CN207539628U - Become the anti-blocking making-up air device of absolute altitude ash conveying pipe over long distances - Google Patents
Become the anti-blocking making-up air device of absolute altitude ash conveying pipe over long distances Download PDFInfo
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- CN207539628U CN207539628U CN201721652239.2U CN201721652239U CN207539628U CN 207539628 U CN207539628 U CN 207539628U CN 201721652239 U CN201721652239 U CN 201721652239U CN 207539628 U CN207539628 U CN 207539628U
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- conveying pipe
- ash conveying
- absolute altitude
- blocking
- tonifying
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Abstract
The utility model discloses the anti-blocking making-up air device that a kind of long range becomes absolute altitude ash conveying pipe, pressure transmitter is equipped with before and after long range becomes absolute altitude ash conveying pipe ascent stage/descending branch, ascent stage peak/descending branch minimum point is equipped with wear resistant three-way, wear resistant three-way horizontal segment entrance is set up defences stifled tonifying Qi valve group, anti-blocking tonifying Qi valve group by manually switch off valve, pneumatic control valve, orifice plate, check valve set into.The advantages of device is that system is safe and reliable, high degree of automation, and operation is convenient, saves energy consumption, timeliness is strong, good economy performance.Ash pipeline frame can thoroughly solve the problems, such as that Shu Hui plant areas pipe frame structure is huge, reach Liao Quan factories integrated pipe frame and coordinate beauty according to plant area's topography setting；Ash conveying pipe ascent stage/descending branch plugging problem caused by gray columns deposits is avoided, the ash-transmission system blowpipe time is short, and compressed air consumption is small, and lifetime of system is long.
Description
Technical field
The utility model is related to the defeated gray technology field such as pulverized coal fired boiler, more particularly to a kind of long range becomes absolute altitude ash pipeline
The anti-blocking making-up air device in road.
Background technology
At present, domestic and international pulverized coal fired boiler is when ash defeated over long distances uses positive pneumatic transport, for deduster to grey library
Whens the relief of part plant area is larger or needs Midspan sag, highway etc., it is mainly the following processing mode：
Mode one：Long range ash conveying pipe is from deduster to grey library part using same absolute altitude arrangement, i.e. plant area's ash pipeline
Frame absolute altitude uses same absolute altitude, does not do rise/fall processing, plant area's ash conveying pipe stifled making-up air device in the air.Though this mode
So the plugging risk of long range ash conveying pipe is reduced, but make ash pipeline frame huge structure, on the one hand increase civil engineering costs, separately
On the one hand the coordination for influencing full factory's integrated pipe frame is beautiful.
Mode two：Long range ash conveying pipe is arranged from deduster to grey library part using change absolute altitude, i.e., with plant area's topography
It rises and falls, ash conveying pipe absolute altitude synchronizes rise/fall, and after Midspan sag, highway, ash conveying pipe absolute altitude declines immediately, the defeated ash of plant area
Pipeline does not set making-up air device.This mode ash pipeline frame structure setting is reasonable, does not increase civil engineering costs, reaches Liao Quan factories integrated pipe
The coordination of frame is beautiful.But plant area's ash conveying pipe ascent stage/descending branch gray columns easily deposits, it is long that long range sky blows the time, and compression is empty
Gas consumption amount is high, and conveying difficulty is big, and plugging probability is higher, and system operation safety is low.
Mode three：Long range ash conveying pipe is arranged from deduster to grey library part using change absolute altitude, i.e., with plant area's topography
It rises and falls, ash conveying pipe absolute altitude synchronizes rise/fall, and after Midspan sag, highway, ash conveying pipe absolute altitude declines immediately, the defeated ash of plant area
For the setting of pipeline whole process with blowing making-up air device, average 2~3m sets 1 group, every group of making-up air device by orifice plate, check valve set into.It is this
The setting of mode ash pipeline frame is reasonable, does not increase civil engineering costs, and the coordination for reaching Liao Quan factories integrated pipe frame is beautiful, because there is provided whole process
With making-up air device is blown, plugging risk is low.But the system compresses air consumption is huge, and air compressor machine number of units is more, and making-up air device quantity is huge
Greatly, initial cost and annual operating cost are all very high, and economy is poor, and are not easy to adjust with air supply along journey tonifying Qi, ash pipeline
Velocity of medium is high in road, pipeline, pipe fitting serious wear.
Utility model content
It solving the above problems, the utility model aim is to provide one kind securely and reliably, and good energy-conserving effect, stability is strong,
Good economy performance can effectively ensure that the long range change absolute altitude of long range ash conveying pipe ascent stage/grey smooth delivery of power of descending branch deposition is defeated
The anti-blocking making-up air device of grey pipeline.
In order to achieve the above object, the technical solution of the utility model is as follows：
A kind of long range becomes the anti-blocking making-up air device of absolute altitude ash conveying pipe, including wear resistant three-way and pressure transmitter, it is long away from
It is connected, risen by ascent stage or descending branch transition between the first horizontal segment and the second horizontal segment for becoming absolute altitude ash conveying pipe
Pressure is respectively provided with before section minimum point, after ascent stage peak or before descending branch peak, after descending branch minimum point
Transmitter；Ascent stage peak/descending branch minimum point is provided with wear resistant three-way, and wear resistant three-way horizontal segment entrance is provided with anti-blocking benefit
Air valve group.
The pressure difference of pressure transmitter and tonifying Qi valve group are chain.
The anti-blocking tonifying Qi valve group manually switches off valve, pneumatic control valve, orifice plate and non-return including the connection of pipeline successively
Valve, the entrance for manually switching off valve are connect with compressed air pipe, and the outlet of check-valves is connect with wear resistant three-way horizontal segment entrance.
The orifice plate pore size is adjustable.
The check-valves is arranged in be become before ascent stage peak/descending branch minimum point of absolute altitude ash conveying pipe over long distances
On tonifying Qi standpipe, highly higher than the second horizontal segment ash conveying pipe.
Pneumatic control valve and pressure transmitter pressure difference are chain.
The wear resistant three-way is with ash conveying pipe using flanged joint, flange and the anti-blocking benefit of wear resistant three-way horizontal segment entrance
The tonifying Qi pipeline of air valve group is welded to connect.
Compared with prior art, the utility model has the following advantages：
The long range of the utility model becomes the anti-blocking making-up air device of absolute altitude ash conveying pipe, becomes absolute altitude ash conveying pipe in long range
Pressure transmitter is equipped with before and after ascent stage/descending branch, ascent stage peak/descending branch minimum point is equipped with wear resistant three-way, wear-resisting
Threeway horizontal segment entrance is set up defences stifled tonifying Qi valve group, and anti-blocking tonifying Qi valve group is by manually switching off valve, pneumatic control valve, orifice plate, check-valves
Composition.The setting of pressure transmitter before and after ascent stage, descending branch, can accurate judgement there are plugging risk pipeline section, accomplish precisely
Anti-blocking, accurate tonifying Qi, compressed air caused by avoiding blindness tonifying Qi wastes.Ascent stage peak/descending branch minimum point setting is resistance to
Threeway is ground, the wear-resisting property of the point can be effectively improved, while access convenient for anti-blocking tonifying Qi valve group.The supply of compressed air can be according to
According to the variation adjust automatically of ash conveying pipe pressure difference, ensureing that long range ash conveying pipe ascent stage/descending branch deposition ash is smoothly defeated
Under the premise of sending, compressed air dosage is utmostly saved, and device is simple, easy to operate.The apparatus system is safe and reliable, from
Dynamicization degree is high, and operation is convenient, saves energy consumption, timeliness is strong, good economy performance.Ash pipeline frame can be set according to plant area's topography, thoroughly
It solves the problems, such as that Shu Hui plant areas pipe frame structure is huge, reaches Liao Quan factories integrated pipe frame and coordinate beauty；Avoid ash conveying pipe rising
Section/descending branch plugging problem caused by gray columns deposits, the ash-transmission system blowpipe time is short, and compressed air consumption is small, lifetime of system
It is long.
Further, wear resistant three-way horizontal segment entrance sets anti-blocking tonifying Qi valve group, and the valve group is by manually switching off valve, pneumatic adjusting
Valve, orifice plate, check valve set into.The anti-blocking tonifying Qi valve group quantity of the setting is few, and initial cost is small.It is normally normal to manually switch off valve
Open state when continuing component faults behind, can accomplish to close rapidly, cut off tonifying Qi air source, create conditions for subsequent components maintenance；
The manually adjustable compressed air pressure of orifice plate makes supply gas pressure and pressure match needed for defeated ash, mitigates pipe fitting, pipeline abrasion, together
When sundries in initial operating stage tonifying Qi pipeline is avoided to enter ash conveying pipe；Check-valves can avoid soot particle from entering anti-blocking tonifying Qi valve group, keep away
Exempt from valve group abrasion, extend valve group service life, check-valves is arranged on the standpipe above ash conveying pipe, avoids check-valves outlet portion
Divide dust stratification, influence the normal use of check-valves.
Further, pneumatic control valve and pressure transmitter pressure difference are chain, and the variation according to pressure difference automatically controls valve group
The aperture of middle pneumatic control valve controls compressed air require, utmostly saves compressed air, velocity of medium is fitted in ash conveying pipe
In, effectively avoid the excessive wear of ash conveying pipe, pipe fitting.Because compressed air consumption is small, therefore air compressor machine number of units is few, initial cost, year
Operating cost is low.Simultaneously can realize remote centralized Control, in control room can control valve, be not required to operating personnel and go to
Execute-in-place, the injury that live risk factor is avoided to be brought to staff, can process problem much sooner, in very great Cheng
Human resources have been saved on degree, have improved timeliness and safety.
Description of the drawings
Fig. 1 is the ascent stage structure diagram of the utility model；
Fig. 2 is the descending branch structure diagram of the utility model；
In figure：1st, first pressure transmitter, 2, second pressure transmitter, 3, third pressure transmitter, the 4, the 4th pressure becomes
Send device, 5, wear resistant three-way, 6, anti-blocking tonifying Qi valve group, 7, manually switch off valve, 8, pneumatic control valve, 9, orifice plate, 10, check-valves,
100th, first horizontal segment, 101, the ascent stage, the 102, second horizontal segment, 103, compressed air pipe, 104, descending branch.
Specific embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings.
As shown in Figure 1 and Figure 2, a kind of long range becomes the anti-blocking making-up air device of absolute altitude ash conveying pipe, including 5 He of wear resistant three-way
Pass through the ascent stage between pressure transmitter, over long distances 100 and second horizontal segment 102 of first horizontal segment of change absolute altitude ash conveying pipe
101 either before 104 transition of descending branch connection, 101 minimum point of ascent stage, after 101 peak of ascent stage or descending branch 104
Pressure transmitter is respectively provided with before peak, after 104 minimum point of descending branch；101 peaks of ascent stage/descending branch 104 is minimum
Point is provided with wear resistant three-way 5, and 5 horizontal segment entrance of wear resistant three-way is provided with anti-blocking tonifying Qi valve group 6.
First pressure transmitter 1, ascent stage 101 are equipped with before becoming 101 minimum point of absolute altitude ash conveying pipe ascent stage over long distances
Second pressure transmitter 2 is equipped with after peak, third pressure transmitter 3, descending branch are equipped with before 104 peak of descending branch
The 4th pressure transmitter 4 is equipped with after 104 minimum points, wear-resisting three are equipped at 101 peaks of ascent stage/descending branch, 104 minimum point
Logical 5,5 horizontal segment entrance of wear resistant three-way is equipped with anti-blocking tonifying Qi valve group 6.
Anti-blocking tonifying Qi valve group 6 is formed by manually switching off valve 7, pneumatic control valve 8, orifice plate 9, check-valves 10.Manually switch off valve
7th, pneumatic control valve 8, orifice plate 9 are connected with check-valves 10 successively pipeline, manually switch off the entrance of valve 7 and compressed air pipe 103
Connection, the outlet of check-valves 10 is connect with 5 horizontal segment entrance of wear resistant three-way.
Wear resistant three-way 5 and ash conveying pipe are using flanged joint, and the anti-flange of horizontal segment entrance is blind flange, live trepanning, mouth
Diameter matches with tonifying Qi pipe diameter, is welded to connect.
Manually switch off valve 7 can quick manual open and close, normally normally open, under follow-up valve group fault condition,
It can be turned off manually.
Orifice plate 9 can be realized adjusts superfeed pressure manually.
Check-valves 10 be arranged in over long distances become absolute altitude ash conveying pipe 101 peaks of ascent stage/descending branch, 104 minimum point it
On preceding tonifying Qi standpipe, highly higher than subsequent horizontal section ash conveying pipe.
The pressure difference of pressure transmitter and anti-blocking tonifying Qi valve group 6 are chain：
When the pressure difference of first pressure transmitter 1, second pressure transmitter 2 is less than setting value, 101 peak of ascent stage
Anti-blocking tonifying Qi valve group 6 is not turned on, and pressure difference is higher than setting value and is kept for a period of time do not decline, then opens 101 highest of ascent stage
The anti-blocking tonifying Qi valve group 6 of point, until pressure difference reaches setting value, the anti-blocking tonifying Qi valve group 6 of time-delay closing；
When the pressure difference of third pressure transmitter 3, the 4th pressure transmitter 4 is less than setting value, 104 minimum point of descending branch
Anti-blocking tonifying Qi valve group 6 is not turned on, and pressure difference is higher than setting value and is kept for a period of time do not decline, then opens descending branch minimum point and prevent
Stifled tonifying Qi valve group 6, until pressure difference is less than setting value, the anti-blocking tonifying Qi valve group 6 of time-delay closing.
Wear resistant three-way 5 is located at 101 peaks of ash conveying pipe ascent stage/104 minimum point of descending branch, 5 horizontal segment of wear resistant three-way
Entrance is equipped with blind flange, and the trepanning of blind flange scene, aperture matches with tonifying Qi pipe diameter, is welded to connect.
Valve 7 is manually switched off in tonifying Qi valve group 6 and is normally normally open, when continuing component faults behind, can be accomplished
It is rapid to close, cut off tonifying Qi air source.
Pneumatic control valve 8 and corresponding pressure transmitter pressure difference are chain, when pressure difference is less than setting value, pneumatic control valve
8 are not turned on, and when pressure difference higher than setting value and is kept for a period of time do not decline, pneumatic control valve 8 would automatically turn on, until pressure difference
Value reaches setting value, 8 time-delay closing of pneumatic control valve；Orifice plate 9 can manually adjust superfeed pressure；Check-valves 10 is arranged in defeated ash
On standpipe above 101 peaks of pipeline ascent stage/104 minimum point of descending branch, highly higher than 102 ash pipeline of subsequent horizontal section
Road.
Using the utility model has the advantages that, system is safe and reliable, high degree of automation, and operation is convenient, and low energy consumption, timeliness
Strong, the good economy performance of property.Ash pipeline frame can thoroughly solve the problems, such as that Shu Hui plant areas pipe frame structure is huge, reach according to plant area's topography setting
Coordinate to Liao Quan factories integrated pipe frame beautiful；Avoid ash conveying pipe ascent stage/plugging problem, defeated ash caused by descending branch gray columns deposition
The system blowpipe time is short, and compressed air consumption is small, and lifetime of system is long.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (7)
1. a kind of long range becomes the anti-blocking making-up air device of absolute altitude ash conveying pipe, it is characterised in that：Including wear resistant three-way (5) and pressure
Transmitter becomes between the first horizontal segment (100) of absolute altitude ash conveying pipe and the second horizontal segment (102) and passes through the ascent stage over long distances
(101) either before descending branch (104) transition connection ascent stage (101) minimum point, after ascent stage (101) peak or
Pressure transmitter is respectively provided with before descending branch (104) peak, after descending branch (104) minimum point；Ascent stage (101) highest
Point/descending branch (104) minimum point is provided with wear resistant three-way (5), and wear resistant three-way (5) horizontal segment entrance is provided with anti-blocking tonifying Qi valve group
(6)。
2. a kind of long range according to claim 1 becomes the anti-blocking making-up air device of absolute altitude ash conveying pipe, it is characterised in that：Pressure
The pressure difference of power transmitter and tonifying Qi valve group (6) are chain.
3. a kind of long range according to claim 1 or 2 becomes the anti-blocking making-up air device of absolute altitude ash conveying pipe, feature exists
In：The anti-blocking tonifying Qi valve group (6) manually switches off valve (7), pneumatic control valve (8), orifice plate (9) including what pipeline successively connected
With check-valves (10), the entrance for manually switching off valve (7) is connect with compressed air pipe (103), the outlet of check-valves (10) with it is resistance to
Grind the connection of threeway (5) horizontal segment entrance.
4. a kind of long range according to claim 3 becomes the anti-blocking making-up air device of absolute altitude ash conveying pipe, it is characterised in that：Institute
It is adjustable to state orifice plate (9) pore size.
5. a kind of long range according to claim 3 becomes the anti-blocking making-up air device of absolute altitude ash conveying pipe, it is characterised in that：Institute
State check-valves (10) be arranged in over long distances become absolute altitude ash conveying pipe ascent stage (101) peak/descending branch (104) minimum point it
On preceding tonifying Qi standpipe, highly higher than the second horizontal segment (102) ash conveying pipe.
6. a kind of long range according to claim 3 becomes the anti-blocking making-up air device of absolute altitude ash conveying pipe, it is characterised in that：Gas
Dynamic regulating valve (8) and pressure transmitter pressure difference are chain.
7. a kind of long range according to claim 1 or 2 becomes the anti-blocking making-up air device of absolute altitude ash conveying pipe, feature exists
In：The wear resistant three-way (5) and ash conveying pipe using flanged joint, the flange of wear resistant three-way (5) horizontal segment entrance with it is anti-blocking
The tonifying Qi pipeline of tonifying Qi valve group (6) is welded to connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721652239.2U CN207539628U (en) | 2017-12-01 | 2017-12-01 | Become the anti-blocking making-up air device of absolute altitude ash conveying pipe over long distances |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721652239.2U CN207539628U (en) | 2017-12-01 | 2017-12-01 | Become the anti-blocking making-up air device of absolute altitude ash conveying pipe over long distances |
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| CN207539628U true CN207539628U (en) | 2018-06-26 |
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| CN201721652239.2U Active CN207539628U (en) | 2017-12-01 | 2017-12-01 | Become the anti-blocking making-up air device of absolute altitude ash conveying pipe over long distances |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107816635A (en) * | 2017-12-01 | 2018-03-20 | 中国电力工程顾问集团西北电力设计院有限公司 | Become the anti-blocking making-up air device of absolute altitude ash conveying pipe and anti-blocking supplementing method for air over long distances |
| CN112850168A (en) * | 2021-03-15 | 2021-05-28 | 成都瑞柯林工程技术有限公司 | Pneumatic conveying method for particulate matters |
-
2017
- 2017-12-01 CN CN201721652239.2U patent/CN207539628U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107816635A (en) * | 2017-12-01 | 2018-03-20 | 中国电力工程顾问集团西北电力设计院有限公司 | Become the anti-blocking making-up air device of absolute altitude ash conveying pipe and anti-blocking supplementing method for air over long distances |
| CN112850168A (en) * | 2021-03-15 | 2021-05-28 | 成都瑞柯林工程技术有限公司 | Pneumatic conveying method for particulate matters |
| CN112850168B (en) * | 2021-03-15 | 2023-10-24 | 成都瑞柯林工程技术有限公司 | Pneumatic conveying method for particulate matters |
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