Blockage detection machine for capillary tube of air conditioner

Abstract

The utility model belongs to the technical field of air-conditioning capillary tubes, particularly relates to a blockage checking machine for air-conditioning capillary tubes, and aims to solve the problems of long maintenance time and high replacement cost in the background technology, and provides the following scheme: the blockage checking machine comprises a first condenser tube and a second condenser tube, the outer wall of one side of the first condensation pipe and the outer wall of one side of the second condensation pipe are both connected with first signal lines, and a differential pressure sensor is connected between the two first signal lines. The pressure difference sensor can monitor the pressure difference between the two pipelines, when the pressure difference between the two pipelines goes wrong, the alarm can give an alarm, the blocking problem of the capillary tube can be found in the first time, the maintenance time is greatly shortened, and when the capillary tube and the auxiliary capillary tube are blocked, the maintenance time is shortened. The butt joint pipes can be rotated to take down the group of butt joint pipes for maintenance, and when conditions are permitted, the threaded cap can be directly taken down, and the air pump is connected to the air inlet pipe to dredge the capillary tube and the auxiliary capillary tube, so that a good dredging effect is achieved, and the replacement cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of air-conditioning capillaries, in particular to a blockage detection machine for air-conditioning capillaries. Background Art

[0002] The capillary tube is a single copper tube with a small diameter, long length and a certain hardness. The inner diameter of the capillary tube used in the air conditioner is between 1-1.5mm (thicker than the inner diameter of the capillary tube of the refrigerator), the wall thickness is about 0.5mm, and the length is between 600-2000mm. The length is determined according to the matching needs of the air conditioner. Different powers are equipped with different lengths and inner diameters. Whether the capillary tube matches the entire refrigeration system directly affects the cooling capacity of the air conditioner or the heating capacity of the heat pump.

[0003] Since the flow cross-sectional size of the capillary tube cannot be adjusted, when the working condition of the air conditioner changes, the capillary tube is thin and long, which is easy to cause blockage. However, the blockage is not easy to find and can only be inferred, which increases the maintenance time. Once the capillary tube is blocked, it can only be replaced with new parts, and the replacement cost is high. Utility Model Content

[0004] In view of the deficiencies of the prior art, the utility model provides a blockage detection machine for air-conditioning capillary tubes, which overcomes the deficiencies of the prior art and effectively solves the problems of long maintenance time and high replacement cost.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A blockage detection machine for an air-conditioning capillary tube, comprising a first condenser tube and a second condenser tube, wherein the first condenser tube and the second condenser tube are both connected to first signal lines on one side of the outer wall, and a differential pressure sensor is connected between the two first signal lines, and an alarm is provided on one side of the differential pressure sensor;

[0007] The first condenser tube and the second condenser tube are both screwed with a butt tube on one end of the outer wall, and an air inlet pipe and an exhaust pipe are respectively welded to the outer walls of one side of the two butt tubes, and the air inlet pipe and the exhaust pipe are both screwed with a threaded cap on the outer walls of one end of the air inlet pipe and the exhaust pipe.

[0008] Preferably, a one-way valve is threadedly connected to the outer wall of one end of one of the butt-joint pipes, and a capillary is connected to the outer wall of one end of the one-way valve.

[0009] Preferably, a terminal is welded to the outer wall of one end of the capillary tube, and the other butt joint is screwed to the inner wall of the terminal.

[0010] Preferably, a secondary capillary is welded to the outer wall of the one-way valve.

[0011] Preferably, the outer wall of the one-way valve is provided with a directional mark.

[0012] Preferably, a second signal line is connected between the pressure difference sensor and the alarm.

[0013] The beneficial effects of the utility model are:

[0014] 1. The blockage detection machine for air-conditioning capillary tubes of this design uses a pressure difference sensor connected to one side outer wall of the first condenser tube and the second condenser tube through a first signal line. The pressure difference sensor can monitor the pressure difference between the two pipes. When there is a problem with the pressure difference between the two, the alarm will sound an alarm, and the capillary blockage problem can be found in the first time, which greatly reduces the maintenance time;

[0015] 2. The blockage detection machine for air-conditioning capillary tubes of this design adds a set of docking tubes. When the capillary tubes and auxiliary capillary tubes are blocked, the docking tubes can be rotated to remove the set of docking tubes for inspection. When conditions permit, the threaded caps can be directly removed and an air pump can be connected to the air inlet pipe to unclog the capillary tubes and auxiliary capillary tubes. This has a good unclogging effect and reduces the cost of replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of a blockage detection machine for air-conditioning capillary tubes proposed by the utility model;

[0017] Figure 2 This is a schematic diagram of the partial structure disassembly of a blockage detection machine for air-conditioning capillary tubes proposed by the utility model;

[0018] Figure 3 The utility model is a schematic diagram of a butt-joint pipe connection structure of a blockage detection machine for air-conditioning capillary tubes.

[0019] In the figure: 1. one-way valve; 2. first signal line; 3. differential pressure sensor; 4. second signal line; 5. alarm; 6. capillary; 7. docking tube; 8. air inlet pipe; 9. exhaust pipe; 10. threaded cap; 11. end; 12. secondary capillary; 13. first condenser; 14. second condenser. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] Embodiment 1, refer to Figure 1 A blockage detection machine for air-conditioning capillary tubes includes a first condenser tube 13 and a second condenser tube 14. The outer walls of one side of the first condenser tube 13 and the second condenser tube 14 are connected with a first signal line 2, and a pressure difference sensor 3 is connected between the two first signal lines 2. An alarm 5 is provided on one side of the pressure difference sensor 3.

[0022] In this embodiment, a pressure difference sensor 3 is connected to the outer wall of one side of the first condenser 13 and the second condenser 14 through a first signal line 2. The pressure difference sensor 3 can monitor the pressure difference between the two pipes. When there is a problem with the pressure difference value between the two, the alarm 5 will sound an alarm, and the blockage problem of the capillary 6 can be found in the first time, which greatly reduces the maintenance time.

[0023] Example 2, refer to Figure 2-3 A blockage detection machine for air-conditioning capillary tubes, the outer walls of one end of the first condenser tube 13 and the second condenser tube 14 are both screwed with a butt tube 7, and the outer walls of one side of the two butt tubes 7 are respectively welded with an intake pipe 8 and an exhaust pipe 9, and the outer walls of one end of the intake pipe 8 and the exhaust pipe 9 are both screwed with a threaded cap 10.

[0024] Reference Figure 1 A one-way valve 1 is screwed onto the outer wall of one end of one of the butt-joint pipes 7, and a capillary tube 6 is connected to the outer wall of one end of the one-way valve 1.

[0025] Reference Figure 2 A secondary capillary 12 is welded to the outer wall of the one-way valve 1 .

[0026] In this embodiment, a group of docking tubes 7 is added. When the capillary 6 and the auxiliary capillary 12 are blocked, the docking tubes 7 can be rotated to remove the group of docking tubes 7 for inspection. When conditions permit, the threaded caps 10 can be directly removed and an air pump can be connected to the air inlet pipe 8 to unclog the capillary 6 and the auxiliary capillary 12, which has a good unclogging effect and reduces the cost of replacement.

[0027] Reference Figure 2 A terminal 11 is welded to the outer wall of one end of the capillary tube 6 , and the other butt joint tube 7 is screwed to the inner wall of the terminal 11 .

[0028] Reference Figure 1 The outer wall of the one-way valve 1 is provided with a directional mark.

[0029] Reference Figure 1 A second signal line 4 is connected between the pressure difference sensor 3 and the alarm 5 .

[0030] Working principle: When the device is operating normally, the pressure difference between the first condenser 13 and the second condenser 14 will remain within a normal range. When the pressure difference sensor 3 detects a problem with the pressure difference between the two, it indicates that a blockage has occurred. The alarm 5 will sound an alarm to remind the operator to perform maintenance as soon as possible. When the capillary 6 and the auxiliary capillary 12 are blocked, the docking tube 7 can be rotated to remove the group of docking tubes 7 for maintenance. If conditions permit, the threaded cap 10 can also be directly removed, and an air pump can be connected to the air inlet pipe 8 to clear the capillary 6 and the auxiliary capillary 12.

[0031] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A blockage detection machine for air-conditioning capillary tubes, comprising a first condenser tube (13) and a second condenser tube (14), characterized in that: The outer walls of one side of the first condenser tube (13) and the second condenser tube (14) are both connected to a first signal line (2), and a differential pressure sensor (3) is connected between the two first signal lines (2), and an alarm (5) is provided on one side of the differential pressure sensor (3); The outer walls of one end of the first condenser tube (13) and the second condenser tube (14) are both screwed with a butt tube (7), and an air intake pipe (8) and an exhaust pipe (9) are respectively welded to the outer walls of one side of the two butt tubes (7), and the outer walls of one end of the air intake pipe (8) and the exhaust pipe (9) are both screwed with a threaded cap (10).

2. A blockage detection machine for air-conditioning capillary tube according to claim 1, characterized in that: A one-way valve (1) is threadedly connected to the outer wall of one end of one of the butt joint pipes (7), and a capillary tube (6) is connected to the outer wall of one end of the one-way valve (1).

3. A blockage detection machine for air-conditioning capillary tube according to claim 2, characterized in that: An end cap (11) is welded to the outer wall of one end of the capillary tube (6), and the other butt joint tube (7) is screwed onto the inner wall of the end cap (11).

4. A blockage detection machine for air-conditioning capillary tube according to claim 2, characterized in that: An auxiliary capillary tube (12) is welded to the outer wall of the one-way valve (1).

5. The blockage detection machine for air-conditioning capillary tube according to claim 2, characterized in that: The outer wall of the one-way valve (1) is provided with a directional mark.

6. The blockage detection machine for air-conditioning capillary tube according to claim 1, characterized in that: A second signal line (4) is connected between the pressure difference sensor (3) and the alarm (5).

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