CN214309049U - Cylindrical gas calibration device - Google Patents
Cylindrical gas calibration device Download PDFInfo
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- CN214309049U CN214309049U CN202120059704.1U CN202120059704U CN214309049U CN 214309049 U CN214309049 U CN 214309049U CN 202120059704 U CN202120059704 U CN 202120059704U CN 214309049 U CN214309049 U CN 214309049U
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Abstract
The utility model discloses a gaseous calibration device of cylinder for mark gas flowmeter contains: the first calibration module is used for calibrating the large-flow gas flowmeter; the second calibration module is used for calibrating the small-flow gas flowmeter; and the electric valve is arranged between the first calibration module and the second calibration module and used for switching the first calibration module and the second calibration module. The utility model adopts the cylindrical shape, which greatly saves the use space, and the gravity center of the device is positioned at the gravity center of the geometric structure, the structure is stable, and the noise is small; moreover, the processing is convenient, and the space and the processing cost are reduced; meanwhile, the large-flow and small-flow gas flow meters can be calibrated simultaneously through the two calibration modules, the types of the calibratable flows are various, the operation is simple, and the product applicability is strong.
Description
Technical Field
The utility model relates to a gaseous calibration technical field of sensor, in particular to gaseous calibration device of cylinder.
Background
Gas flowmeter is a common instrument of measurement gas flow, just can measure gas flow after need demarcating gas flowmeter through gas calibration device, however, among the prior art, calibration device's structure is all comparatively loose, and area is big, in place and the limited scene in space, and is very inconvenient during the use, can't use even in a lot of scenes, has very big limitation.
SUMMERY OF THE UTILITY MODEL
According to the embodiment of the utility model provides a gaseous calibration device of cylinder for mark gas flowmeter contains:
the first calibration module is used for calibrating the large-flow gas flowmeter;
the second calibration module is used for calibrating the small-flow gas flowmeter;
and the electric valve is arranged between the first calibration module and the second calibration module and used for switching the first calibration module and the second calibration module.
Further, the first calibration module comprises:
the first stagnation container is a cylinder;
the first back pressure container is arranged above the first stagnation container and is a cylinder;
the first container connecting pipe sections are respectively connected with a first stagnation container and a first back pressure container, and are parallel to each other and form a circle;
the first sonic nozzles are respectively and correspondingly arranged in the first container connecting pipe sections;
the plurality of nozzle cylinders are respectively arranged on the first backpressure container, correspond to the plurality of first sonic nozzles one by one and are respectively used for controlling the working states of the corresponding first sonic nozzles;
the first negative pressure component is connected with the first back pressure container through a pipeline;
and the first air inlet assembly is connected with the first stagnation container through a pipeline.
Further, first negative pressure subassembly contains first centrifugal fan and the first surge tank that links to each other through the pipeline, and first surge tank passes through first back pressure container of pipe connection and first centrifugal fan respectively.
Further, the first air intake assembly includes: the gas flowmeter comprises a first front straight pipe section, a first rear straight pipe section and a first cylinder, wherein the first rear straight pipe section is connected with a first stagnation container, the first cylinder can drive the first front straight pipe section to reciprocate along the axial direction of the first front straight pipe section, and a large-flow gas flowmeter is fixed and sealed between the first front straight pipe section and the first rear straight pipe section.
Further, the first air intake assembly further comprises:
the first silencer is arranged at the air inlet of the first front straight pipe section;
the first sealing plug is arranged at an air inlet of the first rear straight pipe section and used for sealing the first rear straight pipe section when the first sealing plug is not fixed and seals the large-flow gas flow meter.
Further, the first air intake assembly further comprises: the first cylinder and the large-flow gas flowmeter are placed on the first lifting trolley.
Further, the second calibration module comprises:
the second stagnation container is a cylinder and is arranged horizontally;
the second backpressure container is a cylinder and is arranged on one side of the second stagnation container in parallel;
the plurality of second container connecting pipe sections are respectively connected with a second stagnation container and a second backpressure container, and are parallel to each other and form a circle;
the plurality of second sonic nozzles are respectively and correspondingly arranged in the plurality of second container connecting pipe sections;
the pneumatic angle valves are arranged on the second container connecting pipe sections in a one-to-one correspondence mode and are respectively used for controlling the working states of the second sonic nozzles;
the second centrifugal fan is connected with the second backpressure container through a pipeline;
and the second air inlet assembly is connected with the second stagnation container through a pipeline.
Further, the second air intake assembly includes: the gas flowmeter comprises a first front straight pipe section, a first rear straight pipe section and a first cylinder, wherein the first front straight pipe section is connected with a first stagnation container, the first cylinder can drive the first front straight pipe section to axially reciprocate along the first front straight pipe section, and a small-flow gas flowmeter is fixed and sealed between the first front straight pipe section and the first rear straight pipe section.
Further, the second air intake assembly further comprises:
the second silencer is arranged at the air inlet of the second front straight pipe section;
and the second sealing plug is arranged at the air inlet of the second rear straight pipe section and is used for sealing the second rear straight pipe section when the small-flow gas flowmeter is not fixed and sealed.
Further, the second air intake assembly further comprises: and a second cylinder and a small-flow gas flowmeter are arranged on the second lifting trolley.
According to the cylindrical gas calibration device provided by the embodiment of the utility model, the use space is greatly saved by adopting the cylindrical shape, and the gravity center of the device is positioned at the gravity center of the geometric structure, so that the structure is stable and the noise is low; moreover, the processing is convenient, and the space and the processing cost are reduced; meanwhile, the large-flow and small-flow gas flow meters can be calibrated simultaneously through the two calibration modules, the types of the calibratable flows are various, the operation is simple, and the product applicability is strong.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and are intended to provide further explanation of the claimed technology.
Drawings
Fig. 1 is a perspective view of a cylindrical gas calibration device according to an embodiment of the present invention;
fig. 2 is a front view of a first calibration module of a cylindrical gas calibration device according to an embodiment of the present invention;
FIG. 3 is an enlarged view of a portion of the first sonic nozzle of FIG. 2;
fig. 4 is a front view of a second calibration module of a cylindrical gas calibration device according to an embodiment of the present invention;
fig. 5 is a top view of a cylindrical gas calibration device according to an embodiment of the present invention.
Detailed Description
The present invention will be further described with reference to the following detailed description of preferred embodiments thereof, which is to be read in connection with the accompanying drawings.
First, a cylindrical gas calibration device according to an embodiment of the present invention will be described with reference to fig. 1 to 5, which is used for calibrating a gas flowmeter and has a wide application range.
As shown in fig. 1 and 5, the cylindrical gas calibration device of the embodiment of the present invention has a first calibration module, a second calibration module, and an electric valve 3. The first calibration module and the second calibration module are respectively used for calibrating a large-flow gas flowmeter (not shown in the figure) and a small-flow gas flowmeter 4, the large-flow gas flowmeter and the small-flow gas flowmeter can be calibrated simultaneously through the two calibration modules, the types of flow which can be calibrated are various, the operation is simple, and the product applicability is strong.
Specifically, as shown in fig. 1 to 3 and 5, the first calibration module includes: the device comprises a first stagnation container 11, a first back pressure container 12, a plurality of first container connecting pipe sections 13, a plurality of first sonic nozzles 14, a plurality of nozzle cylinders 15, a first negative pressure assembly 16 and a first air inlet assembly 17.
Further, as shown in fig. 1-2, the first stagnation container 11 is a cylinder; the first backpressure container 12 is arranged above the first stagnation container 11, and the first backpressure container 12 is a cylinder; the plurality of first container connecting pipe sections 13 are respectively connected with the first stagnation container 11 and the first back pressure container 12, and the plurality of first container connecting pipe sections 13 are parallel to each other and enclose a circle. The cylindrical shape greatly saves the use space, and the gravity center of the device is positioned at the gravity center of the geometric structure, so the structure is stable and the noise is low; moreover, the processing is convenient, and the space and the processing cost are reduced.
As shown in fig. 3, a plurality of first sonic nozzles 14 are respectively and correspondingly disposed in the plurality of first container connecting pipe segments 13.
As shown in fig. 1 to 2, the plurality of nozzle cylinders 15 are respectively disposed on the first back pressure container 12, and the plurality of nozzle cylinders 15 are in one-to-one correspondence with the plurality of first sonic nozzles 14 and respectively used for controlling the operating states of the corresponding first sonic nozzles 14; the first negative pressure assembly 16 is connected to the first back pressure vessel 12 by a pipe; the first air intake assembly 17 is connected to the first stagnation container 11 by a pipe.
As shown in fig. 1 to 2, the first negative pressure module 16 has a first centrifugal fan 161 and a first surge tank 162 connected by a pipe, and the first surge tank 162 is connected to the first back pressure container 12 and the first centrifugal fan 161 by a pipe. In this embodiment, the first centrifugal fan 161 is a high-power centrifugal fan.
As shown in fig. 1 to 2, the first intake module 17 includes: the gas flowmeter comprises a first front straight pipe section 171, a first rear straight pipe section 172 and a first air cylinder 173, wherein the first rear straight pipe section 172 is connected with the first stagnation container 11, the first air cylinder 173 can drive the first front straight pipe section 171 to reciprocate along the axial direction of the first front straight pipe section 171, and a large-flow gas flowmeter is fixed and sealed between the first front straight pipe section 171 and the first rear straight pipe section 172.
Further, as shown in fig. 1 to 2, the first air intake assembly 17 further includes: a first muffler 174 and a first sealing plug 175. A first muffler 174 is provided at the air inlet of the first front straight pipe section 171; a first seal plug 175 is provided at the inlet of the first rear straight tube section 172 for sealing the first rear straight tube section 172 when the large gas flow rate is not secured and sealed.
Further, as shown in fig. 1 to 2, the first air intake assembly 17 further includes: the first lift truck 176, the first cylinder 173 and the mass flow gas meter are disposed on the first lift truck 176.
Specifically, as shown in fig. 1, 4 to 5, the second calibration module includes: a second stagnation container 21, a second back pressure container 22, a plurality of second container connecting pipe sections 23, a plurality of second sonic nozzles (not shown in the figure), a plurality of pneumatic angle valves 25, a second centrifugal fan 26 and a second air inlet assembly 27. In the present embodiment, the second centrifugal fan 26 is a low-power centrifugal fan.
Further, as shown in fig. 1, 4-5, the second stagnation container 21 is a cylinder, and the second stagnation container 21 is arranged horizontally; the second backpressure container 22 is a cylinder, and the second backpressure container 22 is arranged on one side of the second stagnation container 21 in parallel; a plurality of second container connecting pipe sections 23 are respectively connected with the second stagnation container 21 and the second back pressure container 22, and the plurality of second container connecting pipe sections 23 are mutually parallel and enclose into a circle; the cylindrical shape greatly saves the use space, and the gravity center of the device is positioned at the gravity center of the geometric structure, so the structure is stable and the noise is low; moreover, the processing is convenient, and the space and the processing cost are reduced.
As shown in fig. 1, 4-5, a plurality of second sonic nozzles (not shown) are respectively and correspondingly arranged in a plurality of second container connecting pipe sections 23; the plurality of pneumatic angle valves 25 are correspondingly arranged on the plurality of second container connecting pipe sections 23 one by one, and the plurality of pneumatic angle valves 25 are respectively used for controlling the working states of the plurality of second sonic nozzles; the second centrifugal fan 26 is connected to the second back pressure vessel 22 by a pipe; the second air intake assembly 27 is connected to the second stagnation container 21 by a pipe.
Further, as shown in fig. 1, 4 to 5, the second intake assembly 27 includes: the gas flowmeter comprises a second front straight pipe section 271, a second rear straight pipe section 272 and a second cylinder 273, wherein the second rear straight pipe section 272 is connected with the second stagnation container 21, the second cylinder 273 can drive the second front straight pipe section 271 to reciprocate along the axial direction of the second front straight pipe section 271, and the small-flow gas flowmeter 4 is fixed and sealed between the second front straight pipe section 271 and the second rear straight pipe section 272.
Further, as shown in fig. 1, 4 to 5, the second air intake assembly 27 further includes: a second muffler 274 and a second sealing plug (not shown). Wherein the second muffler 274 is provided at the air inlet of the second front straight pipe section 271; the second sealing plug is disposed at an air inlet of the second rear straight tube section 272 for sealing the second rear straight tube section 272 when the small flow gas flowmeter 4 is not fixed and sealed.
Further, as shown in fig. 1, 4 to 5, the second air intake assembly 27 further includes: a second cylinder 273 and a small flow gas flowmeter 4 are arranged on the second lifting trolley 276.
Specifically, as shown in fig. 1 and 4 to 5, the electric valve 3 is disposed between the first calibration module and the second calibration module, and is used for switching the first calibration module and the second calibration module.
In this embodiment, 8 first sonic nozzles 14 and 12 second sonic nozzles are respectively disposed in the first calibration module and the second calibration module, and the specifications of the first sonic nozzles 14 and the second sonic nozzles are different, so that the large-flow gas flowmeter and the small-flow gas flowmeter can be calibrated respectively through different arrangements and combinations, and the calibratable flow types are various.
When a large-flow gas flowmeter is calibrated, the electric valve 3 is opened, the first cylinder 173 is started, the first front straight pipe section 171 moves outwards, the first sealing plug 175 on the first lifting trolley 176 is taken down, the large-flow gas flowmeter to be calibrated is installed and fixed, the first centrifugal fan 161 is opened, the device is slowly in a negative pressure state, the first sonic nozzles 14 with proper number are selected for arrangement and combination according to the flow size requirement, the working state of the first sonic nozzles 14 is controlled through the nozzle cylinders 15, the pressure is stable after the device is operated for one end time, and the flow and other parameters of the large-flow gas flowmeter to be calibrated can be measured and calculated.
When the small-flow gas flowmeter 4 is calibrated, the electric valve 3 is closed, the small-flow gas flowmeter 4 is installed and fixed after the second cylinder 273 is started, the second centrifugal fan 26 is opened to enable the device to be in a negative pressure state slowly, a proper number of second sonic nozzles are selected to be arranged and combined according to the flow requirement, the working state of the second sonic nozzles is controlled through the pneumatic angle valve 25, the pressure is stable after the device is operated for a period of time, and the flow and other parameters of the small-flow gas flowmeter 4 to be calibrated can be measured and calculated.
The large-flow and small-flow gas flowmeters are calibrated respectively by switching the switch of the electric valve 3 and using almost the same operation, so that the large-flow and small-flow gas flowmeters can be calibrated simultaneously by the same device, the types of the calibratable flows are various, the operation is simple, and the product applicability is strong.
In the above, with reference to fig. 1 to 5, the cylindrical gas calibration device according to the embodiment of the present invention is described, the use space is greatly saved by adopting the cylindrical shape, and the center of gravity of the device is located at the center of gravity of the geometric structure, the structure is stable, and the noise is small; moreover, the processing is convenient, and the space and the processing cost are reduced; meanwhile, the large-flow and small-flow gas flow meters can be calibrated simultaneously through the two calibration modules, the types of the calibratable flows are various, the operation is simple, and the product applicability is strong.
It should be noted that, in the present specification, 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. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
While the present invention has been described in detail with reference to the preferred embodiments thereof, it should be understood that the above description should not be taken as limiting the present invention. Numerous modifications and alterations to the present invention will become apparent to those skilled in the art upon reading the foregoing description. Accordingly, the scope of the invention should be limited only by the attached claims.
Claims (10)
1. A cylindrical gas calibration device for calibrating a gas flow meter, comprising:
the first calibration module is used for calibrating the large-flow gas flowmeter;
the second calibration module is used for calibrating the small-flow gas flowmeter;
the electric valve is arranged between the first calibration module and the second calibration module and used for switching the first calibration module and the second calibration module.
2. The cylindrical gas calibration apparatus according to claim 1, wherein the first calibration module comprises:
a first stagnation vessel, the first stagnation vessel being a cylinder;
a first back pressure vessel disposed above the first stagnation vessel, the first back pressure vessel being cylindrical;
the first container connecting pipe sections are respectively connected with the first stagnation container and the first backpressure container, and are parallel to each other and form a circle;
the first sonic nozzles are respectively and correspondingly arranged in the first container connecting pipe sections;
the nozzle cylinders are respectively arranged on the first backpressure container, correspond to the first sonic nozzles one by one and are respectively used for controlling the working states of the corresponding first sonic nozzles;
a first negative pressure component connected with the first back pressure container through a pipeline;
a first air intake assembly connected to the first stagnation vessel by a conduit.
3. The cylindrical gas calibration device as recited in claim 2, wherein said first negative pressure assembly comprises a first centrifugal fan and a first surge tank connected by a pipeline, said first surge tank is connected by a pipeline to said first back pressure vessel and said first centrifugal fan, respectively.
4. The cylindrical gas calibration apparatus of claim 2, wherein the first gas inlet assembly comprises: the gas flowmeter comprises a first front straight pipe section, a first rear straight pipe section and a first cylinder, wherein the first rear straight pipe section is connected with the first stagnation container, the first cylinder can drive the first front straight pipe section to reciprocate along the axial direction of the first front straight pipe section, and the space between the first front straight pipe section and the first rear straight pipe section is used for fixing and sealing the high-flow gas flowmeter.
5. The cylindrical gas calibration assembly of claim 4, wherein said first gas inlet assembly further comprises:
a first muffler disposed at an air inlet of the first front straight tube section;
the first sealing plug is arranged at an air inlet of the first rear straight pipe section and used for sealing the first rear straight pipe section when the large-flow gas flowmeter is not fixed and sealed.
6. The cylindrical gas calibration assembly of claim 4, wherein said first gas inlet assembly further comprises: the first cylinder and the large-flow gas flowmeter are placed on the first lifting trolley.
7. The cylindrical gas calibration apparatus as set forth in claim 1, wherein said second calibration module comprises:
the second stagnation container is a cylinder and is arranged horizontally;
the second backpressure container is a cylinder and is arranged on one side of the second stagnation container in parallel;
the second container connecting pipe sections are respectively connected with the second stagnation container and the second backpressure container, and are parallel to each other and form a circle;
the second sonic nozzles are respectively and correspondingly arranged in the second container connecting pipe sections;
the plurality of pneumatic angle valves are arranged on the plurality of second container connecting pipe sections in a one-to-one correspondence mode and are respectively used for controlling the working states of the plurality of second sonic nozzles;
a second centrifugal fan connected to the second backpressure vessel by a conduit;
a second air intake assembly connected to the second stagnation vessel by a conduit.
8. The cylindrical gas calibration assembly as recited in claim 7, wherein said second gas inlet assembly comprises: the low-flow gas flowmeter comprises a second front straight pipe section, a second rear straight pipe section and a second cylinder, wherein the second rear straight pipe section is connected with the second stagnation container, the second cylinder can drive the second front straight pipe section to reciprocate along the axial direction of the second front straight pipe section, and the small-flow gas flowmeter is fixed and sealed between the second front straight pipe section and the second rear straight pipe section.
9. The cylindrical gas calibration assembly of claim 8, wherein said second gas inlet assembly further comprises:
a second muffler disposed at an air inlet of the second front straight tube section;
and the second sealing plug is arranged at the air inlet of the second rear straight pipe section and is used for sealing the second rear straight pipe section when the small-flow gas flowmeter is not fixed and sealed.
10. The cylindrical gas calibration assembly of claim 8, wherein said second gas inlet assembly further comprises: and the second cylinder and the small-flow gas flowmeter are arranged on the second lifting trolley.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120059704.1U CN214309049U (en) | 2021-01-11 | 2021-01-11 | Cylindrical gas calibration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120059704.1U CN214309049U (en) | 2021-01-11 | 2021-01-11 | Cylindrical gas calibration device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214309049U true CN214309049U (en) | 2021-09-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120059704.1U Active CN214309049U (en) | 2021-01-11 | 2021-01-11 | Cylindrical gas calibration device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214309049U (en) |
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2021
- 2021-01-11 CN CN202120059704.1U patent/CN214309049U/en active Active
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Effective date of registration: 20230717 Address after: 201,611 Room 201, Floor 2, Building 1, No. 499, Beimin Road, Chedun Town, Songjiang District, Shanghai Patentee after: CANGYI TECHNOLOGY (SHANGHAI) Co.,Ltd. Address before: No. 515, 5th floor, complex building, 366 Jiayi Road, Cangnan Industrial Park, Wenzhou City, Zhejiang Province, 325800 Patentee before: Zhejiang Cangyi Technology Co.,Ltd. |