CN210513512U - 9-point backrest type differential pressure measuring device for boiler - Google Patents
9-point backrest type differential pressure measuring device for boiler Download PDFInfo
- Publication number
- CN210513512U CN210513512U CN201921604385.7U CN201921604385U CN210513512U CN 210513512 U CN210513512 U CN 210513512U CN 201921604385 U CN201921604385 U CN 201921604385U CN 210513512 U CN210513512 U CN 210513512U
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- differential pressure
- pipe
- pressure
- static pressure
- ash removal
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Abstract
The utility model discloses a 9 o 'clock back formula differential pressure measuring device of boiler, this 9 o' clock back formula differential pressure measuring device of boiler includes: the tank comprises a tank body, wherein the top of the tank body is provided with an upper mounting flange and a lower mounting flange, and the upper mounting flange is fixedly connected with the lower mounting flange; the differential pressure measurement dynamic pressure pipe is vertically arranged in the tank body; the differential pressure measurement static pressure pipe is vertically arranged in the tank body and is arranged in parallel with the differential pressure measurement dynamic pressure pipe; the dynamic pressure ash removal rod is fixed in the differential pressure measurement dynamic pressure pipe; the static pressure ash removal rod is fixed in the differential pressure measurement static pressure pipe; the main dynamic pressure pipe is embedded in the dynamic pressure ash removal rod; the total static pressure pipe is embedded in the static pressure ash removal rod; one end of the movable pressure-inducing pipe is connected with the upper end part of the main dynamic pressure pipe; and one end of the static pressure guide pipe is connected with the upper end of the total static pressure pipe. The utility model provides a two big technological problems of stifled pipe and wearing and tearing, and realized simple to operate in step, the maintenance volume is little, and the precision is high.
Description
Technical Field
The utility model relates to an electric power is observed and controled, fluid measurement technical field, especially relates to a 9 little back formula differential pressure measuring devices of boiler.
Background
The air volume measuring device that electric power plant used in the state of the art used a lot of, wherein the flue before and after boiler denitration, coal dust pipe, the wind channel that contains high dust are because the measured pipeline ash content is big, or contain a large amount of buggy, the temperature is high, wear-resisting poor, generally all have the problem in the following aspect during the use: (1) the normal use of the device is affected due to serious pipe blockage caused by ash blockage; (2) data are inaccurate, so that normal use of the system is influenced; (3) the equipment with poor wear resistance has limited service life; (4) the efficiency of the overall replacement is also low.
The utility model discloses a 9 dot back formula differential pressure measuring device of boiler can effectively solve two big technological problems of stifled pipe and wearing and tearing through from deashing system and ceramic spraying technique, and has realized simple to operate in step, and the maintenance volume is little, and it is more convenient to change, and the pressure loss is little, and the precision is high, and output signal is more stable. The safe and stable operation of the boiler of the thermal power plant is provided.
The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information constitutes prior art already known to a person skilled in the art.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a 9 o 'clock back formula differential pressure measuring device of boiler, it can solve prior art's above-mentioned problem.
In order to achieve the above object, the utility model provides a 9 o 'clock back formula differential pressure measuring device of boiler, this 9 o' clock back formula differential pressure measuring device of boiler includes: the tank comprises a tank body, wherein the top of the tank body is provided with an upper mounting flange and a lower mounting flange, and the upper mounting flange is fixedly connected with the lower mounting flange; the differential pressure measurement dynamic pressure pipe is vertically arranged in the tank body; the differential pressure measurement static pressure pipe is vertically arranged in the tank body and is arranged in parallel with the differential pressure measurement dynamic pressure pipe; the dynamic pressure ash removal rod is fixed in the differential pressure measurement dynamic pressure pipe; the static pressure ash removal rod is fixed in the differential pressure measurement static pressure pipe; the main dynamic pressure pipe is embedded in the dynamic pressure ash removal rod; the total static pressure pipe is embedded in the static pressure ash removal rod; one end of the movable pressure-inducing pipe is connected with the upper end part of the main dynamic pressure pipe; one end of the static pressure pipe is connected with the upper end of the total static pressure pipe; wherein, the total dynamic pressure pipe and the total static pressure pipe are welded and fixed with the mounting upper flange into a whole.
In one or more embodiments, the other ends of the dynamic pressure guiding pipe and the static pressure guiding pipe are connected with a differential pressure transmitter to measure the average differential pressure of the cross section, the differential pressure is guided to the differential pressure transmitter, and then the wind speed value is obtained through temperature and pressure parameter compensation and mathematical operation processing.
In one or more embodiments, the upper mounting flange and the lower mounting flange are fixed by screws with gaskets in between, and the lower mounting flange is welded on the flue wall.
In one or more embodiments, the differential pressure measuring dynamic and static pressure tubes are coated with ceramic to form a wear resistant ceramic coating.
In one or more embodiments, dynamic pressure deashing pole and static pressure deashing pole weld respectively in differential pressure measurement dynamic pressure pipe and differential pressure measurement static pressure intraduct, dynamic pressure deashing pole and static pressure deashing pole adopt pendulum bob principle, interior string deashing pole goods of furniture for display rather than for use.
Compared with the prior art, according to the utility model discloses a 9 points of boiler back formula differential pressure measuring device has following beneficial effect: the dynamic pressure ash removing rod and the static pressure ash removing rod of the utility model adopt the pendulum bob principle, and the ash removing rod swinging part is hung in the pendulum bob, so that the anti-blocking element can work normally under different working conditions without external power and can not be blocked after long-term use; compared with the traditional type, the device has small volume, is more portable to install, and has more accurate measurement data; meanwhile, the ceramic spraying process is carried out on the original stainless steel surface, so that the wear resistance is greatly improved.
Drawings
Fig. 1 is a front view of a 9-point back-to-back differential pressure measuring device for a boiler according to an embodiment of the present invention.
Fig. 2 is a side view of a 9-point back-to-back differential pressure measuring device of a boiler according to an embodiment of the present invention.
Description of the main reference numerals:
1-tank body, 2-upper flange installation, 3-lower flange installation, 4-differential pressure measurement dynamic pressure pipe, 5-differential pressure measurement static pressure pipe, 6-dynamic pressure ash removal rod, 7-static pressure ash removal rod, 8-total dynamic pressure pipe, 9-total static pressure pipe, 10-dynamic pressure pipe, 11-static pressure pipe and 12-wear-resistant ceramic spraying layer.
Detailed Description
The following detailed description of the present invention is provided in conjunction with the accompanying drawings, but it should be understood that the scope of the present invention is not limited by the following detailed description.
Throughout the specification and claims, unless explicitly stated otherwise, the word "comprise", or variations such as "comprises" or "comprising", will be understood to imply the inclusion of a stated element or component but not the exclusion of any other element or component.
As shown in fig. 1 to 2, according to an embodiment of the present invention, a 9-point back-to-back differential pressure measuring device for a boiler, the 9-point back-to-back differential pressure measuring device for a boiler includes: the tank comprises a tank body 1, wherein the top of the tank body 1 is provided with an upper mounting flange 2 and a lower mounting flange 3, and the upper mounting flange 2 is fixedly connected with the lower mounting flange 3; a differential pressure measuring dynamic pressure tube 4 vertically arranged inside the tank body; a differential pressure measuring static pressure pipe 5 vertically disposed inside the tank body and arranged in parallel with the differential pressure measuring dynamic pressure pipe 4; a dynamic pressure ash removal rod 6 fixed inside the differential pressure measurement dynamic pressure tube 4; a static pressure ash removal rod 7 fixed inside the differential pressure measurement static pressure pipe 5; the general dynamic pressure pipe 8 is embedded in the dynamic pressure ash removal rod 6; the total static pressure pipe 9 is embedded in the static pressure ash removal rod 7; one end of the movable pressure guiding pipe 10 is connected with the upper end part of the total movable pressure pipe 8; one end of the static pressure guide pipe 11 is connected with the upper end part of the total static pressure pipe 9; wherein, the total dynamic pressure pipe 8 and the total static pressure pipe 9 are welded and fixed with the upper mounting flange 2 into a whole.
In one or more embodiments, the other ends of the dynamic pressure guiding pipe 10 and the static pressure guiding pipe 11 are connected with a differential pressure transmitter to measure the average differential pressure of the cross section, the differential pressure is guided to the differential pressure transmitter, and then the wind speed value is obtained through temperature and pressure parameter compensation and mathematical operation processing.
In one or more embodiments, the mounting upper flange 2 and the mounting lower flange 3 are fixed by screws with a gasket therebetween, and the mounting lower flange 3 is welded to the flue wall. The utility model discloses a measurement accuracy is effectively improved with hot temperature pressure compensation technique to cold state demarcation, and cross-section multipoint matrix measuring probe such as big wind channel adoption guarantees the high accuracy flow measurement under short straight tube section, the turbulent condition in flow field.
In one or more embodiments, the differential pressure measuring dynamic pressure tube 4 and the differential pressure measuring static pressure tube 5 are coated with ceramic to form a wear resistant ceramic coating 12, thereby significantly improving the wear resistance of the device. It is to be noted that the wear-resistant ceramic sprayed layer is made by the conventional process and material in the prior art.
In one or more embodiments, dynamic pressure deashing pole 6 and static pressure deashing pole 7 weld respectively inside differential pressure measurement dynamic pressure pipe 4 and differential pressure measurement static pressure pipe 5, and dynamic pressure deashing pole 6 and static pressure deashing pole 7 adopt the pendulum bob principle, and interior string deashing pole goods of furniture for display rather than for use to ensure that the anti-blocking component can both normally work under different operating modes, need not external power, long-term the use can not block up.
The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. It is not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain certain principles of the invention and its practical application to enable one skilled in the art to make and use various exemplary embodiments of the invention and various alternatives and modifications as are suited to the particular use contemplated. It is intended that the scope of the invention be defined by the claims and their equivalents.
Claims (5)
1. A 9-point back-to-back differential pressure measuring apparatus for a boiler, characterized in that the 9-point back-to-back differential pressure measuring apparatus for a boiler comprises:
the tank comprises a tank body, wherein the top of the tank body is provided with an upper mounting flange and a lower mounting flange, and the upper mounting flange is fixedly connected with the lower mounting flange;
a differential pressure measuring dynamic pressure tube vertically disposed inside the tank body;
a differential pressure measuring static pressure pipe vertically disposed inside the tank body and arranged in parallel with the differential pressure measuring dynamic pressure pipe;
the dynamic pressure ash removal rod is fixed in the differential pressure measurement dynamic pressure pipe;
the static pressure ash removal rod is fixed in the differential pressure measurement static pressure pipe;
the total dynamic pressure pipe is embedded in the dynamic pressure ash removal rod;
the total static pressure pipe is embedded in the static pressure ash removal rod;
one end of the movable pressure-inducing pipe is connected with the upper end part of the general dynamic pressure pipe; and
one end of the static pressure guide pipe is connected with the upper end of the total static pressure pipe;
wherein, the total dynamic pressure pipe and the total static pressure pipe are welded and fixed with the mounting upper flange into a whole.
2. The 9-point back-to-back type differential pressure measuring device of the boiler according to claim 1, wherein the other end of the dynamic pressure guiding tube and the static pressure guiding tube is connected with a differential pressure transmitter to measure the average differential pressure of the cross section, the differential pressure is guided to the differential pressure transmitter, and the wind speed value is obtained through temperature and pressure parameter compensation and mathematical operation.
3. The boiler 9-point back-to-back differential pressure measuring device according to claim 1, wherein the mounting upper flange and the mounting lower flange are fixed by screws with gaskets therebetween, and the mounting lower flange is welded to a flue wall.
4. The boiler 9-point back-to-back differential pressure measuring device according to claim 1, wherein the differential pressure measuring dynamic pressure tube and the differential pressure measuring static pressure tube are coated with ceramic to form a wear-resistant ceramic coating.
5. The boiler 9-point backrest-type differential pressure measuring device according to claim 1, wherein the dynamic pressure ash removal rod and the static pressure ash removal rod are welded inside the differential pressure measuring dynamic pressure pipe and the differential pressure measuring static pressure pipe respectively, and the dynamic pressure ash removal rod and the static pressure ash removal rod adopt a pendulum bob principle and are internally hung with ash removal rod swinging parts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921604385.7U CN210513512U (en) | 2019-09-25 | 2019-09-25 | 9-point backrest type differential pressure measuring device for boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921604385.7U CN210513512U (en) | 2019-09-25 | 2019-09-25 | 9-point backrest type differential pressure measuring device for boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210513512U true CN210513512U (en) | 2020-05-12 |
Family
ID=70571431
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921604385.7U Expired - Fee Related CN210513512U (en) | 2019-09-25 | 2019-09-25 | 9-point backrest type differential pressure measuring device for boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210513512U (en) |
-
2019
- 2019-09-25 CN CN201921604385.7U patent/CN210513512U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20200512 |