Brazed plate heat exchanger

Abstract

The utility model discloses a brazed plate heat exchanger, including box body, detachable cover plate, sealing plug board and absorbent sponge, said box body inside is provided with heat exchanger main body, said box body inside bottom end is provided with the recess, said recess inside is fixedly connected with a plurality of water level sensor, said box body one side is provided with detachable cover plate, said box body one side is provided with the sealing plug board, said box body is provided with the absorbent sponge. A sealing groove is formed in one side of the box body, a partition plate is fixedly connected to the interior of the sealing groove, a sealing insertion plate is fixedly connected to the outer ring of one side of the detachable cover plate, the sealing insertion plate and the sealing groove are matched in an inserted mode, and a water absorption sponge is inserted into a sunken groove. According to the utility model, the detachable cover plate, the sealing detachable plate, the partition plate and the sealing groove are arranged, the bolts penetrate through the detachable cover plate and the box body and are in threaded fastening with the threaded holes, and the sealing insertion plate on one side of the detachable cover plate is inserted into the sealing groove and abuts against the partition plate in a sealing manner, so that stronger sealing fit is achieved, and the box body is in sealing fit with the detachable cover plate.

Description

Technical Field

[0001] The utility model relates to the technical field of brazed plate heat exchangers, and particularly relates to a brazed plate heat exchanger. Background Art

[0002] A brazed plate heat exchanger is a new type of high-efficiency heat exchanger formed by stacking a series of metal sheets with a certain corrugated shape and then undergoing brazing processing. Thin rectangular channels are formed between various plates, and heat exchange is carried out through the plates. Compared with conventional shell-and-tube heat exchangers, under the same flow resistance and pump power consumption, its heat transfer coefficient is much higher, and there is a tendency to replace shell-and-tube heat exchangers within the applicable range.

[0003] In the existing heat exchangers, the exchange operation is realized by the entry of cold and hot water during use. However, for cooling, condensed water will be generated, and for high temperatures, steam water droplets will be generated. The traditional method is for them to drip, which causes corrosion to the bottom of the heat exchanger or the box body, and even seeps and drips to the ground, affecting the use environment. At the same time, when the heat exchanger is used for a long time or ages, it is inevitable that seepage occurs and it cannot be immediately detected for maintenance operations, resulting in waste of resources and failure to perform maintenance operations in a timely manner. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a brazed plate heat exchanger. The sealing plug on one side of the detachable cover plate is inserted into the sealing groove and is in sealing contact with the partition plate, so as to achieve a strong sealing fit. Through the sealing fit of the box body and the detachable cover plate, the penetration of moisture can be effectively prevented.

[0005] To achieve the above purpose, a brazed plate heat exchanger is provided, which includes a box body, a detachable cover plate, a sealing plug and a water-absorbing sponge. The inside of the box body is provided with a heat exchanger main body. A recessed groove is opened at the bottom end inside the box body, and a plurality of water level sensors are fixedly connected inside the recessed groove. A detachable cover plate is arranged on one side of the box body. A sealing groove is opened on one side of the box body, and a partition plate is fixedly connected inside the sealing groove. A sealing plug is fixedly connected to the outer ring on one side of the detachable cover plate, and the sealing plug is inserted and matched with the sealing groove. A water-absorbing sponge is inserted into the recessed groove.

[0006] Threaded connecting pipes are fixedly connected to both ends on one side of the heat exchanger main body, and flow-through pipes are fixedly connected to both ends on the other side of the heat exchanger main body.

[0007] A plurality of through holes are opened inside the detachable cover plate, and the through holes are in penetrating fit with the threaded connecting pipes and the flow-through pipes, and there is a sealing ring fit between the through holes and the threaded connecting pipes and the flow-through pipes.

[0008] Threaded holes are opened at the four corners of the detachable cover plate and inside the box body, and bolts are threadedly connected inside the threaded holes.

[0009] A number of openings are provided inside the water-absorbing sponge. Beneficial effects

[0010] 1. The utility model is provided with a detachable cover plate, a sealing detachable plate, a partition plate and a sealing groove. The bolt passes through the detachable cover plate and the box body and is threadedly fastened with the threaded hole. One side of the detachable cover plate is inserted into the sealing groove in a sealed manner and is in sealed contact with the partition plate to achieve a strong sealing fit. Through the sealed fit of the box body and the detachable cover plate, the penetration of moisture can be effectively prevented, thus avoiding environmental pollution.

[0011] 2. The utility model is provided with a heat exchanger main body, a water-absorbing sponge and a water level sensor. When the heat exchanger main body reaches the service life or the pipeline ages and water seepage occurs, the water will drip into the interior of the water-absorbing sponge, and the water-absorbing sponge will absorb the water quality. The water-absorbing sponge mainly adsorbs the condensed water droplets or hot air water droplets generated by the heat exchanger main body to prevent them from dripping on the box body and causing corrosion damage. When there is continuous water leakage in the heat exchanger main body, the water flows through the opening to the water level sensor, and the water level sensor sends a signal to the controller. After receiving the signal, the controller sends it to the alarm to remind of the maintenance operation. Description of the drawings

[0012] Figure 1 It is a split structure diagram of a brazed plate heat exchanger of the utility model.

[0013] Figure 2 It is a split structure diagram of the concave groove and the water-absorbing sponge of a brazed plate heat exchanger of the utility model.

[0014] Figure 3 It is a three-dimensional structure diagram of a brazed plate heat exchanger of the utility model.

[0015] Figure 4 It is an enlarged structure diagram of the cooperation between the sealing plug and the sealing groove of a brazed plate heat exchanger of the utility model.

[0016] Legend description:

[0017] 1. Box body; 2. Sealing groove; 3. Heat exchanger main body; 4. Threaded connecting pipe; 5. Through hole; 6. Detachable cover plate; 7. Threaded hole; 8. Circulation pipeline; 9. Water-absorbing sponge; 10. Opening; 11. Water level sensor; 12. Concave groove; 13. Partition plate; 14. Sealing plug; 15. Bolt. Specific embodiments

[0018] Refer to Figures 1-4, an embodiment of the utility model provides a brazed plate heat exchanger, which includes a box body 1, a detachable cover plate 6, a sealing plug plate 14 and a water-absorbing sponge 9. The inside of the box body 1 is provided with a heat exchanger main body 3, and the circulation operation of cold and hot water is realized through the heat exchanger main body 3. A concave groove 12 is opened at the bottom end inside the box body 1, and the water-absorbing sponge 9 is fixed through the concave groove 12. A plurality of water level sensors 11 are fixedly connected inside the concave groove 12. When there is continuous water leakage in the heat exchanger main body 3, the water flows through the opening 10 to the water level sensor 11, and the water level sensor 11 sends a signal to the controller. After receiving the signal, the controller then sends it to the alarm to remind of the maintenance operation. The water level of the water level sensor 11 being covered by water volume can send a signal to the controller. A detachable cover plate 6 is arranged on one side of the box body 1, and a sealing groove 2 is opened on one side of the box body 1. Through the plug-in fit of the sealing groove 2 and the sealing plug plate 14, a sealing effect is achieved. A partition plate 13 is fixedly connected inside the sealing groove 2 to increase the blocking effect and prevent water penetration. A sealing plug plate 14 is fixedly connected to the outer circle of one side of the detachable cover plate 6, and the sealing plug plate 14 is in plug-in fit with the sealing groove 2. The water-absorbing sponge 9 is inserted inside the concave groove 12. When the heat exchanger main body 3 reaches the service life or the pipeline ages and water volume penetrates, it will drip into the inside of the water-absorbing sponge 9, and the water quality is absorbed through the water-absorbing sponge 9. The water-absorbing sponge 9 adsorbs the condensed water droplets or hot air water droplets generated by the heat exchanger main body 3 to prevent dripping on the box body 1 and causing corrosion damage. A plurality of openings 10 are opened inside the water-absorbing sponge 9 to facilitate the insertion of the hand to lift the water-absorbing sponge 9, and at the same time, it is also convenient for water to penetrate through the openings 10 to the surface of the water level sensor 11.

[0019] Threaded connecting pipes 4 are fixedly connected to both ends of one side of the heat exchanger main body 3, and circulation pipes 8 are fixedly connected to both ends of the other side of the heat exchanger main body 3. The sealing plug plate 14 on one side of the detachable cover plate 6 is inserted into the sealing groove 2 to make a sealing fit, and then through the circulation of cold and hot water in the circulation pipe 8, the heat exchange operation is realized. A plurality of through holes 5 are opened inside the detachable cover plate 6. The inside of the heat exchanger main body 3 is inserted into the box body 1, and then one ends of the threaded connecting pipe 4 and the circulation pipe 8 both penetrate through the through holes 5, and the through holes 5 are in through fit with the threaded connecting pipe 4 and the circulation pipe 8, and there is a sealing ring fit between the through holes 5 and the threaded connecting pipe 4 and the circulation pipe 8. Threaded holes 7 are opened at the four corners of the detachable cover plate 6 and inside the box body 1. The detachable cover plate 6 and the box body 1 are in contact fit, and bolts 15 penetrate through the detachable cover plate 6 and the box body 1 and are threadedly fastened to the threaded holes 7, and bolts 15 are threadedly connected inside the threaded holes 7.

[0020] During use, it is inserted into the interior of the box body 1 through the interior of the heat exchanger main body 3. Subsequently, one ends of the threaded connection pipe 4 and the circulation pipeline 8 both penetrate through the through hole 5. Then, the contact fit is achieved by disassembling the cover plate 6 and the box body 1, and the bolt 15 penetrates through the disassembling cover plate 6 and the box body 1 and is threadedly fastened to the threaded hole 7. One side of the disassembling cover plate 6, the sealing plug plate 14, is inserted into the interior of the sealing groove 2 to achieve a sealing fit. Subsequently, the cold and hot water circulates through the circulation pipeline 8 to achieve the heat exchange operation. At this time, when the heat exchanger main body 3 reaches the service life or the pipeline ages and water seepage occurs, the water will drip into the interior of the water-absorbing sponge 9, and the water-absorbing sponge 9 will absorb the water quality. The water-absorbing sponge 9 adsorbs the condensed water droplets or hot air water droplets generated by the heat exchanger main body 3 to prevent dripping on the box body 1 and causing corrosion damage. When there is continuous water leakage in the heat exchanger main body 3, the water flows through the opening 10 to the water level sensor 11, and the water level sensor 11 sends a signal to the controller. After receiving the signal, the controller then sends it to the alarm to remind of the maintenance operation. Through the sealing fit between the box body 1 and the disassembling cover plate 6, it can effectively prevent the penetration of water and pollute the environment.

Claims

1. A brazed plate heat exchanger, characterized in that: The invention comprises a box body (1), a disassembly cover plate (6), a sealing plug plate (14) and a water-absorbing sponge (9); a heat exchanger body (3) is arranged inside the box body (1); a recessed groove (12) is provided at the bottom end of the box body (1); a plurality of water level sensors (11) are fixedly connected inside the recessed groove (12); a disassembly cover plate (6) is arranged on one side of the box body (1); a sealing groove (2) is provided on one side of the box body (1); a partition plate (13) is fixedly connected inside the sealing groove (2); a sealing plug plate (14) is fixedly connected to the outer ring of one side of the disassembly cover plate (6); the sealing plug plate (14) and the sealing groove (2) are plugged together; and a water-absorbing sponge (9) is plugged into the inside of the recessed groove (12).

2. The brazed plate heat exchanger according to claim 1, characterized in that: The two ends of one side of the heat exchanger body (3) are fixedly connected to threaded connecting pipes (4), and the two ends of the other side of the heat exchanger body (3) are fixedly connected to flow pipes (8).

3. The brazed plate heat exchanger according to claim 1, characterized in that: A plurality of through holes (5) are provided inside the disassembly cover plate (6), and the through holes (5) are fitted with the threaded connection pipes (4) and the circulation pipes (8), and sealing rings are fitted between the through holes (5) and the threaded connection pipes (4) and the circulation pipes (8).

4. The brazed plate heat exchanger according to claim 1, characterized in that: The four corners of the disassembly cover plate (6) and the interior of the box body (1) are provided with threaded holes (7), and the interior of the threaded holes (7) are threadedly connected with bolts (15).

5. The brazed plate heat exchanger according to claim 1, characterized in that: The water-absorbing sponge (9) is provided with a plurality of openings (10) inside.

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