Efficient plate heat exchanger for chemical industry

Abstract

The utility model discloses an efficient plate heat exchanger for chemical industry, which relates to the technical field of heat exchangers and particularly comprises a heat exchanger body, a multi-probe efficient flaw detector is fixed on the outer surface of the heat exchanger body, and probes are uniformly fixed at the top of an inner cavity of the heat exchanger body. The probe is connected with the multi-probe efficient flaw detector through a connecting line; a heat exchange assembly is arranged in an inner cavity of the heat exchanger body, the probe is in contact with a heat exchange plate of the heat exchange assembly, a liquid drainage structure is arranged on the heat exchanger body, and the liquid drainage structure comprises an air compressor and a liquid drainage air pipe. According to the efficient plate heat exchanger for the chemical industry, through the arrangement of the multi-probe efficient flaw detector, the multi-probe efficient flaw detector can conduct real-time flaw detection on the heat exchange plate through probes, so that a worker can know the state of the heat exchange plate in real time, and the damaged heat exchange plate can be conveniently replaced in time; and the reliability and the safety of the plate heat exchanger used in the chemical field are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to heat exchanger technical field, concretely is a kind of high-efficiency plate heat exchanger for chemical industry. BACKGROUND

[0002] Plate heat exchanger is by a series of with certain corrugated shape metal sheet stack and form thin rectangular channel between various sheet, heat exchange is carried out through sheet, and plate heat exchanger is ideal equipment for liquid-liquid, liquid-vapor heat exchange, and has wide application in chemical industry and other fields.

[0003] In prior art, some plate heat exchangers are disclosed, for example, the authorized patent with application number CN202320119135.4 discloses a plate heat exchanger, and its technical scheme points are as follows: a front end plate, a support column and a rear end plate are included, a plurality of sheet plates are sequentially and superimposedly installed between the front end plate and the rear end plate, a baffle is sequentially arranged between every two sheet plates, and the every two sheet plates are communicated through a connecting pipe; a support plate and a pressing plate and other components are installed between the front end plate and the rear end plate.

[0004] When plate heat exchanger is used, the heat exchange plate is easily cracked due to large temperature difference on both sides of the heat exchange plate, and the two fluids are mixed, which not only affects work efficiency, but also easily causes safety hazards. However, the plate heat exchanger of the above type cannot reflect the state of the heat exchange plate in real time when used, so that the damaged heat exchange plate cannot be replaced in the first time, and the liquid remaining in the heat exchange plate affects the replacement of the heat exchange plate. Based on this, the present application provides a high-efficiency plate heat exchanger for chemical industry. UTILITY MODEL CONTENTS

[0005] The utility model provides a kind of high-efficiency plate heat exchanger for chemical industry, solve the problem that staff cannot timely follow and replace damaged heat exchange plate in the above background art, and the liquid remaining in heat exchange plate affects the replacement of heat exchange plate.

[0006] The utility model provides the following technical scheme: a kind of high-efficiency plate heat exchanger for chemical industry, including heat exchanger body, the outer surface of the heat exchanger body is fixed with multiple-probe high-efficiency flaw detector, the top of the inner chamber of the heat exchanger body is uniformly fixed with probe, and the probe is connected with multiple-probe high-efficiency flaw detector by connecting line;The inner chamber of the heat exchanger body is equipped with heat exchange assembly, the probe is located above the heat exchange plate of heat exchange assembly, and the top of one side of heat exchange assembly is equipped with hot fluid inlet pipe;The low end of one side of heat exchange assembly is equipped with hot fluid discharge pipe, the top of the other side of heat exchange assembly is equipped with cold fluid discharge pipe, and the low end of the other side of heat exchange assembly is equipped with cold fluid inlet pipe;

[0007] The heat exchanger body is provided with a liquid discharge structure, the liquid discharge structure comprises an air compressor and a liquid discharge air pipe, one end of the hot fluid inlet pipe and the cold fluid inlet pipe is fixed with the liquid discharge air pipe, and the other end of the liquid discharge air pipe is fixedly connected with the air outlet end of the air compressor.

[0008] Preferably, the other end of the hot fluid inlet pipe and the cold fluid inlet pipe is provided with an electric ball valve I, and one end of the liquid discharge air pipe is provided with an electric ball valve II.

[0009] Preferably, the heat exchanger body comprises a shell and a top cover, the top of the shell is fixed with the top cover, the probe is connected with the top cover, and the heat exchange assembly is located in the inner cavity of the shell.

[0010] Preferably, the air compressor is fixed to the outer surface of the heat exchanger body, and the air inlet end of the air compressor is fixed with an air filter.

[0011] Compared with the prior art, the heat exchanger has the following beneficial effects:

[0012] 1. The high-efficiency plate heat exchanger for chemical industry is provided with a multi-probe high-efficiency flaw detector, which can detect the heat exchange plate in real time through the probe, so that the staff can know the state of the heat exchange plate in real time, the damaged heat exchange plate can be replaced in time, and the reliability and safety of the plate heat exchanger in the chemical industry are improved.

[0013] 2. The high-efficiency plate heat exchanger for chemical industry is provided with a liquid discharge structure, which can blow out the residual liquid in the heat exchange assembly and cool the heat exchange plate, shorten the interval between the discovery of the problem of the heat exchange plate and the disassembly of the heat exchange plate, improve the heat exchange plate replacement and maintenance efficiency, enable the plate heat exchanger to be quickly put into use, and further improve the working efficiency of the plate heat exchanger. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a front view of the structure of the utility model;

[0015] Figure 2 It is a back view of the structure of the utility model.

[0016] In the drawing: 1, shell; 2, top cover; 3, probe; 4, multi-probe high-efficiency flaw detector; 5, hot fluid inlet pipe; 6, liquid discharge air pipe; 7, electric ball valve II; 8, electric ball valve I; 9, air compressor; 10, hot fluid discharge pipe; 11, cold fluid inlet pipe; 12, cold fluid discharge pipe. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative efforts fall within the scope of the present application.

[0018] The present application provides an embodiment: please refer to Figure 1 and Figure 2 The present application provides an embodiment: please refer to Figure 1 and Figure 2 A high-efficiency plate heat exchanger for chemical industry comprises a heat exchanger body, the heat exchanger body comprises a shell 1 and a top cover 2, the top of the shell 1 is fixed with the top cover 2, and the shell 1 and the top cover 2 form a sealed cavity. The inner cavity of the shell 1 is provided with a heat exchange assembly, the heat exchange assembly is a prior art which has been disclosed in multiple authorized patent documents such as CN201710102605.5 and CN202223511181.3, and details are not repeated here. The low end of one side of the heat exchange assembly is provided with a hot fluid discharge pipe 10, the top end of the other side of the heat exchange assembly is provided with a cold fluid discharge pipe 12, and the low end of the other side of the heat exchange assembly is provided with a cold fluid inlet pipe 11.

[0019] The high-efficiency plate heat exchanger is provided with a multi-probe high-efficiency flaw detector 4, the multi-probe high-efficiency flaw detector 4 is fixed on the outer surface of the heat exchanger body, the connecting head of the multi-probe high-efficiency flaw detector 4 is connected with a probe 3 through a connecting line, the probe 3 is fixed on the top cover 2, the probe 3 is located above the heat exchange plates in the heat exchange assembly, and the probe 3 and the heat exchange plates in the heat exchange assembly are in one-to-one alignment, the multi-probe high-efficiency flaw detector 4 is an air-coupled ultrasonic flaw detector in the prior art, the multi-probe high-efficiency flaw detector 4 adopts a non-contact flaw detection technology to realize detection of defects of the heat exchange plates, in some embodiments of the present application, the multi-probe high-efficiency flaw detector 4 can be an American Ultrasonic Sciences Ltd (USL), and the model of the multi-probe high-efficiency flaw detector 4 can be selected according to requirements, which is not limited here. The probe 3 is a high-temperature-resistant and corrosion-resistant probe, and the specific model of the probe 3 can be selected according to requirements, which is not limited here.

[0020] Through the arrangement of the multi-probe high-efficiency flaw detector 4, the multi-probe high-efficiency flaw detector 4 can realize real-time flaw detection of the heat exchange plates, so that the staff can know the state of the heat exchange plates in real time, and the damaged heat exchange plates can be replaced in time.

[0021] The plate heat exchanger is provided with a liquid discharge structure, which comprises an air compressor 9 and a liquid discharge air pipe 6. The liquid discharge air pipe 6 is fixed at one end of the hot fluid inlet pipe 5 and the cold fluid inlet pipe 11, and the other end of the liquid discharge air pipe 6 is fixedly connected with the air outlet end of the air compressor 9. The other end of the hot fluid inlet pipe 5 and the cold fluid inlet pipe 11 is provided with an electric ball valve 8, and one end of the liquid discharge air pipe 6 is provided with an electric ball valve 7. The liquid discharge air pipe 6 is located on the side of the electric ball valve 8 close to the shell 1. When the electric ball valve 8 is closed and the electric ball valve 7 is opened, the air compressor 9 can blow air into the hot fluid inlet pipe 5 and the cold fluid inlet pipe 11 through the liquid discharge air pipe 6. The gas flowing in the hot fluid inlet pipe 5 and the cold fluid inlet pipe 11 can enter the heat exchange plate, thereby blowing out the fluid remaining between the adjacent two heat exchange plates, realizing rapid liquid discharge and cooling of the heat exchange assembly, improving the cooling efficiency of the heat exchange assembly, thereby shortening the time interval from discovering the problem of the heat exchange plate to disassembling the heat exchange plate, improving the heat exchange plate replacement and maintenance efficiency, enabling the plate heat exchanger to be quickly put into use, and thereby improving the working efficiency of the plate heat exchanger.

[0022] The air compressor 9 is fixed to the outer surface of the heat exchanger body, and the air inlet end of the air compressor 9 is fixedly connected with an air filter. The air filter can filter the air entering the liquid discharge air pipe 6, avoiding the influence of impurities in the air on the heat exchange assembly. In some embodiments of the present application, the air filter uses activated carbon and filter cotton to filter impurities in the air. In some embodiments of the present application, the model of the air filter can be HB-1175.

[0023] The electrical components involved in the present application are all prior art, and those skilled in the art understand their connection methods. Those skilled in the art connect all electrical components in the present application with their adapted power supply through wires, and select appropriate controllers according to actual conditions to meet control requirements. The specific connection and control sequence are described below. The working order of each electrical component is completed, and the detailed connection means is a known technology in the art. The working principle and process are mainly introduced below, and the electrical control is not described.

[0024] To sum up: the chemical industry uses high-efficiency plate heat exchanger, multi-probe high-efficiency flaw detector can detect the heat exchange plate in real time, so that the staff can know the state of the heat exchange plate in real time, and the damaged heat exchange plate can be replaced in time. When the heat exchange plate needs to be replaced, the plate heat exchanger stops working, and the electric ball valve one and the electric ball valve two work. The work of the electric ball valve one makes the hot fluid inlet pipe and the cold fluid inlet pipe in the closed state, and the work of the electric ball valve two makes the liquid discharge air pipe in the open state. The air compressor works, and the work of the air compressor makes the air filtered by the air filter enter between the heat exchange plates. The air pushes the residual liquid between the heat exchange plates out, realizes the liquid discharge and cooling of the heat exchange assembly, facilitates the dismounting of the heat exchange plate, and can avoid the damage of the residual liquid in the heat exchange assembly to the staff, and facilitates the application of the plate heat exchanger in the chemical industry.

[0025] The standard parts used in the utility model can be purchased from the market, the special-shaped parts can be ordered according to the description and the drawings, the specific connection mode of each part adopts the conventional means such as bolt in the prior art, the machinery, parts and equipment adopt the conventional type in the prior art, which will not be described in detail, the contents not described in detail in the specification belong to the prior art known by the professional personnel in the field, although the embodiments of the utility model have been shown and described, those skilled in the art can understand that the embodiments can be changed, modified, replaced and modified in various manners without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. A high-efficiency plate heat exchanger for chemical industry, comprising a heat exchanger body, characterized in that: The outer surface of the heat exchanger body is fixed with a multi-probe high-efficiency flaw detector (4), the top of the inner cavity of the heat exchanger body is uniformly fixed with a probe (3), the probe (3) is connected with the multi-probe high-efficiency flaw detector (4) through a connecting line; the inner cavity of the heat exchanger body is provided with a heat exchange assembly, the probe (3) is located above the heat exchange plate of the heat exchange assembly, the top of one side of the heat exchange assembly is provided with a hot fluid inlet pipe (5), the low end of one side of the heat exchange assembly is provided with a hot fluid discharge pipe (10), the top of the other side of the heat exchange assembly is provided with a cold fluid discharge pipe (12), and the low end of the other side of the heat exchange assembly is provided with a cold fluid inlet pipe (11).

2. The high-efficiency plate heat exchanger for chemical industry according to claim 1, characterized in that: The heat exchanger body is provided with a liquid discharge structure, the liquid discharge structure comprises an air compressor (9) and a liquid discharge air pipe (6), one end of the hot fluid inlet pipe (5) and the cold fluid inlet pipe (11) is fixed with the liquid discharge air pipe (6), and the other end of the liquid discharge air pipe (6) is fixedly connected with the air outlet end of the air compressor (9).

3. The high-efficiency plate heat exchanger for chemical industry according to claim 2, characterized in that: The other end of the hot fluid inlet pipe (5) and the cold fluid inlet pipe (11) is provided with an electric ball valve one (8), and one end of the liquid discharge air pipe (6) is provided with an electric ball valve two (7).

4. The high-efficiency plate heat exchanger for chemical industry according to claim 3, characterized in that: The heat exchanger body comprises a shell (1) and a top cover (2), the top of the shell (1) is fixed with the top cover (2), the probe (3) is connected with the top cover (2), and the heat exchange assembly is located in the inner cavity of the shell (1).

5. A high-efficiency plate heat exchanger for chemical industry according to claim 4, characterized in that: The air compressor (9) is fixed with the outer surface of the heat exchanger body, and the air inlet end of the air compressor (9) is fixed with an air filter.

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