Double-wall plate type heat exchanger

Abstract

The utility model discloses a double-wall plate type heat exchanger, which particularly relates to the technical field of heat exchangers and comprises a fixing plate, and one side of the fixing plate is fixedly connected with an adjusting heat exchange mechanism. The adjusting heat exchange mechanism comprises a first heat exchange plate, three first hot water inlets are formed in one side of the first heat exchange plate, three first hot water outlets are formed in the other side of the first heat exchange plate, one end of each first hot water inlet communicates with a first hot water pipe, and a first cold water outlet is formed in one side of each first hot water inlet. The first cold water outlet is formed in one side of the first heat exchange plate, and a first cold water inlet is formed in one side of the first hot water outlet and formed in the other side of the first heat exchange plate. According to the utility model, the number of hot water entering the first hot water inlet and the number of cold water entering the first cold water inlet are changed by adjusting the heat exchange mechanism, so that the water temperature reduction speed is changed, and the change of the water temperature reduction speed is more flexible.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchangers, and more specifically, to a double-wall plate heat exchanger. Background Art

[0002] Double-wall plate heat exchanger is a specially designed plate heat exchanger. Its core feature is that it uses a double plate formed by stamping two single plates at one time to replace a single plate. The seal between the two plates is achieved by laser welding or flat gaskets on the four-hole part of the plate. This design can effectively prevent harmful reactions between the two media, because once a leak occurs, the fluid will flow out from the space between the two plates. Double-wall plate heat exchanger uses a double plate formed by stamping two single plates at one time to replace a single plate. The seal between the two plates is achieved by laser welding or flat gaskets on the four-hole part of the plate. This design effectively prevents fluid leakage and mixing, meeting special needs.

[0003] The utility model patent with publication number (CN216482428U) discloses a double-walled plate heat exchanger. The double-walled plate heat exchanger of the utility model has an ingenious structure. This structure can avoid the difficulty of repairing the brazed plate heat exchanger and save the maintenance cost, and can also avoid the problem of easy leakage of the pure detachable plate heat exchanger. In addition, it has good sealing, high reliability, strong practicality, and is worthy of promotion. However, in actual use, the cooling speed of hot water can only be adjusted by controlling the speed of water flow. Therefore, when the hot water temperature needs to be quickly reduced, the hot water flow rate can only be slowed down or the cold water flow rate can be increased, which will reduce the heat exchange efficiency and poor flexibility. Utility Model Content

[0004] In order to overcome the above defects of the prior art, the utility model provides a double-walled plate heat exchanger to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a double-walled plate heat exchanger, comprising a fixed plate, one side of which is fixedly connected with a heat-exchange regulating mechanism;

[0006] The regulating heat exchange mechanism includes a first heat exchange plate, three first hot water inlets are provided on one side of the first heat exchange plate, three first hot water outlets are provided on the other side of the first heat exchange plate, one end of the first hot water inlet is connected with a first hot water pipe, a first cold water outlet is provided on one side of the first hot water inlet, the first cold water outlet is provided on one side of the first heat exchange plate, a first cold water inlet is provided on one side of the first hot water outlet, the first cold water inlet is provided on the other side of the first heat exchange plate, one side of the first cold water outlet is connected with a first cold water pipe, a second heat exchange plate is fixedly connected to one side of the first heat exchange plate, a second hot water inlet is provided on one side of the second heat exchange plate, and the number of hot water entering the first hot water inlet and the number of cold water entering the first cold water inlet are changed by regulating the heat exchange mechanism, thereby changing the water temperature reduction speed, making the change of the water temperature reduction speed more flexible.

[0007] As a further description of the above technical solution:

[0008] A second cold water outlet is provided on one side of the second hot water inlet, and the second cold water outlet is opened on one side of the second heat exchange plate, and a second hot water outlet is opened on the other side of the second heat exchange plate, and a second cold water inlet is provided on one side of the second hot water outlet, and the second cold water inlet is opened on the other side of the second heat exchange plate, and a second hot water pipe is connected to one side of the second hot water inlet, and a second cold water pipe is connected to one side of the second cold water outlet, and hot water enters the second hot water pipe from the second hot water outlet through the second hot water inlet.

[0009] As a further description of the above technical solution:

[0010] According to the double-walled plate heat exchanger described in the claim, a first fixing rod is fixedly connected to one side of the fixed plate, the first fixing rod passes through the fixed plate and the transition plate and extends to one side of the other fixed plate, a second fixing rod is provided at the bottom of the first fixing rod, the second fixing rod passes through the fixed plate, the first heat exchange plate, the second heat exchange plate, and the transition plate, and the whole is fixed by the first fixing rod and the second fixing rod.

[0011] As a further description of the above technical solution:

[0012] A mounting groove is provided at the bottom of the fixing plate, a hydraulic telescopic rod is fixedly connected to the top of the inner wall of the mounting groove, a universal wheel is fixedly connected to the bottom of the hydraulic telescopic rod, a mounting edge is fixedly connected to one side of the fixing plate, a plurality of threaded holes are provided at the top of the mounting edge, and moving the heat exchanger by the universal wheel saves more effort.

[0013] Compared with the prior art, the technical effects and advantages of the utility model are as follows:

[0014] 1. By setting the heat exchange mechanism, when the water temperature reduction speed needs to be changed, the number of hot water entering the first hot water inlet is changed, and the number of cold water entering the first cold water inlet is changed, thereby changing the water temperature reduction speed, making the change of the water temperature reduction speed more flexible;

[0015] 2. By setting a hydraulic telescopic rod and a universal wheel, start the hydraulic telescopic rod to extend the universal wheel, and then push the heat exchanger to move. When it moves to the specified position, start the hydraulic telescopic rod to shorten the universal wheel and retract it into the installation groove, so that the movement of the heat exchanger is more labor-saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0017] Figure 2 It is a side structural schematic diagram of the regulating heat exchange mechanism of the utility model.

[0018] Figure 3 This is a schematic diagram of the structure of the first heat exchange plate of the utility model.

[0019] Figure 4 This is a schematic diagram of the structure of the second heat exchange plate of the utility model.

[0020] Figure 5 It is a three-dimensional structural schematic diagram of the utility model.

[0021] The accompanying drawings are marked as follows: 1. fixed plate; 2. first heat exchange plate; 3. first hot water inlet; 4. first hot water outlet; 5. first hot water pipe; 6. first cold water outlet; 7. first cold water inlet; 8. first cold water pipe; 9. second heat exchange plate; 10. second hot water inlet; 11. second cold water outlet; 12. second hot water outlet; 13. second cold water inlet; 14. second hot water pipe; 15. second cold water pipe; 16. transition plate; 17. first fixed rod; 18. second fixed rod; 19. mounting groove; 20. hydraulic telescopic rod; 21. universal wheel; 22. mounting edge; 23. threaded hole. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] As attached Figure 1-5 A double-wall plate heat exchanger shown includes a fixed plate 1, one side of which is fixedly connected to a heat-exchange regulating mechanism;

[0024] The regulating heat exchange mechanism includes a first heat exchange plate 2, three first hot water inlets 3 are provided on one side of the first heat exchange plate 2, three first hot water outlets 4 are provided on the other side of the first heat exchange plate 2, one end of the first hot water inlet 3 is connected with a first hot water pipe 5, a first cold water outlet 6 is provided on one side of the first hot water inlet 3, the first cold water outlet 6 is provided on one side of the first heat exchange plate 2, a first cold water inlet 7 is provided on one side of the first hot water outlet 4, the first cold water inlet 7 is provided on the other side of the first heat exchange plate 2, one side of the first cold water outlet 6 is connected with a first cold water pipe 8, and one side of the first heat exchange plate 2 is fixedly connected with a second heat exchange plate 9. A second hot water inlet 10 is provided on one side of the second heat exchange plate 9, a second cold water outlet 11 is provided on one side of the second hot water inlet 10, the second cold water outlet 11 is provided on one side of the second heat exchange plate 9, a second hot water outlet 12 is provided on the other side of the second heat exchange plate 9, a second cold water inlet 13 is provided on one side of the second hot water outlet 12, the second cold water inlet 13 is provided on the other side of the second heat exchange plate 9, a second hot water pipe 14 is connected to one side of the second hot water inlet 10, and a second cold water pipe 15 is connected to one side of the second cold water outlet 11. By adjusting the heat exchange mechanism, the water temperature reduction speed can be changed more flexibly.

[0025] In some embodiments, according to Figure 1 As shown, a mounting groove 19 is provided at the bottom of the fixed plate 1, a hydraulic telescopic rod 20 is fixedly connected to the top of the inner wall of the mounting groove 19, a universal wheel 21 is fixedly connected to the bottom of the hydraulic telescopic rod 20, a mounting edge 22 is fixedly connected to one side of the fixed plate 1, and a plurality of threaded holes 23 are provided at the top of the mounting edge 22. By arranging the hydraulic telescopic rod 20 and the universal wheel 21, it is easier to move the heat exchanger.

[0026] Working principle of the utility model: during use, hot water enters from multiple first hot water inlets 3, flows into the second hot water inlet 10 from the first hot water inlet 3 through the first hot water pipe 5, and finally flows out from the second hot water outlet pipe through the second hot water inlet pipe; cold water enters from multiple first cold water inlets 7, flows into the second cold water inlet 13 from the first cold water inlet 7 through the first cold water pipe 8, and finally flows out from the second cold water outlet pipe through the second cold water inlet pipe. When it is necessary to change the water temperature reduction speed, the number of hot water entering the first hot water inlet 3 is changed, and the number of cold water entering the first cold water inlet 7 is changed, thereby changing the water temperature reduction speed, making the change of the water temperature reduction speed more flexible. When it is necessary to move, start the hydraulic telescopic rod 20 to extend the universal wheel to push out, and then push the heat exchanger to move. When it moves to the specified position, start the hydraulic telescopic rod 20 to shorten the universal wheel 21 and retract it into the mounting groove 19, thereby saving more effort to move the heat exchanger.

Claims

1. A double-wall plate heat exchanger, comprising a fixed plate (1), characterized in that: A heat exchange regulating mechanism is fixedly connected to one side of the fixed plate (1); The regulating heat exchange mechanism comprises a first heat exchange plate (2), one side of the first heat exchange plate (2) is provided with three first hot water inlets (3), the other side of the first heat exchange plate (2) is provided with three first hot water outlets (4), one end of the first hot water inlet (3) is connected to a first hot water pipe (5), one side of the first hot water inlet (3) is provided with a first cold water outlet (6), the first cold water outlet (6) is provided on one side of the first heat exchange plate (2), one side of the first hot water outlet (4) is provided with a first cold water inlet (7), the first cold water inlet (7) is provided on the other side of the first heat exchange plate (2), one side of the first cold water outlet (6) is connected to a first cold water pipe (8), one side of the first heat exchange plate (2) is fixedly connected to a second heat exchange plate (9), and one side of the second heat exchange plate (9) is provided with a second hot water inlet (10).

2. A double-wall plate heat exchanger according to claim 1, characterized in that: A second cold water outlet (11) is provided on one side of the second hot water inlet (10), the second cold water outlet (11) is opened on one side of the second heat exchange plate (9), a second hot water outlet (12) is opened on the other side of the second heat exchange plate (9), a second cold water inlet (13) is provided on one side of the second hot water outlet (12), the second cold water inlet (13) is opened on the other side of the second heat exchange plate (9), a second hot water pipe (14) is connected to one side of the second hot water inlet (10), and a second cold water pipe (15) is connected to one side of the second cold water outlet (11).

3. A double-wall plate heat exchanger according to claim 2, characterized in that: One side of the second heat exchange plate (9) is fixedly connected to a transition plate (16), and the other side of the transition plate (16) is fixedly connected to the first heat exchange plate (2).

4. A double-wall plate heat exchanger according to claim 1, characterized in that: A first fixing rod (17) is fixedly connected to one side of the fixing plate (1), the first fixing rod (17) passes through the fixing plate (1) and the transition plate (16) and extends to the other side of the fixing plate (1), a second fixing rod (18) is provided at the bottom of the first fixing rod (17), the second fixing rod (18) passes through the fixing plate (1), the first heat exchange plate (2), the second heat exchange plate (9), and the transition plate (16).

5. A double-wall plate heat exchanger according to claim 1, characterized in that: A mounting groove (19) is provided at the bottom of the fixing plate (1), a hydraulic telescopic rod (20) is fixedly connected to the top of the inner wall of the mounting groove (19), a universal wheel (21) is fixedly connected to the bottom of the hydraulic telescopic rod (20), a mounting edge (22) is fixedly connected to one side of the fixing plate (1), and a plurality of threaded holes (23) are provided at the top of the mounting edge (22).

6. A double-wall plate heat exchanger according to claim 1, characterized in that: The first hot water outlet (4) is connected to the second hot water inlet (10), the first cold water inlet (7) is connected to the second cold water outlet (11), one end of the first hot water pipe (5) is connected to the first hot water outlet (4), and one end of the first cold water pipe (8) is connected to the first cold water inlet (7).

7. A double-wall plate heat exchanger according to claim 2, characterized in that: One end of the second hot water pipe (14) is in communication with the second hot water outlet (12), and one end of the second cold water pipe (15) is in communication with the second cold water inlet (13).

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