Plate-shell type heat exchanger

Abstract

The utility model relates to the technical field of heat exchangers, and discloses a lamella heat exchanger which comprises a bottom shell and an upper shell, sealing rings are installed at the joint of the bottom shell and heat exchange plates, the joint of the heat exchange plates and the upper shell and the joint of every two adjacent heat exchange plates, and each heat exchange plate comprises a heat conduction plate sheet. A hot water groove is formed in the upper end of the heat conducting plate, and a hot water convex groove corresponding to the hot water groove is formed in the inner side of the lower end of the heat conducting plate. Hot water flows along the hot water circulation pipeline formed between the hot water groove and the hot water convex groove, cold water is introduced into a cold water circulation position formed by the outer side of the hot water groove and the outer side of the hot water convex groove and the heat conduction plate, and efficient heat exchange is achieved; the temperature sensors are installed at the positions close to the cold water inlet ring and the cold water outlet ring correspondingly, the temperature of cold water between every two heat exchange plates before and after heat exchange can be monitored, then the heat exchange efficiency is known, and the heat exchange plates with the poor heat exchange efficiency are convenient to replace and maintain.

Description

TECHNICAL FIELD

[0001] The utility model relates to heat exchanger technical field, concretely is a plate and shell heat exchanger. BACKGROUND

[0002] The plate and shell heat exchanger is the advanced high -efficient, energy -conserving type heat exchange equipment in the world currently, and it is the heat exchanger with plate pipe as heat transfer element, and it has the characteristics of traditional plate heat exchanger and tube -shell heat exchanger, has compact, high -efficient, no sealing gasket, high temperature resistance, high pressure resistance characteristics, relative tube -shell heat exchanger, its weight is light, and the volume is small, and can effectively save space, therefore, get extensive application.

[0003] Chinese patent discloses plate and shell heat exchanger (grant announcement number CN205784752U), and the patent technology is convenient to open, and production efficiency is improved, and more can adapt to intermittent operation, frequent cleaning working condition, the strength of the cover body and the shell connecting surface is improved, and the sealing performance is good, prolongs the service life of heat exchanger, but it is inconvenient to replace the heat exchange plate, and the heat exchange plate with low heat exchange efficiency cannot be known. UTILITY MODEL CONTENT

[0004] The utility model discloses a plate and shell heat exchanger to solve the problem in the background art.

[0005] To achieve the above object, the utility model provides the following technical scheme:

[0006] A plate and shell heat exchanger, including bottom shell and upper shell, install a plurality of heat exchange plates between bottom shell and upper shell, the junction of bottom shell and heat exchange plate, the junction of heat exchange plate and upper shell and the junction of two adjacent heat exchange plates are all installed with sealing ring, the four corners of bottom shell, upper shell and heat exchange plate are all installed with long screw rod, the heat exchange plate includes heat conduction sheet, the upper end of heat conduction sheet is provided with hot water groove, and the inner side of the lower end of heat conduction sheet is provided with hot water convex groove corresponding to hot water groove, the both ends of hot water groove are connected with hot water inlet hole and hot water outlet hole respectively, the upper end of heat conduction sheet is provided with cold water inlet hole and cold water outlet hole away from hot water inlet hole and hot water outlet hole respectively, the both ends of hot water convex groove are connected with hot water inlet ring and hot water outlet ring respectively, the lower end of heat conduction sheet is provided with cold water inlet ring and cold water outlet ring away from hot water inlet ring and hot water outlet ring respectively, the lower end of heat conduction sheet is installed with a temperature sensor close to cold water inlet ring and cold water outlet ring.

[0007] As a further embodiment of this utility model: the hot water inlet hole and the hot water inlet ring are connected, the hot water outlet hole and the hot water outlet ring are connected, the cold water inlet hole and the cold water inlet ring are connected, and the cold water outlet hole and the cold water outlet ring are connected. Both the cold water inlet ring and the cold water outlet ring have flow ports near the temperature sensor.

[0008] As a further embodiment of this utility model: one end of the temperature sensor is electrically connected to a wire, a sealing sleeve is fitted on the outside of the wire, and the wire passes through one end of the heat-conducting plate.

[0009] As a further improvement of this utility model: screw holes are provided at all four corners of the heat-conducting plate, and upper sealing grooves and lower sealing grooves are respectively provided on the outer sides of the upper and lower ends of the heat-conducting plate.

[0010] As a further embodiment of this utility model: the four corners of the upper end of the upper shell are respectively connected to a cold water inlet pipe, a hot water inlet pipe, a cold water outlet pipe and a hot water outlet pipe, wherein the cold water inlet pipe and the cold water outlet pipe are arranged diagonally, and the hot water inlet pipe and the hot water outlet pipe are also arranged diagonally.

[0011] As a further improvement of this utility model: heat insulation pads are embedded in the inner sides of both the bottom shell and the top shell, and support feet are fixedly connected to the four corners of the lower end of the bottom shell.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] This invention achieves efficient heat exchange by allowing hot water to flow through a hot water circulation pipe formed between the hot water groove and the hot water protrusion, while introducing cold water into the outer side of the hot water groove and the hot water protrusion to form a cold water circulation area with the heat-conducting plates. By installing a temperature sensor near both the cold water inlet ring and the cold water outlet ring, the temperature of the cold water before and after heat exchange between each pair of heat exchange plates can be monitored, thereby determining the heat exchange efficiency and facilitating the replacement and maintenance of heat exchange plates with poor heat exchange efficiency. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of a plate-and-shell heat exchanger.

[0015] Figure 2 This is an exploded structural diagram of a plate-and-shell heat exchanger.

[0016] Figure 3 This is a top view of the heat exchange plate structure in a plate-and-shell heat exchanger.

[0017] Figure 4 This is a bottom view of the heat exchange plate structure in a plate-and-shell heat exchanger.

[0018] Figure 5 forFigure 4 A magnified structural diagram of part A in the middle.

[0019] In the diagram: 1. Bottom shell; 11. Heat insulation pad; 12. Support leg; 2. Upper shell; 21. Cold water inlet pipe; 22. Cold water outlet pipe; 23. Hot water inlet pipe; 24. Hot water outlet pipe; 3. Sealing ring; 4. Heat exchange plate; 41. Cold water inlet; 42. Cold water outlet; 43. Hot water inlet; 44. Hot water outlet; 45. Hot water groove; 46. Cold water inlet ring; 47. Cold water outlet ring; 48. Hot water inlet ring; 49. Hot water outlet ring; 410. Upper sealing groove; 411. Lower sealing groove; 412. Hot water protrusion; 413. Flow port; 414. Temperature sensor; 415. Wire; 416. Sealing sleeve; 417. Heat-conducting plate; 418. Screw hole; 5. Long screw. Detailed Implementation

[0020] Please see Figures 1-5 In this embodiment of the present invention, a plate-and-shell heat exchanger includes a bottom shell 1 and an upper shell 2. A plurality of heat exchange plates 4 are installed between the bottom shell 1 and the upper shell 2. Sealing rings 3 are installed at the junctions of the bottom shell 1 and the heat exchange plates 4, the junctions of the heat exchange plates 4 and the upper shell 2, and the junctions of two adjacent heat exchange plates 4. The sealing rings 3 prevent leakage at the junctions of the bottom shell 1 and the heat exchange plates 4, the junctions of the heat exchange plates 4 and the upper shell 2, and the junctions of two adjacent heat exchange plates 4. The four... A long screw 5 is installed through the corners, which can fix the bottom shell 1, the upper shell 2 and the heat exchange plate 4 together and facilitate disassembly and assembly. The four corners of the upper end of the upper shell 2 are respectively connected to the cold water inlet pipe 21, the hot water inlet pipe 23, the cold water outlet pipe 22 and the hot water outlet pipe 24. The cold water inlet pipe 21 and the cold water outlet pipe 22 are arranged diagonally, and the hot water inlet pipe 23 and the hot water outlet pipe 24 are also arranged diagonally, so as to ensure that the water flows along a longer flow path and that the hot and cold water can fully exchange heat.

[0021] exist Figure 3 , Figure 4 and Figure 5In the heat exchange plate 4, a heat-conducting plate 417 is provided. A hot water groove 45 is formed at the upper end of the heat-conducting plate 417, and a hot water protrusion 412 corresponding to the hot water groove 45 is provided on the inner side of the lower end of the heat-conducting plate 417. A hot water inlet 43 and a hot water outlet 44 are respectively connected to the two ends of the hot water groove 45. A cold water inlet 41 and a cold water outlet 42 are respectively formed at the upper end of the heat-conducting plate 417 away from the hot water inlet 43 and the hot water outlet 44. A hot water inlet ring 48 and a hot water outlet ring 49 are respectively connected to the two ends of the hot water protrusion 412. A cold water inlet ring 41 and a cold water outlet ring 49 are respectively connected to the lower end of the heat-conducting plate 417 away from the hot water inlet ring 48 and the hot water outlet ring 49. A cold water inlet ring 46 and a cold water outlet ring 47 are respectively provided. When the two heat-conducting plates 417 are put together, the hot water groove 45 and the hot water protrusion 412 can form a hot water flow pipe, and a cold water flow area is formed between the outer side of the hot water groove 45 and the hot water protrusion 412 and the heat-conducting plate 417. A temperature sensor 414 is installed at the lower end of the heat-conducting plate 417 near the cold water inlet ring 46 and the cold water outlet ring 47. The temperature sensor 414 can monitor the temperature of the cold water before and after heat exchange between two heat exchange plates 4, and thus know the heat exchange efficiency, which facilitates the replacement and maintenance of heat exchange plates 4 with poor heat exchange efficiency.

[0022] exist Figure 3 and Figure 4 In the heat exchanger, hot water inlet 43 is connected to hot water inlet ring 48, and hot water outlet 44 is connected to hot water outlet ring 49, allowing hot water to flow from one heat-conducting plate 417 to the next, and allowing the hot water after heat exchange in all heat-conducting plates 417 to collect and flow out. Cold water inlet 41 is connected to cold water inlet ring 46, and cold water outlet 42 is connected to cold water outlet ring 47. Both cold water inlet ring 46 and cold water outlet ring 47 have flow ports 413 near the temperature sensor 414, allowing cold water to flow from one heat-conducting plate 417 to the next, and allowing the cold water after heat absorption in all heat-conducting plates 417 to collect and flow out. The flow ports 413 allow cold water to flow smoothly into different heat-conducting plates 417.

[0023] exist Figure 4 and Figure 5 In the process, one end of the temperature sensor 414 is electrically connected to a wire 415, and a sealing sleeve 416 is sleeved on the outside of the wire 415. The wire 415 passes through one end of the heat-conducting plate 417. The sealing sleeve 416 keeps the junction between the wire 415 and the heat-conducting plate 417 sealed and prevents leakage.

[0024] exist Figure 1 and Figure 2In the middle, the heat-conducting plate 417 has screw holes 418 at all four corners. By inserting the long screw 5 into the screw holes 418, multiple heat-conducting plates 417 can be installed into a whole structure. The upper and lower outer sides of the heat-conducting plate 417 are respectively provided with upper sealing grooves 410 and lower sealing grooves 411. The sealing rings 3 are respectively installed in the upper sealing grooves 410 and lower sealing grooves 411. When multiple heat-conducting plates 417 are installed into a whole structure, leakage at the joint can be prevented.

[0025] exist Figure 1 and Figure 2 In the middle, heat insulation pads 11 are embedded and installed on the inner side of both the bottom shell 1 and the upper shell 2 to reduce heat loss. The four corners of the lower end of the bottom shell 1 are fixedly connected with support feet 12, which can provide support for the entire heat exchanger.

[0026] The working principle of this utility model is as follows: Hot water is introduced through the hot water inlet pipe 23, and cold water is introduced through the cold water inlet pipe 21. The hot water enters the hot water inlet hole 43 through the hot water inlet pipe 23, and part of the hot water flows along the hot water flow pipe formed between the hot water groove 45 and the hot water protrusion 412, and then flows into the hot water outlet hole 44; another part of the hot water flows into a heat-conducting plate 417 through the hot water inlet hole 43 and the hot water inlet ring 48. At the same time, cold water enters the cold water inlet hole 41 through the cold water inlet pipe 21, and part of the cold water flows into the cold water outlet hole 44. The water inlet pipe 21 enters the outer side of the hot water groove 45 and the hot water protrusion 412, forming a cold water flow point with the heat-conducting plate 417, and then flows into the cold water outlet 42. Another part of the cold water flows into a heat-conducting plate 417 between the cold water inlet 41 and the cold water inlet ring 46. The hot water and cold water transfer heat inside and outside the hot water groove 45 and the hot water protrusion 412. The hot water releases heat and cools down, while the cold water absorbs heat and heats up, thus completing the heat exchange. The hot water that has released heat flows out from the hot water outlet pipe 24, and the cold water that has absorbed heat flows out from the cold water outlet pipe 22.

[0027] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A plate-and-shell heat exchanger, comprising a bottom shell (1) and an upper shell (2), wherein a plurality of heat exchange plates (4) are installed between the bottom shell (1) and the upper shell (2), and sealing rings (3) are installed at the junctions of the bottom shell (1) and the heat exchange plates (4), the junctions of the heat exchange plates (4) and the upper shell (2), and the junctions of two adjacent heat exchange plates (4), wherein long screws (5) are installed through the four corners of the bottom shell (1), the upper shell (2), and the heat exchange plates (4), characterized in that, The heat exchange plate (4) includes a heat-conducting plate (417). A hot water groove (45) is provided at the upper end of the heat-conducting plate (417), and a hot water protrusion (412) corresponding to the hot water groove (45) is provided on the inner side of the lower end of the heat-conducting plate (417). A hot water inlet (43) and a hot water outlet (44) are respectively connected to both ends of the hot water groove (45). A cold water inlet is provided at the upper end of the heat-conducting plate (417) away from the hot water inlet (43) and the hot water outlet (44). The hot water groove (412) has a hole (41) and a cold water outlet hole (42). The two ends of the hot water groove (412) are respectively connected to a hot water inlet ring (48) and a hot water outlet ring (49). The lower end of the heat-conducting plate (417) is provided with a cold water inlet ring (46) and a cold water outlet ring (47) away from the hot water inlet ring (48) and the hot water outlet ring (49). A temperature sensor (414) is installed at the lower end of the heat-conducting plate (417) near the cold water inlet ring (46) and the cold water outlet ring (47).

2. A plate-and-shell heat exchanger according to claim 1, characterized in that, The hot water inlet (43) is connected to the hot water inlet ring (48), the hot water outlet (44) is connected to the hot water outlet ring (49), the cold water inlet (41) is connected to the cold water inlet ring (46), the cold water outlet (42) is connected to the cold water outlet ring (47), and the cold water inlet ring (46) and the cold water outlet ring (47) are both provided with flow ports (413) near the temperature sensor (414).

3. A plate-and-shell heat exchanger according to claim 1, characterized in that, One end of the temperature sensor (414) is electrically connected to a wire (415), and a sealing sleeve (416) is fitted around the outside of the wire (415). The wire (415) passes through one end of the heat-conducting plate (417).

4. A plate-and-shell heat exchanger according to claim 1, characterized in that, The heat-conducting plate (417) has screw holes (418) at all four corners, and the upper and lower outer sides of the heat-conducting plate (417) are respectively provided with an upper sealing groove (410) and a lower sealing groove (411).

5. A plate-and-shell heat exchanger according to claim 1, characterized in that, The upper shell (2) has four corners connected to a cold water inlet pipe (21), a hot water inlet pipe (23), a cold water outlet pipe (22), and a hot water outlet pipe (24), respectively. The cold water inlet pipe (21) and the cold water outlet pipe (22) are arranged diagonally, and the hot water inlet pipe (23) and the hot water outlet pipe (24) are also arranged diagonally.

6. A plate-and-shell heat exchanger according to claim 1, characterized in that, Heat insulation pads (11) are embedded in the inner sides of both the bottom shell (1) and the top shell (2), and support legs (12) are fixedly connected to the four corners of the lower end of the bottom shell (1).

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