A semi-liquid full refrigeration device

Abstract

The application relates to the technical field of refrigeration equipment, in particular to a semi-full-liquid type refrigeration equipment, which comprises an evaporator body, an air outlet pipe arranged on the annular outer side surface of the evaporator body, a connecting pipe connected to the output end of the air outlet pipe, a drying filter arranged on the connecting pipe, a bypass part with one end connected to the air outlet pipe and the other end connected to the connecting pipe, and a main auxiliary assembly arranged at the connecting position of the air outlet pipe and the connecting pipe, wherein the main auxiliary assembly comprises a filter disc installed at the connecting position of the air outlet pipe and the connecting pipe. In the process of use, the filter disc is automatically cleaned when the refrigeration equipment stops working, thereby reducing the frequency of manual maintenance, improving the system reliability and efficiency, prolonging the service life of the compressor, avoiding the problem of sudden failure shutdown, and ensuring the continuity of the refrigeration equipment work.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of refrigeration equipment, in particular to a semi-full-liquid refrigeration equipment. BACKGROUND

[0002] The basic principle of semi-full-liquid refrigeration equipment is mainly based on the refrigeration cycle process, but it is different from the traditional full-liquid refrigeration system. The key feature is that the liquid refrigerant does not completely evaporate into gas in the evaporator, but retains a certain amount of liquid refrigerant. This liquid-gas mixed state can effectively improve the heat exchange efficiency and the stability of the system through reasonable design;

[0003] For the refrigeration equipment working in the transformer, high-low voltage switch cabinet and other electrical equipment, due to the transformer, high voltage switch cabinet and other electrical equipment will generate a lot of heat when working, especially under high load. If the heat cannot be dissipated in time, it will cause the temperature to be too high, affecting the efficiency of the transformer, and even causing overheating damage. Therefore, the heat dissipation system in the transformer, high voltage switch cabinet and other electrical equipment is a crucial part of the design, in order to avoid the heat damage of electrical equipment, therefore, it is necessary to quickly cool the inside of the box.

[0004] Among them, the common transformer cooling methods are oil immersion cooling: the transformer is immersed in oil, and the heat is taken away by the natural flow or mechanical pumping of the oil. The heat capacity and flowability of the oil can help dissipate heat. Air cooling: taking away the heat inside the transformer through fans or natural convection. Water cooling: taking away the heat through a water cooling system, usually used in high-power transformers.

[0005] And when the semi-full-liquid refrigeration equipment is applied in the transformer, the working principle of the semi-full-liquid refrigeration equipment is to optimize the heat exchange process by maintaining a certain proportion of liquid refrigerant and gaseous refrigerant mixture. In the heat dissipation system of the transformer, the semi-full-liquid refrigeration system can effectively improve the heat exchange efficiency, especially if the working environment temperature of the transformer is relatively high, the liquid-gas mixed refrigeration system may be able to better manage the heat, ensure that the temperature of the transformer remains within a suitable range; and the semi-full-liquid system can provide more stable temperature control effect, avoid temperature instability caused by incomplete evaporation of liquid or gas pressure fluctuation, which is particularly important for some precision equipment or high requirement transformers; at the same time, compared with the traditional full-liquid or air cooling system, the semi-full-liquid refrigeration system may be able to complete the heat dissipation task at lower energy consumption, especially in the case of large load fluctuation, the system can automatically adjust the refrigerant flow to avoid excessive energy consumption. It is worth noting that if the working environment of the transformer is humid or harsh, the liquid refrigeration system can avoid the situation of too high temperature of the transformer due to poor air cooling effect. Compared with the traditional air cooling method, the liquid cooling method has higher heat conduction efficiency and stronger adaptability.

[0006] And the semi-full liquid refrigeration equipment (Flooded evaporator system) mainly consists of the following several core components. These components work together to ensure that the system is efficient, safe and refrigeration:

[0007] Evaporator, expansion valve, liquid level control device, condenser, compressor, filter (filter or strainer) and suction line, etc.;

[0008] Among them, the filter (suction filter) is arranged between the evaporator and the compressor, which mainly functions to filter impurities in the gaseous refrigerant, prevent impurities from entering the compressor to cause wear or damage, and ensure the refrigeration effect of the refrigeration equipment. However, in the prior art, as the use time increases, the filter will be gradually clogged by impurities, resulting in a decrease in filtering efficiency. Once the filter is clogged, the airflow of the system will be restricted, which may cause excessive pressure drop, insufficient refrigerant flow, and even cause the compressor to work overload, thereby affecting the refrigeration performance. Although the prior art provides a bypass device that automatically opens when the filter is clogged and the pressure difference is too large to ensure uninterrupted operation of the system, it cannot fundamentally solve the problem of performance degradation of the filter, and thus cannot guarantee the sustainability of the refrigeration effect of the refrigeration equipment. SUMMARY

[0009] In view of the above shortcomings of the prior art, the present application provides a semi-full liquid refrigeration equipment, which can effectively solve the problem of low sustainability of the refrigeration effect of the refrigeration equipment in the prior art.

[0010] To achieve the above purpose, the present application is realized by the following technical scheme:

[0011] The application provides a semi-full liquid refrigeration device, which comprises an evaporator body, an air outlet pipe arranged on the annular outer side of the evaporator body, a connecting pipe connected to the output end of the air outlet pipe, a drying filter arranged on the connecting pipe, a bypass pipe with one end connected to the air outlet pipe and the other end connected to the connecting pipe, a main auxiliary assembly arranged at the connecting position of the air outlet pipe and the connecting pipe, wherein the main auxiliary assembly comprises a filter disc mounted at the connecting position of the air outlet pipe and the connecting pipe, a through slot formed on the annular inner side of the air outlet pipe and located away from the side of the connecting pipe, a suction pipe connected to the lower end of the through slot through an adjusting assembly, a ring-shaped cylinder connected to the middle part of the annular outer side of the evaporator body, a first cavity and a second cavity sequentially formed in the inside of the ring-shaped cylinder, wherein the first cavity and the second cavity are symmetrically arranged, a secondary movable ring slidably connected to the inside of the first cavity, a primary movable ring slidably connected to the inside of the second cavity, and the primary movable ring and the secondary movable ring are connected through a first connecting rod, a primary heat conduction block connected to the position of the second cavity corresponding to the left side of the primary movable ring, a cavity in the inside of the second cavity and located at the left side of the primary movable ring is filled with a heated and expanded gas, a gas delivery pipe penetratingly connected to the left inner side of the first cavity, and the end of the gas delivery pipe away from the first cavity extends to the position close to the connecting pipe and is connected to the connecting pipe, and a suction pipe penetratingly connected to the right inner side of the second cavity, and the end of the suction pipe away from the second cavity extends to the position close to the air outlet pipe and is connected to the air outlet pipe.

[0012] Further, the main auxiliary assembly further comprises a first one-way pipe connected to the left inner side of the first cavity, the gas delivery pipe and the first one-way pipe are symmetrically arranged, a second one-way pipe penetratingly connected to the right inner side of the second cavity, and the second one-way pipe and the suction pipe are symmetrically arranged.

[0013] Further, the annular side of the air outlet pipe is connected to a primary pressure relief valve at the position away from the bypass pipe, and the annular side of the connecting pipe is connected to a secondary pressure relief valve at the position away from the bypass pipe.

[0014] Further, the adjusting assembly comprises a mounting cylinder fixedly mounted on the annular outer side of the air outlet pipe close to the position of the suction pipe, the inner side of the mounting cylinder away from the suction pipe is elastically slidably connected to a ring-shaped movable plate through a first spring, the side of the ring-shaped movable plate away from the mounting cylinder is connected to uniformly distributed second connecting rods, the end of the second connecting rod away from the ring-shaped movable plate extends to the position close to the suction pipe through the mounting cylinder and is connected to a movable block, a connecting groove is formed in the inside of the movable block corresponding to the position of the through slot, the suction pipe is connected to the connecting groove, the annular inner side of the mounting cylinder is penetratingly connected to a communication pipe at the position corresponding to the first cavity, and the end of the communication pipe away from the mounting cylinder extends to the position close to the air outlet pipe and is connected to the air outlet pipe.

[0015] Further, the end of the communication pipe connected with the gas outlet pipe is located at the lower part of the main pressure relief valve, and the gas flow direction inside the gas outlet pipe is from the communication pipe to the main pressure relief valve.

[0016] Further, the slot width of the connecting slot is greater than the maximum slot width of the through slot, and the cross section of the two side surfaces of the through slot is V-shaped.

[0017] Further, the inside of the connecting pipe near the filter disc is provided with a secondary auxiliary assembly, the secondary auxiliary assembly comprises a connecting cylinder connected to the inner side surface of the connecting pipe near the filter disc through a mounting frame, the end surface of the connecting cylinder near the filter disc is rotationally connected with a rotating rod, one end of the rotating rod extends to the inside of the connecting cylinder and is threadedly connected with a pressing block, the pressing block and the connecting cylinder are elastically connected through a second spring, the other end of the rotating rod extends to a position near the through slot through the filter disc and is connected with uniformly distributed scrapers, and the end surface of the connecting cylinder away from the filter disc is provided with uniformly distributed through holes.

[0018] Further, the end surface of the pressing block near the through hole is connected with a sealing plate through a cylindrical rod, and the sealing plate is abuttingly connected with the through hole.

[0019] Further, the inner side surface of the connecting pipe is provided with an adjusting slot corresponding to the position of the connecting cylinder.

[0020] Further, the annular side surface of the gas conveying pipe near the connecting pipe is provided with a control assembly, the control assembly comprises a mounting shell mounted on the annular side surface of the gas conveying pipe near the connecting pipe, the inner side surface of the mounting shell is elastically and slidingly connected with a sealing block, the annular inner side surface of the gas conveying pipe is provided with a sealing slot corresponding to the position of the sealing block, the sealing block is slidingly connected with the sealing slot, and the inner wall of the connecting pipe is provided with a second heat conducting block corresponding to the position of the sealing block.

[0021] Compared with the known prior art, the technical scheme provided by the application has the following advantages:

[0022] 1. After the gas inside the gas delivery pipe enters the connecting pipe, it gradually compresses the impurities inside the filter holes on the suction pipe. By setting the amount of gas entering the connecting pipe to be greater than the amount of gas discharged through the filter holes on the suction pipe, as the amount of gas entering the connecting pipe gradually increases, the excess gas that cannot be discharged in time enters the clogged filter holes and compresses the impurities. The compressing force causes the impurities to move towards the through groove until all the impurities inside the clogged filter holes enter the gas outlet pipe, thus completing the cleaning work of the clogged filter holes on the through groove; furthermore, during the movement of the secondary moving ring, it will pass through the first connecting rod The second cavity moves to the left, allowing gas from the connecting pipe to enter through the suction pipe and draw air into it. This increases the pressure difference across the filter plate, further improving the cleaning effect on impurities inside the filter holes. This ensures the continuity and effectiveness of the refrigeration and cooling equipment, as well as the operation of electrical equipment such as transformers and high / low voltage switchgear. Furthermore, when the refrigeration equipment stops working, the filter plate is automatically cleaned, reducing the frequency of manual maintenance, improving system reliability and efficiency, extending compressor life, preventing sudden shutdowns, and ensuring the continuous operation of the refrigeration equipment.

[0023] 2. When gas enters the connecting pipe through the gas supply pipe, if a large number of filter holes on the filter plate are blocked, the squeezing force of the extrusion block will cause the rotating rod to rotate through the screw. During the rotation of the rotating rod, the scraper can scrape off the impurities that have been partially moved out of the filter holes on the filter plate, further improving the cleaning effect of the impurities inside the filter holes on the filter plate and ensuring the working effect of refrigeration. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0025] Figure 1 This is a complete structural diagram of the present invention;

[0026] Figure 2 This is a schematic diagram of the structure of the main and auxiliary components of the present invention;

[0027] Figure 3 This is a partial cross-sectional view of the main and auxiliary components of the present invention.

[0028] Figure 4 This is a schematic diagram of the structure of the annular cylinder of the present invention;

[0029] Figure 5Structure schematic view of the connecting place of the secondary movable ring and the primary movable ring of the application;

[0030] Figure 6 Structure schematic view of the adjusting assembly of the application;

[0031] Figure 7 Structure schematic view of the control assembly of the application;

[0032] Figure 8 Structure schematic view of the connecting cylinder of the application;

[0033] Figure 9 Structure schematic view of the connecting place of the extruding block and the rotating rod of the application.

[0034] The reference numbers in the figure respectively represent: 1, evaporator body; 2, air outlet pipe; 3, connecting pipe; 4, drying filter piece; 5, bypass piece; 6, primary auxiliary assembly; 61, filter disc; 62, annular cylinder; 63, first cavity; 64, secondary movable ring; 65, first connecting rod; 66, primary movable ring; 67, second cavity; 68, primary heat conducting block; 69, gas conveying pipe; 610, first one-way pipe; 611, second one-way pipe; 612, air suction pipe; 613, through slot; 614, primary pressure relief valve; 615, secondary pressure relief valve; 7, adjusting assembly; 71, communicating pipe; 72, mounting cylinder; 73, annular movable plate; 74, first spring; 75, movable block; 76, connecting slot; 77, second connecting rod; 8, control assembly; 81, mounting shell; 82, mounting slot; 83, sealing block; 84, sealing slot; 85, second heat conducting block; 9, secondary auxiliary assembly; 90, mounting frame; 91, connecting cylinder; 92, rotating rod; 93, scraper; 94, second spring; 95, extruding block; 96, sealing plate; 97, through hole; 98, adjusting slot. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical scheme and advantages of the embodiments of the application clearer, the technical scheme in the embodiments of the application will be described clearly and completely below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are some but not all of the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the application.

[0036] The application will be further described below with reference to the embodiments.

[0037] Embodiment: Refer to Figures 1 to 9The utility model provides a semi-full liquid refrigeration equipment, including evaporator body 1, the gas pipe 2 of setting up on the annular outer side of evaporator body 1, the connecting pipe 3 connected to the output end of gas pipe 2, the dry filter piece 4 of setting up on connecting pipe 3 and the bypass piece 5 with one end and gas pipe 2 are connected and the other end and connecting pipe 3 are connected, still include the main auxiliary assembly 6 of setting up in gas pipe 2 and connecting pipe 3 junction, and the main auxiliary assembly 6 includes the filter disc 61 of installing in gas pipe 2 and connecting pipe 3 junction, the annular inner side of gas pipe 2 is close to the side position of filter disc 61 far from connecting pipe 3 and is connected with suction pipe 612 through adjusting assembly 7 in the lower end of through slot 613, the annular outer side middle part of evaporator body 1 is connected with annular cylinder 62, and the inside of annular cylinder 62 is sequentially provided with first cavity 63, second cavity 67, first cavity 63 is symmetrically arranged with second cavity 67, and the inside of first cavity 63 is slidably connected with secondary movable ring 64, and the inside of second cavity 67 is slidably connected with main movable ring 66, and main movable ring 66 is connected with secondary movable ring 64 through first connecting rod 65, and the position of second cavity 67 is connected with main heat block 68 in the left side of main movable ring 66 and is close to the annular inner side of evaporator body 1, and the cavity inside of second cavity 67 is located in the left side of main movable ring 66 and is equipped with the gas of thermal expansion, and the left side inner side of first cavity 63 is connected with gas pipe 69, and the end of gas pipe 69 far from first cavity 63 extends to the position close to connecting pipe 3 and is connected with it, the right side inner side of second cavity 67 is connected with suction pipe 612, and the end of suction pipe 612 far from second cavity 67 extends to the position close to gas pipe 2 and is connected with it.

[0038] When the temperature of electrical equipment such as transformer, high-low voltage switch cabinet rises during operation and needs to be cooled, the compressor of the refrigeration system is responsible for sucking in and compressing low-pressure and low-temperature gas refrigerant into high-pressure and high-temperature gas. At this time, the pressure and temperature of the gas refrigerant are increased, preparing for the subsequent condensation process. The high-temperature and high-pressure gas refrigerant enters the condenser, and the condenser releases the heat of the refrigerant to the external environment. The refrigerant will condense in the condenser and change from gas to liquid. The condensation process usually accelerates the heat dissipation by flowing the refrigerant gas through the heat dissipation pipeline, so that the temperature and pressure of the refrigerant decrease and change into high-pressure liquid. The high-pressure liquid refrigerant after condensation passes through the expansion valve for throttling, and the pressure drops significantly, and the temperature of the refrigerant also drops. At this time, the refrigerant enters the evaporator and is in a low-temperature and low-pressure state; the low-pressure and low-temperature liquid refrigerant enters the evaporator and starts to absorb the heat of the surrounding environment or the refrigeration space. Part of the liquid refrigerant evaporates into gas, and the remaining liquid refrigerant and gaseous refrigerant form a two-phase flow. In this state, the evaporator is not completely gaseous refrigerant, nor is it completely liquid refrigerant, but a mixture of liquid and gas. In the evaporator, part of the low-pressure liquid refrigerant evaporates into gas and absorbs a large amount of latent heat. The remaining liquid refrigerant continues to flow forward through the pipeline of the evaporator and gradually evaporates in the process of contacting with the gaseous refrigerant; after the evaporator absorbs heat, the gaseous refrigerant returns to the compressor to enter the next cycle. The evaporated gaseous refrigerant will flow to the compressor along the return gas pipeline, ready to be compressed and recycled again.

[0039] The main auxiliary assembly 6 further comprises a first one-way pipe 610 connected to the left inner side surface of the first cavity 63, and the gas supply pipe 69 is symmetrically arranged with the first one-way pipe 610; the right inner side surface of the second cavity 67 is connected through a second one-way pipe 611, and the second one-way pipe 611 is symmetrically arranged with the gas suction pipe 612.

[0040] It is worth noting that when the gaseous refrigerant passes through the connecting pipe 3 and the drying filter 4 back into the compressor, the filter disc 61 filters the impurities in the gaseous refrigerant, preventing the impurities from entering the compressor and causing wear or damage; it is worth noting that when the gaseous refrigerant with temperature flows inside the evaporator body 1, the main heat guide block 68 transfers heat from the gaseous refrigerant to the cavity between the main movable ring 66 and the second cavity 67, and the heat-absorbing and easily expanding gas in the cavity expands after being heated; it is worth noting that the heat-absorbing and easily expanding gas can be carbon dioxide, air, etc.; further, when the gas in the cavity between the main movable ring 66 and the second cavity 67 expands after being heated, the main movable ring 66 is pressed, and since the secondary movable ring 64 is elastically connected with the annular cylinder 62 through the elastic element, the extrusion force makes the main movable ring 66 drive the secondary movable ring 64 to move to the right by overcoming the elastic force between the secondary movable ring 64 and the annular cylinder 62, and in the process of moving the main movable ring 66, the gas in the second cavity 67 is extruded, and the extrusion force makes the gas in the second cavity 67 discharge through the second one-way pipe 611; the second one-way pipe 611 and the first one-way pipe 610 are both composed of a pipe and a one-way valve, and in the process of moving the secondary movable ring 64 to the right, under the action of the internal pressure difference, the gas outside enters the inside of the first cavity 63 through the first one-way pipe 610, thereby supplementing the gas in the first cavity 63.

[0041] Further, when the refrigeration equipment stops working, the inside of the evaporator body 1 no longer produces gas flow, that is, the gaseous refrigerant no longer transfers heat to the heat-absorbing and easily expanding gas, and the heat-absorbing and easily expanding gas cools, and the gas expansion extrusion force on the main movable ring 66 gradually decreases, and under the action of the elastic force of the elastic element between the secondary movable ring 64 and the annular cylinder 62, the secondary movable ring 64 extrudes the gas in the annular cylinder 62, and the extrusion force makes the gas in the annular cylinder 62 enter the inside of the connecting pipe 3 through the gas conveying pipe 69.

[0042] It is worth noting that the annular side of the outlet pipe 2 is connected with the main pressure relief valve 614 at a position away from the bypass element 5, and the annular side of the connecting pipe 3 is connected with the secondary pressure relief valve 615 at a position away from the bypass element 5, and when the refrigeration equipment is working, as the amount and pressure of the gas increase, the gas gradually opens the main pressure relief valve 614 and the secondary pressure relief valve 615, thereby performing gas flow work; this is a conventional technical means in the prior art and will not be described here.

[0043] Further, when the refrigeration device stops working, the gas pressure disappears, the main pressure relief valve 614 and the secondary pressure relief valve 615 are in the closed state, and the gas in the gas conveying pipe 69 enters the inside of the connecting pipe 3 and gradually extrudes the impurities in the filter hole of the suction pipe 612. By setting the amount of gas entering the inside of the connecting pipe 3 to be greater than the amount of gas discharged from the inside of the connecting pipe 3 through the filter hole of the suction pipe 612, as the amount of gas entering the inside of the connecting pipe 3 gradually increases, the excess gas that cannot be discharged in time enters the inside of the blocked filter hole to extrude the impurities, the extrusion force makes the impurities move towards the direction close to the through groove 613, and until the impurities in the blocked filter hole enter the gas outlet pipe 2, that is, the cleaning work of the blocked filter hole on the through groove 613 is completed.

[0044] Further, in the process of moving the secondary movable ring 64, the first connecting rod 65 drives the second cavity 67 to move to the left, the gas in the connecting pipe 3 enters the inside of the second cavity 67 through the suction pipe 612 to perform the gas extraction work, further increases the pressure difference between the two sides of the filter disc 61, and further improves the cleaning effect of the impurities in the filter hole of the filter disc 61, thereby ensuring the sustainability and working effect of the refrigeration cooling device, and ensuring the working effect of the electrical equipment such as transformer, high-low voltage switch cabinet.

[0045] It is worth noting that in the process of gas entering the second cavity 67 through the through groove 613 and the suction pipe 612, in the process of gas flow, the impurities enter the inside of the second cavity 67 through the suction pipe 612, which ensures that the cleaned impurities will not affect the filter disc 61, thereby automatically cleaning the filter disc 61 when the refrigeration device stops working, thereby reducing the frequency of manual maintenance, improving system reliability and efficiency, prolonging the service life of the compressor, avoiding sudden failure and shutdown problems, and ensuring the sustainability of the refrigeration device.

[0046] It is worth noting that when the refrigeration device works next time, the main movable ring 66 extrudes the gas with impurities, the extrusion force makes the gas with impurities discharge through the suction pipe 612, and ensures the recyclability of the device.

[0047] The adjusting assembly 7 comprises a mounting cylinder 72 fixedly mounted on the annular outer side of the air outlet pipe 2 close to the air inlet pipe 612, and the inner side of the mounting cylinder 72 away from the air inlet pipe 612 is elastically and slidably connected with an annular movable plate 73 through a first spring 74, the side of the annular movable plate 73 away from the mounting cylinder 72 is connected with uniformly distributed second connecting rods 77, one end of the second connecting rod 77 away from the annular movable plate 73 extends through the mounting cylinder 72 to a position close to the air inlet pipe 612 and is connected with a movable block 75, the inside of the movable block 75 is provided with a connecting groove 76 corresponding to the position of the through groove 613, the air inlet pipe 612 is connected with the connecting groove 76 in communication, and the annular inner side of the mounting cylinder 72 is provided with a communication pipe 71 penetrating and connecting corresponding to the position of the first cavity 63, one end of the communication pipe 71 away from the mounting cylinder 72 extends to a position close to the air outlet pipe 2 and is connected with the air outlet pipe 2 in communication.

[0048] Further, by controlling the elastic force of the first spring 74, it is ensured that the gas extrusion force causing the elastic deformation of the first spring 74 is smaller than the extrusion force required by the threshold value of the main pressure relief valve 614, and the size of the elastic force of the first spring 74 can be controlled by the size and material thereof, which is a conventional technical means in the prior art and will not be described here; the end of the communication pipe 71 connected with the air outlet pipe 2 is located in the lower part of the main pressure relief valve 614, and the gas flowing direction in the air outlet pipe 2 is from the communication pipe 71 to the main pressure relief valve 614, so that the gas entering the inside of the air outlet pipe 2 will first pass through the communication pipe 71 to enter the inside of the mounting cylinder 72 to extrude the annular movable plate 73, the extrusion force makes the annular movable plate 73 drive the second connecting rod 77 and the movable block 75 to move away from the through groove 613 against the elastic force of the first spring 74, until the through groove 613 and the air inlet pipe 612 are in a staggered state, at this time when the gas enters the position close to the through groove 613 through the main pressure relief valve 614, the through groove 613 is sealed by the inner wall of the movable block 75, which ensures that the gas will not be discharged through the through groove 613 when the refrigeration equipment is working, and ensures the flow effect of the gaseous refrigerant; it is worth noting that when the refrigeration equipment is not working, the extrusion force of the gas on the annular movable plate 73 disappears, and under the elastic force of the mounting cylinder 72 recovering from the elastic deformation, the annular movable plate 73 drives the movable block 75 and the connecting groove 76 to move towards the filter disc 61, the connecting groove 76 and the through groove 613 are in communication, which ensures the effect of subsequent work.

[0049] The annular side of the gas conveying pipe 69 close to the connecting pipe 3 is provided with a control assembly 8, the control assembly 8 comprises a mounting shell 81 mounted on the annular side of the gas conveying pipe 69 close to the connecting pipe 3, and the inner side of the mounting shell 81 is elastically and slidably connected with a sealing block 83, the annular inner side of the gas conveying pipe 69 is provided with a sealing groove 84 corresponding to the position of the sealing block 83, the sealing block 83 is slidably connected with the sealing groove 84, and the inner wall of the connecting pipe 3 is provided with a second heat conducting block 85 corresponding to the position of the sealing block 83.

[0050] Further, during the operation of the refrigeration device, the gaseous refrigerant with temperature transfers heat to the gas in the cavity between the sealing block 83 and the second heat-conducting block 85 through heat transfer, at this time, under the action of the expansion force of the gas, the sealing block 83 overcomes the elastic force between the sealing block 83 and the second heat-conducting block 85 and moves to the direction close to the sealing groove 84 until the sealing block 83 abuts against the sealing groove 84, and then, during the operation of the refrigeration device, the connection between the gas conveying pipe 69 and the connection pipe 3 is in a closed state, so as to avoid the turbulent flow of the gaseous refrigerant at the gas conveying pipe 69 during the flow of the gaseous refrigerant, and thus the stability of the gaseous refrigerant during the flow is ensured.

[0051] The inner side of the connection pipe 3 close to the filter disc 61 is provided with a secondary auxiliary assembly 9, the secondary auxiliary assembly 9 comprises a connecting cylinder 91 connected to the inner side of the connection pipe 3 close to the filter disc 61 through a mounting frame 90, a rotating rod 92 rotatably connected to the end face of the connecting cylinder 91 close to the filter disc 61, one end of the rotating rod 92 extending into the interior of the connecting cylinder 91 and being threadedly connected with an extrusion block 95, the extrusion block 95 being elastically connected with the connecting cylinder 91 through a second spring 94, the other end of the rotating rod 92 extending through the filter disc 61 to a position close to the through groove 613 and being connected with uniformly distributed scrapers 93, and the end face of the connecting cylinder 91 away from the filter disc 61 is provided with uniformly distributed through holes 97.

[0052] It is worth noting that when the gas enters into the interior of the connection pipe 3 through the gas conveying pipe 69, if the number of the blocked filter holes on the filter disc 61 is large, that is, the gas entering into the interior of the connection pipe 3 cannot normally flow through the filter holes, and with the increase of the amount of the gas entering into the interior of the connection pipe 3, the gas pressure in the interior of the connection pipe 3 increases, it is worth noting that the maximum value of the increase of the gas pressure can be controlled to be less than the threshold value of the secondary pressure relief valve 615 by controlling the volume of the first cavity 63 and the threshold value of the secondary pressure relief valve 615, which is a conventional technical means in the prior art and thus is not described here, and then with the gradual increase of the amount of the gas in the interior of the connection pipe 3, the gas enters into the interior of the connecting cylinder 91 through the through holes 97 to extrude the extrusion block 95, the extrusion block 95 overcomes the thread engagement force between the extrusion block 95 and the rotating rod 92 and the elastic force of the second spring 94 and moves on the surface of the rotating rod 92, since the gap of the thread groove at the thread connection between the extrusion block 95 and the rotating rod 92 is large, which is used to convert the extrusion force into a rotating force, which is a common means in the prior art and thus is not described here, therefore when the extrusion block 95 moves on the side surface of the rotating rod 92, the extrusion force of the extrusion block 95 rotates the rotating rod 92 through the thread, and in the process of the rotation of the rotating rod 92, the scrapers 93 can scrape the impurities that have partially moved out of the filter holes on the filter disc 61, further improving the cleaning effect of the impurities in the filter holes on the filter disc 61 and ensuring the working effect of the refrigeration.

[0053] Referring to Figure 6The slot width of the connecting slot 76 is greater than the maximum slot width of the through slot 613, and the cross section of the two side surfaces of the through slot 613 is V-shaped, so that the impurities cleaned out of the filter disc 61 can better enter the inside of the connecting slot 76.

[0054] With reference to Figure 9 The end surface of the extrusion block 95 close to the through hole 97 is connected with a sealing plate 96 through a cylindrical rod, and the sealing plate 96 is in abutting connection with the through hole 97, so as to avoid the turbulent flow phenomenon of the gaseous refrigerant between the extrusion block 95 and the through hole 97, and further ensure the stability of the gaseous refrigerant in the flowing process.

[0055] With reference to Figure 6 The inner surface of the connecting pipe 3 is provided with an adjusting slot 98 at the position corresponding to the connecting cylinder 91, so as to provide additional flowing space for the position where the connecting cylinder 91 is installed, and ensure the flowing effect of the gaseous refrigerant in the flowing process.

[0056] The above embodiments are only used to illustrate the technical solutions of the present application, and are not limited thereto; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can still be modified, or some technical features can be replaced equivalently; and these modifications or replacements will not make the essence of the corresponding technical solutions deviate from the protection scope of the technical solutions of the embodiments of the present application.

Claims

1. A semi-liquid refrigeration device, comprising an evaporator body (1), an air outlet pipe (2) arranged on the annular outer side of the evaporator body (1), a connecting pipe (3) connected to the output end of the air outlet pipe (2), and a bypass member (5) having one end connected to the air outlet pipe (2) and the other end connected to the connecting pipe (3), characterized in that, Also includes: The main auxiliary assembly (6) is arranged at the connecting position of the air outlet pipe (2) and the connecting pipe (3), the main auxiliary assembly (6) includes a filter disc (61) arranged at the connecting position of the air outlet pipe (2) and the connecting pipe (3), the annular inner side of the air outlet pipe (2) is close to the side position of the filter disc (61) away from the connecting pipe (3), the lower end of the through groove (613) is connected with the air suction pipe (612) through the adjusting assembly (7), the annular outer side of the evaporator body (1) is connected with an annular cylinder (62), the inside of the annular cylinder (62) is sequentially provided with a first cavity (63) and a second cavity (67), the inside of the first cavity (63) is slidably connected with a secondary movable ring (64), the inside of the second cavity (67) is slidably connected with a primary movable ring (66), the primary movable ring (66) and the secondary movable ring (64) are connected through a first connecting rod (65), the second cavity (67) is connected with a primary heat conducting block (68) at a position corresponding to the left side of the primary movable ring (66) on the annular inner side of the evaporator body (1), the inside of the cavity on the left side of the primary movable ring (66) in the second cavity (67) is filled with a heated and expanded gas, the left inner side of the first cavity (63) is penetratively connected with a gas conveying pipe (69); the right inner side of the second cavity (67) is penetratively connected with the air suction pipe (612); The annular side of the air outlet pipe (2) is connected with a primary pressure relief valve (614) at a position away from the bypass (5), the annular side of the connecting pipe (3) is connected with a secondary pressure relief valve (615) at a position away from the bypass (5); The adjusting assembly (7) includes a mounting cylinder (72) fixedly mounted on the annular outer side of the air outlet pipe (2) close to the air suction pipe (612), the inner side of the mounting cylinder (72) away from the air suction pipe (612) is elastically slidably connected with an annular movable plate (73) through a first spring (74), the side of the annular movable plate (73) away from the mounting cylinder (72) is connected with uniformly distributed second connecting rods (77), one end of the second connecting rod (77) away from the annular movable plate (73) penetrates the mounting cylinder (72) and extends to a position close to the air suction pipe (612) and is connected with a movable block (75), the inside of the movable block (75) is provided with a connecting groove (76) at a position corresponding to the through groove (613), the air suction pipe (612) is in communication with the connecting groove (76), the annular inner side of the mounting cylinder (72) is penetratively connected with a communication pipe (71) at a position corresponding to the first cavity (63), one end of the communication pipe (71) away from the mounting cylinder (72) extends to a position close to the air outlet pipe (2) and is in communication with the air outlet pipe (2).

2. A semi-hermetic refrigeration apparatus according to claim 1, characterized in that, The main auxiliary assembly (6) further comprises a first one-way pipe (610) connected to the left inner side of the first cavity (63), the gas delivery pipe (69) is symmetrically arranged with the first one-way pipe (610), the right inner side of the second cavity (67) is throughly connected with a second one-way pipe (611), and the second one-way pipe (611) is symmetrically arranged with the air suction pipe (612).

3. A semi-hermetic refrigeration apparatus according to claim 1, characterized in that, The end of the communication pipe (71) connected with the air outlet pipe (2) is located at the lower part of the main pressure relief valve (614), and the gas flow direction inside the air outlet pipe (2) is from the communication pipe (71) to the main pressure relief valve (614).

4. A semi-hermetic refrigeration apparatus according to claim 3, characterized in that, The slot width of the connecting slot (76) is greater than the maximum slot width of the through slot (613), and the cross section of the two side surfaces of the through slot (613) is V-shaped.

5. A semi-hermetic refrigeration apparatus according to claim 1, characterized in that, The inner side of the connecting pipe (3) near the filter disc (61) is provided with a secondary auxiliary assembly (9), the secondary auxiliary assembly (9) comprises a connecting cylinder (91) connected to the inner side of the connecting pipe (3) near the filter disc (61) through a mounting frame (90), the end face of the connecting cylinder (91) near the filter disc (61) is rotationally connected with a rotating rod (92), one end of the rotating rod (92) extends into the connecting cylinder (91) and is threadedly connected with an extrusion block (95), the extrusion block (95) and the connecting cylinder (91) are elastically connected through a second spring (94), the other end of the rotating rod (92) extends to a position near the through slot (613) through the filter disc (61) and is connected with uniformly distributed scraper plates (93), and the end face of the connecting cylinder (91) away from the filter disc (61) is throughly provided with uniformly distributed through holes (97).

6. A semi-hermetic refrigeration apparatus according to claim 5, characterized in that, The end face of the extrusion block (95) near the through hole (97) is connected with a sealing plate (96) through a cylindrical rod, and the sealing plate (96) is in abutting connection with the through hole (97).

7. A semi-hermetic refrigeration apparatus according to claim 6, characterized in that, The inner side of the connecting pipe (3) is provided with an adjusting slot (98) corresponding to the position of the connecting cylinder (91).

8. A semi-hermetic refrigeration apparatus according to claim 1, characterized in that, The annular side of the gas delivery pipe (69) near the connecting pipe (3) is provided with a control assembly (8), the control assembly (8) comprises a mounting shell (81) mounted on the annular side of the gas delivery pipe (69) near the connecting pipe (3), the inner side of the mounting shell (81) is elastically and slidably connected with a sealing block (83), the annular inner side of the gas delivery pipe (69) is provided with a sealing groove (84) corresponding to the position of the sealing block (83), the sealing block (83) is in sliding connection with the sealing groove (84), and the inner wall of the connecting pipe (3) is provided with a second heat conducting block (85) corresponding to the position of the sealing block (83).

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