Energy-saving hot water supply equipment and intelligent control method thereof

By designing volume-controlled drainage parts, positioning parts and water stirring parts in the hot water tank, the temperature reduction problem caused by the excessive entry of cold water in existing equipment is solved, and more efficient hot water supply and energy-saving effects are achieved.

CN119958094AInactive Publication Date: 2025-05-09SHENZHEN HAOYONG TECH SERVICE CO LTD
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Patent Information

Application Number
CN202510274640.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-03-10
Publication Date
2025-05-09
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

When the existing energy-saving hot water supply equipment outputs hot water, the cold water enters faster, causing the newly incoming cold water to mix with the unoutput hot water, which reduces the temperature and requires frequent heating, resulting in waste of electricity.

Method used

A hot water tank including a water control drainage member, a positioning member and a water stirring member is designed. The water control drainage member limits the opening size between the drainage plate and the latching partition through the reaction force of the first spring, and slows down the entry speed of cold water; the positioning member realizes the position of the water control assembly through a rotating threaded rod and a positioning plate; the water stirring member drives the water stirring plate to rotate through a rolling roller and a transmission gear to promote the mixing and preheating of cold water and hot water.

Benefits of technology

By slowing down the mixing rate of cold water and hot water and maintaining the internal temperature, the demand for repeated heating is reduced, the efficiency of hot water supply is improved, and the power consumption is reduced.

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Abstract

The invention discloses energy-saving type hot water supply equipment, and relates to the technical field of energy-saving type hot water supply equipment.The energy-saving type hot water supply equipment comprises a hot water tank, the hot water tank comprises a hot water tank body, a regulation and control panel, a tubular heater and a sealing back plate, a mounting assembly is arranged on the back of the hot water tank body, and the mounting assembly comprises a clamping frame and a mounting plate; a water control assembly is arranged in the hot water tank body and comprises a quantity control drainage part, a positioning part and a water stirring part. By arranging the quantity control drainage part, when hot water is output and cold water is input, the size of an opening between a drainage plate and a clamping partition plate is limited through the counter-acting force of a first spring so as to reduce the entering speed, so that the mixing speed of the cold water and the hot water is reduced so as to relieve and maintain the internal temperature; the situation that rapid temperature drop caused by too fast mixing needs to be recovered through rapid heating is prevented, and therefore repeated high-power heating is caused, equipment is not used for a long time, electricity is wasted, and energy is not saved.
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Description

Technical Field

[0001] The present invention relates to the technical field of energy-saving hot water supply equipment, and in particular to energy-saving hot water supply equipment and an intelligent control method thereof. Background Art

[0002] In production and life, hot water is five times more effective than cold water in cleaning and sterilization. It is not only comfortable but also ensures health. In the survey, we found that 90.8% of households believe that they need to add hot water in their lives, 84.2% of households agree that hot water is five times healthier than cold water, and 60% of consumers believe that hot water should be extended to housework such as washing clothes and cooking. Therefore, it is extremely urgent to use hot water in life, so we need an energy-saving hot water supply equipment.

[0003] In the prior art, a Chinese patent document with a publication number of CN212339397U is proposed to solve the above technical problems. The technical solution disclosed in the patent document is as follows: an energy-saving hot water supply device, including a safety device, a water outlet, a device body, a valve, an anti-dry burning device, an arc heating tube, a switch button and a control setting; the device body adopts a rectangular structure, one end of the device body is fixedly provided with a reserved hole water inlet, the external interface of the water inlet is connected to one end of the water inlet pipe, the other end of the water inlet pipe is connected to the external water flow, a valve is arranged in the middle position of the water inlet pipe, one input end of the filter device is connected to the internal interface of the water inlet, one output end of the filter device is connected to one end of the anti-dry burning device, and the arc heating tube is connected to one end of the power cord. The present invention adopts an activated carbon adsorption device for the filter device and adopts a layered arrangement, so as to effectively improve the efficiency of the activated carbon adsorption device. At the same time, the present invention can greatly enhance the heating effect of the equipment by arranging the arc heating tube, and at the same time better play an energy-saving role.

[0004] However, there may be a problem that when the device is outputting hot water, the supplementary cold water enters at a faster speed, which leads to the problem that the mixing speed of the newly entered cold water and the hot water that has not been output is reduced rapidly. Summary of the invention

[0005] The object of the present invention is to provide an energy-saving hot water supply device and an intelligent control method thereof to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is: An energy-saving hot water supply device and an intelligent control method thereof, comprising a hot water tank, the hot water tank comprising a hot water tank body, a control panel, a tubular heater and a sealing back plate, a mounting assembly is arranged at the back of the hot water tank body, the mounting assembly comprises a clamping frame and a mounting plate, and a water control assembly is arranged inside the hot water tank body; The water control assembly includes a water control drainage component, a positioning component and a water stirring component, and the water control drainage component includes a positioning partition, a block, a filter screen, a drainage plate and a first spring; The positioning member includes a connecting plate, a supporting rod, a threaded rod, a positioning plate, a limiting rod and a second spring; The water stirring member comprises a rolling roller, a transmission gear, a U-shaped rod, a gear rod and a water stirring plate.

[0007] A further improvement of the technical solution of the present invention is that the control panel is fixedly installed on the front side of the hot water tank body, the tubular heater is fixedly installed inside the hot water tank body, and the sealing back plate screws are installed on the back side of the hot water tank body.

[0008] A further improvement of the technical solution of the present invention is that: the clamping frame bolts are installed on the back of the hot water tank body, the mounting plate is fixedly installed on the surface of the clamping frame, and the surface of the mounting plate is provided with mounting holes. By setting up the mounting assembly, it is convenient for lifting and the subsequent individual disassembly of the hot water tanks.

[0009] A further improvement of the technical solution of the present invention is that: the positioning partition is snap-fitted and installed on the inner side surface of the tubular heater, the blocking block is snap-fitted and installed on the surface of the positioning partition, the filter is plug-fitted and installed on the top surface of the positioning partition, the drain plate is plug-fitted and installed inside the positioning partition, and the first spring is fixedly installed on the bottom surface of the positioning partition. By arranging a control drainage component, when hot water is output and cold water is input, the reaction force of the first spring can be used to limit the size of the opening between the drain plate and the positioning partition to reduce the entry speed, thereby slowing down the mixing speed of cold water and hot water to alleviate and maintain the internal temperature, preventing excessive mixing from causing a rapid drop in temperature that requires rapid heating to recover, and then causing repeated high-power heating that does not utilize the long-term use of the equipment and wastes electricity without saving energy.

[0010] A further improvement of the technical solution of the present invention lies in that: the connecting plate is fixedly installed on the bottom surface of the locking partition and is provided with two left and right groups, the supporting rod is fixedly installed between the two groups of connecting plates and is provided with two front and rear groups, the threaded rod is threadedly installed on the surface of the connecting plate, the positioning plate is slidably installed on one end of the threaded rod through the connecting block, the limiting rod passes through the connecting plate and is fixedly installed on the surface of the positioning plate, the second spring is fixedly installed on the inner side of the positioning plate, and by setting a positioning piece, the threaded rod can be rotated to cooperate with the positioning rod to drive the positioning plate to move outward, so that the position of the overall water control component can be fixed by the interference bracket, and a second spring is set between the positioning plate and the connecting plate, which can improve the stability of the interference on the other side under the reaction force of the spring.

[0011] A further improvement of the technical solution of the present invention is that: the tumbling roller is plugged into the bottom of the connecting plate, the transmission gear is fixedly mounted on the inner shaft surface of the tumbling roller, the U-shaped rod is fixedly mounted on the surface of the supporting rod, the gear rod is plugged into the surface of the U-shaped rod, and the water-stirring plate is fixedly mounted on the surface of the gear rod. Through the water-stirring part, when new cold water falls, its impact force can be utilized to realize the rotation of the tumbling roller, thereby promoting the flow of water while driving the transmission gear to rotate, thereby driving the gear rod to realize the rotation of the water-stirring plate under the meshing action, and then promoting the mixing of new cold water and retained hot water for preheating in advance, making the reheating efficiency faster to achieve energy-saving effect.

[0012] A further improvement of the technical solution of the present invention is that one end of the first spring is fixedly connected to the surface of the drain plate, one end of the second spring is fixedly connected to the surface of the connecting plate, the tooth block of the gear rod is meshingly connected with the transmission gear, and the gear rod is driven to rotate by setting a transmission gear and driving it through transmission, without the need for a motor.

[0013] An intelligent control method for energy-saving hot water supply equipment includes the following steps: Step 1: installing a water control component inside a hot water tank body, fixing the position of a clamping frame through mounting holes on a mounting plate, installing the hot water tank body on the clamping frame, connecting a water inlet pipe and a water outlet pipe, and plugging in a power supply; Step 2: Start the central control host and open the control panel through the power supply system. Open the water inlet valve by operating the control panel. Set the water temperature and heating time by operating the control panel. After heating to the specified temperature, open the faucet to drain water. Step 3: After the hot water is output, new cold water enters the storage bin of the hot water tank through the pipe. The cold water first passes through the filter to filter out impurities, and then continues to flow down the drainage plate to enter the bottom of the blocking partition. When falling, the water will impact the tumbling roller to make it tumble and drive the transmission gear to rotate. Under the action of meshing, the gear rod rotates and drives the water stirring plate to rotate, thereby stirring the cold water and hot water to mix and achieve preheating.

[0014] A further improvement of the technical solution of the present invention is that the water control component in step one is achieved by clamping the positioning baffle on the bracket of the tubular heater, and after adjusting the position, rotating the threaded rod to move the positioning plate toward the bracket of the tubular heater to achieve interference positioning.

[0015] A further improvement of the technical solution of the present invention is that part of the heating tubes of the tubular heater are located between the support rods, and one end of the tubular heater passes through a blocking partition and is blocked and sealed by a blocking block.

[0016] Due to the adoption of the above technical solution, the present invention has the following technical advances compared with the prior art: 1. The present invention provides an energy-saving hot water supply device and an intelligent control method thereof. By setting a controlled drainage component, when hot water is output and cold water is input, the reaction force of a first spring can be used to limit the size of the opening between the drainage plate and the blocking partition to reduce the speed of entry, thereby slowing down the mixing speed of cold water and hot water to alleviate and maintain the internal temperature, preventing excessive mixing from causing a rapid drop in temperature that requires rapid heating to recover, thereby causing repeated high-power heating that does not utilize the long-term use of the equipment and wastes electricity without saving energy.

[0017] 2. The present invention provides an energy-saving hot water supply device and an intelligent control method thereof. By setting a positioning piece, the threaded rod can be rotated to cooperate with the positioning rod to drive the positioning plate to move outward, so that the position of the overall water control component can be fixed by the interference bracket, and a second spring is set between the positioning plate and the connecting plate, which can improve the stability of the interference on the other side under the reaction force of the spring.

[0018] 3. The present invention provides an energy-saving hot water supply equipment and an intelligent control method thereof. Through the water stirring part, when new cold water falls, its impact force can be used to realize the rotation of the tumbling roller, thereby promoting the flow of water while driving the transmission gear to rotate, so that the gear rod can be driven to realize the rotation of the water stirring plate under the meshing action, thereby promoting the mixing of new cold water and the retained hot water for early preheating, making the reheating efficiency faster to achieve the effect of energy saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a rear view structural schematic diagram of the present invention; Figure 3 It is a schematic diagram of the cross-sectional structure of the present invention; Figure 4 It is a schematic diagram of the structure of the water control component of the present invention; Figure 5 It is a schematic diagram of the structure of the controlled drainage member of the present invention from a top view; Figure 6 It is a bottom view structural diagram of the volume control drainage member of the present invention; Figure 7 It is a schematic diagram of the structure of the positioning member and the water stirring member of the present invention; Figure 8 For the present invention Figure 7 A schematic diagram of the enlarged structure at point A; Fig. 9 It is a schematic diagram of the intelligent control structure of the present invention.

[0020] In the figure: 1. Hot water tank; 2. Installation components; 3. Water control components; 11. Hot water tank body; 12. Control panel; 13. Tubular heater; 14. Sealing back plate; 21. Clamping frame; 22. Mounting plate; 23. Mounting hole; 31. Controlled drainage component; 311. Clamping partition; 312. Clamping block; 313. Filter screen; 314. Drainage board; 315. First spring; 32. Positioning member; 321. Connecting plate; 322. Support rod; 323. Threaded rod; 324. Positioning plate; 325. Limiting rod; 326. Second spring; 33. Water stirring part; 331. Tumbling roller; 332. Transmission gear; 333. U-shaped rod; 334. Gear rod; 335. Water stirring plate. DETAILED DESCRIPTION

[0021] The present invention is further described in detail below in conjunction with embodiments: Example 1 like Figure 1-9 As shown, the present invention provides an energy-saving hot water supply device and an intelligent control method thereof, including a hot water tank 1, the hot water tank 1 includes a hot water tank body 11, a control panel 12, a tubular heater 13 and a sealing back plate 14, a mounting assembly 2 is arranged on the back of the hot water tank body 11, the mounting assembly 2 includes a clamping frame 21 and a mounting plate 22, and a water control assembly 3 is arranged inside the hot water tank body 11; the water control assembly 3 includes a control drainage member 31, a positioning member 32 and a water stirring member 33, the control drainage member 31 includes a clamping partition 311, a clamping block 312, a filter screen 313, a drainage plate 314 and a first spring 315; the positioning member 32 includes a connecting plate 321, a support rod 331, and a support rod 332. 22. threaded rod 323, positioning plate 324, limiting rod 325 and second spring 326; the water stirring member 33 includes a tumbling roller 331, a transmission gear 332, a U-shaped rod 333, a gear rod 334 and a water stirring plate 335. By setting the control drainage member 31, when hot water is output and cold water is input, the reaction force of the first spring 315 can be used to limit the opening size between the drainage plate 314 and the blocking partition 311 to reduce the entry speed, thereby slowing down the mixing speed of cold water and hot water to alleviate and maintain the internal temperature, preventing excessive mixing from causing a rapid drop in temperature that requires rapid heating to recover, and then causing repeated high-power heating that does not utilize the long-term use of the equipment and wastes electricity without saving energy.

[0022] Example 2 like Figure 1-9As shown, on the basis of Example 1, the present invention provides a technical solution: preferably, the control panel 12 is fixedly installed on the front side of the hot water tank body 11, the tubular heater 13 is fixedly installed inside the hot water tank body 11, the sealing back plate 14 is screwed to the back side of the hot water tank body 11, the clamping frame 21 is bolted to the back of the hot water tank body 11, the mounting plate 22 is fixedly installed on the surface of the clamping frame 21, the surface of the mounting plate 22 is provided with a mounting hole 23, the positioning partition 311 is clamped and installed on the inner side of the tubular heater 13, and the clamping block 312 is clamped and installed on the positioning partition 311 The filter screen 313 is plugged into the top surface of the positioning partition 311, the drain plate 314 is plugged into the inside of the positioning partition 311, the first spring 315 is fixedly installed on the bottom surface of the positioning partition 311, the connecting plate 321 is fixedly installed on the bottom surface of the positioning partition 311 and is provided with two groups on the left and right, the support rod 322 is fixedly installed between the two groups of connecting plates 321 and is provided with two groups on the front and back, the threaded rod 323 is threadedly installed on the surface of the connecting plate 321, the positioning plate 324 is slidably installed on one end of the threaded rod 323 through the connecting block, and the limiting rod 325 is fixed through the connecting plate 321 The second spring 326 is fixedly mounted on the surface of the positioning plate 324, the second spring 326 is fixedly mounted on the inner side of the positioning plate 324, the rolling roller 331 is plugged and mounted on the bottom of the connecting plate 321, the transmission gear 332 is fixedly mounted on the inner shaft surface of the rolling roller 331, the U-shaped rod 333 is fixedly mounted on the surface of the supporting rod 322, the gear rod 334 is plugged and mounted on the surface of the U-shaped rod 333, the water stirring plate 335 is fixedly mounted on the surface of the gear rod 334, the rolling roller 331 is plugged and mounted on the bottom of the connecting plate 321, the transmission gear 332 is fixedly mounted on the inner shaft surface of the rolling roller 331, the U-shaped rod 33 The gear rod 334 is fixedly mounted on the surface of the support rod 322, the gear rod 334 is plugged and mounted on the surface of the U-shaped rod 333, and the water stirring plate 335 is fixedly mounted on the surface of the gear rod 334. When new cold water falls, the water stirring member 31 can utilize its impact force to realize the rotation of the tumbling roller 331, thereby promoting the flow of water and driving the transmission gear 332 to rotate, thereby driving the gear rod 334 to realize the rotation of the water stirring plate 335 under the meshing action, thereby promoting the mixing of new cold water and the retained hot water for preheating in advance, making the reheating efficiency faster to achieve the effect of energy saving.

[0023] Example 3 like Figure 1-9 As shown, based on Embodiment 1-2, the present invention provides a technical solution: an intelligent control method for energy-saving hot water supply equipment, comprising: Step 1: Install the water control assembly 3 inside the hot water tank body 11, fix the position of the clamping frame 21 through the mounting holes 23 on the mounting plate 22, install the hot water tank body 11 on the clamping frame 21, connect the water inlet pipe and the water outlet pipe, and plug in the power supply; Step 2: Start the central control host and open the control panel 12 through the power supply system, open the water inlet valve by operating the control panel 12, set the water temperature and heating time by operating the control panel 12, and open the faucet to drain water after heating to the specified temperature; Step 3: After the hot water is output, new cold water enters the storage bin of the hot water tank body 11 through the pipe. The cold water first passes through the filter 313 to filter out impurities, and then continues to flow down the drainage plate 314 to enter the bottom of the blocking partition 311. When falling, the water will impact the rolling roller 31 to make it roll and drive the transmission gear 332 to rotate. Under the action of meshing, the gear rod 334 rotates and drives the water stirring plate 335 to rotate, so that the cold water and hot water can be stirred to mix and achieve preheating; The water control component 3 in step one is achieved by clamping the locking partition 311 on the bracket of the tubular heater 13. After adjusting the position, the threaded rod 323 is rotated to move the positioning plate 324 toward the bracket of the tubular heater 13 to achieve interference positioning. Part of the heating tube of the tubular heater 13 is located between the support rods 322, and one end of the tubular heater 13 passes through the locking partition 311 and is locked and sealed by the clamping block 312.

[0024] The following is a detailed description of the working principle of energy-saving hot water supply equipment and its intelligent control method.

[0025] like Figure 1-9 As shown, when the energy-saving hot water supply device is used, the water control component 3 is installed inside the hot water tank body 11, the position of the clamping frame 21 is fixed by the mounting hole 23 on the mounting plate 22, the hot water tank body 11 is installed on the clamping frame 21, the water inlet pipe and the water outlet pipe are connected and the power is plugged in at the same time; the device is started and the water inlet valve is opened, and the water temperature and heating time are set by operating the control panel 12. After heating to the specified temperature, the faucet can be opened to drain water; after the hot water is output, the new cold water enters the storage bin of the hot water tank body 11 through the pipeline, and the cold water first passes through the filter 313 to filter out impurities, and continues to flow down to press the drainage plate 314 to enter the bottom of the blocking partition 311. When falling, the water will impact the rolling roller 31 to make it roll and drive the transmission gear 332 to rotate. Under the action of meshing, the gear rod 334 rotates and drives the water stirring plate 335 to rotate, so that the cold water and hot water can be stirred to mix and achieve preheating.

[0026] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. An energy-saving hot water supply device, comprising a hot water tank (1), wherein the hot water tank (1) comprises a hot water tank body (11), a control panel (12), a tubular heater (13) and a sealing back plate (14), characterized in that: The back of the hot water tank body (11) is provided with a mounting assembly (2), the mounting assembly (2) comprising a clamping frame (21) and a mounting plate (22), and the interior of the hot water tank body (11) is provided with a water control assembly (3); The water control assembly (3) comprises a controlled drainage component (31), a positioning component (32) and a water stirring component (33); the controlled drainage component (31) comprises a positioning partition (311), a clamping block (312), a filter screen (313), a drainage plate (314) and a first spring (315); The positioning member (32) comprises a connecting plate (321), a support rod (322), a threaded rod (323), a positioning plate (324), a limiting rod (325) and a second spring (326); The water stirring member (33) comprises a rolling roller (331), a transmission gear (332), a U-shaped rod (333), a gear rod (334) and a water stirring plate (335).

2. The energy-saving hot water supply device according to claim 1, characterized in that: The control panel (12) is fixedly mounted on the front side of the hot water tank body (11), the tubular heater (13) is fixedly mounted inside the hot water tank body (11), and the sealing back plate (14) is screwed onto the back side of the hot water tank body (11).

3. An energy-saving hot water supply device according to claim 2, characterized in that: The clamping frame (21) is bolted to the back of the hot water tank body (11), the mounting plate (22) is fixedly mounted on the surface of the clamping frame (21), and a mounting hole (23) is provided on the surface of the mounting plate (22).

4. The energy-saving hot water supply device according to claim 2, characterized in that: The locking partition (311) is mounted on the inner side of the tubular heater (13), the locking block (312) is mounted on the surface of the locking partition (311), the filter screen (313) is plugged into the top surface of the locking partition (311), the drain plate (314) is plugged into the interior of the locking partition (311), and the first spring (315) is fixedly mounted on the bottom surface of the locking partition (311).

5. The energy-saving hot water supply device according to claim 4, characterized in that: The connecting plate (321) is fixedly mounted on the bottom surface of the positioning partition (311) and is provided with two left and right groups; the supporting rod (322) is fixedly mounted between the two groups of connecting plates (321) and is provided with two front and rear groups; the threaded rod (323) is threadedly mounted on the surface of the connecting plate (321); the positioning plate (324) is slidably mounted on one end of the threaded rod (323) via a connecting block; the limiting rod (325) passes through the connecting plate (321) and is fixedly mounted on the surface of the positioning plate (324); and the second spring (326) is fixedly mounted on the inner side surface of the positioning plate (324).

6. The energy-saving hot water supply device according to claim 5, characterized in that: The rolling roller (331) is plugged and installed on the bottom of the connecting plate (321), the transmission gear (332) is fixedly installed on the inner shaft surface of the rolling roller (331), the U-shaped rod (333) is fixedly installed on the surface of the supporting rod (322), the gear rod (334) is plugged and installed on the surface of the U-shaped rod (333), and the water stirring plate (335) is fixedly installed on the surface of the gear rod (334).

7. The energy-saving hot water supply device according to claim 6, characterized in that: One end of the first spring (315) is fixedly connected to the surface of the drain plate (314), one end of the second spring (326) is fixedly connected to the surface of the connecting plate (321), and the tooth block of the gear rod (334) is meshingly connected to the transmission gear (332).

8. An intelligent control method for energy-saving hot water supply equipment according to any one of claims 1 to 7, characterized in that: The following steps are involved: Step 1: Install the water control assembly (3) inside the hot water tank body (11), fix the position of the clamping frame (21) through the mounting hole (23) on the mounting plate (22), install the hot water tank body (11) on the clamping frame (21), connect the water inlet pipe and the water outlet pipe, and plug in the power supply; Step 2: Start the central control host and open the control panel (12) through the power supply system, open the water inlet valve by operating the control panel (12), and then set the water temperature and heating time by operating the control panel (12). After heating to the specified temperature, open the faucet to drain water; Step 3: After the hot water is output, new cold water enters the storage bin of the hot water tank body (11) through the pipe. The cold water first passes through the filter (313) to filter out impurities, and then continues to flow down the drainage plate (314) to enter the bottom of the blocking partition (311). When falling, the water will impact the rolling roller (31) to make it roll and drive the transmission gear (332) to rotate. Under the action of meshing, the gear rod (334) will rotate and drive the water stirring plate (335) to rotate, so that the cold water and hot water can be stirred to mix and achieve preheating.

9. The intelligent control method of energy-saving hot water supply equipment according to claim 8, characterized in that: The water control component (3) in step one is achieved by clamping the clamping partition (311) on the bracket of the tubular heater (13), and rotating the threaded rod (323) after adjusting the position so that the positioning plate (324) moves toward the bracket of the tubular heater (13) to achieve interference positioning.

10. The intelligent control method of energy-saving hot water supply equipment according to claim 9, characterized in that: Part of the heating tubes of the tubular heater (13) are located between the support rods (322), and one end of the tubular heater (13) passes through the locking partition (311) and is locked and sealed by the locking block (312).

Citation Information

Patent Citations

  • Energy-saving hot water supply device

    CN212339397U