Machine seal water recycling device of PVC production device

Abstract

The utility model discloses a machine seal water recycling device of PVC production device relates to PVC production technical field. Including: the water storage tank, the top of water storage tank is fixedly connected with the adjusting motor through the frame, the outer wall fixed connection of water storage tank has the heat exchange device, the inside of water storage tank is provided with adjusting device, the utility model discloses setting will outside machine seal water through the corrugated pipe, hollow screw rod and the adjusting pipe introduction water storage tank, and combine cooling pipe and fin plate close connection, cooperate the forced convection heat exchange of fan, and the heat dissipation efficiency is greatly promoted, and the machine seal water temperature is reduced fast, and the machine seal system works under the suitable temperature, realizes the filtration, cooling and recycling of machine seal water, significantly reduces the water resource waste in the PVC production process, reduces production cost, and fits the industrial water saving and sustainable development demand.

Description

Technical Field

[0001] This utility model relates to the field of PVC production technology, specifically to a mechanical seal water recycling device for a PVC production apparatus. Background Technology

[0002] In the PVC production process, the mechanical sealing system of the equipment needs a continuous water supply to maintain sealing performance, prevent media leakage, and reduce the heat generated by equipment friction. However, the traditional mechanical sealing water usage mode of PVC production equipment has many drawbacks: on the one hand, mechanical sealing water is usually discharged directly after single use, resulting in a large waste of water resources; on the other hand, mechanical sealing water absorbs the heat generated by the operation of the equipment during use. If the water temperature rises and is directly recycled, it is easy to cause aging of the seals, a decrease in sealing performance, and even equipment failure, affecting production safety and stability.

[0003] Therefore, there is an urgent need for a device that can efficiently recover and cool mechanically sealed water, automatically regulate water level, and separate impurities, in order to meet the requirements of water resource recycling and stable equipment operation in the PVC production process. Utility Model Content

[0004] To address the shortcomings of existing technologies, the technical solution adopted by this utility model is as follows: a machine seal water recycling device for a PVC production unit, comprising: a water storage tank, an adjusting motor fixedly connected to the top of the water storage tank via a frame, a heat exchange device fixedly connected to the outer wall of the water storage tank, and an adjusting device installed inside the water storage tank; the heat exchange device includes a fixed frame, a cooling pipe fixedly connected to the outer wall of the fixed frame, an mounting frame fixedly connected to the outer wall of the fixed frame, a finned plate fixedly connected to the inner wall of the mounting frame, and a fan fixedly connected to the outer wall of the mounting frame.

[0005] Preferably, the outer wall of the fixing frame is fixedly connected to the outer wall of the water storage tank, and the outer wall of the finned plate is fixedly connected to the outer wall of the cooling pipe.

[0006] Preferably, a filter cartridge is fixedly connected to the inner wall of the water storage tank, a conveying pipe is fixedly connected to the bottom end of the filter cartridge, a conveying pump is fixedly connected to the outer wall of the conveying pipe, and a pulley assembly is provided at the output end of the regulating motor.

[0007] Preferably, the outer wall of the delivery pipe is fixedly connected to the inner wall of the water storage tank, the outer wall of the delivery pump is fixedly connected to the outer wall of the water storage tank, and the top end of the delivery pipe is fixedly connected to the bottom end of the cooling pipe. Driven by the delivery pump, the water enters the cooling pipe through the delivery pipe. The outer wall of the cooling pipe contacts the finned plate, increasing the heat dissipation area. After the fan starts, forced air flows through the finned plate, and the heat of the water in the cooling pipe is removed through convection heat exchange, thus reducing the water temperature.

[0008] Preferably, the adjusting device includes a sleeve, with a hollow screw threadedly connected to the inner wall of the sleeve. A bellows is rotatably connected to the top end of the hollow screw, and a drive ring is rotatably connected to the top end of the sleeve. An adjusting tube is rotatably connected to the bottom end of the hollow screw, and a limit rod is slidably connected to the inner wall of the adjusting tube. Through the engagement of a groove on the inner wall of the drive ring with the outer surface of the hollow screw, rotation causes the hollow screw to move up and down along the sleeve. The top end of the hollow screw is connected to an external connecting pipe via the bellows, and the bottom end is connected to the adjusting tube. The limit rod restricts the radial movement of the adjusting tube, ensuring vertical lifting and lowering, thereby adjusting the height of the adjusting tube according to the water level.

[0009] Preferably, the outer wall of the sleeve is fixedly connected to the inner wall of the water storage tank, the inner wall of the drive ring is slidably connected to the outer wall of the hollow screw, the outer wall of the drive ring is driven by the pulley assembly, and the outer wall of the limiting rod is fixedly connected to the inner wall of the water storage tank. As the mechanical seal water level in the water storage tank increases, the float moves with the water level, causing the block to move in the regulating pipe, closing the regulating pipe and preventing external mechanical seal water from entering. When the water level drops, the float moves the block, allowing the mechanical seal water to flow through the regulating pipe again, thereby controlling the opening and closing of the regulating pipe and ensuring a constant liquid level in the water storage tank.

[0010] Preferably, a block is slidably connected to the inner wall of the regulating tube, and a float is rotatably connected to the outer wall of the block.

[0011] The beneficial effects of this utility model are as follows:

[0012] 1. This utility model introduces external mechanical seal water into a water storage tank through a corrugated pipe, hollow screw, and regulating pipe, and combines it with a cooling pipe and finned plate for tight connection. With the help of a fan for forced convection heat exchange, the heat dissipation efficiency is greatly improved, the temperature of the mechanical seal water is quickly reduced, and the mechanical seal system is ensured to work at a suitable temperature. This realizes the filtration, cooling and reuse of mechanical seal water, significantly reduces water waste in the PVC production process, reduces production costs, and meets the needs of industrial water conservation and sustainable development.

[0013] 2. This utility model, by setting up an adjustment device and utilizing the linkage mechanism of the float and the block, realizes the automatic opening and closing of the adjustment pipe, ensuring a constant liquid level in the water tank and preventing overflow due to excessively high water level or operation of the mechanical seal system due to excessively low water level; at the same time, the adjustment motor drives the drive ring and the hollow screw through the pulley set, which can flexibly adjust the height of the adjustment pipe to adapt to the water level requirements under different working conditions, thereby improving the adaptability and stability of the device. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the internal structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the heat exchange device of this utility model;

[0017] Figure 4 This is a schematic diagram of the structure of the adjusting device of this utility model;

[0018] Figure 5 This is a schematic diagram of the internal structure of the regulating device of this utility model.

[0019] In the diagram: 1. Water tank; 2. Regulating motor; 3. Heat exchanger; 31. Cooling pipe; 32. Finned plate; 33. Fan; 34. Fixing frame; 35. Mounting frame; 4. Regulating device; 41. Corrugated pipe; 42. Hollow screw; 43. Drive ring; 44. Regulating pipe; 45. Limiting rod; 46. Sleeve; 47. Block; 48. Float; 5. Pulley assembly; 6. Filter cartridge; 7. Conveying pipe; 8. Conveying pump. Detailed Implementation

[0020] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to better illustrate the principles and practical applications of the present invention, and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for a particular purpose.

[0021] Example:

[0022] Please see Figure 1 - Figure 5 This utility model provides a technical solution: a machine seal water recycling device for a PVC production unit, comprising: a water storage tank 1, an adjusting motor 2 fixedly connected to the top of the water storage tank 1 via a frame, a heat exchange device 3 fixedly connected to the outer wall of the water storage tank 1, and an adjusting device 4 provided inside the water storage tank 1; the heat exchange device 3 includes a fixing frame 34, a cooling pipe 31 fixedly connected to the outer wall of the fixing frame 34, an mounting frame 35 fixedly connected to the outer wall of the fixing frame 34, a finned plate 32 fixedly connected to the inner wall of the mounting frame 35, and a fan 33 fixedly connected to the outer wall of the mounting frame 35.

[0023] The outer wall of the fixed frame 34 is fixedly connected to the outer wall of the water storage tank 1, and the outer wall of the fin plate 32 is fixedly connected to the outer wall of the cooling pipe 31.

[0024] A filter cartridge 6 is fixedly connected to the inner wall of the water storage tank 1. A conveying pipe 7 is fixedly connected to the bottom end of the filter cartridge 6. A conveying pump 8 is fixedly connected to the outer wall of the conveying pipe 7. A pulley set 5 is provided at the output end of the regulating motor 2.

[0025] The outer wall of the delivery pipe 7 is fixedly connected to the inner wall of the water storage tank 1, the outer wall of the delivery pump 8 is fixedly connected to the outer wall of the water storage tank 1, and the top end of the delivery pipe 7 is fixedly connected to the bottom end of the cooling pipe 31.

[0026] The adjusting device 4 includes a sleeve 46, a hollow screw 42 is threadedly connected to the inner wall of the sleeve 46, a bellows 41 is rotatably connected to the top end of the hollow screw 42, a drive ring 43 is rotatably connected to the top end of the sleeve 46, an adjusting tube 44 is rotatably connected to the bottom end of the hollow screw 42, and a limit rod 45 is slidably connected to the inner wall of the adjusting tube 44.

[0027] The outer wall of the sleeve 46 is fixedly connected to the inner wall of the water storage tank 1, the inner wall of the drive ring 43 is slidably connected to the outer wall of the hollow screw 42, the outer wall of the drive ring 43 is connected to the pulley group 5 for transmission, and the outer wall of the limit rod 45 is fixedly connected to the inner wall of the water storage tank 1.

[0028] A block 47 is slidably connected to the inner wall of the regulating pipe 44, and a float 48 is rotatably connected to the outer wall of the block 47.

[0029] Working principle:

[0030] During use, the external mechanical seal water delivery channel is connected to the corrugated pipe 41, and the mechanical seal water is delivered to the hollow screw 42 through the corrugated pipe 41. Finally, it is delivered to the water storage tank 1 for storage through the regulating pipe 44. After being filtered by the filter cartridge 6, the mechanical seal water is driven by the delivery pump 8 to enter the cooling pipe 31 through the delivery pipe 7. The outer wall of the cooling pipe 31 contacts the finned plate 32 to increase the heat dissipation area. After the fan 33 is started, the forced air flows through the finned plate 32 and the heat of the water in the cooling pipe 31 is removed by the convection heat exchanger, thereby reducing the water temperature. The cooled water is connected to the external pipe from the top of the cooling pipe 31 to supply the cooled mechanical seal water to the mechanical seal system. Impurities isolated after a long time can be discharged by opening the valve at the bottom of the water storage tank 1.

[0031] As the mechanical seal water level in the water tank 1 increases, the float 48 moves with the water level, causing the block 47 to move in the regulating pipe 44, thus closing the regulating pipe 44 and preventing external mechanical seal water from entering. When the water level drops, the float 48 moves the block 47, allowing the mechanical seal water to flow through the regulating pipe 44 again, thereby controlling the opening and closing of the regulating pipe 44 to ensure a constant liquid level in the water tank 1. The regulating motor 2 drives the drive ring 43 to rotate through the pulley set 5. The drive ring 43's inner wall engages with the groove on the outside of the hollow screw 42. When rotating, the hollow screw 42 moves up and down along the sleeve 46. The top of the hollow screw 42 is connected to the external connecting pipe through the corrugated pipe 41, and the bottom is connected to the regulating pipe 44. The limiting rod 45 restricts the radial movement of the regulating pipe 44 to ensure vertical lifting and lowering, thereby adjusting the height of the regulating pipe 44 according to the water level.

[0032] Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art and related fields based on the embodiments of this utility model without creative effort should fall within the protection scope of this utility model. Structures, devices, and operating methods not specifically described and explained in this utility model, unless otherwise specified or limited, shall be implemented according to conventional means in the art.

Claims

1. A mechanical seal water recycling device for a PVC production unit, comprising: A water storage tank (1) is provided with an adjustable motor (2) fixedly connected to the top of the water storage tank (1) via a frame. The water storage tank (1) is characterized in that a heat exchange device (3) is fixedly connected to the outer wall of the water storage tank (1), and an adjustable device (4) is provided inside the water storage tank (1). The heat exchange device (3) includes a fixed frame (34), a cooling pipe (31) is fixedly connected to the outer wall of the fixed frame (34), an mounting frame (35) is fixedly connected to the outer wall of the fixed frame (34), a finned plate (32) is fixedly connected to the inner wall of the mounting frame (35), and a fan (33) is fixedly connected to the outer wall of the mounting frame (35).

2. The mechanical seal water recycling device for a PVC production apparatus according to claim 1, characterized in that: The outer wall of the fixed frame (34) is fixedly connected to the outer wall of the water storage tank (1), and the outer wall of the fin plate (32) is fixedly connected to the outer wall of the cooling pipe (31).

3. The mechanical seal water recycling device for a PVC production apparatus according to claim 1, characterized in that: A filter cylinder (6) is fixedly connected to the inner wall of the water storage tank (1), a conveying pipe (7) is fixedly connected to the bottom end of the filter cylinder (6), a conveying pump (8) is fixedly connected to the outer wall of the conveying pipe (7), and a pulley group (5) is provided at the output end of the regulating motor (2).

4. The mechanical seal water recycling device for a PVC production apparatus according to claim 3, characterized in that: The outer wall of the delivery pipe (7) is fixedly connected to the inner wall of the water storage tank (1), the outer wall of the delivery pump (8) is fixedly connected to the outer wall of the water storage tank (1), and the top end of the delivery pipe (7) is fixedly connected to the bottom end of the cooling pipe (31).

5. The mechanical seal water recycling device for a PVC production apparatus according to claim 1, characterized in that: The adjusting device (4) includes a sleeve (46), a hollow screw (42) is threadedly connected to the inner wall of the sleeve (46), a bellows (41) is rotatably connected to the top end of the hollow screw (42), a drive ring (43) is rotatably connected to the top end of the sleeve (46), an adjusting tube (44) is rotatably connected to the bottom end of the hollow screw (42), and a limit rod (45) is slidably connected to the inner wall of the adjusting tube (44).

6. The mechanical seal water recycling device for a PVC production apparatus according to claim 5, characterized in that: The outer wall of the sleeve (46) is fixedly connected to the inner wall of the water tank (1), the inner wall of the drive ring (43) is slidably connected to the outer wall of the hollow screw (42), the outer wall of the drive ring (43) is connected to the pulley group (5) for transmission, and the outer wall of the limiting rod (45) is fixedly connected to the inner wall of the water tank (1).

7. The mechanical seal water recycling device for a PVC production apparatus according to claim 6, characterized in that: The inner wall of the regulating tube (44) is slidably connected to a block (47), and the outer wall of the block (47) is rotatably connected to a float (48).

Images