CN208537735U - A kind of sampling line finds out and stop device - Google Patents
A kind of sampling line finds out and stop device Download PDFInfo
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- CN208537735U CN208537735U CN201820997390.8U CN201820997390U CN208537735U CN 208537735 U CN208537735 U CN 208537735U CN 201820997390 U CN201820997390 U CN 201820997390U CN 208537735 U CN208537735 U CN 208537735U
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- sampling line
- detecting device
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Abstract
The utility model discloses a kind of sampling lines to find out and stop device, including tube body, the first end and second end of tube body is connect with compressed air source and sampling line respectively, tube body is equipped with pressure-detecting device, is equipped between pressure-detecting device and first end on tube body for surveying between the first stifled valve, pressure-detecting device and second end the second valve being equipped with for measuring bleed pressure.Device is found out and stopped using sampling line provided by the utility model, compressed air enters in tube body through the first end of tube body, first valve is opened the second valve and is closed, it is detected at this time by pressure of the pressure-detecting device to compressed air source, the first valve and the second valve open simultaneously afterwards, compressed air is by tube body and through the second flow direction valve to sampling line, after air-stable circulation to be compressed, first valve is closed, anti- atmospheric pressure has been detected whether by pressure-detecting device at this time, it is in this way then illustrate that the sampling line has blocking, as otherwise illustrated the sampling line without blocking.
Description
Technical field
The utility model relates to pipeline detection technique field, finds out and stop device more specifically to a kind of sampling line.
Background technique
Modern large-size thermal power plant majority just gradually moves towards cleaning, but dirt in boiler smoke and corrosive substance easily make
The blocking of thermal control sampling line.It prevents sampling from blocking and can accurately measure, must be pursued in thermal power plant's thermal control measurement, it is common easy
Stifled sampling line such as boiler tube leak detection, combustion chamber draft, SCR flue gas pressures, coal pulverizer pressure, various other wind pressure etc..Thermal motor
The above easily stifled sampling line need to be checked when group maintenance, it is desirable that the high accuracy energy found out and stopped, it is convenient to find and dredge in time
Pipeline is blocked, ensures that measuring point continuously accurately measures.
At present more the sampling line of mainstream it is anti-blocking, find out and stop mode:
1. periodically being purged to sampling line during thermal power unit operation using compressed air, the method is most commonly seen and has
Effect, but in view of unit long-term operation, certain sampling pipes still block, and should not find when maintenance；
2. using conventional anti-blocking sampler (built-in three layers of anti-jamming mechanism), from the anti-blocking dress of deashing (quiet, dynamic pressure) sampler
It sets, though these products have some effects on block-proof pressure-taking, not it is obvious that still often to cause blockages.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of sampling lines to find out and stop device, blocked up with solving existing survey
Method more difficult discovery and the stifled unconspicuous problem of effect of survey in maintenance.
In order to achieve the above object, the utility model provides the following technical solutions:
A kind of sampling line finds out and stop device, including tube body, the first end and second end of the tube body respectively with compressed air
Source is connected with sampling line, and the tube body is equipped with pressure-detecting device, the pressure-detecting device and described on the tube body
It is equipped between first end and is equipped between the first stifled valve, the pressure-detecting device and the second end for measuring gas source for surveying
Second valve of pressure.
Preferably, the first end of the tube body and the second end are respectively equipped with gas source inlet cylinder and gas source Exported Cone, institute
State gas source inlet cylinder and the source outlet cylinder respectively included along the axial direction tapered portion that diameter reduces from the inside to the outside, the gas source into
Mouth cylinder and the source outlet cylinder are removably fixedly connected with the tube body respectively.
Preferably, the gas source inlet cylinder and the source outlet cylinder are connect with the tube body through being screwed respectively.
Preferably, the gas source inlet cylinder is connected with the variable hose of the diameter for connecting with compressed air source.
Preferably, the pressure-detecting device is specially pressure gauge.
Preferably, first valve and second valve are butterfly valve.
Sampling line provided by the utility model finds out and stop device, including tube body, the first end and second end of tube body respectively with
Compressed air source is connected with sampling line, and tube body is equipped with pressure-detecting device, on tube body between pressure-detecting device and first end
Equipped with for surveying between the first stifled valve, pressure-detecting device and second end the second valve being equipped with for measuring bleed pressure.
Device is found out and stopped using sampling line provided by the utility model, compressed air enters tube body through the first end of tube body
In, the first valve is opened the second valve and is closed, it is detected at this time by pressure of the pressure-detecting device to compressed air source, after
First valve and the second valve open simultaneously, and compressed air is to be compressed by tube body and through the second flow direction valve to sampling line
After air-stable circulation, the first valve is closed, anti-atmospheric pressure has been detected whether by pressure-detecting device at this time, has then been said in this way
The bright sampling line has blocking, such as otherwise illustrates the sampling line without blocking.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the structural schematic diagram that a kind of sampling line provided by the embodiment of the utility model finds out and stop device.
It is marked in attached drawing as follows:
Hose 1, gas source inlet cylinder 2, the first valve 3, tube body 4, pressure-detecting device 5, the second valve 6, source outlet cylinder
7。
Specific embodiment
The utility model embodiment discloses a kind of sampling line and finds out and stop device, to solve existing survey blocking method in maintenance
More difficult discovery and the stifled unconspicuous problem of effect of survey.
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Referring to Fig. 1, Fig. 1 is the structural representation that a kind of sampling line provided by the embodiment of the utility model finds out and stop device
Figure.
In a kind of specific embodiment, sampling line provided by the utility model finds out and stop device, including tube body 4, tube body 4
It is equipped with pressure-detecting device 5, is equipped between pressure-detecting device 5 and first end on tube body 4 for surveying the first stifled valve 3, pressure
The second valve 6 for measuring bleed pressure is equipped between force checking device 5 and second end, wherein tube body 4 is generally stainless steel
Pipe, 4 diameter of tube body are 20mm, and the first end of tube body 4 is connect with compressed air source, and second end is connect with sampling line, on tube body 4
Pressure-detecting device 5 be preferably pressure gauge, be removably fixedly connected between pressure-detecting device 5 and tube body 4, as screw thread connect
It connects, the first valve 3 and the second valve 6 are preferably manually-operated gate, and in one embodiment, the first valve 3 and the second valve 6 are preferably
It can be configured according to actual needs in other embodiments for butterfly valve.
When detecting, the first valve 3 is opened first, the second valve 6 is closed, one end that compressed air source passes through tube body 4
It is flow to pressure-detecting device 5 into tube body 4, pressure-detecting device 5 is detected and recorded to the pressure of compressed air source, generally
Pressure value floats up and down in 0.4MPa, then that the first valve 3 and the second valve 6 is fully open, purges 2-3 minutes, quickly closes
The first valve 3 is closed, pressure is found out and stopped in the record display of pressure-detecting device 5 at this time, when pressure is greater than 0MPa, that is, can determine whether to take
Sample pipeline blockage needs to dredge.And dust etc. certain in sampling line can be dredged by above-mentioned blowing method,
Also corresponding purge operation is able to carry out while finding out and stopping, it is simple to operate.
Device is found out and stopped using sampling line provided by the utility model, compressed air enters tube body 4 through the first end of tube body 4
In, the first valve 3 is opened the second valve 6 and is closed, and is examined at this time by pressure of the pressure-detecting device 5 to compressed air source
It surveys, rear first valve 3 and the second valve 6 open simultaneously, and compressed air is by tube body 4 and through the second valve 6 flow direction to probe tube
First valve 3 is closed after air-stable circulation to be compressed, has detected whether anti-air pressure by pressure-detecting device 5 at this time by road
Power then illustrates that the sampling line has blocking in this way, such as otherwise illustrates the sampling line without blocking.
Specifically, the first end and second end of tube body 4 is respectively equipped with gas source inlet cylinder 2 and gas source Exported Cone 7, gas source inlet
Cylinder 2 and gas source Exported Cone 7 are respectively included along the axial direction tapered portion that diameter reduces from the inside to the outside, gas source inlet cylinder 2 and source outlet
Cylinder 7 is removably fixedly connected with tube body 4 respectively.Thus it is arranged, so that the device can adapt to the probe tube of different bores
Road, it is outside interior, separate 4 one end of tube body is that tapered portion, which connect one end with tube body 4, and diameter is sequentially reduced from the inside to the outside, tapered portion
Taper change to meet the cooperation with the sampling line of different-diameter, certainly, in other embodiments, can also be according to taking
The diameter setting diameter of sample pipeline constant gas source inlet cylinder 2 and gas source Exported Cone 7, in the protection scope of the utility model
It is interior.
Further, gas source inlet cylinder 2 and gas source Exported Cone 7 are connect with tube body 4 through being screwed respectively, be thus arranged with
It is easy to disassemble.
In one embodiment, gas source inlet cylinder 2 is connected with the variable hose of the diameter for connecting with compressed air source
1.When finding out and stopping device and being connected from different sampling line, needed for gas flow be different, in order to meet different probe tubes
The different demands of air inflow when road is found out and stopped, carry out above-mentioned setting, and hose 1 is expanded full to change diameter itself when air inflow increases
Sufficient air inlet, hose 1 are specially plastic flexible pipe 1.
Finally, it is to be noted that, herein, relational terms such as first and second and the like be used merely to by
One entity or operation are distinguished with another entity or operation, without necessarily requiring or implying these entities or operation
Between there are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant meaning
Covering non-exclusive inclusion, so that the process, method, article or equipment for including a series of elements not only includes that
A little elements, but also including other elements that are not explicitly listed, or further include for this process, method, article or
The intrinsic element of equipment.In the absence of more restrictions, the element limited by sentence " including one ... ", not
There is also other identical elements in the process, method, article or apparatus that includes the element for exclusion.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.
The foregoing description of the disclosed embodiments can be realized professional and technical personnel in the field or using originally practical new
Type.Various modifications to these embodiments will be readily apparent to those skilled in the art, and determine herein
The General Principle of justice can be realized in other embodiments without departing from the spirit or scope of the present utility model.Cause
This, the present invention will not be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The widest scope consistent with features of novelty.
Claims (6)
1. a kind of sampling line finds out and stop device, which is characterized in that including tube body, the first end and second end of the tube body respectively with
Compressed air source is connected with sampling line, and the tube body is equipped with pressure-detecting device, the pressure detecting dress on the tube body
It sets to be equipped between the first end and be used for for surveying to be equipped between the first stifled valve, the pressure-detecting device and the second end
Measure the second valve of bleed pressure.
2. sampling line according to claim 1 finds out and stop device, which is characterized in that the first end of the tube body and described
Two ends are respectively equipped with gas source inlet cylinder and gas source Exported Cone, and the gas source inlet cylinder and the source outlet cylinder are respectively included along axis
The tapered portion reduced to diameter from the inside to the outside, the gas source inlet cylinder and the source outlet cylinder are detachable with the tube body respectively
Be fixedly connected.
3. sampling line according to claim 2 finds out and stop device, which is characterized in that the gas source inlet cylinder and the gas source
Exported Cone is connect with the tube body through being screwed respectively.
4. sampling line according to claim 3 finds out and stop device, which is characterized in that the gas source inlet cylinder, which is connected with, to be used for
The variable hose of the diameter being connect with compressed air source.
5. sampling line according to claim 4 finds out and stop device, which is characterized in that the pressure-detecting device is specially to press
Power table.
6. sampling line according to claim 5 finds out and stop device, which is characterized in that first valve and second valve
Door is butterfly valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820997390.8U CN208537735U (en) | 2018-06-26 | 2018-06-26 | A kind of sampling line finds out and stop device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820997390.8U CN208537735U (en) | 2018-06-26 | 2018-06-26 | A kind of sampling line finds out and stop device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208537735U true CN208537735U (en) | 2019-02-22 |
Family
ID=65379626
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820997390.8U Active CN208537735U (en) | 2018-06-26 | 2018-06-26 | A kind of sampling line finds out and stop device |
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| Country | Link |
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| CN (1) | CN208537735U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113790879A (en) * | 2021-09-14 | 2021-12-14 | 湖北三江航天万山特种车辆有限公司 | Device and method for detecting unobstructed air path |
-
2018
- 2018-06-26 CN CN201820997390.8U patent/CN208537735U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113790879A (en) * | 2021-09-14 | 2021-12-14 | 湖北三江航天万山特种车辆有限公司 | Device and method for detecting unobstructed air path |
| CN113790879B (en) * | 2021-09-14 | 2024-02-13 | 湖北三江航天万山特种车辆有限公司 | Device and method for detecting unobstructed gas path |
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