CN217299145U - a water supply system - Google Patents

Abstract

The utility model relates to a water supply system, comprising: a vacuum tank, which comprises a vacuum water inlet, a vacuum water replenishing port and a vacuum water outlet, which are used for sucking water into the vacuum tank from the vacuum water inlet and flowing out from the vacuum water outlet; and The pressure tank includes a pressure water inlet and a pressure water outlet, the pressure water inlet is connected with the vacuum water outlet, so as to transport the water in the vacuum tank into the pressure tank and flow out through the pressure water outlet. The utility model temporarily stores the water in the vacuum tank through the pressure tank, so when the water terminal uses water, the vacuum tank will not be frequently replenished with water, so the water pump and the valve can be prevented from being damaged due to frequent opening. In this technical solution, the water supply pipeline is added to transport the water in the pressure tank to the vacuum tank when the water level in the vacuum tank drops to the preset water level, which further solves the problem of the need for work due to the rapid decline of the water level in the vacuum tank. The problem of personnel constantly guarding and constantly refilling the vacuum tank.

Description

a water supply system

technical field

The utility model generally relates to the field of water conservancy equipment. More specifically, the present invention relates to a water supply system.

Background technique

In the production process of the breeding industry, breeding sewage is usually generated, such as sewage from washing livestock houses and animal manure. Such sewage is usually recycled and reused, for example, to irrigate farmland. It not only saves water resources, but also makes full use of derivatives in the breeding process. In the process of secondary utilization of sewage, the sewage is usually purified by the purification pool to obtain reusable water, and then the reclaimed water is transported to the vacuum tank for temporary storage. The recycled water is transported to the water terminal, such as farmland, etc., through the water distribution pipe.

However, when the water is transported back through the water distribution pipe, once the water is used at the end of the water, the vacuum tank must replenish the water for the water distribution pipe, resulting in frequent opening of the water pump and valve to replenish the water frequently. As a result, the damage rate of pumps and valves is high, which ultimately leads to an increase in costs. In addition, because the vacuum tank frequently replenishes water for the water distribution pipe, the water level in the vacuum tank drops rapidly. At the same time, during the piping process of the water supply system, it is easy to cause many pipe joints and air leakage due to non-standard construction operations, which will also cause the liquid level in the vacuum tank to drop rapidly. Therefore, staff are required to keep watch and constantly replenish water to the vacuum tank.

Utility model content

In order to solve at least the above problems, the utility model proposes a water supply system. By replacing the water distribution pipe with a pressure tank, the water supply buffer can be buffered by the pressure tank, thus avoiding the need for the vacuum tank to replenish the water distribution pipe once the water is used at the terminal, and further avoiding the damage of the pump and valve due to frequent opening.

In one aspect, the present invention provides a water supply system, comprising: a vacuum tank, which includes a vacuum water inlet and a vacuum water outlet, which are used for sucking water into the vacuum tank from the vacuum water inlet and flowing out from the vacuum water outlet; and a pressure tank, which includes a pressure water inlet and a pressure water outlet, the pressure water inlet is connected with the vacuum water outlet, so as to transport the water in the vacuum tank into the pressure tank and flow out through the pressure water outlet.

In one embodiment, the vacuum tank further includes a vacuum water supply port, and the water supply system further includes a water supply pipeline, which is used for connecting the vacuum water supply port and the pressure water outlet, so as to deliver the water in the pressure tank to the inside the vacuum tank.

In one embodiment, a liquid level sensor is provided in the vacuum tank for detecting the height of the liquid in the vacuum tank.

In one embodiment, it further includes: a solenoid valve, which is arranged in the water supply pipeline; and a controller, which is connected with the solenoid valve and the liquid level sensor, so as to control the solenoid valve according to the measurement result of the liquid level sensor valve opening and closing.

In one embodiment, a flow meter is arranged between the vacuum water outlet and the pressure water inlet to measure the amount of water flowing into the pressure tank from the vacuum tank, and the flow meter is connected to the controller.

In one embodiment, it further includes: a cover plate, which is opened on the side wall of the vacuum tank and used to cover the external cable of the liquid level sensor.

In one embodiment, a main water pump is also included, and the vacuum water outlet is connected to the pressure water inlet through the main water pump.

In one embodiment, the vacuum water outlet is also connected to the pressure water inlet through an auxiliary water pump, and the main water pump and the auxiliary water pump are connected in parallel.

In one embodiment, the main water pump is connected to the pressure water inlet via a valve, and/or the vacuum water outlet is connected to the main water pump via a valve.

In one embodiment, a sewage outlet is also opened on the side wall of the vacuum tank.

Different from the prior art, which directly connects the water distribution pipe with the vacuum tank to transport the water back to the water terminal, the utility model temporarily stores the water in the vacuum tank through the pressure tank, and only after the water volume in the pressure tank is reduced to a certain extent, The vacuum tank will fill it with water, so when the water terminal uses water, it will not cause the vacuum tank to be filled with water frequently, so it can avoid damage to the pump and valve due to frequent opening.

On the other hand, the technical solution further solves the problem that the water level in the vacuum tank is relatively low due to the increase of the water supply pipeline to transport the water in the pressure tank to the vacuum tank when the water level in the vacuum tank drops to the preset water level. The problem is that it is fast and requires staff to keep watch and constantly refill the vacuum tank.

Description of drawings

The above and other objects, features and advantages of exemplary embodiments of the present invention will become readily understood by reading the following detailed description with reference to the accompanying drawings. In the accompanying drawings, several embodiments of the present invention are shown by way of example and not limitation, and like or corresponding reference numerals refer to like or corresponding parts, wherein:

1 is a structural diagram illustrating a water supply system according to an embodiment of the present invention;

FIG. 2 is an electrical frame diagram illustrating a water supply system according to an embodiment of the present invention; and

FIG. 3 is a diagram showing a connection relationship between a vacuum tank and a water reservoir according to an embodiment of the present invention.

Detailed ways

Embodiments will now be described with reference to the accompanying drawings. It will be understood that, for simplicity and clarity of illustration, where considered appropriate, reference numerals may be repeated among the figures to indicate corresponding or analogous elements. Furthermore, this application sets forth numerous specific details in order to provide a thorough understanding of the embodiments described herein. However, one of ordinary skill in the art will understand that the embodiments described herein may be practiced without these specific details. In other instances, well-known methods, procedures, and components have not been described in detail so as not to obscure the embodiments described herein. Furthermore, this description should not be taken as limiting the scope of the embodiments described herein.

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

FIG. 1 is a structural diagram illustrating a water supply system according to an embodiment of the present invention. FIG. 2 is an electrical frame diagram illustrating a water supply system according to an embodiment of the present invention. As shown in FIG. 1 , the present invention provides a water supply system, which may include: a vacuum tank 1 and a pressure tank 2 . The vacuum tank 1 includes a vacuum water inlet 14 , a vacuum water supply port 11 and a vacuum water outlet 15 . In one embodiment, the vacuum tank 1 can be a vacuum suction tank, and its vacuum water inlet 14 can be connected to a water supply source (such as a reservoir) through a suction pipe, and water is sucked into the vacuum tank from the vacuum water inlet 14 from the water supply source. Inside, when the vacuum tank is filled with water, close the water suction valve at the vacuum water inlet 14 . Then the water in the vacuum tank can be sucked out by the water pump through the vacuum water outlet 15 . When the water in the vacuum tank is sucked out, a negative pressure (vacuum) will be generated in the vacuum tank. Under the action of atmospheric pressure, the water in the reservoir 5 is sucked into the vacuum tank 1 through the suction pipe, and is continuously pumped to the pressure by the water pump. Tank water supply.

The above-mentioned pressure tank 2 may include a pressure water inlet 21 and a pressure water outlet 22 . The pressure water inlet 21 is connected with the vacuum water outlet 15 , so that the water in the vacuum tank can be transported into the pressure tank and flow out through the pressure water outlet 22 . In practical application, the vacuum water outlet 15 is connected to the pressure water inlet 21 via a main water pump 40 . In order to prevent the main water pump 40 from malfunctioning and unable to supply water to the pressure tank, in one embodiment, the vacuum water outlet 15 is also connected to the pressure water inlet 21 via an auxiliary water pump 41, and the main water pump 40 and the auxiliary water pump 41 are arranged in parallel. Specifically, the vacuum water outlet 15 is connected to the first end of the front water outlet pipe, and the second end of the front water outlet pipe is connected to one of the joints of the tee joints 43 . The other two joints of the three-way joint 43 are respectively connected to the front main pipeline 46 and the front auxiliary pipeline 47 . The front main pipeline 46 is connected to the input end of the main water pump 40 , and the front auxiliary pipeline 47 is connected to the input end of the auxiliary water pump 41 . The output end of the main water pump 40 and the output end of the auxiliary water pump 41 are respectively connected to the rear main pipeline and the rear auxiliary pipeline. The rear main pipeline and the rear auxiliary pipeline are collected to the rear outlet pipe through the tee joint 43 . The rear water outlet pipe is connected to the above-mentioned pressure water inlet 21 through the water injection flowmeter 45 , the gate valve 44 and the check valve 42 in sequence. Therefore, when the main water pump 40 fails, the valve (main valve) between the main water pump 40 and the vacuum tank 1 can be closed immediately, and the valve (auxiliary valve) between the auxiliary water pump 41 and the vacuum tank 1 can be opened, so that the timely Switch the delivery pipeline, and complete the water supply through the auxiliary water pump 41 . In one embodiment, the front main pipeline 46 and the front auxiliary water pipeline are provided with check valves 42 to ensure that the water flows in a single direction (the direction from the vacuum tank to the pressure tank) to prevent the fluid from flowing backwards in the event of an accident, causing The water pump is reversed, thereby ensuring the safety of the pipeline equipment, the main water pump 40 , the auxiliary water pump 41 and the vacuum tank 1 .

In one application scenario, the above-mentioned pressure tank 2 is installed between the vacuum tank 1 and the water terminal. The pressure tank 2 is connected to the water terminal through the water supply pipe network. The principle of water from the pressure tank 2 to the water terminal is as follows: after the main water pump 40 is started, the water is transported from the vacuum tank 1 to the pressure tank 2, so that the water level in the pressure tank rises, the compressed air 23 in the pressure tank is compressed, and the compressed air and the pressure tank are compressed. The pressure between the tops of the pressure tanks then increases. When the pressure in the pressure tank reaches the preset upper limit pressure value, the electric contact pressure gauge 24 connected to the top of the pressure tank by the pipeline connects the upper limit contact, and sends a stop water injection signal. After the controller receives the stop water injection signal, it will pass When the main water pump relay 400 cuts off the power supply of the main water pump 40, or cuts off the power supply of the auxiliary water pump 41 through the auxiliary water pump relay 410, the main water pump 40 or the auxiliary water pump 41 stops working, that is, water injection into the pressure tank 2 is stopped. When water is used at the water terminal, the compressed air 23 in the pressure tank presses the water into the water supply pipe network, the water level in the pressure tank drops, and the pressure of the compressed air 23 in the pressure tank also drops. When the pressure between the compressed air and the top of the pressure tank drops to the preset lower limit pressure value, the electric contact pressure gauge 24 is connected to the lower limit contact and sends out the start water injection signal. After the controller receives the start water injection signal, it will pass the main water pump. The relay 400 connects the motor of the main water pump 40 to the power supply, or connects the motor of the auxiliary water pump 41 to the power supply through the main water pump relay 410 , then the main water pump 40 or the auxiliary water pump 41 restarts and continues to inject water into the pressure tank 2 . The whole process can be executed under the condition of unmanned control, and according to the change of water consumption, the main pump 40 (or auxiliary pump 41) can be adjusted on and off times and working time to ensure continuous water supply to the water supply network. To sum up, the above-mentioned pressure tank 2 plays a role in balancing the water volume and pressure in the water supply system, preventing the main water pump 40 (or the auxiliary water pump 41 ), the check valve 42 and the gate valve 44 from frequently opening and replenishing water.

In practical application, when the water level in the vacuum tank 1 drops to the preset water level, the valve set at the vacuum water inlet 14 needs to be opened, so as to suck the water in the reservoir into the vacuum tank. Therefore, manual duty is required to prevent water shortage in the vacuum tank 1 . In order to reduce the manual workload, in one embodiment, the water supply system may further include a water supply pipeline 3, which is connected between the vacuum water supply port 11 and the pressure water outlet 22, or leads out a branch pipe laid at the pressure water outlet 22. The water supply pipeline 3 transports the water in the pressure tank to the vacuum tank. In order to realize this function, in one embodiment, the vacuum tank is provided with a liquid level sensor 16, which is used to detect the height of the liquid in the vacuum tank. In an implementation scenario, in order to prevent the external cable of the liquid level sensor 16 from being damaged or exposed to rain, a cover plate 12 may also be provided on the side wall of the vacuum tank to cover the external cable of the liquid level sensor 16 . In addition, a solenoid valve 31 is also arranged in the water supplement pipeline 3 to control the conduction and closing of the water supplement pipeline 3 . At the same time, the water supply system also includes a controller 6 (eg, a programmable controller). As shown in FIG. 2 , the controller 6 may be the above-mentioned controller connected to the electric contact pressure gauge 24 , or may be a controller specially used for controlling the solenoid valve 31 . It can be arranged on the outside of the vacuum tank and connected with the solenoid valve 31 and the liquid level sensor 16 (the connection method can be wireless connection or wired connection), so as to control the opening and closing of the solenoid valve 31 according to the measurement result of the liquid level sensor 16, and then Control the turn-on and turn-off of the water supply pipeline 3.

In addition, the above-mentioned water injection flowmeter 45 is also connected to the controller 6, which is used to detect the amount of water transported from the vacuum tank to the pressure tank, and send the detection result to the controller 6. When the controller 6 determines that the transported water amount is about to reach the pressure When the maximum capacity of the tank is reached, the power supply of the main water pump 40 is cut off through the relay, and the main water pump 40 stops working, that is, water injection into the pressure tank 2 is stopped. Therefore, the water injection flow meter 45 can not only be used to count the water consumption of the water terminal, but also can be used to prevent the pressure tank 2 from being injected with too much water.

After the hardware facilities are arranged as above, the principle of supplying water to the vacuum tank 1 by the pressure tank 2 will be described below. When the liquid level sensor 16 detects that the liquid level in the vacuum tank drops to a preset water level (for example, half of the height of the vacuum tank 1), it will send a water replenishment signal to the controller 6, and the controller 6 will turn on the solenoid after receiving the replenishment signal. valve 31, at this time, the water supply pipeline 3 is in a dredging state, and the vacuum tank 1 will absorb water from the pressure tank through the water supply pipeline 3. In order to control the amount of water absorbed by the vacuum tank 1 from the pressure tank 2, in an application scenario, a water replenishment flowmeter, such as an electromagnetic replenishment water flowmeter, can be set in the water replenishment pipeline 3, which can be used for flow measurement of conductive liquids, so it can be used for Measure the amount of water flowing through make-up pipe 3. The make-up water flowmeter also needs to be connected to the controller 6 and send the measurement results to the controller in real time. When the controller determines that the amount of water flowing through the replenishment pipeline 3 measured by the replenishment water flow meter reaches the preset value, it will control the solenoid valve 31 to close, and stop replenishing water to the vacuum tank 1 . Therefore, the vacuum tank 1 can be automatically replenished with water. There is no need for staff to guard at all times, saving manpower.

The structure and electrical framework of the water supply system of the present invention have been exemplarily introduced above with reference to FIGS. 1 and 2 . Those skilled in the art should understand that the structure of the water supply system shown in FIG. 1 is exemplary rather than limiting. It can be adjusted according to needs by those skilled in the art. FIG. 3 is a diagram showing a connection relationship between a vacuum tank and a water reservoir according to an embodiment of the present invention. The connection relationship between the vacuum tank and the water reservoir in the embodiment of the present invention will be exemplarily described below with reference to FIG. 3 .

As shown in FIG. 3, the vacuum tank 1 is connected to the reservoir 5 through a water suction pipe. In order to facilitate the vacuum tank 1 to absorb water from the reservoir 5, the reservoir 5 is usually set at a position higher than the vacuum tank 1, such as a reservoir 5 is arranged above the dam body, and the vacuum tank 1 is arranged under the dam body, so that the water can flow into the vacuum tank 1 more easily by means of the gravity of the water. Taking the sewage reuse system in the breeding industry as an example, the sewage is usually filtered and purified by the purification pool on the dam to obtain the reuse water, and then the reuse water is transported to the water terminal through the water supply system, such as flushing and spraying the livestock house. . Or, without purification, the manure water can be directly transported to the farmland (water terminal) through the water supply system to be used as fertilizer, which can save resources and prevent sewage from being discharged, thus achieving the purpose of environmental protection. At the same time, through the water supply system, the water supply pressure in the farm area is operated stably, the reuse of sewage is realized, and the water supply pressure in the farm area is reduced at the same time. In one embodiment, since there are many impurities in the reused water or fecal water, a sewage outlet is also provided at the bottom of the vacuum tank or under the side wall, and the sewage outlet is connected with a sewage valve 13 for discharging the dirt in the vacuum tank, or when necessary Drain the water in the vacuum tank.

The connection relationship between the water supply system and the reservoir 5 according to the embodiment of the present invention has been exemplarily described above with reference to FIG. 3 . Those skilled in the art should understand that the connection relationship between the water supply system and the reservoir 5 shown in FIG. 3 is The relationship with the position is exemplary and not restrictive, and can be adjusted by those skilled in the art as required. For example, the vacuum tank 1 may be connected to a plurality of reservoirs 5, or the reservoirs 5 may be at the same height as the vacuum tank 1, or the like. The working process and working principle of the water supply system according to the embodiment of the present invention will be exemplarily introduced below.

First, before the main water pump 40 or the auxiliary water pump 41 is started, the suction valve is opened and the drain valve 13 is closed to inject clean water into the vacuum tank. As the water level in the vacuum tank rises, the air in the vacuum tank and the pump body of the main water pump 40 is gradually discharged. In order to close the water suction valve in time when the vacuum tank 1 is filled with water, an overflow nozzle can be opened on the top of the vacuum tank 1, and the position of the overflow nozzle is slightly lower than the vacuum water inlet 14. When the overflow nozzle has water flowing out close the suction valve. Next, the main water pump 40 (or the auxiliary water pump 41) is turned on, and the water in the vacuum tank is transported into the pressure tank 2, and then transported to the water terminal through the pipe network. When the water level in the vacuum tank drops to a preset height, the vacuum tank also reaches a negative pressure of a certain strength. At this time, the controller opens the solenoid valve 31 in the water supply pipeline 3 to make the water supply pipeline 3 in a conducting state. The negative pressure in the vacuum tank continuously sucks the water in the pressure tank 2 or the pipe network into the vacuum tank 1. When the controller determines that the amount of water flowing through the replenishment pipe 3 measured by the replenishment flow meter reaches the preset value, it will control the electromagnetic The valve 31 is closed, and water supply to the vacuum tank 1 is stopped.

When the water in the pressure tank 2 is not enough to replenish the vacuum tank 1, that is, when the replenishment water flow (flow through the replenishment pipeline 3) measured by the replenishment water flowmeter after the solenoid valve 31 is opened is less than the preset value, then It is necessary to open the water suction valve to absorb water from the reservoir 5, so that the vacuum tank is always in a state of water. Since the vacuum tank is always in a state of water, the normal operation of the main water pump 40 is ensured. It also ensures that water is available at the water terminal at any time, without the need for staff to be on duty at all times, saving human resources. At the same time, the water in the vacuum tank 1 is temporarily stored through the pressure tank 2, and the vacuum tank 1 will replenish the water only after the water volume in the pressure tank 2 is reduced to a certain extent. Tank 1 is replenished frequently, so the damage to the pump and valve due to frequent opening can be avoided.

In the above description of the present specification, unless otherwise expressly specified and limited, terms such as the term "connection" should be construed in a broad sense. For example, with regard to the term "connection", it may be a mechanical connection or an electrical connection; it may be a direct connection or an indirect connection through an intermediate medium, or it may be a communication between two elements or a mutual connection between two elements role relationship. Therefore, unless otherwise clearly defined in this specification, those skilled in the art can understand the specific meanings of the above terms in the present invention according to specific situations.

In addition, terms such as "first" or "second" used in this specification to refer to numbers or ordinal numbers are only for descriptive purposes, and should not be construed as expressing or implying relative importance or implicitly indicating the indicated the number of technical characteristics. Thus, a feature defined as "first" or "second" may expressly or implicitly include that feature. In the description of the present specification, "plurality" means at least two, such as two, three or more, etc., unless expressly and specifically defined otherwise. While this specification has shown various embodiments of the invention, it will be apparent to those skilled in the art that such embodiments have been provided by way of example only. Numerous modifications, changes and substitutions will occur to those skilled in the art without departing from the spirit and spirit of the present invention. It should be understood that various alternatives to the embodiments of the invention described herein may be employed in practicing the invention. The appended claims are intended to define the scope of protection of the invention, and therefore to cover modular compositions, equivalents, or alternatives within the scope of these claims.

Claims (10)

1. A water supply system, characterized in that, comprising: a vacuum tank comprising a vacuum water inlet and a vacuum water outlet for drawing water into the vacuum tank from the vacuum water inlet and flowing out from the vacuum water outlet; and The pressure tank includes a pressure water inlet and a pressure water outlet, the pressure water inlet is connected with the vacuum water outlet, so as to transport the water in the vacuum tank into the pressure tank and flow out through the pressure water outlet. 2 . The water supply system according to claim 1 , wherein the vacuum tank further comprises a vacuum water supply port, and the water supply system further comprises a water supply pipeline, which is used for connecting the vacuum water supply port and the pressure water outlet. 3 . , to transfer the water in the pressure tank to the vacuum tank. 3 . The water supply system according to claim 2 , wherein a liquid level sensor is provided in the vacuum tank for detecting the height of the liquid in the vacuum tank. 4 . 4. The water supply system according to claim 3, further comprising: a solenoid valve disposed within the make-up water pipeline; and The controller is connected with the solenoid valve and the liquid level sensor to control the opening and closing of the solenoid valve according to the measurement result of the liquid level sensor. 5 . The water supply system according to claim 4 , wherein a flow meter is arranged between the vacuum water outlet and the pressure water inlet to measure the amount of water flowing into the pressure tank from the vacuum tank, and the flow meter is connected to the pressure tank. 6 . the controller is connected. 6. The water supply system of claim 3, further comprising: A cover plate, which is opened on the side wall of the vacuum tank, is used to cover the external cable of the liquid level sensor. 7 . The water supply system according to claim 1 , further comprising a main water pump, and the vacuum water outlet is connected to the pressure water inlet through the main water pump. 8 . 8 . The water supply system according to claim 7 , wherein the vacuum water outlet is further connected to the pressure water inlet through an auxiliary water pump, and the main water pump and the auxiliary water pump are connected in parallel. 9 . 9 . The water supply system according to claim 7 , wherein the main water pump is connected to the pressure water inlet through a valve, and/or the vacuum water outlet is connected to the main water pump through a valve. 10 . 10 . The water supply system according to claim 1 , wherein a sewage outlet is further opened on the side wall of the vacuum tank. 11 .

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