JPWO2020228474A5 - - Google Patents

Description

FIELD OF THE INVENTION The present invention relates to heat exchangers, and more particularly to flash- closed heat exchangers.

A heat exchanger is a device for exchanging heat between cold and hot media, and is also called a "heat exchanger."
Heat exchangers occupy an important position in chemical industry, petroleum, power, food and many other industrial productions. In actual production, heat exchangers are used in heaters, coolers, condensers, evaporators and It is widely used as a reboiler, etc.

A conventional heat exchanger usually includes one open cavity in which a heat exchange coil is provided, and many cold outdoor natural winds enter the open cavity and pass through the heat exchange coil. As it flows, it absorbs the heat of the heat exchange coil, becomes high-temperature air, and is discharged outside the cavity, achieving a cooling effect on the medium inside the heat exchange coil.

The problem with conventional air-cooled heat exchangers is that the refrigeration effect of the heat exchanger is greatly affected by the external environment. The exchange efficiency is high, the refrigeration effect of the heat exchanger is good, and if the temperature or humidity of the external natural wind is too high, the heat exchange efficiency between the natural wind and the heat dissipation coil will be poor, so the refrigeration of the entire heat exchanger is It has a serious impact on its effectiveness and cannot be frozen.

To solve this problem, conventional heat exchangers have been improved.
As shown in Fig. 1, the intake port of the open cavity 1 is provided with a jetting head 2, which can reduce the natural wind temperature around the jetting head, and the water flowing into the open cavity 1 can reduce the natural wind temperature around the jetting head. Because the natural wind temperature has decreased to a certain extent, the heat exchange efficiency between the natural wind and the heat exchange coil 3 has been improved to a certain extent, so this improved heat exchanger has a better refrigeration effect compared to the traditional heat exchanger. expensive.

However, the heat exchange effect of such an improved heat exchanger is still affected by the temperature and humidity of the external natural wind, and the effects thereof are very large.
Particularly in hot and humid regions, the refrigeration effect of such heat exchangers is still poor and the energy consumption is very large, making it increasingly difficult to meet refrigeration needs.

The present invention accelerates the conversion of water from a liquid state to a gaseous state within a closed housing, thereby absorbing heat and releasing cold heat to lower the temperature within the closed housing, and further reduces the temperature within the closed housing. A flash closed heat exchanger is provided that cools or directly cools a medium within a closed housing.
Specifically, it is as follows.
That is, the flash closed heat exchanger includes a closed housing, and the closed housing is provided with a negative pressure blower that creates a negative pressure environment inside the closed housing, and the closed housing includes a negative pressure blower that closes the atomized water. A water atomization device is provided that evaporates atomized water into steam by injecting it into the housing in a negative pressure environment.

Furthermore, the exhaust air volume of the negative pressure blower is greater than the evaporation volume of atomized water within the closed housing.

Furthermore, the pressure of the negative pressure environment within the closed housing is more than 20 Pa lower than the ambient atmospheric pressure.

Furthermore, a water atomization device is provided on one side of this closed housing, a negative pressure blower is provided on the other side, and a heat exchanger located inside the closed housing is located between the water atomization device and the negative pressure blower. A device is provided, a first static pressure chamber is formed between the negative pressure blower and the heat exchange device, a second static pressure chamber is formed between the water atomization device and the heat exchange device, and a negative pressure chamber is formed between the water atomization device and the heat exchange device. A negative pressure environment is formed in the second static pressure chamber by the blower, and the water atomization device injects atomized water into the second static pressure chamber, thereby evaporating the atomized water and turning it into steam.

Furthermore, the pressure within the second static pressure chamber is 20 Pa or more lower than the ambient atmospheric pressure.

Furthermore, a pressure regulating device is provided within this second static pressure chamber, which is capable of promoting the flow of steam within the closed housing.

Furthermore, this pressure regulating device has an inlet port provided outside the closed housing, an outlet port provided inside the closed housing, and the airflow to be regulated enters the closed housing by the pressure regulating device, so that steam inside the closed housing It is possible to promote the flow of

Further, the pressure regulating device is a tubular structure, the tubular structure has an open end at one end and a closed end at the other end, and the open end of the tubular structure is located outside the closed housing, The portion of the tubular structure located within the closed housing is provided with a plurality of exhaust holes, and the airflow to be regulated enters the closed housing through the open end of the tubular structure, the exhaust holes.

Furthermore, the pressure regulating device is a fan.

Furthermore, this fan is provided inside the closed housing.

Further, the heat exchange device has a prismatic structure, and a water atomization device is provided correspondingly on one side of the prismatic structure, and a negative pressure blower is provided correspondingly on the other side of the prismatic structure.

Additionally, a plurality of spaced apart heat exchange devices are provided within the closed housing.

Furthermore, the water atomization device is provided at the bottom of the closed housing, and the negative pressure blower is provided at the top of the closed housing, and the water atomization device directs the generated atomized water into the closed housing from the bottom to the top. Inject.

Further, the water atomization device is provided at the top of the closure housing, the negative pressure blower is provided at the side wall of the closure housing, and the negative pressure blower is provided adjacent to the bottom of the side wall of the closure housing, and the water atomization device is provided at the bottom of the side wall of the closure housing. The device injects the generated atomized water into the closed housing from top to bottom.

Further, the heat exchange device has a V-shaped structure, the water atomization device is provided corresponding to two outer surfaces of the V-shaped structure, and the negative pressure blower is installed in the central chamber of the V-shaped structure. It is set up accordingly.

Furthermore, this heat exchange device has a cylindrical structure, the water atomization device is provided corresponding to the outer surface of the cylindrical structure, and the negative pressure blower is provided corresponding to the inner cavity of the cylindrical structure. It is being

Furthermore, the heat exchange device is a condenser.

Further, an intake pipeline and an exhaust pipeline are provided on the closed housing, and the exhaust pipeline is provided adjacent to the negative pressure blower, and the intake pipeline is provided remote from the negative pressure blower and is cooled. The substances enter the closed housing via the intake pipeline and are exhausted out of the closed housing via the exhaust pipeline.

The flash closed heat exchanger of the present invention has the following advantages:
1. In a closed negative pressure environment, promote the evaporation of atomized water to reduce the overall temperature in the closed environment, and the heat exchange device can achieve the effect of refrigeration by radiation in a low temperature environment, and the external Unaffected by natural wind temperature and humidity, can be applied to more different environmental areas,
2. In the refrigeration process, convective heat transfer with the external environment is not required, so the installed capacity of the flash closed heat exchanger of the present invention is small, the space occupied by the entire device is small, and it is easy to install, saving space. death,
3. The flash- closed heat exchanger of the present invention realizes freezing by completely evaporating atomized water, and in the process of water changing from a liquid state to a gas state, it can release cold heat and freeze the equipment. Since the temperature of the steam discharged by the refrigeration system does not rise, no heat is actually released into the atmosphere during the refrigeration process, and no heat island effect occurs.The refrigeration efficiency is not only high, but the refrigeration effect is stable and reliable.

FIG. 1 is a schematic diagram showing the configuration of a conventional heat exchanger. FIG. 1 is a schematic diagram showing the internal configuration of Example 1, which is a flash closed type heat exchanger of the present invention. FIG. 2 is a schematic diagram showing the internal configuration of Example 2, which is a flash closed type heat exchanger of the present invention. FIG. 3 is a schematic diagram showing the internal configuration of Example 3, which is a flash closed type heat exchanger of the present invention. FIG. 3 is a schematic diagram showing the internal configuration of Example 3, which is a flash closed type heat exchanger of the present invention. FIG. 4 is a schematic diagram showing the internal configuration of Example 4, which is a flash closed type heat exchanger of the present invention. FIG. 5 is a schematic diagram showing the internal configuration of Example 5, which is a flash closed type heat exchanger of the present invention. FIG. 3 is a schematic diagram showing the internal configuration of Example 6, which is a flash closed type heat exchanger of the present invention. FIG. 7 is a side sectional view of Example 7, which is a flash closed type heat exchanger of the present invention. FIG. 7 is a plan sectional view of Example 7, which is a flash closed type heat exchanger of the present invention. FIG. 3 is a schematic diagram showing the internal configuration of Example 8, which is a flash closed type heat exchanger of the present invention.

In order to better understand the purpose, structure and function of the present invention, the flash closed heat exchanger of the present invention will be explained in more detail below with reference to the drawings.

The flash closed type heat exchanger of the present invention includes a closed housing, and the side wall of the closed housing is provided with a negative pressure blower capable of maintaining the environment inside the closed housing in a stable negative pressure state. .
A water atomization device is provided inside the closed housing, and the water atomization device can convert water into atomized water, and the atomized water is stored in the negative inside the closed housing. It is sprayed into a pressurized environment and rapidly flashed into cold, moist steam, releasing cold heat and lowering the environmental temperature within the closed housing.

As shown in FIG. 2, the flash closed heat exchanger according to the first embodiment of the present invention has a rectangular shape, is surrounded by a panel structure, and includes a closed housing 101 with a storage chamber inside.
A water atomizer 102 is installed at the bottom of the storage chamber to inject the generated atomized water into the storage chamber from bottom to top, and a water atomizer 102 is installed at the top of the storage chamber to inject the generated atomized water into the storage chamber from the bottom to the top. A negative pressure blower 103 is provided to continuously discharge air outside the closed housing 101 to create a uniform and stable negative pressure environment within the storage chamber.
Preferably, the exhaust air volume of the negative pressure blower 103 is made larger than the amount of evaporation of the atomized water in the closed housing 101, so that on the one hand, the steam in the closed housing 101 is sufficiently exhausted, and the atomized water is evaporated. Evaporation efficiency can be improved while maintaining a negative pressure environment within the closed housing 101.

The atomized water generated by this water atomization device 102 is rapidly flashed in the negative pressure environment of the storage chamber, undergoes a phase change from water mist to steam, and absorbs heat to create an environment within the closed housing 101. Reduce temperature.
Then, the steam flashed from the atomized water can be discharged to the outside of the closed housing 101 by the negative pressure blower 103, so that the atomized water in the storage chamber is continuously evaporated into steam, releases cold heat, and becomes steam. is continuously discharged outside the closed housing 101 by the negative pressure blower 103 again, thereby completing the freezing.
Therefore, the low temperature environment within the closed housing 101 can be used to cool substances, lower the temperature, etc.

Specifically, the water atomization device 102 is provided at the bottom of the closed housing 101 and includes a water supply pipeline that communicates with a water tank or water pipe outside the closed housing 101 and continuously supplies water into the closed housing 101. , the water supply pipeline may be a single straight pipe, two or more pipes may be installed in parallel, or a single pipe may be adopted and arranged in a disc shape. It may be provided so as to rotate.
A plurality of high-pressure atomizing nozzles are distributed in the water supply pipeline, and the water in the water supply pipeline is ejected by the high-pressure atomization nozzle to form atomized water and disperse it into the storage chamber. be able to.
Of course, the high-pressure atomization nozzle may be replaced by an ultrasonic atomizer to form atomized water.

As shown in FIG. 3, the flash closed heat exchanger according to the second embodiment of the present invention includes a closed housing 201 having a rectangular shape, surrounded by a panel structure, and provided with a storage chamber inside.
A water atomizer 202 for spraying atomized water from top to bottom into the storage chamber is installed at the top of the storage chamber. A negative pressure blower 203 is provided to continuously exhaust gas within the housing 201 to the outside of the closed housing 201 to create a uniform and stable negative pressure environment within the storage chamber.
Preferably, the exhaust air volume of this negative pressure blower 203 is made larger than the amount of evaporation of the atomized water in the closed housing 201, so that on the one hand, the steam in the closed housing 201 is sufficiently exhausted and the atomized water is evaporation efficiency, while maintaining a negative pressure environment within the closed housing 201.

The water atomizer 202 is installed on the top of the closed housing 201 and includes a water supply pipeline that communicates with a water tank or water pipe outside the closed housing 201 and continuously supplies water into the closed housing 201.
This water supply pipeline is equipped with a plurality of distributed high-pressure atomization nozzles, and the water in the water supply pipeline is jetted out by the high-pressure atomization nozzles to form atomized water and dispersed into the storage chamber. can do.

The atomized water generated by the water atomization device 202 is rapidly flashed in the negative pressure environment of the storage chamber, undergoes a phase change from water mist to steam, and absorbs heat to reduce the environmental temperature inside the closed housing 201. The steam flashed from the atomized water can be continuously discharged out of the closed housing 201 by a negative pressure blower 203.

According to the above Examples 1 and 2, the basic cooling principle of the flash closed heat exchanger of the present invention is to promote the evaporation of water from the liquid state to the gas state in a closed environment to release cold heat. It is to be.
Among them, the factors that promote water evaporation are: (1) The larger the surface area of water, the greater the contribution to water evaporation; (2) The larger the negative pressure value of the environment, the more water molecules They tend to desorb from each other and form vapor.

Based on the above cooling principle, the specific method of promoting water evaporation from liquid state to gas state in the present invention is as follows:
First, the water atomization device is adopted to atomize water into small mist droplets, and the surface area of the water in the mist droplets is greatly increased, which can accelerate the evaporation, and at the same time, the movement of the water in the mist droplets can become active and disperse and float within the closed housing, accelerating heat exchange and evaporation.
Second, the closed housing cooperates with the negative pressure blower so that the space inside the closed housing always maintains a negative pressure environment, and the pressure inside the closed housing is 20 Pa or more lower than the ambient atmospheric pressure, in which case the original For water that has already been atomized into small mist droplets, it is easier for the water molecules on the surface to further desorb from the main body of the mist droplets and convert into steam.
Here, the ambient atmospheric pressure is the atmospheric pressure value of the working environment in which the flash closed heat exchanger is located.

A flash closed type heat exchanger according to a third embodiment of the present invention includes a closed housing 301 provided with a water atomization device 302 on one side and a negative pressure blower 303 on the other side. A heat exchange device is provided inside the water atomization device 302 and a negative pressure blower 303, and a first static pressure chamber is formed between the negative pressure blower 303 and the heat exchange device. A second static pressure chamber is formed between the atomization device 302 and the heat exchange device, a negative pressure environment is formed in the second static pressure chamber by the negative pressure blower 303, and the water atomization device 302 blows the atomized water. By injecting the atomized water into the second static pressure chamber, the atomized water is evaporated and becomes cold and humid steam.

The basic cooling principle in Example 3 is to promote the evaporation of water from liquid state to gaseous state and release cold heat in a closed environment.
Furthermore, the factors that promote water evaporation are: (1) The larger the surface area of water, the greater the contribution to water evaporation, and (2) The larger the negative pressure value of the environment, the more water molecules (3) The higher the temperature, the faster water evaporates.

Based on the above cooling principle, the specific method of promoting the evaporation of water from liquid state to gas state in the present invention is as follows:
First, the water atomization device is adopted to atomize water into small mist droplets, and the surface area of the water in the mist droplets is greatly increased, which can accelerate the evaporation, and at the same time, the movement of the water in the mist droplets can become active and disperse and float within the closed housing, accelerating heat exchange and evaporation.
Second, the closed housing cooperates with the negative pressure blower so that the second static pressure chamber and the first static pressure chamber in the closed housing always maintain a negative pressure environment, and the second static pressure chamber in the second static pressure chamber always maintains a negative pressure environment. If the pressure is 20 Pa or more lower than the ambient atmospheric pressure, in this case, the water that has already been atomized into small mist particles will become more easily detached from the main body of the mist particles, and will not be converted into steam. , it becomes easier.
The ambient atmospheric pressure here is the atmospheric pressure value of the working environment in which the flash closed heat exchanger is located.
Third, the high temperature medium flowing into the heat exchange device absorbs cold heat and releases heat in the closed housing to complete the heat exchange; in this case, the heat exchange device generates radiant heat; When the mist particles approach the heat exchange device, they accelerate their evaporation due to the action of radiant heat, and further absorb the heat of the high-temperature medium, lowering its temperature.

In addition, when the small mist particles that have not completely evaporated into steam pass through the heat exchange device, it is also possible to exchange heat by directly contacting the heat exchange device, which assists in temperature reduction and freezing. perform an action.
When water is atomized and becomes mist droplets, the volume becomes smaller, so it becomes easier to disperse and float, which improves the fluidity of the mist droplets and allows them to rapidly complete heat exchange with the heat exchange device. In the process of direct contact and heat exchange, most of the small volume of mist particles absorbs heat and evaporates into steam, which can greatly improve refrigeration efficiency.

In particular, it should be explained that, unlike the principle of conventional air cooling equipment, the housing adopted by the flash closed type heat exchanger of the present invention is a closed type, and this closed housing prevents outdoor air from entering the housing. This is to prevent excessive outdoor air from entering the closed housing and affecting the evaporation of atomized water within the closed housing.
Conventional air-cooled equipment is completely the opposite; heat exchange and refrigeration are realized by the air flowing through the heat exchange device in the equipment, so the larger the amount of air that enters the equipment housing, the more the cooling of the air-cooled equipment is The effect will be higher.

To further explain, the closed housing in the present invention is not equivalent to a completely sealed housing, and in actual production, gaps exist at the seams between the plates or between the plates and each component. If it is possible and the negative pressure blower exhausts the wind outside, air in the external environment may enter the closed housing through the gap.
Such a small amount of intake air does not affect the overall negative pressure environment inside the closed housing, and by adjusting the rotation speed of the negative pressure blower or the pressure regulating device, the negative pressure environment inside the closed housing can be relatively reduced. Since the pressure value can be kept stable, it does not affect the evaporation effect of atomized water, that is, it does not affect the refrigeration effect of the equipment.

The flash closed heat exchanger of the present invention can promote the evaporation of atomized water in a closed negative pressure environment, reduce the overall temperature in the closed environment, achieve the effect of refrigeration, and reduce the temperature of external natural wind. It is not affected by humidity and can be adapted to more areas with different environments, has high refrigeration efficiency, and has a stable and reliable refrigeration effect.

Specifically, as shown in FIG. 4, the flash closed heat exchanger according to the third embodiment of the present invention has a rectangular shape, is surrounded by a panel structure, and has a closed housing provided with a storage chamber inside. 301 included.

A water atomizer 302 is installed at the bottom of the storage chamber, a negative pressure blower 303 is installed at the top of the storage chamber, and a water atomizer 302 and a negative pressure blower 303 are installed at the center of the storage chamber. A heat exchange device 304 is provided between the two.
Furthermore, although the heat exchange device 304 used in this embodiment is a rectangular coil type condenser, this heat exchange device may be any other conventional heat exchanger and is not limited to a condenser. do not have.

Further, a second static pressure chamber 305 is formed between the heat exchange device 304 and the water atomization device 302, and a first static pressure chamber 306 is formed between the heat exchange device 304 and the negative pressure blower 303. The negative pressure blower 303 continuously discharges the gas inside the closed housing 301 to the outside of the closed housing 301 to create a uniform and stable negative pressure inside the second static pressure chamber 305 and the first static pressure chamber 306. Create a pressure environment.
Preferably, the exhaust air volume of the negative pressure blower 303 is made larger than the amount of evaporation of the atomized water in the closed housing 301, so that on the one hand, the steam in the closed housing 301 is sufficiently exhausted and the atomized water is evaporated. Evaporation efficiency can be improved while maintaining a negative pressure environment within the closed housing 301.

The water atomization device 302 injects the generated atomized water into the second static pressure chamber 305, and the atomized water rapidly evaporates in the negative pressure environment of the second static pressure chamber 305. The fog undergoes a phase change and becomes steam, which absorbs heat and lowers the environmental temperature inside the closed housing 301, and when the hot medium in the heat exchange device 304 passes through the low temperature environment inside the closed housing 301, it transfers cold heat. absorbs and lowers the temperature of the hot medium.

Since the first static pressure chamber 306 is also in a negative pressure environment, the steam evaporated in the second static pressure chamber 305 enters the first static pressure chamber 306 through the heat exchange device 304, and the negative pressure It is discharged out of the closed housing 301 by the blower 303.
As a result, the atomized water in the second static pressure chamber 305 continuously evaporates into steam, releases cold heat, and the steam is continuously discharged outside the closed housing 301 by the negative pressure blower 303 again. Complete freezing.

Specifically, the water atomization device 302 is provided at the bottom of the second static pressure chamber 305 and communicates with a water tank or water pipe outside the closed housing 301, and is a water supply pipe that continuously supplies water into the closed housing 301. The water supply pipeline may be a single straight pipe, two or more pipes may be arranged side by side, or a single pipe may be used. It may also be provided so as to rotate in a disk shape.
A plurality of high-pressure atomizing nozzles are distributed in the water supply pipeline, and the water in this water supply pipeline is ejected by the high-pressure atomization nozzles to form atomized water, and a second static pressure is generated. It can be distributed within the chamber 305.
Preferably, the high-pressure atomization nozzles are all provided facing the direction in which the heat exchange device 304 is located so as to better inject the atomized water to the heat exchange device 304.
Naturally, the high pressure atomization nozzle may be replaced by an ultrasonic atomizer to form the atomized water.

Additionally, a pressure regulator 307 is provided within the second static pressure chamber 305 that can promote the flow of steam and atomized water within the closed housing 301 .
Specifically, the pressure regulating device 307 includes a single elongated pipe provided in close proximity to the water atomizing device 302 , with a first end of the pipe extending into the second static pressure chamber 305 . the second end of the pipe is an open end located outside the closed housing 301, the pipe is located in a portion within the second static pressure chamber 305, and a plurality of exhaust holes are provided in the pipe wall. It will be opened in a distributed manner.
When the flash- closed heat exchanger operates, a small amount of outdoor air enters the pipe through the second end of the pipe and is blown into the water atomizer 302 through the plurality of exhaust holes, thereby producing a second The flow of atomized water and steam within the static pressure chamber 305 is accelerated to promote evaporation of the atomized water and exhaust of the steam.

A seal cover is provided at the second open end of this pipe, and if there is no need to promote the flow of atomized water and steam within the second static pressure chamber 305, the seal cover may be attached. The ingress of air can be blocked and the pressure regulating device 307 can be closed, and by adjusting the degree of sealing of the seal cover, the amount of air ingress can be controlled, and the atomized water and steam in the second static pressure chamber 305 can be controlled. The degree of flow can also be adjusted.

Note that, as shown in FIG . can promote the flow of steam and atomized water.

To further explain, based on the basic refrigeration principle of the flash closed heat exchanger of the present invention, the closed housing used in the present invention needs to suppress external natural wind from entering the closed housing; , does not collide with the pressure regulating device used in the present invention.
First, although the pressure regulating device allows external natural wind to enter the closed housing, the amount of air that can enter is very small, and the natural wind that enters through the gap between the housing plates is similar to that, none of them affect the normal operation of the equipment,
Second, the purpose of the pressure regulating device is to promote the flow of atomized water and steam after the water has evaporated by the movement of microairflow, and on the other hand, the flow of steam from the second static pressure chamber to the first The purpose is to accelerate the movement into the static pressure chamber to promote the evacuation of steam and, on the other hand, to promote the evaporation of the atomized water.
That is, the small amount of natural air entered into the closed housing by the pressure regulating device itself cannot achieve the effect of cooling the heat exchange device, which has an essential distinction from traditional air cooling equipment.

The present invention further provides a flash heat exchanger-based refrigeration method, which includes the following steps: the low-temperature atomized water droplets ejected from the nozzle of the water atomization device 302 are By the action of the pressure blower 303, the aerosol is gradually moved from the aerosol region (the second static pressure chamber 305 in FIG. 4) to the heat exchange region and the high negative pressure space region (the first static pressure chamber 306 in FIG. 4). , until it is discharged from the heat exchange device 304. During the entire process of floating and moving, each droplet continuously absorbs the amount of heat radiated from the heat exchange device 304, and the surface of the droplet water molecules escape from the acting force inside the small water droplet due to the dual action of negative pressure and radiation, and then form water molecules in a gaseous state, and the continuously supplied atomized water is heated The heat in the exchange device 304 is constantly carried away and discharged, the temperature of the refrigerating medium in the heat exchange device 304 is reduced, and water vapor and unevaporated water droplets are discharged from the closed housing 301 under the effect of negative pressure.
The cavity formed by this closed housing 301 forms a high negative pressure region in a portion close to the negative pressure blower 303, continuously exhausts water vapor in the cavity from the closed housing 301, and a heat exchange device 304 is arranged. The area that is closed is the heat exchange area, and the area that is close to the water atomizer 302 is the aerosol area.
From a macroscopic point of view, as the water droplets move from bottom to top in the cavity, water molecules on the surface of the water droplet absorb heat due to non-boiling phase change evaporation due to the action of negative pressure, and absorb heat in the heat exchange device 304. Constant carrying has the effect of lowering the temperature of the medium within the heat exchange device 304.

Further, the pressure regulating device 307 is installed close to the water atomizing device 302, and the gas that enters through the pressure regulating device 307 and the water that is dispersed and floats in the cavity of the closed housing 301 in a negative pressure environment. The mist forms an aerosol, and the heat exchange device 304 exchanges radiant heat with the water mist. The water mist undergoes a non-boiling phase change to remove heat, and the water vapor and unevaporated water mist are returned to the atmosphere. emitted directly to

As an example, the inner wall of the closed housing 301 and/or the surface of the heat exchange device 304 may be coated with a water repellent, and the water repellent may belong to a non-polluting and non-polluting superhydrophobic material, and the ejected fine particles may be It is possible to avoid to the maximum extent that large water droplets collide and combine to form super-large water droplets and combine on the inner wall of the closed housing 301 and the surface of the heat exchange device 304, and form water droplets that are applied to the wall to generate heat. Avoid affecting exchange efficiency.
Then, the fine water droplets floating in the aerosol region perform sufficient radiant heat exchange with the heat exchange device 304 for a longer period of time.
The negative pressure blower 303 is a magnetically levitated negative pressure blower, and this magnetically levitated negative pressure blower employs technologies such as a magnetically levitated bearing, a high-speed permanent magnet synchronous motor, and a speed control using a high-efficiency inverter. , it floats first and then rotates, there is no friction, there is no need for lubrication, and the configuration of a conventional magnetically levitated negative pressure blower can be adopted, and the specific configuration will not be described here.
The magnetically levitated negative pressure blower creates a lower negative pressure environment inside the relatively closed closed housing 301, and enhances the evaporative heat exchange amount of the water droplets in a broad sense.
In the magnetic levitation blower, by increasing the rotation speed of the blower, the negative pressure inside the closed housing 301 becomes higher, and higher refrigeration efficiency can be obtained.
The water atomization device 302 has a first temperature cooling function after spouting water mist, so the water can be used directly under different temperature conditions and humidity conditions, and there is no need to treat the water. It can meet the usage requirements without having to use it, further reducing costs.

The water atomizer 302 can be a high-pressure pump atomizer, and the high-pressure water generated by the high-pressure water pump is atomized by a nozzle, or the water atomizer 302 can be a compressed air type An atomizer can be selected, the jetting head being connected to an air compressor by an air compressor interface and to a water storage device by a water inlet, so that the water flows under the action of the high pressure gas generated in the air compressor. Alternatively, the water atomizer 302 can be an ultrasonic atomizer, and the ultrasonic atomizer is an ultrasonic atomizer that atomizes water in cooperation with ultrasonic waves. Including the conversion sheet.

As shown in FIG. 6, the flash closed heat exchanger according to the fourth embodiment of the present invention includes a closed housing 401 having a rectangular shape, surrounded by a panel structure, and having a storage chamber therein.
A water atomizer 402 is installed at the top of the storage chamber, a negative pressure blower 403 is installed at the side wall of the closed housing 401 near the bottom of the storage chamber, and a negative pressure blower 403 is installed at the center of the storage chamber. A heat exchange device 404 located between the water atomization device 402 and the negative pressure blower 403 is provided.

A second static pressure chamber 405 is formed between the heat exchange device 404 and the water atomization device 402, and a first static pressure chamber 406 is formed between the heat exchange device 404 and the negative pressure blower 403. , the negative pressure blower 403 continuously exhausts the gas inside the closed housing 401 to the outside of the closed housing 401 to create a uniform and stable negative pressure environment in the second static pressure chamber 405 and the first static pressure chamber 406. to form.

The water atomization device 402 injects the generated atomized water into the second static pressure chamber 405, and this atomized water rapidly evaporates in the negative pressure environment of the second static pressure chamber 405. The water mist undergoes a phase change into steam, absorbs heat, and lowers the environmental temperature inside the closed housing 401, so that when the hot medium inside the heat exchange device 404 passes through the low temperature environment inside the closed housing 401, It absorbs cold energy and lowers the temperature of the hot medium.

The steam evaporated in the second static pressure chamber 405 enters the first static pressure chamber 406 through the heat exchange device 404, and is discharged outside the closed housing 401 by the negative pressure blower 403, until it is completely evaporated. Water that is not present or is not sufficiently atomized into mist particles flows through the heat exchange device 404 and then flows to the bottom of the first static pressure chamber 406 where a water recovery line is provided. The water collected can be discharged out of the first static pressure chamber 406 via a water recovery line.
As a result, the atomized water in the second static pressure chamber 405 continuously evaporates into steam and releases cold heat, and the steam is further continuously discharged outside the closed housing 401 by the negative pressure blower 403. , complete freezing.

Preferably, the water recovery line and the water atomizer 402 communicate with each other, and after the water discharged by the water recovery line is recovered, the water passes through the water atomizer 402 again and is atomized.

Specifically, the water atomization device 402 is a water supply pipe that is provided at the top of the second static pressure chamber 405 and communicates with a water tank or water pipe outside the closed housing 401 to continuously supply water into the closed housing 401. A plurality of high-pressure atomizing nozzles are distributed in the water supply pipeline, and the water in the water supply pipeline is ejected by the high-pressure atomization nozzles to form atomized water, and a second can be dispersed into the static pressure chamber 405 of.

As shown in FIG. 7, the difference from the third embodiment is that the heat exchange device 504 in the closed housing 501 used in the fifth embodiment includes three sets, and these three sets of heat exchange devices 504 are arranged vertically. Water atomization devices 502 are provided at intervals and below each set of heat exchange devices 504 .
A negative pressure blower 503 is provided at the top of the closed housing 501, a first static pressure chamber 506 is formed between the uppermost heat exchange device 504 and the closed housing 501, and the negative pressure blower 503 rotates. By moving, a negative pressure environment is formed between the three sets of heat exchange devices 504 and their corresponding water atomization devices 502, promoting the phase change from atomized water to steam, and the steam is It enters the first static pressure chamber 506 through the exchange device 504 and is discharged out of the closed housing 501 by the negative pressure blower 503 .

Of course, the heat exchange devices 504 in the fifth embodiment may be two or more sets vertically spaced apart.

As shown in FIG. 8, the difference from the third embodiment is that the heat exchange device 604 in the closed housing 601 used in the sixth embodiment is provided in a V-shape; The V-shaped opening is provided toward the negative pressure blower 603 at the top of the closed housing 601.

Furthermore, a water atomizer 602 is provided on the inner surface of the closed housing 601 adjacent to both sides of the V-shaped heat exchange device 604, and a water atomizer 602 is also provided at the bottom of the closed housing 601. A second static pressure chamber 605 is formed between the water atomization device 602 and the V-shaped heat exchange device 604, and a second static pressure chamber 605 is formed between the intermediate portion of the V-shaped heat exchange device 604 and the negative pressure blower 603. A first static pressure chamber 606 is formed therein.

By rotating, this negative pressure blower 603 forms a negative pressure environment in the second static pressure chamber 605 and the first static pressure chamber 606 in the closed housing 601, and the water atomization device 602 The atomized water is injected into the V-shaped heat exchange device 604 by a high-pressure atomization nozzle, and the atomized water evaporates into steam in the second static pressure chamber 605, and this steam passes through the heat exchange device 604. It enters the first static pressure chamber 606 and is discharged out of the closed housing 601 by the negative pressure blower 603.

Furthermore, a pressure regulating device 607 is provided in the closed housing 601 adjacent to the water atomization device 602, which includes two fans installed symmetrically on both sides of the V-shaped heat exchange device 604, and the fans are used to atomize the water. Located next to the device 602, a fan can rotate to promote the flow of steam and atomized water within the closed housing 601.
Of course, the fan may be installed directly in the water atomization device 602, or the number of fans installed may be one or more.

The fan can be fixedly installed on the inner wall of the closed housing 601 so as to be completely located inside the closed housing 601, and a small circular hole is opened in the side wall of the closed housing 601, and the fan is installed in the small circular hole. Thereby, a small amount of external natural wind can also enter the interior of the closed housing 601 by the fan to promote the flow of steam and atomized water.

The surface area of this V-shaped heat exchange device 604 is larger, and the evaporation efficiency of atomized water is higher, which further improves the overall refrigeration effect of the flash closed heat exchanger.

As shown in FIGS. 9 and 10, the difference from the third embodiment is that the closed housing 701 used in the seventh embodiment has a cylindrical shape as a whole, and the storage chamber formed inside the closed housing 701 also has a cylindrical shape. It is to present the following.
A heat exchange device 704 having a hollow cylindrical shape as a whole is provided in the middle of this storage chamber.
A water atomization device 702 including a water supply pipeline is provided on the side wall of the closed housing 701, and the water supply pipeline is arranged uniformly distributed throughout the side wall of the closed housing 701, and the water supply pipeline has a plurality of high-pressure atomization units. The nozzles are distributed.

A second static pressure chamber 705 is formed between the water atomization device 702 and the cylindrical heat exchange device 704, and a hollow structure in the middle of the cylindrical heat exchange device 704 forms a first static pressure chamber 706. form.
A negative pressure blower 703 is provided at the top of the closed housing 701 and communicates directly with the first static pressure chamber 706 .

By rotating this negative pressure blower 703, a negative pressure environment is formed in the second static pressure chamber 705 and the first static pressure chamber 706 in the closed housing 701, and the water atomization device 702 The atomized water is injected into the cylindrical heat exchange device 704 by a high-pressure atomization nozzle, and the atomized water evaporates into steam in the second static pressure chamber 705, and the steam passes through the heat exchange device 704 into the first The air enters the static pressure chamber 706 and is discharged out of the closed housing 701 by the negative pressure blower 703.

Further, a pressure regulating device 707 including a plurality of fans is provided in the closed housing 701 close to the water atomization device 702, and the plurality of fans are distributed and installed inside the side wall of the closed housing 701, and the fans rotate. can be moved to facilitate the flow of steam and atomized water within the closed housing 701.
Of course, this fan may be installed directly on the water atomization device 702, and the number of fans installed can be adaptively adjusted according to the size of the closed housing 701.

The fan can be fixedly installed on the inner wall of the closed housing 701 so as to be completely located inside the closed housing 701, and a small circular hole is opened in the side wall of the closed housing 701, and the fan is installed in the small circular hole. Then, a small amount of external natural wind can also enter the interior of the closed housing 701 by a fan to promote the flow of steam and atomized water.

The surface area of such a cylindrical heat exchange device 704 is larger, and the atomized water generated by the water atomization device 702 circulates around the entire surface of the cylindrical heat exchange device 704. evaporation efficiency is higher, which further improves the overall refrigeration effect of the flash- closed heat exchanger.

The difference from Examples 3 to 7 is that the flash closed heat exchanger of Example 8 can directly cool substances that require cooling by using the low-temperature environment in the closed space. and there is no need to transfer the temperature by means of a heat exchange device or medium.

As shown in FIG. 11, the flash closed heat exchanger includes a closed housing 801 in which a storage chamber is formed, and a water atomization device 802 is provided in the storage chamber, and the water atomization device 802 includes: By being located on the side wall of the closed housing 801 and spraying the atomized water to the center of the storage chamber, the small mist particles can be well dispersed within the storage chamber of the closed housing 801.

Furthermore, the water atomization device 802 includes a water supply pipeline that is provided on the side wall of the closed housing 801, communicates with a water tank or water pipe outside the closed housing 801, and continuously supplies water into the closed housing 801. The pipeline may be a single straight pipe, two or more pipes may be arranged in parallel, or a single pipe may be used to circulate in a disk shape. It may be provided as follows.
A plurality of high-pressure atomizing nozzles are distributed in the water supply pipeline, and the water in the water supply pipeline can be ejected by the high-pressure atomization nozzles to form atomized water.
Of course, the high-pressure atomization nozzle may be replaced by an ultrasonic atomizer to form atomized water.

Furthermore, a negative pressure blower 803 is provided in the upper part of the closed housing 801, one side of the negative pressure blower 803 communicates with the storage chamber of the closed housing 801, and the other side is connected to an exhaust pipeline 808. However, the gas inside the closed housing 801 is continuously exhausted by the exhaust pipeline 808 to maintain a stable negative pressure environment inside the closed housing 801, and the negative pressure environment promotes the evaporation of atomized water into vapor. It emits cold heat.
An intake pipeline 809 is connected to the lower part of the closed housing 801 , and a communication portion between the intake pipeline 809 and the closed housing 801 is connected such that the amount of intake air in the intake pipeline 809 is smaller than the amount of exhaust air in the exhaust pipeline 808 . A valve 810 is provided that can control the amount of intake air in the intake pipeline 809 to maintain a stable negative pressure environment within the closed housing 801.

Preferably, the exhaust air volume of the negative pressure blower 803 is greater than the amount of evaporation of atomized water within the closed housing 801, and the pressure within the closed housing 801 is 20 Pa or more lower than the ambient atmospheric pressure.

Taking indoor air cooling as an example, the water atomizer 802 injects atomized water into the closed housing 801, and the negative pressure blower 803 maintains a negative pressure environment inside the closed housing 801, converting the liquid state into gas. promotes the conversion of water into a state, releases cold heat, and reduces the temperature within the closed housing 801.
Both the intake pipeline 809 and the exhaust pipeline 808 communicate with the indoor environment, and the indoor air enters the closed housing 801 through the intake pipeline 809 and is cooled in the low temperature environment inside the closed housing 801 to reduce the temperature. After lowering the temperature, the negative pressure blower 803 rotates to exhaust the air through the exhaust pipeline 808 and return to the room, thereby achieving the effect of lowering the temperature of the indoor environment.
Of course, the intake pipeline 809 and the exhaust pipeline 808 may also pass other substances that need to be cooled.

The flash closed heat exchanger of the present invention has the following advantages:
1. In a closed negative pressure environment, promote the evaporation of atomized water and reduce the overall temperature in the closed environment, the heat exchange device can achieve the effect of refrigeration by radiation in a low temperature environment, and the external Unaffected by natural wind temperature and humidity, can be applied to more different environmental areas,
2. In the refrigeration process, convective heat transfer with the external environment is not required, so the installed capacity of the flash closed heat exchanger of the present invention is small, the space occupied by the entire device is small, and it is easy to install, saving space. death,
3. The flash- closed heat exchanger of the present invention realizes freezing by completely evaporating atomized water, and in the process of water changing from a liquid state to a gas state, it can release cold heat and freeze the equipment. Since the temperature of the steam discharged by the refrigeration system does not rise, no heat is actually released into the atmosphere during the refrigeration process, and no heat island effect occurs.The refrigeration efficiency is not only high, but the refrigeration effect is stable and reliable.

Although the present invention has been further explained by specific examples, the substance and scope of the present invention are not limited thereto.
Various modifications to the above embodiments all fall within the protection scope of the present invention.

Claims (16)

includes a closed housing;
The closed housing is provided with a negative pressure blower that creates a negative pressure environment inside the closed housing,
A water atomization device is provided in the closed housing, and the water atomization device injects the atomized water into the interior of the closed housing to evaporate the atomized water into steam in a negative pressure environment;
The water atomization device is provided on one side of the closed housing, and the negative pressure blower is provided on the other side,
a heat exchange device located between the water atomization device and the negative pressure blower is provided inside the closed housing;
A first static pressure chamber is formed between the negative pressure blower and the heat exchange device,
a second static pressure chamber is formed between the water atomization device and the heat exchange device;
A negative pressure environment is formed in the second static pressure chamber by the negative pressure blower, and the atomized water is evaporated by injecting the atomized water into the second static pressure chamber by the water atomization device. so that it turns into steam,
A flash closed type heat exchanger, characterized in that a pressure regulating device capable of promoting the flow of steam within the closed housing is provided in the second static pressure chamber. The flash closed type heat exchanger according to claim 1, wherein the exhaust air volume of the negative pressure blower is larger than the evaporation volume of the atomized water in the closed housing. The flash closed heat exchanger according to claim 1, wherein the pressure of the negative pressure environment within the closed housing is 20 Pa or more lower than the ambient atmospheric pressure. The flash closed heat exchanger according to claim 1, wherein the pressure in the second static pressure chamber is 20 Pa or more lower than the ambient atmospheric pressure . The pressure regulating device has an intake port provided outside the closed housing, and an exhaust port provided inside the closed housing,
2. The flash closed heat exchanger of claim 1, wherein a regulated air flow is capable of being admitted into the closed housing by the pressure regulating device to promote steam flow within the closed housing. The pressure regulating device has a tubular structure,
The tubular structure has an open end provided with the intake port at one end, and a closed end at the other end,
an open end of the tubular structure is located outside the closed housing;
a plurality of the exhaust ports are provided in a portion of the tubular structure located within the closed housing;
6. The flash closed heat exchanger of claim 5, wherein the conditioned airflow enters the closed housing through an open end of the tubular structure and an exhaust port. The flash closed heat exchanger according to claim 1, wherein the pressure regulating device is a fan. 8. The flash closed heat exchanger of claim 7, wherein the fan is located inside the closed housing. The heat exchange device has a prismatic structure,
The flash closed type according to claim 1, characterized in that the water atomization device is provided correspondingly on one side of the square structure, and the negative pressure blower is provided correspondingly on the other opposing side. Heat exchanger. 10. The flash closed heat exchanger of claim 9, wherein a plurality of spaced apart heat exchange devices are provided within the closed housing. the water atomization device is provided at the bottom of the closed housing;
the negative pressure blower is provided at the top of the closed housing;
11. The flash closed heat exchanger according to claim 9 or 10, wherein the water atomization device injects the generated atomized water into the closed housing from bottom to top. the water atomization device is provided on the top of the closed housing;
the negative pressure blower is provided at a lower part of the side wall of the closed housing;
The flash closed heat exchanger according to claim 9 or 10, characterized in that the water atomization device injects the generated atomized water into the closed housing from top to bottom. The heat exchange device has a V-shaped structure,
The water atomization device is provided corresponding to two outer surfaces of the V-shaped structure,
The flash closed heat exchanger according to claim 1, wherein the negative pressure blower is provided corresponding to a central chamber of a V-shaped structure. The heat exchange device has a cylindrical structure,
The water atomization device is provided corresponding to the outer surface of the cylindrical structure,
The flash closed heat exchanger according to claim 1, wherein the negative pressure blower is provided corresponding to a cavity inside the cylindrical structure. The flash closed heat exchanger according to claim 1, wherein the heat exchange device is a condenser. an intake pipeline and an exhaust pipeline are provided on the closed housing;
The exhaust pipeline is provided closer to the negative pressure blower than the intake pipeline,
The intake pipeline is provided farther from the negative pressure blower than the exhaust pipeline,
4. The substance to be cooled enters the closed housing via the intake pipeline and is discharged outside the closed housing via the exhaust pipeline. The flash closed heat exchanger according to item 1.