A low-temperature-resistant water tank

By introducing a combination structure of rubber lifting auger and electric heating tube into the water tank, along with a monitoring system and support frame, the problem of water tank freezing in low-temperature environments is solved, enabling precise control of water temperature and maintenance of water quality, ensuring stable operation of the water supply system and long service life of the equipment.

CN224336261UActive Publication Date: 2026-06-09WUXI QUANHECHANG ENVIRONMENTAL PROTECTION TECHNOLOGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WUXI QUANHECHANG ENVIRONMENTAL PROTECTION TECHNOLOGY CO LTD
Filing Date
2025-08-08
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

In low-temperature environments, water tanks are prone to freezing, which can lead to cracking and pipe damage, affecting the normal operation of the water supply system, increasing maintenance costs, and potentially causing economic losses.

Method used

It adopts a combination structure of rubber lifting auger and electric heating tube. The monitoring structure monitors the water temperature in real time and controls the operation of the lifting motor and electric heating tube to achieve precise water temperature regulation. Combined with the support frame and diversion hopper design, it ensures that the water temperature in the water tank is maintained within the set threshold to prevent water from freezing.

Benefits of technology

It effectively prevents the water tank from freezing in low-temperature environments, ensures the normal operation of the water supply system, extends equipment life, maintains water quality, and reduces maintenance frequency and economic losses.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to stainless steel water tank technical field, specifically is a water tank of preventing low temperature, including water tank body, monitoring structure and support framework, the inside installation of water tank body has the riser, the top middle position of water tank body supports and installs the lifting motor, installs the rubber lifting auger on the output shaft of lifting motor, rubber lifting augor is located inside the riser, and the bottom end of rubber lifting augor is located in the bottom of riser, the utility model utilizes temperature sensing probe real -time monitoring water temperature, and combines the PLC program control of central control box to lift motor and electric heating tube, realizes accurate temperature control, ensures water temperature to maintain in the set threshold, effectively prevents the freezing of water under low temperature, and the rubber lifting auger is used for lifting low temperature water to the heating area, and the water after heating reflows into the water tank through the filter hole of the shunt hopper, realizes the circulating flow of water, and this circulating flow can not only evenly raise the water temperature in the water tank, but also can prevent the water temperature stratification phenomenon.
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Description

Technical Field

[0001] This utility model belongs to the technical field of stainless steel water tanks, specifically a water tank resistant to low temperatures. Background Technology

[0002] Stainless steel water tanks are a common type of water storage equipment. They are generally made of stainless steel plates joined together by argon arc welding. The tank usually has some reinforcing ribs inside, which can increase the strength and stability of the tank and prevent deformation under water pressure.

[0003] In low-temperature outdoor environments, water freezing can damage water tanks. When the water temperature drops below freezing, the water will freeze and expand, putting enormous pressure on the inner wall of the water tank and pipes. This can lead to water tank rupture and pipe damage, increasing maintenance costs and replacement frequency. After the water freezes, the water tank cannot supply water normally, affecting the normal operation of the building's water supply and drainage system. Water tank freezing can also cause production stoppages and economic losses. Therefore, a low-temperature resistant water tank is proposed to address the above problems. Utility Model Content

[0004] To overcome the shortcomings of existing technologies and address the problems of existing equipment, this utility model proposes a water tank resistant to low temperatures.

[0005] The technical solution adopted by this utility model to solve its technical problem is a low-temperature resistant water tank, including: a water tank body, a monitoring structure and a support frame; a lifting pipe is installed inside the water tank body, a lifting motor is supported and installed at the top middle position of the water tank body, a rubber lifting auger is installed on the output shaft of the lifting motor, the rubber lifting auger is located inside the lifting pipe, and the bottom end of the rubber lifting auger is located at the bottom of the lifting pipe.

[0006] The threaded side of the rubber lifting auger slides in contact with the inner wall of the lifting pipe, and a water inlet is provided at the bottom of the lifting pipe; an annular diversion hopper is fixed to the outer side of the top port of the lifting pipe, and a filter hole is provided on the bottom side of the diversion hopper.

[0007] The inner side of the diversion hopper is a conical surface that is smaller at the top and larger at the bottom. An annular support hopper is fixedly supported on the conical surface of the diversion hopper. A gap is provided between the support hopper and the diversion hopper. An electric heating tube is installed inside the support hopper.

[0008] Preferably, a limiting tube is fixed to the top of the water tank body, the limiting tube is located around the lifting motor, and a second cover plate is fastened to the top of the limiting tube.

[0009] Preferably, a drain pipe is connected to the bottom of the water tank body, and a water inlet pipe is connected to the top side of the water tank body, and the water inlet pipe is connected to the diversion hopper.

[0010] Preferably, a maintenance hole is provided at the top corner of the water tank body, a maintenance pipe is installed on the maintenance hole, and a first cover plate is fastened to the top of the maintenance pipe. The maintenance hole can be used during maintenance and allows maintenance personnel to enter for maintenance.

[0011] Preferably, monitoring structures are installed on the opposing inner walls on both sides of the water tank body. Each monitoring structure includes a connecting plate, which is fixed to the inner wall of the water tank body. A sliding hole is provided inside the connecting plate, and a connecting rod is vertically slidably installed in the sliding hole. A limit cap is fixed to the top of the connecting rod, and a float is fixed to the bottom of the connecting rod. A temperature sensing probe is attached to the bottom side of the float, which can monitor the water temperature in the water tank.

[0012] Preferably, the water tank body has a fixed support frame inside. The support frame consists of multiple support beams arranged intersecting in the X, Y, and Z axis directions. The multiple support beams are used to support and connect the six inner walls of the water tank body. The support frame and the water tank body are fixedly connected, and the overall support and fixation can be achieved.

[0013] Preferably, a level gauge is installed inside the water tank body to detect the water level in the tank, and the detection data is transmitted to the central control box. The central control box is installed on the outside of the water tank body, and the temperature sensor and level gauge inside the water tank body are connected to the central control box via data.

[0014] The advantages of this utility model are:

[0015] This utility model utilizes a temperature sensor to monitor water temperature in real time. Combined with the PLC program in the central control box, it controls the lifting motor and heating element to achieve precise temperature regulation, ensuring that the water temperature is maintained within the set threshold. This effectively prevents water from freezing at low temperatures. The design of the gap between the carrying hopper and the diversion hopper ensures that some water remains in the heating area, preventing the heating element from burning dry and extending the equipment's lifespan. At the same time, it ensures the heating effect and prevents the water in the tank from becoming unusable in low-temperature environments.

[0016] Low-temperature water is lifted to the heating zone by a rubber lifting auger. The heated water then flows back into the water tank through the filter holes of the diversion bucket, achieving water circulation. This circulation not only evenly raises the water temperature in the tank but also prevents water stratification. The filter holes of the diversion bucket filter the water, removing impurities and suspended solids, thus maintaining the cleanliness of the water in the tank. This filtration function not only helps improve water quality but also reduces the impact of impurities on the heating system, extending the service life of the equipment. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of the water tank;

[0019] Figure 2 A schematic diagram of a water tank structure with a second cover plate missing the first cover plate;

[0020] Figure 3 This is a schematic diagram of the internal structure of the water tank.

[0021] Figure 4 A schematic diagram of the heating structure is provided.

[0022] Figure 5 This is a schematic diagram showing the positional relationship between the diversion hopper and the carrying hopper;

[0023] In the diagram: 1. Water tank body; 2. Maintenance pipe; 3. First cover plate; 4. Limiting pipe; 5. Second cover plate; 6. Water inlet pipe; 7. Central control box; 8. Drain pipe; 9. Lifting motor; 10. Monitoring structure; 11. Support frame; 12. Lifting pipe; 13. Water inlet hole; 14. Diverting hopper; 15. Bearing hopper; 16. Heating element; 17. Rubber lifting auger; 18. Filter hole; 101. Connecting plate; 102. Connecting rod; 103. Float ball; 104. Temperature sensor; 105. Limiting cap. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0025] Please see Figure 1-5 As shown, a low-temperature resistant water tank includes: a water tank body 1, a monitoring structure 10, and a support frame 11. A lifting pipe 12 is installed inside the water tank body 1. A lifting motor 9 is supported and installed at the top center of the water tank body 1. A rubber lifting auger 17 is installed on the output shaft of the lifting motor 9. The rubber lifting auger 17 is located inside the lifting pipe 12, and the bottom end of the rubber lifting auger 17 is located at the bottom of the lifting pipe 12.

[0026] The threaded side of the rubber lifting auger 17 slides in contact with the inner wall of the lifting pipe 12, and the bottom of the lifting pipe 12 is provided with a water inlet hole 13; an annular diversion bucket 14 is fixed on the outer side of the top port of the lifting pipe 12, and a filter hole 18 is provided on the bottom side of the diversion bucket 14.

[0027] The inner side of the diversion hopper 14 is a conical surface that is smaller at the top and larger at the bottom. An annular support hopper 15 is fixedly supported on the conical surface of the diversion hopper 14. A gap is provided between the support hopper 15 and the diversion hopper 14. An electric heating tube 16 is installed inside the support hopper 15.

[0028] A limiting pipe 4 is fixed to the top of the water tank body 1. The limiting pipe 4 is located around the lifting motor 9. A second cover plate 5 is fastened to the top of the limiting pipe 4.

[0029] The bottom of the water tank body 1 is connected to a drain pipe 8, and the top side of the water tank body 1 is connected to a water inlet pipe 6. The water inlet pipe 6 is connected to the diversion hopper 14. During normal water intake, water is replenished into the water tank body 1 through the water inlet pipe 6. During the water replenishment process, the water flows through the diversion hopper 14 and is filtered through the filter hole 18. During the drainage process, the water is discharged through the drain pipe 8 for use.

[0030] Under the operation of the lifting motor 9, the rubber lifting auger 17 inside the lifting pipe 12 can be driven to rotate. During the stirring process of the rubber lifting auger 17, the water inside the lifting pipe 12 can be transported upward along the lifting pipe 12. Then, the water in the water tank body 1 enters the lifting pipe 12 through the water inlet 13. The water with a lower temperature is lifted to the top of the lifting pipe 12, and the electric heating tube 16 is also energized to heat it.

[0031] A gap is provided between the carrying hopper 15 and the diversion hopper 14. The flow rate of the gap is less than the drainage flow rate at the top of the lifting pipe 12. In this way, when the rubber lifting auger 17 is working, after the low-temperature water is output upward through the lifting pipe 12, when the water flow is replenished, some water can remain between the carrying hopper 15 and the diversion hopper 14, which can prevent the electric heating tube 16 from burning dry and also ensure the heating effect of the water.

[0032] The heated water flows through the carrying hopper 15 and then into the diversion hopper 14. After passing through the filter hole 18, it falls back into the water tank body 1. This process is repeated to raise the water temperature in the tank and prevent it from dropping. It can also locally regulate the water temperature when the outside environment is low. When the regulated water temperature reaches the set threshold, the lifting motor 9 and the heating element 16 stop operating.

[0033] A maintenance hole is provided at the top corner of the water tank body 1. A maintenance pipe 2 is installed on the maintenance hole. A first cover plate 3 is fastened to the top of the maintenance pipe 2. The maintenance hole can be used during maintenance and allows maintenance personnel to enter for maintenance.

[0034] Monitoring structures 10 are respectively installed on the opposing inner walls of both sides of the water tank body 1. Each monitoring structure 10 includes a connecting plate 101, which is fixed to the inner wall of the water tank body 1. A sliding hole is provided inside the connecting plate 101, and a connecting rod 102 is vertically slidably installed within the sliding hole. A limit cap 105 is fixed to the top of the connecting rod 102, and a float 103 is fixed to the bottom of the connecting rod 102. A temperature sensor 104 is attached to the bottom side of the float 103. The sensor detects the temperature through the sensor. Monitoring structures 10 are provided on both sides of the water tank body 1. A float 103 is provided at the bottom of the connecting rod 102, and a temperature sensor 104 is provided on the bottom side of the float 103. With the help of buoyancy, the float 103 can float on the water surface inside the water tank body 1 to counteract the combined gravity of the connecting rod 102 and the limiting cap 105. When the float 103 floats on the water surface, the temperature sensor 104 is located below the liquid level and can detect the water temperature in the water tank.

[0035] The water tank body 1 is internally fixed with a support frame 11. The support frame 11 consists of multiple support beams arranged intersecting in the X, Y, and Z axis directions. The multiple support beams are used to support and connect the six inner walls of the water tank body 1. The support frame 11 and the water tank body 1 are fixedly connected, and the overall support and fixation can be achieved.

[0036] The water tank body 1 is equipped with a level gauge inside, which can detect the water level in the water tank. The detection data is transmitted to the central control box 7. The central control box 7 is installed on the outside of the water tank body 1. The temperature sensor 104 and the level gauge inside the water tank body 1 are connected to the central control box 7 via data.

[0037] Working principle: Stainless steel water tanks are common water storage containers. To cope with outdoor low-temperature freezing conditions, when the outside environment is low-temperature, it is necessary to maintain the water temperature inside the tank by periodically warming the water. Monitoring structures 10 are set on both sides of the water tank body 1. A float ball 103 is set at the bottom of the connecting rod 102, and a temperature sensor 104 is set on the bottom side of the float ball 103. With the help of buoyancy, the float ball 103 can float on the water surface inside the water tank body 1 to counteract the combined gravity of the connecting rod 102 and the limit cap 105. When the float ball 103 floats on the water surface, the temperature sensor 104 is located below the liquid level, and the water temperature inside the tank can be detected by the temperature sensor 104.

[0038] The detected temperature data is fed back to the central control box 7. A PLC control program is set in the central control box 7. After receiving the detected temperature from the temperature sensor 104, the PLC program makes a judgment based on the temperature threshold set in the PLC program. When the temperature is lower than the threshold, the PLC controls the lifting motor 9 and the heating tube 16 to issue an operation command.

[0039] Under the operation of the lifting motor 9, the rubber lifting auger 17 inside the lifting pipe 12 can be driven to rotate. During the stirring process of the rubber lifting auger 17, the water inside the lifting pipe 12 can be transported upward along the lifting pipe 12. Then, the water in the water tank body 1 enters the lifting pipe 12 through the water inlet 13. The water with a lower temperature is lifted to the top of the lifting pipe 12, and the electric heating tube 16 is also energized to heat it.

[0040] A gap is provided between the carrying hopper 15 and the diversion hopper 14. The flow rate of the gap is less than the drainage flow rate at the top of the lifting pipe 12. In this way, when the rubber lifting auger 17 is working, after the low-temperature water is output upward through the lifting pipe 12, when the water flow is replenished, some water can remain between the carrying hopper 15 and the diversion hopper 14, which can prevent the electric heating tube 16 from burning dry and also ensure the heating effect of the water.

[0041] The heated water flows through the carrying hopper 15 and then into the diversion hopper 14. After passing through the filter hole 18, it falls back into the water tank body 1. This process is repeated to raise the water temperature in the tank and prevent it from dropping. It can also locally regulate the water temperature when the outside environment is low. When the regulated water temperature reaches the set threshold, the lifting motor 9 and the heating element 16 stop operating.

[0042] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0043] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A water tank resistant to low temperatures, characterized in that: include: The water tank body (1), monitoring structure (10) and support frame (11) are provided. A lifting pipe (12) is installed inside the water tank body (1). A lifting motor (9) is supported and installed at the top middle position of the water tank body (1). A rubber lifting auger (17) is installed on the output shaft of the lifting motor (9). The rubber lifting auger (17) is located inside the lifting pipe (12), and the bottom end of the rubber lifting auger (17) is located at the bottom of the lifting pipe (12). The threaded side of the rubber lifting auger (17) slides in contact with the inner wall of the lifting pipe (12), and the bottom of the lifting pipe (12) is provided with a water inlet hole (13); an annular diversion bucket (14) is fixed on the outer side of the top port of the lifting pipe (12), and a filter hole (18) is provided on the bottom side of the diversion bucket (14). The inner side of the diversion hopper (14) is a conical surface with a smaller upper part and a larger lower part. An annular bearing hopper (15) is fixedly supported on the conical surface of the diversion hopper (14). A gap is provided between the bearing hopper (15) and the diversion hopper (14). An electric heating tube (16) is installed inside the bearing hopper (15).

2. The low-temperature resistant water tank according to claim 1, characterized in that: The top of the water tank body (1) is fixed with a limiting tube (4), which is located around the lifting motor (9). The top of the limiting tube (4) is fitted with a second cover plate (5).

3. A low-temperature resistant water tank according to claim 1, characterized in that: The bottom of the water tank body (1) is connected to a drain pipe (8), and the top side of the water tank body (1) is connected to a water inlet pipe (6), which is connected to a diversion hopper (14).

4. A low-temperature resistant water tank according to claim 1, characterized in that: A maintenance hole is provided at the top corner of the water tank body (1), and a maintenance pipe (2) is installed on the maintenance hole. A first cover plate (3) is fastened to the top of the maintenance pipe (2).

5. A low-temperature resistant water tank according to claim 1, characterized in that: Monitoring structures (10) are installed on the opposing inner walls on both sides of the water tank body (1). The monitoring structure (10) includes a connecting plate (101). The connecting plate (101) is fixed on the inner wall of the water tank body (1). A sliding hole is opened inside the connecting plate (101). A connecting rod (102) is vertically slidably installed in the sliding hole. A limit cap (105) is fixed at the top of the connecting rod (102). A float (103) is fixed at the bottom of the connecting rod (102). A temperature sensor (104) is attached to the bottom side of the float (103).

6. A low-temperature resistant water tank according to claim 1, characterized in that: The water tank body (1) is fixed with a support frame (11) inside. The support frame (11) consists of multiple support beams arranged in a cross direction along the X, Y, and Z axes. The multiple support beams are used to support and connect the six inner walls of the water tank body (1).

7. A low-temperature resistant water tank according to claim 1, characterized in that: The water tank body (1) is equipped with a level gauge inside, and a central control box (7) is installed on the outside of the water tank body (1). The temperature sensor (104) and the level gauge inside the water tank body (1) are connected to the central control box (7) via data.