CN212621023U - Ultrasonic flowmeter detection device - Google Patents
Ultrasonic flowmeter detection device Download PDFInfo
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- CN212621023U CN212621023U CN202021341993.6U CN202021341993U CN212621023U CN 212621023 U CN212621023 U CN 212621023U CN 202021341993 U CN202021341993 U CN 202021341993U CN 212621023 U CN212621023 U CN 212621023U
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Abstract
The embodiment of the utility model discloses an ultrasonic flowmeter detection device relates to and detects technical field, can detect the zero flow drift condition of ultrasonic flowmeter under different temperature conditions. The device comprises at least one inert injection pipe, at least one exhaust pipe and a temperature-adjustable controllable temperature cabin; the first end of the inert injection pipe is positioned in the controllable temperature bin and is used for being connected with the first end of a test pipeline of the ultrasonic flowmeter; the first end of the exhaust pipe is located in the temperature-controllable bin and is used for being connected with the second end of a testing pipeline of the ultrasonic flowmeter. The utility model is suitable for a detect ultrasonic flowmeter's zero flow drift condition.
Description
Technical Field
The utility model relates to a detect technical field, especially relate to an ultrasonic flowmeter detection device.
Background
Ultrasonic flow meters are meters that measure flow by detecting the effect of fluid flow on an ultrasonic beam (or pulse). The ultrasonic flowmeter mainly comprises an ultrasonic transducer (or an ultrasonic flow sensor consisting of the transducer and a measuring pipe) and a converter, wherein the ultrasonic transducer is arranged on the measuring pipe.
Before the ultrasonic flowmeter is put into the market, a manufacturer generally detects the zero flow drift condition of the ultrasonic flowmeter through a detection device, so that the delivery quality of the ultrasonic flowmeter is ensured; however, the current detection devices perform zero flow detection on the ultrasonic flow meter at normal temperature, and do not test whether zero flow drift occurs when the ultrasonic flow meter is used in a high-temperature or low-temperature environment.
Disclosure of Invention
In view of this, the embodiment of the present invention provides an ultrasonic flowmeter detecting device, which can detect the zero flow drift condition of an ultrasonic flowmeter under different temperature conditions.
The embodiment of the utility model provides an ultrasonic flowmeter detection device, including at least one notes idle pipe, at least one blast pipe and temperature-adjustable controllable temperature storehouse; the first end of the inert injection pipe is positioned in the controllable temperature bin and is used for being connected with the first end of a test pipeline of the ultrasonic flowmeter; the first end of the exhaust pipe is located in the temperature-controllable bin and is used for being connected with the second end of a testing pipeline of the ultrasonic flowmeter.
Optionally, the device further comprises a high-pressure inert gas bottle and an inert gas conveying pipe, the high-pressure inert gas bottle is arranged outside the temperature-controllable bin, the first end of the inert gas conveying pipe is connected with the high-pressure inert gas bottle, and the second end of the inert gas conveying pipe is connected with the second end of the inert gas injection pipe.
Optionally, a first electromagnetic valve is arranged on the inert gas conveying pipe.
Optionally, the inert gas conveying pipe is further provided with a pressure reducing valve.
Optionally, the device further comprises a vacuum pump and a vacuum tube, the vacuum pump is located outside the temperature-controllable bin, the first end of the vacuum tube is connected with the vacuum pump, and the second end of the vacuum tube is connected with the second end of the exhaust tube.
Optionally, the second end of the exhaust pipe is further connected with an air outlet pipe, the first end of the air outlet pipe is located outside the temperature-controllable bin, and the second end of the air outlet pipe is connected with the second end of the exhaust pipe.
Optionally, a second electromagnetic valve is arranged on the vacuum tube, and a third electromagnetic valve is arranged on the air outlet tube.
Optionally, a fourth electromagnetic valve is arranged on the idle injection pipe, and a fifth electromagnetic valve is arranged on the exhaust pipe.
Optionally, the device further includes a controller, and the controller is respectively connected to the first solenoid valve, the second solenoid valve, the third solenoid valve, the fourth solenoid valve, and the fifth solenoid valve, and is configured to control opening and closing of the first solenoid valve, the second solenoid valve, the third solenoid valve, the fourth solenoid valve, and the fifth solenoid valve.
Optionally, the controller is further configured to be connected to an ultrasonic flow meter, and configured to read and display a gas flow rate measured by the ultrasonic flow meter; and/or the controller is also connected with the temperature-controllable bin and is used for controlling the temperature in the temperature-controllable bin.
The embodiment of the utility model provides an ultrasonic flowmeter detection device, including at least one notes idle pipe, at least one blast pipe and temperature-adjustable controllable temperature storehouse; the first end of the inert injection pipe is positioned in the controllable temperature bin and is used for being connected with the first end of a test pipeline of the ultrasonic flowmeter; the first end of the exhaust pipe is located in the temperature-controllable bin and is used for being connected with the second end of a testing pipeline of the ultrasonic flowmeter. Therefore, when the ultrasonic flowmeter is subjected to zero flow drift test, the temperature of the controllable temperature bin is adjusted to the design temperature, then the ultrasonic flowmeter to be tested is installed in the controllable temperature bin, two ends of a test pipeline of the ultrasonic flowmeter are respectively connected with an inerting injection pipe and an exhaust pipe, then inert gas is injected into the test pipeline through the inerting injection pipe, and at the moment, air in the test pipeline is exhausted through the exhaust pipe; after the air in the test pipeline is completely discharged and filled with inert gas, sealing the inert gas injection pipe and the exhaust pipe for a period of time, and observing the gas flow rate reading of the ultrasonic flowmeter; when the zero flow drift condition of the ultrasonic flowmeter at other design temperatures needs to be tested, the temperature of the controllable temperature bin is adjusted to other design temperatures, and the gas flow velocity indication of the ultrasonic flowmeter is observed after the pressure and the temperature in a test pipeline of the ultrasonic flowmeter are stable for a period of time; therefore, the ultrasonic flowmeter detection device can detect the zero flow drift condition of the ultrasonic flowmeter under different temperature conditions.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a detection device of an ultrasonic flow meter according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a connection state between an ultrasonic flowmeter detecting device and an ultrasonic flowmeter having a test pipeline according to an embodiment of the present invention;
fig. 3 is a schematic view of a connection state between an ultrasonic flowmeter detecting device and an ultrasonic flowmeter having more than one test pipeline according to an embodiment of the present invention.
Detailed Description
The embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
It should be understood that the described embodiments are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
The embodiment of the utility model provides a pair of ultrasonic flowmeter detection device can detect the zero flow drift condition of ultrasonic flowmeter under different temperature conditions.
As shown in fig. 1, an ultrasonic flow meter detection device provided by the embodiment of the present invention includes at least one inert gas injection pipe 1, at least one exhaust pipe 2, and a controllable temperature chamber 3 with adjustable temperature; the first end of the inert injection pipe 1 is positioned in the controllable temperature bin 3 and is used for being connected with the first end of a test pipeline of the ultrasonic flowmeter; the first end of the exhaust pipe 2 is located in the temperature-controllable bin 3 and is used for being connected with the second end of a test pipeline of the ultrasonic flowmeter.
In this embodiment, the inerting tube is used to deliver an inert gas into a test pipe of the ultrasonic flowmeter to be tested, and the exhaust tube is used to lead out air in the test pipe before the test is started and lead out the inert gas in the test pipe after the test is finished.
As shown in fig. 2, when the ultrasonic flowmeter 9 to be tested has a testing pipeline, one of the idler injection pipes 1 is matched with one of the exhaust pipes 2, so that the zero flow drift test of the ultrasonic flowmeter 9 can be realized; since the ultrasonic flow meter detection device provided by this embodiment may have more than one inerter injection pipe 1 and more than one exhaust pipe 2, the detection device can perform the zero flow drift test on more than one ultrasonic flow meter 9 at the same time.
As shown in fig. 3, when the ultrasonic flow meter 9 to be tested has more than one test pipeline, the detection device provided in this embodiment may test multiple test pipelines of the same ultrasonic flow meter 9, and when the number of the idle injection pipes 1 and the number of the exhaust pipes 2 of the detection device are sufficiently large, the detection device may also implement zero flow drift detection on multiple ultrasonic flow meters 9 at the same time.
Optionally, in the above embodiment, when the ultrasonic flowmeter has more than one test pipe, the nominal diameters of the test pipes are often different from each other; at this time, in order to facilitate the butt joint with each test pipeline of the ultrasonic flowmeter, the detection device can be provided with various idle injection pipes and exhaust pipes with different nominal diameters. For example: the detection device is provided with idle injecting pipes of specifications such as DN25, DN32 and DN200, and each idle injecting pipe is also matched with an exhaust pipe with the same nominal diameter as the idle injecting pipe.
The controllable temperature bin can be a small experiment bin provided with an air conditioner, and the controllable temperature bin can also adjust the temperature in other modes, such as cooling through refrigeration equipment, heating through electric heating equipment and the like.
When the ultrasonic flowmeter is subjected to zero flow drift test, the ultrasonic flowmeter detection device provided by the embodiment only needs to adjust the temperature of the controllable temperature bin to the design temperature, then the ultrasonic flowmeter to be tested is installed in the controllable temperature bin, two ends of a test pipeline of the ultrasonic flowmeter are respectively connected with the inerting injection pipe and the exhaust pipe, then inert gas is injected into the test pipeline through the inerting injection pipe, and at this time, air in the test pipeline is exhausted through the exhaust pipe; and after the air in the test pipeline is completely discharged and filled with inert gas, sealing the inert gas injection pipe and the exhaust pipe for a period of time, and observing the gas flow rate reading of the ultrasonic flowmeter. When the ultrasonic flowmeter needs to be tested under the zero flow drift condition of other design temperatures, the temperature of the controllable temperature cabin is only required to be adjusted to other design temperatures, and the gas flow velocity indication of the ultrasonic flowmeter is observed after the pressure and the temperature in the test pipeline of the ultrasonic flowmeter are stable for a period of time. In this way, the temperature of the controllable temperature chamber can be adjusted, so that the ultrasonic flowmeter detection device can detect the zero flow drift condition of the ultrasonic flowmeter under different temperature conditions.
It should be appreciated that in the above embodiment, when performing a zero flow drift test on an ultrasonic flowmeter, the temperature of the controllable temperature chamber may be adjusted to a design temperature prior to installing the ultrasonic flowmeter to be tested; the temperature of the temperature-controllable bin can be adjusted to the design temperature after the inert injection pipe and the exhaust pipe are closed; of course, the temperature of the controllable temperature chamber can be adjusted to the design temperature between any two other operation steps, and only after the temperature of the controllable temperature chamber is adjusted to the design temperature, the user needs to wait for a period of time, and after the temperature and the pressure in the controllable temperature chamber are stable, the gas flow rate indication of the ultrasonic flowmeter is observed. Alternatively, the time for waiting for the temperature and pressure in the controllable temperature chamber to stabilize may be about 15 minutes when the design temperature is near the ambient temperature, and may be about 2 hours when the design temperature is far higher or far lower than the ambient temperature, for example, when the design temperature is 50 ℃.
The idle injection pipe and the exhaust pipe can be opened or closed through a valve body, as shown in fig. 1, optionally, a fourth electromagnetic valve 11 may be disposed on the idle injection pipe 1, and a fifth electromagnetic valve 21 may be disposed on the exhaust pipe 2.
As shown in fig. 1, optionally, the apparatus further includes a high-pressure inert gas bottle 4 and an inert gas delivery pipe 5, the high-pressure inert gas bottle 4 is disposed outside the temperature-controllable bin 3, a first end of the inert gas delivery pipe 5 is connected to the high-pressure inert gas bottle 4, and a second end of the inert gas delivery pipe 5 is connected to the second end of the inert gas injection pipe 1.
This embodiment can pass through the high pressure inert gas bottle provides inert gas (for example nitrogen gas) to the ultrasonic flowmeter under test, the high pressure inert gas bottle sets up the outside in controllable temperature storehouse compares in the inside scheme of setting in controllable temperature storehouse, under the condition of testing equal quantity ultrasonic flowmeter, can effectively reduce the volume in controllable temperature storehouse on the one hand, and on the other hand can also reduce the influence of high pressure inert gas bottle to temperature in the controllable temperature storehouse, improves the stability of the inside temperature in controllable temperature storehouse.
As shown in fig. 1, in the above embodiment, when the number of the inerter injection pipes 1 is more than one, the second end of each inerter injection pipe 1 may be connected to the second end of the inerter delivery pipe 5. Thus, one inert gas conveying pipe can realize the supply of inert gases of a plurality of inert gas injecting pipes.
As shown in fig. 1, optionally, in the above embodiment, the inert gas delivery pipe 5 is provided with a first solenoid valve 51. In this embodiment, the first solenoid valve is used to control the delivery of the inert gas.
As shown in fig. 1, a pressure reducing valve 52 is optionally further provided on the inert gas delivery pipe 5. In this embodiment, since the pressure of the inert gas output from the high-pressure inert gas bottle may exceed the working range of the ultrasonic flow meter, the pressure value of the inert gas may be adjusted to be within the working range of the ultrasonic flow meter to be tested by the pressure reducing valve, for example, the pressure value of the inert gas may be adjusted to be the maximum working pressure of the ultrasonic flow meter.
As shown in fig. 1, optionally, the apparatus further includes a vacuum pump 6 and a vacuum tube 7, the vacuum pump 6 is located outside the temperature-controllable chamber 3, a first end of the vacuum tube 7 is connected to the vacuum pump 6, and a second end of the vacuum tube 7 is connected to the second end of the exhaust tube 2.
In this embodiment, before injecting the inert gas into the test pipeline of the ultrasonic flowmeter to be tested, the inside of the test pipeline may be evacuated by the vacuum pump to a vacuum state, and then the inert gas is injected; therefore, impurities such as dust, water vapor and the like in the test pipeline can be greatly reduced, and the test precision of the zero flow drift of the ultrasonic flowmeter is improved.
In the above embodiment, as shown in fig. 1, the vacuum tube 7 may be provided with a second solenoid valve 71, so that after the vacuum pumping is completed, the second solenoid valve may be closed, and then an inert gas may be injected into the test tube.
As shown in fig. 1, optionally, the second end of the exhaust pipe 2 is further connected to an outlet pipe 8, a first end of the outlet pipe 8 is located outside the controllable temperature chamber 3, and a second end of the outlet pipe 8 is connected to the second end of the exhaust pipe 2.
In this embodiment, when the number of the exhaust pipes is more than one, the second end of each exhaust pipe may be connected to the second end of the exhaust pipe, so that the exhaust pipes may exhaust outwards through one exhaust pipe.
After the test work is finished, the inert gas in the test tube of the tested ultrasonic flowmeter can be discharged to the outside of the controllable temperature cabin through the gas outlet tube, so that the situation that a large amount of inert gas is repelled in the controllable temperature cabin and the personal safety of workers is threatened can be avoided compared with the scheme that the inert gas is directly discharged to the inside of the controllable temperature cabin.
As shown in fig. 1, optionally, in the above embodiment, the outlet pipe 8 is provided with a third electromagnetic valve 81. In this embodiment, the third electromagnetic valve may be kept in a closed state in any step other than the step of discharging the inert gas to the outside of the controllable temperature chamber.
Optionally, the apparatus may further include a controller, and the controller is connected to the first solenoid valve, the second solenoid valve, the third solenoid valve, the fourth solenoid valve, and the fifth solenoid valve, and is configured to control opening and closing of the first solenoid valve, the second solenoid valve, the third solenoid valve, the fourth solenoid valve, and the fifth solenoid valve.
In this embodiment, when the ultrasonic flowmeter is subjected to the zero flow drift test, the controller can control to open the second electromagnetic valve and a fifth electromagnetic valve on an exhaust pipe connected with the ultrasonic flowmeter, and the other electromagnetic valves are all closed; then opening the vacuum pump to evacuate air in the ultrasonic flowmeter test pipeline; then the controller controls to close the second electromagnetic valve and the fifth electromagnetic valve and open the first electromagnetic valve and a fourth electromagnetic valve on an inerting injection pipe connected with the ultrasonic flowmeter; then adding high-pressure inert gas into the test pipeline by adjusting the pressure reducing valve and pressurizing to the working pressure of the ultrasonic flowmeter; and finally, the controller controls to close the first electromagnetic valve and the fourth electromagnetic valve, so that two ends of a test pipeline of the ultrasonic flowmeter are in a sealed state, and after the pressure and the temperature in the pipeline to be measured are stabilized for a period of time, the flow rate of each test pipeline of the ultrasonic flowmeter is observed and recorded. The controller enables collective operation of a plurality of the solenoid valves when testing a plurality of test conduits of an ultrasonic flow meter.
Optionally, in the above embodiment, the controller is further configured to be connected to an ultrasonic flow meter, and configured to read and display the gas flow rate measured by the ultrasonic flow meter. In this embodiment, the controller can realize intelligent reading and displaying of the test result; optionally, the controller may be disposed outside the controllable temperature cabin, so that a worker can obtain a test result outside the controllable temperature cabin without entering the controllable temperature cabin.
Optionally, the controller may be further connected to the temperature-controllable bin, and configured to control a temperature in the temperature-controllable bin. Thus, intelligent control of the temperature in the controllable temperature bin can be realized.
Alternatively, in the above embodiment, the opening and closing time of each electromagnetic valve, the temperature adjusting time of the controllable temperature chamber, the reading time of the gas flow rate, and the like may be set in advance by a software program, and the software program is executed by the controller, so that the automatic control of the whole testing process can be realized.
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. The term "comprising", without further limitation, means that the element so defined is not excluded from the group consisting of additional identical elements in the process, method, article, or apparatus that comprises the element.
All the embodiments in the present specification are described in a related manner, and the same and similar parts among the embodiments may be referred to each other, and each embodiment focuses on the differences from the other embodiments.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. The ultrasonic flowmeter detection device is characterized by comprising at least one inert injection pipe, at least one exhaust pipe and a temperature-adjustable controllable temperature cabin; wherein the content of the first and second substances,
the first end of the inert injection pipe is positioned in the controllable temperature bin and is used for being connected with the first end of a test pipeline of the ultrasonic flowmeter;
the first end of the exhaust pipe is located in the temperature-controllable bin and is used for being connected with the second end of a testing pipeline of the ultrasonic flowmeter.
2. The apparatus of claim 1, further comprising a high pressure inert gas bottle disposed outside the controlled temperature bin and an inert gas delivery tube having a first end connected to the high pressure inert gas bottle and a second end connected to the second end of the inert gas injection tube.
3. The apparatus of claim 2, wherein the inert gas delivery tube is provided with a first solenoid valve.
4. The apparatus of claim 3, wherein the inert gas delivery tube is further provided with a pressure relief valve.
5. The apparatus of claim 3, further comprising a vacuum pump and a vacuum tube, wherein the vacuum pump is located outside the controlled temperature chamber, and wherein a first end of the vacuum tube is connected to the vacuum pump and a second end of the vacuum tube is connected to a second end of the exhaust tube.
6. The device of claim 5, wherein the second end of the exhaust pipe is further connected with an air outlet pipe, the first end of the air outlet pipe is located outside the temperature-controllable bin, and the second end of the air outlet pipe is connected with the second end of the exhaust pipe.
7. The apparatus of claim 6, wherein the vacuum tube is provided with a second solenoid valve and the outlet tube is provided with a third solenoid valve.
8. The device of claim 7, wherein a fourth solenoid valve is arranged on the idler injecting pipe, and a fifth solenoid valve is arranged on the exhaust pipe.
9. The device of claim 8, further comprising a controller, wherein the controller is connected to the first solenoid valve, the second solenoid valve, the third solenoid valve, the fourth solenoid valve and the fifth solenoid valve respectively, and is configured to control the opening and closing of the first solenoid valve, the second solenoid valve, the third solenoid valve, the fourth solenoid valve and the fifth solenoid valve.
10. The device of claim 9, wherein the controller is further configured to be connected to an ultrasonic flow meter for reading and displaying the gas flow rate measured by the ultrasonic flow meter; and/or
The controller is also connected with the temperature-controllable bin and is used for controlling the temperature in the temperature-controllable bin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021341993.6U CN212621023U (en) | 2020-07-09 | 2020-07-09 | Ultrasonic flowmeter detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021341993.6U CN212621023U (en) | 2020-07-09 | 2020-07-09 | Ultrasonic flowmeter detection device |
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| Publication Number | Publication Date |
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| CN212621023U true CN212621023U (en) | 2021-02-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021341993.6U Active CN212621023U (en) | 2020-07-09 | 2020-07-09 | Ultrasonic flowmeter detection device |
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| CN (1) | CN212621023U (en) |
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- 2020-07-09 CN CN202021341993.6U patent/CN212621023U/en active Active
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