CN212903757U

CN212903757U - Airtight test device of intelligent buoy level meter clamping body

Info

Publication number: CN212903757U
Application number: CN202022331851.8U
Authority: CN
Inventors: 周仕友; 杨尊朝; 贾敬强
Original assignee: Beijing Miaosite Instrument Co ltd
Current assignee: Beijing Miaosite Instrument Co ltd
Priority date: 2020-10-19
Filing date: 2020-10-19
Publication date: 2021-04-06
Anticipated expiration: 2030-10-19

Abstract

The utility model relates to an airtight test device of body is pressed from both sides to intelligent flotation pontoon level gauge that precision equipment seals detection field, it includes the mount, is provided with the last sealing member and the lower sealing member that seal the centre gripping to pressure-bearing part in the intelligent flotation pontoon level gauge in the mount, sealing member and mount fixed connection down, mount one side still is provided with the drive go up the sealing member to the driving piece that the sealing member displacement pressed from both sides the pressure-bearing part and establish down. Compared with the traditional manual screwing bolt sealing, the manual screwing bolt sealing device greatly saves physical consumption and improves sealing efficiency.

Description

Airtight test device of intelligent buoy level meter clamping body

Technical Field

The application relates to the field of precision equipment sealing detection, in particular to an air tightness test device of an intelligent buoy liquid level meter clamping body.

Background

The intelligent float level meter consists of intelligent level indicator, measuring chamber, measuring mechanism, float, torsion pipe assembly, etc. The change of the liquid level of the measured medium causes the buoyancy force borne by the buoy to change, and the change is transmitted to the torque tube assembly, so that the torque tube in the torque tube assembly and the mandrel synchronously rotate, and meanwhile, the magnetic steel assembly fixed on the torque tube mandrel generates rotary displacement, the magnetic field detected by the Hall effect sensor is changed, and the sensor converts a magnetic field signal into an electric signal. The intelligent liquid level indicator adopts an indicator and a related electronic circuit to measure a process variable, provides current output, drives a liquid crystal display and provides HART communication capability, is subjected to environmental temperature compensation and linearized electric signals, can also compensate liquid level density change caused by process temperature change, and outputs and provides a 4-20mA current output signal.

The working pressure of the intelligent buoy liquid level meter is 32MPa at most, and an airtight test must be carried out on the condition that a pressure-bearing part of the intelligent buoy liquid level meter is not allowed to have leakage, so that the safety and reliability of a product in the using process are improved. At present, the airtight test of the pressure-bearing member of the intelligent buoy liquid level meter mainly adopts a mode of plugging two ports of the pressure-bearing member by two blind flange through bolts, then carries out pressurization treatment, and simultaneously adopts soap liquid inspection or immersion inspection in water.

In view of the above-mentioned related art, the inventor thinks that there are tedious operations, time-consuming and labor-consuming defects when fixing and sealing the blind plate and the pressure-bearing member by bolts.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims at providing an airtight test device of body is pressed from both sides to intelligence flotation pontoon level gauge, its advantage has improved the sealed efficiency to the pressure-bearing part, is convenient for follow-up detect the pressure-bearing part.

The application provides an airtight test device of intelligent flotation pontoon level gauge clamp dress body adopts following technical scheme:

the utility model provides an airtight test device of intelligence flotation pontoon level gauge clamp dress body, includes the mount, is provided with the last sealing member and the lower sealing member that carry out sealed centre gripping to pressure-bearing part in the intelligence flotation pontoon level gauge in the mount, sealing member and mount fixed connection down, mount one side still is provided with the drive go up the sealing member to the driving piece that lower sealing member displacement and press from both sides the pressure-bearing part and establish.

By adopting the technical scheme, when a worker seals the pressure-bearing member, firstly, one port of the pressure-bearing member is abutted against one side of the lower sealing element facing the upper sealing element, then the driving element drives the upper sealing element to approach the lower sealing element in the direction, and the upper sealing element is abutted against the other port of the pressure-bearing member, so that the effect of sealing the two ports of the pressure-bearing member is realized; compared with the traditional manual screw bolt sealing, the manual screw bolt sealing device greatly saves physical consumption and improves the sealing efficiency.

Preferably, subaerial being provided with the support body, the mount sets up in the support body, and the below that lies in the mount in the support body is provided with the water tank, be fixed with on the support body and be used for driving the mount and soak the extensible member in the water tank, the terminal surface and the mount fixed connection of extensible member output shaft, the other pressurization subassembly that carries out the pressurization to the pressure-bearing part inside that still is provided with of support body.

Through adopting above-mentioned technical scheme, when staff's test pressure-bearing member's sealing performance, drive the mount through the extensible member and soak in the water tank, rethread pressurization subassembly carries out gaseous pressurization to pressure-bearing member is inside, whether liquid has the bubble in the observation water tank to reach and detect whether pressure-bearing member leaks, this process has reduced artifical manually operation, has not only improved operating efficiency, but also has improved detection efficiency.

Preferably, one side of the upper sealing element is provided with an air passage communicated with the inside of the pressure-bearing member; the pressurizing assembly comprises a gas cylinder and a gas pipe connected with a gas outlet of the gas cylinder, and the end part of the gas pipe is communicated with the gas passage.

Through adopting above-mentioned technical scheme, the pressure components simple structure, the maintenance and the installation of being convenient for, the gas cylinder space occupies for a short time moreover, is convenient for transport and change, has improved maintenance efficiency.

Preferably, a plurality of annular first supporting surfaces are arranged on one side, facing the lower sealing element, of the upper sealing element from the middle area of the upper sealing element to the surrounding steps, and a second supporting surface corresponding to the first supporting surface is arranged on one side, facing the upper sealing element, of the lower sealing element.

By adopting the technical scheme, the first supporting surface and the second supporting surface are arranged in a stepped manner, so that the pressure-bearing component is clamped between the upper sealing element and the lower sealing element, the protruding parts of the upper sealing element and the lower sealing element play a limiting role on the pressure-bearing component, the pressure-bearing component is not easily separated from the upper sealing element and the lower sealing element when clamped, and the potential safety hazard is reduced.

Preferably, each of the first support surface and the second support surface is provided with a sealing ring.

By adopting the technical scheme, the arrangement of the sealing ring makes up the pressing gaps among the upper sealing element, the lower sealing element and the pressure-bearing member, and improves the sealing performance of the upper sealing element and the pressure-bearing member as well as the sealing performance of the lower sealing element and the pressure-bearing member.

Preferably, the driving member is arranged as an air-liquid pressurization cylinder.

By adopting the technical scheme, the piston rod of the gas-liquid pressure cylinder has high expansion speed and stable transmission; the cylinder body device is simple, the output adjustment is easy, the energy consumption is low, the soft landing does not damage the die, the installation is easy, the occupied space is small, the faults are few, the service life is long, and the noise is small. The low-pressure gas is used for driving, the output force is large, and compared with a hydraulic control system, the hydraulic control system is simple to maintain.

Preferably, the water tank is a cylinder body made of transparent materials.

By adopting the technical scheme, the water tank is made of transparent materials, so that workers can observe deformation and leakage points of the pressure-bearing component when pressurizing through various angles, and the detection efficiency is improved.

Preferably, the telescopic parts are provided in two numbers and are positioned at two sides of the driving part.

Through adopting above-mentioned technical scheme, be provided with two with the extensible member for the mount atress is more balanced, and it is more stable to dip the mount and operate in the water tank.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the sealing efficiency of the pressure-bearing member is improved, the upper sealing element and the lower sealing element are used for clamping and sealing the pressure-bearing member by pushing the upper sealing element through the gas-liquid pressurizing piece, and the time and the labor consumption of the traditional manual bolt screwing sealing are replaced;

2. the stability of pressure-bearing member centre gripping has been improved, because last sealing member and lower sealing member set up to the echelonment for when last sealing member and lower sealing member centre gripping pressure-bearing member, the displacement between upper sealing member and the lower sealing member has been restricted to the protruding region of upper sealing member and lower sealing member, has reduced the potential safety hazard.

Drawings

FIG. 1 is a schematic view showing the overall structure of a gas tightness test apparatus;

FIG. 2 is a schematic structural view showing a drive assembly and a sealing mechanism;

FIG. 3 is a schematic structural view embodying a bearing member;

FIG. 4 is a partial cross-sectional view embodying a sealing mechanism;

fig. 5 is a schematic structural view showing a pressurizing assembly.

Description of reference numerals: 1. a frame body; 11. an upper support platform; 12. a lower support platform; 13. a pillar; 21. a fixed mount; 22. a water tank; 3. a sealing mechanism; 31. a gas-liquid pressure cylinder; 32. an upper seal member; 321. a first support surface; 322. an air outlet; 323. an airway; 33. a lower seal member; 331. a second support surface; 34. a seal ring; 4. a pressurizing assembly; 41. a gas cylinder; 42. a pressure relief valve; 43. an air tube; 44. an extension tube; 45. a first pressure gauge; 5. a drive assembly; 51. a lifting cylinder; 6. a bearing member; 61. a pressure measuring part; 62. an extension portion.

Detailed Description

The present application is described in further detail below with reference to figures 1-5.

An air tightness test device for a clamping body of an intelligent buoy liquid level meter. As shown in fig. 1, comprises a frame body 1; a fixed mount 21 arranged in the frame body 1; the sealing mechanism 3 is arranged in the fixing frame 21 and used for sealing the port of the pressure-bearing component 6 in the intelligent buoy liquid level meter; a water tank 22 disposed below the fixed frame 21; the pressurizing assembly 4 is arranged beside the frame body 1 and used for pressurizing the sealed space inside the pressure-bearing member 6; and a driving assembly 5 disposed in the frame body 1 to drive the fixed frame 21 to move toward the water tank 22.

The frame body 1 is composed of an upper supporting platform 11, a lower supporting platform 12 and four supporting columns 13 which are parallel to each other. The four pillars 13 are respectively fixed at four corners of the upper support platform 11 and the lower support platform 12, and are perpendicular to the plane of the upper support platform 11 and the plane of the lower support platform 12. So that the upper and

lower support platforms

11, 12 are parallel to the ground when the four columns 13 are supported on the ground.

The water tank 22 is a cylinder with an open upper end and is fixed on the lower supporting platform 12, and the water tank 22 is formed by bonding glass plates, so that when the pressure-bearing member 6 is immersed in the water tank 22 for a pressure test, workers can observe the leakage point of the pressure-bearing member 6 conveniently.

Referring to fig. 2, the fixing frame 21 is located between the upper support platform 11 and the lower support platform 12, and in this embodiment, the fixing frame 21 is a rectangular annular frame, so as to facilitate fixing the pressure-bearing member 6 inside the fixing frame 21. Above-mentioned drive assembly 5 includes two lift cylinders 51, and the vertical setting of lift cylinder 51 is in last supporting platform 11's top to the symmetry sets up in the both sides of fixed frame, every lift cylinder 51's body and 1 fixed connection of support body, the tip of lift cylinder 51 piston rod pass last supporting platform 11 and with fixed frame fixed connection. When the two lifting cylinders 51 work synchronously, the fixing frame can be displaced towards the water tank 22 stably, and the transmission is stable.

The sealing mechanism 3 includes an air-liquid pressurizing cylinder 31 vertically disposed above the fixed frame 21, and the air-liquid pressurizing cylinder 31 is located between two lifting cylinders 51. The gas-liquid pressure cylinder 31 body passes through the upper supporting platform 11 and is fixed with the fixing frame 21, the piston rod of the gas-liquid pressure cylinder 31 passes through the upper arm of the fixing frame, an upper sealing element 32 is fixed at the end part of the piston rod of the gas-liquid pressure cylinder 31, the axis of the piston rod of the gas-liquid pressure cylinder 31 is perpendicular to the upper sealing element 32, and the upper sealing element 32 is a circular plate material and is larger than the opening end face of the pressure-bearing part 6 in size. A lower sealing member 33 parallel to the upper sealing member 32 is arranged right below the upper sealing member 32, the lower sealing member 33 is positioned in the fixing frame and fixedly connected with the lower arm of the fixing frame 21, and the lower sealing member 33 is also a circular plate. The upper seal member 32 is driven by the gas-liquid pressurizing cylinder 31 to move in the direction of the lower seal member 33, whereby the pressure receiving member 6 is sandwiched. The piston rod of the gas-liquid pressure cylinder 31 is high in expansion speed and stable in transmission; the output adjustment is easy, the energy consumption is low, the soft landing does not damage the die, the damage to the pressure-bearing member 6 is reduced, and the control efficiency is also improved.

Referring to fig. 3, the pressure-bearing member 6 of the intelligent float level meter comprises a pressure measuring part 61 and an extending part 62 arranged on one side of the pressure measuring part 61, the pressure measuring part 61 is a circular pipe body, the extending part 62 is welded on the outer peripheral surface of the pressure measuring part 61, a cavity is arranged in the extending part 62 and used for installing related components, the cavity in the extending part 62 is communicated with the inner space of the pressure measuring part 61, and a port of the extending part 62 is arranged in an opening mode. When the worker performs the airtight test on the pressure-containing member 6, the worker needs to perform the sealing process on the opening end of the extension portion 62 first, so that the worker can detect whether there is a leakage point between the pressure-measuring portion 61 and the extension portion 62 through the pressurizing assembly 4.

Referring to fig. 4, on the side of the upper sealing member 32 facing the lower sealing member 33, two annular first supporting surfaces 321 are continuously formed from the edge of the upper sealing member 32 toward the center of the upper sealing member 32, the two first supporting surfaces 321 are parallel to the lower surface of the upper sealing member 32, and the two first supporting surfaces 321 are adjacent to each other and are arranged in a step manner, so that the middle area of the lower surface of the upper sealing member 32 is the lowest point of the upper sealing member 32. The side of the lower sealing element 33 facing the upper sealing element 32, which corresponds to each first supporting surface 321, is provided with a second supporting surface 331, and the second supporting surfaces 331 are also arranged in a step manner, so that the middle area of the upper surface of the lower sealing element 33 is the highest point of the lower sealing element 33. And an annular sealing ring 34 is respectively embedded on each first supporting surface 321 of the upper sealing element 32 and each second supporting surface 331 of the lower sealing element 33, so that when the upper sealing element 32 and the lower sealing element 33 clamp the pressure-bearing part 6, the sealing ring 34 can compensate the pressing gap between the upper sealing element 32 and the pressure-bearing part 61 of the pressure-bearing part 6 through flexible deformation. Moreover, the first supporting surface 321 and the second supporting surface 331 are arranged in a stepped manner, so that when the upper sealing member 32 and the lower sealing member 33 clamp different types of pressure-bearing members 6, the pressure measuring part 61 in the pressure-bearing member 6 can be clamped in different planes, the sliding of the pressure-bearing member 6 between the upper sealing member 32 and the lower sealing member 33 during pressure measurement is limited, and the potential safety hazard that the pressure-bearing member 6 slides and falls off is reduced.

Referring to fig. 5, the pressurizing assembly 4 includes a gas bottle 41 vertically installed beside the frame body 1, and a pressure release valve 42 and a gas pipe 43 are sequentially connected to a bottle mouth of the gas bottle 41. The central area of the lower surface of the upper sealing member 32 is provided with an air outlet 322, the outer circumferential surface of the upper sealing member 32 is provided with an air passage 323 communicated with the air outlet 322, and the port of the air pipe 43 is connected to the port of the air passage 323. As shown in fig. 2, an extension pipe 44 communicated with the air duct 323 is further connected to the outer circumferential surface of the upper sealing member 32, and a first pressure gauge 45 is provided at an end of the extension pipe 44, so that a worker can control the magnitude of pressurization.

The implementation principle of the airtight test device of the intelligent buoy liquid level meter clamping body in the embodiment of the application is as follows:

the staff adds the appropriate amount of clean water with water tank 22 at first, then controls lift cylinder 51 and drives mount 21 and dip in water tank 22 to whether detect lift cylinder 51 normal work, and detect whether the degree of depth of clean water can be with the submergence of surveyed.

And controlling the lifting cylinder 51 to lift so as to lift the fixing frame 21 to an initial position, then placing one port of the pressure measuring part 61 of the pressure bearing part 6 on the second supporting surface 331 corresponding to the lower sealing part 33, then controlling the gas-liquid pressure cylinder 31 to drive the upper sealing part 32 to move downwards, enabling the upper sealing part 32 to be attached to the other port of the pressure measuring part 61 of the pressure bearing part 6, and checking whether the value of a built-in pressure gauge of the gas-liquid pressure cylinder 31 meets the requirement. And finally, opening the gas cylinder 41 to enable high-pressure gas to be injected into the inner space of the pressure-bearing member 6, maintaining a proper pressure value, checking whether the clamping position of the pressure-bearing member 6 has a gas leakage condition or not, and if the gas leakage condition does not exist, releasing the pressure in the pressure-bearing member 6 through the pressure release valve 42 by a worker.

After the preparation work is finished, the worker controls the lifting cylinder 51 to drive the fixing frame 21 to move towards the water tank 22, the pressure-bearing component 6 is immersed in clean water, then high-pressure gas is slowly introduced, and when the first pressure gauge 45 is observed to reach a test pressure value, the valve of the gas cylinder 41 is closed to enable the interior of the pressure-bearing component 6 to be in a pressure maintaining state. And (4) keeping the pressure for a specified time, checking the welding seams and all connecting parts of the pressure-bearing member 6, if leakage exists, and testing again according to the procedures after pressure relief and repair. In the process of the air pressure test, the pressure-bearing member 6 has no abnormal noise, no air leakage after being immersed in water, and no visible deformation, namely the pressure-bearing member is qualified. After the workpiece is inspected, the pressure relief valve 42 is opened to perform pressure relief slowly, so that the situation that the pressure bearing member 6 is cracked due to too fast pressure relief is reduced.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides an airtight test device of intelligence flotation pontoon level gauge clamp dress body which characterized in that: including mount (21), be provided with in mount (21) and carry out last sealing member (32) and lower sealing member (33) that sealed centre gripping was carried out to pressure-bearing member (6) in the intelligent flotation pontoon level gauge, lower sealing member (33) and mount (21) fixed connection, mount (21) one side still is provided with the drive go up sealing member (32) to lower sealing member (33) displacement and carry out the driving piece that presss from both sides and establish pressure-bearing member (6).

2. The air tightness test device for the clamping body of the intelligent buoy liquid level meter as claimed in claim 1, wherein: be provided with support body (1) subaerial, mount (21) set up in support body (1), and the below that lies in mount (21) in support body (1) is provided with water tank (22), be fixed with on support body (1) and be used for driving telescopic part that mount (21) soaked in water tank (22), the tip and mount (21) fixed connection of telescopic part output shaft, support body (1) other still is provided with and pressurizes pressure assembly (4) of test to pressure-bearing member (6) inside.

3. The air tightness test device for the clamping body of the intelligent buoy liquid level meter as claimed in claim 2, wherein: one side of the upper sealing element (32) is provided with an air passage (323) which is communicated with the inside of the pressure-bearing member (6); the pressurizing assembly (4) comprises a gas cylinder (41) and a gas pipe (43) connected with a gas outlet (322) of the gas cylinder (41), and the end part of the gas pipe (43) is communicated with the gas passage (323).

4. The air tightness test device for the clamping body of the intelligent buoy liquid level meter as claimed in claim 1, wherein: go up sealing member (32) and set up a plurality of annular first holding surface (321) towards the ladder all around by the middle part region of last sealing member (32) towards the one side of lower sealing member (33), lower sealing member (33) are seted up second holding surface (331) that correspond with first holding surface (321) towards the one side of last sealing member (32).

5. The air tightness test device for the clamping body of the intelligent buoy liquid level meter as claimed in claim 4, wherein: and a sealing ring (34) is arranged on each of the first supporting surface (321) and the second supporting surface (331).

6. The air tightness test device for the clamping body of the intelligent buoy liquid level meter as claimed in claim 1, wherein: the driving piece is arranged as a gas-liquid pressure cylinder (31).

7. The air tightness test device for the clamping body of the intelligent buoy liquid level meter as claimed in claim 2, wherein: the water tank (22) is a cylinder body made of transparent materials.

8. The air tightness test device for the clamping body of the intelligent buoy liquid level meter as claimed in claim 2, wherein: the telescopic parts are provided with two parts and are positioned on two sides of the driving part.