All-year humidity control air treatment device

Abstract

The invention relates to a full-year humidity control air treatment device which is connected with a water loop water inlet pipe and a water loop water outlet pipe. Comprising an air processing unit, a compressor, a four-way valve, a gas-liquid separator, a high-pressure liquid storage device, a refrigerant water heat exchanger, an expansion valve, a one-way valve, a water pipe electric control valve and an air pipe electric control valve. Through the connection of the components and the characteristic that the specific heat capacity of water is much higher than that of air, a water loop serves as a cold and heat sink. Compared with the uncontrollable air supply temperature of a traditional condensation type dehumidifier, the condensation heat is discharged to the water loop in advance, then heat is absorbed from the water loop as appropriate, the dehumidification effect is good, the temperature control precision is high, and the relative humidity can be effectively controlled.

Description

Technical Field

[0001] The present invention relates to the field of air conditioning equipment, and in particular to a year-round humidity control air processing device. Background Art

[0002] With the development of science and technology, some production and storage areas in civil and industrial buildings have proposed the desire to control indoor temperature and humidity throughout the year and to operate air handling systems in an energy-saving manner. In particular, how to ensure appropriate humidity in the humid spring climate in the south has always been the focus of research for HVAC engineers.

[0003] Traditional condensing dehumidifiers use the refrigeration cycle principle to dehumidify, and the condensation heat is directly used for air reheating. The air supply temperature cannot be adjusted, the control accuracy is low, and the circulating air volume is small, which cannot meet the humidity control requirements for summer cooling and winter heating. In short, traditional condensing dehumidifiers have low indoor humidity control accuracy and are not suitable for year-round humidity control needs.

[0004] CN116025972A discloses an integrated water loop multifunctional heat balancer, which can achieve heat balance of the water loop and provide a good improvement basis for solving the above-mentioned problems of the traditional condensing dehumidifier. However, this technology does not have a technical solution for indoor humidity control throughout the year and cannot directly achieve humidity control. Summary of the invention

[0005] The purpose of the present invention is to provide a year-round humidity control air treatment device, which is integrated and improved on the principles of traditional condensing dehumidifiers and air treatment devices for cooling or heating. Specifically, a year-round humidity control air treatment device is set on the water loop provided by the integrated water loop multifunctional heat balancer disclosed in CN116025972A to meet the humidity control during summer cooling and winter heating, and can also perform condensation dehumidification and partial reheating in the humid spring climate, achieving accurate humidity control, and providing a good solution for year-round humidity control in the south.

[0006] The technology of the present invention is implemented as follows: an air treatment device for controlling humidity throughout the year is connected to a water loop water inlet pipe and a water loop water outlet pipe; it includes an air treatment unit, a compressor, a four-way valve, a gas-liquid separator, a high-pressure liquid storage device, a refrigerant-water heat exchanger, an expansion valve, a non-return valve, a water pipe electric regulating valve, and an air pipe electric regulating valve;

[0007] Wherein: the air handling unit is divided into an air mixing section, an air filtering section, a refrigerant-air heat exchanger, a water-air heat exchanger, and a fan arranged in sequence according to the wind direction; the air mixing section is provided with a return air duct interface and a fresh air duct interface to connect the return air duct and the fresh air duct respectively; the return air duct interface is provided with a first air duct electric regulating valve, and the fresh air duct interface is provided with a second air duct electric regulating valve;

[0008] The compressor outlet is connected to the first interface of the four-way valve;

[0009] The second interface of the four-way valve is connected to the refrigerant-air heat exchanger and then separated into a first branch pipe and a second branch pipe. The first branch pipe is connected to the first expansion valve and then merged into the high-pressure liquid reservoir. The second branch pipe is connected to the second one-way valve and then connected to the high-pressure liquid reservoir.

[0010] The third interface of the four-way valve is connected to the refrigerant tube bundle of the refrigerant-water heat exchanger, and then the third branch pipe and the fourth branch pipe are separated. The third branch pipe is connected to the second expansion valve and then merged into the high-pressure liquid reservoir. The fourth branch pipe is connected to the first check valve and then connected to the high-pressure liquid reservoir.

[0011] The fourth interface of the four-way valve is connected to the gas-liquid separator, and then connected to the compressor inlet;

[0012] The water loop inlet pipe is divided into a first water inlet branch and a second water inlet branch, and the water loop outlet pipe is divided into a first water outlet branch and a second water outlet branch; the first water inlet branch is connected to the water-air heat exchanger, and after heat exchange, is connected to the first outlet pipe branch, and a first water pipe electric regulating valve is arranged on the first outlet pipe branch;

[0013] The second water inlet branch is connected to the water tube bundle of the refrigerant-water heat exchanger, and is connected to the second outlet branch after heat exchange, and a second water pipe electric regulating valve is arranged on the second outlet branch.

[0014] Compared with the related art, the year-round humidity control air treatment device provided by the present invention has the following advantages:

[0015] 1. The present invention uses the characteristic that the specific heat capacity of water is much higher than that of air, and uses the water loop as a cold and hot sink. Compared with the traditional condensing dehumidifier whose air supply temperature is uncontrollable, the present invention discharges the condensation heat to the water loop first, and then absorbs heat from the water loop as appropriate, which has good dehumidification effect, high temperature control accuracy, and effective control of relative humidity.

[0016] 2. In summer, while cooling, a small amount of free reheating can be used to achieve the dual goals of cooling and humidity control. At this time, the water loop is in a state of heat overflow, and the excess heat is transferred from the water loop to the integrated water loop multifunctional heat balancer and then discharged outdoors.

[0017] 3. In autumn and winter, while heating, the fresh air ratio and heating can be adjusted to achieve the dual goals of heating and humidity control by using dry fresh air for dehumidification. At this time, the water loop needs to be supplemented with heat, and the integrated water loop multifunctional heat balancer efficiently supplements the heat in the form of a heat pump.

[0018] 4. During spring dehumidification, the refrigerant-air heat exchanger cools down the air to remove moisture from the air, and the water-air heat exchanger raises the air temperature by heating, thereby achieving the air drying process. At this time, the integrated water loop multifunctional heat balancer performs heat balance on the water loop. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a connection relationship diagram of the present invention.

[0020] Explanation of reference numerals: 1 air handling unit, 1-1 air mixing section, 1-2 air filtering section, 1-3 refrigerant-air heat exchanger, 1-4 water-air heat exchanger, 1-5 fan, 2 compressor, 3 four-way valve, 4 gas-liquid separator, 5 high-pressure liquid storage tank, 6 refrigerant-water heat exchanger, 7-1 first expansion valve, 7-2 second expansion valve, 8-1 first check valve, 8-2 second check valve, 9-1 first water pipe electric regulating valve, 9-2 second water pipe electric regulating valve, 10-1 first air duct electric regulating valve, 10-2 second air duct electric regulating valve. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be clearly and completely described 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 the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0022] An integrated water loop multifunctional heat balancer is connected to a water loop water inlet pipe and a water loop water outlet pipe; it comprises an air handling unit 1, a compressor 2, a four-way valve 3, a gas-liquid separator 4, a high-pressure liquid storage device 5, a refrigerant-water heat exchanger 6, an expansion valve, a one-way valve, a water pipe electric regulating valve, and an air pipe electric regulating valve;

[0023] Wherein: the air handling unit 1 is divided into an air mixing section 1-1, an air filtering section 1-2, a refrigerant-air heat exchanger 1-3, a water-air heat exchanger 1-4, and a fan 1-5 arranged in sequence according to the wind direction; the air mixing section 1-1 is provided with a return air duct interface and a fresh air duct interface to connect the return air duct and the fresh air duct respectively; the return air duct interface is provided with a first air duct electric regulating valve 10-1, and the fresh air duct interface is provided with a second air duct electric regulating valve 10-2;

[0024] The outlet of the compressor 2 is connected to the first interface of the four-way valve 3;

[0025] The second interface of the four-way valve 3 is connected to the refrigerant-air heat exchanger 1-3 and then separated into a first branch pipe and a second branch pipe. The first branch pipe is connected to the first expansion valve 7-1 and then merged into the high-pressure liquid reservoir 5. The second branch pipe is connected to the second one-way valve 8-2 and then connected to the high-pressure liquid reservoir 5.

[0026] The third interface of the four-way valve 3 is connected to the refrigerant tube bundle 6-1 of the refrigerant-water heat exchanger 6, and then a third branch pipe and a fourth branch pipe are separated. The third branch pipe is connected to the second expansion valve 7-2 and then merged into the high-pressure liquid reservoir 5. The fourth branch pipe is connected to the first check valve 8-1 and then connected to the high-pressure liquid reservoir 5.

[0027] The fourth interface of the four-way valve 3 is connected to the gas-liquid separator 4, and then connected to the inlet of the compressor 2;

[0028] The water loop inlet pipe is divided into a first water inlet branch and a second water inlet branch, and the water loop outlet pipe is divided into a first water outlet branch and a second water outlet branch; the first water inlet branch is connected to the water-air heat exchanger 1-4, and after heat exchange, is connected to the first outlet pipe branch, and the first water pipe electric regulating valve 9-1 is arranged on the first outlet pipe branch;

[0029] The second water inlet branch is connected to the water tube bundle 6-2 of the refrigerant-water heat exchanger 6, and is connected to the second water outlet branch after heat exchange, and a second water pipe electric regulating valve 9-2 is arranged on the second water outlet branch.

[0030] In summary, when constructing a complete humidity control system, the present invention arranges a year-round humidity control air treatment device and an integrated water loop multifunctional heat balancer in series in a water loop, and uses a water pump to drive the water circulation. A year-round humidity control air treatment device is connected to the indoor space through an air duct to ensure the humidity of the indoor air, and the water loop is connected through a water pipe to inject the cold or heat generated in the process into the water loop. The integrated water loop multifunctional heat balancer maintains the thermal balance of the water loop through natural cooling, refrigeration-assisted cooling or heating mode.

[0031] The specific principles of the present invention are as follows:

[0032] The air handling unit 1 extracts fresh air and return air, which are mixed by the air mixing section 1-1 and filtered by the air filtering section. The air is then heat exchanged by the refrigerant-air heat exchanger 1-3 and the water-air heat exchanger 1-4, and finally pressurized by the fan 1-5 before being delivered to the service area.

[0033] It should be noted that:

[0034] There is only heat exchange between the refrigerant in the refrigerant-air heat exchanger 1-3 and the water-air heat exchanger 1-4 and the air flowing in the air handling unit 1, and there is no direct contact.

[0035] There is only heat exchange between the refrigerant tube bundle 6 - 1 and the water tube bundle 6 - 2 of the refrigerant-water heat exchanger 6 , and there is no direct contact.

[0036] The specific usage mode is as follows:

[0037] The present invention can realize three modes: cooling and humidity control, heating and humidity control, and dehumidification. The specific usage method is as follows:

[0038] (1) Refrigeration and humidity control mode

[0039] It usually occurs in summer. The air handling unit 1 draws fresh air and return air, which are mixed by the air mixing section 1-1 and filtered by the air filtering section. Then, they are cooled and dehumidified by the refrigerant-air heat exchanger 1-3, heated by the water-air heat exchanger 1-4, and finally pressurized by the fan 1-5 before being delivered to the service area.

[0040] The outlet of compressor 2 is connected to the third interface of the four-way valve 3 and connected to the refrigerant tube bundle 6-1. After condensation, it passes through the first one-way valve 8-1 and enters the high-pressure liquid storage tank 6. After throttling by the first expansion valve 7-1 and heat exchange by the refrigerant-air heat exchanger 1-3, it passes through the fourth interface of the four-way valve 3 and connects to the gas-liquid separator 4, and then connects to the inlet of compressor 2. The cooling capacity generated by this process is transferred to the air in the air handling unit 1 during the heat exchange process of the refrigerant-air heat exchanger 1-3, and the air is cooled and moisture is precipitated. The condensation heat generated by this process is transferred to the water tube bundle 6-2 by the refrigerant tube 6-1 bundle in the refrigerant-water heat exchanger 6. The water tube bundle 6-2 is connected to the second water inlet branch and the second water outlet branch, and the heat is transferred to the water loop through the water inlet and outlet processes.

[0041] The water-air heat exchanger 1-4 is connected to the first water inlet branch and the first water outlet branch, and takes heat from the water loop through the water inlet and water outlet processes.

[0042] At this time, the first water pipe electric regulating valve 9-1 and the second water pipe electric regulating valve 9-2 are opened.

[0043] The excess heat in the water loop is discharged outdoors through the water loop's heat dissipation equipment.

[0044] (2) Heating and humidity control mode

[0045] Generally, it occurs in autumn or winter. The air handling unit 1 extracts fresh air and return air, mixes them through the air mixing section 1-1, filters them through the air filtering section, heats them through the water-air heat exchanger 1-4, and finally pressurizes them through the fan 1-5 before delivering them to the service area. The first air duct electric regulating valve 10-1 and the second air duct electric regulating valve 10-2 at the connection between the fresh air duct and the return air duct are adjusted to ensure sufficient dry fresh air for dehumidification.

[0046] The water-air heat exchanger 1-4 is connected to the first water inlet branch and the first water outlet branch, and takes heat from the water loop through the water inlet and water outlet processes.

[0047] At this time, the first water pipe electric regulating valve 9-1 is opened and the second water pipe electric regulating valve 9-2 is closed.

[0048] The compressor outlet 2, four-way valve 3, gas-liquid separator 4, high-pressure liquid storage tank 5, refrigerant-water heat exchanger 6, expansion valve and one-way valve are not opened.

[0049] The water loop is supplemented with heat by the water loop's heat supplement equipment.

[0050] (3) Dehumidification

[0051] It usually occurs in spring. The air handling unit 1 draws fresh air and return air, which are mixed by the air mixing section 1-1 and filtered by the air filtering section. Then, they are cooled and dehumidified by the refrigerant-air heat exchanger 1-3, heated by the water-air heat exchanger 1-4, and finally pressurized by the fan 1-5 before being delivered to the service area.

[0052] The outlet of compressor 2 is connected to the third interface of the four-way valve 3 and connected to the refrigerant tube bundle 6-1. After condensation, it passes through the first one-way valve 8-1 and enters the high-pressure liquid storage tank 6. After throttling by the first expansion valve 7-1 and heat exchange by the refrigerant-air heat exchanger 1-3, it passes through the fourth interface of the four-way valve 3 and connects to the gas-liquid separator 4, and then connects to the inlet of compressor 2. The cooling capacity generated by this process is transferred to the air in the air handling unit 1 during the heat exchange process of the refrigerant-air heat exchanger 1-3, and the air is cooled and moisture is precipitated. The condensation heat generated by this process is transferred from the refrigerant tube bundle 6-1 to the water tube bundle 6-2 in the refrigerant-water heat exchanger 6. The water tube bundle 6-2 is connected to the second water inlet branch and the second water outlet branch, and the heat is transferred to the water loop through the water inlet and outlet processes.

[0053] The water-air heat exchanger 1-4 is connected to the first water inlet branch and the first water outlet branch, and takes heat from the water loop through the water inlet and water outlet processes.

[0054] At this time, the first water pipe electric regulating valve 9-1 and the second water pipe electric regulating valve 9-2 are opened.

[0055] The heat in the water loop is balanced by the heat dissipation equipment or heat supplement equipment of the water loop.

[0056] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A year-round humidity control air treatment device, characterized in that: The air handling unit (1) is connected to a water loop inlet pipe and a water loop outlet pipe; it includes an air handling unit (1), a compressor (2), a four-way valve (3), a gas-liquid separator (4), a high-pressure liquid storage device (5), a refrigerant-water heat exchanger (6), an expansion valve, a non-return valve, a water pipe electric regulating valve, and an air pipe electric regulating valve; Wherein: the air processing unit (1) is divided into an air mixing section (1-1), an air filtering section (1-2), a refrigerant-air heat exchanger (1-3), a water-air heat exchanger (1-4), and a fan (1-5) arranged in sequence according to the wind direction; the air mixing section (1-1) is provided with a return air duct interface and a fresh air duct interface to respectively connect the return air duct and the fresh air duct; the return air duct interface is provided with a first air duct electric regulating valve (10-1), and the fresh air duct interface is provided with a second air duct electric regulating valve (10-2); The outlet of the compressor (2) is connected to the first interface of the four-way valve (3); The second interface of the four-way valve (3) is connected to the refrigerant-air heat exchanger (1-3) and then separated into a first branch pipe and a second branch pipe, the first branch pipe is connected to the first expansion valve (7-1) and then merged into the high-pressure liquid storage tank (5), and the second branch pipe is connected to the second one-way valve (8-2) and then connected to the high-pressure liquid storage tank (5); The third interface of the four-way valve (3) is connected to the refrigerant tube bundle (6-1) of the refrigerant-water heat exchanger (6) and then a third branch pipe and a fourth branch pipe are separated. The third branch pipe is connected to the second expansion valve (7-2) and then merged into the high-pressure liquid storage tank (5). The fourth branch pipe is connected to the first non-return valve (8-1) and then connected to the high-pressure liquid storage tank (5). The fourth interface of the four-way valve (3) is connected to the gas-liquid separator (4), and then connected to the inlet of the compressor (2); The water loop inlet pipe is divided into a first water inlet branch and a second water inlet branch, and the water loop outlet pipe is divided into a first water outlet branch and a second water outlet branch; the first water inlet branch is connected to the water-air heat exchanger (1-4), and after heat exchange is connected to the first outlet pipe branch, and a first water pipe electric regulating valve (9-1) is provided on the first outlet pipe branch; The second water inlet branch is connected to the water tube bundle (6-2) of the refrigerant-water heat exchanger (6), and is connected to the second water outlet branch after heat exchange, and a second water pipe electric regulating valve (9-2) is provided on the second water outlet branch.

2. The year-round humidity control air treatment device according to claim 1, characterized in that: There is only heat exchange between the refrigerant in the refrigerant-air heat exchanger (1-3) and the water-air heat exchanger (1-4) and the air circulating in the air handling unit (1), and there is no direct contact.

3. The year-round humidity control air treatment device according to claim 1, characterized in that: There is only heat exchange between the refrigerant tube bundle (6-1) and the water tube bundle (6-2) of the refrigerant-water heat exchanger (6), and there is no direct contact.

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