CN211042335U - Jacket heating and temperature and pressure compensation type integrated wedge-shaped flowmeter - Google Patents
Jacket heating and temperature and pressure compensation type integrated wedge-shaped flowmeter Download PDFInfo
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- CN211042335U CN211042335U CN201921949780.9U CN201921949780U CN211042335U CN 211042335 U CN211042335 U CN 211042335U CN 201921949780 U CN201921949780 U CN 201921949780U CN 211042335 U CN211042335 U CN 211042335U
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Abstract
The utility model belongs to the wedge flowmeter field especially relates to a press from both sides cover heating and warm-pressing offset type integral type wedge flowmeter, and its structure includes: the device comprises a measuring pipe, a jacket, a heat medium inlet, a heat medium outlet, a wedge-shaped throttling element, a differential pressure type instrument, a pressure instrument, a temperature detector and a connecting flange; wherein, the outside of the measuring pipe is provided with a jacket, and both ends of the jacket are respectively provided with a heating medium inlet and a heating medium outlet; the wedge-shaped throttling element is welded at the center of the inner wall of the measuring tube, and the pressure instrument, the differential pressure instrument and the temperature detecting instrument are sequentially arranged on the side wall of the measuring tube; and connecting flanges are fixed at both ends of the measuring pipe. The flowmeter realizes the integration of the installation of the flow, temperature and pressure compensation elements, the real-time and accurate detection signals, eliminates the influence of the working condition change of the medium on the measurement, realizes the integration of the measurement and is convenient to install and measure.
Description
Technical Field
The utility model belongs to the wedge flowmeter field especially relates to a press from both sides cover heating and warm-pressing offset type integral type wedge flowmeter.
Background
When the wedge-shaped flowmeter is used for measuring liquid or gas media which are easy to solidify and have low temperature fluidity, the wedge-shaped flowmeter is easy to condense and block at a flowing pipeline and a sampling connector, the temperature and pressure of the medium change greatly, the density of the fluid deviates from a design value, the flow measurement of the fluid is inaccurate, the temperature and the pressure need to be compensated, a pressure measuring instrument and a temperature measuring instrument need to be independently installed on a pipeline on site in the past, the wedge-shaped flowmeter is inconvenient to install and manufacture, and the wedge-shaped flowmeter is not beneficial to effectively.
SUMMERY OF THE UTILITY MODEL
To foretell problem, the utility model aims at providing a press from both sides cover and heat and press compensation type integral type wedge flowmeter, this kind of flowmeter has realized that collection flow, temperature, pressure compensation component installation integration, and detected signal is real-time accurate, eliminates medium operating mode change to measuring influence, and the measurement realizes that the integration integrates, the installation and the measurement of being convenient for.
In order to achieve the above object, the technical solution of the present invention is specifically as follows:
a jacket heating and temperature and pressure compensation type integrated wedge-shaped flowmeter comprises: the device comprises a measuring pipe, a jacket, a heat medium inlet, a heat medium outlet, a wedge-shaped throttling element, a differential pressure type instrument, a pressure instrument, a temperature detector and a connecting flange; wherein, the outside of the measuring pipe is provided with a jacket, and both ends of the jacket are respectively provided with a heating medium inlet and a heating medium outlet; the wedge-shaped throttling element is welded at the center of the inner wall of the measuring tube, and the pressure instrument, the differential pressure instrument and the temperature detecting instrument are sequentially arranged on the side wall of the measuring tube; and connecting flanges are fixed at both ends of the measuring pipe.
Compared with the prior art, the utility model discloses following beneficial effect has been obtained: the integrated flowmeter designed by the utility model realizes the integrated installation of the thermometer, the pressure gauge, the differential pressure gauge compensating element and the wedge-shaped throttling element, can eliminate the influence caused by the temperature and pressure change by supplementing the heat source into the jacket, has strong stability of the measured flow, is accurate and reliable, effectively monitors the real-time working condition and provides technical support; meanwhile, the device has the heating and heat-preserving functions, is suitable for measuring the flow rate in a low-temperature environment, can heat the temperature of the measured fluid, and ensures the circulation capacity and accurate detection of the medium.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, the exemplary embodiments and descriptions of the invention are used for explaining the invention without unduly limiting the invention.
Fig. 1 is a schematic structural diagram of an embodiment of the present invention, in which a jacket heating and temperature and pressure compensation type integrated wedge-shaped flowmeter is provided.
Fig. 2 is a schematic view of an installation structure of a pressure instrument according to an embodiment of the present invention.
Fig. 3 is a schematic view of an installation structure of the temperature detecting instrument in the embodiment of the present invention.
The reference numerals in the drawings denote: 1-measuring tube, 2-jacket, 3-heat medium inlet, 4-heat medium outlet, 5-wedge-shaped throttling element, 6-differential pressure instrument, 7-pressure instrument, 8-temperature detecting instrument, 9-connecting flange, 10-flange short tube, 11-pressure sampling tube, 12-junction box and 13-temperature measuring tube.
Detailed Description
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the invention. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
As mentioned above, when the existing wedge-shaped flowmeter is used for measuring liquid or gas medium which is easy to solidify and has low temperature fluidity, a pressure and temperature measuring instrument needs to be independently installed on a field pipeline, and the existing wedge-shaped flowmeter is inconvenient to install and manufacture and is not beneficial to effectively monitoring real-time working conditions. Therefore, the utility model provides a press from both sides cover and heat and press compensation type integral type wedge flowmeter, it is right to now combine the figure and detailed implementation mode the utility model discloses further explain.
Referring to fig. 1, the example of the utility model relates to a jacket heats and warm-pressing offset type integral type wedge flowmeter, include: the device comprises a measuring pipe 1, a jacket 2, a heating medium inlet 3, a heating medium outlet 4, a wedge-shaped throttling element 5, a differential pressure type instrument 6, a pressure instrument 7, a temperature detecting instrument 8 and a connecting flange 9; wherein:
the outside of the measuring pipe 1 is provided with a jacket 2, and two ends of the jacket 2 are respectively provided with a heat medium inlet 3 and a heat medium outlet 4, so that heat medium (such as hot steam/hot water) can be introduced into the jacket to perform temperature compensation on the medium to be measured.
The wedge-shaped throttling element 5 is welded at the center of the inner wall of the measuring pipe, and the height of the wedge block exceeds the outer wall of the measuring pipe by 6 mm.
The pressure instrument 7, the differential pressure instrument 6 and the temperature detecting instrument 8 are sequentially arranged on the side wall of the measuring pipe 1; the measuring tube 1 is fixed with connecting flanges 9 at both ends.
Further, a mating measurement pipe model is selected based on the measurement flange model, for example, in some implementations the measurement pipe length is 800mm, and in other implementations the measurement pipe length is 1500 mm.
In addition, in some implementations, the wedge ratio and the wedge height of the wedge-shaped flowmeter are calculated according to the fluid parameters, the opening height of the measuring pipe is calculated according to the wedge height, an inverted V-shaped notch is cut in the measuring pipe at the middle position, the notch is positioned right above a flowing medium in the measuring pipe, the height of the wedge block is higher than that of the measuring pipe, the wedge-shaped throttling piece is completely matched with the inverted V-shaped notch of the pipeline, and the wedge-shaped throttling piece is tightly welded with the measuring pipe.
Further, in some implementations, referring to fig. 1, the pressure meter 7 single-flange pressure transmitter is provided with a hole with an inner diameter of 40mm at a position three times the diameter of the measuring pipe upstream of the wedge-shaped throttling element 5, a flange short pipe 10 with a diameter of phi 45 is welded on the hole, the single-flange pressure transmitter is inserted into the flange short pipe 10, and the single-flange pressure transmitter is fixedly connected with a flange bolt on the flange short pipe 10 through a flange of the single-flange pressure transmitter.
Further, in some implementations, referring to fig. 2, the differential pressure type instrument 6 is a double-flange differential pressure transmitter, the left and right sides of the wedge-shaped throttling element are respectively provided with a mounting hole at equal intervals, the pressure tapping pipe 11 with the length of 140mm and the inner diameter of 40mm is welded on the mounting hole, the two pressure tapping pipes 11 are respectively inserted with one differential pressure type instrument 6, one port of the pressure tapping pipe 11, which is far away from the measuring pipe, is provided with a flange, and the differential pressure type instrument 6 is fixedly connected with the flange bolt on the port of the pressure tapping pipe 11 through the flange of the differential pressure type instrument 6.
In other implementations, the length of the pressure tapping pipe 11 is 200mm, the inner diameter is 45mm, and a flange arranged on a port of the pressure tapping pipe meets the installation design requirement of DN50 pressure grade.
Further, in some implementations, referring to fig. 3, the temperature detecting instrument 8 is a thermal resistor, and the temperature detecting instrument is located at one end outside the measuring pipe and is provided with a junction box 12, a hole with an inner diameter of 21mm is formed at a position away from the downstream of the wedge-shaped throttling element 5 by three times the diameter of the measuring pipe, a temperature measuring pipe 13 for installing the welding temperature detecting instrument is welded on the hole, a flange is arranged at one port of the temperature measuring pipe, which is far away from the measuring pipe 1, and the temperature detecting instrument is connected with the flange on the temperature measuring pipe 13 through a bolt. The insertion position of the temperature measuring instrument 8 is located directly above the medium flowing through the measuring tube, and the depth of the temperature measuring instrument 8 inserted into the measuring tube 1 is 1/2 of the inner diameter of the measuring tube.
In other implementations, the temperature sensing device 8 is inserted into the measurement tube 1 to a depth 1/3 of the inner diameter of the measurement tube.
Further, in some implementations, a hole having a diameter of 18mm opened at 50mm from the right end of the jacket 2 is the heating medium inlet 3; a hole with the diameter of 18mm is arranged at the position 50mm away from the left end of the jacket 2 to form a heat medium outlet 4, the heat medium inlet 3 is arranged at the bottom of the jacket 2, and the heat medium outlet 4 is arranged at the top of the jacket 2. When measuring the liquid/gas medium which is easy to solidify and has low temperature fluidity, the measuring pipe is heated to meet the process requirement and the measurement requirement after the heating medium (such as water vapor or hot water) is introduced into the jacket, and the good fluidity of the pipeline medium and the accurate detection of the flow signal are proved.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides a jacket heats and warm-pressing offset type integral type wedge flowmeter which characterized in that includes: the device comprises a measuring pipe, a jacket, a heat medium inlet, a heat medium outlet, a wedge-shaped throttling element, a differential pressure type instrument, a pressure instrument, a temperature detector and a connecting flange; wherein, the outside of the measuring pipe is provided with a jacket, and both ends of the jacket are respectively provided with a heating medium inlet and a heating medium outlet; the wedge-shaped throttling element is welded at the center of the inner wall of the measuring tube, and the pressure instrument, the differential pressure instrument and the temperature detecting instrument are sequentially arranged on the side wall of the measuring tube; and connecting flanges are fixed at both ends of the measuring pipe.
2. The jacket-heating and temperature-pressure-compensating integrated wedge flowmeter of claim 1, wherein the measuring tube is cut at a middle position with an inverted V-shaped notch, the notch is located right above a medium flowing in the measuring tube, the wedge is higher than the measuring tube, the wedge-shaped orifice completely fits the inverted V-shaped notch of the pipe, and the wedge-shaped orifice is tightly welded to the measuring tube.
3. The jacket heating and temperature and pressure compensation type integrated wedge-shaped flowmeter according to claim 1, wherein the pressure meter is a single-flange pressure transmitter, a hole for welding a flange short pipe is formed at a position three times the diameter of the measuring pipe upstream of the wedge-shaped throttling element, the single-flange pressure transmitter is inserted into the flange short pipe, and the single-flange pressure transmitter is fixedly connected with the flange short pipe through a flange bolt on the single-flange pressure transmitter and the flange short pipe.
4. The jacket heating and temperature and pressure compensation type integrated wedge-shaped flowmeter according to claim 1, wherein the differential pressure type instrument is a double-flange differential pressure transmitter, the left side and the right side of the wedge-shaped throttling element are respectively provided with a mounting hole at equal intervals, the mounting holes are welded with pressure-taking pipes, one differential pressure type instrument is inserted into each of the two pressure-taking pipes, one port of each pressure-taking pipe, which is far away from the measuring pipe, is provided with a flange, and the differential pressure type instrument is fixedly connected with the flange bolt on the port of the pressure-taking pipe through the flange.
5. The jacket heating and temperature and pressure compensation type integrated wedge-shaped flowmeter as claimed in claim 4, wherein the length of the pressure taking pipe is 140-200mm, the inner diameter is 40-45mm, and a flange arranged on a port of the pressure taking pipe meets the installation design requirement of DN50 pressure grade.
6. The jacket heating and temperature and pressure compensation type integrated wedge flowmeter of claim 1, wherein the temperature detecting instrument is a thermal resistor, and a terminal box is installed at an end of the temperature detecting instrument located outside the measuring tube, a hole is formed at a position three times the diameter of the measuring tube downstream of the wedge throttling element, a temperature measuring tube for installing and welding the temperature detecting instrument is welded to the hole, a flange is provided at an end port of the temperature measuring tube remote from the measuring tube, and the temperature detecting instrument is connected to the flange on the temperature measuring tube by a bolt through the flange of the temperature detecting instrument; the insertion position of the temperature detection instrument is positioned right above the flowing medium in the measuring pipe.
7. The jacket-heated and temperature-pressure-compensated integrated wedge flowmeter of claim 6, wherein the temperature detecting instrument is inserted into the measuring tube to a depth of 1/2 to 1/3 of an inner diameter of the measuring tube.
8. The jacket heating and temperature and pressure compensation type integrated wedge flowmeter as set forth in claim 1, wherein a hole having a diameter of 18mm is opened at a position 50mm from the right end of the jacket as a heating medium inlet; a hole with the diameter of 18mm is arranged at the position 50mm away from the left end of the jacket and is used as a heat medium outlet, the heat medium inlet is arranged at the bottom of the jacket, and the heat medium outlet is arranged at the top of the jacket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921949780.9U CN211042335U (en) | 2019-11-12 | 2019-11-12 | Jacket heating and temperature and pressure compensation type integrated wedge-shaped flowmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921949780.9U CN211042335U (en) | 2019-11-12 | 2019-11-12 | Jacket heating and temperature and pressure compensation type integrated wedge-shaped flowmeter |
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| Publication Number | Publication Date |
|---|---|
| CN211042335U true CN211042335U (en) | 2020-07-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921949780.9U Active CN211042335U (en) | 2019-11-12 | 2019-11-12 | Jacket heating and temperature and pressure compensation type integrated wedge-shaped flowmeter |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113390469A (en) * | 2021-08-16 | 2021-09-14 | 南通麦西计量科技有限公司 | From warm instrument for pressure monitoring of reporting to police |
-
2019
- 2019-11-12 CN CN201921949780.9U patent/CN211042335U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113390469A (en) * | 2021-08-16 | 2021-09-14 | 南通麦西计量科技有限公司 | From warm instrument for pressure monitoring of reporting to police |
| CN113390469B (en) * | 2021-08-16 | 2021-11-05 | 南通麦西计量科技有限公司 | From warm instrument for pressure monitoring of reporting to police |
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