Cooling and heat recovery multipurpose air conditioning system based on separated heat pipe heat exchange

Abstract

The utility model discloses a cooling and heat recovery multipurpose air conditioning system based on separated heat pipe heat exchange, and mainly relates to the field of air conditioning systems. Comprising an outdoor box body and an indoor box body, an air inlet, a filter screen, an EC fan, a direct evaporation cooling assembly and an air outlet are arranged in each of the outdoor box body and the indoor box body, a separation type heat pipe heat exchanger condensation end is further arranged in the outdoor box body, and a separation type heat pipe heat exchanger evaporation end is further arranged in the indoor box body. The device has the advantages that natural cold sources can be fully utilized, sensible heat and latent heat are effectively combined in cooling, the device is suitable for occasions where ventilation cooling cannot be directly conducted in plants or tall workshops, the device can be used for recycling heat of exhausted air in the plants or the tall workshops in winter to be used for preheating fresh air, and energy is saved. And the application range of the heat pipe technology is expanded, energy conservation and environmental protection are achieved, and good practicability is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to air conditioning system field, concretely is a kind of cooling and heat recovery multipurpose air conditioning system based on separate heat pipe heat exchange. BACKGROUND

[0002] At present, heat pipe heat exchanger as the equipment with high heat exchange efficiency has high practical value in recovering heat, improving energy utilization and reducing carbon emissions. The main purpose of its research is to improve the heat exchange efficiency of heat pipe heat exchanger, and its heat exchange efficiency has reached more than 60%, under the background of double carbon of "carbon peak and carbon neutralization", the energy consumption of industrial plant is more and more large, and at present, it is mostly used to compress the refrigeration, resulting in the large use and loss of energy, so a kind of natural cold source is needed to be fully utilized as the supplement of compression refrigeration to cool industrial plant (high space) to reduce the electric energy use of industrial plant (high space) of air conditioning system.

[0003] In winter, in order to realize the preheating of fresh air of industrial plant (high space), the temperature of fresh air directly entering indoor is not too low, indoor needs to be heated or preheated, and outdoor air needs to be directly discharged, so a kind of air conditioning system capable of heat recovery can be completely designed, and China has vast territory, so there is certain limitation in simply using heat pipe heat exchange, so more technical means are needed to increase the application range of heat pipe heat exchange technology. CONTENT OF UTILITY MODEL

[0004] The utility model aims at providing a kind of cooling and heat recovery multipurpose air conditioning system based on separate heat pipe heat exchange, it can fully utilize natural cold source, effectively combine sensible heat and latent heat two heat exchange modes in cooling, applicable to the occasion that workshop or high workshop cannot directly ventilate and cool, it can also be used to heat recovery of exhaust heat in winter in workshop or high workshop for fresh air preheating, expand the application range of heat pipe technology, energy saving and environmental protection, with good practicality.

[0005] The utility model realizes the above-mentioned purpose by the following technical scheme:

[0006] The utility model provides a kind of cooling and heat recovery multipurpose air conditioning system based on separate heat pipe heat exchange, including outdoor cabinet and indoor cabinet, the outdoor cabinet and indoor cabinet are equipped with air inlet, filter screen, EC fan, direct evaporative cooling component, air outlet, the outdoor cabinet is also equipped with separate heat pipe heat exchanger condensing end, the indoor cabinet is also equipped with separate heat pipe heat exchanger evaporation end, and circulation passage is formed between separate heat pipe heat exchanger evaporation end and separate heat pipe heat exchanger condensing end by gas pipe and liquid pipe of working medium, the outdoor cabinet is arranged as filter screen, EC fan, direct evaporative cooling component, separate heat pipe heat exchanger condensing end along the direction of air inlet to air outlet, and the indoor cabinet is arranged as filter screen, separate heat pipe heat exchanger evaporation end, direct evaporative cooling component, EC fan along the direction of air inlet to air outlet.

[0007] Further, the direct evaporative cooling component includes an evaporative cooling core, a spray row disposed on top of the evaporative cooling core, a water tray disposed on bottom of the evaporative cooling core, a spray pump connected to one side of the water tray, and a water replenishment solenoid valve pipeline disposed on the water tray, the spray pump is connected to the spray row through a spray pipeline.

[0008] Further, the direct evaporative cooling component in the indoor cabinet further includes a water baffle disposed on one side of the evaporative cooling core.

[0009] Further, the multipurpose air conditioning system can select two operation modes of summer cooling and winter heat recovery according to needs, and according to different outdoor and indoor environment temperatures and relative humidities, four operation modes are divided, including dry working condition operation, outdoor wet working condition and indoor dry working condition, outdoor wet working condition and indoor wet working condition, and outdoor dry working condition and indoor wet working condition.

[0010] Compared with the prior art, the utility model has the beneficial effects that:

[0011] The patent utilizes natural cold source for temperature adjustment through direct evaporative cooling component and separate heat pipe heat exchanger, effectively combines two heat exchange modes of sensible heat and latent heat in industrial plant cooling with high space according to different outdoor weather conditions, maximally controls the temperature of industrial plant, realizes energy-saving and cooling, and different operation modes can be selectively started, the installation positions of indoor cabinet and outdoor cabinet are flexible, operation cost is low, and the utility model is especially suitable for places such as plant or high workshop which cannot be directly ventilated and cooled, can maximally reduce the temperature in space, saves initial investment and has low operation cost, the patent system can also be used for heat recovery of exhaust air in winter fresh air exhaust replacement for preheating of fresh air, can adjust humidity of winter fresh air, therefore expands the application range of heat pipe technology, is energy-saving and environment-friendly, and has good practicability. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure Figure 1 is a structural schematic diagram of the utility model.

[0013] Reference signs shown in the drawings:

[0014] 1, outdoor box; 2, indoor box; 3, air inlet; 4, filter screen; 5, EC fan; 6, direct evaporative cooling assembly; 7, air outlet; 8, separated heat pipe heat exchanger condensing end; 9, separated heat pipe heat exchanger evaporation end; 10, evaporative cooling core; 11, spray row; 12, water tray; 13, spray pump; 14, water replenishing electromagnetic valve pipeline; 15, spray pipeline; 16, water baffle. DETAILED DESCRIPTION

[0015] The utility model is further described below in combination with specific embodiments. It should be understood that these embodiments are only used for illustrating the utility model and are not used for limiting the scope of the utility model. In addition, it should be understood that after reading the content taught by the utility model, those skilled in the art can make various changes or modifications to the utility model, and these equivalent forms also fall within the scope defined by the present application.

[0016] The utility model relates to a kind of cooling and heat recovery multipurpose air conditioning system based on separated heat pipe heat exchange, main body structure includes being arranged in outdoor outdoor box 1 and being arranged in indoor indoor box 2, the outdoor box 1 and indoor box 2 are all equipped with air inlet 3, filter screen 4, EC fan 5, direct evaporative cooling assembly 6, air outlet 7, the outdoor box 1 is also equipped with separated heat pipe heat exchanger condensing end 8, the indoor box 2 is also equipped with separated heat pipe heat exchanger evaporation end 9, separated heat pipe heat exchanger evaporation end 9 and separated heat pipe heat exchanger condensing end 8 are connected by the gas pipe, liquid pipe of heat pipe working medium after forming circulation passage, make the gas that separated heat pipe heat exchanger evaporation end 9 in working medium heat exchange evaporates into into separated heat pipe heat exchanger condensing end 8 heat exchange and condenses into liquid again to separated heat pipe heat exchanger evaporation end 9 carries out next heat exchange evaporation, forms circulation passage, in addition, if outdoor box 1 is higher than indoor box 2 when actual installation, then separated heat pipe heat exchanger evaporation end 9 and separated heat pipe heat exchanger condensing end 8 between working medium pump can be dispensed with, if outdoor box 1 is lower than indoor box 2 when actual installation, then working medium pump is set up on the liquid pipe of heat pipe working medium, the outdoor box 1 is along air inlet 3 to air outlet 7 direction and be set as filter screen 4, EC fan 5, direct evaporative cooling assembly 6, separated heat pipe heat exchanger condensing end 8 respectively, the indoor box 2 is along air inlet 3 to air outlet 7 direction and be set as filter screen 4, separated heat pipe heat exchanger evaporation end 9, direct evaporative cooling assembly 6, EC fan 5 respectively.

[0017] Preferably, the direct evaporative cooling assembly 6 comprises an evaporative cooling core 10, a spray row 11 arranged on the top of the evaporative cooling core 10, a water tray 12 arranged on the bottom of the evaporative cooling core 10, a spray pump 13 connected to one side of the water tray 12, and a water replenishing solenoid valve pipeline 14 arranged on the water tray 12, which can replenish water in the water tray 12 at any time, spray water to the evaporative cooling core 10 through the spray row 11, and the spray pump 13 is connected to the spray row 11 through a spray pipeline 15.

[0018] Preferably, the direct evaporative cooling assembly 6 in the indoor cabinet 2 further comprises a water baffle 16 arranged on one side of the evaporative cooling core 10.

[0019] Preferably, the multi-purpose air conditioning system can select two operation modes of summer cooling and winter heat recovery according to needs, and according to different outdoor and indoor environment temperatures and relative humidities, can be divided into four operation modes of dry working condition, outdoor wet working condition and indoor dry working condition, outdoor wet working condition and indoor wet working condition, and outdoor dry working condition and indoor wet working condition.

[0020] Specifically:

[0021] When the summer dry working condition (neither the indoor side nor the outdoor side is sprayed) is operated:

[0022] The separation type heat pipe heat exchanger evaporating end 9 located in the indoor cabinet 2 is arranged in multiple groups, and under the action of the EC fan 5 arranged in the indoor cabinet 2, exchanges heat with the hot air of the indoor side return air filtered and dedusted by the filter screen 4 at the air inlet 3 of the indoor cabinet 2. The evaporation temperature of each group of evaporating ends is different from high to low, the return air is subjected to gradient cooling, the heat pipe working medium in the separation type heat pipe heat exchanger evaporating end 9 is evaporated and absorbs heat from liquid to gas, and is respectively lifted to the corresponding separation type heat pipe heat exchanger condensing end 8 through multiple groups of gas pipes. The gaseous heat pipe working medium is cooled and condensed into liquid heat pipe working medium by the air from the outdoor environment under the action of the EC fan 5 in the outdoor cabinet 1, and is transported again into the separation type heat pipe heat exchanger evaporating end 9 through multiple groups of liquid pipes. If the outdoor cabinet 1 is higher than the indoor cabinet 2 during actual installation, the working medium pump can be omitted. If the outdoor cabinet 1 is lower than the indoor cabinet 2 during actual installation, a working medium pump needs to be matched on the liquid pipe, and the working medium pump needs to be started.

[0023] When the summer outdoor dry working condition and indoor wet working condition is operated:

[0024] When only dry operation (no spraying on both indoor and outdoor sides) is used, and all the heat cannot be taken away, first determine whether the indoor air flow meets the requirement of the relative humidity set value. If the relative humidity is lower than the set value of 50% when the dry bulb temperature of the air flow meets the requirement of the air supply condition, start the outdoor dry operation and indoor wet operation. At this time, open the spraying pump 13 of the indoor tank 2, and periodically open the water supply electromagnetic valve pipeline 14. Under the action of the EC fan 5 in the indoor tank 2, the hot air of the indoor return air after filtering and removing dust through the filter screen 4 at the air inlet 3 of the indoor tank 2 exchanges heat with the separated heat pipe heat exchanger evaporation end 9, and then enters the direct evaporative cooling component 6 of the indoor tank 2. Under the action of the spraying pump 13 of the indoor tank 2, the tap water sprayed by the spraying row 11 of the indoor tank 2 exchanges heat and humidity in the evaporative cooling core 10 of the indoor tank 2. The tap water evaporates and absorbs heat, further reducing the air temperature. The cooled tap water in the later stage enters the water tray 12 of the indoor tank 2. The return air after two-stage cooling is sent to the indoor air conditioning area through the air outlet 7 of the indoor tank 2 under the action of the EC fan 5 in the indoor tank 2.

[0025] Summer outdoor wet operation and indoor dry operation:

[0026] When only dry operation (no spraying on both indoor and outdoor sides) is used, and all the heat cannot be taken away, first determine whether the outdoor air flow meets the requirement of the relative humidity set value. If the relative humidity is higher than the set value of 50% when the dry bulb temperature of the air flow meets the requirement of the air supply condition, start the outdoor wet operation and indoor dry operation. At this time, open the spraying pump 13 of the outdoor tank 1, and periodically open the water supply electromagnetic valve pipeline 14 of the outdoor tank 1. Under the action of the EC fan 5 in the outdoor tank 1, the fresh air from the air inlet 3 of the outdoor tank 1 is filtered through the filter screen 4, and then enters the direct evaporative cooling component 6 of the outdoor tank 1. Under the action of the spraying pump 13 of the outdoor tank 1, the tap water sprayed by the spraying row 11 of the outdoor tank 1 exchanges heat and humidity in the evaporative cooling core 10 of the outdoor tank 1. The tap water evaporates and absorbs heat, and at the same time, the air temperature is reduced. The naturally cooled tap water in the later stage enters the water tray 12 of the outdoor tank 1. The fresh air after direct evaporative cooling and temperature reduction enters the separated heat pipe heat exchanger condensing end 8, and the heat pipe working medium is naturally cooled and condensed into a liquid after being cooled by cold air, and then enters the separated heat pipe heat exchanger evaporation end 9. Under the action of the EC fan 5 in the indoor tank 2, the hot air exchanges heat with the indoor return air from the air inlet 3 of the indoor tank 2, and then is supplied, and the cycle is repeated.

[0027] Summer outdoor wet operation and indoor dry operation:

[0028] When only dry operation (no spraying on the indoor side and the outdoor side) is used, and all the heat cannot be taken away, and the relative humidity of the indoor air flow is lower than the set value of 50% when reaching the dry bulb temperature of the supply air condition, the outdoor wet operation and indoor wet operation are started at this time. At this time, the spraying pump 13 of the outdoor cabinet 1 and the spraying pump 13 of the indoor cabinet 2 are started, and the evaporation cooling is used on the indoor side and the outdoor side at the same time. At this time, the cooling is divided into three steps, that is, after the outdoor side is cooled by evaporation cooling, the cold source is provided for the condensing end 8 of the separated heat pipe heat exchanger, the liquid working medium is provided for the evaporation heat exchange of the evaporation end 9 of the separated heat pipe heat exchanger, which is used for the first cooling of the indoor air, and the evaporation cooling of the evaporation end 9 of the separated heat pipe heat exchanger of the indoor cabinet 2 itself is used for the secondary cooling of the indoor hot air.

[0029] Winter indoor heat collection operation:

[0030] When the air conditioning system is used for winter operation, the air inlet 3 of the indoor cabinet 2 is connected with the indoor environment, the air outlet 7 of the indoor cabinet 2 is connected with the outdoor environment, the air inlet 3 of the outdoor cabinet 1 is connected with the outdoor environment, and the air outlet 7 of the outdoor cabinet 1 is connected with the indoor environment.

[0031] At this time, the indoor return air passes through the air pipe of the heat exchanger, and the heat of the return air is absorbed by the evaporation end 9 of the separated heat pipe, and is discharged to the outdoor environment through the air outlet of the indoor cabinet 2. The heat pipe working medium in the evaporation end 9 of the separated heat pipe is absorbed by the liquid to become gaseous and is transferred to the condensing end 8 of the separated heat pipe heat exchanger. Under the action of the EC fan 5 of the outdoor cabinet 1, the gaseous heat pipe working medium is naturally cooled and condensed into liquid heat pipe working medium by the fresh air from the outdoor air, and is then sent into the evaporation end 9 of the separated heat pipe heat exchanger through the liquid pipe of the heat exchanger again, so as to circulate.

[0032] The low-temperature fresh air of the outdoor environment is preheated by the condensing end 8 of the separated heat pipe heat exchanger, and is sent into the indoor environment through the air inlet 3 of the indoor cabinet 2. At the same time, the high-temperature steam in the condensing end is cooled and condensed into liquid. If the outdoor cabinet 1 is higher than the indoor cabinet 2 in actual installation, the working medium pump can be omitted. If the outdoor cabinet 1 is lower than the indoor cabinet 2 in actual installation, the working medium pump needs to be matched on the liquid pipe of the heat exchanger, and the working medium pump needs to be started.

[0033] Compared with the summer cooling or winter heat recovery mode of the existing factory building or high workshop, the patent can make full use of the natural cold source, selectively open different working modes according to different outdoor weather conditions, the installation position is flexible, the operation cost is extremely low, and the patent is especially suitable for the occasions that the direct ventilation mode cannot be used for cooling in the factory building or high workshop, the temperature can be reduced to the maximum extent, the initial investment is saved, and the operation cost is low, the patent can also be used for recycling the heat of the exhaust air for preheating fresh air in the winter fresh air exhaust replacement of the factory building or high workshop, and the winter fresh air can be humidified, therefore, the application area of the heat pipe technology is expanded, energy is saved and environmental protection is achieved, and the patent has strong practicability.

Claims

1. A multi-purpose air conditioning system based on heat recovery by using separate heat pipe, characterized in that: The utility model relates to a kind of multi-purpose air conditioning system, including outdoor cabinet (1) and indoor cabinet (2), the outdoor cabinet (1) and indoor cabinet (2) are equipped with air inlet (3), filter screen (4), EC fan (5), direct evaporative cooling assembly (6), air outlet (7) in, the outdoor cabinet (1) is also equipped with separate heat pipe heat exchanger condensing end (8), the indoor cabinet (2) is also equipped with separate heat pipe heat exchanger evaporation end (9), and the circulation passage is formed between separate heat pipe heat exchanger evaporation end (9) and separate heat pipe heat exchanger condensing end (8) by gas pipe and liquid pipe of working medium, the outdoor cabinet (1) is respectively provided as filter screen (4), EC fan (5), direct evaporative cooling assembly (6), separate heat pipe heat exchanger condensing end (8) along the direction of air inlet (3) to air outlet (7), the indoor cabinet (2) is respectively provided as filter screen (4), separate heat pipe heat exchanger evaporation end (9), direct evaporative cooling assembly (6), EC fan (5) along the direction of air inlet (3) to air outlet (7).

2. The multi-purpose air conditioning system based on heat recovery through a separate heat pipe according to claim 1, characterized in that: The direct evaporative cooling assembly (6) includes an evaporative cooling core (10), a spray row (11) disposed on the top of the evaporative cooling core (10), a water tray (12) disposed on the bottom of the evaporative cooling core (10), a spray pump (13) connected to one side of the water tray (12), and a water replenishment solenoid valve pipeline (14) disposed on the water tray (12). The spray pump (13) is connected to the spray row (11) through a spray pipeline (15).

3. The multi-purpose air conditioning system based on heat pipe heat exchanger according to claim 2, characterized in that: The direct evaporative cooling assembly (6) in the indoor cabinet (2) further includes a water baffle (16) disposed on one side of the evaporative cooling core (10).

4. The cooling and heat recovery multi-purpose air conditioning system based on the heat pipe heat exchanger according to claim 1, characterized in that: The multi-purpose air conditioning system can select two operation modes of summer cooling and winter heat recovery according to needs, and is divided into four operation modes according to different outdoor and indoor environment temperatures and relative humidities, i.e., dry working condition operation, outdoor wet working condition and indoor dry working condition, outdoor wet working condition and indoor wet working condition, and outdoor dry working condition and indoor wet working condition.

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