A circulating water tank for a vacuum pumping station

Abstract

The utility model discloses a circulating water tank for vacuum pump station, including box, heat exchanger and circulating component, the inside of box is provided with baffle, and the inside of box is divided into backwater area and water supply area with baffle, and the box is provided with water supply pipeline, inlet pipeline, backwater area drain pipe and water supply area drain pipe, and water supply pipeline communicates with water supply area, and inlet pipeline communicates with backwater area, and backwater area drain pipe communicates with backwater area, and water supply area drain pipe communicates with water supply area, and heat exchanger is provided with cooling medium inlet pipeline, cooling medium return pipeline, circulating water inlet pipeline and backwater pipeline after heat exchange, and circulating component includes the circulating backwater pipeline of setting in the box, circulating water pump, circulating outlet pipeline, three -way valve, and the first interface of three -way valve communicates with circulating outlet pipeline, and the second interface of three -way valve communicates with circulating water inlet pipeline. The utility model discloses a circulating water tank solves the technical problem that current vacuum pump station cannot change water in machine, and is difficult to clean the impurity in pipe.

Description

Technical Field

[0001] This utility model relates to the field of circulating water tank technology, and specifically to a circulating water tank for a vacuum pump station. Background Technology

[0002] With the rapid development of the polyester industry, my country's recycled polyester chip production has reached a considerable scale. Currently, recycled polyester chip production mainly uses a vacuum pump station with an air compressor and a circulating water pump to maintain a high vacuum in the reactor. The circulating water pump is connected to a circulating water tank, and the water in the circulating water tank exchanges heat through a heat exchanger, which then cools the vacuum pump station. As the material is heated and volatilizes, the small organic molecules in the reactor enter the circulating water tank. As the small organic molecules accumulate in the circulating water tank and related pipes, organic impurities eventually precipitate and clog the heat exchanger, causing the circulating water temperature to rise and making it impossible to cool the vacuum pump station.

[0003] Current technology involves installing a filter upstream of the heat exchanger. However, as impurities accumulate in the filter, they still enter the pipeline. Over time, this leads to decreased heat exchange efficiency, vacuum pump station shutdowns, equipment parameter fluctuations, and a decline in product quality. At this point, it is necessary to shut down the machine to replace the filter and clean the impurities in the pipes, making it impossible to change the water immediately afterward. This results in frequent shutdowns and cumbersome cleaning. Furthermore, the existing technology uses a single-structure water tank, which cannot supply water to the vacuum pump during cleaning. Therefore, a new technical solution is urgently needed to address at least one of these problems. Summary of the Invention

[0004] In view of the above shortcomings, the purpose of this utility model is to provide a circulating water tank for a vacuum pump station, which solves the technical problems of existing vacuum pump stations being unable to change water during operation and having difficulty cleaning impurities inside the pipes.

[0005] To achieve the above-mentioned technical objectives and meet the above-mentioned technical requirements, the technical solution adopted by this utility model is as follows:

[0006] A circulating water tank for a vacuum pump station, characterized in that it comprises:

[0007] The container has an internal partition that divides the interior of the container into a return water area and a supply water area. The container is equipped with a supply water pipe, an inlet water pipe, a return water area drainage pipe, and a supply water area drainage pipe. The supply water pipe is connected to the supply water area, the inlet water pipe is connected to the return water area, the return water area drainage pipe is connected to the return water area, and the supply water area drainage pipe is connected to the supply water area.

[0008] The heat exchanger is provided with a cooling medium inlet pipe, a cooling medium return pipe, a circulating water inlet pipe, and a heat exchange return water pipe, wherein the heat exchange return water pipe is connected to the water supply area.

[0009] The circulation assembly includes a circulation return water pipe disposed in the housing, a circulation water pump connected to the circulation return water pipe, a circulation outlet water pipe connected to the circulation water pump, and a three-way valve. The first port of the three-way valve is connected to the circulation outlet water pipe, the second port of the three-way valve is connected to the circulation water inlet pipe, and the circulation outlet water pipe is equipped with a filter.

[0010] As a preferred technical solution, a cover plate is provided on the top of the partition.

[0011] As a preferred technical solution, the top of the box is provided with a box cover.

[0012] As a preferred technical solution, a butterfly valve is provided at the third port of the three-way valve.

[0013] As a preferred technical solution, a drainage pump is installed at the inlet of the drainage pipe in the return water area.

[0014] As a preferred technical solution, a level gauge for monitoring the liquid level in the water supply area is provided on one side of the tank.

[0015] As a preferred technical solution, the upper surface of the cover plate is lower than the upper surface of the box body.

[0016] As a preferred technical solution, the box cover is provided with an exhaust hole that runs vertically through it.

[0017] As a preferred technical solution, the circulating return water pipe is equipped with a first ball valve, and the circulating outlet water pipe is equipped with a second ball valve.

[0018] As a preferred technical solution, a handle is provided on the upper surface of the cover plate.

[0019] Compared with traditional technical solutions, the beneficial effects of this utility model are:

[0020] 1) The water tank is divided into a return water area and a supply water area by a partition. In this way, the water in the return water area is stored in the supply water area after heat exchange, so that it can be sent to the vacuum pump station. The return water and supply water are combined into one tank. A three-way valve is installed to connect to the pure water source. When the quality of the circulating water deteriorates, pure water is introduced to flush the circulating return water pipe and the circulating outlet water pipe. Then, sewage is discharged through the drainage pipe of the return water area. This solves the technical problems of existing vacuum pump stations being unable to change water on the machine and having difficulty cleaning impurities in the pipes.

[0021] 2) The cover plate prevents water from overflowing from the water supply area into the return water area. It has a simple and practical structure and a good separation effect.

[0022] 3) The level gauge facilitates staff monitoring the water level in the water supply area;

[0023] 4) The handle makes it easy for staff to open the cover. Attached Figure Description

[0024] Figure 1 This is a structural diagram of a circulating water tank provided in one embodiment of the present invention.

[0025] exist Figure 1 Components: 1. Housing; 101. Partition; 102. Return water zone; 2. Water supply pipe; 3. Inlet pipe; 4. Drainage pipe for return water zone; 5. Drainage pipe for water supply zone; 6. Heat exchanger; 7. Cooling medium inlet pipe; 8. Cooling medium return pipe; 9. Circulating water inlet pipe; 10. Return water pipe after heat exchange; 11. Circulating return water pipe; 12. Circulating water pump; 13. Circulating water outlet pipe; 14. Three-way valve; 15. Filter; 16. Cover plate; 17. Butterfly valve; 18. Drain pump; 19. Pure water pipe; 20. Tank cover; 2001. Exhaust port; 21. First ball valve; 22. Second ball valve; 23. Level gauge; 24. Handle; 25. Pressure gauge. Detailed Implementation

[0026] The present invention will now be further described with reference to the accompanying drawings.

[0027] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "top," "bottom," "left," "right," "front," "rear," "inner," and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0028] Please refer to Figure 1This utility model provides a circulating water tank for a vacuum pump station, comprising a tank body 1, a heat exchanger 6, and a circulation assembly. A vertical partition 101 is provided inside the tank body 1, dividing the interior of the tank body 1 into a return water zone 102 and a supply water zone (not shown). The tank body 1 is provided with a supply water pipe 2, an inlet water pipe 3, a return water zone drainage pipe 4, and a supply water zone drainage pipe 5. The supply water pipe 2 is connected to the supply water zone, and the inlet water pipe 3 is connected to the return water zone 102. The return water area drainage pipe 4 is connected to the return water area 102, and the supply water area drainage pipe 5 is connected to the supply water area. The heat exchanger 6 is provided with a cooling medium inlet pipe 7, a cooling medium return pipe 8, a circulating water inlet pipe 9, and a heat exchange return water pipe 10. The heat exchange return water pipe 10 is connected to the supply water area. The circulation component includes a circulating return water pipe 11 disposed in the housing 1, a circulating water pump 12 connected to the circulating return water pipe 11, and a circulating water pump 12 connected to the circulating water pump 12. A water outlet pipe 13 and a three-way valve 14 are connected. The first port of the three-way valve 14 is connected to the circulating water outlet pipe 13, and the second port of the three-way valve 14 is connected to the circulating water inlet pipe 9. The circulating water outlet pipe 13 is equipped with a filter 15. The water inlet pipe 3 is connected to a water source. A partition 101 divides the water tank into a return water zone 102 and a supply water zone. Water enters the return water zone 102 from the inlet pipe 3. The circulating water pump 12 draws the water from the return water zone 102 to the heat exchanger 6. After heat exchange in the heat exchanger 6, the water is stored. Within the water supply area, a three-way valve 14 is installed to connect to the pure water source so that the water supply pipe 2 can lead to the vacuum pump station. When the quality of the circulating water deteriorates, pure water can be introduced to flush the circulating water outlet pipe 13, filter 15, and circulating water return pipe 11, flushing the sewage into the return water area 102. Then, the sewage is discharged through the return water area drainage pipe 4, and some pure water can enter the water supply area for water exchange and continue to supply water to the vacuum pump station. This solves the technical problems of existing vacuum pump stations being unable to exchange water on-site and having difficulty cleaning impurities in the pipes.

[0029] One end of the circulating return water pipe 11 is designed to extend into the bottom of the return water zone 102, which provides a good suction effect and makes full use of the water inside the return water zone 102.

[0030] like Figure 1 As shown, a cover plate 16 is provided on the top of the partition 101. The cover plate 16 prevents water from overflowing from the water supply area into the water return area 102. The structure is simple and practical, and the separation effect is good. The cover plate 16 is hinged to the partition 101, or a step (not shown) is provided inside the box 1. The cover plate 16 is directly mounted on the partition 101 and the step. The partition 101 is welded to the inner wall of the box 1, or a slot is provided on the inner wall of the box 1 for insertion. Further details are omitted.

[0031] like Figure 1As shown, the filter 15 can filter impurities in the circulating water. Preferably, a pressure gauge 25 is installed between the filter 15 and the circulating water pump 12 to monitor the pressure and determine whether the filter 15 is clogged.

[0032] like Figure 1 As shown, the circulating return water pipe 11 is equipped with a first ball valve 21, and the circulating water outlet pipe 13 is equipped with a second ball valve 22, which can control the flow of water.

[0033] like Figure 1 As shown, the top of the box body 1 is provided with a box cover 20, which can be opened and closed. The box cover 20 is hinged to the box body 1 or directly rests on the top of the box body 1. The box cover 20 can prevent impurities in the air from contaminating the water quality of the return water area 102. Furthermore, the box cover 20 is provided with an exhaust hole 2001 that runs vertically through it to facilitate the discharge of gas in the return water area 102.

[0034] like Figure 1 As shown, a butterfly valve 17 is provided at the third port of the three-way valve 14. The butterfly valve 17 is connected to the pure water pipeline 19, which is connected to the pure water source. When the pressure gauge 15 shows that the filter 15 is blocked, the circulating water pump 12 is turned off, and the pure water pipeline 19 is connected to pure water. The pure water flushes the circulating water outlet pipeline 13, the filter 15, and the circulating water return pipeline 11. At the same time, the pure water enters the water supply area through the heat exchanger 6, so that there is enough water in the water supply area to supply the vacuum pump station and realize in-machine water exchange. The butterfly valve 17 can adjust the flow rate and control the entry and exit of pure water.

[0035] like Figure 1 As shown, due to the presence of filter 15, when filter 15 becomes clogged, impurities generally accumulate in the circulating water outlet pipe 13, filter 15, and circulating water return pipe 11. However, a small amount of impurities may still enter the heat exchanger 6. When it is necessary to clean the impurities in the heat exchanger 6, the water supply is stopped, the second ball valve 22 is closed, and the pure water pipe 19 is connected to the pure water flushing circulating water inlet pipe 9, heat exchanger 6, and heat exchange return water pipe 10 to flush the impurities. The impurities enter the water supply area to settle. The water supply area drain pipe 5 is located at the bottom of the water supply area. The water supply and drain pipe 5 is generally equipped with a valve to control the opening and closing degree. The water supply and drain pipe 5 is opened to discharge sewage. Although this situation also requires shutdown, the number of shutdowns is significantly reduced compared to the original technical solution.

[0036] like Figure 1 As shown, the drain pipe 4 in the return water area is equipped with a drain pump 18 to facilitate rapid sewage discharge.

[0037] like Figure 1 As shown, a level gauge 23 for monitoring the water level in the water supply area is provided on one side of the tank 1. The level gauge 23 facilitates the staff to monitor the water level in the water supply area. A temperature sensor can also be installed in the tank 1 to sense the water temperature in the water supply area.

[0038] like Figure 1 As shown, the upper surface of the cover plate 16 is lower than the upper surface of the box body 1, and the inlet of the water inlet pipe 3 is located above the cover plate 16. The cover plate 16 and the box body 1 form a flow space, allowing water to flow into the water supply area.

[0039] like Figure 1 As shown, a handle 24 is provided on the upper surface of the cover plate 16. The cover plate 16 is hinged to the cover plate 16, and the cover plate 16 can be opened and closed. The handle 24 makes it easy for staff to open and close the cover plate 16 so as to observe and clean the water supply area.

[0040] Any numerical values ​​cited herein include all values ​​ranging from a lower limit to an upper limit, increasing by one unit, with at least two units between any lower and any higher value. For example, if the quantity of a component or the value of a process variable (e.g., temperature, pressure, time, etc.) is described as being from 1 to 90, preferably from 20 to 80, more preferably from 30 to 70, the purpose is to illustrate that values ​​such as 15 to 85, 22 to 68, 43 to 51, 30 to 32 are also explicitly listed in this specification. For values ​​less than 1, a unit is appropriately considered to be 0.0001, 0.001, 0.01, 0.1, etc. These are merely examples intended for explicit expression, and it can be assumed that all possible combinations of values ​​listed between the minimum and maximum values ​​are explicitly described in this specification in a similar manner.

[0041] Unless otherwise stated, all ranges include the endpoints and all numbers between them. The terms "approximately" or "about" used with ranges apply to both endpoints of the range. Thus, "approximately 20 to 30" is intended to cover "approximately 20 to approximately 30," including at least the specified endpoints.

[0042] All articles and references disclosed herein, including patent applications and publications, are incorporated herein by reference for various purposes. The term “substantially constitutes…” used to describe a combination should include the identified elements, components, parts, or steps, as well as other elements, components, parts, or steps that do not substantially affect the essential novelty of the combination. The use of the terms “comprising” or “including” to describe combinations of elements, components, parts, or steps herein also contemplates embodiments substantially constituted by such elements, components, parts, or steps. The use of the term “may” herein is intended to indicate that any described attribute included by “may” is optional.

[0043] Multiple elements, components, parts, or steps can be provided by a single integrated element, component, part, or step. Alternatively, a single integrated element, component, part, or step can be divided into multiple separate elements, components, parts, or steps. The use of "a" or "an" to describe an element, component, part, or step does not imply the exclusion of other elements, components, parts, or steps.

[0044] It should be understood that the above description is for illustrative purposes and not for limitation. Many embodiments and applications beyond the provided examples will be apparent to those skilled in the art upon reading the above description. Therefore, the scope of this teaching should not be determined by reference to the above description, but rather by reference to the appended claims and the full scope of their equivalents. For purposes of completeness, all articles and references, including patent applications and publications, are incorporated herein by reference. The omission of any aspect of the subject matter disclosed herein in the preceding claims is not intended as a waiver of that subject matter, nor should it be construed as an indication that the inventors have not considered that subject matter as part of the disclosed utility model subject matter.

Claims

1. A circulating water tank for a vacuum pump station, characterized in that, include: The container has an internal partition that divides the interior of the container into a return water area and a supply water area. The container is equipped with a supply water pipe, an inlet water pipe, a return water area drainage pipe, and a supply water area drainage pipe. The supply water pipe is connected to the supply water area, the inlet water pipe is connected to the return water area, the return water area drainage pipe is connected to the return water area, and the supply water area drainage pipe is connected to the supply water area. The heat exchanger is provided with a cooling medium inlet pipe, a cooling medium return pipe, a circulating water inlet pipe, and a heat exchange return water pipe, wherein the heat exchange return water pipe is connected to the water supply area. The circulation assembly includes a circulation return water pipe disposed in the housing, a circulation water pump connected to the circulation return water pipe, a circulation outlet water pipe connected to the circulation water pump, and a three-way valve. The first port of the three-way valve is connected to the circulation outlet water pipe, the second port of the three-way valve is connected to the circulation water inlet pipe, and the circulation outlet water pipe is equipped with a filter.

2. A circulating water tank for a vacuum pump station according to claim 1, characterized in that, The top of the partition is provided with a cover plate.

3. A circulating water tank for a vacuum pump station according to claim 1, characterized in that, The top of the box is equipped with a box cover.

4. A circulating water tank for a vacuum pump station according to claim 1, characterized in that, A butterfly valve is installed at the third port of the three-way valve.

5. A circulating water tank for a vacuum pump station according to claim 1, characterized in that, A drainage pump is installed at the inlet of the drainage pipe in the return water area.

6. A circulating water tank for a vacuum pump station according to claim 1, characterized in that, A level gauge for monitoring the water level in the water supply area is installed on one side of the tank.

7. A circulating water tank for a vacuum pump station according to claim 2, characterized in that, The upper surface of the cover plate is lower than the upper surface of the box body.

8. A circulating water tank for a vacuum pump station according to claim 3, characterized in that, The lid is provided with an exhaust hole that runs vertically through it.

9. A circulating water tank for a vacuum pump station according to claim 1, characterized in that, The circulating return water pipe is equipped with a first ball valve, and the circulating outlet water pipe is equipped with a second ball valve.

10. A circulating water tank for a vacuum pump station according to claim 7, characterized in that, A handle is provided on the upper surface of the cover plate.

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