Cooling device for reducing mechanical seal circulating water

Abstract

A cooling device for reducing mechanical seal circulating water comprises a heat dissipation box and a control cabinet, the lower portion of the heat dissipation box is connected with a water inlet of an autoclave mechanical seal through a cold water pipeline provided with a first water pump, and the first water pump is electrically connected with the control cabinet; a water outlet of the autoclave machine seal extends to a spray header at the upper end in the heat dissipation box through a pipeline; a heat dissipation device is arranged in the heat dissipation box, the heat dissipation device is located below the spraying head, a ventilation opening is formed in the portion, below the heat dissipation device, of the side wall of the heat dissipation box, and a water tank is arranged at the lower end of the heat dissipation box and used for storing circulating water; the heat dissipation device is provided with a plurality of heat dissipation fins and water leakage holes, and the heat dissipation area of the heat dissipation device is larger than the area of the cross section of the heat dissipation box in the horizontal direction. By means of the device, the temperature of circulating water can be stably controlled to be about 30 DEG C, a mechanical seal inner rubber ring of the autoclave can be well cooled, and regular water changing in a traditional mode is not needed.

Description

Technical Field

[0001] This utility model belongs to the field of circulating water cooling technology, and mainly relates to a cooling device for reducing the circulating water of mechanical seals. Background Technology

[0002] The mechanical seal of the pressure cooker is equipped with a rubber ring. However, the heat resistance of the rubber ring has certain limitations, so effective cooling measures are required to ensure its performance. If the cooling effect is not ideal, it will directly lead to damage to the quality of the rubber ring, which will seriously affect the sealing performance of the mechanical seal, and this damage is often irreversible.

[0003] Previously, the workshop used a cooling method of periodically changing the water (using a pump for circulating cooling). However, under this method, the temperature of the cooling water mostly remained around 50°C. This temperature failed to meet the ideal cooling standard, making it difficult to fully ensure the performance stability and service life of the rubber rings.

[0004] In view of the above situation, in order to effectively enhance the protection of the rubber ring inside the mechanical seal and extend its service life, the workshop has focused on developing a brand-new cooling system, which has successfully stabilized the temperature of the circulating water at around 30°C, significantly optimizing the cooling effect on the rubber ring. Utility Model Content

[0005] To overcome the above-mentioned shortcomings, this utility model provides a cooling device for reducing the circulating water of mechanical seals.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows:

[0007] A cooling device for reducing circulating water in a mechanical seal includes a heat sink and a control cabinet. The lower part of the heat sink is connected to the inlet of the mechanical seal in a pressure cooker via a cold water pipe equipped with a first water pump. The first water pump is electrically connected to the control cabinet. The outlet of the mechanical seal in the pressure cooker is extended through a pipe to a spray head at the upper part of the heat sink.

[0008] The heat dissipation box is equipped with a heat dissipation device located below the spray head. An air exchange port is provided on the side wall of the heat dissipation box below the heat dissipation device. A water tank is provided at the lower end of the heat dissipation box for storing circulating water.

[0009] The heat dissipation device is provided with several heat dissipation fins and drainage holes, and the heat dissipation area of ​​the heat dissipation device is larger than the area of ​​the horizontal cross-section of the heat dissipation box.

[0010] The heat dissipation device includes a flat part and a beveled part. The beveled part is provided with a number of heat dissipation fins at intervals, and the beveled part between the heat dissipation fins is provided with a number of drainage holes.

[0011] The heat dissipation device has a trapezoidal cross-section.

[0012] The heat dissipation device is in the shape of a boss.

[0013] The diameter of the drain hole is proportional to the distance between the drain hole and the perpendicular line of the plane of the heat dissipation device, and the distance d between two adjacent heat dissipation fins is proportional to the diameter of the drain hole between the heat dissipation fins.

[0014] It also includes an air-cooling device, which is located on the top of the heat sink and electrically connected to the control cabinet. The air-cooling device can blow cold air from the outside into the heat sink.

[0015] It also includes a water replenishment device, which includes a water storage tank and a liquid level sensor. One end of the water storage tank is connected to a water replenishment pipe, and the other end of the water replenishment pipe extends into the heat dissipation box and is placed at the top of the heat dissipation device. A second water pump is provided on the water replenishment pipe, and the second water pump is electrically connected to the control cabinet.

[0016] The liquid level sensor is electrically connected to the control cabinet and includes an upper liquid level sensor and a lower liquid level sensor, which are located at the lower and upper ends of the water tank, respectively.

[0017] Due to the adoption of the technical solution described above, this utility model has the following advantages:

[0018] This utility model provides a cooling device for reducing the temperature of circulating water in a mechanical seal. The circulating water passes through a heat dissipation tank, where the high-temperature water is cooled to about 30 degrees Celsius. The heat dissipation device inside the heat dissipation tank has a raised or trapezoidal structure, which greatly increases the heat dissipation area. At the same time, the fan on the top of the heat dissipation tank cools the circulating water and the heat dissipation device, further increasing the heat dissipation efficiency of the circulating water. The water replenishment device can automatically replenish water in the heat dissipation tank when the cooling water is insufficient, ensuring that the circulating water volume is not too low, and can also appropriately reduce the temperature of the circulating water. This device can effectively cool the rubber ring inside the mechanical seal of the pressure cooker, eliminating the need for regular water changes using traditional methods. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the mechanism of this utility model;

[0020] Figure 2 is a cross-sectional schematic diagram of the first embodiment of the heat dissipation device;

[0021] Figure 3 This is a top view of the first embodiment of the heat dissipation device;

[0022] Figure 4 This is a top view of the second embodiment of the heat dissipation device. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0024] Combined with appendix Figure 1 The cooling device shown reduces the circulating water temperature of a mechanical seal. The lower part of the heat sink 1 is connected to the water inlet of the mechanical seal in the pressure cooker via a cold water pipe equipped with a first water pump 11. The first water pump 11 is electrically connected to and controlled by the control cabinet 6. Its function is to provide power for the circulating water, ensuring that the cooled water can be stably and efficiently delivered to the mechanical seal in the pressure cooker, providing a continuous supply of low-temperature water to the mechanical seal and ensuring its normal operation.

[0025] The control cabinet 6 contains a PLC system or a microcontroller system, which can receive signals from various sensors and make judgments based on the signals transmitted by the sensors to control the switching on and off of the water pump or fan.

[0026] The outlet of the pressure cooker is connected to a spray head at the upper part of the heat dissipation tank 1 via a pipeline, allowing hot water to be sprayed evenly onto the heat dissipation device 3. This design allows the hot water to contact the heat dissipation device 3 more evenly, improving heat dissipation efficiency. The spray head can be positioned as far away from the heat dissipation device 3 as possible, allowing the sprayed water to fall for a longer period, enabling it to fully exchange heat with the air and achieving a better cooling effect on the circulating water.

[0027] The heat dissipation device 3 is located inside the heat dissipation box 1. The heat dissipation area of ​​the heat dissipation device 3 is larger than the area of ​​the horizontal cross-section of the heat dissipation box. This ensures that there is enough area to exchange heat with the hot water, fully absorb the heat in the hot water, and ensure the heat dissipation effect.

[0028] Preferably, the heat dissipation device 3 includes a flat portion 32 and an inclined portion, which increases the heat dissipation area of ​​the heat dissipation device 3 and is more conducive to the heat dissipation of circulating water. The flat portion is located directly below the spray head. The spray head can choose to spray the circulating water to all sides or directly onto the flat portion 32. If it falls directly onto the flat portion 32, the flat portion 32 can splash the water to the sides or all sides, so that the circulating water flows evenly to the inclined portion. A plurality of heat dissipation fins 31 are arranged at intervals on the inclined portion of the heat dissipation device 3, and a plurality of drainage holes 33 are provided on the inclined portion between the heat dissipation fins 31. The function of the heat dissipation fins 31 is to increase the heat dissipation area and accelerate heat dissipation.

[0029] like Figure 2-4As shown, the cross-section of the heat dissipation device 3 can be trapezoidal or boss-shaped. This shape design increases the contact area with hot water, thereby improving heat dissipation efficiency. In the trapezoidal or boss-shaped heat dissipation device 3, the diameter of the drain hole 33 is proportional to the distance between the drain hole 33 and the perpendicular line from the flat surface 32 of the heat dissipation device 3, such as... Figure 2 and 4 As shown, the vertical distance from point A to the plane 32 is less than the vertical distance from point B to the plane 32. Therefore, the diameter of the drain hole 33 at point A is smaller than the diameter of the drain hole 33 at point B. This means that the larger the diameter of the drain hole 33, the farther it is from the horizontal plane of the plane 32. The larger the diameter, the longer and smoother the water flow. Since the diameter of the drain hole 33 closer to the horizontal plane is smaller, the amount of water passing through the drain hole 33 is also smaller. As a result, the circulating water will continue to flow to the drain hole 33 farther away from the plane 32, making the travel distance of the circulating water longer and further increasing the heat dissipation time of the circulating water. The drain hole 33 farther away from the plane 32 is set to be larger because the circulating water travels a longer distance, which can basically meet the heat dissipation requirements. Therefore, the circulating water can fall into the water tank below as quickly as possible through the larger drain hole 33.

[0030] like Figure 2 and 4 As shown, the distance d between two adjacent heat sinks 31 is proportional to the diameter of the drainage hole 33 between the heat sinks 31. This proportional design allows for more uniform flow and heat dissipation of hot water in the heat dissipation device, avoiding localized overheating or undercooling.

[0031] The heat exchange port 4 is provided on the side wall of the heat exchange box 1 below the heat dissipation device 3. Its function is to promote air circulation, so that cold air can be replenished in time or hot air in the heat exchange box 1 can be expelled in time, so as to remove the heat dissipation device 3 and the heat dissipation of circulating water and improve the overall heat dissipation efficiency.

[0032] To further enhance heat dissipation, an air-cooling device 2 is also installed. The air-cooling device 2 is located at the top of the heat exchange box and is electrically connected to the control cabinet 6. When needed, the air-cooling device 2, controlled by the control cabinet 6, blows cool outside air into the heat exchange box 1. The air-cooling device can be a fan. The function of the air-cooling device 2 is to accelerate heat dissipation through forced air cooling when the natural heat dissipation of hot water is insufficient, ensuring that the circulating water can cool down quickly. Blowing cool air into the heat exchange box 1 through the air-cooling device 2 not only accelerates the heat dissipation of the heat exchange device 3, but also, due to the large surface area of ​​the heat exchange device 3, allows the circulating water on the heat exchange device 3 to be cooled by the cool air. The hot air is discharged through the ventilation port 4 on the side wall of the heat exchange box 1 or the reserved opening at the top of the heat exchange box 1.

[0033] In addition, to further accelerate the reduction of the circulating water temperature and replenish the lost circulating water, this device is also equipped with a water replenishment device, including a water storage tank 7 and a liquid level sensor. The water storage tank 7 is connected to the heat dissipation tank 1 via a water replenishment pipe, with the other end of the water replenishment pipe located at the upper end of the heat dissipation device and the end of the water replenishment pipe on the flat part 32. The second water pump 12 on the water replenishment pipe is controlled by the control cabinet. When the water level in the water tank is lower than the lower liquid level sensor 9, the control cabinet 6 starts the second water pump 12 to replenish the water in the water storage tank 7 to the heat dissipation tank 1. When the water level reaches the upper liquid level sensor 10, the second water pump 12 stops working. The function of the liquid level sensor is to monitor the water level in the water tank in real time to ensure that the water level is always kept within a suitable range and to ensure the stable operation of the cooling device; the function of the water replenishment device is to replenish the water lost due to evaporation or leakage in a timely manner, ensuring that the cooling system has enough circulating water for heat dissipation.

[0034] In actual operation, the entire cooling device effectively reduces the temperature of the mechanical seal circulating water through the coordinated work of its components, and can stably control the temperature of the circulating water at around 30℃, providing a reliable cooling guarantee for the normal operation of the pressure cooking kettle mechanical seal.

[0035] The parts not detailed above are existing technologies and therefore have not been described in detail.

Claims

1. A cooling device for reducing the circulating water in a mechanical seal, characterized in that: It includes a heat dissipation box and a control cabinet. The lower part of the heat dissipation box is connected to the water inlet of the pressure cooking kettle mechanical seal through a cold water pipe equipped with a first water pump. The first water pump is electrically connected to the control cabinet. The water outlet of the pressure cooking kettle mechanical seal is extended through a pipeline to a spray head at the upper part of the heat dissipation box. The heat dissipation box is equipped with a heat dissipation device located below the spray head. An air exchange port is provided on the side wall of the heat dissipation box below the heat dissipation device. A water tank is provided at the lower end of the heat dissipation box for storing circulating water. The heat dissipation device is provided with several heat dissipation fins and drainage holes, and the heat dissipation area of ​​the heat dissipation device is larger than the area of ​​the horizontal cross-section of the heat dissipation box.

2. The cooling device for reducing circulating water in mechanical seals according to claim 1, characterized in that: The heat dissipation device includes a flat part and a beveled part. The beveled part is provided with a number of heat dissipation fins at intervals, and the beveled part between the heat dissipation fins is provided with a number of drainage holes.

3. The cooling device for reducing circulating water in mechanical seals according to claim 2, characterized in that: The heat dissipation device has a trapezoidal cross-section.

4. The cooling device for reducing circulating water in mechanical seals according to claim 2, characterized in that: The heat dissipation device is in the shape of a boss.

5. The cooling device for reducing the circulating water of the mechanical seal according to claim 3 or 4, characterized in that: The diameter of the drain hole is proportional to the distance between the drain hole and the perpendicular line of the plane of the heat dissipation device, and the distance d between two adjacent heat dissipation fins is proportional to the diameter of the drain hole between the heat dissipation fins.

6. The cooling device for reducing circulating water in mechanical seals according to claim 5, characterized in that: It also includes an air-cooling device, which is located on the top of the heat sink and electrically connected to the control cabinet. The air-cooling device can blow cold air from the outside into the heat sink.

7. The cooling device for reducing circulating water in mechanical seals according to claim 6, characterized in that: It also includes a water replenishment device, which includes a water storage tank and a liquid level sensor. One end of the water storage tank is connected to a water replenishment pipe, and the other end of the water replenishment pipe extends into the heat dissipation box and is located at the upper end of the heat dissipation device. A second water pump is provided on the water replenishment pipe, and the second water pump is electrically connected to the control cabinet.

8. The cooling device for reducing circulating water in mechanical seals according to claim 7, characterized in that: The liquid level sensor is electrically connected to the control cabinet and includes an upper liquid level sensor and a lower liquid level sensor, which are located at the lower and upper ends of the water tank, respectively.

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