CN215260250U - Dew point evaporation heat exchanger device - Google Patents
Dew point evaporation heat exchanger device Download PDFInfo
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- CN215260250U CN215260250U CN202121558895.2U CN202121558895U CN215260250U CN 215260250 U CN215260250 U CN 215260250U CN 202121558895 U CN202121558895 U CN 202121558895U CN 215260250 U CN215260250 U CN 215260250U
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Abstract
The utility model discloses a dew point evaporation heat exchanger device, which comprises a precooling module and an indirect heat exchange air-to-air heat exchanger module; the pre-cooling module comprises a pre-cooling flow channel; a condensing device is arranged on the precooling flow channel; the indirect heat exchange air-air heat exchanger module comprises a composite runner and an air-air heat exchanger; the utility model provides a novel dew point evaporation heat exchanger device, which adopts the temperature difference between natural water and air with medium and high temperature for the air with medium and high temperature outdoors, and firstly indirectly cools the outdoor air, and the absolute humidity of the outdoor air is not changed in the process of constant humidity cooling, so that the original wet bulb temperature of the outdoor air can be reduced; then the outdoor air is treated to the current wet bulb temperature by spraying, the outdoor side obtains lower temperature, so that a lower outdoor natural cold source is obtained, heat exchange is carried out between the outdoor natural cold source and the indoor side high-temperature air to provide cold energy for the indoor, the heat exchange efficiency of the whole unit is greatly improved, and energy is saved.
Description
Technical Field
The utility model relates to an energy-conserving air conditioner technical field specifically is a dew point evaporation heat exchanger device.
Background
The demand of the field of data centers for energy-saving air-conditioning products is gradually changed due to the increasingly strong requirements for energy conservation and emission reduction and environmental protection in the world, and the energy conservation becomes the primary consideration of the data centers.
For the traditional evaporative cooling, the outdoor air is in direct contact with water, the maximum cooling is that the processed air can only be cooled to the temperature of a wet bulb, if the relative humidity of the processed air is higher, the temperature difference of a dry bulb and a wet bulb is smaller, the cooling amplitude is limited, when the processed air is indirectly exchanged heat with the indoor air, the cold quantity of the indoor air is smaller, the overall energy consumption is higher, and the energy-saving effect is not obvious; when the dew point evaporation heat exchanger device is adopted, a larger outdoor air temperature difference can be obtained, the outdoor air is reduced to the temperature between the original wet bulb and the dew point, a larger natural cold source is provided for the outdoor side, then the outdoor side exchanges heat with the indoor side, and larger cold energy is provided for the indoor side, so that the high efficiency and the energy saving are realized.
Therefore, the efficient and energy-saving data center is a great inevitable trend for the development of the data center industry in the future, and it has become urgent to continuously and effectively reduce the operation cost of the data center. The use of dew point evaporative heat exchanger devices in machine room air conditioning equipment can therefore be of great importance.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: the traditional evaporative cooling is generally in a direct evaporative cooling mode, outdoor air is in direct contact with water, the maximum cooling is that the temperature of the processed air can only be reduced to the temperature of a wet bulb, if the relative humidity of the processed air is higher, the temperature difference of a dry bulb and a wet bulb is smaller, the cooling amplitude is limited, when the processed air is indirectly exchanged heat with the indoor air, the cooling capacity of the indoor air is smaller, the overall energy consumption is higher, and the energy-saving effect is not obvious;
the utility model provides a following technical scheme:
a dew point evaporation heat exchanger device comprises a precooling module and an indirect heat exchange air-air heat exchanger module; the pre-cooling module comprises a pre-cooling flow channel; a condensing device is arranged on the precooling flow channel; the indirect heat exchange air-air heat exchanger module comprises a composite runner and an air-air heat exchanger; the composite flow channel comprises a vertical flow channel, and a transverse flow channel is arranged in the middle of the vertical flow channel and transversely penetrates through the vertical flow channel; the bottom of the vertical flow passage is communicated with the precooling flow passage, and the air-air heat exchanger is arranged at the interaction position of the transverse flow passage and the vertical flow passage; a spraying device is fixedly arranged at the top of the vertical flow channel;
as a further technical solution of the utility model: the condensing device comprises a chilled water heat exchange coil, a water inlet collecting pipe and a water outlet collecting pipe;
the chilled water heat exchange coil is provided with a plurality of branch pipes, the plurality of branch pipes penetrate through the precooling flow channel, and two ends of the branch pipes are respectively connected with the water inlet collecting pipe and the water outlet collecting pipe.
As the utility model discloses further technical scheme again: the chilled water heat exchange coil is provided with 6 branch pipes.
As the utility model discloses further technical scheme again: the spraying device comprises a spraying pipeline; the spraying pipelines are provided with multiple paths and are uniformly fixed at the top of the vertical flow channel, and spray heads are uniformly arranged on the spraying pipelines;
as the utility model discloses further technical scheme again: the spraying pipeline is provided with four paths, and each path of spraying pipeline is provided with 2 spray heads.
As the utility model discloses further technical scheme again: the precooling flow channel is of a rectangular cylinder structure; the vertical flow channel is of a rectangular cylinder structure; the transverse flow channel is a rectangular channel.
As the utility model discloses further technical scheme again: the precooling module and the indirect heat exchange air-air heat exchanger module are of a detachable integrated mounting structure.
Compared with the prior art, the utility model discloses following beneficial effect has:
1. the utility model provides a novel dew point evaporation heat exchanger device, which adopts the temperature difference between natural water and air with medium and high temperature for the air with medium and high temperature outdoors, and firstly indirectly cools the outdoor air, and the absolute humidity of the outdoor air is not changed in the process of constant humidity cooling, so that the original wet bulb temperature of the outdoor air can be reduced; then, the outdoor air is treated to the current wet bulb temperature by spraying, and the outdoor side obtains lower temperature, so that a lower outdoor natural cold source is obtained, and heat exchange is carried out with the indoor side high-temperature air to provide cold energy for the indoor, so that the heat exchange efficiency of the whole unit is greatly improved, and energy is saved;
2. the utility model is an integrated structure, which can be quickly spliced and disassembled, thus being convenient for maintenance;
3. the utility model discloses well precooling module adopts and sprays same water source, need not introduce extra low temperature water source, can a water multi-purpose like this, improves the efficiency of whole unit.
Drawings
Fig. 1 is a perspective view of a dew point evaporative heat exchanger apparatus.
Fig. 2 is a block diagram of a pre-cooling module in a dew point evaporative heat exchanger apparatus.
Fig. 3 is a front view of an indirect heat exchange air-to-air heat exchanger module of a dew point evaporative heat exchanger apparatus.
FIG. 4 is a graph of an outdoor air cooling process in a dew point evaporative heat exchanger apparatus.
Detailed Description
The technical solution of the present patent will be described in further detail with reference to the following embodiments.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; 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 in specific cases to those skilled in the art.
Referring to fig. 1-4, a dew point evaporation heat exchanger device includes a pre-cooling module 4 and an indirect heat exchange air-air heat exchanger module 5; the pre-cooling module 4 comprises a pre-cooling flow channel; the bottom of the pre-cooling flow channel is a pre-cooling outdoor air inlet 42, and the top of the pre-cooling flow channel is a pre-cooling outdoor air outlet 41;
a condensing device is arranged on the precooling flow passage 40; the indirect heat exchange air-air heat exchanger module 5 comprises a composite runner 50 and an air-air heat exchanger 6; the compound flow channel 50 comprises a vertical flow channel; the bottom of the vertical flow passage is provided with a heat exchange outdoor air inlet 51, and the top of the vertical flow passage is provided with a heat exchange outdoor air outlet 52; a transverse flow passage is arranged in the middle of the vertical flow passage and transversely penetrates through the vertical flow passage; the left side of the transverse flow passage is provided with an indoor air inlet 54, and the right side of the transverse flow passage is provided with an indoor air outlet 55. The heat exchange outdoor air inlet 51 of the vertical flow passage is communicated with the pre-cooling outdoor air outlet 41 of the pre-cooling flow passage 40, and in the embodiment, the pre-cooling flow passage 40 is in a rectangular cylinder structure. The vertical flow channel is of a rectangular cylinder structure; the transverse flow channel is a rectangular channel.
The air-air heat exchanger 6 is arranged at the interaction position of the transverse flow channel and the vertical flow channel; and a spraying device 53 is fixedly arranged at an outdoor air outlet 52 of the vertical flow channel. The condensing device comprises a chilled water heat exchange coil 3, a water inlet collecting pipe 1 and a water outlet collecting pipe 2; the chilled water heat exchange coil 3 is provided with a plurality of branch pipes, the plurality of branch pipes penetrate through the precooling flow channel 40, and two ends of the branch pipes are respectively connected with the water inlet collecting pipe 1 and the water outlet collecting pipe 2; the spraying pipelines 7 are provided with a plurality of paths and are uniformly fixed at the top of the vertical flow channel, and the spraying pipelines 7 are uniformly provided with spray heads 8.
In this embodiment, the chilled water heat exchange coil 3 is provided with 6 branch pipes. The spraying device 53 comprises a spraying pipeline 7;
in this embodiment, the spray pipeline 7 is provided with four ways, and each way of spray pipeline 7 is provided with 2 spray heads 8.
The utility model discloses a theory of operation is: referring to fig. 1-2, natural water (generally 10-15 ℃) is introduced into a coil of chilled water to indirectly cool outdoor medium-high temperature air (20-35 ℃), and the outdoor air is pre-cooled to reduce the temperature of the outdoor air (as shown in fig. 4, the air state at point a is processed to point B), so that the outdoor air obtains a part of natural cooling source.
Referring to fig. 3, the B-point state air after being pre-cooled enters the air-air heat exchanger, and after being sprayed with tap water, the air at the outdoor side is subjected to isenthalpic treatment to a point C, where the temperature of the outdoor air corresponding to the point C is tc, and then the outdoor air at the point C exchanges heat with the high-temperature air at the indoor side (in this state, the air at the indoor side and the air at the outdoor side do not contact with each other, and only the air-air heat exchanger indirectly cools the high-temperature air at the indoor side), so as to obtain the indoor air with reduced temperature, and provide cooling capacity for the machine room. The process completely adopts a natural cold source to refrigerate the indoor air, and is energy-saving and efficient.
The processing state of the outdoor air of the common direct evaporation cooling equipment is that the outdoor air is directly sprayed from the A state point to be subjected to isenthalpic humidification and temperature reduction to the D point, and the obtained temperature of the outdoor air is td; and the outdoor air state point obtained by the dew point evaporating heat exchanger device is point C, and the temperature of the obtained outdoor air is td; and tc > td is clearly visible; therefore, compared with the existing direct evaporation state, the dew point evaporation heat exchanger device has better cooling effect and can save energy with high efficiency.
Referring to fig. 4, the position of point E in fig. 4 is the dew point corresponding to the initial state point a, and the temperature of E is the dew point temperature te, so the outdoor temperature tc obtained by the dew point evaporation heat exchanger device is between td and te, and the temperature tc of the dew point evaporation heat exchanger device for cooling the outdoor air is a temperature between the original wet bulb temperature td and te.
Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.
Claims (7)
1. A dew point evaporation heat exchanger device is characterized by comprising a precooling module and an indirect heat exchange air-air heat exchanger module;
the pre-cooling module comprises a pre-cooling flow channel; a condensing device is arranged on the precooling flow channel;
the indirect heat exchange air-air heat exchanger module comprises a composite runner and an air-air heat exchanger;
the composite flow channel comprises a vertical flow channel, and a transverse flow channel is arranged in the middle of the vertical flow channel and transversely penetrates through the vertical flow channel;
the bottom of the vertical flow passage is communicated with the precooling flow passage, and the air-air heat exchanger is arranged at the interaction position of the transverse flow passage and the vertical flow passage; and a spraying device is fixedly arranged at the top of the vertical flow channel.
2. Dew point evaporative heat exchanger apparatus as claimed in claim 1, wherein the condensing means comprises chilled water heat exchange coils, a water inlet header and a water outlet header; the chilled water heat exchange coil is provided with a plurality of branch pipes, the plurality of branch pipes penetrate through the precooling flow channel, and two ends of the branch pipes are respectively connected with the water inlet collecting pipe and the water outlet collecting pipe.
3. Dew point evaporative heat exchanger apparatus as claimed in claim 2, wherein the chilled water heat exchange coil is provided with 6 legs.
4. Dew point evaporative heat exchanger apparatus according to claim 3, wherein the spray means comprises a spray line; the spraying pipeline is provided with a plurality of paths and is uniformly fixed at the top of the vertical flow passage, and the spraying pipeline is uniformly provided with spray heads.
5. Dew point evaporative heat exchanger apparatus as claimed in claim 4, wherein the spray lines are provided in four ways, with 2 spray heads per spray line.
6. The dew point evaporative heat exchanger apparatus of claim 5, wherein the pre-cooling flow passages are rectangular cylinder structures, the vertical flow passages are rectangular cylinder structures, and the transverse flow passages are rectangular channels.
7. The dew point evaporative heat exchanger apparatus of claim 6, wherein the pre-cooling module and the indirect heat exchange air-to-air heat exchanger module are of a detachable integral mounting structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121558895.2U CN215260250U (en) | 2021-07-09 | 2021-07-09 | Dew point evaporation heat exchanger device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121558895.2U CN215260250U (en) | 2021-07-09 | 2021-07-09 | Dew point evaporation heat exchanger device |
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| CN215260250U true CN215260250U (en) | 2021-12-21 |
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| CN202121558895.2U Active CN215260250U (en) | 2021-07-09 | 2021-07-09 | Dew point evaporation heat exchanger device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114669074A (en) * | 2022-03-25 | 2022-06-28 | 高拓微通传热技术(北京)有限公司 | Multi-effect distilled water machine is with multi-functional miniflow channel condenser |
-
2021
- 2021-07-09 CN CN202121558895.2U patent/CN215260250U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114669074A (en) * | 2022-03-25 | 2022-06-28 | 高拓微通传热技术(北京)有限公司 | Multi-effect distilled water machine is with multi-functional miniflow channel condenser |
| CN114669074B (en) * | 2022-03-25 | 2023-10-24 | 高拓微通传热技术(北京)有限公司 | Multifunctional micro-channel condenser for multi-effect distilled water machine |
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