Water pressure air energy storage and air supply device

Abstract

The utility model discloses a water pressure air energy storage and air supply device which comprises a first regulation and storage tank, an energy storage and water supply tank, an air supply pipe, a second one-way valve and a first one-way valve. The bottom of the first regulation and storage tank is communicated with the bottom of the energy storage water replenishing tank through a water replenishing pipe, a shut-off valve C and a shut-off valve F are sequentially arranged on the water replenishing pipe, the water replenishing pipe is located between the shut-off valve C and the shut-off valve F and further communicated with the water inlet end of a pressurization mechanism, and the water outlet end of the pressurization mechanism is communicated with a water using area through a water supply pipe. The water supply pipe is communicated with the energy storage water supplementing tank through a shut-off valve D. The water supply pipe is further communicated with the first regulation and storage tank through a pressurizing pipe with a shut-off valve E. The pressure drop of the water using end can be self-adaptively and automatically compensated through the additionally arranged energy storage regulation and storage pipe, so that the water using end always keeps constant-pressure water supply, and the problem of insufficient pressure of the water using end caused by pressure-superposed water supply failure due to insufficient incoming water of a municipal pipe network in a water using peak period can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of water supply, in particular to the technical field of secondary pressurized water supply, and specifically to a water pressure air energy storage and air replenishing device. Background Art

[0002] Urban water supply generally uses pressurized secondary water supply, because the existing residential water supply height significantly exceeds the standard pressure of the municipal water network, and secondary or multiple pressurization is required to achieve tap water supply to high floors. The existing water supply is generally achieved by using a transfer water tank or a regulating pipe / tank. The principle of the existing secondary pressurized water supply is to use the booster pump in the regulating pipe to secondary pressurize the water source with no initial pressure in the water tank or the water source with municipal pipe pressure in the regulating pipe, and then supply water to the water use area, thereby achieving pressure water supply and meeting the purpose of normal water use on higher floors.

[0003] Superimposed water supply is a secondary boosting water supply method commonly used in the prior art. Since the amount of water used often does not match the water flow provided by the municipal pipe network, in order to ensure that the water consumption can be continuously guaranteed, it is necessary to add a water tank or a regulating pipe to make up for the flow difference between the municipal pipe network supply flow and the water flow. When the water consumption is greater than the supply of the municipal pipe network, the water in the regulating pipe or water tank is consumed. When the water consumption is less than the supply of the municipal pipe network, the water in the water tank or regulating pipe is continuously replenished by the municipal pipe network, so that the water is filled again to prepare for the subsequent peak water use. However, although this supply boosting method can meet the water use requirements of the water-using area, for continuous peak water use, the superimposed water supply environment is destroyed due to insufficient water supply, and the water pressure at the water outlet is difficult to achieve constant pressure water supply, and even the continuous lack of water supply may cause a short water outage; on the contrary, during continuous or low-flow low-peak water use, the booster pump will frequently start / stop, which may cause the booster pump to malfunction. In order to achieve the above technical effects and solve the above technical problems continuously and effectively, adding an air replenishing device to the storage system is a better choice, and for this purpose, an air replenishing device came into being.

[0004] Air replenishment systems leverage the compressibility and expandability of air to achieve pressure and water replenishment. Air replenishment devices can adopt various structural configurations, such as an airbag-based air replenishment structure. The advantage of this airbag-based air replenishment structure is that air is not consumed with use, eliminating the need for air replenishment. However, it also has a significant disadvantage: the airbag's effective storage range is relatively small, making it less commonly used. Another air replenishment device is a direct gas-liquid mixing system. This structure effectively expands storage capacity and maximizes the space for air compression and expansion. However, its disadvantage is that the long-term mixing of high-pressure gas and liquid consumes some air, necessitating refilling after a period of use. Otherwise, the remaining air volume decreases, resulting in a decrease in pressure and water replenishment capacity. To address the issue of air consumption, the simplest and most effective method in the prior art is to add air replenishment equipment, such as an air compressor. This method is the most direct and effective, but it involves additional equipment, increased energy consumption, and increased operating noise. To address the problem of low-energy air replenishment, the present utility model is provided. Utility Model Content

[0005] To address the shortcomings of existing air supply equipment, this application provides a water-pressure air energy storage air supply device, which is designed to solve the problems of the existing technology of using external air compressors for air supply, such as increased equipment, increased energy consumption, and increased operating noise, as well as the problems of gas consumption and inconvenience caused by using existing gas-liquid mixing tanks for air supply. This utility model utilizes different paths of water flow to achieve functions such as air intake, compression, pressurization, and energy storage.

[0006] In order to achieve the above objectives, the technical solutions adopted in this application are:

[0007] A hydraulic air energy storage and air replenishment device includes a first regulating tank and an energy storage and water replenishment tank. The tops of the first regulating tank and the energy storage and water replenishment tank are connected by an air replenishment pipe. The air replenishment pipe is provided with a second one-way valve. The air replenishment pipe is located between the first regulating tank and the second one-way valve. An air inlet pipe with a first one-way valve is provided. The air inlet pipe is located at one end of the first regulating tank and is provided with a negative pressure overflow valve.

[0008] The bottoms of the first regulating storage tank and the energy storage water replenishment tank are connected through a water replenishment pipe, on which a shut-off valve C and a shut-off valve F are sequentially arranged. The water replenishment pipe is located between the shut-off valve C and the shut-off valve F and is also connected to the water inlet end of the boosting mechanism. The water outlet end of the boosting mechanism is connected to the water use area through a water supply pipe. The water supply pipe is connected to the energy storage water replenishment tank through a shut-off valve D. The water supply pipe is also connected to the first regulating storage tank through a boosting pipe with a shut-off valve E. The first regulating storage tank is connected to the municipal pipeline network through a shut-off valve B.

[0009] In order to solve the pipeline air blockage problem caused by the drop in the liquid level in the first regulating tank due to the outage of the municipal pipeline, the increase of air and the excessive proportion of air in the system, it is preferred that the air supply pipe is provided with a bypass shut-off valve A between the first regulating tank and the second one-way valve to discharge the excess air in the first regulating tank. If the first regulating tank is empty or at the lowest liquid level due to the outage of the municipal pipeline, when water is restored, since the energy storage water supply tank is still at saturated high pressure, when water re-enters the first regulating tank, the air inside will be compressed and unable to be discharged, which will cause a large amount of air to remain in the first regulating tank, which will at least reduce the effective regulating volume of the first regulating tank. In severe cases, some air will enter the supply pipeline with the tap water, thereby causing the air blockage problem. The purpose of providing the shut-off valve A is to be able to discharge the excess air in a timely manner, restore the effective regulating volume of the first regulating tank to the greatest extent, and avoid the problem of excessive air intake due to temporary water shortage, resulting in an excessive proportion of air in the system, or even causing air blockage.

[0010] To prevent the drop in the liquid level in the first regulating and storage tank during peak water usage, which triggers a transient pressure boost from the pressurized water in the energy storage and replenishment tank, potentially leading to excessive pressure at the boosting mechanism's inlet and a potential transient high-pressure surge at the boosting mechanism's outlet, a pressure relief valve is preferably provided between the shut-off valve C and the boosting mechanism. This pressure relief valve mitigates the pressure surge caused by sudden pressure surges while still meeting the need for pressure replenishment, thereby achieving smooth and pressure-free replenishment. It's worth emphasizing that, since the boosting mechanisms in existing regulating and storage systems are equipped with protective devices, such as pressure feedback protection and flow feedback protection, the absence of a pressure relief valve does not adversely affect the regulating and storage system. However, the inclusion of a pressure relief valve allows for compatibility with a wider range of boosting mechanisms, including those without pressure feedback and flow feedback protection, thus expanding the practical scope of the present gas replenishment system.

[0011] To enhance the automation and intelligent control of this system, the energy storage and water replenishment tank is preferably provided with a liquid level sensor A for collecting the liquid level. The liquid level sensor A is electrically connected to a communication control unit, which is in turn electrically connected to an actuator unit. The actuator units include shutoff valves A, B, C, D, E, and F, and a pressurizing mechanism. Shutoff valves AF are preferably electrically controlled valves, such as suitable solenoid valves or electric butterfly valves.

[0012] In order to better regulate the air flow and liquid level in the first regulating storage tank, preferably, a liquid level sensor B and a pressure sensor A electrically connected to the communication control unit are further provided in the first regulating storage tank.

[0013] In order to simplify the structure and increase the personalized design of the system so that different structures can meet different application scenarios, preferably, the water inlet end of the boosting mechanism is connected to the first regulating tank through a water inlet pipe provided with a shut-off valve F, or the water inlet end of the boosting mechanism is connected to the shut-off valve F and is built into the inner bottom of the first regulating tank.

[0014] In order to avoid excessive air proportion in the energy storage and water replenishment tank, which would reduce the effective storage volume, preferably, a shut-off valve C for exhaust is further provided on the top of the energy storage and water replenishment tank.

[0015] In order to meet the air replenishment needs of an integrated regulating storage pipe with no inspection port, such as a regulating storage tank with an in-pipe pump (silent pump), preferably, a partition is provided in the first regulating storage tank for dividing the interior of the first regulating storage tank into independent chamber A and chamber B, the boosting mechanism is installed in the chamber B, and the shut-off valve E, the air inlet pipe, the shut-off valve B and the shut-off valve F are all connected to the chamber A.

[0016] In order to solve the problem of independent water supply in multiple zones, preferably, there are multiple energy storage and water replenishment tanks, and the boosting mechanism includes multiple boosting units. Any boosting unit is connected to at least one energy storage and water replenishment tank, and any energy storage and water replenishment tank is connected to the outlet end of the boosting mechanism through an independent or shared shut-off valve D, and any energy storage and water replenishment tank is connected to the first regulating tank where the water inlet end of the boosting mechanism is located through an independent shut-off valve C.

[0017] Beneficial effects:

[0018] The problem of air consumption in existing water supply and storage systems using compressed air to replenish water and storage devices is solved. The utility model can use different water flow paths to achieve functions such as air intake, compression, pressurization, and energy storage, thereby completing the air replenishment of the system without adding external equipment, making full use of the improvement of the system structure to solve the air replenishment problem. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative labor.

[0020] Figure 1 It is a structural diagram of a normal water supply system of the utility model.

[0021] Figure 2 This is a schematic diagram of the system structure when the utility model performs peak power regulation.

[0022] Figure 3 It is a schematic diagram of the system structure for air replenishment and pressurization of the utility model.

[0023] Figure 4 It is a structural diagram of the utility model for a small flow replenishment water supply system at night.

[0024] Figure 5 This is a schematic diagram of an implementation structure in which the boosting mechanism in the utility model is installed in the first regulating storage tank.

[0025] Figure 6 The utility model is a schematic diagram of an implementation structure of a storage and regulation system with a pump in a tube (silent pump).

[0026] Figure 7 This is a block diagram of the structure of the multi-zone water supply in Example 5.

[0027] In the figure: 1-first regulating tank; 2-energy storage water supply tank; 3-air supply pipe; 4-air inlet pipe; 5-first one-way valve; 6-shut-off valve A; 7-second one-way valve; 8-shut-off valve B; 9-shut-off valve G; 10-liquid level sensor A; 11-water supply pipe; 12-shut-off valve C; 13-pressure relief valve; 14-shut-off valve D; 15-water supply pipe; 16-water inlet pipe; 17-boosting mechanism; 18-boosting pipe; 19-shut-off valve E; 20-liquid level sensor B; 21-shut-off valve F; 22-partition. DETAILED DESCRIPTION

[0028] To make the objectives, technical solutions, and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Generally, the components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0029] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for protection, but merely represents selected embodiments of the present application. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments in the present application without making any creative efforts shall fall within the scope of protection of the present application.

[0030] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0031] In the description of this application, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the product of the application is usually placed when in use. It is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, it cannot be understood as a limitation on this application. In addition, if the terms "first", "second", etc. appear in the description of this application, they are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0032] Furthermore, the use of terms such as "horizontal" and "vertical" in the description of this application does not necessarily imply that a component must be absolutely horizontal or suspended, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical" and does not mean that the structure must be completely horizontal, but rather that it can be slightly tilted.

[0033] It should also be noted that, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood broadly. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. A person of ordinary skill in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0034] Example 1:

[0035] See the instructions attached Figures 1-4 The water-pressure air energy storage and air replenishment device shown includes a first regulating tank 1 and an energy storage and water replenishment tank 2. The tops of the first regulating tank 1 and the energy storage and water replenishment tank 2 are connected through an air replenishment pipe 3. The air replenishment pipe 3 is provided with a second one-way valve 7. The air replenishment pipe 3 is located between the first regulating tank 1 and the second one-way valve 7 and is provided with an air intake pipe 4 with a first one-way valve 5. The air intake pipe 4 is located at one end of the first regulating tank 1 and is provided with an anti-negative pressure overflow valve. It should be noted here that the anti-negative pressure overflow valve is used to avoid negative pressure in the tank when the liquid level in the first regulating tank 1 is lowered and the pressure in the first regulating tank 1 is lower than the standard atmospheric pressure, so that outside air can naturally enter the tank to balance the pressure. When the liquid level in the first regulating tank 1 rises and contacts the anti-negative pressure overflow valve, the anti-negative pressure overflow valve is closed under the action of buoyancy to avoid water overflow and play a sealing role.

[0036] The bottoms of the first regulating storage tank 1 and the energy storage water replenishment tank 2 are connected through a water replenishment pipe 11, on which a shut-off valve C12 and a shut-off valve F21 are sequentially provided. The water replenishment pipe 11 is located between the shut-off valve C12 and the shut-off valve F21 and is also connected to the water inlet end of the boosting mechanism 17. The water outlet end of the boosting mechanism 17 is connected to the water use area through a water supply pipe 15. The water supply pipe 15 is connected to the energy storage water replenishment tank 2 through a shut-off valve D14. The water supply pipe 15 is also connected to the first regulating storage tank 1 through a boosting pipe 18 with a shut-off valve E19. The first regulating storage tank 1 is connected to the municipal pipeline network through a shut-off valve B8.

[0037] Structure and working principle:

[0038] In order to more clearly explain the various structural components and working principles of this system, the following will be explained in different scenarios, as follows:

[0039] Scenario 1: Normal water supply, see Figure 1 The structure shown.

[0040] This scenario is the longest-working and most commonly used scenario of this system, and is occupied by the normal water supply scenario almost most of the time. Its working principle is: the tap water in the municipal pipe network enters the first regulating storage tank 1 through the shut-off valve B8 and is stored in the first regulating storage tank 1. During normal water supply, the boosting mechanism 17 pumps water from the first regulating storage tank 1, and after being pressurized by the boosting mechanism 17, it is supplied to the water-using area, so that users at different floor heights can use tap water smoothly. This process is the traditional working process of the existing superimposed water supply system. When the municipal pipe network has sufficient water supply, the working principle of this system is basically the same as the existing superimposed water supply system.

[0041] Scenario 2: Peak water storage, see Figure 2 The system structure is shown.

[0042] To effectively distinguish this embodiment from existing superimposed water supply systems, the principle of normal superimposed water supply will first be explained. During peak water demand, when the water flow rate from the booster mechanism 17 exceeds the water flow rate from the municipal pipeline entering the first regulating tank 1 through the shut-off valve B8, as water supply continues, the water stored in the first regulating tank 1 is in a state of "inflow exceeding expenditure." Consequently, the liquid level in the first regulating tank 1 continues to drop. As the liquid level drops, air naturally enters the first regulating tank 1 through the air inlet pipe 4 and the first one-way valve 5. At this point, superimposition fails, and the air in the first regulating tank 1 is directly connected to the atmosphere. The pressure is normal atmospheric pressure, not the pressure from the municipal pipeline, and superimposition cannot be maintained. If the liquid level continues to drop, there are two existing approaches to this problem: one is to use up the water in the first regulating tank 1; the other is to shut down the system when the water level drops to a preset system value, waiting for the municipal pipeline to continuously inject water to reach the startup level before restarting the system to supply water. This causes two problems in water supply: first, the superposition fails, the power of the booster mechanism 17 needs to be greater, and the energy consumption will increase significantly; second, the water supply is suspended, and there is no other water source as a backup supply, which easily causes intermittent water outages during peak water use periods.

[0043] In this embodiment, during peak water usage, that is, when the water flow rate of the boosting mechanism 17 is greater than the water flow rate entering the first regulating storage tank 1 through the shut-off valve B8 from the municipal pipeline, as the water supply continues, the water stored in the first regulating storage tank 1 is in a state of "inflow not expenditure". Therefore, when the liquid level in the first regulating storage tank 1 begins to drop, or when the system reaches the system set value according to the input power of the boosting mechanism 17, or when the pressure in the first regulating storage tank 1 decreases, or for peak water usage with strong regularity, the start of the peak water usage period can be used as a trigger condition for opening the shut-off valve C12. When the shut-off valve C12 is opened, since the energy storage water replenishment tank 2 is always in a pressurized state, after the shut-off valve C12 is opened, the pressurized water in the energy storage water replenishment tank 2 will quickly replenish the first regulating storage tank 1 under the action of the compressed air, thereby solving the problem of superimposition failure or even water supply cessation caused by insufficient water supply from the municipal pipeline. Compared with the prior art, the pressurized water in the energy storage and water replenishment tank 2 of this embodiment can be used as backup pressurized water for capacity expansion, which is substantially different from single pressure replenishment and water replenishment. Because single water replenishment can be achieved by increasing the volume of the regulating tank or expanding the capacity, but no matter how large the volume of the regulating tank is increased, once the water supply of the municipal pipe network is insufficient, it will instantly cause superposition failure, that is, the pressurized water in the regulating tank becomes pressureless water under standard atmospheric pressure, which will greatly increase the power consumption of the boosting mechanism 17. This is also substantially different from single pressure replenishment. Although single pressure replenishment can theoretically achieve a superposition state, it will also cause shutdown due to insufficient water supply, thereby causing water outage during peak water use. This embodiment can greatly alleviate the problems of superposition failure, water outage, etc. caused by insufficient water supply from the municipal pipe network during peak water use periods by replenishing the pressurized water in the energy storage and water replenishment tank 2. Another technical innovation of this system is that the storage pressure of the energy storage water replenishment tank 2 is significantly higher than the stacking pressure. Therefore, the replenishment of pressurized water in the energy storage water replenishment tank 2 will not cause the stacking failure due to the replenishment pressure being lower than the stacking pressure as the replenishment progresses. Figure 1As shown, the energy storage and replenishment tank 2 is connected to the water supply pipe 15 via a shut-off valve D14. When the energy storage and replenishment tank 2 is normally pressurized, its stored pressure is consistent with the pressure at the outlet of the booster mechanism 17, which is significantly higher than the superimposed pressure of the municipal pipeline network. For example, the water supply pressure of the municipal pipeline network is generally 2-3 bar, while the pressure at the outlet of the booster mechanism 17 is generally around 7-12 bar. Therefore, even when the pressurized water in the energy storage and replenishment tank 2 is about to reach the minimum water level, its pressure can still maintain the basic municipal pipeline pressure value. Even when the compressed air energy in the energy storage and replenishment tank 2 decreases due to expansion, the pressure value remains positive and does not drop to normal atmospheric pressure. Therefore, the process of replenishing pressurized water in the energy storage and replenishment tank of this embodiment is continuous. During this process, if the water supply flow rate from the municipal pipeline network is equal to the water supply flow rate of the booster mechanism 17, the stored water in the energy storage and replenishment tank 2 will not be consumed, thereby extending the effective replenishment time of the pressurized water. When the compensation duration period of the energy storage water replenishment tank 2 can completely cover the peak water consumption, the water consumption during the entire peak water consumption period will not be affected by pressure and continuous supply.

[0044] Scenario 3: Use water to replenish gas and boost pressure during low-peak hours, see Figure 3 System structure.

[0045] Air replenishment process: During low-peak or nighttime water consumption, shut-off valve B8, shut-off valve C12, and shut-off valve D14 are closed. As water consumption continues, the liquid level in the first regulating storage tank 1 continues to drop. To prevent negative pressure in the first regulating storage tank 1, air enters the first regulating storage tank 1 from the air inlet pipe 4 through the first one-way valve 5, resulting in some air in the first regulating storage tank 1. Then, shut-off valve C12 is opened. Under the action of compressed air in the energy storage and water replenishment tank 2, the water in the tank rapidly enters the first regulating storage tank 1, causing the pressure and liquid level in the first regulating storage tank 1 to rise synchronously, eventually reaching pressure equilibrium. At this point, the first regulating storage tank 1 and the energy storage and water replenishment tank 2 are in a state of interconnection. When the pressure reaches equilibrium and the air replenishment action cannot be completed, it is necessary to close the shutoff valve F21 and open the shutoff valve C12. When the boosting mechanism 17 is in operation, the water in the energy storage and water replenishment tank 2 will be pumped into the first regulating tank 1 after being pressurized, so that the air in the first regulating tank 1 is pressed into the energy storage and water replenishment tank 2, completing the air replenishment process. It should be noted that as long as air enters the first regulating tank 1, air replenishment can be achieved regardless of the proportion of air, thereby compensating for the air consumption caused by the water-air mixing in the energy storage and water replenishment tank 2 under long-term pressure. One of the preferred solutions created by the present invention can be optimized based on the above-mentioned structure of this embodiment, that is, the amount of newly inhaled air is collected by the liquid level sensor B built into the first regulating tank 1, and the amount of air or compressed air currently in the energy storage and water replenishment tank 2 is collected by the liquid level sensor A preset in the energy storage and water replenishment tank 2, thereby achieving precise air replenishment and dynamically adjusting the amount of compressed air in the energy storage and water replenishment tank 2. Of course, as another preferred solution, the pressure sensor B set in the energy storage water replenishment tank 2 can also be used to collect the pressure in the energy storage water replenishment tank and the liquid level sensor A10 as a reference for whether air replenishment is needed. When the pressure reaches the preset maximum pressure value and the liquid level is between the preset minimum liquid level and the maximum liquid level, air replenishment is not needed; when the pressure value reaches the maximum pressure value and the liquid level is below the minimum liquid level, it is too much air replenishment and needs to be deflated; when the pressure value reaches the maximum pressure value and the liquid level is above the maximum liquid level, air replenishment is needed.

[0046] Pressurization process: When the shut-off valve D14 is opened, under the action of the pressurization mechanism 17, the pressure in the energy storage water supply tank 2 will instantly reach the pressure at the water outlet of the pressurization mechanism 17, and will be in a high-pressure maintaining state, thereby achieving the effect of energy storage.

[0047] Scenario 4: Nighttime small flow self-recharge, see Figure 4 The system structure is shown.

[0048] When the water consumption at night is very small, since the pressure in the energy storage water replenishment tank 2 is the same as the pressure of the boosting mechanism 17, the energy storage water replenishment tank 2 can be connected to the water use area by opening the shut-off valve D14. When there is a small flow of water in the water use area at night, natural replenishment can be achieved without starting the boosting mechanism 17 for mechanical boosting supply, thereby achieving the purpose of reducing the working frequency of the boosting mechanism 17 and reducing energy consumption.

[0049] The beneficial effects of this embodiment are as follows: the additional energy storage and regulating pipe can adaptively and automatically compensate for the pressure drop at the water-using end, so that the water-using end always maintains a constant pressure water supply, which can solve the problem of insufficient pressure at the water-using end caused by the failure of superimposed water supply due to insufficient water from the municipal pipeline network during peak water use.

[0050] This embodiment uses an energy storage and regulating pipe to adaptively supply energy. Within the supply flow range of the energy storage and regulating pipe, the booster pump will not be triggered to start. This significantly reduces the frequency of the booster pump's nighttime starts and stops, extending the booster pump's service life. This solves the problem of low water consumption, such as at night, when water consumption is low and intermittent, causing the booster pump to start frequently, resulting in increased starts and stops and shortening the booster pump's service life.

[0051] Example 2:

[0052] This embodiment, based on the above-mentioned embodiment 1, further optimizes the arrangement to address the pipeline air blockage problem caused by the drop in the liquid level in the first regulating storage tank 1 due to a municipal water outage, resulting in an increase in air and an excessive proportion of air in the system. The air supply pipe 3 is provided with a bypass shut-off valve A6 between the first regulating storage tank 1 and the second one-way valve 7 for discharging excess air from the first regulating storage tank 1. If the first regulating storage tank 1 is empty or at its lowest liquid level due to a municipal water outage, when water is restored, the air in the energy storage water supply tank 2 is still at saturated high pressure. When water re-enters the first regulating storage tank 1, the air inside will be compressed and unable to be discharged. This will result in a large amount of air in the first regulating storage tank 1, which at best reduces the effective regulating volume of the first regulating storage tank 1, and at worst causes some air to enter the supply pipeline along with the tap water, thereby causing the air blockage problem. The purpose of setting the shut-off valve A6 is to discharge excess air in time, restore the effective storage volume of the first regulating tank 1 to the greatest extent, and avoid excessive air intake due to temporary water shortage, resulting in too high a proportion of air in the system, and even causing air blockage.

[0053] To prevent excessive pressure at the inlet of the boosting mechanism 7, which could be caused by a drop in the liquid level in the first regulating reservoir 1 during peak water usage, triggering a transient pressure boost from the pressurized water in the energy storage and replenishment tank 2, and potentially resulting in a transient high-pressure surge at the outlet of the boosting mechanism 7, a pressure relief valve 13 is provided in this embodiment between the shutoff valve C12 and the boosting mechanism 7. The pressure relief valve 13 mitigates pressure surges caused by sudden pressure increases while still meeting the requirements for pressurized water replenishment, thereby achieving smooth and pressure-free replenishment. It is worth emphasizing that, since the boosting mechanism 7 in existing regulating and storage systems is equipped with protective devices, such as pressure feedback protection and flow feedback protection, the absence of the pressure relief valve 13 does not adversely affect the regulating and storage system. However, the provision of the pressure relief valve 13 allows for compatibility with a wider range of boosting mechanisms 7, including those without pressure feedback protection and flow feedback protection, thereby expanding the practical scope of the present gas replenishment system.

[0054] To enhance the automation and intelligent control of this system, in this embodiment, a liquid level sensor A10 is provided within the energy storage and water replenishment tank 2 for collecting liquid level information. This liquid level sensor A10 is electrically connected to a communication control unit, which is in turn electrically connected to an actuator unit. These actuator units include shutoff valves A6, B8, C12, D14, E19, F21, and a pressurizing mechanism 17. Shutoff valves AF are preferably electrically controlled valves, such as suitable solenoid valves or electric butterfly valves.

[0055] In order to better regulate the air flow and liquid level in the first regulating storage tank 1 , in this embodiment, a liquid level sensor B and a pressure sensor A electrically connected to the communication control unit are further provided in the first regulating storage tank 1 .

[0056] Example 3:

[0057] In order to simplify the structure and increase the personalized design of the system so that different structures can meet different application scenarios, in this embodiment, the water inlet end of the boosting mechanism 17 is connected to the first regulating storage tank 1 through the water inlet pipe 16 provided with a shut-off valve F21, or the water inlet end of the boosting mechanism 17 is connected to the shut-off valve F21 and is built into the inner bottom of the first regulating storage tank 1. Figure 5 As shown, the boosting mechanism 17 is built into the first regulating storage tank 1 to meet the diversified structural installation and layout of the regulating storage tank and the boosting pump; the external way of the boosting mechanism 17 can effectively realize the centralized installation layout of the shut-off valve, which is more operable for the manually adjusted regulating storage system. Figure 5In the structure shown, the shut-off valve F21 is preferably an electric valve. If a manual valve is required, the control rod for controlling the shut-off valve F21 needs to be extended to the outside of the first regulating storage tank 1 in a sealed manner, or the shut-off valve F21 needs to be led out of the first regulating storage tank 1 through a pipeline, thereby satisfying the structural solution of the boosting mechanism 17 being built into the first regulating storage tank 1.

[0058] To prevent excessive air content in the energy storage and replenishment water tank 2, which would reduce the effective storage capacity, a shut-off valve G9 is provided on the top of the energy storage and replenishment water tank 2 in this embodiment. The shut-off valve G9 opens when the liquid level in the energy storage and replenishment water tank 2 at rated pressure falls below a preset minimum water level, releasing air. This ensures that sufficient water is available in the energy storage and replenishment water tank 2 for storage or replenishment, preventing the air content in the energy storage and replenishment water tank 2 from increasing, resulting in insufficient water for replenishment.

[0059] Example 4:

[0060] In order to meet the gas replenishment demand of the integrated regulating storage pipe with no inspection port, such as the regulating storage tank with a pipe-in-pump (silent pump), this embodiment is further optimized on the basis of embodiment 3, and also provides a second system structure with a built-in installation of the boosting mechanism 17, see Figure 6 As shown, specifically, a partition 22 is provided in the first regulating storage tank 1 for dividing the interior of the first regulating storage tank 1 into independent chamber A and chamber B, the boosting mechanism 17 is installed in the chamber B, and the shut-off valve E19, the air intake pipe 4, the shut-off valve B8 and the shut-off valve F21 are all connected to the chamber A.

[0061] The operating principle of this embodiment is essentially the same as that of Examples 1 and 3, except that a partition 22 is added to the first regulating and storage tank 1. During normal water supply, water passes sequentially through shutoff valve B8, chamber A of the first regulating and storage tank 1, shutoff valve F21, and then into chamber B of the first regulating and storage tank 1. After being pressurized by booster mechanism 17, it is delivered through shutoff valve D14 to the water supply pipe 15 and finally to the user area. During this time, shutoff valves C12 and E19 are both closed. During peak water use, the energy storage and replenishment tank 2 replenishes water to chamber B of the first regulating and storage tank 1 by opening shutoff valves D14 and C12. This principle is essentially the same as that described in Example 1. When replenishing air, the shut-off valve B8 is also closed. At this time, there is no water in the A chamber of the first regulating tank 1. As the water supply continues, the liquid level in the A chamber will drop, and the pressure will also drop. At this time, the outside air will pass through the air inlet pipe 4 and the first one-way valve 5 into the A chamber, and the system completes the air addition. However, it is the energy storage water replenishment tank 2 that needs to be replenished with air, so the air entering the A chamber also needs to be pressed into the energy storage water replenishment tank 2. The process of the system pressurizing the energy storage water replenishment tank 2 is as follows:

[0062] Close shutoff valve F21 and shutoff valve D14, and open shutoff valve C12 and shutoff valve E19, so that the water in the energy storage and replenishment tank 2 is automatically replenished into chamber B of the first regulating tank 1 under pressure. When the boosting mechanism 17 is working, the pressurized water will enter chamber A of the first regulating tank 1 and continue to increase the pressure, causing the air in chamber A to be continuously compressed. When the pressure is greater than the air pressure in the energy storage and replenishment tank 2, air replenishment begins, and air enters the energy storage and replenishment tank 2 from chamber A of the first regulating tank 1 until the air replenishment is completed. It is worth noting that since the energy storage and replenishment tank 2 is itself a gas-liquid mixed energy storage tank, even after the air in chamber A of the first regulating tank has completely entered the energy storage and replenishment tank 2, the boosting mechanism 17 continues to operate, which is considered internal circulation and will not cause the air in the energy storage and replenishment tank 2 to escape. Of course, in order to achieve precise control, all shut-off valves of the present invention are preferably electric valves that are communicatively connected to the control unit, using sensing elements including liquid level sensors and / or pressure sensors to collect information for the communication control unit to complete logical judgment and issue control instructions for closed-loop, precise control. It is worth noting that the closed-loop control of the communication control unit is a very mature existing technology in current industrial control. Those skilled in the art can flexibly choose from existing technologies, such as PLC logic control, etc., which are not listed one by one.

[0063] Example 5:

[0064] See the instructions attached Figure 7 As shown, in this embodiment, based on any of the above embodiments, there are multiple energy storage and water replenishment tanks 2, and the boosting mechanism 17 includes multiple boosting units. Any boosting unit is connected to at least one energy storage and water replenishment tank 2, and any energy storage and water replenishment tank 2 is connected to the outlet end of the boosting mechanism 17 through an independent or shared shut-off valve D14, and any energy storage and water replenishment tank 2 is connected to the first regulating tank 1 where the water inlet end of the boosting mechanism 17 is located through an independent shut-off valve C12. The above structural system enables multiple boosting units to be installed in the same first regulating storage tank 1 to independently supply water to different water use areas. For example, the first boosting unit supplies water to the low area, the second boosting unit supplies water to the middle area, and the third boosting unit supplies water to the high area; any boosting unit is connected to at least one independent energy storage and water replenishment tank 2 according to the structural method of Example 1. Of course, when a larger regulation or water replenishment demand is required, one boosting unit can also correspond to multiple interconnected energy storage and water replenishment tanks 2, which is equivalent to expanding the effective energy storage and water replenishment capacity. For details, see Figure 7As shown; and any independent energy storage water replenishment tank 2 is connected to the corresponding water-using area through a shut-off valve D14, so that water can be replenished independently. In the case of water supply to multiple areas, when replenishing air, the principle is the same as that of Example 1, but as another system structure for multi-area water supply, in order to avoid replenishing air to each energy storage water replenishment tank 2 during air replenishment, a shut-off valve H can be added to the air replenishment pipe 3, so that for the energy storage water replenishment tank 2 that does not need air replenishment, the shut-off valve H can be closed to refuse air replenishment or maintain the original pressure. In this way, multiple areas can share the storage volume and air and water replenishment volume according to actual needs, and can also independently play the role of regulating and stabilizing pressure in the corresponding area, achieving multi-faceted and multi-purpose considerations.

[0065] The above description is merely a preferred embodiment of the present application and is not intended to limit the present application. Various modifications and variations are possible for those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. A hydraulic air energy storage and air replenishing device, characterized in that: The invention comprises a first regulating storage tank (1) and at least one energy storage water supply tank (2) for storing energy, wherein the tops of the first regulating storage tank (1) and the energy storage water supply tank (2) are connected via an air supply pipe (3), the air supply pipe (3) is provided with a second one-way valve (7), the air supply pipe (3) is located between the first regulating storage tank (1) and the second one-way valve (7), and an air intake pipe (4) with a first one-way valve (5) is provided, and the air intake pipe (4) is located at one end of the first regulating storage tank (1) and is provided with a negative pressure overflow valve; The bottoms of the first regulating storage tank (1) and the energy storage water replenishment tank (2) are connected through a water replenishment pipe (11). A shut-off valve C (12) and a shut-off valve F (21) are sequentially arranged on the water replenishment pipe (11). The water replenishment pipe (11) is located between the shut-off valve C (12) and the shut-off valve F (21) and is also connected to the water inlet end of the boosting mechanism (17). The water outlet end of the boosting mechanism (17) is connected to the water use area through a water supply pipe (15). The water supply pipe (15) is connected to the energy storage water replenishment tank (2) through a shut-off valve D (14). The water supply pipe (15) is also connected to the first regulating storage tank (1) through a boosting pipe (18) with a shut-off valve E (19). The first regulating storage tank (1) is connected to the municipal pipe network through a shut-off valve B (8).

2. A hydraulic air energy storage and air replenishing device according to claim 1, characterized in that: The air supply pipe (3) is located between the first regulating tank (1) and the second one-way valve (7) and is provided with a bypass shut-off valve A (6) for discharging excess air in the first regulating tank (1).

3. The hydraulic air energy storage and air replenishing device according to claim 1, characterized in that: A pressure relief valve (13) is provided between the shut-off valve C (12) and the pressure boosting mechanism (17).

4. The hydraulic air energy storage and air replenishing device according to claim 2, characterized in that: A liquid level sensor A (10) for collecting liquid level height is provided in the energy storage water replenishment tank (2); the liquid level sensor A (10) is electrically connected to a communication control unit; the communication control units are electrically connected to execution units; the execution units include a shutoff valve A (6), a shutoff valve B (8), a shutoff valve C (12), a shutoff valve D (14), a shutoff valve E (19), a shutoff valve F (21) and a pressurizing mechanism (17).

5. The hydraulic air energy storage and air replenishing device according to claim 4, characterized in that: The first regulating storage tank (1) is further provided with a liquid level sensor B (20) and a pressure sensor A electrically connected to the communication control unit.

6. The hydraulic air energy storage and air replenishing device according to claim 1, characterized in that: The water inlet end of the boosting mechanism (17) is connected to the first regulating storage tank (1) via a water inlet pipe (16) provided with a shutoff valve F (21), or the water inlet end of the boosting mechanism (17) is connected to the shutoff valve F (21) and is built into the inner bottom of the first regulating storage tank (1).

7. A water-pressure air energy storage and air replenishing device according to any one of claims 1 to 6, characterized in that: A shut-off valve G (9) for exhaust is also provided on the top of the energy storage water replenishment tank (2).

8. The hydraulic air energy storage and air replenishing device according to claim 1, characterized in that: The first regulating storage tank (1) is provided with a partition (22) for dividing the interior of the first regulating storage tank (1) into independent chambers A and B. The pressurizing mechanism (17) is installed in the chamber B. The shutoff valve E (19), the air inlet pipe (4), the shutoff valve B (8) and the shutoff valve F (21) are all connected to the chamber A.

9. A water-pressure air energy storage and air replenishing device according to any one of claims 1-6 and 8, characterized in that: The number of the energy storage water replenishment tanks (2) is multiple, and the boosting mechanism (17) includes multiple boosting units. Each boosting unit is correspondingly connected to at least one energy storage water replenishment tank (2), and each energy storage water replenishment tank (2) is connected to the outlet end of the boosting mechanism (17) through an independent or shared shutoff valve D (14), and each energy storage water replenishment tank (2) is connected to the first regulating storage tank (1) where the water inlet end of the boosting mechanism (17) is located through an independent shutoff valve C (12).

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