Industrial steam utilization device

Abstract

The invention relates to the technical field of heat recovery, and discloses an industrial steam utilization device which comprises a box body, a partition plate is fixedly connected to the position, close to the top, of the inner side of the box body, heat exchange pipes are slidably arranged on the two sides of the partition plate in a sleeving mode, and round holes matched with the heat exchange pipes are formed in the two sides of the partition plate. The tops of the two heat exchange tubes penetrate through the box body and are fixedly connected with the same connecting plate, round holes matched with the heat exchange tubes are formed in the two sides of the top of the box body, through holes matched with the heat exchange tubes are formed in the two ends of the connecting plate, a strip-shaped hole is formed in the middle of the connecting plate, and a sliding strip is slidably connected into the strip-shaped hole. A square rod is fixedly connected between the two ends of the strip-shaped hole. According to the invention, the technical effects of ensuring that the interior of the heat exchange tube is not influenced by water drops, enabling steam to exchange heat with the heat exchange tube more sufficiently, reducing the problems of thermal resistance increase and heat transfer blocking caused by water drop attachment, improving the overall heat exchange efficiency, enabling heat to be transferred and utilized more efficiently and reducing energy loss are achieved.

Description

Technical Field

[0001] The invention relates to the technical field of heat recovery, and in particular to an industrial steam utilization device. Background Art

[0002] In the industrial field, steam, as a key energy medium, is widely used in various production processes, such as chemical, oil refining, thermal power, papermaking, textile and other industries. However, there is a lot of room for improvement in the energy utilization of traditional industrial steam systems. In industrial production, after the steam is heat exchanged by steam equipment, it still carries a large amount of waste heat in the form of high-temperature condensed water or low-pressure steam. This waste heat is usually discharged directly, resulting in a huge waste of energy.

[0003] In the prior art, when the heat of steam is reused, the steam is often allowed to fully contact with water through a heat exchange tube so that the water can absorb the heat of the steam. However, after the steam is cooled, part of it will condense into water droplets. If the water droplets are not discharged in time, they will absorb heat and evaporate. At the same time, it is difficult for the heat exchange tube to directly contact the steam, which affects the heat exchange between the steam and the water. For this purpose, an industrial steam utilization device is designed. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose an industrial steam utilization device.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: An industrial steam utilization device comprises a box body, wherein a partition is fixedly connected to the inner side of the box body near the top, heat exchange tubes are slidably sleeved on both sides of the partition, and circular holes matching the heat exchange tubes are opened on both sides of the partition, the tops of the two heat exchange tubes pass through the box body and are fixedly connected to the same connecting plate, circular holes matching the heat exchange tubes are opened on both sides of the top of the box body, through holes matching the heat exchange tubes are opened at both ends of the connecting plate, a strip hole is opened in the middle of the connecting plate, and a sliding bar is slidably connected in the strip hole, a square rod is fixedly connected between the two ends of the strip hole, and the square rod slidably passes through the sliding bar, and a square hole matching the square rod is opened in the middle of the sliding bar, The two sides of the top of the slide bar are fixedly connected with a U-shaped plate, and the ends of the two U-shaped plates away from each other are rotatably connected to rollers. A limiting mechanism is arranged at the top of both ends of the two slide bars, and the limiting mechanism includes a side plate fixedly connected to one end of the top of the slide bar, and a square rod is slidably sleeved on the side plate, and a square hole matching the square rod is opened on the side plate, and the end of the square rod away from the slide bar is fixedly connected with an inclined block, and the other end of the square rod is fixedly connected to the limiting plate, and a spring is sleeved on the side of the square rod close to the inclined block. Through the arrangement of the limiting mechanism and the U-shaped plate, the two baffles are opened alternately, and the elastic coefficient of the spring is small to ensure normal operation.

[0006] As a further solution of the present invention, baffles are rotatably connected to both ends of the top of the connecting plate at the through holes of the heat exchange tubes, and configuration blocks are fixedly connected to the ends of the tops of the two baffles that are close to each other.

[0007] As a further scheme of the present invention, the two heat exchange tubes are located at the top of the partition and are fixedly connected with a plurality of heat dissipation rings at equal distances on their circumferential surfaces, the two heat exchange tubes are fixedly connected with fixed plates between their bottom parts, the two fixed plates are rotatably connected with rotating rods in the middle parts, the two fixed plates are provided with circular holes matching the rotating rods in the middle parts, the two rotating rods are fixedly connected with scrapers on their circumferential surfaces at the top of the fixed plates, and the scrapers are in contact with the inner walls of the heat exchange tubes, and the bottoms of the two rotating rods are fixedly connected with second spiral leaves, and through the arrangement of the second spiral leaves, scrapers and rotating rods, etc., the inner walls of the heat exchange tubes can be scraped to prevent water droplets after liquefaction of water vapor from adhering to the inner walls of the heat exchange tubes and affecting the heat exchange capacity of the heat exchange tubes.

[0008] As a further solution of the present invention, a water pipe is fixedly sleeved in the middle of the partition, a circular hole matching the water pipe is opened in the middle of the partition, and a baffle is rotatably connected to the water pipe at the bottom of the partition via a torsion spring.

[0009] As a further solution of the present invention, an oblique air guide tube is fixedly sleeved on one side of the box body, and an air pump is serially arranged on the outside of the oblique air guide tube, the oblique air guide tube is located inside the box body and is fixedly connected to a cylinder, and three double-bend tubes are fixedly connected to the bottom of the outer wall of the cylinder at equal distances, each of the double-bend tubes is rotatably connected to a swivel joint at the bottom, each of the swivel joints is fixedly connected to a bottom tube at the bottom, and a plurality of air holes are opened on the circumferential surface of each bottom tube.

[0010] As a further solution of the present invention, each bottom tube is fixedly connected to a first gear on its circumferential surface at the top, a rotating rod is rotatably penetrated through the bottom of the cylinder, a circular hole matching the rotating rod is opened in the middle of the bottom of the cylinder, a first spiral blade is fixedly connected to the top of the rotating rod, a second gear is fixedly connected to the bottom of the rotating rod, and the second gear is meshed with the three first gears. Through the rotation of the bottom tube, the steam bubbles become smaller and the contact area with water is increased.

[0011] As a further solution of the present invention, a water supply pipe is fixedly connected to the top of the box body, and a sealing cover is screwed on the top of the water supply pipe, a U-shaped connecting pipe is fixedly connected to one side of the outer wall of the box body, and the top and bottom of the U-shaped connecting pipe are respectively located at the top and bottom of the partition, a first control valve is serially arranged on the U-shaped connecting pipe, a drain pipe is fixedly connected to the bottom of the outer wall of the box body, and a second control valve is serially installed on the drain pipe, and the arrangement of the drain pipe and the U-shaped connecting pipe, etc., facilitates the discharge of water in the middle of the box body.

[0012] The beneficial effects of the present invention are: The present invention adopts technical means such as heat exchange tubes, rotating rods, scrapers, second spiral blades, baffles, side plates, square rods, inclined blocks and U-shaped plates. The baffles on the top of the two heat exchange tubes are opened intermittently in turn, so that the rapid airflow can drive the scrapers to rotate, so as to scrape the inside of the heat exchange tubes and discharge water droplets out of the bottom of the partition, thereby ensuring that the inside of the heat exchange tubes can better receive the heat of the steam, and effectively solves the problem of water droplets liquefied from steam affecting heat exchange proposed in the background technology, and then ensures that the inside of the heat exchange tubes is not affected by water droplets, so that the steam can more fully exchange heat with the heat exchange tubes, reduce the increase in thermal resistance and the obstruction of heat transfer caused by the attachment of water droplets, thereby improving the overall heat exchange efficiency, allowing heat to be transferred and utilized more efficiently, and reducing the technical effect of energy loss.

[0013] The present invention: through the arrangement of the cylinder, the bottom pipe, the second gear, the first gear and the first spiral blade, the water just entering the box can fully contact with the water, realize the first heat exchange, and improve the absorption of steam heat. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall structure of an industrial steam utilization device proposed by the present invention; Figure 2 This is a schematic diagram of the cross-sectional structure of a box of an industrial steam utilization device proposed by the present invention; Figure 3 This is a schematic diagram of the structure of the bottom of the box of an industrial steam utilization device proposed by the present invention; Figure 4 This is a structural schematic diagram of a heat exchange tube of an industrial steam utilization device proposed by the present invention; Figure 5 This is a schematic diagram of the structure of one end of the top of a connecting plate of an industrial steam utilization device proposed by the present invention; Figure 6 An industrial steam utilization device proposed by the present invention Figure 5 A schematic diagram of the structure enlarged at A; Figure 7 This is a schematic diagram of the cross-sectional structure of a heat exchange tube of an industrial steam utilization device proposed by the present invention.

[0015] In the figure: 1, box body; 101, U-shaped connecting pipe; 102, first control valve; 103, water supply pipe; 104, partition; 105, water pipe; 2, air guide oblique pipe; 201, air pump; 3, drainage pipe; 301, second control valve; 4, cylinder; 401, double bending pipe; 402, rotating joint; 403, bottom pipe; 404, air hole; 405, first gear; 5, rotating rod; 501, first spiral leaf; 50 2. Second gear; 6. Heat exchange tube; 601. Heat dissipation ring; 7. Connecting plate; 701. Strip hole; 702. Square rod; 703. Baffle; 704. Configuration block; 8. Slide bar; 801. U-shaped plate; 802. Roller; 803. Side plate; 804. Square rod; 805. Oblique block; 806. Spring; 807. Limiting plate; 9. Fixed plate; 901. Rotating rod; 902. Scraper; 903. Second spiral blade. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0017] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0018] Reference Figure 1-Figure 7An industrial steam utilization device includes a box body 1, a partition 104 is fixedly connected to the inner side of the box body 1 near the top, heat exchange tubes 6 are slidably sleeved on both sides of the partition 104, and round holes matching the heat exchange tubes 6 are opened on both sides of the partition 104, the tops of the two heat exchange tubes 6 pass through the box body 1 and are fixedly connected to the same connecting plate 7, round holes matching the heat exchange tubes 6 are opened on both sides of the top of the box body 1, through holes matching the heat exchange tubes 6 are opened at both ends of the connecting plate 7, a strip hole 701 is opened in the middle of the connecting plate 7, and a sliding bar 8 is slidably connected in the strip hole 701, a square rod 702 is fixedly connected between the two ends of the strip hole 701, and the square rod 702 slides through the sliding bar 8, and a through hole matching the square rod 702 is opened in the middle of the sliding bar 8 Square hole, both sides of the top of the slide bar 8 are fixedly connected with U-shaped plates 801, and the ends of the two U-shaped plates 801 away from each other are rotatably connected with rollers 802. Limiting mechanisms are arranged at the tops of both ends of the two slide bars 8, and the limiting mechanisms include side plates 803 fixedly connected to one end of the top of the slide bar 8, and a square rod 804 is slidably sleeved on the side plate 803, and a square hole adapted to the square rod 804 is opened on the side plate 803. An end of the square rod 804 away from the slide bar 8 is fixedly connected with an inclined block 805, and the other end of the square rod 804 is fixedly connected with a limiting plate 807, and a spring 806 is sleeved on the side of the square rod 804 close to the inclined block 805. The two baffles 703 are intermittently opened crosswise through the back and forth movement of the limiting mechanism.

[0019] In this embodiment, both ends of the top of the connecting plate 7 are rotatably connected to the through holes of the heat exchange tube 6, and the ends of the tops of the two baffles 703 that are close to each other are fixedly connected to the configuration blocks 704. The configuration of the configuration blocks 704 ensures that the baffles 703 will be lifted up only when the steam pressure at the bottom of the partition 104 is large enough.

[0020] In this embodiment, the two heat exchange tubes 6 are located at the top of the partition 104 and are fixedly connected with multiple heat dissipation rings 601 at equal distances on their circumferential surfaces. A fixing plate 9 is fixedly connected between the bottoms of the two heat exchange tubes 6. A rotating rod 901 is rotatably connected to the middle of the two fixing plates 9. A circular hole matching the rotating rod 901 is opened in the middle of the two fixing plates 9. A scraper 902 is fixedly connected to the circumferential surfaces of the two rotating rods 901 located at the top of the fixing plate 9, and the scraper 902 fits the inner wall of the heat exchange tube 6. A second spiral leaf 903 is fixedly connected to the bottom of the two rotating rods 901. The arrangement of the rotating rod 901, the scraper 902 and the second spiral leaf 903, etc., allows the water droplets inside the heat exchange tube 6 to be cleaned in time, thereby facilitating heat exchange.

[0021] In this embodiment, a water pipe 105 is fixedly sleeved in the middle of the partition 104, and a circular hole matching the water pipe 105 is opened in the middle of the partition 104. The bottom of the partition 104 is located at the water pipe 105 and is rotatably connected to a baffle plate by a torsion spring. The setting of the baffle plate allows water on the top of the partition 104 to flow into the bottom, but the steam at the bottom cannot enter the top of the box body 1 through the water pipe 105.

[0022] In this embodiment, an air guiding oblique tube 2 is fixedly sleeved on one side of the box body 1, and an air pump 201 is serially arranged on the outside of the air guiding oblique tube 2. The air guiding oblique tube 2 is located inside the box body 1 and is fixedly connected to a cylinder 4, and three double-bend tubes 401 are fixedly connected to the bottom of the outer wall of the cylinder 4 at equal distances, and each double-bend tube 401 is rotatably connected to a swivel joint 402 at the bottom, and each swivel joint 402 is fixedly connected to a bottom tube 403 at the bottom, and each bottom tube 403 is provided with a plurality of air holes 404 on the circumferential surface.

[0023] In this embodiment, the circumferential surface of each bottom tube 403 at the top is fixedly connected to the first gear 405, a rotating rod 5 is rotatably penetrated through the bottom of the cylinder 4, and a circular hole adapted to the rotating rod 5 is opened in the middle of the bottom of the cylinder 4, a first spiral blade 501 is fixedly connected to the top of the rotating rod 5, a second gear 502 is fixedly connected to the bottom of the rotating rod 5, and the second gear 502 is meshed with the three first gears 405. The three bottom tubes 403 can be rotated by the driving of the first spiral blade 501, the second gear 502 and the first gear 405, so that when the steam contacts the water, the rotation of the bottom tube 403 can make the steam bubbles very small, which is convenient for heat exchange with the water.

[0024] In this embodiment, a water supply pipe 103 is fixedly connected to the top of the box body 1, and a sealing cover is screwed on the top of the water supply pipe 103. A U-shaped connecting pipe 101 is fixedly connected to one side of the outer wall of the box body 1, and the top and bottom of the U-shaped connecting pipe 101 are respectively located at the top and bottom of the partition 104. A first control valve 102 is serially arranged on the U-shaped connecting pipe 101, and a drain pipe 3 is fixedly connected to the bottom of the outer wall of the box body 1, and a second control valve 301 is serially installed on the drain pipe 3. The arrangement of the U-shaped connecting pipe 101 and the drain pipe 3 facilitates the discharge of water inside the box body 1, and the internal components of the box body 1 are all treated with rust prevention.

[0025] Working principle: When in use, add cold water through the water adding pipe 103. When the water volume at the top of the partition 104 reaches the highest, it flows into the bottom of the box body 1 through the water guide pipe 105. Under the action of water gravity, the shielding plate at the bottom of the water guide pipe 105 will automatically open until there is an appropriate amount of water at the bottom of the box body 1. The steam is poured into the inside of the box body 1 through the air guide inclined pipe 2 and reaches the cylinder 4, which will drive the first spiral blade 501 to rotate, and then reach the three bottom pipes 403, and be discharged through multiple air holes 404 to fully contact with water. When the first spiral blade 501 rotates, the Rongguo rotating rod 5 and the second gear 502 cause the three first gears 405 to rotate, so that the three bottom pipes 403 rotates accordingly, and when the steam contacts the water, it will be dispersed, making it easier for the water to absorb the temperature of the steam. When the steam emerges from the water, it will be located at the bottom of the partition 104. In the early stage of use, one end of the slide bar 8 is close to one side of the strip hole 701. As the steam opens more and more, it enters the heat exchange tube 6, causing the heat dissipation ring 601 to absorb heat and transfer it to the water at the top of the partition 104 to achieve heat transfer. When the pressure at the bottom of the partition 104 is large enough, one of the baffles 703 without the inclined block 805 on the top will be lifted up. At this time, the flow rate of the gas discharged in the heat exchange tube 6 is very fast, causing the second spiral blade 903 at this location to rotate rapidly, thereby causing the scraper 902 to heat the exchange tube 6. The inside of the heat pipe 6 is scraped to scrape the water droplets generated by the heat exchange between the steam and the inner wall of the heat exchange tube 6 and flow to the bottom to avoid the influence of the heat exchange between the heat exchange tube 6 and the steam due to too many water droplets. At the same time, the water droplets absorb heat and evaporate, absorbing the heat of the steam. When the baffle 703 at this place is lifted up by the steam, it will contact the roller 802 at the top, so that the whole slide bar 8 with the upper parts slides along the strip hole 701 to approach the lifted baffle 703. When the steam at the bottom of the partition 104 is smaller, the baffle 703 will automatically close. At this time, due to the movement of the slide bar 8, the inclined block 805 at this place is close to the baffle 703. When the baffle 703 is reset, due to the spring The elastic coefficient of 806 is small, so that the inclined block 805 will shrink quickly under the action of the inclined surface, causing the baffle 703 to close. At this time, the steam at the bottom of the partition 104 will gradually increase. At this time, the baffle 703 on the top of the other heat exchange tube 6 will not be restricted by the inclined block 805 on the same side and can be lifted up by the steam. In this way, the baffles 703 on the top of the two heat exchange tubes 6 are opened in turn, and the scraper 902 is driven to rotate in conjunction with the rapid airflow, driving the scraper 902 to scrape the water droplets inside the heat exchange tube 6 to ensure the heat exchange efficiency of the steam. When the water temperature inside the box 1 is extremely high, the water inside the box 1 can be completely discharged through the discharge of the second control valve 301 and the first control valve 102.

[0026] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0027] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0028] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein, for example. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0029] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An industrial steam utilization device, comprising a housing (1), characterized in that: A partition (104) is fixedly connected to the inner side of the box body (1) near the top, and heat exchange tubes (6) are slidably sleeved on both sides of the partition (104), and circular holes matching the heat exchange tubes (6) are opened on both sides of the partition (104), and the tops of the two heat exchange tubes (6) pass through the box body (1) and are fixedly connected to the same connecting plate (7), and circular holes matching the heat exchange tubes (6) are opened on both sides of the top of the box body (1), and through holes matching the heat exchange tubes (6) are opened at both ends of the connecting plate (7), and a strip hole (701) is opened in the middle of the connecting plate (7), and a sliding bar (8) is slidably connected in the strip hole (701), and a square rod (702) is fixedly connected between the two ends of the strip hole (701), and the square rod (702) slidably passes through the sliding bar (8), and the middle of the sliding bar (8) is opened The square hole is matched with the square rod (702), both sides of the top of the slide bar (8) are fixedly connected with U-shaped plates (801), and the ends of the two U-shaped plates (801) away from each other are rotatably connected with rollers (802), and limiting mechanisms are arranged at the tops of both ends of the two slide bars (8), and the limiting mechanisms include a side plate (803) fixedly connected to one end of the top of the slide bar (8), and a square rod (804) is slidably sleeved on the side plate (803), and a square hole matched with the square rod (804) is opened on the side plate (803), and the end of the square rod (804) away from the slide bar (8) is fixedly connected with an inclined block (805), and the other end of the square rod (804) is fixedly connected with a limiting plate (807), and a spring (806) is sleeved on the side of the square rod (804) close to the inclined block (805).

2. The industrial steam utilization device according to claim 1, characterized in that: Both ends of the top of the connection plate (7) are rotatably connected to baffles (703) at the through holes of the heat exchange tube (6), and the ends of the tops of the two baffles (703) that are close to each other are fixedly connected to configuration blocks (704).

3. The industrial steam utilization device according to claim 1, characterized in that: The two heat exchange tubes (6) are fixedly connected to a plurality of heat dissipation rings (601) at equal distances on the circumferential surface at the top of the partition (104), a fixing plate (9) is fixedly connected between the bottoms of the two heat exchange tubes (6), a rotating rod (901) is rotatably connected to the middle of the two fixing plates (9), a circular hole matching the rotating rod (901) is opened in the middle of the two fixing plates (9), a scraper (902) is fixedly connected to the circumferential surface of the two rotating rods (901) at the top of the fixing plates (9), and the scraper (902) is in contact with the inner wall of the heat exchange tube (6), and a second spiral blade (903) is fixedly connected to the bottom of the two rotating rods (901).

4. The industrial steam utilization device according to claim 1, characterized in that: A water pipe (105) is fixedly sleeved in the middle of the partition (104), a circular hole matching the water pipe (105) is opened in the middle of the partition (104), and a shielding plate is rotatably connected to the water pipe (105) at the bottom of the partition (104) via a torsion spring.

5. The industrial steam utilization device according to claim 1, characterized in that: An air guide oblique tube (2) is fixedly sleeved on one side of the box body (1), and an air pump (201) is serially arranged outside the air guide oblique tube (2). The air guide oblique tube (2) is located inside the box body (1) and is fixedly connected to a cylinder (4), and three double-bend tubes (401) are fixedly connected to the bottom of the outer wall of the cylinder (4) at equal distances. The bottom of each double-bend tube (401) is rotatably connected to a rotating joint (402), and the bottom of each rotating joint (402) is fixedly connected to a bottom tube (403), and a plurality of air holes (404) are opened on the circumferential surface of each bottom tube (403).

6. The industrial steam utilization device according to claim 5, characterized in that: The circumferential surface of each bottom tube (403) at the top is fixedly connected to a first gear (405); a rotating rod (5) is rotatably penetrated through the bottom of the cylinder (4); a circular hole matching the rotating rod (5) is opened in the middle of the bottom of the cylinder (4); a first spiral blade (501) is fixedly connected to the top of the rotating rod (5); a second gear (502) is fixedly connected to the bottom of the rotating rod (5); and the second gear (502) is meshed with the three first gears (405).

7. The industrial steam utilization device according to claim 1, characterized in that: The top of the box body (1) is fixedly connected to a water supply pipe (103), and a sealing cover is screwed to the top of the water supply pipe (103); one side of the outer wall of the box body (1) is fixedly connected to a U-shaped connecting pipe (101), and the top and bottom of the U-shaped connecting pipe (101) are respectively located at the top and bottom of the partition (104); a first control valve (102) is serially mounted on the U-shaped connecting pipe (101); and the bottom of the outer wall of the box body (1) is fixedly connected to a drainage pipe (3), and a second control valve (301) is serially mounted on the drainage pipe (3).

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