Pressure tank with self-cleaning dead water prevention

Abstract

The application provides a self-cleaning dead water prevention type pressure tank, which comprises an inlet arranged on the pressure tank, a communicating pipe connected with the inlet, an air bag arranged in the pressure tank and dividing the pressure tank into an air chamber and a water chamber, an outlet end of the communicating pipe away from the inlet extending into the water chamber, a nozzle assembly arranged on the outlet end of the communicating pipe in the water chamber, and an interface arranged on the outlet end of the water chamber. The double-interface design is adopted, the communicating pipe connected with the nozzle assembly is additionally arranged, and the interface is additionally arranged on the outlet end of the water chamber, so that the circulation of water flow is ensured, the self-cleaning effect is achieved, and the dead water of the pressure tank is prevented.

Description

Technical Field

[0001] This utility model belongs to the field of pressure tank technology, and specifically relates to a self-cleaning pressure tank that prevents water from freezing. Background Technology

[0002] The pressure tank includes a cylinder, end caps, air bladder, inflation / deflation device, inlet / outlet ports, and pressure monitoring components, all made of carbon steel or stainless steel. In use, the compressibility of the air inside the tank is used to regulate and store water volume and maintain the required pressure.

[0003] Traditional pressure tanks employ a static water storage mode, with the inlet and outlet sharing the same interface. This results in a lack of directional water flow within the tank. When system pressure fluctuations are less than 0.05 MPa, the water at the top becomes laminar due to the lack of forced convection, with a flow velocity below 0.02 m / s. Furthermore, at this point, the particle settling velocity (e.g., 0.002 m / s for 10 μm particles) far exceeds the water mixing capacity, leading to continuous deposition of suspended solids and the formation of stagnant water zones. To avoid these stagnant water zones, some manufacturers employ the addition of Flow-Thru... TM Dynamic circulation system. However, it requires a matching frequency converter control system and has high energy consumption, making it unsuitable for promotion and use in small and medium-sized enterprises.

[0004] Therefore, how to solve the defects in the existing technology has become one of the urgent problems to be solved in the field of pressure tank technology. Utility Model Content

[0005] In view of the problems existing in the background art, the present invention provides a self-cleaning, anti-stagnant water pressure tank, comprising,

[0006] An inlet is provided on the pressure vessel;

[0007] A connecting pipe is connected to the inlet;

[0008] An airbag is installed inside the pressure tank.

[0009] It is further divided into air chambers and water chambers by an air bladder;

[0010] The outlet end of the connecting pipe, located away from the inlet, extends into the water chamber.

[0011] Furthermore, a nozzle assembly is provided at the outlet end of the connecting pipe located within the water chamber;

[0012] The outlet end of the water chamber is provided with an interface.

[0013] Optionally, the nozzle assembly includes a housing and a nozzle core disposed within the housing.

[0014] The outer casing is provided with a mounting bracket.

[0015] The mounting bracket is provided with an inclined end face.

[0016] It is in close contact with the outer wall of the constricted end of the nozzle core.

[0017] Optionally, a filter screen is provided inside the nozzle core.

[0018] The filter screen is mounted on the mounting bracket away from the constricted end.

[0019] Optionally, a straight tube end is provided inside the nozzle core away from the filter screen.

[0020] Furthermore, the outlet end of the straight pipe is connected to the expansion ends that bulge outwards at both ends;

[0021] A connector is provided at the outlet end of the straight pipe.

[0022] Furthermore, the connector has multiple sets of fan blades evenly distributed along its circumference.

[0023] Optionally, the expansion end near the straight pipe end is arranged in a lantern shape.

[0024] The diameter of the expansion end outlet, farther away from the straight pipe end, continuously decreases.

[0025] The outlet end of the expansion end is connected to the nozzle.

[0026] Optionally, the nozzle includes multiple sets of jet nozzles disposed on its body.

[0027] Furthermore, the jet nozzle adopts an arc-shaped design.

[0028] Furthermore, the outer wall of the nozzle near the jet nozzle position has an arc-shaped end.

[0029] The arc-shaped end and the jet nozzle are designed with a concave surface to form a recessed end.

[0030] In summary, the beneficial effects of this utility model are:

[0031] (1) This utility model adopts a dual-interface design. By adding a connecting pipe connected to the nozzle assembly and adding an interface at the outlet end of the water chamber, the circulation of water flow is ensured, which plays a self-cleaning role and prevents the pressure tank from producing stagnant water.

[0032] (2) This utility model can effectively increase the flow rate of fluid by using a trapezoidal constriction end. When the fluid enters the nozzle core, the flow rate is increased by the constriction end, allowing it to flow into the filter screen at high speed to avoid blockage of debris at the filter screen inlet. The filter screen intercepts more than 90% of particles with a diameter of 10μm, thereby effectively reducing the entry of particles into the bottom of the pressure tank and reducing the probability of the formation of dead water areas.

[0033] (3) This utility model transforms axial flow into spiral flow by uniformly distributing the fan blades at the expansion end. The tangential velocity component increases the particle suspension capacity, making the settling rate of particles smaller than 10μm (0.002m / s) lower than the water mixing rate. The expansion end is lantern-shaped, which can generate a jet effect by reducing the diameter at the end of the expansion end, impacting the tank wall to form a secondary circulation, thereby effectively reducing the generation of dead water areas. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the self-cleaning, anti-dehydration pressure tank of this utility model;

[0035] Figure 2 This is an enlarged view of the structure at position A of an embodiment of a self-cleaning, anti-dehydration pressure tank of this utility model;

[0036] Figure 3 This utility model Figure 2 Enlarged view of the middle section structure;

[0037] Figure 4 This is an enlarged view of the nozzle structure of an embodiment of a self-cleaning, anti-stagnant water pressure tank according to the present invention.

[0038] Figure label:

[0039] 100. Pressure tank;

[0040] 10. Import; 101. Connecting pipe;

[0041] 20. Inflation nozzle;

[0042] 40. Pressure monitoring sensor;

[0043] 60. Interface;

[0044] 70. Air chamber;

[0045] 80. Water chamber;

[0046] 901. Nozzle inner core; 902. Converging end; 903. Mounting bracket; 904. Filter screen; 907. Outer shell;

[0047] 9081, Straight pipe end; 9082, Expanding end; 9083, Connector; 9084, Fan blade;

[0048] 909, Nozzle; 9091, Recessed end; 9092, Arc-shaped end; 9093, Jet nozzle. Detailed Implementation

[0049] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. Although exemplary embodiments are disclosed in the drawings, it should be understood that the present utility model can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to facilitate a more thorough understanding of the present utility model and to fully convey the concept of the present utility model to those skilled in the art.

[0050] In the description of this specification, the references to terms such as "certain embodiments," "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0051] In this utility model, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; the term "multiple" refers to two or more unless otherwise explicitly defined. The terms "install," "connect," "join," and "fix" should be interpreted broadly. For example, "connect" can be a fixed connection, a detachable connection, or an integral connection; "join" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0052] like Figure 1-4As shown, this embodiment provides a self-cleaning, anti-dead-water pressure tank 100, including an inlet 10 disposed on the pressure tank 100, a connecting pipe 101 connected to the inlet 10, an air bladder disposed inside the pressure tank 100, which divides the tank into an air chamber 70 and a water chamber 80, and an inflation nozzle 20 with an air nozzle protective cover disposed on the pressure tank 100, which is connected to an external air supply device to provide gas to the air chamber;

[0053] The outlet end of the connecting pipe 101, which is away from the inlet 10, extends into the water chamber 70, and a nozzle assembly is provided at the outlet end of the connecting pipe 101 located in the water chamber 70.

[0054] The outlet end of the water chamber 70 is provided with an interface 60, through which a circulation pipe group is connected, and a drain valve is provided on the pipe of the interface 60.

[0055] This utility model adopts a dual-interface design. By adding a connecting pipe that is connected to the nozzle assembly and adding an interface at the outlet end of the water chamber, the circulation of water flow is ensured, which plays a self-cleaning role and prevents stagnant water from forming in the pressure tank.

[0056] Furthermore, the nozzle assembly includes a housing 907 and a nozzle core 901 disposed within the housing 907. A mounting bracket 903 is installed inside the housing 901 by welding. The mounting bracket 903 is provided with an inclined end face and is in close contact with the outer wall of the constricted end 902 of the nozzle core 901.

[0057] Furthermore, a filter screen 904 is provided inside the nozzle core 901, and the filter screen 904 is mounted on the mounting bracket 903 away from the constriction end 902 by fastening screws.

[0058] In this embodiment, the trapezoidal constriction end can effectively increase the flow rate of the fluid. When the fluid enters the nozzle core, the constriction end increases the flow rate, allowing it to flow into the filter screen at high speed, thus preventing debris from clogging the filter screen inlet. The filter screen also intercepts more than 90% of particles with a diameter of 10μm.

[0059] Furthermore, a straight tube end 9081 is provided in the nozzle core 901 away from the filter screen 904, and the outlet end of the straight tube end 9081 is connected to the expansion end 9082 that protrudes outward at both ends.

[0060] Furthermore, a connector 9083 is installed on the inner connecting plate located at the outlet end of the straight pipe 9081 by fastening screws, and multiple sets of fan blades 9084 are evenly distributed along the circumference of the connector 9083.

[0061] In this embodiment, the gradient structure of the straight pipe end 9081 and the expansion end 9082 forms a Venturi effect, which can increase the fluid velocity by 20%-30%. Furthermore, by using fan blades in conjunction with the circumferential distribution of the fan blades, it is possible to generate axial swirling flow, thereby further increasing the flow velocity.

[0062] Furthermore, the expansion end near the straight pipe end is lantern-shaped, and the outlet diameter of the expansion end away from the straight pipe end is much smaller than the inlet diameter, and the outlet diameter of the expansion end away from the straight pipe end continuously decreases.

[0063] Furthermore, the outlet end of the expansion end is connected to the nozzle 909.

[0064] In this embodiment, the axial flow is transformed into a spiral flow by the circumferentially uniform distribution of the fan blades 9084 (usually 6-12 blades). The tangential velocity component increases the particle suspension capacity, making the settling rate of particles smaller than 10μm (0.002m / s) lower than the water mixing velocity. The expansion end is arranged in a lantern shape, which can generate a jet effect by reducing the diameter at the end of the expansion end, impacting the tank wall to form a secondary circulation, thereby effectively reducing the generation of dead water areas.

[0065] Furthermore, the nozzle 909 includes multiple sets of jet nozzles 9093 disposed on its body, and the jet nozzles 9093 adopt an arc-shaped design, and the outer wall of the nozzle 909 near the position of the jet nozzles 9093 has an arc-shaped end 9092, so that the arc-shaped end 9092 and the jet nozzles 9093 are concave, forming a recessed end 9091.

[0066] In practical applications, when fluid is ejected through the jet nozzle 9093 of the nozzle 909, the fluid can diffuse as it is ejected, and the coverage area is 1.5 times larger than that of the direct injection structure.

[0067] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not restrictive. Although this utility model has been described in detail with reference to the embodiments, those skilled in the art should understand that modifications or equivalent substitutions to the technical solution of this utility model do not depart from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A pressure tank with self-cleaning and anti-stagnant water properties, characterized in that, include, An inlet is provided on the pressure vessel; A connecting pipe is connected to the inlet; An airbag is installed inside the pressure tank. It is further divided into air chambers and water chambers by an air bladder; The outlet end of the connecting pipe, located away from the inlet, extends into the water chamber. Furthermore, a nozzle assembly is provided at the outlet end of the connecting pipe located within the water chamber; The outlet end of the water chamber is provided with an interface.

2. A pressure tank with self-cleaning and anti-stagnant water properties according to claim 1, characterized in that, The nozzle assembly includes a housing and a nozzle core disposed within the housing. The outer casing is provided with a mounting bracket. The mounting bracket is provided with an inclined end face. It is in close contact with the outer wall of the constricted end of the nozzle core.

3. A pressure tank with self-cleaning and anti-stagnant water properties according to claim 2, characterized in that, A filter screen is installed inside the nozzle core. The filter screen is mounted on the mounting bracket away from the constricted end.

4. A pressure tank with self-cleaning and anti-stagnant water properties according to claim 3, characterized in that, A straight tube end is provided inside the nozzle core, away from the filter screen. Furthermore, the outlet end of the straight pipe is connected to the expansion ends that bulge outwards at both ends; A connector is provided at the outlet end of the straight pipe. Furthermore, the connector has multiple sets of fan blades evenly distributed along its circumference.

5. A pressure tank with self-cleaning and anti-stagnant water properties according to claim 4, characterized in that, The expansion end near the straight pipe end is arranged in a lantern shape. The diameter of the expansion end outlet, farther away from the straight pipe end, continuously decreases. The outlet end of the expansion end is connected to the nozzle.

6. A pressure tank with self-cleaning and anti-stagnant water properties according to claim 5, characterized in that, The nozzle includes multiple sets of jet nozzles disposed on its body. Furthermore, the jet nozzle adopts an arc-shaped design. Furthermore, the outer wall of the nozzle near the jet nozzle position has an arc-shaped end. The arc-shaped end and the jet nozzle are designed with a concave surface to form a recessed end.

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