Hot water storage tank for heat supply

By introducing spiral grooves and scrapers into the hot water storage tank, combined with spray nozzles to apply descaling agent and detachable filter cartridges, the problems of reduced heat transfer efficiency and difficult cleaning caused by scale accumulation are solved. This achieves efficient scale cleaning and filter cartridge replacement, avoiding equipment failure.

CN223878689UActive Publication Date: 2026-02-06XINGAN LEAGUE FANYAWEIDE NEW ENERGY TECH CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202520518192.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-24
Publication Date
2026-02-06
Estimated Expiration
2035-03-24

AI Technical Summary

Technical Problem

Existing hot water storage tanks suffer from severe scale buildup during long-term storage, leading to decreased heat transfer efficiency, increased energy consumption, and difficulty in cleaning, which can easily cause equipment failure.

Method used

A movable frame structure with spiral grooves and scrapers was designed. Combined with the spray nozzle to spray descaling agent, the movable frame is driven by a cylinder to rotate and the scraper removes scale. The scale formation is also reduced by a detachable filter cartridge.

Benefits of technology

It achieves efficient scale removal, improves cleaning efficiency, avoids overheating of the tank inner wall and heating element, simplifies the replacement and cleaning process of filter cartridges, and reduces workload.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223878689U_ABST
    Figure CN223878689U_ABST
Patent Text Reader

Abstract

The utility model relates to the technical field of heat supply equipment, and discloses a heat supply hot water storage tank which comprises a storage tank body, a water adding opening is formed in the left side of the storage tank body, a water outlet is formed in the right side of the storage tank body, a sewage draining opening is formed in the bottom of the storage tank body, a support is fixedly installed in the storage tank body, and a guide rod is fixedly installed in the middle of the support. According to the device, a descaling agent is sprayed to the inner wall of the storage tank through a spray head, then an air cylinder moves to push a moving frame downwards, the moving frame rotates along a first spiral groove while moving downwards, a scraper is further made to rotate to scrape water scales, and compared with a traditional device, the device can be used for cleaning the inner wall of the storage tank after storage operation is finished; scale on the inner wall of the storage tank is thoroughly scraped through the descaling agent and the scraper, the cleaning efficiency is effectively improved, and overheating of the inner wall of the storage tank and a heating element caused by the scale is avoided.
Need to check novelty before this filing date? Find Prior Art

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of heat supply equipment, and more particularly to a hot water storage tank for heat supply. BACKGROUND

[0002] In order to meet the heating needs of users in cold seasons or low-temperature environments and provide comfortable living and working conditions, a heat supply system transmits heat energy to indoor spaces to maintain a suitable temperature for users, and a hot water storage tank is a device for storing hot water and plays an important role in the heat supply system. The hot water storage tank is made of high-temperature-resistant and pressure-resistant materials and is internally provided with a heat preservation layer to reduce heat loss.

[0003] However, during long-term storage, scale will gradually accumulate in the current hot water storage tank, especially on the inner wall of the tank. The higher the water temperature, the faster the mineral precipitation, and the more obvious the scale formation. When a large amount of scale accumulates, the poor thermal conductivity of the scale will hinder heat transfer, resulting in a decrease in heating efficiency and an increase in energy consumption. In addition, scale accumulation can cause the inner wall of the tank or the heating element to overheat, and even cause equipment failure or damage. The current hot water storage tank is difficult to clean, and the scale in the tank body is usually removed by adding a scale remover. However, this method takes a long time and is difficult to remove the scale on the inner wall of the tank body, so it needs to be improved and optimized. CONTENT OF THE UTILITY MODEL

[0004] In order to overcome the shortcomings of the prior art, the present application provides a hot water storage tank for heat supply, which has the advantages of convenient scale cleaning.

[0005] To achieve the above purpose, the present application provides the following technical scheme: a hot water storage tank for heat supply, comprising a storage tank, a water inlet is formed on the left side of the storage tank, a water outlet is formed on the right side of the storage tank, a sewage outlet is formed on the bottom of the storage tank, a bracket is fixedly installed inside the storage tank, a guide rod is fixedly installed in the middle of the bracket, and a first spiral groove is formed on the outer wall of the guide rod;

[0006] A sleeve ring is sleeved on the top of the guide rod, a gas cylinder is fixedly installed on the top of the storage tank, the telescopic end of the gas cylinder penetrates into the inside of the storage tank and is fixedly connected with the sleeve ring, a moving frame is rotatably installed at the bottom of the sleeve ring, a second spiral groove is formed in the middle of the moving frame, the moving frame is movably sleeved on the outer wall of the guide rod, the second spiral groove in the middle of the moving frame is matched with the first spiral groove, a scraper is formed on the outer wall of the moving frame, the scraper and the inner wall of the storage tank are mutually attached, a spray head is fixedly installed on the top of the inner wall of the storage tank, a dosing port is formed on the top of the storage tank, and the dosing port and the spray head are in communication.

[0007] As a preferred technical scheme of the present application, the left side of the water inlet is detachably installed with a filter cartridge, and a filter core is fixedly installed inside the filter cartridge.

[0008] The right side of the inner wall of the filter cartridge is provided with a fixing groove, the outer surface of the water inlet is provided with an expansion groove, a wedge is movably installed inside the expansion groove, the bottom of the wedge and the expansion groove are elastically connected through a second spring, and the top of the wedge and the inner wall of the fixing groove abut each other.

[0009] As a preferred technical scheme of the present application, the right side of the upper and lower inner walls of the filter cartridge is provided with a clamping block, and the upper and lower ends of the outer wall of the water inlet are provided with clamping grooves corresponding to the clamping blocks.

[0010] As a preferred technical scheme of the present application, the end face of the side wall of the water inlet is provided with a movable groove, a thimble is movably installed inside the movable groove, one end of the thimble and the movable groove are elastically connected through a first spring, and the other end of the thimble penetrates to the outside of the water inlet and abuts against the right side wall of the filter cartridge.

[0011] As a preferred technical scheme of the present application, the outer wall of the filter cartridge is fixedly installed with a guide cylinder, a button is movably installed inside the guide cylinder, and one end of the button penetrates to the inside of the fixing groove.

[0012] As a preferred technical scheme of the present application, the button and the outer wall of the filter cartridge are elastically connected through a third spring, and the bottom of the button and the wedge abut each other.

[0013] Compared with the prior art, the present application has the following advantages:

[0014] 1. The present application sprays the descaling agent on the inner wall of the storage tank through the spray head, and the gas cylinder pushes the moving frame downward through the operation of the gas cylinder, while the moving frame moves downward along the first spiral groove, and further rotates the scraper to remove the scale. Compared with the traditional device, the device can completely remove the scale on the inner wall of the storage tank after the storage operation is completed through the descaling agent and the scraper, effectively improving the cleaning efficiency and avoiding the overheating of the inner wall of the storage tank and the heating element caused by the scale.

[0015] 2. The button is pressed to extrude the wedge into the inside of the expansion groove, and the connection between the filter cartridge and the water inlet is released, and the thimble always provides a leftward thrust to the filter cartridge through the first spring, so that the filter cartridge is popped out. Compared with the traditional device, the device can reduce the generation of scale from the source through the addition of the filter cartridge, and the quick disassembly and assembly design of the filter cartridge facilitates the replacement and cleaning of the filter cartridge by the staff, effectively improving the work efficiency and reducing the work burden. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the accompanying drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced. Obviously, the accompanying drawings in the following description are some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor.

[0017] Figure 1 The structure schematic diagram of the present application;

[0018] Figure 2 The internal structure schematic diagram of the storage tank of the present application;

[0019] Figure 3 The structure schematic diagram of the moving frame of the present application;

[0020] Figure 4 The structure schematic diagram of the guide rod of the present application;

[0021] Figure 5 The structure schematic diagram of the filter cartridge of the present application;

[0022] Figure 6 The structure schematic diagram of the button of the present application;

[0023] Figure 7 The structure schematic diagram of the wedge of the present application;

[0024] Figure 8 The structure schematic diagram of the ejector pin of the present application.

[0025] In the drawings: 1, storage tank; 2, water inlet; 3, water outlet; 4, sewage outlet; 5, support; 6, guide rod; 7, first spiral groove; 8, moving frame; 9, scraper; 10, second spiral groove; 11, collar; 12, air cylinder; 13, first spring; 14, spray head; 15, medicine inlet; 16, filter cartridge; 17, filter core; 18, clamping block; 19, clamping groove; 20, telescopic groove; 21, wedge; 22, second spring; 23, fixed groove; 24, guide cylinder; 25, button; 26, third spring; 27, ejector pin; 28, movable groove. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are some embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor also belong to the protection scope of the present application.

[0027] As Figures 1 to 8As shown, the application provides a hot water storage tank for heating, which comprises a storage tank 1, a water inlet 2 is arranged on the left side of the storage tank 1, a water outlet 3 is arranged on the right side of the storage tank 1, a sewage outlet 4 is arranged on the bottom of the storage tank 1, a support 5 is fixedly installed in the storage tank 1, a guide rod 6 is fixedly installed in the middle of the support 5, a first spiral groove 7 is arranged on the outer wall of the guide rod 6;

[0028] A sleeve ring 11 is sleeved on the top of the guide rod 6, an air cylinder 12 is fixedly installed on the top of the storage tank 1, the telescopic end of the air cylinder 12 penetrates into the inside of the storage tank 1 and is fixedly connected with the sleeve ring 11, a moving frame 8 is rotatably installed on the bottom of the sleeve ring 11, a second spiral groove 10 is arranged in the middle of the moving frame 8, the moving frame 8 is movably sleeved on the outer wall of the guide rod 6, the second spiral groove 10 in the middle of the moving frame 8 is matched with the first spiral groove 7, a scraper 9 is arranged on the outer wall of the moving frame 8, the scraper 9 and the inner wall of the storage tank 1 are mutually attached, a spray head 14 is fixedly installed on the top of the inner wall of the storage tank 1, a dosing port 15 is arranged on the top of the storage tank 1, and the dosing port 15 and the spray head 14 are in communication.

[0029] When storing hot water, the staff first connects the water inlet 2 with the water inlet pipe outside and pours in hot water, which is stored in the inside of the storage tank 1 through the water inlet 2, after a long storage operation, the staff discharges the hot water, and then the staff delivers the descaling agent into the inside of the storage tank 1 through the dosing port 15. The telescopic end of the air cylinder 12 is fixedly connected with the side wall top end of the sleeve ring 11, the sleeve ring 11 corresponds to the second spiral groove 10 in the vertical direction, and the ring opening diameter of the sleeve ring 1 is greater than the radial diameter of the second spiral groove 10, so as to avoid the ring opening of the sleeve ring 11 and enable the guide rod 6 to move up and down along the sleeve ring 11. Start the air cylinder 12, at this time the descaling agent is sprayed on the inner wall of the storage tank 1 through the spray head 14, the scale is softened, and the operation of the air cylinder 12 pushes the sleeve ring 11 downward, along with the downward movement of the sleeve ring 11, the moving frame 8 is also displaced downward, however, the second spiral groove 10 in the moving frame 8 and the first spiral groove 7 on the outer wall of the guide rod 6 are matched with each other, so that the moving frame 8 rotates along the first spiral groove 7 when it is displaced downward, and the scraper 9 further scrapes off the softened scale, which can be discharged through the sewage outlet 4.

[0030] The descaling agent is sprayed on the inner wall of the storage tank 1 through the spray head 14, and the air cylinder 12 pushes the moving frame 8 downward, while the moving frame 8 rotates along the first spiral groove 7, which further rotates the scraper 9 to scrape off the scale. Compared with the traditional device, the device can completely scrape off the scale on the inner wall of the storage tank 1 through the descaling agent and the scraper 9 after the storage operation is completed, effectively improving the cleaning efficiency and avoiding the overheating of the inner wall of the storage tank and the heating element caused by the scale.

[0031] The left side of the water inlet 2 is detachably mounted with a filter cartridge 16, and the inside of the filter cartridge 16 is fixedly mounted with a filter core 17.

[0032] A fixed groove 23 is formed in the right side of the inner wall of the filter cartridge 16, an expansion groove 20 is formed in the outer surface of the water inlet 2, a wedge 21 is movably mounted in the expansion groove 20, the bottom of the wedge 21 and the expansion groove 20 are elastically connected through a second spring 22, and the top of the wedge 21 and the inner wall of the fixed groove 23 abut each other.

[0033] The filter cartridge 16 is connected with the water pipe outside, when hot water is poured into the water inlet 2, the water is filtered by the filter core 17 to reduce impurities in the hot water stored in the cylinder 1. After a long time of use, the filtering effect of the filter core 17 will be poor, the wedge 21 is pressed into the inside of the expansion groove 20 from the fixed groove 23, the position between the expansion groove 20 and the fixed groove 23 is no longer limited, at this time, the connection between the filter cartridge 16 and the water inlet 2 is released, the filter cartridge 16 is ejected away from the water inlet 2, compared with the traditional device, the device can reduce the generation of scale from the source through the addition of the filter cartridge 16, and the filter cartridge 16 can be quickly disassembled, so that the worker can replace and clean the filter cartridge 16, the working efficiency is effectively improved, and the work burden is reduced.

[0034] The right side of the upper and lower inner walls of the filter cartridge 16 is provided with a clamping block 18, and the upper and lower ends of the outer wall of the water inlet 2 are provided with a clamping groove 19 corresponding to the clamping block 18.

[0035] The worker aligns the clamping block 18 and the clamping groove 19 to realize the positioning function, so that the filter cartridge 16 can be quickly installed.

[0036] The side wall end surface of the water inlet 2 is provided with a movable groove 28, a thimble 27 is movably mounted in the movable groove 28, one end of the thimble 27 and the movable groove 28 are elastically connected through a first spring 13, and the other end of the thimble 27 penetrates to the outside of the water inlet 2 and abuts against the right side wall of the filter cartridge 16.

[0037] The thimble 27 always provides a leftward thrust for the filter cartridge 16 through the elastic potential energy of the first spring 13, when the connection between the filter cartridge 16 and the water inlet 2 is released, the thimble 27 always provides a leftward thrust for the filter cartridge 16 through the first spring 13, the filter cartridge 16 is automatically ejected to the left to complete the disassembly of the filter cartridge 16, so that the worker can replace or clean the filter cartridge 16.

[0038] The outer wall of the filter cartridge 16 is fixedly mounted with a guide cylinder 24, a button 25 is movably mounted in the guide cylinder 24, and one end of the button 25 penetrates into the inside of the fixed groove 23.

[0039] The worker presses the button 25, the downward pressing of the button 25 will extrude the bottom of the button 25 to the inclined wedge 21, and the further inclined wedge 21 will be extruded into the inside of the telescopic groove 20, at this time, the connection relationship between the filter cartridge 16 and the water inlet 2 is released.

[0040] The third spring 26 is elastically connected between the button 25 and the outer wall of the filter cartridge 16, and the bottom of the button 25 and the inclined wedge 21 are in contact with each other.

[0041] The downward pressing of the button 25 will compress the third spring 26, and the third spring 26 will extrude the inclined wedge 21 downward, and when the button 25 is no longer pressed, the button 25 is reset upward under the elastic action of the third spring 26.

[0042] The working principle and use process of the present application are as follows:

[0043] When storing hot water, the worker first connects the filter cartridge 16 with the water pipe outside and inputs hot water, at this time, the water is filtered by the filter element 17 to reduce the impurities in the hot water, and the hot water is stored in the inside of the storage tank 1 through the water inlet 2. After a long storage operation, the worker discharges the hot water, then the worker sends the descaling agent into the inside of the storage tank 1 through the dosing port 15 and starts the air cylinder 12, at this time, the descaling agent is sprayed on the inner wall of the storage tank 1 through the spray head 14 to soften the water scale, and the operation of the air cylinder 12 will push the sleeve ring 11 downward, and with the downward movement of the sleeve ring 11, the moving frame 8 also moves downward synchronously, however, the second spiral groove 10 in the moving frame 8 and the first spiral groove 7 on the outer wall of the guide rod 6 are matched with each other, so that the moving frame 8 rotates along the first spiral groove 7 when moving downward, and the further scraper 9 will scrape off the softened water scale, and the worker can discharge the scraped water scale through the blowdown port 4. After a long time of use, the filtering effect of the filter element 17 will be poor, at this time, the worker presses the button 25, the downward pressing of the button 25 will extrude the bottom of the button 25 to the inclined wedge 21, and the further inclined wedge 21 will be extruded into the inside of the telescopic groove 20, at this time, the connection relationship between the filter cartridge 16 and the water inlet 2 is released, and at the same time, the top pin 27 will always provide a leftward pushing force to the filter cartridge 16 through the elastic potential energy of the first spring 13, when the worker presses the button 25, the filter cartridge 16 will automatically pop out to the left to complete the disassembly, so that the worker can replace or clean the filter cartridge 16. After the treatment is completed, the worker aligns the clamping block 18 on the inner wall of the filter cartridge 16 with the clamping groove 19, and after the alignment, the filter cartridge 16 is connected to the right into the water inlet 2, when the filter cartridge 16 is connected, the right end of the filter cartridge 16 will extrude the inclined wedge 21 into the inside of the telescopic groove 20, and when the filter cartridge 16 is completely reset, the inclined wedge 21 will be reset upward through the elastic potential energy of the second spring 22 to complete the fixation, at this time, the leftward pushing force provided by the top pin 27 to the filter cartridge 16 will increase the friction between the inclined wedge 21 and the fixing groove 23 to ensure the stable connection.

[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, and are not limited thereto; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand; it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A hot water storage tank for heating, comprising a storage tank (1), characterised in that: The left side of the storage tank (1) is provided with a water inlet (2), the right side of the storage tank (1) is provided with a water outlet (3), the bottom of the storage tank (1) is provided with a sewage outlet (4), the inside of the storage tank (1) is fixedly installed with a support (5), the middle of the support (5) is fixedly installed with a guide rod (6), and the outer wall of the guide rod (6) is provided with a first spiral groove (7). The top of the guide rod (6) is sleeved with a sleeve ring (11), the top of the storage tank (1) is fixedly installed with a gas cylinder (12), the telescopic end of the gas cylinder (12) penetrates into the inside of the storage tank (1) and is fixedly connected with the sleeve ring (11), the bottom of the sleeve ring (11) is rotatably installed with a moving frame (8), the middle of the moving frame (8) is provided with a second spiral groove (10), the moving frame (8) is movably sleeved on the outer wall of the guide rod (6), and the second spiral groove (10) in the middle of the moving frame (8) is matched with the first spiral groove (7), the outer wall of the moving frame (8) is provided with a scraper (9), the scraper (9) and the inner wall of the storage tank (1) are mutually attached, the top of the inner wall of the storage tank (1) is fixedly installed with a spray head (14), the top of the storage tank (1) is provided with a dosing port (15), and the dosing port (15) and the spray head (14) are in communication.

2. The hot water storage tank for heating according to claim 1, characterized in that: The left side of the water inlet (2) is detachably installed with a filter cartridge (16), and the inside of the filter cartridge (16) is fixedly installed with a filter core (17). The right side of the inner wall of the filter cartridge (16) is provided with a fixed groove (23), the outer surface of the water inlet (2) is provided with an expansion groove (20), the inside of the expansion groove (20) is movably installed with a wedge (21), the bottom of the wedge (21) and the expansion groove (20) are elastically connected through a second spring (22), and the top of the wedge (21) and the inner wall of the fixed groove (23) are in abutment.

3. The hot water storage tank for heating according to claim 2, characterized in that: The right sides of the upper and lower inner walls of the filter cartridge (16) are provided with clamping blocks (18), and the upper and lower ends of the outer wall of the water inlet (2) are provided with clamping grooves (19) corresponding to the clamping blocks (18).

4. The hot water storage tank for heating according to claim 2, characterized by: The side wall end face of the water inlet (2) is provided with a movable groove (28), the inside of the movable groove (28) is movably installed with a thimble (27), one end of the thimble (27) and the movable groove (28) are elastically connected through a first spring (13), the other end of the thimble (27) penetrates to the outside of the water inlet (2) and abuts against the right side wall of the filter cartridge (16).

5. The hot water storage tank for heating according to claim 2, characterized by: The outer wall of the filter cartridge (16) is fixedly installed with a guide cylinder (24), the inside of the guide cylinder (24) is movably installed with a button (25), and one end of the button (25) penetrates into the inside of the fixed groove (23).

6. The hot water storage tank for heating according to claim 5, characterized in that: The button (25) and the outer wall of the filter cartridge (16) are elastically connected through a third spring (26), and the bottom of the button (25) and the wedge (21) are in contact.