CN217057753U - Combined double-cold-source combined air handling unit - Google Patents
Combined double-cold-source combined air handling unit Download PDFInfo
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- CN217057753U CN217057753U CN202220837305.8U CN202220837305U CN217057753U CN 217057753 U CN217057753 U CN 217057753U CN 202220837305 U CN202220837305 U CN 202220837305U CN 217057753 U CN217057753 U CN 217057753U
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Abstract
The utility model relates to the technical field of air purification equipment, in particular to a composite double-cold-source combined air handling unit, which comprises a first surface cooling pipeline, a dehumidification pipeline, a heat recovery pipeline and an independent heat dissipation section, wherein the first surface cooling pipeline, the dehumidification pipeline and the heat recovery pipeline are sequentially arranged from an air inlet to an air outlet; the first surface cooling pipeline is connected with a cold and hot water system; the dehumidification pipeline is connected into an independent cryogenic system; a heat dissipation port, a heat dissipation fan, an evaporator and a compressor are arranged in the heat dissipation section; the heat dissipation port is arranged on the shell of the heat dissipation section, and the heat dissipation fan is arranged on the heat dissipation port; the evaporator is connected with the compressor through pipelines and is connected with the heat recovery pipeline through pipelines. The utility model provides a compound two cold source combination formula air treatment unit can effectively improve the energy efficiency ratio.
Description
Technical Field
The utility model relates to an air purification equipment technical field, in particular to compound two cold source combination formula air treatment unit.
Background
Conventional air handling units typically employ a single cold heat source system. Although the overall structure of the air handling unit adopting the single-cold-source system is relatively simple, the COP value (energy efficiency ratio) of the air handling unit is relatively low, for example, the COP value of the air handling unit adopting the air cooling system alone is only 2.5-2.8, and the requirements of the market on the air handling unit with high performance and low energy consumption are difficult to meet.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model aims to solve the technical problems that: provides a composite double-cold-source combined air handling unit with high energy efficiency ratio.
In order to solve the technical problem, the utility model discloses a technical scheme be: the composite double-cold-source combined air handling unit comprises a first surface cooling pipeline, a dehumidification pipeline, a heat recovery pipeline and an independent heat dissipation section, wherein the first surface cooling pipeline, the dehumidification pipeline and the heat recovery pipeline are sequentially arranged from an air inlet to an air outlet;
the first surface cooling pipeline is connected with a cold and hot water system;
the dehumidification pipeline is connected into an independent cryogenic system;
a heat dissipation port, a heat dissipation fan, an evaporator and a compressor are arranged in the heat dissipation section;
the heat dissipation port is arranged on the shell of the heat dissipation section, and the heat dissipation fan is arranged on the heat dissipation port;
the evaporator is connected with the compressor through pipelines and is connected with the heat recovery pipeline through pipelines.
And electronic bypass valves are arranged on pipelines connected with the compressor, the evaporator and the heat recovery pipeline.
The air conditioner also comprises a dehumidification section, an air return section and an air outlet section which are sequentially arranged from the air inlet to the air outlet and are communicated with one another;
the air inlet, the first surface cooling pipeline and the dehumidification pipeline are all arranged on the dehumidification section;
the air return section is provided with at least one air return opening;
the air outlet reaches the heat recovery pipeline all sets up on the air supply section.
The upstream of the dehumidification pipeline is provided with a preposed heat recovery pipeline, and the downstream of the dehumidification pipeline is provided with a postposed heat recovery pipeline connected with the preposed heat recovery pipeline; the first surface cooling pipeline is arranged between the preposed heat recovery pipeline and the dehumidification pipeline.
And a solvent pump is arranged on a pipeline connected with the preposed heat recovery pipeline and the postposed heat recovery pipeline.
Wherein, still be provided with the primary filter in the dehumidification section, the primary filter sets up leading heat recovery pipeline's upper reaches.
Two air return ports are arranged in the air return section, and a second surface cooling pipeline is arranged between the two air return ports.
The air outlet section is provided with a medium efficiency filter and a humidifier which are sequentially arranged from the air inlet to the air outlet;
the heat recovery pipeline is arranged between the middle-effect filter and the humidifier.
The beneficial effects of the utility model reside in that: through with the cold pipeline of first table and the different cold source system of dehumidification pipeline access, can effectively improve air treatment unit overall performance, set up the cold pipeline of first table in the upper reaches of dehumidification pipeline and can realize carrying out precooling in advance to the dehumidification efficiency of avoiding because the air temperature fluctuation that the dehumidification pipeline contacted is too big to lead to the dehumidification pipeline reduces and the energy consumption increases. And the heat recovery pipeline positioned at the downstream of the dehumidification pipeline is connected with the compressor and the evaporator through pipelines, the evaporator is cooled in an independent heat dissipation section through a heat dissipation fan, so that a heat source or a cold source is provided for the heat recovery pipeline through the evaporator and the compressor to adjust the air temperature in the air handling unit, and the overall energy consumption of the air handling unit is further reduced. Through the test, the utility model provides a compound two cold source combination formula air handling unit COP value can promote to 3.0 ~ 3.5.
Drawings
Fig. 1 is a schematic structural diagram of a combined dual cold source combined air handling unit according to an embodiment of the present invention.
Description of reference numerals: 1. an air inlet; 2. a dehumidification section; 3. a primary filter; 4. a heat recovery pipeline is arranged in front; 5. a first surface cooling pipeline; 6. a dehumidification pipeline; 7. a heat recovery pipeline is arranged at the rear; 8. a solvent pump; 9. an air return section; 10. an air return opening; 11. a second surface cooling pipeline; 12. a pressurizing blower; 13. an intermediate-efficiency filter; 14. a heat recovery pipeline; 15. a humidifier; 16. an air outlet; 17. a heat dissipation section; 18. a heat dissipation port; 19. a heat-dissipating fan; 20. an evaporator; 21. a compressor; 22. an electronic bypass valve.
Detailed Description
In order to explain the technical contents, the objects and the effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.
Referring to fig. 1, the combined air handling unit with dual cold sources includes a first surface cooling pipeline 5, a dehumidifying pipeline 6, a heat recycling pipeline 14, and an independent heat dissipating section 17, which are sequentially disposed from an air inlet 1 to an air outlet 16; the first surface cooling pipeline 5 is connected to a cold and hot water system; the dehumidification pipeline 6 is connected to an independent cryogenic system; a heat dissipation port 18, a heat dissipation fan 19, an evaporator 20 and a compressor 21 are arranged in the heat dissipation section 17; the heat dissipation port 18 is arranged on the shell of the heat dissipation section 17, and the heat dissipation fan 19 is arranged on the heat dissipation port 18; the evaporator 20 and the compressor 21 are connected by pipelines and are connected with the heat recovery pipeline 14 by pipelines.
The cold and hot water system is a condenser loaded with cold and hot water, an internal coil of the cold and hot water system is communicated with an external coil, cold water is a refrigerant, hot water is a heating medium, and the refrigerant and the heating medium both flow in inner cavities of metal pipelines of the internal coil and the external coil; the external coil is used for exchanging heat with air and producing cold water to flow into the internal coil, and the internal coil absorbs heat to refrigerate air outside the internal coil through the cold water inside the internal coil.
The independent cryogenic system is a condenser loaded with a Freon refrigerant, and the Freon refrigerant is directly expanded in a coil of an evaporator 20 of the condenser so as to absorb heat to refrigerate air outside the coil.
The separate heat dissipation sections 17 are relative to the main portion of the air handling unit, which are spatially separated from each other and not in communication. In the actual installation process the heat dissipating section 17 is installed outdoors, i.e. the evaporator 20 is in communication with the outdoor environment through the heat dissipating port 18, while the main part of the air handling unit is installed indoors, and the first surface cooling circuit 5, the dehumidification circuit 6 and the heat recovery circuit 14 are all arranged in said main part.
It should be noted that the fresh air is air outside the building (outdoor), or air that has not been circulated through an air handling system (air conditioning system) before entering the building.
In this context, the return air is air that is circulated within a building (indoors) and through an air handling system (air conditioning system).
In this context, upstream refers to the side close to the intake opening 1, and downstream refers to the side close to the outlet opening 16.
In a specific operation process, fresh air enters a main body part of the air conditioning unit through the air inlet 1, and is pre-cooled by the first surface cooling pipeline 5 to stabilize the temperature of the fresh air, so that the problems of reduction of the dehumidification effect of the dehumidification pipeline 6 and increase of energy consumption caused by large temperature difference fluctuation of the fresh air in front of the dehumidification pipeline 6 are avoided; the precooled fresh air is deeply dehumidified through a dehumidification pipeline 6; in the process that the deeply dehumidified cold or hot (mixed with return air) fresh air passes through the heat recovery pipeline 14, the redundant cold source or heat source can be recovered by the heat recovery pipeline 14, and the temperature of the fresh air is adjusted. The recovered heat source or cold source can flow to the heat dissipation section 17 through the pipeline, and is exchanged to the outdoor environment through the combined action of the compressor 21, the evaporator 20 and the heat dissipation fan 19, and forms a stable cold source or heat source to be continuously supplied to the heat recovery pipeline 14, so as to realize the continuous temperature adjustment of the heat recovery pipeline 14.
The coolant in the heat recovery circuit 14 can be freon, cold and hot water, or other coolant.
Preferably, an electronic bypass valve 22 is provided on a line connecting the compressor 21 and the evaporator 20 with the heat recovery line 14.
Furthermore, the air handling unit also comprises a dehumidification section 2, an air return section 9 and an air outlet section which are sequentially arranged from the air inlet 1 to the air outlet 16 and are communicated with one another;
the air inlet 1, the first surface cooling pipeline 5 and the dehumidifying pipeline 6 are all arranged on the dehumidifying section 2;
the air return section 9 is provided with at least one air return opening 10;
the air outlet 16 and the heat recovery pipeline 14 are both arranged on the air supply section.
The fresh air enters the air handling unit through the air inlet 1, is mixed with return air entering the air handling unit from the return air inlet 10 in the return air section 9, and the mixed air is finally discharged into a room through the air outlet 16.
Preferably, a preposed heat recovery pipeline 4 is arranged at the upstream of the dehumidification pipeline 6, and a postposed heat recovery pipeline 7 connected with the preposed heat recovery pipeline 4 is arranged at the downstream of the dehumidification pipeline; the first surface cooling pipeline 5 is arranged between the preposed heat recovery pipeline 4 and the dehumidification pipeline 6; and a solvent pump 8 is arranged on a pipeline connecting the preposed heat recovery pipeline 4 and the postposed heat recovery pipeline 7. Because the fresh air contains a large amount of heat sources or cold sources before being introduced into the first surface cooling pipeline 5, therefore, a front heat recovery pipeline 4 is arranged at the upstream of the first surface cooling pipeline 5, a rear heat recovery pipeline 7 connected with the front heat recovery pipeline 4 is arranged at the downstream of the dehumidifying pipeline 6, so as to recycle redundant heat sources or cold sources in the fresh air through the preposed heat recycling pipeline 4, transfer the recycled heat sources or cold sources into the postpositional heat recycling pipeline 7 through the pipeline, adjust the temperature of the deeply dehumidified fresh air by utilizing the postpositional heat recycling pipeline 7, and the rear heat recovery pipeline 7 can also recover redundant cold sources in the deeply dehumidified fresh air and transfer the cold sources to the front heat recovery pipeline 4, in order to adjust the temperature of the fresh air before the first surface cooling pipeline 5 through the prepositive heat recovery pipeline 4, also avoid the energy consumption increase of the first surface cooling pipeline 5 caused by the overlarge temperature difference wave of the fresh air before the first time cooling pipeline.
Preferably, a primary filter 3 is further arranged in the dehumidification section 2, and the primary filter 3 is arranged at the upstream of the preposed heat recovery pipeline 4. A primary filter 3 is arranged at the upstream of the preposed heat recovery pipeline 4, so that dust particles and suspended matters larger than 5 mu m in fresh air are filtered by the primary filter 3.
In one embodiment, two air return inlets 10 are arranged in the air return section 9, and a second surface cooling pipeline 11 is arranged between the two air return inlets 10. The fresh air and the return air are mixed in the return air section 9, so that the temperature and the humidity of the fresh air are adjusted through the return air, and the energy consumption of subsequent temperature adjustment and humidity adjustment is reduced. Meanwhile, when the number of the return air inlets 10 is two, a second surface cooling pipeline 11 can be arranged between the return air inlets 10, and the damp and heat load of return air in the indoor controlled area is borne through the second surface cooling pipeline 11.
Preferably, in order to further purify the air and realize constant temperature and humidity, the air outlet section is provided with a medium efficiency filter 13 and a humidifier 15 which are sequentially arranged along the air inlet 1 to the air outlet 16; the heat recovery line 14 is disposed between the intermediate filter 13 and the humidifier 15. The air conditioner has the advantages that 1-5 mu m dust particles and suspended matters in the air are filtered through the medium-efficiency filter 13, and finally the temperature and the humidity of the air are adjusted through the combined use of the heat recovery pipeline 14 and the humidifier 15, so that the indoor air can be kept at a constant temperature and humidity when the air is sent into a hot room. And the air outlet section is arranged, and the operation of control software can be combined, so that an optimal operation strategy is achieved.
The utility model provides a compound two cold source combination formula air treatment unit, applicable personnel intensive places such as market, school to and be applicable to places such as biological laboratory that high environmental requirement.
Example 1
The combined air handling unit with double cold sources comprises a first surface cooling pipeline 5, a dehumidification pipeline 6, a heat recovery pipeline 14 and an independent heat dissipation section 17, wherein the first surface cooling pipeline, the dehumidification pipeline 6 and the heat recovery pipeline 14 are sequentially arranged from an air inlet 1 to an air outlet 16;
the first surface cooling pipeline 5 is connected to a cold and hot water system;
the dehumidification pipeline 6 is connected into an independent cryogenic system;
a heat dissipation port 18, a heat dissipation fan 19, an evaporator 20 and a compressor 21 are arranged in the heat dissipation section 17;
the heat dissipation opening 18 is arranged on the shell of the heat dissipation section 17, and the heat dissipation fan 19 is arranged on the heat dissipation opening 18;
the evaporator 20 is connected with the compressor 21 through a pipeline, and both are connected with the heat recovery pipeline 14 through a pipeline;
an electronic bypass valve 22 is arranged on a pipeline connected with the heat recovery pipeline 14 by the compressor 21 and the evaporator 20;
the air handling unit also comprises a dehumidification section 2, an air return section 9 and an air outlet section which are sequentially arranged from the air inlet 1 to the air outlet 16 and are communicated with one another;
the air inlet 1, the first surface cooling pipeline 5 and the dehumidifying pipeline 6 are all arranged on the dehumidifying section 2;
the air return section 9 is provided with an air return opening 10;
the air outlet 16 and the heat recovery pipeline 14 are both arranged on the air supply section;
a preposed heat recovery pipeline 4 is arranged at the upstream of the dehumidification pipeline 6, and a postposed heat recovery pipeline 7 connected with the preposed heat recovery pipeline 4 is arranged at the downstream of the dehumidification pipeline; the first surface cooling pipeline 5 is arranged between the preposed heat recovery pipeline 4 and the dehumidification pipeline 6; a solvent pump 8 is arranged on a pipeline connected with the preposed heat recovery pipeline 4 and the postposed heat recovery pipeline 7;
a primary filter 3 is also arranged in the dehumidification section 2, and the primary filter 3 is arranged at the upstream of the preposed heat recovery pipeline 4;
the air outlet section is provided with a medium efficiency filter 13 and a humidifier 15 which are sequentially arranged along the air inlet 1 to the air outlet 16;
the heat recovery line 14 is disposed between the intermediate filter 13 and the humidifier 15.
Example 2
The combined air handling unit with double cold sources comprises a first surface cooling pipeline 5, a dehumidification pipeline 6, a heat recovery pipeline 14 and an independent heat dissipation section 17, wherein the first surface cooling pipeline, the dehumidification pipeline 6 and the heat recovery pipeline 14 are sequentially arranged from an air inlet 1 to an air outlet 16;
the first surface cooling pipeline 5 is connected to a cold and hot water system;
the dehumidification pipeline 6 is connected to an independent cryogenic system;
a heat dissipation port 18, a heat dissipation fan 19, an evaporator 20 and a compressor 21 are arranged in the heat dissipation section 17;
the heat dissipation port 18 is arranged on the shell of the heat dissipation section 17, and the heat dissipation fan 19 is arranged on the heat dissipation port 18;
the evaporator 20 is connected with the compressor 21 through a pipeline, and both are connected with the heat recovery pipeline 14 through a pipeline;
an electronic bypass valve 22 is arranged on a pipeline connected with the heat recovery pipeline 14 by the compressor 21 and the evaporator 20;
the air handling unit also comprises a dehumidification section 2, an air return section 9 and an air outlet section which are sequentially arranged from the air inlet 1 to the air outlet 16 and are communicated with one another;
the air inlet 1, the first surface cooling pipeline 5 and the dehumidifying pipeline 6 are all arranged on the dehumidifying section 2;
two air return ports 10 are arranged on the air return section 9, and a second surface cooling pipeline 11 is arranged between the two air return ports 10;
the air outlet 16 and the heat recovery pipeline 14 are both arranged on the air supply section;
a preposed heat recovery pipeline 4 is arranged at the upstream of the dehumidification pipeline 6, and a post-heat recovery pipeline 7 connected with the preposed heat recovery pipeline 4 is arranged at the downstream of the dehumidification pipeline; the first surface cooling pipeline 5 is arranged between the preposed heat recovery pipeline 4 and the dehumidification pipeline 6; a solvent pump 8 is arranged on a pipeline connected with the preposed heat recovery pipeline 4 and the postposed heat recovery pipeline 7;
a primary filter 3 is also arranged in the dehumidification section 2, and the primary filter 3 is arranged at the upstream of the preposed heat recovery pipeline 4;
the air outlet section is provided with a medium efficiency filter 13 and a humidifier 15 which are sequentially arranged along the air inlet 1 to the air outlet 16;
the heat recovery line 14 is disposed between the intermediate filter 13 and the humidifier 15.
Specifically, as shown in fig. 1, fresh air enters the dehumidification section 2 through the air inlet 1. The fresh air is primarily filtered through the primary filter 3. The preposed heat recovery pipeline 4 recovers redundant heat sources or cold sources in fresh air by contacting with the fresh air and transfers the recovered heat sources or cold sources to the postposed heat recovery pipeline 7 by starting the solvent pump 8. The fresh air passing through the preposed heat recovery pipeline 4 is precooled through the first surface cooling pipeline 5 and continues to be deeply dehumidified through the dehumidification pipeline 6. The post-heat recovery pipeline 7 which receives the heat source or the cold source transfers the recovered heat source or the cold source into the fresh air by contacting with the deeply dehumidified fresh air so as to adjust the temperature of the fresh air for the first time. When the temperature-adjusted fresh air flows from the dehumidification section 2 to the return air section 9, the fresh air is mixed with the return air entering from the first return air inlet 10, is subjected to secondary temperature adjustment by contacting with the second surface cooling pipeline 11, and finally is sent into the air supply section through the pressurizing air blower 12 (which provides a power source for air flowing in the air handling unit so as to drive the air to flow in the direction from the air inlet 1 to the air outlet 16). At this time, the air is further filtered by the intermediate filter 13, and the third temperature and humidity adjustment of the air is performed through the heat recovery line 14 and the humidifier 15. In the process of adjusting the temperature and recovering the heat of the air by the heat recovery pipeline 14, the recovered heat source or cold source flows into the compressor 21 through the pipeline and further flows into the evaporator 20, at this time, the heat dissipation fan drives the air in the heat dissipation section 17 to flow so as to promote the heat of the coolant in the evaporator 20 to be released into the heat dissipation section 17, and the coolant after heat dissipation flows back into the heat recovery pipeline 14 through the pipeline again, so that the stable heat source or cold source is continuously provided for the heat recovery pipeline 14.
The above mentioned is only the embodiment of the present invention, and the patent scope of the present invention is not limited thereby, and all the equivalent transformations made by the contents of the specification and the drawings, or the direct or indirect application in the related technical field, are included in the patent protection scope of the present invention.
Claims (8)
1. The composite double-cold-source combined air handling unit is characterized by comprising a first surface cooling pipeline, a dehumidification pipeline, a heat recovery pipeline and an independent heat dissipation section, wherein the first surface cooling pipeline, the dehumidification pipeline and the heat recovery pipeline are sequentially arranged from an air inlet to an air outlet;
the first surface cooling pipeline is connected with a cold and hot water system;
the dehumidification pipeline is connected into an independent cryogenic system;
a heat dissipation port, a heat dissipation fan, an evaporator and a compressor are arranged in the heat dissipation section;
the heat dissipation fan is arranged on the heat dissipation port;
the evaporator is connected with the compressor through pipelines and is connected with the heat recovery pipeline through pipelines.
2. The combined dual cold source combined air handling unit of claim 1, wherein an electronic bypass valve is provided on the conduit connecting the compressor and evaporator to the heat recovery conduit.
3. The combined double-cold-source combined air handling unit as claimed in claim 1, further comprising a dehumidification section, an air return section and an air outlet section which are sequentially arranged from the air inlet to the air outlet and are communicated with each other;
the air inlet, the first surface cooling pipeline and the dehumidification pipeline are all arranged on the dehumidification section;
the air return section is provided with at least one air return opening;
the air outlet reaches the heat recovery pipeline all sets up on the air supply section.
4. The combined double-cold-source combined air handling unit according to claim 3, wherein a preposed heat recovery pipeline is arranged at the upstream of the dehumidification pipeline, and a postposed heat recovery pipeline connected with the preposed heat recovery pipeline is arranged at the downstream of the dehumidification pipeline; the first surface cooling pipeline is arranged between the preposed heat recovery pipeline and the dehumidification pipeline.
5. The combined double cold source combined air handling unit according to claim 4, wherein a solvent pump is disposed on the pipeline connecting the front heat recovery pipeline and the rear heat recovery pipeline.
6. The combined dual cold source combined air handling unit of claim 4, wherein a primary filter is further disposed within the dehumidification section, the primary filter being disposed upstream of the pre-heat recovery pipeline.
7. The combined type air handling unit with double cold sources as claimed in claim 3, wherein two air return inlets are provided in the air return section, and a second surface cooling pipeline is provided between the two air return inlets.
8. The combined double cold source combined air handling unit of claim 3, wherein the air outlet section has a medium efficiency filter and a humidifier sequentially arranged from the air inlet to the air outlet;
the heat recovery pipeline is arranged between the middle-effect filter and the humidifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220837305.8U CN217057753U (en) | 2022-04-12 | 2022-04-12 | Combined double-cold-source combined air handling unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220837305.8U CN217057753U (en) | 2022-04-12 | 2022-04-12 | Combined double-cold-source combined air handling unit |
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| Publication Number | Publication Date |
|---|---|
| CN217057753U true CN217057753U (en) | 2022-07-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220837305.8U Active CN217057753U (en) | 2022-04-12 | 2022-04-12 | Combined double-cold-source combined air handling unit |
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| CN (1) | CN217057753U (en) |
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2022
- 2022-04-12 CN CN202220837305.8U patent/CN217057753U/en active Active
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