A gas conduit stopper

Abstract

The utility model discloses a kind of gas pipeline water stop, it is related to gas pipeline conveying equipment technical field, comprising: water stop body and gas-liquid separation mechanism and free-floating ball type trap, gas-liquid separation mechanism is set in water stop body, to form in water stop body top air passage and bottom drain passage, air passage is communicated with gas outlet pipe, drain pipe is communicated with drain passage;Free-floating ball type trap is installed in the bottom of drain pipe, to form liquid storage cavity in drain pipe, after the water of liquid storage cavity exceeds design height, drive free-floating ball type trap's float ball to rise and then open free-floating ball type trap and discharge water exceeding design height from the drain port of free-floating ball type trap, without manual intervention, can automatically control drainage according to the change of water level in liquid storage cavity, improve the timeliness and efficiency of drainage, ensure that ponding in pipeline system does not too much affect operation.

Description

TECHNICAL FIELD

[0001] The utility model relates to gas pipeline conveying equipment technical field, especially a kind of gas pipeline water stop. BACKGROUND

[0002] Gas is widely used in industrial production, and industrial gas has certain requirements on gas quality, including water content. At present, in the design of industrial gas pipeline, a drying device is usually arranged after the gas compressor to reduce the moisture of the gas source. The water generated in the gas pipeline network due to condensation and other reasons is periodically discharged through the drain valve at the lowest point of the pipeline.

[0003] However, the existing drainage using drain valve has many problems: low drainage efficiency, manual or electric opening of the drain valve is required for drainage operation; only periodic drainage is possible, and it is difficult to deal with sudden water accumulation; when there are many drain points in the gas pipeline system, the control is complex and the safety is not high. UTILITY MODEL CONTENT

[0004] The utility model aims to provide a kind of gas pipeline water stop, solve the problems of low efficiency, unable to deal with sudden water accumulation, complex control and low safety of the existing gas pipeline using drain valve, realize automatic drainage and prevent liquid in the pipeline from flowing with gas.

[0005] To achieve the above-mentioned purpose, the utility model provides the following scheme:

[0006] The utility model provides a kind of gas pipeline water stop, which is installed at the local low point of the gas pipeline system, comprising: water stop body, gas-liquid separation mechanism and free-floating ball type drain valve, the water stop body includes air inlet pipe, air outlet pipe and drain pipe, the air inlet pipe and air outlet pipe are arranged on both sides of the water stop body, the drain pipe is arranged at the bottom end of the water stop body, the air inlet pipe and the air outlet pipe are detachably and sealingly connected with the gas pipeline system and communicate with each other;The gas-liquid separation mechanism is arranged in the water stop body to form an airflow passage at the top and a drain passage at the bottom in the water stop body, the airflow passage communicates with the air outlet pipe, and the drain pipe communicates with the drain passage;The free-floating ball type drain valve is installed at the bottom of the drain pipe to form a liquid storage cavity in the drain pipe, when the water in the liquid storage cavity exceeds the design height, the free-floating ball type drain valve is driven to rise and open the free-floating ball type drain valve, and the water exceeding the design height is discharged from the drain port of the free-floating ball type drain valve.

[0007] Preferably, the water stopper body further comprises a maintenance pipe and a sealing cover, the maintenance pipe is arranged at the top end of the water stopper body and coaxially arranged with the drain pipe, the air inlet pipe and the air outlet pipe are horizontally coaxially arranged, the top of the maintenance pipe is provided with a maintenance opening, and the sealing cover is detachably and sealingly connected to the maintenance opening.

[0008] Preferably, the gas-liquid separation mechanism comprises an inner core pipe, one end of the inner core pipe is sealingly connected and communicated with the air outlet pipe, and the other end of the inner core pipe extends into the maintenance pipe to form an air flow channel around the outer periphery of the inner core pipe.

[0009] Preferably, the inner core pipe comprises a vertical pipe and a horizontal pipe which are integrally connected and communicated, and the horizontal pipe is vertically arranged with the vertical pipe, the horizontal pipe is sealingly connected and communicated with the air outlet pipe, and the vertical pipe extends into the maintenance pipe and is coaxially arranged with the maintenance pipe, so that the air flow channel forms an annular air flow channel.

[0010] Preferably, the diameter of the maintenance pipe is the same as that of the drain pipe, the diameter of the maintenance pipe is 1.4-1.6 times the diameter of the air inlet pipe, the diameter of the air inlet pipe is the same as that of the air outlet pipe, the diameter of the vertical pipe is the same as that of the horizontal pipe, and the outer diameter of the horizontal pipe is the same as the inner diameter of the air outlet pipe.

[0011] Preferably, the height of the maintenance pipe is greater than or equal to 2 times the diameter of the air inlet pipe, and the distance between the top opening of the vertical pipe and the maintenance opening is greater than or equal to the diameter of the air inlet pipe.

[0012] Preferably, the air inlet pipe and the air outlet pipe are connected to the gas pipeline system in a flange connection or a threaded connection.

[0013] Preferably, the sealing cover is connected to the maintenance pipe through a flange.

[0014] Preferably, the bottom surface of the sealing cover is provided with a hydrophobic flow guide structure to guide the water condensed and separated out from the bottom surface of the sealing cover to the inner wall of the maintenance pipe and flow downward into the liquid storage cavity.

[0015] Preferably, it further comprises a slag discharge port arranged at the bottom of the drain pipe.

[0016] The utility model discloses the following technical effects are obtained relative to the prior art:

[0017] The utility model discloses a gas pipeline water stopper, the setting of gas-liquid separation mechanism effectively realizes gas-liquid separation function, and the gas and liquid are guided to different channels respectively, avoid liquid flowing with gas together, guarantee the purity of gas delivery, and make liquid can smoothly discharge, maintain pipeline system normal operation. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or prior art, below will be to the drawing needed in the embodiment used briefly introduce, obviously, the drawing in the following description only some embodiments of the utility model, for ordinary skilled person in the art comes, under the premise of not paying creative labor, can also obtain other drawings according to these drawings.

[0019] Fig. 1 The utility model provides a gas pipeline water stopper's structural schematic diagram;

[0020] Fig. 2 The utility model provides a gas pipeline water stopper's top view;

[0021] Fig. 3 The utility model provides a gas pipeline water stopper's maintenance opening installation schematic view;

[0022] In the drawing: 1, inlet pipe;2, first connecting flange;3, maintenance pipe;4, maintenance opening;5, inner core pipe;6, second connecting flange;7, outlet pipe;8, drain pipe;9, free floating ball type trap;10, float ball;11, drain;12, deslagging port. DETAILED DESCRIPTION

[0023] The technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model, obviously, the described embodiment only is a part of the embodiment of the utility model, not all the embodiment. Based on the embodiment in the utility model, all other embodiments obtained by ordinary skilled person in the art without making creative labor belong to the range of protection of the utility model.

[0024] The utility model discloses a gas pipeline water stopper, solve the low efficiency, cannot deal with the problem such as sudden change of accumulated water, control complexity and low safety and so on that the existing gas pipeline adopts drain valve to drain, realize automatic drainage and prevent liquid in the pipeline from flowing with gas.

[0025] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0026] This utility model provides a gas pipeline water stopper, such as Figs. 1-3 As shown, the device, installed at a local low point in the gas pipeline system, includes: a water stop body, a gas-liquid separation mechanism, and a free-floating ball-type drain valve 9. The water stop body includes an inlet pipe 1, an outlet pipe 7, and a drain pipe 8. The inlet pipe 1 and the outlet pipe 7 are located on both sides of the water stop body, and the drain pipe 8 is located at the bottom of the water stop body. The inlet pipe 1 and the outlet pipe 7 are detachably and sealingly connected to and communicate with the gas pipeline system. The gas-liquid separation mechanism is located within the water stop body to form an airflow channel at the top and a drain channel at the bottom within the water stop body. The airflow channel and the outlet pipe... 7. The drain pipe 8 is connected to the drain channel. A free-floating ball-type steam trap 9 is installed at the bottom of the drain pipe 8 to form a liquid storage chamber. When the water in the storage chamber exceeds the design height, it causes the float 10 of the free-floating ball-type steam trap 9 to rise, opening the valve and discharging the excess water from the drain port 11. This structural design makes the connection between the gas pipeline stop valve and the gas pipeline system convenient and reliable, facilitating installation, disassembly, and maintenance, while ensuring stable gas transmission between the pipeline system and the stop valve. The gas-liquid separation mechanism effectively achieves gas-liquid separation, guiding gas and liquid to different channels to prevent liquid from flowing with gas, ensuring the purity of gas transmission, and allowing liquid to drain smoothly, maintaining the normal operation of the pipeline system. This operation of the free-floating ball-type steam trap 9 achieves automatic drainage without manual intervention. It automatically controls drainage based on changes in the water level in the storage chamber, improving the timeliness and efficiency of drainage and ensuring that excessive water accumulation in the pipeline system does not affect operation.

[0027] In a preferred embodiment, the water stopper body further includes an inspection pipe 3 and a sealing cap. The inspection pipe 3 is located at the top of the water stopper body and is coaxially arranged with the drain pipe 8. The air inlet pipe 1 and the air outlet pipe 7 are horizontally coaxially arranged. An inspection port 4 is provided at the top of the inspection pipe 3, and the sealing cap is detachably and sealingly connected to the inspection port 4. The arrangement of the inspection pipe 3 and the sealing cap facilitates the inspection and maintenance of the water stopper's interior. The coaxial arrangement of the inspection pipe 3 and the drain pipe 8, as well as the horizontally coaxial arrangement of the air inlet pipe 1 and the air outlet pipe 7, makes the overall structure of the water stopper more regular and reasonable, which is conducive to installation and the flow of gas and liquid.

[0028] In a preferred embodiment, the gas-liquid separation mechanism includes an inner core tube 5, one end of which is sealed and connected to the outlet pipe 7, and the other end extends into the inspection pipe 3 to form an airflow channel on the outer periphery of the inner core tube 5. This arrangement of the inner core tube 5 clarifies the specific structure of the gas-liquid separation mechanism. By forming an airflow channel on its outer periphery, the gas-liquid separation effect is further optimized, and the gas can be discharged more smoothly through the airflow channel, thereby improving the gas delivery efficiency.

[0029] In a preferred embodiment, the inner core tube 5 includes an integrally connected and communicating vertical tube and a horizontal tube, with the horizontal tube being perpendicular to the vertical tube. The horizontal tube is sealed and connected to the air outlet tube 7. The vertical tube extends into the inspection tube 3 and is coaxially arranged with the inspection tube 3, so that the airflow channel forms an annular airflow channel. The structure composed of the vertical tube and the horizontal tube, as well as the formation of the annular airflow channel, make the flow of gas in the water stopper more uniform and stable, enhance the gas-liquid separation effect, and further improve the working performance of the water stopper.

[0030] In a preferred embodiment, the inspection pipe 3 and the drain pipe 8 have the same diameter. The diameter of the inspection pipe 3 is 1.4 to 1.6 times the diameter of the air inlet pipe 1. The air inlet pipe 1 and the air outlet pipe 7 have the same diameter. The vertical pipe and the horizontal pipe have the same diameter. The outer diameter of the horizontal pipe is the same as the inner diameter of the air outlet pipe 7. The specific diameter relationship of each component ensures smooth flow of gas and liquid in the water stopper, avoiding problems such as poor gas flow or obstructed liquid discharge caused by mismatched pipe diameters, and helps to maintain the stable operation of the entire system.

[0031] In a preferred embodiment, the height of the inspection pipe 3 is ≥ 2 times the diameter of the air inlet pipe 1, and the distance between the top opening of the vertical pipe and the inspection port 4 is ≥ the diameter of the air inlet pipe 1. The height of the inspection pipe 3 and the distance between the vertical pipe and the inspection port 4 are set to ensure the maintenance operation space, and at the same time, to reasonably guide the flow of gas and liquid in the water stopper, avoiding turbulence and other situations that are not conducive to gas-liquid separation and drainage.

[0032] In a preferred embodiment, the inlet pipe 1 and outlet pipe 7 are connected to the gas pipeline system by either flange connection or threaded connection. Threaded connection is used when the diameter of the gas pipeline system is <50mm, and flange connection is used when the diameter of the gas pipeline system is ≥50mm. Figs. 1-2 As shown, the intake pipe 1 is connected to the gas pipeline system through the first connecting flange 2, and the exhaust pipe 7 is connected to the gas pipeline system through the second connecting flange 6.

[0033] In a preferred embodiment, the sealing cover is connected to the inspection pipe 3 via a flange. The flange connection makes the connection between the sealing cover and the inspection pipe 3 more secure and tight, ensuring airtightness and preventing gas leakage. It also facilitates disassembly and installation, making maintenance operations convenient.

[0034] In a preferred embodiment, the bottom surface of the sealing cap is provided with a hydrophobic flow guiding structure to guide the water condensed from the bottom surface of the sealing cap due to gas condensation to the inner wall of the inspection pipe 3 and flow downward into the liquid storage chamber. The hydrophobic flow guiding structure can effectively prevent the water generated by gas condensation on the bottom surface of the sealing cap from dripping directly into the area that may affect the gas flow. Instead, it guides the water to the liquid storage chamber to continue to participate in the normal drainage process, further improving the gas-liquid separation and drainage effect of the water stopper.

[0035] In a preferred embodiment, a slag discharge port 12 is also included. The slag discharge port 12 is located at the bottom of the drain pipe 8. The slag discharge port 12 can periodically clean the impurities and residues accumulated at the bottom of the drain pipe 8, prevent them from clogging the drain pipe 8 and the free float type drain valve 9, ensure the unobstructed drainage channel, and ensure the long-term stable operation of the water stopper.

[0036] In a preferred embodiment, the float 10 of the free-floating ball type steam trap 9 is a stainless steel float 10. The stainless steel float 10 has good corrosion resistance, can be used for a long time in a humid liquid storage chamber environment, is not easily damaged, extends the service life of the free-floating ball type steam trap 9, and ensures the reliable realization of its automatic drainage function.

[0037] The following are the instructions for using the gas pipeline water stopper mentioned above:

[0038] Installation preparation

[0039] Select the appropriate connection method based on the nominal diameter of the gas pipeline. If the nominal diameter of the gas pipeline is between 15 and 50 mm, use threaded connections to install the inlet and outlet pipes to the gas pipeline system; if the nominal diameter is above 50 mm, use flange connections. Ensure that the water stopper body is firmly connected to the gas pipeline and that the seal is reliable. Install the water stopper at the lowest point in the gas pipeline system, ensuring that the angle between the water stopper body and the gas pipeline is not less than 60° to guarantee a good sealing effect.

[0040] Put into operation

[0041] Gas entry into the water stopper: Gas enters the water stopper body through the inlet pipe. Due to the gas-liquid separation mechanism, an airflow channel at the top and a drainage channel at the bottom are formed within the water stopper body, allowing gas to enter the inner core tube from the upper part of the inspection pipe and flow along the airflow channel to the outlet pipe. The inner core tube structure in the gas-liquid separation mechanism, such as the annular airflow channel formed by the integrally connected vertical and horizontal pipes, makes the gas flow within the water stopper more uniform and stable.

[0042] Gas-liquid separation and liquid storage: During gas flow, the liquid in the gas is trapped at the bottom of the drain pipe and temporarily stored in the liquid storage chamber formed by the drain pipe. As the liquid in the storage chamber increases, the liquid level gradually rises, and the stainless steel float in the free-floating ball type steam trap also rises accordingly, opening the drain port on the valve seat and allowing the liquid to drain. When the liquid level drops, the float falls until the drain port closes, thus automatically controlling the drainage rate based on the liquid level.

[0043] Gas discharge stop valve: After gas-liquid separation, the gas continues to be transported downstream of the gas pipeline system through the gas outlet pipe, ensuring the purity of the gas transport and meeting the gas quality requirements of industrial production.

[0044] Routine maintenance

[0045] Regular inspection: The internal condition of the stop valve can be inspected through the inspection port at the top of the inspection pipe. Open the sealing cover, which is easily disassembled and installed due to its flange connection. Inspect the inner core tube, drain valve, and other components for damage or blockage; also check whether the drainage structure on the bottom of the sealing cover is working properly, ensuring that water condensed from gas can be properly guided to the storage chamber.

[0046] Cleaning and slag removal: Regularly clean the accumulated impurities and residues at the bottom of the drain pipe through the slag discharge port to prevent them from clogging the drain pipe and the free float ball type steam trap, so as to ensure unobstructed drainage and maintain the long-term stable operation of the water stopper.

[0047] Component Maintenance: While the float of the free-floating ball steam trap is made of stainless steel, offering good corrosion resistance, its wear and tear still needs to be monitored after prolonged use. Replace it promptly if necessary to ensure reliable automatic drainage. Additionally, depending on the operating environment and frequency, perform seal checks and maintenance on connections that may affect sealing (such as flange connections) to prevent gas leaks.

[0048] This utility model uses specific examples to illustrate its principles and implementation methods. The above description of the embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the idea of ​​this utility model. In summary, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A gas pipeline water stopper, installed at a local low point in a gas pipeline system, characterized in that: include: The water stopper body includes an air inlet pipe, an air outlet pipe, and a drain pipe. The air inlet pipe and the air outlet pipe are located on both sides of the water stopper body, and the drain pipe is located at the bottom end of the water stopper body. The air inlet pipe and the air outlet pipe are detachably and sealedly connected to and communicate with a gas pipeline system. A gas-liquid separation mechanism is disposed within the body of the water stopper to form an airflow channel at the top and a water discharge channel at the bottom within the body of the water stopper. The airflow channel is connected to the air outlet pipe, and the water discharge pipe is connected to the water discharge channel. A free-floating ball type steam trap is installed at the bottom of the drain pipe to form a liquid storage chamber inside the drain pipe. When the water in the liquid storage chamber exceeds the design height, it causes the float of the free-floating ball type steam trap to rise, thereby opening the free-floating ball type steam trap and discharging the water exceeding the design height from the drain port of the free-floating ball type steam trap.

2. The gas pipeline water stopper according to claim 1, characterized in that: The water stopper body also includes an inspection pipe and a sealing cap. The inspection pipe is located at the top of the water stopper body and is coaxial with the drain pipe. The air inlet pipe and the air outlet pipe are horizontally coaxial. The top of the inspection pipe is provided with an inspection port. The sealing cap is detachably and sealingly connected to the inspection port.

3. The gas pipeline water stopper according to claim 2, characterized in that: The gas-liquid separation mechanism includes an inner core tube, one end of which is sealed and connected to the outlet pipe, and the other end extends into the inspection pipe to form an airflow channel on the outer periphery of the inner core tube.

4. The gas pipeline water stopper according to claim 3, characterized in that: The inner core tube includes a vertical tube and a horizontal tube that are integrally connected and communicate with each other. The horizontal tube is arranged perpendicularly to the vertical tube. The horizontal tube is sealed and connected to the air outlet tube. The vertical tube extends into the inspection tube and is arranged coaxially with the inspection tube, so that the airflow channel forms an annular airflow channel.

5. The gas pipeline water stopper according to claim 4, characterized in that: The inspection pipe has the same diameter as the drain pipe, the diameter of the inspection pipe is 1.4 to 1.6 times the diameter of the air inlet pipe, the diameter of the air inlet pipe is the same as the diameter of the air outlet pipe, the diameter of the vertical pipe is the same as the diameter of the horizontal pipe, and the outer diameter of the horizontal pipe is the same as the inner diameter of the air outlet pipe.

6. The gas pipeline water stopper according to claim 5, characterized in that: The height of the inspection pipe is ≥ 2 times the diameter of the air intake pipe, and the distance between the top opening of the vertical pipe and the inspection port is ≥ the diameter of the air intake pipe.

7. The gas pipeline water stopper according to claim 6, characterized in that: The inlet pipe and the outlet pipe are connected to the gas pipeline system by flange connection or threaded connection.

8. The gas pipeline water stopper according to claim 7, characterized in that: The sealing cap is connected to the inspection pipe via a flange.

9. The gas pipeline water stopper according to claim 8, characterized in that: The bottom surface of the sealing cap is provided with a hydrophobic flow guiding structure to guide the water condensed from the bottom surface of the sealing cap due to gas condensation to the inner wall of the inspection tube and flow downward into the liquid storage chamber.

10. The gas pipeline water stopper according to claim 9, characterized in that: It also includes a slag discharge port, which is located at the bottom of the drain pipe.

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