CN211650835U

CN211650835U - Composite evaporative condenser

Info

Publication number: CN211650835U
Application number: CN202020442259.2U
Authority: CN
Inventors: 于乐功; 肖广玉; 李广鹏; 王新磊; 付建广
Original assignee: Shandong 72 Degree Refrigeration Equipment Co ltd
Current assignee: Shandong 72 Degree Refrigeration Equipment Co ltd
Priority date: 2020-03-31
Filing date: 2020-03-31
Publication date: 2020-10-09
Anticipated expiration: 2030-03-31

Abstract

The utility model discloses a composite evaporative condenser, the interior of the condenser shell is divided into an upper cavity and a lower cavity by a transverse clapboard and a water-through plate with a filter screen, the upper cavity is divided into a left cavity and a right cavity by a longitudinal fixed clapboard, a strong-wind pre-cooling condenser is arranged in the left cavity, a water-cooled condenser is arranged in the lower cavity, and the evaporative condenser is arranged in the right cavity; the strong wind pre-cooling type condenser, the water-cooled type condenser and the evaporative type condenser are communicated through a refrigerant communication pipeline, refrigerant steam enters from a refrigerant steam inlet communicated with an inlet of the strong wind pre-cooling type condenser, sequentially flows through the strong wind pre-cooling type condenser, the water-cooled type condenser and the evaporative type condenser and finally flows out from a refrigerant liquid outlet connected with the evaporative type condenser.

Description

Composite evaporative condenser

Technical Field

The utility model relates to a freezing refrigeration plant technical field specifically is a compound evaporative condenser.

Background

The evaporative condenser is one kind of condenser, and is used to cool high temperature and high pressure vapor exhausted from the compressor by taking away heat with latent heat of vaporization of water to condense refrigerant vapor in the pipe to provide relatively low condensing temperature. Compared with a water-cooled type and air-cooled type condenser, the evaporative type condenser has better heat transfer effect and higher economical efficiency, and is widely applied to the refrigeration industry.

The condenser uses cooling medium water and air to cool and condense the refrigerant, and mainly comprises a water cooling type, an air cooling type and an evaporation cooling type. The air-cooled condenser directly exchanges sensible heat between air and a refrigerant, so that the system has high operation pressure and poor effect in high-temperature weather conditions; the water-cooled condenser exchanges heat with the refrigerant by using cooling water, so that the attenuation is fast, the efficiency is not high, and the water resource waste is serious; the evaporative condenser exchanges heat with a refrigerant by air and water simultaneously, has good heat exchange effect compared with an air-cooled type heat exchange system and a water-cooled type heat exchange system, but also has the problems of poor heat exchange effect in high-temperature weather, water resource waste and reduced heat exchange efficiency after long-time operation.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a compound evaporative condenser.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a composite evaporative condenser, which comprises a condenser shell, wherein the interior of the condenser shell is divided into an upper cavity and a lower cavity by a transverse clapboard and a water-passing plate with a filter screen, the upper cavity is divided into a left cavity and a right cavity by a longitudinal fixed clapboard, a strong wind pre-cooling condenser is arranged in the left cavity, a water-cooled condenser is arranged in the lower cavity, and an evaporative condenser is arranged in the right cavity; the strong wind pre-cooling type condenser, the water-cooled type condenser and the evaporative type condenser are communicated through a refrigerant communication pipeline, refrigerant steam enters from a refrigerant steam inlet communicated with an inlet of the strong wind pre-cooling type condenser, sequentially flows through the strong wind pre-cooling type condenser, the water-cooled type condenser and the evaporative type condenser and finally flows out from a refrigerant liquid outlet connected with the evaporative type condenser.

As a further technical scheme, the lower cavity is a water storage tank, the water-cooled condenser is immersed in the water storage tank, and the bottom of the water storage tank is provided with a booster water pump.

As a further technical scheme, the water storage tank is provided with an automatic water replenishing device.

As a further technical scheme, an air outlet is formed in the top wall of the shell, and a fan is arranged at the position of the air outlet.

As a further technical scheme, the evaporative condenser is provided with a heat exchanger, and a spraying device is arranged above the heat exchanger; the spraying device is communicated with the water storage tank through a booster water pump.

Furthermore, a plurality of heat exchange devices and a plurality of spraying devices of the evaporative condenser are arranged, adjacent heat exchange devices are communicated with each other through pipelines, and valves are arranged in front of the spraying devices to adjust water flow. A water passing plate with a filter screen is arranged below the water inlet pipe.

Furthermore, the strong wind pre-cooling type condenser is a finned tube type heat exchanger and consists of a coiled tube, fins are sleeved outside the tube, and air transversely flows through the finned tube under the action of an axial flow fan.

The utility model has the advantages that:

according to the scheme, the strong wind pre-cooling type condenser, the water cooling type condenser and the evaporative type condenser are combined together, the advantages of condensers in different forms are fully utilized, the strong wind pre-cooling type condenser is firstly used for realizing sensible heat exchange between air and a refrigerant, and the temperature of refrigerant steam is reduced; then the heat exchange between water and the refrigerant is realized by using a water-cooled condenser, and the temperature of the refrigerant is further reduced; and finally, the evaporative condenser is used for realizing the simultaneous heat exchange of air, water and refrigerant, so that the operation efficiency is improved, and the long-term normal operation of the condenser is ensured.

Drawings

The accompanying drawings, which form a part of the specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without unduly limiting the scope of the invention.

Fig. 1 is a schematic diagram of the overall structure of the present invention according to one or more embodiments.

In the figure: the spacing or dimensions between each other are exaggerated to show the location of the various parts, and the illustration is for illustrative purposes only. In the figure: 1. the system comprises a strong wind pre-cooling type condenser, 2, a refrigerant steam inlet, 3, a finned tube type heat exchanger, 4, a valve, 5, a refrigerant communication pipeline, 6, an automatic water replenishing device with high and low water level detection, 7, a water cooling type condenser, 8, a booster water pump, 9, a water storage tank, 10, a water passing plate with a filter screen, 11, a transverse fixed partition plate, 12, a heat exchanger device, 13, a spraying device, 14, a water pipe, 15, a refrigerant liquid outlet, 16, an evaporative type condenser, 17, a variable frequency fan, 18, an air outlet and 19, wherein the axial flow fan is arranged on the front end of the condenser.

Detailed Description

It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the invention. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the invention. As used herein, the singular forms "a", "an", and/or "the" are intended to include the plural forms as well, unless the invention expressly state otherwise, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof;

as the background art introduces, the prior art has deficiencies, and in order to solve the above technical problems, the utility model provides a composite evaporative condenser.

As shown in fig. 1, the composite evaporative condenser disclosed in this embodiment includes a condenser casing, an air outlet 17 is provided on a top wall of the casing, and a fan is provided at a position of the air outlet 17; the interior of the shell is divided into three cavities by a longitudinal fixed clapboard 19, a transverse fixed clapboard 11 and a water passing plate 10 with a filter screen, and the three cavities are respectively provided with a strong wind pre-cooling condenser 1, a water-cooled condenser 7 and an evaporative condenser 16; the strong wind pre-cooling condenser 3, the water-cooled condenser 7 and the evaporative condenser 16 are communicated through a refrigerant communication pipeline 5, refrigerant steam enters from a refrigerant steam inlet 2 communicated with an inlet of the strong wind pre-cooling condenser 1, sequentially flows through the strong wind pre-cooling condenser 3, the water-cooled condenser 7 and the evaporative condenser 16, and finally flows through the evaporative condenser 16

Furthermore, in this embodiment, the transverse fixed partition 11 and the water passing plate 10 with the filter screen are located on the same plane, and the whole housing is divided into an upper area and a lower area; the longitudinal fixed clapboard 19 is vertical to the transverse fixed clapboard 11 and the water passing plate 10 with the filter screen; the upper part area of the shell is divided into a left area and a right area, the strong wind pre-cooling type condenser 1 is positioned in the left area in figure 1, and the evaporative type condenser 16 is positioned in the left area in figure 1; a water cooled condenser 7 is located in the lower region of the housing.

Further, in this embodiment, the variable frequency axial flow fan is adopted by the fan, but it is understood that in other embodiments, other fans may also be adopted, for example: the specific type can be selected according to actual needs.

Furthermore, in this embodiment, the strong wind pre-cooling type condenser 1 may be a common finned tube type heat exchanger 3, which is composed of a serpentine tube, fins are sleeved outside the tube, and air enters through the air inlet one 4 and then flows across the finned tube under the action of the variable frequency axial flow fan 17, and is finally discharged through the air outlet 18. The air flow is controlled by electrically adjusting the opening of the butterfly valve 5.

Further, in this embodiment, the water-cooled condenser 7 is a light pipe type serpentine coil, and is disposed at the bottom of the water storage tank 9. The automatic water replenishing device 6 with the high-low water level detection function can maintain the lowest water level of the water storage tank 9, can ensure that the water-cooled condenser can be always immersed in water, and can adopt the existing automatic water replenishing device for the automatic water replenishing device 6, so that the repeated description is omitted.

Further, in the embodiment, the evaporative condenser includes a plurality of sets of heat exchanging devices 12 and a plurality of spraying devices 13, adjacent heat exchanging devices are communicated with each other through water pipes 14, and a valve 4 is arranged in front of each spraying device 13 to adjust water flow of the spraying device.

Further, in this embodiment, a temperature sensor 22 is installed on a refrigerant pipeline connecting the strong air pre-cooling type condenser 3 and the water-cooled type condenser 7, and is used for detecting the temperature of the refrigerant and further adjusting the size of the inlet air at the position of the air inlet.

Further, in the present embodiment, a booster pump 8 is installed at the bottom of the water storage tank 9 for supplying water and water pressure to the shower device 13 through a water pipe 14. The water sprayed from the spraying device 13 is heat exchanged with the heat exchanger 12 of the evaporative condenser 16, and then falls to the water passing plate 10 with the filter screen, and then enters the water storage tank 9.

Further, in this embodiment, the automatic water replenishing device 6 with high/low water level detection is installed on one side of the water storage tank, and can automatically replenish water according to the set high/low water levels of the water storage tank.

The working process of the utility model is as follows:

refrigerant steam enters from a refrigerant steam inlet 2 and flows through the strong wind pre-cooling type condenser 1, the water-cooled type condenser 7 and the finned tube type heat exchanger 3 in sequence. In the strong wind pre-cooling condenser 1, the air entering from the lower air inlet flows from bottom to top under the action of the variable frequency axial flow fan 17 to flush the strong wind pre-cooling condenser 1, and completes sensible heat exchange with refrigerant steam in the pipe, thereby reducing the temperature of the refrigerant. In the water-cooled condenser 7, water in the water storage tank 9 exchanges heat with the refrigerant, and the temperature of the refrigerant is further lowered. In the finned tube heat exchanger 3, water jetted from the upper spraying device 13 and air entering from the lower air inlet under the action of the variable-frequency axial flow fan 17 exchange heat with a refrigerant in a tube simultaneously to finish the condensation process of the refrigerant.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A compound evaporative condenser, includes the condenser casing, its characterized in that: the interior of the condenser shell is divided into an upper cavity and a lower cavity by a transverse partition plate and a water passing plate with a filter screen, the upper cavity is divided into a left cavity and a right cavity by a longitudinal fixed partition plate, a strong wind pre-cooling type condenser is placed in the left cavity, a water-cooled type condenser is placed in the lower cavity, and an evaporative type condenser is placed in the right cavity; the strong wind pre-cooling type condenser, the water-cooled type condenser and the evaporative type condenser are communicated through a refrigerant communication pipeline, refrigerant steam enters from a refrigerant steam inlet communicated with an inlet of the strong wind pre-cooling type condenser, sequentially flows through the strong wind pre-cooling type condenser, the water-cooled type condenser and the evaporative type condenser and finally flows out from a refrigerant liquid outlet connected with the evaporative type condenser.

2. A composite evaporative condenser as set forth in claim 1, wherein: the lower cavity is a water storage tank, and the water-cooled condenser is immersed in the water storage tank.

3. A composite evaporative condenser as set forth in claim 2, wherein: the bottom of the water storage tank is provided with a booster water pump.

4. A composite evaporative condenser as set forth in claim 2, wherein: the water storage tank is provided with an automatic water replenishing device.

5. A composite evaporative condenser as set forth in claim 2, wherein: a heat exchanger is arranged in the evaporative condenser, a spraying device is arranged above the heat exchanger, and the spraying device is communicated with the water storage tank through a booster water pump.

6. A composite evaporative condenser as set forth in claim 5, wherein: a plurality of heat exchanger pieces of the evaporative condenser are arranged, and adjacent heat exchanger pieces are communicated with each other through a pipeline.

7. A composite evaporative condenser as set forth in claim 5, wherein: the spraying device is provided with a plurality of spraying devices, and each spraying device is provided with a valve for adjusting the water flow.

8. A composite evaporative condenser as set forth in claim 5, wherein: the water passing plate with the filter screen is positioned below the spraying device.

9. A composite evaporative condenser as set forth in claim 1, wherein: the strong wind pre-cooling type condenser is a finned tube type heat exchanger and consists of a coiled tube, fins are sleeved outside the tube, and air transversely flows through finned tubes under the action of an axial flow fan.

10. A composite evaporative condenser as set forth in claim 1, wherein: the condenser shell top be equipped with an air exit, air exit position be equipped with a fan.