Quick clearing and purging device for ice blockage of cold box

By designing a cold box ice blockage and quick cleaning and purge device including a vaporizer, a gas-liquid separator, a compressor, etc., the production impact of the cold box due to freezing and shortening the heating time is solved, and the effect of quickly removing ice blockage and shortening the reheating time is achieved.

CN120043034APending Publication Date: 2025-05-27BAYANNAOER CHINA OIL & GAS CO LTD
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Patent Information

Application Number
CN202510345500.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-03-24
Publication Date
2025-05-27

AI Technical Summary

Technical Problem

During normal operation, the cold box is prone to freezing and blocking of the runner crystal due to the high moisture and carbon dioxide content in the natural gas, which affects normal production. The existing reheating method takes a long time and affects the factory operating time.

Method used

A quick removal and purge device for ice blocking in the cold box is designed, including a vaporizer, a gas-liquid separator, a compressor, a secondary oil component and a pressure valve. After the cold box refrigerant is processed by the vaporizer and a gas-liquid separator, the high-pressure gas enters the cold box after being adjusted by the pressure valve, and the high-temperature gas flows through the cold box to quickly remove the ice blocking and purge.

Benefits of technology

The device can quickly remove the cold box ice blockage, shorten the reheating time, improve the factory operation efficiency, and reduce production downtime.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses a quick clearing and purging device for ice blockage of a cold box. A vaporizer is arranged on the cold box, a gas-liquid separator is arranged on the vaporizer, a compressor is arranged on the gas-liquid separator, the compressor is connected with a secondary oil component, the secondary oil component is connected with a pressure valve, and the pressure valve is arranged on a cold box body. A cold box refrigerant (0.1-0.3 MPa,-196 DEG C to-60 DEG C) is vaporized through a vaporizer and then subjected to gas-liquid separation through a gas-liquid separator, a gas phase enters a compressor, high-pressure gas is subjected to secondary oil separation to remove lubricating oil and pressure adjustment through a pressure valve, a gas phase medium is further subjected to gas-liquid separation through the gas-liquid separator and enters a cold box through a pressure reducing valve, and the gas phase medium enters the compressor. High-temperature gas (0.1-0.3 MPa,-60 DEG C to-120 DEG C) flows through the cold box, ice blockage is rapidly removed, and purging is conducted; the intelligent measurement and control system is matched with a compressor oil level sensor, a compressor inlet and outlet temperature sensor, an inlet pressure sensor and an outlet pressure sensor, and the automatic measurement and control system can automatically monitor the working condition of the compressor and achieve automatic state recognition alarm and shutdown.
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Description

Technical Field

[0001] The present application relates to the technical field of cold box purging, and in particular to a cold box ice blockage rapid clearing and purging device. Background Art

[0002] The main structure of the cold box is the upper and lower heat exchangers, thermal insulation pearl sand, shell, throttling and pressure reducing valve. The internal heat exchanger is easy to freeze and block a certain flow channel of the cold box due to the high water content and high carbon dioxide content in natural gas and the water, carbon dioxide or other heavy components in the mixed refrigerant at low temperature, thus affecting normal production.

[0003] When the pressure difference of the cold box increases, the factory has to stop production for treatment. Since the temperature of the cold box in normal operation is about -55 degrees Celsius in the middle and the temperature in the lower part is controlled at about -148 degrees Celsius, after stopping, all the temperature points in the cold box need to be reheated to above 0 degrees Celsius to start purging and blasting to deal with the freezing and blockage. There are currently two reheating methods applicable to factories: one is that the cold box vaporizes and heats the liquid in the heat exchanger according to the ambient temperature. This method takes about 20 days to bring the temperature of the cold box to above 0 degrees Celsius; the other is to use liquid nitrogen through the air temperature reheater and then enter the cold box for repeated purging and venting. This method also takes nearly a week. The time it takes to reheat the cold box greatly affects the factory's operating time throughout the year. Summary of the invention

[0004] One of the purposes of the present application is to provide a device for quickly clearing ice blockage in a cold box.

[0005] In order to achieve the above objectives, the technical solution adopted in the present application is: a cold box ice blockage rapid clearing and purging device, comprising a cold box, a vaporizer is provided on the cold box, a gas-liquid separator is provided on the vaporizer, a compressor is provided on the gas-liquid separator, the compressor is connected to a secondary oil separator, the secondary oil separator is connected to a pressure valve, and the pressure valve is provided on the cold box body.

[0006] Preferably, the compressor is provided with a water cooling box and a water tank, the water cooling box is located at the output port of the compressor, the water tank is provided with a water inlet pipe and a water return pipe, the other ends of the water inlet pipe and the water return pipe are arranged on the water cooling box, the water inlet pipe is located above the water cooling box, and the water return pipe is located below the water cooling box.

[0007] Preferably, the water inlet pipe is located below the water tank, the water return pipe is located above the water tank, a pump is provided on the output port of the water return pipe, the output port of the pump is provided on the water tank, an ice storage room is provided on the external side end of the water tank, a vertical box is welded inside the ice storage room, and the vertical box is vertically arranged in the ice storage room.

[0008] Preferably, an impeller is provided at the connection between the pump and the water tank. The impeller is located inside the water tank. Rotating rods are welded to both ends of the impeller. The rotating rods are rotatably connected to the water tank. The rotating rod on one side of the impeller penetrates and is connected to the water tank, and the rotating rod extends into the vertical box of the corresponding ice storage chamber.

[0009] Preferably, a discharge port is provided on the vertical box. The discharge port is located at the bottom of the vertical box and opens along the length direction of the vertical box. The vertical box communicates with the space below the ice storage chamber. The ice storage chamber is integrally rectangular. A corresponding linkage rod is slidably connected inside the vertical box, and the linkage rod is integrally L-shaped.

[0010] Preferably, a top head is welded to one end of the linkage rod. The top head penetrates and is connected at the position of the discharge port. One end of the top head is located inside the ice storage chamber below the vertical box. A vertical rod is welded to the other end of the linkage rod.

[0011] Preferably, the vertical rod penetrates and is connected inside the vertical box. One end of the vertical rod is located inside the ice storage chamber below the vertical box. A return spring is sleeved on the vertical rod between the linkage rod and the vertical box.

[0012] Preferably, a rotating roller is provided inside the ice storage chamber below the vertical box. The rotating roller is welded to the rotating rod. A top seat is welded to the side wall of the rotating roller, and the top seat is lapped on the top head of the vertical box.

[0013] Preferably, a horizontal groove is welded to the vertical rod inside the ice storage chamber. The horizontal groove on the vertical rod is integrally in a straight shape. A corresponding cross bar is inserted into the horizontal groove on the vertical rod, and the cross bar penetrates and is connected to the horizontal groove.

[0014] Preferably, the cross bar is welded to the inclined plate. An inlet is provided on the water tank corresponding to the inclined plate. One end of the inclined plate is rotatably connected at the inlet position, and the inclined plate is arranged obliquely.

[0015] Compared with the prior art, the beneficial effects of the present application are as follows:

[0016] For this cold box ice blockage rapid clearing and purging device, the cold box refrigerant (0.1 - 0.3 MPa, -196 - -60 °C) is first vaporized by a vaporizer, then undergoes gas-liquid separation by a gas-liquid separator. The gas phase enters the compressor. The high-pressure gas filters out lubricating oil through a secondary oil separator, is pressure-regulated by a pressure valve. The gas-phase medium further undergoes gas-liquid separation by a gas-liquid separator, and enters the cold box through a pressure reducing valve. The high-temperature gas (0.1 - 0.3 MPa, -60 - -120 °C) flows through the cold box to quickly relieve ice blockage and purge; the intelligent measurement and control system is equipped with a compressor oil level, compressor inlet and outlet temperatures, inlet and outlet pressure sensors, and an automatic measurement and control system, which can automatically monitor the working conditions of the compressor, the refrigerant circulation pressure, temperature changes, and achieve automatic status recognition for alarm and shutdown.

[0017] This cold box ice blockage rapid removal and purging device is configured such that a water cooling box is provided at the output end of the compressor. The water cooling box can wrap around the output end of the compressor. The water cooling box is connected to a water tank through a water inlet pipe and a water return pipe. A pump can circulate and pump the water in the water tank into the water cooling box to cool down the output end of the compressor. There is an ice storage chamber outside the water tank where ice cubes can be stored. After the ice cubes are placed in the ice storage chamber, they will fall into a vertical box and be located at the discharge port. When the pump sends water into the water tank, it will drive an impeller to rotate. The impeller will drive a roller to rotate when it rotates. The roller will hit and break the exposed ice cubes through a top seat. The broken ice cubes will be carried to the inclined plate position. Due to the inclination of the inclined plate, the ice cubes will slide into the water tank, thereby making the water temperature in the water tank lower and better cooling the output port of the compressor.

[0018] A linkage rod is provided in the vertical box. A top head is welded to one end of the linkage rod. The top head can be located within the vertical discharge port and thus lap on the top seat. When the top seat rotates with the roller, it will drive the top head to move. The top head will be squeezed and move towards the interior of the vertical box. The linkage rod will be lifted. A vertical rod is welded to the other end of the linkage rod. The vertical rod can rise with the linkage rod. A horizontal groove is provided at the lower end of the vertical rod. The horizontal groove can be connected to a cross bar on the inclined plate. The cross bar can be connected through the horizontal groove. When the vertical rod is lifted, the inclined plate will move up with the vertical rod. When the inclined plate moves up, the cross bar will change its position within the horizontal groove, thus preventing the movement paths of the cross bar and the horizontal groove from restricting each other. When the top seat does not push the top head, the linkage rod resets, and the vertical rod also resets. The inclined plate will move down, and the inclined plate can swing up and down, enabling the broken ice to move into the water tank and not stay on the inclined plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 Schematic diagram of the overall structure of the present invention Figure 1 。

[0020] Figure 2 Schematic diagram of the overall structure of the present invention Figure 2 。

[0021] Figure 3 Schematic diagram of the overall structure of the present invention Figure 3 。

[0022] Figure 4 Schematic diagram of the overall structure of the present invention Figure 4 。

[0023] Figure 5 For the present invention Figure 2 Schematic diagram of the enlarged structure of area A.

[0024] Figure 6 For the present invention Figure 3Schematic diagram of the enlarged structure of area B.

[0025] Figure 7 For the present invention Figure 4 Schematic diagram of the enlarged structure of area C.

[0026] In the figure: 1, cold box body; 2, vaporizer; 3, gas-liquid separator; 4, compressor; 5, secondary oil separator; 6, pressure valve; 7, water-cooled box; 8, water inlet pipe; 9, pump; 10, return water pipe; 11, water tank; 12, impeller; 13, rotating rod; 14, vertical box; 15, discharge port; 16, ice storage chamber; 17, linkage rod; 18, return spring; 19, top head; 20, rotating roller; 21, top seat; 22, inclined plate; 23, cross bar; 24, cross groove; 25, inlet; 26, vertical rod. Specific embodiments

[0027] Next, in combination with specific embodiments, the present application will be further described. It should be noted that, on the premise of no conflict, the following described embodiments or technical features can be combined arbitrarily to form new embodiments.

[0028] In the description of the present application, it should be noted that for orientation terms, such as the terms "center", "horizontal", "vertical", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., the orientation and position relationships indicated are based on the orientation or position relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and should not be construed as limiting the specific protection scope of the present application.

[0029] It should be noted that the terms "first", "second", etc. in the description and claims of the present application are used to distinguish similar objects, and do not necessarily have to be used to describe a specific order or sequence.

[0030] As Figures 1 to 7 shown, the present invention provides a cold box ice blockage rapid removal and purging device, including a cold box, on which a vaporizer 2 is provided, on the vaporizer 2 a gas-liquid separator 3 is provided, on the gas-liquid separator 3 a compressor is provided, the compressor 4 is connected to a secondary oil separator 5, the secondary oil separator 5 is connected to a pressure valve 6, and the pressure valve 6 is provided on the cold box body 1. Through the cooperation of the cold box, vaporizer 2, gas-liquid separator 3, compressor 4, secondary oil separator 5 and pressure valve 6, rapid removal of ice blockage and purging can be achieved.

[0031] A water-cooling box 7 and a water tank 11 are provided on the compressor 4. The water-cooling box 7 is located at the output port position of the compressor 4. An inlet water pipe 8 and a return water pipe 10 are provided on the water tank 11. The other ends of the inlet water pipe 8 and the return water pipe 10 are provided on the water-cooling box 7. The inlet water pipe 8 is located above the water-cooling box 7, and the return water pipe 10 is located below the water-cooling box 7. By providing the water-cooling box 7 and the water tank 11 on the compressor 4, the water-cooling box 7 can be installed at the output port of the compressor 4. During the operation of the compressor 4, the temperature of the output port will continuously rise. When it reaches a certain temperature, the equipment will stop running. Through the water-cooling box 7, the output port can be efficiently cooled, thereby preventing the temperature of the output port of the compressor 4 from being too high.

[0032] The inlet water pipe 8 is located below the water tank 11, and the return water pipe 10 is located above the water tank 11. A pump 9 is provided on the output port of the return water pipe 10. The output port of the pump 9 is provided on the water tank 11. An ice storage chamber 16 is provided on the outer side end of the water tank 11. A vertical box 14 is welded inside the ice storage chamber 16. The vertical box 14 is vertically arranged in the ice storage chamber 16. Through the connection between the water tank 11 and the water-cooling box 7, the pump 9 can circulate and pump the water body in the water tank 11 into the water-cooling box 7, so as to make the water body recycled.

[0033] In implementation, by providing the water-cooling box 7 on the output end of the compressor 4, the water-cooling box 7 can wrap the output end of the compressor 4. The water-cooling box 7 is connected to the water tank 11 through the inlet water pipe 8 and the return water pipe 10. The pump 9 can circulate and pump the water body in the water tank 11 into the water-cooling box 7 to cool the output end of the compressor 4. An ice storage chamber 16 is provided outside the water tank 11. Ice cubes can be stored in the ice storage chamber 16. After the ice cubes are placed in the ice storage chamber 16, they will fall into the vertical box 14. The ice cubes will be located at the discharge port 15 position. When the pump 9 sends water into the water tank 11, it will drive the impeller 12 to rotate. The impeller 12 will drive the roller 20 to rotate when rotating. The roller 20 will break the exposed ice cubes through the top seat 21. The ice cubes will be carried to the inclined plate 22 position. Due to the inclination of the inclined plate 22, the ice cubes will slide into the water tank 11, so that the water temperature in the water tank 11 is lower, and thus the output port of the compressor 4 can be cooled better.

[0034] A connection part between the pump 9 and the water tank 11 is provided with an impeller 12. The impeller 12 is located inside the water tank 11. Rotating rods 13 are welded to both ends of the impeller 12. The rotating rods 13 are rotatably connected to the water tank 11. The rotating rod 13 on one side of the impeller 12 penetrates and is connected to the water tank 11. The rotating rod 13 extends into the vertical box 14 inside the corresponding ice storage chamber 16. By providing the impeller 12 in the water tank 11, when the pump 9 pumps water into the water tank 11, the water body will drive the impeller 12 to rotate. When the impeller 12 rotates, it will drive the roller 20 to rotate through the rotating rod 13. The roller 20 will break the ice cubes and carry the broken ice downwards.

[0035] The vertical box 14 is provided with a discharge port 15 at the bottom of the vertical box 14. The discharge port 15 is opened along the length direction of the vertical box 14. The vertical box 14 communicates with the space below the ice storage chamber 16. The ice storage chamber 16 is integrally rectangular. A corresponding linkage rod 17 is slidably connected inside the vertical box 14, and the linkage rod 17 is integrally L-shaped. By means of the linkage rod 17, the driving of the top head 19 and the vertical rod 26 can be realized. The top head 19 can be lapped on the top seat 21 of the rotating roller 20, and the rotating roller 20 can move the top head 19 upward.

[0036] A top head 19 is welded to one end of the linkage rod 17. The top head 19 is connected through the discharge port 15. One end of the top head 19 is located inside the ice storage chamber 16 below the vertical box 14. A vertical rod 26 is welded to the other end of the linkage rod 17. When the top head 19 moves upward, the linkage rod 17 will move upward. The linkage rod 17 can carry the vertical rod 26 upward, and finally the vertical rod 26 will drive the inclined plate 22 to swing, so that the crushed ice can move into the water tank 11.

[0037] The vertical rod 26 is connected through the vertical box 14. One end of the vertical rod 26 is located inside the ice storage chamber 16 below the vertical box 14. A return spring 18 is sleeved on the vertical rod 26 between the linkage rod 17 and the vertical box 14. By sleeving the return spring 18 on the vertical rod 26 inside the vertical box 14, the return spring 18 will drive the vertical rod 26 and the linkage rod 17 to reset as a whole, so as to ensure the next activity.

[0038] A rotating roller 20 is arranged inside the ice storage chamber 16 below the vertical box 14. The rotating roller 20 is welded to the rotating rod 13. A top seat 21 is welded to the side wall of the rotating roller 20. The top seat 21 is lapped on the top head 19 of the vertical box 14. Through the connection between the rotating rod 13 and the rotating roller 20, the rotating roller 20 will rotate following the impeller 12, so as to realize the crushing of the ice by the rotating roller 20.

[0039] A horizontal groove 24 is welded to the vertical rod 26 inside the ice storage chamber 16. The horizontal groove 24 on the vertical rod 26 is integrally in a straight shape. A corresponding cross bar 23 is inserted into the horizontal groove 24 on the vertical rod 26. The cross bar 23 is connected through the horizontal groove 24. Through the connection between the horizontal groove 24 and the cross bar 23, the cross bar 23 can move along the horizontal groove 24, so that their moving trajectories will not affect each other.

[0040] The cross bar 23 is welded to the inclined plate 22. An inlet 25 is provided on the water tank 11 corresponding to the inclined plate 22. One end of the inclined plate 22 is rotatably connected at the inlet 25 position, and the inclined plate 22 is arranged obliquely. After the inclined plate 22 is driven by the vertical rod 26, it can swing up and down, so that the crushed ice can move into the water tank 11 along the inclined plate 22.

[0041] During implementation, a linkage rod 17 is arranged inside the vertical box 14. A top head 19 is welded to one end of the linkage rod 17. The top head 19 can be located inside the vertical discharge port 15, and thus can be lapped on the top seat 21. When the top seat 21 rotates following the rotating roller 20, it will drive the top head 19 to move. The top head 19 will be squeezed and move towards the inside of the vertical box 14, and the linkage rod 17 will be lifted. A vertical rod 26 is welded to the other end of the linkage rod 17. The vertical rod 26 can rise following the linkage rod 17. A horizontal groove 24 is arranged at the lower end of the vertical rod 26. The horizontal groove 24 can be connected to the cross bar 23 on the inclined plate 22. The cross bar 23 can be connected through the horizontal groove 24. When the vertical rod 26 is lifted, the inclined plate 22 will move up following the vertical rod 26. When the inclined plate 22 moves up, the cross bar 23 will change its position inside the horizontal groove 24, thereby preventing the moving paths of the cross bar 23 and the horizontal groove 24 from restricting each other. When the top seat 21 does not push the top head 19, the linkage rod 17 resets, and the vertical rod 26 also resets. The inclined plate 22 will move down, and the inclined plate 22 can swing up and down, so that the crushed ice can move into the water tank 11 and will not stay on the inclined plate 22.

[0042] The working principle of the present invention is as follows: The refrigerant in the cold box (0.1 - 0.3 MPa, -196 - -60 °C) is first vaporized through the vaporizer 2, and then undergoes gas-liquid separation through the gas-liquid separator 3. The gas phase enters the compressor 4. The high-pressure gas filters out the lubricating oil through the secondary oil separator 5, and the pressure is regulated through the pressure valve 6. The gas-phase medium further undergoes gas-liquid separation through the gas-liquid separator 3 and enters the cold box through the pressure reducing valve. The high-temperature gas (0.1 - 0.3 MPa, -60 - -120 °C) flows through the cold box, quickly relieves the ice blockage and purges. By arranging the water-cooled box 7 at the output end of the compressor 4, the water-cooled box 7 can wrap the output end of the compressor 4. The water-cooled box 7 is connected to the water tank 11 through the water inlet pipe 8 and the water return pipe 10. The pump 9 can circulate and pump the water in the water tank 11 into the water-cooled box 7 to cool down the output end of the compressor 4. An ice storage chamber 16 is arranged outside the water tank 11, and the ice storage chamber 16 can store ice cubes. After the ice cubes are placed in the ice storage chamber 16, they will fall into the vertical box 14, and the ice cubes will be located at the discharge port 15. When the pump 9 sends water into the water tank 11, it will drive the impeller 12 to rotate. When the impeller 12 rotates, it will drive the roller 20 to rotate. The roller 20 will hit and break the exposed ice cubes through the top seat 21. The ice cubes will be carried to the position of the inclined plate 22. Due to the inclination of the inclined plate 22, the ice cubes will slide into the water tank 11, making the water temperature in the water tank 11 lower, and thus better cooling the output port of the compressor 4. A linkage rod 17 is arranged in the vertical box 14. One end of the linkage rod 17 is welded with a top head 19, and the top head 19 can be located in the vertical discharge port 15 and thus lap on the top seat 21. When the top seat 21 rotates with the roller 20, it will drive the top head 19 to move. The top head 19 will be extruded and move towards the inside of the vertical box 14, and the linkage rod 17 will be lifted. The other end of the linkage rod 17 is welded with a vertical rod 26, and the vertical rod 26 can rise with the linkage rod 17. A horizontal groove 24 is arranged at the lower end of the vertical rod 26, and the horizontal groove 24 is connected to the cross bar 23 on the inclined plate 22. The cross bar 23 can be connected through the horizontal groove 24. When the vertical rod 26 is lifted, the inclined plate 22 will move up with the vertical rod 26. When the inclined plate 22 moves up, the cross bar 23 will change its position in the horizontal groove 24, thus preventing the moving paths of the cross bar 23 and the horizontal groove 24 from restricting each other. When the top seat 21 does not push the top head 19, the linkage rod 17 resets, and the vertical rod 26 also resets. The inclined plate 22 will move down, and the inclined plate 22 can swing up and down, so that the crushed ice can move into the water tank 11 and will not stay on the inclined plate 22.

[0043] The basic principles, main features and advantages of the present application have been described above. Those skilled in the art should understand that the present application is not limited by the above embodiments, and what is described in the above embodiments and the specification is only the principle of the present application. Without departing from the spirit and scope of the present application, various changes and improvements will occur to the present application, and these changes and improvements all fall within the scope of the present application claimed. The scope of protection required by the present application is defined by the appended claims and their equivalents.

Claims

1. A cold box ice blockage rapid removal and purge device, comprising a cold box, characterized in that: The cold box is provided with a vaporizer (2), the vaporizer (2) is provided with a gas-liquid separator (3), the gas-liquid separator (3) is provided with a compressor, the compressor (4) is connected to a secondary oil separator (5), the secondary oil separator (5) is connected to a pressure valve (6), and the pressure valve (6) is provided on the cold box body (1).

2. The cold box ice blockage rapid clearing and purging device according to claim 1, characterized in that: The compressor (4) is provided with a water cooling box (7) and a water tank (11); the water cooling box (7) is located at the output port of the compressor (4); the water tank (11) is provided with a water inlet pipe (8) and a water return pipe (10); the other ends of the water inlet pipe (8) and the water return pipe (10) are provided on the water cooling box (7); the water inlet pipe (8) is located above the water cooling box (7); and the water return pipe (10) is located below the water cooling box (7).

3. The cold box ice blockage rapid clearing and purging device according to claim 2, characterized in that: The water inlet pipe (8) is located below the water tank (11), the water return pipe (10) is located above the water tank (11), a pump (9) is arranged on the output port of the water return pipe (10), the output port of the pump (9) is arranged on the water tank (11), an ice storage chamber (16) is arranged on the outer side end of the water tank (11), a vertical box (14) is welded inside the ice storage chamber (16), and the vertical box (14) is vertically arranged in the ice storage chamber (16).

4. The cold box ice blockage rapid clearing and purging device according to claim 3, characterized in that: An impeller (12) is provided at the connection between the pump (9) and the water tank (11), the impeller (12) is located inside the water tank (11), and rotating rods (13) are welded to both ends of the impeller (12), the rotating rod (13) is rotatably connected to the water tank (11), and the rotating rod (13) on one side of the impeller (12) is connected to the water tank (11) through and through, and the rotating rod (13) extends into the interior of a vertical box (14) corresponding to the ice storage room (16).

5. The cold box ice blockage rapid clearing and purging device according to claim 3, characterized in that: The vertical box (14) is provided with a discharge port (15), the discharge port (15) is located at the bottom of the vertical box (14), the discharge port (15) is opened along the length of the vertical box (14), the vertical box (14) and the space below the ice storage chamber (16) are mutually connected, the ice storage chamber (16) is arranged in a rectangular shape as a whole, and a corresponding linkage rod (17) is slidably connected inside the vertical box (14), and the linkage rod (17) is arranged in an L shape as a whole.

6. The cold box ice blockage rapid clearing and purging device according to claim 5, characterized in that: A top head (19) is welded to one end of the linkage rod (17), and the top head (19) is connected to the discharge port (15). One end of the top head (19) is located inside the ice storage chamber (16) below the vertical box (14), and the other end of the linkage rod (17) is welded to a vertical rod (26).

7. The cold box ice blockage rapid clearing and purging device according to claim 6, characterized in that: The vertical rod (26) is connected through the vertical box (14), one end of the vertical rod (26) is located in the ice storage chamber (16) below the vertical box (14), and a return spring (18) is sleeved on the vertical rod (26) between the linkage rod (17) and the vertical box (14).

8. The cold box ice blockage rapid clearing and purging device according to claim 7, characterized in that: A roller (20) is arranged inside the ice storage chamber (16) below the vertical box (14), the roller (20) is welded to the rotating rod (13), a top seat (21) is welded to the side wall of the roller (20), and the top seat (21) is overlapped on the top head (19) of the vertical box (14).

9. The cold box ice blockage rapid clearing and purging device according to claim 7, characterized in that: A transverse groove (24) is welded on the vertical rod (26) in the ice storage chamber (16); the transverse groove (24) on the vertical rod (26) is arranged in a straight line as a whole; a corresponding transverse rod (23) is inserted into the transverse groove (24) of the vertical rod (26); and the transverse rod (23) penetrates and is connected to the transverse groove (24).

10. The cold box ice blockage rapid clearing and purging device according to claim 9, characterized in that: The cross bar (23) is welded to the inclined plate (22); an inlet (25) is provided on the water tank (11) corresponding to the inclined plate (22); one end of the inclined plate (22) is rotatably connected to the inlet (25); and the inclined plate (22) is arranged in an inclined manner.