Cyclic utilization and automatic liquid medicine blending device for cleaning liquid of surface air cooler of central air conditioner

Abstract

The utility model discloses a cleaning liquid recycling and liquid medicine automatic blending device for a central air conditioner surface air cooler. The cleaning liquid recycling and liquid medicine automatic blending device comprises a lifting pump, a liquid medicine blending box, a cleaning liquid medicine storage barrel, a tap water electromagnetic valve and a frequency conversion metering pump. The lifting pump is mounted below the surface air cooler water pan, a water inlet of the lifting pump is connected with the surface air cooler water pan through a pipeline, and a water outlet of the lifting pump is connected with a water return port of the liquid medicine blending box through a pipeline; a water inlet of the tap water electromagnetic valve is connected with a tap water source through a pipeline, and a water outlet is connected with a clear water injection port of the liquid medicine blending box through a pipeline; a water inlet of the variable-frequency metering pump is connected with the cleaning liquid medicine storage barrel through a pipeline, and a water outlet of the variable-frequency metering pump is connected with a cleaning liquid medicine injection port of the liquid medicine blending box through a pipeline; and the surface air cooler cleaning solution spraying pump is connected with the bottom of the liquid medicine blending box through a pipeline. According to the technical content disclosed by the utility model, not only can the concentration of liquid medicine blending be ensured, but also the usage amount of cleaning agents can be effectively saved, and the pollution of cleaning liquid to the environment is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of air conditioning, and more specifically to a central air conditioning surface cooler cleaning liquid recycling and liquid automatic blending device. Background Art

[0002] During the development of the automatic cleaning system for central air-conditioning condensers, the refrigerant cleaning agent needs to be sprayed on the surface of the air-conditioning condenser for a long time. If the cleaning liquid is discharged directly after spraying, it will not only cause a large amount of cleaning agent waste, but also increase the pollution of water quality during the cleaning process.

[0003] Therefore, how to provide a central air conditioning surface cooler cleaning liquid recycling and liquid automatic blending device has become a technical problem that urgently needs to be solved in this field. Utility Model Content

[0004] The utility model aims to provide a device for recycling cleaning liquid of a central air-conditioning surface cooler and automatically blending liquid medicine.

[0005] According to the utility model, a central air conditioner surface cooler cleaning liquid recycling and liquid automatic blending device is provided, including a lifting pump, a liquid blending box, a cleaning liquid storage barrel, a tap water solenoid valve and a variable frequency metering pump;

[0006] The lifting pump is installed under the water receiving pan of the surface cooler, and its water inlet is connected to the water receiving pan of the surface cooler through a pipeline, and its water outlet is connected to the return water port of the liquid medicine blending box through a pipeline; the water inlet of the tap water solenoid valve is connected to the tap water source through a pipeline, and its water outlet is connected to the clean water inlet of the liquid medicine blending box through a pipeline; the water inlet of the variable frequency metering pump is connected to the cleaning liquid storage barrel through a pipeline, and its water outlet is connected to the clean liquid inlet of the liquid medicine blending box through a pipeline; the surface cooler cleaning solution spray pump is connected to the bottom of the liquid medicine blending box through a pipeline.

[0007] Optionally, the liquid blending box is provided with a primary sedimentation tank, a secondary water tank and an automatic cleaning liquid blending area;

[0008] The primary sedimentation tank is separated from the secondary water tank by a comb plate; a low-density filter is provided between the secondary water tank and the automatic blending area for the cleaning liquid;

[0009] The water return port is arranged above the primary sedimentation tank; the clean water injection port and the cleaning liquid injection port are arranged above the automatic blending area of ​​the cleaning liquid.

[0010] Optionally, the device further comprises: a liquid medicine circulation pump;

[0011] The liquid medicine circulation pump is installed at the bottom of the cleaning liquid automatic blending area; the surface cooler cleaning solution spray pump is connected to the liquid medicine circulation pump through a pipeline.

[0012] Optionally, the device further comprises: a liquid level gauge for the liquid medicine blending box;

[0013] The liquid level gauge of the liquid blending box is arranged inside the automatic blending area of ​​the cleaning liquid.

[0014] Optionally, the device further comprises: a level gauge for a cleaning liquid storage tank;

[0015] The cleaning liquid storage barrel liquid level gauge is arranged inside the cleaning liquid storage barrel.

[0016] Optionally, the device further comprises: a turbine flowmeter;

[0017] The turbine flowmeter is arranged on the tap water pipeline and between the tap water solenoid valve and the clean water injection port.

[0018] Optionally, the height of the comb plate is lower than the height of the medicine liquid blending box.

[0019] According to the technical content disclosed in the utility model, the following beneficial effects are achieved: by installing the lifting pump under the water receiving pan of the surface cooler, the water inlet is connected to the water receiving pan of the surface cooler through a pipeline, and the water outlet is connected to the water return port of the liquid medicine blending box through a pipeline; the water inlet of the tap water solenoid valve is connected to the tap water source through a pipeline, and the water outlet is connected to the clean water inlet of the liquid medicine blending box through a pipeline; the water inlet of the variable frequency metering pump is connected to the cleaning liquid storage barrel through a pipeline, and the water outlet is connected to the cleaning liquid inlet of the liquid medicine blending box through a pipeline; the surface cooler cleaning solution spray pump is connected to the bottom of the liquid medicine blending box through a pipeline; automatic blending of liquid medicine is achieved; at the same time, through the use of this device, not only the concentration of liquid medicine blending can be guaranteed, but also the use of cleaning agent can be effectively saved, and the pollution of the cleaning liquid to the environment can be reduced.

[0020] Other features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the present invention and, together with the description, serve to explain the principles of the present invention.

[0022] Figure 1 The present invention is a schematic diagram of a central air-conditioning surface cooler cleaning liquid recycling and liquid automatic blending device provided according to an embodiment.

[0023] Explanation of the accompanying drawings: 2-medicine liquid blending box, 3-cleaning medicine liquid storage barrel, 4-tap water solenoid valve, 5-frequency conversion metering pump, 6-return water inlet, 7-clean water injection port, 8-cleaning medicine liquid injection port, 9-surface cooler cleaning solution spray pump, 10-primary sedimentation tank, 11-secondary water tank, 12-cleaning liquid automatic blending area, 13-low-density filter screen, 14-comb plate, 15-medicine liquid circulation pump, 16-medicine liquid blending box level gauge, 17-cleaning medicine liquid storage barrel level gauge, 18-turbine flowmeter. DETAILED DESCRIPTION

[0024] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention.

[0025] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.

[0026] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered as part of the specification.

[0027] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0028] It should be noted that like reference numerals and letters refer to similar items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0029] According to the utility model, if Figure 1 As shown, a central air conditioner surface cooler cleaning liquid recycling and liquid automatic blending device is provided, including a lifting pump (not shown in the figure), a liquid blending box 2, a cleaning liquid storage barrel 3, a tap water solenoid valve 4 and a variable frequency metering pump 5;

[0030] The lifting pump is installed under the water receiving pan of the surface cooler, and its water inlet is connected to the water receiving pan of the surface cooler through a pipeline, and its water outlet is connected to the return water port 6 of the liquid medicine blending box 2 through a pipeline; the water inlet of the tap water solenoid valve 4 is connected to the tap water source through a pipeline, and its water outlet is connected to the clean water inlet 7 of the liquid medicine blending box 2 through a pipeline; the water inlet of the variable frequency metering pump 5 is connected to the cleaning liquid storage barrel 3 through a pipeline, and its water outlet is connected to the cleaning liquid injection port 8 of the liquid medicine blending box 2 through a pipeline; the surface cooler cleaning solution spray pump 9 is connected to the bottom of the liquid medicine blending box 2 through a pipeline.

[0031] In some embodiments, the lifting pump adopts a full injection molded anti-corrosion and waterproof design, and the lifting pump has an automatic start and stop function according to the liquid level. When the cleaning liquid level reaches a certain height, the lifting pump starts to lift the clean cleaning liquid deposited in the water receiving tray into the liquid blending box 2. When the liquid level is lower than the set value, the lifting pump automatically stops and waits for the next operation.

[0032] The liquid blending box 2 is provided with a primary sedimentation tank 10, a secondary water tank 11 and a cleaning liquid automatic blending area 12;

[0033] The primary sedimentation tank is separated from the secondary water tank 11 by a comb plate 14; a low-density filter screen 13 is provided between the secondary water tank 11 and the automatic blending area 12 for cleaning liquid;

[0034] The water return port 6 is arranged above the primary sedimentation tank; the clean water injection port 7 and the cleaning liquid injection port 8 are arranged above the cleaning liquid automatic blending area 12.

[0035] The height of the comb plate 14 is lower than that of the liquid medicine blending box 2 .

[0036] The cleaning liquid of the central air conditioner cooler is injected into the primary sedimentation tank 10 through the return water port 6 above the primary sedimentation tank 10. After the primary sedimentation tank 10 reaches a certain liquid level, the recycled cleaning liquid will enter the secondary water tank 11 through the high-position comb plate 14, where the impurities in the cleaning liquid can be precipitated, and the comb plate 14 can filter out the floating impurities in the cleaning liquid.

[0037] The secondary water pool 11 and the low-density filter 13, the liquid medicine passes through the low-density filter 13 through the liquid level difference and enters the automatic blending area 12 of the cleaning liquid, and the low-density filter 13 can filter out most of the granular debris.

[0038] The device further comprises: a liquid medicine circulation pump 15;

[0039] The liquid medicine circulation pump 15 is installed at the bottom of the cleaning liquid automatic blending area 12; the surface cooler cleaning solution spray pump 9 is connected to the liquid medicine circulation pump 15 through a pipeline.

[0040] The device also includes: a liquid level gauge 16 for the liquid medicine blending box;

[0041] The liquid level gauge 16 of the liquid blending box is arranged inside the automatic blending area 12 of the cleaning liquid.

[0042] The device also includes: a level gauge 17 for the cleaning liquid storage tank;

[0043] The cleaning liquid storage tank level gauge 17 is disposed inside the cleaning liquid storage tank 3 .

[0044] The device further comprises: a turbine flow meter 18;

[0045] The turbine flowmeter 18 is disposed on the tap water pipeline and between the tap water solenoid valve 4 and the clean water injection port 7 .

[0046] Specific working principle: During the start-up phase of the cleaning system, the system automatically starts the tap water solenoid valve 4 and simultaneously starts the variable frequency metering pump 5. According to the flow rate of the turbine flowmeter 18, the injection amount of the variable frequency metering pump 5 is automatically adjusted to make the concentration of the surface cooler cleaning liquid reach the set concentration;

[0047] When the liquid level of the cleaning liquid automatic blending area 12 reaches the upper liquid level, the surface cooler cleaning solution spray pump 9 is started to start the cleaning liquid spraying operation on the central air conditioner surface cooler;

[0048] When the liquid level of the cleaning liquid automatic blending area 12 is lower than the lower liquid level page, the tap water solenoid valve 4 and the variable frequency metering pump 5 are automatically started to replenish the cleaning liquid.

[0049] During the circulation and spraying process of the cleaning liquid in the automatic cleaning system of the central air conditioner, the return liquid level exceeds the overflow port, and the return cleaning liquid will pass through the water pipe of the overflow port to discharge the excess recycled liquid;

[0050] The cleaning liquid storage barrel 3 is provided with upper and lower liquid level gauges. The lower liquid level gauge of the cleaning liquid barrel is the basic condition to ensure sufficient medicine during the blending process. When the liquid level in the cleaning liquid barrel is lower than the lower liquid level, the cleaning system stops and flashes an alarm to prompt manual addition of medicine. The upper liquid level gauge of the cleaning liquid storage barrel is mainly used to control the cleaning liquid addition process so as not to cause liquid outflow and waste.

[0051] In summary, the technical content disclosed in the utility model can not only ensure the concentration of the mixed liquid, but also effectively save the usage of cleaning agents and reduce the pollution of the cleaning liquid to the environment.

[0052] Although some specific embodiments of the present invention have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present invention. It should be understood by those skilled in the art that the above embodiments may be modified without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A central air conditioning surface cooler cleaning liquid recycling and liquid automatic blending device, characterized in that: include: Lifting pump, liquid medicine blending box, cleaning liquid storage barrel, tap water solenoid valve and variable frequency metering pump; The lifting pump is installed under the water receiving pan of the surface cooler, and its water inlet is connected to the water receiving pan of the surface cooler through a pipeline, and its water outlet is connected to the return water port of the liquid medicine blending box through a pipeline; the water inlet of the tap water solenoid valve is connected to the tap water source through a pipeline, and its water outlet is connected to the clean water inlet of the liquid medicine blending box through a pipeline; the water inlet of the variable frequency metering pump is connected to the cleaning liquid storage barrel through a pipeline, and its water outlet is connected to the clean liquid inlet of the liquid medicine blending box through a pipeline; the surface cooler cleaning solution spray pump is connected to the bottom of the liquid medicine blending box through a pipeline.

2. The central air conditioner surface cooler cleaning liquid recycling and liquid automatic blending device according to claim 1 is characterized in that: The liquid medicine blending box is provided with a primary sedimentation tank, a secondary water tank and a cleaning liquid automatic blending area; The primary sedimentation tank is separated from the secondary water tank by a comb plate; a low-density filter is provided between the secondary water tank and the automatic blending area for the cleaning liquid; The water return port is arranged above the primary sedimentation tank; the clean water injection port and the cleaning liquid injection port are arranged above the automatic blending area of ​​the cleaning liquid.

3. The central air conditioner surface cooler cleaning liquid recycling and liquid automatic blending device according to claim 2 is characterized in that: The device also includes: a liquid medicine circulation pump; The liquid medicine circulation pump is installed at the bottom of the cleaning liquid automatic blending area; the surface cooler cleaning solution spray pump is connected to the liquid medicine circulation pump through a pipeline.

4. The central air conditioner surface cooler cleaning liquid recycling and liquid automatic blending device according to claim 3 is characterized in that: The device also includes: a liquid level gauge for the liquid medicine blending box; The liquid level gauge of the liquid blending box is arranged inside the automatic blending area of ​​the cleaning liquid.

5. The central air conditioner surface cooler cleaning liquid recycling and liquid automatic blending device according to claim 4 is characterized in that: The device also includes: a level gauge for the cleaning solution storage tank; The cleaning liquid storage barrel liquid level gauge is arranged inside the cleaning liquid storage barrel.

6. The central air conditioner surface cooler cleaning liquid recycling and liquid automatic blending device according to claim 5 is characterized in that: The device also includes: a turbine flow meter; The turbine flowmeter is arranged on the tap water pipeline and between the tap water solenoid valve and the clean water injection port.

7. The central air conditioner surface cooler cleaning liquid recycling and liquid automatic blending device according to claim 6 is characterized in that: The height of the comb-shaped plate is lower than the height of the liquid medicine blending box.

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