CN209927357U

CN209927357U - Pressure testing device of electromagnetic flowmeter

Info

Publication number: CN209927357U
Application number: CN201920764579.7U
Authority: CN
Inventors: 李中; 吕剑
Original assignee: Nanjing Metron Measurement And Control Instrument Co Ltd
Current assignee: Nanjing Metron Measurement And Control Instrument Co Ltd
Priority date: 2019-05-24
Filing date: 2019-05-24
Publication date: 2020-01-10
Anticipated expiration: 2029-05-24

Abstract

The utility model discloses a pressure testing device of an electromagnetic flowmeter, which comprises a water tank, a water pump and a pressure controller, and further comprises a base arranged on the water tank, a support arranged on the base, a pressing disc arranged on the support and an air-vent valve arranged on the side wall of the pressing disc, wherein the axis of the base is provided with a water inlet hole matched with a water outlet pipe of the water pump, the upper surface of the base is provided with a mounting groove, the axis of the mounting groove is provided with a water guide hole corresponding to the water inlet hole, the mounting groove is positioned at the position of the water guide hole and is provided with a bottom wall laminating of a sealing piece and a flange plate, a first cavity is arranged in the pressing disc, the axis of the bottom wall of the pressing disc is provided with an air inlet hole communicated with the first cavity, the support is provided with a lifting assembly for driving; this pressure testing device replaces the manpower fixed to the pipeline, and detection efficiency is high.

Description

Pressure testing device of electromagnetic flowmeter

Technical Field

The utility model relates to a technical field that flowmeter performance detected, in particular to pressure testing device of electromagnetic flowmeter.

Background

Along with the progress of society, the development of technology and the continuous expansion of market field, the technical level of an electromagnetic flowmeter is higher and higher, the performance is more and more stable and reliable, the electromagnetic flowmeter has unified international and national standards to check and examine the performance indexes, a certain method is required to be used for testing in the manufacturing process, the checking and the maintenance process of the magnetic flow converter, and a pressure tightness test is required to be carried out after the maintenance and the detection of the industrial flowmeter are qualified, so that the leakage phenomenon is ensured not to be generated before the electromagnetic flowmeter is put into use.

At present, a water pump and a distribution box are generally placed on a large water tank, a pressure controller 3 is installed on the water pump, a pipeline with flanges at two ends is vertically placed, then a handle is manually rotated, a pressing block is made to move downwards and be attached to the upper surface of a top flange, water is filled into the pipeline, and finally the testing is started.

However, the existing detection method has the following use limitations: according to the test method, the pressing block is pressed downwards by manpower, and the flowmeter is easy to topple in the detection process of the flowmeter due to overlarge water pressure, so that the detection precision is greatly influenced, and the detection efficiency is low.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an electromagnetic flowmeter's pressure testing device, its advantage: this pressure testing device replaces the manpower will wait to detect the pipeline centre gripping stable, has improved detection precision and detection efficiency.

The above technical purpose of the present invention can be achieved by the following technical solutions:

the utility model provides a pressure testing device of electromagnetic flowmeter, includes water tank, water pump and pressure controller, still including setting up base on the water tank, setting support, the pressure regulating valve of setting on the support and setting on compressing tightly a set lateral wall of setting on the base, base axle center department is equipped with the outlet pipe matched with inlet opening with the water pump, the upper surface of base is equipped with the mounting groove, the axle center department of mounting groove is equipped with the water guiding hole corresponding with the inlet opening, the mounting groove is located the diapire laminating that water guiding hole department was equipped with sealing member and ring flange, it is equipped with first cavity in the dish to compress tightly, the diapire axle center department that compresses tightly the dish is equipped with the inlet port that is linked together with first cavity, be equipped with the drive on the support and compress tightly the dish and compress tightly the lifting unit in the mounting groove with the pipeline, be equipped with.

According to the technical scheme, the pipeline is firstly placed in the mounting groove, and the sealing element is attached to the side wall of the flange plate at the bottom of the pipeline; secondly, the lifting assembly is utilized to drive the pressing disc to move downwards, so that the pipeline can be pressed in the mounting groove; then, the outer wall of the pipeline is locked by the locking assembly, so that the stability of fixing the pipeline is improved; finally, water in the water tank is sent into the pipeline through the water guide hole by using the water pump, the pressure regulating valve can be externally connected with the air storage tank to supply air to the first cavity, and finally the pressure tightness detection of the pipeline is realized; the pressure testing device with the structure replaces manpower to stably clamp the pipeline, saves time and labor, improves the stability in the pipeline detection process, and improves the detection precision.

The utility model discloses further set up to: the sealing member is the silica gel sucking disc, the inner ring of silica gel sucking disc is fixed on the lateral wall in water guide hole, the laminating of outer loop inner wall of silica gel sucking disc is on the diapire of ring flange, the longitudinal section of silica gel sucking disc is trapezoidal.

Through above-mentioned technical scheme, with the vertical mounting groove of putting into of pipeline in, the laminating of silica gel sucking disc has improved the stability that the pipeline is located the mounting groove on the diapire of pipeline bottom ring flange, because silica gel has good waterproof sealing effect, when supplying water to the pipeline, can avoid water from water guide hole overflow to the mounting groove in, improved the detection precision to pipeline leakproofness.

The utility model discloses further set up to: the support comprises a supporting block and two rows of first stand columns and second stand columns which are oppositely arranged on the lower surface of the supporting block.

Through above-mentioned technical scheme, the support that supporting shoe, first stand and second stand combined to form plays the supporting role to lifting unit, can compress tightly the pipeline in the mounting groove, has improved the stability of detecting the pipeline.

The utility model discloses further set up to: the lifting assembly comprises a hydraulic cylinder arranged on the bottom wall of the supporting block and a connecting rod connected with a hydraulic rod of the hydraulic cylinder, and one end, far away from the hydraulic cylinder, of the connecting rod is fixed on the top wall of the pressing plate.

Through above-mentioned technical scheme, utilize pneumatic cylinder drive connecting rod downstream, and then drive and compress tightly the dish downstream and laminate on the roof of the ring flange at pipeline top, finally realized fixing the pipeline in the mounting groove, improved the stability that detects pipeline leakproofness, improved the detection precision.

The utility model discloses further set up to: be equipped with the second cavity in the base, locking Assembly is including setting up the drive block that the base is located on the second cavity diapire, double-phase relative articulated regulation pole of setting on the drive block lateral wall, articulated setting respectively keeps away from the actuating lever of drive block one end and sets up the locking plate in two actuating lever one ends, the length dimension of regulation pole is less than the length dimension of actuating lever, two the one end of actuating lever is articulated mutually with the cell wall that the base is located the second cavity, two the other end of actuating lever extends to in the mounting groove, be equipped with the drive block along the drive assembly that base length direction slided in the second cavity, be equipped with the opening that supplies two actuating levers to slide relatively on the cell wall of mounting groove, two the locking plate is laminated relatively on the outer wall of pipeline.

Through the technical scheme, one end of the driving rod is hinged with the inner wall of the base, the two ends of the adjusting rod are respectively hinged with the driving block and the side wall of the driving rod, the driving block is driven by the driving assembly to slide along the length direction of the base to the direction far away from the mounting groove, the angle between the lower surface of the adjusting rod and the side wall of the bottom end of the driving rod is gradually increased at the moment, and then the two driving rods are mutually close to each other, so that the two locking plates are mutually close to each other and are attached to the outer wall; this locking mode, convenient operation has improved the stability fixed to the pipeline, replaces the manpower to stabilize the pipeline centre gripping, and labour saving and time saving has improved detection efficiency and detection precision.

The utility model discloses further set up to: the driving assembly comprises a screw rod and a motor, wherein the screw rod is rotatably arranged on the base and located in the second cavity, the motor drives the screw rod to rotate, the length direction of the screw rod is the same as the length direction of the base, and a threaded hole in threaded fit with the screw rod is formed in the axis of the driving block.

Through the technical scheme, the motor is used for driving the screw rod to rotate, and the opening has a limiting effect on the movement of the driving rod, so that the driving block is driven to slide along the length direction of the base to the direction far away from the mounting groove; because the adjusting rod is hinged with the driving rod, the angle between the upper surface of the adjusting rod and the side wall of the driving rod is gradually reduced, and then the two driving rods are close to each other, so that the two locking plates are close to each other and attached to the outer wall of the pipeline; this drive mode, simple structure, convenient operation can be with stable the fixing of pipeline in the mounting groove, has improved detection efficiency.

The utility model discloses further set up to: the diapire that the base is located the second cavity is equipped with the spout along its length direction, the driving block slides along the length direction of spout.

Through the technical scheme, the sliding grooves are arranged to limit the movement of the driving block, and the stability of the driving block in the sliding process is improved.

The utility model discloses further set up to: the lower surface of the pressing disc is provided with a rubber ring, and the diameter of the inner ring of the rubber ring is consistent with that of the air inlet hole.

Through above-mentioned technical scheme, the setting of rubber ring has strengthened the compactness of laminating between compressing tightly a set lower surface and the pipeline top ring flange roof, has improved the stability to the pipeline compress tightly the in-process.

To sum up, the utility model discloses following beneficial effect has:

1. firstly, placing a pipeline into the mounting groove, and attaching the sealing element to the side wall of the flange plate at the bottom of the pipeline; secondly, the lifting assembly is utilized to drive the pressing disc to move downwards, so that the pipeline can be pressed in the mounting groove; then, the outer wall of the pipeline is locked by the locking assembly, so that the stability of fixing the pipeline is improved; finally, water in the water tank is sent into the pipeline through the water guide hole by using the water pump, the pressure regulating valve can be externally connected with the air storage tank to supply air to the first cavity, and finally the pressure tightness detection of the pipeline is realized; the pressure testing device formed by the structure replaces manpower to stably clamp the pipeline, saves time and labor, improves the stability of the pipeline in the detection process, and improves the detection precision;

2. the pipeline is vertically placed in the mounting groove, the silica gel sucker is attached to the bottom wall of the flange plate at the bottom of the pipeline, the stability of the pipeline in the mounting groove is improved, and the silica gel has a good waterproof sealing effect, so that when water is supplied to the pipeline, the water can be prevented from overflowing from the water guide hole to the mounting groove, and the detection precision of the pipeline sealing performance is improved;

3. the setting of spout plays limiting displacement to the drive block, has improved the stability of drive block in-process that slides.

Drawings

Fig. 1 is a schematic view of the overall structure of the present embodiment.

Fig. 2 is a schematic structural view for embodying the lifting assembly in the present embodiment.

Fig. 3 is a schematic diagram of a partially enlarged structure for embodying a in fig. 2.

Fig. 4 is a schematic structural view for embodying the locking assembly in the present embodiment.

Reference numerals: 1. a water tank; 2. a water pump; 3. a pressure controller; 4. a base; 5. a support; 51. a support block; 52. a first upright post; 53. a second upright post; 6. a compression disc; 7. a pressure regulating valve; 8. a water inlet hole; 9. mounting grooves; 10. a water guide hole; 11. a seal member; 111. a silica gel sucker; 12. a first cavity; 13. an air inlet; 14. a lifting assembly; 141. a hydraulic cylinder; 142. a connecting rod; 15. a locking assembly; 151. a drive block; 152. adjusting a rod; 153. a drive rod; 154. a locking plate; 16. a second cavity; 17. a drive assembly; 171. a screw rod; 172. a motor; 18. an opening; 19. a threaded hole; 20. a chute; 21. a rubber ring; 22. an electrode; 23. a flange plate; 24. a rubber pad; 25. a pipeline.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Example (b):

a pressure testing device of an electromagnetic flowmeter, referring to fig. 1, comprises a square water tank 1, a water pump 2 is arranged on the side wall of the water tank 1, and a pressure controller 2 is arranged on the water pump 2; the pressure controller 3 can be used for starting and stopping the water supply of the water pump 2 to the pipeline 25 according to the water consumption of the pipeline 25, the pressure change of the pipeline 25 and other data, the automatic work is realized, and the detection efficiency is improved.

Referring to fig. 2 and 3, a base 4 is arranged on the top wall of a water tank 1, a support 5 is arranged on the base 4, a disc-shaped pressing disc 6 is arranged on the support 5, a pressure regulating valve 7 is arranged on the side wall of the pressing disc 6, a first cavity 12 is arranged in the pressing disc 6, an air inlet 13 communicated with the first cavity 12 is arranged at the axis of the bottom wall of the pressing disc 6, a water inlet 8 matched with the diameter of a water outlet pipe of a water pump 2 is arranged at the axis of the base 4, an installation groove 9 is arranged on the upper surface of the base 4, a water guide hole 10 corresponding to the water inlet 8 is arranged at the axis of the installation groove 9, a sealing element 11 is arranged at the position of the water guide hole 10 of the installation groove 9 and is attached to the bottom wall of a flange plate 23, a lifting assembly 14 for driving the pressing disc 6 to press a pipeline; firstly, one end of a pipeline 25 is placed in the mounting groove 9, and then the sealing element 11 is attached to the bottom wall of the flange plate 23 at the bottom of the pipeline 25; secondly, the lifting assembly 14 is utilized to drive the pressing disc 6 to move downwards, so that the lower surface of the pressing disc 6 is attached to the top wall of the flange plate 23 at the top of the pipeline 25, and the pipeline 25 can be pressed in the mounting groove 9; then, the locking assembly 15 is utilized to fix the outer wall of the pipeline 25, so that the stability of the pipeline 25 in the mounting groove 9 is improved; finally, the water in the water tank 1 is pumped into the pipeline 25 by the water pump 2, the pressure regulating valve 7 can be externally connected with an air storage tank (not shown in the figure), air pressure is sent into the first cavity 12, the pipeline 25 is pressurized through the air inlet 13, and finally the tightness detection of the pipeline 25 is realized; adopt the pressure testing device that above-mentioned structure constitutes, replace the manpower will wait to detect that pipeline 25 centre gripping is stable, improved detection precision and detection efficiency.

Referring to fig. 3, the sealing member 11 is a silica gel sucker 111, an inner ring of the silica gel sucker 111 is fixed on the side wall of the water guide hole 10, an inner wall of an outer ring of the silica gel sucker 111 is attached to the bottom wall of the flange 23 at the bottom of the pipeline 25, and a longitudinal section of the silica gel sucker 111 is in an inverted trapezoid shape; silica gel sucking disc 111 has good waterproof leakproofness, can avoid the water that gets into in the pipeline 25 from water guiding hole 10, spills over to the mounting groove 9 in, has improved detection precision and detection efficiency.

Referring to fig. 1, the bracket 5 includes a rectangular support block 51, and a first upright 52 and a second upright 53 oppositely disposed on a lower surface of the support block 51 in pairs, wherein the first upright 52 and the second upright 53 are respectively disposed at four corners of a bottom wall of the support block 51; the support 5 formed by the combination of the support block 51, the first upright column 52 and the second upright column 53 supports the lifting assembly 14, and improves the stability of the pipeline 25 in the pressing process.

Referring to fig. 2, the lifting assembly 14 includes a hydraulic cylinder 141 disposed on the bottom wall of the supporting block 51 and a connecting rod 142 connected to a hydraulic rod of the hydraulic cylinder 141, the hydraulic rod of the hydraulic cylinder 141 extends in the same direction as the height direction of the first upright column 52 and the second upright column 53, and an end of the connecting rod 142 away from the hydraulic cylinder 141 is fixed to the top wall of the pressing plate 6; after the pipeline 25 is placed in the mounting groove 9, the hydraulic cylinder 141 drives the pressing disc 6 to move downwards, so that the lower surface of the pressing disc 6 is attached to the flange plate 23 at the top of the pipeline 25, and finally the pipeline 25 is fixed in the mounting groove 9 (shown in fig. 3); this mode of lifting, simple structure, convenient operation can be with pipeline 25 stable fixation in mounting groove 9 (fig. 3), has improved detection efficiency and detection precision.

Referring to fig. 3 and 4, a second cavity 16 is provided in the base 4, the locking assembly 15 includes a driving block 151 disposed on the bottom wall of the second cavity 16 of the base 4, two adjusting rods 152 oppositely hinged to the side wall of the driving block 151, driving rods 153 respectively hinged to the two adjusting rods 152 at ends far from the driving block 151, and locking plates 154 respectively at ends of the two driving rods 153, the length of the adjusting rod 152 is smaller than that of the driving rod 153, the length direction of the adjusting rod 152 is opposite to that of the driving rod 153, one end of the driving rod 153 located on the locking plate 154 extends into the mounting groove 9, the other end of the driving rod 153 is hinged to the inner wall of the second cavity 16 of the base 4, a driving assembly 17 for driving the driving block 151 to slide along the length direction of the base 4 is provided in the second cavity 16, an opening 18 for the two driving rods 153 to slide relatively is provided on, two locking plates 154 are respectively attached to the outer wall of the pipeline 25; put into mounting groove 9 with pipeline 25, because the length dimension of actuating lever 153 is greater than the length dimension who adjusts pole 152, and actuating lever 153 is articulated mutually with adjusting pole 152, utilize drive assembly 17 to drive block 151 to slide to the direction of keeping away from mounting groove 9 along the length direction of base 4, and then the angle between the upper surface of adjusting pole 152 and the actuating lever 153 lateral wall reduces gradually, two actuating levers 153 are close to each other this moment, thereby two locking plates 154 are close to each other and the laminating is on the outer wall of pipeline 25, finally realized pipeline 25's fixed, this locking mode, moreover, the steam generator is simple in structure, and convenient operation, the stability to pipeline 25 centre gripping has been improved, and the detection efficiency and the detection precision are improved.

Referring to fig. 4, the two locking plates 154 are disposed in an arc shape, and rubber pads 24 are disposed on opposite sidewalls of the two locking plates 154; the rubber pad 24 is arranged, so that the tightness of the fit between the locking plate 154 and the outer wall of the pipeline 25 is enhanced, and the stability of clamping the pipeline 25 is improved.

Referring to fig. 3 and 4, the driving assembly 17 includes a screw rod 171 rotatably disposed on the inner wall of the second cavity 16 of the base 4 and a motor 172, a driving shaft of the motor 172 is fixedly connected to one end of the screw rod 171, a length direction of the screw rod 171 is the same as a length direction of the base 4, and a threaded hole 19 in threaded engagement with the screw rod 171 is disposed at an axial center of the driving block 151; the screw rod 171 is driven to rotate by the motor 172, and the opening 18 has a limiting effect on the movement of the driving rods 153, so that the driving block 151 is driven to slide along the length direction of the base 4, the two driving rods 153 are driven to approach or separate from each other, and finally the outer wall of the pipeline 25 is clamped; the driving mode has simple structure and convenient operation.

Referring to fig. 3, the base 4 is provided with a sliding groove 20 along the length direction thereof on the bottom wall of the second cavity 16, and the driving block 151 moves along the length direction of the sliding groove 20; the sliding groove 20 has a limiting effect on the movement of the driving block 151, and the stability of the driving block 151 in the sliding process is improved.

Referring to fig. 2, the lower surface of the pressing disc 6 is provided with a rubber ring 21, and the diameter of the inner ring of the rubber ring 21 is consistent with that of the air inlet 13; the rubber ring 21 is arranged, so that the tightness of the joint between the pressing disc 6 and the top wall of the flange plate 23 at the top of the pipeline 25 is enhanced, and the stability of pressing the pipeline 25 is improved.

The working process is as follows: firstly, the pipeline 25 is placed in the mounting groove 9, and the silica gel sucker 111 is attached to the bottom wall of the flange plate 23; the hydraulic cylinder 141 is used for driving the pressing block to move downwards, so that the pipeline 25 can be pressed in the mounting groove 9; then, the screw rod 171 is driven to rotate by the motor 172, and the sliding groove 20 has a limiting effect on the movement of the driving block 151, so that the driving block 151 is driven to slide along the length direction of the screw rod 171 to a direction far away from the mounting groove 9, and further, the angle between the upper surface of the adjusting rod 152 and the side wall of the driving rod 153 is gradually reduced, so that the two locking plates 154 are close to each other, and finally, the pipeline 25 is stably fixed in the mounting groove 9; finally, water is sequentially sent into the pipeline 25 from the water inlet hole 8 and the water guide hole 10 by the water pump 2, the pressure regulating valve 7 is opened, the first air is inflated, and then the air enters the pipeline 25 through the air inlet hole 13, and finally the pressure tightness of the pipeline 25 is detected.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Claims

1. The utility model provides a pressure testing device of electromagnetic flowmeter, includes water tank (1), water pump (2) and pressure controller (3), its characterized in that: still including setting up base (4) on water tank (1), setting support (5) on base (4), setting up compressing tightly dish (6) and pressure-regulating valve (7) of setting on compressing tightly dish (6) lateral wall on support (5), base (4) axle center department is equipped with inlet opening (8) with the outlet pipe matched with of water pump (2), the upper surface of base (4) is equipped with mounting groove (9), the axle center department of mounting groove (9) is equipped with water guide hole (10) corresponding with inlet opening (8), mounting groove (9) are located water guide hole (10) and locate the diapire laminating that is equipped with sealing member (11) and ring flange (23), be equipped with first cavity (12) in compressing tightly dish (6), the diapire axle center department that compresses tightly dish (6) is equipped with inlet port (13) that are linked together with first cavity (12), be equipped with the drive on support (5) and compress tightly dish (6) and compress tightly the lifting unit(s) (7) of pipeline (25) in mounting groove (9) 14) And a locking assembly (15) used for fixing the outer wall of the pipeline (25) is arranged in the mounting groove (9).

2. The pressure testing device of the electromagnetic flowmeter according to claim 1, characterized in that: sealing member (11) are silica gel sucking disc (111), the inner ring of silica gel sucking disc (111) is fixed on the lateral wall of water guiding hole (10), the laminating of the outer loop inner wall of silica gel sucking disc (111) is on the diapire of ring flange (23), the longitudinal section of silica gel sucking disc (111) is trapezoidal.

3. The pressure testing device of the electromagnetic flowmeter according to claim 1, characterized in that: the support (5) comprises a support block (51) and two rows of first upright columns (52) and second upright columns (53) which are arranged on the lower surface of the support block (51) in a pairwise opposite mode.

4. The pressure testing device of the electromagnetic flowmeter according to claim 3, characterized in that: the lifting assembly (14) comprises a hydraulic cylinder (141) arranged on the bottom wall of the supporting block (51) and a connecting rod (142) connected with a hydraulic rod of the hydraulic cylinder (141), and one end, far away from the hydraulic cylinder (141), of the connecting rod (142) is fixed on the top wall of the pressing plate (6).

5. The pressure testing device of the electromagnetic flowmeter according to claim 1, characterized in that: a second cavity (16) is arranged in the base (4), the locking assembly (15) comprises a driving block (151) arranged on the bottom wall of the second cavity (16) of the base (4), two adjusting rods (152) oppositely hinged to the side wall of the driving block (151), driving rods (153) respectively hinged to the two adjusting rods (152) and far away from one ends of the driving block (151), and locking plates (154) respectively arranged at one ends of the two driving rods (153), the length of each adjusting rod (152) is smaller than that of each driving rod (153), one ends of the two driving rods (153) are hinged to the wall of the base (4) on the second cavity (16), the other ends of the two driving rods (153) extend into the mounting groove (9), and a driving assembly (17) for driving the driving block (151) to slide along the length direction of the base (4) is arranged in the second cavity (16), the wall of the mounting groove (9) is provided with an opening (18) for the relative sliding of the two driving rods (153), and the two locking plates (154) are relatively attached to the outer wall of the pipeline (25).

6. The pressure testing device of the electromagnetic flowmeter according to claim 5, characterized in that: the driving assembly (17) comprises a screw rod (171) rotatably arranged in the second cavity (16) of the base (4) and a motor (172) driving the screw rod (171) to rotate, the length direction of the screw rod (171) is the same as that of the base (4), and a threaded hole (19) matched with the screw rod (171) in a threaded mode is formed in the axis of the driving block (151).

7. The pressure testing device of the electromagnetic flowmeter of claim 6, characterized in that: the bottom wall that base (4) are located second cavity (16) is equipped with spout (20) along its length direction, drive block (151) slide along the length direction of spout (20).

8. The pressure testing device of the electromagnetic flowmeter according to claim 1, characterized in that: the lower surface of the pressing disc (6) is provided with a rubber ring (21), and the diameter of the inner ring of the rubber ring (21) is consistent with that of the air inlet hole (13).