CN211635961U - A measurement distributor for denitration of boiler flue gas - Google Patents
A measurement distributor for denitration of boiler flue gas Download PDFInfo
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- CN211635961U CN211635961U CN201921637476.0U CN201921637476U CN211635961U CN 211635961 U CN211635961 U CN 211635961U CN 201921637476 U CN201921637476 U CN 201921637476U CN 211635961 U CN211635961 U CN 211635961U
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- ball valve
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- working medium
- denitration
- compressed air
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Abstract
The utility model discloses a measurement distributor for boiler flue gas denitration, including casing and measurement distribution mechanism, measurement distribution mechanism arranges the casing inner chamber in with compressed air, the input/output of denitration reductant and soft water is integrated to an integrated module, denitration reductant input pipeline is the same with soft water input pipeline structure, utilize the holistic miniaturization of device, adopt the blender to carry out intensive mixing and carry out the unified distribution by mixing working medium distributor denitration reductant and soft water simultaneously, guarantee that every output pipeline's pressure keeps unanimous, the operation of being convenient for, save space, make whole flow more simple and convenient, and can resources are saved make and handle more accurate careful.
Description
Technical Field
The utility model relates to a measurement distribution technical field specifically is a measurement distributor for boiler flue gas denitration.
Background
At present, the flue gas treatment and denitration process of a coal-fired boiler mainly adopts selective catalytic reduction method and selective non-catalytic reduction method technologies. In the two technologies, the preparation of the denitration agent is required, when urea or ammonia water is used as the denitration agent, the denitration agent solution is high in concentration during storage, and needs to be diluted to low concentration during use, so that the denitration agent is inconvenient, inconvenient to operate, high in pollution, resource-wasting and environmentally-friendly.
The new technology regards urea or ammonia water as the flue gas treatment denitration technology of denitrifier, mix high-concentration denitrifier and dilution water, dilute, measure, distribute, prepare into the denitrifier of low concentration to use, in this technology, the input/output of compressed air, denitration reductant and soft water is integrated to an integrated module, denitration reductant input pipeline is the same with soft water input pipeline structure, utilize the holistic miniaturization of device, adopt the blender to fully mix denitration reductant and soft water and carry out the unified distribution by mixing working medium distributor simultaneously, guarantee that the pressure of every output pipeline keeps unanimous, this technology can be widely applied to the measurement distribution technical field of denitration as an automatic denitration working medium measurement dilution distribution module.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a measurement distributor for boiler flue gas denitration to the problem that the above-mentioned background of prior art mentioned has been solved.
In order to achieve the above object, the utility model provides a following technical scheme: a metering and distributing device for denitration of boiler flue gas comprises a shell and a metering and distributing mechanism, wherein the metering and distributing mechanism is arranged in an inner cavity of the shell, the shell comprises a central control screen, a shell door, a heat dissipation fan and a door handle, the central control screen is embedded on the upper surface of the shell door, the heat dissipation fan is embedded on the lower surface of the shell door, and the door handle is fixed on one side of the shell door, which is opened and closed;
the metering distribution mechanism comprises a PLC control system, a first pressure gauge, a first flow sensor, a first electric execution ball valve, a second pressure gauge, a second flow sensor, a second electric execution ball valve, a mixer, a mixed working medium distributor, a third pressure gauge, a third flow sensor, an electromagnetic valve, a gas source processor, a compressed air distributor, a compressed air inlet, a compressed air drain outlet, a reducing agent inlet, a soft water inlet, a mixed working medium drain outlet, a first drain valve and a second drain valve, the PLC control system is arranged at the upper part of the metering distribution mechanism B and is respectively connected with the electromagnetic valve, the first electric execution ball valve and the second electric execution ball valve in sequence, one end of the first electric execution ball valve is connected with a reducing agent inlet feeding pipeline, the other end of the first electric execution ball valve is connected with the first flow sensor, and the other end of the first flow sensor is connected with the first electric execution ball valve, one end of a second pressure gauge is connected with the soft water inlet through a water inlet pipeline, the other end of the second pressure gauge is connected with a second flow sensor, the other end of the second flow sensor is connected with a second electric execution ball valve, the first electric execution ball valve and the second electric execution ball valve are both connected with a mixer, the other end of the mixer is connected with a mixed working medium distributor, and the first blow-off valve is connected with the lower part of the mixer through a blow-off pipeline and a compressed air blow-off port in a sealing mode.
Preferably, the mixed working medium distributor comprises a mixed working medium distributor body, an adjustable float flowmeter and a mixed working medium exhaust pipe, one end of the mixed working medium distributor is connected with the adjustable float flowmeter, the other end of the mixed working medium distributor is connected with the mixer, and one end of the adjustable float flowmeter is hermetically connected with the mixed working medium exhaust pipe.
Preferably, the compressed air distributor comprises a compressed air distributor body, a ball valve and a high-energy exhaust pipe, wherein one end of the ball valve is connected with the compressed air distributor, and the other end of the ball valve is connected with the high-energy exhaust pipe in a sealing manner.
Preferably, the input pipelines of the compressed air inlet, the reducing agent inlet and the soft water inlet are identical in structure.
Preferably, the mixer and the mixed working medium distributor are directly connected, and the pressure of each output pipeline is kept consistent.
Compared with the prior art, the beneficial effects of the utility model are as follows:
1. this a measurement distributor for boiler flue gas denitration integrates a module with compressed air entry, reductant entry and soft water entry and output, and denitration reductant input pipeline is the same with soft water input pipeline structure for the whole miniaturization of device, the operation of being convenient for practices thrift the space.
2. This a measurement distributor for boiler flue gas denitration adopts the blender to carry out intensive mixing and distribute by mixing working medium distributor to denitration reductant and soft water simultaneously, guarantees that every output line's pressure keeps unanimous for whole flow is more simple and convenient, and can resources are saved make the processing more accurate careful.
Drawings
Fig. 1 is a front view of the housing of the present invention;
FIG. 2 is a view showing the internal structure of the metering and dispensing device of the present invention;
FIG. 3 is a structural diagram of the mixed working medium distributor of the present invention;
fig. 4 is a plan view of the compressed air distributor of the present invention.
In the figure: A. a housing; a1, a central control screen; a2, shell door; a3, heat dissipation fan; a4, door handle; B. a metering dispensing mechanism; 1. a PLC control system; 2. a first pressure gauge; 3. a first flow sensor; 4. a first electrically actuated ball valve; 5. a second pressure gauge; 6. a second flow sensor; 7. a second electrically actuated ball valve; 8. a mixer; 9. a mixed working medium distributor; 91. An adjustable float flow meter; 911. a mixed working medium calandria; 10. a third pressure gauge; 11. a third flow sensor; 12. an electromagnetic valve; 13. an air source processor; 14. a compressed air distributor; 141. a ball valve; 142. a high-energy exhaust pipe; 15. a compressed air inlet; 16. a compressed air drain outlet; 17. a reductant inlet; 18. a soft water inlet; 19. a mixed working medium drain outlet; 20. A first waste valve; 21. and a second blowdown valve.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. 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.
Referring to fig. 1-3, a metering and distributing device for denitration of boiler flue gas comprises a casing a and a metering and distributing mechanism B, wherein the metering and distributing mechanism B is disposed in an inner cavity of the casing a, the casing a comprises a central control screen a1, a casing door a2, a heat dissipation fan A3 and a door handle a4, the central control screen a1 is embedded on the upper surface of the casing door a2, the heat dissipation fan A3 is embedded on the lower surface of the casing door a2, and the door handle a4 is fixed on the opening and closing side of the casing door a 2;
the metering distribution mechanism B comprises a PLC control system 1, a first pressure gauge 2, a first flow sensor 3, a first electric execution ball valve 4, a second pressure gauge 5, a second flow sensor 6, a second electric execution ball valve 7, a mixer 8, a mixed working medium distributor 9, a third pressure gauge 10, a third flow sensor 11, an electromagnetic valve 12, a gas source processor 13, a compressed air distributor 14, a compressed air inlet 15, a compressed air drain outlet 16, a reducing agent inlet 17, a soft water inlet 18, a mixed working medium drain outlet 19, a first drain valve 20 and a second drain valve 21, wherein the other end of the first flow sensor 3 is connected with the first electric execution ball valve 4, one end of the second pressure gauge 5 is connected with the soft water inlet 18 through a water inlet pipe, the other end of the second pressure gauge is connected with the second flow sensor 6, the other end of the second flow sensor 6 is connected with the second electric execution ball valve 7, the first electric execution ball valve 4 and the second electric execution ball valve 7 are both connected with the mixer 8, the other end of the mixer 8 is connected with the mixed working medium distributor 9, the first blow-off valve 20 is connected with the lower part of the mixer 8 through a blow-off pipeline, the mixed working medium distributor 9 comprises a mixed working medium distributor 9 body, an adjustable float flowmeter 91 and a mixed working medium exhaust pipe 911, one end of the mixed working medium distributor 9 is connected with the adjustable float flowmeter 91, the other end of the mixed working medium distributor is connected with the mixer 8, one end of the adjustable float flowmeter 91 is hermetically connected with the mixed working medium exhaust pipe 911, the compressed air distributor 14 comprises a compressed air distributor 14 body, a ball valve 141 and a high-energy exhaust pipe 142, one end of the ball valve 141 is connected with the compressed air distributor 14, the other end of the ball valve is hermetically connected with the high-energy exhaust pipe 142, the mixer 8 and the mixed working medium distributor 9 are directly connected, and the pressure of each output pipeline is kept consistent.
In summary, the following steps: this a measurement distributor for boiler flue gas denitration integrates compressed air inlet 15, reductant entry 17 and soft water entry 18 and output to an integrated module, and denitration reductant input pipeline is the same with soft water input pipeline structure for the whole miniaturization of device, the operation of being convenient for practices thrift the space. Adopt blender 8 to carry out abundant mixing and the unified distribution by mixing medium distributor 9 to denitration reductant and soft water simultaneously, guarantee that the pressure of every output line keeps unanimous for whole flow is more simple and convenient, and can resources are saved makes the processing more accurate careful.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (5)
1. The utility model provides a measurement distributor for denitration of boiler flue gas, includes casing (A) and measurement distribution device (B), and casing (A) inner chamber, its characterized in that are placed in measurement distribution device (B): the shell (A) comprises a central control screen (A1), a shell door (A2), a heat dissipation fan (A3) and a door handle (A4), wherein the central control screen (A1) is embedded on the upper surface of the shell door (A2), the heat dissipation fan (A3) is embedded on the lower surface of the shell door (A2), and the door handle (A4) is fixed on the opening and closing side of the shell door (A2);
the metering distribution mechanism (B) comprises a PLC control system (1), a first pressure gauge (2), a first flow sensor (3), a first electric execution ball valve (4), a second pressure gauge (5), a second flow sensor (6), a second electric execution ball valve (7), a mixer (8), a mixed working medium distributor (9), a third pressure gauge (10), a third flow sensor (11), an electromagnetic valve (12), a gas source processor (13), a compressed air distributor (14), a compressed air inlet (15), a compressed air drain outlet (16), a reducing agent inlet (17), a soft water inlet (18), a mixed working medium drain outlet (19), a first blow-down valve (20) and a second blow-down valve (21), wherein the PLC control system (1) is arranged at the upper part of the metering distribution mechanism (B) and is respectively connected with the electromagnetic valve (12), the first electric execution ball valve (4) and the second electric execution ball valve (7) in sequence, first electronic ball valve (4) one end of carrying out is connected with reductant entry (17) pan feeding pipe, the other end is connected with first flow sensor (3), the other end that first flow sensor (3) are connected is connected with first electronic ball valve (4) of carrying out, second manometer (5) one end is connected through the inlet pipe with soft water entry (18), the other end is connected with second flow sensor (6), the other end and the electronic ball valve (7) of carrying out of second flow sensor (6) are connected, first electronic ball valve (4) of carrying out and the electronic ball valve (7) of carrying out of second all are connected with blender (8), blender (8) the other end is connected with mixed working medium distributor (9), first blowoff valve (20) are through the sub-unit connection of blowdown pipeline with blender (8), second blowoff valve (21) and compressed air drain (16) sealing connection.
2. The metering and distributing device for denitration of boiler flue gas according to claim 1, characterized in that: the mixed working medium distributor (9) comprises a mixed working medium distributor (9) body, an adjustable float flowmeter (91) and a mixed working medium exhaust pipe (911), one end of the mixed working medium distributor (9) is connected with the adjustable float flowmeter (91), the other end of the mixed working medium distributor is connected with the mixer (8), and one end of the adjustable float flowmeter (91) is connected with the mixed working medium exhaust pipe (911) in a sealing mode.
3. The metering and distributing device for denitration of boiler flue gas according to claim 1, characterized in that: the compressed air distributor (14) comprises a compressed air distributor (14) body, a ball valve (141) and a high-energy exhaust pipe (142), wherein one end of the ball valve (141) is connected with the compressed air distributor (14), and the other end of the ball valve (141) is connected with the high-energy exhaust pipe (142) in a sealing mode.
4. The metering and distributing device for denitration of boiler flue gas according to claim 1, characterized in that: the input pipeline structures of the compressed air inlet (15), the reducing agent inlet (17) and the soft water inlet (18) are the same.
5. The metering and distributing device for denitration of boiler flue gas according to claim 1, characterized in that: the mixer (8) is directly connected with the mixed working medium distributor (9), and the pressure of each output pipeline is kept consistent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921637476.0U CN211635961U (en) | 2019-09-28 | 2019-09-28 | A measurement distributor for denitration of boiler flue gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921637476.0U CN211635961U (en) | 2019-09-28 | 2019-09-28 | A measurement distributor for denitration of boiler flue gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211635961U true CN211635961U (en) | 2020-10-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921637476.0U Active CN211635961U (en) | 2019-09-28 | 2019-09-28 | A measurement distributor for denitration of boiler flue gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211635961U (en) |
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2019
- 2019-09-28 CN CN201921637476.0U patent/CN211635961U/en active Active
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