CN214583450U - Steam flow metering device - Google Patents
Steam flow metering device Download PDFInfo
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- CN214583450U CN214583450U CN202120360380.5U CN202120360380U CN214583450U CN 214583450 U CN214583450 U CN 214583450U CN 202120360380 U CN202120360380 U CN 202120360380U CN 214583450 U CN214583450 U CN 214583450U
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Abstract
A steam flow metering device comprises a preheating tank, a metering pipeline, a third steam trap and a third vortex shedding flowmeter which are sequentially connected through pipelines; the outer wall of the preheating box is provided with a heating device for heating steam in the preheating box; the metering pipeline comprises a first steam branch and a second steam branch which are arranged in parallel, a first flow regulating valve, a first steam trap, a first temperature sensor, a first pressure sensor and a first vortex shedding flowmeter are sequentially arranged on the first steam branch along the steam flow direction, and a flow regulating valve, a second steam trap, a second temperature sensor, a second pressure sensor and a second vortex shedding flowmeter are sequentially arranged on the second steam branch along the steam flow direction. The utility model discloses simple structure measures accurately, and measuring speed is fast, and measurement efficiency is high.
Description
Technical Field
The utility model relates to a steam flow measurement technical field, in particular to steam flow metering device.
Background
The steam flowmeter is a special instrument for measuring the accumulated mass flow of the steam, and has two structural forms of a mechanical type and an intelligent type; the quality of all steam flowing through the indicator dial or the liquid crystal display screen is accurately read through field display of the indicator dial or the liquid crystal display screen, a pulse signal can be output, and the automatic steam generator has a manual pressure compensation function or an automatic temperature compensation function. The flowmeter has simple structure, moderate price and wide measuring range, and is widely applied to occasions requiring steam flowmeters, such as petroleum, chemical industry, textile, heat supply and the like.
At present, the flowmeter in the prior art only carries out once measurement, and the deviation often appears in the measuring result, and steam has the phenomenon of comdenstion water in can appearing when circulating moreover, often can cause the steam flowmeter to be out of alignment like this to the influence is to the accurate measurement of steam flow.
SUMMERY OF THE UTILITY MODEL
To the problem that exists among the prior art, the utility model provides a steam flow metering device, simple structure measures the accuracy, and measuring speed is fast, and measurement of efficiency is high.
The utility model discloses a solve the technical scheme that above-mentioned technical problem adopted and be: a steam flow metering device comprises a preheating tank, a metering pipeline, a third steam trap and a third vortex shedding flowmeter which are sequentially connected through pipelines;
the outer wall of the preheating box is provided with a heating device for heating steam in the preheating box;
the metering pipeline comprises a first steam branch and a second steam branch which are arranged in parallel, a first flow regulating valve, a first steam trap, a first temperature sensor, a first pressure sensor and a first vortex shedding flowmeter are sequentially arranged on the first steam branch along the steam flow direction, and a flow regulating valve, a second steam trap, a second temperature sensor, a second pressure sensor and a second vortex shedding flowmeter are sequentially arranged on the second steam branch along the steam flow direction.
Further, the heating device comprises a circulating water path wound on the outer wall of the preheating box, a circulating water pump and a circulating water tank are arranged on the circulating water path, and a third temperature sensor and a heater are arranged in the circulating water tank.
Furthermore, the first steam trap, the second steam trap and the third steam trap are provided with water outlet pipes, and the water outlet pipes are communicated with the circulating water tank through pipelines.
Furthermore, a first check valve is arranged between the first steam trap and the first temperature sensor on the first steam branch.
Furthermore, a second one-way valve is arranged between the second steam trap and the second temperature sensor on the second steam branch.
Further, a third one-way valve is arranged between the third steam trap and the third vortex shedding flowmeter.
Furthermore, each pipeline outer wall is provided with a heat insulation sleeve.
Further, the first flow regulating valve and the second flow regulating valve are both electric control flow regulating valves.
According to the technical scheme, the beneficial effects of the utility model are that:
1. the utility model discloses a first vortex flowmeter on the first steam branch road and the second vortex flowmeter measured value sum on the second steam branch road carry out the comparison with third vortex flowmeter measured value, compare in once measuring, and measurement accuracy is higher, and the error is littleer.
2. The utility model discloses a preheating cabinet preheats measured steam, reduces the comdenstion water that steam had to first steam trap, second steam trap and third steam trap make the comdenstion water in steam area get rid of rapidly at first vortex street flowmeter, second vortex street flowmeter and third vortex street flowmeter upper reaches respectively, and water makes the steam measurement more accurate, improves the measuring degree of accuracy.
3. The utility model discloses an adjust first flow control valve and second flow control valve and adjust the steam flow on first steam branch road and the second steam branch road to can compare first vortex street flowmeter and second vortex street flowmeter measured value sum and third vortex street flowmeter's measured value many times, thereby reach accurate steam flow, improve measuring precision.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
The labels in the figure are: 1. the steam trap comprises a preheating tank, 2, a first flow regulating valve, 3, a first steam trap, 4, a first check valve, 5, a first temperature sensor, 6, a first pressure sensor, 7, a first vortex street flowmeter, 8, a first steam branch, 9, a third steam trap, 10, a third check valve, 11, a third vortex street flowmeter, 12, a second steam branch, 13, a second vortex street flowmeter, 14, a second pressure sensor, 15, a second temperature sensor, 16, a second check valve, 17, a second steam trap, 18, a second flow regulating valve, 19, a circulating water tank, 20, a circulating water pump, 21 and a circulating water path.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1, the present invention provides a steam flow meter, which comprises a preheating tank 1, a metering pipeline, a third steam trap 9 and a third vortex shedding flowmeter 11 connected in sequence via pipelines.
The preheating tank 1 is provided with a heating device for heating steam in the preheating tank 1 on the outer wall, the heating device comprises a circulating water path 21 wound on the outer wall of the preheating tank 1, the circulating water path 21 is provided with a circulating water pump 20 and a circulating water tank 19, the circulating water tank 19 is internally provided with a third temperature sensor and a heater, circulating water is contained in the circulating water tank 19, the heater heats the circulating water in the circulating water tank 19 to a proper temperature according to the temperature of the steam in the pipeline, the third temperature sensor is used for detecting the temperature of the water in the circulating water tank to avoid the preheating tank 2 from being damaged due to overhigh heating temperature, the first steam trap 3, the second steam trap 17 and the third steam trap 9 are respectively provided with a water outlet pipe, the water outlet pipes are communicated with the circulating water tank 19 through pipelines, and condensed water of the first steam trap 3, the second steam trap 17 and the third steam trap 9 enters the circulating water tank through the pipelines, avoid causing the waste of resource, because of the steam condensate water has the uniform temperature, also accelerated the rising of circulating water tank 19 internal water temperature after getting into circulating water tank 19 to circulating water tank 19 still is equipped with water inlet and delivery port, and unnecessary water can in time be discharged to the delivery port, avoids circulating water tank 19's water too much, all be equipped with the lagging on each pipeline outer wall, the lagging has played heat retaining effect, has reduced the production of condensate water in the pipeline, thereby has improved measurement accuracy.
The metering pipeline comprises a first steam branch 8 and a second steam branch 12 which are arranged in parallel, a first flow regulating valve 2, a first steam trap 3, a first temperature sensor 5, a first pressure sensor 6 and a first vortex shedding flowmeter 7 are sequentially arranged on the first steam branch 8 along the steam flow direction, and a second flow regulating valve 18, a second steam trap 17, a second temperature sensor 15, a second pressure sensor 14 and a second vortex shedding flowmeter 13 are sequentially arranged on the second steam branch 12 along the steam flow direction.
A first check valve 4 is arranged between the first steam trap 3 and the first temperature sensor 5 on the first steam branch 8, a second check valve 16 is arranged between the second steam trap 17 and the second temperature sensor 15 on the second steam branch 12, and a third check valve 10 is arranged between the third steam trap 9 and the third vortex shedding flowmeter 11. The utility model discloses a preheating cabinet 2 preheats measured steam, reduces the comdenstion water that the steam had to first steam trap 3, second steam trap 17 and third steam trap 9 make the comdenstion water in steam area get rid of rapidly at first vortex street flowmeter 7, second vortex street flowmeter 13 and third vortex street flowmeter 11 upper reaches respectively, make steam measurement more accurate, improve the measuring degree of accuracy.
The first flow regulating valve 2 and the second flow regulating valve 18 are both electric control flow regulating valves, and the electric control flow regulating valves are convenient to regulate, so that the measuring efficiency is accelerated. The utility model discloses an adjust first flow control valve 2 and second flow control valve 18 and adjust the steam flow on first steam branch road 8 and the second steam branch road 12 to can compare first vortex street flowmeter 7 and second vortex street flow 13 measurement value sum and third vortex street flowmeter 11's measured value many times, finally reach accurate steam flow, improve measuring precision.
It should be noted that the above embodiments are only used for illustrating the present invention, but the present invention is not limited to the above embodiments, and any simple modification, equivalent change and modification made to the above embodiments by the technical spirit of the present invention all fall into the protection scope of the present invention.
Claims (7)
1. A steam flow metering device is characterized in that: comprises a preheating box (1), a metering pipeline, a third steam trap (9) and a third vortex shedding flowmeter (11) which are connected in sequence through pipelines;
the outer wall of the preheating box (1) is provided with a heating device for heating steam in the preheating box (1);
the metering pipeline comprises a first steam branch (8) and a second steam branch (12) which are arranged in parallel, wherein the first steam branch (8) is sequentially provided with a first flow regulating valve (2), a first steam trap (3), a first temperature sensor (5), a first pressure sensor (6) and a first vortex flowmeter (7) along the steam flow direction, and the second steam branch (12) is sequentially provided with a second flow regulating valve (18), a second steam trap (17), a second temperature sensor (15), a second pressure sensor (14) and a second vortex flowmeter (13) along the steam flow direction.
2. The steam flow gauging device of claim 1, wherein: the heating device comprises a circulating water path (21) wound on the outer wall of the preheating box (1), a circulating water pump (20) and a circulating water tank (19) are arranged on the circulating water path (21), and a third temperature sensor and a heater are arranged in the circulating water tank (19).
3. The steam flow gauging device of claim 2, wherein: the first steam trap (3), the second steam trap (17) and the third steam trap (9) are all provided with water outlet pipes, and the water outlet pipes are communicated with the circulating water tank (19) through pipelines.
4. The steam flow gauging device of claim 1, wherein: and a first one-way valve (4) is arranged between the first steam trap (3) and the first temperature sensor (5) on the first steam branch (8).
5. The steam flow gauging device of claim 1, wherein: and a second one-way valve (16) is arranged between a second steam trap (17) and a second temperature sensor (15) on the second steam branch (12).
6. The steam flow gauging device of claim 1, wherein: and a third one-way valve (10) is arranged between the third steam trap (9) and the third vortex shedding flowmeter (11).
7. The steam flow gauging device of claim 1, wherein: the first flow regulating valve (2) and the second flow regulating valve (18) are both electric control flow regulating valves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120360380.5U CN214583450U (en) | 2021-02-09 | 2021-02-09 | Steam flow metering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120360380.5U CN214583450U (en) | 2021-02-09 | 2021-02-09 | Steam flow metering device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214583450U true CN214583450U (en) | 2021-11-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120360380.5U Active CN214583450U (en) | 2021-02-09 | 2021-02-09 | Steam flow metering device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214583450U (en) |
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2021
- 2021-02-09 CN CN202120360380.5U patent/CN214583450U/en active Active
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