CN210533803U - Ash dropping pipe sampling device - Google Patents
Ash dropping pipe sampling device Download PDFInfo
- Publication number
- CN210533803U CN210533803U CN201920790690.3U CN201920790690U CN210533803U CN 210533803 U CN210533803 U CN 210533803U CN 201920790690 U CN201920790690 U CN 201920790690U CN 210533803 U CN210533803 U CN 210533803U
- Authority
- CN
- China
- Prior art keywords
- ash
- pipe
- sampling
- inlet
- rain
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Sampling And Sample Adjustment (AREA)
Abstract
The utility model relates to a sampling device for a dust falling pipe, which comprises a dust taking pipe, a sampling barrel and a dust storage tank connected to the bottom of the sampling barrel, wherein the sampling barrel comprises a cylindrical body, a dust inlet pipe and an exhaust pipe, the top of the cylindrical body is provided with an exhaust port for connecting the exhaust pipe, and the outlet of the exhaust pipe is provided with a hemispherical rainproof hood; be equipped with on the lateral wall and be used for connecting into the ash inlet of ash pipe output, inside is equipped with and is used for dividing into the tube-shape body cross section into the ash blocking board in ash district and ash district, and the gas vent is in tube-shape body's ash district one side, and ash inlet is located ash district one side, and the input of entering ash pipe and the threaded connection who gets ash pipe and pass through the ball valve. Compared with the prior art, the utility model discloses a side is put into the ash to cooperation dust retainer can let and advance the ash more smooth-going, isolated external dust and humid air's interference, and increase the double-phase separation efficiency of gas-solid, guaranteed to get high efficiency, representativeness and the security of ash.
Description
Technical Field
The utility model belongs to the technical field of electric power and power engineering technique and specifically relates to a soot tube sampling device is related to.
Background
The performance test of the utility boiler is an important means for testing the performance of the boiler and improving the thermal efficiency of the boiler. At present, the thermal efficiency test of the boiler commonly adopts American ASME PTC4.1 standard and Chinese national standard GB 10184, and each thermal loss of the boiler is respectively calculated to obtain the thermal efficiency. The combustible content of the fly ash is an important parameter for calculating the heat loss (the heat loss caused by the unburned ash residue) of the incompletely combusted solid, and the sampling work for obtaining the fly ash is also an important link in a boiler performance test.
Fly ash sampling is generally divided into two categories: constant-speed sampling and fixed sampling by a grid method. The grid method constant-speed sampling method is a standard fly ash sampling method for ensuring fly ash to be representative, an equal-section division principle is adopted, the number of grid points can be determined according to factors such as the sectional area of a sampling flue, the test duration, the number of round sampling times and the like, sampling is carried out point by point in the whole test period, and the time of each sampling point is equal. The fly ash grid method constant-speed sampling method is suitable for performance acceptance tests with high precision requirements. However, the fly ash grid method constant-speed sampling method has problems in that the sampling time is long, the workload is large, and the sampling amount is small. In practice, it is difficult to maintain a stable load operation for a long time by the utility boiler under the influence of grid scheduling. In addition, power plants also desire to sample fly ash before, after, or during routine maintenance operations to enable assessment of boiler operating conditions. Thus, the fly ash fixed sampling has a practical requirement, namely, most boilers adopt fixed sampling devices, and continuous sampling is carried out continuously during sampling.
For the current fixed sampling method, the tester generally adopts two modes for convenience. One is to install cyclone separator in the tail flue of boiler, and the other is to use container to discharge ash directly at the outlet of sampling tube led out from ash dropping tube of dust remover. In the former method, the fly ash sampling is also unstable and sometimes has a large deviation, due to the influence of the flue negative pressure and the separation effect of the sampling point and the separation device. The latter method has been widely used because the ash falling from the dust collector can be more than 95% of the boiler ash, and the fly ash sampled according to this method has a high accuracy. However, this method also has certain disadvantages: because the ash discharged by the dust remover is pneumatically conveyed, the flow velocity of the flue gas is high during ash discharge, and the flue gas impacts an unclosed container, so that a large amount of fly ash splashes around, the surrounding environment is polluted, and even worse, the flue gas and the fly ash with high temperature can scald testers. In addition, when the valve is sealed and has a problem, the fly ash sampling method is easy to cause ash leakage, and if the phenomenon is not found in time, the safe and civilized production of nearby areas can be seriously influenced. Finally, the sampling pipeline exposed outside the flue by the method generally does not adopt a heat preservation measure, and the sampling pipeline is blocked due to the occurrence of ash accumulation and hardening caused by moisture condensation and the like. Therefore, it is very important to design an environment-friendly fly ash sampling device to take ash from the ash dropping pipe of the dust collector.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an ash falling pipe sampling device for overcoming the defects of the prior art.
The purpose of the utility model can be realized through the following technical scheme:
the utility model provides a ash falling pipe sampling device, is including getting ash pipe, sampling bucket and connecting in the ash storage tank of sampling bucket bottom, the sampling bucket includes the tube-shape body, advances grey pipe and blast pipe, the top of tube-shape body is equipped with the gas vent that is used for connecting the blast pipe, is equipped with on the lateral wall to be used for connecting into the ash inlet of ash pipe output, and inside is equipped with the ash blocking board that is used for divideing into grey district and play grey district with the tube-shape body cross section, the gas vent is in the play grey district one side of tube-shape body, advance grey mouthful and be located into grey district one side, the input that advances grey pipe with get ash union coupling, ash storage tank sets up in the below of sampling bucket, and the bottom of sampling bucket links to each other through threaded connection with ash storage tank.
The ash inlet pipe is obliquely arranged, an included angle between the ash inlet pipe and the upper part of the cylindrical body is an acute angle, and the distance between the lower edge of the ash inlet and the lower edge of the ash baffle is at least 30 mm along the intersection point of the extension line of the ash inlet pipe and the ash baffle.
The area of the ash inlet area is smaller than that of the ash outlet area.
And a ball valve is arranged in the ash taking pipe.
The central lines of the exhaust pipe and the ash inlet pipe are arranged on the same longitudinal section of the cylindrical body, and the longitudinal section is perpendicular to the ash baffle.
The blast pipe is the arc pipe, and the output is equipped with rain-proof hood, rain-proof hood equipartition has a plurality of fixed pothooks in the circumferencial direction, rain-proof hood cup joints behind the output of blast pipe, by the pothook is consolidated.
The rain-proof hood comprises a metal shutter, a metal filter screen and a filter sponge, wherein the metal shutter is used for separating fly ash and preventing foreign matters such as external rainwater, dust and the like from flowing backwards, and the filter sponge, the metal filter screen and the metal shutter are sequentially distributed along the exhaust motion direction.
The blades of the metal shutter are arranged in an inclined mode at an angle of 45 degrees, and the height of the metal shutter is gradually reduced along the exhaust movement direction.
Rain-proof hood still includes rain-proof cover, and this rain-proof cover is located the metal shutter outside, and wraps up the first half of blast pipe export at least.
The upper part of the cylindrical body is of a cylindrical structure, the lower part of the cylindrical body is of a funnel structure, and the ash inlet is positioned on the cylindrical structure.
Compared with the prior art, the utility model discloses following beneficial effect has:
1) the side ash feeding is adopted, and the ash blocking plate is matched, so that the ash feeding is smoother, the interference of external dust and wet air is isolated, the separation efficiency of gas-solid phases is increased, and the high efficiency, representativeness and safety of ash taking are ensured.
2) The ash inlet pipe is obliquely arranged, an included angle between the ash inlet pipe and the upper portion of the cylindrical body is an acute angle, the ash inlet efficiency can be increased, the ash blocking plate is lower than the lower edge of the ash inlet airflow, and the full ash blocking effect can be achieved.
3) Can prevent effectively that the rainwater from wafting into, can install polyurethane additional between spherical rain-proof hood and the afterbody cup joints the department and filter the sponge for further block unseparated flying dust, and prevent foreign matter refluence such as outside rainwater and dust and go into sampling device, influence the precision and the representativeness of sample.
4) Practice proves, adopts the utility model discloses the flying dust is obtained in the sample, easy operation not only, and the sample volume is big, and sample environment friendly has guaranteed experimental reliability and accuracy moreover.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a front view of the rain-proof hood of the present invention;
FIG. 3 is a schematic sectional view of the rain hat of the present invention;
wherein: 1. the device comprises a sampling barrel, 2, an ash storage tank, 3, an ash taking pipe, 4, a cylindrical body, 5, an ash inlet pipe, 6, an exhaust pipe, 7, an ash baffle, 8, a rainproof hood, 81, a drain hole, 82, a rainproof cover, 83, a metal shutter, 84, a metal filter screen, 85, filter sponge, 86 and a clamping hook.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. The embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the scope of the present invention is not limited to the following embodiments.
The utility model provides a soot tube sampling device, as shown in figure 1, including getting ash pipe 3, sampling barrel 1 and connect in the ash storage tank 2 of sampling barrel 1 bottom, sampling barrel 1's bottom is linked together through threaded connection with ash storage tank 2's top, sampling barrel 1 includes tube-shape body 4, advance ash pipe 5 and blast pipe 6, tube-shape body 4's top is equipped with the gas vent that is used for connecting blast pipe 6, be equipped with the ash inlet that is used for connecting into ash pipe 5 output on the lateral wall, inside is equipped with and is used for dividing into ash area and the ash baffle 7 of ash area with tube-shape body 4 cross section, the gas vent is in tube-shape body 4's ash area one side, ash inlet is located ash area one side, the input of ash pipe 5 passes through threaded connection with ash taking pipe 3. In this embodiment, the ash inlet pipe 5 and the ash inlet are fixed by welding, and the exhaust pipe 6 and the exhaust port are fixed by welding. The central lines of the exhaust pipe and the ash inlet pipe are arranged on the same longitudinal section of the cylindrical body, and the longitudinal section is vertical to the ash baffle 7.
The ash inlet pipe 5 is obliquely arranged, an included angle between the ash inlet pipe 5 and the upper part of the cylindrical body 4 is an acute angle, and the distance between the lower edge of the ash inlet and the lower edge of the ash baffle 7 along the intersection point of the extension line of the ash inlet pipe 5 and the ash baffle 7 is at least 30 mm.
The area of the ash inlet area is smaller than that of the ash outlet area.
A ball valve is arranged in the ash taking pipe 3.
The exhaust pipe 6 is an arc-shaped pipe, the output end of the exhaust pipe is provided with a rain-proof hood 8, and the spherical rain-proof hood 8 seals the circular outlet for further blocking the fly ash which is not separated and preventing external rainwater and foreign matters from flowing back into the sampling device. As shown in fig. 2 and 3, a plurality of fixing hooks 86 are uniformly distributed on the rain-proof hood 8 in the circumferential direction, and the rain-proof hood 8 is sleeved on the output end of the exhaust pipe 6 and then is reinforced by the hooks 86.
The rain-proof hood 8 comprises a metal shutter 83 for separating fly ash, a metal filter screen 84 and a filter sponge 85, wherein the filter sponge 85, the metal filter screen 84 and the metal shutter 83 are sequentially distributed along the exhaust movement direction. The filter sponge 85 is made of polyurethane, and is used for further blocking the fly ash which is not separated, and preventing foreign matters such as external rainwater and dust from flowing back to the sampling device, so that the sampling precision and representativeness are influenced.
The blades of the metal louver 83 are arranged in an inclined manner at an angle of 45 degrees, and the height of the metal louver is gradually reduced along the exhaust movement direction, so that rainwater can be effectively prevented from drifting in.
The bottom of the outlet of the rain-proof hood 8 is provided with a drain hole 81.
Rain-proof hood 8 still includes rain-proof cover 82, and this rain-proof cover 82 is located the metal shutter 83 outside, and wraps up the upper half of blast pipe 6 export at least.
The upper part of the cylindrical body 4 is of a cylindrical structure, the lower part of the cylindrical body is of a funnel structure, the material is stainless steel, and the ash inlet is positioned on the cylindrical structure. The ash storage tank 2 is of a barrel-shaped structure and is made of stainless steel.
The internal structure of the device is the key place for separating the fly ash, the dust baffle 7 is a rectangular flat plate, and the spherical rain-proof hood 8 and the filter sponge 85 arranged at the outlet of the exhaust pipe 6 are also beneficial supplements for separating the fly ash.
The utility model discloses the working process is as follows: before sampling, the ash storage tank 2 is screwed down, and ash stored in the sampling barrel 1 and the ash storage tank 2 is eliminated; opening the ball valve to eliminate the accumulated dust in the dust taking pipe 3; the rain-proof hood 8 is taken off, and the filter sponge 85 is cleaned or replaced according to the situation. When sampling, the sampling barrel 1 is butted with the sampling tube 3, the ball valve is opened, the flue gas carrying a large amount of ash content flows into the sampling barrel 1, firstly, the flue gas collides with the ash baffle 7, and a large amount of fly ash is separated and falls into the ash storage tank 2; because the pressure of the flue gas flow is higher, a small amount of fly ash can be carried by the gas flow in the process of being discharged into the atmosphere through the exhaust pipe 6, the flue gas flow carrying a small amount of fly ash is further separated by the filter sponge 85, finally, the last separation is realized by the metal filter screen 84 and the metal shutter 83 at the outlet of the exhaust pipe, and the flue gas carrying a small amount of ash particles is discharged into the atmosphere. After the sampling process is finished, the surface of the sampling barrel can be knocked by a hammer, and the fly ash remained on the inner wall and the baffle is shaken down to the ash storage tank 2.
Finally, it should be noted that, although the preferred embodiments of the present invention have been described with reference to the accompanying drawings, the scope of the present invention is not limited thereto, and it should be noted that various modifications and changes that can be made without inventive changes by those skilled in the art are also within the scope of the present invention.
Claims (10)
1. The utility model provides a ash falling pipe sampling device, is including getting ash pipe (3), sampling bucket (1) and connecting in ash storage tank (2) of sampling bucket (1) bottom, a serial communication port, sampling bucket (1) includes tube-shape body (4), advances ash pipe (5) and blast pipe (6), the top of tube-shape body (4) is equipped with the gas vent that is used for connecting blast pipe (6), is equipped with on the lateral wall to be used for connecting into the ash inlet of ash pipe (5) output, and inside is equipped with and is used for divideing into ash area and ash-out district's ash blocking board (7) with tube-shape body (4) cross section, the gas vent is in tube-shape body's (4) ash-out district one side, it is located into ash-out district one side to advance the ash inlet, the input of advancing ash pipe (5) with get ash pipe (3) and.
2. An ash falling pipe sampling device according to claim 1, characterized in that the ash inlet pipe (5) is arranged obliquely, the included angle between the ash inlet pipe (5) and the upper part of the cylindrical body (4) is an acute angle, and the distance from the lower edge of the ash inlet to the lower edge of the ash baffle plate (7) is at least 30 mm along the intersection point of the extension line of the ash inlet pipe (5) and the ash baffle plate (7).
3. An ash pipe sampling apparatus according to claim 1 wherein the area of the ash inlet region is less than the area of the ash outlet region.
4. An ash pipe sampling device according to claim 1, characterized in that a ball valve is arranged in the ash pipe (3).
5. An ash drop tube sampling apparatus according to claim 1, wherein: the central lines of the exhaust pipe (6) and the ash inlet pipe (5) are arranged on the same longitudinal section of the cylindrical body (4), and the longitudinal section is vertical to the ash baffle (7).
6. An ash falling pipe sampling device according to claim 1, wherein the exhaust pipe (6) is an arc pipe, and the output end is provided with a rain-proof hood (8), the rain-proof hood (8) is evenly provided with a plurality of fixing hooks (86) in the circumferential direction, and the rain-proof hood (8) is sleeved on the output end of the exhaust pipe (6) and then is reinforced by the hooks (86).
7. A dust falling pipe sampling device according to claim 6, wherein the rain-proof hood (8) comprises a metal louver (83), a metal filter screen (84) and a filter sponge (85) for separating fly ash and preventing foreign matters such as external rainwater and dust from flowing backwards, and the filter sponge (85), the metal filter screen (84) and the metal louver (83) are sequentially distributed along the exhaust moving direction.
8. An ash pipe sampling device according to claim 7, characterized in that the blades of the metal louver (83) are arranged inclined at 45 ° and gradually decrease in height in the exhaust gas movement direction.
9. An ash pipe sampling device according to claim 7, wherein the rain hood (8) further comprises a rain hood (82), and the rain hood (82) is located outside the metal louver (83) and wraps at least the upper half of the outlet of the exhaust pipe (6).
10. An ash pipe sampling device according to claim 1, characterized in that the upper part of the cylindrical body (4) is of a cylindrical structure, the lower part is of a funnel structure, and the ash inlet is positioned on the cylindrical structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920790690.3U CN210533803U (en) | 2019-05-29 | 2019-05-29 | Ash dropping pipe sampling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920790690.3U CN210533803U (en) | 2019-05-29 | 2019-05-29 | Ash dropping pipe sampling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210533803U true CN210533803U (en) | 2020-05-15 |
Family
ID=70594013
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920790690.3U Active CN210533803U (en) | 2019-05-29 | 2019-05-29 | Ash dropping pipe sampling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210533803U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111595714A (en) * | 2020-05-29 | 2020-08-28 | 国网山东省电力公司电力科学研究院 | Test device and method for testing dirt adsorption performance of coating |
| WO2024098548A1 (en) * | 2022-11-11 | 2024-05-16 | 哈尔滨工程大学 | Sand and dust collection apparatus and gas sampling system |
-
2019
- 2019-05-29 CN CN201920790690.3U patent/CN210533803U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111595714A (en) * | 2020-05-29 | 2020-08-28 | 国网山东省电力公司电力科学研究院 | Test device and method for testing dirt adsorption performance of coating |
| WO2024098548A1 (en) * | 2022-11-11 | 2024-05-16 | 哈尔滨工程大学 | Sand and dust collection apparatus and gas sampling system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206746173U (en) | A kind of workshop dust collector | |
| CN210533803U (en) | Ash dropping pipe sampling device | |
| CN208742128U (en) | A kind of ash removing equipment and intake stack | |
| CN210719854U (en) | Combined type ash falling pipe sampling device | |
| CN211651923U (en) | Anti-blocking sampler for circulating fluidized bed boiler | |
| CN106248436A (en) | Wholegrain footpath on-line period device | |
| CN211877532U (en) | Self-pumping type multipoint fly ash constant-speed sampling device | |
| CN206161394U (en) | Flying ash sampling equipment | |
| CN203719956U (en) | Sealed flying-ash sampling device | |
| CN207102155U (en) | A kind of impulse bag type dust collector with cloth bag connector protective case | |
| CN113009089B (en) | Waste incineration power generation boiler smoke pollutants monitoring devices | |
| CN205739056U (en) | A kind of streamlined coal spout | |
| CN201493012U (en) | Special cloth bag dust remover for ferrosilicon furnace | |
| CN210037347U (en) | Active coke particle and regeneration gas separation pressure sampling device | |
| CN211426155U (en) | Denitration catalyst abrasion strength detection device | |
| CN204188415U (en) | A kind of flue gas fly ash sampling device | |
| CN211148691U (en) | Modularized multi-point wind speed and wind measuring device | |
| CN209295167U (en) | A kind of smoke discharging device | |
| CN208553578U (en) | A kind of spray tower bag-type dust removal system | |
| CN206184189U (en) | Electric automated dust removal device | |
| CN111994252A (en) | Exhaust discharge pipe capable of reducing blockage and working method thereof | |
| CN204027879U (en) | Portable fly ash sampling device | |
| CN210936270U (en) | Anti-blocking device of gas analyzer | |
| CN217483916U (en) | Dust collector ash bucket fixing and sampling device | |
| CN215910188U (en) | Fly ash sampling device of Russian boiler self-balancing pressure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |