CN215176803U - Heat recovery heat pump dehumidification system - Google Patents
Heat recovery heat pump dehumidification system Download PDFInfo
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- CN215176803U CN215176803U CN202120942885.2U CN202120942885U CN215176803U CN 215176803 U CN215176803 U CN 215176803U CN 202120942885 U CN202120942885 U CN 202120942885U CN 215176803 U CN215176803 U CN 215176803U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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Abstract
The utility model discloses a heat recovery heat pump dehumidification system, operation heat pump set, high-temperature gas in the first baking house gets into the second heat transfer passageway after through first return air inlet, gets back to in the first baking house by first air outlet, and low temperature gas in the second baking house gets back to in the second baking house by the second air outlet after getting into first heat transfer passageway through the second return air inlet. During the period, the high-temperature gas in the first drying room releases heat to be cooled, and the low-temperature gas in the second drying room absorbs heat to be heated. This technical scheme's heat recovery heat pump dehumidification system, it when dehumidifying to one of them baking house, can be used for drying another baking house with the heat that the dehumidification process produced, can abundant, high-efficient waste heat utilization, resources are saved.
Description
Technical Field
The utility model is used for drying and dehumidification technical field especially relates to a heat recovery heat pump dehumidification system.
Background
The heat pump dehumidification process generally refers to a process in which air flow in a drying room exchanges heat with a refrigerant to release heat when flowing through an evaporator of a heat pump system, and when the temperature is reduced below a dew point, water vapor in the air is condensed into water to be separated out and dropped into a water collecting tray to be discharged. The dehumidification process is also a process of releasing "sensible heat and latent heat" from the water vapor, and the released heat is often much because the latent heat of the water vapor is very large. The heat is mainly used for heating circulating air flow, so that the temperature in the drying room is rapidly increased, the heat loss is small, and the energy-saving effect is good.
The existing heat pump drying technology, especially the middle and later period dehumidification in the drying process, has the defects that the dehumidification efficiency is obviously reduced, and the running efficiency of a unit is low and the energy consumption is high along with the high temperature and high pressure of a heat pump refrigerant circulating system. At the moment, the redundant heat of the drying room has to be dissipated, otherwise, the dehumidification is difficult to continue, and even the heat pump system cannot be normally carried out. The common way to solve this problem is to take away the excess heat released during the dehumidification process with fresh or cold water. Therefore, the dehumidification process is inevitably accompanied by waste of heat.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to solve one of the technical problem that exists among the prior art at least, provide a heat recovery heat pump dehumidification system, when it dehumidifies one of them baking house, can be used for drying another baking house with the heat that the dehumidification process produced, can be abundant, high-efficient utilization waste heat, resources are saved.
The utility model provides a technical scheme that its technical problem adopted is:
a heat recovery heat pump dehumidification system, comprising:
the working chamber comprises a first working chamber and a second working chamber, the first working chamber is provided with a first air return opening, a second air return opening and a first air outlet, the second working chamber is provided with a second air outlet, the first air return opening and the first air outlet are both used for being communicated with the first drying room, and the second air return opening and the second air outlet are both used for being communicated with the second drying room;
the heat pump unit comprises a three-way reversing valve, a first heat exchange part, a compressor, a second heat exchange part and a throttling part which are sequentially connected through a refrigerant pipeline to form a refrigerant loop, wherein the first heat exchange part comprises a third heat exchange part and a fourth heat exchange part which are arranged in parallel through the refrigerant pipeline, the third heat exchange part and the fourth heat exchange part are connected with the compressor through the three-way reversing valve, the third heat exchange part is positioned at a first outlet, and the fourth heat exchange part is positioned at a second outlet;
the gas heat exchanger comprises a first gas heat exchanger and a second gas heat exchanger which are positioned in the first working chamber, the first gas heat exchanger forms a first air duct and a second air duct in the first working chamber, the first working chamber is communicated with the second working chamber, the second air return opening, the first air duct and the second air outlet are sequentially communicated to form a first heat exchange channel, the second gas heat exchanger forms a third air duct and a fourth air duct in the first working chamber, the first air return opening, the second air duct, the third air duct, the fourth air duct and the first air outlet are sequentially communicated to form a second heat exchange channel, and the second heat exchange part is positioned in the second heat exchange channel and between the third air duct and the fourth air duct;
and the fan comprises a first fan and a second fan, the first fan is positioned at the first air outlet, and the second fan is positioned at the second air outlet.
In combination with the foregoing implementation manner, in certain implementation manners of the present invention, the second working chamber is further provided with a third air return opening, and the third air return opening is used for communicating with the second drying room.
In combination with the above implementation manner, the utility model discloses an in some implementation manners, first return air inlet, second return air inlet and third return air inlet department all are equipped with the filter screen.
In combination with the above implementation manner, the utility model discloses an in some implementation manners, first return air inlet, second return air inlet and third return air inlet department all are equipped with the third fan, the exit in first wind channel is equipped with the fourth fan.
In combination with the foregoing implementation manner, the utility model discloses an in some implementation manners, first fan, second fan, third fan and fourth fan all include the frequency conversion fan.
In combination with the foregoing implementation manner, in certain implementation manners of the present invention, the first gas heat exchanger and the second gas heat exchanger all include a dividing wall type heat exchanger or a heat pipe heat exchanger.
In combination with the above implementation manner, in some implementation manners of the present invention, the first air outlet is provided with an auxiliary heating device.
In combination with the foregoing implementation manner, in certain implementation manners of the present invention, the compressor has an exhaust port, and the three interfaces of the three-way reversing valve correspond to the third heat exchange component, the fourth heat exchange component and the exhaust port.
In combination with the above implementation manner, in certain implementation manners of the present invention, the bottom of the second heat exchange component and the second gas heat exchanger is provided with a condensed water collecting device.
In combination with the above implementation, in certain implementations of the present invention, the compressor, the throttling part, and the condensed water collecting device are all located in the first working chamber.
One of the above technical solutions has at least one of the following advantages or beneficial effects: and (4) operating the heat pump unit, enabling high-temperature gas in the first drying room to return to the first drying room through the first air outlet after entering the second heat exchange channel through the first air return opening, and enabling low-temperature gas in the second drying room to return to the second drying room through the second air outlet after entering the first heat exchange channel through the second air return opening. During the period, the high-temperature gas in the first drying room releases heat to be cooled, and the low-temperature gas in the second drying room absorbs heat to be heated. This technical scheme's heat recovery heat pump dehumidification system, it when dehumidifying to one of them baking house, can be used for drying another baking house with the heat that the dehumidification process produced, can abundant, high-efficient waste heat utilization, resources are saved.
Drawings
The present invention will be further explained with reference to the accompanying drawings:
fig. 1 is a schematic structural view of a second gas heat exchange component of an embodiment of the present invention, which is a dividing wall type heat exchanger;
FIG. 2 is a schematic view of the embodiment of FIG. 1 in use with only the first return air inlet return air;
FIG. 3 is a schematic view of the embodiment of FIG. 1 in use with only the first return air inlet and the second return air inlet returning air;
FIG. 4 is a schematic view of the connection of the embodiment of FIG. 1 with only the first return air inlet and the third return air inlet returning air;
fig. 5 is a schematic structural diagram of a second gas heat exchange component according to an embodiment of the present invention.
Detailed Description
This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.
In the present invention, if there is a description of directions (up, down, left, right, front and back), it is only for convenience of description of the technical solution of the present invention, and it is not intended to indicate or imply that the technical features indicated must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
In the utility model, the meaning of a plurality of is one or more, the meaning of a plurality of is more than two, and the meaning of more than two is understood as not including the number; the terms "above", "below", "within" and the like are understood to include the instant numbers. In the description of the present invention, if there is any description of "first" and "second" only for the purpose of distinguishing technical features, it is not to be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the precedence of the indicated technical features.
In the present invention, unless otherwise explicitly defined, the terms "set", "install", "connect", and the like are to be understood in a broad sense, and for example, may be directly connected or may be indirectly connected through an intermediate medium; can be fixedly connected, can also be detachably connected and can also be integrally formed; may be mechanically coupled, may be electrically coupled or may be capable of communicating with each other; either as communication within the two elements or as an interactive relationship of the two elements. The technical skill in the art can reasonably determine the specific meaning of the above words in the present invention by combining the specific contents of the technical solution.
Referring to fig. 1 and 2, an embodiment of the present invention provides a heat recovery heat pump dehumidification system, including a working chamber, a heat pump unit, a gas heat exchanger and a fan. The working chamber comprises a first working chamber 11 and a second working chamber 12, the first working chamber 11 is provided with a first air return opening 31, a second air return opening 32 and a first air outlet 41, the second working chamber 12 is provided with a second air outlet 42, the first air return opening 31 and the first air outlet 41 are both used for being communicated with the first drying room 21, and the second air return opening 32 and the second air outlet 42 are both used for being communicated with the second drying room 22.
The heat pump unit comprises a three-way reversing valve 5, a first heat exchange part, a compressor 61, a second heat exchange part 62 and a throttling part 63 which are sequentially connected through a refrigerant pipeline to form a refrigerant loop, the first heat exchange part comprises a third heat exchange part 64 and a fourth heat exchange part 65 which are arranged in parallel through the refrigerant pipeline, the third heat exchange part 64 and the fourth heat exchange part 65 are connected with the compressor 61 through the three-way reversing valve 5, the third heat exchange part 64 is located at a first outlet 41, and the fourth heat exchange part 65 is located at a second air outlet 32. The three-way reversing valve 5 ensures that the third heat exchange component 64 and the fourth heat exchange component 65 are interlocked, namely, when any one of the third heat exchange component 64 and the fourth heat exchange component 65 is switched on, the other heat exchange component must be switched off.
The gas heat exchanger comprises a first gas heat exchanger 71 and a second gas heat exchanger 72 which are positioned in a first working chamber 11, the first gas heat exchanger 71 forms a first air duct and a second air duct in the first working chamber 11, the first working chamber 11 is communicated with a second working chamber 12, a second air return opening 32, the first air duct and a second air outlet 42 are sequentially communicated to form a first heat exchange channel, the second gas heat exchanger 72 forms a third air duct and a fourth air duct in the first working chamber 11, the first air return opening 31, the second air duct, the third air duct, the fourth air duct and the first air outlet 41 are sequentially communicated to form a second heat exchange channel, and a second heat exchange part 62 is positioned in the second heat exchange channel and positioned between the third air duct and the fourth air duct, see fig. 1 and 5.
The high-temperature gas in the first drying room 21 releases heat when passing through the second air channel of the first gas heat exchanger 71, and the low-temperature gas in the second drying room 22 absorbs heat when passing through the first air channel of the first gas heat exchanger 71, so as to carry out heat exchange, so that the gas in the second drying room 22 can be heated; the air in the first drying room 21 continues to flow through the third air duct of the second air heat exchanger 72 and the second heat exchanging part 62, and heat is released, so that the damp and hot air in the first drying room 21 can be cooled.
The fans include a first fan 81 and a second fan 82, the first fan 81 is positioned at the first air outlet 41 to introduce the air in the first working chamber 11 to the first drying room 21; a second fan 82 is located at the second air outlet 42 to direct air from the second working chamber 12 into the second drying room.
When the air in the first drying room 21 is in a high humidity and high heat state, the difficulty of evaporation and dehumidification is increased, and the heat dissipation is needed to reduce the air temperature, so that the continuous dehumidification can be ensured. Referring to fig. 3, when the heat pump unit is operated, the high-temperature gas in the first drying room 21 enters the second heat exchange channel through the first air return opening 31 and then returns to the first drying room 21 through the first air outlet 41, and the low-temperature gas in the second drying room 22 enters the first heat exchange channel through the second air return opening 32 and then returns to the second drying room 22 through the second air outlet 42. Meanwhile, the high temperature air in the first drying room 21 releases heat to be cooled down, and the low temperature air in the second drying room 22 absorbs heat to be heated. This technical scheme's heat recovery heat pump dehumidification system, it when dehumidifying to one of them baking house, can be used for drying another baking house with the heat that the dehumidification process produced, can abundant, high-efficient waste heat utilization, resources are saved. It can be understood that in practical application, the number of the heat recovery heat pump dehumidification systems can be set according to the number of the drying rooms, and when the number of the drying rooms is N +1, the number of the heat recovery heat pump dehumidification systems is N, so that the heat released in the dehumidification stage of one drying room in two adjacent drying rooms can be used for heating the other drying room. A plurality of drying rooms can be connected in series, and can also be sequentially connected end to form a closed loop structure, so that the heat of each drying room is fully utilized.
Referring to fig. 1 and 4, in some embodiments, the second working chamber 12 is further provided with a third air return opening 33, and the third air return opening 33 is used for communicating with the second drying room 22. When the fourth heat exchanging part 65 is connected, the air in the second drying room 22 can enter the second working chamber 12 through the third air returning opening 33, and after absorbing the heat of the fourth heat exchanging part 65, the air flows back to the second drying room through the second air outlet 42.
Referring to fig. 1 and 5, in some embodiments, the compressor 61 has a gas outlet 611, and three ports of the three-way reversing valve 5 are correspondingly connected with the third heat exchange component 64, the fourth heat exchange component 65 and the gas outlet 611, so as to ensure that an interlocking state is formed between the third heat exchange component 64 and the fourth heat exchange component 65.
Referring to fig. 1 and 5, in some embodiments, the first air return opening 31, the second air return opening 32 and the third air return opening 33 are provided with the filter screens 30, so that foreign matters such as dust, drying materials or insects and mice can be prevented from entering the heat pump dehumidification system, and the service life of the heat pump dehumidification system is prolonged.
In some embodiments, a third fan (not labeled) is disposed at each of the first air return opening 31, the second air return opening 32 and the third air return opening 33, and a fourth fan 83 is disposed at the outlet of the first air duct, as shown in fig. 1, so as to facilitate the introduction of the air at the second air return opening 32 into the second working chamber 12 through the first air duct.
In some embodiments, the first fan 81, the second fan 82, the third fan and the fourth fan 83 all include variable frequency fans, so that the wind speed can be regulated and controlled in real time according to the drying requirement, and the applicability is strong.
Referring to fig. 1 and 5, in some embodiments, the first gas heat exchanger 71 and the second gas heat exchanger 72 each comprise a dividing wall type heat exchanger or a heat pipe heat exchanger, which can achieve efficient heat exchange. Wherein, the concrete type of gas heat exchanger can set up according to actual need.
Referring to fig. 1 and 5, in some embodiments, the first air outlet 41 is provided with an auxiliary heating device 91, which can heat the air entering the first drying room 21 from the first air return opening 31 according to the drying requirement of the first drying room 21, so as to meet the temperature requirement of the drying stages in different stages. The auxiliary heating device 91 includes a heat pipe heater, an electromagnetic heater, or the like.
Referring to fig. 1 and 5, in some embodiments, the bottoms of the second heat exchanging part 62 and the second gas heat exchanger 72 are provided with a condensed water collecting device 92, so as to collect condensed water formed by condensation of the gas during heat exchange at the second heat exchanging part 62 and the second gas heat exchanger 72, and avoid water accumulation inside the heat pump dehumidification system.
Referring to fig. 1 and 5, in some embodiments, the compressor 61, the throttling part 63 and the condensed water collecting device 92 are all located in the first working chamber 11, so that the compressor 61, the throttling part 63 and the condensed water collecting device 92 are integrated in the first working chamber 11, and the spatial layout is optimized.
Specifically, when the first drying room 21 is in the preheating stage, the temperature of the material is increased along with the accelerated evaporation of the moisture, and the evaporation process needs to absorb more heat. At this time, the heating may be performed by an additional heat source, or by using heat released from a dehumidification process of another drying room.
When the first drying room 21 is in the constant temperature dehumidification stage, the heat absorption process continues as the moisture continues to evaporate. Referring to fig. 2, the heat pump unit is operated and communicated with the third heat exchange part 64, the first fan 81 and the third fan at the first air return opening 31 are operated, the second fan 82, the fourth fan 83 and the third fans at the second air return opening 32 and the third air return opening 33 are stopped, and at this time, only the first drying room 21 is heated.
When first baking house 21 is in the heat dissipation dehumidification stage, material moisture evaporation capacity is great, and the inside gas of first baking house 21 is in high wet high hot state, and the evaporation dehumidification degree of difficulty increases, need dispel the heat in order to reduce gas temperature, can continuously carry out dehumidification work. Referring to fig. 3, the heat pump unit is operated and communicated with the third heat exchanging part 64, the first fan 81, the second fan 82 and the third fans at the first return air inlet 31 and the second return air inlet 32 are operated, and the fourth fan 83 and the third fans at the third return air inlet 33 are stopped. At this time, the damp-heat air in the first drying room 21 flows through the second heat exchange channel to release heat for cooling, and the damp-heat air in the second drying room 22 flows through the first heat exchange channel to absorb heat for heating.
When the first drying room 21 is converted from the heat dissipation dehumidification stage to the evaporation dehumidification stage, the water vapor in the first drying room 21 is continuously condensed, and the latent heat of the water vapor is used for maintaining the temperature of the first drying room 21 on one hand and preheating the air and the materials in the second drying room 22 on the other hand. As the dehumidification process continues, the temperature difference between the first drying room 21 and the second drying room 22 gradually decreases, so that the heat exchange efficiency of the third heat exchange part 64 is reduced. Referring to fig. 4, the three-way reversing valve 5 is switched and communicated with the fourth heat exchange part 65, the third fan, the first fan 81 and the second fan 82 at the first air return port 31 and the third air return port 33 are operated, the third fan at the second air return port 32 is stopped, all or part of heat absorbed by the refrigerant at the second heat exchange part 62 is released to the gas entering the second working chamber 12 from the third air return port 33 and then flowing back to the second drying room 22 through the fourth heat exchange part 65, and the heat released by the evaporation and dehumidification of the first drying room 21 can be continuously used for heating the gas in the second drying room 22.
In the description herein, references to the description of the term "example," "an embodiment," or "some embodiments," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The invention is not limited to the above embodiments, and those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of the invention, and such equivalent modifications or substitutions are included in the scope defined by the claims of the present application.
Claims (10)
1. A heat recovery heat pump dehumidification system, comprising:
the working chamber comprises a first working chamber and a second working chamber, the first working chamber is provided with a first air return opening, a second air return opening and a first air outlet, the second working chamber is provided with a second air outlet, the first air return opening and the first air outlet are both used for being communicated with the first drying room, and the second air return opening and the second air outlet are both used for being communicated with the second drying room;
the heat pump unit comprises a three-way reversing valve, a first heat exchange part, a compressor, a second heat exchange part and a throttling part which are sequentially connected through a refrigerant pipeline to form a refrigerant loop, wherein the first heat exchange part comprises a third heat exchange part and a fourth heat exchange part which are arranged in parallel through the refrigerant pipeline, the third heat exchange part and the fourth heat exchange part are connected with the compressor through the three-way reversing valve, the third heat exchange part is positioned at a first air outlet, and the fourth heat exchange part is positioned at a second air outlet;
the gas heat exchanger comprises a first gas heat exchanger and a second gas heat exchanger which are positioned in the first working chamber, the first gas heat exchanger forms a first air duct and a second air duct in the first working chamber, the first working chamber is communicated with the second working chamber, the second air return opening, the first air duct and the second air outlet are sequentially communicated to form a first heat exchange channel, the second gas heat exchanger forms a third air duct and a fourth air duct in the first working chamber, the first air return opening, the second air duct, the third air duct, the fourth air duct and the first air outlet are sequentially communicated to form a second heat exchange channel, and the second heat exchange part is positioned in the second heat exchange channel and between the third air duct and the fourth air duct;
and the fan comprises a first fan and a second fan, the first fan is positioned at the first air outlet, and the second fan is positioned at the second air outlet.
2. The heat recovery heat pump dehumidification system of claim 1, wherein said second working chamber is further provided with a third air return opening for communication with said second drying room.
3. The heat recovery heat pump dehumidification system of claim 2, wherein a screen is disposed at each of the first return air inlet, the second return air inlet, and the third return air inlet.
4. The heat recovery heat pump dehumidification system of claim 2, wherein a third fan is disposed at each of the first return air inlet, the second return air inlet and the third return air inlet, and a fourth fan is disposed at an outlet of the first air duct.
5. The heat recovery heat pump dehumidification system of claim 4, wherein the first, second, third, and fourth fans each comprise a variable frequency fan.
6. The heat recovery heat pump dehumidification system of claim 1, wherein the first and second gas heat exchangers each comprise a dividing wall heat exchanger or a heat pipe heat exchanger.
7. The heat recovery heat pump dehumidification system of claim 1, wherein an auxiliary heating device is disposed at the first air outlet.
8. The heat recovery heat pump dehumidification system of claim 1, wherein the compressor has a vent, and three ports of the three-way reversing valve are connected to the third heat exchange component, the fourth heat exchange component and the vent.
9. The heat recovery heat pump dehumidification system of claim 1, wherein a condensate collection device is provided at a bottom of the second heat exchange component and the second gas heat exchanger.
10. The heat recovery heat pump dehumidification system of claim 9, wherein the compressor, throttling element, and condensate collection device are all located in the first working chamber.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202120942885.2U CN215176803U (en) | 2021-04-30 | 2021-04-30 | Heat recovery heat pump dehumidification system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202120942885.2U CN215176803U (en) | 2021-04-30 | 2021-04-30 | Heat recovery heat pump dehumidification system |
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| CN215176803U true CN215176803U (en) | 2021-12-14 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114777465A (en) * | 2022-04-11 | 2022-07-22 | 广州润达环保科技有限公司 | Heat pump drying system |
| CN115200326A (en) * | 2022-06-24 | 2022-10-18 | 青岛海尔空调电子有限公司 | Drying system for tobacco and control method for drying tobacco |
-
2021
- 2021-04-30 CN CN202120942885.2U patent/CN215176803U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114777465A (en) * | 2022-04-11 | 2022-07-22 | 广州润达环保科技有限公司 | Heat pump drying system |
| CN114777465B (en) * | 2022-04-11 | 2023-11-03 | 广州市热道节能科技有限公司 | Heat pump drying system |
| CN115200326A (en) * | 2022-06-24 | 2022-10-18 | 青岛海尔空调电子有限公司 | Drying system for tobacco and control method for drying tobacco |
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