Intelligent control combined unit for anti-freezing pump valve

Abstract

The utility model relates to the technical field of air conditioners, in particular to an intelligent control combined unit for an anti-freezing pump valve, which comprises a water inlet process pipe and a water return process pipe, the water inlet process pipe is respectively provided with an outer net water inlet and a first unit water receiving port, and the water return process pipe is respectively provided with an outer net water return port and a second unit water receiving port. An anti-freezing pipeline connected with the water return process pipe in parallel is arranged between the outer net water return port and the unit second water receiving port, a warming heater and a water pump are arranged on the anti-freezing pipeline, a first electric control valve is arranged on the water return process pipe, a second electric control valve is arranged on the anti-freezing pipeline, and a first temperature sensor is arranged at the position, close to the unit second water receiving port, of the water return process pipe. The first electric control valve, the first temperature sensor, the temperature increasing heater, the water pump and the second electric control valve are all connected with the controller, the anti-freezing purpose is achieved by arranging anti-freezing pipelines connected in parallel, namely when anti-freezing is needed, the temperature increasing heater heats fluid, and the flowing fluid can be kept at a certain temperature.

Description

Technical Field

[0001] The utility model belongs to the technical field of air conditioning, and in particular relates to an antifreeze pump valve intelligent control combined unit. Background Art

[0002] With the progress and development of human civilization, air-conditioning technology has been widely used in various work and living environments of human beings. People have higher and higher requirements for indoor environment. Introducing fresh air from air-conditioning to improve indoor air quality is the choice of many users.

[0003] Fresh air ceiling air conditioners and combined air conditioners are responsible for cooling in summer and heating and humidification in winter, but there are also problems such as energy costs, difficulty in ensuring the quality of fresh air, and freezing and cracking in winter.

[0004] Taking antifreeze as an example, the usual solution is: during the manufacturing process, several loops are left, and instead of copper tubes, electric heating tubes are used. In winter when the temperature drops to 0°C, electric heating is put into operation for antifreeze. However, there are some disadvantages. For example, after the electric heating tube is inserted into the fin tube, it is difficult to repair and maintain when a burnout occurs. During summer cooling and dehumidification, the outdoor air humidity is high, and the water vapor remaining in the electric heating tube is difficult to remove, which can easily cause corrosion and leakage safety problems. At the same time, it also consumes a lot of electricity, resulting in energy waste. Utility Model Content

[0005] The utility model provides an antifreeze pump valve intelligent control combined unit, which can solve the problems pointed out in the background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: including an inlet process pipe and a return process pipe, the inlet process pipe respectively has an external network water inlet and a first water inlet of the unit, the return process pipe respectively has an external network return water inlet and a second water inlet of the unit, an antifreeze pipeline connected in parallel with the return process pipe is arranged between the external network return water inlet and the second water inlet of the unit, a warming heater and a water pump are arranged on the antifreeze pipeline, a first electric regulating valve is arranged on the return process pipe, a second electric regulating valve is arranged on the antifreeze pipeline, a first temperature sensor is arranged on the return process pipe near the second water inlet of the unit, and the first electric regulating valve, the first temperature sensor, the warming heater, the water pump and the second electric regulating valve are all connected to the controller.

[0007] Preferably, a connecting pipe is provided between the antifreeze pipeline and the water inlet process pipe, an opening and closing valve is provided on the connecting pipe, and the connection point between the connecting pipe and the antifreeze pipeline is located at the front side of the second electric regulating valve.

[0008] Preferably, a regulating valve is provided on the antifreeze pipeline of the connection point, and the regulating valve is located at the front side of the connection point.

[0009] Preferably, a second temperature sensor and a third temperature sensor are respectively provided at the external network water inlet and the external network water return outlet.

[0010] Beneficial effect: Compared with the traditional antifreeze mode, the utility model achieves the purpose of antifreeze by setting parallel antifreeze pipelines. That is, when antifreeze is needed, the warming heater heats the fluid so that the flowing fluid can be maintained at a certain temperature. This structure is simpler to produce, easier to maintain, and more energy-efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the structure of the utility model;

[0012] Description of reference numerals:

[0013] Numbers in the figure: water inlet process pipe 1; external network water inlet 11; first water inlet 12 of the unit; second temperature sensor 13; return water process pipe 2; external network return water inlet 21; second water inlet 22 of the unit; first temperature sensor 23; first electric regulating valve 24; third temperature sensor 25; antifreeze pipeline 3; heating heater 31; water pump 32; second electric regulating valve 33; regulating valve 34; controller 4; connecting pipe 5; opening and closing valve 6; antifreeze equipment 7; DETAILED DESCRIPTION

[0014] A specific implementation of the present utility model is described in detail below in conjunction with the accompanying drawings, but it should be understood that the protection scope of the present utility model is not limited by the specific implementation mode.

[0015] Example 1: Figure 1 As shown, an antifreeze pump-valve intelligent control combined unit includes an inlet process pipe 1 and a return water process pipe 2, the inlet process pipe 1 has an external network water inlet 11 and a first water inlet 12 of the unit, the return water process pipe 2 has an external network return water inlet 21 and a second water inlet 22 of the unit, an antifreeze pipeline 3 connected in parallel with the return water process pipe 2 is arranged between the external network return water inlet 21 and the second water inlet 22 of the unit, a warming heater 31 and a water pump 32 are arranged on the antifreeze pipeline 3, a first electric regulating valve 24 is arranged on the return water process pipe 2, a second electric regulating valve 33 is arranged on the antifreeze pipeline 3, a first temperature sensor 23 is arranged on the return water process pipe 2 near the second water inlet 12 of the unit, the first electric regulating valve 24, the first temperature sensor 23, the warming heater 31, the water pump 32 and the second electric regulating valve 33 are all connected to the controller 4, and the warming heater 31 assists in heating the fluid to increase its temperature and prevent it from freezing.

[0016] In some embodiments, a connecting pipe 5 is provided between the antifreeze pipeline 3 and the water inlet process pipe 1, and an on-off valve 6 is provided on the connecting pipe 5. The connection point between the connecting pipe 5 and the antifreeze pipeline 3 is located on the front side of the second electric regulating valve 33. The provision of the connecting pipe 5 and the on-off valve 6 can further assist in antifreeze. That is, when antifreeze is needed, when the on-off valve 6 reaches the set opening condition, part of the fluid heated by the warming heater 31 will enter the water inlet process pipe 1 through the connecting pipe 5, thereby increasing the temperature in the water inlet process pipe 1, and then enter the antifreeze device 7 through the water inlet process pipe 1, so that antifreeze can be quickly performed and the antifreeze effect is improved. That is, it does not need to be completely recycled back to the antifreeze device 7 through the external network return water port 21, thereby improving the antifreeze response, avoiding unnecessary heat loss, and improving the antifreeze effect and response speed.

[0017] Specifically, a regulating valve 34 is provided on the connection point antifreeze pipeline 3, and the regulating valve 34 is located on the front side of the connection point. Through the coordinated adjustment of the regulating valve 34 and the first electric regulating valve 24, the proportion of the fluid entering the connecting pipe 5 can be adjusted to achieve multiple adjustments.

[0018] In some embodiments, a second temperature sensor 13 and a third temperature sensor 25 are respectively provided at the external network water inlet 11 and the external network return water outlet 21. The second temperature sensor 13 and the third temperature sensor 25 are both connected to the controller 4 to detect the system operation status and promptly feedback abnormalities.

[0019] The working principle or working mode of the utility model is as follows: the temperature is monitored by the first temperature sensor 23 and the controller 4 performs corresponding control, which is specifically as follows:

[0020] 1) If the temperature is greater than the set value, the second electric regulating valve 33 is controlled to be closed in a progressive manner to the minimum opening for winter heating, and the first electric regulating valve 24 is opened;

[0021] 2) If the temperature is greater than the set value, it is determined to be in the antifreeze state, and the second electric regulating valve 33 is controlled to open wider and the first electric regulating valve 24 is closed; until the temperature is greater than another set value, the antifreeze working mode is performed.

[0022] The above disclosures are only several specific embodiments of the present invention. However, the embodiments of the present invention are not limited thereto. Any changes that can be conceived by those skilled in the art should fall within the protection scope of the present invention.

Claims

1. An antifreeze pump valve intelligent control combined unit, comprising a water inlet process pipe (1) and a water return process pipe (2), wherein the water inlet process pipe (1) has an external network water inlet (11) and a first water receiving port (12) of the unit, and the water return process pipe (2) has an external network water return port (21) and a second water receiving port (22) of the unit, characterized in that: An antifreeze pipeline (3) connected in parallel with the return water process pipe (2) is provided between the external network return water port (21) and the second water inlet (22) of the unit; a temperature-increasing heater (31) and a water pump (32) are provided on the antifreeze pipeline (3); a first electric regulating valve (24) is provided on the return water process pipe (2); a second electric regulating valve (33) is provided on the antifreeze pipeline (3); a first temperature sensor (23) is provided on the return water process pipe (2) near the second water inlet (22) of the unit; and the first electric regulating valve (24), the first temperature sensor (23), the temperature-increasing heater (31), the water pump (32) and the second electric regulating valve (33) are all connected to a controller (4).

2. The antifreeze pump valve intelligent control combined unit according to claim 1, characterized in that: A connecting pipe (5) is provided between the antifreeze pipeline (3) and the water inlet process pipe (1), an on-off valve (6) is provided on the connecting pipe (5), and a connection point between the connecting pipe (5) and the antifreeze pipeline (3) is located in front of the second electric regulating valve (33).

3. The antifreeze pump valve intelligent control combined unit according to claim 2 is characterized in that: The connection point antifreeze pipeline (3) is provided with a regulating valve (34), and the regulating valve (34) is located at the front side of the connection point.

4. An antifreeze pump valve intelligent control combined unit according to any one of claims 1 to 3, characterized in that: A second temperature sensor (13) and a third temperature sensor (25) are respectively provided at the external network water inlet (11) and the external network water return outlet (21).

Images