Device for detecting bursting strength of filter

Abstract

The utility model discloses a filter bursting strength detection device, and belongs to the technical field of filter production equipment. The device for detecting the bursting strength of the filter comprises a pressure container tank, wherein the upper part of the pressure container tank is detachably connected with a sealing cover plate in a sealing manner; a compressed air inlet, a safety relief valve and a first pressure sensor are arranged on the side wall of the pressure container tank; an exhaust pipe communicated with the pressure container tank is arranged on the sealing cover plate, and a second pressure sensor and a pneumatic valve for controlling the exhaust pipe to be opened and closed are arranged on the exhaust pipe. According to the utility model, the bursting strength of the filter support framework is detected by rapidly releasing through the pneumatic valve and measuring the pressure difference between the inner side and the outer side of the filter through the cooperation of the first pressure sensor and the second pressure sensor, the structure is simple, the design is reasonable, the use is convenient, the detection efficiency can be effectively improved, the test precision is high, and the detection result is accurate and reliable.

Description

TECHNICAL FIELD

[0001] The utility model relates to filter production equipment technical field, concretely relates to a filter burst strength detection device. BACKGROUND

[0002] With the rapid development of social economy, the use of oil-gas separation filter has become one of the more common items in people's daily life, and the oil-gas separation filter is a device for separating gas in lubricating oil to ensure that the lubricating system can work normally. The oil-gas separation filter is composed of a metal end cover, a metal support skeleton, sealing glue and a filter separation filter material, and its main function is to filter out the micro oil droplets and solid particles in the oil-gas mixture in the air compressor system to meet the requirement of clean gas. During use, the inside and outside of the filter material will have a pressure difference, and the size of the pressure difference is related to factors such as flow, pressure, lubricating oil, pollutants and airflow pulse. When the pressure difference exceeds the burst strength of the filter metal support skeleton, the filter will have a structural damage quality problem, resulting in filter failure. Therefore, it is necessary to detect the burst strength of the filter before leaving the factory. However, there is no burst strength detection device for the filter on the market at present. SUMMARY

[0003] In order to overcome the shortcomings of the prior art, the purpose of the utility model is to provide a filter burst strength detection device, which is simple in structure, reasonable in design, convenient to use, can effectively improve the detection efficiency, and has high test precision and accurate and reliable detection results.

[0004] To solve the above problems, the technical scheme adopted by the utility model is as follows:

[0005] A filter burst strength detection device, comprising a pressure vessel tank, a sealing cover plate being detachably and sealingly connected to the upper part of the pressure vessel tank; a compressed air inlet, a safety pressure relief valve and a first pressure sensor being arranged on the side wall of the pressure vessel tank; an exhaust pipe being arranged on the sealing cover plate and being in communication with the pressure vessel tank, a second pressure sensor and a pneumatic valve being arranged on the exhaust pipe and being used for controlling the opening and closing of the exhaust pipe.

[0006] As a preferred embodiment of the utility model, a pressure relief pipe is arranged on the side wall of the pressure vessel tank and is in communication with the pressure vessel tank, the safety pressure relief valve is in communication with the pressure relief pipe, and the first pressure sensor is installed on the pressure relief pipe and is located between the safety pressure relief valve and the pressure vessel tank.

[0007] As a preferred embodiment of the utility model, the second pressure sensor is installed on the exhaust pipe and is located between the pneumatic valve and the sealing cover plate.

[0008] As the preferred embodiment of the utility model, the sealing cover plate is provided with a sealing ring.

[0009] As the preferred embodiment of the utility model, the sealing cover plate is detachably sealed and connected with the pressure container tank through screws or bolts.

[0010] As the preferred embodiment of the utility model, the detection device further comprises an electric hoist, which is detachably connected with the sealing cover plate.

[0011] As the preferred embodiment of the utility model, the detection device further comprises a standing platform, which is arranged on one side of the pressure container tank.

[0012] As the preferred embodiment of the utility model, the detection device further comprises a high-precision pressure difference reading instrument, which is respectively connected with the first pressure sensor and the second pressure sensor.

[0013] Compared with the prior art, the utility model has the beneficial effects that:

[0014] The filter burst strength detection device provided by the utility model can effectively improve the detection efficiency, has high test precision, accurate and reliable detection results, is helpful for scientific design of the size and structural strength of the filter support framework, and can further improve the burst strength of the filter, prolong the service life of the filter product, and is beneficial to improving the market competitiveness and brand influence of the filter product. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 The utility model discloses a filter burst strength detection device structure schematic view.

[0016] The number of the drawing is explained: 1, pressure container tank, 2, sealing cover plate, 3, compressed air inlet, 4, pressure relief pipe, 5, safety pressure relief valve, 6, first pressure sensor, 7, exhaust pipe, 8, pneumatic valve, 9, second pressure sensor, 10, electric hoist, 11, standing platform. DETAILED DESCRIPTION

[0017] The utility model will be further explained in detail in combination with the drawings and specific embodiment.

[0018] As Figure 1As shown, the filter burst strength detection device provided by the utility model includes a pressure vessel tank 1 for mounting the filter to be detected, the pressure vessel tank 1 has a mounting cavity for accommodating the filter to be detected, and the pressure resistance value of the pressure vessel tank 1 is 13 bar. The upper part of the pressure vessel tank 1 is detachably and sealingly connected with a sealing cover plate 2. In order to improve the air tightness of the detection device, a sealing ring is arranged on the sealing cover plate 2, and the sealing ring is in interference fit with the inner wall of the pressure vessel tank 1. Preferably, the sealing cover plate 2 is a flange sealing cover plate 2. In order to improve the detection efficiency, the sealing cover plate 2 is detachably and sealingly connected with the pressure vessel tank 1 through screws or bolts and the like. A compressed air inlet 3 is arranged on the side wall of the pressure vessel tank 1, the other end of the compressed air inlet 3 is connected with an air compressor, and the compressed air inlet 3 is used for delivering compressed air to the pressure vessel tank 1, so that the pressure value in the tank reaches a preset value, and then the burst strength detection is performed. A pressure relief pipe 4 in communication with the pressure vessel tank 1 is arranged at the middle position of the side wall of the pressure vessel tank 1, and a safety relief valve 5 serving as a safety device of the pressure vessel tank 1 is arranged at the position close to the outlet end of the pressure relief pipe 4. When the pressure in the tank reaches 10 bar, the safety relief valve 5 is opened to release pressure, so as to prevent the pressure in the tank from being too high and exceeding the tank body bearing value of the pressure vessel tank 1. A first pressure sensor 6 is arranged at the position corresponding to the safety relief valve 5 and the pressure vessel tank 1, and the first pressure sensor 6 is used for detecting the pressure value outside the filter at the moment of releasing the compressed air in the tank. An exhaust pipe 7 in communication with the pressure vessel tank 1 is arranged on the sealing cover plate 2, a pneumatic valve 8 for controlling the opening and closing of the exhaust pipe 7 is arranged at the position close to the exhaust port of the exhaust pipe 7, the compressed air in the tank is released instantaneously by rapidly opening and closing the pneumatic valve 8, so as to form a large pressure difference value between the inside and outside of the filter. A second pressure sensor 9 is arranged at the position corresponding to the pneumatic valve 8 and the sealing cover plate 2, and the second pressure sensor 9 is used for detecting the pressure value inside the filter at the moment of releasing the compressed air in the tank. The compressed air inside the filter is released instantaneously through the exhaust pipe 7 by the pneumatic valve 8, and the inside pressure value instantaneously drops to zero. Due to the interception effect of the high-precision filter material, the pressure outside the filter is slowly released, so that a 5-bar instantaneous pressure difference is formed between the inside and outside of the filter. The burst strength of the filter support framework can be detected by using the pressure difference. It can be seen that the utility model has the advantages of simple structure, reasonable design, convenient use, high detection efficiency, high test precision, accurate and reliable detection result, scientific design of the size and structural strength of the filter support framework, improvement of the burst strength of the filter, prolongation of the service life of the filter product, and improvement of the market competitiveness and brand influence of the filter product.

[0019] In some embodiments, since the sealing cover plate 2 is thick and heavy to achieve the same pressure resistance value as the pressure container tank 1, an electric hoist 10 for assisting the disassembly of the sealing cover plate 2 is arranged beside the pressure container tank 1, and the electric hoist 10 is detachably connected with the sealing cover plate 2, which is beneficial to further improve the disassembly efficiency of the sealing cover plate 2, save labor cost, and further improve the detection efficiency. Specifically, the electric hoist 10 comprises a motor, a hoisting bracket with a pulley, and a hook, the hook is connected with the motor through a cable wound on the pulley, and the hook is connected with the sealing cover plate 2 when the sealing cover plate 2 is disassembled. Further, in order to facilitate the disassembly of the sealing cover plate 2, the detection device further comprises a standing platform 11 arranged on one side of the pressure container tank 1 or sleeved on the outer side of the pressure container tank 1, which is beneficial to improve the detection efficiency. Further, the utility model further comprises a high-precision pressure difference reading instrument (not shown in the figure), which is signal connected with the first pressure sensor 6 and the second pressure sensor 9 respectively, and records the pressure difference value 3 times per second through the high-precision pressure difference reading instrument, which greatly improves the detection accuracy and makes the detection result more accurate.

[0020] The use process of the detection device is as follows: the sealing cover plate 2 is moved away by the electric hoist 10, the filter to be detected is installed in the pressure container tank 1, and then the flange sealing cover plate 2 is moved back to the original position by the electric hoist 10, and the sealing is tightened by a few screws. The pneumatic valve 8 is closed, compressed air is input into the pressure container tank 1 from the compressed air inlet 3, the pressure value in the tank reaches 5bar, the input of compressed air is stopped, the pressure in the tank is kept at 5bar, the first pressure sensor 6 and the second pressure sensor 9 are opened, and the pressure values on the inside and outside of the filter are recorded. The pneumatic valve 8 is opened for instantaneous release, the compressed air in the filter is released through the exhaust pipe 7 for instantaneous release, the pressure value is instantaneously reduced to zero, and due to the interception effect of the high-precision filter material, the pressure on the outside of the filter is slowly released, so that a 5bar instantaneous pressure difference is formed between the inside and outside of the filter, and the breaking strength of the filter support framework is detected through the pressure difference. The breaking strength of the oil-gas separation filter needs to be ≥5bar, and under the instantaneous pressure difference of 5bar, if the support framework of the filter is broken, it proves that the strength of the support framework of the filter is insufficient and needs to be improved and strengthened, and if the support framework is intact, it proves that the strength of the support framework of the filter meets the product requirements.

[0021] The above-mentioned embodiments are only preferred embodiments of the utility model, and cannot be used to limit the range of protection of the utility model, and any non-substantial changes and replacements made by the person skilled in the art on the basis of the utility model all belong to the range of protection required by the utility model.

Claims

1. A filter burst strength testing apparatus, characterized by: The pressure vessel tank is detachably and sealingly connected with a sealing cover plate at the upper part thereof; a compressed air inlet, a safety pressure relief valve and a first pressure sensor are arranged on the sidewall of the pressure vessel tank; an exhaust pipe in communication with the pressure vessel tank is arranged on the sealing cover plate, and a second pressure sensor and a pneumatic valve for controlling the opening and closing of the exhaust pipe are arranged on the exhaust pipe.

2. The filter burst strength testing apparatus of claim 1, wherein: A pressure relief pipe in communication with the pressure vessel tank is arranged on the sidewall of the pressure vessel tank, the safety pressure relief valve is in communication with the pressure relief pipe, and the first pressure sensor is installed on the pressure relief pipe and located between the safety pressure relief valve and the pressure vessel tank.

3. The filter burst strength testing apparatus of claim 1 or 2, wherein: The second pressure sensor is installed on the exhaust pipe and located between the pneumatic valve and the sealing cover plate.

4. The filter burst strength testing apparatus of claim 1 or 2, wherein: A sealing ring is arranged on the sealing cover plate.

5. The filter burst strength testing apparatus of claim 4, wherein: The sealing cover plate is detachably and sealingly connected with the pressure vessel tank by screws or bolts.

6. The filter burst strength testing apparatus of claim 1 or 2, wherein: An electric hoist is further included, and the electric hoist is detachably connected with the sealing cover plate.

7. The filter burst strength testing apparatus of claim 1 or 2, wherein: A standing platform is further included, and the standing platform is arranged on one side of the pressure vessel tank.

8. The filter burst strength testing apparatus of claim 1 or 2, wherein: A high-precision pressure difference reading instrument is further included, and the high-precision pressure difference reading instrument is signal-connected with the first pressure sensor and the second pressure sensor respectively.

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