Bag type pressure tank with movable inner layer

Abstract

The utility model discloses a bag type pressure tank with a movable inner layer, which belongs to the field of pressure tanks and comprises an air bag arranged in a tank body, an exhaust valve communicated with the air bag is arranged at the top of the tank body, an inflation nozzle communicated with the inside of the tank body is arranged at the top of the tank body, a pressure gauge is arranged on one side of the tank body, and a pressure gauge is arranged on the other side of the tank body. Supporting legs are arranged at the bottom of the tank body, a connector mechanism which is communicated with the air bag and can improve the pressure relief efficiency and stability of the pressure tank is arranged at the bottom of the tank body, and the connector mechanism comprises a connector pipe which penetrates through the tank body and is connected with the bottom of the air bag. A pressure relief pipe located in the air bag is arranged in the connector pipe through a support set, and a pressure relief hole is formed in the pressure relief pipe. According to the bag type pressure tank with the movable inner layer, more pressure relief channels are provided through cooperation of the pressure relief pipe and the pressure relief hole and the connector pipe, the pressure in the air bag can be quickly released under the condition that quick pressure relief is needed, safety and stability of a system are ensured, and the pressure relief efficiency is greatly improved.

Description

Technical Field

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

[0002] The bladder pressure tank with a movable inner layer usually refers to the air bag pressure tank or the bladder diaphragm air pressure tank. Its characteristic is that it contains a movable air bag or bladder body inside. The bladder pressure tank with a movable inner layer is an important equipment used in central air conditioning, boilers, water heaters, frequency conversion, 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] During the use of the bladder pressure tank, when the water pressure increases, the air in the air chamber is compressed and the liquid enters the air bag. When the water pressure decreases, the air pressure in the air chamber is greater than the pressure of the pipeline, and the liquid in the air bag is pressed back into the pipeline. Traditional pressure tanks only relieve pressure through the interface. In situations where rapid pressure relief is required, such as when the system pressure suddenly increases or an emergency shutdown is required, it is impossible to relieve pressure in a timely and effective manner only through the interface, resulting in low pressure relief efficiency. Utility Model Content

[0004] The purpose of the utility model is to solve the problem that the existing bladder pressure tank cannot effectively and timely release pressure only through the interface when rapid pressure relief is required, resulting in low pressure relief efficiency, and to propose a bladder pressure tank with a movable inner layer.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technology: a bladder-type pressure tank with a movable inner layer, including an air bag arranged inside the tank body, an exhaust valve connected to the air bag is provided on the top of the tank body, and an inflation nozzle connected to its interior is provided on the top of the tank body, a pressure gauge is provided on one side of the tank body, a supporting leg is provided at the bottom of the tank body, and an interface mechanism connected to the air bag is provided at the bottom of the tank body, which can improve the pressure relief efficiency and stability of the pressure tank.

[0006] As a further description of the above technical solution: the interface mechanism includes an interface tube that passes through the tank body and is connected to the bottom of the airbag. The interior of the interface tube is provided with a pressure relief tube located inside the airbag through a bracket group, and a pressure relief hole is opened on the pressure relief tube.

[0007] As a further description of the above technical solution: there are several pressure relief holes and they are evenly arranged on the pressure relief pipe along its height direction, and the sizes of the pressure relief holes increase from bottom to top along the height direction of the pressure relief pipe.

[0008] As a further description of the above technical solution: the bracket group includes a first bracket and a second bracket arranged in the interface pipe, the bottom of the pressure relief pipe is provided with a threaded tube arranged coaxially therewith, and the threaded tube is provided with a mounting nut abutting the bottom of the second bracket.

[0009] As a further description of the above technical solution: the interface mechanism further includes a filter assembly arranged in the interface pipe below the pressure relief pipe;

[0010] The filter assembly includes a positioning plate, and a filter screen is arranged on the positioning plate through a positioning rod.

[0011] As a further description of the above technical solution: a first spring is provided on the positioning rod, and a locking nut is provided at the bottom of the positioning rod through a threaded end.

[0012] As a further description of the above technical solution: a support rod is provided at the bottom of the support leg through a mounting groove, a foot pad is provided at the bottom of the support rod, a second spring is provided on the support rod between the support leg and the foot pad, and a buffer pad is provided inside the mounting groove.

[0013] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0014] The pressure relief pipe and the pressure relief hole cooperate with the interface pipe to provide more pressure relief channels. When rapid pressure relief is required, the pressure in the airbag can be quickly released, ensuring the safety and stability of the system and greatly improving the pressure relief efficiency. By quickly and evenly releasing the pressure in the airbag, the system pressure fluctuation can be reduced, and the stability and reliability of the system can be improved.

[0015] The filter assembly in the interface mechanism can effectively prevent impurities, particulate matter, etc. in the water from entering the pressure tank, preventing these impurities from causing wear or blockage to the air bag inside the tank, thereby extending the service life of the pressure tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Shows a schematic diagram of the overall structure provided according to an embodiment of the utility model;

[0017] Figure 2 A schematic diagram of the internal structure of a tank body according to an embodiment of the present invention is shown;

[0018] Figure 3 The structure diagram of the interface mechanism provided according to the embodiment of the utility model is shown Figure 1 ;

[0019] Figure 4 The structure diagram of the interface mechanism provided according to the embodiment of the utility model is shown Figure 2 ;

[0020] Figure 5 A schematic diagram of a local structure provided according to an embodiment of the present utility model is shown;

[0021] Figure 6 Shown is a schematic structural diagram of a filter assembly provided according to an embodiment of the present utility model;

[0022] Figure 7 A structural schematic diagram of a support leg provided according to an embodiment of the utility model is shown.

[0023] Legend:

[0024] 1. Tank body; 2. Airbag; 3. Exhaust valve; 4. Inflating nozzle; 5. Pressure gauge; 6. Interface mechanism; 61. Interface pipe; 62. First bracket; 63. Second bracket; 64. Pressure relief pipe; 641. Threaded pipe; 642. Mounting nut; 65. Pressure relief hole; 66. Filter assembly; 661. Positioning plate; 662. Positioning rod; 663. Filter screen; 664. First spring; 665. Threaded end; 666. Locking nut; 7. Support leg; 71. Mounting slot; 72. Support rod; 73. Foot pad; 74. Second spring; 75. Cushion pad. DETAILED DESCRIPTION

[0025] 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.

[0026] Reference Figure 1-Figure 7 As shown, the present embodiment provides a bladder-type pressure tank with a movable inner layer, comprising an air bag 2 arranged inside a tank body 1, an exhaust valve 3 connected to the air bag 2 provided on the top of the tank body 1, and an inflation nozzle 4 connected to the interior thereof provided on the top of the tank body 1, a pressure gauge 5 provided on one side of the tank body 1, a supporting leg 7 provided on the bottom of the tank body 1, and an interface mechanism 6 connected to the air bag 2 and capable of improving the pressure relief efficiency and stability of the pressure tank provided on the bottom of the tank body 1.

[0027] In the present invention, the pressure tank is installed and placed by supporting legs 7. During the use of the pressure tank, when the water pressure in the system becomes larger, the air in the air chamber between the tank body 1 and the air bag 2 is compressed, and the liquid enters the air bag 2. When the water pressure in the system becomes smaller, the air pressure in the air chamber between the tank body 1 and the air bag 2 is greater than the pressure of the pipeline, and the liquid in the air bag 2 is pressed into the pipeline again, thereby maintaining the dynamic balance of the system pressure. The exhaust valve 3 on the air bag 2 is used to release excess gas, and the inflation nozzle 4 is used to supplement the pressure. A pressure gauge 5 for detecting the air chamber pressure is provided on the tank body 1. The air chamber pressure is observed by the pressure gauge 5. When the liquid in the air bag 2 is discharged for pressure relief, the interface mechanism 6 can improve the pressure relief efficiency and stability of the pressure tank and achieve rapid pressure relief.

[0028] Specifically, such as Figure 2-Figure 5 As shown, the interface mechanism 6 includes an interface tube 61 that passes through the tank body 1 and is connected to the bottom of the airbag 2. The interior of the interface tube 61 is provided with a pressure relief tube 64 located inside the airbag 2 through a bracket group. The pressure relief tube 64 is provided with a pressure relief hole 65. There are several pressure relief holes 65 and they are evenly arranged along the height direction of the pressure relief tube 64. The size of the pressure relief holes 65 increases from bottom to top along the height direction of the pressure relief tube 64.

[0029] Among them, the pressure relief pipe 64 is arranged inside the airbag 2 along the height direction of the airbag 2. When rapid pressure relief is required, such as when the system pressure suddenly increases or emergency shutdown is required, the pressure relief holes 65 on the pressure relief pipe 64 cooperate with the interface pipe 61 to provide more pressure relief channels. The size of the pressure relief holes 65 increases from bottom to top along the height direction of the pressure relief pipe 64, which helps to maintain a relatively stable pressure during the liquid pressure relief process, reduce the impact of pressure fluctuations on the bladder pressure tank, and improve stability during pressure relief.

[0030] It should be noted that the bracket group includes a first bracket 62 and a second bracket 63 arranged in the interface pipe 61, and a threaded tube 641 coaxially arranged therewith is provided at the bottom of the pressure relief pipe 64, and a mounting nut 642 abutting against the bottom of the second bracket 63 is provided on the threaded tube 641. The first bracket 62 and the second bracket 63 are both composed of a clamp and three fixing rods, wherein the clamp size of the first bracket 62 is larger than the clamp size of the second bracket 63, the clamp of the first bracket 62 is sleeved on the pressure relief pipe 64, and the clamp of the second bracket 63 is sleeved on the threaded tube 641 at the bottom of the pressure relief pipe 64. When the mounting nut 642 on the threaded tube 641 is removed, the pressure relief pipe 64 can be disassembled, which is convenient for its maintenance and repair.

[0031] Specifically, such as Figure 4 and Figure 6As shown, the interface mechanism 6 also includes a filter assembly 66 arranged in the interface tube 61 below the pressure relief tube 64, and the filter assembly 66 includes a positioning plate 661, a filter screen 663 is provided on the positioning plate 661 through a positioning rod 662, a first spring 664 is provided on the positioning rod 662, and a locking nut 666 is provided at the bottom of the positioning rod 662 through a threaded end 665.

[0032] Among them, the positioning plate 661 is arranged in a ring shape, and the filter 663 is arranged on the positioning plate 661 through the positioning rod 662. The filter 663 can be used to filter the liquid entering the airbag 2. Since the tank body 1 is arranged as an integral whole, the airbag 2 inside is inconvenient to be removed. In order to prevent impurities in the liquid from damaging the airbag 2, the liquid entering the airbag 2 can be filtered through the filter 663. The first spring 664 arranged on both sides of the filter 663 on the positioning rod 662 can make the filter 663 vibrate after the pressure is released, thereby vibrating the impurities filtered off the filter 663, avoiding clogging of the filter 663 and improving the filtering effect of the filter 663. Moreover, when the filter 663 is disassembled, after the locking nut 666 on the threaded end 665 is removed, the filter 663 can be quickly popped out under the action of the first spring 664, which facilitates the disassembly of the filter 663.

[0033] Specifically, such as Figure 1 and Figure 7 As shown, a support rod 72 is provided at the bottom of the support leg 7 through a mounting slot 71, a foot pad 73 is provided at the bottom of the support rod 72, a second spring 74 is provided on the support rod 72 between the support leg 7 and the foot pad 73, and a buffer pad 75 is provided inside the mounting slot 71.

[0034] Among them, the support rod 72 can move a certain distance in the installation groove 71 of the support leg 7. Cooperating with the second spring 74 and the buffer pad 75, the support leg 7 can have excellent shock-absorbing and buffering performance, thereby preventing the pressure tank from shaking and tipping over due to vibration during use, greatly improving the stability and safety of the pressure tank.

[0035] 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 bladder-type pressure tank with a movable inner layer, comprising an air bag (2) arranged inside a tank body (1), an exhaust valve (3) connected to the air bag (2) arranged on the top of the tank body (1), and an inflation nozzle (4) connected to the inside of the tank body (1), a pressure gauge (5) arranged on one side of the tank body (1), and a support leg (7) arranged on the bottom of the tank body (1), characterized in that: The bottom of the tank body (1) is provided with an interface mechanism (6) that is in communication with the air bag (2) and is capable of improving the pressure relief efficiency and stability of the pressure tank.

2. The inner layer movable bladder type pressure tank according to claim 1, characterized in that: The interface mechanism (6) comprises an interface tube (61) that penetrates the tank body (1) and is connected to the bottom of the airbag (2); a pressure relief tube (64) located inside the airbag (2) is provided inside the interface tube (61) through a bracket assembly; a pressure relief hole (65) is provided on the pressure relief tube (64).

3. The bladder-type pressure tank with a movable inner layer according to claim 2, characterized in that: The number of the pressure relief holes (65) is several and they are evenly arranged on the pressure relief pipe (64) along its height direction, and the sizes of the pressure relief holes (65) increase from bottom to top along the height direction of the pressure relief pipe (64).

4. The inner layer movable bladder type pressure tank according to claim 3, characterized in that: The bracket assembly comprises a first bracket (62) and a second bracket (63) arranged in the interface pipe (61); a threaded tube (641) coaxially arranged with the pressure relief pipe (64) is provided at the bottom thereof, and a mounting nut (642) abutting against the bottom of the second bracket (63) is provided on the threaded tube (641).

5. The bladder-type pressure tank with a movable inner layer according to claim 2, characterized in that: The interface mechanism (6) further comprises a filter assembly (66) disposed in the interface pipe (61) and below the pressure relief pipe (64); The filter assembly (66) comprises a positioning plate (661), and a filter screen (663) is provided on the positioning plate (661) via a positioning rod (662).

6. The bladder-type pressure tank with a movable inner layer according to claim 5, characterized in that: The positioning rod (662) is provided with a first spring (664), and the bottom of the positioning rod (662) is provided with a locking nut (666) through a threaded end (665).

7. The bladder-type pressure tank with a movable inner layer according to claim 1, characterized in that: A support rod (72) is provided at the bottom of the support leg (7) through a mounting groove (71), a foot pad (73) is provided at the bottom of the support rod (72), a second spring (74) is provided on the support rod (72) at a position between the support leg (7) and the foot pad (73), and a buffer pad (75) is provided inside the mounting groove (71).

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