Vacuum pump water recovery device

Abstract

The utility model discloses a vacuum pump water recovery device which comprises a vacuum pump and a water circulation tank, the vacuum pump is used for providing negative pressure to extract gas, and impurities mixed in the gas are mixed with working water of the vacuum pump to form mixed liquid; the mixed liquid passes through a water outlet in the vacuum pump, flows through a water drainage pipeline and enters the water circulation tank through a water inlet in the water circulation tank; the water circulation tank comprises a tank body, a first-stage separation assembly and a second-stage separation assembly, and the first-stage separation assembly is arranged in the middle of the water circulation tank in a partition mode perpendicular to the horizontal plane to separate out oily substances; the second-stage separation assembly is arranged in a separated manner in a manner of being perpendicular to the horizontal plane and parallel to the first-stage separation assembly so as to separate solid particles; purified water flows back to the vacuum pump from the water inlet of the vacuum pump through the water supplementing pipeline via the water outlet of the water circulation tank, so that the water of the vacuum pump is recycled, the consumption of water resources is greatly reduced, the production cost is reduced, the water body environment is protected, and the green and sustainable development of enterprises is facilitated.

Description

Technical Field

[0001] The utility model relates to the field of wastewater recovery and treatment equipment, in particular to a vacuum pump water recovery device. Background Art

[0002] In the production process of modified materials, especially in the fields of plastic modification and polymer composite material manufacturing, the vacuum pump system is an indispensable key component. The role of the vacuum pump is to extract air and volatile small molecules from equipment such as extruders to ensure the stability of the production process and product quality. However, this process is accompanied by a common problem: the loss and contamination of vacuum pump water.

[0003] Normally, vacuum pumps use water rings to maintain their sealing effect. When the pump is running, the air and volatile small molecules in the system are pumped out under negative pressure, and then condense into oily or liquid substances in contact with cooling water in the pump body, and mix with water to form an oil-water mixture. If these oil-water mixtures are directly discharged without treatment, not only will they seriously waste precious water resources, but the discharge of oily wastewater will also damage the ecological environment.

[0004] Traditional treatment methods often adopt the method of direct discharge. Although the operation is simple, the consequences are very serious. On the one hand, frequent pumping water replenishment will lead to a significant increase in production costs; on the other hand, the discharge of oily wastewater may cause a series of environmental problems such as eutrophication of water bodies and reduction of biodiversity. In the long run, this is a major challenge to the sustainable development strategy of enterprises. Utility Model Content

[0005] In order to solve the above technical problems, the present application provides a vacuum pump water recovery device to at least solve or alleviate the problems existing in the above prior art.

[0006] In order to achieve the above object, a vacuum pump water recovery device is provided, comprising: a vacuum pump and a water circulation tank, wherein the vacuum pump is used to provide a negative pressure environment to extract gas, so that impurities mixed in the gas flow into the vacuum pump along with the gas; the vacuum pump contains working water, the temperature of the working water is lower than the temperature of the impurities, so that the impurities condense and mix with the working water to form a mixed liquid;

[0007] The vacuum pump is provided with a drain port and a water inlet; the water circulation tank is provided with a water inlet hole and a water outlet hole; the drain port is connected to the water inlet hole through a drain pipe so that the mixed liquid enters the water circulation tank;

[0008] The water circulation tank comprises a tank body and a primary separation component and a secondary separation component. The primary separation component is partitioned and arranged in the middle of the water circulation tank in a manner perpendicular to the horizontal plane, so that the water circulation tank is divided into a primary purification space and a secondary purification space. The water inlet is connected to the primary purification space to separate the oily substance in the mixed liquid; the secondary separation component is partitioned and arranged in the secondary purification space in a manner perpendicular to the horizontal plane and parallel to the primary separation component. The upper edge of the secondary separation component is lower than the upper edge of the primary separation component, so that the secondary purification space is divided into a sedimentation area and a clear water area to separate the solid particles in the mixed liquid;

[0009] The water outlet is arranged in the clean water area, and the water inlet is connected to the water outlet through a water replenishment pipeline to form a liquid circulation flow channel, so that the working water in the vacuum pump can be replenished.

[0010] Optionally, the primary separation component includes a first solid partition and a plate screen, the upper edge of the first solid partition is flush with the upper edge of the water circulation tank, the lower edge of the first solid partition is fixedly connected to the plate screen and a connecting line is formed between them, and the connecting line is located below the liquid surface, the lower edge of the plate screen is connected to the bottom surface of the water circulation tank, and the plate screen is provided with sieve holes, so that when the mixed liquid flows through the plate screen, the water therein flows out through the sieve holes, and the oily substance is blocked by the sieve holes.

[0011] Optionally, the secondary separation component is a second solid partition, and the upper edge of the second solid partition is lower than the upper edge of the water circulation tank, so that the water flows up and over the upper edge of the second solid partition into the clean water area to precipitate solid impurities, so that the water entering the clean water area is purified to form purified water; the purified water enters the vacuum pump as working water through the water make-up pipeline.

[0012] Optionally, the liquid level of the clean water zone is higher than the water inlet height of the vacuum pump, so that the purified water flows back to the vacuum pump based on gravity.

[0013] Optionally, a first mounting groove is provided in the middle of the water circulation tank along its two side walls and bottom surface, and the plane where the first mounting groove is located is perpendicular to the horizontal plane, so that the first-level separation component can be inserted into the first mounting groove, so that the water circulation tank is divided into a first-level purification space and a second-level purification space.

[0014] Optionally, a second installation groove is provided in the secondary purification space along the two side walls and the bottom surface of the water circulation tank, and the plane where the second installation groove is located is parallel to the plane where the first installation groove is located, so that the secondary separation component can be inserted into the second installation groove, so that the secondary purification space is divided into a sedimentation area and a clean water area.

[0015] Optionally, the vacuum pump is a water ring vacuum pump.

[0016] Optionally, it further comprises: a base, and the water circulation tank and the vacuum pump are both installed on the base.

[0017] Optionally, it also includes: an extruder, the extruder is connected to the vacuum pump through a vacuum pipeline, the extruder is provided with an exhaust hole, the gas and impurities mixed in the gas are discharged from the extruder through the exhaust hole, and flow into the vacuum pump through the vacuum pipeline.

[0018] Optionally, it also includes: a vacuum tank, wherein an air inlet and an air outlet are provided on a side wall of the vacuum tank, the air inlet is connected to the vacuum pipeline, and the air outlet is connected to the vacuum pump. When the vacuum pump is working, the gas and impurities mixed in the gas extracted enter the vacuum tank through the vacuum pipeline via the air inlet, and flow out of the vacuum tank from the air outlet and enter the vacuum pump.

[0019] The present application provides a vacuum pump water recovery device, comprising: a vacuum pump and a water circulation tank, wherein the vacuum pump is used to provide a negative pressure environment to extract gas, so that impurities mixed in the gas flow into the vacuum pump along with the gas; the vacuum pump contains working water, the temperature of the working water is lower than the temperature of the impurities, so that the impurities condense and mix with the working water to form a mixed liquid; the vacuum pump is provided with a drain port and a water inlet; the water circulation tank is provided with a water inlet hole and a water outlet hole; the drain port is connected to the water inlet hole through a drain pipe so that the mixed liquid enters the water circulation tank; the water circulation tank comprises a tank body and a primary separation component and a secondary separation component, the primary separation component is arranged perpendicular to the horizontal plane The partition is arranged in the middle of the water circulation tank, so that the water circulation tank is divided into a primary purification space and a secondary purification space, and the water inlet is connected to the primary purification space to separate the oily substances in the mixed liquid; the secondary separation component is arranged in the secondary purification space in a manner perpendicular to the horizontal plane and parallel to the primary separation component, and the upper edge of the secondary separation component is lower than the upper edge of the primary separation component, so that the secondary purification space is divided into a sedimentation area and a clear water area to separate the solid particles in the mixed liquid; the water outlet is arranged in the clear water area, and the water inlet is connected to the water outlet through a water supply pipeline to form a liquid circulation flow channel, so that the working water in the vacuum pump can be replenished. The recycling of vacuum pump water is realized, which greatly reduces the consumption of water resources, reduces production costs, and helps to protect the water environment, which is conducive to the green and sustainable development of enterprises. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings constituting a part of this application are used to provide a further understanding of this application, so that other features, purposes and advantages of this application become more obvious. The schematic embodiment drawings and their descriptions of this application are used to explain this application and do not constitute an improper limitation on this application. In the drawings:

[0021] Figure 1 It is a schematic diagram of the structure of a vacuum pump water recovery device according to an embodiment of the present application;

[0022] Figure 2 is a top view of a water circulation tank according to an embodiment of the present application;

[0023] Figure 3 This is a side view of the installation of a primary separation component according to an embodiment of the present application;

[0024] Figure 4 is a side view of the installation of a secondary separation assembly according to an embodiment of the present application;

[0025] Among them, the numbers in the figure represent: 1. vacuum pump; 11. drain outlet; 12. water inlet; 13. drain pipeline; 14. water supply pipeline; 2. water circulation tank; 21. tank body; 211. water inlet hole; 212. water outlet hole; 22. first installation groove; 23. second installation groove; 24. primary separation component; 241. first solid partition; 242. plate screen; 25. secondary separation component; 251. second solid partition; 26. primary purification space; 27. secondary purification space; 271. sedimentation area; 272. clean water area; 3. base; 4. extruder; 41. exhaust hole; 42. vacuum pipeline; 5. vacuum tank; 51. air inlet; 52. air outlet. DETAILED DESCRIPTION

[0026] In order to enable those skilled in the art to better understand the solution of the present application, the following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of this application.

[0027] It should be noted that the term "including" in the specification and claims of this application and the above-mentioned drawings is intended to cover non-exclusive inclusions. In this application, the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", etc. is based on the orientation or positional relationship shown in the drawings. These terms are mainly for better describing the present application and its embodiments, and are not used to limit the indicated components to have specific orientations. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to the specific circumstances.

[0028] Figure 1 It is a schematic diagram of the structure of a vacuum pump water recovery device according to an embodiment of the present application; Figure 2 is a top view of a water circulation tank according to an embodiment of the present application; Figure 3 This is a side view of the installation of a primary separation component according to an embodiment of the present application; Figure 4 is a side view of the installation of a secondary separation assembly according to an embodiment of the present application;

[0029] like Figure 1-Figure 4 As shown, the provided vacuum pump water recovery device comprises: a vacuum pump 1 and a water circulation tank 2, wherein the vacuum pump 1 is used to provide a negative pressure environment to extract gas, so that impurities mixed in the gas flow into the vacuum pump 1 along with the gas; the vacuum pump 1 contains working water, and the temperature of the working water is lower than the temperature of the impurities, so that the impurities condense and mix with the working water to form a mixed liquid;

[0030] The vacuum pump 1 is provided with a drain port 11 and a water inlet 12; the water circulation tank 2 is provided with a water inlet hole 211 and a water outlet hole 212; the drain port 11 is connected to the water inlet hole 211 through a drain pipe 13, so that the mixed liquid enters the water circulation tank 2;

[0031] The water circulation tank 2 includes a tank body 21 and a primary separation component 24 and a secondary separation component 25. The primary separation component 24 is partitioned and arranged in the middle of the water circulation tank 2 in a manner perpendicular to the horizontal plane, so that the water circulation tank 2 is divided into a primary purification space 26 and a secondary purification space 27. The water inlet 211 is connected to the primary purification space 26 to separate the oily substance in the mixed liquid; the secondary separation component 25 is partitioned and arranged in the secondary purification space 27 in a manner perpendicular to the horizontal plane and parallel to the primary separation component 24. The upper edge of the secondary separation component 25 is lower than the upper edge of the primary separation component 24, so that the secondary purification space 27 is divided into a sedimentation area 271 and a clear water area 272 to separate the solid particles in the mixed liquid;

[0032] The water outlet is arranged in the clean water area 272, and the water inlet 12 is connected to the water outlet through the water supply pipeline 14 to form a liquid circulation flow channel, so that the working water in the vacuum pump 1 can be replenished. The recycling of water in the vacuum pump 1 is realized, which greatly reduces the consumption of water resources, reduces the production cost, and helps to protect the water environment, which is conducive to the green and sustainable development of enterprises.

[0033] Optionally, the primary separation component 24 includes a first solid partition plate 241 and a plate screen 242, the upper edge of the first solid partition plate 241 is flush with the upper edge of the water circulation tank 2, the lower edge of the first solid partition plate 241 is fixedly connected to the plate screen 242 and a connecting line is formed between them, and the connecting line is located below the liquid surface, the lower edge of the plate screen 242 is connected to the bottom surface of the water circulation tank 2, and the plate screen 242 is provided with sieve holes, so that when the mixed liquid flows through the plate screen 242, the water therein flows out through the sieve holes, and the oily substance is blocked by the sieve holes.

[0034] In this embodiment, the fixed connection and connecting line design between the first solid partition plate 241 and the plate screen 242 ensure the stable positioning of the separation assembly in the water circulation tank 2, the connecting line is set at a position below the liquid level, and the structure is relatively simple, easy to manufacture and install, and also convenient for subsequent maintenance and cleaning. In addition, due to the design of the plate screen 242, water can quickly flow out through the sieve holes, while the oily substance is effectively blocked, which greatly improves the treatment efficiency of the mixed liquid. In addition, the lower edge of the plate screen 242 is tightly connected to the bottom surface of the water circulation tank 2 to form a closed filtering area, ensuring a stable separation effect.

[0035] Optionally, the secondary separation component 25 is a second solid partition 251, and the upper edge of the second solid partition 251 is lower than the upper edge of the water circulation tank 2, so that the water flow rises over the upper edge of the second solid partition 251 and enters the clean water area 272 to precipitate solid impurities, so that the water entering the clean water area 272 is purified to form purified water; the purified water enters the vacuum pump 1 as working water through the water replenishment pipeline 14.

[0036] In this embodiment, by providing a second solid partition 251, the water flow overflows the upper edge of the partition during the rising process and enters the clean water area 272. This design effectively promotes the natural sedimentation of solid impurities, which is conducive to the sedimentation of heavier solid particles to the bottom of the water circulation tank 2, thereby ensuring that the water entering the clean water area 272 is purer. In addition, the design of the second solid partition 251 simplifies the internal structure of the entire water circulation tank 2, avoids the use of complex filtering equipment or media, reduces manufacturing costs and maintenance difficulties, and maintains high-efficiency water purification capabilities. Furthermore, the purified water is directly returned to the vacuum pump 1 as working water through the water supply pipeline 14, realizing the immediate recycling of water and improving the overall efficiency and economy of the system.

[0037] Optionally, the liquid level of the clean water zone 272 is higher than the water inlet 12 of the vacuum pump 1 , so that the purified water flows back to the vacuum pump 1 based on gravity.

[0038] In this embodiment, since the liquid level of the clean water zone 272 is higher than the water inlet 12 of the vacuum pump 1, the purified water can naturally flow back to the vacuum pump 1 by gravity without the need for additional pumping or lifting equipment. This not only simplifies the system structure, but also reduces energy consumption and operating costs. In addition, the design of gravity reflux reduces the use of mechanical components and reduces the risk of system downtime due to mechanical failure. This makes the entire vacuum pump water recovery device more reliable and can operate stably for a long time. At the same time, since there are no complex mechanical components, the design of the gravity reflux system makes maintenance and management work simpler. In addition, this design is not limited by power supply or external equipment and can operate stably under various environments.

[0039] Optionally, a first mounting groove 22 is provided in the middle of the water circulation tank 2 along its two side walls and bottom surface, and the plane where the first mounting groove 22 is located is perpendicular to the horizontal plane, so that the first-stage separation component 24 can be inserted into the first mounting groove 22, so that the water circulation tank 2 is divided into a first-stage purification space 26 and a second-stage purification space 27.

[0040] Optionally, a second installation groove 23 is provided in the secondary purification space 27 along the two side walls and the bottom surface of the water circulation tank 2, so that the plane where the second installation groove 23 is located is parallel to the plane where the first installation groove 22 is located, and the secondary separation assembly 25 is inserted into the second installation groove 23, so that the secondary purification space 27 is divided into a sedimentation area 271 and a clean water area 272.

[0041] In this embodiment, by setting the first and second mounting grooves 23 in the water circulation tank 2, and respectively plugging the primary and secondary separation components 25, a modular design of the system is realized, so that different components can be independently installed, replaced or upgraded without large-scale changes to the entire system, thereby improving the flexibility and maintainability of the system and reducing future upgrade and maintenance costs. In addition, the first mounting groove 22 divides the water circulation tank 2 into a primary purification space 26 and a secondary purification space 27, and the second mounting groove 23 further subdivides the secondary purification space 27 into a sedimentation area 271 and a clear water area 272. The spatial division enables the mixed liquid to pass through different areas in sequence according to a predetermined purification process, thereby achieving more efficient impurity separation and water purification. Furthermore, the design of the mounting groove enhances the convenience of installation, and also increases the stability and sealing of the structure, which can ensure that the primary and secondary separation components 25 are firmly fixed in the mounting groove, and prevent the mixed liquid from leaking during the purification process, which helps to maintain the stable operation of the system. At the same time, the plug-in installation method simplifies the installation and maintenance process. Operators can insert or remove the separation component into the installation slot without complicated tools or cumbersome steps, which reduces the difficulty and cost of installation and maintenance and improves work efficiency. Finally, as production needs change or technology advances, the separation component can be adjusted or upgraded to meet different purification needs. The design of the installation slot also reserves space for other components or functions that may be added in the future, making the system more adaptable and scalable.

[0042] Optionally, the vacuum pump 1 is a water ring vacuum pump.

[0043] In this embodiment, the water ring vacuum pump uses water as the working fluid to form a liquid ring to pump gas. It has a high pumping rate and efficiency, and is particularly suitable for scenarios where a large amount of gas needs to be processed. In addition, the structure of the water ring vacuum pump is relatively simple, without complex mechanical parts, so it is more durable and easy to maintain. In addition, the water ring vacuum pump is able to handle media containing solid particles, dust or corrosive gases without causing damage to the pump itself. This allows it to maintain stable performance in various harsh environments. Finally, water is used as the working fluid, which can be recycled and reused, reducing resource consumption and reducing production costs.

[0044] Optionally, it further comprises: a base 3 , on which the water circulation tank 2 and the vacuum pump 1 are both installed.

[0045] In this embodiment, by installing both the water circulation tank 2 and the vacuum pump 1 on the base 3, the structure of the entire system becomes more compact and integrated, which not only reduces the floor space, but also makes the layout of the equipment more reasonable, and is convenient for operation and maintenance. In addition, the base 3 provides a stable support for the water circulation tank 2 and the vacuum pump 1, effectively preventing the vibration and shaking of the equipment during operation, improving the stability of the entire system, and extending the service life of the equipment. In addition, the design of the base 3 allows the entire system to be moved and installed as a whole, greatly simplifying the handling and installation process of the equipment and reducing dependence on the on-site environment. Finally, since the water circulation tank 2 and the vacuum pump 1 are both installed on the base 3, the operator can more conveniently manage and maintain the entire system in a unified manner, improving work efficiency and reducing maintenance costs.

[0046] Optionally, it also includes: an extruder 4, which is connected to the vacuum pump 1 through a vacuum pipeline 42, and an exhaust hole 41 is opened on the extruder 4, and the gas and impurities mixed in the gas are discharged from the extruder 4 through the exhaust hole 41 and flow into the vacuum pump 1 through the vacuum pipeline 42.

[0047] In this embodiment, the vacuum pump 1 can effectively discharge the gas generated during the extrusion process and the impurities mixed in the gas through the negative pressure principle, thereby avoiding the formation of bubbles during the extrusion process and improving the quality of the product.

[0048] Optionally, it also includes: a vacuum tank 5, wherein an air inlet 51 and an air outlet 52 are provided on the side wall of the vacuum tank 5, wherein the air inlet 51 is connected to the vacuum pipeline 42, and the air outlet 52 is connected to the vacuum pump 1. When the vacuum pump 1 is working, the gas and impurities mixed in the gas extracted enter the vacuum tank 5 through the vacuum pipeline 42 via the air inlet 51, and flow out of the vacuum tank 5 from the air outlet 52 and enter the vacuum pump 1.

[0049] In this embodiment, the vacuum tank 5 acts as an intermediate buffer link for gas flow, which can stabilize the rate and pressure of gas flow, reduce pulsation and impact during gas flow, thereby protecting the vacuum pump 1 from damage caused by instantaneous high pressure or flow, and extending its service life. In addition, inside the vacuum tank 5, the gas and impurities mixed therein may be separated due to gravity, temperature difference or chemical reaction, and some impurities may be deposited or adsorbed in the tank, thereby improving the purity of the gas entering the vacuum pump 1. Furthermore, as an independent component, the vacuum tank 5 is convenient for regular inspection and maintenance, such as cleaning sediments, checking corrosion, etc.

[0050] Optionally, an opening is provided at the top of the water circulation tank 2 to facilitate taking out the oily substance.

[0051] In the present embodiment, the opening provided on the upper part of the water circulation tank 2 allows the operator to easily remove the oily substances, thereby keeping the water circulation tank 2 clean and running efficiently. In addition, the design of the opening allows the maintenance personnel to more easily clean and inspect the inside of the water circulation tank 2. This reduces the difficulty of maintenance, improves the maintenance efficiency, and ensures the stable operation of the entire system. In addition, by conveniently removing the oily substances, the operator can reduce the downtime caused by cleaning the water circulation tank 2, improve the utilization rate of the equipment, and reduce production costs. Furthermore, regularly cleaning the oily substances in the water circulation tank 2 can prevent them from accumulating too much and causing damage to the system. The design of the opening makes this cleaning process more convenient, thereby enhancing the reliability of the entire system. Finally, by conveniently removing and processing the oily substances, this technology helps to reduce pollution to the environment, meets the requirements of sustainable development, and promotes the effective use of resources and environmental protection.

[0052] Optionally, a cover is detachably mounted on the upper portion of the water circulation tank 2 .

[0053] In this embodiment, the cover can effectively prevent external impurities, dust or foreign matter from entering the water circulation tank 2, thereby maintaining the cleanliness of the water quality, helping to extend the service life of the equipment, and reducing malfunctions caused by the accumulation of impurities. In addition, since the cover is detachable, the operator can easily open it to remove the oily substance accumulated in the water circulation tank 2, making the cleaning work simpler and more efficient, and helping to maintain the good operation of the equipment. In addition, the presence of the cover can also improve the safety of the equipment to a certain extent, and it can prevent the occurrence of safety accidents. Finally, since the cover is detachable, it can be more flexibly adapted to different working environments and needs. When it is necessary to frequently remove the oily substance or perform maintenance, the operator can easily remove and install the cover.

[0054] Optionally, the water circulation tank 2 is a rectangular parallelepiped water pool.

[0055] In the present embodiment, the design of the rectangular pool enables the water circulation tank 2 to utilize space more efficiently, and its regular geometric shape facilitates layout and installation in a limited space, maximizing the use of available site resources. In addition, the structure of the rectangular pool is relatively simple, and the manufacturing and installation process is easier, which reduces production costs, shortens the construction period, and enables the entire vacuum pump water recovery device to be put into use more quickly. In addition, the design of the rectangular pool makes maintenance and cleaning work more convenient, and the flat wall and bottom are convenient for operators to clean and inspect, reducing the difficulty and time of maintenance. Finally, the rectangular pool as the water circulation tank 2 has a more stable structure, is not prone to deformation or tilting, improves the stability of the entire system, and ensures the long-term stable operation of the vacuum pump water recovery device.

[0056] Optionally, the first solid partition plate 241 and the second solid partition plate 251 are both stainless steel plates.

[0057] In the present embodiment, the stainless steel plate has excellent corrosion resistance, can resist the corrosive substances that may exist in the water circulation tank 2, and ensures the long-term stability and service life of the partition. In addition, the stainless steel plate has high mechanical strength, can withstand the pressure and impact during the water circulation process, ensures the structural integrity of the partition, and prevents functional failure caused by deformation or rupture. In addition, the surface of the stainless steel plate is smooth and it is not easy to adhere to dirt or impurities, making cleaning and maintenance work simpler and more efficient, reducing the maintenance cost and time caused by cleaning difficulties. Furthermore, the stainless steel plate is an environmentally friendly material that will not release harmful substances into the environment, ensuring the safety and environmental protection of the vacuum pump water recovery device, and meeting the requirements of sustainable development. Finally, due to its excellent corrosion resistance, mechanical strength and easy maintenance, the stainless steel plate has higher economic benefits in long-term use, reducing the additional costs caused by frequent replacement or maintenance.

[0058] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A vacuum pump water recovery device, characterized in that: include: A vacuum pump (1) and a water circulation tank (2), wherein the vacuum pump (1) is used to provide a negative pressure environment to extract gas, so that impurities mixed in the gas flow into the vacuum pump (1) along with the gas; the vacuum pump (1) contains working water, the temperature of the working water is lower than the temperature of the impurities, so that the impurities condense and mix with the working water to form a mixed liquid; The vacuum pump (1) is provided with a water outlet (11) and a water inlet (12); the water circulation tank (2) is provided with a water inlet hole (211) and a water outlet hole (212); the water outlet (11) is connected to the water inlet hole (211) via a water drainage pipeline (13) so that the mixed liquid enters the water circulation tank (2); The water circulation tank (2) comprises a tank body (21) and a primary separation component (24) and a secondary separation component (25); the primary separation component (24) is partitioned and arranged in a manner perpendicular to a horizontal plane at the middle of the water circulation tank (2), so that the water circulation tank (2) is divided into a primary purification space (26) and a secondary purification space (27); the water inlet (211) is connected to the primary purification space (26) to separate the oily substances in the mixed liquid; the secondary separation component (25) is partitioned and arranged in a manner perpendicular to a horizontal plane and parallel to the primary separation component (24) in the secondary purification space (27); the upper edge of the secondary separation component (25) is lower than the upper edge of the primary separation component (24), so that the secondary purification space (27) is divided into a sedimentation area (271) and a clear water area (272) to separate the solid particles in the mixed liquid; The water outlet is arranged in the clean water area (272), and the water inlet (12) is connected to the water outlet via a water replenishment pipeline (14) to form a liquid circulation flow channel, so that the working water in the vacuum pump (1) can be replenished.

2. The vacuum pump water recovery device according to claim 1, characterized in that: The primary separation component (24) comprises a first solid baffle (241) and a plate screen (242), wherein the upper edge of the first solid baffle (241) is flush with the upper edge of the water circulation tank (2), the lower edge of the first solid baffle (241) and the plate screen (242) are fixedly connected together and a connecting line is formed between them, and the connecting line is located below the liquid surface, the lower edge of the plate screen (242) is connected to the bottom surface of the water circulation tank (2), and the plate screen (242) has sieve holes, so that when the mixed liquid flows through the plate screen (242), the water therein flows out through the sieve holes, and the oily substance is blocked by the sieve holes.

3. The vacuum pump water recovery device according to claim 2, characterized in that: The secondary separation component (25) is a second solid baffle (251), the upper edge of the second solid baffle (251) being lower than the upper edge of the water circulation tank (2), so that water flows upward and overflows the upper edge of the second solid baffle (251) into the clean water area (272) to precipitate solid impurities, so that the water entering the clean water area (272) is purified to form purified water; the purified water enters the vacuum pump (1) as working water via the water replenishment pipeline (14).

4. The vacuum pump water recovery device according to claim 3, characterized in that: The liquid level of the clean water zone (272) is higher than the water inlet (12) of the vacuum pump (1), so that the purified water flows back to the vacuum pump (1) based on gravity.

5. The vacuum pump water recovery device according to claim 1, characterized in that: A first installation groove (22) is provided in the middle of the water circulation tank (2) along its two side walls and bottom surface, and the plane where the first installation groove (22) is located is perpendicular to the horizontal plane, so that the first-stage separation component (24) can be inserted into the first installation groove (22), so that the water circulation tank (2) is divided into a first-stage purification space (26) and a second-stage purification space (27).

6. The vacuum pump water recovery device according to claim 5, characterized in that: A second installation groove (23) is provided along the two side walls and the bottom surface of the water circulation tank (2) in the secondary purification space (27); the plane where the second installation groove (23) is located is parallel to the plane where the first installation groove (22) is located, so that the secondary separation component (25) can be inserted into the second installation groove (23), so that the secondary purification space (27) is divided into a sedimentation area (271) and a clean water area (272).

7. The vacuum pump water recovery device according to claim 1, characterized in that: The vacuum pump (1) is a water ring vacuum pump.

8. The vacuum pump water recovery device according to claim 1, characterized in that: Also includes: A base (3), wherein the water circulation tank (2) and the vacuum pump (1) are both mounted on the base (3).

9. The vacuum pump water recovery device according to claim 1, characterized in that: Also includes: An extruder (4), the extruder (4) being connected to the vacuum pump (1) via a vacuum pipeline (42), the extruder (4) being provided with an exhaust hole (41), the gas and impurities mixed in the gas being discharged from the extruder (4) via the exhaust hole (41) and flowing into the vacuum pump (1) via the vacuum pipeline (42).

10. The vacuum pump water recovery device according to claim 1, characterized in that: Also includes: A vacuum tank (5), wherein a side wall of the vacuum tank (5) is provided with an air inlet (51) and an air outlet (52), wherein the air inlet (51) is in communication with a vacuum pipeline (42), and the air outlet (52) is in communication with the vacuum pump (1); when the vacuum pump (1) is in operation, the gas and impurities mixed in the gas enter the vacuum tank (5) through the vacuum pipeline (42) via the air inlet (51), and flow out of the vacuum tank (5) from the air outlet (52) and enter the vacuum pump (1).

Images