CN205079965U - Buggy sample seal receptacle and have sampling device and measuring device of this seal receptacle - Google Patents
Buggy sample seal receptacle and have sampling device and measuring device of this seal receptacle Download PDFInfo
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- CN205079965U CN205079965U CN201520743530.5U CN201520743530U CN205079965U CN 205079965 U CN205079965 U CN 205079965U CN 201520743530 U CN201520743530 U CN 201520743530U CN 205079965 U CN205079965 U CN 205079965U
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- ball valve
- base
- rotation set
- packing holder
- sampling
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- 238000005070 sampling Methods 0.000 title claims abstract description 71
- 238000007789 sealing Methods 0.000 claims abstract description 32
- 238000012856 packing Methods 0.000 claims description 37
- 239000002817 coal dust Substances 0.000 claims description 34
- 238000005259 measurement Methods 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 5
- 239000000741 silica gel Substances 0.000 claims description 5
- 229910002027 silica gel Inorganic materials 0.000 claims description 5
- 239000000843 powder Substances 0.000 abstract description 31
- 239000000203 mixture Substances 0.000 abstract description 8
- 241000755266 Kathetostoma giganteum Species 0.000 description 8
- 239000003245 coal Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000005619 thermoelectricity Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
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- Sampling And Sample Adjustment (AREA)
Abstract
The utility model relates to a buggy sample seal receptacle and have sampling device and measuring device of this seal receptacle. Sample seat part is main including a base, the base pass through the screw vice with ball valve be airtight connection, the ball valve pass through the screw vice with sealed ring support be airtight connection, sealed ring support pass through the screw vice with revolve cover be airtight connection, the sealing washer is revolved the cover and is pushed in revolving between cover top and the sealed ring support, wherein, base, ball valve, sealed ring support and revolve the through -hole that the cover all has the coaxial line. The utility model provides a sample seal receptacle has a good leakproofness, can with the crew cut sampling gun with the back pipe cooperation use, do not need compressed air in the use, can also prevent when guaranteeing accurate measuring result that wind powder mixture from revealing that to endanger the staff healthy.
Description
Technical field
The utility model relates to thermoelectricity technology relevant device field, specifically, relates to sampler and measurement mechanism that a kind of coal dust samples sealing socket and has sealing seat.
Background technology
For the fuel-burning power plant adopting unit pulverized-coal system, fineness of pulverized coal and primary air velocity are the important indicators affecting pulverized coal firing boiler safety and economic operation, need periodic detection.Expect the ducted fineness of pulverized coal of primary air piping and primary air velocity, need to carry out coal dust sampling with coal dust sampling gun, carry out primary air speed measuring simultaneously.
Elbow type coal dust sampling gun is the ideal device carrying out coal dust sampling, and pitot tube is the standard set-up carrying out primary air speed measuring.In addition, that is used widely at the scene also has Flat-head type coal-powder sampling gun and backing tube primary air speed measuring device.
Flow media during hot operation in primary air piping is wind powder mixture, and pressure is 1 ~ 2kPa about.When coal dust sampling gun or pitot tube stretch in First air pipeline, if do not take seal approach, can there is leakage of pulverized coal in the base place that coal dust sampling gun or pitot tube stretch into pipeline, and personnel are healthy in harm sampling, also pollute site environment.So when sampling, general on-the-spot employing is with compressed-air actuated sampling sealing socket, and effect is fine.
But be not suitable for Flat-head type coal-powder sampling gun and carry out with compressed-air actuated sampling sealing socket the occasion that coal dust sampling or backing tube measure primary air velocity.Its reason is:
When carrying out coal dust sampling with Flat-head type coal-powder sampling gun or carrying out primary air speed measuring with backing tube, if still adopt the compressed-air actuated sampling sealing socket of band, from sampling sealing socket inject primary air piping pressurized air can to coal dust sampling or primary air speed measuring produce interference, cause coal dust sample or primary air speed measuring inaccurate.
When carrying out coal dust sampling with elbow type coal dust sampling gun or carry out primary air speed measuring with pitot tube, because measuring position and sampling sealing socket lay respectively at the upstream and downstream of First air, the pressurized air spraying into primary air piping can not have an impact to measurement.
Therefore how to design a kind of sealing socket of brand new, can with Flat-head type coal-powder sampling gun and backing tube suitable, completes on-the-spot sampling and measure related work, and measurement result is substantially interference-free, is the problem that those skilled in the art need solution badly.
Utility model content
The purpose of this utility model is for overcoming above-mentioned the deficiencies in the prior art, provides a kind of coal dust sampling sealing socket.Sealing socket provided by the utility model, does not need pressurized air still can prevent wind powder airflow leaks, and effectively can ensure that measurement data accurately and reliably in sampling with measuring process.
In order to reach above-mentioned purpose, the utility model adopts following technical scheme:
A kind of coal dust sampling sealing socket, comprise base, base by thread pair is connected with ball valve is airtight, and ball valve is connected by screw thread pair and packing holder are airtight, and packing holder is connected by screw thread pair and rotation set are airtight;
O-ring seal is squeezed between rotation set top and packing holder by rotation set;
Wherein, described base, ball valve, packing holder and rotation set all have the through hole of coaxial line.
Preferably, described base, ball valve, packing holder are identical with the through-hole diameter on rotation set.
Preferably, described O-ring seal is silica gel material.
The utility model is while providing sealing socket, additionally provide a kind of sampler, this sampler comprises tack sampling gun, tack sampling gun is through the through hole on base, ball valve, packing holder and the rotation set in above-mentioned coal dust sampling sealing socket, the head of tack sampling gun protrudes from described base, and the afterbody of tack sampling gun protrudes from described rotation set;
O-ring seal is by the gap seals between tack sampling gun and packing holder.
As better scheme, the utility model additionally provides a kind of measurement mechanism, measurement mechanism comprises backing tube, backing tube is through the through hole on base, ball valve, packing holder and the rotation set in above-mentioned coal dust sampling sealing socket, the head of backing tube protrudes from described base, and the afterbody of backing tube protrudes from described rotation set;
O-ring seal is by the gap seals between backing tube and packing holder.
The beneficial effects of the utility model are:
(1) rotation set screws to packing holder direction, the compacted distortion of O-ring seal, be close on Flat-head type coal-powder sampling gun or backing tube body of a gun right cylinder, guarantee that the wind powder mixture in powder feeding pipes can not spill from the gap between sampling packing holder and Flat-head type coal-powder sampling gun or backing tube body of a gun right cylinder, ensure that staff's is healthy, and prevent environment contaminated.
(2) do not need in sampling process to use pressurized air, and then avoid external disturbance, the effective accuracy ensureing sampling result.
Accompanying drawing explanation
Fig. 1 is the structural representation of coal dust sampling sealing socket in the utility model;
Fig. 2 be have in the utility model coal dust sampling sealing socket the structural representation of sampler;
Fig. 3 be have in the utility model coal dust sampling sealing socket the structural representation of measurement mechanism;
In figure: 1, powder feeding pipes, 2, ball valve, 3, packing holder, 4, rotation set, 5, tack sampling gun, 6, O-ring seal, 7, base, 8, backing tube;
Arrow direction is the direction of motion of wind powder mixture.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in detail.
Embodiment 1: a kind of coal dust sampling sealing socket, its structure as shown in Figure 1: draw together base 1, base 1 is connected with ball valve 2 is airtight by screw thread pair, and ball valve 2 is connected with packing holder 3 is airtight by screw thread pair, and packing holder 3 is connected with rotation set 4 is airtight by screw thread pair;
O-ring seal 6 is squeezed between rotation set 4 top and packing holder 3 by rotation set 4;
Wherein, described base 7, ball valve 2, packing holder 3 and rotation set 4 all have the through hole of coaxial line, and as the scheme of the best, all through-hole diameters are all identical.
According to not being both application places, O-ring seal 6 can be silica gel material, also can be quality of rubber materials.
Ball valve 2 can select model to be the ball valve of DN40.
Embodiment 2: a kind of sampler with coal dust sampling sealing socket, its structure is as shown in Figure 2: draw together base 1, base 1 is connected with ball valve 2 is airtight by screw thread pair, and ball valve 2 is connected with packing holder 3 is airtight by screw thread pair, and packing holder 3 is connected with rotation set 4 is airtight by screw thread pair;
O-ring seal 6 is squeezed between rotation set 4 top and packing holder 3 by rotation set 4;
Wherein, described base 7, ball valve 2, packing holder 3 and rotation set 4 all have the through hole of coaxial line, and as the scheme of the best, all through-hole diameters are all identical.
According to not being both application places, O-ring seal 6 can be silica gel material, also can be quality of rubber materials.
In sampler, the part of sampling is tack sampling gun 5, and tack sampling gun 5 is through the through hole on base 7, ball valve 2, packing holder and rotation set 4.
Under application state, the airtight outside being welded in powder feeding pipes 1 of base 7, the head of tack sampling gun 5 protrudes from described base 7, extend into the inside of powder feeding pipes 1, and the afterbody of tack sampling gun 5 protrudes from described rotation set 4; O-ring seal 6, by the gap seals between tack sampling gun 5 and packing holder 3, prevents wind powder mixture from revealing.
Principle of work and the process of the present embodiment are as follows:
Assembled by sealing socket, then base 7 is welded on the correct position of fuel-burning power plant powder feeding pipes 1.Flat-head type coal-powder sampling gun 5 is inserted through hole, until the spheroid of ball valve 2 is encountered in coal dust sampling gun front end, now opens D ball valve 2, fast coal dust sampling gun front end is extend in powder feeding pipes 1.Then rotation set 4 is screwed inwards, the compacted distortion of O-ring seal 6, be close on coal dust sampling gun, guarantee that the wind powder mixture in powder feeding pipes 1 can not spill from the gap between sealing socket and Flat-head type coal-powder sampling gun, now just relievedly can carry out correlation test work.
After off-test, outwards suitably unscrewed by rotation set 4, outwards extracted by coal dust sampling gun, when the spheroid of ball valve 2 is exited in coal dust sampling gun front end, quick closedown ball valve, does not allow wind powder air-flow outwards spray.
Embodiment 3: a kind of measurement mechanism with coal dust sampling sealing socket, its structure is as shown in Figure 2: draw together base 1, base 1 is connected with ball valve 2 is airtight by screw thread pair, and ball valve 2 is connected with packing holder 3 is airtight by screw thread pair, and packing holder 3 is connected with rotation set 4 is airtight by screw thread pair;
O-ring seal 6 is squeezed between rotation set 4 top and packing holder 3 by rotation set 4;
Wherein, described base 7, ball valve 2, packing holder 3 and rotation set 4 all have the through hole of coaxial line, and as the scheme of the best, all through-hole diameters are all identical.
According to not being both application places, O-ring seal 6 can be silica gel material, also can be quality of rubber materials.
In measurement mechanism, the part of measurement is backing tube 8, and backing tube 8 is through the through hole on base 7, ball valve 2, packing holder and rotation set 4.
Under application state, the airtight outside being welded in powder feeding pipes 1 of base 7, the head of backing tube 8 protrudes from described base 7, extend into the inside of powder feeding pipes 1, and the afterbody of backing tube 8 protrudes from described rotation set 4; O-ring seal 6, by the gap seals between backing tube 8 and packing holder 3, prevents wind powder mixture from revealing.
Principle of work and the process of the present embodiment are as follows:
Assembled by sealing socket, then base 7 is welded on the correct position of fuel-burning power plant powder feeding pipes 1.Backing tube 8 is inserted through hole, until the spheroid of ball valve 2 is encountered in backing tube 8 front end, now opens D ball valve 2, fast backing tube 8 front end is extend in powder feeding pipes 1.Then screwed inwards by rotation set 4, the compacted distortion of O-ring seal 6, is close on backing tube 8, guarantees that the wind powder mixture in powder feeding pipes 1 can not spill from the gap between sealing socket and backing tube 8, now just relievedly can carry out correlation test work.
After off-test, outwards suitably unscrewed by rotation set 4, outwards extracted by backing tube 8, when the spheroid of ball valve 2 is exited in backing tube 8 front end, quick closedown ball valve, does not allow wind powder air-flow outwards spray.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the utility model.To be apparent for those skilled in the art to the multiple amendment of embodiment, General Principle as defined herein can when not departing from spirit or scope of the present utility model, realize in other embodiments, the part be not described in detail, for prior art, do not repeat at this.Therefore, the utility model can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and feature.
Claims (5)
1. a coal dust sampling sealing socket, is characterized in that, comprise base, and base by thread pair is connected with ball valve is airtight, and ball valve is connected by screw thread pair and packing holder are airtight, and packing holder is connected by screw thread pair and rotation set are airtight;
O-ring seal is squeezed between rotation set top and packing holder by rotation set;
Wherein, described base, ball valve, packing holder and rotation set all have the through hole of coaxial line.
2. coal dust sampling sealing socket according to claim 1, it is characterized in that, described base, ball valve, packing holder are identical with the through-hole diameter on rotation set.
3. coal dust sampling sealing socket according to claim 1, it is characterized in that, described O-ring seal is silica gel material.
4. a sampler, it is characterized in that, this sampler comprises tack sampling gun, tack sampling gun is through the through hole on base, ball valve, packing holder and the rotation set in the coal dust sampling sealing socket described in any one of claim 1-3, the head of tack sampling gun protrudes from described base, and the afterbody of tack sampling gun protrudes from described rotation set;
O-ring seal is by the gap seals between tack sampling gun and packing holder.
5. a measurement mechanism, it is characterized in that, this measurement mechanism comprises backing tube, backing tube is through the through hole on base, ball valve, packing holder and the rotation set in the coal dust sampling sealing socket described in any one of claim 1-3, the head of backing tube protrudes from described base, and the afterbody of backing tube protrudes from described rotation set;
O-ring seal is by the gap seals between backing tube and packing holder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520743530.5U CN205079965U (en) | 2015-09-23 | 2015-09-23 | Buggy sample seal receptacle and have sampling device and measuring device of this seal receptacle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520743530.5U CN205079965U (en) | 2015-09-23 | 2015-09-23 | Buggy sample seal receptacle and have sampling device and measuring device of this seal receptacle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205079965U true CN205079965U (en) | 2016-03-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520743530.5U Active CN205079965U (en) | 2015-09-23 | 2015-09-23 | Buggy sample seal receptacle and have sampling device and measuring device of this seal receptacle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205079965U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107576773A (en) * | 2017-09-19 | 2018-01-12 | 湖南科技大学 | Coal sample sampler and coal and gas prominent monitoring system and Forecasting Methodology |
| CN107907708A (en) * | 2017-12-22 | 2018-04-13 | 华润电力（贺州）有限公司 | A kind of wind powder flow rate measuring device applied to boiler |
| CN108375684A (en) * | 2018-02-07 | 2018-08-07 | 华电电力科学研究院有限公司 | The wind speed measuring device and its wind measurement method of a kind of thermal power plant's coal pulverizer outlet First air fast leveling |
| CN109696318A (en) * | 2018-03-16 | 2019-04-30 | 中电华创(苏州)电力技术研究有限公司 | Gaging hole suitable for multinomial boiler and subsidiary engine performance test is fixed temporarily sealing device |
| CN112083189A (en) * | 2020-07-17 | 2020-12-15 | 华电电力科学研究院有限公司 | Semi-embedded pipeline movable pitot tube wind speed measuring device and working method |
-
2015
- 2015-09-23 CN CN201520743530.5U patent/CN205079965U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107576773A (en) * | 2017-09-19 | 2018-01-12 | 湖南科技大学 | Coal sample sampler and coal and gas prominent monitoring system and Forecasting Methodology |
| CN107576773B (en) * | 2017-09-19 | 2019-11-05 | 湖南科技大学 | Coal sample sampler and coal and gas prominent monitoring system and prediction technique |
| CN107907708A (en) * | 2017-12-22 | 2018-04-13 | 华润电力（贺州）有限公司 | A kind of wind powder flow rate measuring device applied to boiler |
| CN108375684A (en) * | 2018-02-07 | 2018-08-07 | 华电电力科学研究院有限公司 | The wind speed measuring device and its wind measurement method of a kind of thermal power plant's coal pulverizer outlet First air fast leveling |
| CN109696318A (en) * | 2018-03-16 | 2019-04-30 | 中电华创(苏州)电力技术研究有限公司 | Gaging hole suitable for multinomial boiler and subsidiary engine performance test is fixed temporarily sealing device |
| CN112083189A (en) * | 2020-07-17 | 2020-12-15 | 华电电力科学研究院有限公司 | Semi-embedded pipeline movable pitot tube wind speed measuring device and working method |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |