CN215411411U

CN215411411U - Pressure tank

Info

Publication number: CN215411411U
Application number: CN202121852935.4U
Authority: CN
Inventors: 李树权
Original assignee: Huagong Jiangmen Electromechanical Co ltd
Current assignee: Huagong Jiangmen Electromechanical Co ltd
Priority date: 2021-08-10
Filing date: 2021-08-10
Publication date: 2022-01-04
Anticipated expiration: 2031-08-10

Abstract

The utility model provides a pressure tank which comprises a tank body, wherein the tank top of the tank body is provided with a water inlet, and the tank bottom of the tank body is provided with a water outlet; the tank also comprises a bracket fixed on the inner wall of the tank body and an inflatable air bag limited on the bracket; the outer wall of the inflatable air bag and the inner side wall of the tank body enclose to form a fluid pipeline. The pressure tank of the utility model prevents the fluid flowing into the inner cavity of the tank body through the water inlet by the inflatable air bag, so that the fluid generates the first speed reduction and flows into the fluid pipeline formed by the inflatable air bag and the inner side wall of the tank body, the direction of the changed fluid is not completely the same, turbulence is easy to generate, and the shearing resistance is generated when part of the fluid flows through the inner side wall of the tank body and the outer wall of the inflatable air bag, thereby reducing the flow velocity of the fluid.

Description

Pressure tank

Technical Field

The utility model relates to the field of buffering devices, in particular to a pressure tank.

Background

The pressure tank is used in the closed water circulation system, plays a role in balancing water quantity and pressure, and avoids frequent opening of a safety valve and frequent water replenishing of an automatic water replenishing valve. The pressure tank has the functions of containing the expansion water and supplementing the water tank, the pressure tank is filled with air, a large volume can be obtained to contain the expansion water, and the high-pressure tank and the low-pressure tank can utilize the pressure per se to supplement water to the pressure stabilizing system in parallel.

The existing air bag type pressure tank is air-water separated, water is in the rubber bag, and the gap between the outside and the tank body is pre-filled with air. For example, application No. 201922379805.2 discloses a pressure tank, wherein a diaphragm is arranged in an inner cavity of a tank body, the diaphragm, the top and the bottom of the tank body enclose a composite liquid pipeline, water directly enters the liquid pipeline after entering from one through hole and then flows out from the other through hole, the air bag type pressure tank is suitable for an environment with suddenly increased flow in a short period, under the conditions of small fluid flow and high flow speed, high-speed fluid directly flows through the liquid pipeline and then flows out from the other through hole, the high-speed axial flow fluid causes great impact on subsequent equipment such as a valve and the like, and the subsequent equipment is eroded and damaged in the past, so that normal use is affected. Therefore, there is a need for a pressure tank that buffers a fluid having a small flow rate and a high flow velocity.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the traditional technology and provide the pressure tank for buffering the fluid with small flow and high flow speed.

The aim of the utility model is achieved by the following technical measures: a pressure tank comprises a tank body, wherein the tank top of the tank body is provided with a water inlet, and the tank bottom of the tank body is provided with a water outlet; the tank also comprises a bracket fixed on the inner wall of the tank body and an inflatable air bag limited on the bracket; the outer wall of the inflatable air bag and the inner side wall of the tank body enclose to form a fluid pipeline.

In one embodiment of the utility model, the inflatable air bag further comprises a fence fixed on the support, the fence and the support are enclosed into a cage-shaped structure, and the inflatable air bag is positioned in the cage-shaped structure.

In one embodiment of the utility model, the inflatable air bag is located in the middle of the inner cavity of the tank body.

Further, the inner cavity of the tank body is cylindrical, the inflatable air bag is cylindrical, and the axis of the inflatable air bag is collinear with the axis of the inner cavity of the tank body.

Furthermore, the bottom surface and the side surface of the inflatable air bag are in fillet transition.

In one embodiment of the utility model, a groove is formed at one end of the inflatable air bag close to the water inlet, and the groove is communicated with the water inlet.

Furthermore, the groove bottom of the groove is arc-shaped.

In one embodiment of the utility model, the water inlet is arranged at the center of the top of the tank body, and the water outlet is arranged at the center of the bottom of the tank body.

In one embodiment of the present invention, there are two brackets, and the two brackets fix the front and rear ends of the inflatable airbag, respectively.

Compared with the pressure tank structure in the prior art, the pressure tank provided by the utility model has the advantages that the inflatable air bag blocks the fluid flowing into the inner cavity of the tank body through the water inlet, so that the fluid is subjected to first speed reduction and flows into the fluid pipeline formed by the inflatable air bag and the inner side wall of the tank body, the flow direction of the changed fluid is not identical, turbulence is easy to occur, and a part of fluid generates shearing resistance when flowing through the inner side wall of the tank body and the outer wall of the inflatable air bag, so that the flow speed of the fluid is reduced.

Drawings

FIG. 1 is a schematic view of the pressure tank structure of example 1.

Fig. 2 is a sectional view of the pressure tank of embodiment 1.

FIG. 3 is a schematic view of the pressure tank structure of embodiment 2.

Fig. 4 is a sectional view of the pressure tank of embodiment 2.

Wherein: 10. a tank body; 101. a water inlet; 102. a water outlet; 20. a support; 201. a through hole; 30. An inflatable air bag; 301. a groove; 40. and (4) a fence.

Detailed Description

Reference will now be made in detail to the present embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the utility model. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The "front end" and "rear end" of the inflatable bladder 30 are defined in the order of flow of the fluid in the pressure tank.

The present invention "an inflatable balloon 30 constrained to a stent 20" means that the movement of the inflatable balloon is constrained by the stent 20, e.g., blocked by the stent 20, secured directly to the stent 20, etc.

Example 1

As shown in fig. 1 and 2, the top of the can body 10 is omitted from fig. 1. The pressure tank comprises a tank body 10, wherein a water inlet 101 is formed in the top of the tank body 10, and a water outlet 102 is formed in the bottom of the tank body 10; the inflatable air bag type air-conditioning tank further comprises a bracket 20 fixed on the inner wall of the tank body 10 and an inflatable air bag 30 limited on the bracket 20; the outer wall of the inflatable air bag 30 and the inner side wall of the tank body 10 enclose a fluid pipeline; the holder 20 is provided with a through hole 201 through which fluid passes. The inflatable air bag device further comprises a fence 40 fixed on the support 20, wherein the fence 40 and the two supports 20 are enclosed into a cage-shaped structure, and the inflatable air bag 30 is limited in the cage-shaped structure. Because the inflatable airbag 30 which is easy to deform is fixedly arranged on other parts, the difficulty is high, and the inflatable airbag 30 is easy to shake, the inflatable airbag 30 is limited by a cage-shaped structure to realize relative fixation, and the inflatable airbag is convenient and quick.

The working principle is as follows: water is pumped into the inner cavity of the tank body 10 from the water inlet 101 by a water pump, the flow direction of the water is changed and the flow speed is reduced under the blockage of the inflatable air bag 30, and the water flows into the fluid pipeline through the through hole 201; as the water pump continuously pumps water, the water in the fluid pipeline continuously flows, and generates shearing resistance when flowing through the inner side wall of the tank body 10 and the outer wall of the inflatable air bag 30, so that the corresponding fluid flow rate is reduced, and finally the fluid flows out from the water outlet 102. When the water flow is too large, the air pressure of the inflatable air bag 30 is smaller than the water pressure of the inner cavity of the tank body 10, the inflatable air bag 30 is compressed until the water pressure of the inflatable air bag 30 is equal to the water pressure of the inner cavity of the tank body 10, at the moment, the pressure of the water applied to the inflatable air bag 30 is increased relative to the pressure of the water before the inflatable air bag 30 is compressed, the water flow is increased, and the buffer effect is achieved through the deformation of the inflatable air bag 30.

Example 2

As shown in fig. 3 and 4, the top of the can body 10 is omitted from fig. 4. The embodiment provides a pressure tank, which comprises a tank body 10, wherein a water inlet 101 is formed in the top of the tank body 10, and a water outlet 102 is formed in the bottom of the tank body 10; the inflatable air bag type air-conditioning tank further comprises a bracket 20 fixed on the inner wall of the tank body 10 and an inflatable air bag 30 arranged on the inner wall of the tank body 10 through the bracket 20; the outer wall of the inflatable air bag 30 and the inner side wall of the tank body 10 enclose a fluid pipeline; the holder 20 is provided with a through hole 201 through which fluid passes. The inflatable bladder 30 is fixedly mounted to the bracket 20.

The pressure tank of the present embodiment is suitable for gas and liquid buffering, and if the corrosion is involved, the material of the tank body 10 and the material of the inflatable air bag 30 are selected accordingly, and will not be described herein again, and the operation principle of the pressure tank in the present embodiment is described below by taking water as an example.

The inflatable air bag 30 is positioned in the middle of the inner cavity of the tank body 10, the inner cavity of the tank body 10 is cylindrical, the inflatable air bag 30 is cylindrical, and the axis of the inflatable air bag 30 is collinear with the axis of the inner cavity of the tank body 10. On the premise that the inflatable air bag 30 is not compressed, the fluid pipeline is ensured to be in a circular pipe shape, and the flow rate of each part of the fluid pipeline is uniform.

The bottom surface and the side surface of the inflatable air bag 30 are in round angle transition. The fillet transition can slow down the flow resistance of water flowing through the corresponding position, and reduce the power loss caused in the stable use process.

The end of the inflatable air bag 30 adjacent to the water inlet 101 is provided with a groove 301, and the groove 301 is communicated with the water inlet 101. Water enters from the water inlet 101 and then passes through the blocking of the groove 301, turbulence is formed in the groove 301 to reduce the flow speed, and the requirement of the pressure tank on the flow speed of the inlet water can be reduced.

The groove bottom of the groove 301 is arc-shaped. The arc-shaped groove 301 bottom can make the rivers produce more different flow directions, forms higher turbulence level, improves the rivers speed reduction effect to water inlet 101.

The water inlet 101 is arranged at the center of the top of the tank body 10, and the water outlet 102 is arranged at the center of the bottom of the tank body 10.

The number of the brackets 20 is two, and the two brackets 20 fix the front and rear ends of the inflatable air bag 30, respectively. The single bracket 20 is prevented from shaking to a large extent under the impact of water due to the inflatable airbag 30 when being fixed, and the pressure tank is prevented from shaking to influence the stability of the installation structure when being installed on a pipeline.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A pressure tank comprises a tank body, wherein a water inlet is formed in the top of the tank body, and a water outlet is formed in the bottom of the tank body; the tank is characterized by also comprising a bracket fixed on the inner wall of the tank body and an inflatable air bag limited on the bracket; and the outer wall of the inflatable air bag and the inner side wall of the tank body enclose a fluid pipeline.

2. The pressure tank of claim 1 further comprising a cage secured to said frame, said cage and said frame enclosing a cage structure, said inflatable bladder being located within said cage structure.

3. The pressure tank of claim 1 wherein said inflatable bladder is located in the middle of said tank interior and said inflatable bladder is secured to said frame.

4. A pressure tank according to claim 2 or claim 3 wherein the tank cavity is cylindrical and the inflatable bladder is cylindrical, the axis of the inflatable bladder being co-linear with the axis of the tank cavity.

5. The pressure tank of claim 4 wherein the bottom surface and the sides of the inflatable bladder are rounded off.

6. The pressure tank of claim 5, wherein an end of said inflatable bladder adjacent said water inlet is provided with a recess, said recess communicating with said water inlet.

7. The pressure tank of claim 6 wherein the floor of the groove is arcuate.

8. The pressure tank of claim 1, wherein said water inlet is centrally located in the top of said tank body and said water outlet is centrally located in the bottom of said tank body.

9. The pressure tank of claim 3, wherein there are two said brackets, and said two said brackets fix the front and rear ends of said inflatable bladder, respectively.