CN217817568U

CN217817568U - Evaporation type condenser

Info

Publication number: CN217817568U
Application number: CN202222065419.8U
Authority: CN
Inventors: 宋欣
Original assignee: Guangling College Of Yangzhou University
Current assignee: Guangling College Of Yangzhou University
Priority date: 2022-08-05
Filing date: 2022-08-05
Publication date: 2022-11-15
Anticipated expiration: 2032-08-05

Abstract

The utility model relates to a condenser, and discloses an evaporative condenser, which comprises a box body, wherein a gas heat exchange system, a spraying system and a spraying evaporation and condensation system are sequentially arranged in the box body from an inlet to an outlet, and a heat exchange medium conveying pipeline is arranged between the gas heat exchange system and the spraying evaporation and condensation system; the gas heat exchange system comprises a heat exchange structure, a first gas inlet and a second gas inlet which are arranged on the side wall of the box body, and gas entering from the second gas inlet can exchange heat with gas entering from the first gas inlet on the heat exchange structure; the gas entering from the first gas inlet is suitable for passing through a spraying system, a spraying evaporation and condensation system and a heat exchange medium conveying pipeline; the spraying system comprises a spraying unit, and gas entering from the first gas inlet and gas entering from the second gas inlet can exchange heat with liquid sprayed by the spraying unit. The evaporative condenser has high heat exchange efficiency.

Description

Evaporation type condenser

Technical Field

The utility model relates to a condenser specifically relates to an evaporative condenser.

Background

In the technical field of refrigeration and air conditioning, the refrigeration and air conditioning system is generally divided into a water-cooled refrigeration air conditioning unit and an air-cooled refrigeration air conditioning unit according to a cooling medium. The air-cooled refrigeration air conditioning unit takes an air-cooled condenser as cooling and condensing equipment of high-pressure superheated refrigerant gas discharged by a compressor, takes ambient atmosphere as a cooling medium, and improves the heat exchange efficiency of the air-cooled condenser through forced convection circulation of a fan, so the air-cooled refrigeration air conditioning unit is widely applied to production practice due to simple structure, convenient installation and operation and low manufacturing cost; the water-cooled refrigerating air-conditioning unit is a cooling condensing device which takes a water-cooled condenser as high-pressure superheated refrigerant gas discharged by a compressor, and takes water as a cooling medium, so that the water-cooled refrigerating air-conditioning unit can work only by additionally installing a complex cooling water system consisting of a cooling tower, a cooling water pump and a cooling water system to cool and circulate cooling water in the actual use process.

The evaporative condenser can be regarded as a combination of the condenser and a cooling tower and consists of a heat exchanger, a fan, a cooling water pump and a cooling water spraying device, and the working principle is as follows: after high-pressure superheated refrigerant gas discharged by a compressor enters an evaporative condenser, a layer of uniform water film is formed on the surface of a heat exchanger of the evaporative condenser through circulating cooling water and a spraying device, at the moment, the cooling water film can absorb heat of the refrigerant through the surface of the heat exchanger, a part of the cooling water is evaporated into water vapor after absorbing the heat of the refrigerant and then discharged to the ambient atmosphere by a fan, the refrigerant is cooled and condensed into high-pressure liquid, the ambient air which is not evaporated by the cooling water and is brought in by the fan is subjected to heat and mass exchange in a mixing mode, the temperature of the ambient air is reduced and then the ambient air is scattered in a water inlet tank of the evaporative condenser, and the cooling and condensing circulation of the refrigerant is continuously participated. The evaporative condenser utilizes the wet bulb temperature of the ambient air in the whole evaporative cooling circulation process, so that the condensing temperature of a refrigerating air conditioning unit consisting of the evaporative condenser is lower than that of a water-cooled cooling system by 5 ℃ and lower than that of an air-cooled refrigerating air conditioning unit by 15 ℃, so that the running cost of the whole refrigerating air conditioning device consisting of the evaporative condenser is lower than that of the whole refrigerating air conditioning device consisting of the water-cooled cooling system by more than 15%, and the running cost of the whole refrigerating air conditioning device consisting of the air-cooled system is lower than that of the whole refrigerating air conditioning device consisting of the air-cooled system by more than 35%, and the evaporative condenser has remarkable energy-saving effect, and the circulating amount of cooling water is only 30-50% of the water-cooled cooling system, thereby being very beneficial to mountain areas and places with tense and poor fresh water resources, or areas with higher ambient temperature, and achieving the purpose of energy saving and emission reduction to the maximum extent. However, the heat exchange efficiency of the evaporative condenser still needs to be improved.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the technical problem that the heat exchange efficiency of the evaporative condenser that prior art exists remains to improve, providing an evaporative condenser, this evaporative condenser has higher heat exchange efficiency.

In order to achieve the purpose, the utility model provides an evaporative condenser, which comprises a box body, wherein a gas heat exchange system, a spraying system and a spray evaporation and condensation system are sequentially arranged in the box body from an inlet to an outlet, a medium conveying pipeline to be heat exchanged is also arranged in the box body, and the medium conveying pipeline to be heat exchanged is arranged between the gas heat exchange system and the spray evaporation and condensation system; the gas heat exchange system comprises a heat exchange structure, a first gas inlet and a second gas inlet, wherein the first gas inlet and the second gas inlet are arranged on the side wall of the box body, the second gas inlet is arranged below the first gas inlet, and gas entering from the second gas inlet can exchange heat with gas entering from the first gas inlet on the heat exchange structure; the gas entering from the first gas inlet is suitable for passing through the spraying system, the spraying evaporation and condensation system and the heat exchange medium conveying pipeline; the spraying system comprises a spraying unit, the spraying unit is arranged above the first gas inlet, and gas entering from the first gas inlet and gas entering from the second gas inlet can exchange heat with liquid sprayed by the spraying unit.

Preferably, the number of the gas heat exchange systems is two, the first gas inlets of the two gas heat exchange systems are arranged on two sides of the box body, and the second gas inlets of the two gas heat exchange systems are arranged on two sides of the box body.

Preferably, a first filter screen is arranged at the first gas inlet, and a second filter screen is arranged at the second gas inlet.

Preferably, the spraying system further comprises a spraying and cooling unit, and the spraying and cooling unit and the spraying unit are arranged along the flowing direction of the gas entering from the first gas inlet.

Further preferably, the spraying and cooling unit comprises a PVC filler layer, and the PVC filler layer is arranged above the first gas inlet.

Preferably, the medium conveying pipeline needing heat exchange is arranged between the spraying cooling unit and the spraying evaporation and condensation system.

Further preferably, the spray evaporation and condensation system is a spray unit, and the spray unit is arranged above the pipeline for conveying the medium to be heat exchanged.

More preferably, the heat exchange medium conveying pipe is a coil pipe.

Preferably, the gas spraying device further comprises a water baffle, and the spraying evaporation and condensation system and the water baffle are arranged along the flow direction of the gas entering from the first gas inlet.

Preferably, the outer surface of the heat exchange structure is provided with a hydrophilic high polymer layer.

Through the technical scheme, the beneficial effects of the utility model are as follows:

the utility model provides an evaporative condenser is through setting up the gaseous below of import at first gas with the second to make the gas that gets into from the gaseous import of second can carry out the heat transfer to the gas that first gas import got into structurally at the heat transfer, through the dual function of the gas that sprays unit and the gaseous import of second got into, can effectively reduce initial temperature, and then can improve heat transfer effect. The gas heat exchange system, the spraying system and the spraying evaporation and condensation system which are sequentially arranged can further improve the heat exchange effect through a multiple heat exchange mode. The unit setting will spray is in the top of first gas inlet to make the gaseous and the liquid heat transfer that the unit sprayed that spray that get into from the gaseous and the second gas inlet that get into from the first gas inlet, can make the gaseous and the liquid that the unit sprayed that spray that get into from the gaseous and the gaseous of the gaseous and the second gas inlet that get into of following of the first gas inlet form and flow against the current, receive the effect of gas-liquid shear force, the shower water is blown by reverse air and is held in the palm slow flow or dispersed for the liquid drop, float in the air, thereby there is sufficient time and air exchange heat, thereby further improve the heat transfer effect.

Drawings

Fig. 1 is a schematic structural diagram of an evaporative condenser according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a heat exchange structure in an evaporative condenser according to an embodiment of the present invention.

Description of the reference numerals

1. Box body 2 gas heat exchange system

3. Spraying system 4 spraying evaporation condensing system

5. Water baffle 6 second fan

7. First fan 8 needs heat exchange medium conveying pipeline

21. Heat exchange structure 22 first gas inlet

23. Second gas inlet 24 first screen

25. Second filter screen

31. Spraying unit 32 spraying cooling unit

Detailed Description

The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings. It should be understood that the description herein is provided for illustration and explanation of the invention and is not intended to limit the invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; the connection may be direct or indirect via an intermediate medium, and may be an abutment, a communication between two elements, or an interaction between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

It is to be understood that the terms "upper", "lower", "front", "rear", "inner", "outer", and the like, are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the present invention.

In a basic embodiment of the present invention, there is provided an evaporative condenser, as shown in fig. 1, comprising a box body 1, wherein a gas heat exchange system 2, a spraying system 3 and a spray evaporative condensing system 4 are sequentially arranged in the box body 1 from an inlet to an outlet, a heat transfer medium conveying pipeline 8 is further arranged in the box body 1, and the heat transfer medium conveying pipeline 8 is arranged between the gas heat exchange system 2 and the spray evaporative condensing system 4; the gas heat exchange system 2 comprises a heat exchange structure 21, and a first gas inlet 22 and a second gas inlet 23 which are arranged on the side wall of the box body 1, wherein the second gas inlet 23 is arranged below the first gas inlet 22, and gas entering from the second gas inlet 23 can exchange heat with gas entering from the first gas inlet 22 on the heat exchange structure 21; the gas entering from the first gas inlet 22 is suitable for passing through the spraying system 3, the spraying evaporation and condensation system 4 and the heat exchange medium conveying pipeline 8; the spraying system 3 comprises a spraying unit 31, the spraying unit 31 is arranged above the first gas inlet 22, and both the gas entering from the first gas inlet 22 and the gas entering from the second gas inlet 23 can exchange heat with the liquid sprayed by the spraying unit 31.

According to the utility model discloses, box 1 is inside to be divided into first gas flow channel and second gas flow channel, and the gas that gets into from first gas feed 22 is suitable for and gets into first gas flow channel, and the gas that gets into from second gas feed 23 is suitable for and gets into second gas flow channel, and spraying system 3 and spraying evaporation condensing system 4 set up in first gas flow channel, and spraying system 3's the part of spraying unit 31 extends to in the second gas flow channel. The heat exchange structure 21 may be any structure capable of exchanging heat between the gas entering from the first gas inlet 22, the gas entering from the second gas inlet 23, and the liquid sprayed by the spraying unit 31, and may be a heat exchange core or a heat exchange pipe. In order to further improve the heat exchange efficiency, preferably, the heat exchange structure 21 is a heat exchange core, referring to fig. 2, the outer surface of the heat exchange core is corrugated, so that the heat exchange area inside the heat exchange core and the heat exchange area outside the heat exchange core can be increased, and the heat exchange effect is further improved. The heat exchange core body is connected with the first gas inlet 22, gas entering from the second gas inlet 23 can blow over the surface of the heat exchange core body, water sprayed by the spraying unit 31 can form a water film on the surface of the heat exchange structure 21, the gas entering from the second gas inlet 23 blows over the water film on the outer wall surface of the heat exchange structure 21 slightly, the heat and mass transfer effect is achieved, and the temperature of the gas entering the heat exchange structure 21 from the first gas inlet is reduced.

The inlet and outlet of the evaporative condenser housing 1 may be arranged according to the conventional arrangement of evaporative condensers, preferably with the inlet arranged above the outlet. More preferably, the outlet is provided on the upper surface of the case 1, and the inlet is provided on the sidewall of the case 1. The inlets can be provided with one group or a plurality of groups, which are determined according to the number of the gas heat exchange systems 2, and each group of inlets is provided with two inlets, one of which is used as a first gas inlet 22 and the other is used as a second gas inlet 23. Two sets of outlets are correspondingly arranged, namely a first gas outlet and a second gas outlet, wherein the first gas outlet is used for discharging the gas entering from the first gas inlet 22, and the second gas outlet is used for discharging the gas entering from the second gas inlet 23. The gas entering from the first gas inlet 22 can be discharged from the first gas outlet and the gas entering from the second gas inlet 23 can be discharged from the second gas outlet by any feasible means, for example, a power device is respectively arranged at the first gas inlet 22 and the second gas inlet 23 to provide power for the flowing gas, and the power device can be a blower, a high pressure fan or other devices capable of driving the gas to flow. In order to be able to increase the flow rate of the gas, the first gas outlet is provided with a first fan 7 and the second gas outlet is provided with a second fan 6. The interior of the box body 1 is divided into a first gas flowing channel and a second gas flowing channel, a first gas inlet 22 is connected with the first gas flowing channel, a second gas inlet 23 is connected with the second gas flowing channel, a first gas outlet is arranged at the tail end of the first gas flowing channel, and a second gas outlet is arranged at the tail end of the second gas flowing channel.

The spraying unit 31 may be any structure that can realize a spraying effect in the prior art, and specifically may be a spraying pipe and a plurality of spraying heads disposed on the spraying pipe, and the high-pressure flowing liquid enters the spraying pipe and is then discharged from the spraying heads in the spraying pipe.

The spray evaporative condensing system is any structure capable of cooling by spraying, and illustratively, a heat transfer medium conveying pipeline 8 is arranged between the gas heat exchange system 2 and the spray evaporative condensing system 4, and the temperature of the gas entering from the first gas inlet 22, the spraying system 3 and the spray evaporative condensing system 4 is reduced.

The utility model discloses above-mentioned evaporative condenser during operation that basic embodiment provided, the gas I that gets into from first gas feed 22 and the gas II that gets into from second gas feed 23 carry out the heat transfer in heat transfer structure 21 department, and the water droplet that sprays unit 31 this moment and drop on heat transfer structure 21 forms the water film, and gas II blows the water film on slightly heat transfer structure 21 outer wall, then discharges from the export of box 1. Gas I coming out of the heat exchange structure 21 is cooled down by the spraying system 3 after heat exchange and the spraying evaporation and condensation system 4 for the heat-exchange medium conveying pipeline 8, or the gas I coming out of the heat exchange structure 21, the spraying system 3 and the spraying evaporation and condensation system 4 are cooled down by the heat-exchange medium conveying pipeline 8, and the gas I is discharged from an outlet of the box body 1.

The utility model discloses the evaporative condenser that above-mentioned basic embodiment provided, through setting up second gas inlet 23 in first gas inlet 22's below to make the gas that gets into from second gas inlet 23 can carry out the heat transfer to the gas that first gas inlet 22 got into on heat transfer structure 21, through the dual function of the gas II who sprays unit 31 and the gaseous 23 entering of second, can effectively reduce gaseous I temperature, and then can improve its and the heat transfer effect that needs heat transfer medium pipeline 8. The gas heat exchange system 2, the spraying system 3 and the spraying evaporation and condensation system 4 which are sequentially arranged can further reduce the initial temperature of the gas I in a multiple heat exchange mode, so that the heat exchange effect of the gas I and the heat exchange medium conveying pipeline 8 which needs to be exchanged is further improved. The spraying unit 31 is arranged above the first gas inlet 22, gas entering from the first gas inlet 22 and gas entering from the second gas inlet 23 exchange heat with liquid sprayed by the spraying unit 31, gas entering from the first gas inlet 22 and gas entering from the second gas inlet 23 form countercurrent with the liquid sprayed by the spraying unit 31, and sprayed water is blown by reverse air to flow slowly or dispersed into liquid drops under the action of gas-liquid shearing force and floats in the air, so that enough time is provided for exchanging heat with the air, the temperature of the air is further reduced, and the heat exchange effect of the air and the heat-exchange-required medium conveying pipeline 8 is further improved. Moreover, the spraying system 3 and the spraying evaporation and condensation system 4 can also exchange heat for the medium conveying pipeline 8 needing heat exchange, so that the heat exchange effect is further improved.

The gas heat exchange systems 2 can be provided with one or more, preferably, the gas heat exchange systems 2 are arranged in pairs, and the two gas heat exchange systems 2 in one pair are arranged on two opposite sides of the side wall of the box body 1, so that the flowing direction of the gas can be changed through the mutual impact between the gases discharged by the two gas heat exchange systems 2 which are arranged oppositely, and the energy of the gas can be fully utilized. The utility model discloses an in the embodiment, gas heat transfer system 2 is provided with two, and two gas heat transfer system 2's first gas feed 22 sets up in the both sides of box 1, and two gas heat transfer system 2's the gaseous 23 of second sets up in the both sides of box 1. Through the arrangement, the flowing direction of the gas can be changed through the mutual impact of the gas entering from the two first gas inlets 22, the energy of the gas is fully utilized, the cost is reduced, and the structure is simplified.

Specifically, as shown in fig. 1, when two gas heat exchange systems 2 are provided, the inside of the box 1 is divided into a first gas flow channel and a second gas flow channel, and one first gas flow channel is provided and connected to two first gas inlets 22; two second gas flow passages are provided, one of which is connected to one of the second gas inlets 23, and the other of which is connected to the other second gas inlet 23; the first gas flow channel is disposed between the two second gas flow channels. The spraying system 3, the spraying evaporation and condensation system 4 and the heat-exchange medium conveying pipeline 8 are arranged in the first gas flow channel, and part of the spraying unit 31 of the spraying system 3 extends into the second gas flow channel.

In one embodiment of the present invention, a first filter 24 is disposed at the first gas inlet 22, and a second filter 25 is disposed at the second gas inlet 23. The setting of first filter screen 24 and second filter screen 25 can filter the gas that gets into first gas inlet 22 and second gas inlet 23, filters the silt in the gas, reduces the pile up of dirt in spraying system 3 and the spraying evaporation condensing system 4.

In a specific embodiment of the present invention, the spraying system 3 further includes a spraying cooling unit 32, and the spraying cooling unit 32 and the spraying unit 31 are disposed along the flowing direction of the gas entering from the first gas inlet 22. The spray cooling unit 32 may be any structure that can be combined with the spray unit 31 to achieve cooling. Preferably, the spray cooling unit 32 comprises a PVC packing layer disposed above the first gas inlet 22. The water drops that spray unit 31 sprays can form the water film on the PVC filler surface, can increase and from the area of contact of the gaseous of first gas inlet 22 entering, reduce gas temperature, also can promote the water film evaporation simultaneously, reduce water film temperature, improve heat transfer effect.

Specifically, the sprinkling unit 31 is disposed above the sprinkling cooling unit 32.

The utility model discloses an among the embodiment, need heat transfer medium pipeline 8 to set up and spraying between cooling unit 32 and spraying evaporation condensing system 4, at this moment, the setting that sprays cooling unit 32 and spray unit 31 can further cool down from the gas that first gas feed 22 got into, and gas after the cooling, spray unit 31 and spraying evaporation condensing system 4 can be cooled down to needing heat transfer medium pipeline 8 moreover, and then improve the heat transfer effect.

In a specific embodiment of the present invention, the spray evaporation and condensation system 4 is a spray unit, which is disposed above the heat transfer medium conveying pipeline 8, wherein the spray unit is connected to the high pressure water pump. Micron-sized water mist sprayed out by the spraying unit is distributed on the pipeline 8 for the medium to be heat-exchanged, so that the heat exchange area is increased, the heat and mass transfer of air and a water film is enhanced, and the cooling effect on the pipeline 8 for the medium to be heat-exchanged is improved. The spraying unit is arranged above the heat exchange medium conveying pipeline 8, so that water sprayed out of the spraying unit and gas form convection, the contact time is prolonged, and the heat exchange effect can be further improved.

The utility model discloses an among the embodiment, need heat transfer medium pipeline 8 to be the coil pipe, the setting of coil pipe can enough increase the inside and outside heat transfer area of coil pipe, further reduces the temperature of medium, and the water that sprays 31 in addition can be at the outside water film that forms of need heat transfer medium pipeline 8, can further improve heat transfer effect through the evaporation of water film.

In one embodiment of the present invention, the water baffle 5 is further included, and the spray evaporative condensing system 4 and the water baffle 5 are disposed along the flow direction of the gas entering from the first gas inlet 22. Can filter gaseous vapor, water economy resource and protection top fan. The splash guard 5 may be any one of those disclosed in the prior art. Specifically, the water baffle 5 is disposed above the spray evaporative condensing system 4.

In one embodiment of the present invention, the outer surface of the heat exchange structure 21 is provided with a hydrophilic polymer layer. Specifically, the hydrophilic polymer layer may be any one of hydrophilic polymer layers, for example, a coating layer formed of a polymer containing a plurality of hydroxyl groups, a plurality of carboxyl groups, or a plurality of amine groups. The hydrophilicity of the external heat exchange wall surface of the heat exchange structure 21 can be increased, so that the heat exchange wall surface is more easily paved with continuous water films, and the evaporation and heat absorption of the water films are enhanced.

As a relatively preferred embodiment of the present invention, as shown in fig. 1 and 2, an evaporative condenser is provided, which comprises a box body 1, wherein a gas heat exchange system 2, a spraying system 3, a spraying evaporation condensing system 4 and a water baffle 5 are sequentially arranged inside the box body 1 from an inlet to an outlet; the gas heat exchange system 2 comprises a heat exchange structure 21, a first gas inlet 22 and a second gas inlet 23, wherein the first gas inlet 22 and the second gas inlet 23 are arranged on the side wall of the box body 1, the second gas inlet 23 is arranged below the first gas inlet 22, gas entering from the second gas inlet 23 can exchange heat with the gas entering from the first gas inlet 22 on the heat exchange structure 21, and a hydrophilic high polymer layer is arranged on the outer surface of the heat exchange structure 21; the number of the gas heat exchange systems 2 is two, the first gas inlets 22 of the two gas heat exchange systems 2 are arranged on two sides of the box body 1, and the second gas inlets 23 of the two gas heat exchange systems 2 are arranged on two sides of the box body 1; the interior of the box body 1 is divided into a first gas flow channel and a second gas flow channel, the first gas flow channel is provided with one and is connected with two first gas inlets 22, the second gas flow channel is provided with two, one second gas flow channel is connected with one second gas inlet 23, the other second gas flow channel is connected with the other second gas inlet 23, the first gas flow channel is arranged between the two second gas flow channels, the tail end of the first gas flow channel and the tail end of the second gas flow channel correspond to the outlet of the box body 1, the tail end of the first gas flow channel is provided with a first fan 7, and the tail end of the second gas flow channel is provided with a second fan 6; the first gas inlet 22 is provided with a first filter screen 24, and the second gas inlet 23 is provided with a second filter screen 25; the spraying system 3 comprises a spraying unit 31 and a spraying cooling unit 32, the spraying unit 31 is arranged above the spraying cooling unit 32, the spraying cooling unit 32 comprises a PVC packing layer, the PVC packing layer is arranged above the first gas inlet 22, the spraying evaporation and condensation system 4 is a spraying unit, a heat-exchange medium conveying pipeline 8 is further arranged in the box body 1, the heat-exchange medium conveying pipeline 8 is arranged between the spraying cooling unit 32 and the spraying evaporation and condensation system 4, the spraying unit is arranged above the heat-exchange medium conveying pipeline 8, and the heat-exchange medium conveying pipeline 8 is a coil pipe; the spraying system 3, the spraying evaporation and condensation system 4 and the heat-exchange medium conveying pipeline 8 are arranged in the first gas circulation channel, and the part of the spraying unit 31 in the spraying system 3 extends into the second gas circulation channel.

Specifically, a part of the heat exchange medium delivery pipe 8 is located above the spraying unit 31, and a part of the heat exchange medium delivery pipe is located below the spraying unit.

The utility model discloses above-mentioned preferred embodiment provides an evaporative condenser during operation, the gas I that gets into from first gas feed 22 and the gas II that gets into from second gas feed 23 carry out the heat transfer in heat transfer structure 21 department, and at this moment, the water droplet that sprays unit 31 and spray falls on heat transfer structure 21's surface formation water film, and gas II blows the water film on the slightly heat transfer structure 21 outer wall, then discharges from the export of box 1. Gaseous I that comes out from heat transfer structure 21 is in the PVC packing layer and the water heat transfer cooling that spray unit 31 drenched down, then to needing 8 cooling of heat transfer medium pipeline, spray unit 31 water and the water smoke that spray unit sprayed down simultaneously and also to needing 8 cooling of heat transfer medium pipeline, can form the water film on 8 surfaces of heat transfer medium pipeline that need simultaneously, and gaseous I can intake the membrane evaporation, takes away intraductal heat.

The utility model discloses the evaporative condenser that above-mentioned preferred embodiment provided, through setting up second gas inlet 23 in the below of first gas inlet 22 to make the gas that gets into from second gas inlet 23 can carry out the heat transfer to the gas that first gas inlet 22 got into on heat transfer structure 21, through the dual function of the gas II that sprays unit 31 and second gas inlet 23 and get into, can effectively reduce gaseous I's temperature, and then can improve its and the heat transfer effect that needs heat transfer medium pipeline 8 in later stage. And PVC packing layer and spraying unit 31 set up and can improve the heat transfer effect of spraying unit 31 drenched down water and gaseous I, further reduce gaseous I's temperature, and then can improve its and need heat transfer medium pipeline 8's of later stage heat transfer effect. The setting of spraying unit 31 and spraying unit can enough directly reduce and need 8 temperatures of heat transfer medium pipeline through the heat transfer between water and the heat transfer medium pipeline 8 that need, can form the water film again on needing 8 surfaces of heat transfer medium pipeline, blows through gaseous I and slightly drives the evaporation of water film and further reduces and need 8 temperatures of heat transfer medium pipeline, increases substantially the heat transfer effect. Be provided with hydrophilicity high molecular polymer layer at heat transfer structure 21's surface, can improve the coverage rate of heat transfer structure 21 surface water film, effectively reduce gaseous II's temperature, and then reduce gaseous I's temperature, improve gaseous I in later stage and need heat transfer medium pipeline 8's heat transfer effect.

The above description is provided for the preferred embodiments of the present invention, but the present invention is not limited to the details of the above embodiments, and the technical idea of the present invention can be implemented by various simple modifications, which all belong to the protection scope of the present invention.

It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and in order to avoid unnecessary repetition, the present invention does not need to describe any combination of the features.

In addition, various embodiments of the present invention can be combined arbitrarily, and the disclosed content should be regarded as the present invention as long as it does not violate the idea of the present invention.

Claims

1. An evaporative condenser is characterized by comprising a box body (1), wherein a gas heat exchange system (2), a spraying system (3) and a spraying evaporation and condensation system (4) are sequentially arranged in the box body (1) from an inlet to an outlet, a medium conveying pipeline (8) needing heat exchange is further arranged in the box body (1), and the medium conveying pipeline (8) needing heat exchange is arranged between the gas heat exchange system (2) and the spraying evaporation and condensation system (4);

the gas heat exchange system (2) comprises a heat exchange structure (21) and a first gas inlet (22) and a second gas inlet (23) which are arranged on the side wall of the box body (1), wherein the second gas inlet (23) is arranged below the first gas inlet (22), and gas entering from the second gas inlet (23) can exchange heat on the heat exchange structure (21) for gas entering from the first gas inlet (22);

the gas entering from the first gas inlet (22) is suitable for passing through the spraying system (3), the spraying evaporation and condensation system (4) and the heat-exchange medium conveying pipeline (8);

the spraying system (3) comprises a spraying unit (31), the spraying unit (31) is arranged above the first gas inlet (22), and gas entering from the first gas inlet (22) and gas entering from the second gas inlet (23) can exchange heat with liquid sprayed by the spraying unit (31).

2. The evaporative condenser according to claim 1, wherein the gas heat exchange system (2) is provided with two, and the first gas inlets (22) of the two gas heat exchange systems (2) are provided at both sides of the tank (1), and the second gas inlets (23) of the two gas heat exchange systems (2) are provided at both sides of the tank (1).

3. Evaporative condenser according to claim 1 or 2, characterized in that a first filter screen (24) is provided at the first gas inlet (22) and a second filter screen (25) is provided at the second gas inlet (23).

4. The evaporative condenser according to claim 1 or 2, wherein the spray system (3) further comprises a spray cooling unit (32), the spray cooling unit (32) and the spray unit (31) being arranged in a flow direction of the gas entering from the first gas inlet (22).

5. Evaporative condenser, according to claim 4, characterized in that the spray cooling unit (32) comprises a PVC filler layer, which is arranged above the first gas inlet (22).

6. The evaporative condenser according to claim 4, wherein the heat transfer medium supply pipe (8) is arranged between the spray desuperheating unit (32) and the spray evaporative condensing system (4).

7. The evaporative condenser, as set forth in claim 6, characterized in that the spray evaporative condensing system (4) is a spray unit, which is disposed above the heat exchange medium transporting pipe (8).

8. Evaporative condenser according to claim 1 or 2, characterized in that the heat transfer medium supply lines (8) are coils.

9. The evaporative condenser according to claim 1 or 2, further comprising a water baffle (5), the spray evaporative condensing system (4) and the water baffle (5) being arranged in the flow direction of the gas entering from the first gas inlet (22).

10. Evaporative condenser, according to claim 1 or 2, characterized in that the outer surface of the heat exchanging structure (21) is provided with a layer of hydrophilic high molecular polymer.