CN219531776U - Heat exchange device - Google Patents

Abstract

The utility model discloses a heat exchange device which is characterized by comprising a first heat exchanger and a second heat exchanger, wherein at least one of the first heat exchanger and the second heat exchanger is provided with a closable spraying device, an air outlet of the first heat exchanger is connected with an air inlet of the second heat exchanger, and a closable atomizing device is arranged at the air inlet of the first heat exchanger. In this heat transfer device, set up spray set and atomizing device simultaneously to make can select different cooling methods according to the difference of cooling power, extension whole life-span that can be better. And the air inlet of the first heat exchanger is provided with an atomization device, so that atomized particles can enter the second heat exchanger for full heat exchange after the first heat exchanger performs evaporation heat exchange, the heat dissipation efficiency can be further improved, and the service life is prolonged. In conclusion, the heat exchange device can effectively solve the problem that the service life of the heat exchange device is not long.

Description

Heat exchange device

Technical Field

The utility model relates to the technical field of heat exchange, in particular to a heat exchange device.

Background

There are currently known prior art methods of combining a dry heat exchanger and a plate-shaped wet heat exchanger, such as those disclosed in chinese patent application No. 201180044407.9, and a method of operating the same, wherein a hybrid heat exchange apparatus and a method of operating the same, wherein two plate-shaped wet heat exchangers are provided, wherein a water spraying apparatus of one plate-shaped wet heat exchanger can be selectively opened or closed to be used as a dry heat exchanger when closed, and wherein the heat exchangers are used as dry and wet multiplex and are mutually constrained, such that when used as a dry, a better effect is not achieved than with a pure dry wet cooler. However, in practical use, the simple wet cooling mode or dry cooling mode cannot achieve finer adjustment of cooling efficiency, which results in an increase in service life, such as wet cooling may be excessive.

In summary, how to effectively solve the problem of short service life of the heat exchange device is a problem that needs to be solved by those skilled in the art.

Disclosure of Invention

In view of the above, the present utility model is directed to a heat exchange device, which can effectively solve the problem of short service life of the heat exchange device.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the utility model provides a heat transfer device, its characterized in that includes first heat exchanger and second heat exchanger, first heat exchanger with at least one in the second heat exchanger has closable spray set, the air outlet of first heat exchanger with the air intake of second heat exchanger links to each other, the air intake department of first heat exchanger is provided with closable atomizing device.

In this heat transfer device, when using, can be according to the cooling power requirement of cooling object, open spray set or atomizing device, if under lower cooling power, can close atomizing device and spray set simultaneously, only carry out the forced air cooling, the wind body passes through two heat exchangers in proper order to make full use of the wind body cools off. When the cooling power requirement increases, the air cooling cannot be met, the atomizing device can be started at the moment, atomized particles of the atomizing device perform evaporation heat exchange at the first heat exchanger, and atomized particles which do not perform sufficient heat exchange can enter the second heat exchanger to perform evaporation heat exchange. When the cooling power requirement is further increased, atomized cooling cannot be satisfied, and the spraying device can be further started. In this heat transfer device, set up spray set and atomizing device simultaneously to make can select different cooling methods according to the difference of cooling power, extension whole life-span that can be better. And the air inlet of the first heat exchanger is provided with an atomization device, so that atomized particles can enter the second heat exchanger for full heat exchange after the first heat exchanger performs evaporation heat exchange, the heat dissipation efficiency can be further improved, and the service life is prolonged. In conclusion, the heat exchange device can effectively solve the problem that the service life of the heat exchange device is not long.

Preferably, the spraying device is arranged at the position of the first heat exchanger only in the first heat exchanger and the second heat exchanger, and the second heat exchanger is a dry heat exchanger.

Preferably, the atomizing device is an atomizing nozzle device and/or a wet film humidifying device.

Preferably, the first heat exchanger and the second heat exchanger are arranged side by side in the horizontal direction.

Preferably, an air outlet of the second heat exchanger is provided with an air draft fan.

Preferably, a water baffle is arranged between the first heat exchanger and the second heat exchanger.

Preferably, the first heat exchanger is a light pipe heat exchanger, and the second heat exchanger is a plate-fin heat exchanger.

Preferably, the spraying device is arranged only at the second heat exchanger in the first heat exchanger and the second heat exchanger.

Preferably, the heat exchange channels of the first heat exchanger and the heat exchange channels of the second heat exchanger are connected in series or in parallel.

Preferably, the inlet of the heat exchange channel of the first heat exchanger is communicated with the outlet of the heat exchange channel of the second heat exchanger.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of a heat exchange device according to an embodiment of the present utility model;

fig. 2 is a schematic structural diagram of another heat exchange device according to an embodiment of the present utility model;

fig. 3 is a schematic structural diagram of another heat exchange device according to an embodiment of the present utility model.

The figures are marked as follows:

the device comprises a first heat exchanger 1, a second heat exchanger 2, a spraying device 3, an atomizing device 4 and an exhaust fan 5.

Detailed Description

The embodiment of the utility model discloses a heat exchange device, which is used for effectively solving the problem of short service life of the heat exchange device.

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1 to 3, fig. 1 is a schematic structural diagram of a heat exchange device according to an embodiment of the present utility model; fig. 2 is a schematic structural diagram of another heat exchange device according to an embodiment of the present utility model; fig. 3 is a schematic structural diagram of another heat exchange device according to an embodiment of the present utility model.

In a specific embodiment, the present embodiment provides a heat exchange device, where the heat exchange device includes a plurality of heat exchangers, which may be two, three, or more than four heat exchangers. For convenience of explanation, two heat exchangers among them may be a first heat exchanger 1 and a second heat exchanger 2, respectively.

And the air outlet of the first heat exchanger 1 is connected with the air inlet of the second heat exchanger 2, so that the ventilation channel of the first heat exchanger 1 is connected with the ventilation channel of the second heat exchanger 2 in series. It should be noted that the series connection may be only one use state of the heat exchange device, and may also have other use states, such as the parallel connection of the ventilation channel of the first heat exchanger 1 and the ventilation channel of the second heat exchanger 2 in other use states.

The air outlet of the first heat exchanger 1 is connected with the air inlet of the second heat exchanger 2, so that with the aid of the wind body generating device, the wind body firstly passes through the first heat exchanger 1 and then passes into the second heat exchanger 2. Generally, the ambient wind is introduced into the first heat exchanger 1, then introduced into the second heat exchanger 2, and then introduced into the environment from the air outlet of the second heat exchanger 2.

At least one of the first heat exchanger 1 and the second heat exchanger 2 has a spray device 3, i.e. the first heat exchanger 1 and/or the second heat exchanger 2 has a spray device 3, and the heat exchanger with the spray device 3 is a wet heat exchanger, and the specific structure can refer to the spray type wet heat exchanger in the prior art. Wherein a closable spray device 3 means that the spray device 3 can have two use states, one use state being that the spray device 3 is turned on for spray cooling and the other use state being that the spray device 3 is turned off for air cooling or other cooling only.

Wherein the air intake department of first heat exchanger 1 is provided with atomizing device 4 to form atomizing liquid particle in the air intake department of first heat exchanger 1, atomizing liquid particle follows the wind body and enters into first heat exchanger 1, carries out evaporation heat transfer in first heat exchanger 1, and the liquid particle that does not carry out evaporation heat transfer follows the wind body and enters into second heat exchanger 2, continues to carry out evaporation heat dissipation in second heat exchanger 2, can carry out the forced air cooling simultaneously in second heat exchanger 2. Wherein a closable atomizer device 4 means that the atomizer device 4 can have two use states, one of which is the spray device 3 being opened for spray cooling and the other of which is the spray device 3 being closed for air cooling or other cooling only. The shower device 3, the atomizing device 4, and the wind generating device may be opened and closed independently. In general, the spraying device 3 and the atomizing device 4 are not simultaneously opened, but one of them may be independently opened or may be completely closed. The wind generating device may be turned on alone or simultaneously with any one of the spraying device 3 and the atomizing device 4.

In this heat transfer device, when using, can be according to the cooling power requirement of cooling object, open spray set 3 or atomizing device 4, if under lower cooling power, can close atomizing device 4 and spray set 3 simultaneously, only carry out the forced air cooling, the wind body passes through two heat exchangers in proper order to make full use of the wind body cools off. When the cooling power requirement increases, the air cooling cannot be satisfied, the atomizing device 4 can be started at the moment, atomized particles of the atomizing device 4 perform evaporation heat exchange at the first heat exchanger 1, and atomized particles which do not perform sufficient heat exchange can enter the second heat exchanger 2 to perform evaporation heat exchange. When the cooling power requirement further increases, the atomized cooling is not satisfied, and the spraying device 3 can be further turned on. In this heat transfer device, set up spray set 3 and atomizing device 4 simultaneously to make can select different cooling methods according to the difference of cooling power, can be better extension whole life-span. And the air intake of first heat exchanger 1 is provided with atomizing device 4 to make the granule that atomizes can be after first heat exchanger 1 evaporation heat transfer, and the granule that atomizes of insufficient heat transfer can enter into in second heat exchanger 2 and fully heat transfer, can further improve radiating efficiency, increase of service life. In conclusion, the heat exchange device can effectively solve the problem that the service life of the heat exchange device is not long.

At least one of the first heat exchanger 1 and the second heat exchanger 2 has a closable spray device 3, it being possible for the first heat exchanger 1 to be provided with a spray device 3, while the second heat exchanger 2 is not provided with a spray device 3 as described above. It is also possible that the second heat exchanger 2 is provided with a spray device 3, whereas the first heat exchanger 1 is not provided with a spray device 3 as described above.

In some embodiments, one of the first heat exchanger 1 and the second heat exchanger 2 may be a wet heat exchanger having a shower device 3, and the other may be a dry heat exchanger. The dry heat exchanger has larger heat dissipation area than the wet heat exchanger with the spraying device 3, and generally has more fins to be fully contacted with the wind body, so as to ensure sufficient heat exchange with the wind body, for example, a plate-fin heat exchanger can be a fin tube heat exchanger or a plate heat exchanger. The wet heat exchanger is generally a light pipe heat exchanger, namely, the wet heat exchanger is only provided with a pipeline, and liquid falls on the outer surface of the pipeline to perform evaporation heat exchange, so that the obstruction of liquid flow is avoided. Of course, the wet heat exchanger may be a non-light pipe heat exchanger, i.e., a small number of fins may be provided, so long as the flow of liquid is not impeded. One of the two heat exchangers is a dry heat exchanger, so that air cooling can be well realized, and then the opening time of the spraying device 3 and the atomizing device 4 is reduced, so that the service life is further prolonged.

In some embodiments, as shown in fig. 1, the spraying device 3 may be disposed only at the first heat exchanger 1 in the first heat exchanger 1 and the second heat exchanger 2, where the second heat exchanger 2 is a dry heat exchanger. At this point, an atomizer 4 is arranged at the air inlet of the first heat exchanger 1. When the atomizing device 4 is on, the spraying device 3 can be off. Then the atomized liquid particles of the atomizing device 4 enter the first heat exchanger 1 along with the wind body, and evaporate and exchange heat, and when some liquid particles are not evaporated yet, namely flow out from the air outlet of the first heat exchanger 1 and enter the second heat exchanger 2, the content of the liquid particles is obviously reduced, although the second heat exchanger 2 is a dry heat exchanger, too much influence on the flow of the liquid particles is avoided, conversely, a small amount of liquid particles can continue evaporating and exchanging heat in the second heat exchanger 2, so that the heat exchange efficiency of the second heat exchanger 2 can be increased, and the service life of the whole heat exchange device is prolonged as a whole.

In some embodiments, wherein the atomizing device 4 refers to a device capable of atomizing a liquid. Generally in two forms: in one form, as shown in figure 1, an atomizer device is provided, wherein an atomizer is adopted, when water flows through the atomizer, the water is not sprayed out but is emitted in a mist form, and in the mist state, the content of liquid particles in a wind body is very high; in another form, as shown in fig. 2, a wet film humidifying device is used, and when a wind body passes through the wet film, liquid is carried to form granular liquid, and a great amount of granular liquid forms an atomized state in the wind body.

In some embodiments, as shown in fig. 1, 2 and 3, the first heat exchanger 1 and the second heat exchanger may be arranged in parallel in a horizontal direction, so as to facilitate atomized particles passing through the first heat exchanger 1 to enter the second heat exchanger 2 more conveniently, so as to ensure heat exchanger efficiency of the second heat exchanger 2.

Of course, the first heat exchanger 1 and the second heat exchanger 2 may be disposed up and down, for example, the second heat exchanger 2 is disposed directly above the first heat exchanger 1, in which case, the second heat exchanger 2 is preferably a dry heat exchanger, and the spraying device 3 is disposed between the first heat exchanger 1 and the second heat exchanger 2.

In some embodiments, the wind generating device may be an air draft fan 5 or an air supply fan. For example, an air draft fan 5 may be disposed at the air outlet of the second heat exchanger 2 and/or an air supply fan may be disposed at the air inlet of the single heat exchanger. Generally, as shown in fig. 1-3, only the air outlet of the second heat exchanger 2 needs to be provided with an air draft fan 5, so that the air body is far away from the liquid, and the service life of the fan is prolonged.

In some embodiments, a water baffle may be provided between the first heat exchanger 1 and the second heat exchanger 2. Especially when the first heat exchanger 1 is provided with a spray device 3 and the second heat exchanger 2 is a dry heat exchanger, a large amount of water is prevented from entering the second heat exchanger 2, which affects the service life of the second heat exchanger 2. The water baffle is generally an air deflector for changing the wind direction, and large liquid particles can hit the water baffle along with the wind body and then flow along with the water baffle under the action of gravity so as to be separated from the wind body. Of course, the number of baffles may be selected to select the amount of water blocked, depending on the number of liquid particles received by the second heat exchanger 2. The water baffle is generally arranged at the air outlet of the first heat exchanger 1.

In some embodiments, as shown in fig. 3, the spraying device 3 may be disposed only at the second heat exchanger 2 in the first heat exchanger 1 and the second heat exchanger 2, and the air inlet of the first heat exchanger 1 is disposed with the atomizing device 4, where the second heat exchanger 2 corresponds to a spraying heat exchanger and the first heat exchanger 1 corresponds to an atomizing heat exchanger. Generally, the heat exchange area of the spray heat exchanger is larger than that of the spray heat exchanger, i.e. the spray heat exchanger can be provided with a small number of fins so as to enlarge the contact area with the wind body and further fully contact with liquid particles in the wind body.

In this heat exchanger, the spraying device 3 and the atomizing device 4 can be turned on simultaneously. So as to further ensure the heat exchange efficiency and prolong the service life. When in use, the spraying device can be independently started, the spraying device 3 can be independently started, and the spraying device 3 and the atomizing device 4 can be simultaneously started. When the spraying device 3 and the atomizing device 4 are simultaneously started, atomized particles are evaporated at the first heat exchanger 1, the air quantity is increased, and the air body at the spraying device 3 can be better pushed out.

In some embodiments, the heat exchange channels of the first heat exchanger 1 and the heat exchange channels of the second heat exchanger 2 may be connected in series or in parallel. When the heat exchangers are connected in parallel, high-heat fluid flows out from the heat source, one part of the high-heat fluid enters the heat exchange channel of the first heat exchanger 1, the other part of the high-heat fluid enters the heat exchange channel of the second heat exchanger 2, and the high-heat fluid flows out of the heat exchange device again after exchanging heat at the first heat exchanger 1 and the second heat exchanger 2 respectively. The fluid which can exchange heat generally flows in the heat exchange channel can be freon, water or other fluids.

When in series connection, the inlet of the heat exchange channel of the second heat exchanger 2 is communicated with the outlet of the heat exchange channel of the first heat exchanger 1, so that the heat exchange channel passes through the first heat exchanger 1 and then passes through the second heat exchanger 2.

As in fig. 1, it is preferred here that the inlet of the heat exchange channel of the first heat exchanger 1 communicates with the outlet of the heat exchange channel of said second heat exchanger 2, so that it passes through the second heat exchanger 2 before it passes through the first heat exchanger 1. If the second heat exchanger 2 is a dry heat exchanger, the second heat exchanger 2 is mainly cooled by air, so that when the high-heat refrigerant passes through the second heat exchanger 2, the high-heat refrigerant is cooled by air first to reduce the temperature in the heat exchange channel and then flows to the first heat exchanger 1 for evaporation and cooling, thereby reducing the evaporation amount of liquid and prolonging the service life of the first heat exchanger 1.

In fig. 3, the inlet of the heat exchange channel of the second heat exchanger 2 is communicated with the outlet of the heat exchange channel of the first heat exchanger 1, at this time, two types of cooling, namely air cooling and evaporative cooling, are performed at the first heat exchanger 1, and the evaporative cooling is mainly performed at the second heat exchanger 2, so as to reduce the evaporation amount of the evaporative cooling, and further prolong the service life.

In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. The utility model provides a heat transfer device, its characterized in that includes first heat exchanger and second heat exchanger, first heat exchanger with at least one in the second heat exchanger has closable spray set, the air outlet of first heat exchanger with the air intake of second heat exchanger links to each other, the air intake department of first heat exchanger is provided with closable atomizing device.

2. The heat exchange device of claim 1, wherein the spray device is disposed only at the first heat exchanger of the first heat exchanger and the second heat exchanger is a dry heat exchanger.

3. The heat exchange device according to claim 2, wherein the atomizing device is an atomizer device and/or a wet film humidifying device.

4. A heat exchange device according to claim 3, wherein the first heat exchanger and the second heat exchanger are arranged side by side in a horizontal direction.

5. The heat exchange device of claim 4, wherein the air outlet of the second heat exchanger is provided with an air extraction fan.

6. The heat exchange device of claim 5, wherein a water deflector is disposed between the first heat exchanger and the second heat exchanger.

7. The heat exchange device of claim 6 wherein the first heat exchanger is a light pipe heat exchanger and the second heat exchanger is a plate fin heat exchanger.

8. The heat exchange device of claim 1, wherein the spray device is provided only at the second heat exchanger of the first heat exchanger and the second heat exchanger.

9. The heat exchange device according to any one of claims 1 to 8, wherein the heat exchange channels of the first heat exchanger and the heat exchange channels of the second heat exchanger are connected in series or in parallel.

10. The heat exchange device of claim 9, wherein the inlet of the heat exchange channel of the first heat exchanger is in communication with the outlet of the heat exchange channel of the second heat exchanger.