Constant-pressure water replenishing device

Abstract

The utility model provides a constant-pressure water replenishing device which comprises n water storage tanks (n is an integer greater than or equal to 2). The water inlet pipe is connected with the water storage tank and is used for supplying water to the water storage tank to realize water inlet operation; the water replenishing pipe is connected with the water storage tank and is used for replenishing water in the water storage tank to a water system pipe network to realize water replenishing operation; when a water storage tanks are subjected to water replenishing operation, the other b water storage tanks are subjected to water feeding operation; the water storage tank comprises a tank body and a bag body, and the bag body is arranged in the tank body to divide a water storage cavity and an air cavity; the water storage cavity is connected with the water inlet pipe and the water supplementing pipe; the constant-pressure water replenishing device further comprises a vacuum pump and an air compressor. The vacuum pump is connected with the air cavity. The air compressor is connected with the air cavity; a water pump is abandoned, the air compressor is creatively used for being combined with the vacuum pump to work, the water storage tank is controlled to work alternately, and it is ensured that continuous constant-pressure water supplementing is conducted on a water system pipe network.

Description

Technical Field

[0001] The utility model belongs to the technical field of constant pressure water replenishment systems, and specifically relates to a constant pressure water replenishment device. Background Art

[0002] Constant pressure water replenishment systems, such as air conditioning circulating water systems or building domestic water systems, require stable pressure. Too high or too low pressure will have adverse effects on the system. At present, the constant pressure water replenishment system uses the expansion of gas to work. When installing a constant pressure water replenishment device, the upper limit P2 (pump stop pressure), lower limit P1 (pump start pressure) and pressure value of the pressure switch can be set. After the above work is completed, the power can be turned on to start water supply. Start the water pump to inject water into the air conditioning circulating water system or the building domestic water system.

[0003] Since water is an incompressible liquid, the volume of the water chamber continues to expand as the volume of water increases, and the airbag diaphragm continues to expand outward to squeeze the air chamber, thereby reducing its volume and increasing the pressure in the water tank. When the set maximum pressure P2 is reached, the water pump automatically stops pumping water. As the amount of water in the system decreases and the system pressure decreases, when the pressure drops to the design pressure P1, the pressure switch meets the set minimum pressure contact, the water pump automatically starts, and water is injected into the pipe network and water chamber again. Repeat the above process to ensure the water supply of the water supply system.

[0004] However, when P1 is closer to P2, the constant pressure of the water replenishment system is more stable, but the water pump needs to be started frequently, which is not friendly to the water pump. In addition, the constant pressure water replenishment system will retain a certain amount of water in the water tank for a long time, and this water will deteriorate if it does not flow for a long time. For this reason, the present application specifically proposes a constant pressure water replenishment device that does not require the use of a water pump, so as to solve the problems of the above-mentioned prior art. Utility Model Content

[0005] In order to overcome the above technical defects, the utility model provides a constant pressure water replenishment device, which can ensure uninterrupted water replenishment and constant water replenishment pressure without using a water pump.

[0006] The utility model is implemented according to the following technical solutions:

[0007] The utility model provides a constant pressure water replenishing device, which comprises:

[0008] Water storage tanks, the number of the water storage tanks is n, n ≥ 2, and n is an integer;

[0009] A water inlet pipe, connected to the water storage tank, for supplying water to the water storage tank to achieve a water inlet operation;

[0010] A water replenishment pipe, which is connected to the water storage tank and is used to replenish the water in the water storage tank to the water system network to achieve a water replenishment operation;

[0011] When a of the water storage tanks enters the water replenishment operation, the remaining b of the water storage tanks enter the water intake operation; when b of the water storage tanks complete the water intake, they enter the waiting water replenishment state; and when a of the water storage tanks completes the water replenishment operation, the remaining b of the water storage tanks enter the water replenishment operation, and at this time a of the water storage tanks enters the water intake operation, and the cycle is repeated alternately;

[0012] The water storage tank comprises a tank body and a bladder body, wherein the bladder body is arranged in the tank body to separate a water storage cavity and an air cavity; the water storage cavity is connected to the water inlet pipe and the water supply pipe;

[0013] The constant pressure water replenishing device also includes a vacuum pump, which is connected to the air cavity. Multiple water storage tanks share one vacuum pump;

[0014] The constant pressure water replenishing device also includes an air compressor, which is connected to the air cavity; one water storage tank is provided with one air compressor.

[0015] Compared with the prior art, the present application abandons the method of controlling pressure with a water pump, and innovatively pressurizes the air cavity through an air compressor, thereby adjusting the water replenishment pressure in the water storage cavity and achieving constant water replenishment pressure; and the present application ensures continuous constant pressure water replenishment to the water system network by controlling the water storage tanks to work alternately, thereby solving the serious problem of water deterioration in the water tank due to long-term stagnation or poor fluidity of the water in the water tank, and maximally ensuring the freshness of the water in the water tank.

[0016] In one embodiment, the constant pressure water replenishment device further comprises an air pressure sensor, and the air pressure sensor is located in the air cavity;

[0017] One of the water storage tanks is configured in conjunction with one of the air pressure sensors.

[0018] In one embodiment, the constant pressure water replenishment device also includes a drain pipe, and the drain pipe is connected to the water storage chamber.

[0019] In one embodiment, the constant pressure water replenishing device further includes a liquid level sensor, and the liquid level sensor is disposed in the water storage chamber.

[0020] In one embodiment, valves are provided on the water inlet pipe and the water supply pipe;

[0021] The constant pressure water replenishing device also includes a control device and a touch screen, and the control device is electrically connected to the valve, vacuum pump, air compressor, air pressure sensor and liquid level sensor;

[0022] The touch screen is electrically connected to the control device and is used to control the operation of the valve, vacuum pump, air compressor, air pressure sensor and liquid level sensor. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings, wherein:

[0024] Figure 1 It is a schematic diagram of the constant pressure water replenishing device of the utility model. DETAILED DESCRIPTION

[0025] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0026] In order to better illustrate the present invention, the present invention is further described in detail below with reference to the accompanying drawings.

[0027] It should be clear that the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the embodiments of the present application.

[0028] The terms used in the embodiments of the present application are only for the purpose of describing specific embodiments, and are not intended to limit the embodiments of the present application. The singular forms of "a", "said" and "the" used in the embodiments of the present application and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0029] When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. On the contrary, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the attached claims. In the description of the present application, it should be understood that the terms "first", "second", "third", etc. are only used to distinguish similar objects, and do not have to be used to describe a specific order or sequence, nor can they be understood as indicating or implying relative importance. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0030] In addition, in the description of this application, unless otherwise specified, "plurality" means two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the associated objects are in an "or" relationship.

[0031] In the prior art, a single expansion tank is used to replenish water in the water system network, wherein the water inlet pipe and the water replenishment pipe share the same pipe. When the water in the expansion tank is about to be exhausted, an external water source needs to supply water to the expansion tank through a pipe. At this time, since the only pipe is occupied, the expansion tank cannot replenish water to the water system network, and the replenishment needs to be suspended. During the process of suspending the replenishment, the pressure of the water system network will be unstable.

[0032] In order to solve the above problems, the utility model provides a constant pressure water replenishing device, which includes:

[0033] Water storage tanks, the number of the water storage tanks is n, n ≥ 2, and n is an integer;

[0034] A water inlet pipe 3, which is connected to the water storage tank and is used to supply water to the water storage tank to achieve water inlet operation;

[0035] A water replenishment pipe 4, which is connected to the water storage tank and is used to replenish the water in the water storage tank to the water system network to achieve a water replenishment operation;

[0036] When a of the water storage tanks enters the water replenishment operation, the remaining b of the water storage tanks enter the water filling operation; when b of the water storage tanks complete the water filling, they enter the waiting water filling state; and when a of the water storage tanks completes the water replenishment operation, the remaining b of the water storage tanks enter the water replenishment operation, and at this time a of the water storage tanks enters the water filling operation, and the alternating cycle ensures uninterrupted water replenishment;

[0037] Among them, it is necessary to satisfy a+b=n, a≥1 and a≠n, and a and b are both integers;

[0038] The water storage tank includes a tank body and a bladder body, and the bladder body is arranged in the tank body to separate a water storage chamber 2a and an air chamber 2b; the water storage chamber is connected to the water inlet pipe and the water replenishment pipe. The water inlet pipe is connected to municipal water, and the municipal water is input into the water storage chamber to realize the water inlet operation. The water replenishment pipe is connected to the water system network, and the water in the water storage chamber is supplemented to the water system network to realize the water replenishment operation. In addition, the bladder body separates the water storage chamber and the air chamber to prevent water from directly contacting the tank body, thereby playing an anti-rust role.

[0039] The constant pressure water replenishing device also includes a vacuum pump, which is connected to the air cavity. When the water storage tank needs to be filled with water, the vacuum pump works to enable the air cavity to generate negative pressure, which, in conjunction with the water inlet pipe, can ensure that the water inlet operation is completed smoothly.

[0040] Furthermore, a plurality of the water storage tanks share one vacuum pump, so as to reduce the number of vacuum pumps and reasonably save costs.

[0041] The constant pressure water replenishing device also includes an air compressor, which is connected to the air cavity. Since the gas in the air cavity will be discharged during the water filling operation, when the water storage tank needs to perform a water replenishment operation, the air compressor works to input gas into the air cavity to replenish the gas in the air cavity, and the pressure of the water storage cavity is adjusted, so that the water replenishment pressure during the water replenishment operation can be guaranteed to be constant.

[0042] Furthermore, one of the water storage tanks is configured in conjunction with one of the air compressors to achieve precise control of the pressure of each of the water storage tanks.

[0043] It should be noted that the air compressor shown maintains a constant pressure, which will have a narrowing effect between the upper limit P2 and the lower limit P1, and the constant pressure of the water replenishment system will become more stable.

[0044] Compared with the prior art, the present application abandons the method of controlling pressure by a water pump, and innovatively pressurizes the air cavity through an air compressor, thereby adjusting the water replenishment pressure in the water storage cavity to achieve constant water replenishment pressure; the present application controls the water storage tanks to work alternately, and the present application takes the number of the water storage tanks as 2 as an example for explanation, when one of the water storage tanks is performing a water replenishment operation on the water use system network, the other water storage tank is performing a water intake operation to prepare for the upcoming water replenishment operation, and through the alternating operation of the two water storage tanks, it is ensured that the water use system network is continuously replenished with water at a constant pressure; and because the two water storage tanks work alternately, it solves the serious problem that the water in the water tank is deteriorating due to long-term non-flow or poor fluidity, and the freshness of the water in the water tank is guaranteed to the greatest extent.

[0045] It should be noted that the present application is not limited to two water replenishment tanks. The number of water replenishment tanks can be increased or decreased according to the actual needs of the water system network to meet the water replenishment or water supply needs and achieve the maximum energy saving effect.

[0046] In this embodiment, the constant pressure water replenishing device also includes an air pressure sensor, which is connected to the air cavity, and the air pressure sensor is used to detect the air pressure of the air cavity in real time; and one water storage tank is equipped with one air pressure sensor, and is used in conjunction with the air compressor to achieve precise control of the pressure of each water storage tank.

[0047] In this embodiment, the constant pressure water replenishment device also includes a drain pipe 5, which is connected to the water storage chamber and is used to quickly drain the water in the water storage chamber in certain circumstances to prevent it from entering the water system network.

[0048] In this embodiment, the constant pressure water replenishing device also includes a liquid level sensor, which is arranged in the water storage chamber and is used to perform real-time detection of the liquid level in the water storage chamber to determine whether the current water storage tank needs to be filled with water and whether to suspend the water filling operation.

[0049] Furthermore, the liquid level sensor has a plurality of liquid level detection points.

[0050] In this embodiment, valves are provided on the water inlet pipe and the water supply pipe; the constant pressure water supply device also includes a vacuum pump, an air compressor, an air pressure sensor and a liquid level sensor, and the vacuum pump, air compressor, air pressure sensor and liquid level sensor are all connected to the water storage tank; the constant pressure water supply device also includes a control device and a touch screen, and the control device is electrically connected to the valve, vacuum pump, air compressor, air pressure sensor and liquid level sensor; the touch screen is electrically connected to the control device, and is used to visually control the operation of the valve, vacuum pump, air compressor, air pressure sensor and liquid level sensor. This application can control the operation of the valve, vacuum pump, air compressor, and electric operation by manipulating the touch screen, and the air pressure sensor and liquid level sensor can feed back data to the touch screen, and the staff can realize automatic operation by setting the corresponding liquid level parameters and air pressure parameters.

[0051] Specifically, the number of water storage tanks is 2 as an example for explanation (each valve is normally closed by default, and each water storage tank has no water at first):

[0052] Open valve 21 to connect the water tank 2 to the municipal water source, open valve 23, start the vacuum pump, and perform water intake operation; perform liquid level detection through the liquid level sensor 2, and when the liquid level in the water storage chamber of the water tank 2 reaches the set liquid level, close valve 21 and valve 23, open valve 24, start the air compressor 2 to start pressurizing the water tank 2, and when the pressure sensor 2 reaches the set pressure, open valve 22 to start water replenishment operation for the water use system pipeline.

[0053] When the user uses water to reduce the pressure in the water tank 2, and the pressure is lower than the set value, the air compressor 2 starts to pressurize the water tank 2 to maintain a constant pressure. When the liquid level sensor 2 in the water tank 2 detects that the water level drops to the set level, the valve 22 and the valve 24 are closed, and the water replenishment and pressurization of the water tank 2 are stopped. The system starts to fill the water tank 2 with water again.

[0054] When water tank 2 starts to replenish water, the system starts to fill water tank 1. When water tank 1 is filled with water, valve 11, valve 13 and vacuum pump are closed, and valve 14 and air compressor 1 are opened to pressurize water tank 1 until the pressure reaches the set value. Valve 12 is waiting for the command of the control device to open. When water tank 2 stops replenishing water and pressurizing, the system opens valve 12 and switches to water tank 1 for replenishing water. The system controls the two tanks alternately to ensure constant pressure water supply to users.

[0055] According to the disclosure and teaching of the above description, the technical personnel in the field to which the utility model belongs can also change and modify the above implementation. Therefore, the utility model is not limited to the specific implementation methods disclosed and described above, and some modifications and changes to the utility model should also fall within the scope of protection of the claims of the utility model. In addition, although some specific terms are used in this specification, these terms are only for the convenience of description and do not constitute any limitation to the utility model.

Claims

1. A constant pressure water replenishing device, characterized in that: include: Water storage tanks, the number of the water storage tanks is n, n ≥ 2, and n is an integer; A water inlet pipe, connected to the water storage tank, for supplying water to the water storage tank to achieve a water inlet operation; A water replenishment pipe, which is connected to the water storage tank and is used to replenish the water in the water storage tank to the water system network to achieve a water replenishment operation; When a of the water storage tanks enters the water replenishment operation, the remaining b of the water storage tanks enter the water intake operation; when b of the water storage tanks complete the water intake, they enter the waiting water replenishment state; and when a of the water storage tanks completes the water replenishment operation, the remaining b of the water storage tanks enter the water replenishment operation, and at this time a of the water storage tanks enters the water intake operation, and the cycle is repeated alternately; Among them, it is necessary to satisfy a+b=n, a≥1 and a≠n, and b is an integer; The water storage tank comprises a tank body and a bladder body, wherein the bladder body is arranged in the tank body to separate a water storage cavity and an air cavity; The water storage chamber is connected to the water inlet pipe and the water replenishment pipe; The constant pressure water replenishing device also includes a vacuum pump, which is connected to the air cavity; multiple water storage tanks share one vacuum pump; The constant pressure water replenishing device also includes an air compressor, which is connected to the air cavity; one water storage tank is provided with one air compressor.

2. The constant pressure water replenishing device according to claim 1, characterized in that: The constant pressure water replenishing device further comprises an air pressure sensor, and the air pressure sensor is located in the air cavity; One of the water storage tanks is configured in conjunction with one of the air pressure sensors.

3. The constant pressure water replenishing device according to claim 1, characterized in that: The constant pressure water replenishing device also includes a drain pipe, which is connected to the water storage chamber.

4. The constant pressure water replenishing device according to claim 1 or 3, characterized in that: The constant pressure water replenishing device also includes a liquid level sensor, and the liquid level sensor is arranged in the water storage cavity.

5. The constant pressure water replenishing device according to claim 4, characterized in that: The water inlet pipe and the water supply pipe are both provided with valves; The constant pressure water replenishing device also includes a control device and a touch screen, and the control device is electrically connected to the valve, vacuum pump, air compressor, air pressure sensor and liquid level sensor; The touch screen is electrically connected to the control device and is used to control the operation of the valve, vacuum pump, air compressor, air pressure sensor and liquid level sensor.

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