阅读说明：本技术 一种基于水环热泵热源的溶液调湿新风机组 (Solution humidifying fresh air handling unit based on water-ring heat pump heat source ) 是由 尚昱霖 李悦 雷勇 于 2021-09-24 设计创作，主要内容包括：本发明涉及溶液调湿技术领域,具体公开了一种基于水环热泵热源的溶液调湿新风机组,包括第一风道腔体、第二风道腔体以及水环热泵,所述第一风道腔体中设置有第一换热盘管、第一热湿交换单元、第一风机,第二风道腔体中设置有第二换热盘管、第二热湿交换单元、第二风机,所述第一换热盘管、第二换热盘管分别与水环热泵形成闭合回路；所述第一热湿交换单元连接有第一储液单元和第一板式换热器,且三者形成闭合回路；所述第二热湿交换单元连接有第二储液单元和第二板式换热器,且三者形成闭合回路；所述第一板式换热器、第二板式换热器分别与水环热泵形成闭合回路；本发明能够降低机组能耗、提高机组换热效率,便于安装及检修。(The invention relates to the technical field of solution humidity control, and particularly discloses a solution humidity control fresh air handling unit based on a water-loop heat pump heat source, which comprises a first air duct cavity, a second air duct cavity and a water-loop heat pump, wherein a first heat exchange coil, a first heat and humidity exchange unit and a first fan are arranged in the first air duct cavity, a second heat exchange coil, a second heat and humidity exchange unit and a second fan are arranged in the second air duct cavity, and the first heat exchange coil and the second heat exchange coil form a closed loop with the water-loop heat pump respectively; the first heat and moisture exchange unit is connected with a first liquid storage unit and a first plate heat exchanger, and the first liquid storage unit, the first plate heat exchanger and the first liquid storage unit form a closed loop; the second heat and moisture exchange unit is connected with a second liquid storage unit and a second plate heat exchanger, and the second liquid storage unit, the second plate heat exchanger and the second liquid storage unit form a closed loop; the first plate heat exchanger and the second plate heat exchanger form a closed loop with the water-ring heat pump respectively; the invention can reduce the energy consumption of the unit, improve the heat exchange efficiency of the unit and facilitate the installation and the maintenance.)

1. The utility model provides a solution humidifying fresh air handling unit based on water ring heat pump heat source which characterized in that: the air conditioner comprises a first air channel cavity, a second air channel cavity and a water-ring heat pump (7), wherein a first heat exchange coil (1), a first heat and humidity exchange unit (2) and a first fan (3) are arranged in the first air channel cavity, a second heat exchange coil (4), a second heat and humidity exchange unit (5) and a second fan (6) are arranged in the second air channel cavity, and the first heat exchange coil (1) and the second heat exchange coil (4) respectively form a closed loop with the water-ring heat pump (7); the first heat and moisture exchange unit (2) is connected with a first liquid storage unit (8) and a first plate type heat exchanger (10) to form a closed loop; the second heat and moisture exchange unit (5) is connected with a second liquid storage unit (9) and a second plate heat exchanger (11) to form a closed loop; the first plate heat exchanger (10) and the second plate heat exchanger (11) form a closed loop with the water ring heat pump (7) respectively.

2. The solution humidifying fresh air handling unit based on the water loop heat pump heat source as claimed in claim 1, characterized in that: a first solution circulating pump (12) is arranged on a pipeline between the first liquid storage unit (8) and the first plate heat exchanger (10), and a second solution circulating pump (13) is arranged on a pipeline between the second liquid storage unit (9) and the second plate heat exchanger (11).

3. The solution humidifying fresh air handling unit based on the water loop heat pump heat source as claimed in claim 2, characterized in that: and a branch pipe is arranged on a pipeline between the first solution circulating pump (12) and the first plate heat exchanger (10), the branch pipe is connected with the second liquid storage unit (9), and a solution regeneration control device (16) is arranged on the branch pipe.

4. The solution humidifying fresh air handling unit based on the water loop heat pump heat source as claimed in claim 1, characterized in that: the first heat exchange coil (1) and the first plate heat exchanger (10) share two interfaces on the water ring heat pump (7); the heat exchanger comprises a water ring heat pump (7), a first heat exchange circulating pump (14) and a first pressure difference bypass valve (19), wherein the first heat exchange circulating pump is arranged on a shared pipeline outside a connector of the water ring heat pump (7), the first pressure difference bypass valve (19) is arranged between the two connectors, a communication switch valve (18) is arranged in an independent pipeline of a first heat exchange coil (1), and a first electric two-way valve (17) is arranged in an independent pipeline of a first plate type heat exchanger (10).

5. The solution humidifying fresh air handling unit based on the water loop heat pump heat source as claimed in claim 1, characterized in that: the second heat exchange coil (4) and the second plate heat exchanger (11) share two interfaces on the water ring heat pump (7); the heat exchanger comprises a water ring heat pump (7), a first heat exchange circulating pump (15), a first differential pressure bypass valve (20), a first electric two-way valve (22), a second plate heat exchanger (11), a second electric two-way valve (21) and a third heat exchange coil (4), wherein the first heat exchange circulating pump and the second heat exchange circulating pump are arranged on a shared pipeline outside a connector of the water ring heat pump (7), the second differential pressure bypass valve (20) is arranged between the connector of the water ring heat pump and the connector of the water ring heat pump, the third electric two-way valve (22) is arranged in an independent pipeline of the second heat exchange coil (4), and the second electric two-way valve (21) is arranged in an independent pipeline of the second plate heat exchanger (11).

6. The solution humidifying fresh air handling unit based on the water loop heat pump heat source as claimed in claim 1, characterized in that: the first liquid storage unit (8) and the second liquid storage unit (9) are connected through a pipeline, and a fourth electric two-way valve (23) is arranged on the pipeline.

Technical Field

The invention relates to the technical field of solution humidifying, in particular to a solution humidifying fresh air handling unit based on a water ring heat pump heat source.

Background

With the progress and development of society, people have higher requirements on indoor air quality and comfort level of a hot and humid environment, the traditional refrigeration dehumidification has the problems of cold and heat offset, dehumidification only and no humidification, and the like, many researchers gradually turn to the research of a solution humidity conditioning technology, the technology adopts a salt solution with humidity conditioning (dehumidification and humidification are collectively called humidity conditioning) function as a medium, such as lithium bromide, lithium chloride or calcium chloride, and other salt solutions to regulate the humidity of air, can utilize a low-grade heat source and can remove dust, bacteria and mold in the air, and the air quality and the comfort level of the hot and humid environment are greatly improved. The conventional solution humidifying unit generally adopts a voltage-produced cold machine or a heat pump as a heat source for solution regeneration.

In the prior art, the regeneration process of a salt solution is mainly realized through a built-in heat pump or an electric compression refrigerator, a concentrated solution pipeline is connected with an evaporator of the compression refrigerator for heat exchange, the dehumidification function of the concentrated solution is realized, and a dilute solution pipeline is connected with a condenser of the compression refrigerator for heat exchange, so that the solution regeneration process is realized. The solution dehumidification unit with the built-in heat pump or electric compressor can realize the regeneration of the solution, so that the system can continuously regulate the humidity. In the technology, condensation heat generated by a compression refrigerator or a heat pump is used for providing heat required by solution regeneration, and generated cold is used for providing cold required by fresh air dehumidification. There are also the following disadvantages:

1. in order to realize solution regeneration, the compressor needs to be started all the time, so that the energy consumption is large;

2. because the system continuously operates, the problem that the heat required by solution regeneration and the cold required by solution dehumidification are unbalanced exists, and the excessive condensation heat cannot be removed;

solution regeneration and solution humidity conditioning circulation exchange heat with components of a compression refrigerating machine, the system layout is limited by a compression refrigeration circulation pipeline, and the equipment pipeline is complex, the maintenance space is narrow and difficult to maintain.

Disclosure of Invention

The invention aims to provide a solution humidifying fresh air handling unit based on a water loop heat pump heat source, and aims to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: a solution humidifying fresh air handling unit based on a water-loop heat pump heat source comprises a first air channel cavity, a second air channel cavity and a water-loop heat pump, wherein a first heat exchange coil, a first heat and humidity exchange unit and a first fan are arranged in the first air channel cavity, a second heat exchange coil, a second heat and humidity exchange unit and a second fan are arranged in the second air channel cavity, and the first heat exchange coil and the second heat exchange coil form a closed loop with the water-loop heat pump respectively; the first heat and moisture exchange unit is connected with a first liquid storage unit and a first plate heat exchanger, and the first liquid storage unit, the first plate heat exchanger and the first liquid storage unit form a closed loop; the second heat and moisture exchange unit is connected with a second liquid storage unit and a second plate heat exchanger, and the second liquid storage unit, the second plate heat exchanger and the second liquid storage unit form a closed loop; the first plate heat exchanger and the second plate heat exchanger form a closed loop with the water-ring heat pump respectively.

Preferably, a first solution circulating pump is arranged on a pipeline between the first liquid storage unit and the first plate heat exchanger, and a second solution circulating pump is arranged on a pipeline between the second liquid storage unit and the second plate heat exchanger.

Preferably, a branch pipe is arranged on a pipeline between the first solution circulating pump and the first plate heat exchanger, the branch pipe is connected with the second liquid storage unit, and a solution regeneration control device is arranged on the branch pipe.

Preferably, the first heat exchange coil and the first plate heat exchanger share two interfaces on the water-ring heat pump; the first heat exchange circulating pump is arranged on a shared pipeline outside the water ring heat pump interfaces, the first pressure difference bypass valve is arranged between the two interfaces, the communicating switch valve is arranged in the independent pipeline of the first heat exchange coil, and the first electric two-way valve is arranged in the independent pipeline of the first plate heat exchanger.

Preferably, the second heat exchange coil and the second plate heat exchanger share two interfaces on the water-ring heat pump; the second heat exchange circulating pump is arranged on a shared pipeline outside the water ring heat pump interfaces, the second differential pressure bypass valve is arranged between the two interfaces, the third electric two-way valve is arranged in an independent pipeline of the second heat exchange coil, and the second electric two-way valve is arranged in an independent pipeline of the second plate heat exchanger.

Preferably, the first liquid storage unit and the second liquid storage unit are connected through a pipeline, and a fourth electric two-way valve is arranged on the pipeline.

Compared with the prior art, the invention has the beneficial effects that:

1. the heat source required by solution regeneration adopts a water loop heat pump mode, solution regeneration and solution humidity regulation are realized by utilizing water path circulation, the heat exchange coil is additionally arranged at the front end of the solution regeneration to consume excessive condensation heat, and the excessive cold energy is consumed by the first heat exchange coil at the other side, so that the problems that the condensation heat required by the solution regeneration is not matched with and is not synchronous with the cold energy required by the solution humidity regulation can be effectively solved, the heat utilization efficiency of a unit is improved, and the energy consumption of the unit is reduced;

2. the systems are circulated through a water path, and only simple interfaces are needed for connection on site, so that the complexity of system pipelines is reduced, and the field maintenance is facilitated;

3. the water supply temperature of the chilled water of the machine room can be improved, so that the energy efficiency of the refrigerating unit on the machine room side is improved, and the energy consumption of the system is greatly reduced.

Drawings

FIG. 1 is a schematic structural view of the present invention;

reference numbers in the figures: 1. a first heat exchange coil; 2. a first heat and moisture exchange unit; 3. a first fan; 4. a second heat exchange coil; 5. a second heat and moisture exchange unit; 6. a second fan; 7. a water-ring heat pump; 8. a first liquid storage unit; 9. a second liquid storage unit; 10. a first plate heat exchanger; 11. a second plate heat exchanger; 12. a first solution circulating pump; 13. a second solution circulating pump; 14. a first heat exchange circulating pump; 15. a second heat exchange circulating pump; 16. a solution regeneration control device; 17. a first electrically powered two-way valve; 18. a communicating switch valve; 19. a first differential pressure bypass valve; 20. a second differential pressure bypass valve; 21. a second electrically powered two-way valve; 22. a third electrically powered two-way valve; 23. a fourth electrically powered two way valve.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Referring to fig. 1, the present invention provides a technical solution: a solution humidifying fresh air handling unit based on a water-loop heat pump heat source comprises a first air channel cavity, a second air channel cavity and a water-loop heat pump 7, wherein a first heat exchange coil 1, a first heat and humidity exchange unit 2 and a first fan 3 are arranged in the first air channel cavity, a second heat exchange coil 4, a second heat and humidity exchange unit 5 and a second fan 6 are arranged in the second air channel cavity, and the first heat exchange coil 1 and the second heat exchange coil 4 respectively form a closed loop with the water-loop heat pump 7; the first heat and moisture exchange unit 2 is connected with a first liquid storage unit 8 and a first plate heat exchanger 10, and the first liquid storage unit 8, the first plate heat exchanger 10 and the first plate heat exchanger form a closed loop; the second heat and moisture exchange unit 5 is connected with a second liquid storage unit 9 and a second plate heat exchanger 11 which form a closed loop; the first plate heat exchanger 10 and the second plate heat exchanger 11 form a closed loop with the water-ring heat pump 7 respectively.

Further, a first solution circulating pump 12 is arranged on a pipeline between the first liquid storage unit 8 and the first plate heat exchanger 10, and a second solution circulating pump 13 is arranged on a pipeline between the second liquid storage unit 9 and the second plate heat exchanger 11.

Furthermore, a branch pipe is arranged on a pipeline between the first solution circulating pump 12 and the first plate heat exchanger 10, the branch pipe is connected with the second liquid storage unit 9, and a solution regeneration control device 16 is arranged on the branch pipe.

Further, the first heat exchange coil 1 and the first plate heat exchanger 10 share two interfaces on the water-ring heat pump 7; a first heat exchange circulating pump 14 is arranged on a shared pipeline outside a joint of the water-ring heat pump 7, a first pressure difference bypass valve 19 is arranged between the two joints, a communicating switch valve 18 is arranged in an independent pipeline of the first heat exchange coil 1, and a first electric two-way valve 17 is arranged in an independent pipeline of the first plate heat exchanger 10.

Further, the second heat exchange coil 4 and the second plate heat exchanger 11 share two interfaces on the water-ring heat pump 7; a second heat exchange circulating pump 15 is arranged on a shared pipeline outside the joint of the water ring heat pump 7, a second differential pressure bypass valve 20 is arranged between the two joints, a third electric two-way valve 22 is arranged in an independent pipeline of the second heat exchange coil 4, and a second electric two-way valve 21 is arranged in an independent pipeline of the second plate heat exchanger 11.

Further, the first liquid storage unit 8 and the second liquid storage unit 9 are connected through a pipeline, and a fourth electric two-way valve 23 is arranged on the pipeline.

The working principle is as follows: in summer, the water-ring heat pump 7 is started: the method is specifically divided into a solution regeneration cycle and a solution dehumidification cycle. Wherein the solution regeneration cycle is: the concentrated solution flows through the second solution circulating pump 13, the second plate heat exchange unit 11, the first heat and humidity exchange unit 5 from the second solution storage unit 9 in sequence, and then returns to the second solution storage unit 9. The solution dehumidification cycle is as follows: the dilute solution flows through the first solution circulating pump 12, the first plate heat exchange unit 10 and the second heat and humidity exchange unit 2 from the first solution storage unit 8 in sequence, and then flows back to the first solution storage unit 8.

The circulation of the water-ring heat pump 7 is divided into: a water-loop heat pump 7 is connected with a first plate type heat exchange unit 10 and then connected with a first heat exchange circulating pump 14 and the water-loop heat pump 7 to form a complete loop, and meanwhile, the water-loop heat pump 7 is connected with a second heat exchange coil 4 to form a closed loop. The two-water-loop heat pump 7 is connected with a second heat exchange circulating pump 15, then connected with a second plate type heat exchange unit 11 and finally connected with the water-loop heat pump 7 to form a complete loop; meanwhile, the water-loop heat pump 7 is connected with the first heat exchange coil 1 to form a closed loop. The machine room water supply and return are respectively connected with the first heat exchange coil 1 and the first plate type heat exchange unit 10.

Winter conditions, as opposed to summer conditions.

The pipeline is provided with a first solution circulating pump 12, a second solution circulating pump 13, a first heat exchange circulating pump 14 and a second heat exchange circulating pump 15 to increase the flowing power of liquid in the corresponding pipeline, and a first electric two-way valve 17, a communication switch valve 18, a first differential pressure bypass valve 19, a second differential pressure bypass valve 20, a second electric two-way valve 21, a third electric two-way valve 22 and a fourth electric two-way valve 23 are arranged to manage the opening and closing of the pipeline.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.