CN112879608A - Partition mechanism and partition device - Google Patents
Partition mechanism and partition device Download PDFInfo
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- CN112879608A CN112879608A CN202110156999.9A CN202110156999A CN112879608A CN 112879608 A CN112879608 A CN 112879608A CN 202110156999 A CN202110156999 A CN 202110156999A CN 112879608 A CN112879608 A CN 112879608A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K13/00—Other constructional types of cut-off apparatus; Arrangements for cutting-off
- F16K13/08—Arrangements for cutting-off not used
- F16K13/10—Arrangements for cutting-off not used by means of liquid or granular medium
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Abstract
本发明公开了一种隔断机构及隔断装置，涉及煤气管道检修技术领域。该隔断机构包括U型管、补水管及排水组件。所述U型管的两端分别连接进气管及出气管；所述补水管与所述U型管连通；所述排水组件包括第一竖管、水箱及第二竖管，所述第一竖管一端与所述水箱连通，另一端与所述U型管的底部连通，所述第二竖管的一端与所述水箱连通，另一端开口且所述开口高于所述U型管。该隔断机构能够解决传统隔断装置密封可靠性不高且不易检修的问题，实现了不带煤气操作，对煤气管道进行有效隔断。
The invention discloses a partition mechanism and a partition device, which relate to the technical field of gas pipeline maintenance. The partition mechanism includes a U-shaped pipe, a water supply pipe and a drainage assembly. The two ends of the U-shaped pipe are respectively connected to the air inlet pipe and the air outlet pipe; the water supply pipe is communicated with the U-shaped pipe; the drainage assembly includes a first vertical pipe, a water tank and a second vertical pipe, the first vertical pipe One end of the pipe is communicated with the water tank, the other end is communicated with the bottom of the U-shaped pipe, one end of the second vertical pipe is communicated with the water tank, and the other end is open and the opening is higher than the U-shaped pipe. The partition mechanism can solve the problems of low sealing reliability and difficult maintenance of the traditional partition device, and realizes the operation without gas and effectively partitions the gas pipeline.
Description
Technical Field
The invention relates to the technical field of gas pipeline maintenance, in particular to a partition mechanism and a partition device.
Background
During the maintenance of gas facilities, a partition device is generally used to separate the running gas pipeline (facility) from the maintained gas pipeline (facility). With the development of mechanization and automation technology, in order to reduce the labor intensity of operators operating the partition device, the partition device is developed from a shut-off valve and a manual blind plate to a shut-off valve and a manual blind plate valve and a shut-off valve and a power blind plate valve. Because the shut-off valve has inner leakage, in recent years, in order to reduce the operation risk of operating the partition device and reduce the outer leakage of coal gas, the closed blind plate valve is popularized to replace the existing artificial blind plate and open blind plate valve. The closed blind plate valve is characterized in that a closed cylinder is additionally arranged outside the open blind plate valve, and a diffusing pipe is additionally arranged on the upper part of the cylinder, so that the disordered diffusion of the coal gas leaked from the closing valve in the operation process is changed into ordered diffusion, the operation environment is improved, the non-coal gas operation is realized, and the operation safety is improved.
Although the operation of the 'closing valve + power closed type blind plate valve' improves the safety of the operation, the closed type blind plate valve has the following defects: 1) the sealing reliability is not high, and operators cannot know whether the device leaks or not in time; 2) the overhaul difficulty, the maintenance operation risk is big, and its leading cause is when it breaks down, must get into its closed barrel, belongs to the limited space operation, and its space is narrow, the operation of not being convenient for, leads to overhauing the operation risk height.
In view of the above problems, it is desirable to develop a partition mechanism and a partition device to solve the problems of low sealing reliability and high maintenance risk of the existing pipeline partition device.
Disclosure of Invention
The invention aims to provide a partition mechanism and a partition device, which can solve the problems that the traditional partition device is low in sealing reliability and difficult to maintain.
In order to achieve the purpose, the invention adopts the following technical scheme:
a partition mechanism comprising:
the two ends of the U-shaped pipe are respectively connected with an air inlet pipe and an air outlet pipe;
the water replenishing pipe is communicated with the U-shaped pipe;
the drainage assembly comprises a first vertical pipe, a water tank and a second vertical pipe, one end of the first vertical pipe is communicated with the water tank, the other end of the first vertical pipe is communicated with the bottom of the U-shaped pipe, one end of the second vertical pipe is communicated with the water tank, the other end of the second vertical pipe is provided with an opening, and the opening is higher than the U-shaped pipe.
Preferably, the moisturizing pipe is provided with main water replenishing valve and check valve in series in proper order, main water replenishing valve can control the switching of moisturizing pipe, the check valve can prevent water among the moisturizing pipe refluxes.
Preferably, the air outlet pipe is arranged on the air inlet pipe, and the air outlet pipe is arranged on the air inlet pipe.
Preferably, the pressure relief assembly comprises:
the pressure relief pipe is arranged on the air inlet pipe and/or the air outlet pipe;
the pressure relief valve is arranged on the pressure relief pipe and used for controlling the opening and closing of the pressure relief pipe;
a detection head capable of detecting a gas constituent passing through the pressure relief tube.
Preferably, the drain assembly further comprises:
and the high-position drain pipe is arranged on the second vertical pipe, and the joint of the high-position drain pipe and the second vertical pipe is higher than the bent section of the U-shaped pipe and lower than the bottoms of the air inlet pipe 100 and the air outlet pipe 101 connected with the U-shaped pipe. .
Preferably, the drain assembly further comprises:
the low-position drain pipe is arranged on the second vertical pipe, and the joint of the low-position drain pipe and the second vertical pipe is lower than the bottom end of the U-shaped pipe;
and the drain valve is arranged on the low-level drain pipe and used for controlling the opening and closing of the drain pipe and switching the running states (ventilation and water sealing) of the U-shaped pipe.
Preferably, the method further comprises the following steps:
the first liquid level monitoring assembly comprises a first monitoring point and a second monitoring point which are vertically arranged, and the joint of the low-level drain pipe and the second vertical pipe is positioned between the first monitoring point and the second monitoring point;
and the second liquid level monitoring assembly comprises a third monitoring point and a fourth monitoring point which are vertically arranged, and the joint of the high-level drain pipe and the second vertical pipe is positioned between the third monitoring point and the fourth monitoring point.
Preferably, a service valve is arranged on the first vertical pipe and used for controlling the opening and closing of the first vertical pipe.
The partition device comprises a partition mechanism and a blind plate mechanism, wherein the blind plate mechanism is arranged on the air outlet pipe.
Preferably, the blind plate mechanism comprises:
the blind plate valve can control the opening and closing of the air outlet pipe;
and the purging component is arranged on two sides of the blind plate valve and communicated with the air outlet pipe, and can charge gas into the air outlet pipe.
The invention has the beneficial effects that:
the invention provides a partition mechanism and a partition device. In the partition mechanism, the air inlet pipe and the air outlet pipe are communicated by utilizing the U-shaped pipe, when the gas pipeline needs to be ventilated, the drain valve of the drainage component is opened, the partition mechanism is in a ventilation state, and gas can enter a gas user through the U-shaped pipe. When the pipeline (or user side facility) behind the partition device needs to be overhauled, the drain valve of the drainage assembly is closed, the partition mechanism is in a water sealing state, water is injected into the U-shaped pipe through the water replenishing pipe at the moment, the water in the U-shaped pipe enters the drainage assembly, the drainage assembly is equivalent to a communicating vessel, the water surface in the first vertical pipe and the water surface in the second vertical pipe synchronously rise along with the increase of the injected water, and the partition of the gas pipeline is realized when the water surface rises to the U-shaped pipe and seals the U-shaped pipe body. The partition mechanism is simple in structure and principle and good in water sealing effect. The invention can effectively cut off the gas leaked from the inlet pipe (front end) switch valve, thereby realizing the operation without gas and effectively cutting off the gas pipeline.
Drawings
Fig. 1 is a schematic structural view of a partition device provided by the present invention.
In the figure:
100. an air inlet pipe; 101. an air outlet pipe;
1. an on-off valve; 2. a partition mechanism; 3. a blind plate mechanism;
21. a U-shaped pipe; 22. a water replenishing pipe; 23. a drainage assembly; 24. a pressure relief assembly; 31. a blind plate valve; 32. a purge assembly;
221. a main water replenishing valve; 222. a check valve; 223. an auxiliary water replenishing valve; 231. a first vertical tube; 232. a water tank; 233. a second standpipe; 234. a low-level drain pipe; 235. a drain valve; 236. a high-level drain pipe; 237. a first liquid level monitoring assembly; 238. a second liquid level monitoring component; 239. a service valve; 241. a pressure relief pipe; 242. a pressure relief valve; 243. a detection head; 321. a purge tube; 322. and (4) purging the valve.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Wherein the terms "first position" and "second position" are two different positions.
Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "secured" are to be construed broadly and encompass, for example, both fixed and removable connections; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may include the first feature being in direct contact with the second feature, or may include the first feature being in direct contact with the second feature but being in contact with the second feature by another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.
First embodiment
The present embodiment provides a partition device. As shown in fig. 1, the partition device includes a partition mechanism 2 and a blind mechanism 3. The gas pipelines are all provided with a switch valve 1 for controlling the opening and closing of the gas pipelines, and preferably, the switch valve 1 is a butterfly valve. The partition mechanism 2 is disposed in the gas pipeline to partition the gas pipeline into an inlet pipe 100 and an outlet pipe 101. Wherein the switch valve 1 is arranged on the air inlet pipe 100 and is a main valve of a gas pipeline, the blind plate mechanism 3 is arranged on the air outlet pipe 101, and an operator can cut off the gas pipeline through the blind plate mechanism 3 and overhaul the gas pipeline at the rear end of the blind plate mechanism 3.
Preferably, the type of the blind plate valve 31 can be selected according to the pipe diameter of the gas pipeline, when the pipe diameter of the gas pipeline is less than 500mm, a manual blind plate or a manual fan-shaped blind plate valve can be adopted, and the blind plate valve 31 is manually controlled to be opened and closed or manually pumped and blocked by an operator; when the pipe diameter of the gas pipeline is larger than 500mm, the power open type blind plate valve 31 can be adopted, namely, an operator can control the opening and closing of the blind plate valve 31 through a power device.
In order to further improve the safety of the partition device and ensure that the blind plate valve 31 is operated without gas, the partition mechanism 2 partitions the gas pipeline by using a water seal principle. Specifically, the partition mechanism 2 includes a U-shaped pipe 21, a water replenishing pipe 22, and a water discharging unit 23. The both ends of U type pipe 21 are connected intake pipe 100 and outlet duct 101 respectively, and moisturizing pipe 22 communicates with U type pipe 21, and drainage subassembly 23 includes first standpipe 231, water tank 232 and second standpipe 233, and first standpipe 231 one end and water tank 232 intercommunication, the other end and the bottom intercommunication of U type pipe 21, the one end and the water tank 232 intercommunication of second standpipe 233, other end opening and opening are higher than U type pipe 21.
The drainage assembly 23 is equivalent to a communicating vessel, when the gas pipeline needs to be cut off and sealed, an operator firstly closes the drainage valve 235 in the drainage assembly 23, then opens the water replenishing pipe 22 to make water flow to the U-shaped pipe 21, at this time, the water in the U-shaped pipe 21 flows into the water tank 232 through the first vertical pipe 231, along with the continuous inflow of the water, the water surface starts to rise and enters the first vertical pipe 231 and the second vertical pipe 233, when the drainage pipe 236 has water to be discharged, the water in the first vertical pipe 231 enters the U-shaped pipe 21 and then gradually seals the U-shaped pipe 21, in order to ensure the water sealing height of the U-shaped pipe 21, the installation height of the drainage pipe 236 in the second vertical pipe 233 is at least higher than the bending section of the U-shaped pipe 21 and lower than the bottom of a gas inlet and outlet pipe connected with the U-shaped pipe 21.
Because the isolating mechanism 2 utilizes water to prevent the gas leaked from the switch valve 1, the operating personnel is ensured not to take a gas operation blind plate device, the operation risk is greatly reduced, and the operation environment is improved.
Preferably, the water replenishing pipe 22 is provided with a main water replenishing valve 221 and a check valve 222 in series, the main water replenishing valve 221 can control the opening and closing of the water replenishing pipe 22, and the check valve 222 can prevent the water in the water replenishing pipe 22 from flowing backwards. The main water replenishing valve 221 is used for controlling the opening and closing of the water replenishing pipe 22, so that the operation is simple and the control is convenient. The check valve 222 is provided to improve safety, and the check valve 222 can prevent water in the water replenishing pipe 22 from flowing backwards, so that the risk of gas leakage from the water replenishing pipe 22 is avoided.
It can be understood that, in order to block the gas pipeline as soon as possible, the opening degree of the main water replenishing valve 221 is large, when the water level in the U-shaped pipe 21 reaches a proper position, slow water replenishing is required to maintain the height of the water level, for convenience of operation, the water replenishing pipe 22 is further provided with an auxiliary water replenishing valve 223, the auxiliary water replenishing valve 223 is connected in parallel with the main water replenishing valve 221, and when slow water replenishing is required, an operator can directly close the main water replenishing valve 221 and open the auxiliary water replenishing valve 223. The auxiliary water replenishing valve 223 greatly simplifies the actions of an operator, does not need to adjust the opening degree of the main water replenishing valve 221, improves the efficiency, and reduces the risk caused by improper adjustment of the opening degree of the water replenishing valve 221 by the operator.
After the water level in the partition mechanism 2 reaches the partition effect, in order to ensure safety, residual gas in the gas inlet pipe 100 and the gas outlet pipe 101 needs to be discharged. The partition device further comprises a pressure relief assembly 24, and the pressure relief assembly 24 is arranged on the air inlet pipe 100 and/or the air outlet pipe 101. Since both the on-off valve 1 and the blind plate valve 31 are in the closed state at this time, the pressure relief assembly 24 is preferably disposed between the on-off valve 1 and the U-shaped pipe 21 and between the U-shaped pipe 21 and the blind plate valve 31.
Preferably, the pressure relief assembly 24 includes a pressure relief tube 241, a pressure relief valve 242, and a sensing head 243. The pressure relief pipe 241 is provided in the intake pipe 100 and/or the outlet pipe 101, the pressure relief valve 242 is provided in the pressure relief pipe 241 and controls opening and closing of the pressure relief pipe 241, and the detection head 243 can detect a gas component passing through the pressure relief pipe 241. When residual gas in the gas outlet pipe 101 needs to be discharged, the pressure release valve 242 of the gas outlet pipe 101 is opened, residual gas in the gas outlet pipe 101 can be discharged through the pressure release pipe 241 of the gas outlet pipe 101, and the pressure release valve 242 can be closed by an operator after the residual gas is exhausted.
In order to ensure that residual gas in the pipeline can be discharged as soon as possible, the blind plate mechanism 3 further comprises purging components 32, the purging components 32 are arranged on two sides of the blind plate valve 31 and communicated with the gas outlet pipe 101, and the purging components 32 can fill nitrogen into the gas outlet pipe 101 and replace the residual gas with the nitrogen. When an operator closes the switch valve 1 and successfully seals the partition device 2 with water, nitrogen is filled into the pipelines on two sides of the blind plate valve 31 through the purging assembly 32, coal gas in the gas outlet pipe 101 close to the partition mechanism 2 is discharged through the pressure relief assembly 24, coal gas at the other end is discharged from a user end, the operator can detect the gas in the gas outlet pipe 101 through the detection head 243, when the gas does not contain coal gas components, the purging assembly 32 can be closed, then the blind plate valve 31 in the blind plate mechanism 3 is operated, and therefore the operation without coal gas is achieved.
The purging assembly 32 includes a purging pipe 321 and a purging valve 322, the purging pipe 321 is communicated with the air outlet pipe 101, and the purging valve 322 is disposed on the purging pipe 321 and can control opening and closing of the purging pipe 321. Preferably, the gas (purge gas) charged into the gas outlet pipe 101 is nitrogen gas for replacing the gas.
Preferably, the first vertical pipe 231 is provided with an access valve 239, and the access valve 239 is used for controlling the opening and closing of the first vertical pipe 231. When drainage assembly 23 breaks down and needs to be overhauled, in order to prevent that coal gas from leaking from first standpipe 231, operating personnel can close service valve 239, wait to get rid of the trouble after, open service valve 239 can. Similarly, the position of the water replenishing pipe 22 close to the U-shaped pipe 21 is also provided with an inspection valve 239 for cutting off the connection with the U-shaped pipe 21 when the water replenishing pipe 22 is inspected.
Optionally, the water replenishing pipe 22 is provided with a folded part at one end, and the folded part is matched with the check valve 222 for use, so that gas can be prevented from reversely flowing to the water replenishing pipe.
Preferably, the drainage assembly 23 further comprises a high-level drainage pipe 236, the high-level drainage pipe 236 is disposed on the second vertical pipe 233, and the connection position of the high-level drainage pipe 236 and the second vertical pipe 233 is higher than the bending section of the U-shaped pipe 21. The high level drain pipe 236 can drain water when the water level is high, and prevent the water level in the U-shaped pipe 21 from flowing into the inlet pipe 100 and the outlet pipe 101 too high.
Preferably, the drainage assembly 23 further comprises a low-level drainage pipe 234 and a drainage valve 235, the low-level drainage pipe 234 is disposed on the second vertical pipe 233, and a joint of the low-level drainage pipe 234 and the second vertical pipe 233 is lower than the bottom end of the U-shaped pipe 21. The drain valve 235 is disposed on the low-level drain pipe 234, and the drain valve 235 controls opening and closing of the drain pipe. When the U-shaped pipe 21 needs to be ventilated, the water in the drainage assembly 23 needs to be drained to enable the water level to be lower than the bottom end of the U-shaped pipe 21, the drainage valve 235 is opened, the water flows out from the low-level drainage pipe 234, and the water seal height of the drainage assembly 23 can seal the coal gas in the U-shaped pipe 21 and prevent the coal gas from leaking out from the low-level drainage pipe 234.
The partition devices provided in this embodiment are all manual valves, the partition mechanism 2 is divided into a water-sealing state and a ventilating state, and when an operator wants to keep the partition mechanism 2 in the water-sealing state, the operation includes the following steps:
1. and after the gas user end is determined to stop production and fire, closing the switch valve 1.
2. The drain valve 235 is closed and the main water replenishing valve 221 is opened.
The U-shaped pipe 21 is filled with water to cut off the gas, so that the gas cannot enter a user side even if the switch valve 1 leaks gas.
3. When water flows out of the high-level drain pipe 236, the main water replenishing valve 221 is closed.
4. The pressure relief tube 241 in the pressure relief assembly 24 of the outlet tube 101 is opened.
5. And opening a purge valve 322 on one side of the blind plate valve 31 close to the partition mechanism 2 and introducing nitrogen into the gas outlet pipe 101 through a purge pipe 321.
6. The gas content in the pipe is detected at the user end and the detection head 243 of the pressure relief assembly 24 of the gas outlet pipe 101.
7. And when the gas content in the pipe is qualified, closing the purging valve 322.
The nitrogen is used for replacing the gas, so that no gas residue is ensured in the pipeline, and the safety of operators is ensured to the maximum extent.
8. The blind plate valve 31 is closed.
Because an operator cannot know whether the U-shaped pipe 21 is always in a water sealing state in real time, if the partition device fails, the height of the water level in the U-shaped pipe 21 is not enough, and gas leaks to the gas outlet pipe 101 (gas stop pipe). In order to ensure the safety of the gas stopping pipe or user side maintenance and operation personnel, the blind plate valve 31 is closed on the basis of the partition mechanism 2, so that the safety of the whole partition device is higher, which is equivalent to double insurance, and the risk of gas accidents caused by gas leakage is greatly reduced.
When the operator wants to keep the partition mechanism 2 in the ventilation state, the operation comprises the following steps:
1. and (5) opening the blind plate valve 31 after the coal gas user finishes overhauling.
2. And opening a purge valve 322 on one side of the blind plate valve 31 close to the partition mechanism 2 and introducing nitrogen into the gas outlet pipe 101 through a purge pipe 321.
3. And detecting the air content in the pipe at the user end.
4. And when the air content in the pipe is qualified, closing the purging valve 322.
Before the gas is introduced, the air in the pipeline needs to be discharged so as to prevent the air and the gas from being mixed and accidents from happening.
5. The drain valve 235 is opened.
6. And when no water flows out of the high-level drain pipe 236 and the low-level drain pipe 234, the auxiliary water replenishing valve 223 is opened.
7. The on-off valve 1 is slightly opened.
8. And detecting the content of the coal gas in the pipe at the user side.
9. And after the content of the coal gas in the pipe is detected to be qualified, the switch valve 1 is fully opened.
And (3) purging nitrogen in the pipeline by using small-flow gas, and fully opening the switch valve 1 when the gas content at the user side reaches a qualified value, so that the user can use the gas normally.
Second embodiment
The embodiment is based on the first embodiment, and the partition mechanism 2 is improved, so that the partition device can control each valve according to the liquid level height.
Preferably, the partition mechanism 2 includes a first liquid level monitoring assembly 237 and a second liquid level monitoring assembly 238, the first liquid level monitoring assembly 237 includes a first monitoring point and a second monitoring point which are vertically arranged, and a connection point of the low-level drain pipe 234 and the second vertical pipe 233 is located between the first monitoring point and the second monitoring point. The second liquid level monitoring assembly 238 includes a third monitoring point and a fourth monitoring point which are vertically arranged, and the connection position of the high-level drain pipe 236 and the second vertical pipe 233 is located between the third monitoring point and the fourth monitoring point.
When a water level signal is present at the first monitoring point, it indicates that the water level in the second standpipe 233 is above the level of the first monitoring point. When the first monitoring point has no water level signal and the second monitoring point has a water level signal, it indicates that the water level in the second vertical pipe 233 is between the first monitoring point and the second monitoring point. When both the first monitoring point and the second monitoring point have no water level signal, it indicates that the water level in the second standpipe 233 is below the level of the second monitoring point. Similarly, the principle of the second liquid level monitoring module 238 is the same as that of the first liquid level monitoring module, and thus the description thereof is omitted.
As can be seen, the first liquid level monitoring unit 237 can monitor the water level when the partition mechanism 2 is in the air-open state, and the second liquid level monitoring unit 238 can monitor the water level when the partition mechanism 2 is in the water-close state.
Preferably, the partition mechanism 2 further includes an electric control component, and the electric control component is electrically connected to the switching valve 1, the main water replenishing valve 221, the drain valve 235, the first liquid level monitoring component 237 and the second liquid level monitoring component 238 and can control opening and closing of the water replenishing valve 221 and the drain valve 235.
The control logic of the electric control assembly is as follows:
1. when the drain valve 235 is opened, the blocking mechanism 2 is in a ventilation state, the first liquid level monitoring assembly 237 starts to monitor the water level in the second vertical pipe 233, when the water level is lower than the second monitoring point, the main water replenishing valve 221 is opened for replenishing water, and when the water level reaches the first monitoring point, the main water replenishing valve 221 is closed.
2. When the drain valve 235 is closed, the blocking mechanism 2 is in a water-sealing state, the second liquid level monitoring assembly 238 starts to monitor the water level in the second vertical pipe 233, when the water level is lower than the fourth monitoring point, the main water replenishing valve 221 is opened for replenishing water, and when the water level reaches the third monitoring point, the main water replenishing valve 221 is closed.
3. When the on-off valve 1 is in the open state, the drain valve 235 cannot be closed.
4. When the on-off valve 1 is in the closed state, the drain valve 235 cannot be automatically opened, and needs to be manually opened.
Preferably, the partition mechanism 2 further comprises an alarm component, wherein the alarm component comprises a buzzer and/or a warning light, and the alarm component is electrically connected with the first liquid level monitoring component 237 and the second liquid level monitoring component 238. When the water level is not within the monitoring range of the first liquid level monitoring assembly 237 and the second liquid level monitoring assembly 238, the alarm assembly starts to alarm, activates the buzzer and/or flashes the warning light.
Since the first liquid level monitoring assembly 237 and the second liquid level monitoring assembly 238 can monitor the water level in the second vertical pipe 233 in real time, there is no problem of gas leakage caused by no water in the drain assembly 23 or no water in the U-shaped pipe 21, and the operation steps in this embodiment are simplified compared to those in the first embodiment.
When the operator wants to keep the partition mechanism 2 in the water sealing state, the operation comprises the following steps:
1. and after the gas user end is determined to stop production and fire, closing the switch valve 1.
2. The drain valve 235 is closed and the main water replenishing valve 221 is opened.
3. When water flows out of the high-level drain pipe 236, the main water replenishing valve 221 is closed.
4. The pressure relief tube 241 in the pressure relief assembly 24 is opened in the outlet tube 101.
5. And opening a purge valve 322 on one side of the blind plate valve 31 close to the partition mechanism 2 and introducing nitrogen into the gas outlet pipe 101 through a purge pipe 321.
6. The gas content in the pipe is detected at the user end and the detection head 243 of the pressure relief assembly 24.
7. And when the gas content in the pipe is qualified, closing the purging valve 322.
When the operator wants to keep the partition mechanism 2 in the ventilation state, the operation comprises the following steps:
1. and (3) after the gas user end is determined to be overhauled, opening the purge valve 322 on the side of the blind plate valve 31 close to the partition mechanism 2 and introducing nitrogen into the gas outlet pipe 101 through the purge pipe 321.
2. And detecting the air content in the pipe at the user end.
3. And when the air content in the pipe is qualified, closing the purging valve 322.
4. The drain valve 235 is opened.
5. The on-off valve 1 is slightly opened.
6. And detecting the content of the coal gas in the pipe at the user side.
7. And after the content of the coal gas in the pipe is detected to be qualified, the switch valve 1 is fully opened.
The above description is only a preferred embodiment of the present invention, and for those skilled in the art, the present invention should not be limited by the description of the present invention, which should be interpreted as a limitation.
Claims (10)
1. A partition mechanism, comprising:
the device comprises a U-shaped pipe (21), wherein two ends of the U-shaped pipe (21) are respectively connected with an air inlet pipe (100) and an air outlet pipe (101);
the water replenishing pipe (22), the water replenishing pipe (22) is communicated with the U-shaped pipe (21);
the drainage assembly (23) comprises a first vertical pipe (231), a water tank (232) and a second vertical pipe (233), one end of the first vertical pipe (231) is communicated with the water tank (232), the other end of the first vertical pipe is communicated with the bottom of the U-shaped pipe (21), one end of the second vertical pipe (233) is communicated with the water tank (232), and the other end of the second vertical pipe is opened and is higher than the U-shaped pipe (21).
2. The partition mechanism according to claim 1, wherein the water supply pipe (22) is provided with a main water supply valve (221) and a check valve (222) in series in sequence, the main water supply valve (221) can control the opening and closing of the water supply pipe (22), and the check valve (222) can prevent the water in the water supply pipe (22) from flowing backwards.
3. The partition mechanism according to claim 1, further comprising a pressure relief assembly (24), wherein the pressure relief assembly (24) is disposed on the air inlet pipe (100) and/or the air outlet pipe (101).
4. -partition mechanism according to claim 3, characterized in that the pressure relief assembly (24) comprises:
the pressure relief pipe (241), the pressure relief pipe (241) is set up on the said inlet pipe (100) and/or the said outlet pipe (101);
a pressure relief valve (242), wherein the pressure relief valve (242) is arranged on the pressure relief pipe (241) and is used for controlling the opening and closing of the pressure relief pipe (241);
a detection head (243), the detection head (243) being capable of detecting a gas component passing through the pressure relief tube (241).
5. Partition mechanism according to claim 1, wherein the drainage assembly (23) further comprises:
the high-position drain pipe (236) is arranged on the second vertical pipe (233), and the joint of the high-position drain pipe (236) and the second vertical pipe (233) is higher than the bent section of the U-shaped pipe (21) and lower than the bottoms of the air inlet pipe (100) and the air outlet pipe (101) connected with the U-shaped pipe (21).
6. -partition mechanism according to claim 5, characterized in that the drainage assembly (23) further comprises:
the low-level drain pipe (234), the low-level drain pipe (234) is arranged on the second vertical pipe (233), and the joint of the low-level drain pipe (234) and the second vertical pipe (233) is lower than the bottom end of the U-shaped pipe (21);
and the drain valve (235) is arranged on the low-level drain pipe (234), and the drain valve (235) is used for controlling the opening and closing of the drain pipe and switching the running state (ventilation and water sealing) of the U-shaped pipe (21). .
7. The partition mechanism of claim 6, further comprising:
the first liquid level monitoring assembly (237) comprises a first monitoring point and a second monitoring point which are vertically arranged, and the joint of the low-level drain pipe (234) and the second vertical pipe (233) is positioned between the first monitoring point and the second monitoring point;
the second liquid level monitoring assembly (238) comprises a third monitoring point and a fourth monitoring point which are vertically arranged, and the joint of the high-level drain pipe (236) and the second vertical pipe (233) is positioned between the third monitoring point and the fourth monitoring point.
8. The partition mechanism according to claims 1-7, wherein a service valve (239) is arranged on the first vertical pipe (231), and the service valve (239) is used for controlling the opening and closing of the first vertical pipe (231).
9. Partition device comprising a partition means according to any one of claims 1-8, further comprising a blind means (3), said blind means (3) being arranged on said outlet duct (101).
10. -partition device according to claim 9, characterised in that the blind means (3) comprise:
the blind plate valve (31), the said blind plate valve (31) can control the opening and closing of the said outlet duct (101);
the purging component (32) is arranged on two sides of the blind plate valve (31) and communicated with the air outlet pipe (101), and the purging component (32) can fill gas into the air outlet pipe (101).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110156999.9A CN112879608A (en) | 2021-02-04 | 2021-02-04 | Partition mechanism and partition device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110156999.9A CN112879608A (en) | 2021-02-04 | 2021-02-04 | Partition mechanism and partition device |
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| Publication Number | Publication Date |
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| CN112879608A true CN112879608A (en) | 2021-06-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110156999.9A Pending CN112879608A (en) | 2021-02-04 | 2021-02-04 | Partition mechanism and partition device |
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| Country | Link |
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| CN (1) | CN112879608A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115451343A (en) * | 2022-09-20 | 2022-12-09 | 陕西龙门钢铁有限责任公司 | U-shaped water seal leakage-proof device |
| CN115773472A (en) * | 2022-11-30 | 2023-03-10 | 中冶南方都市环保工程技术股份有限公司 | Structure and method for monitoring water level of gas pipeline water seal on line |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0861531A (en) * | 1994-08-22 | 1996-03-08 | Nippon Steel Corp | Water level detector for V-shaped water seal valve |
| CN2713250Y (en) * | 2004-04-29 | 2005-07-27 | 宝山钢铁股份有限公司 | Water-sealed valve for gas conduit |
| CN201359119Y (en) * | 2009-02-23 | 2009-12-09 | 宝山钢铁股份有限公司 | Multi-stage box body sealed gas conduit water-sealed valve device |
| CN202852079U (en) * | 2012-09-19 | 2013-04-03 | 广东韶钢松山股份有限公司 | U type pipeline coal gas water seal device |
| CN207554880U (en) * | 2017-10-31 | 2018-06-29 | 马鞍山钢铁股份有限公司 | A kind of blast furnace piped gas quick cutting device |
| CN110643771A (en) * | 2019-03-15 | 2020-01-03 | 广东韶钢松山股份有限公司 | Method for efficiently driving coal gas of blast furnace hot blast stove coal gas system |
-
2021
- 2021-02-04 CN CN202110156999.9A patent/CN112879608A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0861531A (en) * | 1994-08-22 | 1996-03-08 | Nippon Steel Corp | Water level detector for V-shaped water seal valve |
| CN2713250Y (en) * | 2004-04-29 | 2005-07-27 | 宝山钢铁股份有限公司 | Water-sealed valve for gas conduit |
| CN201359119Y (en) * | 2009-02-23 | 2009-12-09 | 宝山钢铁股份有限公司 | Multi-stage box body sealed gas conduit water-sealed valve device |
| CN202852079U (en) * | 2012-09-19 | 2013-04-03 | 广东韶钢松山股份有限公司 | U type pipeline coal gas water seal device |
| CN207554880U (en) * | 2017-10-31 | 2018-06-29 | 马鞍山钢铁股份有限公司 | A kind of blast furnace piped gas quick cutting device |
| CN110643771A (en) * | 2019-03-15 | 2020-01-03 | 广东韶钢松山股份有限公司 | Method for efficiently driving coal gas of blast furnace hot blast stove coal gas system |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115451343A (en) * | 2022-09-20 | 2022-12-09 | 陕西龙门钢铁有限责任公司 | U-shaped water seal leakage-proof device |
| CN115773472A (en) * | 2022-11-30 | 2023-03-10 | 中冶南方都市环保工程技术股份有限公司 | Structure and method for monitoring water level of gas pipeline water seal on line |
| CN115773472B (en) * | 2022-11-30 | 2025-01-14 | 中冶南方都市环保工程技术股份有限公司 | Structure and method for monitoring water level of gas pipeline through water seal on line increase |
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Application publication date: 20210601 |