CN219368878U - Water meter calibrating device capable of quickly regulating flow - Google Patents
Water meter calibrating device capable of quickly regulating flow Download PDFInfo
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- CN219368878U CN219368878U CN202320602426.9U CN202320602426U CN219368878U CN 219368878 U CN219368878 U CN 219368878U CN 202320602426 U CN202320602426 U CN 202320602426U CN 219368878 U CN219368878 U CN 219368878U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
Abstract
The utility model relates to the technical field of water meter verification and discloses a water meter verification device capable of quickly regulating flow, which comprises a test pipeline, a pressure-stabilizing water supply module and a drainage pipeline, wherein a tested water meter and a standard component are arranged on the test pipeline, the standard component comprises a plurality of standard detection branches which are arranged in parallel, each standard detection branch is provided with a flow point control valve, the flow point control valves are configured to be opened to be matched with flow points to be tested of the tested water meter, and the flow points corresponding to the flow point control valves can be respectively matched with a plurality of flow points to be tested of the tested water meter; the pressure-stabilizing water supply module is connected with the test pipeline and is used for pumping a stable water source into the test pipeline; both ends of the test pipeline, which are positioned on the water meter to be tested, are provided with drainage pipelines. When the water meter calibration device detects the measured water meter, the corresponding flow point control valve is only required to be opened to be matched with the flow point to be measured of the measured water meter, adjustment is not required, and the detection efficiency is improved.
Description
Technical Field
The utility model relates to the technical field of water meter verification, in particular to a water meter verification device capable of rapidly adjusting flow.
Background
The water meter is a domestic metering device, and can be used after being qualified according to the requirement of the verification regulations in order to ensure accurate and reliable metering performance before installation and use.
The verification of water meters is typically performed on a laboratory water meter verification device or water flow standard device, during which a metrological verification protocol should be strictly performed. The national standard and the verification rules of the water meter provide specific parameters in the aspect of water meter metering performance, and particularly, the verification flow points have specific regulations.
With the improvement of the science and technology level in China, the metering performance of the water meter is greatly improved, the R value of the water meter reaches more than 1000, and the high measuring range ratio also becomes the 'dripping water measurable' target of the water meter. For the metering technical mechanism, the metering detection capability of the water meter verification device or the water flow standard device is updated along with the improvement of the performance of the water meter. In the verification and metering process of the water meter, the adjustment of small flow is a difficulty of working efficiency.
The current flow regulation method adopts an electric regulating valve or a pneumatic regulating valve to regulate the flow, and the flow is required to be repeatedly regulated until the flow is regulated to a verification flow point because the flow is small, and the process needs long-time operation, so that the working efficiency is seriously influenced. In particular to an electronic water meter with the caliber of DN 40-DN 300, the measuring range ratio is very wide, and the flow of Q2 and Q1 is very difficult to adjust relative to the caliber.
Disclosure of Invention
The utility model aims to provide a water meter calibrating device capable of rapidly adjusting flow, which solves the technical problems of long time required by repeated adjustment and low working efficiency in the existing adjusting mode.
To achieve the purpose, the utility model adopts the following technical scheme:
the utility model provides a water meter calibrating device capable of rapidly adjusting flow, which comprises:
the system comprises a test pipeline, wherein a measured water meter and a standard component are arranged on the test pipeline, the standard component comprises a plurality of standard detection branches which are arranged in parallel, two ends of the plurality of standard detection branches are converged and respectively connected with the test pipeline, each standard detection branch is provided with a flow point control valve, the flow point control valves are configured to be opened to be matched with a measured flow point of the measured water meter, and the flow points corresponding to the flow point control valves can be respectively matched with a plurality of measured flow points of the measured water meter;
the pressure-stabilizing water supply module is connected with the test pipeline and is used for pumping a stable water source into the test pipeline; a kind of electronic device with high-pressure air-conditioning system
And the drainage pipeline is arranged at the two ends of the test pipeline, which are positioned on the water meter to be tested.
The water meter calibration device capable of rapidly adjusting flow comprises a test pipeline, a pressure stabilizing water supply module and a drainage pipeline, wherein a measured water meter and a standard component are arranged on the test pipeline, the standard component comprises a plurality of standard detection branches which are arranged in parallel, each standard detection branch is provided with a flow point control valve, the flow point control valves are opened to match the flow points to be measured of the measured water meter, the flow points corresponding to the flow point control valves can be respectively matched with the flow points to be measured of the measured water meter, and therefore when the measured water meter is detected, the corresponding flow point control valve can be matched with the flow points to be measured of the measured water meter only by opening the corresponding flow point control valve, adjustment is not needed, and the detection efficiency is improved.
As an optimized scheme of the water meter verification device for rapidly regulating the flow, the flow points corresponding to the flow point control valves are at least matched with the small flow points to be detected of the measured water meter.
The flow points corresponding to the flow point control valves are at least matched with the small flow points to be detected of the water meter to be detected, so that the corresponding flow point control valves can be opened when the water meter to be detected detects the small flow points, the flow point control valves are not required to be adjusted, and the detection efficiency is improved.
As a preferable scheme of the water meter verification device for rapidly regulating the flow, the flow point control valve is a regulating valve.
The flow point control valve is a regulating valve so that the flow point control valve can be regulated to a required flow point under different pressure requirements, and the application range of the device is enlarged.
As an optimized scheme of the water meter verification device for rapidly adjusting the flow, a first switch valve is arranged at the water inlet end of the flow point control valve on each standard detection branch.
The first switch valves are arranged on the standard detection branches respectively to control the on-off of the standard detection branches respectively, and the control is flexible and convenient.
As an optimized scheme of the water meter verification device for rapidly adjusting the flow, at least one of the two drainage pipelines is provided with a drainage pump.
The setting of drain pump can shorten the time of drainage, improves work efficiency.
As an optimized scheme of the water meter verification device for rapidly adjusting the flow, a purging device is arranged at the water inlet end of the test pipeline, which is positioned on the tested water meter, and the purging device is used for introducing compressed gas into the test pipeline.
The purging device is used for introducing compressed gas into the test pipeline so as to quickly discharge water at two ends of the water meter to be tested; but also avoids residue.
As a preferable scheme of the water meter verification device for rapidly adjusting the flow, an air inlet valve is arranged on a pipeline of the purging device connected to the test pipeline.
The air inlet valve is used for controlling the on-off of the purging device and the test pipeline.
As an optimized scheme of the water meter verification device capable of rapidly adjusting flow, the pressure-stabilizing water supply module comprises a water supply unit and a pressure-stabilizing unit which are connected in series, wherein the water supply unit is used for pumping a water source into the test pipeline, and the pressure-stabilizing unit is used for stabilizing the pressure of the water source.
The pressure-stabilizing water supply module can pump a water source into the test pipeline through the water supply unit, so that the test can be performed; the voltage stabilizing unit is used for stabilizing the voltage of the water source so as to ensure the accuracy of the test.
As an optimized scheme of the water meter verification device for rapidly adjusting the flow, the water supply unit comprises a water tank and a water pump respectively connected with the water tank and the test pipeline.
The water supply unit accommodates a water source through the water tank, and pumps water into the test pipeline smoothly through the water pump.
As an optimized scheme of the water meter calibrating device for rapidly adjusting the flow, the pressure stabilizing unit adopts a pressure stabilizing tank.
The voltage stabilizing unit adopts the voltage stabilizing tank, has simple structure and can realize better voltage stabilizing effect.
The utility model has the beneficial effects that:
the water meter calibrating device capable of quickly adjusting the flow comprises a test pipeline, a pressure-stabilizing water supply module and a drainage pipeline, wherein a measured water meter and a standard component are arranged on the test pipeline, the standard component comprises a plurality of standard detection branches which are arranged in parallel, each standard detection branch is provided with a flow point control valve, the flow point control valves are opened to match the flow points to be measured of the measured water meter, the flow points corresponding to the plurality of flow point control valves can be respectively matched with the plurality of flow points to be measured of the measured water meter, and therefore when the measured water meter is detected, the corresponding flow point control valves can be matched with the flow points to be measured of the measured water meter without adjustment, and the detection efficiency is improved.
Drawings
FIG. 1 is a schematic diagram of a water meter verification device for rapidly adjusting flow provided by the utility model;
fig. 2 is a schematic structural diagram of a standard component of the water meter verification device for rapidly adjusting flow.
In the figure:
1. a test pipeline;
10. a measured water meter; 11. a standard component; 12. a second valve; 13. a third valve; 14. a meter clamping device; 15. a standard table; 111. a standard detection branch; 112. a flow point control valve; 113. a first switching valve;
2. a pressure-stabilizing water supply module; 21. a water supply unit; 211. a water tank; 212. a water pump; 213. a pump front switching valve; 214. a post-pump regulator valve; 22. a voltage stabilizing unit;
3. a drainage pipeline; 31. a draining pump; 32. a first drain valve; 33. a second drain valve;
4. a purge device; 41. an intake valve;
5. a water return line; 50. a back pressure pipe; 51. a commutator; 52. a backwater switch valve;
53. a gauge; 54. a water discharge valve of the standard measuring device; 55. and (5) a water drain pipe.
Detailed Description
The utility model is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present utility model are shown in the drawings.
In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "right", etc. orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and simplicity of operation, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.
The current flow regulation method adopts an electric regulating valve or a pneumatic regulating valve to regulate the flow, and the flow is required to be repeatedly regulated until the flow is regulated to a verification flow point because the flow is small, and the process needs long-time operation, so that the working efficiency is seriously influenced.
In order to solve the above problems, as shown in fig. 1, a water meter verification device for quickly adjusting flow includes a test pipeline 1, a pressure-stabilizing water supply module 2 and a drainage pipeline 3, a tested water meter 10 and a standard component 11 are disposed on the test pipeline 1, the standard component 11 includes a plurality of standard detection branches 111 disposed in parallel, two ends of the plurality of standard detection branches 111 are converged and respectively connected to the test pipeline 1, each standard detection branch 111 is provided with a flow point control valve 112, the flow point control valves 112 are opened to match the flow points to be tested of the tested water meter 10, and the flow points corresponding to the plurality of flow point control valves 112 can be respectively matched with the plurality of flow points to be tested of the tested water meter 10; the pressure-stabilizing water supply module 2 is connected with the test pipeline 1 and is used for pumping a stable water source into the test pipeline 1; both ends of the test pipeline 1, which are positioned on the measured water meter 10, are provided with drainage pipelines 3. The flow point control valves 112 are opened to match the flow points to be measured of the measured water meter 10, and the flow points corresponding to the flow point control valves 112 can be respectively matched with the flow points to be measured of the measured water meter, so that when the measured water meter 10 is detected, the corresponding flow point control valves 112 are only opened to be matched with the flow points to be measured of the measured water meter 10, adjustment is not needed, and detection efficiency is improved.
Specifically, the pressure-stabilizing water supply module 2 comprises a water supply unit 21 and a pressure-stabilizing unit 22 which are connected in series, wherein the water supply unit 21 is used for pumping a water source into the test pipeline 1 so as to ensure that a test can be carried out; the voltage stabilizing unit 22 is used for stabilizing the voltage of the water source so as to ensure the accuracy of the test.
Further, the water supply unit 21 includes a water tank 211 and a water pump 212 connected to the water tank 211 and the test line 1, respectively. The water supply unit 21 receives a water source through the water tank 211, and pumps the water into the test line 1 smoothly through the water pump 212. A pump front switch valve 213 is arranged on a pipeline between the water pump 212 and the water tank 211 to control the on-off of the pipeline between the water pump 212 and the water tank 211, a pump rear regulating valve 214 is arranged between the water pump 212 and the pressure stabilizing unit 22, and the flow of water entering the pressure stabilizing unit 22 is regulated through the pump rear regulating valve 214.
In this embodiment, the voltage stabilizing unit 22 adopts a voltage stabilizing tank, and the voltage stabilizing tank has a simple structure and can achieve a good voltage stabilizing effect. In other embodiments, the pressure stabilizing unit 22 is not limited to the pressure stabilizing tank, and may be other ways as long as the pressure of the water source can be stabilized.
As shown in fig. 1, the water meter calibrating device capable of quickly adjusting flow further comprises a water return pipeline 5, one end of the water return pipeline 5 is connected with the water outlet end of the test pipeline 1, the other end of the water return pipeline 5 is communicated with the water supply unit 21, and the test pipeline 1, the pressure-stabilizing water supply module 2 and the water return pipeline 5 form a circulating pipeline, so that water recycling is realized, and resources are saved. The water return pipeline 5 comprises a back pressure pipe 50, the back pressure pipe 50 is higher than the test pipeline 1, one end of the back pressure pipe 50 is connected with the test pipeline 1 through a pipeline, and the gas in the test pipeline 1 can be discharged through the back pressure pipe 50, so that the detection precision is improved; the back pressure pipe 50 is provided with a backwater switch valve 52, the other end of the back pressure pipe 50 is connected with a reverser 51, the reverser 51 is connected with two pipelines, one pipeline is provided with a standard gauge 53 and a standard gauge drain valve 54, and the other pipeline is communicated with the water tank 211 through a drain pipe 55. The two branches are reversed through the reverser 51, and the water can be directly discharged through the drain pipe 55; the standard meter 53 and the standard meter drain valve 54 can be used to verify the error of the water meter 10 to be tested. The specific verification of the flow rate of the water meter 10 to be tested by the standard meter 53 belongs to the prior art, and is not described herein.
Optionally, the measured water meter 10 is detachably mounted on the test pipeline 1, so that the measured water meter 10 can be conveniently dismounted, and the water meter calibrating device can calibrate water meters of different models. In this embodiment, the water meter 10 to be measured is mounted on the test line 1 through the meter holder 14. The structure of the meter clamping device 14 and how to mount the measured water meter 10 on the test pipeline 1 are all the prior art and will not be described herein.
In order to prevent risk of water in the test pipeline 1 from being sprayed out of the flow standard device, the dismounting personnel and the laboratory site environment when the water meter 10 to be tested is dismounted, as shown in fig. 1, a second valve 12 and a third valve 13 are respectively arranged at the water inlet end and the water outlet end of the water meter 10 to be tested, and when water is discharged, the second valve 12 and the third valve 13 are closed so as to intercept water flow in the test pipeline 1 at the position of the water meter 10 to be tested; when the water meter 10 to be tested is clamped or the device is used for normal detection, the second valve 12 and the third valve 13 are opened.
In order to improve the drainage efficiency, the problem of lower drainage efficiency caused by negative pressure in the drainage process is prevented, and a drainage pipeline 3 is respectively arranged at the water inlet end and the water outlet end of the test pipeline 1, which are positioned on the measured water meter 10. Specifically, drainage pipeline 3 includes drainage inlet tube, drain valve and drainage outlet pipe, and drainage inlet tube is linked together with test pipeline 1, and the drain valve sets up in the low reaches of drainage inlet tube, and the drainage outlet pipe sets up in the low reaches of drain valve, and drainage pipeline 3 extends from top to bottom to the discharge of water of being convenient for, in this embodiment, drainage pipeline 3 is mutually perpendicular with test pipeline 1.
Further, in order to avoid the waste of water resources, the water discharged from the water outlet end of the water discharge pipeline 3 flows into the water tank 211, namely, the water outlet of the water discharge pipe of the water discharge pipeline 3 and the tank opening of the water tank 211 are oppositely arranged, and the water discharge pipe of the water discharge pipeline 3 can extend into the water tank 211 to be communicated with the water tank 211, and the water is discharged into the water tank 211 through the water discharge pipe, so that the cyclic utilization of the water resources is realized.
For convenience of description, the water draining pipeline 3 at the water inlet end of the measured water meter 10 is a first water draining pipeline, the water draining pipeline 3 at the water outlet end of the measured water meter 10 is a second water draining pipeline, the water draining pump 31 is arranged on the first water draining pipeline or the second water draining pipeline, and water on the test pipeline 1 between the second water draining valve 33 and the second water draining valve 32 is pumped through the water draining pump 31, so that rapid water draining is realized. Of course, the drain pump 31 may be provided on both the first drain line and the second drain line.
In this embodiment, the drain pump 31 and the first drain valve 32 are disposed on the first drain pipe, the drain pump 31 is disposed on the drain pipe below the first drain valve 32, the second drain valve 33 is disposed on the second drain pipe, and the on/off of the corresponding drain pipe 3 is controlled by the first drain valve 32 and the second drain valve 33, respectively. By arranging the drainage pump 31 on the first drainage pipeline, the drainage time is shortened, and the working efficiency is improved; and the number of set-up groups of the drain pump 31 is reduced, thereby reducing the cost. Of course, the drain pump 31 may be provided on the second drain line.
Further, as shown in fig. 1, the test line 1 may be provided above the test line 1, and the water in the test line 1 may be rapidly discharged through the drain line 3 by blowing compressed gas, thereby avoiding residue.
Of course, the drain pump 31 and the purge device 4 may be provided at the same time to further improve the drain efficiency. In use, the drain pump 31 and the purge device 4 may be used independently in stages or simultaneously.
Optionally, each valve, drain pump 31, purge device 4 is connected to the control cabinet industrial personal computer through control lines to achieve automatic control.
The existing water meter calibrating device can be utilized for improvement, and the improvement mode is as follows:
1) The lower part of a test pipeline 1 of the water meter calibrating device is provided with an opening;
2) Welding a drainage water inlet pipe to an opening of the test pipeline 1;
3) A drain valve is arranged at the downstream of the drain water inlet pipe;
4) A drain pump 31 is installed downstream of the drain valve;
5) A drain pipe through which water is introduced into the water tank 211 is installed downstream of the drain pump 31;
6) A purging device 4 is additionally arranged at the upstream of an air inlet valve 41 above the test pipeline 1;
7) The valves, the drain valve, the air inlet valve 41, the drain pump 31 and the purging device 4 are connected to the control cabinet industrial personal computer through control lines;
8) The control of the drain valve, drain pump 31, and intake valve 41 is performed remotely in the control room.
By additionally arranging the drainage pump 31 and the purging device 4 in the test pipeline 1, the problems that negative pressure and slow drainage occur in the pipeline when the test section pipeline is drained after the front and rear straight pipe section switch valves of the tested water meter are closed are solved, and the quick drainage of the test pipeline 1 is realized.
It should be noted that the water meter verification device is not limited to be modified by the existing water meter verification device, and may be directly prepared according to the structure of the water meter verification device of the present utility model.
In order to shorten the time for adjusting the small flow point, as shown in fig. 2, the standard component 11 includes a plurality of standard detection branches 111 that are arranged in parallel, two ends of the plurality of standard detection branches 111 are converged and respectively connected to the test pipeline 1, each standard detection branch 111 is provided with a flow point control valve 112, the flow point control valves 112 are opened to match the flow points to be measured of the measured water meter 10, and the flow points corresponding to the plurality of flow point control valves 112 can be respectively matched with the plurality of flow points to be measured of the measured water meter 10, so that when the measured water meter 10 is detected, the corresponding flow point control valves 112 are only opened to be matched with the flow points to be measured of the measured water meter 10, no adjustment is needed, and the detection efficiency is improved.
Further, the flow points corresponding to the plurality of flow point control valves 112 are at least matched with the small flow point to be measured of the measured water meter 10, so that when the measured water meter 10 detects the small flow point, the corresponding flow point control valves 112 can be opened, and the flow point control valves 112 do not need to be adjusted, thereby improving the detection efficiency.
Preferably, the flow point control valve 112 is a regulating valve, so that the flow point control valve 112 can be regulated to a required flow point under different pressure requirements, and the application range of the device is increased. It should be noted that: in the case where the pressure is unchanged, there is no need to adjust the opening degree of the flow point control valve 112; only when the pressure changes, the opening degree of the flow point control valve 112 needs to be adjusted.
Optionally, the water inlet ends of the flow point control valves 112 on the standard detection branches 111 are respectively provided with a first switch valve 113 to respectively control the on-off state of the standard detection branches 111, so that the control is flexible and convenient. Preferably, the first switch valve 113 is an electric switch valve, the electric switch valve is electrically connected with a control device, and the control device controls the opening and closing of the electric switch valve to realize automatic control.
It should be noted that: in the verification process of the measured water meter 10, the flow is less than or equal to 1.6m 3 The flow point of/h is the small flow point.
The supplementary ones are:
the water meter 10 to be tested can be calibrated by the standard meter 53, and of course, as shown in fig. 1, the standard meter 15 is provided on the test pipeline 1, and the calibration of the flow rate of the water meter 10 to be tested is detected by the standard meter 15. The specific standard table 15 is related to how to implement verification of the water meter 10 under test, and is not described herein. The standard meter 53 and the standard meter 15 are two ways of calibrating the water meter 10 to be tested, and may be provided separately or simultaneously.
Further, the large flow point of the measured water meter 10 can be verified by the standard meter 15 or the standard meter 53, and the verification of the small flow point of the measured water meter 10 can be realized by the standard component 11.
The electronic water meter with the aperture of DN40 to DN300 is taken as the measured water meter 10 for specific description, because the measuring range ratio of the electronic water meter with the aperture of DN40 to DN300 is very wide, Q 2 、Q 1 The flow is very difficult to adjust relative to the caliber.
In order to solve the problems, a micro flow adjusting device (a standard component 11) is added on the test pipeline 1, so that the difficult problem of micro flow adjustment in the water meter verification process is well solved, and the water meter verification working efficiency is improved.
First, according to GB/T778.1-2018, section 1 of Drinking Cold Water and Hot Water meter: metering requirement and technical requirement, JJG 162-2019, water meter Q 3 The flow is correspondingly and fixedly compared with the caliber, and according to the R value (measuring range ratio) of the water meter, the corresponding relation can be determinedWater meter Q 2 、Q 1 The specific values of the flow rate are as follows:
water meter flow point table 1
Flow meter point table 2
From the two tables, 10 small flow points for DN 40-DN 300 caliber water meters are respectively: 0.025m 3 /h、0.04m 3 /h、0.063m 3 /h、0.1m 3 /h、0.16m 3 /h、0.25m 3 /h、0.4m 3 /h、0.63m 3 /h、1.0m 3 /h、1.6m 3 And/h. For these flow points, the standard component 11 is set on the test pipeline 1, the standard component 11 comprises 10 standard detection branches 111, each detection branch is provided with a first switch valve 113 and a flow point control valve 112, and the flow points of which the 10 flow point control valves 112 are opened are the same as the 10 flow points of the measured water meter 10. The specific operation is as follows:
1) 10 regulating valves, which are calibrated under the condition of relatively constant water pressure, wherein the 10 small flow points are respectively assigned by the regulating valves with the serial numbers of 1 to 10;
2) When the corresponding flow point is required, the first switch valve 113 before the corresponding flow point control valve 112 is opened, so that the flow point required to be adjusted can be reached.
3) After the flow point verification is finished, the first switch valve 113 is closed, and the flow point verification is finished;
4) And opening the next flow point corresponding to the first switch valve 113 according to the flow point requirement, and verifying the next flow point.
By additionally arranging the flow point control valve 112 on the test pipeline 1, the difficult problem of quick and accurate adjustment of the micro flow of the DN 40-DN 300 caliber water meter is solved, quick adjustment is realized, and the working efficiency is improved.
It is to be understood that the above examples of the present utility model are provided for clarity of illustration only and are not limiting of the embodiments of the present utility model. Various obvious changes, rearrangements and substitutions can be made by those skilled in the art without departing from the scope of the utility model. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.
Claims (10)
1. Water gauge calibrating installation of quick regulation flow, its characterized in that includes:
the water meter testing device comprises a test pipeline (1), wherein a tested water meter (10) and a standard component (11) are arranged on the test pipeline (1), the standard component (11) comprises a plurality of standard detection branches (111) which are arranged in parallel, two ends of the standard detection branches (111) are converged and are respectively connected to the test pipeline (1), each standard detection branch (111) is provided with a flow point control valve (112), and the flow point control valves (112) are configured to be opened to be matched with flow points to be tested of the tested water meter (10), and the flow points corresponding to the flow point control valves (112) can be respectively matched with a plurality of flow points to be tested of the tested water meter (10);
the pressure-stabilizing water supply module (2) is connected with the test pipeline (1) and is used for pumping a stable water source into the test pipeline (1); a kind of electronic device with high-pressure air-conditioning system
The drainage pipeline (3) is arranged at two ends of the test pipeline (1) which are positioned at the measured water meter (10), and the drainage pipeline (3) is arranged at two ends of the test pipeline.
2. The rapid flow adjustment water meter verification device of claim 1, wherein the flow points corresponding to the plurality of flow point control valves (112) are at least matched to a small flow point to be measured of the water meter under test (10).
3. The rapid flow regulating water meter verification device of claim 1, wherein the flow point control valve (112) is a regulator valve.
4. The water meter verification device for quickly adjusting flow according to claim 1, wherein a first switch valve (113) is arranged on each standard detection branch (111) at the water inlet end of the flow point control valve (112).
5. The rapid flow regulating water meter verification device according to any one of claims 1 to 4, wherein a drain pump (31) is provided on at least one of the drain lines (3) of the two drain lines (3).
6. The water meter verification device for rapidly adjusting flow according to any one of claims 1-4, wherein a purge device (4) is arranged at a water inlet end of the test pipeline (1) located at the tested water meter (10), and the purge device (4) is used for introducing compressed gas into the test pipeline (1).
7. The rapid flow regulating water meter verification device according to claim 6, wherein the purge means (4) is provided with an air inlet valve (41) on the line connected to the test line (1).
8. The rapid flow regulating water meter verification device according to any one of claims 1 to 4, wherein the regulated water supply module (2) comprises a water supply unit (21) and a regulated unit (22) connected in series, the water supply unit (21) being configured to pump a water source into the test line (1), the regulated unit (22) being configured to regulate the pressure of the water source.
9. The rapid flow regulating water meter verification device of claim 8, wherein the water supply unit (21) comprises a water tank (211) and a water pump (212) connected to the water tank (211) and the test line (1), respectively.
10. The rapid flow regulating water meter verification device of claim 8, wherein the pressure stabilizing unit (22) employs a pressure stabilizing tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320602426.9U CN219368878U (en) | 2023-03-24 | 2023-03-24 | Water meter calibrating device capable of quickly regulating flow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320602426.9U CN219368878U (en) | 2023-03-24 | 2023-03-24 | Water meter calibrating device capable of quickly regulating flow |
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| CN219368878U true CN219368878U (en) | 2023-07-18 |
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| CN202320602426.9U Active CN219368878U (en) | 2023-03-24 | 2023-03-24 | Water meter calibrating device capable of quickly regulating flow |
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| CN (1) | CN219368878U (en) |
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2023
- 2023-03-24 CN CN202320602426.9U patent/CN219368878U/en active Active
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