CN219647124U - Flue gas velocity of flow pressure temperature monitoring devices - Google Patents
Flue gas velocity of flow pressure temperature monitoring devices Download PDFInfo
- Publication number
- CN219647124U CN219647124U CN202320462886.6U CN202320462886U CN219647124U CN 219647124 U CN219647124 U CN 219647124U CN 202320462886 U CN202320462886 U CN 202320462886U CN 219647124 U CN219647124 U CN 219647124U
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- China
- Prior art keywords
- molecular sieve
- sieve drying
- flue gas
- drying column
- transmitter
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- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 35
- 239000003546 flue gas Substances 0.000 title claims abstract description 35
- 238000012806 monitoring device Methods 0.000 title claims abstract description 15
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 claims abstract description 87
- 239000002808 molecular sieve Substances 0.000 claims abstract description 86
- 238000001035 drying Methods 0.000 claims abstract description 84
- 238000012544 monitoring process Methods 0.000 claims abstract description 13
- 230000001105 regulatory effect Effects 0.000 claims abstract description 12
- 238000007664 blowing Methods 0.000 claims abstract description 8
- 239000007789 gas Substances 0.000 claims description 23
- 238000007789 sealing Methods 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 4
- 230000006872 improvement Effects 0.000 description 6
- 238000009530 blood pressure measurement Methods 0.000 description 5
- 230000002159 abnormal effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- 239000000523 sample Substances 0.000 description 3
- 229910021536 Zeolite Inorganic materials 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000010457 zeolite Substances 0.000 description 2
- 229910000323 aluminium silicate Inorganic materials 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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- Sampling And Sample Adjustment (AREA)
Abstract
The utility model provides a flue gas flow velocity pressure temperature monitoring device, which comprises: a housing including a pitot tube disposed within the housing and a temperature sensor; the molecular sieve drying device is connected with the pitot tube and comprises a first molecular sieve drying column and a second molecular sieve drying column, and the first molecular sieve drying column and the second molecular sieve drying column are used in a switching way through a three-way electromagnetic valve group; the pressure transmitter comprises a transmitter body and a transmitter base connected with the transmitter body, wherein one end of the transmitter base is communicated with the molecular sieve drying device and is used for monitoring the flue gas flow rate of the pipeline; the back blowing device comprises a regulating valve communicated with the other end of the transmitter base and an air pump communicated with the regulating valve. The molecular sieve drying device connected with the pitot tube is arranged to dry the flue gas, so that wet air in the flue gas is removed, and the phenomenon that the service life of a monitoring instrument is influenced by the fact that water drops condensed by the wet air enter the pressure transmitter is prevented.
Description
Technical Field
The utility model relates to a flue gas flow velocity pressure temperature monitoring device, which is applied to the technical field of flue gas detection.
Background
Along with the development of economy, the national requirement for environmental protection has improved many, the flue gas emission of city is an important aspect of environmental protection, the composition that contains in the flue gas and the velocity of flow of flue gas all need to monitor and monitor, current velocity of flow detector is mostly integrated into one piece fixed mounting in the flue, the flue gas enters into the sensor through the pipeline, monitor the temperature of flue gas flue through temperature sensor, realize the measurement of flue gas velocity of flow through pressure transmitter and adopt differential pressure sensing method, so that the situation in the real-time supervision flue, prior art installs and removes conveniently, be convenient for transportation and transport, but still have following shortcoming: because the gas humidity in the flue gas pipeline is high, and the change of temperature is high, water vapor in the air is condensed into beads, and enters the pressure transmitter to influence the service life of the instrument, so that the long-term monitoring and the use are not facilitated, and the flue gas flow velocity, pressure and temperature monitoring device is designed for solving the problems.
Disclosure of Invention
The utility model provides a flue gas flow velocity pressure temperature monitoring device which can effectively solve the problems.
The utility model is realized in the following way:
a flue gas flow rate pressure temperature monitoring device comprising:
the shell comprises a pitot tube and a temperature sensor, wherein the pitot tube and the temperature sensor are arranged in the shell, and the pitot tube comprises an air inlet end and an air outlet end;
the molecular sieve drying device is connected with the air inlet end and is used for drying the gas;
the pressure transmitter comprises a transmitter body and a transmitter base connected with the transmitter body, wherein one end of the transmitter base is communicated with the molecular sieve drying device and is used for monitoring the flue gas flow rate of the pipeline;
and the back blowing device is communicated with the other end of the transmitter base and is used for back blowing gas into the flue gas pipeline.
As a further improvement, the molecular sieve drying device comprises a first molecular sieve drying column and a second molecular sieve drying column, wherein the first molecular sieve drying column and the second molecular sieve drying column are used in a switching way through a three-way electromagnetic valve group.
As a further improvement, the three-way electromagnetic valve group comprises a first three-way electromagnetic valve and a second three-way electromagnetic valve which are communicated with the pitot tube, wherein the first three-way electromagnetic valve is connected with the first molecular sieve drying column, and the second three-way electromagnetic valve is connected with the second molecular sieve drying column.
As a further improvement, the first molecular sieve drying column and the second molecular sieve drying column both comprise a first gas connector communicated with the first three-way electromagnetic valve and the second three-way electromagnetic valve, the first gas connector is connected with the molecular sieve drying column shell, and the molecular sieve drying column shell is internally provided with a molecular sieve; the first molecular sieve drying column is communicated with the second molecular sieve drying column through a shuttle valve, the shuttle valve is connected with the second gas joint, and the shuttle valve is connected with the pressure transmitter through a conduit.
As a further improvement, the transmitter base comprises a pressure measuring connector, measuring diaphragms are arranged at two ends of the pressure measuring connector, pressure guiding components are connected at two ends of the pressure measuring connector, a sealing piece is arranged between the pressure measuring connector and the pressure guiding components, and a pressure guiding interface is arranged on the pressure guiding components.
As a further improvement, the back blowing device comprises a regulating valve communicated with the other end of the transmitter base and an air pump communicated with the regulating valve, and the regulating valve is communicated with the transmitter base through a one-way valve.
The beneficial effects of the utility model are as follows: the molecular sieve drying device connected with the pitot tube is arranged to dry the flue gas, so that wet air in the flue gas is removed, and the phenomenon that the service life of a monitoring instrument is influenced by water drops condensed by the wet air entering a pressure transmitter is prevented; the molecular sieve drying device comprises a first molecular sieve drying column and a second molecular sieve drying column, wherein the first molecular sieve drying column and the second molecular sieve drying column are used in a switching mode through a three-way electromagnetic valve group, and in the real-time monitoring process, the mode of switching the operation of the molecular sieve drying column is changed, so that the phenomenon that the monitoring is not timely caused by abnormal pipelines due to disconnection monitoring when the molecular sieve drying column is changed is prevented.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram provided in an embodiment of the present utility model.
Fig. 2 is a schematic structural diagram of a blowback apparatus according to an embodiment of the present utility model.
FIG. 3 is a schematic diagram of an exploded construction of a pressure transmitter provided in an embodiment of the present utility model.
Fig. 4 is a schematic cross-sectional structure of a molecular sieve drying device according to an embodiment of the present utility model.
Wherein:
10. a housing; 11. a pitot tube; 111. an air inlet end; 112. an air outlet end; 12. a temperature sensor; 20. a molecular sieve drying device; 21. a first molecular sieve drying column; 22. a second molecular sieve drying column; 23. three-way electromagnetic valve group; 231. a first three-way electromagnetic valve; 231a, first port; 231b, a second port; 231c, third port; 232a, a fourth port 232b, a fifth port; 232c, sixth port; 232. a second three-way electromagnetic valve; 24. a first gas connector; 25. drying column shell of molecular sieve; 26. a molecular sieve; 27. a shuttle valve; 28. a second gas connector; 30. a pressure transmitter; 31. a transmitter body; 32. a transmitter base; 321. a pressure measuring joint; 322. measuring the diaphragm; 323. a pressure guiding component; 324. a seal, 325, a pressure interface; 40. a back-blowing device; 41. a regulating valve; 42. a one-way valve.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model. Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model.
In the description of the present utility model, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
Referring to fig. 1, a flue gas velocity, pressure and temperature monitoring device comprises a shell 10, wherein the shell 10 is provided with a flange, and the flange can be conveniently installed in a flue gas pipeline, so that the device is convenient to install and detach, and is convenient to transport and carry. The shell 10 comprises a pitot tube 11 and a temperature sensor 12, wherein the pitot tube 11 is arranged in the shell 10, the pitot tube 11 is connected in the shell 10 through a hoop, and the pitot tube 11 comprises an air inlet end 111 and an air outlet end 112; the temperature sensor 12 comprises a temperature sensor body and a temperature probe, the temperature sensor body and the temperature sensor probe are connected through wires, the temperature probe is located in the shell 10, and the temperature sensor body is arranged outside the shell 10.
Referring to fig. 4, the molecular sieve drying device 20 is connected to the air inlet end 111 of the pitot tube 11, the molecular sieve drying device 20 includes a first molecular sieve drying column 21 and a second molecular sieve drying column 22, and the first molecular sieve drying column 21 and the second molecular sieve drying column 22 are switched to use by a three-way electromagnetic valve group 23. The three-way electromagnetic valve group 23 comprises a first three-way electromagnetic valve 231 and a second three-way electromagnetic valve 232 which are communicated with the pitot tube 11, the first three-way electromagnetic valve 231 is connected with the first molecular sieve drying column 21, and the second three-way electromagnetic valve 232 is connected with the second molecular sieve drying column 22.
When the molecular sieve drying device 20 is in use, the first port 231a and the second port 231b of the first three-way electromagnetic valve 231 are opened, and the third port of the first three-way electromagnetic valve 231 is closed when the first molecular sieve drying column 21 is in a gas drying working state; the fourth port 232a of the second three-way electromagnetic valve 232 is closed, the fifth port 232b and the sixth port 232c are opened, the gas enters the first molecular sieve drying column 21 from the first port 231a to the second port 231b of the first three-way electromagnetic valve 231 to dry the gas, otherwise, the working principle of the second molecular sieve drying column 22 is also the same, and in the process of real-time monitoring, the replacement can be performed by switching the working mode of the molecular sieve drying column, so that the phenomenon that the monitoring is not timely abnormal due to the disconnection of monitoring when the molecular sieve drying column is replaced is prevented. The molecular sieve drying device 20 has a problem that the flow rate of gas is reduced after passing through the molecular sieve drying device 20, and through multiple groups of experimental tests, when the same flow rate of gas passes through the molecular sieve drying device 20 and is not provided with the molecular sieve drying device 20, the flow rate difference between an experimental group and a control group is calculated, and an average value is calculated and converted into 1.35, namely, the flue gas flow rate, pressure and temperature monitoring device provided with the molecular sieve drying device 20 needs to be multiplied by a proportionality coefficient of 1.35, when the flow rate in a flue gas pipeline is abnormal, the flow rate is changed greatly, and the error between the replacement of a molecular sieve drying column is ignored.
The first molecular sieve drying column 21 and the second molecular sieve drying column 22 each comprise a first gas connector 24 communicated with the first three-way electromagnetic valve 231 and the second three-way electromagnetic valve 232, the first gas connectors 24 are connected with the molecular sieve drying column shell 25, and the molecular sieve 26 is contained in the molecular sieve drying column shell 25; the molecular sieve 26 is an artificially synthesized hydrated aluminosilicate (zeolite) or natural zeolite with molecular screening function, which structurally has a plurality of pore channels with uniform pore diameters and orderly arranged holes, and the molecular sieves with different pore diameters separate molecules with different sizes and shapes, and have high adsorption capacity, strong selectivity and high temperature resistance, so that the molecular sieve 26 is selected as a drying device to effectively adsorb water vapor in the air, and has stable structure and high temperature resistance, and therefore, the molecular sieve 26 is selected as the drying device to have long service life and prevent the drying device from being replaced frequently by manpower. The first molecular sieve drying column 21 and the second molecular sieve drying column 22 are communicated through a shuttle valve 27, the shuttle valve 27 is connected with a second gas connector 28, and the shuttle valve 27 is connected with the pressure transmitter 30 through a conduit.
Referring to fig. 3, the pressure transmitter 30 includes a transmitter body 31 and a transmitter base 32 connected to the transmitter body 31, wherein one end of the transmitter base 32 is communicated with the molecular sieve drying device 20 for monitoring the flue gas flow rate of the pipeline; the transmitter base 32 includes pressure measurement joint 321, pressure measurement joint 321 connects the transmitter body 31, pressure measurement joint 321 both ends set up measurement diaphragm 322, pressure measurement joint 321 both ends are connected and are drawn pressure subassembly 323, pressure measurement joint 321 with draw and press and set up sealing member 324 between the subassembly 323, sealing member 324 is the sealing washer, draw to press and set up and draw pressure interface 325 on the subassembly 323. The working principle of the pressure transmitter 30 is that two pressures of a measured medium are introduced into a high pressure chamber and a low pressure chamber, act on the measuring diaphragms 322 on two sides of the pressure measuring joint 321, and are transmitted to two sides of the measuring diaphragms 322 through the isolating sheets and filling liquid in the elements. The capacitive pressure transmitter is a capacitor formed by measuring diaphragm 322 and electrodes on the insulating sheets on both sides. When the pressures at the two sides are inconsistent, the measuring diaphragm 322 is caused to displace, the displacement is proportional to the pressure difference, so that the capacitance of the two sides is not equal, and the signals are converted into signals proportional to the pressure through an oscillation and demodulation link.
Referring to fig. 2, the blowback apparatus 40 includes a regulating valve 41 connected to the other end of the transmitter base 32 and an air pump connected to the regulating valve 41. The regulating valve 41 is communicated with the transmitter base 32 through a one-way valve 42. The blowback device 40 performs blowback on the pitot tube 11 at regular time according to the instruction sent by the signal processing controller, so as to prevent the pitot tube 11 from being blocked. The blowback device 40 is equipped with an air pump to ensure that there is sufficient pulsed gas to blow back.
The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, and various modifications and variations may be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (6)
1. A flue gas flow rate pressure temperature monitoring device, characterized by comprising:
a housing (10) comprising a pitot tube (11) and a temperature sensor (12) disposed within the housing (10), the pitot tube (11) comprising an inlet end (111) and an outlet end (112);
a molecular sieve drying device (20) connected with the air inlet end (111); the molecular sieve drying device (20) is used for drying the gas;
the pressure transmitter (30) comprises a transmitter body (31) and a transmitter base (32) connected with the transmitter body (31), wherein one end of the transmitter base (32) is communicated with the molecular sieve drying device (20) and is used for monitoring the flue gas flow rate of a pipeline;
and the back blowing device (40) is communicated with the other end of the transmitter base (32) and is used for back blowing gas into the flue gas pipeline.
2. The flue gas flow rate pressure temperature monitoring device according to claim 1, wherein the molecular sieve drying device (20) comprises a first molecular sieve drying column (21) and a second molecular sieve drying column (22), and the first molecular sieve drying column (21) and the second molecular sieve drying column (22) are switched to be used through a three-way electromagnetic valve group (23).
3. A flue gas flow rate pressure temperature monitoring device according to claim 2, characterized in that the three-way electromagnetic valve group (23) comprises a first three-way electromagnetic valve (231) and a second three-way electromagnetic valve (232) which are communicated with the pitot tube (11), the first three-way electromagnetic valve (231) is connected with the first molecular sieve drying column (21), and the second three-way electromagnetic valve (232) is connected with the second molecular sieve drying column (22).
4. A flue gas flow rate pressure temperature monitoring device according to claim 3, characterized in that the first molecular sieve drying column (21) and the second molecular sieve drying column (22) each comprise a first gas connector (24) in communication with the first three-way solenoid valve (231) and the second three-way solenoid valve (232), the first gas connector (24) being connected to a molecular sieve drying column housing (25), the molecular sieve drying column housing (25) containing a molecular sieve (26); the first molecular sieve drying column (21) and the second molecular sieve drying column (22) are communicated through a shuttle valve (27), the shuttle valve (27) is connected with a second gas connector (28), and the second gas connector (28) is connected with the pressure transmitter (30) through a conduit.
5. The flue gas flow rate pressure temperature monitoring device according to claim 1, wherein the transmitter base (32) comprises a pressure measuring joint (321), measuring diaphragms (322) are arranged at two ends of the pressure measuring joint (321), pressure guiding components (323) are connected at two ends of the pressure measuring joint (321), sealing elements (324) are arranged between the pressure measuring joint (321) and the pressure guiding components (323), and pressure guiding interfaces (325) are arranged on the pressure guiding components (323).
6. The flue gas flow rate pressure temperature monitoring device according to claim 1, wherein the back blowing device (40) comprises a regulating valve (41) communicated with the other end of the transmitter base (32) and an air pump communicated with the regulating valve (41), and the regulating valve (41) is communicated with the transmitter base (32) through a one-way valve (42).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320462886.6U CN219647124U (en) | 2023-03-13 | 2023-03-13 | Flue gas velocity of flow pressure temperature monitoring devices |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320462886.6U CN219647124U (en) | 2023-03-13 | 2023-03-13 | Flue gas velocity of flow pressure temperature monitoring devices |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219647124U true CN219647124U (en) | 2023-09-08 |
Family
ID=87857682
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320462886.6U Active CN219647124U (en) | 2023-03-13 | 2023-03-13 | Flue gas velocity of flow pressure temperature monitoring devices |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219647124U (en) |
-
2023
- 2023-03-13 CN CN202320462886.6U patent/CN219647124U/en active Active
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