CN220850860U - Large-channel gas isolation device - Google Patents
Large-channel gas isolation device Download PDFInfo
- Publication number
- CN220850860U CN220850860U CN202322783837.5U CN202322783837U CN220850860U CN 220850860 U CN220850860 U CN 220850860U CN 202322783837 U CN202322783837 U CN 202322783837U CN 220850860 U CN220850860 U CN 220850860U
- Authority
- CN
- China
- Prior art keywords
- pipe
- channel
- gas
- liquid
- shaped
- 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
- 238000002955 isolation Methods 0.000 title claims abstract description 18
- 239000007788 liquid Substances 0.000 claims abstract description 105
- 238000003860 storage Methods 0.000 claims abstract description 41
- 238000002347 injection Methods 0.000 claims description 28
- 239000007924 injection Substances 0.000 claims description 28
- 238000005192 partition Methods 0.000 claims description 10
- 230000001502 supplementing effect Effects 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 239000007789 gas Substances 0.000 description 48
- 238000000034 method Methods 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000005272 metallurgy Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 238000006424 Flood reaction Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
Landscapes
- Pipeline Systems (AREA)
Abstract
The large channel gas isolating device has the advantages that the original gas pipeline is disconnected at the position on the original gas conveying pipeline, which is required to isolate and block the gas circulation, the original gas pipeline is respectively connected to the inlet and the outlet of the device, and a new gas channel is formed by connection of the device; a certain amount of liquid which is insoluble with the gas in the channel is injected into the U-shaped sinkage bend of the device, so that the gas in the channel can be completely isolated and blocked; the liquid in the U-shaped sinking bend can be discharged to the liquid storage tank through the drainage valve, so that the gas circulation can be recovered; a pump is arranged between the U-shaped sinking bend and the liquid storage tank, so that the liquid can be recycled and the gas channel is isolated from the gas channel by the device and is switched in circulation state; the device has the characteristics of air flow isolation, zero leakage in the pipe, zero leakage in the environment and simplicity and reliability in operation.
Description
Technical Field
The utility model belongs to the technical field of large-channel gas isolation and blocking, and particularly relates to a large-channel gas isolation device which is used for large-flow gas delivery in the fields of energy, chemical industry and metallurgy.
Background
In the process of delivering large-flow gas in the industries of energy, chemical industry, metallurgy and the like, a large-size circular or rectangular pipeline is often required to be used as a gas channel. At specific locations in the channel, it is desirable to block and isolate the flow of gas. Currently, the main method is to install butterfly valves or gate valves with large diameters, however, these valves have the risk of leakage, and are therefore not suitable for occasions where it is necessary to completely block and isolate the gas flow. In order to thoroughly block and isolate the flow of gas in large channels, blind valves are currently mainly used. While the blind plate valve can achieve complete blockage and isolation, the gas within the passageway can leak into the environment during operation. If these gases are harmful, they can present a safety hazard and cause environmental pollution. In addition, the blind plate valve is required to be operated by manpower, the operation process is tedious and time-consuming, and the automatic process control is not facilitated.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention aims to provide a large-channel gas isolation device which has the characteristics of isolating gas flow, zero leakage in a pipe, zero leakage in the environment and simplicity and reliability in operation.
In order to achieve the above purpose, the invention adopts the following technical scheme: a large-channel gas isolation device comprises a gas pipeline, wherein the middle section of the gas pipeline is a U-shaped sinking bent pipe; the inlet vertical channel at the left side of the U-shaped sinking bent pipe is communicated with the inlet of the gas pipeline, and the outlet vertical channel at the right side is communicated with the outlet of the gas pipeline; the pipe section in the middle of the U-shaped sinking bent pipe is internally provided with insulating liquid; a drain pipe is arranged on the pipe wall at the lowest end in the middle of the U-shaped sinking bent pipe; the drain pipe is communicated with the liquid storage tank through a drain valve; the outlet of the liquid storage tank is communicated with the inlet of the pump through a first liquid injection pipe and a first liquid injection valve; the output end of the pump is communicated with the outlet vertical channel through a second liquid injection valve; and the outlet vertical channel is also connected with an overflow pipe through an overflow valve.
The top of the liquid storage tank is provided with an exhaust valve, the bottom of the liquid storage tank is connected with a drain valve through a drain pipe, and a water supplementing valve arranged at the top of the liquid storage tank is connected with a water supplementing pipeline.
One side of the liquid storage tank is also connected with a liquid level meter B.
One side of the U-shaped sinking bent pipe is provided with a liquid level meter A.
A large-channel gas isolation device comprises a gas pipeline, wherein the middle section of the gas pipeline is a T-shaped pipe; a baffle plate is arranged in the middle of the T-shaped pipe, and the upper end of the baffle plate is connected with the upper side pipe wall of the T-shaped pipe; the channel between the left side wall of the T-shaped pipe lower convex part and the partition plate is an inlet vertical channel, the inlet vertical channel is communicated with the inlet of the gas pipeline, the channel between the right side wall of the T-shaped pipe lower convex part and the partition plate is an outlet vertical channel, and the outlet vertical channel is communicated with the outlet of the gas pipeline;
The pipe section in the middle of the T-shaped pipe is internally provided with insulating liquid; a drain pipe is arranged on the pipe wall at the lowest end of the middle of the T-shaped pipe; the drain pipe is communicated with the liquid storage tank through a drain valve; the outlet of the liquid storage tank is communicated with the inlet of the pump through a first liquid injection pipe and a first liquid injection valve; the output end of the pump is communicated with the outlet vertical channel through a second liquid injection valve; and the outlet vertical channel is also connected with an overflow pipe through an overflow valve.
The beneficial effects of the utility model are as follows:
The device can completely isolate and block the gas in the large channel, realize no leakage and can be connected with an automatic or remote control system. The device has wide application range, can be effectively applied no matter how large the cross section area of the channel is, and is particularly suitable for places with larger cross section area. The device can be used for isolating and blocking the channels of various media by only changing the liquid type which does not react with the gaseous media in the channels, and is applicable to high-temperature flue gas, toxic gas, corrosive gas or inflammable and explosive gas. The device has two forms, the structure and the function are the same, and is only suitable for the gas channels with two different cross-sectional shapes of a circle and a rectangle so as to facilitate connection.
Drawings
Fig. 1 is a schematic structural diagram of embodiment 1 of the present utility model.
Fig. 2 is a schematic structural diagram of embodiment 2 of the present utility model.
Fig. 1 and 2 show two forms of the utility model, the mechanism and function of the two forms are the same, but the channel shapes are different, the form of fig. 1 is used for accessing a channel with circular cross-section, and the form of fig. 2 is used for accessing a channel with rectangular cross-section.
In the figure: 1-inlet, 2-inlet vertical channel, 3-U-shaped sinking bent pipe, 4-drain pipe, 5-drain valve, 6-liquid storage tank, 7-drain pipe, 8-drain valve, 9-liquid injection pipe I, 10-liquid injection valve I, 11-pump, 12-overflow pipe, 13-overflow valve, 14-liquid level meter A, 15-liquid level meter B, 16-isolated liquid, 17-exhaust valve, 18-outlet, 19-outlet vertical channel, 20-liquid injection pipe II, 21-liquid injection valve II, 22-stored liquid, 23-partition plate, 24-water supplementing valve and 25-water supplementing pipeline.
Detailed Description
The structural and operational principles of the present utility model will be described in further detail below with reference to the drawings and examples.
Referring to fig. 1, a large-channel gas isolation device comprises a gas pipeline, and is characterized in that the middle section of the gas pipeline is a U-shaped sinking bent pipe 3; the left inlet vertical channel 2 of the U-shaped sinking bent pipe 3 is communicated with the inlet 1 of the gas pipeline, and the right outlet vertical channel 19 is communicated with the outlet 18 of the gas pipeline; the pipe section in the middle of the U-shaped sinking bent pipe 3 is internally provided with an isolated liquid 16; a drain pipe 4 is arranged on the pipe wall at the lowest end in the middle of the U-shaped sinking bent pipe 3; the drain pipe 4 is communicated with the liquid storage tank 6 through a drain valve 5; the outlet of the liquid storage tank 6 is communicated with the inlet of the pump 11 through a first liquid injection pipe 9 and a first liquid injection valve 10; the output end of the pump 11 is communicated with the outlet vertical channel 19 through a second liquid injection valve 21; the outlet vertical passage 19 is also connected with an overflow pipe 12 through an overflow valve 13.
The top of the liquid storage tank 6 is provided with an exhaust valve 17, the bottom of the liquid storage tank 6 is connected with a blow-down valve 8 through a blow-down pipe 7, and a water supplementing valve 24 arranged at the top of the liquid storage tank is connected with a water supplementing pipeline 25.
One side of the liquid storage tank 6 is also connected with a liquid level meter B15.
One side of the U-shaped sinking bent pipe 3 is provided with a liquid level meter A14.
Referring to fig. 2, a large-channel gas isolation device comprises a gas pipeline, wherein the middle section of the gas pipeline is a T-shaped pipe; a partition plate 23 is arranged in the middle of the T-shaped pipe, and the upper end of the partition plate 23 is connected with the upper side pipe wall of the T-shaped pipe; the channel between the left side wall of the T-shaped pipe downward convex part and the partition plate 23 is an inlet vertical channel 2, the inlet vertical channel 2 is communicated with the inlet 1 of the gas pipeline, the channel between the right side wall of the T-shaped pipe downward convex part and the partition plate 23 is an outlet vertical channel 19, and the outlet vertical channel 19 is communicated with the outlet 18 of the gas pipeline;
The pipe section in the middle of the T-shaped pipe 3 is internally provided with an insulating liquid 16; a drain pipe 4 is arranged on the pipe wall at the lowest end in the middle of the T-shaped pipe 3; the drain pipe 4 is communicated with the liquid storage tank 6 through a drain valve 5; the outlet of the liquid storage tank 6 is communicated with the inlet of the pump 11 through a first liquid injection pipe 9 and a first liquid injection valve 10; the output end of the pump 11 is communicated with the outlet vertical channel 19 through a second liquid injection valve 21; the outlet vertical channel 19 is also connected with an overflow pipe 12 through an overflow valve 13;
The lower end of the baffle plate 23 and the bottom of the T-shaped pipe are provided with gas channels. When the liquid in the T-shaped pipe floods the lower end of the baffle plate, the gas circulation can be effectively blocked.
The working principle of the device of the utility model is as follows: in the position where the original gas channel is broken, the device is inserted and the gas inlet and outlet ends of the broken original gas channel are connected to the inlet 1 and outlet 18 of the device, respectively. It should be noted that the inlet 1 and the outlet 18 of embodiment 1 are only defined, and the flow direction of the working medium is not distinguished in practice, and the present utility model is applicable to a two-way flow scenario.
The construction of the device comprises the following parts: the inlet 1 is connected with the inlet vertical channel 2, the outlet 18 is connected with the outlet vertical channel 19, and the inlet vertical channel 2 is adjacent to the outlet vertical channel 19 and communicated with the bottom to form a U-shaped container, namely a U-shaped sinking bent pipe 3; at the lowest point of the U-shaped dip bend 3, a drain pipe 4 is mounted, which drain pipe 4 is connected to a liquid reservoir 6. A drain valve 5 is mounted on the drain pipe 4, and when the drain valve 5 is opened, the isolated liquid 16 in the U-shaped sinking bent pipe 3 gradually flows into the drain pipe 4 and is stored in the liquid storage tank 6 to become a storage liquid 22. It should be noted that the barrier liquid 16 is the same liquid as the storage liquid 22, and is merely numbered and named for convenience of description. The level of the highest point of the installation position of the liquid storage tank 6 is lower than the lowest point of the U-shaped sinking bent pipe 3. A drain pipe 7 and a drain valve 8 are arranged at the lowest point of the bottom of the liquid storage tank, and the stored liquid 22 is emptied during maintenance. Near the bottom of the liquid storage tank, a first liquid injection pipe 9 is arranged, and the first liquid injection pipe 9 is connected to the inlet of a pump 11. The middle of the first liquid injection pipe 9 is provided with a first liquid injection valve 10. The outlet of the pump 11 is connected to the outlet vertical channel 19 through a second filling pipe 20 and a second filling valve 21 for filling the storage liquid 22 into the U-shaped dip tube 3. At a certain height of the outlet vertical channel 19, a drain pipe 12 and a drain valve 13 are installed, and the other end of the drain pipe 12 is connected to the liquid storage tank 6 to drain excess liquid to the liquid storage tank 6, avoiding that the insulating liquid 16 flows into the raw gas channel through the inlet 1 or the outlet 18. An exhaust valve 17 is arranged at the top of the liquid storage tank 6. On the outlet vertical channel 19 a level gauge a14 is mounted for observing the liquid level in the U-shaped dip tube 3. The liquid storage tank 6 is provided with a liquid level gauge B15 for observing the height of the stored liquid 22.
The working process of the device is as follows: when the gas circulation in the channel needs to be isolated and blocked, the liquid discharge valve 5 is closed, the first liquid injection valve 10 and the second liquid injection valve 21 are opened, and the pump 11 is started. The storage liquid 22 in the liquid storage tank 6 is injected into the U-shaped sinking bent pipe 3, and when the height of the isolation liquid 16 is stably higher than the highest point of the U-shaped sinking bent pipe 3, the gas flowing in the device is isolated and blocked. At this time, the second filling valve 21, the first filling valve 10 and the pump 11 may be closed.
When the gas circulation in the channel needs to be restored, the liquid discharge valve 5 is opened, and the device gradually restores the gas circulation capacity along with the gradual inflow of the isolated liquid 16 in the U-shaped sinking bent pipe 3 into the liquid storage tank 6 through the liquid discharge pipe 4 and the liquid discharge valve 5.
When the drain valve 5, the first filling valve 10, the second filling valve 21 and the pump 11 are connected with an automatic or remote control system, the above-mentioned work can be realized by remote automatic control of the present utility model.
The large channel gas isolation device has two forms, namely, a first form (figure 1) is suitable for a circular pipeline, and a second form (figure 2 or embodiment 2) is suitable for a rectangular pipeline. The two forms have the same function and basically the same structure, but the channel shapes are different.
In embodiment 2, the partition plate 23 serves to reduce the cost of manufacturing the inlet vertical passage 2 and the outlet vertical passage 19 and to reduce the installation external dimensions of the device.
Claims (5)
1. The large-channel gas isolation device comprises a gas pipeline and is characterized in that the middle section of the gas pipeline is a U-shaped sinking bent pipe (3); an inlet vertical channel (2) at the left side of the U-shaped sinking bent pipe (3) is communicated with an inlet (1) of the gas pipeline, and an outlet vertical channel (19) at the right side is communicated with an outlet (18) of the gas pipeline; an isolated liquid (16) is arranged in the pipe section in the middle of the U-shaped sinking bent pipe (3); a drain pipe (4) is arranged on the pipe wall at the lowest end in the middle of the U-shaped sinking bent pipe (3); the drain pipe (4) is communicated with the liquid storage tank (6) through a drain valve (5); the outlet of the liquid storage tank (6) is communicated with the inlet of the pump (11) through a first liquid injection pipe (9) and a first liquid injection valve (10); the output end of the pump (11) is communicated with the outlet vertical channel (19) through a second liquid injection valve (21); the outlet vertical channel (19) is also connected with an overflow pipe (12) through an overflow valve (13).
2. A large channel gas isolation device according to claim 1, characterized in that the top of the liquid storage tank (6) is provided with an exhaust valve (17), the bottom of the liquid storage tank (6) is connected with a blow-down valve (8) through a blow-down pipe (7), and a water supplementing valve (24) arranged at the top of the liquid storage tank is connected with a water supplementing pipe (25).
3. A large channel gas isolation device according to claim 1, wherein one side of the liquid storage tank (6) is further connected with a liquid level meter B (15).
4. A large channel gas isolation device according to claim 1, characterized in that a level gauge a (14) is arranged on one side of the U-shaped sinking bent pipe (3).
5. The large-channel gas isolation device comprises a gas pipeline and is characterized in that the middle section of the gas pipeline is a T-shaped pipe; a partition plate (23) is arranged in the middle of the T-shaped pipe, and the upper end of the partition plate (23) is connected with the upper side pipe wall of the T-shaped pipe; the channel between the left side wall of the T-shaped pipe downward convex part and the baffle plate (23) is an inlet vertical channel (2), the inlet vertical channel (2) is communicated with the inlet (1) of the gas pipeline, the channel between the right side wall of the T-shaped pipe downward convex part and the baffle plate (23) is an outlet vertical channel (19), and the outlet vertical channel (19) is communicated with the outlet (18) of the gas pipeline;
The pipe section in the middle of the T-shaped pipe (3) is internally provided with an insulating liquid (16); a drain pipe (4) is arranged on the pipe wall at the lowest end in the middle of the T-shaped pipe (3); the drain pipe (4) is communicated with the liquid storage tank (6) through a drain valve (5); the outlet of the liquid storage tank (6) is communicated with the inlet of the pump (11) through a first liquid injection pipe (9) and a first liquid injection valve (10); the output end of the pump (11) is communicated with the outlet vertical channel (19) through a second liquid injection valve (21); the outlet vertical channel (19) is also connected with an overflow pipe (12) through an overflow valve (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322783837.5U CN220850860U (en) | 2023-10-17 | 2023-10-17 | Large-channel gas isolation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322783837.5U CN220850860U (en) | 2023-10-17 | 2023-10-17 | Large-channel gas isolation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220850860U true CN220850860U (en) | 2024-04-26 |
Family
ID=90778797
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322783837.5U Active CN220850860U (en) | 2023-10-17 | 2023-10-17 | Large-channel gas isolation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220850860U (en) |
-
2023
- 2023-10-17 CN CN202322783837.5U patent/CN220850860U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN220850860U (en) | Large-channel gas isolation device | |
| CN204647834U (en) | A kind of device collecting torch gas pipeline lime set with water seal | |
| CN2350522Y (en) | Negative pressure blow-off device | |
| CN210048648U (en) | Reversing water seal valve for gas fuel kiln | |
| CN202972038U (en) | Anti-blocking visible gas diffusing device | |
| CN205530595U (en) | A closed water seal well and drainage system for containing sulphur oil gas field | |
| CN106968662A (en) | A kind of portable emptying liquid-separation skid-mounted unit with function of measuring of dropping a hint | |
| CN208239068U (en) | A kind of valve fluid performance pressure stabilizing test device | |
| CN207093056U (en) | A kind of portable emptying liquid-separation skid-mounted unit with function of measuring of dropping a hint | |
| CN103949138B (en) | A kind of stop flue gas to pour in down a chimney absorption tower and application | |
| CN207760873U (en) | Assembled steel pipe gallery sewage conduct maintenance structure | |
| CN2443046Y (en) | Installation for foster and water diversion | |
| CN104695538A (en) | Automatic water-supplementing water seal technology of water-seal well | |
| CN110820670A (en) | Pipeline emptying device and method for complex-terrain long-distance pipeline water delivery and transfer system | |
| CN220451853U (en) | Multi-well metering sledge | |
| CN212998561U (en) | Sediment device that does not stop liquid in pipeline | |
| CN210950804U (en) | First class liquid high-risk chemical storage and conveying system | |
| CN217082198U (en) | Pipeline accumulated liquid non-stop automatic discharge and collection device at mountain depression part of gas pipeline | |
| CN218581668U (en) | Low-position oil return system for steam turbine oil-driven quick-closing valve | |
| CN207130858U (en) | Vaporization prevention integrated water is shunt in a well | |
| CN204690934U (en) | Pump house discharge pressure well | |
| CN203816462U (en) | Absorption tower for preventing backflow of smoke | |
| CN216345359U (en) | Structure for eliminating water accumulated in gas pipeline | |
| CN202659989U (en) | Fluid check valve with remote control function | |
| CN215409484U (en) | High leakproofness liquid accuse check valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |