Energy accumulator with leak hunting function

Abstract

The utility model discloses an energy accumulator with a leak hunting function, and relates to the technical field of piston energy accumulators. Comprising a cylinder body, two ends of the cylinder body are respectively provided with an oil port end cover and an air port end cover, the air port end cover is provided with an inflation valve, an inner cavity of the cylinder body is movably provided with two pistons, the two pistons are connected through a piston rod, and the inner cavity of the cylinder body is located between the two pistons to form a leakage detection cavity. The energy accumulator with the leakage detection function comprises a cylinder body, a leakage detection cavity is formed in the cylinder body, a monitoring assembly matched with the leakage detection cavity to conduct gas leakage detection is installed on the cylinder body, the monitoring assembly is a pressure gauge, and the pressure gauge matched with the leakage detection cavity is installed on the cylinder body. When the air pressure in the leakage detection cavity formed between the two pistons changes, the monitoring assembly can monitor the air pressure so as to realize the leakage detection function.

Description

Technical Field

[0001] The utility model relates to the technical field of piston accumulators, in particular to an accumulator with a leak detection function. Background Art

[0002] Piston accumulators use a piston to separate gas from liquid. A seal between the piston and the inner wall of the cylindrical accumulator prevents oil oxidation. These accumulators offer advantages such as long life, light weight, easy installation, simple structure, and convenient maintenance. They are widely used in hydraulic equipment, heavy machinery, ships, and other industrial fields, enabling smooth control and regulation of power systems.

[0003] Piston accumulators often operate under high-frequency conditions, with air chamber temperatures potentially reaching as high as 80°C. The combined sealing rings within the inflatable structure are made from a vulcanized rubber and steel ring. Under high-temperature conditions, air pressure leaks are prone to occur, causing system failure and even safety incidents. Existing piston accumulators lack leak detection capabilities. Utility Model Content

[0004] The utility model provides an accumulator with a leak detection function to solve the problems in the background technology.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: an accumulator with a leak detection function, comprising a cylinder body, wherein an oil port end cover and a gas port end cover are respectively installed at both ends of the cylinder body, an inflation valve is provided on the gas port end cover, two pistons are movably installed in the inner cavity of the cylinder body, and the two pistons are connected by a piston rod. The inner cavity of the cylinder body is located between the two pistons to form a leakage detection cavity, and a monitoring component is installed on the cylinder body to cooperate with the leakage detection cavity to perform gas leakage detection.

[0006] Furthermore, the monitoring component is a pressure gauge, and a pressure gauge that cooperates with the leakage detection chamber is installed on the cylinder body.

[0007] Furthermore, guide grooves are provided on both pistons, and guide belts are installed in the guide grooves.

[0008] Furthermore, sealing grooves are provided on the two pistons, and sealing members are installed in the sealing grooves.

[0009] Furthermore, the gas port end cover and the oil port end cover are both threadedly connected to the cylinder body.

[0010] Furthermore, a first assembly groove is provided on both the air port end cover and the oil port end cover, and a retaining ring and an O-ring are installed in the first assembly groove.

[0011] Furthermore, the air port end cover and the oil port end cover are both provided with a second assembly groove, and a grid ring is installed in the second assembly groove.

[0012] Furthermore, an end cover protective cover is installed on the gas port end cover.

[0013] Compared with the prior art, the present invention provides an accumulator with a leak detection function, which has the following beneficial effects: when the piston close to the gas port end cover of the accumulator with a leak detection function leaks, the air pressure in the leakage detection chamber formed between the two pistons changes, and the gas pressure can be monitored by the monitoring component to realize the leak detection function. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural diagram of the utility model;

[0015] Figure 2 This is a schematic diagram of the planar structure of the utility model;

[0016] Figure 3 This is an enlarged schematic diagram of point A of the present utility model;

[0017] Figure 4 This is an enlarged schematic diagram of point B of the present utility model;

[0018] Figure 5 It is an enlarged schematic diagram of point C of the present invention.

[0019] In the figure: 1. Cylinder body; 2. Air port end cover; 3. Oil port end cover; 4. Piston; 5. Piston rod; 6. Leak detection chamber; 7. Pressure gauge; 8. Sealing groove; 9. Sealing element; 10. Guide groove; 11. Guide belt; 12. First assembly groove; 13. Retaining ring; 14. O-ring; 15. Second assembly groove; 16. Gly ring; 17. Inflating valve; 18. End cover protective cover. DETAILED DESCRIPTION

[0020] The following will be combined with the 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.

[0021] See also Figure 1-5The utility model discloses an accumulator with a leak detection function, comprising a cylinder body 1, with an oil port end cover 3 and a gas port end cover 2 respectively installed at both ends of the cylinder body 1, and an inflation valve 17 provided on the gas port end cover 2. Two pistons 4 are movably installed in the inner cavity of the cylinder body 1, and the two pistons 4 are connected by a piston rod 5. The inner cavity of the cylinder body 1 is located between the two pistons 4 to form a leakage detection chamber 6. A monitoring component is installed on the cylinder body 1 to cooperate with the leakage detection chamber 6 to perform gas leakage detection. In this accumulator with a leak detection function, when the piston 4 close to the gas port end cover 2 leaks, the air pressure in the leakage detection chamber 6 formed between the two pistons 4 changes. The gas pressure can be monitored by the monitoring component to achieve the leak detection function.

[0022] An end cover protection cover 18 is installed on the gas port end cover 2.

[0023] Specifically, the monitoring component is a pressure gauge 7 , and the cylinder body 1 is equipped with the pressure gauge 7 that cooperates with the leakage detection chamber 6 .

[0024] In this embodiment, the pressure gauge 7 cooperates with a corresponding single chip microcomputer.

[0025] Because the piston accumulator is often in high-frequency working conditions, the gas cavity temperature is high, which will affect the sealing effect of the piston 4. When the piston 4 close to the gas port end cover 2 is not sealed, and gas enters the leakage detection chamber 6, the air pressure in the leakage detection chamber 6 changes. At this time, the pressure gauge 7 can detect the pressure change to remind you that maintenance operations are needed.

[0026] A nylon sealing ring is provided at the connection between the pressure gauge 7 and the cylinder body 1. The pressure gauge 7 is located where the two pistons 4 cannot reach the pressure during their stroke. That is, when oil is introduced into the oil port end cover 3, causing the two pistons 4 to move toward the gas port end cover 2 and move to the maximum stroke, the pistons 4 close to the oil port end cover 3 cannot move to the connection between the pressure gauge 7 and the cylinder body 1. When air is introduced into the gas port end cover 2, causing the two pistons 4 to move toward the oil port end cover 3 and move to the maximum stroke, the pistons 4 close to the gas port end cover 2 cannot move to the connection between the pressure gauge 7 and the cylinder body 1.

[0027] Specifically, a guide groove 10 is formed on each of the two pistons 4 , and a guide belt 11 is installed in the guide groove 10 .

[0028] In this embodiment, the guide belt 11 is provided to reduce the wear of the piston 4 .

[0029] Specifically, sealing grooves 8 are formed on the two pistons 4 , and sealing members 9 are installed in the sealing grooves 8 .

[0030] In this embodiment, the sealing member 9 may be a C-shaped combined sealing ring, or other sealing rings.

[0031] Specifically, the gas port end cover 2 and the oil port end cover 3 are both threadedly connected to the cylinder body 1 .

[0032] The air port end cover 2 and the oil port end cover 3 are both provided with a first assembly groove 12 , in which a retaining ring 13 and an O-ring 14 are installed.

[0033] The gas port end cover 2 and the oil port end cover 3 are both provided with a second assembly groove 15 , and a grid ring 16 is installed in the second assembly groove 15 .

[0034] In this embodiment, a retaining ring 13 and an O-ring 14 are installed in the first assembly groove 12 to play a primary sealing role, while a Gly ring 16 is installed in the second assembly groove 15 to play a secondary sealing role to ensure the stability of energy storage.

[0035] To sum up, in the accumulator with leak detection function, when the piston 4 close to the gas port end cover 2 leaks, the air pressure in the leakage detection chamber 6 formed between the two pistons 4 changes, and the gas pressure can be monitored by the monitoring component to realize the leak detection function.

[0036] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An accumulator with a leak detection function, comprising a cylinder (1), characterized in that: An oil port end cover (3) and an air port end cover (2) are respectively installed at both ends of the cylinder body (1), and an air port end cover (2) is provided on the air port end cover (2). Two pistons (4) are movably installed in the inner cavity of the cylinder body (1), and the two pistons (4) are connected by a piston rod (5). The inner cavity of the cylinder body (1) is located between the two pistons (4) to form a leakage detection cavity (6), and a monitoring component is installed on the cylinder body (1) to cooperate with the leakage detection cavity (6) to perform gas leakage detection.

2. The accumulator with a leak detection function according to claim 1, characterized in that: The monitoring component is a pressure gauge (7), and the pressure gauge (7) matched with the leakage detection chamber (6) is installed on the cylinder body (1).

3. The accumulator with a leak detection function according to claim 1, characterized in that: A guide groove (10) is provided on each of the two pistons (4), and a guide belt (11) is installed in the guide groove (10).

4. The accumulator with a leak detection function according to claim 1, characterized in that: A sealing groove (8) is provided on the two pistons (4), and a sealing member (9) is installed in the sealing groove (8).

5. The accumulator with a leak detection function according to claim 1, characterized in that: The air port end cover (2) and the oil port end cover (3) are both threadedly connected to the cylinder body (1).

6. The accumulator with a leak detection function according to claim 5, characterized in that: The air port end cover (2) and the oil port end cover (3) are both provided with a first assembly groove (12), and a retaining ring (13) and an O-shaped sealing ring (14) are installed in the first assembly groove (12).

7. The accumulator with a leak detection function according to claim 6, characterized in that: The air port end cover (2) and the oil port end cover (3) are both provided with a second assembly groove (15), and a grid ring (16) is installed in the second assembly groove (15).

8. The accumulator with a leak detection function according to claim 1, characterized in that: An end cover protection cover (18) is installed on the gas port end cover (2).

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