CN113790777A - High material level deposition detection device of ash bucket - Google Patents
High material level deposition detection device of ash bucket Download PDFInfo
- Publication number
- CN113790777A CN113790777A CN202110926232.XA CN202110926232A CN113790777A CN 113790777 A CN113790777 A CN 113790777A CN 202110926232 A CN202110926232 A CN 202110926232A CN 113790777 A CN113790777 A CN 113790777A
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- Prior art keywords
- ash bucket
- material level
- sampling tube
- dust
- high material
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/14—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measurement of pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/027—Cleaning the internal surfaces; Removal of blockages
- B08B9/032—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing
- B08B9/0321—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing using pressurised, pulsating or purging fluid
- B08B9/0328—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing using pressurised, pulsating or purging fluid by purging the pipe with a gas or a mixture of gas and liquid
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a high material level dust accumulation detection device of an ash bucket, which comprises a sampling pipe, a pressure transmitter, an air blowing pipe and a purging air source, wherein the sampling pipe is arranged at the high material level position of the ash bucket, one end of the sampling pipe is communicated with the ash bucket, the other end of the sampling pipe is closed, the pressure transmitter is arranged on the sampling pipe and is used for detecting the air pressure in the sampling pipe, one end of the air blowing pipe is communicated with the sampling pipe, and the other end of the air blowing pipe is communicated with the purging air source. The invention belongs to the technical field of ash bucket material level detection, and aims to solve the problem of low accuracy of ash bucket material level detection in the prior art. The technical effects achieved are as follows: whether the dust accumulated in the dust hopper reaches a high material level or not can be accurately judged through the reading of the pressure transmitter, and the dust in the sampling tube can be conveniently and quickly cleaned through the arrangement of the air blowing tube and the air blowing source, so that the accuracy of the detection data of the pressure transmitter is ensured; the whole device has simple structure, low production and modification cost and convenient popularization and application.
Description
Technical Field
The invention relates to the technical field of ash bucket material level detection, in particular to a high material level ash deposition detection device of an ash bucket.
Background
The existing ash bucket material level is detected by a material level meter, and two material level meters are a radio frequency admittance material level meter and a passive nuclear material level meter. The radio frequency admittance material level meter is inserted, transmits signals after contacting with deposited dust, has tradition and universality, and greatly reduces the reliability due to dust hanging and bending after running for a period of time; the passive nuclear level indicator is adopted in recent years, the principle of energy detection and accumulation of accumulated dust is utilized, the reliability is higher than that of a radio frequency admittance level indicator, false alarm can occur when dust is hung on the wall of a dust hopper, the cost is more than ten thousand yuan, the improvement cost is very high for old units, particularly for the large number of the dust hoppers of the units, and meanwhile, the expected value of the solution measurement accuracy is not high. Therefore, a device capable of accurately detecting the level of the ash hopper is needed.
Disclosure of Invention
Therefore, the invention provides a high material level dust accumulation detection device of an ash bucket, which aims to solve the problem of low material level detection accuracy of the ash bucket in the prior art.
In order to achieve the above purpose, the invention provides the following technical scheme:
according to the first aspect of the invention, the high material level dust accumulation detection device of the ash bucket comprises a sampling pipe, a pressure transmitter, an air blowing pipe and a blowing gas source, wherein the sampling pipe is installed at the high material level position of the ash bucket, one end of the sampling pipe is communicated with the ash bucket, the other end of the sampling pipe is closed, the pressure transmitter is installed on the sampling pipe and is used for detecting the air pressure in the sampling pipe, one end of the air blowing pipe is communicated with the sampling pipe, and the other end of the air blowing pipe is communicated with the blowing gas source.
Furthermore, a valve is arranged on the air blowing pipe, and the valve is an electromagnetic valve.
Further, the pressure transmitter and the valve are connected with the controller.
Further, the alarm is further included and connected with the controller.
Furthermore, one end of the sampling tube, which is communicated with the ash bucket, is obliquely and downwards inserted into the ash bucket.
Further, the sampling tube and the horizontal direction included angle is 20 degrees to 60 degrees.
Furthermore, the ash bucket is installed at the bottom of flue gas pipeline, the ash bucket with flue gas pipeline intercommunication, the sampling tube is installed the ash bucket just to flue gas flow direction's in the flue gas pipeline one side.
Further, the purge gas source is a compressed gas tank or a gas pump.
Further, the purging medium adopted by the purging gas source is air.
Furthermore, one end of the sampling tube, which deviates from the ash bucket, is detachably connected with a sealing cover.
The invention has the following advantages: the sampling tube is arranged at the high material level of the ash bucket, one end of the sampling tube is communicated with the ash bucket, the other end of the sampling tube is closed, the pressure transmitter is arranged on the sampling tube, and in the using process, if the pressure reading of the pressure transmitter is changed from negative to zero, the fact that one end of the sampling tube communicated with the ash bucket is blocked by dust is shown, namely, the fact that the dust accumulated in the ash bucket reaches the high material level is shown, and whether the dust accumulated in the ash bucket reaches the high material level or not can be accurately judged; one end of the air blowing pipe is communicated with the sampling pipe, and the other end of the air blowing pipe is communicated with the blowing air source, so that dust in the sampling pipe can be conveniently and quickly blown and cleaned, and the accuracy of the pressure transmitter in detecting data is guaranteed; the whole device has simple structure, low production and modification cost and convenient popularization and application.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
The structures, ratios, sizes, and the like shown in the present specification are only used for matching with the contents disclosed in the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions that the present invention can be implemented, so that the present invention has no technical significance, and any structural modifications, changes in the ratio relationship, or adjustments of the sizes, without affecting the effects and the achievable by the present invention, should still fall within the range that the technical contents disclosed in the present invention can cover.
Fig. 1 is an overall schematic view of a high level ash deposition detection device of an ash hopper according to some embodiments of the present invention.
In the figure: 1. flue gas pipeline, 2, ash bucket, 3, sampling tube, 4, gas blow pipe, 5, valve, 6, pressure transmitter, 7, controller, 8, dust.
Detailed Description
The present invention is described in terms of particular embodiments, other advantages and features of the invention will become apparent to those skilled in the art from the following disclosure, and it is to be understood that the described embodiments are merely exemplary of the invention and that it is not intended to limit the invention to the particular embodiments disclosed. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, the high material level dust deposition detection device for an ash bucket in the first embodiment of the present invention includes a sampling tube 3, a pressure transmitter 6, an air blowing tube 4 and a purging air source, the sampling tube 3 is installed at the high material level of the ash bucket 2, one end of the sampling tube 3 is communicated with the ash bucket 2, the other end of the sampling tube 3 is closed, the pressure transmitter 6 is installed on the sampling tube 3, the pressure transmitter 6 is used for detecting the air pressure in the sampling tube 3, one end of the air blowing tube 4 is communicated with the sampling tube 3, and the other end of the air blowing tube 4 is communicated with the purging air source.
In the above embodiment, it should be noted that the material taking pipe 3 is connected with the ash bucket 2 by welding; when the sampling pipe 3 is communicated with the ash bucket 2, the air pressure in the sampling pipe 3 is the same as the air pressure in the ash bucket 2, and when the ash bucket 2 is not blocked, the air pressure in the ash bucket 2 is between-3 KPa and-4 KPa, and the accumulation amount of the dust 8 in the ash bucket 2 gradually increases to a high material level, one end of the sampling pipe 3 communicated with the ash bucket 2 is gradually blocked, the air pressure in the sampling pipe 3 gradually becomes 0KPa, and when the air pressure in the sampling pipe 3 is zero, the end of the sampling pipe 3 communicated with the ash bucket 2 is completely blocked, namely the accumulation amount of the dust 8 in the ash bucket 2 reaches the high material level correspondingly.
The technical effects achieved by the above embodiment are as follows: the sampling tube 3 is arranged at the high material level position of the ash bucket 2, one end of the sampling tube 3 is communicated with the ash bucket 2, the other end of the sampling tube 3 is closed, the pressure transmitter 6 is arranged on the sampling tube 3, and in the using process, if the pressure reading of the pressure transmitter 6 is changed from negative to zero, the fact that one end of the sampling tube 3 communicated with the ash bucket 2 is blocked by dust 8 is shown, namely the fact that the dust 8 accumulated in the ash bucket reaches the high material level, and whether the dust 8 accumulated in the ash bucket 2 reaches the high material level can be accurately judged; one end of the air blowing pipe 4 is communicated with the sampling pipe 3, and the other end of the air blowing pipe 4 is communicated with a blowing air source, so that dust 8 in the sampling pipe 3 can be blown and cleaned conveniently and rapidly, and the accuracy of the detection data of the pressure transmitter 6 is guaranteed; the whole device has simple structure, low production and modification cost and convenient popularization and application.
Optionally, as shown in fig. 1, in some embodiments, a valve 5 is disposed on the blowing pipe 4, and the valve 5 is an electromagnetic valve.
In the above optional embodiment, it should be noted that, in the use process, the purging air source and the valve 5 are periodically opened every 2 to 5 hours to purge the sampling tube 3, so as to prevent the inner wall of the sampling tube 3 from being ash-deposited or prevent the ash-deposited at the connection between the sampling tube 3 and the ash bucket 2 from causing inaccurate reading of the pressure transmitter 6, and meanwhile, according to the reading of the pressure transmitter 6 in the purging process, it can be determined whether the pressure transmitter 6 is in a normal state, and the specific determination mode is as follows: in the purging process, if the reading of the pressure transmitter 6 is greater than 0, it is indicated that the pressure transmitter 6 is in a normal state, otherwise, the pressure transmitter is in an abnormal state and needs to be subjected to troubleshooting.
The beneficial effects of the above alternative embodiment are: the air blowing pipe 4 is provided with a valve 5, and the purging operation can be conveniently controlled by opening and closing the valve 5.
Optionally, as shown in fig. 1, in some embodiments, a controller 7 is further included, and the valve 5 and the pressure transmitter 6 are connected to the controller 7.
In the above optional embodiment, it should be noted that the controller 7 is configured to control the opening and closing of the valve 5, and the valve 5 is periodically opened every 2 to 5 hours by the control valve 5 to clean the sampling tube 3; controller 5 is also used to read and process sensed data from pressure transmitter 6.
The beneficial effects of the above alternative embodiment are: through setting up controller 7, can realize automatic control and sweep the operation, whole device uses more conveniently.
Optionally, as shown in fig. 1, in some embodiments, an alarm is further included, and the alarm is connected to the controller 7.
In the above alternative embodiment, it should be noted that, in use, when the pressure transmitter 6 reads a value greater than-1 KPa, the controller activates the alarm, which sounds to indicate that the dust 8 accumulation in the dust hopper 2 has reached a level near the high level, and prompts the field personnel to confirm and process the dust in time.
The beneficial effects of the above alternative embodiment are: through setting up the siren, when the dust 8 accumulational volume in ash bucket 2 reaches near high material level, can in time indicate the field personnel to handle.
Alternatively, as shown in FIG. 1, in some embodiments, the end of the sampling tube 3 communicating with the ash bucket 2 is inserted obliquely downward into the ash bucket 2.
In the above alternative embodiment, it should be noted that the sampling tube 3 is at an angle of 20 ° to 60 ° to the horizontal.
Further, the sampling tube 3 has an angle of 20 °, 30 °, 40 °, 45 °, 50 °, or 60 ° with the horizontal direction.
The beneficial effects of the above alternative embodiment are: one end of the sampling tube 3 communicated with the ash bucket 2 is obliquely and downwards inserted into the ash bucket 2, the included angle between the sampling tube 3 and the horizontal direction is 20-60 degrees, the sampling tube 3 is obliquely and downwards arranged, and dust is not easy to deposit at the inner wall of the sampling tube 3 and the communicated part between the sampling tube 3 and the ash bucket 2 in the using process.
Alternatively, as shown in fig. 1, in some embodiments, the ash bucket 2 is installed at the bottom of the flue gas pipeline 1, the ash bucket 2 is communicated with the flue gas pipeline 1, and the sampling pipe 3 is installed at a side of the ash bucket 2 facing the flue gas flowing direction in the flue gas pipeline 1.
In the above alternative embodiment, it should be noted that the connection between the sampling tube 3 and the ash hopper 2 is aligned with the flow direction of the flue gas in the flue gas duct 1.
The beneficial effects of the above alternative embodiment are: the sampling tube 3 is installed in the ash bucket 2 and just faces the one side of flue gas flow direction in the flue gas pipeline 1, and the sample is representative, and the measured data is more accurate.
Optionally, as shown in fig. 1, in some embodiments, the purge gas source is a compressed gas tank or a gas pump.
In the above alternative embodiment, it should be noted that the purge medium used by the purge gas source is air.
The beneficial effects of the above alternative embodiment are: the blowing air source is a compressed air tank or an air pump, and the blowing medium adopted by the blowing air source is air, so that the method is easy to realize and low in blowing operation cost.
Alternatively, as shown in fig. 1, in some embodiments, the end of the sampling tube 3 facing away from the ash hopper 2 is provided with a detachably attached sealing cap.
In the alternative embodiment described above, it should be noted that the sealing cap is screwed onto the end of the sampling tube 3 facing away from the ash hopper 2.
The beneficial effects of the above alternative embodiment are: the one end that sampling tube 3 deviates from ash bucket 2 is equipped with detachable and is connected with sealed lid, dismantles sealed lid back, can be convenient examine the 3 internal conditions of sampling tube, and sealed lid dismantles simple to operate swiftly, the routine maintenance and the maintenance of being convenient for.
Although the invention has been described in detail above with reference to a general description and specific examples, it will be apparent to one skilled in the art that modifications or improvements may be made thereto based on the invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.
In the present specification, the terms "upper", "lower", "left", "right", "middle", and the like are used for clarity of description, and are not intended to limit the scope of the present invention, and changes or modifications in the relative relationship may be made without substantial changes in the technical content.
Claims (10)
1. The utility model provides a high material level deposition detection device of ash bucket, its characterized in that, includes sampling tube (3), pressure transmitter (6), gas blow pipe (4) and sweeps the air supply, the high material level department at ash bucket (2) is installed in sampling tube (3), the one end of sampling tube (3) with ash bucket (2) intercommunication, the other end of sampling tube (3) is the confined, install pressure transmitter (6) on sampling tube (3), pressure transmitter (6) are used for detecting atmospheric pressure in sampling tube (3), the one end of gas blow pipe (4) with sampling tube (3) intercommunication, the other end of gas blow pipe (4) with sweep the air supply intercommunication.
2. The high material level dust accumulation detection device of the dust hopper as claimed in claim 1, wherein a valve (5) is arranged on the air blowing pipe (4), and the valve (5) is an electromagnetic valve.
3. The high material level dust accumulation detection device of the dust hopper as claimed in claim 2, further comprising a controller (7), wherein the valve (5) and the pressure transmitter (6) are both connected with the controller (7).
4. A high level ash accumulation detecting device of an ash hopper according to claim 3, further comprising an alarm connected with the controller (7).
5. The high material level dust accumulation detection device of the dust hopper as claimed in claim 1, wherein one end of the sampling tube (3) communicated with the dust hopper (2) is obliquely inserted downwards into the dust hopper (2).
6. The ash bucket high level deposition detecting device of claim 5, wherein the angle between the sampling tube (3) and the horizontal direction is 20-60 °.
7. The high material level dust accumulation detection device of the ash bucket according to claim 1, wherein the ash bucket (2) is installed at the bottom of a flue gas pipeline (1), the ash bucket (2) is communicated with the flue gas pipeline (1), and the sampling tube (3) is installed at one side of the ash bucket (2) opposite to the flow direction of flue gas in the flue gas pipeline (1).
8. The high material level ash deposition detection device of the ash hopper as claimed in claim 1, wherein the purge gas source is a compressed gas tank or a gas pump.
9. The high level ash deposition detection device of the ash hopper as claimed in claim 1, wherein the purging medium adopted by the purging gas source is air.
10. The high material level dust accumulation detection device of the dust hopper as claimed in claim 1, wherein a detachable sealing cover is detachably connected to one end of the sampling tube (3) away from the dust hopper (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110926232.XA CN113790777A (en) | 2021-08-12 | 2021-08-12 | High material level deposition detection device of ash bucket |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110926232.XA CN113790777A (en) | 2021-08-12 | 2021-08-12 | High material level deposition detection device of ash bucket |
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| CN113790777A true CN113790777A (en) | 2021-12-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110926232.XA Pending CN113790777A (en) | 2021-08-12 | 2021-08-12 | High material level deposition detection device of ash bucket |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4527714A (en) * | 1983-02-18 | 1985-07-09 | White River Technologies, Inc. | Pressure responsive hopper level detector system |
| CN101920144A (en) * | 2010-08-30 | 2010-12-22 | 无锡市天虹环保工程有限公司 | Material-level detecting device of dust collector ash hopper |
| CN201776037U (en) * | 2010-08-30 | 2011-03-30 | 无锡市天虹环保工程有限公司 | Material level detector of dust hopper of deduster |
| CN109200798A (en) * | 2018-10-25 | 2019-01-15 | 南京龙源环保有限公司 | A kind of detection device and application method of semi-dry desulphurization dust collector ash hopper material position |
| CN213422314U (en) * | 2020-11-30 | 2021-06-11 | 山东国舜建设集团有限公司 | Detection apparatus for ash bucket material level |
-
2021
- 2021-08-12 CN CN202110926232.XA patent/CN113790777A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4527714A (en) * | 1983-02-18 | 1985-07-09 | White River Technologies, Inc. | Pressure responsive hopper level detector system |
| CN101920144A (en) * | 2010-08-30 | 2010-12-22 | 无锡市天虹环保工程有限公司 | Material-level detecting device of dust collector ash hopper |
| CN201776037U (en) * | 2010-08-30 | 2011-03-30 | 无锡市天虹环保工程有限公司 | Material level detector of dust hopper of deduster |
| CN109200798A (en) * | 2018-10-25 | 2019-01-15 | 南京龙源环保有限公司 | A kind of detection device and application method of semi-dry desulphurization dust collector ash hopper material position |
| CN213422314U (en) * | 2020-11-30 | 2021-06-11 | 山东国舜建设集团有限公司 | Detection apparatus for ash bucket material level |
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