Front precooling mechanism of plate heat exchange evaporator

Abstract

The utility model discloses a plate heat exchange evaporator front precooling mechanism which comprises a precooling system shell, a precooling system heat exchange aluminum pipe is arranged in the precooling system shell in a sleeved mode, the two ends of the precooling system shell are both covered with end sockets, the interior of the end socket on one side is fixedly connected with a hot air inlet, and the interior of the end socket on the other side is fixedly connected with a hot air outlet. And a precooling system outlet is fixedly connected to the interior of the end socket on the other side, a dry gas outlet is fixedly connected to one side of the bottom end of the precooling system shell, and a condensate water outlet is fixedly connected to the other side of the bottom end of the precooling system shell. Cold air obtained after heat exchange is used for precooling, the temperature returning effect on air is achieved, the frosting phenomenon is avoided, meanwhile, hot air is cooled through the physical cold and hot temperature difference, the working load of a compressor is reduced, the service life of the compressor is prolonged, the energy-saving effect is achieved, and through the combination of shell-and-tube type precooling and plate heat exchange, the energy-saving effect is achieved. The overall dimension of the refrigeration dryer is greatly reduced, and the built-in refrigeration dryer and the site layout are more flexible.

Description

TECHNICAL FIELD

[0001] The utility model relates to plate heat exchanger evaporator technical field, concretely is plate heat exchanger evaporator front precooling mechanism. BACKGROUND

[0002] Plate heat exchanger evaporator refers to the evaporator that uses metal plate to replace round pipe as heat transfer element.

[0003] The existing evaporator has copper tube aluminum fin type evaporator and shell and tube type evaporator two. The aluminum fin outside copper tube can effectively increase the heat exchange area of compressed air side, improve the heat exchange efficiency, make compressed air rapid cooling condensation moisture, reach the effect of removing water, and the shell and tube type evaporator adopts large diameter copper tube to increase the heat exchange area, rapid cooling condensation moisture, relatively simple structure, but the cold dryer is relatively strict to gas inlet temperature and pressure requirement, dew point is not enough and easy to frost, energy consumption increases due to working condition change, can not complete better heat exchange, and use exists inconvenience. UTILITY MODEL CONTENT

[0004] The utility model discloses a plate heat exchanger evaporator front precooling mechanism, plate heat exchanger adopts stainless steel material, improves the strength, and the use range is wider, precooling system is in the front of plate heat exchanger, reduces the temperature of entering plate heat exchanger, better heat exchange, amplifies the requirement to inlet temperature, and the scope of application is wider.

[0005] In order to realize the above-mentioned purpose, provide plate heat exchanger evaporator front precooling mechanism, include: precooling system casing, the inside of precooling system casing is equipped with precooling system heat exchange aluminum pipe, the both ends of precooling system casing are covered with end socket, and the inside of one side end socket is fixedly connected with hot gas inlet, and the inside of the other side end socket is fixedly connected with precooling system outlet, and the bottom end one side of precooling system casing is fixedly connected with dry gas outlet, and the bottom end other side of precooling system casing is fixedly connected with condensate outlet, and one end of condensate outlet is fixedly connected with plate heat exchanger, and the top of plate heat exchanger is fixedly connected with precooling system outlet, and the end flange of condensate outlet is connected with automatic electronic drain valve.

[0006] According to the plate heat exchanger evaporator front precooling mechanism, one end of the dry gas outlet is fixedly connected with the fixed support, and the side upper portion of the fixed support is fixedly connected with the hot gas inlet.

[0007] According to the plate heat exchanger evaporator front precooling mechanism, the dry gas outlet is arranged in an arc shape.

[0008] According to the plate heat exchanger evaporator front precooling mechanism, the plate heat exchanger is made of stainless steel.

[0009] Compared with the prior art, the utility model has the advantages that:

[0010] 1. The plate heat exchanger evaporator front pre-cooling mechanism, through the use of heat exchange complete cold air pre-cooling, namely to the gas play back temperature effect, avoid frost phenomenon, at the same time, the physical cold and hot temperature difference is utilized to cool the hot gas, the working load of the compressor is reduced, the service life of the compressor is prolonged, and the energy saving effect is also achieved, the shell and plate pre-cooling and plate heat exchanger are combined, the size of the cold dryer is greatly reduced, and the built-in cold dryer and site layout are more flexible.

[0011] 2. The plate heat exchanger evaporator front pre-cooling mechanism, by being provided with: a pre-cooling system heat exchange aluminum pipe, a plate heat exchanger and a condensate water outlet, the plate heat exchanger is made of stainless steel material, the strength is improved, and the use range is wider; the pre-cooling system is in front of the plate heat exchanger, the temperature entering the plate heat exchanger is reduced, heat exchange is better, the requirement for the inlet temperature is enlarged, the application range is wider; at the same time, the load of the compressor is reduced, and the service life is prolonged.

[0012] 3. The plate heat exchanger evaporator front pre-cooling mechanism, the plate heat exchanger is composed of a large number of thin plates, the narrow channels between the thin plates make the refrigerant and the compressed air fully heat exchange, a large amount of heat can be transferred under a small temperature difference, the energy utilization rate is improved, the structure is compact, the occupied area is small, the overall volume and weight of the cold dryer can be reduced, and the energy consumption during operation is reduced.

[0013] Additional aspects and advantages of the present application will be given in part in the following description, some of which will become apparent from the following description, or will be learned by practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0014] The present application will be further described below in combination with the drawings and embodiments.

[0015] Fig. 1 It is a side view of the plate heat exchanger evaporator front pre-cooling mechanism of the present application.

[0016] Fig. 2 It is a perspective view of the plate heat exchanger evaporator front pre-cooling mechanism of the present application.

[0017] Fig. 3 It is a split view of the plate heat exchanger evaporator front pre-cooling mechanism of the present application.

[0018] In the drawing: 1, pre-cooling system shell; 2, pre-cooling system heat exchange aluminum pipe; 3, head; 4, hot gas inlet; 5, pre-cooling system outlet; 6, plate heat exchanger; 7, condensate water outlet; 8, dry gas outlet; 9, automatic electronic drain valve; 10, fixed support. DETAILED DESCRIPTION

[0019] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be described clearly and completely. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative work are within the scope of the present application.

[0020] Please refer to Figs. 1-3 The present application provides a technical solution: a plate heat exchanger evaporator front pre-cooling mechanism, comprising: a pre-cooling system shell 1, the inside of the pre-cooling system shell 1 is sleeved with a pre-cooling system heat exchange aluminum pipe 2, the pre-cooling system heat exchange aluminum pipe 2 can be used to fully circulate the gas, so as to achieve the effect of cooling and heat exchange, both ends of the pre-cooling system shell 1 are covered with a head 3, the inside of the head 3 on one side is fixedly connected with a hot gas inlet 4, the high-temperature gas first enters through the hot gas inlet 4, and the gas is preliminarily heat-exchanged in the flow process of the pre-cooling system heat exchange aluminum pipe 2 inside the pre-cooling system shell 1, so as to further improve the gas temperature, avoid the defrosting of the cold dryer, reduce the working frequency of the adjusting system, and the inside of the head 3 on the other side is fixedly connected with a pre-cooling system outlet 5, the preliminarily cooled gas needs to pass through the pre-cooling system outlet 5 to flow into the inside of the stainless steel plate heat exchanger 6 again, so as to better exchange heat with the plate heat exchanger 6, reduce the use load of the compressor, the bottom end of the pre-cooling system shell 1 is fixedly connected with a dry gas outlet 8 on one side, the bottom end of the pre-cooling system shell 1 is fixedly connected with a condensate water outlet 7 on the other side, the evaporated gas of the plate heat exchanger 6 flows to the outlet, the condensate water is discharged through the condensate water outlet 7 under the action of gravity, the condensate water outlet 7 is fixedly connected with the plate heat exchanger 6 at one end, and the top end of the plate heat exchanger 6 is fixedly connected with the pre-cooling system outlet 5, the end of the condensate water outlet 7 is flange-connected with an automatic electronic drain valve 9, and the automatic electronic drain valve 9 is used to complete the control of the drainage work, one end of the dry gas outlet 8 is fixedly connected with a fixed support 10, the fixed support 10 is used to support and fix the installation of the overall structure, the fixed support 10 is fixedly connected with the hot gas inlet 4 on the upper side of one side, the dry gas outlet 8 is arranged in an arc shape, and the plate heat exchanger 6 is made of stainless steel.

[0021] Working principle: high temperature gas first through hot gas inlet 4 into, through the precooling system shell 1 inside precooling system heat exchange aluminum pipe 2 flow in the process of gas preliminary heat exchange, again promote gas temperature, avoid frost, reduce the adjustment system work frequency; preliminary cooling gas needs to pass through the precooling system outlet 5 flow again into the stainless steel plate exchange type heat exchanger 6 inside, with plate exchange type heat exchanger 6 can better heat exchange, reduce the use load of compressor, prolong the service life of compressor; after the gas of plate exchange type heat exchanger 6 evaporation flow to the outlet, condensate water under the action of gravity through condensate water outlet 7 discharge, and through automatic electronic drain valve 9 complete control drainage work.

[0022] The above embodiment of the present application is described in detail in combination with the drawings, but the present application is not limited to the above embodiment, and various changes can be made within the knowledge range possessed by those skilled in the art without departing from the purpose of the present application.

Claims

1. A plate-exchange evaporator pre-cooling mechanism, comprising a pre-cooling system housing (1), characterized in that: The interior of the precooling system shell (1) is provided with a precooling system heat exchange aluminum tube (2), and both ends of the precooling system shell (1) are covered with a head (3), the interior of the head (3) on one side is fixedly connected to a hot air inlet (4), and the interior of the head (3) on the other side is fixedly connected to a precooling system outlet (5), one side of the bottom end of the precooling system shell (1) is fixedly connected to a dry gas outlet (8), and the other side of the bottom end of the precooling system shell (1) is fixedly connected to a condensate outlet (7), one end of the condensate outlet (7) is fixedly connected to a plate heat exchanger (6), and the top end of the plate heat exchanger (6) is fixedly connected to the precooling system outlet (5), and the end flange of the condensate outlet (7) is connected to an automatic electronic drain valve (9).

2. The plate-exchange evaporator pre-cooling mechanism according to claim 1, characterized in that: One end of the drying gas outlet (8) is fixedly connected to a fixed bracket (10), and an upper side of the fixed bracket (10) is fixedly connected to the hot gas inlet (4).

3. The plate-exchange evaporator pre-cooling mechanism according to claim 1, characterized in that: The drying gas outlet (8) is arranged in an arc shape.

4. The plate-exchange evaporator pre-cooling mechanism according to claim 1, characterized in that: The plate heat exchanger (6) is made of stainless steel.

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