CN112345042A - Full-automatic multifunctional water meter calibrating device and calibrating method - Google Patents
Full-automatic multifunctional water meter calibrating device and calibrating method Download PDFInfo
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- CN112345042A CN112345042A CN202011181884.7A CN202011181884A CN112345042A CN 112345042 A CN112345042 A CN 112345042A CN 202011181884 A CN202011181884 A CN 202011181884A CN 112345042 A CN112345042 A CN 112345042A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 223
- 238000000034 method Methods 0.000 title abstract description 16
- 230000007246 mechanism Effects 0.000 claims abstract description 25
- 238000007789 sealing Methods 0.000 claims abstract description 10
- 238000005086 pumping Methods 0.000 claims abstract description 8
- 238000001514 detection method Methods 0.000 claims abstract description 4
- 238000012545 processing Methods 0.000 claims description 23
- 238000012795 verification Methods 0.000 claims description 13
- 238000009434 installation Methods 0.000 claims description 12
- 239000003651 drinking water Substances 0.000 claims description 4
- 235000020188 drinking water Nutrition 0.000 claims description 4
- 230000009471 action Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
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- 238000011197 physicochemical method Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F25/00—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume
- G01F25/10—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume of flowmeters
- G01F25/17—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume of flowmeters using calibrated reservoirs
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
- G01M3/28—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds
- G01M3/2853—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for pipe joints or seals
Abstract
The invention discloses a full-automatic multifunctional water meter calibrating device which comprises a bottom plate and supporting legs fixed at the bottom of the bottom plate, wherein a water pressing mechanism is arranged on the left side of the top of the bottom plate, a vacuumizing mechanism is arranged on the right side of the top of the bottom plate, and the full-automatic multifunctional water meter calibrating method comprises the following steps: s1, installing a water meter to be measured; s2, vacuumizing; s3, measuring the sealing performance of the joint of the water meter to be measured; s4, pumping water; s5, verifying the accuracy of the water meter; the invention relates to the technical field of instrument detection. According to the full-automatic multifunctional water meter calibrating device and the calibrating method, the vacuumizing mechanism can carry out sealing detection on the water meter before the water meter is measured, so that the sealing performance of the water meter to be measured and the water pipe connection is guaranteed, the measuring result is more accurate, the functions are more abundant, the sealing performance can be automatically detected, the automation degree is higher, the practicability is improved, the accuracy of the water meter can be judged by comparing the water quantity measured by the water meter with the extracted water quantity, and the use is convenient.
Description
Technical Field
The invention relates to the technical field of water meter measurement, in particular to a full-automatic multifunctional water meter calibrating device and a calibrating method.
Background
According to the regulations of the metering law, the water meter belongs to a work meter which is subject to trade settlement and is arranged in a compulsory verification catalogue, compulsory verification should be carried out on the work meter, so that verification work on the water meter should be listed as an important part of metering management, and compulsory verification should be carried out on the work meter, so that verification work on the water meter should be listed as an important part of metering management.
The existing water meter calibrating device has single function, and can calibrate after being communicated with a water pipe, when the joint between the water meter and the water pipe leaks, the existing calibrating device cannot identify, and the water meter calibrating result is inaccurate easily, so that economic loss is caused to a water supply plant.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a full-automatic multifunctional water meter calibrating device and a calibrating method, which solve the problems that the functions are single, and when the joint between a water meter and a water pipe leaks, the existing calibrating device cannot identify the joint, so that the water meter calibrating result is inaccurate.
In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides a full-automatic multi-functional water gauge calibrating installation, includes the bottom plate and fixes the supporting leg in the bottom plate bottom, the left side at bottom plate top is provided with pressurized-water mechanism to the right side at bottom plate top is provided with evacuation mechanism.
The vacuumizing mechanism comprises a left frame body, a right frame body and a vacuum pump, a left side fixedly connected with alarm lamp at the top of the left frame body is provided with a pressure sensor, an air inlet of the vacuum pump is communicated with an air inlet pipe, one end, far away from the vacuum pump, of the air inlet pipe is communicated with the top of the right frame body, a left side fixedly connected with water inlet pipe of the left frame body is provided with a right side fixedly connected with water outlet pipe of the right frame body, and one end, obtained relatively, of the water inlet pipe and the water outlet pipe penetrates through the left frame body and the right frame body respectively and extends to the inside of the.
Preferably, the opposite sides of the left frame body and the right frame body are fixedly connected through bolts, the vacuum pump is fixed to the top of the bottom plate through support blocks, the bottoms of the left frame body and the right frame body are fixedly connected with sliding blocks, and the bottoms of the two sliding blocks are slidably connected with the top of the bottom plate through sliding rails.
Preferably, one end, far away from the right frame body, of the water outlet pipe penetrates through the supporting block and extends to the right side of the supporting block, the first electromagnetic valve is fixedly connected to the inside of the water inlet pipe and the outside of the water inlet pipe, which is located on the left frame body, and the second electromagnetic valve is fixedly connected to the inside of the water outlet pipe and the right side of the supporting block.
Preferably, the pressurized-water mechanism includes and fixes the water tank at the bottom plate top through the bracing piece, the equal fixedly connected with telescopic link in both sides of water tank to the output fixedly connected with fly leaf of two telescopic links, the equal fixedly connected with connecting rod in both sides of fly leaf bottom, two the bottom of connecting rod all runs through the water tank and extends to the inside of water tank, two the connecting rod is located the inside one end fixedly connected with piston plate of water tank.
Preferably, the bottom intercommunication of water tank has the drinking-water pipe to the inside fixedly connected with third solenoid valve of drinking-water pipe, the one end that left framework was kept away from to the inlet tube is linked together with the bottom on water tank right side, fixed frame fixedly connected with central processing unit is passed through in the front of water tank, the front of water tank just is located the top fixedly connected with control panel of fixed frame.
Preferably, the output end of the central processing unit is electrically connected with the input ends of the first electromagnetic valve, the second electromagnetic valve, the third electromagnetic valve, the alarm lamp, the vacuum pump, the telescopic rod and the pressure sensor through wires respectively, the output end of the pressure sensor is electrically connected with the input end of the comparison module through a wire, and the output end of the comparison module is electrically connected with the input end of the feedback module through a wire.
Preferably, the output end of the feedback module is electrically connected with the input end of the central processing unit through a wire, the output end of the central processing unit is electrically connected with the input end of the comparison module through a wire, and the output end of the control panel is electrically connected with the input end of the central processing unit through a wire.
The invention also discloses a full-automatic multifunctional water meter calibration method, which specifically comprises the following steps:
s1, installing the water meter to be measured: the bolt between the left frame body and the right frame body is screwed off, the left frame body and the right frame body are opened, and then the water meter to be detected is installed between the water inlet pipe and the water outlet pipe, so that the water inlet pipe is communicated with the water outlet pipe through the water meter to be detected;
s2, vacuumizing: setting a pressure threshold value through a control panel, closing a first electromagnetic valve and a second electromagnetic valve, enabling a vacuum pump to work, vacuumizing the space between a left frame body and a right frame body until a value detected by a pressure sensor is the same as the set pressure threshold value, and stopping the vacuum pump;
s3, measuring the sealing performance of the joint of the water meter to be measured: the pressure sensor detects the pressure in the left frame body and the right frame body in real time, the detected numerical value is transmitted to the comparison module, the comparison module compares the detected numerical value with a set pressure threshold value, then the comparison result is transmitted to the central processing unit through the feedback module, the second electromagnetic valve is opened, if the numerical value detected by the pressure sensor is equal to the set pressure threshold value all the time, the connection tightness between the water meter to be detected and the water inlet pipe and the water outlet pipe is better, the subsequent verification work can be carried out, if the detected pressure numerical value is smaller than the set pressure threshold value, the leakage at the connection part between the water meter to be detected and the water inlet pipe and the water outlet pipe is shown, at the moment, the central processing unit controls the alarm lamp to be turned on, and the water meter;
s4, pumping water: when the sealing performance of the joint of the water meter to be measured meets the requirement, the third electromagnetic valve is opened, the telescopic rod is extended, the movable plate drives the piston plate to move upwards through the connecting rod, and the third electromagnetic valve is closed after a certain amount of water is pumped into the water tank;
s5, water meter accuracy verification: and opening the first electromagnetic valve, enabling the telescopic rod to contract at a set speed, driving the piston plate to move downwards, enabling water in the water tank to flow through the water meter to be measured through the water inlet pipe and then flow out of the water outlet pipe until the water in the water tank is completely discharged, and comparing the water flow measured by the water meter to be measured with the water flow in the water tank to measure the accuracy of the water meter.
Advantageous effects
The invention provides a full-automatic multifunctional water meter calibrating device and a calibrating method. Compared with the prior art, the method has the following beneficial effects:
(1) this full-automatic multi-functional water gauge calibrating installation and verification method, right side through the bottom plate top is provided with evacuation mechanism, evacuation mechanism includes left framework, right framework and vacuum pump, the left side fixedly connected with warning light at left framework top, and the top fixedly connected with pressure sensor of left framework inner wall, the air inlet intercommunication of vacuum pump has the intake pipe, the left side fixedly connected with inlet tube of left framework, and the right side fixedly connected with outlet pipe of right framework, evacuation mechanism can carry out the leakproofness detection to the water gauge before the water gauge survey, in order to guarantee the leakproofness of the water gauge that awaits measuring and water piping connection, thereby make the testing result more accurate, the function is richer, and can detect the leakproofness automatically, degree of automation is higher, and the practicality is improved.
(2) This full-automatic multi-functional water gauge calibrating installation and verification method, left side through the bottom plate top is provided with pressurized-water mechanism, pressurized-water mechanism includes the water tank of fixing at the bottom plate top through the bracing piece, the equal fixedly connected with telescopic link in both sides of water tank, and the output fixedly connected with fly leaf of two telescopic links, the equal fixedly connected with connecting rod in both sides of fly leaf bottom, the inside that the water tank and extend to the water tank is all run through to the bottom of two connecting rods, the one end fixedly connected with piston plate that two connecting rods are located the water tank inside, pressurized-water mechanism extracts a certain amount of water, survey the water yield by the water gauge that awaits measuring, carry out the comparison with the water yield of extraction with the result.
Drawings
FIG. 1 is a front view of the present invention;
FIG. 2 is a cross-sectional view of the present invention;
FIG. 3 is a cross-sectional view of the left and right frames of the present invention;
FIG. 4 is a cross-sectional view of the water pressurizing mechanism of the present invention;
fig. 5 is a schematic block diagram of the architecture of the system of the present invention.
In the figure: the device comprises a base plate 1, supporting legs 2, a water pressing mechanism 3, a water tank 31, a telescopic rod 32, a movable plate 33, a connecting rod 34, a piston plate 35, a water pumping pipe 36, a third electromagnetic valve 37, a vacuum pumping mechanism 4, a left frame 41, a right frame 42, a vacuum pump 43, a warning lamp 44, a pressure sensor 45, an air inlet pipe 46, a water inlet pipe 47, a water outlet pipe 48, a supporting block 49, a sliding block 410, a sliding rail 411, a first electromagnetic valve 412, a second electromagnetic valve 413, a fixed frame 5, a central processing unit 6, a control panel 7, a comparison module 8 and a feedback module 9.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, the present invention provides a technical solution: a full-automatic multifunctional water meter calibrating device comprises a bottom plate 1 and supporting legs 2 fixed at the bottom of the bottom plate 1, wherein a water pressing mechanism 3 is arranged at the left side of the top of the bottom plate 1, a vacuumizing mechanism 4 is arranged at the right side of the top of the bottom plate 1, the vacuumizing mechanism 4 comprises a left frame body 41, a right frame body 42 and a vacuum pump 43, the type of the vacuum pump 43 is SHB-IIIA, the vacuum pump 43 is a device or equipment which is used for obtaining vacuum by utilizing a mechanical, physical, chemical or physicochemical method to pump a pumped container, one opposite sides of the left frame body 41 and the right frame body 42 are fixedly connected through bolts, the vacuum pump 43 is fixed at the top of the bottom plate 1 through a supporting block 49, the bottoms of the left frame body 41 and the right frame body 42 are both fixedly connected with sliding blocks 410, the bottoms of the two sliding blocks 410 are both in sliding connection with the top of the bottom plate 1 through, and the top of the inner wall of the left frame 41 is fixedly connected with a pressure sensor 45, the model of the pressure sensor 45 is PTG501, the air inlet of the vacuum pump 43 is communicated with an air inlet pipe 46, one end of the air inlet pipe 46 far away from the vacuum pump 43 is communicated with the top of the right frame 42, the left side of the left frame 41 is fixedly connected with a water inlet pipe 47, the right side of the right frame 42 is fixedly connected with a water outlet pipe 48, the water inlet pipe 47 and the water outlet pipe 48 are both hoses, when the left frame 41 and the right frame 42 are opened, the water inlet pipe 47 and the water outlet pipe 48 can be bent so as to install a water meter to be detected, one end of the water outlet pipe 48 far away from the right frame 42 penetrates through a supporting block 49 and extends to the right side of the supporting block 49, a first electromagnetic valve 412 is fixedly connected inside the water, the water inlet pipe 47 and the water outlet pipe 48 have opposite ends that penetrate the left frame 41 and the right frame 42, respectively, and extend into the left frame 41 and the right frame 42.
Two groups of water pressing mechanisms 3 are arranged, each water pressing mechanism 3 comprises a water tank 31 fixed at the top of the bottom plate 1 through a support rod, the bottom of the water tank 31 is communicated with a water pumping pipe 36, a third electromagnetic valve 37 is fixedly connected inside the water pumping pipe 36, one end of a water inlet pipe 47, which is far away from the left frame body 41, is communicated with the bottom of the right side of the water tank 31, the front of the water tank 31 is fixedly connected with a central processing unit 6 through a fixed frame 5, the model of the central processing unit 6 is ARM9, a control panel 7 is fixedly connected to the front of the water tank 31 and positioned at the top of the fixed frame 5, telescopic rods 32 are fixedly connected to both sides of the water tank 31, the telescopic rods 32 are electric push rods and are ANT-52, movable plates 33 are fixedly connected to output ends of the two telescopic rods 32, connecting rods 34 are fixedly connected to both, a piston plate 35 is fixedly connected to one end of the two connecting rods 34 located inside the water tank 31.
The output of central processing unit 6 passes through the wire respectively with first solenoid valve 412, second solenoid valve 413, third solenoid valve 37, warning light 44, vacuum pump 43, telescopic link 32 and pressure sensor 45's input electric connection, pressure sensor 45's output passes through wire and comparison module 8's input electric connection, and comparison module 8's output passes through wire and feedback module 9's input electric connection, feedback module 9's output passes through wire and central processing unit 6's input electric connection, and central processing unit 6's output passes through wire and comparison module 8's input electric connection, control panel 7's output passes through wire and central processing unit 6's input electric connection.
The invention also discloses a full-automatic multifunctional water meter calibration method, which specifically comprises the following steps:
s1, installing the water meter to be measured: the bolts between the left frame body 41 and the right frame body 42 are screwed off, the left frame body 41 and the right frame body 42 are opened, and then the water meter to be detected is arranged between the water inlet pipe 47 and the water outlet pipe 48, so that the water inlet pipe 47 is communicated with the water outlet pipe 48 through the water meter to be detected;
s2, vacuumizing: setting a pressure threshold value through the control panel 7, closing the first electromagnetic valve 412 and the second electromagnetic valve 413, enabling the vacuum pump 43 to work, vacuumizing the space between the left frame body 41 and the right frame body 42, and stopping the vacuum pump 43 until the value detected by the pressure sensor 45 is the same as the set pressure threshold value;
s3, measuring the sealing performance of the joint of the water meter to be measured: the pressure sensor 45 detects the pressure in the left frame body 41 and the right frame body 42 in real time, and transmits the detected value to the comparison module 8, the comparison module 8 compares the detected value with a set pressure threshold value, then transmits the comparison result to the central processing unit 6 through the feedback module 9, opens the second electromagnetic valve 413, if the value detected by the pressure sensor 45 is always equal to the set pressure threshold value, it indicates that the connection tightness between the water meter to be measured and the water inlet pipe 47 and the water outlet pipe 48 is good, the subsequent verification work can be performed, if the detected pressure value is smaller than the set pressure threshold value, it indicates that the connection between the water meter to be measured and the water inlet pipe 47 and the water outlet pipe 48 leaks, at this time, the central processing unit 6 controls the alarm lamp 44 to be on, and the installation of the water meter to be measured needs to be;
s4, pumping water: when the sealing performance of the joint of the water meter to be measured meets the requirement, the third electromagnetic valve 37 is opened, the telescopic rod 32 is extended, the movable plate 33 drives the piston plate 35 to move upwards through the connecting rod 34, and the third electromagnetic valve 37 is closed after a certain amount of water is pumped into the water tank 31;
s5, water meter accuracy verification: the first electromagnetic valve 412 is opened, the telescopic rod 32 is contracted according to a set speed, the piston plate 35 is driven to move downwards, water in the water tank 31 flows through the water meter to be measured through the water inlet pipe 47 and then flows out through the water outlet pipe 48 until all water in the water tank 31 is discharged, and the water flow measured by the water meter to be measured is compared with the water flow in the water tank 31 to measure the accuracy of the water meter.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a full-automatic multi-functional water gauge calibrating installation, includes bottom plate (1) and fixes supporting leg (2) in bottom plate (1) bottom, its characterized in that: a water pressing mechanism (3) is arranged on the left side of the top of the bottom plate (1), and a vacuumizing mechanism (4) is arranged on the right side of the top of the bottom plate (1);
the vacuumizing mechanism (4) comprises a left frame body (41), a right frame body (42) and a vacuum pump (43), a left fixedly connected alarm lamp (44) at the top of the left frame body (41) is connected with a pressure sensor (45) at the top of the inner wall of the left frame body (41), an air inlet of the vacuum pump (43) is communicated with an air inlet pipe (46), one end, far away from the vacuum pump (43), of the air inlet pipe (46) is communicated with the top of the right frame body (42), a left fixedly connected inlet pipe (47) of the left frame body (41) is connected with a right outlet pipe (48) of the right frame body (42), and the inlet pipe (47) and the outlet pipe (48) relatively obtain one end which penetrates through the left frame body (41) and the right frame body (42) respectively and extends to the inside of the left frame body (41) and the.
2. A full automatic multifunctional water meter calibrating installation according to claim 1, characterized in that: the left frame body (41) and the right frame body (42) are fixedly connected between opposite sides through bolts, the vacuum pump (43) is fixed to the top of the bottom plate (1) through a supporting block (49), sliders (410) are fixedly connected to the bottoms of the left frame body (41) and the right frame body (42), and the bottoms of the two sliders (410) are connected with the top of the bottom plate (1) in a sliding mode through sliding rails (411).
3. A full automatic multifunctional water meter calibrating installation according to claim 1, characterized in that: one end, far away from the right frame body (42), of the water outlet pipe (48) penetrates through the supporting block (49) and extends to the right side of the supporting block (49), the first electromagnetic valve (412) is fixedly connected to the inside of the water inlet pipe (47) and located on the outer portion of the left frame body (41), and the second electromagnetic valve (413) is fixedly connected to the inside of the water outlet pipe (48) and located on the right side of the supporting block (49).
4. A full automatic multifunctional water meter calibrating installation according to claim 1, characterized in that: the water pressing mechanism (3) comprises a water tank (31) fixed to the top of the base plate (1) through a support rod, two side-equal fixedly connected telescopic rods (32) of the water tank (31) are arranged, two output-end fixedly connected movable plates (33) of the two telescopic rods (32) are arranged, two side-equal fixedly connected connecting rods (34) of the bottom of the movable plates (33) are arranged, and the bottom end of each connecting rod (34) penetrates through the water tank (31) and extends to the water tank (31) and is located on one end of a piston plate (35) inside the water tank (31).
5. A full-automatic multi-functional water gauge calibrating installation of claim 4, characterized in that: the bottom intercommunication of water tank (31) has drinking-water pipe (36) to the inside fixedly connected with third solenoid valve (37) of drinking-water pipe (36), the one end that left framework (41) was kept away from in inlet tube (47) is linked together with the bottom on water tank (31) right side, the front of water tank (31) is through fixed frame (5) fixedly connected with central processing unit (6), the front of water tank (31) just is located top fixedly connected with control panel (7) of fixed frame (5).
6. A full-automatic multi-functional water gauge calibrating installation of claim 5, characterized in that: the output end of the central processing unit (6) is respectively electrically connected with the input ends of the first electromagnetic valve (412), the second electromagnetic valve (413), the third electromagnetic valve (37), the alarm lamp (44), the vacuum pump (43), the telescopic rod (32) and the pressure sensor (45) through wires, the output end of the pressure sensor (45) is electrically connected with the input end of the comparison module (8) through wires, and the output end of the comparison module (8) is electrically connected with the input end of the feedback module (9) through wires.
7. A full-automatic multi-functional water gauge calibrating installation of claim 6, characterized in that: the output end of the feedback module (9) is electrically connected with the input end of the central processing unit (6) through a wire, the output end of the central processing unit (6) is electrically connected with the input end of the comparison module (8) through a wire, and the output end of the control panel (7) is electrically connected with the input end of the central processing unit (6) through a wire.
8. A fully automatic multifunctional water meter calibrating device according to any one of claims 1-7, characterized in that: the detection method specifically comprises the following steps:
s1, installing the water meter to be measured: the bolt between the left frame body (41) and the right frame body (42) is screwed off, the left frame body (41) and the right frame body (42) are opened, then the water meter to be detected is installed between the water inlet pipe (47) and the water outlet pipe (48), and the water inlet pipe (47) is communicated with the water outlet pipe (48) through the water meter to be detected;
s2, vacuumizing: setting a pressure threshold value through a control panel (7), closing a first electromagnetic valve (412) and a second electromagnetic valve (413), enabling a vacuum pump (43) to work, vacuumizing the space between a left frame body (41) and a right frame body (42), and stopping the vacuum pump (43) until the value detected by a pressure sensor (45) is the same as the set pressure threshold value;
s3, measuring the sealing performance of the joint of the water meter to be measured: the pressure sensor (45) detects the pressure in the left frame body (41) and the right frame body (42) in real time, the detected numerical value is transmitted to the comparison module (8), the comparison module (8) compares the detected numerical value with a set pressure threshold value, then the comparison result is transmitted to the central processing unit (6) through the feedback module (9), the second electromagnetic valve (413) is opened, if the numerical value detected by the pressure sensor (45) is always equal to the set pressure threshold value, the connection tightness between the water meter to be detected and the water inlet pipe (47) and the water outlet pipe (48) is better, the subsequent verification work can be carried out, if the detected pressure numerical value is smaller than the set pressure threshold value, the leakage occurs at the connection part between the water meter to be detected and the water inlet pipe (47) and the water outlet pipe (48), and at the moment, the central processing unit (6) controls the alarm lamp (44) to be on, the installation of the water meter to be tested needs to be carried out again;
s4, pumping water: when the sealing performance of the joint of the water meter to be measured meets the requirement, the third electromagnetic valve (37) is opened, the telescopic rod (32) is extended, the movable plate (33) drives the piston plate (35) to move upwards through the connecting rod (34), and the third electromagnetic valve (37) is closed after a certain amount of water is pumped into the water tank (31);
s5, water meter accuracy verification: the first electromagnetic valve (412) is opened, the telescopic rod (32) is contracted according to a set speed, the piston plate (35) is driven to move downwards, water in the water tank (31) flows through the water meter to be measured through the water inlet pipe (47) and then flows out through the water outlet pipe (48) until all water in the water tank (31) is discharged, and the water flow measured by the water meter to be measured is compared with the water flow in the water tank (31) so as to measure the accuracy of the water meter.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113280896A (en) * | 2021-06-22 | 2021-08-20 | 沈朋 | Water meter sealing performance detection device and method |
| CN116519100A (en) * | 2023-07-03 | 2023-08-01 | 河北丰源智控科技股份有限公司 | Automatic verification system for water meter |
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