Water supply system and elastic air bag damage detection device

Abstract

The invention provides a water supply system and an elastic air bag damage detection device. A shell is made of a conductive material, an elastic air bag is hung in the shell through a first fixing structure, the elastic air bag is fixed above a water inlet through a second fixing structure, and water is conveyed into the elastic air bag or output from the elastic air bag; the water pump is communicated with the pressure tank through a water inlet channel, the water inlet channel is communicated with the water inlet, and the water outlet channel is communicated with the elastic air bag, or when water needs to be supplied by the pressure tank, water stored in the elastic air bag is output through the water outlet channel through variable pressure difference; the elastic air bag damage detection device comprises a first electrode and a second electrode, the first electrode is a shell or a conductive structural member arranged on the shell, a first gap can be formed between the second electrode and the shell, and the first gap is used for containing water entering the air chamber through a damage point of the elastic air bag. Whether the elastic air bag is damaged or not is judged based on whether the first electrode and the second electrode are communicated or not.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of water supply, in particular to a water supply system and an elastic air bag damage detection device. BACKGROUND

[0002] In the process of the pressure tank, if the elastic air bag is damaged, water will enter the air chamber at the damage point, thus causing the air in the air chamber to dissolve into the water, thereby polluting the water, in addition, the presence of water in the air chamber will also breed bacteria, in addition, more seriously, it will cause the pressure tank to lose the normal water storage function.

[0003] Therefore, in the existing scheme, a hole is usually opened on the pressure tank, and a fault detection sensor is placed in the hole, which is in communication with the air chamber to detect whether there is water entering the air chamber through the damage point on the elastic air bag. However, this way, since a hole needs to be opened on the pressure tank, the structural integrity of the shell will be damaged; the existence of the hole on the shell will cause the pressure difference between the first space and the second space to be too large, thereby causing the elastic air bag to be stretched too much and causing gas leakage and elastic air bag rupture and failure; if the elastic air bag is stretched too much and contacts the accessories on the shell, it will also cause damage to the elastic air bag. SUMMARY

[0004] The purpose of the present application is to provide a water supply system and an elastic air bag damage detection device to solve or alleviate the problems existing in the prior art.

[0005] In order to achieve the above-mentioned purpose, the present application provides the following technical scheme:

[0006] A water supply system, comprising: a water pump, a pressure tank, an elastic air bag damage detection device, a water inlet channel, and a water outlet channel, wherein:

[0007] The pressure tank comprises a shell, an elastic air bag, a water inlet, a first fixing structure, and a second fixing structure, the shell is made of a conductive material, the elastic air bag is hung in the shell through the first fixing structure, and the elastic air bag is fixed above the water inlet through the second fixing structure, so as to use the remaining space in the shell except the elastic air bag as a gas chamber, and based on the variable pressure difference between the gas chamber and the elastic air bag, water is transported into or output from the elastic air bag;

[0008] The water pump and the pressure tank are in communication through the water inlet channel, the water inlet channel is in communication with the water inlet, and the water outlet channel is in communication with the elastic air bag, so as to input water into the elastic air bag through the variable pressure difference when the water pump is working, or output the water stored in the elastic air bag through the water outlet channel through the variable pressure difference when water supply is needed from the pressure tank.

[0009] The elastic air bag breakage detection device comprises a first electrode and a second electrode, the first electrode is a conductive structure provided on the shell or the shell, the second electrode can form a first gap with the shell, the first gap is used for accommodating water entering the gas chamber through the breakage point of the elastic air bag, the water can make the first electrode and the second electrode electrically connected, and whether the elastic air bag is broken is judged based on whether the first electrode and the second electrode are connected.

[0010] An elastic air bag breakage detection device applied to the pressure tank of any one of the embodiments of the application, the elastic air bag breakage detection device comprises: whether the elastic air bag is broken is based on the implementation of the elastic air bag breakage detection device, the elastic air bag breakage detection device comprises a first electrode and a second electrode, the first electrode is a conductive structure provided on the shell or the shell, the second electrode can form a first gap with the shell, the first gap is used for accommodating water entering the gas chamber through the breakage point of the elastic air bag, the water can make the first electrode and the second electrode electrically connected, and whether the elastic air bag is broken is judged based on whether the first electrode and the second electrode are connected. BRIEF DESCRIPTION OF DRAWINGS

[0011] The drawings accompanying the specification of this application serve to provide further understanding of the application, the illustrative embodiments of the application and the description thereof serve to explain the application, and do not constitute an improper limitation on the application. Among them:

[0012] Figure 1 The water supply system structure schematic diagram provided for the embodiments of the application.

[0013] Figure 2 The schematic diagram of the pressure tank of the embodiments of the application.

[0014] Figure 3 Another schematic diagram of the pressure tank of the embodiments of the application.

[0015] Figure 4 Still another schematic diagram of the pressure tank of the embodiments of the application.

[0016] Figure 5 Still another schematic diagram of the pressure tank of the embodiments of the application. DETAILED DESCRIPTION

[0017] The application will be described in detail below with reference to the drawings and embodiments. Various examples are provided by way of explanation of the application but not to limit the application. In fact, those skilled in the art will appreciate that modifications and variations to the application can be made without departing from the scope or spirit of the application. For example, features shown or described as one embodiment can be used in another embodiment to produce yet another embodiment. It is, therefore, desired that the application be deemed to include all such modifications and variations as fall within the scope of the appended claims and their equivalents.

[0018] In the description of the present application, the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and does not require the present application to be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application. The terms "connected", "connected", "provided" used in the present application should be interpreted broadly, for example, can be fixedly connected, can also be detachably connected; can be directly connected, can also be indirectly connected through intermediate components; the specific meaning of the above terms can be understood by those skilled in the art according to the specific circumstances.

[0019] Figure 1 The water supply system structure schematic diagram provided for the embodiments of the present application. Figure 2 The schematic diagram of pressure irrigation of the embodiments of the present application. Figure 3 Another schematic diagram of pressure irrigation of the embodiments of the present application. Figure 4 Still another schematic diagram of pressure irrigation of the embodiments of the present application. Figure 5 Still another schematic diagram of pressure irrigation of the embodiments of the present application.

[0020] As shown in Figure 1 , the water supply system comprises a water pump 1, a pressure tank 2, an elastic air bag damage detection device, a water inlet channel 4 and a water outlet channel 5.

[0021] As shown in Figures 2-5As shown, the pressure tank 2 comprises a housing 21 made of conductive material, an elastic air bag 22 hung in the housing 21 through the first fixing structure 24, a water inlet 23, a first fixing structure 24 and a second fixing structure 25. The elastic air bag 22 is fixed above the water inlet 23 through the second fixing structure 25, so as to take the remaining space in the housing 21 except the elastic air bag 22 as a gas chamber S1, and based on the variable pressure difference between the gas chamber S1 and the elastic air bag 22, water is transported into or output from the elastic air bag 22. The elastic air bag 22 is made of insulating material such as EPDM (Ethylene Propylene Diene Monomer, abbreviated as ethylene propylene rubber) or butyl rubber, so as to form a variable structure of the water storage space S2.

[0022] The water pump 1 and the pressure tank 2 are communicated through the water inlet channel 4 which is communicated with the water inlet 23, and the water outlet channel 5 which is communicated with the elastic air bag 22, so as to input water into the elastic air bag 22 through the variable pressure difference when the water pump 1 works, or output the water stored in the elastic air bag 22 through the water outlet channel 5 through the variable pressure difference when water supply is needed by the pressure tank 2.

[0023] Further Figure 1 As shown, the elastic air bag breakage detection device comprises a first electrode 31 which is the housing 21 or a conductive structure arranged thereon, and a second electrode 32 which can form a first gap S3 with the housing 21. The first gap S3 is used to accommodate water entering the gas chamber S1 through the breakage point of the elastic air bag 22, and the water can make the first electrode 31 and the second electrode 32 electrically connected, so as to judge whether the elastic air bag 22 is broken based on whether the first electrode 31 and the second electrode 32 are connected.

[0024] The conductive structure can be, but is not limited to, an air valve 211, a pressure gauge 212 or a screw and the like which penetrates into the gas chamber S1, so as to make the first electrode 31 and the second electrode 32 electrically connected when there is water in the gas chamber S1.

[0025] Optionally, the second electrode 32 can form the first gap S3 with the housing 21 through the first fixing structure 24 and / or the second fixing structure 25.

[0026] To this end, the first electrode 31 is provided on the shell 21 or a conductive structure arranged thereon, and the second electrode 32 is spaced apart from the shell 21 by the first fixing structure 24 and / or the second fixing structure 25 to form a first gap S3, so that no hole needs to be formed on the shell 21, and at least one of the following situations can be avoided: the structural integrity of the shell 21 is damaged; the elastic air bag 22 is excessively stretched due to the excessive pressure difference between the elastic air bag 22 and the gas chamber S1 caused by the hole formed on the shell 21, resulting in gas leakage and rupture and failure of the elastic air bag 22; the elastic air bag 22 is excessively stretched to contact the accessories on the shell 21, resulting in damage to the elastic air bag 22.

[0027] In a specific application scenario, if the pressure tank is placed vertically, the first fixing structure 24 is located at the top of the pressure tank 2, which can also be referred to as a hanging bag structure; in addition, the second fixing structure 25 is located at the bottom of the pressure tank, so that water can be delivered to the elastic air bag 22 through the water inlet 23, or water can be output from the elastic air bag 22.

[0028] Optionally, the second fixing structure 25, such as a flange module, can include a first flange 251 and a second flange 252, the first flange 251 and the second flange 252 are fixed together, and the elastic air bag 22 is clamped between the first flange 251 and the second flange 252 to fix the elastic air bag 22 above the water inlet 23.

[0029] Specifically, for the sake of distinction, the first flange 251 is also referred to as a pressure tank flange, and the second flange 252 is also referred to as an external flange. In addition, if the pressure tank 2 is placed vertically, the first flange 251 is located above the second flange 252.

[0030] Optionally, the second electrode 32 is spaced apart from the shell 21 by the second flange 252 to form a first gap S3, so that the water entering the elastic air bag 22 can be accommodated in the first gap S3, and the first electrode 31 and the second electrode 32 are electrically connected to determine whether the elastic air bag 22 is damaged and the water in the elastic air bag 22 enters the gas chamber S1, otherwise, it is determined that the elastic air bag 22 is not damaged.

[0031] Here, the above-mentioned first gap S3 is formed on the basis of ensuring that the pressure tank can work normally.

[0032] In addition, the above-mentioned way of forming the first gap S3 is only an example and is not the only limitation.

[0033] In the above description, the first gap S3 is formed between the second electrode 32 and the second fixed structure 25, but in other scenarios, the second electrode 32 can also form the first gap S3 in a similar manner with the first fixed structure 24.

[0034] Optionally, when the first gap S3 is implemented based on the second fixed structure 25, if the second flange 252 includes a flange 2521 with a conductive structure thereon, the conductive structure serves as the second electrode 32 and can form the first gap S3 with the shell 21.

[0035] Here, the flange 2521 has a conductive structure, the entire material of the flange 2521 is a conductive material, or part of the flange 2521 is made of a conductive material, so that when there is water in the elastic air bag 22, the first electrode 31 and the second electrode 32 can be electrically connected.

[0036] Optionally, the first flange 251 and the second flange 252 are fixed together by a metal structure 250, the metal structure 250 and the second flange 252 form a through gap and a horizontal gap, and an insulating structure is arranged in the through gap and the horizontal gap to prevent the first flange 251 and the second flange 252 from forming a short circuit to cause the first electrode 31 and the second electrode 32 to be mistakenly connected.

[0037] In one scenario, the metal structure 250 can be a bolt. When the pressure tank is placed vertically, the bolt passes through the first flange 251 and the second flange 252 in the vertical direction, thereby fixing the first flange 251 and the second flange 252. The number of metal structures 250 is not limited.

[0038] Of course, in some embodiments, if the metal structure 250 is not used, but other insulating materials are used to fix the first flange 251 and the second flange 252, the insulating structure does not need to be provided.

[0039] Here, it should be noted that the metal structure 250 is a bolt, which is only an example and is not limited.

[0040] Optionally, referring to Figure 3 , the insulating structure includes an insulating sleeve 2501 and an insulating gasket 2502, the insulating sleeve 2501 is sleeved on the periphery of the metal structure 250 to be accommodated in the through gap, and the insulating gasket 2502 is arranged in the horizontal gap.

[0041] Alternatively, referring to Figure 4The insulating structure is a bolt isolation washer 2503, which is assembled with the metal structure 250 to seal the through gap and the horizontal gap.

[0042] Alternatively, in other embodiments, the insulating structure is a gasket made of insulating material or coated with an insulating coating, which seals the through gap and the horizontal gap.

[0043] Optionally, referring to Figure 5 The system further comprises a shielding seal 2504 arranged between the first flange 251 and the second flange 252 and located at the periphery of the through gap to shield the electrically conductive liquid in the external environment from connecting the first electrode 31 and the second electrode 32.

[0044] For the above-mentioned first fixing structure, the enterprise can be similar to the second flange structure, or other structure forms, as long as it is convenient to fix the elastic air bag.

[0045] Optionally, the water supply system can further comprise a cover made of non-conductive material to cover the shell 21 to avoid the misconnection of the first electrode 31 and the second electrode 32.

[0046] Alternatively, other shielding structures can also be used to avoid the misconnection of the first electrode 31 and the second electrode 32.

[0047] Here, it should be noted that the number of the above-mentioned first electrode 31 and the second electrode 32 is not limited to one-to-one, one-to-many, or many-to-many, as long as the water in the gas chamber S1 caused by the damage of the elastic air bag 22 further forms a connection between at least one first electrode 31 and at least one second electrode 32, and the detection of the damage of the elastic air bag 22 can be achieved.

[0048] Optionally, the electrically conductive liquid in the external environment includes but is not limited to rainwater or condensed water, etc.

[0049] Therefore, the water inlet 23 is multiplexed as the water outlet, so that the pressure tank 2 only needs to be provided with one inlet. However, in some other application scenarios, an output port can also be separately provided on the pressure tank 2, which is in communication with the water outlet channel 5 to deliver the water in the pressure tank 2 to the outside.

[0050] Here, when water is delivered outwards through the water inlet 23 and the water outlet channel 5, the pressure difference generally changes from large to small, and when water is delivered to the pressure tank through the water inlet 23 and the water inlet channel 4, the pressure difference generally changes from small to large, until the pressure difference reaches a set state, that is, to ensure that water can be delivered to the pressure pump, and to ensure that the elastic air bag 22 does not appear to be over-inflated and damaged.

[0051] Optionally, the elastic air bag breakage detection device further comprises a detection circuit 33, a power supply and a switch module, the power supply is electrically connected with the switch module, and the switch module is electrically connected with the first electrode 31 and the second electrode 32 respectively, so as to generate a detection signal with variable characteristics based on whether the first electrode 31 and the second electrode 32 are connected, and the detection signal is used to judge whether the elastic air bag 22 is broken.

[0052] For example, when the first electrode 31 and the second electrode 32 are electrically connected, the switch module is in a first state, and a detection signal with a first characteristic is generated based on the first state. When the first electrode 31 and the second electrode 32 are disconnected, the switch module is in a second state different from the first state, and a detection signal with a second characteristic is generated based on the second state, the second characteristic is different from the first characteristic, and if the detection signal changes from the second characteristic to the first characteristic, it is determined whether the elastic air bag 22 is broken.

[0053] Specifically, for example, the first state is that the switch module is in a closed state, and the second state is that the switch module is in an open state, so that the first characteristic is that the detection signal corresponds to a high level, and the second characteristic is that the detection signal corresponds to a low level.

[0054] In the above embodiment, the water inlet channel 4 includes various possible structural components that can enable the water pump 1 to deliver water to the pressure tank, such as water inlet pipes and valves, metering devices, etc. arranged on the water inlet pipes, and the water outlet channel 5 includes various possible structural components that can enable the water in the pressure tank or the water delivered by the water pump 1 to be provided to the demand equipment, such as water outlet pipes and valves, metering devices, etc. arranged on the water inlet pipes.

[0055] The embodiment of the present application also provides a pressure tank, which comprises a shell, an elastic air bag, a water inlet, a first fixing structure and a second fixing structure, the shell is made of a conductive material, the elastic air bag is hung in the shell through the first fixing structure, and the elastic air bag is fixed above the water inlet through the second fixing structure, so as to use the remaining space in the shell except the elastic air bag as a gas chamber, and deliver water into or out of the elastic air bag based on a variable pressure difference between the gas chamber and the elastic air bag.

[0056] The pressure tank is communicated with a water pump through the water inlet channel, the water inlet channel is communicated with the water inlet, and the water outlet channel is communicated with the elastic air bag, so that water is input into the elastic air bag through the variable pressure difference when the water pump works, or water stored in the elastic air bag is output through the water outlet channel through the variable pressure difference when water supply by the pressure tank is needed.

[0057] Whether the elastic air bag is damaged is implemented based on an elastic air bag damage detection device, the elastic air bag damage detection device includes a first electrode and a second electrode, the first electrode is the shell or a conductive structure arranged on the shell, the second electrode can form a first gap with the shell, the first gap is used to accommodate water entering the gas chamber through a damage point of the elastic air bag, the water can make the first electrode and the second electrode electrically connected, so as to judge whether the elastic air bag is damaged based on whether the first electrode and the second electrode are connected.

[0058] The application further provides an elastic air bag damage detection device, which is applied to the pressure tank in any one of the application, and includes: whether the elastic air bag is damaged is implemented based on an elastic air bag damage detection device, the elastic air bag damage detection device includes a first electrode and a second electrode, the first electrode is the shell or a conductive structure arranged on the shell, the second electrode can form a first gap with the shell, the first gap is used to accommodate water entering the gas chamber through a damage point of the elastic air bag, the water can make the first electrode and the second electrode electrically connected, so as to judge whether the elastic air bag is damaged based on whether the first electrode and the second electrode are connected.

[0059] In addition, in the above embodiments, the pressure tank 2 is placed vertically in use. However, in some other embodiments, the pressure tank 2 can be placed horizontally according to the needs of the application scene.

[0060] The above only describes the preferred embodiments of the application and is not intended to limit the application. Those skilled in the art can make various modifications and changes to the application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the application shall be included in the protection scope of the application.

Claims

1. A water supply system, characterized by The utility model relates to a water pump, pressure tank, elastic air bag breakage detection device, water inlet channel, water outlet channel, wherein: The pressure tank includes a shell, an elastic air bag, a water inlet, a first fixing structure, and a second fixing structure. The shell is made of conductive material. The elastic air bag is hung in the shell through the first fixing structure and is fixed above the water inlet through the second fixing structure. The remaining space in the shell except the elastic air bag is used as a gas chamber. Water is transported into or output from the elastic air bag based on the variable pressure difference between the gas chamber and the elastic air bag. The water pump and the pressure tank are connected through the water inlet channel, which is connected with the water inlet. The water outlet channel is connected with the elastic air bag to input water into the elastic air bag through the variable pressure difference when the water pump is working or output the water stored in the elastic air bag through the water outlet channel when water supply is needed. The elastic air bag breakage detection device includes a first electrode and a second electrode. The first electrode is the shell or a conductive structure provided on the shell. The second electrode can form a first gap with the shell. The first gap is used to accommodate water entering the gas chamber through the broken point of the elastic air bag. The water can make the first electrode and the second electrode electrically connected to determine whether the elastic air bag is broken based on whether the first electrode and the second electrode are connected. The second electrode can form a first gap with the shell through the first fixing structure and / or the second fixing structure.

2. The system of claim 1, wherein, The second fixing structure includes a first flange and a second flange. The first flange is fixed with the second flange and makes the elastic air bag clamped between the first flange and the second flange to fix the elastic air bag above the water inlet.

3. The system according to any of claims 1-2, characterized in that, The second electrode forms a first gap with the shell through the second flange.

4. The system of claim 3, wherein, The second flange includes a flange with a conductive structure as the second electrode and a first gap with the shell. The first flange and the second flange are fixed together through a metal structure. The metal structure forms a through gap and a horizontal gap with the second flange. An insulating structure is arranged in the through gap and the horizontal gap to prevent the first flange and the second flange from forming a short circuit to make the first electrode and the second electrode misconnect.

5. The system of claim 4, wherein, The insulating structure includes an insulating sleeve and an insulating gasket. The insulating sleeve is sleeved on the periphery of the metal structure to accommodate in the through gap. The insulating gasket is padded in the horizontal gap. The insulating structure is a bolt isolation gasket assembled with the metal structure to close the through gap and the horizontal gap.

6. The system of claim 5, wherein, ​ 7. The system of claim 6, wherein, ​ ​ The insulating structure is a gasket, the gasket is made of insulating material, or the surface of the gasket is coated with an insulating coating, and the gasket seals the through gap and the horizontal gap.

8. The system of claim 6, wherein, The system further comprises a shielding seal arranged between the first flange and the second flange and located at the periphery of the through gap, so as to shield the conductive liquid in the external environment from mis-connecting between the first electrode and the second electrode.

9. The system according to any of claims 1-8, characterized in that, The elastic air bag breakage detection device further comprises a detection circuit, a power supply and a switch module, the power supply is electrically connected with the switch module, the switch module is electrically connected with the first electrode and the second electrode respectively, so as to generate a detection signal with variable characteristics based on whether the first electrode and the second electrode are connected, and the detection signal is used to judge whether the elastic air bag is broken.

10. An air bag breakage detection device characterized by comprising: The elastic air bag breakage detection device comprises a first electrode and a second electrode, the first electrode is a conductive structure arranged on the shell or the shell, and the second electrode can form a first gap with the shell, the first gap is used to accommodate water entering the gas chamber through the breakage point of the elastic air bag, the water can make the first electrode and the second electrode electrically connected, and whether the elastic air bag is broken is judged based on whether the first electrode and the second electrode are connected.

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