Non-negative pressure water supply steady flow tank with self-cleaning function

Abstract

The utility model discloses a non-negative pressure water supply steady flow tank with a self-cleaning function, which comprises a steady flow tank, a rotary sand blasting gun capable of blasting a sand-water mixture into the steady flow tank is arranged at the top of the steady flow tank, and a front mixing type water sand blasting device for providing the sand-water mixture for the rotary sand blasting gun is arranged outside the steady flow tank. The front mixing type water sand blasting device conveys a sand-water mixture to a rotary sand blasting gun through a high-pressure sand water pipe, a sand blasting valve is arranged on the high-pressure sand water pipe, a T-shaped tee joint is connected to a vertical water outlet pipe, a horizontal water outlet of the T-shaped tee joint is connected with a water inlet of a secondary water supply pressure pump through a secondary water supply pipe, and a water supply valve is arranged on the secondary water supply pipe. A vertical water outlet of the T-shaped tee joint is connected with a blow-off pipe, and a blow-off valve is arranged on the blow-off pipe. The non-negative pressure water supply steady flow tank with the self-cleaning function can deeply clean the interior of the steady flow tank and remove various stubborn dirt attached to the inner wall of the steady flow tank, and has the advantages of being simple in structure, convenient to use, good in cleaning effect and the like.

Description

Technical Field

[0001] This utility model relates to a flow stabilizer used in a negative pressure-free water supply system, and more particularly to a flow stabilizer with a self-cleaning function for negative pressure-free water supply. Background Technology

[0002] A flow stabilizer tank is an important water storage container used in negative pressure water supply or booster water supply systems. After long-term use, a large amount of dirt accumulates on the inner wall of the flow stabilizer tank. Since flow stabilizers usually do not have manholes or handholes, it is difficult to thoroughly clean the inside of the flow stabilizer tank. CN 211285818 U discloses a self-cleaning and disinfecting water supply system, which includes a water supply pipe, a water supply branch pipe, a flow stabilizer tank, a water pump, an outlet pipe, and a cleaning water gun. The water supply pipe, flow stabilizer tank, water pump, and outlet pipe are connected in sequence, and the water supply branch pipe serves as a bypass to connect to the water supply pipe and water pump respectively. The nozzle of the cleaning water gun is placed inside the flow stabilizer tank, and the inlet pipe of the cleaning water gun is connected to the outlet pipe. The flow stabilizer tank is equipped with a drain valve at the bottom, a pre-tank valve at the inlet, and a post-tank valve at the outlet. The water supply branch pipe is equipped with a branch pipe valve, and the cleaning water gun inlet pipe is equipped with a water gun valve. This self-cleaning disinfection water supply system uses a cleaning water gun to rinse the inside of the flow stabilizing tank. However, rinsing with clean water is insufficient to remove the viscous dirt adhering to the inner wall of the flow stabilizing tank. Long-term adhesion of this viscous dirt to the tank can produce an odor and affect water quality. To overcome this deficiency, CN 216839701 U discloses a maintenance-friendly negative pressure-free water supply device. This device includes a support base plate, a flow stabilizing tank, a water inlet channel, a pressure gauge, a vacuum suppressor, and a water pump. The pressure gauge is located on top of the flow stabilizing tank, which is positioned above the support base plate. A support frame is fixedly connected to the top of the flow stabilizing tank, and a cleaning liquid tank and a water pump are fixedly connected to the top of the support frame. The cleaning liquid tank is located to the right of the water pump. A cleaning mechanism is installed inside the flow stabilizing tank, comprising a motor housing and cleaning components. An input motor is fixedly connected to the left side of the inner wall of the motor housing. This invention relates to the field of water supply equipment technology. This easy-to-maintain negative pressure water supply system uses a pump to pump cleaning fluid into the flow stabilizing tank. An input motor then drives a cleaning brush to clean the inner wall of the tank. During cleaning, the brush slides on a circular support frame, allowing cleaning even in areas where the tank's inner diameter decreases. While this system can scrape and clean viscous deposits from the tank's inner wall, the cleaning components inside the tank cannot clean themselves. In particular, the circular support frame and cleaning brush can accumulate dirt, hindering the maintenance of clean water. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a pressure-stabilizing tank for negative pressure water supply with self-cleaning function. This pressure-stabilizing tank can perform deep cleaning of the inside of the pressure-stabilizing tank and remove various stubborn dirt adhering to the inner wall of the pressure-stabilizing tank. It has the advantages of simple structure, convenient use and good cleaning effect.

[0004] The technical solution adopted to solve the technical problem is as follows: A pressure-stabilizing tank for negative pressure water supply with self-cleaning function, comprising a pressure-stabilizing tank, a vacuum suppressor and an inlet pipe for receiving municipal tap water at the top of the pressure-stabilizing tank, an inlet valve on the inlet pipe, a vertical outlet pipe at the bottom of the pressure-stabilizing tank, a rotary sandblasting gun at the top of the pressure-stabilizing tank for spraying a sand-water mixture into the tank, a pre-mixing water sandblasting device outside the pressure-stabilizing tank for supplying a sand-water mixture to the rotary sandblasting gun, the pre-mixing water sandblasting device supplying the sand-water mixture to the rotary sandblasting gun through a high-pressure sand-water pipe, a sandblasting valve on the high-pressure sand-water pipe, a T-shaped tee connected to the vertical outlet pipe, the horizontal outlet of the T-shaped tee connected to the inlet of a secondary water supply booster pump through a secondary water supply pipe, a supply valve on the secondary water supply pipe, and the vertical outlet of the T-shaped tee connected to a sewage pipe, with a sewage valve on the sewage pipe.

[0005] As a further improvement of this utility model: the water jetting device includes a high-pressure water pump and a positive pressure sand storage tank. The positive pressure sand storage tank is equipped with a pressurized water pipe and a water-sand output pipe. The water-sand output pipe is equipped with a sand mixing valve. The sand mixing valve is equipped with a high-pressure water inlet, a sand-grinding inlet connected to the water-sand output pipe, and a high-pressure sand-water output port connected to the high-pressure sand-water pipe. The pressurized water pipe on the positive pressure sand storage tank and the high-pressure water inlet of the sand mixing valve are respectively connected to the output pipeline of the high-pressure water pump. The water inlet of the high-pressure water pump is connected to the municipal tap water pipe through a cleaning water pipe. A cleaning valve is equipped on the cleaning water pipe.

[0006] As a further improvement of this utility model: the rotary sandblasting gun is a horn-shaped cleaning ball that can rotate automatically under water pressure.

[0007] As a further improvement of this utility model: a sand-accumulating flushing pipe is also provided at the bottom of the flow stabilizing tank, which can spray axial water flow to the bottom of the tank. The sand-accumulating flushing pipe is connected to the output pipeline of the high-pressure water pump through the flushing water pipe.

[0008] As a further improvement of this utility model: the flushing water pipe and the vertical water outlet pipe are respectively installed at both ends of the flow stabilizing tank, and the outlet of the flushing water pipe points in the direction of the vertical water outlet pipe.

[0009] As a further improvement of this utility model: the positive pressure sand storage tank is a vertical sand storage tank, with a sand filling port at the upper end of the vertical sand storage tank, and a sealing blind plate that can close the sand filling port is installed at the sand filling port, and the pressurized water pipe and the water and sand output pipe are fixed on the sealing blind plate.

[0010] Beneficial Effects: This utility model's self-cleaning pressure-free water supply stabilizing tank utilizes a rotating sand-water mixture sprayed into the tank from the top. A pre-mixing water sandblasting device supplies the mixture to the rotating sand-water gun outside the tank. A T-shaped tee is connected to the vertical outlet pipe, with its horizontal outlet connected to the secondary water supply booster pump inlet via a secondary water supply pipe. The vertical outlet of the T-shaped tee is connected to the drain pipe. During cleaning, the rotating sand-water mixture is sprayed into the tank, using the abrasive particles to wash and polish the inner wall, removing dirt. The removed dirt, abrasive particles, and water then enter the vertical outlet pipe. Under the influence of gravity, the water flows through the vertical outlet of the T-shaped tee into the drain pipe and is finally discharged from the flow stabilizer tank, thus achieving the purpose of deep cleaning of the inside of the flow stabilizer tank. Because water blasting is used to clean the dirt, it overcomes the drawback of existing technologies where high-pressure water cannot completely clean viscous dirt. At the same time, the sand-water mixture rebounding from the inner wall of the flow stabilizer tank can also flush the rotating sandblasting gun itself, achieving a cleaning effect. This overcomes the drawback of existing technologies that cannot clean the cleaning components themselves. Therefore, the flow stabilizer tank with self-cleaning function for negative pressure water supply of this utility model can deeply clean the inside of the flow stabilizer tank, remove various stubborn dirt adhering to the inner wall of the flow stabilizer tank, has a small cleaning dead angle, and has the advantages of simple structure, convenient use, and good cleaning effect. The pre-mixing water sandblasting device includes a high-pressure water pump and a positive-pressure sand storage tank. The positive-pressure sand storage tank is equipped with a pressurized water pipe and a sand-water output pipe. The sand-water output pipe is equipped with a mixing valve, which has a high-pressure inlet, a sand-grinding inlet connected to the sand-water output pipe, and a high-pressure sand-water output port connected to the high-pressure sand-water pipe. The pressurized water pipe on the positive-pressure sand storage tank and the high-pressure inlet of the mixing valve are respectively connected to the output pipe of the high-pressure water pump. The inlet of the high-pressure water pump is connected to the municipal water supply pipe through a cleaning water pipe, and a cleaning valve is installed on the cleaning water pipe. This technical feature allows the use of municipal tap water to produce the high-pressure sand-water mixture required for cleaning during the cleaning process. Furthermore, the rotary sandblasting gun is a horn-shaped cleaning ball that rotates automatically under water pressure. During the cleaning process, the horn-shaped cleaning ball uses multiple nozzles to spray the sand-water mixture from different angles, resulting in smaller cleaning dead zones and more thorough cleaning. Because it adopts the technical feature of having a sand-collecting flushing pipe at the bottom of the stabilizing tank that can spray axial water flow to the bottom of the tank, and the sand-collecting flushing pipe is connected to the output pipeline of the high-pressure water pump through the flushing water pipe, the water flow sprayed from the sand-collecting flushing pipe is used to flush the sewage and sand at the bottom of the stabilizing tank, so as to avoid sand accumulation at the bottom of the stabilizing tank after cleaning, which would affect the water quality and the normal operation of the secondary water supply booster pump.Because the flushing water pipe and the vertical outlet water pipe are respectively located at both ends of the flow stabilizing tank, with the outlet of the flushing water pipe pointing towards the vertical outlet water pipe, the abrasive and wastewater fall directly into the drain pipe under gravity and are discharged from the drain pipe, minimizing the amount of abrasive and wastewater entering the secondary water supply booster pump. The positive pressure sand storage tank is a vertical sand storage tank with a sand filling port at the top. A sealing blind plate is installed at the sand filling port to close it, and the pressurized water pipe and water-sand output pipe are fixed to the sealing blind plate. This facilitates the use of the pre-mixing water sandblasting device with the flow stabilizing tank, making the structure of this self-cleaning, negative pressure-free water supply flow stabilizing tank more compact and easier to use. Attached Figure Description

[0011] The following is a detailed description of the pressure-stabilizing tank for negative pressure water supply with self-cleaning function according to the present invention, with reference to the accompanying drawings.

[0012] Figure 1 This is a schematic diagram of the working principle of the pressure-stabilizing tank for negative pressure water supply with self-cleaning function of this utility model;

[0013] Figure 2 This is an enlarged structural schematic diagram of the pre-mixing water sandblasting device in the pressure-free water supply tank with self-cleaning function of this utility model. Detailed Implementation

[0014] like Figure 1 As shown, the present invention discloses a pressure-stabilizing tank for a self-cleaning, negative-pressure-free water supply, comprising a pressure-stabilizing tank 2. A vacuum suppressor 11 and a water inlet pipe 8 for receiving municipal tap water are located at the top of the pressure-stabilizing tank. A water inlet valve 1 is installed on the water inlet pipe. A vertical water outlet pipe 3 is located at the bottom of the pressure-stabilizing tank, and a T-shaped tee 14 is connected to the vertical water outlet pipe. The horizontal outlet of the T-shaped tee is connected to the inlet of a secondary water supply booster pump via a secondary water supply pipe 13. A water supply valve 12 is installed on the secondary water supply pipe. The vertical outlet of the T-shaped tee is connected to a drain pipe 16, and a drain valve 15 is installed on the drain pipe. A rotary sandblasting gun is mounted on the top of the pressure-stabilizing tank to spray a sandblasting water mixture into the tank. The rotary sandblasting gun is preferably a horn-shaped cleaning ball 10 that can automatically rotate under water pressure.

[0015] A pre-mixing water blasting device 4 is provided outside the flow stabilizer to provide a sand-water mixture to the rotary blasting gun. The pre-mixing water blasting device delivers the sand-water mixture to the rotary blasting gun through a high-pressure sand-water pipe 7. A blasting valve 9 is provided on the high-pressure sand-water pipe.

[0016] Preferably, a sand-accumulating flushing pipe 17 is provided at the bottom of the flow stabilizing tank, which can spray axial water flow to the bottom of the tank. The sand-accumulating flushing pipe is connected to the output pipeline of the high-pressure water pump through a flushing water pipe, and a flushing valve 18 is provided on the flushing water pipe.

[0017] Preferably, the flushing water pipe and the vertical outlet water pipe are respectively installed at both ends of the flow stabilizing tank, and the outlet of the flushing water pipe points in the direction of the vertical outlet water pipe.

[0018] like Figure 2 As shown, the pre-mixing water sandblasting device includes a high-pressure water pump 41 and a positive pressure sand storage tank 48. The positive pressure sand storage tank is equipped with a pressurized water pipe 43 and a water-sand output pipe 47. The water-sand output pipe is equipped with a sand mixing valve 45, and the pressurized water pipe is equipped with a back pressure valve 44. The sand mixing valve is equipped with a high-pressure water inlet, a sand-grinding inlet connected to the water-sand output pipe, and a high-pressure sand-water output outlet connected to the high-pressure sand-water pipe. The pressurized water pipe on the positive pressure sand storage tank and the high-pressure water inlet of the sand mixing valve are respectively connected to the output pipe 42 of the high-pressure water pump. The water inlet of the high-pressure water pump is connected to the municipal tap water pipe through a cleaning water pipe 5. A cleaning valve 6 is equipped on the cleaning water pipe.

[0019] The positive pressure sand storage tank is a vertical sand storage tank. A sand filling port is opened at the upper end of the vertical sand storage tank. A sealing blind plate 46 is installed at the sand filling port to close the sand filling port. The pressurized water pipe and the water and sand output pipe are fixed on the sealing blind plate.

[0020] The cleaning process of this utility model's self-cleaning pressure-free water supply stabilizing tank involves closing the inlet valve and supply valve, opening the drain valve to drain the accumulated water from the stabilizing tank, opening the cleaning valve, and starting the pre-mixing water sandblasting device. A high-pressure sand-water mixture is sprayed into the stabilizing tank by a rotating sandblasting gun to flush and polish the inner wall of the stabilizing tank. At the same time, the flushing valve is opened, and the accumulated sand and wastewater at the bottom of the stabilizing tank are flushed to the vertical outlet pipe through the accumulated sand flushing pipe. The wastewater and accumulated sand are discharged through the vertical outlet of the T-shaped tee and the drain pipe, completing the deep cleaning of the inside of the stabilizing tank. Finally, the sand mixing valve is adjusted so that the high-pressure sand-water output port only outputs high-pressure water without abrasive particles. The high-pressure water is used to flush the inside of the stabilizing tank, thoroughly removing the abrasive particles adhering to the inner wall of the stabilizing tank, thus completing the self-cleaning of the stabilizing tank.

Claims

1. A pressure-stabilizing tank for negative pressure water supply with self-cleaning function, comprising a pressure-stabilizing tank, a vacuum suppressor and an inlet pipe for receiving municipal tap water at the top of the pressure-stabilizing tank, an inlet valve on the inlet pipe, and a vertical outlet pipe at the bottom of the pressure-stabilizing tank, characterized in that: The top of the stabilizing tank is equipped with a rotary sandblasting gun that can spray a sand-water mixture into the tank. Outside the stabilizing tank, there is a pre-mixing water sandblasting device that supplies the sand-water mixture to the rotary sandblasting gun. The pre-mixing water sandblasting device delivers the sand-water mixture to the rotary sandblasting gun through a high-pressure sand-water pipe. A sandblasting valve is installed on the high-pressure sand-water pipe. A T-shaped tee is connected to the vertical water outlet pipe. The horizontal outlet of the T-shaped tee is connected to the inlet of the secondary water supply booster pump through a secondary water supply pipe. A water supply valve is installed on the secondary water supply pipe. The vertical outlet of the T-shaped tee is connected to the sewage pipe. A sewage discharge valve is installed on the sewage pipe.

2. The pressure-stabilizing tank for negative pressure water supply with self-cleaning function according to claim 1, characterized in that: The water jetting device includes a high-pressure water pump and a positive-pressure sand storage tank. The positive-pressure sand storage tank is equipped with a pressurized water pipe and a water-sand output pipe. The water-sand output pipe is equipped with a sand mixing valve. The sand mixing valve has a high-pressure water inlet, a sand-grinding inlet connected to the water-sand output pipe, and a high-pressure sand-water output outlet connected to the high-pressure sand-water pipe. The pressurized water pipe on the positive-pressure sand storage tank and the high-pressure water inlet of the sand mixing valve are respectively connected to the output pipeline of the high-pressure water pump. The water inlet of the high-pressure water pump is connected to the municipal tap water pipe through a cleaning water pipe. A cleaning valve is equipped on the cleaning water pipe.

3. The pressure-stabilizing tank for negative pressure water supply with self-cleaning function according to claim 2, characterized in that: The rotary sandblasting gun is a horn-shaped cleaning ball that can rotate automatically under water pressure.

4. The pressure-stabilizing tank for negative pressure water supply with self-cleaning function according to claim 2 or 3, characterized in that: in The bottom of the flow stabilizing tank is also equipped with a sand flushing pipe that can spray axial water flow to the bottom of the tank. The sand flushing pipe is connected to the output pipeline of the high-pressure water pump through the flushing water pipe.

5. The pressure-stabilizing tank for negative pressure water supply with self-cleaning function according to claim 4, characterized in that: The flushing water pipe and the vertical outlet water pipe are respectively installed at both ends of the flow stabilizing tank, with the outlet of the flushing water pipe pointing in the direction of the vertical outlet water pipe.

6. The pressure-stabilizing tank for negative pressure water supply with self-cleaning function according to claim 2, characterized in that: The positive pressure sand storage tank is a vertical sand storage tank with a sand filling port at the top. A sealing blind plate is installed at the sand filling port to close the sand filling port. The pressurized water pipe and the water-sand output pipe are fixed to the sealing blind plate.

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