A new type of expansion tank for maintaining the pressure of a heating system stable

Abstract

The utility model belongs to the technical field of expansion tank, concretely is a kind of novel expansion tank of maintaining heating system pressure stability, including main part, and main part includes tank body, the inside installation of tank body has pressure receiving mechanism, and pressure receiving mechanism includes air bag, and the upper surface of air bag is fixedly connected with the inner wall of tank body, and the surface of air bag is fixedly connected with connecting ring, and the inner wall of tank body is installed with inflating mechanism, and inflating mechanism includes inflating ring, and the surface of inflating ring is fixedly connected with the inner wall of tank body, and the surface of inflating ring is installed with pull ring, and the upper surface of inflating ring is installed with second pressure valve, and the upper surface of inflating ring is fixedly connected with inflating mouth.The utility model can prevent internal air bag from shaking.

Description

Technical Field

[0001] This invention relates to the field of expansion tank technology, specifically a novel expansion tank for maintaining stable pressure in a heating system. Background Technology

[0002] In dairy production, dairy products expand in volume when heated. If the system is closed, the expanded dairy products have nowhere to go, leading to a rapid increase in system pressure and potentially causing pipe rupture, valve damage, and pump overload. The core function of an expansion tank is to absorb this expanded dairy volume: the tank is pre-pressurized with nitrogen (or air). When the system water temperature rises and the dairy products expand, the pressure pushes the dairy products into the expansion tank, compressing the gas inside and thus "storing" the excess.

[0003] The existing expansion tanks used to maintain stable pressure in heating systems are used because the air nozzles of the tank are located on one side of the air bladder. Therefore, during the inflation process, the air bladder will shake due to uneven force on the left and right sides. The shaking is accompanied by the displacement of the air bladder (such as deviating to one side of the inner wall of the tank). This may cause the air chamber to be over-compressed in some areas or the water chamber to be unable to effectively contain the expanding water. In extreme cases, the system pressure may exceed the design limit, causing serious failures such as pipe bursts and valve damage. Summary of the Invention

[0004] The purpose of this invention is to provide a novel expansion tank that maintains stable pressure in a heating system, preventing internal air bladders from shaking and accommodating displacement caused by the air bladders shrinking during contraction.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A novel expansion tank for maintaining stable pressure in a heating system is provided, comprising a main body, the main body including a tank body, a pressure-bearing mechanism installed inside the tank body, the pressure-bearing mechanism including an air bladder, the upper surface of the air bladder being fixedly connected to the inner wall of the tank body, a connecting ring being fixedly connected to the surface of the air bladder, an inflation mechanism installed on the inner wall of the tank body, the inflation mechanism including an inflation ring, the surface of the inflation ring being fixedly connected to the inner wall of the tank body, a pull ring being installed on the surface of the inflation ring, a second pressure valve being installed on the upper surface of the tank body, the end of the pressure valve extending into the interior of the inflation ring, and an inflation nozzle being fixedly connected to the upper surface of the inflation ring.

[0006] Optionally, an air outlet pipe is fixedly connected to the lower surface of the air ring, a solenoid valve is installed on the surface of the air outlet pipe, and a first pressure valve is fixedly connected to the surface of the tank.

[0007] Optionally, the surface of the inflatable ring is provided with a groove, the inner wall of the groove is movably connected to a limiting block, the surface of the limiting block is fixedly connected to a spring, the end of the spring is fixedly connected to the surface of the pull ring, and the surface of the pull ring is in contact with the surface of the connecting ring.

[0008] Optionally, an exhaust valve is fixedly connected to the upper surface of the tank, a limit ring is fixedly connected to the surface of the tank, and a first flange is fixedly connected to the lower surface of the tank.

[0009] Optionally, a support mechanism is installed on the lower surface of the limiting ring. The support mechanism includes a support ring, the upper surface of which is in contact with the lower surface of the limiting ring, and a bracket is fixedly connected to the lower surface of the support ring.

[0010] Optionally, a feeding mechanism is installed on the lower surface of the first flange, the feeding mechanism includes a second flange, the lower surface of the first flange is in contact with the upper surface of the second flange, bolts are installed on the surface of the second flange, and a feeding pipe is fixedly connected to the lower surface of the second flange.

[0011] Compared with the prior art, the present invention has the following beneficial effects: In use, the connecting ring fixed to the surface of the airbag is hooked to the pull ring fixed to the surface of the inflation ring. During inflation, the inflation mechanism 2 is first connected above the inflation nozzle. At this time, the solenoid valve is closed. Then, the value displayed by the second pressure valve is observed. When the second pressure valve reaches a certain value, that is, after the inside of the inflation ring is filled with gas, the solenoid valves on both sides are opened at the same time, so that the gas is sent out from both sides of the main body at the same time, avoiding uneven force on the airbag. The pull ring installed on the inflation ring is hooked to the connecting ring fixed to the surface of the airbag, which further ensures the stability of the airbag. Compared with conventional devices, where the air nozzle of the tank is located on one side of the airbag, the airbag will shake during the initial inflation process due to uneven force on the left and right sides. The shaking is accompanied by the airbag shifting (such as leaning towards the inner wall of the tank), which may cause the air chamber to be over-compressed locally or the water chamber to be unable to effectively contain the expanding water. In extreme cases, the system pressure may exceed the design limit, causing serious failures such as pipe bursting and valve damage. This utility model can prevent the internal airbag from shaking during use.

[0012] The inner wall of the inflatable ring of this utility model has a groove, and the inner wall of the groove is movably connected to a limiting block. The limiting block is connected to the pull ring by a spring, and the connecting ring connected to the pull ring is fixed on the airbag. Through the cooperation of the spring and the limiting block, it can not only play a certain role in stabilizing the left and right sides of the airbag, but also adapt to the displacement that occurs when the airbag shrinks in volume during the contraction process. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a first-view overall structural diagram of the present invention; Figure 2 This is a cross-sectional structural diagram of the present invention; Figure 3 This utility model Figure 2 Enlarged structural diagram at point A; Figure 4 This is a schematic diagram of the overall structure of the present invention from a second perspective; In the diagram: 1. Main body; 101. Tank body; 102. Exhaust valve; 103. First flange; 104. Limiting ring; 105. First pressure valve; 2. Inflating mechanism; 201. Inflating ring; 202. Exhaust pipe; 203. Solenoid valve; 204. Second pressure valve; 205. Inflating nozzle; 206. Groove; 207. Limiting block; 208. Spring; 209. Pull ring; 3. Pressure-bearing mechanism; 301. Airbag; 302. Connecting ring; 4. Support mechanism; 401. Support ring; 402. Bracket; 5. Feeding mechanism; 501. Second flange; 502. Bolt; 503. Feeding pipe. Detailed Implementation

[0015] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0016] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0017] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0018] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0019] Reference Figure 1-4 The present invention will now be described. A novel expansion tank for maintaining stable pressure in a heating system includes a main body 1, which includes a tank body 101. A pressure-bearing mechanism 3 is installed inside the tank body 101. The pressure-bearing mechanism 3 includes an air bladder 301, the upper surface of which is fixedly connected to the inner wall of the tank body 101. A connecting ring 302 is fixedly connected to the surface of the air bladder 301. An inflation mechanism 2 is installed on the inner wall of the tank body 101, including an inflation ring 201. The surface of the inflation ring 201 is fixedly connected to the inner wall of the tank body 101. A pull ring 209 is installed on the surface of the inflation ring 201. A second pressure valve 204 is installed on the upper surface of the tank body 101, with its end extending into the interior of the inflation ring 201. The upper surface of the inflation ring 201 is fixedly connected to the inner wall of the tank body 101. An inflation nozzle 205 is fixedly connected to the airbag 301. The connecting ring 302 fixed on the surface of the airbag 301 is hooked to the pull ring 209 fixed on the surface of the inflation ring 201. When inflating, the inflation mechanism 2 is first connected above the inflation nozzle 205. At this time, the solenoid valve 203 is in the closed state. Then, observe the value displayed by the second pressure valve 204. When the second pressure valve 204 reaches a certain value, that is, after the inside of the inflation ring 201 is filled with gas, the solenoid valves 203 on both sides are opened at the same time, so that the gas is sent out from both sides of the main body 1 at the same time, avoiding uneven force on the airbag 301. The pull ring 209 installed on the inflation ring 201 is hooked to the connecting ring 302 fixed on the surface of the airbag 301, which further ensures the stability of the airbag 301.

[0020] An air outlet pipe 202 is fixedly connected to the lower surface of the inflation ring 201. A solenoid valve 203 is installed on the surface of the air outlet pipe 202. A first pressure valve 105 is fixedly connected to the surface of the tank body 101. A groove 206 is formed on the surface of the inflation ring 201. A limit block 207 is movably connected to the inner wall of the groove 206. A spring 208 is fixedly connected to the surface of the limit block 207. The end of the spring 208 is fixedly connected to the surface of the pull ring 209. The surface of the pull ring 209 is in contact with the surface of the connecting ring 302. The groove 206 is formed on the inner wall of the inflation ring 201, and the limit block 207 is movably connected to the inner wall of the groove 206. The limit block 207 is connected to the pull ring 209 through the spring 208. The connecting ring 302, which is hooked to the pull ring 209, is fixed to the airbag 301. By using the cooperation of the spring 208 and the limit block 207, the left and right sides of the airbag 301 can be controlled. The two sides provide a certain degree of stability and can also accommodate the displacement caused by the shrinking volume of the airbag 301 during the contraction process; an exhaust valve 102 is fixedly connected to the upper surface of the tank body 101, a limit ring 104 is fixedly connected to the surface of the tank body 101, a first flange 103 is fixedly connected to the lower surface of the tank body 101, a support mechanism 4 is installed on the lower surface of the limit ring 104, the support mechanism 4 includes a support ring 401, the upper surface of the support ring 401 is in contact with the lower surface of the limit ring 104, a bracket 402 is fixedly connected to the lower surface of the support ring 401, a feeding mechanism 5 is installed on the lower surface of the first flange 103, the feeding mechanism 5 includes a second flange 501, the lower surface of the first flange 103 is in contact with the upper surface of the second flange 501, bolts 502 are installed on the surface of the second flange 501, and a feeding pipe 503 is fixedly connected to the lower surface of the second flange 501.

[0021] Working principle: During inflation, first connect the inflation mechanism 2 above the inflation nozzle 205. At this time, the solenoid valve 203 is in the closed state. Then observe the value displayed by the second pressure valve 204. When the second pressure valve 204 reaches a certain value, that is, when the inflation ring 201 is full of gas, simultaneously open the solenoid valves 203 on both sides, so that the gas is sent out from both sides of the main body 1 at the same time, avoiding uneven force on the airbag 301. The pull ring 209 installed on the inflation ring 201 hooks with the connecting ring 302 fixed on the surface of the airbag 301. The connection further ensures the stability of the airbag 301. The inner wall of the inflation ring 201 has a groove 206, and the inner wall of the groove 206 is connected to a limiting block 207. The limiting block 207 is connected to the pull ring 209 through a spring 208, and the connecting ring 302, which is hooked to the pull ring 209, is fixed on the airbag 301. The cooperation of the spring 208 and the limiting block 207 can not only stabilize the left and right sides of the airbag 301, but also adapt to the displacement caused by the airbag 301 shrinking in volume during the contraction process.

[0022] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A novel expansion tank for maintaining stable pressure in a heating system, comprising a main body (1), characterized in that: The main body (1) includes a tank (101), and a pressure-bearing mechanism (3) is installed inside the tank (101). The pressure-bearing mechanism (3) includes an airbag (301). The upper surface of the airbag (301) is fixedly connected to the inner wall of the tank (101). A connecting ring (302) is fixedly connected to the surface of the airbag (301). An inflation mechanism (2) is installed on the inner wall of the tank (101). The inflation mechanism (2) includes an inflation ring (201). The surface of the inflation ring (201) is fixedly connected to the inner wall of the tank (101). A pull ring (209) is installed on the surface of the inflation ring (201). A second pressure valve (204) is installed on the upper surface of the tank (101). The end of the pressure valve (204) extends into the interior of the inflation ring (201). An inflation nozzle (205) is fixedly connected to the upper surface of the inflation ring (201).

2. The novel expansion tank for maintaining stable pressure in a heating system as described in claim 1, characterized in that: An air outlet pipe (202) is fixedly connected to the lower surface of the air ring (201), a solenoid valve (203) is installed on the surface of the air outlet pipe (202), and a first pressure valve (105) is fixedly connected to the surface of the tank (101).

3. The novel expansion tank for maintaining stable pressure in a heating system as described in claim 1, characterized in that: The surface of the inflatable ring (201) is provided with a groove (206), and a limiting block (207) is movably connected to the inner wall of the groove (206). A spring (208) is fixedly connected to the surface of the limiting block (207), and the end of the spring (208) is fixedly connected to the surface of the pull ring (209). The surface of the pull ring (209) is in contact with the surface of the connecting ring (302).

4. The novel expansion tank for maintaining stable pressure in a heating system as described in claim 1, characterized in that: An exhaust valve (102) is fixedly connected to the upper surface of the tank (101), a limit ring (104) is fixedly connected to the surface of the tank (101), and a first flange (103) is fixedly connected to the lower surface of the tank (101).

5. The novel expansion tank for maintaining stable pressure in a heating system as described in claim 4, characterized in that: The lower surface of the limiting ring (104) is equipped with a support mechanism (4), which includes a support ring (401). The upper surface of the support ring (401) is in contact with the lower surface of the limiting ring (104), and a bracket (402) is fixedly connected to the lower surface of the support ring (401).

6. The novel expansion tank for maintaining stable pressure in a heating system as described in claim 4, characterized in that: A feeding mechanism (5) is installed on the lower surface of the first flange (103). The feeding mechanism (5) includes a second flange (501). The lower surface of the first flange (103) is in contact with the upper surface of the second flange (501). Bolts (502) are installed on the surface of the second flange (501). A feeding pipe (503) is fixedly connected to the lower surface of the second flange (501).

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