Automatic water replenishing device for boiler blow-off water tank

Abstract

The invention belongs to the technical field of automatic water replenishing for boiler blow-off water tanks, and particularly relates to an automatic water replenishing device for a boiler blow-off water tank, which comprises a fixed tank, a first water inlet is fixedly connected to the upper surface of the fixed tank, a first water outlet is fixedly connected to the upper surface of the fixed tank, a second water inlet is formed in one side of the fixed tank, and a second water outlet is formed in the other side of the fixed tank. A first water outlet is formed in one side of the fixing box, a second water outlet is formed in the other side of the fixing box, a first cavity is formed in the fixing box, a fixing frame is fixedly connected to the interior of the fixing box, a second cavity is formed below the fixing frame, and a heat exchange assembly is arranged on the upper surface of the fixing box. And the heat exchange assembly comprises a plurality of positioning pipes fixedly connected to the lower surface of the fixing frame, the section of each positioning pipe is rectangular, a fixing groove is formed in each positioning pipe, and by arranging the stirring assembly and the heat exchange assembly, the problem that the sewage discharge well can be damaged by high-temperature sewage is solved.

Description

Technical Field

[0001] The invention belongs to the technical field of automatic water replenishment for boiler sewage tanks, in particular to an automatic water replenishment device for boiler sewage tanks. Background Art

[0002] In the boiler system, the sewage tank is used to collect and store the sewage discharged by the boiler. To ensure the normal operation of the boiler, the water in the sewage tank needs to be discharged in time after use to maintain the stability of the boiler. Therefore, an efficient and automatic water replenishment device is essential for the stable operation of the boiler system.

[0003] The existing automatic water replenishment device monitors the temperature changes in the sewage tank in real time through the water level sensor. When the water temperature is lower than the preset value, the sensor will send a signal to open the drain to discharge the sewage, and then a new batch of sewage will be transported to the sewage tank through the pipe until the water level reaches the preset height. At this time, the water level sensor sends a signal again and the water replenishment pump stops working.

[0004] During the operation of existing boilers, sewage needs to be discharged into outdoor sewage wells at regular intervals. However, this process is not only accompanied by a large amount of steam overflow, causing the surrounding environment to be humid and blurred vision, but also because the temperature of boiler sewage is usually high, the continuous high temperature causes the inner wall of the sewage well to suffer serious thermal stress damage, which causes the inner wall of the sewage well to gradually break, and even some bricks to fall off, seriously affecting the normal discharge of sewage and bringing hidden dangers to the smooth operation of the sewage system. At the same time, frequent maintenance and replacement of damaged well walls also greatly increase the company's maintenance costs, bringing unnecessary burdens to the company's operations.

[0005] To this end, the present invention provides an automatic water replenishing device for a boiler sewage tank. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve the technical problem is: the automatic water replenishing device for a boiler sewage tank described in the present invention comprises a fixed box, a first water inlet is fixedly connected to the upper surface of the fixed box, a first water outlet is fixedly connected to the upper surface of the fixed box, a second water inlet is arranged on one side of the fixed box, and a second water outlet is arranged on the other side of the fixed box.

[0008] A first cavity is provided inside the fixed box, a fixed frame is fixed inside the fixed box, a second cavity is provided below the fixed frame, a heat exchange assembly is provided on the upper surface of the fixed box, the heat exchange assembly includes a plurality of positioning tubes fixed to the lower surface of the fixed frame, each positioning tube has a rectangular cross section, and a fixed groove is provided inside each positioning tube, the fixed groove is used to store feed water, the heat exchange assembly passes feed water into the first cavity and wastewater after boiler use into the second cavity, and since the wastewater has a high temperature, the wastewater will undergo heat exchange with the feed water at a low temperature through the positioning tube;

[0009] Each of the positioning tubes is provided with a scraping assembly on its outer surface, and the scraping assembly is used to scrape off impurities attached to the surface of the positioning tube to prevent the impurities from affecting the heat exchange efficiency between the make-up water and the sewage;

[0010] The scraping movement of the scraping component will simultaneously drive the stirring component, and the stirring component includes a stirring paddle rotatably arranged in the second cavity. The stirring paddle can make the sewage flow, improve the heat exchange efficiency, and enable the temperature of the sewage to fully exchange heat with the feed water, rather than only the water near the positioning pipe exchanging heat with the feed water.

[0011] Preferably, the heat exchange component also includes a first hydraulic cylinder fixedly connected to the upper surface of the fixed box, the output end of the first hydraulic cylinder is fixedly connected to a fixed plate, the fixed plate is fixedly connected to a fixed rod at the position corresponding to each fixed groove, the bottom end of each fixed rod is fixedly connected to a bottom plate, and the bottom plate is used to improve the heat exchange efficiency of the feed water.

[0012] Preferably, the bottom plate can move up and down driven by the first hydraulic cylinder. By periodically driving the first hydraulic cylinder to drive the bottom plate to move up and down, the bottom plate will separate from the fixed groove, thereby bringing the heated feed water in the fixed groove away from the fixed groove, so that the feed water with a lower temperature above the first cavity can enter the fixed groove for heat exchange. At the same time, after the bottom plate brings the feed water after heat exchange into the first cavity above, the mixing of hot water and cold water is accelerated, thereby improving the speed of heat exchange.

[0013] Preferably, the top wall of the fixed box is provided with an adsorption assembly, and the adsorption assembly includes an adsorption block fixedly connected to the top wall of the fixed box, and the adsorption block is made of absorbent cotton. During the up and down movement of the first hydraulic cylinder, water may adhere to the circumferential surface of the output end, and may be brought into the first hydraulic cylinder. By setting the adsorption block, the water at the output end of the first hydraulic cylinder is adsorbed, thereby improving the service life of the first hydraulic cylinder.

[0014] Preferably, the adsorption assembly includes a positioning ring fixedly connected to the top wall of the first cavity, an adsorption ring is arranged inside the positioning ring, the adsorption ring is fixed to the fixed box, two positioning rods are fixedly connected to the upper surface of the fixed plate, a positioning disk is fixedly connected to the upper surface of the two positioning rods, a plurality of positioning holes are opened on the upper surface of the positioning disk, and the output end of the first hydraulic cylinder drives the fixed plate to move upward so that the positioning disk will squeeze the adsorption ring that has been adsorbing water droplets on the circumferential surface of the first hydraulic cylinder for a long time, thereby squeezing the water out and flowing into the first cavity through the positioning holes, thereby extending the service life of the adsorption ring and making the adsorption ring have a longer service life.

[0015] Preferably, the scraping assembly includes a plurality of connecting plates fixedly connected to the lower surface of the fixed plate, each two of the connecting plates are located on both sides of the positioning tube, the lower surfaces of each two of the connecting plates are fixedly connected to the same positioning frame, the upper surface of the positioning frame is provided with an oblique groove, and the length of each of the connecting plates is greater than the length of the fixing rod.

[0016] Preferably, when the fixing plate is driven by the first hydraulic cylinder to move the bottom plate upward, the fixing plate will also drive the connecting plate and the positioning frame to move up and down. The up and down movement of the positioning frame can scrape off the attachments in the sewage attached to the surface of the positioning pipe, thereby improving the heat exchange efficiency of the positioning pipe. It is also required that the length of the connecting plate is greater than the fixing rod, so that when the bottom plate is fixedly driven to disengage from the fixing groove, the positioning frame is still below the fixing frame, thereby protecting the first cavity and the second cavity from being separated from each other, and maintaining a sliding seal during the up and down sliding of the connecting plate.

[0017] Preferably, the stirring assembly includes a limit frame fixedly connected to one side of the positioning frame, the middle part of the limit frame is rotatably connected to a connecting shaft, a gear is fixedly connected to the circumferential surface of the connecting shaft, a rack is fixedly connected to the position of the fixed box corresponding to the gear, both ends of the connecting shaft are transmission-connected with a transmission belt, the end of the transmission belt away from the connecting shaft is transmission-connected with an auxiliary shaft, the position of the positioning frame corresponding to the auxiliary shaft is fixedly connected to a limit rod, the limit rod is rotatably connected to the auxiliary shaft, a stirring paddle is fixedly connected to the circumferential surface of the auxiliary shaft, and the stirring paddle is used to stir the sewage to improve the fluidity of the sewage.

[0018] Preferably, stirring components are symmetrically arranged on both sides of the positioning frame, so that the sewage on both sides of the positioning pipe can be fully stirred.

[0019] Preferably, when the positioning frame moves up and down driven by the first hydraulic cylinder, it will drive the gear to move up and down along the rack plate, thereby causing the gear to rotate. The rotation of the gear will drive the connecting shaft fixed to it. The connecting shaft drives the two auxiliary shafts to rotate through the transmission at both ends. The two auxiliary shafts rotate under the limit of the limit rod, driving the stirring paddles on their respective circumferential surfaces to rotate, thereby stirring the sewage on both sides of the positioning pipe. The stirring paddle can also rotate while moving up and down, so that the high-temperature sewage on both sides of the positioning pipe can fully exchange heat with the feed water, thereby improving the heat exchange efficiency.

[0020] The beneficial effects of the present invention are as follows:

[0021] 1. The automatic water replenishing device for a boiler sewage tank described in the present invention, the replenishing water enters the first cavity of the fixed box through the first water inlet, and at the same time, the sewage after use of the boiler enters the second cavity through the second water inlet. In the positioning pipe below the fixed frame, part of the replenishing water is stored in the fixed tank. Since the sewage has a higher temperature, it realizes energy transfer through heat exchange with the low-temperature replenishing water in the positioning pipe. In order to improve the heat exchange efficiency, a scraping component is provided on the surface of the positioning pipe. The scraping component can scrape off impurities attached to the outer surface of the positioning pipe, ensure the effective heat exchange area of ​​the heat exchange process, and improve the heat exchange efficiency. It also changes the problem that the original high-temperature sewage will cause damage to the sewage well, and the waste heat of the high-temperature sewage is recycled and utilized, thereby achieving the energy-saving purpose of the boiler.

[0022] 2. In the automatic water replenishing device for a boiler sewage tank described in the present invention, some replenishing water may adhere to the circumferential surface of the output end of the first hydraulic cylinder during the up and down movement of the first hydraulic cylinder. In order to prevent the moisture from entering the first hydraulic cylinder and possibly affecting its service life, an adsorption block made of absorbent cotton material is fixed on the top wall of the box. When the output end of the first hydraulic cylinder moves to the vicinity of the adsorption block, the adsorption block can effectively absorb and remove moisture attached to the circumferential surface of the output end by utilizing its good water absorption capacity, thereby effectively preventing the replenishing water from entering the first hydraulic cylinder and reducing the risk of mechanical failure caused by moisture, thereby extending the service life of the first hydraulic cylinder and ensuring the stability and reliability of the entire water replenishing device. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention will be further described below in conjunction with the accompanying drawings.

[0024] Figure 1 is a three-dimensional diagram of the first embodiment of the present invention;

[0025] Figure 2 It is a structural schematic diagram of the main body of the present invention;

[0026] Figure 3It is a schematic diagram of the internal structure of the first cavity and the second cavity of the present invention;

[0027] Figure 4 It is a structural schematic diagram of the positioning tube of the present invention;

[0028] Figure 5 It is a structural schematic diagram of the connecting plate of the present invention;

[0029] Figure 6 It is a schematic structural diagram of the stirring assembly of the present invention.

[0030] In the figure: 1. Fixed box;

[0031] 2. First water inlet; 21. First water outlet; 22. Second water inlet; 23. Second water outlet;

[0032] 3. First hydraulic cylinder; 31. First cavity; 32. Second cavity; 33. Fixed frame; 34. Fixed plate; 35. Fixed groove; 36. Fixed rod; 37. Bottom plate; 38. Connecting plate; 39. Positioning frame; 310. Inclined groove; 311. Positioning rod; 312. Positioning plate; 313. Positioning hole; 314. Positioning ring; 315. Adsorption ring; 316. Limiting frame; 317. Connecting shaft; 318. Gear; 319. Rack plate; 320. Transmission belt; 321. Auxiliary shaft; 322. Limiting rod; 323. Agitator paddle; 324. Positioning tube. DETAILED DESCRIPTION

[0033] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0034] Embodiment 1: Figures 1 to 6As shown, an automatic water replenishing device for a boiler sewage tank described in an embodiment of the present invention includes a fixed box 1, a first water inlet 2 is fixedly connected to the upper surface of the fixed box 1, a first water outlet 21 is fixedly connected to the upper surface of the fixed box 1, a second water inlet 22 is arranged on one side of the fixed box 1, and a second water outlet 23 is arranged on the other side of the fixed box 1. A first cavity 31 is opened inside the fixed box 1, a fixed frame 33 is fixedly connected inside the fixed box 1, and a second cavity 32 is opened below the fixed frame 33. A heat exchange component is arranged on the upper surface of the fixed box 1, and the heat exchange component includes a plurality of positioning tubes 324 fixedly connected to the lower surface of the fixed frame 33, each positioning tube 324 has a rectangular cross-section, and each positioning tube 324 has a fixed groove 35 inside, and the fixed groove 35 is used to store replenishment The water supply and heat exchange components pass the feed water into the first cavity 31 and the wastewater after the boiler is used into the second cavity 32. Since the wastewater has a high temperature, the wastewater will exchange heat with the feed water with a low temperature through the positioning tube 324. Each positioning tube 324 is provided with a scraping component on the outer surface, and the scraping component is used to scrape off impurities attached to the surface of the positioning tube 324 to prevent the impurities from affecting the heat exchange efficiency between the feed water and the wastewater. The scraping movement of the scraping component will also drive the stirring component, and the stirring component includes a stirring paddle 323 that is rotatably arranged in the second cavity 32. The stirring paddle 323 can make the wastewater flow, improve the heat exchange efficiency, and enable the temperature of the wastewater to fully exchange heat with the feed water, rather than only the water near the positioning tube 324 exchanging heat with the feed water.

[0035] Specifically, during the operation of existing boilers, sewage needs to be discharged into outdoor sewage wells at regular intervals. However, this process is not only accompanied by a large amount of steam overflow, causing the surrounding environment to be humid and blurred vision, but also because the temperature of boiler sewage is usually high, the continuous high temperature causes the inner wall of the sewage well to suffer serious thermal stress damage, which causes the inner wall of the sewage well to gradually break, and even some bricks to fall off, seriously affecting the normal discharge of sewage and bringing hidden dangers to the smooth operation of the sewage system. At the same time, frequent maintenance and replacement of damaged well walls also greatly increase the maintenance costs of the enterprise, bringing unnecessary burdens to the operation of the enterprise;

[0036] Therefore, the present invention solves this problem by setting a corresponding structure. First, the feed water enters the first cavity 31 of the fixed box 1 through the first water inlet 2. At the same time, the sewage after use of the boiler enters the second cavity 32 through the second water inlet 22. In the positioning pipe 324 below the fixed frame 33, part of the feed water is stored in the fixed tank 35. Since the sewage has a higher temperature, it exchanges heat with the low-temperature feed water in the positioning pipe 324 to achieve energy transfer. In order to improve the heat exchange efficiency, a scraping component is set on the surface of the positioning pipe 324. The component can scrape impurities attached to the outer surface of the positioning pipe 324, ensure the effective heat exchange area of ​​the heat exchange process, and improve the heat exchange efficiency. It also solves the problem that the original high-temperature sewage will cause damage to the sewage well, and the waste heat of the high-temperature sewage is recycled and utilized, achieving the energy saving purpose of the boiler.

[0037] In addition, the movement of the scraping assembly drives the stirring paddle 323 in the stirring assembly to rotate in the second cavity 32. The rotation of the stirring paddle 323 causes the sewage to flow in the cavity, which not only increases the contact area between the sewage and the make-up water, but also enables the temperature of the sewage to more fully exchange heat with the make-up water, rather than being limited to the area near the positioning pipe 324.

[0038] The synergistic effect of the heat exchange component and the scraper component effectively improves the heat exchange efficiency between the feed water and the sewage, ensuring the stable operation of the boiler system. At the same time, the introduction of the stirring component further enhances the fluidity of the sewage, making the heat exchange process more sufficient, which helps to save energy and reduce consumption, and improve the energy efficiency of the overall system.

[0039] The problem that high-temperature sewage will damage the sewage well is solved, and the resource of high-temperature sewage is effectively utilized.

[0040] like Figure 5 As shown, the heat exchange assembly of this embodiment also includes a first hydraulic cylinder 3 fixedly connected to the upper surface of the fixed box 1, and the output end of the first hydraulic cylinder 3 is fixedly connected to a fixed plate 34, and the fixed plate 34 is fixedly connected to a fixed rod 36 at the position corresponding to each fixed groove 35, and the bottom end of each fixed rod 36 is fixedly connected to a bottom plate 37, and the bottom plate 37 is used to improve the heat exchange efficiency of the feed water.

[0041] Specifically, the first hydraulic cylinder 3 pushes the fixed plate 34 and the fixed rod 36 up and down through its output end, so that the bottom plate 37 moves up and down in each positioning tube 324, thereby periodically replacing the supply water in the fixed tank 35, further enhancing the heat exchange speed between the supply water and sewage.

[0042] like Figure 5As shown, the bottom plate 37 of this embodiment can move up and down under the drive of the first hydraulic cylinder 3. By periodically driving the first hydraulic cylinder 3 to drive the bottom plate 37 to move up and down, the bottom plate 37 will be separated from the fixed groove 35, thereby bringing the heated feed water in the fixed groove 35 away from the fixed groove 35, so that the feed water with a lower temperature above the first cavity 31 can enter the fixed groove 35 for heat exchange. At the same time, after the bottom plate 37 brings the feed water after heat exchange into the first cavity 31 above, the hot water is mixed with the cold water, thereby improving the speed of heat exchange.

[0043] Specifically, by periodically driving the first hydraulic cylinder 3, the bottom plate 37 moves up and down driven by the first hydraulic cylinder 3. When the bottom plate 37 rises, it will break away from the fixed groove 35 of the positioning tube 324, and bring the heated feed water away from the fixed groove 35, making room for new low-temperature feed water to enter the fixed groove 35 for heat exchange. When the bottom plate 37 descends, it not only brings the feed water after heat exchange into the first cavity 31 above, but also promotes the mixing of hot water and cold water, thereby accelerating the heat exchange process and improving the overall heat exchange speed. This periodic movement not only ensures the continuous and efficient heat exchange, but also further improves the heat exchange efficiency through the mixing of hot and cold water, which helps to achieve faster and more complete energy transfer.

[0044] like Figure 5 As shown, in this embodiment, the top wall of the fixed box 1 is provided with an adsorption assembly, and the adsorption assembly includes an adsorption block fixedly connected to the top wall of the fixed box 1, and the adsorption block is made of absorbent cotton. During the up and down movement of the first hydraulic cylinder 3, water may adhere to the circumferential surface of the output end, and then may be brought into the first hydraulic cylinder 3. By setting the adsorption block, the water at the output end of the first hydraulic cylinder 3 is adsorbed, thereby improving the service life of the first hydraulic cylinder 3.

[0045] Specifically, during the up and down movement of the first hydraulic cylinder 3, some supply water may adhere to the circumferential surface of its output end. In order to prevent the moisture from entering the first hydraulic cylinder 3 and possibly affecting its service life, an adsorption block made of absorbent cotton material is provided on the top wall of the fixed box 1. When the output end of the first hydraulic cylinder 3 moves near the adsorption block, the adsorption block can effectively absorb and remove the moisture attached to the circumferential surface of the output end by utilizing its good water absorption property, thereby effectively preventing the supply water from entering the first hydraulic cylinder 3 and reducing the risk of mechanical failure caused by moisture, thereby extending the service life of the first hydraulic cylinder 3 and ensuring the stability and reliability of the entire water supply device.

[0046] like Figure 5As shown, the adsorption assembly of this embodiment includes a positioning ring 314 fixedly connected to the top wall of the first cavity 31, and an adsorption ring 315 is arranged inside the positioning ring 314. The adsorption ring 315 is fixedly connected to the fixed box 1, and two positioning rods 311 are fixedly connected to the upper surface of the fixed plate 34. The upper surfaces of the two positioning rods 311 are fixedly connected to the positioning disk 312, and the upper surface of the positioning disk 312 is provided with a plurality of positioning holes 313. The output end of the first hydraulic cylinder 3 drives the fixed plate 34 to move upward, so that the positioning disk 312 will squeeze the adsorption ring 315 that has been adsorbing water droplets on the circumferential surface of the first hydraulic cylinder 3 for a long time, thereby squeezing out the water and flowing it into the first cavity 31 through the positioning holes 313, thereby extending the service life of the adsorption ring 315 and making the adsorption ring 315 have a longer service life.

[0047] Specifically, in the process of the first hydraulic cylinder 3 driving the fixed plate 34 to move upward, the positioning rod 311 and the positioning plate 312 above the fixed plate 34 also rise accordingly. The upper surface of the positioning plate 312 is designed with a plurality of positioning holes 313. When the positioning plate 312 contacts the adsorption ring 315 of the water droplets adsorbed on the circumferential surface of the output end of the first hydraulic cylinder 3, the adsorption ring 315 will be appropriately squeezed. This squeezing effect not only helps the adsorption ring 315 to release the adsorbed water, but also guides the water into the first cavity 31 through the positioning holes 313, thereby realizing the recycling of water, effectively extending the service life of the adsorption ring 315, and reducing the performance degradation caused by long-term saturated adsorption, thereby ensuring the continuous and efficient operation of the adsorption component.

[0048] Embodiment 2: Figures 1 to 6 As shown, compared with Example 1, another embodiment of the present invention is: the scraping assembly includes a plurality of connecting plates 38 fixedly connected to the lower surface of the fixed plate 34, every two connecting plates 38 are located on both sides of the positioning tube 324, and the lower surfaces of every two connecting plates 38 are fixedly connected with the same positioning frame 39, the upper surface of the positioning frame 39 is provided with an inclined groove 310, and the length of each connecting plate 38 is greater than the fixing rod 36.

[0049] Specifically, the scraping assembly is fixed under the fixed plate 34 through the connecting plate 38, and scrapes impurities on the surface of the positioning tube 324 as the fixed plate 34 moves. The inclined groove 310 design of the positioning frame 39 helps impurities to slide off and avoid accumulation. The length of the connecting plate 38 exceeds the fixed rod 36 to ensure comprehensive scraping without affecting the up and down movement of the bottom plate 37, thereby achieving effective cleaning of impurities and ensuring heat exchange efficiency.

[0050] like Figure 4As shown, in this embodiment, when the fixing plate 34 is driven by the first hydraulic cylinder 3 to move the bottom plate 37 upward, the fixing plate 34 will also drive the connecting plate 38 and the positioning frame 39 to move up and down. The up and down movement of the positioning frame 39 can scrape off the attachments in the sewage attached to the surface of the positioning pipe 324, thereby improving the heat exchange efficiency of the positioning pipe 324. In addition, the length of the connecting plate 38 is required to be greater than the fixing rod 36, so that when the bottom plate 37 is fixedly driven to disengage from the fixing groove 35, the positioning frame 39 is still below the fixing frame 33, thereby protecting the first cavity 31 and the second cavity 32 from being separated from each other, and the connecting plate 38 maintains a sliding seal during the up and down sliding process.

[0051] Specifically, driven by the first hydraulic cylinder 3, the fixing plate 34 not only drives the bottom plate 37 to rise and fall, but also drives the connecting plate 38 and the positioning frame 39 to move up and down. The movement of the positioning frame 39 effectively scrapes off the attachments on the surface of the positioning tube 324, thereby improving the heat exchange efficiency. The length of the connecting plate 38 exceeds the design of the fixing rod 36, thereby ensuring that when the bottom plate 37 is separated from the fixing groove 35, the positioning frame 39 is still located below the fixing frame 33, thereby maintaining the isolation between the first cavity 31 and the second cavity 32. At the same time, the connecting plate 38 maintains a sliding seal during the sliding process, thereby not only enhancing the heat exchange effect, but also ensuring effective isolation and sealing between the cavities, thereby providing a more stable and efficient operating environment for the water replenishment device.

[0052] like Figure 6 As shown, the stirring assembly of this embodiment includes a limit frame 316 fixedly connected to one side of the positioning frame 39, the middle part of the limit frame 316 is rotatably connected to a connecting shaft 317, a gear 318 is fixedly connected to the circumferential surface of the connecting shaft 317, a rack is fixedly connected to the position of the fixed box 1 corresponding to the gear 318, both ends of the connecting shaft 317 are transmission-connected to a transmission belt 320, one end of the transmission belt 320 away from the connecting shaft 317 is transmission-connected to an auxiliary shaft 321, a limit rod 322 is fixedly connected to the position of the positioning frame 39 corresponding to the auxiliary shaft 321, the limit rod 322 is rotatably connected to the auxiliary shaft 321, a stirring paddle 323 is fixedly connected to the circumferential surface of the auxiliary shaft 321, and the stirring paddle 323 is used to stir the sewage to improve the fluidity of the sewage.

[0053] Specifically, the stirring component realizes automatic rotation along with the movement of the positioning frame 39 through the cooperation of the connecting shaft 317 fixed by the limit frame 316, the gear 318 and the rack. The meshing of the gear 318 and the rack drives the connecting shaft 317 to rotate, and then drives the auxiliary shaft 321 and the stirring paddle 323 thereon to rotate through the transmission belt 320. The stirring paddle 323 stirs the sewage to enhance its fluidity. This component not only does not require an additional power source, but also utilizes the self-movement of the water replenishment device to achieve the stirring of the sewage, thereby improving the heat exchange efficiency, promoting the energy transfer between sewage and replenishment water, and at the same time enhancing the self-cleaning ability of the system and extending the service life of the equipment.

[0054] like Figure 5 As shown, in this embodiment, stirring components are symmetrically arranged on both sides of the positioning frame 39, so that the sewage on both sides of the positioning pipe 324 can be fully stirred.

[0055] Specifically, the stirring components symmetrically arranged on both sides of the positioning frame 39 can stir the sewage on both sides of the positioning pipe 324 evenly and comprehensively as the positioning frame 39 moves up and down, effectively breaking the static stratification of the water body, improving the overall fluidity of the sewage, ensuring sufficient mixing and heat exchange between the sewage and the feed water, and significantly improving the heat exchange efficiency.

[0056] like Figure 6 As shown, in the process of the positioning frame 39 of this embodiment moving up and down driven by the first hydraulic cylinder 3, the gear 318 will be driven to move up and down along the rack plate 319, so that the gear 318 will rotate. The rotation of the gear 318 will drive the connecting shaft 317 fixed thereto. The connecting shaft 317 drives the two auxiliary shafts 321 to rotate through the transmission belts 320 at both ends. The two auxiliary shafts 321 rotate under the limit of the limit rod 322, driving the stirring paddles 323 on their respective circumferential surfaces to rotate, thereby stirring the sewage on both sides of the positioning pipe 324. The stirring paddle 323 can also rotate while moving up and down, so that the high-temperature sewage on both sides of the positioning pipe 324 can fully exchange heat with the feed water, thereby improving the heat exchange efficiency.

[0057] Specifically, driven by the first hydraulic cylinder 3, the positioning frame 39 moves up and down. This movement converts the linear motion into the rotational motion of the gear 318 through the interaction between the gear 318 and the rack plate 319. The rotation of the gear 318 then drives the connecting shaft 317 fixed thereto to rotate. The connecting shaft 317 then drives the two auxiliary shafts 321 to rotate synchronously under the constraint of the limit rod 322 through the transmission belts 320 at both ends. The stirring paddle 323 on the auxiliary shaft 321 rotates accordingly, not only moving up and down with the positioning frame 39, but also stirring in the water, forming a dynamic heat exchange environment, so that the high-temperature sewage on both sides of the positioning pipe 324 can more fully exchange heat with the feed water.

[0058] Working principle, first, the make-up water enters the first cavity 31 of the fixed box 1 through the first water inlet 2, and at the same time, the sewage after use by the boiler enters the second cavity 32 through the second water inlet 22. In the positioning pipe 324 under the fixed frame 33, part of the make-up water is stored in the fixed tank 35. Since the sewage has a higher temperature, it exchanges heat with the low-temperature make-up water in the positioning pipe 324 to achieve energy transfer, in order to improve the heat exchange efficiency;

[0059] At the same time, by periodically driving the first hydraulic cylinder 3, the bottom plate 37 moves up and down under the drive of the first hydraulic cylinder 3. When the bottom plate 37 rises, it will break away from the fixed groove 35 of the positioning tube 324, and take the heated feed water away from the fixed groove 35, making room for new low-temperature feed water to enter the fixed groove 35 for heat exchange. When the bottom plate 37 descends, it not only brings the feed water after heat exchange into the first cavity 31 above, but also promotes the mixing of hot water and cold water, thereby accelerating the heat exchange process and improving the overall heat exchange speed. This periodic movement not only ensures the continuous and efficient heat exchange, but also further improves the heat exchange efficiency through the mixing of cold and hot water, which helps to achieve faster and more complete energy transfer.

[0060] Moreover, a scraping assembly is provided on the surface of the positioning tube 324, which is fixed under the fixing plate 34 through a connecting plate 38, and scrapes impurities on the surface of the positioning tube 324 as the fixing plate 34 moves. The inclined groove 310 of the positioning frame 39 is designed to help impurities slide off and avoid accumulation. The length of the connecting plate 38 exceeds the fixing rod 36, ensuring comprehensive scraping, and will not affect the up and down movement of the bottom plate 37, thereby achieving effective cleaning of impurities and ensuring heat exchange efficiency.

[0061] In addition, driven by the first hydraulic cylinder 3, the positioning frame 39 moves up and down. This movement converts the linear motion into the rotational motion of the gear 318 through the interaction between the gear 318 and the rack plate 319. The rotation of the gear 318 then drives the connecting shaft 317 fixed thereto to rotate. The connecting shaft 317 then drives the two auxiliary shafts 321 to rotate synchronously under the constraint of the limit rod 322 through the transmission belts 320 at both ends. The stirring paddle 323 on the auxiliary shaft 321 rotates accordingly, not only moving up and down with the positioning frame 39, but also stirring in the water, forming a dynamic heat exchange environment, so that the high-temperature sewage on both sides of the positioning pipe 324 can more fully exchange heat with the make-up water;

[0062] Through the synergistic effect of the heat exchange component, scraper component and stirring component, the heat exchange efficiency between the feed water and sewage is effectively improved, ensuring the stable operation of the boiler system. At the same time, the introduction of the stirring component further enhances the fluidity of the sewage, making the heat exchange process more sufficient, which helps to save energy and reduce consumption, and improve the energy efficiency of the overall system;

[0063] The problem that high-temperature sewage would damage the sewage well was solved, the waste heat of the high-temperature sewage was recycled and utilized, and the energy-saving purpose of the boiler was achieved.

[0064] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An automatic water replenishing device for a boiler sewage tank, comprising a fixed box (1), a first water inlet (2) fixedly connected to the upper surface of the fixed box (1), a first water outlet (21) fixedly connected to the upper surface of the fixed box (1), a second water inlet (22) arranged on one side of the fixed box (1), and a second water outlet (23) arranged on the other side of the fixed box (1), characterized in that: The fixed box (1) has a first cavity (31) formed inside, a fixed frame (33) fixedly connected inside, a second cavity (32) formed below the fixed frame (33), a heat exchange assembly provided on the upper surface of the fixed box (1), the heat exchange assembly comprising a plurality of positioning tubes (324) fixedly connected to the lower surface of the fixing frame (33), each positioning tube (324) having a rectangular cross section, a fixing groove (35) formed inside each positioning tube (324), and the fixing groove (35) being connected to the inside of the first cavity (31), the fixing groove (35) being used to store feed water, the heat exchange assembly passes feed water into the first cavity (31) and passes wastewater after use of the boiler into the second cavity (32), and heat exchange occurs with the feed water in the positioning tube (324); The outer surface of each positioning tube (324) is provided with a scraping component, and the scraping component is used to scrape away impurities attached to the surface of the positioning tube (324); The scraping movement of the scraping component will simultaneously drive the stirring component, and the stirring component includes a stirring paddle (323) rotatably arranged in the second cavity (32), and the stirring paddle (323) can make the sewage flow so that the sewage can fully exchange heat with the feed water.

2. The automatic water replenishing device for a boiler sewage tank according to claim 1, characterized in that: The heat exchange component also includes a first hydraulic cylinder (3) fixedly connected to the upper surface of the fixed box (1), the output end of the first hydraulic cylinder (3) is fixedly connected to a fixed plate (34), the fixed plate (34) is fixedly connected to a fixed rod (36) at a position corresponding to each fixed groove (35), and the bottom end of each fixed rod (36) is fixedly connected to a bottom plate (37).

3. The automatic water replenishing device for a boiler sewage tank according to claim 2, characterized in that: The bottom plate (37) can move up and down under the drive of the first hydraulic cylinder (3). By periodically driving the first hydraulic cylinder (3) to drive the bottom plate (37) to move up and down, the bottom plate (37) will be separated from the fixed groove (35), and the feed water that has been heated in the fixed groove (35) will be taken away from the fixed groove (35), so that the feed water with a lower temperature above the first cavity (31) can enter the fixed groove (35) for heat exchange. At the same time, after the bottom plate (37) brings the feed water after heat exchange into the first cavity (31) above, the mixing of hot water and cold water is accelerated.

4. The automatic water replenishing device for a boiler sewage tank according to claim 2, characterized in that: The top wall of the fixed box (1) is provided with an adsorption component, the adsorption component comprising an adsorption block fixedly connected to the top wall of the fixed box (1), the adsorption block being made of a water-absorbing cotton material, and during the up and down movement of the first hydraulic cylinder (3), water may adhere to the circumferential surface of the output end and may be brought into the first hydraulic cylinder (3), and the water at the output end of the first hydraulic cylinder (3) is adsorbed by providing the adsorption block.

5. The automatic water replenishing device for a boiler sewage tank according to claim 4, characterized in that: The adsorption assembly comprises a positioning ring (314) fixedly connected to the top wall of the first cavity (31), an adsorption ring (315) is arranged inside the positioning ring (314), the adsorption ring (315) is fixedly connected to the fixed box (1), two positioning rods (311) are fixedly connected to the upper surface of the fixed plate (34), and a positioning disk (312) is fixedly connected to the upper surface of the two positioning rods (311), and a plurality of positioning holes (313) are opened on the upper surface of the positioning disk (312), and when the output end of the first hydraulic cylinder (3) drives the fixed plate (34) to move upward, the positioning disk (312) will squeeze the adsorption ring (315) that has long been adsorbing water droplets on the circumferential surface of the first hydraulic cylinder (3), squeeze out the water, and let it flow into the first cavity (31) through the positioning holes (313).

6. The automatic water replenishing device for a boiler sewage tank according to claim 1, characterized in that: The scraping assembly comprises a plurality of connecting plates (38) fixedly connected to the lower surface of the fixing plate (34), the connecting plates (38) being located on both sides of the positioning tube (324), the lower surfaces of every two connecting plates (38) being fixedly connected to the same positioning frame (39), the upper surface of the positioning frame (39) being provided with an inclined groove (310), and the length of each connecting plate (38) being greater than the length of the fixing rod (36).

7. The automatic water replenishing device for a boiler sewage tank according to claim 6, characterized in that: When the fixing plate (34) is driven by the first hydraulic cylinder (3) to move the bottom plate (37) upward, the fixing plate (34) also drives the connecting plate (38) and the positioning frame (39) to move up and down. The up and down movement of the positioning frame (39) can scrape off the attachments in the sewage attached to the surface of the positioning pipe (324). The length of the connecting plate (38) is greater than the fixing rod (36). When the bottom plate (37) is fixedly driven to separate from the fixing groove (35), the positioning frame (39) is still below the fixing frame (33), thereby protecting the first cavity (31) and the second cavity (32) from each other. The connecting plate (38) maintains a sliding seal during the up and down sliding process.

8. The automatic water replenishing device for a boiler sewage tank according to claim 6, characterized in that: The stirring assembly comprises a limit frame (316) fixedly connected to one side of the positioning frame (39); a connecting shaft (317) is rotatably connected to the middle part of the limit frame (316); a gear (318) is fixedly connected to the circumferential surface of the connecting shaft (317); a rack is fixedly connected to the fixed box (1) at a position corresponding to the gear (318); both ends of the connecting shaft (317) are transmission-connected to a transmission belt (320); one end of the transmission belt (320) away from the connecting shaft (317) is transmission-connected to an auxiliary shaft (321); a limit rod (322) is fixedly connected to the position of the positioning frame (39) corresponding to the auxiliary shaft (321); the limit rod (322) is rotatably connected to the auxiliary shaft (321); a stirring paddle (323) is fixedly connected to the circumferential surface of the auxiliary shaft (321); the stirring paddle (323) is used to stir sewage to make the sewage flow.

9. The automatic water replenishing device for a boiler sewage tank according to claim 8, characterized in that: The two sides of the positioning frame (39) are symmetrically provided with stirring components, so that the sewage on the two sides of the positioning pipe (324) can be fully stirred.

10. The automatic water replenishing device for a boiler sewage tank according to claim 8, characterized in that: When the positioning frame (39) moves up and down under the drive of the first hydraulic cylinder (3), it drives the gear (318) to move up and down along the rack plate (319), thereby causing the gear (318) to rotate. The rotation of the gear (318) drives the connecting shaft (317) fixed thereto. The connecting shaft (317) drives the two auxiliary shafts (321) to rotate through the transmission belts (320) at both ends. The two auxiliary shafts (321) rotate under the limit of the limit rod (322), driving the stirring paddles (323) on their respective circumferential surfaces to rotate, thereby stirring the sewage on both sides of the positioning pipe (324). The stirring paddles (323) can also rotate while moving up and down, so that the high-temperature sewage on both sides of the positioning pipe (324) can fully exchange heat with the make-up water.

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