Cage type ultraviolet disinfection module and regulation and storage device

Abstract

The utility model discloses a cage type ultraviolet disinfection module which comprises a module support, at least one ultraviolet lamp tube used for disinfecting a pressure-resistant structure is fixedly mounted on the module support, and the module support comprises at least one mounting structure in closed connection with a to-be-disinfected structure body; when the number of the ultraviolet lamp tubes is multiple, any two ultraviolet lamp tubes are installed in parallel. The disinfection module adopts a modularized ultraviolet lamp tube combination, different numbers of ultraviolet lamp tubes can be combined according to the water flow to form the disinfection modules with different disinfection intensities, and the disinfection modules with different intensities and models can be selected for different application scenes, so that the adaptability of the disinfection modules is greatly improved. According to the utility model, the regulation and storage pipe is adopted for disinfection, so that an overflowing pressure-bearing outer shell structure which needs to be manufactured in the conventional ultraviolet disinfection device is avoided, and the leakage problem of the outer shell of the disinfection device is fundamentally avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of water supply devices, in particular to the technical field of disinfection modules of water supply devices, and specifically to a cage-type ultraviolet disinfection module and a regulating and storage device. Background Art

[0002] The purpose of drinking water disinfection is to kill the vast majority of pathogenic microorganisms in water that are harmful to human health, including bacteria, viruses, and protozoa, to prevent the transmission of diseases through drinking water. Since disinfection cannot completely kill all microorganisms in water, disinfection is to minimize the risk of waterborne infectious diseases caused by drinking water to a completely acceptable level while meeting the microbiological standards for drinking water quality. Sterilization refers to the process of killing all microorganisms in water, while disinfection refers to the process of killing the vast majority of pathogenic microorganisms in water that are harmful to human health, preventing waterborne infectious diseases, and achieving relevant indicators of drinking water quality microbiology.

[0003] The contamination of drinking water generally comes from pathogenic microorganisms and harmful chemicals. The disinfection of drinking water only eliminates the contamination of pathogenic microorganisms. There are several ways to disinfect drinking water:

[0004] (1) Physical disinfection

[0005] Physical water disinfection can be achieved through heating, filtration, ultraviolet (UV) light, and radiation. Boiling is the most common method, being simple, reliable, and suitable for treating small amounts of water. Filtration is simple and effective, but it only removes bacteria, not sterilizes them. Commonly used methods include sand filtration, asbestos filter plates, and cellulose membrane filters. UV light in the 240-280 nm wavelength range has the strongest bactericidal power and is suitable for treating small amounts of water. Direct-flow and sleeve-type UV disinfectors are commonly used.

[0006] (2) Chemical disinfection

[0007] Refers to the use of chemical disinfectants to disinfect water. Commonly used drinking water disinfectants in China and abroad are still mainly halogens, especially chlorine disinfectants.

[0008] ① Chlorine-containing preparations: There are many types of chlorine-containing drinking water disinfectants, such as bleaching powder, calcium hypochlorite, chloramine, and sodium dichloroisocyanurate. Due to the varying quality of the source water, the amount of chlorine added should be determined based on a chlorine demand test. For water that has undergone coagulation, sedimentation, and filtration, or clean groundwater, the chlorine dosage should be 0.5-1.5 mg / L. For poorer water quality, add 1.0-2.5 mg / L (or 1-4 mg / L). To determine whether the amount of chlorine added is appropriate, consult your local Center for Disease Control and Prevention.

[0009] ② Chlorine dioxide: Chlorine dioxide is known as a fourth-generation disinfectant and is the safest chemical recommended by the WHO for drinking water treatment. It represents a significant upgrade to other disinfectants. It is more effective than chlorine in many areas, including disinfection, odor removal, and iron removal, and does not produce carcinogens like chloroform. Chlorine dioxide is minimally affected by water temperature when disinfecting water, and is even more effective than chlorine in sterilizing low-quality water.

[0010] With regard to physical disinfection, this application improves the ultraviolet disinfection method and disinfection device in the prior art, aiming to provide an ultraviolet disinfection module with a longer action time and easier replacement and maintenance to replace the existing tap water disinfection device. Utility Model Content

[0011] Most existing ultraviolet disinfection devices are connected in parallel with the water outlet pipe, and the water outlet pipe is shut off by a valve to divert the tap water through the disinfection device, thereby utilizing the ultraviolet lamp built into the disinfection device for disinfection. In order to solve the problem that the existing ultraviolet disinfection device is installed in the water outlet well, the water flow velocity is high, the disinfection time is short, resulting in an unsatisfactory disinfection effect, and the water pressure in the water outlet well is high, and the pressure resistance of the ultraviolet lamp and the disinfection device shell is high, resulting in high cost of the special ultraviolet disinfection device. The present utility model redesigns the disinfection module, aiming to replace the existing ultraviolet disinfection device. The present application provides a cage-type ultraviolet disinfection module and a regulating and storage device, which have at least one of the following technical effects compared to the existing ultraviolet disinfection device installed in the water outlet well:

[0012] 1. The disinfection module adopts a modular ultraviolet lamp combination. It can combine different numbers of ultraviolet lamps according to the size of the water flow to form disinfection modules with different disinfection intensities. Different application scenarios can choose disinfection modules of different intensities, which greatly improves the adaptability of the disinfection module.

[0013] 2. The utility model adopts a storage pipe for disinfection, eliminating the need for a pressure-bearing outer shell structure in existing ultraviolet disinfection devices, and fundamentally avoiding the problem of leakage of the outer shell of the disinfection device; at the same time, the use of storage pipe disinfection has the following advantages over water well disinfection:

[0014] First, the pressure is lower. The inside of the regulating and storage tube is connected to the atmospheric pressure, and there will be no pressurization. The pressure is much lower than the pressure of the water well pipeline, which makes the ultraviolet lamp extremely low in pressure, and the optional ultraviolet lamp products are more extensive and the cost is lower. Second, the water flow inside the regulating and storage tube is slower than the water supply flow rate of the water well. When there is no water supply, the water inside the regulating and storage tube is not flowing. Ultraviolet rays can disinfect the water for a long time, and the disinfection effect is greatly enhanced.

[0015] 3. Later maintenance is more convenient. The disinfection module is installed in the regulating and storage pipe, which can be replaced at any time. Due to the advantages and characteristics of the regulating and storage pipe's large size, it is not restricted by space and can be repaired or replaced at any time for a single set of disinfection modules. There is no need to stop the water supply during the replacement, which does not affect normal water use. Existing water outlet disinfection devices must stop the water supply during maintenance or replacement. At the same time, because the disinfection device has a pressure-bearing shell and the space is limited by the water outlet well, if you want to replace it, you must first stop the water supply and use professional tools to lift and replace it, which is more troublesome.

[0016] In order to achieve the above objectives, the technical solutions adopted in this application are:

[0017] A cage-type ultraviolet disinfection module includes a module bracket, on which is fixedly mounted at least one ultraviolet lamp tube for disinfecting a pressure-resistant structure. The module bracket includes at least one mounting structure that is airtightly connected to a structure to be disinfected. When there are multiple ultraviolet lamp tubes, any two ultraviolet lamp tubes are installed in parallel.

[0018] Preferably, the module bracket includes a step pull rod passing through the module bracket, both ends of the step pull rod are detachably fixedly connected to the mounting structure, and a plurality of pressure-resistant ultraviolet lamp tubes are installed between two mounting structures.

[0019] Preferably, both ends of the step pull rod have a step shaft that matches the mounting structure and passes through the mounting structure, and a threaded section for matching with a locking nut is provided near the end surface of the step shaft.

[0020] Preferably, the mounting structure is a flange with holes or a plate-like structure with external threads, and a plurality of ultraviolet lamp tubes with pressure-resistant structures are distributed on the mounting structure in a circular array.

[0021] Preferably, the pressure-resistant structure is a pressure-bearing quartz tube sleeved outside the ultraviolet lamp tube, and the outer side wall of the pressure-bearing quartz tube is tightly connected to the module bracket.

[0022] Preferably, the quartz tube includes a first end for extending into the body of the structure to be sterilized and a second end exposed outside the body of the structure to be sterilized for installing the ultraviolet lamp tube in the quartz tube. The first end of the quartz tube is fixed to one end of the module bracket through a lower nut, and the second end of the quartz tube is fixed to the other end of the module bracket through an upper sealing nut. A sealing ring is sleeved on the outer circumferential side wall of the quartz tube. The upper sealing nut is threadedly connected to the module bracket and fixes the sealing ring between the quartz tube and the module bracket to form a closed structure.

[0023] As the most commonly used scenario of the present invention, preferably, the structure to be disinfected is a regulating and storing pipe.

[0024] The utility model also provides a regulating and storing device, comprising a regulating and storing pipe for storing water, wherein the regulating and storing pipe is provided with at least one sealable flange, and the sealable flange is sealedly connected to the mounting structure to install the cage-type ultraviolet disinfection module inside the regulating and storing pipe.

[0025] The utility model also provides another regulating and storing device, wherein at least one of a water supply flange, a pump flange or an inspection flange is provided on the regulating and storing pipe, and a cage-type ultraviolet disinfection module for disinfecting the regulating and storing pipe is sealed and installed on the water supply flange, the pump flange or the inspection flange.

[0026] Preferably, the regulating and storing pipe is provided with a water inlet pipe and a drain pipe, and at least one set of water supply pump group and liquid level sensor are arranged inside the regulating and storing pipe.

[0027] Beneficial effects:

[0028] 1. The disinfection module adopts a modular ultraviolet lamp combination. It can combine different numbers of ultraviolet lamps according to the size of the water flow to form disinfection modules with different disinfection intensities. Different application scenarios can choose disinfection modules of different intensities, which greatly improves the adaptability of the disinfection module.

[0029] 2. The utility model adopts a regulating storage tube for disinfection, which eliminates the need for the existing ultraviolet disinfection device to make a pressure-bearing outer shell structure, and fundamentally avoids the problem of leakage of the outer shell of the disinfection device; at the same time, the use of disinfection in the regulating storage tube has the following advantages compared to disinfection in the water well: first, the pressure is lower, the inside of the regulating storage tube is connected to the atmospheric pressure, there is no pressurization, and the pressure is much lower than the pressure of the water well pipeline, so that the ultraviolet lamp tube has extremely low pressure, and the optional ultraviolet lamp tube products are more extensive and the cost is lower; second, the water flow inside the regulating storage tube is slower than the water supply flow rate of the water well. When there is no water supply, the water inside the regulating storage tube is not flowing, and the ultraviolet rays can disinfect the water for a long time, and the disinfection effect is greatly enhanced.

[0030] 3. Later operation and maintenance are more convenient. The disinfection module installed in the regulating and storage pipe can be replaced at any time. Due to the advantages and characteristics of the regulating and storage pipe with large volume, it is not restricted by space and can be repaired or replaced for a single group of disinfection modules at any time. There is no need to stop the water supply during the replacement, which does not affect the normal use of water. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] 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.

[0032] Figure 1 It is a top view of an embodiment of a cage-type ultraviolet disinfection module provided by the present utility model.

[0033] Figure 2 yes Figure 1 Schematic diagram of the cross-sectional structure with the center-edge cutting symbol AA.

[0034] Figure 3 yes Figure 1 Bottom view of

[0035] Figure 4 yes Figure 1 Rotated section view of .

[0036] Figure 5 yes Figure 1 Structural axonometric drawing.

[0037] Figure 6 It is a schematic diagram of the internal installation structure of an embodiment of the utility model installed in a regulating and storing device.

[0038] Figure 7 It is a partial top view schematic diagram of the utility model installed on the flange of the regulating and storage device.

[0039] Figure 8 yes Figure 7 A longitudinal partial cross-sectional view of .

[0040] In the figure: 0-cage type UV disinfection module; 1-UV lamp tube; 2-upper sealing nut; 3-connector; 4-flange; 5-flange with hole; 6-lower nut; 7-sealing ring; 8-quartz tube; 9-step pull rod; 10-threaded section; 11-locking nut; 12-regulating and storing pipe; 13-water supply pump group; 14-water inlet pipe; 15-liquid level sensor; 16-drain pipe. DETAILED DESCRIPTION

[0041] 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.

[0042] 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.

[0043] 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.

[0044] 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.

[0045] 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.

[0046] 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.

[0047] Example 1:

[0048] See the instructions attached Figure 1-Figure 5 As shown, this embodiment provides a cage-type ultraviolet disinfection module, including a module bracket, on which is fixedly mounted at least one ultraviolet lamp tube 1 for disinfecting with a pressure-resistant structure, and the module bracket includes at least one mounting structure that is airtightly connected to the structure body to be disinfected; when there are multiple ultraviolet lamp tubes 1, any two ultraviolet lamp tubes 1 are installed in parallel.

[0049] Explanation of structure and working principle:

[0050] The module bracket is a supporting structure for the entire disinfection module. Its main function is to install the ultraviolet lamp 1. It can be one or multiple depending on different needs. When using the disinfection module provided by this embodiment, the installation structure is sealed with the structure to be disinfected, and the ultraviolet light emitted by the ultraviolet lamp 1 is used to sterilize the disinfected object. The most common structures to be disinfected are usually devices with extremely slow water flow, such as regulating pipes, regulating tanks, or transfer water tanks. Since there is no pressure inside them, commercially available ultraviolet lamps with lower pressure resistance can be selected to meet the requirements, which makes the manufacturing cost of the disinfection module provided by this embodiment lower. In terms of later maintenance, since it is detachable and installed in a low-pressure or no-pressure structure area, it can be flexibly replaced, and the normal water supply will not be affected during the maintenance and replacement process. When disinfecting large-flow water bodies, multiple ultraviolet lamps 1 can be arranged in an array to form cage-type ultraviolet disinfection modules 0 with different structures, thereby meeting different disinfection needs and application scenarios.

[0051] Example 2:

[0052] This embodiment is further optimized on the basis of the structure of embodiment 1. In order to more reasonably install more ultraviolet lamps 1 and take into account the convenience of later operation and maintenance, in this embodiment, the module bracket includes a step pull rod 9 that passes through the module bracket. The two ends of the step pull rod 9 are detachably fixedly connected to the mounting structure. A plurality of pressure-resistant ultraviolet lamps 1 are installed between the two mounting structures. See the attached manual for details. Figure 5 As shown, a UV lamp 1 is installed in a circular array around the step rod 9 with the center of the installation structure as the center of the circle. Of course, this is just one installation method. Depending on the needs of the actual application scenario, a radial array or a rectangular array can also be used for arrangement and installation. As long as multiple UV lamps 1 form a cage-like structure, it is convenient to install and replace them.

[0053] In this embodiment, in order to better install and fix the ultraviolet lamp 1, the two ends of the step rod 9 have a step shaft that matches the installation structure and passes through the installation structure, and the position of the step shaft near the end surface is provided with a threaded section 10 for matching with the locking nut 11. Figure 1-Figure 5 It shows a method of fixing two mounting structures together by a step rod 9 and fixing multiple ultraviolet lamps 1 installed between the two mounting structures. The locking nuts 11 at both ends of the step rod 9 can adjust the fixing pre-tightening force.

[0054] This embodiment provides an optional structural mode of the mounting structure, specifically, the mounting structure is a flange 5 with holes or a plate-like structure with external threads, and multiple ultraviolet lamps 1 with pressure-resistant structures are distributed on the mounting structure in a circumferential array. Figure 5 As shown, existing bolts and structures such as the regulating pipe 12 can be used for fixing or fixedly sealing the connection; a plate-like structure with an external thread can be used to achieve a connection without a connector. Of course, this embodiment only lists the preferred structural methods, and does not limit the installation structure to only the above two types.

[0055] In order to better protect the ultraviolet lamp 1, in this embodiment, the pressure-resistant structure is a pressure-bearing quartz tube 8 sleeved outside the ultraviolet lamp 1, and the outer wall of the pressure-bearing quartz tube 8 is tightly connected to the module bracket.

[0056] In this embodiment, see the attached Figure 2 、 Figure 4-Figure 5 As shown, the quartz tube 8 includes a first end for extending into the structure to be sterilized and a second end exposed outside the structure to be sterilized for installing the ultraviolet lamp 1 in the quartz tube 8. The first end of the quartz tube 8 is fixed to one end of the module bracket by a lower nut 6, and the second end of the quartz tube 8 is fixed to the other end of the module bracket by an upper sealing nut 2. A sealing ring 7 is sleeved on the outer circumferential side wall of the quartz tube 8. The upper sealing nut 2 is threadedly connected to the module bracket and fixes the sealing ring 7 between the quartz tube 8 and the module bracket to form a closed structure. During installation, it is only necessary to deeply insert the first end into the regulating and storing tube 12, and then fix the module bracket to the regulating and storing tube 12. By energizing the ultraviolet lamp 1, the water in the regulating and storing pipe 12 can be disinfected and sterilized. Since the inner diameter of the regulating and storing pipe 12 is much larger than the inner diameter of the water supply pipe, the water flow rate in the regulating and storing pipe 12 is very slow even during the water supply process, which makes the duration of the sterilization effect of ultraviolet light on water longer than that in the water supply pipe. Therefore, the disinfection and sterilization effect increases with the increase of the action time.

[0057] Example 3:

[0058] The present invention also provides a water storage device, including a water storage pipe 12 for storing water. The water storage pipe 12 is provided with at least one sealable flange. The sealable flange is sealed with a mounting structure to install the cage-type ultraviolet disinfection module 0 inside the water storage pipe 12. In this embodiment, the water storage pipe 12 is provided with a water inlet pipe 14 and a drain pipe 16, as well as at least one water supply pump group 13 and a liquid level sensor 15 arranged inside the water storage pipe 12. Figure 6As shown, three groups of cage-type UV disinfection modules 0 are provided in the regulating and storage pipe 12. Since the existing regulating and storage pipes 12 all adopt a non-negative pressure regulating and storage pipe structure, the water level will not be full under the action of the liquid level sensor 15. Therefore, this embodiment can repair and replace the disinfection module under normal water supply conditions. Moreover, due to the convenient disassembly and assembly, it generally only requires one person to complete it, eliminating the inconvenience and tediousness of the existing water outlet well UV disinfection device, which requires multiple people to coordinate the lifting and the need to cut off the water supply before it can be carried out. In comparison, the convenience of later operation and maintenance is greatly improved.

[0059] Example 4:

[0060] This embodiment also provides another storage device, see the attached manual. Figure 7 and Figure 8 As shown, the regulating storage pipe 12 is provided with at least one of a water supply flange, a pump flange or an inspection flange, and the water supply flange, the pump flange or the inspection flange is sealed with a cage-type ultraviolet disinfection module 0 for disinfecting the regulating storage pipe 12. In this embodiment, the cage-type ultraviolet disinfection module 0 is installed on the water supply flange or the detection flange or the pump group mounting flange of the regulating storage device. This arrangement is compatible with the upgrade and improvement of the existing in-service regulating storage pipe. For details, see the attached specification. Figure 8 As shown, this structural form is suitable for the transformation of old regulating storage tanks and can meet the installation requirements of the cage-type ultraviolet disinfection module 0 without adjusting the existing regulating storage pipe structure.

[0061] 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 cage-type ultraviolet disinfection module, characterized in that: The invention comprises a module bracket, on which at least one ultraviolet lamp (1) with a pressure-resistant structure for disinfection is fixedly mounted, and the module bracket comprises at least one mounting structure for achieving a sealed connection with a structure body to be disinfected; when there are multiple ultraviolet lamps (1), any two ultraviolet lamps (1) are mounted in parallel; the module bracket comprises a step pull rod (9) passing through the module bracket, and both ends of the step pull rod (9) are detachably fixedly connected to the mounting structure, and multiple pressure-resistant ultraviolet lamps (1) are mounted between the two mounting structures.

2. A cage-type ultraviolet disinfection module according to claim 1, characterized in that: Both ends of the step pull rod (9) have step shafts that match the mounting structure and pass through the mounting structure, and a threaded section (10) for matching with a locking nut (11) is provided near the end surface of the step shaft.

3. A cage-type ultraviolet disinfection module according to claim 1, characterized in that: The mounting structure is a flange (5) with holes or a plate-like structure with external threads, and a plurality of ultraviolet lamp tubes (1) with pressure-resistant structures are distributed on the mounting structure in a circumferential array.

4. A cage-type ultraviolet disinfection module according to any one of claims 1 to 3, characterized in that: The pressure-resistant structure is a pressure-bearing quartz tube (8) sleeved outside the ultraviolet lamp (1), and the outer side wall of the pressure-bearing quartz tube (8) is tightly connected to the module bracket.

5. A cage-type ultraviolet disinfection module according to claim 4, characterized in that: The quartz tube (8) comprises a first end for extending into the body of the structure to be sterilized and a second end exposed outside the body of the structure to be sterilized for installing the ultraviolet lamp (1) in the quartz tube (8). The first end of the quartz tube (8) is fixed to one end of the module bracket through a lower nut (6), and the second end of the quartz tube (8) is fixed to the other end of the module bracket through an upper sealing nut (2). A sealing ring (7) is sleeved on the outer circumferential side wall of the quartz tube (8). The upper sealing nut (2) is threadedly connected to the module bracket and fixes the sealing ring (7) between the quartz tube (8) and the module bracket to form a closed structure.

6. A cage-type ultraviolet disinfection module according to claim 1, characterized in that: The structure to be disinfected is a storage tube (12).

7. A water storage device comprising a water storage pipe (12) for storing water, characterized in that: At least one sealable flange is provided on the regulating and storing pipe (12), and the sealable flange is sealedly connected to the mounting structure to mount the cage-type ultraviolet disinfection module (0) according to any one of claims 1 to 6 inside the regulating and storing pipe (12).

8. A storage device according to claim 7, characterized in that: The regulating and storing pipe (12) is provided with a water inlet pipe (14) and a water discharge pipe (16), as well as at least one water supply pump group (13) and a liquid level sensor (15) arranged inside the regulating and storing pipe (12).

9. A water storage device comprising a water storage pipe (12) for storing water, characterized in that: The regulating and storing pipe (12) is provided with at least one of a water supply flange, a pump flange or an inspection flange, and the cage-type ultraviolet disinfection module (0) for disinfecting the inside of the regulating and storing pipe (12) according to any one of claims 1 to 6 is sealed and installed on the water supply flange, the pump flange or the inspection flange.

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