Building heating ventilation air conditioner exhaust waste heat recovery system

Abstract

The utility model provides a building heating ventilation air conditioner exhaust waste heat recovery system which comprises a heat exchange pipe arranged at an air outlet of an air conditioner fan, a water inlet pipe connecting one side of the heat exchange pipe to a water storage tank and a water outlet pipe connecting the other side of the heat exchange pipe to the water storage tank, a water pump is further arranged on the water inlet pipe, and a temperature sensor is arranged in the water storage tank. Due to the fact that the building heating ventilation air conditioner exhaust waste heat recovery system is arranged, the temperature sensor is arranged in the water storage tank, the display screen is externally connected to adjust the temperature value of the water storage tank, when the temperature in the water storage tank is higher than a preset value, the display screen is arranged on the water storage tank, the display screen is arranged on the water storage tank, and the third solenoid valve is arranged on the external water inlet pipe. The system controls and opens the third electromagnetic valve to enable water in the external water inlet pipe to enter, and the water temperature in the water storage tank can be reduced, so that the water temperature in the water storage tank can be controlled within a certain range, and the water temperature is fully utilized.

Description

TECHNICAL FIELD

[0001] The utility model relates to heat energy recycling technical field especially is related to a building heating ventilation air conditioner exhaust waste heat recovery system. BACKGROUND

[0002] With the improvement of people's living standards, many families are installed with various air conditioners, such as cabinet type, hanging type, etc., since air conditioning refrigeration is realized through heat exchange, that is, the temperature of indoor air is lowered, and the hot air generated by heat exchange needs to be discharged through the air conditioner fan installed outdoors. In hot summer, a single air conditioning refrigeration machine needs to discharge a large amount of hot air to the atmospheric environment during refrigeration operation, and a large amount of hot air is directly discharged into the atmosphere, which not only causes waste of energy, but also the discharged heat will also increase the ambient temperature, causing serious environmental heat pollution.

[0003] The utility model patent CN201438022U discloses an air conditioner waste heat recovery system, which brings the heat generated by the air conditioner into the water storage tank through the water inlet pipe and the water outlet pipe, but cannot adjust the temperature of the water in the water storage tank, so as to fully utilize the hot water at a certain temperature. UTILITY MODEL CONTENT

[0004] The utility model solves the technical problem of providing a building heating ventilation air conditioner exhaust waste heat recovery system to solve the problem that the water temperature in the water storage tank cannot be adjusted.

[0005] To solve the above technical problems, the utility model provides a building heating ventilation air conditioner exhaust waste heat recovery system, which comprises a heat exchange pipe arranged at the air conditioner fan exhaust port, a water inlet pipe connected to one side of the heat exchange pipe to the water storage tank, a water outlet pipe connected to the other side of the heat exchange pipe to the water storage tank, a water pump arranged on the water inlet pipe, a temperature sensor arranged in the water storage tank, an external water inlet pipe arranged on the water storage tank, and a third electromagnetic valve arranged on the external water inlet pipe.

[0006] In the preferred scheme, a low water level sensor and a high water level sensor are installed in the water storage tank.

[0007] In the preferred scheme, a plurality of water storage tanks are provided, which are connected to the heat exchange pipe through pipelines respectively, a first electromagnetic valve is arranged on the water inlet pipe between the water storage tank and the water pump, and a second electromagnetic valve is arranged on the water outlet pipe.

[0008] In the preferred scheme, a domestic water pipe is further arranged, which is connected between the first electromagnetic valve and the water pump; a manual valve is arranged on the domestic water pipe.

[0009] In the preferred scheme, a temperature sensor is arranged at the air conditioner fan exhaust port.

[0010] In the preferred scheme, the heat exchange pipe is a copper pipe, and the inlet water pipe, the outlet water pipe and the domestic water pipe are all wrapped with heat insulation cotton.

[0011] In the preferred scheme, a filter and a treatment instrument are further installed on the outlet water pipe.

[0012] The building heating ventilation air conditioning exhaust heat recovery system has the advantages that the water temperature in the water storage tank can be reduced when the temperature in the water storage tank is higher than the preset value, the water temperature in the water storage tank can be controlled within a certain range, and the water temperature can be fully utilized. BRIEF DESCRIPTION OF DRAWINGS

[0013] The building heating ventilation air conditioning exhaust heat recovery system has the advantages that the water temperature in the water storage tank can be reduced when the temperature in the water storage tank is higher than the preset value, the water temperature in the water storage tank can be controlled within a certain range, and the water temperature can be fully utilized.

[0014] Figure 1 is the front view structure diagram of the building heating ventilation air conditioning exhaust heat recovery system.

[0015] Reference signs: heat exchange pipe 11; inlet water pipe 12; water storage tank 13; water pump 14; external inlet water pipe 15; outlet water pipe 16; third electromagnetic valve 17; low water level sensor 18; high water level sensor 19; first electromagnetic valve 21; second electromagnetic valve 22; domestic water pipe 23; filter 24; treatment instrument 25; manual valve 26. DETAILED DESCRIPTION

[0016] Please refer to Figure 1 The building heating ventilation air conditioning exhaust heat recovery system has the advantages that the water temperature in the water storage tank can be reduced when the temperature in the water storage tank is higher than the preset value, the water temperature in the water storage tank can be controlled within a certain range, and the water temperature can be fully utilized.

[0017] A display screen can be arranged in the system and connected to the temperature sensor, so that the temperature of the water in the water storage tank 13 can be directly displayed on the display screen, and then the temperature sensor detects the temperature in the water storage tank 13; when the detected temperature is lower than the preset temperature, the heat exchange can continue to circulate; when the detected temperature is higher than the preset temperature, the controller of the recovery system controls the third electromagnetic valve 17 to be opened, the temperature in the water storage tank 13 is reduced through the external water pipe, and the temperature is maintained within a certain range; and the temperature value can be set according to requirements.

[0018] In this way, the water storage tank 13 can be kept within a certain temperature range, which has certain advantages, for example, setting the temperature a little higher can be used for foot bath, setting the temperature a little lower can be used for washing hands and vegetables, etc.

[0019] In the preferred embodiment, a low water level sensor 18 and a high water level sensor 19 are installed in the water storage tank 13.

[0020] The low water level sensor 18 and the high water level sensor 19 can also be combined water level detection sensors, such as a floating ball sensor, etc.

[0021] When the system controller detects that the water storage tank 13 is at a low water level, the third electromagnetic valve 17 can be opened to add water, and when the system controller detects that the water storage tank 13 is at a high water level, the third electromagnetic valve 17 cannot be opened to add water. At this time, the water storage tank 13 can be switched.

[0022] In the preferred embodiment, multiple water storage tanks 13 are provided, which are connected to the heat exchange pipe 11 through pipes, and the first electromagnetic valve 21 is provided on the water inlet pipe 12 between the water storage tank 13 and the water pump 14, and the second electromagnetic valve 22 is provided on the water outlet pipe 16.

[0023] In this way, multiple water storage tanks 13 can be set to multiple temperature values, and when hot water of a certain temperature is needed, the corresponding water storage tank 13 and the first electromagnetic valve 21 of the corresponding pipe can be opened.

[0024] In the preferred embodiment, a domestic water pipe 23 is also provided, which is connected between the first electromagnetic valve 21 and the water pump 14, and a manual valve 26 is installed on the domestic water pipe 23.

[0025] The domestic water pipe 23 can be directly used for human life.

[0026] In the preferred embodiment, a temperature sensor is installed at the air outlet of the air conditioner fan. When the temperature sensor detects that the air conditioner hot air is discharged, the system controller can control the water pump 14 to be opened to perform heat exchange circulation.

[0027] In the preferred embodiment, the heat exchange pipe 11 is a copper pipe, and the water inlet pipe 12, the water outlet pipe 16, and the domestic water pipe 23 are all wrapped with heat insulation cotton.

[0028] In the preferred embodiment, a filter 24 and a treatment instrument 25 are also installed on the water outlet pipe 16.

[0029] The filter 24 and the treatment instrument 25 can filter and purify the water in the water outlet pipe 16, which is convenient for later use.

[0030] The normal waste heat recovery process is that the water pump 14 circulates the water in the water storage tank 13 to the heat exchange pipe 11 to exchange heat, and then circulates the exchanged water to the water storage tank 13, so that the water in the water storage tank 13 has a certain temperature, thereby fully utilizing the water with temperature, and achieving the purpose of waste heat utilization of the air conditioner exhaust outlet.

[0031] The above-mentioned embodiments are only preferred technical solutions of the present application, and should not be regarded as limitations of the present application. The protection scope of the present application should be based on the technical solutions recorded in the claims, including the equivalent replacement solutions of the technical features recorded in the claims. That is, the equivalent replacement improvements within this range are also within the protection scope of the present application.

Claims

1. A building heating, ventilation, and air conditioning exhaust heat recovery system, characterized by, The application relates to a heat exchange pipe (11) arranged at the air outlet of an air conditioner fan, a water inlet pipe (12) connected to one side of the heat exchange pipe (11) and connected to a water storage tank (13), a water outlet pipe (16) connected to the other side of the heat exchange pipe (11) and connected to the water storage tank (13), a water pump (14) arranged at the water inlet pipe (12), a temperature sensor arranged in the water storage tank (13), an external water inlet pipe (15) arranged at the water storage tank (13), and a third electromagnetic valve (17) arranged at the external water inlet pipe (15).

2. The building heating, ventilation, and air conditioning exhaust heat recovery system of claim 1, wherein: A low water level sensor (18) and a high water level sensor (19) are arranged in the water storage tank (13).

3. The system according to claim 2, wherein: A plurality of water storage tanks (13) are arranged and connected to the heat exchange pipe (11) through pipes, a first electromagnetic valve (21) is arranged at the water inlet pipe (12) between the water storage tank (13) and the water pump (14), and a second electromagnetic valve (22) is arranged at the water outlet pipe (16).

4. The system according to claim 1, wherein: A domestic water pipe (23) is further arranged and connected between the first electromagnetic valve (21) and the water pump (14); and a manual valve (26) is arranged at the domestic water pipe (23).

5. The system according to claim 1, wherein: A temperature sensor is arranged at the air outlet of the air conditioner fan.

6. The building HVAC exhaust heat recovery system of claim 3, wherein: The heat exchange pipe (11) is a copper pipe, and heat insulation cotton is wrapped around the water inlet pipe (12), the water outlet pipe (16) and the domestic water pipe (23).

7. The building HVAC exhaust heat recovery system of claim 6, wherein: A filter (24) and a processing instrument (25) are further arranged at the water outlet pipe (16).

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