CN108267192A - A kind of air blowing instrument pipeline blowback sweeping device and method - Google Patents
A kind of air blowing instrument pipeline blowback sweeping device and method Download PDFInfo
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- CN108267192A CN108267192A CN201711452064.5A CN201711452064A CN108267192A CN 108267192 A CN108267192 A CN 108267192A CN 201711452064 A CN201711452064 A CN 201711452064A CN 108267192 A CN108267192 A CN 108267192A
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- valve
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/14—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measurement of pressure
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Abstract
A kind of air blowing instrument pipeline blowback sweeping device, including gas blow pipe, gas blow pipe is extend into liquid waste tank, and the gas blow pipe other end, by the way that sky/pickling shut-off valve is pressed to be connect with pressure sky/acid filling surge tank in blowback sweeping device, pressure sky/acid filling surge tank into sour shut-off valve by connecting acid funnel；Gas blow pipe is connect after also connecting shut-off valve by pipeline with pressure sky/acid filling surge tank in differential pressure/pressure transmitter, air filtration pressure reducing valve and blowback sweeping device simultaneously, wherein passing through transmitter shut-off valve with the connecting pipeline for connecting differential pressure/pressure transmitter；Connecting pipeline with pressure sky/acid filling surge tank in blowback sweeping device is by pressing empty blowback shut-off valve；And air filtration pressure reducing valve is connect again with air source main valve, and air source main valve connection air source.
Description
Technical field
The invention belongs to blowbacks to sweep field, and in particular to a kind of air blowing instrument pipeline blowback sweeping device and method.
Background technology
Blowing type liquid level is calculated as contact-free level measuring instrumentss, and the liquid medium in open or closed container can be carried out
Level gauging.In addition to gas blow pipe is contacted with measured medium, blowning installation and differential pressure/pressure transmitter do not connect with measured medium
It touches, so as to protect measuring cell, reduces the maintenance of instrument, increase the reliability of measurement.Differential pressure/pressure transmitter is surveyed
Pressure energy follow the variation of gas blow pipe outlet pressure automatically and change, so signal and the medium level of transmitter output into
Correspondence.
Relational expression is：△ Ρ=ρ gh
In formula：△Ρ：Pressure (transmitter measurement pressure)
ρ：Media density
g：Acceleration of gravity
h：Liquid level
Due to the measurement characteristic of blowing type liquid level meter, other than it can measure the liquid level of clean liquid, the liquid that is corrosive,
The larger liquid of viscosity, high temperature, liquid containing solid particle, particularly nuclear industry system post treatment production line level gauging operating mode under
It is used widely, but these poisonous and harmful media, Korrosionsmedium, the larger medium of viscosity, middle and high radioactive liquid waste chemical group
Dividing complexity, easily crystallized in gas blow pipe outlet portion, gas blow pipe outlet end head is caused to block not smooth, gas flow is unstable, thus
It is inaccurate to influence differential pressure/pressure transmitter measured value, causes measurement error, production accident can be caused when serious.
In the daily maintenance of instrument, gas blow pipe is proposed into container, the crystallization at periodic cleaning air blowing pipe port
Object；It is also easy to operate although time-consuming and laborious under clean liquid operating mode；Poisonous and harmful medium, Korrosionsmedium, viscosity compared with
Under big mixture condition, cleaning crystal work in gas blow pipe outlet is extremely inconvenient, first has to pour out in medium, replaces；Secondly, container
It cleans up to harmful substance allowed band, operating personnel dress special protective articles and cleared up.It post-processes and gives birth in nuclear fuel
Under the special operation conditions such as the middle and high radioactive liquid waste liquid measure that production process generates, other than replacing gas blow pipe, do not solve preferably
Certainly method；But it is increasingly complex to stain the solid waste disposals such as active gas blow pipe.For a long time, problem is not solved
Certainly.
Invention content
It is an object of the invention to a kind of air blowing instrument pipeline blowback sweeping device and methods, solve the crystallization of insufflation line port
Easily stifled technical barrier realizes air blast liquid level measuring system Maintenance free, stable operation.
Technical scheme is as follows：A kind of air blowing instrument pipeline blowback sweeping device, including gas blow pipe, gas blow pipe stretches into
Into liquid waste tank, and the gas blow pipe other end is by pressing sky/pickling shut-off valve and pressure sky/acid filling surge tank in blowback sweeping device
Connection, pressure sky/acid filling surge tank into sour shut-off valve by connecting acid funnel；Gas blow pipe is also by same after pipeline connection shut-off valve
When connect with pressure sky/acid filling surge tank in differential pressure/pressure transmitter, air filtration pressure reducing valve and blowback sweeping device, wherein with
The connecting pipeline of connection differential pressure/pressure transmitter passes through transmitter shut-off valve；With pressure sky/acid filling surge tank in blowback sweeping device
Connecting pipeline pass through and press empty blowback shut-off valve；And air filtration pressure reducing valve is connect again with air source main valve, and air source main valve connects
Air source.
A kind of method of air blowing instrument pipeline blowback sweeping device, includes the following steps：
S1:Air source main valve, air filtration pressure reducing valve are closed successively, and differential pressure/pressure transmitter is stopped transport；
S2:Dust technology is configured, opens into sour shut-off valve, pressure sky/acid filling surge tank is flowed by acid funnel, is closed into acid
Shut-off valve；
S3:Air supply manifold's shut-off valve is opened, empty blowback shut-off valve is pressed, adjusts air filtration pressure reducing valve, transmitter is closed and cuts
Only valve prevents hypertonia from differential pressure/pressure transmitter bellows being caused to deform；
S4:Shut-off valve is closed, is slowly opened into sour shut-off valve, under the effect of the pressure, nitric acid is pressed into gas blow pipe, is closed
Air supply manifold's shut-off valve is closed, at this point, the dust technology for flowing into pressure sky/acid filling surge tank in S2 by acid funnel impregnates dissolving air blowing
The crystalline material that pipe 1 exports；
S5:Air supply manifold's shut-off valve is opened, adjusts air filtration pressure reducing valve, is purged by the crystalline material for decomposing softening
It cleans out；
S6:If gas blow pipe outlet crystallization is serious, step S1-S5 is repeated, until gas blow pipe outlet obstruction is dredged completely；
S7:Close the empty blowback shut-off valve of pressure, into sour shut-off valve, into sour shut-off valve, open shut-off valve, transmitter shut-off valve,
Air filtration pressure reducing valve is adjusted to instrumentation pressure, differential pressure/pressure transmitter puts into operation.
In the S2,1 liter of 2 moles of dust technology is configured.
In the S3, air filtration pressure reducing valve is adjusted, the pressure gauge on air filtration pressure reducing valve is made to be designated as 0.02MPa.
In the S5, after ten minutes, air supply manifold's shut-off valve is opened.
In the S5, air filtration pressure reducing valve is adjusted, the output pressure of air filtration pressure reducing valve is made to rise to 0.2MPa.
The remarkable result of the present invention is：Pressure sky/pickling component of use, with the empty blowback of pressure and the technique of pickling cycle
Flow has the characteristics that flow is simple, at low cost, efficient, it can be achieved that cleaning to insufflation line port crystal, processing.
Description of the drawings
Fig. 1 is air blowing instrument pipeline blowback sweeping device schematic diagram of the present invention
In figure：1- gas blow pipes；2- air filtration pressure reducing valves；3- differential pressure/pressure transmitters；4- shut-off valves；
5- air source main valves；The empty blowback shut-off valve of 6- pressures；7- presses sky/pickling shut-off valve；8- is into sour shut-off valve；
9- presses sky/acid filling surge tank；10- acid funnels；11- transmitter shut-off valves；12 blowback sweeping devices；
13 liquid waste tanks
Specific embodiment
A kind of air blowing instrument pipeline blowback sweeping device, including gas blow pipe 1, gas blow pipe 1 is extend into liquid waste tank 13, and is blown
1 other end of tracheae presses sky/filling by the way that sky/pickling shut-off valve 7 is pressed to be connect with pressure sky/acid filling surge tank 9 in blowback sweeping device 12
Acid buffering tank 9 into sour shut-off valve 8 by connecting acid funnel 10；Gas blow pipe 1 also by pipeline connect shut-off valve 4 after simultaneously with difference
Pressure sky/acid filling surge tank 9 in pressure/pressure transmitter 3, air filtration pressure reducing valve 2 and blowback sweeping device 12 connects, wherein with even
The connecting pipeline for connecing differential pressure/pressure transmitter 3 passes through transmitter shut-off valve 11；Delay with pressure sky/acid filling in blowback sweeping device 12
The connecting pipeline of tank 9 is rushed by pressing empty blowback shut-off valve 6；And air filtration pressure reducing valve 2 is connect again with air source main valve 5, and air source
Main valve 5 connects air source
A kind of air blowing instrument pipeline back-blowing method, includes the following steps：
1st, air source main valve 5 is closed successively, and air filtration pressure reducing valve 2, differential pressure/pressure transmitter 3 is stopped transport.
2nd, 1 liter of 2 moles of dust technology is configured, opens into sour shut-off valve 8, flowing into pressure sky/acid filling by acid funnel 10 buffers
Tank 9 is closed into sour shut-off valve 8.
3rd, air supply manifold's shut-off valve 5 is opened, empty blowback shut-off valve 6 is pressed, adjusts air filtration pressure reducing valve 2, make air filtration
Pressure gauge on pressure reducing valve 2 is designated as 0.02MPa, closes transmitter shut-off valve 11, prevents hypertonia from differential pressure/pressure being caused to become
3 bellows of device is sent to deform.
4th, shut-off valve 4 is closed, is slowly opened into sour shut-off valve 7, under the effect of the pressure, nitric acid is pressed into gas blow pipe 1,
Air supply manifold's shut-off valve 5 is closed, at this point, the dust technology immersion for flowing into pressure sky/acid filling surge tank 9 in S2 by acid funnel 10 is molten
The crystalline material that solution (softening is decomposed) gas blow pipe 1 exports.
5th, after ten minutes, air supply manifold's shut-off valve 5 is opened, adjustment air filtration pressure reducing valve 2 makes air filtration pressure reducing valve 2
Output pressure rise to 0.2MPa, through decomposition softening crystalline material be easy to be purged to clean out.
6th, such as the outlet of gas blow pipe 1 crystallization is serious, repeats step 1-5, until 1 outlet obstruction of gas blow pipe is dredged completely.
7th, close the empty blowback shut-off valve 6 of pressure, into sour shut-off valve 7, into sour shut-off valve 8, open shut-off valve 4, transmitter cut-off
Valve 11, to instrumentation pressure, differential pressure/pressure transmitter 3 puts into operation adjustment air filtration pressure reducing valve 2.
Claims (6)
1. a kind of air blowing instrument pipeline blowback sweeping device, it is characterised in that：Including gas blow pipe (1), gas blow pipe (1) extend into waste liquid
In storage tank (13), and gas blow pipe (1) other end is by pressing sky/pickling shut-off valve (7) and pressure sky/filling in blowback sweeping device (12)
Acid buffering tank (9) connects, and pressure sky/acid filling surge tank (9) into sour shut-off valve (8) by connecting acid funnel (10)；Gas blow pipe (1)
Shut-off valve (4) is also connected by pipeline and sweeps dress with differential pressure/pressure transmitter (3), air filtration pressure reducing valve (2) and blowback simultaneously afterwards
Pressure sky/acid filling surge tank (9) connection in (12) is put, wherein passing through change with the connecting pipeline for connecting differential pressure/pressure transmitter (3)
Send device shut-off valve (11)；Connecting pipeline with the pressure sky in blowback sweeping device (12)/acid filling surge tank (9) is by pressing empty blowback to cut
Only valve (6)；And air filtration pressure reducing valve (2) is connect again with air source main valve (5), and air source main valve (5) connection air source.
A kind of a kind of 2. application method of air blowing instrument pipeline blowback sweeping device as described in claim 1, it is characterised in that：Packet
Include following steps：
S1:Air source main valve (5), air filtration pressure reducing valve (2) are closed successively, and differential pressure/pressure transmitter (3) is stopped transport；
S2:Dust technology is configured, opens into sour shut-off valve (8), pressure sky/acid filling surge tank (9) is flowed by acid funnel (10), is closed
It closes into sour shut-off valve (8)；
S3:Air supply manifold's shut-off valve (5) is opened, empty blowback shut-off valve (6) is pressed, adjusts air filtration pressure reducing valve (2), close pick-up
Device shut-off valve (11) prevents hypertonia from differential pressure/pressure transmitter (3) bellows being caused to deform；
S4:Shut-off valve (4) is closed, is slowly opened into sour shut-off valve (7), under the effect of the pressure, nitric acid is pressed into gas blow pipe (1)
It is interior, air supply manifold's shut-off valve (5) is closed, at this point, flowing into the dilute of pressure sky/acid filling surge tank (9) by acid funnel (10) in S2
The crystalline material that nitric acid dousing dissolving gas blow pipe (1) exports；
S5:Air supply manifold's shut-off valve (5) is opened, adjustment air filtration pressure reducing valve (2) is blown by the crystalline material for decomposing softening
It sweeps and cleans out；
S6:If gas blow pipe (1) outlet crystallization is serious, step 1-5 is repeated, until gas blow pipe (1) outlet obstruction is dredged completely；
S7:Close the empty blowback shut-off valve (6) of pressure, into sour shut-off valve (7), into sour shut-off valve (8), open shut-off valve (4), transmitter
Shut-off valve (11), to instrumentation pressure, differential pressure/pressure transmitter (3) puts into operation adjustment air filtration pressure reducing valve (2).
3. a kind of air blowing instrument pipeline back-blowing method according to claim 2, it is characterised in that：In the S2, configuration 1
Rise 2 moles of dust technologies.
4. a kind of air blowing instrument pipeline back-blowing method according to claim 2, it is characterised in that：In the S3, adjust
Air filtration pressure reducing valve (2) makes the pressure gauge on air filtration pressure reducing valve (2) be designated as 0.02MPa.
5. a kind of air blowing instrument pipeline back-blowing method according to claim 2, it is characterised in that：In the S5, very
Zhong Hou opens air supply manifold's shut-off valve (5).
6. a kind of air blowing instrument pipeline back-blowing method according to claim 2, it is characterised in that：In the S5, adjustment
Air filtration pressure reducing valve (2) makes the output pressure of air filtration pressure reducing valve (2) rise to 0.2MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711452064.5A CN108267192A (en) | 2017-12-28 | 2017-12-28 | A kind of air blowing instrument pipeline blowback sweeping device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711452064.5A CN108267192A (en) | 2017-12-28 | 2017-12-28 | A kind of air blowing instrument pipeline blowback sweeping device and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108267192A true CN108267192A (en) | 2018-07-10 |
Family
ID=62772868
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711452064.5A Pending CN108267192A (en) | 2017-12-28 | 2017-12-28 | A kind of air blowing instrument pipeline blowback sweeping device and method |
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| Country | Link |
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| CN (1) | CN108267192A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108801395A (en) * | 2018-08-03 | 2018-11-13 | 四川金象赛瑞化工股份有限公司 | A kind of thermal insulation clamp blows formula liquid level test structure and method |
| CN110749781A (en) * | 2019-11-28 | 2020-02-04 | 北京普惠实华科技有限公司 | Powder static continuous monitor |
| CN112629613A (en) * | 2019-10-09 | 2021-04-09 | 上海孚凌自动化控制系统股份有限公司 | Blowing liquid level meter system |
| CN113431980A (en) * | 2021-07-02 | 2021-09-24 | 中国核电工程有限公司 | Crystallization device is prevented to gas blow pipeline, measurement system and spent fuel aftertreatment system blow |
| CN114166282A (en) * | 2021-12-07 | 2022-03-11 | 中国建筑材料科学研究总院有限公司 | Blowing type liquid level meter |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5713319A (en) * | 1980-06-30 | 1982-01-23 | Toshiba Corp | Measuring instrument for liquid level |
| CN201666807U (en) * | 2010-03-17 | 2010-12-08 | 河北钢铁股份有限公司邯郸分公司 | Device for preventing pressure pipe of transmitter meter from being blocked |
| CN202648738U (en) * | 2012-05-13 | 2013-01-02 | 钟祥凯龙楚兴化工有限责任公司 | Air blowing type liquid level meter |
| CN203400542U (en) * | 2013-07-04 | 2014-01-22 | 江苏碧水源环境科技有限责任公司 | Filter cloth online soaking and pickling system of filter press in sludge dewatering work |
| CN206291942U (en) * | 2016-12-01 | 2017-06-30 | 上海孚凌自动化控制系统有限公司 | A kind of blowing type liquid level meter |
-
2017
- 2017-12-28 CN CN201711452064.5A patent/CN108267192A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5713319A (en) * | 1980-06-30 | 1982-01-23 | Toshiba Corp | Measuring instrument for liquid level |
| CN201666807U (en) * | 2010-03-17 | 2010-12-08 | 河北钢铁股份有限公司邯郸分公司 | Device for preventing pressure pipe of transmitter meter from being blocked |
| CN202648738U (en) * | 2012-05-13 | 2013-01-02 | 钟祥凯龙楚兴化工有限责任公司 | Air blowing type liquid level meter |
| CN203400542U (en) * | 2013-07-04 | 2014-01-22 | 江苏碧水源环境科技有限责任公司 | Filter cloth online soaking and pickling system of filter press in sludge dewatering work |
| CN206291942U (en) * | 2016-12-01 | 2017-06-30 | 上海孚凌自动化控制系统有限公司 | A kind of blowing type liquid level meter |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108801395A (en) * | 2018-08-03 | 2018-11-13 | 四川金象赛瑞化工股份有限公司 | A kind of thermal insulation clamp blows formula liquid level test structure and method |
| CN112629613A (en) * | 2019-10-09 | 2021-04-09 | 上海孚凌自动化控制系统股份有限公司 | Blowing liquid level meter system |
| CN112629613B (en) * | 2019-10-09 | 2022-07-05 | 上海孚凌自动化控制系统股份有限公司 | Air blowing type liquid level meter system |
| CN110749781A (en) * | 2019-11-28 | 2020-02-04 | 北京普惠实华科技有限公司 | Powder static continuous monitor |
| CN113431980A (en) * | 2021-07-02 | 2021-09-24 | 中国核电工程有限公司 | Crystallization device is prevented to gas blow pipeline, measurement system and spent fuel aftertreatment system blow |
| CN114166282A (en) * | 2021-12-07 | 2022-03-11 | 中国建筑材料科学研究总院有限公司 | Blowing type liquid level meter |
| CN114166282B (en) * | 2021-12-07 | 2024-04-26 | 中国建筑材料科学研究总院有限公司 | Blowing type liquid level meter |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180710 |