U-shaped gas water seal liquid level control device and method

Abstract

The invention discloses a U-shaped gas water seal liquid level control device and method.The U-shaped gas water seal liquid level control device comprises a U-shaped connecting pipe, a gas pipe, a water supplementing pipe and magnetic turning plate liquid level meters, the two ends of the U-shaped connecting pipe are connected with the gas pipe, the water supplementing pipe is communicated with the U-shaped connecting pipe, the water supplementing pipe is provided with a water supplementing valve, and the magnetic turning plate liquid level meters are installed on the two sides of the U-shaped connecting pipe; and a liquid level column of the magnetic turning plate liquid level meter is made of a transparent material. The magnetic turning plate liquid level meter displays the liquid level condition in the U-shaped connecting pipe in real time, the water level state can be seen in time in the water injection process of the gas water seal, the water supplementing condition in the water seal can be visually judged from the outside, and the water supplementing condition can be found in time once a water supplementing pipe breaks down and has no water source; in addition, when the gas water seal is full of water, water does not need to be supplemented continuously, and waste of water resources is avoided. Meanwhile, no overflow pipe is communicated with the outside, so that the problem of personnel gas poisoning accidents caused by gas leakage is avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of coal gas pipeline safety protection, in particular to a U-shaped coal gas water seal liquid level control device and method. BACKGROUND

[0002] In the metallurgical industry, the water seal device of the coal gas pipeline is an important component to ensure safe production. The coal gas water seal is a key safety device used in conjunction with the butterfly valve, mainly used to cut off the gas source when the user is overhauled. Under normal conditions, the coal gas water seal transports gas through the pipeline; under overhaul conditions, water injection is needed to block the gas flow.

[0003] In the prior art, the water injection and water level monitoring of the coal gas water seal mainly rely on manual operation and overflow pipe observation; the water injection valve of the water injection pipe needs to be manually operated to inject water into the "U"-shaped water seal until the overflow pipe continuously discharges water, indicating that the water seal is full of water. In this process, the operator needs to be stationed at the overflow port throughout the process to determine the water injection progress by the amount of overflow water, and to maintain the overflow state by adjusting the bypass valve opening to prevent the coal gas water seal from being broken due to lack of water, causing gas leakage.

[0004] However, the above method cannot directly observe the water level inside the water seal, and cannot timely detect the lack of water source if the water injection pipe fails; in addition, the coal gas water seal needs to maintain overflow to cause water resource waste during continuous water injection; at the same time, a person needs to be present at the overflow pipe of the coal gas water seal to observe the overflow situation, and if a breakage occurs, the overflow port has no anti-leakage facility, which may cause personnel gas poisoning accidents. SUMMARY

[0005] In order to overcome the above-mentioned shortcomings of the prior art, the present application provides a U-shaped coal gas water seal liquid level control device and method.

[0006] The technical scheme adopted by the present application to solve its technical problems is: a U-shaped coal gas water seal liquid level control device, characterized by comprising a U-shaped connecting pipe, a coal gas pipe, a water injection pipe and a magnetic float liquid level meter, both ends of the U-shaped connecting pipe are connected with the coal gas pipe, the water injection pipe is communicated with the U-shaped connecting pipe, the water injection pipe is provided with a water injection valve, magnetic float liquid level meters are installed on both sides of the U-shaped connecting pipe, and the liquid level column of the magnetic float liquid level meter is made of transparent material.

[0007] As a further improvement of the present application: a controller is further included, the magnetic float liquid level meter, the water injection valve and the water drain are respectively electrically connected with the controller; when the liquid level in the U-shaped connecting pipe is lower than the water seal liquid level, the controller controls the water injection valve to open, so that the water injection pipe automatically injects water until the liquid level is equal to the water seal liquid level.

[0008] As a further improvement of the present application: two magnetic float liquid level meters are provided, and the two magnetic float liquid level meters are respectively installed vertically on the left and right sides of the U-shaped connecting pipe.

[0009] As a further improvement of the present application: further comprising a gas water drainer, which communicates with the bottom of the U-shaped connecting pipe. Through the rapid drainage function of the anti-leakage type gas water drainer, the water storage in the U-shaped connecting pipe can be efficiently discharged, ensuring the safety and convenience of the gas supply opening and closing operation, and simplifying the maintenance and daily maintenance process. Through the real-time display of the liquid level by the magnetic flap liquid level meter, the operator can monitor the liquid level in real time without approaching the gas water seal. At the same time, the double sealing structure of the anti-leakage type gas water drainer is combined with the fully enclosed drainage design to completely eliminate the hidden danger of gas diffusion in the traditional open drainage device, realize leak-free drainage operation, and completely eliminate the risk of poisoning of surrounding personnel caused by gas diffusion from the root, significantly improving the safety of the operation environment.

[0010] As a further improvement of the present application: the gas water drainer is provided with two drainage valves.

[0011] As a further improvement of the present application: the water replenishing pipe is provided with a check valve, which is installed between the U-shaped connecting pipe and the water replenishing valve. By adding a check valve to the water replenishing pipe between the U-shaped connecting pipe and the water replenishing valve, when the water replenishing valve is opened, the check valve ensures that the water flow only flows in a fixed direction from the water replenishing valve to the U-shaped connecting pipe through the forced one-way flow mechanism, thereby completely eliminating the risk of backflow and significantly improving the operation stability and reliability of the water replenishing system.

[0012] As a further improvement of the present application: the water replenishing pipe is provided with two water replenishing valves.

[0013] As a further improvement of the present application: the water replenishing pipe is provided with a bypass pipeline, which is provided with a manual valve.

[0014] As a further improvement of the present application: the two ends of the U-shaped connecting pipe are welded to communicate with the gas pipe.

[0015] The present application also provides a U-shaped gas water seal liquid level control method, comprising:

[0016] obtaining the water seal liquid level of the U-shaped connecting pipe;

[0017] obtaining the real-time liquid level of the U-shaped connecting pipe, which is provided with a magnetic flap liquid level meter, and obtaining the real-time liquid level of the U-shaped connecting pipe through the magnetic flap liquid level meter;

[0018] if the real-time liquid level in the U-shaped connecting pipe is lower than the water seal liquid level, opening the water replenishing valve and replenishing water into the U-shaped connecting pipe through the water replenishing pipe, and when the real-time liquid level is equal to the water seal liquid level, closing the water replenishing valve;

[0019] If the real-time liquid level in the U-shaped connecting pipe is higher than the water seal liquid level, the water supply valve is closed, and the drainage valve of the coal gas drainer is opened to drain through the coal gas drainer; when the real-time liquid level is equal to the water seal liquid level, the drainage valve is closed.

[0020] Compared with the prior art, the present application has the following beneficial effects:

[0021] 1. The liquid level column of the magnetic reed liquid level meter is made of transparent material, so that the water level state can be observed in time during the water injection process of the coal gas water seal, the water injection condition inside the water seal can be intuitively judged from the outside world, and the problem of water injection pipe failure without water source can be found in time; in addition, continuous water injection is not required when the coal gas water seal is full of water, so that water resource waste is avoided. At the same time, the overflow pipe is not connected with the outside world, so that the problem of coal gas leakage causing personnel coal gas poisoning accidents is avoided.

[0022] 2. The magnetic reed liquid level meter is installed on both sides of the U-shaped connecting pipe, and the liquid level column is made of transparent material, so that the liquid level condition in the U-shaped connecting pipe can be directly observed by the on-site operator through the transparent liquid level column, the reliability of the system is improved, the water injection amount can be accurately controlled, the problem of excessive water injection caused by missing liquid level information is avoided, water resource waste is reduced, and response measures can be taken more quickly when an abnormality occurs.

[0023] 3. The magnetic reed liquid level meter is used to detect the liquid level in the U-shaped connecting pipe in real time, and the magnetic reed liquid level meter outputs a control signal to the controller through liquid level measurement, when the liquid level in the U-shaped connecting pipe is lower than the water seal liquid level, the controller controls the water supply valve to be opened to supply water to the U-shaped connecting pipe, so that the water injection pipe automatically injects water until the liquid level is equal to the water seal liquid level, thereby realizing automatic water injection and adjusting the water seal liquid level.

[0024] 4. The present application can realize real-time visual monitoring of the water level state, significantly improve the safety and resource utilization rate, and has the advantages of simple structure, simple installation and low cost. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is a structural schematic view of the present application.

[0026] The figure legend is: 1, U-shaped connecting pipe; 2, magnetic reed liquid level meter; 3, water supply valve; 4, coal gas drainer; 5, check valve; 6, bypass pipeline; 7, water injection pipe. DETAILED DESCRIPTION

[0027] In order to make the technical problems, technical solutions and beneficial effects of the present application clearer, the present application will be further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the present application and do not limit the present application.

[0028] It is to be noted that when an element is referred to as being "fixed" or "set" on another element, it can be directly on the other element or indirectly on the other element with intervening elements. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or indirectly connected to the other element with intervening elements.

[0029] It is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like, specify relative positions or orientations of an apparatus or element as shown in the drawings, and are used only for the convenience of description and illustration and do not indicate or imply that the apparatus or element must have a particular orientation or be constructed and operated in a particular orientation, and therefore should not be construed as limiting the application.

[0030] In addition, the terms "first", "second", "third", etc. are used herein only to describe different instances of an element, and do not imply a relative importance of the elements. Thus, a "first" and a "second" element can include one or more of the elements. In the description of the application, the meaning of "a", "an" and "the" is that of one or more than one, unless specifically stated otherwise. Also, the use of the term "including", "containing" or any other variant thereof is intended to cover the non-exclusive inclusion of the elements listed, such that processes, methods, articles or apparatuses that comprise these elements are not limited to those elements, but can include other elements not expressly listed or inherent to such processes, methods, articles or apparatuses.

[0031] The application will be further described with reference to the accompanying drawings and examples:

[0032] Please refer to Figure 1 A U-shaped gas water seal liquid level control device, comprising a U-shaped connecting pipe 1, a gas pipe, a water replenishing pipe 7 and a magnetic float liquid level meter 2, both ends of the U-shaped connecting pipe 1 are connected with the gas pipe, the water replenishing pipe 7 is communicated with the U-shaped connecting pipe 1, the water replenishing pipe 7 is installed with a water replenishing valve 3, both sides of the U-shaped connecting pipe 1 are installed with the magnetic float liquid level meter 2, and the liquid level column of the magnetic float liquid level meter 2 is made of transparent material.

[0033] The magnetic float liquid level meter 2 displays the liquid level in the U-shaped connecting pipe 1 in real time, the U-shaped connecting pipe 1 is communicated with the water replenishing pipe 7 with the water replenishing valve 3, when the liquid level in the U-shaped connecting pipe 1 is lower than the water seal liquid level, the water replenishing valve 3 is opened to make the water replenishing pipe 7 to be filled with water, and when the liquid level in the U-shaped connecting pipe 1 is equal to the water seal liquid level, the water replenishing valve 3 is closed.

[0034] The liquid level column of the magnetic flap liquid level meter 2 is made of transparent material, so that the water level state can be observed in time during the water injection process of the coal gas water seal, the water injection condition inside the water seal can be judged intuitively, and the failure of the water injection pipe 7 can be found in time when there is no water source. In addition, when the coal gas water seal is full of water, there is no need for continuous water injection, which avoids waste of water resources. At the same time, the overflow pipe is not connected with the outside, which avoids the problem of coal gas leakage causing personnel poisoning accidents.

[0035] Further, the controller is electrically connected with the magnetic flap liquid level meter 2, the water injection valve 3 and the water drainer respectively; when the liquid level in the U-shaped connecting pipe 1 is lower than the water seal liquid level, the controller controls the water injection valve 3 to open, so that the water injection pipe 7 automatically injects water until the liquid level is equal to the water seal liquid level.

[0036] The liquid level in the U-shaped connecting pipe 1 is detected in real time by the magnetic flap liquid level meter 2, the magnetic flap liquid level meter 2 outputs a control signal to the controller through liquid level measurement, when the liquid level in the U-shaped connecting pipe 1 is lower than the water seal liquid level, the controller controls the water injection valve 3 to open to inject water into the U-shaped connecting pipe 1, so that the water injection pipe 7 automatically injects water until the liquid level is equal to the water seal liquid level, thereby realizing automatic water injection and adjusting the water seal liquid level.

[0037] The magnetic flap liquid level meters 2 are installed on both sides of the U-shaped connecting pipe 1, and the liquid level column is made of transparent material, so that even if the magnetic flap liquid level meter 2 cannot transmit data due to communication failure, the liquid level in the U-shaped connecting pipe 1 can still be observed directly through the transparent liquid level column by the site operator, which not only improves the reliability of the system, but also accurately controls the water injection amount, avoids the problem of excessive water injection caused by missing liquid level information, and reduces waste of water resources.

[0038] Further, the magnetic flap liquid level meter 2 is provided with two magnetic flap liquid level meters 2, which are vertically installed on the left and right sides of the U-shaped connecting pipe 1.

[0039] Further, the coal gas water drainer 4 is further provided, and the coal gas water drainer 4 is communicated with the bottom of the U-shaped connecting pipe 1. The coal gas water drainer 4 is provided with two water valves. The coal gas water drainer 4 is a leak-proof type coal gas water drainer 4.

[0040] The leak-proof type coal gas water drainer 4 can efficiently complete the water storage discharge in the U-shaped connecting pipe 1 through the rapid drainage function, which ensures the safety and convenience of the opening and closing operation of the coal gas supply, and simplifies the maintenance and daily maintenance process.

[0041] The liquid level is displayed in real time through the magnetic flap liquid level meter 2, so that the operator can monitor the liquid level in real time without approaching the coal gas water seal. At the same time, the double sealing structure of the anti-leakage coal gas drainer 4 is combined with the fully enclosed drainage design to completely eliminate the hidden danger of coal gas diffusion in the traditional open drainage device, realize leakage-free drainage operation, and completely eliminate the risk of poisoning of surrounding personnel caused by coal gas diffusion from the root, thereby significantly improving the safety of the operation environment.

[0042] Further, the two ends of the U-shaped connecting pipe 1 are welded and communicated with the coal gas pipe.

[0043] Further, the water replenishing pipe 7 is provided with a check valve 5, which is installed between the U-shaped connecting pipe 1 and the water replenishing valve 3.

[0044] By adding the check valve 5 on the water replenishing pipe 7 between the U-shaped connecting pipe 1 and the water replenishing valve 3, when the water replenishing valve 3 is opened, the check valve 5 ensures that the water flow only flows in a fixed direction from the water replenishing valve 3 to the U-shaped connecting pipe 1 through the forced one-way flow mechanism, thereby completely eliminating the risk of backflow and significantly improving the operation stability and reliability of the water replenishing system.

[0045] Further, the water replenishing pipe 7 is provided with a bypass pipe 6, and the bypass pipe 6 is provided with a manual valve.

[0046] Further, the water replenishing pipe 7 is provided with two water replenishing valves 3.

[0047] Further, the highest scale of the magnetic flap liquid level meter 2 corresponds to the full water state, and the lowest scale corresponds to the water shortage state.

[0048] When the water level reaches the highest scale of the magnetic flap liquid level meter 2, the water replenishing can be stopped, thereby reducing the waste of water resources.

[0049] If it is found that the water level of the magnetic flap liquid level meter 2 continues to rise, measures can be taken in time to control the rise by draining through the anti-leakage coal gas drainer 4 and closing the water replenishing valve 3.

[0050] If it is found that the water level of the magnetic flap liquid level meter 2 decreases, measures can be taken in time to replenish water by opening the bypass pipe 6 or the water replenishing valve 3 of the water replenishing pipe 7 to prevent the coal gas water seal from being punctured.

[0051] When it is necessary to cut off the coal gas source, first, close the two drainage valves on the coal gas drainer 4, then the U-shaped connecting pipe 1 starts to inject water through the water replenishing pipe 7, open the two water replenishing valves 3 on the water replenishing pipe 7, when the water level reaches the lower end of the magnetic flap liquid level meter 2, the water replenishing progress and effect can be observed outside; when the water level reaches the highest scale of the magnetic flap liquid level meter 2, the water replenishing can be stopped, thereby reducing the waste of water resources.

[0052] Another embodiment of the present application provides a U-shaped gas water seal liquid level control method, comprising:

[0053] Obtaining the water seal liquid level of the U-shaped connecting pipe 1;

[0054] Obtaining the real-time liquid level of the U-shaped connecting pipe 1, the U-shaped connecting pipe 1 is installed with a magnetic flap liquid level meter 2, and the real-time liquid level of the U-shaped connecting pipe 1 is obtained through the magnetic flap liquid level meter 2;

[0055] If the real-time liquid level in the U-shaped connecting pipe 1 is lower than the water seal liquid level, the water replenishing valve 3 is opened, water is replenished into the U-shaped connecting pipe 1 through the water replenishing pipe 7, and when the real-time liquid level is equal to the water seal liquid level, the water replenishing valve 3 is closed;

[0056] If the real-time liquid level in the U-shaped connecting pipe 1 is higher than the water seal liquid level, the water replenishing valve 3 is closed, and the drainage valve of the gas drainer 4 is opened, and water is drained through the gas drainer 4; when the real-time liquid level is equal to the water seal liquid level, the drainage valve is closed.

[0057] The present application can realize real-time visual monitoring of the water level state, significantly improve the safety and resource utilization rate, and has the advantages of simple structure, simple installation and low cost.

[0058] Through the magnetic flap liquid level meter 2, the liquid level state and progress can be displayed throughout the water filling, water replenishing and water draining process of the gas water seal, and measures can be taken more quickly when an abnormality occurs.

[0059] Main functions of the present application:

[0060] The present application uses a liquid level column of the magnetic flap liquid level meter made of transparent material, in the water filling process of the gas water seal, the operator can directly observe the water level change in the liquid level column from the outside, and judge the water replenishing state in the water seal in real time; when the water replenishing pipeline has a water failure, the transparent property of the liquid level column can assist in quickly identifying the abnormality, and avoid the risk of system failure caused by information lag;

[0061] In the full water working condition, the present application automatically cuts off the water replenishing valve through the highest scale threshold of the magnetic flap liquid level meter, terminates the water filling process, compared with the traditional overflow water replenishing mode, no continuous water replenishing is needed, and water resource waste is avoided. At the same time, the traditional overflow pipe structure is cancelled, a fully enclosed water seal design is adopted, the possibility of gas leakage through the open component is eliminated from the physical layer, and personnel poisoning accidents are completely avoided.

[0062] The reliability of the monitoring system is ensured by double liquid level data verification through the installation of magnetic flap liquid level meters on both sides of the U-shaped connecting pipe; the magnetic flap liquid level meter detects the liquid level in the U-shaped connecting pipe in real time, and the magnetic flap liquid level meter outputs a control signal to the controller through liquid level measurement; when the liquid level in the U-shaped connecting pipe is lower than the water seal liquid level, the controller controls the water supply valve to open to supply water to the U-shaped connecting pipe, so that the water supply pipe automatically supplies water until the liquid level is equal to the water seal liquid level, thereby realizing automatic water supply and adjusting the water seal liquid level. The present application can realize real-time visual monitoring and intelligent water supply control of the water level state, significantly improve the safety and resource utilization rate, and has the advantages of simple structure, simple installation and low cost.

[0063] The above examples are only used to illustrate the technical solutions of the present application, but not to limit it; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that the technical solutions recorded in the foregoing examples can be modified, or some or all of the technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should be covered in the scope of the claims and the specification of the present application.

Claims

1. A U-shaped gas water seal liquid level control device, characterized by: The invention comprises a U-shaped connecting pipe (1), a gas pipe, a water supply pipe (7) and a magnetic flap liquid level gauge (2); both ends of the U-shaped connecting pipe (1) are connected to the gas pipe; the water supply pipe (7) is in communication with the U-shaped connecting pipe (1); the water supply pipe (7) is provided with a water supply valve (3); and magnetic flap liquid level gauges (2) are provided on both sides of the U-shaped connecting pipe (1); and the liquid level column of the magnetic flap liquid level gauge (2) is made of a transparent material.

2. A U-shaped gas water seal liquid level control device according to claim 1, characterized in that: The invention also includes a controller, wherein the magnetic flap level gauge (2), the water supply valve (3), and the drainer are electrically connected to the controller respectively; when the liquid level in the U-shaped connecting pipe (1) is lower than the water seal liquid level, the controller controls the water supply valve (3) to open, so that water is automatically supplied to the water supply pipe (7) until the liquid level is equal to the water seal liquid level.

3. The U-shaped gas water seal liquid level control device according to claim 1, characterized in that: Two magnetic flap level gauges (2) are provided, and the two magnetic flap level gauges (2) are respectively vertically mounted on the left and right sides of the U-shaped connecting pipe (1).

4. A U-shaped gas water seal liquid level control device according to claim 1, characterized in that: It also includes a gas drainer (4), which is connected to the bottom of the U-shaped connecting pipe (1).

5. A U-shaped gas water seal liquid level control device according to claim 4, characterized in that: The gas drainer (4) is provided with two drain valves.

6. The U-shaped gas water seal liquid level control device according to claim 1, characterized in that: The water supply pipe (7) is equipped with a check valve (5), and the check valve (5) is installed between the U-shaped connecting pipe (1) and the water supply valve (3).

7. The U-shaped gas water seal liquid level control device according to claim 1, characterized in that: The water supply pipe (7) is provided with two water supply valves (3).

8. The U-shaped gas water seal liquid level control device according to claim 1, characterized in that: The water supply pipe (7) is provided with a bypass pipe (6), and the bypass pipe (6) is provided with a manual valve.

9. The U-shaped gas water seal liquid level control device according to claim 1, characterized in that: Both ends of the U-shaped connecting pipe (1) are connected to the gas pipe by welding.

10. A U-shaped gas water seal liquid level control method, characterized by: include: Get the water seal level of the U-shaped connecting pipe; Obtaining the real-time liquid level of the U-shaped connecting pipe, wherein the U-shaped connecting pipe is equipped with a magnetic flap level gauge, and obtaining the real-time liquid level of the U-shaped connecting pipe through the magnetic flap level gauge; If the real-time liquid level in the U-shaped connecting pipe is lower than the water seal level, the water supply valve is opened to supply water to the U-shaped connecting pipe through the water supply pipe. When the real-time liquid level is equal to the water seal level, the water supply valve is closed; If the real-time liquid level in the U-shaped connecting pipe is higher than the water seal level, close the water supply valve and open the drain valve of the gas drainer to drain water through the gas drainer; when the real-time liquid level is equal to the water seal level, close the drain valve.

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