CN202676508U - Constant-speed sampling device for coal dust sampler - Google Patents
Constant-speed sampling device for coal dust sampler Download PDFInfo
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- CN202676508U CN202676508U CN 201220321126 CN201220321126U CN202676508U CN 202676508 U CN202676508 U CN 202676508U CN 201220321126 CN201220321126 CN 201220321126 CN 201220321126 U CN201220321126 U CN 201220321126U CN 202676508 U CN202676508 U CN 202676508U
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Abstract
The utility discloses a constant-speed sampling device for a coal dust sampler. The constant-speed sampling device comprises regulating valves, a pressure meter, a manual wheel, a cyclone separator, a sampling bottle, a compressed air pipe, an exhaust air discharging pipe, a propelling device, a sampling gun, manual valves and a compressed air inlet main valve, wherein two ends of the compressed air pipe are connected with two manual valves; one end of the exhaust air discharging pipe is connected with one of the manual valves, and the other end of the exhaust air discharging pipe is connected with the cyclone separator; the compressed air inlet main valve is arranged in the middle of the exhaust air discharging pipe; the pressure meter is connected between the exhaust air discharging pipe and the compressed air inlet main valve; the lower part of the cyclone separator is connected with the sampling bottle; the cyclone separator is also connected with one end of the sampling gun, and the other end of the sampling gun is connected with the other manual valve; one of the regulating valves is connected between the cyclone separator and the sampling gun; and the propelling device is connected with the manual wheel and the sampling gun. By the constant-speed sampling device for the coal dust sampler, regular, uniform and constant-speed sampling is realized when a direct-fired pulverizing system is in the positive pressure state.
Description
Technical field
The utility model relates to boiler test sampling technique field, relates in particular to a kind of coal powder sampler constant-speed sampling device.
Background technology
Fineness of pulverized coal is an index of power plant boiler strict control in service, also is Optimizing Combustion, the important parameter that improves Boiler Economical Operation.For making the qualified coal dust of boilers of power plants, obtain higher burning efficiency, boiler is moved under the state of safety, economy, must carry out periodic monitoring to fineness of pulverized coal.Bunker formula and direct-firing system in the middle of the pulverized coal preparation system that power plant uses can be divided into.For middle bunker formula pulverized coal preparation system, the coal dust sampling ratio is more convenient, can carry out periodic monitoring to coal dust, and unit pulverized-coal system is in barotropic state owing to system, and the coal dust sampling ratio is difficulty, generally is difficult to accomplish the isokinetic sampling.
Summary of the invention
The purpose of this utility model is to provide a kind of coal powder sampler constant-speed sampling device, it has regularly, evenly, isokinetic sampling's advantage.
The utility model is achieved like this, the coal powder sampler constant-speed sampling device, it comprises variable valve, tensimeter, manual pulley, cyclone separator, sampling jar, compression gas pipe, weary gas delivery pipe, propulsion plant, sampling gun, manually-operated gate and compressed gas air inlet main valve, the two ends that it is characterized in that compression gas pipe are connected on two manually-operated gates, be provided with two variable valve between the compression gas pipe two ends, an end of weary gas delivery pipe connects one of them manually-operated gate
,The other end connects cyclone separator, also be connected with two variable valve on the weary gas delivery pipe, weary gas delivery pipe middle part is provided with compressed gas air inlet main valve, be connected with tensimeter between weary gas delivery pipe and the compressed gas air inlet main valve, the cyclone separator bottom connects sampling jar, and cyclone separator also connects an end of sampling gun, the other end of sampling gun connects another manually-operated gate, also be connected with variable valve between cyclone separator and the sampling gun, propulsion plant connects manual pulley, and propulsion plant also connects sampling gun; Described sampling gun is the tack sampling.
Technique effect of the present utility model is: the utility model realized positive pressure direct blowing powder system regularly, evenly, isokinetic sampling's function, adopt simultaneously in pipeline sampling cross section according to waiting serial sampling of annulus area-method, make sampling convenient and easy; Regulate in real time compressed air pressure, the control sample rate is really realized the isokinetic sampling, and the coal dust sample of getting is true, accurate; Adopt pressurized air to carry out air suction sampling, the automatic blowing piping system has been avoided the obstruction of sampler before and after the sampling; Hermetically sealed integrated design, the girder steel framework, compact conformation, simple, maintenance workload is few.
Description of drawings
Fig. 1 is structural representation of the present utility model.
In the drawings, 1, variable valve 2, tensimeter 3, manual pulley 4, cyclone separator 5, sampling jar
6, compression gas pipe 7, weary gas delivery pipe 8, propulsion plant 9, sampling gun 10, manually-operated gate 11, compressed gas air inlet main valve.
Embodiment
As shown in Figure 1, the utility model is achieved like this, it comprises variable valve 1, tensimeter 2, manual pulley 3, cyclone separator 4, sampling jar 5, compression gas pipe 6, weary gas delivery pipe 7, propulsion plant 8, sampling gun 9, manually-operated gate 10 and compressed gas air inlet main valve 11, the two ends of compression gas pipe 6 are connected on two manually-operated gates 10, be provided with two variable valve 1 between compression gas pipe 6 two ends, an end of weary gas delivery pipe 7 connects one of them manually-operated gate 10
,The other end connects cyclone separator 4, also be connected with two variable valve 1 on the weary gas delivery pipe 7, weary gas delivery pipe 7 middle parts are provided with compressed gas air inlet main valve 11, be connected with tensimeter 2 between weary gas delivery pipe 7 and the compressed gas air inlet main valve 11, cyclone separator 4 bottoms connect sampling jar 5, cyclone separator 4 also connects an end of sampling gun 9, the other end of sampling gun 9 connects another manually-operated gate 10, also be connected with variable valve 1 between cyclone separator 4 and the sampling gun 9, propulsion plant 8 connects manual pulley 3, and propulsion plant 8 also connects sampling gun 9; Described sampling gun 9 is the tack sampling; In use, two manually-operated gates 10 link to each other with the pulverized coal channel that will measure, manual pulley 3 control propulsion plants 8, propulsion plant 8 drives the whole diameter that sampling gun 9 runs through pulverized coal channel sampling cross section, according to waiting annulus area-method to run continuous samples, measure in real time simultaneously the static pressure P1 of air-flow in the pulverized coal channel, the pressurized air that 11 controls of compressed gas air inlet main valve enter, tensimeter 2 is measured the static pressure P2 of sampling air-flow in the sampling gun, to P1, P2 compares, adjust compressed-air actuated pressure by compressed gas air inlet main valve 11 and variable valve 1, with guarantee in the coal pipe with sampling gun in differential static pressure about ± 10Pa, thereby realize the isokinetic sampling; After sampling gun 9 is obtained sample, be sent to cyclone separator 4, realize coal dust and burbling by cyclone separator 4, then sampling jar 5 is used for collecting coal dust, utilize pressurized air that piping system is purged in the sampling beginning and after finishing, guarantee that piping system is unimpeded.After sampling finishes, regain sampling gun 9, improve the serviceable life of sampling gun 9.
Claims (2)
1. coal powder sampler constant-speed sampling device, it comprises variable valve, tensimeter, manual pulley, cyclone separator, sampling jar, compression gas pipe, weary gas delivery pipe, propulsion plant, sampling gun, manually-operated gate and compressed gas air inlet main valve, the two ends that it is characterized in that compression gas pipe are connected on two manually-operated gates, be provided with two variable valve between the compression gas pipe two ends, an end of weary gas delivery pipe connects one of them manually-operated gate
,The other end connects cyclone separator, also be connected with two variable valve on the weary gas delivery pipe, weary gas delivery pipe middle part is provided with compressed gas air inlet main valve, be connected with tensimeter between weary gas delivery pipe and the compressed gas air inlet main valve, the cyclone separator bottom connects sampling jar, and cyclone separator also connects an end of sampling gun, the other end of sampling gun connects another manually-operated gate, also be connected with variable valve between cyclone separator and the sampling gun, propulsion plant connects manual pulley, and propulsion plant also connects sampling gun.
2. coal powder sampler constant-speed sampling device as claimed in claim 1 is characterized in that, described sampling gun is the tack sampling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220321126 CN202676508U (en) | 2012-07-05 | 2012-07-05 | Constant-speed sampling device for coal dust sampler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220321126 CN202676508U (en) | 2012-07-05 | 2012-07-05 | Constant-speed sampling device for coal dust sampler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202676508U true CN202676508U (en) | 2013-01-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220321126 Expired - Fee Related CN202676508U (en) | 2012-07-05 | 2012-07-05 | Constant-speed sampling device for coal dust sampler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202676508U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107664588A (en) * | 2017-11-07 | 2018-02-06 | 北京华清茵蓝科技有限公司 | Isokinetic sample of pulverized coal method and sampler |
-
2012
- 2012-07-05 CN CN 201220321126 patent/CN202676508U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107664588A (en) * | 2017-11-07 | 2018-02-06 | 北京华清茵蓝科技有限公司 | Isokinetic sample of pulverized coal method and sampler |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130116 Termination date: 20180705 |