Multi-layer sealed bag type pressure tank

Abstract

The utility model discloses a multi-layer sealed bag type pressure tank, which belongs to the field of pressure tanks and comprises a tank body, an air bag is arranged in the tank body, an exhaust valve communicated with the air bag is arranged at the top of the tank body, and a connecting pipe communicated with the air bag is arranged at the bottom of the tank body through a connector. An inflation nozzle is arranged at the top of the tank body, a pressure gauge is arranged on one side of the tank body, supporting legs are arranged at the bottom of the tank body, the tank body is sleeved with a detachable protection assembly used for protecting the tank body, and the protection assembly comprises a first sealing shell and a second sealing shell which are matched with each other to form a cylindrical shell. According to the multi-layer sealed bag type pressure tank, the protection assembly is arranged outside the tank body, so that the overall structural strength of the bag type pressure tank can be improved, the bag type pressure tank can better bear internal pressure and impact and extrusion of the external environment, and therefore the tank body can be prevented from deforming or cracking under the high-pressure or complex working condition.

Description

Technical Field

[0001] The utility model relates to the technical field of pressure tanks, in particular to a multi-layer sealed bladder-type pressure tank. Background Art

[0002] The bladder pressure tank is an important device used in central air conditioners, boilers, water heaters, variable frequency, and constant pressure water supply equipment. It can buffer pressure fluctuations through the built-in air bag, eliminate water hammer, stabilize pressure and unload, and avoid frequent starting of the water pump due to slight changes in water pressure. Its working principle is based on Boyle's law. When the pressure in the tank changes, the bladder will automatically expand or contract to buffer pressure fluctuations.

[0003] In some complex working conditions, such as large temperature changes, frequent vibrations or external impacts, bladder pressure tanks require higher structural strength and stability. Traditional bladder pressure tanks only have a single-layer stainless steel shell, which is not enough to cope with complex working conditions. As a result, the bladder pressure tank is prone to deformation and rupture in complex working conditions, resulting in a short service life of the bladder pressure tank. Utility Model Content

[0004] The purpose of the utility model is to propose a multi-layer sealed bladder pressure tank in order to solve the problem that the existing bladder pressure tank is not sufficient to cope with complex working conditions, which causes the bladder pressure tank to be easily deformed and ruptured in complex working conditions, thereby resulting in a short service life of the bladder pressure tank.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technology: a multi-layer sealed bladder-type pressure tank, comprising a tank body, an air bag is arranged inside the tank body, an exhaust valve connected to the air bag is arranged on the top of the tank body, a connecting pipe connected to the air bag through an interface is arranged on the bottom of the tank body, an inflation nozzle is arranged on the top of the tank body, and a pressure gauge is arranged on one side of the tank body, a supporting leg is arranged on the bottom of the tank body, and a detachable protective component for protecting the tank body is provided on the outside of the tank body.

[0006] As a further description of the above technical solution: the protection assembly includes a first sealed shell and a second sealed shell that cooperate with each other to form a cylindrical shell, and the first sealed shell and the second sealed shell are connected by connecting bolts on a connecting plate.

[0007] As a further description of the above technical solution: the first sealed shell and the second sealed shell are both provided with corresponding first positioning plates and second positioning plates, the first positioning plate is provided with a positioning plug, and the second positioning plate is provided with a positioning jack corresponding to the positioning plug.

[0008] As a further description of the above technical solution: the protection component also includes an anti-collision pad set on the first sealed shell and the second sealed shell through a slot, the anti-collision pad is set in an arc shape and the outer side of the anti-collision pad protrudes from the outer side of the first sealed shell and the second sealed shell.

[0009] As a further description of the above technical solution: a plurality of cavities are formed inside the crash pad and are evenly arranged along the arc line thereof.

[0010] As a further description of the above technical solution: the first sealed shell includes a double-layer alloy layer, and a fire-resistant layer is provided between the double-layer alloy layer.

[0011] As a further description of the above technical solution: a pair of lifting ears is provided on the top of the tank body.

[0012] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0013] By setting up protective components on the outside of the tank body, the overall structural strength of the bladder pressure tank can be increased, so that it can better withstand internal pressure and the impact and extrusion of the external environment. In some complex working conditions, such as large temperature changes, frequent vibrations or external impacts, the protective components on the outside of the tank body can prevent the tank body from deformation or rupture, thereby improving the safety of the pressure tank and greatly extending the service life of the pressure tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 Shows the overall structure provided by the embodiment of the utility model Figure 1 ;

[0015] Figure 2 Shows the overall structure provided by the embodiment of the utility model Figure 2 ;

[0016] Figure 3 A schematic cross-sectional view according to an embodiment of the present invention is shown;

[0017] Figure 4 A schematic structural diagram of a protection assembly according to an embodiment of the present invention is shown;

[0018] Figure 5 A partial enlarged schematic diagram according to an embodiment of the present utility model is shown;

[0019] Figure 6 A schematic structural diagram of an anti-collision pad provided according to an embodiment of the present utility model is shown;

[0020] Figure 7 A schematic diagram of the structure of a first sealed housing provided according to an embodiment of the present utility model is shown.

[0021] Legend:

[0022] 1. Tank body; 2. Exhaust valve; 3. Airbag; 4. Interface; 5. Connecting pipe; 6. Inflating nozzle; 7. Pressure gauge; 8. Support leg; 9. Protective assembly; 91. First sealed shell; 91a. Alloy layer; 91b. Fire-resistant layer; 911. First positioning plate; 912. Positioning plug; 92. Second sealed shell; 921. Second positioning plate; 922. Positioning jack; 93. Connecting plate; 94. Connecting bolt; 95. Slot; 96. Anti-collision pad; 961. Cavity. DETAILED DESCRIPTION

[0023] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] Reference Figure 1-Figure 7 The present embodiment provides a multi-layer sealed bladder pressure tank, comprising a tank body 1, an air bag 3 provided inside the tank body 1, an exhaust valve 2 connected to the air bag 3 provided on the top of the tank body 1, a connecting pipe 5 connected to the air bag 3 through an interface 4 provided at the bottom of the tank body 1, an inflation nozzle 6 provided on the top of the tank body 1, and a pressure gauge 7 provided on one side of the tank body 1, a supporting leg 8 provided on the bottom of the tank body 1, a detachable protective component 9 for protecting the tank body 1 provided on the outside of the tank body 1, and a pair of lifting ears provided on the top of the tank body 1.

[0025] In the present invention, the pressure tank is fixed by the support legs 8 at the bottom of the tank body 1, the connecting pipe 5 at the interface 4 on the tank body 1 is connected to the management of the water supply equipment, and the internal pressure of the pressure tank can be monitored by the pressure gauge 7 on the tank body 1. When the system pressure rises and is greater than the pressure of the pre-filled gas, a part of the working medium such as water will enter the airbag 3, compressing the gas between the airbag 3 and the tank body 1, so that the gas pressure increases. When the gas pressure rises to the same level as the system pressure, the medium stops entering. On the contrary, when the system pressure drops and the medium pressure in the system is lower than that of the airbag, the medium stops entering. 3 and the tank body 1, the water in the airbag 3 will be squeezed out by the gas and replenished into the system, causing the system pressure to increase until the system working medium pressure is equal to the gas pressure between the airbag 3 and the tank body 1. The water in the airbag 3 is no longer replenished from the outside system to maintain dynamic balance. The exhaust valve 2 on the airbag 3 is used to release excess gas, and the inflation nozzle 6 is used to replenish pressure. The protective component 9 on the outside of the tank body 1 can prevent the tank body 1 from deformation or rupture in some complex working environments, thereby improving the safety of the pressure tank and greatly extending the service life of the pressure tank.

[0026] Specifically, such as Figure 2-Figure 5 As shown, the protective assembly 9 includes a first sealed shell 91 and a second sealed shell 92 that cooperate with each other to form a cylindrical shell. The first sealed shell 91 and the second sealed shell 92 are connected by connecting bolts 94 on a connecting plate 93. The first sealed shell 91 and the second sealed shell 92 are both provided with corresponding first positioning plates 911 and second positioning plates 921. The first positioning plate 911 is provided with a positioning plug 912, and the second positioning plate 921 is provided with a positioning hole 922 corresponding to the positioning plug 912.

[0027] When the protective assembly 9 is installed, the first sealing shell 91 and the second sealing shell 92 are aligned with the tank body 1 and enclosed. At this time, the first positioning plates 911 and the second positioning plates 921 on the first sealing shell 91 and the second sealing shell 92 correspond to each other, and the positioning plug 912 on the first positioning plate 911 is inserted into the positioning socket 922 of the second positioning plate 921, thereby first connecting the first sealing shell 91 and the second sealing shell 92, facilitating the operation of the subsequent connecting bolts 94 on the connecting plate 93, making the installation of the first sealing shell 91 and the second sealing shell 92 simpler and more convenient. The end of the positioning plug 912 has a wedge-shaped limit block, which is strip-shaped and has a certain elasticity. Therefore, when the protective assembly 9 needs to be disassembled, after removing the connecting bolts 94, press the positioning plug 912 and then disengage it from the positioning socket 922. It is easy to operate, convenient for the installation and disassembly of the protective assembly 9, and convenient for the maintenance and repair of the protective assembly 9.

[0028] Among them, the first sealed shell 91 includes a double-layer alloy layer 91a, and a refractory layer 91b is arranged between the double-layer alloy layer 91a. The alloy layer 91a is an aluminum alloy structure, and the refractory layer 91b is ceramic fiber. The alloy layer 91a with an aluminum alloy structure can further improve the strength of the pressure tank so that it will not be deformed when it is bumped. The design of the refractory layer 91b enables the pressure tank to remain stable in a high temperature environment, thereby improving its safety.

[0029] It should be noted that if Figure 4 and Figure 6 As shown, the protective component 9 also includes an anti-collision pad 96 arranged on the first sealed shell 91 and the second sealed shell 92 through a slot 95. The anti-collision pad 96 is arranged in an arc shape and the outer side surface of the anti-collision pad 96 protrudes from the outer side surface of the first sealed shell 91 and the second sealed shell 92. A plurality of cavities 961 are formed inside the anti-collision pad 96 and are evenly arranged along its arc.

[0030] Among them, the anti-collision pad 96 is made of rubber material. Arranging the anti-collision pad 96 on the outside of the first sealed shell 91 and the second sealed shell 92 can improve the anti-collision effect of the tank body 1. During the transportation or installation and use of the pressure tank, the anti-collision pad 96 can provide anti-collision protection, thereby improving the safety of the pressure tank. The cavity 961 structure in the anti-collision pad 96 can absorb and disperse the impact energy, so that it can more effectively buffer when the pressure tank collides, further improving the safety of the tank body 1.

[0031] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A multi-layer sealed bladder pressure tank, comprising a tank body (1), an air bag (3) provided inside the tank body (1), an exhaust valve (2) connected to the air bag (3) provided at the top of the tank body (1), a connecting pipe (5) connected to the air bag (3) via an interface (4) provided at the bottom of the tank body (1), an inflation nozzle (6) provided at the top of the tank body (1), a pressure gauge (7) provided on one side of the tank body (1), and a supporting leg (8) provided at the bottom of the tank body (1), characterized in that: The outer sleeve of the tank body (1) is provided with a detachable protective component (9) for protecting the tank body (1).

2. A multi-layer sealed bladder pressure tank according to claim 1, characterized in that: The protection assembly (9) comprises a first sealing shell (91) and a second sealing shell (92) which cooperate with each other to form a cylindrical shell. The first sealing shell (91) and the second sealing shell (92) are connected via connecting bolts (94) on a connecting plate (93).

3. A multi-layer sealed bladder pressure tank according to claim 2, characterized in that: The first sealed shell (91) and the second sealed shell (92) are both provided with a corresponding first positioning plate (911) and a second positioning plate (921); the first positioning plate (911) is provided with a positioning plug (912); and the second positioning plate (921) is provided with a positioning socket (922) corresponding to the positioning plug (912).

4. A multi-layer sealed bladder pressure tank according to claim 3, characterized in that: The protection assembly (9) further comprises an anti-collision pad (96) arranged on the first sealed shell (91) and the second sealed shell (92) through a card slot (95); the anti-collision pad (96) is arranged in an arc shape, and the outer side surface of the anti-collision pad (96) protrudes from the outer side surfaces of the first sealed shell (91) and the second sealed shell (92).

5. The multi-layer sealed bladder pressure tank according to claim 4, characterized in that: The anti-collision pad (96) is internally formed with a plurality of cavities (961) evenly arranged along its arc line.

6. The multi-layer sealed bladder pressure tank according to claim 2, characterized in that: The first sealed shell (91) comprises a double-layer alloy layer (91a), and a fire-resistant layer (91b) is provided between the double-layer alloy layer (91a).

7. The multi-layer sealed bladder pressure tank according to claim 1, characterized in that: A pair of lifting ears are provided on the top of the tank body (1).

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