CN109012069A - A kind of reducing agent conveying device - Google Patents
A kind of reducing agent conveying device Download PDFInfo
- Publication number
- CN109012069A CN109012069A CN201710645722.6A CN201710645722A CN109012069A CN 109012069 A CN109012069 A CN 109012069A CN 201710645722 A CN201710645722 A CN 201710645722A CN 109012069 A CN109012069 A CN 109012069A
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- Prior art keywords
- pump
- forcing
- force
- reducing agent
- control valve
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
- B01D53/50—Sulfur oxides
- B01D53/501—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound
- B01D53/504—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound characterised by a specific device
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/77—Liquid phase processes
- B01D53/79—Injecting reactants
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/8621—Removing nitrogen compounds
- B01D53/8625—Nitrogen oxides
- B01D53/8631—Processes characterised by a specific device
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/90—Injecting reactants
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/20—Reductants
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/20—Reductants
- B01D2251/206—Ammonium compounds
- B01D2251/2062—Ammonia
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/20—Reductants
- B01D2251/206—Ammonium compounds
- B01D2251/2067—Urea
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Pipeline Systems (AREA)
Abstract
The invention discloses a kind of reducing agent conveying devices, it is related to denitrating flue gas conveying equipment technical field, cabinet upper end side is provided with the first oil immersion pressure gauge and the second oil immersion pressure gauge, box house, which is arranged side by side, the first force (forcing) pump and the second force (forcing) pump, it is connect at reducing agent inlet pipe and the feed inlet of the first force (forcing) pump, the discharge outlet of first force (forcing) pump is connect with reducing agent outlet pipe, the discharge outlet of second force (forcing) pump is connect with dilution water outlet pipe, first Back pressure control valve is installed between reducing agent inlet pipe and reducing agent outlet pipe at the feed inlet and outlet of the first force (forcing) pump, second Back pressure control valve is installed between dilution water inlet pipe and dilution water outlet pipe at the feed inlet and outlet of the second force (forcing) pump, pump group into, install a set of Back pressure control valve between outlet conduit additional, primary Ioops are formed therewith；Any of its system only can need to be arbitrarily adjusted according to the actual use operating condition of equipment by adjusting counterbalance valve and uses pressure, when being without the use of dilution water for certain engineerings, two pump groups can switch use at any time, reach the function of the using and the reserved, easy to operate, use scope is wide.
Description
Technical field
The present invention relates to denitrating flue gas conveying equipment technical field, specially a kind of reducing agent conveying device.
Background technique
As nitrogen oxides DS NOx Est amount is continuously increased, Acid Rain Pollution from sulfuric acid type to the compound transformation of sulfonitric,
City atmospheric environment situation is still severe.With the promotion of China's expanding economy and environmental standard, gas denitrifying technology will be
China's thermoelectricity, consumer waste incineration and cement industry are used widely.The gas denitrifying technology of mainstream mainly has selection at present
Property catalysis reduction (SCR), selective non-catalytic reduction method (SNCR), low-NO_x combustion technology.Selective non-catalytic reduction method
(Selective Non-Catalytic Reduction, abbreviation SNCR) denitrating technique, is not have catalyst existence condition
Under, the reducing agents such as NH3, urea are sprayed into Boiler Furnace and carry out selective reaction with NOX, do not have to catalyst, by the nitrogen in flue gas
Oxide is reduced to a kind of method of denitration of harmless nitrogen and water.Therefore reducing agent must be added in high-temperature region.Reducing agent spray
Enter the region that fire box temperature is 850~1100 DEG C, rapid thermal decomposition reacts with the NOX in flue gas at NH3 and generates N2 and H2O.It should
Technology is using various industrial furnaces as reactor.The basic chemical equation of SNCR denitration technique is as follows: NH3 is the reaction of reducing agent
Formula are as follows: (4NO+4NH3+O2→4N2+6H2O, 4NO2+2NH3+O2→3N2+6H2O), urea is the reaction equation of reducing agent are as follows: (2NO+
CO(NH2)3+1/2.O2-2N2+CO2+2H2O) SNRS denitration technology is applied can reach 40%~50% on industrial furnace
NOX removal efficiency, existing SNCR denitration system generally comprise prepare storage module, reducing agent conveyor module, metering dilution module,
Distribution module, jet module, stove.Existing reducing agent conveyor module can only be operated under single operating condition, cannot basis
It needs to arbitrarily switch under different operating conditions, and this set equipment can't arbitrarily adjust any use of its system according to operating condition
Pressure, therefore use scope is narrow, has certain limitation.
Summary of the invention
The purpose of the present invention is to provide a kind of reducing agent conveying devices, to solve mentioned above in the background art ask
Topic.
To achieve the above object, the invention provides the following technical scheme: a kind of reducing agent conveying device, it include cabinet 1,
Backboard 1-1, thermovent 1-2, pedestal 2, the first force (forcing) pump 3, the second force (forcing) pump 3-1, the first Back pressure control valve 4, the second back pressure control
Valve 4-1 processed, the first oil immersion pressure gauge 5, the second oil immersion pressure gauge 5-1, reducing agent inlet pipe 6, dilution water inlet pipe 7, reducing agent outlet pipe
8, dilution water outlet pipe 9, the first evacuated tube 10 and the second evacuated tube 10-1, the 1 upper end side of cabinet is provided with the first oil immersion
Pressure gauge 5 and the second oil immersion pressure gauge 5-1, being arranged side by side inside the cabinet 1 has the first force (forcing) pump 3 and the second force (forcing) pump 3-
1, connect at the reducing agent inlet pipe 6 and the feed inlet of the first force (forcing) pump 3, the discharge outlet of first force (forcing) pump 3 with
Reducing agent outlet pipe 8 connects, and connect at the dilution water inlet pipe 7 and the feed inlet of the second force (forcing) pump 3-1, second pressurization
The discharge outlet of pump 3-1 is connect with dilution water outlet pipe 9, and reducing agent inlet pipe 6 and reducing agent go out at the feed inlet and outlet of the first force (forcing) pump 3
First Back pressure control valve 4 is installed, dilution water inlet pipe 7 and dilution water outlet pipe at the feed inlet and outlet of the second force (forcing) pump 3-1 between pipe 8
Second Back pressure control valve 4-1 is installed, and the discharge end of first force (forcing) pump 3 is provided with threeway, the first force (forcing) pump between 9
3 are connect with the first evacuated tube 10 and the first oil immersion pressure gauge 5 respectively by threeway, the discharge end of the second force (forcing) pump 3-1
It is provided with threeway, the second force (forcing) pump 3-1 is connect with the second evacuated tube 10-1 and the second oil immersion pressure gauge 5-1 respectively by threeway.
Preferably, the pipeline between the feed inlet and outlet and the first Back pressure control valve 4 of first force (forcing) pump 3 forms one
Circuit, the pipeline between the feed inlet and outlet and the second Back pressure control valve 4-1 of the second force (forcing) pump 3-1 form a circuit.
Preferably, several thermovent 1-2 are distributed on the backboard 1-1 of the cabinet 1, and the backboard 1-1 with
Molding is integrally machined between thermovent 1-2.
Compared with prior art, the beneficial effects of the present invention are: installing a set of back pressure control additional between pump group import and export pipeline
Valve processed, forms primary Ioops therewith；Only its system can need to be arbitrarily adjusted according to the actual use operating condition of equipment by counterbalance valve
Pressure is arbitrarily used, makes " pump group module " under continuous duty, remains whole system pipeline in a constant work
Make in pressure limit.When being without the use of dilution water for certain engineerings, two pump groups can switch use at any time, reach the using and the reserved use
Function, easy to operate, use scope is wide.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is schematic diagram of internal structure of the invention；
Fig. 3 is pipeline theory structure schematic diagram of the invention.
Appended drawing reference: cabinet 1, backboard 1-1, thermovent 1-2, pedestal 2, the first force (forcing) pump 3, the second force (forcing) pump 3-1, first
Back pressure control valve 4, the second Back pressure control valve 4-1, the first oil immersion pressure gauge 5, the second oil immersion pressure gauge 5-1, reducing agent inlet pipe 6,
Dilution water inlet pipe 7, reducing agent outlet pipe 8, dilution water outlet pipe 9, the first evacuated tube 10, the second evacuated tube 10-1.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiment is only a position embodiment of the invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Please refer to Fig. 1-3, the present invention provides a kind of technical solution: a kind of reducing agent conveying device, it includes cabinet 1, back
Plate 1-1, thermovent 1-2, pedestal 2, the first force (forcing) pump 3, the second force (forcing) pump 3-1, the first Back pressure control valve 4, the control of the second back pressure
Valve 4-1, the first oil immersion pressure gauge 5, the second oil immersion pressure gauge 5-1, reducing agent inlet pipe 6, dilution water inlet pipe 7, reducing agent outlet pipe 8,
Dilution water outlet pipe 9, the first evacuated tube 10 and the second evacuated tube 10-1, the 1 upper end side of cabinet is provided with the first oil immersion pressure
Power table 5 and the second oil immersion pressure gauge 5-1, being arranged side by side inside the cabinet 1 has the first force (forcing) pump 3 and the second force (forcing) pump 3-1,
Connect at the reducing agent inlet pipe 6 and the feed inlet of the first force (forcing) pump 3, the discharge outlet of first force (forcing) pump 3 with also
Former agent outlet pipe 8 connects, and connect at the dilution water inlet pipe 7 and the feed inlet of the second force (forcing) pump 3-1, second force (forcing) pump
The discharge outlet of 3-1 is connect with dilution water outlet pipe 9, reducing agent inlet pipe 6 and reducing agent outlet pipe at the feed inlet and outlet of the first force (forcing) pump 3
First Back pressure control valve 4 is installed, dilution water inlet pipe 7 and dilution water outlet pipe 9 at the feed inlet and outlet of the second force (forcing) pump 3-1 between 8
Between the second Back pressure control valve 4-1 is installed, and the discharge end of first force (forcing) pump 3 is provided with threeway, the first force (forcing) pump 3
It is connect respectively with the first evacuated tube 10 and the first oil immersion pressure gauge 5 by threeway, the discharge end of the second force (forcing) pump 3-1 is set
It is equipped with threeway, the second force (forcing) pump 3-1 is connect with the second evacuated tube 10-1 and the second oil immersion pressure gauge 5-1 respectively by threeway.
Wherein, the pipeline between the feed inlet and outlet and the first Back pressure control valve 4 of first force (forcing) pump 3 is formed one time
Road, the pipeline between the feed inlet and outlet and the second Back pressure control valve 4-1 of the second force (forcing) pump 3-1 form a circuit；Institute
Several thermovent 1-2 are distributed on the backboard 1-1 for the cabinet 1 stated, and integrally add between the backboard 1-1 and thermovent 1-2
Work molding.
The working principle of the present embodiment is as follows: between the feed inlet and outlet of the first force (forcing) pump 3 and the first Back pressure control valve 4
Pipeline formed primary Ioops, the pipeline shape between the feed inlet and outlet and the second Back pressure control valve 4-1 of the second force (forcing) pump 3-1
It, can be according to the actual use work of equipment by adjusting the first Back pressure control valve 4 and the second Back pressure control valve 4-1 at a circuit
Condition arbitrarily adjusts any using pressure of its system, makes pump group module under continuous duty, remains whole system pipe
In Lu Yi constant working pressure ranges, and when engineering is without the use of dilution water, dilution water inlet pipe 7, second is added
Press pump 3-1 and the closing of dilution water outlet pipe 9 become spare duct.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (4)
1. a kind of reducing agent conveying device, it is characterised in that: it includes cabinet (1), backboard (1-1), thermovent (1-2), pedestal
(2), the first force (forcing) pump (3), the second force (forcing) pump (3-1), the first Back pressure control valve (4), the second Back pressure control valve (4-1), first
Oil immersion pressure gauge (5), the second oil immersion pressure gauge (5-1), reducing agent inlet pipe (6), dilution water inlet pipe (7), reducing agent outlet pipe (8),
Dilution water outlet pipe (9), the first evacuated tube (10) and the second evacuated tube (10-1), the cabinet (1) lower end are provided with pedestal
(2), the cabinet (1) upper end side is provided with the first oil immersion pressure gauge (5) and the second oil immersion pressure gauge (5-1), described
Being arranged side by side inside cabinet (1) has the first force (forcing) pump (3) and the second force (forcing) pump (3-1), the reducing agent inlet pipe (6) and first
It is connected at the feed inlet of force (forcing) pump (3), the discharge outlet of first force (forcing) pump (3) is connect with reducing agent outlet pipe (8), described
Dilution water inlet pipe (7) and the feed inlet of the second force (forcing) pump (3-1) at connect, the discharge port of second force (forcing) pump (3-1)
Place is connect with dilution water outlet pipe (9), at the feed inlet and outlet of the first force (forcing) pump (3) reducing agent inlet pipe (6) and reducing agent outlet pipe (8) it
Between be equipped with the first Back pressure control valve (4), dilution water inlet pipe (7) and dilution water go out at the feed inlet and outlet of the second force (forcing) pump (3-1)
It is equipped with the second Back pressure control valve (4-1) between pipe (9), and the discharge end of first force (forcing) pump (3) is provided with threeway, the
One force (forcing) pump (3) is connect with the first evacuated tube (10) and the first oil immersion pressure gauge (5) respectively by threeway, second pressurization
The discharge end of pump (3-1) is provided with threeway, the second force (forcing) pump (3-1) by threeway respectively with the second evacuated tube (10-1) and second
Oil immersion pressure gauge (5-1) connection.
2. a kind of reducing agent conveying device according to claim 1, it is characterised in that: first force (forcing) pump (3)
Pipeline between feed inlet and outlet and the first Back pressure control valve (4) forms primary Ioops, the input and output material of second force (forcing) pump (3-1)
Pipeline between mouth and the second Back pressure control valve (4-1) forms a circuit.
3. a kind of reducing agent conveying device according to claim 1, it is characterised in that: the backboard (1- of the cabinet (1)
1) it is distributed on several thermovents (1-2), and is integrally machined molding between the backboard (1-1) and thermovent (1-2).
4. a kind of reducing agent conveying device according to claim 1, it is characterised in that: the reducing agent conveying device
Working principle are as follows: the pipeline between the feed inlet and outlet and the first Back pressure control valve (4) of the first force (forcing) pump (3) forms primary Ioops, institute
Pipeline between the feed inlet and outlet and the second Back pressure control valve (4-1) of the second force (forcing) pump (3-1) stated forms a circuit, passes through
Adjusting the first Back pressure control valve (4) and the second Back pressure control valve (4-1) can arbitrarily adjust according to the actual use operating condition of equipment
Any of its system uses pressure, makes pump group module under continuous duty, remains whole system pipeline in a perseverance
In fixed working pressure range, and when engineering is without the use of dilution water, by dilution water inlet pipe (7), the second force (forcing) pump (3-1)
Closing with dilution water outlet pipe (9) becomes spare duct.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710645722.6A CN109012069A (en) | 2017-08-01 | 2017-08-01 | A kind of reducing agent conveying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710645722.6A CN109012069A (en) | 2017-08-01 | 2017-08-01 | A kind of reducing agent conveying device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109012069A true CN109012069A (en) | 2018-12-18 |
Family
ID=64630249
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710645722.6A Pending CN109012069A (en) | 2017-08-01 | 2017-08-01 | A kind of reducing agent conveying device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109012069A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4559963A (en) * | 1983-05-02 | 1985-12-24 | House Food Industrial Company Limited | System for feeding liquid substances |
| CN102235368A (en) * | 2010-05-06 | 2011-11-09 | 张全武 | Automatic pressurizing water pump for tap water |
| CN205154531U (en) * | 2015-11-10 | 2016-04-13 | 上海力皇环保工程有限公司 | SNCR flue gas denitration system pump station device |
| CN106170604A (en) * | 2014-11-19 | 2016-11-30 | 瑟瑞恩派特石油代理服务有限公司 | Mechanical-hydraulic pumping unit including integrated heat spreader |
-
2017
- 2017-08-01 CN CN201710645722.6A patent/CN109012069A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4559963A (en) * | 1983-05-02 | 1985-12-24 | House Food Industrial Company Limited | System for feeding liquid substances |
| CN102235368A (en) * | 2010-05-06 | 2011-11-09 | 张全武 | Automatic pressurizing water pump for tap water |
| CN106170604A (en) * | 2014-11-19 | 2016-11-30 | 瑟瑞恩派特石油代理服务有限公司 | Mechanical-hydraulic pumping unit including integrated heat spreader |
| CN205154531U (en) * | 2015-11-10 | 2016-04-13 | 上海力皇环保工程有限公司 | SNCR flue gas denitration system pump station device |
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Application publication date: 20181218 |