Anti-clogging copper capillary tubes for refrigeration equipment

Abstract

This utility model relates to the field of copper capillary technology and discloses an anti-clogging copper capillary for refrigeration equipment. The capillary includes a copper capillary with a filter mechanism located in the middle of its outer wall, an anti-backflow mechanism at its right end, and an installation assembly at its right end. The filter mechanism includes an internally threaded copper tube. The left end of the inner wall of the internally threaded copper tube is fixedly connected to the middle of the outer wall of the capillary, and the right end is fixedly connected to a connecting pipe. A filter screen is fixedly connected to the middle of the inner wall of the connecting pipe. In this utility model, the internally threaded copper tube first relieves refrigerant pressure and protects the filter components. Then, the filter screen intercepts impurities. A conical groove and a collection box are then used to collect and prevent clogging, thus avoiding impurities from blocking the copper capillary. When the filter screen is clogged, a diverter pipe maintains a stable refrigerant flow, thereby preventing the copper capillary from becoming clogged.

Description

Technical Field

[0001] This utility model relates to the field of copper capillary technology, and in particular to anti-clogging copper capillary tubes for refrigeration equipment. Background Technology

[0002] In refrigerators and air conditioning equipment, copper capillary tubes are key components for achieving refrigerant throttling and pressure reduction. Their performance directly affects the energy efficiency, stability and service life of the refrigeration system. Copper capillary tubes have high thermal conductivity, which can quickly transfer the local heat generated during the refrigerant throttling process. They are also highly flexible, allowing them to be adapted to complex installation spaces inside equipment without special tools. Furthermore, they are corrosion resistant, which can withstand the refrigerant inside the refrigeration system.

[0003] The copper capillary tube receives high-pressure liquid refrigerant flowing from the condenser into its inlet. Due to the extremely small inner diameter of the capillary tube, the refrigerant velocity increases dramatically, creating turbulence. At this point, part of the refrigerant's static pressure is converted into dynamic pressure, and the static pressure drops significantly. When the refrigerant flows out of the capillary tube outlet, its pressure and temperature decrease simultaneously, becoming a low-pressure, low-temperature liquid refrigerant. It then enters the evaporator to absorb heat, completing the refrigeration cycle. However, once the copper capillary tube is manufactured, its inner diameter and length are fixed, making it impossible to adjust the throttling effect according to load changes. When deviating from the design operating conditions, the refrigeration efficiency will decrease, and the throttling effect can only be adjusted by replacing the copper capillary tube.

[0004] Existing technology adds an electronic expansion valve to the copper capillary tube, which can dynamically adjust the refrigerant flow according to the real-time load of the system, thereby regulating the throttling effect of the copper capillary tube. However, in actual use, impurities in the refrigerant can accumulate in the copper capillary tube due to its extremely small inner diameter, causing blockage and obstructing the flow of refrigerant. In severe cases, this can lead to refrigeration failure and greatly reduce the working efficiency of the refrigeration equipment. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides an anti-clogging copper capillary tube for refrigeration equipment, aiming to improve the problem of copper capillary clogging in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: an anti-clogging copper capillary tube for refrigeration equipment, comprising a copper capillary tube, a filter mechanism provided in the middle of the outer wall of the copper capillary tube, an anti-backflow mechanism provided at the right end of the copper capillary tube, and an installation component provided at the right end of the copper capillary tube. The filtration mechanism includes an internally threaded copper tube. The left end of the inner wall of the internally threaded copper tube is fixedly connected to the middle of the outer wall of the copper capillary tube. The right end of the internally threaded copper tube is fixedly connected to a connecting tube. A filter screen is fixedly connected to the middle of the inner wall of the connecting tube. A tapered groove is formed at the bottom end of the inner wall of the connecting tube. A collection box is slidably connected to the bottom end of the connecting tube. A flow tube is fixedly connected to the right end of the connecting tube. Multiple diversion tubes are connected to the top end of the connecting tube. The right ends of the multiple diversion tubes are all connected to the top end of the flow tube. A prompting component is provided at the rear end of the connecting tube. Sliding components are provided on the front and rear sides of the collection box.

[0007] As a further description of the above technical solution: The anti-backflow mechanism includes a housing, the left end of which is fixedly connected to the right end of the copper capillary tube. A fixing block is fixedly connected to the right end of the inner wall of the housing. A limiting post is fixedly connected to the inner wall of the fixing block. A moving post is slidably connected to the inner wall of the limiting post. A valve block is fixedly connected to the left end of the moving post. A spring is provided on the outer wall of the moving post. The left end of the spring is fixedly connected to the right side of the valve block, and the left end of the spring is fixedly connected to the left end of the limiting post.

[0008] As a further description of the above technical solution: The prompting component includes a detector, the outer wall of which is fixedly connected to the front right side of the inner wall of the connecting pipe, and a prompt light is fixedly connected to the front side of the detector.

[0009] As a further description of the above technical solution: The sliding assembly includes two sliders, which are fixedly connected to the front and rear sides of the collection box, respectively. The outer walls of the two sliders are slidably connected to guide rails, and the outer walls of the two guide rails are fixedly connected to the front and rear sides of the bottom of the inner wall of the connecting tube, respectively.

[0010] As a further description of the above technical solution: The mounting assembly includes an inner fixing sleeve, the inner wall of which is fixedly connected to the right end of the outer wall of the copper capillary tube, an outer fixing sleeve is slidably connected to the outer wall of the inner fixing sleeve, and a sealing ring is fixedly connected to the inner wall of the outer fixing sleeve.

[0011] As a further description of the above technical solution: A pressure-reducing tube is fixedly connected to the left end of the copper capillary, and an arc-shaped flow guide is fixedly connected to the bottom of the inner wall of the pressure-reducing tube. The right end of the arc-shaped flow guide is fixedly connected to the left end of the outer wall of the copper capillary.

[0012] As a further description of the above technical solution: An electronic expansion valve is fixedly connected to the right end of the outer wall of the copper capillary, and a sensor is fixedly connected to the left end of the inner wall of the copper capillary. The sensor is electrically connected to the electronic expansion valve.

[0013] As a further description of the above technical solution: The outer wall of the copper capillary is fixedly connected to the front end of the capillary, and a sealing block is fixedly connected to the left end of the copper capillary.

[0014] This utility model has the following beneficial effects: 1. In this utility model, the pressure of the refrigerant is first relieved by the internally threaded copper tube to protect the filter components. Then, impurities are intercepted by the filter screen. Afterwards, the conical groove and the collection box are used to collect the impurities and prevent blockage, thus avoiding the blockage of the copper capillary tube. When the filter screen is blocked, the refrigerant flow is kept stable by the diversion pipe, thereby preventing the copper capillary tube from being blocked.

[0015] 2. In this utility model, the fixed block on the inner wall of the outer shell provides support first, and the moving column is restricted from shifting by the limiting column. Then, when the pressure on the right side is greater than the spring return force, the valve block is pushed to move, causing the moving column to slide, thereby opening the flow channel. When the pressure on the right side is less than the spring return force, the spring relaxes and pushes the valve block to move to the left, thereby preventing backflow into the copper capillary tube. Attached Figure Description

[0016] Figure 1 This is a perspective view of the anti-clogging copper capillary tube for refrigeration equipment proposed in this utility model; Figure 2 This is a front view of the anti-clogging copper capillary tube for refrigeration equipment proposed in this utility model; Figure 3 This is a structural exploded view of the mounting assembly for the anti-clogging copper capillary tube used in the refrigeration equipment proposed in this utility model; Figure 4 This is a structural exploded view of the arc-shaped flow guide of the anti-clogging copper capillary tube for refrigeration equipment proposed in this utility model. Figure 5 This is a structural exploded view of the anti-backflow mechanism of the anti-clogging copper capillary tube for refrigeration equipment proposed in this utility model. Figure 6 This is a cross-sectional view of the connecting pipe of the anti-clogging copper capillary tube for refrigeration equipment proposed in this utility model; Figure 7 This is a schematic diagram of the sliding assembly of the anti-clogging copper capillary tube for refrigeration equipment proposed in this utility model.

[0017] Legend: 1. Copper capillary tube; 2. Filtration mechanism; 201. Internally threaded copper tube; 202. Connecting tube; 203. Filter screen; 204. Conical groove; 205. Collection box; 206. Diverter tube; 207. Flow tube; 208. Indicator component; 2081. Detector; 2082. Indicator light; 209. Sliding component; 2091. Slider; 2092. Guide rail; 3. Anti-backflow mechanism; 301. Housing; 302. Fixing block; 303. Limiting post; 304. Moving post; 305. Valve block; 306. Spring; 4. Mounting component; 401. Inner fixing sleeve; 402. Outer fixing sleeve; 403. Sealing ring II; 5. Pressure reducing tube; 6. Arc-shaped guide; 7. Electronic expansion valve; 8. Sensor; 9. Winding tape; 10. Sealing block. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Reference Figure 1 and Figure 6 An embodiment of this utility model provides: an anti-clogging copper capillary tube for refrigeration equipment, including a copper capillary tube 1, a filter mechanism 2 provided in the middle of the outer wall of the copper capillary tube 1 to prevent impurities from entering the copper capillary tube 1, an anti-backflow mechanism 3 provided at the right end of the copper capillary tube 1 to prevent refrigerant from flowing back into the copper capillary tube 1, and an installation component 4 provided at the right end of the copper capillary tube 1 to facilitate the connection of the copper capillary tube 1 to downstream machines; The filter mechanism 2 includes an internally threaded copper tube 201. The left end of the inner wall of the internally threaded copper tube 201 is fixedly connected to the middle of the outer wall of the copper capillary tube 1 to prevent excessive refrigerant pressure from entering the filter mechanism 2. The right end of the internally threaded copper tube 201 is fixedly connected to a connecting pipe 202, which is the core cavity of the filter mechanism 2. A filter screen 203 is fixedly connected to the middle of the inner wall of the connecting pipe 202 to prevent impurities from entering the copper capillary tube 1 with the refrigerant. A conical groove 204 is formed at the bottom of the inner wall of the connecting pipe 202, which works in conjunction with the filter screen 203 to prevent impurities from accumulating and clogging the filter screen 203. A collection box 205 is slidably connected to the bottom of the connecting pipe 202 to collect impurities that slide down from the conical groove 204. The right end of the connecting pipe 202 is fixedly connected to a flow pipe 207. The top end of the connecting pipe 202 is connected to multiple diversion pipes 206. When the filter screen 203 is blocked by impurities, the flow is diverted to maintain a stable refrigerant flow. The right ends of the multiple diversion pipes 206 are all connected to the top end of the flow pipe 207. The flow pipe 207 receives the refrigerant filtered by the filter screen 203 and the refrigerant transported by the diversion pipes 206, and smoothly transports it downstream to ensure a stable refrigerant flow. The rear end of the connecting pipe 202 is provided with a prompt component 208 to remind the user to clean the collection box 205 or replace the filter screen 203 in time. The front and rear sides of the collection box 205 are provided with sliding components 209 so that the collection box 205 can be easily pulled out or pushed in for convenient maintenance. Specifically, the internally threaded copper tube 201 enhances the sealing of the interface to prevent refrigerant leakage and reduces refrigerant pressure through the threads on the inner wall. Then, the filter screen 203 inside the connecting pipe 202 can accurately intercept impurities in the refrigerant to prevent blockage and its impact. The conical groove 204 guides the intercepted impurities to slide down, avoiding impurity accumulation, maintaining the flow efficiency of the filter screen 203, and extending the cleaning cycle of the filter screen 203. After that, the collection box 205 collects impurities, and then through the sliding component 209, the filter mechanism 2 does not need to be disassembled during cleaning, thereby shortening downtime for maintenance and reducing the impact on system operation. Then, the dual-channel design formed by the diversion pipe 206 and the main channel pipe can divert the flow when the filter screen 203 is blocked by impurities, thereby maintaining a stable refrigerant flow. The flow pipe 207 receives the refrigerant entering the downstream, and the prompting component 208 can accurately monitor the blockage of the filter screen 203 and issue timely warnings to avoid maintenance delays that may cause failures and improve maintenance efficiency.

[0020] Reference Figure 2 and Figure 5The anti-backflow mechanism 3 includes a housing 301, which serves as the frame of the entire anti-backflow mechanism 3. The left end of the housing 301 is fixedly connected to the right end of the copper capillary tube 1. A fixing block 302 is fixedly connected to the right end of the inner wall of the housing 301, serving as a support for the subsequent structure. A limit post 303 is fixedly connected to the inner wall of the fixing block 302 to limit the position of the subsequent structure and prevent it from shifting. A moving post 304 is slidably connected to the inner wall of the limit post 303. A valve block 305 is fixedly connected to the left end of the moving post 304, which is the execution end of the anti-backflow mechanism 3 and completely blocks the refrigerant backflow. A spring 306 is provided on the outer wall of the moving post 304. The left end of the spring 306 is fixedly connected to the right side of the valve block 305, and the left end of the spring 306 is fixedly connected to the left end of the limit post 303. Under normal conditions, it is in a slightly compressed state to ensure that when there is no positive refrigerant pressure, the valve block 305 can tightly fit the sealing surface to prevent reverse leakage. During forward flow, it avoids wear caused by frequent opening and closing of the valve block 305 due to sudden pressure changes. Specifically, the outer casing 301 serves as the frame of the anti-backflow mechanism 3, providing a stable installation and protection space for all internal components, ensuring the structural integrity of the entire mechanism under complex operating conditions. Then, the fixing block 302 stably fixes the limiting post 303, preventing it from shifting position under the impact of refrigerant flow. The limiting post 303 mainly restricts the direction of the moving post 304, preventing it from deviating from its preset trajectory during sliding and avoiding failure of the anti-backflow function. When refrigerant shows a backflow tendency, the moving post 304 can drive the valve block 3. The rapid response of the 05 mechanism ensures that the valve block 305 fits tightly against the sealing surface, completely blocking refrigerant backflow and protecting the normal operation of the system. The spring 306 is normally in a slightly compressed state. When there is no forward refrigerant pressure, it can provide continuous pressure to the valve block 305, ensuring that the valve block 305 fits tightly against the sealing surface and effectively preventing reverse leakage. During forward flow, it can buffer the impact of refrigerant pressure changes on the valve block 305, avoiding wear caused by frequent opening and closing of the valve block 305 due to sudden pressure changes, extending the service life of the valve block 305, and ensuring the long-term stable functioning of the anti-backflow mechanism 3.

[0021] Reference Figure 2 , Figure 3 and Figure 7The prompting component 208 includes a detector 2081. The outer wall of the detector 2081 is fixedly connected to the front right side of the inner wall of the connecting pipe 202. It is the sensing core of the prompting component 208. The detector 2081 detects blockages in real time and then actively issues a warning to prevent the blockage from worsening and causing cooling failure. An indicator light 2082 is fixedly connected to the front side of the detector 2081, which can quickly determine the status of the filter mechanism 2, reduce maintenance costs, and shorten troubleshooting time. The sliding component 209 includes two sliders 2091. The two sliders 2091 are fixedly connected to the front and rear sides of the collection box 205, respectively. The outer walls of the two sliders 2091 are slidably connected to guide rails 2092, which are responsible for limiting the movement direction of the sliders 2091 and preventing deviation. The outer walls of the two guide rails 2092 are fixedly connected to the front and rear sides of the bottom end of the inner wall of the connecting pipe 202, respectively. The mounting assembly 4 includes an inner fixing sleeve 401, the inner wall of which is fixedly connected to the right end of the outer wall of the copper capillary tube 1. An outer fixing sleeve 402 is slidably connected to the outer wall of the inner fixing sleeve 401. A sealing ring 403 is fixedly connected to the inner wall of the outer fixing sleeve 402. By compressing and deforming to fill the gap, fluid sealing is achieved to prevent leakage. Specifically, the flow rate value detected by detector 2081 is transmitted to indicator light 2082. If indicator light 2082 is green, there is no blockage; if indicator light 2082 is red, there is no blockage, preventing refrigerant from leaking from the detector 2081. Pull the collection box 205 to the right, and the collection box 205 will drive the sliders 2091 on the front and rear sides to slide along the inner wall of guide rail 2092, allowing the collection box 205 to easily detach from the bottom of connecting pipe 202. The inner fixing sleeve 401 provides a stable base support for the entire mounting assembly 4, allowing the outer fixing sleeve 402 to be adjusted in position along its axis, facilitating alignment with external connecting parts during installation. The sealing ring 403 ensures a sealing effect, preventing refrigerant leakage during flow.

[0022] Reference Figure 1 and Figure 4 A pressure-reducing tube 5 is fixedly connected to the left end of the copper capillary tube 1 to regulate the refrigerant pressure and prevent high pressure from impacting the inner wall of the copper capillary tube 1. An arc-shaped flow guide 6 is fixedly connected to the bottom of the inner wall of the pressure-reducing tube 5, and the right end of the arc-shaped flow guide 6 is fixedly connected to the left end of the outer wall of the copper capillary tube 1. The arc structure guides the flow direction and reduces resistance and turbulence. An electronic expansion valve 7 is fixedly connected to the right end of the outer wall of the copper capillary tube 1 to control the fluid flow rate of the copper capillary tube 1 to the downstream. A sensor 8 is fixedly connected to the left end of the inner wall of the copper capillary tube 1 to detect the fluid pressure and transmit the signal to the electronic expansion valve 7 to realize the automatic control of the system. The sensor 8 is electrically connected to the electronic expansion valve 7. A winding tape 9 is fixedly connected to the front end of the outer wall of the copper capillary tube 1 to reduce heat exchange between the copper capillary tube 1 and the outside environment. A sealing block 10 is fixedly connected to the left end of the copper capillary tube 1 to prevent dust from entering when the copper capillary tube 1 is not installed. Specifically, the pressure-reducing pipe 5 buffers and reduces the pressure of the incoming high-pressure refrigerant, preventing it from impacting the inner wall of the copper capillary tube 1 and causing damage due to prolonged exposure to excessive pressure. The arc-shaped guide 6 reduces local resistance and turbulence during refrigerant flow, lowering energy loss and ensuring stable flow. The sensor 8 transmits real-time pressure data to the electronic expansion valve 7, which then precisely controls the refrigerant flow rate through the copper capillary tube 1, ensuring stable refrigeration efficiency. The wrapping tape 9 reduces heat exchange between the refrigerant inside the copper capillary tube 1 and the external environment, preventing changes in the refrigerant's state due to heat absorption or release during flow. The sealing block 10 serves as a temporary seal during manufacturing or transportation, blocking the left end of the copper capillary tube 1 when it is not installed, preventing dust, impurities, and moisture from entering the tube.

[0023] Working principle: When the refrigerant in the refrigeration system is delivered to the filter mechanism 2 through the copper capillary tube 1, it first completes the transition connection through the internally threaded copper tube 201. At this time, the internally threaded copper tube 201 avoids excessive pressure from entering the connecting pipe 202 through the inner wall thread. After the refrigerant enters the connecting pipe 202, the filter screen 203 directly blocks the solid impurities mixed in the refrigerant, preventing the impurities from flowing into downstream equipment with the refrigerant, thereby avoiding blockage of the copper capillary tube 1. The impurities intercepted by the filter screen 203 slide into the conical groove 204 under the dual action of gravity and the scouring force of the refrigerant, and then fall into the collection box 205 below, realizing the complete separation of impurities from refrigerant, thereby preventing the accumulation of impurities. When the filter screen 203 is slightly blocked, the main channel flow will be reduced due to the blockage. The diversion pipe 206 replenishes the flow to prevent a sudden drop in the total refrigerant flow of the system and ensure stable cooling effect. Afterwards, the detector 2081 monitors the reduction in the main channel flow and triggers the indicator light 2082 to remind the staff to deal with it and prevent serious blockage of the copper capillary tube 1. When the high-pressure refrigerant transported by the copper capillary tube 1 flows to the anti-backflow mechanism 3, the refrigerant pressure acts on the left side of the valve block 305. When the pressure is greater than the return force of the spring 306 plus the downstream low pressure, the valve block 305 is pushed to the right, causing the moving column 304 to slide to the right along the limiting column 303. The spring 306 is compressed, and at this time the valve block 305 separates from the sealing surface of the inner wall of the outer shell 301. The moving column 304 moves along the inner wall of the limiting column 303, thereby opening the flow channel and allowing the refrigerant to flow smoothly through the outer shell 301 to the downstream. When the system stops, the upstream refrigerant pressure drops, and the downstream pressure rises relatively. Then, the downstream reverse pressure plus the return force of the spring 306 is greater than the upstream pressure, and the spring 306 relaxes, pushing the valve block 305 to the left, causing the moving column 304 to reset. The left side of the valve block 305 fits against the sealing surface of the inner wall of the outer shell 301, completely blocking the flow channel, thereby preventing the downstream refrigerant from flowing back into the copper capillary tube 1.

[0024] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An anti-clogging copper capillary tube for refrigeration equipment, comprising a copper capillary tube (1), characterized in that: A filter mechanism (2) is provided in the middle of the outer wall of the copper capillary (1), an anti-backflow mechanism (3) is provided at the right end of the copper capillary (1), and an installation component (4) is provided at the right end of the copper capillary (1). The filtering mechanism (2) includes an internally threaded copper tube (201). The left end of the inner wall of the internally threaded copper tube (201) is fixedly connected to the middle of the outer wall of the copper capillary tube (1). The right end of the internally threaded copper tube (201) is fixedly connected to a connecting tube (202). The middle of the inner wall of the connecting tube (202) is fixedly connected to a filter screen (203). A tapered groove (204) is opened at the bottom end of the inner wall of the connecting tube (202). A collection box (205) is slidably connected to the bottom end of the connecting tube (202). A flow tube (207) is fixedly connected to the right end of the connecting tube (202). A plurality of diversion tubes (206) are connected to the top end of the connecting tube (202). The right ends of the plurality of diversion tubes (206) are all connected to the top end of the flow tube (207). A prompting component (208) is provided at the rear end of the connecting tube (202). A sliding component (209) is provided on the front and rear sides of the collection box (205).

2. The anti-clogging copper capillary tube for refrigeration equipment according to claim 1, characterized in that: The anti-backflow mechanism (3) includes a housing (301), the left end of which is fixedly connected to the right end of the copper capillary tube (1), a fixing block (302) is fixedly connected to the right end of the inner wall of the housing (301), a limiting post (303) is fixedly connected to the inner wall of the fixing block (302), a moving post (304) is slidably connected to the inner wall of the limiting post (303), a valve block (305) is fixedly connected to the left end of the moving post (304), a spring (306) is provided on the outer wall of the moving post (304), the left end of the spring (306) is fixedly connected to the right side of the valve block (305), and the left end of the spring (306) is fixedly connected to the left end of the limiting post (303).

3. The anti-clogging copper capillary tube for refrigeration equipment according to claim 1, characterized in that: The prompting component (208) includes a detector (2081), the outer wall of which is fixedly connected to the front right side of the inner wall of the connecting pipe (202), and a prompting light (2082) is fixedly connected to the front side of the detector (2081).

4. The anti-clogging copper capillary tube for refrigeration equipment according to claim 1, characterized in that: The sliding assembly (209) includes two sliders (2091), which are fixedly connected to the front and rear sides of the collection box (205) respectively. The outer walls of the two sliders (2091) are slidably connected to guide rails (2092), and the outer walls of the two guide rails (2092) are fixedly connected to the front and rear sides of the bottom of the inner wall of the connecting tube (202) respectively.

5. The anti-clogging copper capillary tube for refrigeration equipment according to claim 1, characterized in that: The installation assembly (4) includes an inner fixing sleeve (401), the inner wall of which is fixedly connected to the right end of the outer wall of the copper capillary tube (1), and an outer fixing sleeve (402) is slidably connected to the outer wall of the inner fixing sleeve (401). A sealing ring (403) is fixedly connected to the inner wall of the outer fixing sleeve (402).

6. The anti-clogging copper capillary tube for refrigeration equipment according to claim 1, characterized in that: The left end of the copper capillary (1) is fixedly connected to a pressure reducing tube (5), the bottom of the inner wall of the pressure reducing tube (5) is fixedly connected to an arc-shaped guide (6), and the right end of the arc-shaped guide (6) is fixedly connected to the left end of the outer wall of the copper capillary (1).

7. The anti-clogging copper capillary tube for refrigeration equipment according to claim 1, characterized in that: An electronic expansion valve (7) is fixedly connected to the right end of the outer wall of the copper capillary (1), and a sensor (8) is fixedly connected to the left end of the inner wall of the copper capillary (1). The sensor (8) is electrically connected to the electronic expansion valve (7).

8. The anti-clogging copper capillary tube for refrigeration equipment according to claim 1, characterized in that: The outer wall of the copper capillary (1) is fixedly connected to the front end of the capillary (1) with a winding tape (9), and the left end of the copper capillary (1) is fixedly connected to a sealing block (10).

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