CN114482200A - A kind of water cut off water storage antifreeze device and using method - Google Patents

Abstract

The invention discloses a water-break water storage anti-freezing device and a using method thereof, relates to the technical field of pipeline anti-freezing, solves the problems of poor anti-freezing performance and high using cost of the existing pipeline heat-insulating structure, improves the anti-freezing capacity of a pipeline, and reduces the using cost, and the specific scheme is as follows: the water ejector is positioned below a freezing line, one end of the water ejector is connected with a water supply main pipe through a valve, the other end of the water ejector is connected with a vertically arranged water supply branch pipe, the bottom of the water ejector is connected with a retractable and expandable water storage bag, and the water ejector forms negative pressure through accelerated water flow to extract water in the water storage bag.

Description

A kind of water cut off water storage antifreeze device and using method

technical field

The invention relates to the technical field of pipeline antifreeze, in particular to a water cut-off water storage antifreeze device and a use method.

Background technique

The statements herein merely provide background related to the present invention and do not necessarily constitute prior art.

Due to the high latitude in northern my country and the cold winter climate, and the relatively simple antifreeze measures for water supply pipelines in rural areas, the problem of pipeline freezing and blockage often occurs in the water supply system of northern villages and towns in winter.

At present, there are few antifreeze equipment for water supply pipelines in rural areas. For village water supply pipelines, the main water supply pipes are generally buried below the freezing line, which is difficult to freeze.

The inventor found that most of the above-ground parts of the water supply branch pipes after entering the household in rural areas are wrapped with insulation materials such as cotton cloth, but this method cannot effectively avoid the freezing of water bodies in the above-ground pipes, which seriously affects the supply of domestic water; Some users will wrap heating mechanisms such as electric heating cables on the above-ground pipes as heat preservation and antifreeze measures. To prevent the pipes from freezing in winter, it is necessary to keep the electric heating cables in a heating state for a long time, which not only wastes a lot of power resources, but also costs a lot. , long-term heating can easily lead to overload damage to the heating mechanism, which can easily lead to leakage or even electric shock.

SUMMARY OF THE INVENTION

In view of the deficiencies in the prior art, the purpose of the present invention is to provide a water cut-off water storage antifreeze device and a method of use, which can recover and store the water in the ground pipeline below the freezing line, and use the principle of negative pressure to make the stored water get Reuse solves the problems of poor antifreeze performance and high use cost of the existing pipeline thermal insulation structure.

In order to achieve the above object, the present invention is realized by the following technical solutions:

In a first aspect, an embodiment of the present invention provides a water-cutting, water-storing and anti-freezing device, including a water ejector located below the freezing line, one end of the water ejector is connected to a water supply main pipe through a valve, and the other end of the water ejector is connected to the water supply main pipe. Connected to a vertical water supply branch pipe, a retractable and expandable water storage bag is connected to the bottom of the water ejector, and the water ejector forms a negative pressure by increasing the water flow to extract the water body in the water storage bag.

As a further implementation, the water ejector is provided with a negative pressure chamber, and a booster pipe is fixed in the negative pressure chamber, and one end of the booster pipe extends out of the negative pressure chamber and is connected to the valve. The other end of the negative pressure cavity is connected with a throat pipe, the bottom of the negative pressure cavity is connected with a water storage bag, and the end of the negative pressure cavity away from the valve is connected with a diffuser pipe, which is communicated with the water supply branch pipe.

As a further implementation, the pipe diameter of the booster pipe is smaller than the negative pressure chamber, the pipe diameter of the booster pipe is gradually reduced, and the pipe diameter of the end of the booster pipe extending out of the negative pressure chamber is the largest, which is used to supply water from the water supply. The water entering the negative pressure chamber from the main pipe is accelerated and pressurized.

As a further implementation, the throat pipe is located in the negative pressure chamber, the throat pipe is a slender pipe structure, one end of the throat pipe is fixedly connected with the booster pipe, and the other end of the throat pipe is communicated with the negative pressure chamber and is close to the negative pressure chamber. Diffuser.

As a further implementation, the pipe diameter of the negative pressure chamber is gradually reduced, and the pipe diameter of the end of the negative pressure chamber close to the valve is the largest; the pipe diameter of the diffuser pipe is gradually increased, and the pipe diameter of the diffuser pipe The smallest end communicates with the smallest end of the pipe diameter of the negative pressure chamber.

As a further implementation manner, the valve is connected with a control rod, one end of the control rod is connected with the valve, and the other end sticks out of the ground for controlling the valve.

As a further implementation manner, the water storage bag is made of an easily deformable and impermeable material, and the outside of the water storage bag is wrapped with a water bladder protection shell, and the water bladder protection shell is made of a hard material. Several small holes are opened on the bag protective shell.

As a further implementation manner, there is an expansion space between the water bladder protection shell and the water storage bag.

In the second aspect, the present invention provides a method of using the above-mentioned water-cutting and water-storage antifreeze device, including: when supplying water, opening a valve and simultaneously opening a faucet, the water flow enters the booster pipe, and the flow velocity of the water flow in the booster pipe gradually increases, When the water flow reaches the throat, the flow velocity reaches the maximum, and the high-speed water flow is used to take away the air in the negative pressure chamber to reduce the pressure in the negative pressure chamber;

The negative pressure cavity is communicated with the throat, the pressure in the negative pressure cavity is lower than the external atmospheric pressure to form a negative pressure state, and the water stored in the water storage bag enters the negative pressure cavity under the action of the pressure difference and enters the water supply branch pipe with the high-speed water flow.

As a further implementation method, it also includes: after the water is cut off, the valve is closed and the faucet is opened at the same time, so that the water supply branch pipe is connected to the outside atmosphere, the water in the water supply branch pipe flows backward under the action of gravity, and the water storage bag is in a contracted state at this time, and the water storage bag The air pressure inside is lower than the outside atmospheric pressure, the water flow enters the negative pressure chamber through the diffuser tube, and the water flow enters the water storage bag through the negative pressure chamber under the action of the outside air pressure for storage.

The above-mentioned beneficial effects of the present invention are as follows:

(1) The present invention can make the water in the water supply branch pipe return to the water storage bag below the freezing line under the action of its own weight for storage, can avoid the existence of water in the water supply branch pipe, prevent the pipeline from freezing, does not need to use heating equipment, and reduces the use of Cost and risk, and the water storage bag is communicated with the water ejector. When water is supplied, negative pressure can be formed under the action of the water ejector to discharge the water in the water storage bag, so that the water body can be reused and waste is avoided.

(2) The water bag protective shell of the present invention is wrapped on the outside, and there is a certain expansion space between the water bag protective shell and the water storage bag. While protecting the water storage bag, it can prevent the water bag protective shell from hindering the water storage. Expansion of the bag.

(3) There are several small holes on the protective shell of the bag of the present invention. On the one hand, when the valve is opened and the water supply branch pipe connected to the water ejector is accidentally blocked, it can provide support for the water storage bag to prevent the water storage bag from being subjected to excessive water. On the other hand, the small holes on the protective shell of the water bag allow air to enter and leave the water ejector to form a pressure difference on both sides of the water storage bag, which ensures the expansion or contraction of the water storage bag and protects the water storage bag from being damaged. squeezed by the covering soil.

(4) In the present invention, a pressurized pipe with a gradually decreasing diameter is arranged in the negative pressure chamber, and the flow rate of the water flow is increased through the pressurized pipe, so as to quickly bring out the air in the negative pressure chamber, so as to reduce the pressure in the negative pressure chamber , so that the water in the water storage bag can be pumped back into the water ejector under the action of negative pressure, without the use of other vacuuming equipment, simplifying the structure and operation, and greatly reducing the cost and difficulty of use.

Description of drawings

The accompanying drawings forming a part of the present invention are used to provide further understanding of the present invention, and the exemplary embodiments of the present invention and their descriptions are used to explain the present invention, and do not constitute an improper limitation of the present invention.

FIG. 1 is a schematic diagram of the overall structure of a water cut-off water storage and antifreeze device according to one or more embodiments of the present invention;

2 is a schematic diagram of the flow direction of a water body after water cut off according to one or more embodiments of the present invention;

3 is a schematic diagram of the flow direction of a water body after water supply according to one or more embodiments of the present invention;

In the figure: the distance or size between each other is exaggerated in order to show the position of each part, the schematic diagram is for illustration only;

Among them, 1. Valve; 2. Control rod; 3. Water inlet; 4. Booster pipe; 5. Throat pipe; 6. Negative pressure chamber; 7. Water storage port; 8. Water storage bag; 9. Diffuser pipe; 10. Water outlet; 11. Water bladder protective shell.

Detailed ways

It should be noted that the following detailed description is exemplary and intended to provide further explanation of the invention. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

As described in the background art, most of the pipelines on the ground after entering the household in rural areas are wrapped with thermal insulation materials such as cotton cloth, but this method cannot effectively avoid the freezing of water bodies in the pipelines on the ground, which seriously affects the domestic water. Some users will wrap heating mechanisms such as electric heating cables on the ground pipes as heat preservation and antifreeze measures. If you want to prevent the pipes from freezing in winter, you need to keep the electric heating cables in a heating state for a long time, which not only wastes a lot of power resources, The use cost is high, and long-term heating can easily lead to overload damage of the heating mechanism, easy to cause leakage or even electric shock.

Example 1

In a typical embodiment of the present invention, as shown in FIG. 1 , a water cut-off water storage and antifreeze device is proposed, which includes a valve 1 , a control rod 2 , a water ejector and a water storage bag 8 .

Among them, one end of valve 1 is connected to the water supply main pipe, the other end of valve 1 is connected to the water ejector through a pipeline, and the water supply main pipe is buried below the freezing line. The main function of valve 1 is to control the on-off of the water supply main pipe.

Since the valve 1 is buried below the freezing line, in order to facilitate the control of the valve 1, a control rod 2 is set. Rod 2 operates valve 1 directly.

In this embodiment, the control rod 2 protrudes from the ground to a height of about 0.5 to 1.5 m. It can be understood that in other embodiments, the length of the control rod 2 protruding from the ground is set according to the actual needs of the user. limits.

The water ejector is provided with a water inlet 3, a water storage port 7 and a water outlet 10, wherein the water inlet 3 and the water outlet 10 are respectively located on both sides of the water ejector, and the water storage port 7 is located at the bottom of the water ejector.

The water inlet 3 of the water ejector is connected to the valve 1 through a pipeline, and the connection between the water ejector and the water supply main pipe can be realized through the opening and closing of the valve 1; the water outlet 10 of the water ejector is connected with the water supply branch pipe. Specifically, The water supply branch pipe is a vertical water supply pipe, one end is buried below the freezing line and connected to the water outlet 10 of the water ejector, and the other end extends out of the ground and is installed with a faucet.

A water storage bag 8 is arranged below the water storage port 7 of the water ejector. The water storage port 7 and the water storage bag 8 are connected by pipes. The main function of the water storage bag 8 is to recover and store the water in the water supply branch pipe. Avoid freezing of the water supply branch.

Specifically, when the valve 1 is closed, there is no more water pressure in the water supply branch pipe, and the water in the water supply branch pipe flows back under the action of gravity, and enters the water storage bag 8 through the water storage port 7 to realize recovery and storage. Located below the freezing line, it can effectively avoid the freezing of water bodies.

Among them, the water storage bag 8 is made of easily deformable and impermeable materials, which can be expanded or contracted. There is an expansion space of a predetermined size between the 11 and the water storage bag 8 to prevent the water bag protective shell 11 from hindering the expansion of the water storage bag 8 .

It can be understood that, the set size of the expansion space between the water bag protective shell 11 and the water storage bag 8 is determined according to the expansion limit of the water storage bag 8, and there is no excessive restriction here.

The water bag protective shell 11 is made of hard material, and there are several small holes on the water bag protective shell 11. On the one hand, when the valve 1 is opened and the water supply branch pipe connected to the rear of the water ejector is accidentally blocked, the water storage bag can be provided. 8 provides support to prevent the water storage bag 8 from being broken due to excessive water pressure; on the other hand, the small holes on the water bag protective shell 11 allow air to enter and exit the water ejector to form a pressure difference on both sides of the water storage bag 8, while protecting The water storage bag 8 is not compressed by the covering soil.

It can be understood that one water storage bag 8 can be provided, or multiple water storage bags 8 can be provided. When multiple water storage bags 8 are provided, they can be connected to one water storage port 7 through pipes, or they can be spaced at the bottom of the water ejector. A plurality of water storage ports 7 are provided, and each water storage port 7 is correspondingly connected to a water storage bag 8. The specific setting method can be selected according to actual needs, and there is no excessive restriction here.

The water ejector is composed of a booster pipe 4, a throat pipe 5, a negative pressure chamber 6 and a diffuser pipe 9. The booster pipe 4, the throat pipe 5, the negative pressure chamber 6 and the diffuser pipe 9 are all made of cast iron materials. The booster pipe 4 is fixedly connected with the negative pressure chamber 6 and the connection is sealed, one end of the booster pipe 4 extends out of the negative pressure chamber 6, and the other end of the booster pipe 4 is located inside the negative pressure chamber 6 and communicated with a throat pipe 5.

Specifically, the diameter of the booster pipe 4 is smaller than that of the negative pressure chamber 6, the inner diameter of the booster pipe 4 is gradually reduced, and one end of the booster pipe 4 is used as the water inlet 3 of the water ejector to extend out of the negative pressure chamber 6 and communicate with the valve. 1 connection, the inner diameter of the pipe at one end of the booster pipe 4 as the water inlet 3 is the largest, and the inner diameter of the pipe at the end of the booster pipe 4 inside the negative pressure chamber 6 is the smallest, which is used to increase the flow rate and pressure of the water flow.

The throat pipe 5 is a slender pipe structure, and the pipe diameter of the throat pipe 5 is the same as that of the end of the booster pipe 4 located inside the negative pressure chamber 6, and one end of the throat pipe 5 and the booster pipe 4 are located in the negative pressure chamber 6. One end of the interior is fixedly connected, and the other end of the throat pipe 5 is communicated with the negative pressure chamber 6 and is close to the diffuser pipe 9. The main function of the throat pipe 5 is to discharge the pressurized water body into the diffuser pipe according to the pressurized pressure. 9. Avoid the reduction of water pressure and flow rate.

The water storage port 7 is located at the bottom of the negative pressure chamber 6. The diameter of the negative pressure chamber 6 is gradually reduced. The pipe diameter of the end fixedly connected to the booster pipe 4 is the largest, and the end of the negative pressure chamber 6 with the smallest pipe diameter is connected to the diffuser pipe 9. The smallest end of the pipe diameter is connected, thereby increasing the flow rate of the water flow, so that a low pressure is formed near the high-speed water flow, and an adsorption capacity is generated to take away the air in the negative pressure chamber.

The end of the diffuser tube 9 away from the negative pressure chamber 6 is used as the water outlet 10, the diameter of the diffuser tube 9 is gradually increased, and the diameter of the end of the diffuser tube 9 as the water outlet 10 is the largest, so as to reduce the water flow into the water supply branch pipe The flow rate and the pressure of the water flow are increased to meet the needs of users.

Example 2

In another typical embodiment of the present application, as shown in FIG. 2 to FIG. 3 , a method for using a water cut-off water storage and antifreeze device as described in Embodiment 1 is provided, and the specific process is as follows:

When supplying water, open the valve 1 and open the faucet at the same time (as shown in Figure 3), the water flow enters the water inlet 3 of the water ejector, the inner diameter of the booster pipe 4 gradually decreases, and the water flow velocity in the booster pipe 4 gradually increases, When the water flow reaches the throat pipe 5, the flow velocity reaches the maximum, and the high-speed water flow is used to take away the air in the negative pressure chamber 6 to reduce the pressure in the negative pressure chamber 6;

The negative pressure cavity 6 is communicated with the throat pipe 5, the pressure in the negative pressure cavity 6 is lower than the external atmospheric pressure to form a negative pressure state, and the water stored in the water storage bag 8 flows through the water ejector outlet with the high-speed water under the action of the pressure difference. 10 enters the water supply branch pipe, so that the water stored in the water storage bag 8 is utilized, and the waste of water resources is not caused;

When the water is cut off, close the valve 1 and open the faucet at the same time (as shown in Figure 2), so that the water supply branch pipe is connected to the outside atmosphere, and the water in the water supply branch pipe connected to the water ejector outlet 10 flows backwards under the action of gravity, and the water is stored at this time. The bag 8 is in a contracted state, the air pressure in the water storage bag 8 is lower than the external atmospheric pressure, the water flows through the water outlet 10 and the diffuser 9 of the water ejector and enters the negative pressure chamber 6, and the water flows through the negative pressure chamber 6 under the action of the external air pressure. The water storage port 7 at the bottom enters the water storage bag 8 for storage. Since the water cut-off water storage and antifreeze device is entirely buried below the freezing line, the water stored in the water storage bag 8 will not freeze, and the water in the ground part of the water supply branch pipe will not be frozen. is recovered, thus avoiding the risk of freezing of the water supply branch.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims (10)

1. The water-cut-off, water-storage and anti-freezing device is characterized by comprising a water ejector positioned below a freezing line, wherein one end of the water ejector is connected with a water supply main pipe through a valve, the other end of the water ejector is connected with a vertically arranged water supply branch pipe, the bottom of the water ejector is connected with a retractable and expandable water storage bag, and the water ejector forms negative pressure through accelerated water flow so as to extract water in the water storage bag.

2. The water-break water-storage anti-freezing device as claimed in claim 1, wherein the water injector is provided with a negative pressure cavity, a pressure-increasing pipe is fixedly arranged in the negative pressure cavity, one end of the pressure-increasing pipe extends out of the negative pressure cavity and is connected with the valve, the other end of the pressure-increasing pipe is communicated with a throat pipe, the bottom of the negative pressure cavity is connected with the water storage bag, one end of the negative pressure cavity, far away from the valve, is communicated with a pressure-increasing pipe, and the pressure-increasing pipe is communicated with the water supply branch pipe.

3. The water-break water-storage anti-freezing device as claimed in claim 2, wherein the pipe diameter of the pressure-increasing pipe is smaller than that of the negative pressure cavity, the pipe diameter of the pressure-increasing pipe is gradually reduced, and the pipe diameter of the end of the pressure-increasing pipe, which extends out of the negative pressure cavity, is the largest, so that the water entering the negative pressure cavity from the water main pipe is accelerated and pressurized.

4. The water-break water-storage anti-freezing device as claimed in claim 2, wherein the throat is located in the negative pressure cavity, the throat is in a slender pipeline structure, one end of the throat is fixedly connected with the pressure increasing pipe, and the other end of the throat is communicated with the negative pressure cavity and close to the diffuser pipe.

5. The water-break water-storage anti-freezing device as claimed in claim 2, wherein the pipe diameter of the negative pressure cavity is gradually reduced, and the pipe diameter of one end of the negative pressure cavity close to the valve is maximum; the pipe diameter of the diffuser pipe gradually increases, and the pipe diameter minimum end of the diffuser pipe is communicated with the pipe diameter minimum end of the negative pressure cavity.

6. The water-break water-storage anti-freezing device as claimed in claim 1, wherein the valve is connected with a control rod, one end of the control rod is connected with the valve, and the other end of the control rod extends out of the ground for controlling the valve.

7. The water-break water-storage anti-freezing device as claimed in claim 1, wherein the water-storage bag is made of a material which is easy to deform and waterproof, a water-bag protective shell is wrapped outside the water-storage bag, the water-bag protective shell is made of a hard material, and a plurality of small holes are formed in the water-bag protective shell.

8. A water break, storage and freeze protection device as claimed in claim 7, wherein an expansion space is provided between the water bag and the water bag.

9. The use method of the water-break water-storage anti-freezing device as claimed in any one of claims 1 to 8, comprising:

when water is supplied, the valve is opened, the water tap is opened at the same time, water flows enter the pressure increasing pipe, the flow velocity of the water flows in the pressure increasing pipe is gradually increased, the flow velocity reaches the maximum when the water flows reach the throat pipe, and the air in the negative pressure cavity is taken away by the high-speed water flows to reduce the pressure in the negative pressure cavity;

the negative pressure cavity is communicated with the throat pipe, the pressure in the negative pressure cavity is smaller than the external atmospheric pressure to form a negative pressure state, and water stored in the water storage bag enters the negative pressure cavity under the action of pressure difference and enters the water supply branch pipe along with high-speed water flow.

10. The method of use of claim 9, further comprising:

after the water is cut off, the valve is closed and the water tap is opened simultaneously, so that the water supply branch pipe is communicated with the external atmosphere, water in the water supply branch pipe flows backwards under the action of gravity, the water storage bag is in a contraction state at the moment, the air pressure in the water storage bag is smaller than the external atmospheric pressure, water flow enters the negative pressure cavity through the diffuser pipe, and the water flow enters the water storage bag through the negative pressure cavity under the action of the external air pressure to be stored.

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