Circulating cooling water descaling device for circulating water station

Abstract

The utility model relates to a circulating cooling water descaling device for a circulating water station, which comprises a front water pump, a rear water pump and two groups of descaling boxes, the top of each descaling box is open and is abutted against a liftable cover plate, a first partition plate is arranged on the left side of the bottom in each descaling box, and a second partition plate is arranged on the right side of the bottom in each descaling box. A folding filter element is detachably arranged at the position, between the left side of the descaling box and the first partition plate, of the bottom of the cover plate, the top of the folding filter element is closed, the bottom of the folding filter element is open, and the folding filter element abuts against the inner bottom of the descaling box. The bottom of the descaling box corresponding to the inner side of the folding filter element is communicated with the bottom of the descaling box between the first partition plate and the second partition plate through a U-shaped conveying pipe, supporting net cages are detachably arranged at the bottoms of the cover plates on the left side and the right side of the second partition plate, the supporting net cages abut against the corresponding first partition plate, the corresponding second partition plate and the inner wall of the descaling box, and resin filter elements are arranged in the supporting net cages. According to the utility model, the physical modes of refined filtration and ion exchange are adopted for descaling, so that the device is more environment-friendly and practical.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of scale removal technology, and particularly relates to a circulating water station circulating cooling water scale removal device. BACKGROUND

[0002] ‌The circulating cooling water station is an important component of a circulating cooling water heat exchange system, mainly re-cools the cooling water with increased temperature after heat exchange through a cooling tower and the like, and sends the cooling water back to the system for circulation. At present, the circulating cooling water system often has the problem of scale formation after running for a period of time, and the existing conventional scale removal methods mostly adopt a chemical scale removal method, that is, adding a suitable type of chemical scale removal agent to the water body to remove scale. Although the scale inhibition rate is high, secondary pollution is easily caused, and improvement is needed. CONTENT OF THE UTILITY MODEL

[0003] Therefore, the utility model aims to provide a circulating water station circulating cooling water scale removal device which adopts a physical method of precision filtration and ion exchange to remove scale, so as to solve the above problems.

[0004] To achieve the above object, the utility model adopts the technical scheme of a circulating water station circulating cooling water scale removal device, which comprises a front water pump, a rear water pump and two groups of scale removal boxes. The top of each scale removal box is open and abuts against a cover plate which is arranged to be liftable. A first partition plate is fixed to the left side of the inner bottom of each scale removal box, and a second partition plate is fixed to the right side of the inner bottom of each scale removal box. The top end of the first partition plate abuts against the cover plate, and a gap is left between the top end of the second partition plate and the cover plate. A folding filter element is detachably arranged on the bottom of the cover plate between the left side wall of each scale removal box and the first partition plate. The top of the folding filter element is closed, the bottom is open and abuts against the inner bottom of each scale removal box. The bottom of each scale removal box is communicated with the bottom of the scale removal box between the first partition plate and the second partition plate through a U-shaped conveying pipe on the inner side of the folding filter element. A support net box is detachably arranged on the bottom of the cover plate on the left and right sides of the second partition plate. The support net box abuts against the corresponding first partition plate, second partition plate and inner wall of the scale removal box. A resin filter element is filled in the support net box. A water inlet pipe is communicated with the upper left side of each scale removal box. The water inlet pipes of the two scale removal boxes are connected in parallel at the water outlet of the front water pump. A water outlet pipe is communicated with the lower right side of each scale removal box. The water outlet pipes of the two scale removal boxes are connected in parallel at the water inlet of the rear water pump. Control valves are arranged on the water inlet pipe and the water outlet pipe.

[0005] Preferably, a first hydraulic cylinder is vertically fixed and arranged on each of the left and right outer sides of each scale removal box. The piston rod of the first hydraulic cylinder faces upwards and is fixedly connected with the bottom of the cover plate.

[0006] Preferably, the folding filter element and the supporting net box are both provided with an inverted U-shaped mounting seat on the top of the corresponding cover plate, a second hydraulic cylinder is fixed on the top of the cover plate at the rear side of the mounting seat, the piston rod of the second hydraulic cylinder is forwardly fixedly connected with a movable plate, a limiting rod is fixed on the front side of the movable plate, first through holes are formed in the two vertical parts of the corresponding mounting seat of the limiting rod, mounting plates are vertically fixed on the outer top of the folding filter element and the supporting net box, second through holes are formed in the upper part of the mounting plate, mounting grooves are formed in the corresponding cover plate of the mounting plate in penetration, the mounting plate is inserted in the corresponding mounting seat in penetration, the second through hole is aligned with the corresponding first through hole, the movable plate is abutted on the vertical part at the rear side of the corresponding mounting seat, and the limiting rod penetrates the corresponding first through hole and the second through hole to the front side of the mounting seat.

[0007] Preferably, a sliding block is fixed on the bottom of the movable plate, and an adaptive sliding groove is formed in the top of the corresponding cover plate in the front-rear direction, and the sliding block is slidingly arranged on the corresponding sliding groove.

[0008] Preferably, a sealing gasket is fixed on the bottom of the cover plate.

[0009] Preferably, a sewage pipe with a sewage valve is communicated with the left lower part of the descaling box.

[0010] The beneficial effects of this utility model are as follows: When in use, the inlet of the pre-pump is connected to the outlet of the cooling tower of the existing circulating water cooling station, and the outlet of the post-pump is connected to the inlet of the existing heat exchange system. This allows the circulating cooling water to flow through the descaling tank before entering the heat exchange system, and the water is effectively descaled by the descaling tank before being used for heat exchange. The parallel arrangement of two descaling tanks, along with corresponding inlet and outlet pipes and control valves, allows for a standby configuration. This means that the control valves on the inlet and outlet pipes can ensure that circulating cooling water flows through only one descaling tank at a time. When maintenance is required, the control valves can be used to switch to the other descaling tank, allowing maintenance without shutting down the system. Furthermore, the fit between the cover and the descaling tank, its adjustable height, the detachable connection between the pleated filter element and the cover, and the detachable connection between the support mesh box and the cover facilitate cleaning the inside of the descaling tank and individual replacement of the pleated and resin filter elements, ensuring subsequent descaling quality. Overall, the system is more flexible, convenient, and practical. During the actual descaling process, driven by the pre-pump and post-pump, the circulating cooling water first enters the left side of the first baffle and passes through the pleated filter element from the outside to the inside. This utilizes the characteristics of the pleated filter element to achieve preliminary fine filtration of the circulating cooling water, effectively removing suspended particles, rust, and other impurities, thus reducing scale formation. Next, the circulating cooling water entering the inside of the pleated filter element flows in an S-shaped trajectory through two sets of support mesh boxes, coordinated with the delivery pipe and the second baffle. This allows the resin filter elements in the two sets of support mesh boxes to perform two separate ion exchange treatments on the circulating cooling water. This flow effectively extends the residence time of the circulating cooling water in the descaling tank, allowing for more thorough ion exchange with the resin filter elements, effectively removing calcium and magnesium ions, softening the water, and preventing scale formation. Therefore, this physical descaling method combining fine filtration and ion exchange ensures effective descaling while avoiding secondary pollution, making it more environmentally friendly and practical. Attached Figure Description

[0011] Fig. 1 This is a schematic diagram of the main structure of this utility model;

[0012] Fig. 2 This is a schematic diagram of the main structure of the descaling box of this utility model;

[0013] Fig. 3 This is a schematic diagram of the left side of the descaling box of this utility model;

[0014] Fig. 4 This is a schematic diagram of the descaling box of this utility model from the right side.

[0015] Fig. 5It is the left view structure schematic diagram of the cover plate of the utility model;

[0016] Fig. 6 It is the left view structure schematic diagram of the folding filter element of the utility model.

[0017] The figure mark: 1 is front water pump, 2 is rear water pump, 3 is descaling box, 4 is cover plate, 5 is first baffle, 6 is second baffle, 7 is folding filter element, 8 is conveying pipe, 9 is support net box, 10 is resin filter element, 11 is water inlet pipe, 12 is water outlet pipe, 13 is control valve, 14 is first hydraulic cylinder, 15 is mounting seat, 16 is second hydraulic cylinder, 17 is movable plate, 18 is limit rod, 19 is first through hole, 20 is mounting plate, 21 is second through hole, 22 is mounting groove, 23 is sliding block, 24 is sliding slot, 25 is sealing gasket, 26 is blowdown valve, 27 is blowdown pipe. DETAILED DESCRIPTION

[0018] The utility model will be further described in detail below in combination with the drawings and specific embodiment:

[0019] As Figs. 1 to 6 Shown, a circulating water station circulating cooling water descaling device, including front water pump 1, rear water pump 2 and two groups of descaling box 3, and the top of descaling box 3 is open and abuts with the cover plate 4 that can be lifted and set, and the inner bottom of descaling box 3 is fixed with first baffle 5 on the left side, and second baffle 6 is fixed on the right side, and the top of first baffle 5 and the cover plate 4 abut, and the top of second baffle 6 and the cover plate 4 have a gap. The bottom of cover plate 4 between the left side wall of descaling box 3 and first baffle 5 is detachably provided with folding filter element 7, and the top of folding filter element 7 is closed, and the bottom is open and abuts on the inner bottom of descaling box 3, and the bottom of descaling box 3 inside corresponding folding filter element 7 is communicated with the bottom of descaling box 3 between first baffle 5 and second baffle 6 through a U-shaped conveying pipe 8. The bottom of cover plate 4 on the left and right sides of second baffle 6 is detachably provided with support net box 9, and the support net box 9 abuts against corresponding first baffle 5, second baffle 6 and the inner wall of descaling box 3, and the support net box 9 is filled with resin filter element 10. The left upper portion of descaling box 3 is communicated with water inlet pipe 11, and the water inlet pipe 11 of two descaling boxes 3 is connected in parallel at the water outlet of front water pump 1, and the right lower portion of descaling box 3 is communicated with water outlet pipe 12, and the water outlet pipe 12 of two descaling boxes 3 is connected in parallel at the water inlet of rear water pump 2, and control valve 13 is arranged on water inlet pipe 11 and water outlet pipe 12;

[0020] In use, the water inlet of the front water pump 1 is communicated with the water outlet of the cooling tower of the existing circulating water cooling station, and the water outlet of the rear water pump 2 is communicated with the water inlet of the existing heat exchange system, so that the circulating cooling water can flow through the descaling box 3 before entering the heat exchange system, and the water body is effectively descaled by the descaling box 3 before heat exchange. The parallel arrangement of the two descaling boxes 3 cooperates with the corresponding water inlet pipe 11, water outlet pipe 12 and control valve 13 to form a one-use and one-back-up use mode, that is, the circulating cooling water can only flow through one of the two descaling boxes 3 at the same time by controlling the control valve 13 on the corresponding water inlet pipe 11 and water outlet pipe 12. When the descaling box 3 needs to be maintained, the other descaling box 3 can be used by controlling the on-off of the corresponding pipeline by the control valve 13, so that the descaling box 3 can be maintained without stopping. When maintaining, the abutment of the cover plate 4 and the descaling box 3, the detachable connection between the folding filter element 7 and the cover plate 4, and the detachable connection between the support net box 9 and the cover plate 4 are more conducive to cleaning the inside of the descaling box 3 and separately disassembling and replacing the folding filter element 7 and the resin filter element 10, so as to ensure the subsequent descaling quality, and the whole use is more flexible, convenient and practical. When descaling, the circulating cooling water can first enter the left side of the first partition plate 5 and pass through the folding filter element 7 from outside to inside under the drive of the front water pump 1 and the rear water pump 2, so that the circulating cooling water can be preliminarily filtered by the folding filter element 7, which can effectively remove suspended particles, rust and other impurities in the water body, thereby reducing the formation of scale. Then, the circulating cooling water in the inside of the folding filter element 7 can flow through the two groups of support net boxes 9 in S-shaped flow trajectory under the cooperation of the conveying pipe 8 and the second partition plate 6, so that the circulating cooling water can be ion exchanged by the resin filter elements 10 in the two groups of support net boxes 9, and the flow can effectively prolong the residence time of the circulating cooling water in the descaling box 3, so that the ion exchange with the resin filter element 10 is more sufficient, and the calcium and magnesium ions in the water body can be more effectively removed, thereby softening the water quality and avoiding the formation of scale. Therefore, the physical descaling method combining precision filtration and ion exchange can ensure the descaling effect while avoiding secondary pollution, and is more environmentally friendly and practical.

[0021] In the embodiment, the first hydraulic cylinder 14 is vertically fixed on the left and right two sides of the descaling box 3, the piston rod of the first hydraulic cylinder 14 is upward and fixedly connected with the bottom of the cover plate 4, so that in actual use, the cover plate 4 can be lifted and lowered by the extension and retraction of the piston rod of the first hydraulic cylinder 14, so as to facilitate the replacement of the folding filter element 7 and the resin filter element 10.

[0022] In the embodiment, the folding filter element 7 and the support net box 9 correspond to the top of the cover plate 4, and each is fixed with an inverted U-shaped mounting seat 15. The top of the cover plate 4 behind the mounting seat 15 is fixed with a second hydraulic cylinder 16, the piston rod of the second hydraulic cylinder 16 is forward and fixedly connected with a movable plate 17, the front side of the movable plate 17 is fixedly connected with a limiting rod 18, and the two vertical parts of the mounting seat 15 corresponding to the limiting rod 18 are each provided with a first through hole 19. The outer top of the folding filter element 7 and the support net box 9 is vertically fixed with a mounting plate 20, the upper part of the mounting plate 20 is provided with a second through hole 21, the corresponding cover plate 4 of the mounting plate 20 is provided with a mounting groove 22, the mounting plate 20 is inserted into the corresponding mounting seat 15 through the corresponding mounting groove 22, the second through hole 21 is aligned with the corresponding first through hole 19, the movable plate 17 abuts against the vertical part behind the corresponding mounting seat 15, and the limiting rod 18 penetrates through the corresponding first through hole 19 and the second through hole 21 to the front side of the mounting seat 15, so that when the folding filter element 7 and / or the resin filter element 10 need to be replaced, the cover plate 4 can be lifted to a suitable height, the corresponding second hydraulic cylinder 16 can be operated to make the piston rod retract, the limiting rod 18 can be moved backward to the rear side of the mounting seat 15, the insertion and fixation of the mounting plate 20 can be released, the original folding filter element 7 or resin filter element 10 can be pulled out, and the removed folding filter element 7 or resin filter element 10 can be sent to a regeneration station for regeneration treatment by existing regeneration technology to facilitate recycling. When the folding filter element 7 and the resin filter element 10 are reinstalled, the mounting plate 20 on the folding filter element 7 and the resin filter element 10 can be aligned with the corresponding mounting groove 22 and inserted until the mounting plate 20 is inserted into the corresponding mounting seat 15, the second hydraulic cylinder 16 can be operated to make the piston rod extend, the movable plate 17 can be moved forward until it abuts against the rear side of the mounting seat 15, the limiting rod 18 can penetrate through the corresponding first through hole 19 and the second through hole 21 to the front side of the mounting seat 15, the mounting plate 20 can be inserted and fixed, the installation and fixation of the corresponding folding filter element 7 or resin filter element 10 can be completed, and after installation, the cover plate 4 can be moved downward and abut against the top of the descaling box 3, the corresponding folding filter element 7 and resin filter element 10 can be abutted in the descaling box 3, and the subsequent switching work can be waited for use, the whole operation is simple and convenient, the folding filter element 7 and the resin filter element 10 can be more flexibly and conveniently disassembled and replaced, the descaling effect can be better guaranteed, and the device as a whole is more practical. The first hydraulic cylinder 14, the second hydraulic cylinder 16, the folding filter element 7 and the resin filter element 10 all adopt existing technologies, the specific structure and working principle are all existing technologies, and will not be described in detail here. The matching oil circuit and control system required by the hydraulic cylinder can also be appropriately selected from existing technologies according to actual conditions, and will not be specifically limited here.

[0023] In the embodiment, the bottom of the movable plate 17 is fixed with a sliding block 23, and the top of the corresponding cover plate 4 is provided with a corresponding sliding groove 24 in the front-rear direction, the sliding block 23 is slidably arranged in the corresponding sliding groove 24, so as to effectively support, guide and limit the movable plate 17, and ensure the smooth movement of the movable plate 17.

[0024] In the embodiment, the bottom of the cover plate 4 is fixed with a sealing gasket 25, so as to ensure the sealing between the cover plate 4 and the descaling box 3 and between the cover plate 4 and the mounting plate 20, and avoid water leakage.

[0025] In the embodiment, the left lower part of the descaling box 3 is communicated with a blowdown pipe 27 provided with a blowdown valve 26, so as to discharge the impurities filtered by the folded filter element 7 when needed.

[0026] The above only describes the preferred embodiments of the present application, and is not intended to limit the present application, and 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 circulating cooling water descaling device for a circulating water station, characterized by, The device comprises a front water pump, a rear water pump and two descaling boxes, the top of the descaling boxes is open and abuts with a liftably arranged cover plate, the left side of the inner bottom of the descaling boxes is fixedly provided with a first partition plate, and the right side of the inner bottom of the descaling boxes is fixedly provided with a second partition plate, the top end of the first partition plate abuts with the cover plate, and a gap is left between the top end of the second partition plate and the cover plate, a foldable filter core is detachably arranged on the bottom of the cover plate between the left side wall of the descaling box and the first partition plate, the top of the foldable filter core is closed, the bottom is open and abuts on the inner bottom of the descaling box, the inside of the foldable filter core is communicated with the bottom of the descaling box between the first partition plate and the second partition plate through a U-shaped conveying pipe, support net boxes are detachably arranged on the bottom of the cover plate on the left and right sides of the second partition plate, the support net boxes abut with the corresponding first partition plate, second partition plate and inner wall of the descaling box, the support net boxes are filled with resin filter cores, the left upper portion of the descaling box is communicated with a water inlet pipe, the water inlet pipes of the two descaling boxes are connected in parallel at the water outlet of the front water pump, the right lower portion of the descaling box is communicated with a water outlet pipe, and the water outlet pipes of the two descaling boxes are connected in parallel at the water inlet of the rear water pump, and control valves are arranged on the water inlet pipe and the water outlet pipe.

2. The circulating cooling water descaling device of claim 1, wherein, First hydraulic cylinders are vertically fixed and arranged on the left and right outer sides of the descaling box, the piston rods of the first hydraulic cylinders are upward and fixedly connected with the bottom of the cover plate.

3. The circulating cooling water scale removal device of claim 1, wherein, A reverse U-shaped mounting seat is fixedly arranged on the top of the corresponding cover plate of the foldable filter core and the support net box, a second hydraulic cylinder is fixedly arranged on the top of the cover plate on the rear side of the mounting seat, the piston rod of the second hydraulic cylinder is forward and fixedly connected with a movable plate, a limiting rod is fixedly arranged on the front side of the movable plate, first through holes are arranged on the two vertical parts of the corresponding mounting seat, mounting plates are vertically fixed on the outer top of the foldable filter core and the support net box, second through holes are arranged on the upper portion of the mounting plate, mounting grooves are arranged through the corresponding cover plate, the mounting plate is inserted into the corresponding mounting seat through the corresponding mounting groove, the second through hole is aligned with the corresponding first through hole, the movable plate abuts on the vertical part on the rear side of the corresponding mounting seat, and the limiting rod passes through the corresponding first through hole and the second through hole to the front side of the mounting seat.

4. The circulating cooling water descaling device of claim 3, wherein, A sliding block is fixedly arranged on the bottom of the movable plate, and an adaptive sliding groove is arranged on the top of the corresponding cover plate in the front-rear direction.

5. The circulating cooling water scale removal device of claim 1, wherein, A sealing gasket is fixedly arranged on the bottom of the cover plate.

6. The circulating water station circulating cooling water descaling device according to claim 1, characterized in that, A blowdown pipe with a blowdown valve is communicated with the left lower portion of the descaling box.

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