Immersion bath cooling system of vacuum setting machine

Abstract

The utility model discloses an immersion bath cooling system of a vacuum setting machine, and belongs to the technical field of cooling and setting of plastic pipes. The setting machine box body is provided with an inner cavity through which a product passes and is subjected to immersion bath cooling; the centralized water supply system supplies water to the setting machine box body through an external water source, so that an immersion bath water pool is formed in an inner cavity of the setting machine box body; the immersion bath drainage system comprises an overflow box and a centrifugal water pump, the centrifugal water pump is connected with the overflow box, a first liquid level valve is arranged in the overflow box, and when the water level in the overflow box exceeds the first liquid level valve, water is drained out through the centrifugal water pump; and when the water level in the overflow box is lower than the first overflow valve, the centrifugal water pump discharges water back into the overflow box. According to the immersion bath drainage system, through effective cooperation of the first liquid level valve and the centrifugal water pump, dynamic adjustment of the water level in the overflow box is achieved, manual intervention is not needed, and the water inlet and outlet balance problem and the vacuum fluctuation problem caused by water pressure fluctuation in the immersion bath production process can be effectively avoided.

Description

Technical Field

[0001] This utility model belongs to the field of plastic pipe cooling and shaping technology, specifically relating to an immersion cooling system for a vacuum shaping machine. Background Technology

[0002] In the pipe extrusion molding process, the vacuum stenter is a core piece of equipment that performs the dual functions of cooling and vacuum stenting. Currently, the vacuum stenter mainly achieves pipe cooling through two methods: spray cooling and immersion cooling. The immersion cooling mode achieves uniform cooling by maintaining a constant water level inside the stenter's housing.

[0003] However, in practical applications, it has been found that the immersion cooling system has the following technical defects due to the pressure fluctuations in the factory's water supply network:

[0004] (1) Sudden change in external water pressure caused an imbalance in the overflow water level, resulting in disordered pressure difference between the sizing box and the overflow box, which led to abnormal overflow speed of cooling water.

[0005] (2) Frequent manual adjustment is required to compensate for water level fluctuations. This intervention directly destroys the negative pressure environment established inside the vacuum forming machine, resulting in a decrease in the fit between the outer wall of the pipe and the sizing sleeve, and causing quality defects such as pipe ellipticity deviation and uneven wall thickness.

[0006] The aforementioned technical bottlenecks severely restrict the application effect of immersion cooling process in high-precision pipe production. Summary of the Invention

[0007] This invention addresses the aforementioned problems in the existing technology by proposing a vacuum setting machine that can ensure a stable internal negative pressure environment.

[0008] This utility model can be achieved through the following technical solutions:

[0009] An immersion cooling system for a vacuum setting machine, comprising:

[0010] The forming machine housing has an internal cavity for the products to pass through and be immersed in for cooling;

[0011] A centralized water supply system supplies water to the molding machine housing through an external water source, thereby forming a immersion water pool in the inner cavity of the molding machine housing;

[0012] A immersion drainage system includes an overflow tank and a centrifugal water pump, wherein the centrifugal water pump is connected to the overflow tank, and a first liquid level valve is provided inside the overflow tank.

[0013] When the water level in the overflow tank exceeds the first level valve, the water is discharged by the centrifugal water pump.

[0014] When the water level in the overflow tank is lower than the first level valve, the centrifugal water pump will return the water to the overflow tank.

[0015] As a further improvement of this utility model, the overflow tank is connected to the centrifugal water pump through an outlet pipe.

[0016] As a further improvement of this utility model, the outlet pipe is located near the lower end of the overflow box.

[0017] As a further improvement of this utility model, the centrifugal water pump is connected to the overflow tank through a self-circulating pipeline.

[0018] As a further improvement of this utility model, the first liquid level valve is installed at the port where the self-circulating pipe extends into the inner cavity of the overflow tank.

[0019] As a further improvement of this utility model, it also includes a vacuum exhaust system, which includes a vacuum pump, a sizing machine housing exhaust pipe, and an overflow box exhaust pipe. The vacuum pump is connected to the sizing machine housing and the overflow box through the sizing machine housing exhaust pipe and the overflow box exhaust pipe, respectively. The vacuum pump evacuates the overflow box to compensate for the pressure difference between the overflow box and the sizing machine housing.

[0020] As a further improvement of this utility model, the overflow box is provided with an air extraction valve on the air extraction pipe. When the immersion drainage system is turned on, the air extraction valve is turned on simultaneously to extract the gas in the overflow box so as to create a negative pressure environment inside it.

[0021] As a further improvement of this utility model, the vacuum exhaust system also includes a steam-water separator, wherein the water-gas mixture drawn by the vacuum pump is transported to the steam-water separator for water-gas separation so that they are discharged separately.

[0022] As a further improvement of this utility model, it also includes an automatic water inlet control system, which includes a main water tank, an automatic water inlet pipeline and a manual water inlet pipeline. The automatic water inlet pipeline and the manual water inlet pipeline are connected to a centralized water inlet pipe and are used to supply water to the main water tank.

[0023] As a further improvement of this utility model, a second liquid level valve is provided in the main water tank. When the water level in the main water tank is higher than the second liquid level valve, the valve of the automatic water inlet pipeline is automatically closed. When the water level in the main water tank is lower than the second liquid level valve, the valve of the automatic water inlet pipeline is automatically opened.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] 1. The immersion drainage system achieves dynamic adjustment of the water level inside the overflow tank through the effective cooperation between the first liquid level valve and the centrifugal water pump. No manual intervention is required, which can effectively avoid the problems of water balance and vacuum fluctuation caused by water pressure fluctuation during immersion production.

[0026] 2. The vacuum exhaust system can draw negative pressure into the overflow box to prevent the pressure difference between the sizing machine housing and the overflow box from becoming disordered due to sudden changes in external water pressure, which could lead to abnormal cooling water overflow speed. Because the vacuum exhaust system solves this problem, no manual intervention is required, thus ensuring that the negative pressure environment inside the sizing machine housing remains stable. This, in turn, ensures good fit between the product and the sizing sleeve, guaranteeing the quality of the final product.

[0027] 3. The immersion drainage system and the vacuum exhaust system work independently but also have a linkage function. Through the linkage between the two, the products do not need manual intervention during the immersion cooling process, making it more intelligent and automated. This design not only eliminates the sensitivity to fluctuations in external water supply pressure, but also ensures that the products are under optimal conditions throughout the cooling process, thereby improving the quality consistency of the finished products.

[0028] 4. The automatic water inlet control system automatically adjusts the water inlet volume according to the water level in the main water tank. Combined with the dynamic water level adjustment function of the immersion drainage system, it realizes a high degree of automation and intelligent management of the entire cooling process. Attached Figure Description

[0029] Figure 1 This is a structural schematic diagram of the vacuum setting machine of this utility model;

[0030] Figure 2 This is a structural schematic diagram of the vacuum setting machine of this utility model from another perspective.

[0031] Figure 3 This is the utility model Figure 1 A magnified view of a section at point A in the middle;

[0032] Figure 4 This is the utility model Figure 2 A magnified view of a section at point B in the middle;

[0033] Figure 5 This is the utility model Figure 2 A magnified view of a section at point C.

[0034] In the diagram, 100 represents the standard chassis.

[0035] 200. Centralized water supply system;

[0036] 300. Immersion drainage system; 310. Overflow tank; 311. First level valve; 320. Centrifugal water pump; 330. Outlet pipe; 340. Self-circulation pipe;

[0037] 400. Vacuum exhaust system; 410. Vacuum pump; 420. Sterilizer housing exhaust pipe; 430. Overflow box exhaust pipe; 431. Exhaust pipe valve; 440. Steam-water separator;

[0038] 500 Automatic water inlet control system; 510 Main water tank; 511 Second level valve; 512 Processing window; 520 Automatic water inlet pipeline; 530 Manual water inlet pipeline. Detailed Implementation

[0039] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. The technical methods of the present invention will be further described, but the present invention is not limited to these embodiments.

[0040] like Figures 1-5 As shown, this utility model provides an immersion cooling system for a vacuum setting machine, comprising:

[0041] The shaping machine housing 100 has an inner cavity for the products to pass through and for cooling and vacuum shaping;

[0042] The centralized water supply system 200 supplies water to the molding machine casing 100 through an external water source;

[0043] The immersion drainage system 300 includes an overflow tank 310, a centrifugal water pump 320, a water outlet pipe 330, and a self-circulation pipe 340. Water overflows from the molding machine housing 100 into the overflow tank 310. The inner cavity of the overflow tank 310 is connected to the centrifugal water pump 320 through the water outlet pipe 330. At the same time, the centrifugal water pump 320 is also connected to the inner cavity of the overflow tank 310 through the self-circulation pipe 340. The overflow tank 310 is equipped with a first liquid level valve 311, which maintains a stable water level in the overflow tank 310.

[0044] Specifically, when the workpiece is immersed in the bath, the entire equipment is supplied with water through the centralized water supply system 200 connected to an external water source. The water level in the shaping machine box 100 is controlled by natural overflow. The self-priming centrifugal pump of the immersion drainage system 300 is started to discharge the hot water in the overflow box 310, thus ensuring the balance of inlet and outlet water.

[0045] The working principle of the immersion drainage system 300 is as follows:

[0046] 1. When the water level in the overflow tank 310 is higher than the outlet pipe 330 (inlet of centrifugal water pump 320), the centrifugal water pump 320 will automatically start to drain water to ensure that the overflow tank 310 will not be filled with water.

[0047] 2. When the water level is lower than the water level of the first liquid level valve 311, the centrifugal water pump 320 discharges water to the overflow tank 310 through the water outlet pipe to raise the water level in the overflow tank 310 and ensure that the water level is higher than the pump port of the centrifugal water pump 320, so as to avoid the vacuum fluctuation of the equipment caused by the centrifugal water pump 320 drawing air into the overflow tank 310.

[0048] 3. When the water level is higher than the water level of the centrifugal water pump 320, the centrifugal water pump 320 discharges the water in the overflow tank 310 to the centralized drainage pipe through the outlet pipe.

[0049] 4. When the external water pressure increases, the overflow volume increases, and the first liquid level valve 311 closes to balance the rise in water level caused by the increase in overflow volume; when the external water pressure decreases, the overflow volume decreases, and the first liquid level valve 311 opens to balance the drop in water level caused by the decrease in overflow volume; thus achieving dynamic stability of the vacuum.

[0050] In summary, the immersion drainage system 300 achieves dynamic adjustment of the water level inside the overflow tank 310 through the effective cooperation between the first liquid level valve 311 and the centrifugal water pump 320. It does not require manual intervention and can effectively avoid the problems of water balance and vacuum fluctuation caused by water pressure fluctuation during immersion production.

[0051] Furthermore, the inlet of the water outlet pipe 330, which connects to the overflow tank 310, is located near the lower end of the overflow tank 310, and the first level valve 311 is located above this position. This design helps to maintain the optimal water level and reduce unnecessary water waste.

[0052] Preferably, it also includes a vacuum exhaust system 400, which has a vacuum pump 410, a sizing machine housing exhaust pipe 420, and an overflow box exhaust pipe 430. The vacuum pump 410 is connected to the sizing machine housing 100 and the overflow box 310 through the sizing machine housing exhaust pipe 420 and the overflow box exhaust pipe 430, respectively. The vacuum pump 410 evacuates the overflow box 310 to compensate for the pressure difference between the overflow box 310 and the sizing machine housing 100.

[0053] By setting up the vacuum exhaust system 400, the overflow box 310 can be subjected to negative pressure treatment to prevent the pressure difference between the sizing box 100 and the overflow box 310 from becoming disordered due to sudden changes in external water pressure, which could lead to abnormal cooling water overflow speed.

[0054] Because the vacuum exhaust system 400 solves this problem, no manual intervention or adjustment is required, thus ensuring that the negative pressure environment established inside the sizing machine housing 100 remains stable. This, in turn, ensures good fit between the product and the sizing sleeve, guaranteeing the final product quality.

[0055] In this embodiment, the immersion drainage system 300 and the vacuum exhaust system 400 work independently but also have a linkage function. Through the linkage between the two, the product does not require manual intervention during the immersion cooling process, making it more intelligent and automated. This design not only eliminates the sensitivity to fluctuations in external water supply pressure but also ensures that the product is under optimal conditions throughout the cooling process, thereby improving the quality consistency of the finished product.

[0056] Preferably, the overflow tank exhaust pipe 430 is equipped with an exhaust pipe valve 431 to control whether to extract air from the overflow tank 310. When the immersion drainage system 300 is opened, the exhaust pipe valve 431 is opened simultaneously to extract the gas in the overflow tank 310 so as to create a negative pressure environment inside it.

[0057] Preferably, the vacuum exhaust system 400 further includes a steam-water separator 440. The water-gas mixture drawn by the vacuum pump 410 is transported to the steam-water separator 440 for water-gas separation so that it can be discharged separately. The separated water can be recycled, which saves water resources and reduces production costs.

[0058] Preferably, it also includes an automatic water inlet control system 500, which includes a main water tank 510, an automatic water inlet pipeline 520, and a manual water inlet pipeline 530. The automatic water inlet pipeline 520 and the manual water inlet pipeline 530 are connected to a centralized water inlet pipe and are used to supply water to the main water tank 510.

[0059] The main water tank 510 is equipped with a second level valve 511. When the water level in the main water tank 510 is higher than the second level valve 511, the valve of the automatic water inlet pipeline 520 is automatically closed. When the water level in the main water tank 510 is lower than the second level valve 511, the valve of the automatic water inlet pipeline 520 is automatically opened, while the valve of the manual water inlet pipeline 530 is opened to the appropriate position according to the flow demand.

[0060] With the cooperation of the automatic water inlet pipe 520 and the second liquid level valve 511, the automatic monitoring and adjustment of the water level in the main water tank 510 is realized, reducing the need for manual intervention and ensuring that the water level in the main water tank 510 is always kept within a reasonable range. This avoids problems such as insufficient water supply due to low water level or overflow due to high water level, thereby ensuring the continuity and stability of production.

[0061] The instant water inlet control system 500 automatically adjusts the water inlet volume in the water tank 510, and combined with the water level adjustment function of the immersion drainage system 300, it realizes a high degree of automation and intelligent management of the entire cooling process.

[0062] In addition, the main water tank 510 has a processing window 512 at the location of the second level valve 511, and the second level valve 511 is detachably installed in the main water tank 510 by fasteners. Therefore, when the second level valve 511 needs to be cleaned or malfunctions, it can be easily unscrewed through the processing window 512. Compared with conventional lever-type level valves, it is easier to clean or disassemble.

[0063] The technical means disclosed in this utility model are not limited to those described above, but also include technical solutions composed of any combination of the above technical features. The above are specific embodiments of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications are also considered within the scope of protection of this utility model.

[0064] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0065] Furthermore, in this utility model, the use of terms such as "first," "second," and "a" is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified. The terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two elements or the interaction between two elements, unless otherwise explicitly specified. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0066] The technical solutions of the various embodiments of this utility model can be combined with each other, but only if they can be implemented by those skilled in the art. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the protection scope claimed by this utility model.

[0067] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. An immersion cooling system for a vacuum setting machine, characterized in that, include: The forming machine housing has an internal cavity for the products to pass through and be immersed in for cooling; A centralized water supply system supplies water to the molding machine housing through an external water source, thereby forming a immersion water pool in the inner cavity of the molding machine housing; A immersion drainage system includes an overflow tank and a centrifugal water pump, wherein the centrifugal water pump is connected to the overflow tank, and a first liquid level valve is provided inside the overflow tank. When the water level in the overflow tank exceeds the first level valve, the water is discharged by the centrifugal water pump. When the water level in the overflow tank is lower than the first level valve, the centrifugal water pump will return the water to the overflow tank.

2. The immersion cooling system for a vacuum setting machine according to claim 1, characterized in that, The overflow tank is connected to the centrifugal water pump via an outlet pipe.

3. The immersion cooling system for a vacuum setting machine according to claim 2, characterized in that, The outlet pipe is located near the lower end of the overflow box.

4. The immersion cooling system for a vacuum setting machine according to claim 1, characterized in that, The centrifugal water pump is connected to the overflow tank via a self-circulating pipeline.

5. The immersion cooling system for a vacuum setting machine according to claim 4, characterized in that, The first level valve is installed at the port where the self-circulating pipe extends into the inner cavity of the overflow tank.

6. The immersion cooling system for a vacuum setting machine according to claim 1, characterized in that, It also includes a vacuum exhaust system, which includes a vacuum pump, a sizing machine housing exhaust pipe, and an overflow box exhaust pipe. The vacuum pump is connected to the sizing machine housing and the overflow box through the sizing machine housing exhaust pipe and the overflow box exhaust pipe, respectively. The vacuum pump evacuates the overflow box to compensate for the pressure difference between the overflow box and the sizing machine housing.

7. The immersion cooling system for a vacuum setting machine according to claim 6, characterized in that, The overflow tank is equipped with an extraction valve on its extraction pipe. When the immersion drainage system is turned on, the extraction valve is opened simultaneously to extract the gas in the overflow tank so as to create a negative pressure environment inside.

8. The immersion cooling system for a vacuum setting machine according to claim 6, characterized in that, The vacuum exhaust system also includes a vapor-water separator, to which the water-gas mixture drawn by the vacuum pump is transported for separation and separate discharge.

9. The immersion cooling system for a vacuum setting machine according to claim 1, characterized in that, It also includes an automatic water inlet control system, which includes a main water tank, an automatic water inlet pipeline and a manual water inlet pipeline. The automatic water inlet pipeline and the manual water inlet pipeline are connected to a centralized water inlet pipe and are used to supply water to the main water tank.

10. The immersion cooling system for a vacuum setting machine according to claim 9, characterized in that, The main water tank is equipped with a second level valve. When the water level in the main water tank is higher than the second level valve, the valve of the automatic water inlet pipeline will automatically close. When the water level in the main water tank is lower than the second level valve, the valve of the automatic water inlet pipeline will automatically open.

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