Coal gas delivery system cleaning device

Abstract

The utility model provides a coal gas conveying system cleaning device belongs to technical field, including the exchange plug in the coal gas conveying system still includes the compound cleaning unit, and the compound cleaning unit includes: with the carbon removal pipeline that communicates in exchange plug inside, and the carbon removal pipeline is used for to exchange plug inside delivery air pressure wind, to clean the residual coal gas in the coal gas conveying system, with the steam pipeline that communicates in exchange plug inside, and the steam pipeline is used for to exchange plug inside delivery steam, to clean the adherent in the coal gas conveying system, the utility model discloses can be assisted with steam pipeline to the structure in the coal gas conveying system is cleaned, and steam can quickly penetrate to the narrow gap and the inside of complex structure, and the stubborn adherent impurity is softened and strongly stripped, realizes the efficient removal to the impurity, prevents the residual impurity accumulation, and the cleaning effect is far superior to manual cleaning, guarantees the long -term stable operation of coal gas conveying system.

Description

Technical Field

[0001] This utility model relates to the technical field, specifically to a cleaning device for a gas transmission system. Background Technology

[0002] In the field of gas production and transportation, the transportation of gas typically consists of the following core components: add / subtract and exchange valves, upper and lower branch pipes, horizontal pipes, nozzles, orifice plate boxes and their internal orifice plates. These key components are crucial for the stable operation of the system and the effective utilization of gas.

[0003] In the existing gas transmission system, the structure and positional relationship of each component are as follows: the upper end of the lower branch pipe is connected to the increase / decrease valve, and the lower end is connected to the gas pipeline for transmitting gas; the increase / decrease valve is connected to the upper exchange valve through an orifice plate box, and an orifice plate for controlling the gas flow rate is placed in the middle of the orifice plate box; the increase / decrease valve switch is used to control the opening and closing of the increase / decrease valve to regulate the gas flow rate; the exchange valve is connected to the horizontal pipe through the upper branch pipe, and a nozzle is installed on the horizontal pipe; the exchange valve switch controls the on / off and reversal of the exchange valve.

[0004] However, due to the long-term influence of the complex composition of coal gas, impurities such as tar, naphthalene, carbon deposits, and waste oil easily adhere to the internal channels and inner walls of the branch pipes of the stopcock, seriously hindering gas transportation and increasing safety risks. Traditional manual cleaning methods require the use of tools such as shovels, brushes, and hooks to manually remove impurities such as tar and carbon deposits from the stopcock, branch pipes, horizontal pipes, and nozzles. Moreover, the gas transportation system has a complex structure (such as the internal channels of the stopcock and small parts of the nozzles), making it difficult for manual tools to reach them completely, which easily leads to incomplete cleaning and subsequent re-accumulation and blockage of residual impurities. Utility Model Content

[0005] In view of this, the present invention provides a gas conveying system cleaning device, which can use steam pipes to clean the structure of the gas conveying system. Steam can quickly penetrate into narrow gaps and complex structures, soften and forcefully peel off stubborn impurities, achieve efficient removal of impurities, prevent the accumulation of residual impurities, and the cleaning effect is far superior to manual cleaning, ensuring the long-term stable operation of the gas conveying system.

[0006] To solve the above-mentioned technical problems, this utility model provides a cleaning device for a gas conveying system, including an exchange valve in the gas conveying system, wherein one side of the exchange valve is provided with a connecting port, characterized in that: it further includes a composite cleaning unit, the composite cleaning unit comprising:

[0007] A decarbonization pipe connected to the exchange cock is used to supply compressed air into the exchange cock to remove residual gas. To avoid affecting the furnace temperature, the purging process is performed in the descending section. The exchange cock switch is rotated to connect the decarbonization pipe from the exchange cock to the upper branch pipe and the horizontal pipe. Subsequently, an external air compressor supplies compressed air into the decarbonization pipe, which then enters the exchange cock and the upper branch pipe, and subsequently into the horizontal pipe, thereby blowing out the residual gas in the exchange cock, the upper branch pipe, and the horizontal pipe. It also includes a steam pipe connected to the exchange cock. The steam pipe is used to deliver steam into the exchange cock to clean the deposits. Steam is delivered into the exchange cock through the steam pipe. First, the switch of the add / remove cock is closed, and then the switch of the exchange cock is opened. Steam is delivered into the exchange cock through the steam pipe, so that the steam enters the upper branch pipe and the horizontal pipe for cleaning. The steam softens and powerfully peels off the stubborn impurities and deposits, achieving efficient removal of impurities and preventing the accumulation of residual impurities. The cleaning effect is far superior to manual cleaning, ensuring the long-term stable operation of the gas transmission system.

[0008] The carbon removal pipeline includes a fixed pipe and a detachable hose; one end of the fixed pipe is connected to the communication port of the exchange cock, and the other end is provided with an external thread section; a matching nut is fixed to the end of the hose, and the hose is installed at the end of the fixed pipe through thread engagement, thereby completing the disassembly and assembly of the hose and the fixed pipe. An air compressor is connected to the end of the hose, and the air compressor enters the fixed pipe through the hose, and finally passes through the fixed pipe through the communication port of the exchange cock and enters the interior of the exchange cock to clean the exchange cock and the upper branch pipe.

[0009] The steam pipeline includes a steam purging pipe and a first connecting part disposed at the end of the steam purging pipe. The steam purging pipe can be detachably installed on the external threaded section of the fixed pipe through the first connecting part to achieve fluid communication between the steam purging pipe and the inner cavity of the exchange cock. When steam purging is required after compressed air purging, the hose is removed from the fixed pipe and the steam purging pipe is installed on the fixed pipe through the first connecting part. By connecting the steam purging pipe to a steam generator, steam enters the fixed pipe from the steam purging pipe and then enters the interior of the exchange cock through the fixed pipe, thereby completing the purging.

[0010] The first connection part is a connecting nut that is fixedly connected to the end of the steam purging pipe. By screwing the connecting nut at the end of the steam purging pipe onto the external thread section of the fixed pipe, the steam purging pipe and the fixed pipe are fixedly installed. After the steam purging is completed, the steam purging pipe is removed, and finally the hose is reconnected to the fixed pipe for installation.

[0011] The fixed tube end is provided with an external thread section, and the inner ring wall of the connecting port of the exchange cock is provided with a matching internal thread section. By screwing the external thread section of the fixed tube into the internal thread section of the connecting port, the fixed tube and the connecting port can be fixedly installed.

[0012] The steam pipeline includes a steam purging pipe, which is fixedly connected to the connecting port cap of the exchange cock via a second connecting part. By opening a round hole in the connecting port cap of the exchange cock and then welding the steam purging pipe to the cap, fluid communication between the steam purging pipe and the inner cavity of the exchange cock is achieved through the through hole of the cap. The steam purging pipe is directly connected to the connecting port of the exchange cock. When steam purging is required after cleaning the residual gas in the horizontal pipe, the valve of the carbon removal pipeline is directly closed, and steam can be directly introduced from the steam purging pipe into the cock passage of the exchange cock, thereby improving the convenience of purging to a certain extent.

[0013] The steam purge pipe is equipped with a switch valve. When steam needs to be connected, the switch valve on the steam purge pipe is opened to allow steam to enter the exchange cock.

[0014] The steam purge pipe is equipped with a pressure control valve. When the steam is turned on, the pressure of the steam flowing in the steam purge pipe can be controlled by the pressure control valve, so that the steam can clean the attached substances more thoroughly.

[0015] The fixed tube and the exchange valve are detachably connected. The detachable connection of the fixed tube makes it easy to disassemble and clean the fixed tube, improving the convenience of later equipment maintenance.

[0016] In summary, compared with the prior art, this application includes at least one of the following beneficial technical effects:

[0017] 1. When this utility model is used, steam can quickly penetrate into the narrow gaps of the exchange valve and nozzle, softening and forcefully peeling off stubborn impurities and deposits, achieving efficient removal of impurities, preventing the accumulation of residual impurities, and the cleaning effect is far superior to manual cleaning, ensuring the long-term stable operation of the gas transmission system.

[0018] 2. When using this utility model, the modular connection structure (threaded engagement / welded base) allows key components to be quickly disassembled and replaced, greatly reducing maintenance difficulty and time costs.

[0019] 3. When using this utility model, the hose detachable solution allows for quick switching of the steam channel by reusing the carbon removal pipe interface, saving on modification costs. The cap direct connection solution eliminates disassembly steps with its independent bypass design, suitable for high-frequency cleaning scenarios.

[0020] 4. When using this utility model, the step-by-step operation process of removing residual coal gas with compressed air and cleaning adhering substances with steam avoids the risk of coal gas explosion caused by high temperature steam from the source, thus ensuring operational safety. Attached Figure Description

[0021] Figure 1This is a schematic diagram of the steam purging pipe before installation in Embodiment 1 of this utility model;

[0022] Figure 2 This is a schematic diagram of the structure of the steam purging pipe after installation in Embodiment 2 of this utility model.

[0023] Explanation of reference numerals in the attached figures:

[0024] 100. Exchange cock; 101. Connecting port; 102. Pipe cap; 200. Add / remove cock; 300. Fixed pipe; 301. Hose; 302. Matching nut; 400. Steam purge pipe; 401. Connecting nut; 402. Switch valve; 403. Pressure control valve; 500. Orifice plate box; 600. Lower branch pipe; 700. Upper branch pipe; 800. Horizontal pipe; 801. Nozzle. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the following will be described in conjunction with the accompanying drawings of the embodiments of this utility model. Figure 1-2 The technical solutions of the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model are within the protection scope of this utility model.

[0026] Example 1:

[0027] Gas transmission system cleaning devices, such as Figure 1 The system includes an exchange valve 100 in a gas transmission system, with a communication port 101 on one side. The system is characterized by further including a composite cleaning unit, which comprises:

[0028] A decarbonization pipe connected to the exchange cock 100 is used to supply compressed air into the exchange cock 100 to clean residual gas in the gas transmission system. To avoid affecting the furnace temperature, the purging operation is performed in the descending section. The exchange cock 100 is turned to connect the decarbonization pipe from the exchange cock 100 to the upper branch pipe and the horizontal pipe 800. Then, an external air compressor is connected to the decarbonization pipe, and compressed air is supplied into the decarbonization pipe through the external air compressor. The compressed air enters the exchange cock 100 and the upper branch pipe 700, and then enters the interior of the horizontal pipe 800, thereby blowing out the residual gas in the exchange cock 100, the upper branch pipe 700, and the horizontal pipe 800.

[0029] It also includes a steam pipe connected to the exchange valve 100. The steam pipe is used to deliver steam into the exchange valve 100 to clean the deposits in the gas transmission system. To deliver steam into the exchange valve 100, first close the switch of the add / subtract the valve 200, then open the switch of the exchange valve 100. The steam is then delivered into the exchange valve 100 through the steam pipe, allowing the steam to enter the upper branch pipe 700 and the horizontal pipe 800 for cleaning. The steam can quickly penetrate into the narrow gaps of the exchange valve 100 and the nozzle 801, softening and forcefully peeling off stubborn impurities and deposits, achieving efficient removal of impurities, preventing the accumulation of residual impurities, and the cleaning effect is far superior to manual cleaning, ensuring the long-term stable operation of the gas transmission system.

[0030] Specifically, the carbon removal pipeline includes a fixed pipe 300 and a detachable hose 301; one end of the fixed pipe 300 is connected to the communication port 101 of the exchange cock 100, and the other end is provided with an external thread section; a matching nut 302 is fixed to the end of the hose 301 and installed at the end of the fixed pipe 300 through threaded engagement; an air compressor is connected to the end of the hose 301, and the air compressor enters the fixed pipe 300 through the hose 301, and finally passes through the fixed pipe 300 through the communication port 101 of the exchange cock 100 and enters the interior of the exchange cock 100 to clean the exchange cock 100 and the upper branch pipe 700.

[0031] Specifically, the steam pipeline includes a steam purge pipe 400 and a first connecting part disposed at the end of the steam purge pipe 400. The steam purge pipe 400 can be detachably installed on the external threaded section of the fixed pipe 300 through the first connecting part to achieve fluid communication between the steam purge pipe 400 and the inner cavity of the exchange valve 100. When steam cleaning is required after air compressed air cleaning, the hose 301 is removed from the fixed pipe 300, and the steam purge pipe 400 is installed on the fixed pipe 300 through the first connecting part. By connecting the steam purge pipe 400 to a steam generator, steam enters the fixed pipe 300 from the steam purge pipe 400 and then enters the interior of the exchange valve 100 through the fixed pipe 300, thereby completing the cleaning.

[0032] Specifically, the first connection part is a connecting nut 401 fixedly connected to the end of the steam purging pipe 400; by screwing the connecting nut 401 at the end of the steam purging pipe 400 onto the external thread section of the fixed pipe 300, the fixed installation between the steam purging pipe 400 and the fixed pipe 300 is achieved. After the steam purging is completed, the steam purging pipe 400 is removed, and finally the hose 301 is reconnected to the fixed pipe 300 for installation.

[0033] Furthermore, when cleaning the addition / reduction valve 200 and the lower branch pipe 600, open the addition / reduction valve 200, adjust the switch of the exchange valve 100 so that the valve channel of the exchange valve 100 is connected to the addition / reduction valve 200, then remove the orifice plate from the orifice plate box 500, and then turn on the steam to enter the exchange valve 100 through the steam purge pipe 400. At this time, the steam passes through the orifice plate box 500 and enters the channel of the addition / reduction valve 200, and finally passes through the lower branch pipe 600 and enters the main gas transmission pipeline. After the root of the lower branch pipe 600 and the wall of the main pipeline are hot, turn off the steam cleaning after 5 minutes to complete the cleaning work.

[0034] Furthermore, a switch valve 402 is provided on the steam purge pipe 400. When steam needs to be connected, the switch valve 402 on the steam purge pipe 400 is opened, so that steam can enter the exchange cock 100.

[0035] Furthermore, a pressure control valve 403 is provided on the steam purge pipe 400. When the steam is turned on, the pressure of the steam flowing in the steam purge pipe 400 can be controlled by the pressure control valve 403, so that the steam can clean the attached substances more thoroughly.

[0036] Specifically, the fixed tube 300 is detachably connected to the exchange valve 100. The detachable connection of the fixed tube 300 facilitates disassembly and cleaning, improving the convenience of subsequent equipment maintenance.

[0037] Furthermore, the end of the fixed tube 300 is provided with an external thread section, and the inner ring wall of the communication port 101 of the exchange valve 100 is provided with a matching internal thread section. By screwing the external thread section of the fixed tube 300 into the internal thread section of the communication port 101, the fixed installation of the fixed tube 300 and the communication port 101 can be achieved.

[0038] Example 2:

[0039] Preferred, according to Figure 2 As shown, the steam pipeline includes a steam purge pipe 400, which is fixedly connected to the connector 101 of the exchange valve 100 via a second connecting part at the pipe cap 102.

[0040] By opening a round hole at the pipe cap 102 of the connecting port 101 of the exchange cock 100, and then welding the steam purge pipe 400 to the pipe cap 102, the steam purge pipe 400 can achieve fluid communication with the inner cavity of the exchange cock 100 through the through hole of the pipe cap 102.

[0041] The difference from Embodiment 1 is that the steam purge pipe 400 is directly connected to the communication port 101 of the exchange cock 100. When steam purging is required after the residual gas in the horizontal pipe 800 has been purged, it is not necessary to disassemble the hose 301 and then install the steam purge pipe 400. The valve of the carbon removal pipe can be closed directly, and then the steam purge pipe 400 can be connected to a steam generator through an external rubber hose. Steam can then be directly introduced from the steam purge pipe 400 into the cock passage of the exchange cock 100, thereby improving the convenience of purging to a certain extent.

[0042] Preferably, the connecting port 101 of the addition / subtraction valve 200 is also opened at the cap 102, and a steam purge pipe 400 is welded to its cap 102, and the exchange valve 100 and the addition / subtraction valve 200 are respectively connected through the two steam purge pipes 400.

[0043] When it is necessary to clean the exchange cock 100 and the upper branch pipe 700, open the switch of the exchange cock 100, close the switch of the addition / reduction cock 200, and then open the switch valve 402 of the steam purge pipe 400 at the exchange cock 100 so that steam enters the exchange cock 100 from the steam purge pipe 400 for cleaning.

[0044] When it is necessary to clean the addition / reduction valve 200 and the lower branch pipe 600, open the switch of the addition / reduction valve 200, close the switch of the exchange valve 100, and open the switch valve 402 of the steam purge pipe 400 at the addition / reduction valve 200 so that steam enters the addition / reduction valve 200 from the steam purge pipe 400 for cleaning.

[0045] How to use this utility model:

[0046] First, it should be clarified that this utility model is mainly used for cleaning gas transmission pipeline systems. Here, it should be clarified that the exchange cock 100, upper branch pipe 700, horizontal pipe 800, nozzle 801, orifice plate box 500, orifice plate, addition / reduction cock 200, and lower branch pipe 600 are all equipment in existing gas transmission systems. Since they are not the innovation point or main technical feature of this utility model, the model is not limited here, nor is their structure described in detail. Only the usage method and installation position of the steam pipe and decarbonization pipe are described in detail. When it is necessary to clean the residual gas in the horizontal pipe 800, the switch of the exchange cock 100 is opened, the air compressor is started, and the air compressor enters the cock channel of the exchange cock 100 through the hose 301 and the fixed pipe 300. The air compressor enters the upper branch pipe 700 through the cock channel and then enters the horizontal pipe 800. The air compressor sprays the residual gas inside the horizontal pipe 800 out from the nozzle 801 on the surface of the horizontal pipe 800.

[0047] After the residual gas is cleaned up, steam cleaning is required to remove the internal deposits and debris. Before cleaning, the orifice plate in the orifice plate box 500 needs to be removed and the valve of the carbon removal pipeline needs to be closed.

[0048] When cleaning the addition / reduction valve 200 and the lower branch pipe 600, open the addition / reduction valve 200, adjust the switch of the exchange valve 100 to connect the valve passage of the exchange valve 100 to the addition / reduction valve 200, then adjust the pressure control valve 403 to control the steam pressure, and then use the steam generator to make the steam enter the valve passage of the exchange valve 100 and the addition / reduction valve 200 through the steam purge pipe 400, so that the steam enters the main pipeline through the lower branch pipe 600. After the root of the lower branch pipe 600 and the wall of the main pipeline are hot, turn off the steam after 5 minutes to complete the cleaning work.

[0049] When cleaning the inside of the exchange valve 100 and the upper branch pipe 700, horizontal pipe 800, and nozzle 801, close the switch of the increase / decrease valve 200, then turn on the steam generator and open the switch valve 402 of the steam purging pipe 400 to allow steam to enter the inside of the exchange valve 100 through the steam purging pipe 400. At the same time, slowly rotate the valve switch of the exchange valve 100 to allow the steam to clean the inside of the exchange valve 100. Rotate the switch of the exchange valve 100 to connect the exchange valve 100 and the upper branch pipe 700, allowing steam to enter the upper branch pipe 700 for purging. At the same time, steam enters the horizontal pipe 800 from the upper branch pipe 700 to clean the debris and attachments on the inner walls of the horizontal pipe 800 and the upper branch pipe 700. When both ends of the horizontal pipe 800 become hot, continue purging for 10 minutes. Finally, close the switch valve 402 of the steam purging pipe 400 to complete the cleaning work.

[0050] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A gas transmission system cleaning device, comprising an exchange valve (100) in a gas transmission system, characterized in that: It also includes a composite cleaning unit, which comprises: A decarbonization pipe is connected to the exchange valve (100) for supplying compressed air into the exchange valve (100) to clean the residual gas in the gas transmission system. A steam pipe is connected to the exchange valve (100) for supplying steam to the exchange valve (100) to clean deposits in the gas delivery system.

2. The gas transmission system cleaning device as described in claim 1, characterized in that: The carbon removal pipeline includes a fixed pipe (300) and a detachable flexible hose (301); One end of the fixed tube (300) is connected to the communication port (101) of the exchange valve (100), and the other end is provided with an external thread section; The end of the hose (301) is fixed with a matching nut (302), which enables detachable installation through thread engagement.

3. The gas transmission system cleaning device as described in claim 2, characterized in that: The steam pipeline includes a steam purge pipe (400) and a first connecting part disposed at the end of the steam purge pipe (400); The steam purge pipe (400) can be detachably installed on the external threaded section of the fixed pipe (300) via the first connecting part to achieve fluid communication between the steam purge pipe (400) and the inner cavity of the exchange valve (100).

4. The gas transmission system cleaning device as described in claim 3, characterized in that: The first connecting part is a connecting nut (401) fixedly connected to the end of the steam purge pipe (400); The steam purging pipe (400) and the fixed pipe (300) are fixedly installed by screwing the connecting nut (401) onto the external thread section of the fixed pipe (300).

5. The gas transmission system cleaning device as described in claim 4, characterized in that: The steam pipeline includes a steam purge pipe (400), which is fixedly connected to the cap (102) of the connecting port (101) via a second connecting part; The second connection part includes a through hole provided on the cap (102), the steam purge pipe (400) is fixedly connected to the cap (102), and fluid communication between the steam purge pipe (400) and the inner cavity of the exchange valve (100) is achieved through the through hole of the cap (102).

6. The gas transmission system cleaning device as described in any one of claims 3-5, characterized in that: A switching valve (402) is provided on the steam purge pipe (400), and the switching valve (402) is used to control the airflow inside the steam purge pipe (400).

7. The gas transmission system cleaning device according to any one of claims 3-6, characterized in that: The steam purge pipe (400) is equipped with a pressure control valve (403), which is used to control the steam pressure flowing in the steam purge pipe (400).

8. The gas transmission system cleaning device as described in claim 2, characterized in that: The fixed tube (300) is detachably connected to the exchange valve (100).

9. The gas transmission system cleaning device as described in claim 8, characterized in that: The fixed tube (300) is provided with an external thread section at its end, and the inner ring wall of the communication port (101) of the exchange valve (100) is provided with a matching internal thread section. The fixed tube (300) and the communication port (101) are fixedly installed by screwing the external thread section of the fixed tube (300) and the internal thread section of the communication port (101).

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