CN104897229A - Portable online purging device for differential pressure flowmeter - Google Patents
Portable online purging device for differential pressure flowmeter Download PDFInfo
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- CN104897229A CN104897229A CN201510364248.0A CN201510364248A CN104897229A CN 104897229 A CN104897229 A CN 104897229A CN 201510364248 A CN201510364248 A CN 201510364248A CN 104897229 A CN104897229 A CN 104897229A
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Abstract
The invention discloses a portable online purging device for a differential pressure flowmeter. The device comprises a compressed gas source cylinder, a pressure reduction valve, a first pressure gauge, a first flow rate control valve and a second pressure gauge; a connecting part is arranged at the outlet end of a pipeline. According to the device, high pressure gas in the compressed gas source cylinder is used for purging a blocked pressure pipeline so as to dredge the blocked pipeline. The device is simple in structure, can be operated by one people, is easy to process and manufacture, small in cost, and light in weight, and can be carried by one people; with the adoption of the device, production stopping is avoided, and thus the production continuity is improved; the labor intensity of workers can be reduced; the working efficiency is increased; the accuracy and stability of data metering of the differential pressure flowmeter are improved.
Description
Technical field
The present invention relates to metering outfit technical field, especially relate to a kind of portable online blow device for differential pressure flowmeter.
Background technology
At present, energy measurement be industrial enterprise's production and operation, the key adjusted of energy-saving and cost-reducing, cost assess and trade.When energy measurement, usually utilize differential pressure flowmeter to measure the flow of measured medium.The five valve groups that differential pressure flowmeter generally includes restriction device, former and later two pressure pipelines, differential pressure transmitter and is arranged on two pressure pipelines.In industry reality, many media contain dirty impurity, as often contained the impurity such as coal tar, dust granules in coal gas, easily causing the blocking on flowmeter pressure pipe road, directly affecting the normal operation of flowmeter and the accuracy of continuous data.
Along with scientific-technical progress, enterprise energy metering achieves remote automatic acquisition mostly, on-the-spot energy measurement data can carry out real-time Transmission and statistical study by remote automatic acquisition system, the form of special messenger's computer remote spot check and on-the-spot spot check is adopted to combine, can the running status of monitoring field instrument in time, comprise and can judge the faults such as whether the pressure pipeline of flowmeter blocks.
In daily servicing, the common method solving pressure line clogging is artificial dredging, and maintainer uses the dredging pressure pipelines such as steel wire, drill rod, copper instrument usually, and labour intensity is large, inefficiency.Sometimes cannot dredge blockage position due to pressure pipe curved way, even need stopping production to dredge, and there is larger potential safety hazard during the toxic gas pressure pipeline of dredge blockage.
Another kind method is the pressure pipeline adopting gases at high pressure to purge blocking, but need to lay high-pressure gas pipelines at a distance, and the distribution of enterprise energy stoichiometric point is multi-point and wide-ranging, high-pressure blowing gas pipeline is laid to a large amount of and stoichiometric point of dispersion and implements that difficulty is large, cost is high, and high-pressure blowing gas pipeline and device itself thereof to increase certain maintenance.
Therefore, how quickly and easily, safely and the blocking of dredging differential pressure flowmeter is at low cost the technical matters that those skilled in the art need solution badly.
Summary of the invention
The object of the present invention is to provide a kind of portable online blow device for differential pressure flowmeter, this blow device structure is simple, security is high, and processing and fabricating cost is lower, the blocking in differential pressure flowmeter pressure pipeline can be dredged quickly and easily, need not stop production, reduce the labour intensity of worker, improve work efficiency, improve the Stability and veracity of differential pressure flowmeter continuous data.
For solving above-mentioned technical matters, technical scheme provided by the invention is:
For a portable online blow device for differential pressure flowmeter, comprise the compressed gas source bottle be communicated with successively by pipeline, reduction valve, the first tensimeter, first flow operation valve and the second tensimeter, the endpiece of described pipeline is provided with web member.
Preferably, the first retaining valve on the pipeline be arranged between described second tensimeter and described web member is also comprised.
Preferably, the pipeline between described reduction valve and described first retaining valve is stainless steel hard tube, and the pipeline between described first retaining valve and described web member is stainless steel pressure tight metal flexible pipe.
Preferably, pipeline between described first tensimeter and described first flow operation valve is connected with bypass line, described bypass line is disposed with second control valve, the 3rd tensimeter and the second retaining valve, the endpiece of described bypass line is provided with web member.
Preferably, described first tensimeter, the second tensimeter and the 3rd tensimeter are pointer pressure.
Preferably, described compressed gas source bottle is compressed nitrogen gas cylinder
Preferably, described compressed gas source bottle is 2, and one is compressed nitrogen gas cylinder, and another is compressed steam bottle, and described compressed nitrogen gas cylinder is communicated with described reduction valve by T-valve with described compressed steam bottle.
Preferably, described web member is rapid-acting coupling.
Preferably, described compressed gas source bottle is placed on removable wooden handcart.
Compared with prior art, the present invention includes the compressed gas source bottle be communicated with successively by pipeline, reduction valve, the first tensimeter, first flow operation valve and the second tensimeter, the endpiece of described pipeline is provided with web member.When finding the pressure line clogging of differential pressure flowmeter, the blowoff valve of the web member of pipe outlet with five valve groups being communicated with, utilizing the pressure pipeline of the gases at high pressure in compressed gas source bottle to blocking to purge, blocking is dredged.This blow device presents the pressure of pressure gas after reduction valve pressure regulation by the first tensimeter; Adjusted by the flow of first flow operation valve to purge gas; Whether dredged by the second tensimeter monitoring pressure pipeline.This blow device rationally assembles formation entirety to reduction valve, tensimeter, flowrate control valve, and structure is simple, and by one man operation, and can be easy to processing and fabricating, cost is lower; This blow device, from heavy and light, can be carried by single, is a kind of portable blow device; Use this blow device, need not stop production, improve the continuity of production; This blow device reduces the labour intensity of worker, improves work efficiency, improves the Stability and veracity of differential pressure flowmeter continuous data.
Further, compressed gas source bottle described in blow device provided by the invention is 2, and one is compressed nitrogen gas cylinder, and another is compressed steam bottle, and described compressed nitrogen gas cylinder is communicated with described reduction valve by T-valve with described compressed steam bottle.When the tamper in pressure pipeline is heat-sensitive substance and pressure pipeline bonds firm, can steam be first utilized to heat heat-sensitive substance, reduce the cohesive of tamper and pressure pipeline inner wall, then, purge with high pressure nitrogen again, solve the practical problems in production, improve dredging effect and efficiency, improve the Stability and veracity of differential pressure flowmeter continuous data.
Accompanying drawing explanation
The principle of work schematic diagram of the portable online blow device for differential pressure flowmeter that Fig. 1 provides for the embodiment of the present invention.
In figure: 1 compressed nitrogen gas cylinder, 2 compressed steam bottles, 3 reduction valve, 4 first tensimeters, 5 first flow operation valves, 6 second tensimeters, 7 first retaining valves, 8 second control valves, 9 the 3rd tensimeters, 10 second retaining valves, 11 T-valve, 12 blowoff valves, 13 equalizing valves, 14 high-pressure valves, 15 low pressure valves, 16 differential pressure transmitters, 17 pressure pipelines, 18 medium transport pipelines.
Embodiment
In order to make those skilled in the art understand the present invention program better, below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
With reference to the principle of work schematic diagram of the portable online blow device for differential pressure flowmeter that figure 1, Fig. 1 provides for the embodiment of the present invention.
The pressure pipeline 17 that differential pressure flowmeter comprises differential pressure transmitter 16 and medium transport pipeline 18 and differential pressure transmitter 16 coupled together.Pressure pipeline 17 is provided with usually five valve groups of an integral structure.Five valve groups are made up of high-pressure valve 14, low pressure valve 15, equalizing valve 13 and two blowoff valves 12.During work, two groups of blowoff valves 12 and equalizing valve 13 are closed; When safeguarding or verify, first high-pressure valve 14, low pressure valve 15 are cut off, then open equalizing valve 13 and two blowoff valves 12.Five valve groups can with the supporting installations of transmitter such as various differential pressure, flow, liquid level.
The invention provides a kind of portable online blow device for differential pressure flowmeter, comprise the compressed gas source bottle be communicated with successively by pipeline, reduction valve 3, first tensimeter 4, first flow operation valve 5 and the second tensimeter 6, the endpiece of described pipeline is provided with web member.
When finding that the pressure pipeline 17 of differential pressure flowmeter blocks, the web member of pipe outlet is communicated with a blowoff valve 12 of five valve groups, then switch and the reduction valve 3 of compressed gas source bottle is opened successively, by the aperture of the registration adjustment reduction valve 3 of the first tensimeter 4, after the first tensimeter 4 registration reaches desired value, open first flow operation valve 5, adjustment compression gas flow, finally open blowoff valve 12, the impulse force of pressure gas is utilized blocking to be dredged, when the moment of blocking dredging, pressure in pipeline can be undergone mutation, be presented on the second tensimeter 6, the degree blocking dredging is judged with this.When after blocking completely dredging, close blowoff valve 12, compressed gas source bottle switch, reduction valve 3, first flow operation valve 5 successively, then disconnect being communicated with of part and blowoff valve 12, continue to dredge next connecting line.
This blow device presents the pressure of pressure gas after reduction valve 3 pressure regulation by the first tensimeter 4; Adjusted by the flow of first flow operation valve 5 pairs of purge gas; Monitor pressure pipeline 17 by the second tensimeter 6 whether to dredge.This blow device forms an entirety by reduction valve 3, first tensimeter 4, first flow operation valve 5 rationally assembling, and structure is simple, and by one man operation, and can be easy to processing and fabricating, cost is lower; This blow device, from heavy and light, can be carried by single, is a kind of portable blow device; Use this blow device, need not stop production, improve the continuity of production; This blow device reduces the labour intensity of worker, improves work efficiency, improves the Stability and veracity of differential pressure flowmeter continuous data.
In view of the medium in some pipeline has toxicity, poisonous medium may reflux along pipeline, accumulates in pipeline, when disconnecting the connection of part, overflows in pipeline, contaminated environment, crisis worker personal safety.For improving the security of above-mentioned blow device, in one embodiment of the invention, the first retaining valve 7, first retaining valve 7 also comprised on the pipeline that is arranged between described second tensimeter 6 and described web member can prevent poisonous medium from refluxing along pipeline, improves security.Meanwhile, should also be noted that the switching sequence of valve group, when dredge blockage, the blowoff valve 12 finally opening five valve groups should be controlled; At the end of dredging, the blowoff valve 12 of five valve groups should be closed at first.
Instrument in this blow device and valve more, for improving the serviceable life of instrument and valve and ensureing that it runs well, in one embodiment of the invention, pipeline between described reduction valve 3 and described first retaining valve 7 is stainless steel hard tube, stainless steel hard tube in use not easily bends distortion, can support fixing above-mentioned instrument and valve well; Pipeline between described first retaining valve 7 and described web member is stainless steel pressure tight metal flexible pipe, bent, has both facilitated and has used in all size space, in turn ensure that high pressure compressed gas can not be revealed.
In view of the pressure pipeline 17 of differential pressure flowmeter is two, the purging dredging efficiency of one one is too low, affect work efficiency, for this reason, in one embodiment of the invention, pipeline between described first tensimeter 4 and described first flow operation valve 5 is connected with bypass line, and described bypass line is disposed with second control valve 8, the 3rd tensimeter 9 and the second retaining valve 10, the endpiece of described bypass line is provided with web member.During dredging, above-mentioned blow device is communicated with two blowoff valves 12 of five valve groups respectively, dredges simultaneously, improve work efficiency.
For reducing production cost, in one embodiment of the invention, above-mentioned first tensimeter 4, second tensimeter 6 and the 3rd tensimeter 9 are pointer pressure.Preferably, the upper limit operation pressure of pointer pressure is 36MPa.
In view of the character of pipeline internal medium, compressed gas source is preferably inert gas, and in one embodiment of the invention, described compressed gas source bottle is compressed nitrogen gas cylinder 1.Preferably, compressed nitrogen gas cylinder 1 adopts working pressure to be 30MPa, and volume is the steel cylinder of 6.8 liters.
In view of some medium may be heat-sensitive substance, be bonded together tightly with pressure pipeline 17 inwall, depend merely on pressure gas and purge, dredging effect is undesirable.For this reason, in one embodiment of the invention, described compressed gas source bottle is 2, and one is compressed nitrogen gas cylinder 1, and another is compressed steam bottle 2, and described compressed nitrogen gas cylinder 1 is communicated with described reduction valve 3 by T-valve 11 with described compressed steam bottle 2.Can first utilize steam to heat heat-sensitive substance, reduce the cohesive of tamper and pressure pipeline 17 inwall, then, purge with high pressure nitrogen again, solve the practical problems in production, improve dredging effect and efficiency, improve the Stability and veracity of differential pressure flowmeter continuous data.
Conveniently connect, in one embodiment of the invention, above-mentioned web member is rapid-acting coupling.
Conveniently carry, in one embodiment of the invention, described compressed gas source bottle is placed on removable wooden handcart.
Above a kind of portable online blow device for differential pressure flowmeter provided by the present invention is described in detail.Apply specific embodiment herein to set forth principle of the present invention and embodiment, the explanation of above embodiment just understands method of the present invention and core concept thereof for helping.It should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention, can also carry out some improvement and modification to the present invention, these improve and modify and also fall in the protection domain of the claims in the present invention.
Claims (9)
1. the portable online blow device for differential pressure flowmeter, it is characterized in that, comprise the compressed gas source bottle be communicated with successively by pipeline, reduction valve, the first tensimeter, first flow operation valve and the second tensimeter, the endpiece of described pipeline is provided with web member.
2. the portable online blow device for differential pressure flowmeter according to claim 1, is characterized in that, also comprises the first retaining valve on the pipeline that is arranged between described second tensimeter and described web member.
3. the portable online blow device for differential pressure flowmeter according to claim 2, it is characterized in that, pipeline between described reduction valve and described first retaining valve is stainless steel hard tube, and the pipeline between described first retaining valve and described web member is stainless steel pressure tight metal flexible pipe.
4. the portable online blow device for differential pressure flowmeter according to claim 3, it is characterized in that, pipeline between described first tensimeter and described first flow operation valve is connected with bypass line, described bypass line is disposed with second control valve, the 3rd tensimeter and the second retaining valve, the endpiece of described bypass line is provided with web member.
5. the portable online blow device for differential pressure flowmeter according to claim 4, is characterized in that, described first tensimeter, the second tensimeter and the 3rd tensimeter are pointer pressure.
6. the portable online blow device for differential pressure flowmeter according to Claims 1 to 5 any one, is characterized in that, described compressed gas source bottle is compressed nitrogen gas cylinder.
7. the portable online blow device for differential pressure flowmeter according to Claims 1 to 5 any one, it is characterized in that, described compressed gas source bottle is 2, one is compressed nitrogen gas cylinder, another is compressed steam bottle, and described compressed nitrogen gas cylinder is communicated with described reduction valve by T-valve with described compressed steam bottle.
8. the portable online blow device for differential pressure flowmeter according to Claims 1 to 5 any one, is characterized in that, described web member is rapid-acting coupling.
9. the portable online blow device for differential pressure flowmeter according to Claims 1 to 5 any one, is characterized in that, described compressed gas source bottle is placed on removable wooden handcart.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510364248.0A CN104897229A (en) | 2015-06-26 | 2015-06-26 | Portable online purging device for differential pressure flowmeter |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510364248.0A CN104897229A (en) | 2015-06-26 | 2015-06-26 | Portable online purging device for differential pressure flowmeter |
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| CN104897229A true CN104897229A (en) | 2015-09-09 |
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| CN201510364248.0A Pending CN104897229A (en) | 2015-06-26 | 2015-06-26 | Portable online purging device for differential pressure flowmeter |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107156894A (en) * | 2017-06-29 | 2017-09-15 | 红云红河烟草(集团)有限责任公司 | A kind of device of detection SIROX warming and humidifying steam hole patency |
| CN109108001A (en) * | 2017-06-26 | 2019-01-01 | 大唐环境产业集团股份有限公司 | A kind of desulfurizer mist eliminator differential pressure measurement pipeline automatic blowout device and blowing method |
| CN111014193A (en) * | 2019-11-12 | 2020-04-17 | 攀钢集团攀枝花钢钒有限公司 | Cleaning method for blockage of flowmeter pressure taking device and pressure stabilizing input device thereof |
| CN111693107A (en) * | 2019-03-12 | 2020-09-22 | 上海梅山钢铁股份有限公司 | Multifunctional probe combination device of power bar flowmeter |
| CN112916544A (en) * | 2019-12-06 | 2021-06-08 | 中国石油天然气股份有限公司 | Blockage removing device and blockage removing method for condensate cylinder |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109108001A (en) * | 2017-06-26 | 2019-01-01 | 大唐环境产业集团股份有限公司 | A kind of desulfurizer mist eliminator differential pressure measurement pipeline automatic blowout device and blowing method |
| CN109108001B (en) * | 2017-06-26 | 2023-10-13 | 大唐环境产业集团股份有限公司 | Automatic purging device and purging method for differential pressure measurement pipeline of demister of desulfurizing tower |
| CN107156894A (en) * | 2017-06-29 | 2017-09-15 | 红云红河烟草(集团)有限责任公司 | A kind of device of detection SIROX warming and humidifying steam hole patency |
| CN111693107A (en) * | 2019-03-12 | 2020-09-22 | 上海梅山钢铁股份有限公司 | Multifunctional probe combination device of power bar flowmeter |
| CN111014193A (en) * | 2019-11-12 | 2020-04-17 | 攀钢集团攀枝花钢钒有限公司 | Cleaning method for blockage of flowmeter pressure taking device and pressure stabilizing input device thereof |
| CN112916544A (en) * | 2019-12-06 | 2021-06-08 | 中国石油天然气股份有限公司 | Blockage removing device and blockage removing method for condensate cylinder |
| CN112916544B (en) * | 2019-12-06 | 2022-07-05 | 中国石油天然气股份有限公司 | Blockage removing device and blockage removing method for condensate cylinder |
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