Damage detection device for pressure tank and elastic air bag

Abstract

The utility model provides a pressure tank 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, and the elastic air bag is fixed above a water inlet through a second fixing structure, so that the residual space except the elastic air bag in the shell is used as a gas chamber; based on the variable pressure difference between the gas chamber and the elastic air bag, water is conveyed into the elastic air bag or output from the elastic air bag; the pressure tank is communicated with the water pump 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, so that water is input into the elastic air bag through 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 needs to be supplied by the pressure tank; whether the elastic air bag is damaged or not is detected based on the elastic air bag damage detection device.

Description

Technical Field

[0001] The present application relates to the field of water supply technology, and in particular to a pressure tank and elastic airbag damage detection device. Background Art

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

[0003] To this end, in the existing solutions, a hole is usually opened on the pressure tank, and a fault detection sensor is placed in the hole. The fault detection sensor is connected to the air chamber to detect whether there is water in the air chamber that enters the air chamber through the damaged point on the elastic airbag. However, this method requires opening a hole in the pressure tank, which will destroy the structural integrity of the shell; the presence 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 airbag to overstretch, resulting in gas leakage and the elastic airbag to rupture and fail; if the elastic airbag is overstretched and contacts the accessories on the shell, it will cause the elastic airbag to be damaged. Utility Model Content

[0004] The purpose of the present application is to provide a pressure tank and elastic airbag damage detection device to solve or alleviate the problems existing in the above-mentioned prior art.

[0005] In order to achieve the above objectives, this application provides the following technical solutions:

[0006] A pressure tank, comprising: a shell, an elastic airbag, a water inlet, a first fixing structure, and a second fixing structure, wherein the shell is made of a conductive material, the elastic airbag is suspended in the shell by the first fixing structure, and the elastic airbag is fixed above the water inlet by the second fixing structure, so that the remaining space in the shell except the elastic airbag is used as a gas chamber, and water is transported into the elastic airbag or output from the elastic airbag based on a variable pressure difference between the gas chamber and the elastic airbag;

[0007] The pressure tank is connected to the water pump through the water inlet channel, the water inlet channel is connected to the water inlet, and the water outlet channel is connected to the elastic airbag, so that when the water pump is working, water is input into the elastic airbag through the variable pressure difference, or when the pressure tank needs to supply water, the water stored in the elastic airbag is output through the water outlet channel through the variable pressure difference;

[0008] Whether the elastic airbag is damaged is implemented based on an elastic airbag damage detection device, and the elastic airbag damage detection device includes a first electrode and a second electrode. The first electrode is the shell or a conductive structure arranged thereon, and the second electrode can form a first gap with the shell. The first gap is used to accommodate water that enters the gas chamber through the damage point of the elastic airbag. The water can make the first electrode and the second electrode electrically connected, so as to judge whether the elastic airbag is damaged based on whether the first electrode and the second electrode are connected.

[0009] An elastic airbag damage detection device, which is applied to the pressure tank described in any one of the embodiments of the present application, the elastic airbag damage detection device includes: whether the elastic airbag is damaged is implemented based on the elastic airbag damage detection device, the elastic airbag damage detection device includes a first electrode and a second electrode, the first electrode is the shell or a conductive structural member arranged thereon, 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 damage point of the elastic airbag, and the water can make the first electrode and the second electrode electrically connected, so as to judge whether the elastic airbag is damaged based on whether the first electrode and the second electrode are connected. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The drawings constituting part of the present application are used to provide a further understanding of the present application. The exemplary embodiments and descriptions of the present application are used to explain the present application and do not constitute an improper limitation on the present application. Among them:

[0011] Figure 1 A schematic diagram of the water supply system structure provided in an embodiment of the present application.

[0012] Figure 2 It is a schematic diagram of a pressure tank according to an embodiment of the present application.

[0013] Figure 3 Another schematic diagram of the pressure tank according to the embodiment of the present application.

[0014] Figure 4 This is another schematic diagram of the pressure tank according to the embodiment of the present application.

[0015] Figure 5 This is another schematic diagram of the pressure tank according to the embodiment of the present application. DETAILED DESCRIPTION

[0016] The present application will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments. Each example is provided by way of explanation of the present application and does not limit the present application. In fact, it will be clear to those skilled in the art that modifications and variations may be made in the present application without departing from the scope or spirit of the present application. For example, a feature shown or described as a part of an embodiment may be used in another embodiment to produce yet another embodiment. Therefore, it is desired that the present application includes such modifications and variations within the scope of the appended claims and their equivalents.

[0017] In the description of this application, the terms "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this application and do not require that this application must be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on this application. The terms "connected", "connected", and "set" used in this application should be understood in a broad sense. For example, they can be fixed connections or detachable connections; they can be directly connected or indirectly connected through intermediate components. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0018] Figure 1 A schematic diagram of the water supply system structure provided in an embodiment of the present application. Figure 2 It is a schematic diagram of a pressure tank according to an embodiment of the present application. Figure 3 Another schematic diagram of the pressure tank according to the embodiment of the present application. Figure 4 This is another schematic diagram of the pressure tank according to the embodiment of the present application. Figure 5 This is another schematic diagram of the pressure tank according to the embodiment of the present application.

[0019] like Figure 1 As shown, the water supply system includes: a water pump 1, a pressure tank 2, an elastic airbag damage detection device, a water inlet channel 4, and a water outlet channel 5.

[0020] like Figure 2-Figure 5As shown, the pressure tank 2 includes a shell 21, an elastic airbag 22, a water inlet 23, a first fixing structure 24, and a second fixing structure 25. The shell 21 is made of a conductive material. The elastic airbag 22 is suspended in the shell 21 by the first fixing structure 24, and the elastic airbag 22 is fixed above the water inlet 23 by the second fixing structure 25, so that the remaining space in the shell 21 except the elastic airbag 22 is used as a gas chamber S1, and based on the variable pressure difference between the gas chamber S1 and the elastic airbag 22, water is transported to the elastic airbag 22 or output from the elastic airbag 22. The elastic airbag 22 is made of an insulating material, such as EPDM (Ethylene Propylene Diene Monomer, referred to as ethylene propylene rubber) or butyl rubber, so as to form a variable structure of the water storage space S2.

[0021] The water pump 1 and the pressure tank 2 are connected through the water inlet channel 4, the water inlet channel 4 is connected to the water inlet 23, and the water outlet channel 5 is connected to the elastic airbag 22, so that when the water pump 1 is working, water is input into the elastic airbag 22 through the variable pressure difference, or, when the pressure tank 2 needs to supply water, the water stored in the elastic airbag 22 is output through the water outlet channel 5 through the variable pressure difference.

[0022] For example Figure 1 As shown, the elastic airbag damage detection device includes a first electrode 31 and a second electrode 32. The first electrode 31 is the shell 21 or a conductive structure arranged thereon. The second electrode 32 can form a first gap S3 with the shell 21. The first gap S3 is used to accommodate water that enters the gas chamber S1 through the damage point of the elastic airbag 22. The water can make the first electrode 31 and the second electrode 32 electrically connected, so as to judge whether the elastic airbag 22 is damaged based on whether the first electrode 31 and the second electrode 32 are connected.

[0023] The conductive structure may be, for example but not limited to, an air valve 211, a pressure gauge 212 or a screw, etc., which penetrate into the gas chamber S1, so as to enable electrical communication between the first electrode 31 and the second electrode 32 when there is water in the gas chamber S1.

[0024] Optionally, a first gap S3 may be formed between the second electrode 32 and the housing 21 through the first fixing structure 24 and / or the second fixing structure 25 .

[0025] To this end, by using the first electrode 31 as the shell 21 or a conductive structural member arranged thereon, the second electrode 32 can form a first gap S3 with the shell 21 through the first fixed structure 24 and / or the second fixed structure 25, so there is no need to open a hole in the shell 21, thereby avoiding at least one of the following situations: destroying the structural integrity of the shell 21; due to opening a hole in the shell 21, the pressure difference between the elastic airbag 22 and the gas chamber S1 is too large, resulting in excessive stretching of the elastic airbag 22, causing gas leakage and rupture and failure of the elastic airbag 22; the elastic airbag 22 is overstretched and contacts the accessories on the shell 21, causing damage to the elastic airbag 22.

[0026] In a specific application scenario, if the pressure tank is placed vertically, the first fixed structure 24 is located at the top of the pressure tank 2, which can also be called a hanging bag structure; in addition, the second fixed structure 25 is located at the bottom of the pressure tank, so that water can be transported to the elastic airbag 22 through the water inlet 23, or water can be output from the elastic airbag 22.

[0027] Optionally, the second fixing structure 25, such as a flange module, may include a first flange 251 and a second flange 252, wherein the first flange 251 and the second flange 252 are fixed together, and the elastic airbag 22 is clamped between the first flange 251 and the second flange 252 to fix the elastic airbag 22 above the water inlet 23.

[0028] Specifically, for the convenience of distinction, the first flange 251 is also called the pressure tank flange, and the second flange 252 is also called the external flange. In addition, if the pressure tank 2 is placed vertically, the first flange 251 is located above the second flange 252.

[0029] Optionally, the second electrode 32 forms a first gap S3 with the shell 21 through the second flange 252, so that water entering the elastic airbag 22 can be contained in the first gap S3, and further the first electrode 31 and the second electrode 32 are electrically connected to determine that the elastic airbag 22 is damaged so that the water in the elastic airbag 22 enters the gas chamber S1; otherwise, it is determined that the elastic airbag 22 is not damaged.

[0030] Here, the formation of the first gap S3 is set on the basis of ensuring that the pressure tank can work normally.

[0031] In addition, the above-mentioned method of forming the first gap S3 is only an example and is not limited to the only one.

[0032] In the above description, the first gap S3 is formed between the second electrode 32 and the second fixed structure 25 . However, in other scenarios, the second electrode 32 may also form the first gap S3 with the first fixed structure 24 in a similar manner.

[0033] Optionally, when the first gap S3 is realized based on the second fixing structure 25 , if the second flange 252 includes a flange 2521 , the flange 2521 has a conductive structure, and the conductive structure serves as the second electrode 32 and can form the first gap S3 with the shell 21 .

[0034] The flange 2521 here has a conductive structure, including the entire material of the flange 2521 being a conductive material, or a part of the flange 2521 being made of a conductive material, etc., so that when there is water in the elastic airbag 22, the first electrode 31 and the second electrode 32 can be electrically connected.

[0035] Optionally, the first flange 251 and the second flange 252 are fixed together by a metal structural member 250, and a through gap and a horizontal gap are formed between the metal structural member 250 and the second flange 252. Insulating structural members are provided in the through gap and the horizontal gap, and the insulating structural member is used to prevent the first flange 251 and the second flange 252 from forming a short circuit so as to prevent the first electrode 31 and the second electrode 32 from being accidentally connected.

[0036] In one scenario, the metal structure 250 may be, for example, a bolt. When the pressure tank is placed vertically, the bolt passes through the first flange 251 and the second flange 252 vertically, thereby achieving fixation between the first flange 251 and the second flange 252. The number of the metal structure 250 is not limited to a unique number.

[0037] Of course, in some embodiments, if the metal structural member 250 is not used, and a structural member made of other insulating materials is used to fix the first flange 251 and the second flange 252, the insulating structural member does not need to be provided.

[0038] Here, it should be noted that the metal structural member 250 is a bolt, which is only an example and not a sole limitation.

[0039] Alternatively, see Figure 3 The insulating structural member includes an insulating sleeve 2501 and an insulating gasket 2502. The insulating sleeve 2501 is sleeved on the periphery of the metal structural member 250 to be accommodated in the through gap, and the insulating gasket 2502 is padded in the horizontal gap.

[0040] Alternatively, see Figure 4The insulating structural member is a bolt-type isolation washer 2503, and the bolt-type isolation washer 2503 is assembled together with the metal structural member 250 to close the through gap and the horizontal gap.

[0041] Alternatively, in another embodiment, the insulating structural member is a gasket, the material of the gasket is an insulating material, or the surface of the gasket is coated with an insulating coating, and the gasket closes the through gap and the horizontal gap.

[0042] Alternatively, see Figure 5 The system further includes: a shielding seal 2504, which is disposed between the first flange 251 and the second flange 252 and is located outside the through gap to shield the conductive liquid in the external environment from causing the first electrode 31 and the second electrode 32 to be accidentally connected. In addition, the shielding seal 2504 can also serve as a spacer between the first flange 251 and the second flange 252 to facilitate assembly.

[0043] For the above-mentioned first fixing structure, the enterprise may adopt a structure similar to the second flange, or may adopt other structural forms as long as it is convenient for fixing the elastic airbag.

[0044] Optionally, the water supply system may further include a cover made of a non-conductive material to cover the housing 21 to avoid misconnection between the first electrode 31 and the second electrode 32 .

[0045] Alternatively, other shielding structures may also be used to avoid misconnection between the first electrode 31 and the second electrode 32 .

[0046] Here, it should be noted that the number of the above-mentioned first electrodes 31 and the second electrodes 32 is not limited to a unique number, and can be a one-to-one relationship, a one-to-many relationship, or a many-to-many relationship. As long as the elastic airbag 22 is damaged and water exists in the gas chamber S1, at least one of the first electrodes 31 and at least one of the second electrodes 32 can be connected to each other, so that the damage of the elastic airbag 22 can be detected.

[0047] Optionally, the conductive liquid in the external environment includes but is not limited to rainwater or condensed water.

[0048] To this end, the water inlet 23 is reused 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 outlet can also be separately provided on the pressure tank 2, and the outlet is connected to the water outlet channel 5 to transport the water in the pressure tank 2 to the outside.

[0049] Here, when water is transported outward through the water inlet 23 and the water outlet channel 5, the pressure difference generally changes from large to small, and when water is transported to the pressure pump 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 the set state, that is, it is ensured that the water can be transported to the pressure pump, and the elastic airbag 22 will not be destroyed due to excessive expansion.

[0050] Optionally, the elastic airbag damage detection device also includes: a detection circuit 33, a power supply and a switch module, the power supply is electrically connected to the switch module, and the switch module is electrically connected to the first electrode 31 and the second electrode 32 respectively, so as to generate a characteristic variable detection signal based on whether the first electrode 31 and the second electrode 32 are connected, and the detection signal is used to determine whether the elastic airbag 22 is damaged.

[0051] 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, which is different from the first state, and a detection signal with a second characteristic is generated based on the second state, which is different from the first characteristic. If the detection signal changes from the second characteristic to the first characteristic, it is determined whether the elastic airbag 22 is damaged.

[0052] 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. Therefore, the first feature is that the detection signal corresponds to a high level, and the second feature is that the detection signal corresponds to a low level.

[0053] In the above embodiment, the water inlet channel 4 includes various possible structural components that enable the water pump 1 to transport water to the pressure tank, such as a water inlet pipe and valves and metering devices arranged on the water inlet pipe, and the water outlet channel 5 includes various possible structural components that enable the water in the pressure tank or the water transported by the water pump 1 to be provided to the demanding equipment, such as a water outlet pipe and valves and metering devices arranged on the water inlet pipe.

[0054] The embodiment of the present application further provides a pressure tank, which includes: a shell, an elastic airbag, a water inlet, a first fixing structure, and a second fixing structure, wherein the shell is made of a conductive material, the elastic airbag is suspended in the shell by the first fixing structure, and the elastic airbag is fixed above the water inlet by the second fixing structure, so that the remaining space in the shell except the elastic airbag is used as a gas chamber, and based on the variable pressure difference between the gas chamber and the elastic airbag, water is transported into the elastic airbag or water is output from the elastic airbag;

[0055] The pressure tank is connected to the water pump through the water inlet channel, the water inlet channel is connected to the water inlet, and the water outlet channel is connected to the elastic airbag, so that when the water pump is working, water is input into the elastic airbag through the variable pressure difference, or when the pressure tank needs to supply water, the water stored in the elastic airbag is output through the water outlet channel through the variable pressure difference;

[0056] Whether the elastic airbag is damaged is implemented based on an elastic airbag damage detection device, and the elastic airbag damage detection device includes a first electrode and a second electrode. The first electrode is the shell or a conductive structure arranged thereon, and the second electrode can form a first gap with the shell. The first gap is used to accommodate water that enters the gas chamber through the damage point of the elastic airbag. The water can make the first electrode and the second electrode electrically connected, so as to judge whether the elastic airbag is damaged based on whether the first electrode and the second electrode are connected.

[0057] An embodiment of the present application also provides an elastic airbag damage detection device, which is applied to the pressure tank described in any one of the embodiments of the present application, and the elastic airbag damage detection device includes: whether the elastic airbag is damaged is implemented based on the elastic airbag damage detection device, and the elastic airbag damage detection device includes a first electrode and a second electrode. The first electrode is the shell or a conductive structural member arranged thereon, and the second electrode can form a first gap with the shell. The first gap is used to accommodate water that enters the gas chamber through the damage point of the elastic airbag. The water can make the first electrode and the second electrode electrically connected, so as to judge whether the elastic airbag is damaged based on whether the first electrode and the second electrode are connected.

[0058] In addition, in the above embodiments, the pressure tank 2 is placed vertically as an example for description when in use. However, in some other embodiments, the pressure tank 2 can be placed horizontally for use according to the requirements of the application scenario.

[0059] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A pressure tank, characterized in that: include: A shell, an elastic airbag, a water inlet, a first fixing structure, and a second fixing structure, wherein the shell is made of a conductive material, the elastic airbag is suspended in the shell by the first fixing structure, and the elastic airbag is fixed above the water inlet by the second fixing structure, so that the remaining space in the shell except the elastic airbag is used as a gas chamber, and water is transported into or out of the elastic airbag based on a variable pressure difference between the gas chamber and the elastic airbag; The pressure tank is connected to the water pump through a water inlet channel, the water inlet channel is connected to the water inlet, and the water outlet channel is connected to the elastic airbag, so that when the water pump is working, water is input into the elastic airbag through the variable pressure difference, or when the pressure tank needs to supply water, the water stored in the elastic airbag is output through the water outlet channel through the variable pressure difference; Whether the elastic airbag is damaged is implemented based on an elastic airbag damage detection device, and the elastic airbag damage detection device includes a first electrode and a second electrode. The first electrode is the shell or a conductive structure arranged thereon, and the second electrode can form a first gap with the shell. The first gap is used to accommodate water that enters the gas chamber through the damage point of the elastic airbag. The water can make the first electrode and the second electrode electrically connected, so as to judge whether the elastic airbag is damaged based on whether the first electrode and the second electrode are connected.

2. The pressure tank according to claim 1, characterized in that: The first gap may be formed between the second electrode and the housing through the first fixing structure and / or the second fixing structure.

3. The pressure tank according to any one of claims 1 and 2, characterized in that: The second fixing structure includes a first flange and a second flange, the first flange and the second flange are fixed together, and the elastic airbag is clamped between the first flange and the second flange to fix the elastic airbag above the water inlet.

4. The pressure tank according to claim 3, characterized in that: in, The first gap is formed between the second electrode and the shell through the second flange.

5. The pressure tank according to claim 3, characterized in that: in, The second flange includes a flange having a conductive structure thereon. The conductive structure serves as the second electrode and can form the first gap with the shell.

6. The pressure tank according to claim 3, characterized in that: The first flange and the second flange are fixed together by a metal structural member, a through gap and a horizontal gap are formed between the metal structural member and the second flange, and an insulating structural member is arranged in the through gap and the horizontal gap, and the insulating structural member is used to prevent the first flange and the second flange from forming a short circuit so as to prevent the first electrode and the second electrode from being accidentally connected.

7. The pressure tank according to claim 6, characterized in that The insulating structural member comprises an insulating sleeve and an insulating gasket, wherein the insulating sleeve is sleeved on the periphery of the metal structural member to be accommodated in the through gap, and the insulating gasket is padded in the horizontal gap; or, The insulating structural member is a bolt-type isolation washer, and the bolt-type isolation washer is assembled with the metal structural member to close the through gap and the horizontal gap; or, The insulating structural member is a gasket, the material of the gasket is an insulating material, or the surface of the gasket is coated with an insulating coating, and the gasket closes the through gap and the horizontal gap.

8. The pressure tank according to any one of claims 6 and 7, characterized in that: Also includes: A shielding seal is disposed between the first flange and the second flange and located outside the through gap to shield the conductive liquid in the external environment from causing accidental connection between the first electrode and the second electrode.

9. The pressure tank according to claim 1, characterized in that: The elastic airbag damage detection device also includes: a detection circuit, a power supply and a switch module, the power supply is electrically connected to the switch module, and the switch module is electrically connected to 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 determine whether the elastic airbag is damaged.

10. An elastic airbag damage detection device, characterized in that: Applied to the pressure tank described in any one of claims 1 to 9, the elastic airbag damage detection device includes: whether the elastic airbag is damaged is implemented based on the elastic airbag damage detection device, the elastic airbag damage detection device includes a first electrode and a second electrode, the first electrode is the shell or a conductive structural member arranged thereon, the second electrode can form the first gap with the shell, the first gap is used to accommodate water entering the gas chamber through the damage point of the elastic airbag, and the water can make the first electrode and the second electrode electrically connected, so as to judge whether the elastic airbag is damaged based on whether the first electrode and the second electrode are connected.

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