Valve device of plate heat exchanger

Abstract

The utility model relates to the technical field of plate heat exchangers, in particular to a plate heat exchanger valve device which comprises a plate heat exchanger, a liquid inlet pipe and a liquid outlet pipe are arranged at the input end and the output end of the plate heat exchanger respectively, a water adding pipe is arranged on the liquid inlet pipe, and a mixing box is arranged at the top end of the water adding pipe. A mixing assembly is arranged in an inner cavity of the mixing box, a drainage pipe is arranged on the outer wall of the liquid outlet pipe, ball valves are arranged on the water adding pipe and the drainage pipe, and conveying pipes are connected to the liquid inlet pipe and the liquid outlet pipe through control valves. Through the arrangement of the mixing assembly, cleaning liquid raw materials added into the inner cavity of the adding pipe according to the proportion can be mixed and prepared, then the cleaning liquid can be prepared, and the problems that in the prior art, a cleaning structure of a plate heat exchanger is single in function in the actual use process, does not have the cleaning liquid preparation function, and cannot be used for cleaning the plate heat exchanger are solved. And cleaning liquid needs to be manually prepared before cleaning, so that the workload of operators is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of plate heat exchangers, in particular to a valve device for plate heat exchangers. Background Art

[0002] Plate heat exchanger is a kind of high-efficiency heat exchanger made of a series of metal sheets with a certain corrugated shape. Thin rectangular channels are formed between various plates, and heat is exchanged through the plates. Plate heat exchanger is an ideal equipment for liquid-liquid and liquid-steam heat exchange. It has the characteristics of high heat exchange efficiency, small heat loss, compact and light structure, small footprint, wide application and long service life. Under the same pressure loss, its heat transfer coefficient is 3-5 times higher than that of tubular heat exchanger, and the footprint is one-third of that of tubular heat exchanger, and the heat recovery rate can be as high as more than 90%.

[0003] However, the cleaning structure of the plate heat exchanger in the prior art has a single function in actual use and does not have the function of configuring the cleaning liquid. The cleaning liquid needs to be manually configured before cleaning, which increases the workload of the operator. To address this problem, a valve device for a plate heat exchanger is provided. Utility Model Content

[0004] The purpose of the utility model is to provide a valve device for a plate heat exchanger to solve the problems raised in the above background technology. To achieve the above purpose, the utility model provides the following technical solutions: a valve device for a plate heat exchanger, comprising a plate heat exchanger, wherein the input end and the output end of the plate heat exchanger are respectively provided with a liquid inlet pipe and a liquid outlet pipe, the liquid inlet pipe is provided with a water supply pipe, the top end of the water supply pipe is provided with a mixing box, the inner cavity of the mixing box is provided with a mixing assembly, the outer wall of the liquid outlet pipe is provided with a drain pipe, the water supply pipe and the drain pipe are both provided with ball valves, and the liquid inlet pipe and the liquid outlet pipe are both connected with a delivery pipe through a control valve.

[0005] Preferably, the mixing assembly includes a motor, a casing, a telescopic rod, a lifting plate, a rotating column, a driving assembly and paddles. The motor is arranged at the top of the mixing box, and the output end of the motor extends to the inner cavity of the mixing box. The casing is arranged at the output end of the motor, and the plurality of telescopic rods are arranged at the top of the inner cavity of the casing, the lifting plate is arranged at the bottom ends of the plurality of telescopic rods, the rotating column is arranged at the bottom end of the lifting plate, and the plurality of paddles are arranged on the outer wall of the rotating column, and the driving assembly is arranged at the top of the inner cavity of the casing and fixedly connected to the top of the lifting plate.

[0006] Preferably, each of the blades is provided with a shear hole therethrough.

[0007] Preferably, the driving assembly includes a motor, a rotating column, a roller, a slide groove, a guide rod, a slide plate, a slider, a fixed seat and a connecting rod, the motor is arranged on the right side of the inner cavity of the casing, one end of the rotating column is rotatably connected to the left side of the inner cavity of the casing through a bearing, the other end of the rotating column is fixedly connected to the output end of the motor, the two rollers are respectively fixedly sleeved on the left and right sides of the outer wall of the rotating column, the two slide grooves are respectively opened on the outer walls of the two rollers, the two guide rods are both arranged in the inner cavity of the casing, the two slide plates are respectively slidably sleeved on the left and right sides of the outer walls of the two guide rods, the two sliders are respectively slidably embedded in the inner cavity of the two slide grooves, the other ends of the two sliders are respectively fixedly connected to the top ends of the two slide plates, the fixed seat is arranged in the middle of the top end of the lifting plate, one end of the two connecting rods is respectively hinged on the left and right sides of the top end of the fixing seat, and the other ends of the two connecting rods are respectively hinged on the bottom ends of the two slide plates.

[0008] Preferably, the two slide grooves are both spiral-shaped and connected end to end.

[0009] Preferably, the two slide grooves are arranged in opposite spiral directions.

[0010] Preferably, a adding pipe is provided at the top of the mixing box for adding cleaning liquid to configure raw materials.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] 1. Through the setting of the mixing component, the cleaning liquid raw materials added to the inner cavity of the adding tube in proportion can be mixed and configured, thereby realizing the configuration of the cleaning liquid, which solves the problem that the cleaning structure of the plate heat exchanger in the prior art has a single function in actual use and does not have the configuration function of the cleaning liquid. The cleaning liquid needs to be manually configured before cleaning, which increases the workload of the operator;

[0013] 2. The plate heat exchanger can be cleaned by passing the cleaning liquid from the water supply pipe into the plate heat exchanger and discharging it through the drain pipe on the liquid outlet pipe. The operation is simple and easy to use, and the plate heat exchanger can be prevented from being disassembled when cleaning. The control valves arranged on the liquid inlet pipe and the liquid outlet pipe can prevent the cleaning liquid from entering the delivery pipe instead of being discharged from the drain pipe when cleaning the plate heat exchanger, thereby improving the stability of the device when in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0015] Figure 2 This is a front cross-sectional view of the mixing box of the utility model;

[0016] Figure 3This is a front cross-sectional view of the housing of the utility model;

[0017] Figure 4 It is a structural schematic diagram of the guide rod of the utility model;

[0018] Figure 5 For this utility model Figure 3 Enlarged view of point A.

[0019] In the figure: 1. Plate heat exchanger; 2. Liquid inlet pipe; 3. Liquid outlet pipe; 4. Delivery pipe; 5. Drain pipe; 6. Water adding pipe; 7. Mixing box; 8. Adding pipe; 9. Motor; 10. Casing; 11. Telescopic rod; 12. Lifting plate; 13. Rotating column; 14. Paddle; 15. Shear hole; 16. Motor; 17. Rotating column; 18. Roller; 19. Slide; 20. Guide rod; 21. Slide plate; 22. Sliding block; 23. Fixed seat; 24. Connecting rod. DETAILED DESCRIPTION

[0020] 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 technical personnel in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figures 1 to 5 The utility model provides a technical solution: a valve device for plate heat exchange, including a plate heat exchanger 1, wherein the input end and the output end of the plate heat exchanger 1 are respectively provided with a liquid inlet pipe 2 and a liquid outlet pipe 3, the liquid inlet pipe 2 is provided with a water adding pipe 6, the top of the water adding pipe 6 is provided with a mixing box 7, the inner cavity of the mixing box 7 is provided with a mixing component, the outer wall of the liquid outlet pipe 3 is provided with a drain pipe 5, the water adding pipe 6 and the drain pipe 5 are both provided with a ball valve, the liquid inlet pipe 2 and the liquid outlet pipe 3 are both connected with a delivery pipe 4 through a control valve, and through the setting of the mixing component, the cleaning liquid raw materials added to the inner cavity of the adding pipe 8 in proportion can be mixed and configured, thereby realizing the configuration of the cleaning liquid, which solves the problem of the plate heat exchanger in the prior art. The cleaning structure of the heat exchanger 1 has a single function during actual use and does not have the function of configuring the cleaning liquid. The cleaning liquid needs to be manually configured before cleaning, which increases the workload of the operator. The plate heat exchanger 1 can be cleaned by passing the cleaning liquid from the water supply pipe 6 into the plate heat exchanger 1 and discharging it through the drain pipe 5 on the liquid outlet pipe 3. The operation is simple and easy to use, and the situation of disassembling and assembling the plate heat exchanger 1 when cleaning the plate heat exchanger 1 is avoided. The control valves arranged on the liquid inlet pipe 2 and the liquid outlet pipe 3 can prevent the cleaning liquid from entering the delivery pipe 4 instead of being discharged from the drain pipe 5 when cleaning the plate heat exchanger 1, thereby improving the stability of the device during use.

[0022] In this embodiment, the mixing component includes a motor 9, a casing 10, a telescopic rod 11, a lifting plate 12, a rotating column 1713, a driving component and a paddle 14. The motor 9 is arranged at the top of the mixing box 7, and the output end of the motor 9 extends to the inner cavity of the mixing box 7. The casing 10 is arranged at the output end of the motor 9. Multiple telescopic rods 11 are arranged at the top of the inner cavity of the casing 10, the lifting plate 12 is arranged at the bottom of multiple telescopic rods 11, the rotating column 1713 is arranged at the bottom end of the lifting plate 12, and multiple paddles 14 are arranged on the outer wall of the rotating column 1713. The driving component is arranged at the top of the inner cavity of the casing 10 and is fixedly connected to the top of the lifting plate 12. Start the motor 9, so that the motor 9 drives the casing 10, the telescopic rod 11, the lifting plate 12, the rotating column 1713 and the paddle 14 to rotate, thereby realizing the configuration of the cleaning liquid. Through the setting of the telescopic rod 11, the lifting plate 12 can always slide up and down along a straight line, thereby improving the stability of the device during use.

[0023] In this embodiment, each blade 14 is provided with a shear hole 15 , which can increase the mixing speed of the blade 14 .

[0024] In this embodiment, the driving assembly includes a motor 16, a rotating column 1713, a roller 18, a slide 19, a guide rod 20, a slide plate 21, a slider 22, a fixed seat 23 and a connecting rod 24. The motor 16 is arranged on the right side of the inner cavity of the casing 10, one end of the rotating column 1713 is rotatably connected to the left side of the inner cavity of the casing 10 through a bearing, and the other end of the rotating column 1713 is fixedly connected to the output end of the motor 16. The two rollers 18 are respectively fixedly sleeved on the left and right sides of the outer wall of the rotating column 1713, the two slide grooves 19 are respectively opened on the outer walls of the two rollers 18, the two guide rods 20 are both arranged in the inner cavity of the casing 10, the two slide plates 21 are respectively slidably sleeved on the left and right sides of the outer walls of the two guide rods 20, the two sliders 22 are respectively slidably embedded in the inner cavities of the two slide grooves 19, and the other ends of the two sliders 22 are respectively connected to the two The top of the slide plate 21 is fixedly connected, the fixed seat 23 is arranged in the middle of the top of the lifting plate 12, one end of the two connecting rods 24 is hinged on the left and right sides of the top of the fixed seat 23, and the other ends of the two connecting rods 24 are hinged on the bottom ends of the two slide plates 21. The motor 16 is started to drive the two slide grooves 19 to rotate through the rotating column 1713 and the two rollers 18. Since the two slide grooves 19 are spiral and connected end to end, the spiral directions of the two slide grooves 19 are relatively arranged. Therefore, the two sliders 22 can drive the two slide plates 21 to slide back and forth relative to each other in the horizontal direction under the limiting action of the two guide rods 20, so that the two connecting rods 24 repeatedly and quickly pull and push the fixed seat 23, the lifting plate 12, the rotating column 1713 and the paddle 14 to slide up and down, thereby expanding the stirring range and shortening the stirring time.

[0025] In this embodiment, the two slide grooves 19 are both spiral and connected end to end, so that the slider 22 can drive the slide plate 21 to slide back and forth left and right along the horizontal direction under the limiting action of the two guide rods 20.

[0026] In this embodiment, the two slide grooves 19 are arranged in opposite spiral directions, so that the two sliders 22 can slide relative to each other at the same time.

[0027] In this embodiment, a adding pipe 8 is provided at the top of the mixing box 7 for adding cleaning liquid to configure raw materials.

[0028] The use method and advantages of the utility model: When in use, the working process is as follows:

[0029] The cleaning liquid is introduced into the plate heat exchanger 1 from the water supply pipe 6 and discharged through the drain pipe 5 on the liquid outlet pipe 3, so that the plate heat exchanger 1 can be cleaned. The operation is simple and convenient to use, and the plate heat exchanger 1 can be prevented from being disassembled and assembled when cleaning. The control valves arranged on the liquid inlet pipe 2 and the liquid outlet pipe 3 can prevent the cleaning liquid from entering the delivery pipe 4 instead of being discharged from the drain pipe 5 when cleaning the plate heat exchanger 1, thereby improving the stability of the device when in use. The ball valves arranged on the water supply pipe 6 and the drain pipe 5 can conveniently control the opening and closing of the water supply pipe 6 and the drain pipe 5, and start the motor 9, so that the motor 9 drives the housing 10, the telescopic rod 11, the lifting plate 12, and the rotating column 17. 13 and the paddle 14 rotate, thereby realizing the configuration of the cleaning liquid. By setting the shear hole 15, the mixing speed of the cleaning liquid raw materials can be accelerated, and the motor 16 is started to drive the two slides 19 to rotate through the rotating column 1713 and the two rollers 18. Since the two slides 19 are spiral and connected end to end, the spiral directions of the two slides 19 are relatively set. Therefore, the two sliders 22 can drive the two slide plates 21 to slide back and forth relative to each other in the horizontal direction under the limiting action of the two guide rods 20, so that the two connecting rods 24 can repeatedly and quickly pull and push the fixed seat 23, the lifting plate 12, the rotating column 1713 and the paddle 14 to slide up and down, thereby expanding the stirring range and shortening the stirring time.

[0030] The above shows and describes the basic principle, main features and advantages of the utility model. Technical staff in this industry should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A valve device for plate heat exchange, comprising a plate heat exchanger (1), characterized in that: The input end and output end of the plate heat exchanger (1) are respectively provided with a liquid inlet pipe (2) and a liquid outlet pipe (3); the liquid inlet pipe (2) is provided with a water supply pipe (6); the top end of the water supply pipe (6) is provided with a mixing box (7); the inner cavity of the mixing box (7) is provided with a mixing component; the outer wall of the liquid outlet pipe (3) is provided with a drain pipe (5); the water supply pipe (6) and the drain pipe (5) are both provided with ball valves; the liquid inlet pipe (2) and the liquid outlet pipe (3) are both connected to a delivery pipe (4) via a control valve.

2. A plate-change valve device according to claim 1, characterized in that: The mixing assembly comprises a motor (9), a casing (10), a telescopic rod (11), a lifting plate (12), a rotating column (17) (13), a driving assembly and a paddle (14); the motor (9) is arranged at the top end of a mixing box (7); the output end of the motor (9) extends to the inner cavity of the mixing box (7); the casing (10) is arranged at the output end of the motor (9); a plurality of telescopic rods (11) are arranged at the top end of the inner cavity of the casing (10); the lifting plate (12) is arranged at the bottom ends of the plurality of telescopic rods (11); the rotating column (17) (13) is arranged at the bottom end of the lifting plate (12); a plurality of paddles (14) are arranged on the outer wall of the rotating column (17) (13); and the driving assembly is arranged at the top end of the inner cavity of the casing (10) and is fixedly connected to the top end of the lifting plate (12).

3. A plate-change valve device according to claim 2, characterized in that: Each of the blades (14) is provided with a shearing hole (15).

4. A plate-change valve device according to claim 2, characterized in that: The driving assembly comprises a motor (16), a rotating column (17) (13), a roller (18), a slide groove (19), a guide rod (20), a slide plate (21), a slider (22), a fixed seat (23) and a connecting rod (24); the motor (16) is arranged on the right side of the inner cavity of the casing (10); one end of the rotating column (17) (13) is rotatably connected to the left side of the inner cavity of the casing (10) through a bearing; the other end of the rotating column (17) (13) is fixedly connected to the output end of the motor (16); the two rollers (18) are respectively fixedly sleeved on the left and right sides of the outer wall of the rotating column (17) (13); the two slide grooves (19) are respectively opened at The outer walls of the two rollers (18), the two guide rods (20) are both arranged in the inner cavity of the casing (10), the two slide plates (21) are slidably sleeved on the left and right sides of the outer walls of the two guide rods (20), the two sliders (22) are slidably embedded in the inner cavities of the two slide grooves (19), the other ends of the two sliders (22) are respectively fixedly connected to the top ends of the two slide plates (21), the fixing seat (23) is arranged in the middle of the top end of the lifting plate (12), one ends of the two connecting rods (24) are respectively hinged on the left and right sides of the top end of the fixing seat (23), and the other ends of the two connecting rods (24) are respectively hinged on the bottom ends of the two slide plates (21).

5. A plate-change valve device according to claim 4, characterized in that: The two slide grooves (19) are both spiral-shaped and connected end to end.

6. A plate-change valve device according to claim 4, characterized in that: The two slide grooves (19) are arranged in opposite spiral directions.

7. A plate-change valve device according to claim 1, characterized in that: The top of the mixing box (7) is provided with an adding pipe (8) for adding cleaning liquid to configure raw materials.

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