Device for cleaning sand cylinder through cooperation of airflow and water bath

By using a combined airflow and water bath cleaning device, and employing staggered water and air nozzles, all-around cleaning is achieved, solving the problems of time-consuming, labor-intensive, and unsatisfactory results of existing cleaning technologies, and achieving a highly efficient and environmentally friendly cleaning effect.

CN224253761UActive Publication Date: 2026-05-19ZHIJING FUTURE (ZHENGZHOU) WATER TREATMENT EQUIPMENT CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHIJING FUTURE (ZHENGZHOU) WATER TREATMENT EQUIPMENT CO LTD
Filing Date
2025-07-03
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

Existing cleaning technologies are time-consuming and labor-intensive, and the cleaning effect is not ideal. They are difficult to completely remove dirt from the inside of the sand filter, which affects the filtration effect.

Method used

An airflow and water bath combined cleaning device is adopted. By using water spray nozzles and air jet nozzles in an alternating manner, water flow and airflow are combined to clean synchronously, ensuring that the components in the cleaning chamber are fully covered.

Benefits of technology

It significantly improves cleaning efficiency, effectively removes dirt from inside the sand filter, reduces cleaning time, enhances filtration performance, and reduces environmental impact.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of sand cylinder cleaning, and discloses a device for cleaning a sand cylinder through cooperation of airflow and water bath. The technical problems that in the prior art, a single water bath cleaning mode is not ideal in cleaning effect, dirt residues are caused, and the subsequent filtering effect is affected are solved. The cleaning device comprises a shell to form a cleaning cavity, a water bath pipeline and an air flow pipeline are arranged in the shell, a plurality of water spraying openings used for spraying cleaning water into the cleaning cavity are formed in the water bath pipeline, and a plurality of air spraying openings used for spraying air flow into the cleaning cavity are formed in the air flow pipeline. The water spraying openings and the air spraying openings are distributed in an array staggered mode, arranged around the central axis of the cleaning cavity and used for conducting synchronous air bath and water bath combined cleaning on the interior of the cleaning cavity. By means of the innovative air bath and water bath combined cleaning mode, the cleaning effect and the cleaning efficiency are remarkably improved.
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Description

Technical Field

[0001] This utility model relates to the technical field, and in particular to a device for cleaning sand tanks using a combination of airflow and water bath. Background Technology

[0002] In both industrial and daily life, pool sand filters are one of the most important components of circulation systems, used to filter pool water and purify its quality. Sand filters utilize special filter sand to remove tiny impurities from the pool. The filter sand, acting as the medium for removing impurities, is filled into the chambers within the filter. Pool water passes through the filter, where tiny impurities are captured and removed by the sand bed. The filtered water then returns to the pool through a pipe via a control switch at the bottom of the filter. After a period of use, accumulated impurities in the sand filter can impede water flow, weakening it. At this point, the filter needs to be cleaned. With the continuous development of industrial production and increasingly stringent environmental protection requirements, the market demand for efficient, environmentally friendly, and energy-saving cleaning equipment is growing. Existing cleaning technologies can no longer meet the requirements of modern industry for high efficiency, high quality, and low environmental impact in sand filter cleaning. Therefore, developing a cleaning device that can efficiently, uniformly, and thoroughly clean the interior of sand filters while minimizing human intervention and environmental impact has become an important research direction.

[0003] Chinese patent document 202420474674.4 discloses a swimming pool filter tank cleaning device, including a mounting base. A water receiving groove is provided at the center of the surface of the mounting base. A placement platform is fixedly installed inside the water receiving groove. Four sets of clamping components are placed on the upper surface of the mounting base.

[0004] However, the above solutions have at least the following technical problems during implementation: Existing cleaning technologies use traditional manual cleaning methods, which usually require disassembling the sand tank and then cleaning it with tools such as brushes and high-pressure water guns. This method is not only time-consuming and labor-intensive, but also difficult to thoroughly clean every corner inside the sand tank. Moreover, the cleaning effect is not ideal, resulting in dirt residue and affecting the subsequent filtration effect. Single water bath cleaning method has limited cleaning effect. Although relying solely on water flow to rinse can remove some surface dirt, it is not effective at cleaning stubborn dirt and bacteria attached to the sand layer. Therefore, there is an urgent need to propose a sand tank cleaning device that combines airflow and water bath. Summary of the Invention

[0005] In view of the above technical problems, this disclosure provides a device for cleaning sand filters by a combination of airflow and water bath, which solves the technical problem that the existing single water bath cleaning method has unsatisfactory cleaning effect, resulting in dirt residue and affecting the subsequent filtration effect.

[0006] According to one aspect of this disclosure, a device for cleaning a sand filter using a combination of airflow and water bath is provided, comprising a housing to form a cleaning chamber. The housing is provided with a water bath pipe and an airflow pipe. The water bath pipe is provided with a plurality of water spray nozzles for spraying cleaning water into the cleaning chamber, and the airflow pipe is provided with a plurality of air jet nozzles for spraying airflow into the cleaning chamber. The water spray nozzles and air jet nozzles are arranged in an array and staggered around the central axis of the cleaning chamber, for performing simultaneous air bath and water bath combined cleaning in the cleaning chamber.

[0007] In some embodiments of this disclosure, the bottom of the housing is fixedly mounted on the sand cylinder base.

[0008] In some embodiments of this disclosure, the housing includes a sidewall, a top cover is mounted above the sidewall and a chassis is mounted below the sidewall, the top cover is fitted with a viewing mirror, and the chassis is provided with an outlet.

[0009] In some embodiments of this disclosure, a support pipe is installed at the center of the bottom of the cleaning chamber, and a multi-hole connector is installed on the support pipe. The multi-hole connector has multiple branch interfaces distributed circumferentially, and each branch interface is equipped with a filter pipe. The end of the filter pipe forms a lower water spray nozzle, and the upper part of the multi-hole connector is connected to an external water source through a lower water inlet pipe.

[0010] In some embodiments of this disclosure, an upper water inlet pipe is installed above the lower water inlet pipe, and the upper water inlet pipe is connected to the left branch pipe and the right branch pipe via a tee pipe. Multiple upper water spray nozzles are linearly arrayed on the left branch pipe and the right branch pipe.

[0011] In some embodiments of this disclosure, the airflow pipeline includes an annular air pipe installed in the cleaning chamber. The annular air pipe is connected to an external air source via an air inlet pipe. The annular air pipe has multiple radial jet ports arranged circumferentially toward its center and multiple axial jet ports arranged vertically upward.

[0012] The beneficial effects of this utility model are as follows:

[0013] By combining water bath and air bath cleaning methods, the synergistic effect of water flow and airflow can significantly improve cleaning efficiency. Water flow provides direct rinsing force, while airflow increases the turbulence of the water flow, helping it to better contact the dirt on the surface of the parts, thereby removing dirt more effectively.

[0014] The array of water spray nozzles and air jets, arranged around the central axis of the cleaning chamber, ensures that water and air flow can fully cover the components inside the cleaning chamber, avoiding cleaning dead spots and further improving the cleaning effect.

[0015] The bottom of the housing is fixedly installed on the sand cylinder base to ensure that the entire device is stable and reliable during the cleaning process and to prevent shaking caused by the impact of water flow and airflow.

[0016] The top cover is equipped with a viewing mirror, which allows operators to observe the cleaning process in real time and promptly determine whether the cleaning effect has met expectations; the chassis is equipped with a drain outlet to facilitate the discharge of wastewater after cleaning, simplifying the post-cleaning treatment process.

[0017] The lower spray nozzle is formed through the end of the filter pipe, which can spray water from the bottom upwards, mainly for rinsing the bottom and sides of the components; the upper spray nozzle is formed through the linear array of spray nozzles on the left and right branch pipes, which spray water from the top downwards, forming a cross-rinse with the lower spray nozzle, further improving the cleaning effect.

[0018] The radial and axial jet nozzles on the annular air pipe generate circulating and upward airflows, respectively, which work in conjunction with the water flow to enhance the impact and turbulence of the water flow, further improving the cleaning effect. Attached Figure Description

[0019] Figure 1 A schematic diagram of a sand cleaning device that uses airflow and water bath in synergistic cleaning.

[0020] Figure 2 Schematic diagram of the hidden sidewall structure of the sand cleaning device that uses airflow and water bath in synergistic cleaning;

[0021] Figure 3 A schematic diagram of the hidden sidewall structure of the sand cleaning device that uses airflow and water bath in synergistic cleaning;

[0022] Figure 4 Another structural diagram of the hidden sidewall of the sand cleaning device that uses airflow and water bath in synergistic cleaning;

[0023] Figure 5 Schematic diagram of the hidden housing structure of the sand cleaning device that uses airflow and water bath in synergistic cleaning;

[0024] Figure 6 Schematic diagram of the hidden housing structure of the sand cleaning device that uses airflow and water bath in synergistic cleaning;

[0025] Figure 7 This is a schematic diagram of the airflow pipeline structure;

[0026] The components in the diagram are named as follows: 1. Sand cylinder base; 2. Side wall; 3. Top cover; 4. Chassis; 5. Perspective lens; 6. Outlet; 7. Support pipe; 8. Multi-hole connector; 9. Branch interface; 10. Filter pipe; 11. Lower spray nozzle; 12. Lower water inlet pipe; 13. Upper water inlet pipe; 14. T-connector; 15. Left branch pipe; 16. Right branch pipe; 17. Upper spray nozzle; 18. Circular air pipe; 19. Air inlet pipe; 20. Radial air jet nozzle; 21. Axial air jet nozzle. Detailed Implementation

[0027] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention. Example 1

[0028] This example discloses a device for synergistic cleaning of sand filters using airflow and water bath. See [link to relevant documentation]. Figures 1 to 7 The device includes a shell to form a cleaning chamber. The shell is equipped with a water bath pipe and an airflow pipe. The water bath pipe is equipped with multiple water spray nozzles for spraying cleaning water into the cleaning chamber, and the airflow pipe is equipped with multiple air jet nozzles for spraying airflow into the cleaning chamber. The water spray nozzles and air jet nozzles are arranged in an array and staggered around the central axis of the cleaning chamber, for simultaneous air bath and water bath cleaning in the cleaning chamber.

[0029] The bottom of the housing is fixedly installed on the sand cylinder base 1.

[0030] The housing includes a side wall 2, a top cover 3 installed above the side wall 2, and a chassis 4 installed below the side wall 2. The top cover 3 is fitted with a viewing mirror 5, and the chassis 4 is provided with an outlet 6.

[0031] A support pipe 7 is installed at the center of the bottom of the cleaning chamber. A multi-hole connector 8 is installed on the support pipe 7. Multiple branch interfaces 9 are distributed around the multi-hole connector 8. Each branch interface 9 is equipped with a filter pipe 10. The end of the filter pipe 10 forms a lower water spray nozzle 11. The upper part of the multi-hole connector 8 is connected to the external water source of the shell through the lower water inlet pipe 12.

[0032] An upper water inlet pipe 13 is installed above the lower water inlet pipe 12. The upper water inlet pipe 13 is connected to the left branch pipe 15 and the right branch pipe 16 via a three-way pipe 14. Multiple upper water spray nozzles 17 are linearly arrayed on the left branch pipe 15 and the right branch pipe 16.

[0033] The airflow pipeline includes an annular air pipe 18 installed in the cleaning chamber. The annular air pipe 18 is connected to an external air source through an air inlet pipe 19. The annular air pipe 18 is provided with multiple radial jet ports 20 circumferentially toward its center and multiple axial jet ports 21 vertically upward.

[0034] During operation, the sand tank components to be cleaned are placed inside the cleaning chamber, ensuring the housing is securely mounted on the sand tank base 1 to prevent shaking during cleaning. Ensure the external water and air sources are connected to the lower water inlet pipe 12 and air inlet pipe 19. Observe the condition inside the cleaning chamber through the viewing window 5. Open the valve of the lower water inlet pipe 12, allowing cleaning water to flow through the lower water inlet pipe 12 into the perforated connector 8, and then through the branch interface 9 into each filter pipe 10. Cleaning water is sprayed out from the lower spray nozzle 11 at the end of the filter pipe 10, providing initial rinsing to the components inside the cleaning chamber. Simultaneously, open the valve of the upper water inlet pipe 13, allowing cleaning water to flow through the upper water inlet pipe 13 into the tee pipe 14, and then into the left branch pipe 15 and right branch pipe 16 respectively. Water jets from the upper nozzles 17 on the left branch pipe 15 and right branch pipe 16 spray water from above, creating a cross-washing effect with the water jets from the lower nozzles 11, further enhancing the cleaning effect and ensuring that all surfaces of the components are thoroughly rinsed by the water flow. The valve on the air inlet pipe 19 is opened, allowing air to enter the annular air pipe 18 through the air inlet pipe 19. The radial jet nozzles 20 on the annular air pipe 18 spray air towards its center, forming an airflow around the central axis of the cleaning chamber, increasing the turbulence of the water flow and ensuring thorough contact between the water and the dirt on the component surfaces, helping to remove the dirt adhering to the surface. Simultaneously, the axial jet nozzles 21 on the annular air pipe 18 spray air upwards in a vertical direction, interacting with the water jets from the lower nozzles 11, further enhancing the impact force of the water flow and improving the cleaning effect. Throughout the entire process, water bath cleaning and air bath cleaning are carried out simultaneously. The coordination of water and air flow makes the water flow in the cleaning chamber more turbulent, creating a comprehensive cleaning effect. The combined action of water and air not only effectively removes dirt from the surface of parts, but also reduces cleaning time and improves cleaning efficiency.

[0035] Although some preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0036] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this application and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A device for synergistic cleaning of sand tanks using airflow and water bath, characterized in that: The device includes a housing to form a cleaning chamber. The housing is provided with a water bath pipe and an airflow pipe. The water bath pipe is provided with multiple water spray nozzles for spraying cleaning water into the cleaning chamber. The airflow pipe is provided with multiple air jet nozzles for spraying airflow into the cleaning chamber. The water spray nozzles and air jet nozzles are arranged in an array and staggered around the central axis of the cleaning chamber for simultaneous air bath and water bath cleaning.

2. The airflow and water bath synergistic cleaning device for sand filters as described in claim 1, characterized in that: The bottom of the housing is fixedly mounted on the sand cylinder base.

3. The airflow and water bath synergistic cleaning device for sand filters as described in claim 1, characterized in that: The housing includes a side wall, a top cover is installed above the side wall and a chassis is installed below the side wall, the top cover is fitted with a viewing mirror and the chassis is provided with an outlet.

4. The airflow and water bath synergistic cleaning device for sand filters as described in claim 1, characterized in that: A support pipe is installed at the center of the bottom of the cleaning chamber. A multi-hole connector is installed on the support pipe. Multiple branch interfaces are distributed circumferentially on the multi-hole connector. Each branch interface is equipped with a filter pipe. The end of the filter pipe forms a lower water spray nozzle. The upper part of the multi-hole connector is connected to an external water source through a lower water inlet pipe.

5. The airflow and water bath synergistic cleaning device for sand filters as described in claim 4, characterized in that: An upper water inlet pipe is installed above the lower water inlet pipe. The upper water inlet pipe is connected to the left branch pipe and the right branch pipe via a T-connector. Multiple upper water spray nozzles are linearly arrayed on the left and right branch pipes.

6. The airflow and water bath synergistic cleaning device for sand filters as described in claim 1, characterized in that: The airflow pipeline includes an annular air pipe installed in the cleaning chamber. The annular air pipe is connected to an external air source through an air inlet pipe. The annular air pipe has multiple radial jet ports arranged circumferentially toward its center and multiple axial jet ports arranged vertically upwards.