Gasification furnace liquid level meter flushing device

Abstract

The utility model discloses a gasification furnace liquidometer flushing device which comprises a liquidometer body and a regulating valve, the regulating valve is installed at the top end of the liquidometer body, a pressure valve is installed at the top end of the regulating valve, a switching valve is installed at the bottom end of the liquidometer body, a display panel is installed on the outer wall of the liquidometer body, and the display panel is installed on the outer wall of the liquidometer body. A flushing pipe is installed at the bottom end of the adapter valve, a mechanical valve is installed at the end, away from the adapter valve, of the flushing pipe, an adapter pipe is installed at the end, away from the flushing pipe, of the mechanical valve, and a filtering tank is installed at the end, away from the mechanical valve, of the adapter pipe. According to the flushing device for the gasification furnace liquidometer, the gasification furnace liquidometer can be conveniently and independently controlled to be flushed by the flushing device, automatic control pressure relief type safety protection is facilitated, the flushing liquid can be conveniently and rapidly filtered and purified, damage to equipment caused by overlarge pressure during flushing is prevented, and the flushing effect of the gasification furnace liquidometer is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of flushing devices, in particular to a flushing device for a gasifier liquid level gauge. Background Art

[0002] The reason why the gasifier liquid level gauge needs to be cleaned is that when the gasifier is in operation, water or steam containing impurities or salts will enter the steam and water connecting pipes and the glass tube in the water level gauge. These impurities and salts will adhere to the inner walls of the steam-water connecting pipes and the glass tubes. Over time, the cross-section of the steam and water connecting pipes will gradually decrease until the water level gauge can no longer truly reflect the water level of the gasifier. If the gasifier liquid level gauge is not cleaned for a long time, it will affect the safe use of the gasifier and even form a false water level, causing water shortage or water fullness accidents.

[0003] For example, a normal flushing device for a double-flange liquid level gauge of a gasifier disclosed in the authorization announcement number CN212821403U includes: a gasifier, a balancing cylinder, a connecting pipeline on the lower gasifier side, a liquid phase stop valve of the liquid level gauge, a connecting pipeline on the lower balancing cylinder side, a connecting pipeline on the upper gasifier side, a gas phase stop valve of the liquid level gauge, a connecting pipeline on the upper balancing cylinder side, a liquid level gauge flushing water pipe, a flushing water pipe stop valve and a nozzle; although it realizes the normal flushing device for a double-flange liquid level gauge of a gasifier provided in the present application, it is a normal flushing method rather than an intermittent flushing method. That is to say, during the operation of the gasifier, the flushing water is also continuously sprayed toward the gasifier through the nozzle, thereby effectively preventing the connecting pipeline on the upper gasifier side, the gas phase stop valve of the liquid level gauge and the connecting pipeline on the upper balancing cylinder side from being blocked, thereby ensuring the accuracy of the liquid level gauge measurement; in addition, during the flushing process, the normal measurement display of the liquid level gauge is not affected;

[0004] However, the problem that the existing flushing device is not conducive to the convenient individual control flushing of the gasifier liquid level meter, the convenient automatic control pressure relief safety protection, the convenient filtering and purification of the flushing liquid, and the excessive pressure during flushing can easily cause damage to the equipment, affecting the flushing effect of the gasifier liquid level meter. Utility Model Content

[0005] The purpose of the utility model is to provide a gasifier liquid level gauge flushing device to solve the problem that the flushing device proposed in the above background technology is not convenient for the individual controlled flushing of the gasifier liquid level gauge, is not convenient for automatic control of pressure relief safety protection, is not convenient for the convenient filtering and purification of the flushing liquid, and that excessive pressure during flushing can easily cause damage to the equipment, thereby affecting the flushing effect of the gasifier liquid level gauge.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a gasifier liquid level gauge flushing device, comprising a liquid level gauge body and a regulating valve, a regulating valve is installed at the top of the liquid level gauge body, a pressure valve is installed at the top of the regulating valve, a switching valve is installed at the bottom of the liquid level gauge body, a display panel is installed on the outer wall of the liquid level gauge body, a flushing pipe is installed at the bottom of the switching valve, a mechanical valve is installed at the end of the flushing pipe away from the switching valve, a switching pipe is installed at the end of the mechanical valve away from the flushing pipe, a filter tank is installed at the end of the switching pipe away from the mechanical valve, an upper control valve is installed on the outer wall of the liquid level gauge body below the regulating valve, a gasifier liquid outlet pipe is installed at the end of the upper control valve away from the liquid level gauge body, a lower control valve is installed on the outer wall of the liquid level gauge body below the upper control valve, and a gasifier liquid inlet pipe is installed at the end of the lower control valve away from the liquid level gauge body.

[0007] Preferably, a cover plate is installed at one end of the filter tank away from the transfer tube, and a transmission pipe is installed on the outer wall of the cover plate.

[0008] Preferably, a pressure relief chamber is installed on the outer wall of the pressure valve, a piston chamber is arranged inside the pressure valve, and a piston head is arranged inside the piston chamber.

[0009] Preferably, a through cavity is provided inside the pressure valve below the piston head, a spring is installed inside the pressure valve above the piston head, and the bottom end of the spring is connected to the piston head.

[0010] Preferably, a connecting pipe is installed inside the cover plate and extends to the inside of the transmission pipe, a filter screen cylinder is installed inside the filter tank and the connecting pipe extends to the inside of the filter screen cylinder, and a sealing ring is installed at one end of the filter screen cylinder close to the filter tank.

[0011] Preferably, a plurality of groups of bolts with equal spacing are installed on one end of the cover plate close to the filter tank, and the cover plate is connected to the filter tank via the bolts, and a handle is installed on the outer wall of the cover plate.

[0012] Compared with the prior art, the utility model has the following beneficial effects: the flushing device not only realizes the convenient and individually controlled flushing of the gasifier liquid level gauge by the flushing device, facilitates the automatic control pressure relief safety protection, facilitates the convenient filtering and purification of the flushing liquid, but also prevents the damage to the equipment caused by excessive pressure during flushing, thereby improving the flushing effect of the gasifier liquid level gauge;

[0013] (1) By connecting the gasifier liquid outlet pipe to the gasifier, and connecting the gasifier liquid inlet pipe to the gasifier, the liquid level in the gasifier is displayed by the liquid level meter body and the display panel. When the liquid level meter body needs to be flushed, the upper control valve is closed, and the external flushing liquid enters the interior of the connecting pipe through the transmission pipe, enters the interior of the filter tank after being filtered by the filter screen, and is discharged from the gasifier liquid inlet pipe. The lower control valve is closed, and the flushing liquid inside the liquid level meter body is discharged from the gasifier liquid outlet pipe, so as to facilitate the independent controlled cleaning of the gasifier liquid level meter, realize the convenient and independent controlled flushing of the gasifier liquid level meter by the flushing device, facilitate the use of multi-mode controlled flushing, and improve the flushing effect of the gasifier liquid level meter;

[0014] (2) When the flushing liquid enters the through cavity, when the liquid pressure is greater than the elastic force of the spring, the piston head is driven to move to compress the spring, and the liquid enters the pressure relief cavity through the through cavity and the piston cavity, and the pressure relief cavity performs the pressure relief operation, thus realizing the automatic control pressure relief safety protection of the gasifier liquid level gauge flushing device, and preventing the equipment from being damaged by excessive pressure during flushing;

[0015] (3) The cleaning liquid is filtered through the filter cylinder to remove dirt in the cleaning liquid to prevent clogging of the gasifier liquid level gauge. When the filter cylinder needs to be cleaned, the mechanical valve is closed and the bolts are detached from the cover plate and the inside of the filter tank to facilitate the disassembly and cleaning of the filter cylinder. The gasifier liquid level gauge flushing device realizes convenient filtering and purification of the flushing liquid, avoids dirt in the flushing liquid from entering the gasifier liquid level gauge and causing clogging, and facilitates the disassembly of the filter. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the three-dimensional structure of the liquid level meter body of the utility model;

[0018] Figure 3 It is a schematic diagram of an enlarged front cross-sectional structure of the pressure valve of the utility model;

[0019] Figure 4 It is a front view cross-sectional structural schematic diagram of the utility model.

[0020] In the figure: 1. Liquid level meter body; 2. Upper control valve; 3. Gasifier liquid outlet pipe; 4. Regulating valve; 5. Pressure valve; 6. Display panel; 7. Gasifier liquid inlet pipe; 8. Lower control valve; 9. Transfer valve; 10. Flushing pipe; 11. Mechanical valve; 12. Transfer pipe; 13. Filter tank; 14. Bolt; 15. Handle; 16. Cover plate; 17. Transmission pipe; 18. Through cavity; 19. Pressure relief cavity; 20. Spring; 21. Piston head; 22. Piston cavity; 23. Filter screen cylinder; 24. Sealing ring; 25. Connecting pipe. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-4 The utility model provides an embodiment: a gasifier liquid level gauge flushing device, comprising a liquid level gauge body 1 and a regulating valve 4, a regulating valve 4 is installed at the top of the liquid level gauge body 1, a pressure valve 5 is installed at the top of the regulating valve 4, a switching valve 9 is installed at the bottom of the liquid level gauge body 1, a display panel 6 is installed on the outer wall of the liquid level gauge body 1, a flushing pipe 10 is installed at the bottom of the switching valve 9, a mechanical valve 11 is installed at one end of the flushing pipe 10 away from the switching valve 9, and the mechanical valve 11 plays a role of on-off control, a switching pipe 12 is installed at one end of the mechanical valve 11 away from the flushing pipe 10, and a filter tank 13 is installed at one end of the switching pipe 12 away from the mechanical valve 11, and an upper control valve 2 is installed on the outer wall of the liquid level gauge body 1 below the regulating valve 4, and the upper control valve 2 plays a role of on-off control;

[0023] The end of the upper control valve 2 away from the liquid level meter body 1 is installed with a gasifier liquid outlet pipe 3, the lower control valve 8 is installed on the outer wall of the liquid level meter body 1 below the upper control valve 2, and the lower control valve 8 plays a role of on-off control, and the end of the lower control valve 8 away from the liquid level meter body 1 is installed with a gasifier liquid inlet pipe 7, and the end of the filter tank 13 away from the transfer pipe 12 is installed with a cover plate 16, and the outer wall of the cover plate 16 is installed with a transmission pipe 17;

[0024] When in use, the gasifier liquid outlet pipe 3 is connected to the gasifier, the gasifier liquid inlet pipe 7 is connected to the gasifier, the lower control valve 8 and the upper control valve 2 are opened, and the liquid level in the gasifier is displayed by the liquid level meter body 1 and the display panel 6. When the liquid level meter body 1 needs to be flushed, the upper control valve 2 is closed, and the external flushing liquid enters the interior of the connecting pipe 25 through the transmission pipe 17, enters the interior of the filter tank 13 after being filtered by the filter screen cylinder 23, enters the interior of the liquid level meter body 1 through the transfer pipe 12, the mechanical valve 11, the flushing pipe 10, and the transfer valve 9, and is discharged from the gasifier liquid inlet pipe 7. The lower control valve 8 is closed, and the flushing liquid inside the liquid level meter body 1 is discharged from the gasifier liquid outlet pipe 3, so as to facilitate the independent controlled cleaning of the gasifier liquid level meter, realize the convenient and individually controlled flushing of the gasifier liquid level meter by the flushing device, facilitate the use of multi-mode controlled flushing, and improve the flushing effect of the gasifier liquid level meter;

[0025] A pressure relief chamber 19 is installed on the outer wall of the pressure valve 5, a piston chamber 22 is arranged inside the pressure valve 5, a piston head 21 is arranged inside the piston chamber 22, the piston head 21 is slidably connected with the piston chamber 22, a through chamber 18 is arranged inside the pressure valve 5 below the piston head 21, a spring 20 is installed inside the pressure valve 5 above the piston head 21, and the bottom end of the spring 20 is connected to the piston head 21, and the spring 20 plays a role of elastic support;

[0026] When the level gauge body 1 is flushed, when the flushing liquid pressure is too high, the flushing liquid enters the through cavity 18. When the liquid pressure is greater than the elastic force of the spring 20, the piston head 21 is driven to move, so that the spring 20 is compressed. The liquid passes through the through cavity 18 and the piston cavity 22 and enters the pressure relief cavity 19. The pressure relief cavity 19 performs the pressure relief operation, thus realizing the automatic control pressure relief safety protection of the gasifier level gauge flushing device, and preventing the equipment from being damaged by excessive pressure during flushing.

[0027] A connecting pipe 25 is installed inside the cover plate 16, and the connecting pipe 25 extends to the inside of the transmission pipe 17. A filter screen cartridge 23 is installed inside the filter tank 13. The filter screen cartridge 23 plays a role of filtering and purification, and the connecting pipe 25 extends to the inside of the filter screen cartridge 23. A sealing ring 24 is installed at one end of the filter screen cartridge 23 close to the filter tank 13. Multiple groups of bolts 14 with equal spacing are installed at one end of the cover plate 16 close to the filter tank 13, and the cover plate 16 is connected to the filter tank 13 through the bolts 14. A handle 15 is installed on the outer wall of the cover plate 16;

[0028] During use, the cleaning liquid is filtered through the filter screen cylinder 23 to remove dirt in the cleaning liquid to prevent clogging of the gasifier liquid level gauge. When the filter screen cylinder 23 needs to be cleaned, the mechanical valve 11 is closed, and the bolts 14 are detached from the cover plate 16 and the inside of the filter tank 13 to facilitate the disassembly and cleaning of the filter screen cylinder 23. The gasifier liquid level gauge flushing device realizes convenient filtering and purification of the flushing liquid, avoids dirt in the flushing liquid from entering the gasifier liquid level gauge to cause clogging, and facilitates the disassembly of the filter screen.

[0029] Working principle: When in use, connect an external power supply, first connect the gasifier liquid outlet pipe 3 to the gasifier, connect the gasifier liquid inlet pipe 7 to the gasifier, open the lower control valve 8 and the upper control valve 2, and the liquid level in the gasifier is displayed by the liquid level meter body 1 and the display panel 6. When it is necessary to flush the liquid level meter body 1, close the upper control valve 2, and the external flushing liquid enters the interior of the connecting pipe 25 through the transmission pipe 17, and enters the interior of the filter tank 13 after being filtered by the filter screen cylinder 23, and enters the interior of the liquid level meter body 1 through the transfer tube 12, the mechanical valve 11, the flushing pipe 10, and the transfer valve 9, and is discharged from the gasifier liquid inlet pipe 7. Close the lower control valve 8, and the flushing liquid inside the liquid level meter body 1 is discharged from the gasifier liquid outlet pipe 3 to facilitate gasification. The furnace level gauge is cleaned independently controlled, and then when the level gauge body 1 is flushed, when the flushing liquid pressure is too high, the flushing liquid enters the through cavity 18, and when the liquid pressure is greater than the elastic force of the spring 20, the piston head 21 is driven to move to compress the spring 20, and the liquid passes through the through cavity 18 and the piston cavity 22 into the pressure relief cavity 19, and the pressure relief cavity 19 performs pressure relief operation, and then the cleaning liquid is filtered through the filter mesh cylinder 23 to remove dirt in the cleaning liquid to prevent the gasification furnace level gauge from being blocked. When the filter mesh cylinder 23 needs to be cleaned, the mechanical valve 11 is closed, and the bolts 14 are detached from the cover plate 16 and the inside of the filter tank 13 to facilitate the disassembly and cleaning of the filter mesh cylinder 23 to complete the use of the flushing device.

Claims

1. A gasifier liquid level gauge flushing device, comprising a liquid level gauge body (1) and a regulating valve (4), characterized in that: A regulating valve (4) is installed at the top of the liquid level meter body (1), a pressure valve (5) is installed at the top of the regulating valve (4), a switching valve (9) is installed at the bottom of the liquid level meter body (1), a display panel (6) is installed on the outer wall of the liquid level meter body (1), a flushing pipe (10) is installed at the bottom of the switching valve (9), a mechanical valve (11) is installed at one end of the flushing pipe (10) away from the switching valve (9), and a switching pipe (11) is installed at one end of the mechanical valve (11) away from the flushing pipe (10). 12), a filter tank (13) is installed at one end of the transfer tube (12) away from the mechanical valve (11), an upper control valve (2) is installed on the outer wall of the liquid level gauge body (1) below the regulating valve (4), a gasifier liquid outlet pipe (3) is installed at one end of the upper control valve (2) away from the liquid level gauge body (1), a lower control valve (8) is installed on the outer wall of the liquid level gauge body (1) below the upper control valve (2), and a gasifier liquid inlet pipe (7) is installed at one end of the lower control valve (8) away from the liquid level gauge body (1).

2. A gasifier liquid level gauge flushing device according to claim 1, characterized in that: A cover plate (16) is installed at one end of the filter tank (13) away from the transfer tube (12), and a transmission tube (17) is installed on the outer wall of the cover plate (16).

3. The gasifier liquid level gauge flushing device according to claim 1, characterized in that: A pressure relief chamber (19) is installed on the outer wall of the pressure valve (5), a piston chamber (22) is arranged inside the pressure valve (5), and a piston head (21) is arranged inside the piston chamber (22).

4. A gasifier liquid level gauge flushing device according to claim 3, characterized in that: A through cavity (18) is provided inside the pressure valve (5) below the piston head (21), and a spring (20) is installed inside the pressure valve (5) above the piston head (21), and the bottom end of the spring (20) is connected to the piston head (21).

5. The gasifier liquid level gauge flushing device according to claim 2, characterized in that: A connecting pipe (25) is installed inside the cover plate (16), and the connecting pipe (25) extends to the inside of the transmission pipe (17); a filter screen cylinder (23) is installed inside the filter tank (13), and the connecting pipe (25) extends to the inside of the filter screen cylinder (23); and a sealing ring (24) is installed at one end of the filter screen cylinder (23) close to the filter tank (13).

6. A gasifier liquid level gauge flushing device according to claim 2, characterized in that: A plurality of groups of bolts (14) are installed at equal intervals on one end of the cover plate (16) close to the filter tank (13), and the cover plate (16) is connected to the filter tank (13) via the bolts (14). A handle (15) is installed on the outer wall of the cover plate (16).

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