CN214309258U - U-shaped differential pressure gauge for ammonia injection branch pipe - Google Patents
U-shaped differential pressure gauge for ammonia injection branch pipe Download PDFInfo
- Publication number
- CN214309258U CN214309258U CN202120533846.7U CN202120533846U CN214309258U CN 214309258 U CN214309258 U CN 214309258U CN 202120533846 U CN202120533846 U CN 202120533846U CN 214309258 U CN214309258 U CN 214309258U
- Authority
- CN
- China
- Prior art keywords
- pipe
- differential pressure
- pressure gauge
- filter
- shaped
- 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
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
Abstract
The utility model relates to an ammonia injection branch pipe U type differential pressure gauge, including the differential pressure gauge main part, the differential pressure gauge main part have and spout the link that the ammonia branch pipe is linked together, U type differential pressure gauge still include filtering component, filtering component including getting press pipe, filter and connecting pipe, get press the pipe with the filter entry be linked together, the filter export with the connecting pipe be linked together, get press the pipe and be used for and spout the ammonia branch pipe and be linked together, the connecting pipe with the link of differential pressure gauge main part be linked together. The utility model discloses eliminate effectively and spout the influence of ammonia pipeline impurity to U type differential gauge precision and registration in the gas, improve accuracy, reliability, the suitability of spouting U type differential gauge on the ammonia branch pipe for U type differential gauge can accurate reliable reflection correspond the flow of branch pipe, have the significance to spouting the ammonia refined control.
Description
Technical Field
The utility model relates to a differential pressure gauge, in particular to spout ammonia branch pipe U type differential pressure gauge.
Background
The SCR (selective catalytic reduction) denitration technology is the most widely applied NOx control technology of a coal-fired power plant, a denitration reducing agent is liquid ammonia, and the denitration reducing agent is prepared by a liquid ammonia evaporation method, a urea pyrolysis method, a urea hydrolysis method and the like. The prepared ammonia gas is sent to the SCR reactor area through a pipeline to be mixed with the dilution air, and the mixed gas is sprayed into the inlet flue of the reactor through an ammonia spraying grid. Equipment such as an ammonia station, a urea hydrolyzer and the like has certain requirements on fire prevention distance, so the ammonia gas conveying process is generally far away, and certain impurities and tube wall rust fallen substances are mixed in the ammonia gas to enter an SCR ammonia spraying grid along the way. For the urea pyrolysis method and the urea hydrolysis method, the preparation efficiency is not 100%, and some impurity gases are always mixed in the product gas, so that urea is easy to produce again and enters an ammonia spraying grid.
Along with the implementation of ultra-low emission modification policy, the fine control requirement on SCR ammonia injection is higher and higher, so that the requirements on the accuracy and the reliability of a U-shaped differential pressure gauge connected to each ammonia injection branch pipe are higher and higher, the U-shaped differential pressure gauge accurately and reliably reflects the flow of the corresponding branch pipe, and the method has important significance on the optimization and adjustment of ammonia injection. However, in the actual operation process, no matter which ammonia preparation method, impurities in the pipeline have great influence on the U-shaped differential pressure gauge connected with the ammonia spraying branch pipe, and the problems of inaccuracy, blockage, unclean readings and the like of the U-shaped differential pressure gauge are easily caused.
Refer to chinese patent with publication number CN210485286U, and disclose a novel ammonia pipeline purification device, including two pipelines and two sets of purification mechanisms connected, purification mechanism upper and lower side pipes, cartridge filter, when ammonia passes through the cartridge filter, the cartridge filter filters the ammonia, gets rid of the impurity in the ammonia, and the ammonia after purifying gets into the pipeline again through lower side pipe, accomplishes the purification to the ammonia. But the device is arranged on the ammonia spraying branch pipe, has more transformation contents, large construction amount and complex operation, and does not have implementation conditions when the site space is narrow.
Disclosure of Invention
The utility model aims at providing a prevent ammonia injection branch pipe U type differential pressure gauge of stifled type solves the ammonia and carries impurity, the pipe wall rust that the on-way falls off the thing and mix and get into SCR and spout the ammonia grid in the ammonia, easily causes the inaccurate, the jam of U type differential pressure gauge, the unclear scheduling problem of registration viscosity.
In order to achieve the above purpose, the utility model adopts the technical scheme that:
the utility model provides a spout ammonia branch pipe U type differential pressure gauge, includes the differential pressure gauge main part, the differential pressure gauge main part have with spout the link that the ammonia branch pipe is linked together, U type differential pressure gauge still include filter assembly, filter assembly press pipe, filter and connecting pipe including getting, get press the pipe with the filter entry be linked together, the filter export with the connecting pipe be linked together, get press the pipe be used for with spout the ammonia branch pipe and be linked together, the connecting pipe with the link of differential pressure gauge main part be linked together.
Preferably, the filter comprises a filter tube body, a filter material filled in the filter tube body and a gasket, wherein the gasket is provided with air holes, and the pressure tapping pipe and the connecting pipe respectively press the gasket at two ends of the filter tube body. The upper gasket and the lower gasket are mainly used for fixing the filter, so that the filter does not fall off or move, and meanwhile, the fastening and sealing effects are achieved, and the air holes formed in the gaskets are convenient for air circulation.
Further preferably, the pressure sampling pipe, the filter pipe body and the connecting pipe have the same inner diameter.
Further preferably, the pressure tapping pipe, the filter pipe body and the connecting pipe are made of 316L stainless steel, and a urea layer is coated on the surface of the 316L stainless steel, so that corrosion is avoided.
Further preferably, the pressure tapping pipe and the connecting pipe are provided with connecting parts protruding out of the outer pipe wall of the pressure tapping pipe and the connecting pipe, and the connecting parts of the pressure tapping pipe and the connecting pipe and the filter pipe body are connected into a whole through a fastening assembly.
Preferably, the pressure sampling pipe, the filter and the connecting pipe are connected into a whole through bolts and nuts.
Preferably, the connecting pipe is connected with the differential pressure gauge main body through a connecting piece.
Further preferably, the connecting piece is any one of a clamping sleeve, a sealant and a bolt.
Preferably, the differential pressure gauge main body comprises a U-shaped pipe, indicating liquid filled in the U-shaped pipe and a plate body with scales, the U-shaped pipe is fixed on the plate body, and one end of the U-shaped pipe is connected with the connecting pipe.
Further preferably, the differential pressure gauge main body further comprises a fixing seat, and the fixing seat at least reinforces two ends and the middle part of the U-shaped pipe on the plate body. The fixing seat is used for fixing the U-shaped pipe and preventing the U-shaped pipe from vibrating due to vibration of the ammonia spraying branch pipe, so that the number is stably displayed, the fixing seat is arranged at two ends and the middle of the U-shaped pipe, and at least three fixing seats can play a role in stabilizing.
Because of the application of the technical scheme, compared with the prior art, the utility model has the following advantages:
the utility model discloses eliminate effectively and spout the influence of ammonia pipeline impurity to U type differential gauge precision and registration in the gas, improve accuracy, reliability, the suitability of spouting U type differential gauge on the ammonia branch pipe for U type differential gauge can accurate reliable reflection correspond the flow of branch pipe, have the significance to spouting the ammonia refined control.
Drawings
FIG. 1 is a schematic structural diagram of the present embodiment;
FIG. 2 is a schematic cross-sectional view of the filter of the present embodiment;
fig. 3 is a schematic view of the gasket in this embodiment.
Wherein:
1. a U-shaped tube; 2. an indicator fluid; 3. a plate body; 30. calibration; 4. a fixed seat; 5. a pressure sampling pipe; 50. a connecting portion; 6. a filter; 60. a filter tube body; 61. filtering the mixture; 62. a gasket; 620. air holes; 7. a connecting pipe; 70. a connecting portion; 8. a connecting member; 90. a bolt; 91. and a nut.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The U-shaped differential pressure gauge of the ammonia injection branch pipe shown in figure 1 comprises a differential pressure gauge main body and a filtering assembly. Wherein:
the differential pressure gauge main body has a connection end communicated with the ammonia injection branch pipe, in this embodiment: the differential pressure gauge main body comprises a U-shaped pipe 1, indicating liquid 2 filled in the U-shaped pipe 1 and a plate body 3 with scales 30 displayed, the U-shaped pipe 1 is fixed on the plate body 3, and one end of the U-shaped pipe 1 forms a connecting end.
The main body of the differential pressure gauge further comprises a fixed seat 4, and the fixed seat 4 at least reinforces the two ends and the middle part of the U-shaped pipe 1 on the plate body 3. The fixing base 4 is used for fixing the U-shaped pipe 1 and does not vibrate due to the vibration of the ammonia spraying branch pipe, the effect of stable reading is achieved, the fixing base 4 is required to be installed at the two ends and the middle of the U-shaped pipe 1, and at least three effects of stabilizing can be achieved.
As shown in fig. 2: the filtering component comprises a pressure tapping pipe 5, a filter 6 and a connecting pipe 7, the pressure tapping pipe 5 is communicated with an inlet of the filter 6, an outlet of the filter 6 is communicated with the connecting pipe 7, the pressure tapping pipe 5 is used for being communicated with an ammonia spraying branch pipe, and the connecting pipe 7 is communicated with a connecting end of the U-shaped pipe 1. The connecting pipe 7 is connected with the connecting end of the U-shaped pipe 1 through a connecting piece 8, and the connecting piece 8 can be in various forms such as a clamping sleeve, a sealant, a bolt and the like.
The filter 6 comprises a filter tube 60, a filter 61 filled in the filter tube 60 and a gasket 62, the gasket 62 is provided with an air hole 620, and the pressure sampling tube 5 and the connecting tube 7 respectively press the gasket 62 at two ends of the filter tube 60. The filter 61 can be supplemented by glass fiber, the upper and lower gaskets 62 mainly function to fix the filter 61 so that it does not fall off and move, and also function as fastening and sealing, and the air holes 620 formed in the gaskets 62 facilitate the air circulation as shown in fig. 3. In this embodiment: the pressure sampling pipe 5 and the connecting pipe 7 are provided with connecting parts 50 and 70 protruding out of the outer pipe wall, and the connecting parts 50 and 70 of the pressure sampling pipe 5 and the connecting pipe 7 are connected with the filter pipe body 60 into a whole through bolts 90 and nuts 91.
In addition, the internal diameter of pressure pipe 5, filter body 60 and connecting pipe 7 is unanimous, and pressure pipe 5, filter body 60 and connecting pipe 7 adopt 316L stainless steel to at the coating of 316L stainless steel surface urea layer, avoid corroding.
When in use: the pressure sampling pipe 5 is led out from the ammonia spraying branch pipe, impurities in smoke gas flow are filtered after the smoke gas flow passes through the filter 6, then the smoke gas flow enters the U-shaped pipe 1 through the connecting pipe 7, when gas flows through, the indicating liquid 2 in the U-shaped pipe 1 moves in the U-shaped pipe 1 to generate a liquid level difference, and the number is read by reading the scale 30 on the plate body 3.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable people skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.
Claims (10)
1. The utility model provides an ammonia injection branch pipe U type differential pressure gauge, includes the differential pressure gauge main part, the differential pressure gauge main part have with the link that the ammonia injection branch pipe is linked together, its characterized in that: the U-shaped differential pressure gauge further comprises a filtering assembly, the filtering assembly comprises a pressure tapping pipe, a filter and a connecting pipe, the pressure tapping pipe is communicated with the inlet of the filter, the outlet of the filter is communicated with the connecting pipe, the pressure tapping pipe is communicated with the ammonia spraying branch pipe, and the connecting pipe is communicated with the connecting end of the differential pressure gauge main body.
2. The U-shaped differential pressure gauge of the ammonia injection branch pipe of claim 1, wherein: the filter comprises a filter pipe body, filter substances filled in the filter pipe body and gaskets, wherein air holes are formed in the gaskets, and the gaskets are respectively pressed at two ends of the filter pipe body by the pressure tapping pipe and the connecting pipe.
3. The U-shaped differential pressure gauge of the ammonia injection branch pipe of claim 2, wherein: the pressure sampling pipe, the filter pipe body and the connecting pipe are consistent in inner diameter.
4. The U-shaped differential pressure gauge of the ammonia injection branch pipe of claim 2, wherein: the pressure sampling pipe, the filter pipe body and the connecting pipe are made of 316L stainless steel, and a urea layer is coated on the surface of the 316L stainless steel.
5. The U-shaped differential pressure gauge of the ammonia injection branch pipe of claim 2, wherein: the pressure tapping pipe and the connecting pipe are provided with connecting parts protruding out of the outer pipe walls of the pressure tapping pipe and the connecting pipe, and the connecting parts of the pressure tapping pipe and the connecting pipe and the filter pipe body are connected into a whole through fastening components.
6. The U-shaped differential pressure gauge of the ammonia injection branch pipe according to claim 1, 2 or 5, wherein: the pressure sampling pipe, the filter and the connecting pipe are connected into a whole through bolts and nuts.
7. The U-shaped differential pressure gauge of the ammonia injection branch pipe of claim 1, wherein: the connecting pipe is connected with the differential pressure gauge main body through a connecting piece.
8. The U-shaped differential pressure gauge of the ammonia injection branch pipe of claim 7, wherein: the connecting piece is any one of a clamping sleeve, a sealant and a bolt.
9. The U-shaped differential pressure gauge of the ammonia injection branch pipe of claim 1, wherein: the differential pressure gauge main part include the U-shaped pipe, fill in the U-shaped intraductal indicator liquid and show the plate body that has the scale, the U-shaped pipe fix the plate body on, the one end of U-shaped pipe with the connecting pipe be connected.
10. The ammonia injection branch pipe U-shaped differential pressure gauge according to claim 9, wherein: the differential pressure gauge main part still include the fixing base, the fixing base with the both ends of U-shaped pipe, middle part reinforcement at least on the plate body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120533846.7U CN214309258U (en) | 2021-03-15 | 2021-03-15 | U-shaped differential pressure gauge for ammonia injection branch pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120533846.7U CN214309258U (en) | 2021-03-15 | 2021-03-15 | U-shaped differential pressure gauge for ammonia injection branch pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214309258U true CN214309258U (en) | 2021-09-28 |
Family
ID=77836603
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120533846.7U Active CN214309258U (en) | 2021-03-15 | 2021-03-15 | U-shaped differential pressure gauge for ammonia injection branch pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214309258U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114367195A (en) * | 2021-12-17 | 2022-04-19 | 苏州西热节能环保技术有限公司 | SCR denitration ammonia-spraying grid online ash blocking prevention purging system and fault diagnosis method |
-
2021
- 2021-03-15 CN CN202120533846.7U patent/CN214309258U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114367195A (en) * | 2021-12-17 | 2022-04-19 | 苏州西热节能环保技术有限公司 | SCR denitration ammonia-spraying grid online ash blocking prevention purging system and fault diagnosis method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN214309258U (en) | U-shaped differential pressure gauge for ammonia injection branch pipe | |
| CN215066412U (en) | Ammonia decomposition catalyst performance evaluation device of real flue gas | |
| JPH067643A (en) | Method of purifying combustor exhaust gas | |
| CN108014610A (en) | Ammonia desulfurizing process and its desulfurizer | |
| CA2640323A1 (en) | Mercury ionic gas standard generator for a continuous emissions monitoring system | |
| CN211205941U (en) | Differential pressure type flue gas gridding multi-point sampling device | |
| JP2011128004A (en) | Gas flow velocity meter in gas-liquid two-phase flow | |
| CN202343090U (en) | Glue gas denitrification jet distribution module | |
| CN206184225U (en) | A high temperature sample gas filter for ammonia escape on -line monitoring system | |
| CN208254559U (en) | A kind of anti-corrosion type integration orifice plate | |
| CN217007214U (en) | Steel chimney | |
| CN208399386U (en) | A kind of anti-blocking resistant wear multipoint mode the escaping of ammonia on-line analysis monitoring device | |
| CN216484828U (en) | Device for testing integral CDPF performance | |
| CN209745641U (en) | Denitration inlet and outlet grid method mixed sampling device and mounting structure thereof | |
| CN113324597B (en) | Method for simultaneously monitoring oil, gas and water three-phase flow | |
| CN212008207U (en) | Weighing type solution on-line densimeter | |
| CN211799902U (en) | Sulfuric acid mist sampling device applied to waste gas | |
| CN220238248U (en) | Unit spouts ammonia monitoring devices | |
| CN212585771U (en) | Online pipeline replacement ultrasonic flow sensor device | |
| CN209596934U (en) | SCR denitration reducing agent injection apparatus | |
| CN219682180U (en) | SCR denitration system | |
| CN214209859U (en) | Exhaust device for sampling valve | |
| CN211085840U (en) | Denitration inlet and outlet comb-tooth type grid method mixing sampling device and mounting structure thereof | |
| CN215901276U (en) | Urea dissolving, storing and conveying integrated device | |
| CN219265422U (en) | Liquid level measuring device and reaction tower |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |