Valve for natural gas valve chamber

Abstract

The valve for the natural gas valve chamber comprises a valve body and a base, the valve body is fixedly connected to the top end of the base, and a first motor is fixed to the top end of the valve body. A scraping ring is impacted by water flow in the drainage process to move rightwards, when the interior of a pipeline needs to be cleaned, an electric push rod and a second motor are started, the electric push rod drives a second gear to ascend to be engaged with a first gear, and the second motor drives the second gear to rotate; under the meshing effect, the two first gears drive the first rotating shaft to rotate to achieve recycling and winding of the rigid pull rope, meanwhile, scraping rings at the other ends of the first gears move synchronously and scrape impurities on the inner wall of the pipeline, and the purposes of sealing the inlet of the rigid pull rope and protecting the rigid pull rope can be achieved through a corrugated hose and a sealing head; therefore, manual cleaning is not needed, operation time and labor force are reduced, use of internal elements is reduced, and use and maintenance cost is reduced.

Description

Technical Field

[0001] This invention relates to the field of valve technology, and in particular to a valve for a natural gas valve chamber. Background Technology

[0002] Natural gas long-distance pipelines are characterized by long distances and high pressures. To ensure the safe transportation and emergency response of natural gas, several valve chambers are installed along the pipeline to control the transportation of natural gas. During use, valves are installed in the natural gas valve chambers to drain water accumulated during heavy rain or rainy weather.

[0003] Chinese Patent Publication No. CN 110925481 A discloses an anti-clogging composite sewage drain valve, including a valve body. This invention facilitates the cleaning of filtered impurities, is easy to operate, reduces cleaning difficulty, improves cleaning efficiency, and avoids the phenomenon of normally open valves loosening and closing or normally closed valves loosening and opening during use, thus improving the stability of the valve during use. The existing technical solutions have the following shortcomings: When cleaning the filter assembly, the cover needs to be unscrewed and the filter screen assembly removed. While this meets basic cleaning needs, it requires manual, periodic operation, which is inconvenient and has room for optimization.

[0004] Chinese Patent Publication No. CN 113790273 A discloses a drain valve for easy cleaning in water conservancy projects. The drain valve includes: a housing and a filter screen fixedly installed within the housing. The housing has a hollow structure and two interconnected drain pipes are mounted on it. A vertically arranged rotating shaft is rotatably connected to the housing, and a first bevel gear is fixedly connected to the rotating shaft. A rotating rod has a groove at its upper end, with multiple protrusions arranged in a ring within the groove. The lower end of the rotating rod is rotatably connected to the lower inner wall of the housing. A cleaning mechanism includes a mounting plate fixedly installed within the housing. This invention effectively cleans impurities from the filter screen, making cleaning easier and faster, reducing the time spent on cleaning, and achieving a more thorough cleaning. The existing technical solution has the following shortcomings: manual cleaning is still required periodically when cleaning the filter assembly, and small particles can easily get trapped in the gaps of the internal gear assembly, causing surface wear and inconvenience, thus requiring optimization. Summary of the Invention

[0005] The purpose of this invention is to provide a valve for a natural gas valve chamber to solve the problem of poor valve cleaning effect mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a valve for a natural gas valve chamber, comprising a valve body and a base, wherein the valve body is fixedly connected to the top of the base;

[0007] A first motor is fixed to the top of the valve body, and pipes are fixed to both sides of the valve body. An auxiliary cleaning mechanism is provided at one end of the valve body, and the auxiliary cleaning mechanism includes an operating box. The operating box is fixedly connected to one end of the valve body, and an electric push rod is connected to the bottom of the operating box via a bracket. A second motor is fixed to the output end of the electric push rod, and the second motor extends into the interior of the operating box. A second gear is connected to the outer side of the output shaft of the second motor. A first rotating shaft is rotatably connected to both sides inside the operating box, and a first gear is fixed to the outer side of each first rotating shaft. The first gear meshes with the second gear. A rigid pull rope is connected to the bottom of the outer side of the first rotating shaft. One end of the rigid pull rope extends into the inside of the pipe and is connected to a connecting block. A scraper ring is fixed to the outer side of the connecting block. A push bar is fixed to the bottom of one side of the scraper ring. A sealing head is fixed to one side of the inside of the pipe. A corrugated hose is connected to the outer side of the sealing head. The other end of the corrugated hose is connected to the connecting block. The rigid pull rope passes through the inside of the corrugated hose. A self-opening mechanism is provided at the bottom of the inside of the pipe. A self-slag discharge mechanism is provided at the bottom of the pipe.

[0008] Preferably, the self-discharging slag mechanism includes a slag discharge box, and the slag discharge box is fixed to the bottom end of the pipe. A rotating frame is fixed to the outside of the slag discharge box, and a closed seat is movably connected to the inside of the rotating frame. A gravity block is fixed to the bottom end inside the closed seat.

[0009] Preferably, the slag discharge box has a slag discharge trough inside, and the bottom of the slag discharge trough is designed to be inclined.

[0010] Preferably, the cross-section of the sealing seat is semi-circular, and the slag discharge trough is connected to the interior of the pipe.

[0011] Preferably, the self-opening mechanism includes a receiving groove, and a stop block is movably connected inside the receiving groove. A push block is fixed to the top of the stop block. A movable groove is provided inside the pipe on one side of the receiving groove, and a connecting rod is connected inside the movable groove. The connecting rod is connected to the stop block, and a spring is sleeved on the outside of the connecting rod. A discharge port is provided inside the pipe below the stop block.

[0012] Preferably, the height of the push block is slightly higher than the bottom height of the pipe, and the push block is in contact with the push bar.

[0013] Preferably, a natural gas valve chamber body is provided on one side of the valve body, and an infrared sensor and a water level sensor are respectively fixed on both sides inside the natural gas valve chamber body. A control box is fixed on one side of the natural gas valve chamber body, and an insulation cover is connected to the outside of the valve body. A microcontroller and a remote control module are fixed inside the control box, and an alarm is fixed on the top of the control box.

[0014] Preferably, a temperature sensor is fixed inside the heat insulation cover, solar panels are connected to both sides of the top of the heat insulation cover, a resistance heating wire is installed inside the heat insulation cover, and a storage box is fixed to one side of the top of the base.

[0015] Preferably, the internal groove of the scraper ring is trapezoidal, and the connecting block and the scraper ring are integrally formed.

[0016] Preferably, the internal groove of the scraper ring is trapezoidal, and the connecting block and the scraper ring are integrally formed.

[0017] Compared with the prior art, the beneficial effects of the present invention are: the valve for natural gas valve chamber is equipped with an auxiliary cleaning mechanism, which eliminates the need for manual cleaning, reducing operation time and labor. At the same time, the number of internal components is reduced, lowering the cost of use and maintenance. By setting a self-opening mechanism and a self-discharging mechanism, integrated cleaning and slag discharge operation can be achieved.

[0018] An auxiliary cleaning mechanism is installed on the valve body. During use, the scraper ring moves to the right due to the impact of water flow during drainage. When it is necessary to clean the inside of the pipe, the electric push rod and the second motor are activated. The electric push rod drives the second gear to rise and mesh with the first gear. The second motor drives the second gear to rotate. Under the meshing action, the two sets of first gears drive the first shaft to rotate, thereby realizing the recovery and winding of the rigid pull rope. At the same time, the scraper ring at the other end moves synchronously and scrapes away impurities on the inner wall of the pipe. Through the corrugated hose and sealing head, the inlet of the rigid pull rope can be sealed and protected. Thus, manual cleaning is not required, reducing operation time and labor. At the same time, the number of internal components is reduced, reducing the cost of use and maintenance.

[0019] Based on the above-mentioned auxiliary cleaning mechanism, a self-opening mechanism is set up. During the use of the scraper ring, when it is pulled back, its bottom push bar first contacts the push block and drives the push block and the stop block to move synchronously during the pull-back process. That is, it drives the stop block to move into the receiving groove. At the same time, the other side of the stop block squeezes the spring through the connecting rod, and the bottom discharge port opens, thus achieving the purpose of synchronous discharge during the scraper ring pull-back process. When the scraper ring is no longer under the pulling force, the stop block is automatically reset by the spring to ensure its sealing when conveying water.

[0020] Based on the aforementioned self-opening mechanism, a self-discharging mechanism is added. During use, when the discharge port is opened, it is interconnected with the slag discharge trough, meaning that impurities fall into the slag discharge trough simultaneously and converge to one side due to the inclined design at the bottom. The sealing seat tilts and rotates under the gravity on one side, thus opening the bottom of the slag discharge box to achieve automatic slag discharge. At the same time, the sealing seat is subjected to the action of the gravity block, and after the slag discharge is completed, it self-balances to a horizontal state, thus achieving the self-sealing purpose after slag discharge. In summary, no operator is required to perform the integrated cleaning and slag discharge operation.

[0021] An infrared sensor and a water level sensor are installed inside the natural gas valve chamber. Firstly, when the water level reaches a threshold, the infrared sensor transmits information to the microcontroller, which then controls the first motor to start and open the valve. Secondly, when the water level reaches the threshold, the water level sensor comes into contact with the water and transmits information to the microcontroller, which then controls the first motor to start and open the valve. Using two sets of sensors ensures that the system can continue to operate normally even if one sensor fails. At the same time, a temperature sensor monitors the real-time temperature. When the temperature is lower than a preset value, the information is transmitted to the microcontroller, which then activates the resistance heating wire to prevent the valve from freezing. This ensures that the drainage system can promptly drain accumulated water and that the pipeline can operate normally, thus improving the overall functionality. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a front view cross-sectional structural diagram of the valve body of the present invention;

[0024] Figure 2 This is a front view structural diagram of the valve body of the present invention;

[0025] Figure 3 This is a three-dimensional structural diagram of the valve body of the present invention;

[0026] Figure 4 This is a schematic diagram of the three-dimensional structure of the scraper ring of the present invention;

[0027] Figure 5 This is a schematic diagram of the internal three-dimensional structure of the slag discharge box of the present invention;

[0028] Figure 6 This is a three-dimensional structural diagram of the slag discharge box of the present invention in use.

[0029] Figure 7 This is a three-dimensional structural diagram of the self-opening mechanism of the present invention in use.

[0030] Figure 8 This is a schematic diagram of the internal three-dimensional structure of the control box of the present invention;

[0031] Figure 9 This is a front view structural diagram of the present invention;

[0032] Figure 10 This is a schematic diagram of the circuit relationship of the present invention.

[0033] The following are the annotations in the diagram: 1. First motor; 2. Valve body; 3. Solar panel; 4. Temperature sensor; 5. Insulation cover; 6. Auxiliary cleaning mechanism; 601. Corrugated hose; 602. Sealing head; 603. Push bar; 604. Scraper ring; 605. Connecting block; 606. Control box; 607. Electric push rod; 608. Rigid pull rope; 609. First gear; 610. First rotating shaft; 611. Second motor; 612. Second gear; 7. Self-opening mechanism; 701. Receiving groove; 702. 703. Stop block; 704. Discharge port; 705. Push block; 706. Connecting rod; 707. Spring; 708. Movable groove; 8. Self-discharging slag mechanism; 809. Slag discharge box; 8000. Sealing seat; 801. Gravity block; 802. Rotating frame; 803. Slag discharge trough; 9. Base; 10. Resistance heating wire; 11. Storage box; 12. Natural gas valve chamber body; 13. Alarm; 14. Control box; 15. Microcontroller; 16. Remote control module; 17. Infrared sensor; 18. Water level sensor; 19. Pipeline. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] Please see Figures 1-10 The present invention provides the following technical solution:

[0036] Example 1

[0037] To address the problem of inconvenient adjustment of the fixing orientation of pipe fasteners in existing technologies, the following solution is disclosed, as follows: Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 7 and Figure 8As shown, the valve for a natural gas valve chamber provided in this application includes a valve body 2 and a base 9. The valve body 2 is fixedly connected to the top of the base 9, and a first motor 1 is fixedly fixed to the top of the valve body 2. Pipes 19 are fixed to both sides of the valve body 2. An auxiliary cleaning mechanism 6 is provided at one end of the valve body 2, and the auxiliary cleaning mechanism 6 includes an operation box 606. The operation box 606 is fixedly connected to one end of the valve body 2, and an electric push rod 607 is connected to the bottom of the operation box 606 through a bracket. A second motor is fixed to the output end of the electric push rod 607. 611, the second motor 611 extends into the interior of the control box 606. A second gear 612 is connected to the outer side of the output shaft of the second motor 611. First shafts 610 are rotatably connected to both sides inside the control box 606, and first gears 609 are fixed to the outer sides of each first shaft 610. The first gears 609 mesh with the second gear 612. Rigid pull ropes 608 are connected to the bottom ends of the outer sides of each first shaft 610, and one end of each rigid pull rope 608 extends into the interior of the pipe 19 and is connected to a connecting block 605. The outer sides of the connecting blocks 605 are fixed... A scraper ring 604 is fixed, and the internal groove of the scraper ring 604 is trapezoidal. The connecting block 605 and the scraper ring 604 are integrally formed. A pusher 603 is fixed to the bottom end of one side of the scraper ring 604. A sealing head 602 is fixed to one side of the inside of the pipe 19, and a corrugated hose 601 is connected to the outside of the sealing head 602. The other end of the corrugated hose 601 is connected to the connecting block 605. A rigid pull rope 608 passes through the inside of the corrugated hose 601. A self-opening mechanism 7 is provided at the bottom end of the inside of the pipe 19. The self-opening mechanism 7 includes... The receiving groove 701 is movably connected to the inside of the receiving groove 701, and a push block 704 is fixed to the top of the stop block 702. The pipe 19 on one side of the receiving groove 701 is provided with a movable groove 707, and a connecting rod 705 is connected inside the movable groove 707. The connecting rod 705 is connected to the stop block 702, and a spring 706 is sleeved on the outside of the connecting rod 705. The pipe 19 below the stop block 702 is provided with a discharge port 703. The height of the push block 704 is slightly higher than the bottom height of the pipe 19, and the push block 704 is in contact with the push bar 603.

[0038] In this embodiment, a scraper ring 604 is provided during use. During drainage, it moves to the right due to the impact of water flow. When it is necessary to clean the inside of the pipe 19, the electric push rod 607 and the second motor 611 are activated. The electric push rod 607 drives the second gear 612 to rise and mesh with the first gear 609. The second motor 611 drives the second gear 612 to rotate. Under the meshing action, the two sets of first gears 609 drive the first rotating shaft 610 to rotate, thereby realizing the recovery and winding of the rigid pull rope 608. At the same time, the scraper ring 604 at its other end moves synchronously and scrapes away impurities from the inner wall of the pipe 19, which are then discharged through the corrugated hose 601 and the sealing head 602. It can achieve the purpose of sealing the inlet of the rigid pull rope 608 and protecting itself. During the pullback process of the scraper ring 604, its bottom push bar 603 first contacts the push block 704, and drives the push block 704 and the stop block 702 to move synchronously during the pullback process. That is, it drives the stop block 702 to move into the receiving groove 701. At the same time, the other side of the stop block 702 squeezes the spring 706 through the connecting rod 705, and the bottom discharge port 703 opens. That is, the purpose of synchronous discharge is achieved during the pullback process of the scraper ring 604. When the scraper ring 604 is no longer under the pulling force, the stop block 702 is automatically reset by the spring 706 to ensure its sealing when conveying water.

[0039] Example 2

[0040] This embodiment differs from Embodiment 1 in that it achieves automatic slag removal by setting a self-discharging slag mechanism 8, as detailed below. Figure 1 , Figure 5 and Figure 6 As shown, each pipe 19 is equipped with a self-discharging slag mechanism 8 at its bottom end. The self-discharging slag mechanism 8 includes a slag discharge box 801, and the slag discharge box 801 is fixed to the bottom end of the pipe 19. A rotating frame 804 is fixed to the outside of the slag discharge box 801, and a sealing seat 802 is movably connected to the inside of the rotating frame 804. A gravity block 803 is fixed to the bottom of the sealing seat 802. A slag discharge trough 805 is provided inside the slag discharge box 801, and the bottom of the slag discharge trough 805 is designed to be inclined. The cross-section of the sealing seat 802 is semi-circular. The slag discharge trough 805 is connected to the inside of the pipe 19.

[0041] In this embodiment, when the discharge port 703 is opened, it is interconnected with the slag discharge trough 805, meaning that impurities fall into the slag discharge trough 805 simultaneously and converge to one side due to the inclined design of its bottom. The sealing seat 802 tilts and rotates under the gravity on one side, thus opening the bottom opening of the slag discharge box 801 to achieve the purpose of automatic slag discharge. At the same time, the sealing seat 802 is subjected to the action of the gravity block 803, and after the slag discharge is completed, it self-balances to a horizontal state, thus achieving the purpose of self-sealing after slag discharge.

[0042] Example 3

[0043] This embodiment differs from Embodiments 1 and 2 primarily in that it enables greater functional diversity, specifically as follows: Figure 1 , Figure 3 , Figure 9 and Figure 10 As shown, a natural gas valve chamber body 12 is provided on one side of the valve body 2, and an infrared sensor 17 and a water level sensor 18 are respectively fixed on both sides inside the natural gas valve chamber body 12. A control box 14 is fixed on one side of the natural gas valve chamber body 12. An insulation cover 5 is connected to the outside of the valve body 2. A microcontroller 15 and a remote control module 16 are fixed inside the control box 14. An alarm 13 is fixed on the top of the control box 14. A temperature sensor 4 is fixed inside the insulation cover 5. Solar panels 3 are connected to both sides of the top of the insulation cover 5. A resistance heating wire 10 is provided inside the insulation cover 5. A battery storage box 11 is fixed on one side of the top of the base 9. The output terminals of the temperature sensor 4, infrared sensor 17 and water level sensor 18 are electrically connected to the input terminal of the microcontroller 15 through wires. The output terminal of the microcontroller 15 is electrically connected to the input terminals of the alarm 13, the remote control module 16, the resistance heating wire 10, the first motor 1, the electric push rod 607 and the second motor 611 through wires.

[0044] In this embodiment, an infrared sensor 17 and a water level sensor 18 are installed inside the natural gas valve chamber body 12 during use. Firstly, when the water level reaches a threshold, the infrared sensor 17 transmits information to the microcontroller 15, thereby controlling the first motor 1 to start and open the valve. Secondly, when the water level reaches the threshold, the water level sensor 18 comes into contact with the water and transmits information to the microcontroller 15, thereby controlling the first motor 1 to start and open the valve. Using two sets of sensors ensures that the system can continue to operate normally even if one sensor fails. At the same time, a temperature sensor 4 is set to monitor the real-time temperature. When the temperature is lower than a preset value, the information is transmitted to the microcontroller 15, thereby activating the resistance heating wire 10 to prevent the valve from freezing, thus ensuring that the drainage system can drain accumulated water in a timely manner and ensuring the normal operation of the pipeline.

[0045] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0046] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0047] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A valve for natural gas valve chamber, comprising a valve body (2), a base (9), the valve body (2) is fixedly connected to the top end of base (9); characterized in that The top end of the valve body (2) is fixed with a first motor (1), both sides of the valve body (2) are fixed with a pipeline (19), one end of the valve body (2) is provided with an auxiliary cleaning mechanism (6), and the auxiliary cleaning mechanism (6) comprises an operation box (606), the operation box (606) is fixedly connected to one end of the valve body (2), the bottom end of the operation box (606) is connected with an electric push rod (607) through a support, and the output end of the electric push rod (607) is fixed with a second motor (611), the second motor (611) extends to the inside of the operation box (606), the outer side of the second motor (611) output shaft is connected with a second gear (612), both sides of the inside of the operation box (606) are rotatably connected with a first rotating shaft (610), and the outer side of the first rotating shaft (610) is fixed with a first gear (609), the first gear (609) is meshed with the second gear (612), the bottom end of the outer side of the first rotating shaft (610) is connected with a rigid pull rope (608), and one end of the rigid pull rope (608) extends to the inside of the pipeline (19) and is connected with a connecting block (605), the outer side of the connecting block (605) is fixed with a scraping ring (604), and the bottom end of one side of the scraping ring (604) is fixed with a push bar (603), one side of the inside of the pipeline (19) is fixed with a sealing head (602), and the outer side of the sealing head (602) is connected with a corrugated hose (601), the other end of the corrugated hose (601) is connected with the connecting block (605), the rigid pull rope (608) penetrates the inside of the corrugated hose (601), the bottom end of the inside of the pipeline (19) is provided with a self-opening mechanism (7), and the bottom end of the pipeline (19) is provided with a self-discharging mechanism (8).

2. A valve for a natural gas valve chamber according to claim 1, characterized in that: The self-discharging mechanism (8) comprises a slag discharge box (801), and the slag discharge box (801) is fixed at the bottom end of the pipeline (19), the outer side of the slag discharge box (801) is fixed with a rotating frame (804), and the inner side of the rotating frame (804) is movably connected with a closed seat (802), the bottom end of the inside of the closed seat (802) is fixed with a gravity block (803).

3. A valve for a natural gas valve chamber according to claim 2, wherein: The inside of the slag discharge box (801) is provided with a slag discharge groove (805), and the bottom end of the slag discharge groove (805) is designed in an inclined manner.

4. A valve for a natural gas valve chamber according to claim 3, wherein: The cross section of the closed seat (802) is designed in a semicircular shape, and the slag discharge groove (805) is connected with the inside of the pipeline (19).

5. A valve for a natural gas valve chamber according to claim 1, wherein: The self-opening mechanism (7) includes a receiving groove (701), and a stop block (702) is movably connected inside the receiving groove (701). A push block (704) is fixed at the top of the stop block (702). A movable groove (707) is provided inside the pipe (19) on one side of the receiving groove (701), and a connecting rod (705) is connected inside the movable groove (707). The connecting rod (705) is connected to the stop block (702), and a spring (706) is sleeved on the outside of the connecting rod (705). A discharge port (703) is provided inside the pipe (19) below the stop block (702).

6. A valve for a natural gas valve chamber according to claim 5, wherein: The height of the push block (704) is slightly higher than the bottom height of the pipe (19), and the push block (704) is in contact with the push bar (603).

7. A valve for a natural gas valve chamber according to claim 1, wherein: A natural gas valve chamber body (12) is provided on one side of the valve body (2), and an infrared sensor (17) and a water level sensor (18) are fixed on both sides inside the natural gas valve chamber body (12). A control box (14) is fixed on one side of the natural gas valve chamber body (12), and a heat insulation cover (5) is connected to the outside of the valve body (2). A microcontroller (15) and a remote control module (16) are fixed inside the control box (14), and an alarm (13) is fixed on the top of the control box (14).

8. A valve for a natural gas valve chamber according to claim 7, wherein: A temperature sensor (4) is fixed inside the heat insulation cover (5). Solar panels (3) are connected to both sides of the top of the heat insulation cover (5). A resistance heating wire (10) is installed inside the heat insulation cover (5). A battery storage box (11) is fixed to one side of the top of the base (9).

9. A valve for a natural gas valve chamber according to claim 8, wherein: The output terminals of the temperature sensor (4), infrared sensor (17) and water level sensor (18) are electrically connected to the input terminal of the microcontroller (15) via wires. The output terminal of the microcontroller (15) is electrically connected to the input terminals of the alarm (13), remote control module (16), resistance heating wire (10), first motor (1), electric push rod (607) and second motor (611) via wires respectively.

10. A valve for a natural gas valve chamber according to claim 1, wherein: The internal groove of the scraper ring (604) is trapezoidal, and the connecting block (605) and the scraper ring (604) are integrally formed.

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