Deicing device for low-temperature system

Abstract

The invention relates to the technical field of low-temperature system integration, and provides a deicing device for a low-temperature system. The low-temperature system deicing device comprises a dredging pipe assembly, a deicing assembly and a gas supply assembly. Wherein the deicing assembly is arranged at one end of the dredging pipe assembly and is used for heating an ice blockage element of an ice blockage part in the low-temperature system, so that the ice blockage part is gasified; and the gas supply assembly is communicated with the dredging pipe assembly and is used for scattering miscellaneous gas gasified by the ice blockage part or discharging the miscellaneous gas out of the low-temperature system. According to the deicing device, the defects that time and labor are wasted, the cost is high, and the low-temperature liquid system needs to stop working to deice when the low-temperature liquid system is deiced in the prior art are overcome, and the deicing device which can ensure that the low-temperature liquid system and scientific experiments are normally carried out while deicing operation in the system is carried out is realized.

Description

Technical Field

[0001] The present invention relates to the technical field of cryogenic system integration, and in particular to a cryogenic system deicing device. Background Art

[0002] Currently, cryogenic liquid systems, such as liquid helium cryogenic systems or liquid nitrogen cryogenic systems, are required in the fields of superconducting electronics, quantum technology, and cryogenic biomedicine. In such cryogenic systems, there are many complex liquid or gas transmission pipelines. During the use of the system, air may enter the interior of the pipeline due to improper operation or external reasons, causing ice to form inside the pipeline and blockage. After blockage occurs, the only option is usually to rewarm the system, which is time-consuming, labor-intensive, and costly, and is extremely detrimental to the smooth progress of various scientific experiments. Therefore, there is an urgent need to design a deicing device that can perform deicing operations inside the system under normal conditions of the cryogenic liquid system and scientific experiments. Summary of the Invention

[0003] The present invention provides a low-temperature system deicing device to solve the defects of the prior art in that deicing a low-temperature liquid system is time-consuming, labor-intensive, and costly, and requires the low-temperature liquid system to be stopped before deicing. The present invention realizes a deicing device that can ensure that the low-temperature liquid system and scientific experiments are carried out normally while performing deicing operations inside the system.

[0004] The present invention provides a low-temperature system deicing device, comprising:

[0005] Dredge pipe assembly;

[0006] An ice-removing assembly is provided at one end of the dredging pipe assembly and is used to heat ice-blocking elements in an ice-blocking portion of a low-temperature system to vaporize the ice-blocking portion;

[0007] The gas supply assembly is connected to the dredging pipe assembly and is used to disperse or discharge the miscellaneous gas vaporized from the ice blockage into the cryogenic system.

[0008] According to a low-temperature system deicing device provided by the present invention, the dredging pipe assembly includes a first pipe body and a second pipe body;

[0009] The first tube body is sleeved on the outside of the second tube body, and a flow channel is formed between the first tube body and the second tube body, and the gas supply assembly is in communication with the flow channel;

[0010] The first end of the second tube body extends to the outside of the first tube body, and a gap is provided at the connection between the first end of the second tube body and the end surface of the first tube body. The flow channel is connected to the outside of the dredging pipe assembly through the gap.

[0011] According to a low-temperature system deicing device provided by the present invention, the deicing assembly includes a heating element and a temperature measuring element, and the heating element and the temperature measuring element are both arranged at the first end of the second tube body.

[0012] According to a low-temperature system deicing device provided by the present invention, it also includes a temperature controller, which is electrically connected to the temperature measuring element through a first connecting line, and the temperature controller is electrically connected to the heating element through a second connecting line. The temperature controller is used to control the operation of the heating element and the temperature measuring element.

[0013] According to a cryogenic system deicing device provided by the present invention, a reflux baffle is further provided at the first end of the second tube body, and the reflux baffle is used to adjust the flow direction of the gas ejected from the gas supply assembly to allow the miscellaneous gas to be discharged from the cryogenic system.

[0014] According to the present invention, a low-temperature system deicing device also includes a sealing assembly, which includes a quick-release part and a gas outlet pipe; the gas outlet pipe is connected to the quick-release part, and the gas outlet pipe is provided with a gas guide valve group; the first tube body passes through the quick-release part and the gas outlet pipe in sequence.

[0015] According to a low-temperature system deicing device provided by the present invention, a sealing member is provided at one end of the gas outlet pipe away from the quick-release member, the first tube body passes through the sealing member, and the first tube body is movably and sealingly connected to the sealing member.

[0016] According to a low-temperature system deicing device provided by the present invention, the gas guide valve group includes a safety valve and a first stop valve that are interconnected, and the first stop valve is connected to the gas outlet pipe.

[0017] According to a cryogenic system deicing device provided by the present invention, the gas supply assembly includes a gas supply tank, and the gas supply tank is connected to the flow channel through a gas delivery pipe.

[0018] According to a low-temperature system deicing device provided by the present invention, the gas outlet pipe is provided with a second shut-off valve, one end of the second shut-off valve is communicated with the flow channel, and the other end of the second shut-off valve is communicated with the gas delivery pipe.

[0019] The above one or more technical solutions in the embodiments of the present invention have at least one of the following technical effects:

[0020] The present invention arranges an ice-removing assembly at the first end of a dredging pipe assembly, and then pushes the dredging pipe assembly to transport the ice-removing assembly to the ice blockage in the pipe of the cryogenic system. The ice-removing assembly is heated to vaporize the elements of the ice blockage, thereby releasing the impurities in the ice blockage. The released impurities are then blown away or discharged from the cryogenic system through the gas supply assembly. During the entire process, there is no need to reheat the entire system, so the operation can be carried out while the entire system is operating normally. The deicing method of the present invention is short in time, low in cost, and easy to operate, greatly improving the efficiency of removing ice blockages in the cryogenic system. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction is given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 This is a system structure diagram of the low-temperature system deicing device provided by the present invention;

[0023] Figure 2 Is the dredge pipe assembly in Figure 1 Cross-sectional view in the AA direction.

[0024] Reference numerals:

[0025] 100: dredging pipe assembly; 110: first pipe body; 120: second pipe body; 130: connecting piece;

[0026] 200: de-icing component; 210: heating element; 220: temperature measuring element;

[0027] 300: gas supply assembly; 310: gas supply tank; 320: gas delivery pipe;

[0028] 400: Blocking assembly; 410: Quick release assembly; 420: Gas outlet pipe; 430: Gas guide valve assembly; 431: Safety valve; 432: First stop valve; 440: Second stop valve; 450: Sealing element;

[0029] 500: temperature controller; 510: first connecting line; 520: second connecting line;

[0030] 600: Backflow blocker. DETAILED DESCRIPTION

[0031] To make the objectives, technical solutions, and advantages of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0032] In the description of the embodiments of the present invention, it should be noted that, unless otherwise expressly specified and limited, the terms "first" and "second" are numbered for the purpose of clearly illustrating the product components and do not represent any substantial difference. The directions of "up" and "down" shall be based on the directions shown in the accompanying drawings. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present invention can be understood according to the specific circumstances. In addition, the meaning of "multiple" is two or more. In the specification, "and / or" means at least one of the connected objects, and the character " / " generally indicates that the related objects before and after are in an "or" relationship.

[0033] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0034] Cryogenic systems, such as liquid helium and liquid nitrogen cryogenic systems, contain numerous complex liquid or gas pipelines. During use, air often enters these pipelines, leading to ice blockages caused by nitrogen, oxygen, or carbon dioxide. Ice blockage can seriously disrupt the normal operation of the cryogenic system. To address this technical problem, the present invention provides a cryogenic system deicing device.

[0035] For ease of description, the following embodiments are described using the example of solving the ice blockage problem in a liquid helium cryogenic system. However, it should be noted that the scope of application of the present invention is not limited to liquid helium cryogenic systems, but can also be applied to other cryogenic systems such as liquid nitrogen cryogenic systems.

[0036] Figure 1 The system structure diagram of the low-temperature system deicing device provided by the embodiment of the present invention is illustrated.

[0037] Reference Figure 1The cryogenic system deicing device provided by the embodiment of the present invention includes a dredge pipe assembly 100, an ice removal assembly 200, and a gas supply assembly 300. The ice removal assembly 200 is located at one end of the dredge pipe assembly 100 and is used to heat the ice-blocking element in the ice-blocking portion of the cryogenic system to release the trapped gas. The gas supply assembly 300 is connected to the dredge pipe assembly 100 and is used to disperse the trapped gas or discharge it out of the cryogenic system.

[0038] In the above structure, an ice-removing assembly 200 is provided at the first end of the dredging pipe assembly 100, and then the ice-removing assembly 200 is transported to the ice blockage in the pipe of the cryogenic system by pushing the dredging pipe assembly 100. The ice-removing assembly 200 is heated to vaporize the elements of the ice blockage, thereby releasing the impurities in the ice blockage. The released impurities are then blown away or discharged from the cryogenic system through the gas supply assembly 300. During the entire process, there is no need to reheat the entire system, so the operation can be carried out while the entire system is operating normally. The deicing method of the present invention is short in time, low in cost, and easy to operate, greatly improving the efficiency of eliminating ice blockages in the cryogenic system.

[0039] It should be noted that during use, the dredging pipe assembly 100 needs to be inserted into the pipe of the cryogenic system. Since the heavy pipes of the cryogenic system may have curved parts, in order for the de-icing assembly 200 to accurately reach the ice-blocked part, the dredging pipe assembly 100 needs to bend during the insertion process. To this end, the material of the dredging pipe assembly 100 can be made of Nitinol alloy with superelasticity and shape memory properties. Nitinol alloy can enable the dredging pipe assembly 100 to deform when bending or twisting is required, and has good toughness. The gas supplied by the gas supply assembly 300 can be designed accordingly according to the object of the present invention. For example, when the present invention is used to de-ice a liquid helium cryogenic system, the gas it supplies is high-purity helium. When the present invention is used to de-ice a liquid nitrogen cryogenic system, the gas it supplies is high-purity nitrogen.

[0040] Specifically, the diameter of the dredge pipe assembly 100 should be designed based on the inner diameter of the cryogenic system pipeline, allowing it to move within the pipeline. The length of the dredge pipe assembly 100 is not specifically limited and can be extended indefinitely based on actual needs. The de-icing assembly 200 is fixedly mounted at one end of the dredge pipe assembly 100. During use, the end of the dredge pipe assembly 100 equipped with the de-icing assembly 200 is inserted into the exhaust port of the exhaust pipe in the cryogenic system, and then the de-icing assembly 200 is delivered to the ice blockage. The de-icing assembly 200 heats the ice blockage, vaporizing the ice blockage. This vaporization releases the impurities from the ice blockage. Since the gas supply assembly 300 is connected to the dredge pipe assembly 100, high-purity helium is injected through the gas supply assembly 300 to dissipate the impurities. Once the impurities are dissipated, the ice blockage is resolved.

[0041] Figure 2 The example of the dredge pipe assembly is Figure 1 Cross-sectional view in the AA direction.

[0042] Reference Figure 2 In some embodiments of the present invention, the dredge pipe assembly 100 includes a first tube body 110 and a second tube body 120. The first tube body 110 is sleeved outside the second tube body 120, and a flow channel is formed between the first tube body 110 and the second tube body 120. The gas supply assembly 300 is connected to the flow channel. The first end of the second tube body 120 extends outside the first tube body 110, and a gap is defined between the first end of the second tube body 120 and the second tube body 120. The flow channel is connected to the outside of the dredge pipe assembly 100 through the gap. The de-icing assembly 200 is disposed in the second tube body 120. The first end of the second tube body 120 specifically refers to the end of the second tube body 120 that extends into the interior of the cryogenic system pipeline.

[0043] It is understood that the outer diameter of the second tube body 120 is smaller than the inner diameter of the first tube body 110. Therefore, after the second tube body 120 is assembled inside the first tube body 110, a gap remains between the second tube body 120 and the first tube body 110. This gap, together with the inner wall of the first tube body 110 and the outer wall of the second tube body 120, forms the aforementioned flow channel.

[0044] Specifically, the first tube 110 and the second tube 120 are both made of a Nitinol alloy tube and are connected by a connector 130. Multiple connectors 130 are provided, spaced apart according to the cross-section of the first tube 110. One end of each connector 130 is connected to the second tube 120, and the other end is connected to the first tube 110. The provision of connectors 130 allows the first and second tubes 110, 120 to be constructed as a single unit, allowing movement of the first tube 110 while also moving the second tube 120. Because the first and second tubes 110, 120 are relatively long, connectors 130 can be provided at regular intervals between the first and second tubes 110, 120. By spacing the connectors 130, gas within the gas supply assembly 300 can be discharged.

[0045] It should be noted that the dredge pipe assembly 100, comprised of the first tube 110 and the second tube 120, is open at one end and sealed at the other. This ensures that, after entering the flow passage, the gas in the gas supply assembly 300 can only be ejected from the end of the dredge pipe assembly 100 that connects to the de-icing assembly 200, ensuring the airtightness of the flow passage.

[0046] In some possible embodiments, a micro-camera can be provided at the front end of the dredge tube assembly 100 that enters the pipeline. When the dredge tube assembly 100 is inserted into the pipeline, the image information captured by the micro-camera can be observed, thereby facilitating the staff to transport the de-icing assembly 200 to the location of the ice blockage. Furthermore, the information captured by the micro-camera can be used to understand the situation inside the pipeline and to preemptively clear areas where ice blockages may occur. To facilitate viewing of the information captured by the micro-camera, a micro-display can be provided externally. The micro-display is electrically connected to the micro-camera, and the staff can observe the information on the micro-display, enabling the dredge tube assembly 100 to more quickly and accurately transport the de-icing assembly 200 to the location of the ice blockage, greatly improving the staff's work efficiency.

[0047] Reference Figure 1 In some embodiments of the present invention, the ice-removing assembly 200 includes a heating element 210 and a temperature measuring element 220 , and the heating element 210 and the temperature measuring element 220 are sequentially disposed at the first end of the second tube 120 .

[0048] In the above structure, the heating element 210 is controlled to heat the ice blockage, causing the ice blockage to rise in temperature and vaporize, thereby eliminating the ice blockage. The temperature measuring element 220 is provided to detect the temperature of the ice blockage, allowing the operator to understand the temperature changes in the ice blockage, thereby facilitating subsequent cleaning of the impurities.

[0049] Specifically, the relative positioning of the heating element 210 and the temperature measuring element 220 is not specifically limited. A certain gap or insulation material is required between the two to prevent damage to the temperature measuring element 220 during heating by the heating element 210. The temperature measuring element 220 primarily detects the temperature of the ice blockage, allowing personnel to determine whether the ice blockage has reached a vaporization temperature. The heating element 210 and the temperature measuring element 220 do not need to be connected. Instead, a mounting bracket can be provided on the second tube 120, and the heating element 210 and the temperature measuring element 220 can be mounted on the mounting bracket at intervals.

[0050] The heating element 210 can specifically be a thermal resistor, a heating wire or a heating film, etc. Among them, the materials of the thermal resistor include platinum, nickel, copper, etc., and the temperature control is achieved by changing the resistance. The heating wire is made of metal or alloy, and heat is generated by passing an electric current through the heating wire. The temperature measuring element 220 can specifically be a thermocouple, an infrared sensor or a thermistor. Thermocouples can convert temperature into electrical signals. They are welded from two different metals. The temperature difference between the two contacts will cause the voltage to change, thereby achieving temperature measurement and control. Infrared sensors can measure temperature by measuring the infrared radiation emitted by the target object, and can be used for contactless temperature measurement. The resistance value of the thermistor changes with the change of temperature. The above three can all be used to measure the temperature of the ice blockage.

[0051] Reference Figure 1 In some embodiments of the present invention, the low-temperature system deicing device also includes a temperature controller 500, which is electrically connected to the temperature measuring element 220 via a first connecting line 510, and the temperature controller 500 is electrically connected to the heating element 210 via a second connecting line 520. The temperature controller 500 is used to control the operation of the heating element 210 and the temperature measuring element 220.

[0052] Since in actual use, the dredging pipe assembly 100 only needs to be inserted into the interior of the pipeline, while the temperature controller 500 works outside the pipeline. Therefore, it is necessary to reasonably arrange the first connecting line 510 and the second connecting line 520 so that the heating element 210 and the temperature measuring element 220 can always remain connected to the temperature controller 500 during the movement. Specifically, the first connecting line 510 and the second connecting line 520 can be passed through the end of the second tube body 120 located outside the pipeline, passed through the inside of the second tube body 120, and then connected to the heating element 210 and the temperature measuring element 220. The second tube body 120 can also provide certain protection for the first connecting line 510 and the second connecting line 520 to prevent damage to the first connecting line 510 and the second connecting line 520 during use.

[0053] When heating element 210 reaches the designated position, it is activated by temperature controller 500. Heating element 210 heats the ice blockage, vaporizing it. Simultaneously, temperature measuring element 220 monitors the ice blockage and transmits the data to the temperature display on temperature controller 500, which constantly displays the ice blockage temperature. Once the temperature reaches the boiling point of the ice blockage element, it is maintained constant for a period of time, and then heating element 210 is turned off.

[0054] Reference Figure 1 In some embodiments of the present invention, a backflow blocker 600 is further provided at the first end of the second tube body 120. The backflow blocker 600 is used to adjust the flow direction of the gas ejected from the gas supply assembly 300 so as to discharge the impurities out of the cryogenic system.

[0055] Specifically, the backflow baffle 600 is a truncated cone-shaped shell structure, that is, a trumpet-shaped structure. Its narrow end face is arranged on the temperature measuring element 220, or is mounted on the first end of the dredging pipe assembly 100 through a bracket, and its wide end face is arranged toward the dredging pipe assembly 100. Since, in actual use, the flow direction of the gas ejected from the gas supply assembly 300 is opposite to the outlet direction of the exhaust pipe, by setting the backflow baffle 600, the high-concentration helium gas inside the gas supply assembly 300 can be turned back toward the outlet of the exhaust pipe when it is ejected from the dredging pipe assembly 100, and then the impurities are discharged from the outlet of the pipe.

[0056] It should be noted that the backflow blocker 600 should be positioned to avoid interfering with the functioning of the heating element 210 and the temperature measuring element 220. The wide end of the backflow blocker 600 is larger than the cross-sectional area of ​​the first tube 110, allowing the gas ejected from the flow channel to act on the backflow blocker 600. Furthermore, the backflow blocker 600 should be made of a high-temperature resistant material to prevent damage to the backflow blocker 600 during heating by the heating element 210.

[0057] Reference Figure 1 In some embodiments of the present invention, the cryogenic system deicing device further includes a blocking assembly 400, which includes a quick-release component 410 and a gas outlet pipe 420; the gas outlet pipe 420 is connected to the quick-release component 410, and the gas outlet pipe 420 is provided with a gas guide valve group 430; the quick-release component 410 is connected to the cryogenic system, and the first tube body 110 and the second tube body 120 sequentially pass through the quick-release component 410 and the gas outlet pipe 420.

[0058] It should be noted that during use, the dredge tube assembly 100 needs to be inserted into the exhaust pipe of the cryogenic system, where gas is constantly being discharged. Therefore, when inserting the dredge tube assembly 100 into the exhaust pipe, it is moved against the wind direction. During use, the exhaust pipe needs to be sealed and the gas in the exhaust pipe needs to be diverted.

[0059] In the above structure, a quick-release part 410 is provided, which can specifically be a quick-release flange. The quick-release flange is compatible with the exhaust pipe in the cryogenic system, so that it can be quickly assembled and disassembled from the exhaust pipe. The gas outlet pipe 420 is connected to the quick-release part 410. When the quick-release part 410 is connected to the exhaust pipe, the gas outlet pipe 420 is also connected to the exhaust pipe, so that the gas in the exhaust pipe can be diverted and discharged through the gas outlet pipe 420. This ensures that the normal operation of the exhaust pipe will not be affected by the present invention during operation. One end of the gas outlet pipe 420 connected to the quick-release part 410 is provided with an opening connected to the exhaust pipe, while the other end is a sealed structure. In this way, the gas in the exhaust pipe can be discharged through the gas guide valve group 430.

[0060] Reference Figure 1 In some embodiments of the present invention, a sealing member 450 is provided at one end of the gas outlet pipe 420 away from the quick-release member 410, the first tube body 110 and the second tube body 120 pass through the sealing member 450, and the first tube body 110 and the sealing member 450 are movably and sealedly connected.

[0061] Since the dredge pipe assembly 100 needs to be continuously pumped during use, and the dredge pipe assembly 100 passes through the quick-release member 410 and the gas outlet pipe 420, it is necessary to provide a seal 450 at the outlet of the dredge pipe assembly 100 through the gas outlet pipe 420, that is, to provide a seal 450 at the end of the gas outlet pipe 420 facing away from the quick-release member 410. The seal 450 is sealedly connected to the dredge pipe assembly 100 and can also be pumped back and forth. This prevents gas in the exhaust pipe from leaking at the connection between the dredge pipe assembly 100 and the seal 450 during the process of pumping the dredge pipe assembly 100, thereby ensuring the airtightness of the gas outlet pipe 420 while not affecting the pumping of the dredge pipe assembly 100.

[0062] Reference Figure 1 In some embodiments of the present invention, the gas guide valve assembly 430 includes a safety valve 431 and a first shut-off valve 432, which are interconnected. The first shut-off valve 432 is connected to the gas outlet pipe 420. By providing the safety valve 431 and the first shut-off valve 432, the present invention can automatically release pressure when the pressure reaches a predetermined value without requiring operator intervention.

[0063] Reference Figure 1In some embodiments of the present invention, the gas supply assembly 300 includes a gas supply tank 310, which is connected to the flow channel via a gas delivery pipe 320. A second shut-off valve 440 is provided on the gas outlet pipe 420. One end of the second shut-off valve 440 is connected to the flow channel, and the other end is connected to the gas delivery pipe 320. By controlling the second shut-off valve 440, the discharge of gas from the gas supply tank 310 is controlled.

[0064] When the present invention is used in practice, the outlet of the exhaust pipe is first opened, and then the dredging pipe assembly 100 is inserted from the outlet of the exhaust pipe so that the de-icing assembly 200 reaches the ice blockage position. The second shut-off valve 440 is then activated, and the gas in the gas supply assembly 300 is discharged from the outlet on the dredging pipe assembly 100, and is returned to the outlet of the exhaust pipe under the action of the backflow blocker 600, thereby preliminarily discharging the foreign gas inside the pipe. Of course, after the foreign gas inside the pipe is discharged, the quick-release component 410 is connected to the exhaust pipe. When the quick-release component 410 is connected, during the de-icing process, the gas in the exhaust pipe can be discharged normally from the air guide valve assembly 430, thus avoiding the problem that the gas in the exhaust pipe cannot be discharged after the quick-release component 410 is connected. The ice blockage is then cleared. The ice blockage clearing process can refer to the above embodiment and will not be described in detail here.

[0065] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A low temperature system deicing device, characterized in that: include: A dredging pipe assembly (100); An ice removal assembly (200) is provided at one end of the dredging pipe assembly (100) and is used to heat ice blocking elements of an ice blocking portion in a low-temperature system to vaporize the ice blocking portion; The gas supply assembly (300) is in communication with the dredging pipe assembly (100) and is used to disperse or discharge the miscellaneous gas vaporized from the ice blockage into the cryogenic system.

2. The low-temperature system deicing device according to claim 1, characterized in that: The dredging pipe assembly (100) comprises a first pipe body (110) and a second pipe body (120); The first tube body (110) is sleeved on the outside of the second tube body (120), and a flow channel is formed between the first tube body (110) and the second tube body (120), and the gas supply component (300) is in communication with the flow channel; The first end of the second tube body (120) extends to the outside of the first tube body (110), and a gap is provided at the connection between the first end of the second tube body (120) and the end face of the first tube body (110), and the flow channel is connected to the outside of the clearing pipe assembly (100) through the gap.

3. The low-temperature system deicing device according to claim 2, characterized in that: The ice-removing assembly (200) comprises a heating element (210) and a temperature measuring element (220), and both the heating element (210) and the temperature measuring element (220) are arranged at the first end of the second tube (120).

4. The low-temperature system deicing device according to claim 3, characterized in that: The device further comprises a temperature controller (500), wherein the temperature controller (500) is electrically connected to the temperature measuring element (220) via a first connecting line (510), and the temperature controller (500) is electrically connected to the heating element (210) via a second connecting line (520). The temperature controller (500) is used to control the operation of the heating element (210) and the temperature measuring element (220).

5. The low-temperature system deicing device according to claim 3, characterized in that: The first end of the second tube (120) is further provided with a backflow baffle (600), and the backflow baffle (600) is used to adjust the flow direction of the gas ejected from the gas supply assembly (300) so as to allow the impurities to be discharged from the cryogenic system.

6. The low-temperature system deicing device according to claim 2, characterized in that: The invention also includes a blocking assembly (400), wherein the blocking assembly (400) includes a quick-release component (410) and a gas outlet pipe (420); the gas outlet pipe (420) is connected to the quick-release component (410), and the gas outlet pipe (420) is provided with a gas guide valve group (430); and the first tube body (110) sequentially passes through the quick-release component (410) and the gas outlet pipe (420).

7. The low-temperature system deicing device according to claim 6, characterized in that: A sealing member (450) is provided at one end of the gas outlet pipe (420) away from the quick-release member (410); the first tube body (110) passes through the sealing member (450); and the first tube body (110) and the sealing member (450) are movably and sealedly connected.

8. The low-temperature system deicing device according to claim 6, characterized in that: The gas guide valve assembly (430) comprises a safety valve (431) and a first stop valve (432) that are in communication with each other, and the first stop valve (432) is in communication with the gas outlet pipe (420).

9. The low-temperature system deicing device according to claim 6, characterized in that: The gas supply assembly (300) includes a gas supply tank (310), and the gas supply tank (310) is connected to the flow channel through a gas delivery pipe (320).

10. The low-temperature system deicing device according to claim 9, characterized in that: The gas outlet pipe (420) is provided with a second stop valve (440), one end of the second stop valve (440) is in communication with the flow channel, and the other end is in communication with the gas delivery pipe (320).

Images