Refrigerant pipeline cleaning machine

Abstract

The utility model provides a refrigerant pipeline cleaning machine, and relates to the technical field of cleaning machines. A refrigerant pipeline cleaning machine comprises a machine shell, a cleaning liquid circulating barrel, a cleaning pump and an electromagnetic reversing valve, the cleaning liquid circulating barrel, the cleaning pump and the electromagnetic reversing valve are arranged in the machine shell, the cleaning liquid circulating barrel is used for storing cleaning liquid, the bottom of the cleaning liquid circulating barrel is connected with liquid outlet pipes and a liquid return pipe, and the liquid outlet pipes comprise the first liquid outlet pipe and the second liquid outlet pipe; the first liquid outlet pipe and the second liquid outlet pipe are communicated with a liquid inlet and a liquid outlet of the cleaning pump respectively, the liquid outlet pipe and the liquid return pipe are connected with one side of the electromagnetic reversing valve, the other side of the electromagnetic reversing valve is connected with the first cleaning pipe and the second cleaning pipe, and the first cleaning pipe and the second cleaning pipe are used for being communicated with a refrigerant pipeline to be cleaned. The direct-current brushless pump is simple in structure, light in weight, convenient to carry, capable of achieving reversing cleaning, safer and more reliable in cleaning and long in service life, and the cleaning efficiency and the cleaning quality are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cleaning machines, in particular to a refrigerant pipeline cleaning machine. Background Art

[0002] The cost of replacing the outdoor unit of the central air conditioner after it is damaged is high. In order to save costs as much as possible, only the outdoor unit is replaced. Since the lubricant used in the Freon system is mineral lubricant, and the current environmentally friendly refrigerant uses synthetic lubricant, these two lubricants cannot be mixed, and the old system must be cleaned before it can be used normally, otherwise the new equipment will seriously affect its service life! Therefore, a cleaning machine for cleaning refrigerant pipes is urgently needed.

[0003] At present, there is no dedicated cleaning device for refrigerant pipes, and the cleaning work can only be done manually, that is, the cleaning liquid is manually poured into the refrigerant pipe, and then the cleaning liquid and impurities are blown out of the refrigeration equipment pipe with high-pressure nitrogen and discharged into the recovery barrel. This manual cleaning method is inefficient, the cleaning cleanliness is not high, and it is difficult to ensure the cleaning quality. In addition, due to the lack of protective measures, the cleaning liquid is easy to spray out from the refrigeration equipment pipe and easily spray onto the human body, causing damage, and the labor intensity is high and dangerous. Utility Model Content

[0004] The utility model aims at solving the technical problems that manual cleaning of refrigerant pipelines has low cleaning efficiency, low cleanliness and difficulty in ensuring cleaning quality. The utility model provides a refrigerant pipeline cleaning machine with simple structure, light weight, convenient carrying and reversible cleaning. The DC brushless pump cleaning is safer, more reliable and has a long service life, thereby improving the cleaning efficiency and cleaning quality.

[0005] To this end, the technical solution of the utility model is a refrigerant pipe cleaning machine, which includes a casing and a cleaning liquid circulation barrel, a cleaning pump and an electromagnetic reversing valve arranged inside the casing. The cleaning liquid circulation barrel is used to store cleaning liquid. The bottom of the cleaning liquid circulation barrel is connected with a liquid outlet pipe and a liquid return pipe. The liquid outlet pipe includes a first liquid outlet pipe and a second liquid outlet pipe. The first liquid outlet pipe and the second liquid outlet pipe are respectively connected to the liquid inlet and the liquid outlet of the cleaning pump. The liquid outlet pipe and the return pipe are connected to one side of the electromagnetic reversing valve, and the other side of the electromagnetic reversing valve is connected to the first cleaning pipe and the second cleaning pipe. The first cleaning pipe and the second cleaning pipe are used to connect the refrigerant pipe to be cleaned.

[0006] Furthermore, the electromagnetic reversing valve is a two-position four-way electromagnetic reversing valve. When the electromagnetic reversing valve is in a first working state, the liquid outlet pipe is connected to the first cleaning pipe, and the liquid return pipe is connected to the second cleaning pipe. When the electromagnetic reversing valve is in a second working state, the liquid outlet pipe is connected to the second cleaning pipe, and the liquid return pipe is connected to the first cleaning pipe.

[0007] Furthermore, a filter tank is provided inside the cleaning liquid circulation barrel.

[0008] Furthermore, the bottom surface of the filter tank is provided with filter holes, and the interior of the filter tank is filled with filter material.

[0009] Furthermore, the casing is made of stainless steel.

[0010] Furthermore, the pump body, impeller and electromagnetic reversing valve of the cleaning pump are made of anti-corrosion materials.

[0011] Furthermore, the cleaning pump is a brushless DC pump.

[0012] Furthermore, a universal wheel with a brake is provided at the bottom end of the housing.

[0013] Furthermore, handles for carrying are provided on both sides of the casing.

[0014] The beneficial effect of the utility model is that when the electromagnetic reversing valve is in the first working state, the liquid outlet pipe is connected to the first cleaning pipe, and the liquid return pipe is connected to the second cleaning pipe. When the electromagnetic reversing valve is in the second working state, the liquid outlet pipe is connected to the second cleaning pipe, and the liquid return pipe is connected to the first cleaning pipe. By switching the working state of the electromagnetic reversing valve, the cleaning liquid in the first cleaning pipe and the second cleaning pipe can be driven to flow forward or reversely. When the cleaning liquid can flow forward and reversely for alternating cleaning, the bubbles in the refrigerant pipe can be discharged, thereby improving the cleaning effect.

[0015] The casing of the cleaning machine is made of stainless steel to meet the requirements of structural strength and lightness. The cleaning pump is a DC brushless pump, which has the characteristics of safe, reliable cleaning and long life. Since the cleaning fluid is corrosive, the pump body, impeller and electromagnetic reversing valve of the cleaning pump are made of special anti-corrosion materials, which are not afraid of erosion by cleaning agents, and are highly reliable and more durable. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0017] Figure 2 yes Figure 1 The main view of

[0018] Figure 3 yes Figure 1 A top view of

[0019] Figure 4 It is a schematic diagram of the internal structure of the utility model;

[0020] Figure 5 yes Figure 4 The main view of

[0021] Figure 6 It is a structural diagram of the circulation pipeline.

[0022] Explanation of symbols in the figure:

[0023] 1. Casing; 101. Wheel; 102. Handle; 2. Cleaning liquid circulation barrel; 3. Filter tank; 4. Cleaning pump; 5. Solenoid reversing valve; 6. First liquid outlet pipe; 7. Second liquid outlet pipe; 8. First cleaning pipe; 9. Second cleaning pipe; 10. Liquid return pipe. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] like Figure 1-Figure 6 As shown, the utility model provides a refrigerant pipe cleaning machine, which includes a housing 1 and a cleaning liquid circulation barrel 2, a cleaning pump 4 and an electromagnetic reversing valve 5 arranged inside the housing 1. In order to facilitate carrying and moving, a universal wheel 101 is provided at the bottom of the housing 1. The universal wheel 101 is a universal wheel with a brake, and handles 102 for carrying are provided on both sides of the housing 1. The cleaning machine has a simple overall structure, light weight, is easy to carry and move, and is suitable for outdoor cleaning of refrigerant pipes.

[0026] The cleaning liquid circulation barrel 2 is used for storing cleaning liquid. The bottom of the cleaning liquid circulation barrel 2 is connected with a liquid outlet pipe and a liquid return pipe 10. The liquid outlet pipe includes a first liquid outlet pipe 6 and a second liquid outlet pipe 7. A cleaning pump 4 is provided on the liquid outlet pipe, that is, the first liquid outlet pipe 6 is connected to the liquid inlet of the cleaning pump 4, and the second liquid outlet pipe 7 is connected to the liquid outlet of the cleaning pump 4. The cleaning pump 4 provides driving force for the cleaning liquid.

[0027] The electromagnetic reversing valve 5 is a two-position four-way electromagnetic reversing valve, one side of the electromagnetic reversing valve 5 is connected to the liquid outlet pipe and the liquid return pipe 10, and the other side of the electromagnetic reversing valve 5 is connected to the first cleaning pipe 8 and the second cleaning pipe 9. The first cleaning pipe 8 and the second cleaning pipe 9 are used to connect the refrigerant pipe to be cleaned, and multiple refrigerant pipes can be connected in series.

[0028] When the electromagnetic reversing valve 5 is in the first working state, the liquid outlet pipe is connected to the first cleaning pipe 8, and the liquid return pipe 10 is connected to the second cleaning pipe 9. When the electromagnetic reversing valve 5 is in the second working state, the liquid outlet pipe is connected to the second cleaning pipe 9, and the liquid return pipe 10 is connected to the first cleaning pipe 8. By switching the working state of the electromagnetic reversing valve 5, the cleaning liquid in the first cleaning pipe 8 and the second cleaning pipe 9 can be driven to flow forward or reversely. The reason for this design is that when the cleaning liquid can only circulate in one direction, bubbles may exist in the refrigerant pipe, affecting the cleaning effect. When the cleaning liquid can flow forward and reversely for alternating cleaning, the bubbles in the refrigerant pipe can be discharged, thereby improving the cleaning effect.

[0029] In order to ensure the quality of cleaning, the cleaning liquid needs to be filtered. A filter tank 3 is provided inside the cleaning liquid circulation barrel 2. A filter hole is provided on the bottom of the filter tank 3. Filter material is installed inside the filter tank 3. An elbow is provided at the end of the return liquid pipe 10. The liquid outlet of the elbow is located above the filter tank 3. The refluxed cleaning liquid first flows back to the filter tank 3, and then flows into the cleaning liquid circulation barrel 2 after being filtered by the filter material in the filter tank 3.

[0030] The casing 1 of the cleaning machine is made of stainless steel to meet the requirements of structural strength and lightness. The cleaning pump 4 is a DC brushless pump, which has the characteristics of safe, reliable cleaning and long service life. Since the cleaning liquid is corrosive, the pump body, impeller and electromagnetic reversing valve 5 of the cleaning pump 4 are made of special anti-corrosion materials, which are not afraid of erosion by cleaning agents, have high reliability and are more durable.

[0031] However, the above is only a specific embodiment of the present invention, and should not be used to limit the scope of implementation of the present invention. Therefore, the replacement of equivalent components, or equivalent changes and modifications made according to the scope of protection of the patent of the present invention should still fall within the scope covered by the claims of the present invention.

Claims

1. A refrigerant pipe cleaning machine, characterized in that: It includes a casing and a cleaning liquid circulation barrel, a cleaning pump and an electromagnetic reversing valve arranged inside the casing. The cleaning liquid circulation barrel is used to store cleaning liquid. The bottom of the cleaning liquid circulation barrel is connected with a liquid outlet pipe and a liquid return pipe. The liquid outlet pipe includes a first liquid outlet pipe and a second liquid outlet pipe. The first liquid outlet pipe and the second liquid outlet pipe are respectively connected to the liquid inlet and the liquid outlet of the cleaning pump. The liquid outlet pipe and the liquid return pipe are connected to one side of the electromagnetic reversing valve, and the other side of the electromagnetic reversing valve is connected to the first cleaning pipe and the second cleaning pipe. The first cleaning pipe and the second cleaning pipe are used to connect the refrigerant pipeline to be cleaned.

2. A refrigerant pipe cleaning machine according to claim 1, characterized in that: The electromagnetic reversing valve is a two-position four-way electromagnetic reversing valve. When the electromagnetic reversing valve is in a first working state, the liquid outlet pipe is connected to the first cleaning pipe, and the liquid return pipe is connected to the second cleaning pipe; when the electromagnetic reversing valve is in a second working state, the liquid outlet pipe is connected to the second cleaning pipe, and the liquid return pipe is connected to the first cleaning pipe.

3. The refrigerant pipe cleaning machine according to claim 1, characterized in that: A filter tank is arranged inside the cleaning liquid circulation barrel.

4. A refrigerant pipe cleaning machine according to claim 3, characterized in that: The bottom surface of the filter tank is provided with filter holes, and the interior of the filter tank is filled with filter material.

5. The refrigerant pipe cleaning machine according to claim 1, characterized in that: The casing is made of stainless steel.

6. The refrigerant pipe cleaning machine according to claim 1, characterized in that: The pump body, impeller and electromagnetic reversing valve of the cleaning pump are made of anti-corrosion materials.

7. The refrigerant pipe cleaning machine according to claim 1, characterized in that: The cleaning pump is a brushless DC pump.

8. The refrigerant pipe cleaning machine according to claim 1, characterized in that: A universal wheel with a brake is arranged at the bottom end of the casing.

9. The refrigerant pipe cleaning machine according to claim 1, characterized in that: Handles for carrying are arranged on both sides of the casing.

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