Anti-scaling device for plate heat exchanger

Abstract

The utility model belongs to the technical field of plate heat exchangers, and discloses an anti-scaling device for a plate heat exchanger, which comprises a main body assembly for water delivery and heat exchange, and further comprises a connecting assembly which is arranged at one end of the main body assembly and is used for sealing, connecting and fixing, and a hair rod assembly which is used for penetrating into hardened scale inside for replacement and maintenance is arranged on the connecting assembly; the connecting assembly comprises an end cover, an internal thread is arranged in the end cover, and a threaded sleeve is arranged in the middle of the end cover; the hair rod assembly comprises a hair rod body, a plurality of burrs are evenly distributed on the circumference of the hair rod body, and a stud head is arranged at one end of the hair rod body. According to the anti-scaling device for the plate heat exchanger, due to the arrangement of penetrating into hardened scale in the plate heat exchanger, scaling on the inner wall of a pipe is reduced, and meanwhile occupied space is reduced; through the arrangement of disassembly, replacement and maintenance, the convenience of maintenance is improved; and through the arrangement of sealed connection and fixation, the overall sealing performance is ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of plate heat exchangers, and particularly relates to an anti-scaling device for plate heat exchangers. Background Art

[0002] A plate heat exchanger is a highly efficient heat exchanger formed by stacking a series of metal sheets with a certain corrugated shape. Thin rectangular channels are formed between various plates, and heat exchange is carried out through the plates. The plate heat exchanger is an ideal device for liquid-liquid and liquid-vapor heat exchange. It has the characteristics of high heat exchange efficiency, small heat loss, compact and light structure, small floor area, wide application, long service life, etc.

[0003] The Chinese patent with the comparative announcement number CN211552550U discloses a plate heat exchanger with an anti-scaling function, which includes a first fixing plate, a second fixing plate, two water inlets, two water outlets, two water purification components and a plurality of heat exchange sheets. The first fixing plate and the second fixing plate are fixed by bolts. A plurality of the heat exchange sheets are arranged between the first fixing plate and the second fixing plate. The two water inlets are symmetrically arranged at the top end of the side wall of the first fixing plate, and the two water inlets penetrate through a plurality of the heat exchange sheets. The two water outlets are symmetrically arranged at the bottom end of the side wall of the first fixing plate, and the two water outlets penetrate through a plurality of the heat exchange sheets. The two water purification components are symmetrically arranged at the top of the first fixing plate, and the two water purification components are respectively communicated with the two water inlets.

[0004] However, the above patent has a large space occupation due to the external filtration, and it is impossible to deeply solve the caked water scale inside, so a new device needs to be designed. Summary of the Utility Model

[0005] The purpose of the utility model is to provide an anti-scaling device for a plate heat exchanger to solve the problems raised in the above background art.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] The anti-scaling device for a plate heat exchanger includes a main body component for conveying water and heat exchange, and further includes a connection component installed at one end of the main body component for sealing connection and fixation. A hair stick component for deeply replacing and maintaining the caked water scale inside is installed on the connection component; the connection component includes an end cover, an internal thread is arranged inside the end cover, and a threaded sleeve is arranged in the middle of the end cover; the hair stick component includes a hair stick body, a plurality of burrs are evenly distributed around the circumference of the hair stick body, and a screw head is arranged at one end of the hair stick body.

[0008] Further: The main body assembly includes a fixing frame. Mounting holes are evenly arranged at the four corners of the fixing frame. A number of heat exchange fins are installed in the middle of the fixing frame. A water inlet and outlet pipe is arranged at one end of the fixing frame. An external threaded pipe is arranged at the end of the fixing frame far from the water inlet and outlet pipe.

[0009] Further: Mounting holes are evenly arranged at the four corners of the fixing frame. The water inlet and outlet pipe, the heat exchange fins and the external threaded pipe are communicated with each other.

[0010] Further: The internal thread adopts pipe thread. The threaded sleeve and the end cover are integrally formed.

[0011] Further: The hair rod body is cylindrical and 50 cm long.

[0012] Further: The burrs, the hair rod body and the screw head are integrally formed.

[0013] Compared with the prior art, the beneficial effects are as follows:

[0014] 1. Through the arrangement of deeply internal caked scale, the scale on the inner wall of the pipe is reduced while the space occupation is decreased;

[0015] 2. Through the arrangement of disassembly, replacement and maintenance, the convenience of maintenance is improved;

[0016] 3. Through the arrangement of sealed connection and fixation, the overall sealing performance is ensured. Description of the Drawings

[0017] Figure 1 is a schematic structural diagram of the scale prevention device of the plate heat exchanger of the present invention;

[0018] Figure 2 is a schematic diagram of the main body assembly of the scale prevention device of the plate heat exchanger of the present invention;

[0019] Figure 3 is a front view of the main body assembly of the scale prevention device of the plate heat exchanger of the present invention;

[0020] Figure 4 is a schematic diagram of the connection assembly of the scale prevention device of the plate heat exchanger of the present invention;

[0021] Figure 5 is a schematic diagram of the hair rod assembly of the scale prevention device of the plate heat exchanger of the present invention.

[0022] In the reference numerals of the drawings: 101, fixing frame; 102, heat exchange fin; 103, water inlet and outlet pipe; 104, external threaded pipe; 105, mounting hole; 201, end cover; 202, threaded sleeve; 203, internal thread; 301, hair rod body; 302, burr; 303, screw head. Detailed Description of the Invention

[0023] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0024] Please refer to Figures 1 - 5 , a scale prevention device for a plate heat exchanger, which includes a main body component for heat exchange of water transportation, and further includes a connection component installed at one end of the main body component for sealed connection and fixation, and a wool rod component installed on the connection component for deeply entering the internal scale for replacement and maintenance.

[0025] In this embodiment: The main body component includes a fixing frame 101, mounting holes 105 are uniformly arranged at the four corners of the fixing frame 101, several heat exchange fins 102 are installed in the middle of the fixing frame 101, a water inlet and outlet pipe 103 is arranged at one end of the fixing frame 101, an external threaded pipe 104 is arranged at the end of the fixing frame 101 far from the water inlet and outlet pipe 103, the water inlet and outlet pipe 103, the heat exchange fins 102 and the external threaded pipe 104 are communicated, the fixing frame 101 is fixedly installed through the mounting holes 105, water liquid enters and exits the heat exchange fins 102 from the water inlet and outlet pipe 103 for heat exchange, and the external threaded pipe 104 fixes the end cover 201 through the internal thread 203;

[0026] In this embodiment: The connection component includes an end cover 201, an internal thread 203 is arranged inside the end cover 201, the internal thread 203 adopts a pipe thread, a threaded sleeve 202 is arranged in the middle of the end cover 201, the threaded sleeve 202 and the end cover 201 are integrally formed, the end cover 201 is screwed onto the external threaded pipe 104 through the internal thread 203, and the threaded sleeve 202 connects and fixes the wool rod body 301 through the screw head 303;

[0027] In this embodiment: The wool rod component includes a wool rod body 301, the wool rod body 301 is cylindrical, 50 cm long, several burrs 302 are evenly distributed on the circumference of the wool rod body 301, a screw head 303 is arranged at one end of the wool rod body 301, the burrs 302, the wool rod body 301 and the screw head 303 are integrally formed, the wool rod body 301 forms scale through the burrs 302, and the screw head 303 facilitates the disassembly and replacement of the wool rod body 301.

[0028] Working principle: The fixing frame 101 is fixedly installed through the mounting holes 105. The water liquid enters and exits the heat exchange fins 102 through the inlet and outlet water pipes 103 for heat exchange. At the same time, due to the huge contact surface between the burrs 302 and the water liquid, the water scale is caked on the burrs 302 of the hair rod body 301. During regular maintenance, first rotate the end cover 201 from the external thread pipe 104 through the internal thread 203, and then screw out the screw head 303 from the threaded sleeve 202, and then replace the hair rod body 301.

[0029] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A plate heat exchanger anti-scaling device, comprising a main body assembly for water transport and heat exchange, characterized in that: It also includes a connection assembly installed at one end of the main assembly for sealing connection and fixing, and a wool stick assembly is installed on the connection assembly for deep-reaching internal plate scale replacement and maintenance; The connection assembly comprises an end cover (201), an internal thread (203) is arranged in the end cover (201), and a threaded sleeve (202) is arranged in the middle of the end cover (201); The wool stick assembly comprises a wool stick body (301), a plurality of burrs (302) are evenly distributed on the circumference of the wool stick body (301), and a stud head (303) is arranged at one end of the wool stick body (301).

2. The plate heat exchanger anti-scaling device according to claim 1, characterized in that: The main body component comprises a fixing frame (101), a plurality of heat exchange plates (102) are installed in the middle of the fixing frame (101), an inlet and outlet water pipe (103) is arranged at one end of the fixing frame (101), and an external threaded pipe (104) is arranged at one end of the fixing frame (101) away from the inlet and outlet water pipe (103).

3. The plate heat exchanger anti-scaling device according to claim 2, characterized in that: The fixing frame (101) is evenly provided with mounting holes (105) at four corners, and the water inlet and outlet pipes (103), the heat exchange fins (102) and the externally threaded pipe (104) are connected.

4. The plate heat exchanger anti-scaling device according to claim 1, characterized in that: The internal thread (203) is a pipe thread, and the threaded sleeve (202) and the end cover (201) are integrally formed.

5. The plate heat exchanger anti-scaling device according to claim 1, characterized in that: The wool stick body (301) is cylindrical and 50 cm long.

6. The plate heat exchanger anti-scaling device according to claim 1, characterized in that: The burr (302), the burr rod body (301) and the stud head (303) are integrally formed.

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