent pipe (31), openings of the U-shaped structure are upward, two ends of the water collecting pipe are respectively communicated with two ends of the vent pipe (31), the drain pipe (33) is of a U-shaped structure, the water collecting pipe is arranged below the water collecting pipe (32), the openings of the U-shaped structure are upward, the two ends of the water collecting pipe are connected with a transverse pipe (38) of the water collecting pipe and are communicated, and the drain valve (34) is arranged on the drain pipe (33) and is positioned on a transverse pipe (39) of the drain pipe. The device can drain the condensed water in the pipeline, and solves the problem that the condensed water in the pipeline is frozen when the gas is conveyed at low temperature and long distance.
Description
Technical Field
The utility model relates to the technical field of gas conveying, in particular to a device for conveying gas in a low-temperature environment for a long distance.
Background
Various gases such as natural gas, compressed air, nitrogen, oxygen and the like can be used in production and life, and the gases are usually conveyed by using pipelines, so that the transportation cost can be greatly saved by pipeline conveying. However, in the process of collecting and producing gas, water vapor is difficult to avoid being mixed, when the lowest air temperature reaches minus 30 ℃ in northwest and northeast regions of China and the gas is conveyed for a long distance at a low temperature, water in the gas forms condensed water, the condensed water freezes in a pipeline, the circulation capacity of the pipeline is reduced, and the air pressure and the flow rate of an air supply end and an air utilization end can be greatly fluctuated. For example, natural gas, if the gas pressure and flow rate change, the gas storage pressure is increased to the gas supply end, so that the gas supply equipment generates excessive load, and dangers are caused. For the gas end, the gas supply amount is unstable or insufficient, the production system is stopped in industrial production, and gas equipment such as heating, catering and the like is stopped in life, so that the life can be influenced.
When the temperature is low in winter, stable gas delivery is an important factor affecting normal production of factories and normal life of people. In the prior art, heat insulation materials are generally wrapped outside a gas pipeline to prevent the pipeline from freezing out and icing in the pipeline, but the method has limited heat insulation effect when the air temperature is low, and has good effect of preventing the pipeline from freezing out and unsatisfactory effect of preventing the pipeline from icing in.
The utility model provides a device for long-distance gas conveying in a low-temperature environment, which solves the problem that the pressure and flow of gas conveying fluctuate due to icing of condensed water in a pipeline when the gas is conveyed in a low-temperature long-distance mode.
Disclosure of Invention
In order to solve the above problems, the present utility model provides a device for long distance gas transportation in low temperature environment, comprising a gas pipe 1, a booster pump 2 and a water draining device 3 arranged on the gas pipe 1, wherein the booster pump 2 is arranged on the gas pipe 1 and is positioned at the gas supply end of the gas pipe 1. The drain 3 includes a breather pipe 31, a drain pipe 33, a water collecting pipe 32, and a drain valve 34. The water collecting pipe 32 is of a U-shaped structure and is arranged below the vent pipe 31, the opening of the U-shaped structure of the water collecting pipe 32 faces upwards, two ends of the U-shaped structure are respectively connected and communicated with two ends of the vent pipe 31, and an air inlet 35 and an air outlet 36 are respectively formed at the joint of the water collecting pipe 32 and the vent pipe 31. The drain pipe 33 has a U-shaped structure, is arranged below the water collecting pipe 32, has an upward opening, and has both ends connected and communicated with the transverse pipe 38 of the water collecting pipe. Drain valve 34 is disposed on drain pipe 33 and is positioned on a cross pipe 39 of the drain pipe.
The utility model is used for the device of the low-temperature environment long distance conveying gas, boost the pressure of the gas through the booster pump 2, make the gas flow from the air supply end of the air pipe 1 to the air utilization end, set up the drain device 3 on the air pipe 1, including breather pipe 31, drain pipe 33, collecting pipe 32 and drain valve 34, the breather pipe 31 is used for conveying the gas, the collecting pipe 32 is used for gathering the condensed water in the air pipe 1, set up the collecting pipe 32 to be U-shaped structure, the opening of the U-shaped structure of the collecting pipe 32 is upwards, set up under breather pipe 31, both ends are connected and communicated with both ends of the breather pipe 31 separately, can make the condensed water in the air pipe 1 flow into the collecting pipe 32 under the action of gravity while flowing into the drain device 3, collect in the horizontal pipe 38 of the collecting pipe.
The drain pipe 33 is of a U-shaped structure and is positioned below the water collecting pipe 32, the opening of the U-shaped structure of the drain pipe 33 is upward, two ends of the drain pipe are connected and communicated with the transverse pipe 38 of the water collecting pipe, condensed water collected in the transverse pipe 38 of the water collecting pipe can flow into the drain pipe 33, the transverse pipe 39 of the drain pipe is of a downward bent arc shape, the drain valve 34 is arranged at the lowest position of the transverse pipe 39 of the drain pipe, the condensed water in the drain pipe 33 can be discharged through the drain valve 34, and the condensed water is prevented from freezing in the pipeline. The problem that when the gas is conveyed in a long-distance pipeline in a cold environment, condensed water in the gas condenses ice in the pipeline to cause fluctuation of pressure and flow of the gas at two ends of gas supply and gas use can be solved.
Preferably, the device further comprises a stop valve 37, and the stop valve 37 is provided with two; two stop valves 37 are respectively arranged on the water collecting pipe 32 and are positioned at two sides of the joint of the water discharging pipe 33 and the water collecting pipe 32.
By arranging two stop valves 37 on the water collecting pipe 32 on two sides of the joint of the water discharging pipe 33 and the water collecting pipe 32, the air flow speed can be limited by the stop valves 37, so that condensed water in the transverse pipe 38 of the water collecting pipe can flow into the water discharging pipe 33 more easily, and can be prevented from flowing into the air conveying pipe 1 along with the air flow.
Preferably, the breather pipe 31 has a U-shaped structure, the opening of the U-shaped structure of the breather pipe 31 is downward, and two ends of the U-shaped structure are respectively connected and communicated with two ends of the water collecting pipe 32.
Through setting up breather pipe 31 to U-shaped structure, the opening of the U-shaped structure of breather pipe 31 is downward, and both ends are connected and communicate with the both ends of collector pipe 32 respectively, can be when the comdenstion water gets into drainage device 3 in, flow into collector pipe 32 under the effect of gravity, prevent that the comdenstion water from blowing into in the breather pipe 31 under the air current drive in the back, continue by the air current in the air pipe 1 of comingling in and going out.
Preferably, the cross pipe 39 of the drain pipe is in a downward bent arc shape, and the drain valve 34 is arranged at the lowest position of the cross pipe 39 of the drain pipe.
By arranging the cross pipe 39 of the drain pipe in a downward bending arc shape, condensed water in the drain pipe 33 is collected at the lowest position of the cross pipe 39 of the drain pipe, and the drain valve 34 is arranged at the lowest position of the cross pipe 39 of the drain pipe, so that the condensed water in the drain pipe 33 can be discharged through the drain valve 34.
Preferably, the self-cleaning gas pump also comprises a self-cleaning gas filter 4, wherein the self-cleaning gas filter 4 is arranged at the gas supply end of the gas pipe 1 and is connected with the booster pump 2. The gas self-cleaning filter 4 is used to filter impurities in the gas, such as dust, mechanical debris, etc.
Preferably, the air delivery pipe 1 is provided with a water discharge device 3 at intervals of 1000 m. A drainage device 3 is arranged on the air pipe 1 at intervals of 1000m, so that condensed water in the air pipe 1 can be timely drained.
Preferably, the water draining device further comprises a heat preservation device 5, wherein the heat preservation device 5 comprises a box body 51, a solar panel 52, a storage battery 53, a heating plate 54, a thermometer 55 and a control system 56, and the box body 51 is square and sleeved outside the water draining device 3. The solar cell panel 52 is arranged on the outer wall of the box body 51, the storage battery 53 is arranged in the box body 51 and is electrically connected with the solar cell panel 52, the heating sheet 54 is arranged in the box body 51 and is electrically connected with the storage battery 53, the thermometer 55 is arranged in the box body 51, and the control system 56 is arranged in the box body 51 and is electrically connected with the storage battery 53, the heating sheet 54 and the thermometer 55 respectively.
Through setting up heat preservation device 5 and including box 51, solar cell panel 52, battery 53, heating plate 54, thermometer 55 and control system 56, locate the box 51 cover outside the drainage device 3, solar cell panel 52 can collect solar energy conversion production electric energy, and the electric energy of solar cell panel 52 production can be stored to battery 53, and heating plate 54 sets up in box 51, can heat box 51 inner space, and thermometer 55 can detect the temperature of box 51 inner space. The control system 56 can automatically control the heating and heat preservation of the inside of the tank body 51, and prevent the condensed water in the drainage device 3 from being frozen and being unable to be discharged.
Drawings
FIG. 1 is a schematic diagram of an apparatus for transporting gas over long distances in a low temperature environment;
FIG. 2 is a schematic view of a drainage device;
FIG. 3 is a schematic view of the installation of the thermal insulation device and the drainage device;
FIG. 4 is a schematic diagram of another apparatus for transporting gas over long distances in a low temperature environment.
In the figure, 1, a gas transmission pipe, 2, a booster pump, 3, a drainage device, 31, a vent pipe, 32, a water collecting pipe, 33, a drain pipe, 34, a drain valve, 35, a gas inlet, 36, a gas outlet, 37, a stop valve, 38, a cross pipe of the water collecting pipe, 39, a cross pipe of the drain pipe, 4, a gas self-cleaning filter, 5, a heat preservation device, 51, a box body, 52, a solar panel, 53, a storage battery, 54, a heating plate, 55, a thermometer and 56.
Detailed Description
Reference will now be made in detail to the preferred embodiments of the present utility model, examples of which are illustrated in the accompanying drawings, wherein reference numerals refer to the components and techniques of the present utility model so that the advantages and features of the present utility model may be more readily understood in the proper environment for practice. The following description is a specific embodiment of the present utility model.
The following will describe an example in which the gas generating plant transmits compressed air to the gas consuming plant, and the gas generating plant is spaced 3km from the gas consuming plant.
Example 1
As shown in fig. 1, the device for transporting gas in a low-temperature environment for a long distance is composed of a gas self-cleaning filter 44, a gas pipe 1, a booster pump 2 and a water draining device 3 arranged on the gas pipe 1.
The gas pipeline is formed by connecting three gas pipes 1, the gas pipes 1 are arc pipes, the middle part of each gas pipe 1 is bent downwards, and a drain device 3 is arranged at the lowest part of each gas pipe.
The gas self-cleaning filter 44 is used to filter impurities in the gas, such as dust, mechanical debris, and the like.
The air inlet end of the booster pump 2 is connected with the air self-cleaning filter 44, and the air outlet end is connected with the air pipe 1, so as to boost the pressure of the air filtered by the air self-cleaning filter 44 and discharge the boosted air into the air pipe 1, so that the air flows from the air inlet end to the air outlet end.
The drain 3 includes a breather pipe 31, a water collecting pipe 32, a drain pipe 33, and a drain valve 34.
The breather pipe 31 is of a U-shaped structure, the opening of the U-shaped structure of the breather pipe 31 is downward, and two ends of the breather pipe are respectively connected and communicated with two ends of the water collecting pipe 32.
The vent pipe 31 is in a U-shaped structure, the opening of the U-shaped structure of the vent pipe 31 is downward, two ends of the vent pipe are respectively connected and communicated with two ends of the water collecting pipe 32, and when condensate water enters the drainage device 3, the condensate water flows into the water collecting pipe 32 under the action of gravity, so that the condensate water is prevented from being blown into the vent pipe 31 under the driving of air flow, and then the condensate water is continuously discharged into the air conveying pipe 1 by the air flow.
The water collecting pipe 32 is of a U-shaped structure and is arranged below the vent pipe 31, the opening of the U-shaped structure of the water collecting pipe 32 faces upwards, two ends of the water collecting pipe 32 are respectively connected and communicated with two ends of the vent pipe 31, an air inlet 35 and an air outlet 36 are respectively formed at the joint of the water collecting pipe 32 and the vent pipe 31, and the air inlet 35 and the air outlet 36 are respectively communicated with two adjacent gas transmission pipes 1.
The water collecting pipe 32 is provided with two stop valves 37, and the two stop valves 37 are respectively arranged on the water collecting pipe 32 and positioned at two sides of the joint of the water discharging pipe 33 and the water collecting pipe 32.
The water collecting pipe 32 is used for collecting condensed water in the air conveying pipe 1, the water collecting pipe 32 is arranged to be of a U-shaped structure, an opening of the U-shaped structure of the water collecting pipe 32 is upwards and arranged below the ventilation pipe 31, two ends of the ventilation pipe 31 are respectively connected and communicated, and when the condensed water in the air conveying pipe 1 flows into the water discharging device 3 along with air flow, the condensed water flows into the water collecting pipe 32 under the action of gravity and is collected in the transverse pipe 38 of the water collecting pipe.
The drain pipe 33 has a U-shaped structure, is arranged below the water collecting pipe 32, has an upward opening, and has both ends connected and communicated with the transverse pipe 38 of the water collecting pipe. The transverse pipe 39 of the drain pipe is in a downward bent arc shape, and the drain valve 34 is arranged on the drain pipe 33 and is positioned at the lowest position of the transverse pipe 39 of the drain pipe.
The drain pipe 33 is arranged to be of a U-shaped structure and is positioned below the water collecting pipe 32, the opening of the U-shaped structure of the drain pipe 33 is upward, two ends of the drain pipe are connected and communicated with the transverse pipe 38 of the water collecting pipe, condensed water collected in the transverse pipe 38 of the water collecting pipe can flow into the drain pipe 33, the transverse pipe 39 of the drain pipe is arranged to be of a downward bent arc shape, the drain valve 34 is arranged at the lowest position of the transverse pipe 39 of the drain pipe, and the condensed water in the drain pipe 33 can be discharged through the drain valve 34.
The horizontal pipe 38 of the water collecting pipe refers to a pipe of a closed end of the U-shaped structure of the water collecting pipe 32, that is, a part of the pipe extending in the left-right direction at the lower end of the water collecting pipe 32 in the drawing.
The horizontal pipe 39 of the drain pipe is a pipe at the closed end of the U-shaped structure of the drain pipe 33, that is, a portion of the pipe extending in the left-right direction at the lower end of the drain pipe 33 in the drawing.
Preferably, the air pipe 1 is wrapped with an insulating layer. The heat preservation layer is arranged on the gas pipe 1, so that the condensation of water vapor in the gas pipe 1 into liquid water can be reduced.
As shown in fig. 3, a heat preservation device 5 is arranged outside the drainage device 3, and the heat preservation device 5 comprises a box body 51, a solar panel 52, a storage battery 53, a heating plate 54, a thermometer 55 and a control system 56.
The box 51 is square and is sleeved outside the drainage device 3.
The solar panel 52 is disposed on the outer wall of the box 51, and is used for collecting solar energy and converting the solar energy into electric energy.
The battery 53 is disposed in the case 51, electrically connected to the solar panel 52, and stores electric energy generated by the solar panel 52.
The heating sheet 54 is provided in the case 51, electrically connected to the battery 53, and heats the internal space of the case 51.
The thermometer 55 is provided in the case 51 and detects the temperature of the internal space of the case 51.
The control system 56 is arranged in the box body 51 and is electrically connected with the storage battery 53, the heating plate 54 and the thermometer 55 respectively, and is used for controlling the heating plate 54 to heat the inner space of the box body 51 when the thermometer 55 detects that the temperature of the inner space of the box body 51 is lower than 0 ℃, preventing condensed water in the drainage device 3 from being frozen to cause that the condensed water entering the drainage device 3 cannot be discharged, and controlling the heating plate 54 to stop heating the inner space of the box body 51 when the thermometer 55 detects that the temperature of the inner space of the box body 51 is higher than 0 ℃, so that electric energy is saved.
Preferably, the air delivery pipe 1 is provided with a water discharge device 3 at intervals of 1000 m. A drainage device 3 is arranged on the air pipe 1 at intervals of 1000m, so that condensed water in the air pipe 1 can be timely drained.
Example 2
As shown in fig. 4, the present embodiment is different from embodiment 1 in that the gas delivery pipe 1 is a straight pipe. The water droplets in the gas pipe 1 flow into the drainage device 3 by the blowing of the transported gas, and then are discharged into the drainage device 3.
When the self-cleaning gas pump is used, the self-cleaning gas filter 44 is communicated with the gas source pipe, the booster pump 2 is respectively communicated with the self-cleaning gas filter 44 and the starting end of the gas pipe 1, the water draining device 3 is arranged on the gas pipe 1 every 1000m, and the tail end of the gas pipe 1 is communicated with the gas pipe, so that gas can be conveyed.
The utility model is used for the device of the low-temperature environment long distance conveying gas, boost the pressure of the gas through the booster pump 2, make the gas flow from the air supply end of the air pipe 1 to the air utilization end, set up the drain device 3 on the air pipe 1, including breather pipe 31, drain pipe 33, collecting pipe 32 and drain valve 34, the breather pipe 31 is used for conveying the gas, the collecting pipe 32 is used for gathering the condensed water in the air pipe 1, set up the collecting pipe 32 to be U-shaped structure, the opening of the U-shaped structure of the collecting pipe 32 is upwards, set up under breather pipe 31, both ends are connected and communicated with both ends of the breather pipe 31 separately, can make the condensed water in the air pipe 1 flow into the collecting pipe 32 under the action of gravity while flowing into the drain device 3, collect in the horizontal pipe 38 of the collecting pipe.
The drain pipe 33 is of a U-shaped structure and is positioned below the water collecting pipe 32, the opening of the U-shaped structure of the drain pipe 33 is upward, two ends of the drain pipe are connected and communicated with the transverse pipe 38 of the water collecting pipe, condensed water collected in the transverse pipe 38 of the water collecting pipe can flow into the drain pipe 33, the transverse pipe 39 of the drain pipe is of a downward bent arc shape, the drain valve 34 is arranged at the lowest position of the transverse pipe 39 of the drain pipe, the condensed water in the drain pipe 33 can be discharged through the drain valve 34, and the condensed water is prevented from freezing in the pipeline. The problem that when the gas is conveyed in a long-distance pipeline in a cold environment, condensed water in the gas condenses ice in the pipeline to cause fluctuation of pressure and flow of the gas at two ends of gas supply and gas use can be solved.
By arranging two stop valves 37 on the water collecting pipe 32 on two sides of the joint of the water discharging pipe 33 and the water collecting pipe 32, the air flow speed can be limited by the stop valves 37, so that condensed water in the transverse pipe 38 of the water collecting pipe can flow into the water discharging pipe 33 more easily, and can be prevented from flowing into the air conveying pipe 1 along with the air flow.
Through setting up breather pipe 31 to U-shaped structure, the opening of the U-shaped structure of breather pipe 31 is downward, and both ends are connected and communicate with the both ends of collector pipe 32 respectively, can be when the comdenstion water gets into drainage device 3 in, flow into collector pipe 32 under the effect of gravity, prevent that the comdenstion water from blowing into in the breather pipe 31 under the air current drive in the back, continue by the air current in the air pipe 1 of comingling in and going out.
By arranging the cross pipe 39 of the drain pipe in a downward bending arc shape, condensed water in the drain pipe 33 is collected at the lowest position of the cross pipe 39 of the drain pipe, and the drain valve 34 is arranged at the lowest position of the cross pipe 39 of the drain pipe, so that the condensed water in the drain pipe 33 can be discharged through the drain valve 34.
Through setting up heat preservation device 5 and including box 51, solar cell panel 52, battery 53, heating plate 54, thermometer 55 and control system 56, locate the box 51 cover outside the drainage device 3, solar cell panel 52 can collect solar energy conversion production electric energy, and the electric energy of solar cell panel 52 production can be stored to battery 53, and heating plate 54 sets up in box 51, can heat box 51 inner space, and thermometer 55 can detect the temperature of box 51 inner space. The control system 56 can automatically control the heating and heat preservation of the inside of the tank body 51, and prevent the condensed water in the drainage device 3 from being frozen and being unable to be discharged.
It should be noted that the above-mentioned embodiments illustrate rather than limit the utility model, and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim.
Claims (7)
1. The device for conveying gas in a low-temperature environment for a long distance is characterized by comprising a gas conveying pipe (1), a booster pump (2) and a drainage device (3) arranged on the gas conveying pipe (1),
the booster pump (2) is arranged on the gas pipe (1) and is positioned at the gas supply end of the gas pipe (1);
the drainage device (3) comprises a vent pipe (31), a water collecting pipe (32), a drain pipe (33) and a drain valve (34);
the water collecting pipe (32) is of a U-shaped structure and is arranged below the vent pipe (31), an opening of the U-shaped structure of the water collecting pipe (32) faces upwards, two ends of the water collecting pipe are respectively connected and communicated with two ends of the vent pipe (31), and an air inlet (35) and an air outlet (36) are respectively formed at the joint of the water collecting pipe (32) and the vent pipe (31);
the drain pipe (33) is of a U-shaped structure and is arranged below the water collecting pipe (32), the opening of the U-shaped structure of the drain pipe (33) faces upwards, and two ends of the U-shaped structure are connected and communicated with the transverse pipe (38) of the water collecting pipe;
the drain valve (34) is arranged on the drain pipe (33) and is positioned on a transverse pipe (39) of the drain pipe.
2. The device for long distance gas transportation in low temperature environment according to claim 1, further comprising a shut-off valve (37),
the stop valves (37) are provided with two;
the two stop valves (37) are respectively arranged on the water collecting pipe (32) and are positioned at two sides of the joint of the water discharging pipe (33) and the water collecting pipe (32).
3. The device for long distance gas transportation in low temperature environment according to claim 2, wherein the vent pipe (31) has a U-shaped structure, the opening of the U-shaped structure of the vent pipe (31) is downward, and two ends of the vent pipe are respectively connected and communicated with two ends of the water collecting pipe (32).
4. The apparatus for transporting gas over long distances in a low temperature environment according to claim 3, wherein,
the transverse pipe (39) of the drain pipe is in a downward bent arc shape;
the drain valve (34) is arranged at the lowest part of a transverse pipe (39) of the drain pipe.
5. The device for long distance gas transportation in low temperature environment according to claim 4, further comprising a gas self-cleaning filter (4),
the gas self-cleaning filter (4) is arranged at the gas supply end of the gas pipe (1) and is connected with the booster pump (2).
6. The device for long distance gas transportation in low temperature environment according to claim 5, wherein a drainage device (3) is arranged on the gas pipe (1) at intervals of 1000 m.
7. The device for long distance gas transportation in low temperature environment according to any of claims 1-6, further comprising a thermal insulation device (5),
the heat preservation device (5) comprises a box body (51), a solar panel (52), a storage battery (53), a heating plate (54), a thermometer (55) and a control system (56);
the box body (51) is square and sleeved outside the drainage device (3);
the solar cell panel (52) is arranged on the outer wall of the box body (51);
the storage battery (53) is arranged in the box body (51) and is electrically connected with the solar panel (52);
the heating plate (54) is arranged in the box body (51) and is electrically connected with the storage battery (53);
the thermometer (55) is arranged in the box body (51);
the control system (56) is arranged in the box body (51) and is electrically connected with the storage battery (53), the heating sheet (54) and the thermometer (55) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320136889.0U CN218993087U (en) | 2023-01-18 | 2023-01-18 | Device for long-distance gas conveying in low-temperature environment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320136889.0U CN218993087U (en) | 2023-01-18 | 2023-01-18 | Device for long-distance gas conveying in low-temperature environment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218993087U true CN218993087U (en) | 2023-05-09 |
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ID=86188903
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320136889.0U Active CN218993087U (en) | 2023-01-18 | 2023-01-18 | Device for long-distance gas conveying in low-temperature environment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218993087U (en) |
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2023
- 2023-01-18 CN CN202320136889.0U patent/CN218993087U/en active Active
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