Brazed plate heat exchanger

Abstract

A brazed plate heat exchanger comprises a fixing plate, a plurality of corrugated plates are stacked on the fixing plate, a screw is arranged on the fixing plate in a threaded mode, a nut is arranged on the screw in a threaded mode, a water inlet pipe and a water outlet pipe are connected and communicated to the fixing plate, a detection disc is arranged on the water inlet pipe in a sleeved mode, and the detection disc is connected with a water inlet pipe. A measuring rod is rotatably arranged on the detection disc, the measuring rod penetrates through the water inlet pipe, and a first glass plate is arranged on the detection disc. The measuring rod is driven to rotate when fluid enters the water inlet pipe, so that the measuring rod points out the current fluid pressure value in the detection disc, fluid pressure changes can be known in real time conveniently, corresponding measures can be taken when the fluid pressure is too large, and normal operation of the device is guaranteed.

Description

Technical Field

[0001] The utility model relates to a heat exchanger, in particular to a brazing plate heat exchanger. Background Art

[0002] The brazed plate heat exchanger is a new type of high-efficiency heat exchanger made by brazing a series of metal sheets with a certain corrugated shape. It consists of a heat exchange plate for transmitting heat, a clamping device for clamping the heat exchange plate, an inlet and outlet pipe for importing and exporting the medium, a guide plate for guiding the flow of the medium in the plate, and a sealing gasket located between the heat exchange plate and the clamping device for sealing. The principle is to form a thin rectangular channel between various metal sheets so that heat exchange can be achieved when water flows in the thin rectangular channel.

[0003] The current brazed plate heat exchanger lacks the function of displaying the internal fluid pressure when in use, resulting in the user being unable to promptly detect and take corresponding measures when the pressure between the metal sheets increases under higher fluid pressure, causing the sealing gasket to be damaged due to excessive pressure, thus affecting the normal use of the brazed plate heat exchanger.

[0004] Therefore, there is an urgent need to provide a brazed plate heat exchanger with a function of displaying fluid pressure. Utility Model Content

[0005] In order to overcome the disadvantage that the current brazed plate heat exchanger lacks the function of displaying the internal fluid pressure, resulting in the user being unable to promptly discover and take corresponding measures when the pressure between the metal sheets increases under higher fluid pressure, thereby causing the sealing gasket to be damaged due to excessive pressure, thereby affecting the normal use of the brazed plate heat exchanger, the utility model provides a brazed plate heat exchanger with the function of displaying the fluid pressure.

[0006] In order to solve the above problems, the utility model adopts the following technical scheme: a brazed plate heat exchanger, comprising a fixed plate, on which a plurality of corrugated plates are stacked, on which screws are threadedly arranged, on which nuts are threadedly arranged, a water inlet pipe and a water outlet pipe are connected and communicated with each other on the fixed plate, a detection disc is sleeved on the water inlet pipe, on which a measuring rod is rotatably arranged, the measuring rod passes through the water inlet pipe, and a first glass plate is arranged on the detection disc.

[0007] Furthermore, a circle of pressure values ​​is provided in the detection disc.

[0008] Furthermore, the water inlet pipe is connected and communicated with a support frame, a filter plate for filtering fluid is slidably arranged in the support frame, a clamping ball for fixing the filter plate is slidably arranged in the filter plate, a clamping groove matching the clamping ball is opened on the support frame, and a first elastic member is connected between the clamping ball and the filter plate.

[0009] Furthermore, a fixing frame is arranged on the fixing plate, a liquid collecting box filled with potassium permanganate solution is arranged on the fixing frame, a second glass plate is embedded on the liquid collecting box, and a No. 1 screw cap is threadedly arranged on the liquid collecting box.

[0010] Furthermore, the liquid collecting tank is in a funnel shape.

[0011] Furthermore, a liquid storage box for storing potassium permanganate solution is arranged on the fixed plate, a support frame is arranged on the liquid storage box, a blocking rod for sealing the liquid storage box is slidably arranged on the support frame, and a second elastic member for resetting the blocking rod is sleeved on the blocking rod.

[0012] Furthermore, the liquid storage box is located above the liquid collecting tank.

[0013] Furthermore, a No. 2 screw cap is threadably arranged on the liquid storage box.

[0014] Furthermore, a filter screen is provided on the liquid collecting tank.

[0015] Compared with the prior art, the utility model has the following technical effects: 1. When the fluid enters the water inlet pipe, it drives the measuring rod to rotate, so that the measuring rod indicates the current fluid pressure value in the detection disc, which is convenient for real-time understanding of the fluid pressure change, so that when the fluid pressure is too high, corresponding measures can be taken to ensure the normal operation of the device.

[0016] 2. The filter plate can filter the fluid flowing into the water inlet pipe, thereby removing impurities in the fluid and preventing the impurities from clogging the internal channel of the device.

[0017] 3. The water generated by the leakage of this device is collected by the collecting tank, and mixed with the internal potassium permanganate solution during collection, so that the inside of the collecting tank turns red, which serves as a reminder.

[0018] 4. By pulling the blocking rod outward to open the liquid storage box, the potassium permanganate solution inside the liquid storage box can flow into the liquid collecting tank, making it convenient to replenish the solution at any time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0020] Figure 2 It is a three-dimensional cross-sectional structural schematic diagram of the detection disc, the measuring rod and the first glass plate of the utility model.

[0021] Figure 3 It is a three-dimensional cross-sectional structural schematic diagram of the fixing plate, the supporting frame and the filter plate of the utility model.

[0022] Figure 4 For this utility model Figure 3 Enlarged view of point A in the middle.

[0023] Figure 5 It is a three-dimensional cross-sectional structural schematic diagram of the fixing frame, the liquid collecting box and the first screw cap of the utility model.

[0024] Figure 6 It is a three-dimensional structural schematic diagram of the fixed plate, the corrugated plate and the liquid storage box of the utility model.

[0025] Figure 7 It is a three-dimensional structural schematic diagram of the liquid storage box, the support frame and the blocking rod of the utility model.

[0026] Explanation of the reference numerals: 1: fixing plate, 2: corrugated plate, 3: screw, 4: nut, 5: water inlet pipe, 6: water outlet pipe, 7: detection disc, 8: measuring rod, 9: first glass plate, 10: supporting frame, 11: filter plate, 12: blocking ball, 13: first elastic member, 14: fixing frame, 15: liquid collecting box, 16: second glass plate, 17: No. 1 screw cap, 18: liquid storage box, 19: supporting frame, 20: blocking rod, 21: second elastic member, 22: No. 2 screw cap, 23: filter net. DETAILED DESCRIPTION

[0027] 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 of 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.

[0028] Example 1: Please refer to Figure 1 and Figure 2The brazed plate heat exchanger includes a fixing plate 1, the fixing plates 1 are two in total, the two fixing plates 1 are symmetrically distributed front and back, the two fixing plates 1 are stacked with two or more corrugated plates 2, the fixing plates 1 are threadedly provided with screws 3 at four corners, the screws 3 are threadedly provided with nuts 4, and the two fixing plates 1 can be clamped or loosened by screwing the nuts and the screws 3, the upper part of the fixing plate 1 on the front side is connected and communicated with two water inlet pipes 5 symmetrically distributed left and right, and the front side The lower part of the fixed plate 1 is connected and communicated with two water outlet pipes 6 which are symmetrically distributed on the left and right. A detection disc 7 is sleeved on the water inlet pipe 5. A circle of pressure values ​​is set in the detection disc 7. A measuring rod 8 is rotatably set on the detection disc 7. The measuring rod 8 passes through the water inlet pipe 5. The measuring rod 8 senses the fluid pressure in the water inlet pipe 5 and then rotates to indicate the pressure value, thereby realizing pressure detection. A first glass plate 9 is embedded in the detection disc 7, and the pressure value in the detection disc 7 is observed through the first glass plate 9.

[0029] When the fluid enters the device from the water inlet pipe 5, the fluid drives the measuring rod 8 to rotate. At the same time, the measuring rod 8 indicates the current fluid pressure value in the detection disc 7, which is convenient for the user to understand the fluid pressure changes in real time, so that when the fluid pressure is too high, corresponding measures can be taken to ensure the normal operation of the device.

[0030] Example 2: Based on Example 1, please refer to Figure 3 and Figure 4 The water inlet pipe 5 is connected to and communicated with a support frame 10, a filter plate 11 is slidably arranged in the support frame 10, and the fluid entering the water inlet pipe 5 is filtered through the filter plate 11, and two card balls 12 symmetrically distributed up and down are slidably arranged in the filter plate 11, and the top and bottom parts of the support frame 10 are both provided with card slots, and the size of the card slots matches the card balls 12. The filter plate 11 can be fixed by inserting the card balls 12 into the card slots, and a first elastic member 13 is connected between the card ball 12 and the filter plate 11, and the first elastic member 13 is used to drive the card ball 12 to reset.

[0031] When the fluid enters the water inlet pipe 5, the filter plate 11 filters the fluid to remove impurities in the fluid to prevent the impurities from clogging the internal channel of the device. After the filter plate 11 has been used for a period of time, the filter plate 11 is pulled outward to disengage the stuck ball 12, and the filter plate 11 can be removed from the support frame 10 for replacement.

[0032] See also Figure 1 and Figure 5The two fixed plates 1 are jointly provided with a fixing frame 14, and a liquid collecting box 15 filled with potassium permanganate solution is arranged on the fixing frame 14. The liquid collecting box 15 is in a funnel shape, which is convenient for concentratedly discharging the potassium permanganate solution inside. A filter screen 23 is arranged on the liquid collecting box 15, and the filter screen 23 is used to prevent foreign matter from entering the liquid collecting box 15. The second glass plate 16 is embedded on the front, back, left, and right sides and the left and right sides of the liquid collecting box 15. The solution in the liquid collecting box 15 can be observed through the second glass plate 16. A No. 1 screw cap 17 is threadedly arranged on the liquid collecting box 15, and the No. 1 screw cap 17 is used to seal the liquid collecting box 15.

[0033] When water leakage occurs in the device, the leaked water is collected by the liquid collecting box 15, and the potassium permanganate solution inside the liquid collecting box 15 turns red when it comes into contact with water, thereby serving as a reminder to the user.

[0034] See also Figure 6 and Figure 7 The two fixed plates 1 are jointly provided with two liquid storage boxes 18 which are symmetrically distributed on the left and right sides. The liquid storage boxes 18 are used to store potassium permanganate solution. The liquid storage boxes 18 are located above the liquid collecting tank 15 and can replenish the potassium permanganate solution to the liquid collecting tank 15. A support frame 19 is provided at the lower part of the liquid storage box 18. A blocking rod 20 is slidably provided at the lower part of the support frame 19. The blocking rod 20 is used to block the liquid storage box 18. A second elastic member 21 for resetting the blocking rod 20 is sleeved on the blocking rod 20. The two ends of the second elastic member 21 are respectively connected to the blocking rod 20 and the support frame 19. A No. 2 screw cap 22 is threadedly provided on the upper part of the liquid storage box 18. The No. 2 screw cap 22 seals the liquid storage box 18 to prevent foreign matter from entering.

[0035] After unscrewing the No. 1 screw cap 17 to discharge the red potassium permanganate solution in the liquid collecting box 15, pull the blocking rod 20 outward to open the liquid storage box 18, and the elastic member is compressed, so that the potassium permanganate solution in the liquid storage box 18 can flow into the liquid collecting box 15, so that the solution can be replenished at any time. The above description is only an embodiment of the utility model, and does not limit the patent scope of the utility model. Any equivalent structure or equivalent process transformation made by using the content of the utility model specification, or directly or indirectly used in other related technical fields, is also included in the patent protection scope of the utility model.

Claims

1. Brazed plate heat exchanger, characterized in that: The invention comprises a fixing plate (1), on which a plurality of corrugated plates (2) are stacked, a screw (3) is threadedly arranged on the fixing plate (1), a nut (4) is threadedly arranged on the screw (3), a water inlet pipe (5) and a water outlet pipe (6) are connected and communicated with the fixing plate (1), a detection disc (7) is sleeved on the water inlet pipe (5), a measuring rod (8) is rotatably arranged on the detection disc (7), the measuring rod (8) passes through the water inlet pipe (5), and a first glass plate (9) is arranged on the detection disc (7).

2. The brazed plate heat exchanger according to claim 1, characterized in that: A circle of pressure values ​​is arranged inside the detection disc (7).

3. The brazed plate heat exchanger according to claim 1, characterized in that: The water inlet pipe (5) is connected to and communicated with a support frame (10), a filter plate (11) for filtering fluid is slidably arranged in the support frame (10), a locking ball (12) for fixing the filter plate (11) is slidably arranged in the filter plate (11), a locking groove matching the locking ball (12) is formed in the support frame (10), and a first elastic member (13) is connected between the locking ball (12) and the filter plate (11).

4. The brazed plate heat exchanger according to claim 1, characterized in that: A fixing frame (14) is arranged on the fixing plate (1), a liquid collecting box (15) filled with potassium permanganate solution is arranged on the fixing frame (14), a second glass plate (16) is embedded in the liquid collecting box (15), and a No. 1 screw cap (17) is threadedly arranged on the liquid collecting box (15).

5. The brazed plate heat exchanger according to claim 4, characterized in that: The liquid collecting box (15) is in the shape of a funnel.

6. The brazed plate heat exchanger according to claim 4, characterized in that: A liquid storage box (18) for storing potassium permanganate solution is arranged on the fixed plate (1), a support frame (19) is arranged on the liquid storage box (18), a blocking rod (20) for blocking the liquid storage box (18) is slidably arranged on the support frame (19), and a second elastic member (21) for resetting the blocking rod (20) is sleeved on the blocking rod (20).

7. The brazed plate heat exchanger according to claim 6, characterized in that: The liquid storage box (18) is located above the liquid collecting tank (15).

8. The brazed plate heat exchanger according to claim 6, characterized in that: The liquid storage box (18) is provided with a second screw cap (22) in a threaded manner.

9. The brazed plate heat exchanger according to claim 4, characterized in that: The liquid collecting box (15) is provided with a filter screen (23).

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