Diaphragm type energy accumulator pressure balancing device
By introducing a heat dissipation and pressure regulation mechanism into the diaphragm accumulator, and utilizing a combination of sensors and pressure relief valves, precise regulation of diaphragm pressure and heat dissipation are achieved, solving the problem of diaphragm rupture and improving system safety and equipment stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-15
- Publication Date
- 2026-04-14
AI Technical Summary
Existing diaphragm accumulators struggle to achieve pressure balance between the gas and liquid chambers when pressure changes rapidly, leading to an increased pressure difference across the diaphragm. This can cause fatigue wear and rupture, affecting the stability and reliability of the hydraulic system.
A pressure balancing device for a diaphragm accumulator was designed, comprising a heat dissipation mechanism and a pressure regulating mechanism. The device utilizes a liquid pressure relief valve, a gas pressure relief valve, a liquid pressure sensor, and a gas pressure sensor to monitor the pressure in real time. The opening and closing of the pressure relief valve are precisely controlled via a control panel. Combined with a return pipe to guide excess liquid and gas, the device prevents diaphragm rupture and provides heat dissipation through a fan.
It achieves precise control of the internal and external pressure of the diaphragm body, prevents rupture, improves the safety and stability of the system, extends the service life of the equipment, and realizes the rational utilization and recycling of resources.
Smart Images

Figure CN224120449U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of energy storage technology, and in particular to a pressure balancing device for a diaphragm energy storage device. Background Technology
[0002] An accumulator is an energy storage device in a hydraulic or pneumatic system. It converts energy in the system into compressed or potential energy at appropriate times and stores it. When the system needs it, it releases the compressed or potential energy by converting it into hydraulic or pneumatic energy to replenish the system. When the system pressure increases instantaneously, it can absorb this energy to ensure the overall system pressure remains normal. Diaphragm accumulators offer unique advantages such as excellent sealing and high energy storage efficiency.
[0003] Existing accumulators suffer from rapid pressure changes, making it difficult for the gas and liquid chambers to quickly reach pressure balance. This increases the pressure difference across the diaphragm, and the diaphragm, under this unbalanced pressure condition for a long time, is prone to fatigue wear and even rupture, which in turn affects the normal operation of the accumulator and reduces the stability and reliability of the hydraulic system. Therefore, there is a problem that it is not easy to protect the diaphragm. Utility Model Content
[0004] (a) Technical problems to be solved
[0005] To address the problems existing in the prior art, this utility model provides a pressure balancing device for a diaphragm accumulator.
[0006] (II) Technical Solution
[0007] To achieve the above objectives, this utility model provides the following technical solution: a diaphragm accumulator pressure balancing device, comprising an accumulator housing, a heat dissipation mechanism and a pressure regulating mechanism fixedly connected to the outer surface of the accumulator housing, and a diaphragm body provided on the inner wall of the accumulator housing. The heat dissipation mechanism includes a fixed frame and a support frame fixedly connected to the outer surface of the accumulator housing, a fan fixedly connected to the outer surface of the fixed frame, and a gap between the outer surface of the fan and the outer surface of the accumulator housing. The pressure regulating mechanism includes multiple sets of mounting seats fixedly connected to the outer surface of the accumulator housing, and a liquid pressure relief valve, a gas pressure sensor, and a liquid pressure sensor threadedly connected to the outer surface of the mounting seats.
[0008] In a preferred embodiment of the diaphragm accumulator pressure balancing device of the present invention, the liquid pressure relief valve and the detection end of the liquid pressure sensor are disposed inside the diaphragm body.
[0009] By adopting the above technical solution, the liquid pressure relief valve facilitates the detection of liquid pressure inside the diaphragm body, and the liquid pressure sensor facilitates the discharge of excess liquid from the diaphragm body.
[0010] In a preferred embodiment of the diaphragm accumulator pressure balancing device of this utility model, the detection ends of the gas pressure sensor and the gas pressure relief valve are disposed on the inner wall of the accumulator housing.
[0011] By adopting the above technical solution, the gas pressure sensor facilitates the detection of gas pressure inside the accumulator casing, and the gas pressure relief valve facilitates the discharge of excess gas.
[0012] In a preferred embodiment of the diaphragm accumulator pressure balancing device of this utility model, the output ends of both the liquid pressure relief valve and the gas pressure relief valve are fixedly connected to a return pipe.
[0013] By adopting the above technical solution, excess liquid and gas can be easily guided into the corresponding storage shell through the return pipe.
[0014] In a preferred embodiment of the pressure balancing device for a diaphragm accumulator according to this utility model, a connecting block is fixedly connected to the outer surface of the fixed frame, and a control panel is fixedly connected to the outer surface of the connecting block, with a gap between the outer surface of the control panel and the outer surface of the fixed frame.
[0015] By adopting the above technical solution, the fan is activated, and the fan generates an airflow that blows towards the outer surface of the control panel, thereby facilitating heat dissipation for the control panel.
[0016] In a preferred embodiment of the diaphragm accumulator pressure balancing device of this utility model, the outer surface of the control panel is electrically connected to the outer surfaces of the liquid pressure relief valve, the gas pressure sensor, the gas pressure relief valve, and the liquid pressure sensor respectively via wires.
[0017] By adopting the above technical solution, the liquid pressure relief valve, gas pressure sensor, gas pressure relief valve and liquid pressure sensor can be easily adjusted through the control panel, thereby facilitating the adjustment of the pressure intensity inside and outside the diaphragm body and preventing the diaphragm body from rupturing.
[0018] (III) Beneficial Effects
[0019] This invention provides a pressure balancing device for a diaphragm accumulator. It has the following beneficial effects:
[0020] 1. The pressure regulation mechanism uses high-precision sensors to monitor the pressure inside and outside the diaphragm body in real time, and the control panel precisely controls the opening and closing of the pressure relief valve to adjust the pressure intensity in a timely manner. This precise pressure regulation function can effectively prevent the diaphragm body from rupturing due to excessive pressure, ensuring the normal operation of the accumulator and improving the safety and stability of the system. At the same time, the design of the return pipe guides excess liquid and gas to the storage shell, realizing the rational utilization and recycling of resources.
[0021] 2. The airflow generated by the fan dissipates heat from the control panel and accumulator housing, effectively reducing the equipment's operating temperature, preventing performance degradation and malfunctions caused by overheating, extending the equipment's service life, and improving the stability and reliability of equipment operation. Attached Figure Description
[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments 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.
[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0024] Figure 2 This is a front cross-sectional view of the overall structure of this utility model;
[0025] Figure 3 This is a side cross-sectional view of the overall structure of this utility model.
[0026] In the diagram, 1 is the accumulator housing; 101 is the diaphragm body; 2 is the heat dissipation mechanism; 201 is the fixing frame; 202 is the support frame; 203 is the connecting block; 204 is the control panel; 205 is the fan; 3 is the pressure regulating mechanism; 301 is the liquid pressure relief valve; 302 is the gas pressure sensor; 303 is the gas pressure relief valve; 304 is the liquid pressure sensor; 305 is the wire; and 306 is the mounting base. Detailed Implementation
[0027] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.
[0028] Example 1
[0029] Reference Figure 1 , Figure 2 and Figure 3This is the first embodiment of the present invention. This embodiment provides a diaphragm accumulator pressure balancing device, including an accumulator housing 1. A heat dissipation mechanism 2 and a pressure regulating mechanism 3 are fixedly connected to the outer surface of the accumulator housing 1. A diaphragm body 101 is provided on the inner wall of the accumulator housing 1. The pressure regulating mechanism 3 includes multiple sets of mounting seats 306 fixedly connected to the outer surface of the accumulator housing 1. A liquid pressure relief valve 301, a gas pressure sensor 302, a gas pressure relief valve 303, and a liquid pressure sensor 304 are threadedly connected to the outer surface of the mounting seats 306.
[0030] Specifically, the detection ends of the liquid pressure relief valve 301 and the liquid pressure sensor 304 are located inside the diaphragm body 101, while the detection ends of the gas pressure sensor 302 and the gas pressure relief valve 303 are located on the inner wall of the accumulator housing 1. The output ends of the liquid pressure relief valve 301 and the gas pressure relief valve 303 are both fixedly connected to a return pipe.
[0031] Furthermore, the pressure regulating mechanism 3 utilizes high-precision sensors to monitor the pressure inside and outside the diaphragm body 101 in real time, and precisely controls the opening and closing of the pressure relief valve via the control panel 204 to adjust the pressure intensity in a timely manner. This precise pressure regulation function effectively prevents the diaphragm body 101 from rupturing due to excessive pressure, ensuring the normal operation of the accumulator and improving the safety and stability of the system. Simultaneously, the design of the reflux pipe guides excess liquid and gas to the storage shell, achieving rational utilization and recovery of resources.
[0032] Example 2
[0033] Reference Figure 1 , Figure 2 and Figure 3 This is the second embodiment of the present invention. This embodiment is based on the previous embodiment. The heat dissipation mechanism 2 includes a fixed frame 201 and a support frame 202 that are fixedly connected to the outer surface of the accumulator housing 1. A fan 205 is fixedly connected to the outer surface of the fixed frame 201. A gap is left between the outer surface of the fan 205 and the outer surface of the accumulator housing 1.
[0034] A connecting block 203 is fixedly connected to the outer surface of the fixed frame 201. A control panel 204 is fixedly connected to the outer surface of the connecting block 203. There is a gap between the outer surface of the control panel 204 and the outer surface of the fixed frame 201. The outer surface of the control panel 204 is electrically connected to the outer surfaces of the liquid pressure relief valve 301, the gas pressure sensor 302, the gas pressure relief valve 303, and the liquid pressure sensor 304 respectively through wires 305.
[0035] Furthermore, the airflow generated by the fan 205 dissipates heat from the control panel 204 and the accumulator housing 1, effectively reducing the operating temperature of the equipment, avoiding performance degradation and malfunctions caused by overheating, extending the service life of the equipment, and improving the stability and reliability of equipment operation.
[0036] Working principle: After the fan 205 on the fixed frame 201 is started, it will generate an airflow towards the control panel 204. Since there are gaps between the fan 205 and the accumulator housing 1, and between the control panel 204 and the fixed frame 201, the air can flow smoothly, carrying away the heat from the surface of the control panel 204, thus achieving heat dissipation and ensuring that the equipment operates at a suitable temperature. The liquid pressure sensor 304 and the gas pressure sensor 302 detect the liquid pressure in the diaphragm body 101 and the gas pressure in the accumulator housing 1 in real time, respectively. The detection end of the liquid pressure sensor 304 is placed inside the diaphragm body 101, and the detection end of the gas pressure sensor 302 is located on the inner wall of the accumulator housing 1. They will detect... The pressure signal is converted into an electrical signal and transmitted to the control panel 204. After receiving the pressure signal from the sensor, the control panel 204 compares it with the preset pressure range. If the liquid pressure exceeds the set range, the control panel 204 controls the liquid pressure relief valve 301 to open, guiding the excess liquid through the return pipe to the corresponding storage shell, so that the liquid pressure returns to the normal range. Similarly, when the gas pressure is abnormal, the control panel 204 controls the gas pressure relief valve 303 to open, discharging the excess gas through the return pipe to the corresponding storage shell, ensuring stable gas pressure. In this way, the pressure intensity inside and outside the diaphragm body 101 can be precisely controlled, preventing the diaphragm body 101 from rupturing due to excessive pressure.
[0037] It should be noted that in this paper, relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.
Claims
1. A pressure balancing device for a diaphragm accumulator, comprising an accumulator housing (1), characterized in that: The outer surface of the accumulator housing (1) is fixedly connected to a heat dissipation mechanism (2) and a pressure regulating mechanism (3), and the inner wall of the accumulator housing (1) is provided with a diaphragm body (101). The heat dissipation mechanism (2) includes a fixed frame (201) and a support frame (202) fixedly connected to the outer surface of the accumulator housing (1). A fan (205) is fixedly connected to the outer surface of the fixed frame (201), and a gap is left between the outer surface of the fan (205) and the outer surface of the accumulator housing (1). The pressure regulating mechanism (3) includes multiple sets of mounting bases (306) fixedly connected to the outer surface of the accumulator housing (1). The outer surface of the mounting base (306) is threaded with a liquid pressure relief valve (301), a gas pressure sensor (302), a gas pressure relief valve (303), and a liquid pressure sensor (304).
2. The pressure balancing device for a diaphragm accumulator according to claim 1, characterized in that: The detection ends of the liquid pressure relief valve (301) and the liquid pressure sensor (304) are located inside the diaphragm body (101).
3. The pressure balancing device for a diaphragm accumulator according to claim 2, characterized in that: The detection ends of the gas pressure sensor (302) and the gas pressure relief valve (303) are located on the inner wall of the accumulator housing (1).
4. The pressure balancing device for a diaphragm accumulator according to claim 3, characterized in that: The output ends of both the liquid pressure relief valve (301) and the gas pressure relief valve (303) are fixedly connected to return pipes.
5. The pressure balancing device for a diaphragm accumulator according to claim 4, characterized in that: A connecting block (203) is fixedly connected to the outer surface of the fixed frame (201), and a control panel (204) is fixedly connected to the outer surface of the connecting block (203). A gap is left between the outer surface of the control panel (204) and the outer surface of the fixed frame (201).
6. The pressure balancing device for a diaphragm accumulator according to claim 5, characterized in that: The outer surface of the control panel (204) is electrically connected to the outer surfaces of the liquid pressure relief valve (301), the gas pressure sensor (302), the gas pressure relief valve (303), and the liquid pressure sensor (304) respectively via wires (305).