CN205323537U - Nitrogen oxide waste gas treatment system - Google Patents
Nitrogen oxide waste gas treatment system Download PDFInfo
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- CN205323537U CN205323537U CN201521137821.6U CN201521137821U CN205323537U CN 205323537 U CN205323537 U CN 205323537U CN 201521137821 U CN201521137821 U CN 201521137821U CN 205323537 U CN205323537 U CN 205323537U
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- controller
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Abstract
The utility model provides a nitrogen oxide waste gas treatment system, first pipeline, catalysis bed and second pipeline including the level is connected in order extend the consistency transmitter, nozzle, the temperature sensor that go into first pipeline, extend the 2nd consistency transmitter, the 2nd temperature sensor that go into the second pipeline, connect the urea bucket and the measuring pump of nozzle, the controller, a consistency transmitter, a temperature sensor, the 2nd consistency transmitter, the 2nd temperature sensor, measuring pump and catalysis bed be connection director respectively, and the urea bucket passes through the pipeline and is connected with the nozzle. Through the 2nd consistency transmitter and the 2nd temperature sensor gaseous concentration of nitrogen oxide in can real -time detection second pipeline, through the real -time send instruction of controller to measuring pump and catalysis bed to the adjustment urea solution's that the nozzle sprayed injection quantity has been realized having improved degree of automation to the high -efficient innocent treatment of nitrogen oxide waste gas, and has been realized the accuracy control of urea quantity.
Description
Technical field
This utility model relates to enamelling machine technical field, particularly relates to a kind of matching used a kind of nitrous oxides exhaust gas process system of institute in enamelling machine。
Background technology
Enamelling machine is a kind of equipment that wire is processed into enamel-covered wire, and enamel-covered wire is made up of the insulating barrier of internal wire and parcel wire。Current insulating barrier generally includes acetal layer, polyester layer, layer of polyurethane, polyimide layer。Wire needs to dry in an oven after being coated with insulating layer coating, so that insulating barrier is solidificated in conductive line surfaces reliably。Baking oven, in drying course, can produce the harmful gas containing nitrogen oxides, and direct discharge can cause environmental pollution, it is therefore desirable to carries out harmless treatment to produced in enamel-covered wire drying course containing nitrous oxides exhaust gas。
At present, generally adopt carrying out harmless treatment containing nitrous oxides exhaust gas oxides of nitrogen gas and carbamide heats in catalytic bed realization reaction, by nitrogen oxides and carbamide combined effect, nitrogen oxides to be resolved into nitrogen and water。
Chinese invention patent application (publication number CN105080336A) discloses " a kind of enamel-covered wire emission-control equipment ", it includes cylindricality reactor, exhaust gas entrance it is provided with bottom reactor, electrothermal tube, a fresh gas entrance and a heat exchanger it is sequentially provided with above exhaust gas entrance, a number heat exchanger is arranged over catalyst baffle plate, and reactor top is provided with waste gas outlet。But, it is relatively low to there is automaticity in the enamel-covered wire emission-control equipment of this structure, to being detected by the concentration of the nitrous oxides exhaust gas in the waste gas of catalytic plate and cannot detect according to the oxides of nitrogen gas concentration flowed out in catalytic plate gas, and the input quantity of carbamide is carried out adapt, thus causing that the treatment effect of nitrous oxides exhaust gas is not good, and cause the waste of carbamide。
In view of this, it is necessary to of the prior art for nitrous oxides exhaust gas process system produced in Production of Enamel Wires process is improved, to solve the problems referred to above。
Utility model content
The purpose of this utility model is in that open a kind of nitrous oxides exhaust gas processes system, processes in order to realize the effective, harmlessization to nitrous oxides exhaust gas, improves automaticity, and the precision realizing amount of urea controls。
For achieving the above object, this utility model provides a kind of nitrous oxides exhaust gas and processes system, including: the first pipeline, catalytic bed and the second pipe that level is sequentially connected with, extend into the first concentration sensor of the first pipeline, nozzle, the first temperature sensor, extend into the second concentration sensor of second pipe, the second temperature sensor, connect carbamide bucket and the dosing pump of nozzle and controller；Described first concentration sensor, the first temperature sensor, the second concentration sensor, the second temperature sensor, dosing pump and catalytic bed connect controller respectively, and described carbamide bucket is connected with nozzle by pipeline。
In some embodiments, the first concentration display it is provided with between the first concentration sensor and controller。
In some embodiments, the first temperature indicator it is provided with between the first temperature sensor and controller。
In some embodiments, the second concentration display it is provided with between the second concentration sensor and controller。
In some embodiments, the second temperature indicator it is provided with between the second temperature sensor and controller。
In some embodiments, flow indicator it is additionally provided with between dosing pump and controller。
In some embodiments, controller is programmable logic controller (PLC) or microprocessor。
In some embodiments, nozzle is Radix Rumicis Fan-shaped Spray Atomizer。
In some embodiments, dosing pump is diaphragm metering pump。
Compared with prior art, the beneficial effects of the utility model are: in this utility model, the concentration of the oxides of nitrogen gas detected in second pipe that can be real-time by the second concentration sensor and the second temperature sensor, dosing pump and catalytic bed is sent a command in real time by controller, to adjust the emitted dose of the urea liquid that nozzle sprays, it is achieved thereby that the effective, harmlessization of nitrous oxides exhaust gas is processed, improve automaticity, and achieve the precision to amount of urea and control。
Accompanying drawing explanation
Fig. 1 is the schematic diagram that a kind of nitrous oxides exhaust gas of this utility model processes system。
Detailed description of the invention
Below in conjunction with each embodiment shown in the drawings, this utility model is described in detail; but it should what illustrate is; these embodiments are not limitation of the utility model; those of ordinary skill in the art, according to the equivalent transformation in these embodiment institute work energy, method or structure or replacement, belong within protection domain of the present utility model。
Please join a kind of nitrous oxides exhaust gas of this utility model illustrated in fig. 1 and process a kind of detailed description of the invention of system。In the present embodiment, a kind of nitrous oxides exhaust gas processes system, including: the first pipeline 1, catalytic bed 2 and the second pipe 3 that level is sequentially connected with, extend into the first concentration sensor 31 of the first pipeline 1, nozzle the 43, first temperature sensor 51, extend into second concentration sensor the 61, second temperature sensor 71 of second pipe 3, connect carbamide bucket 42 and the dosing pump 41 of nozzle 43 and controller 8。
First concentration sensor the 31, first temperature sensor the 51, second concentration sensor the 61, second temperature sensor 71, dosing pump 41 and catalytic bed 2 connect controller 8 respectively。Carbamide bucket 42 is connected with nozzle 43 by pipeline 421。Concrete, nozzle 43 is Radix Rumicis Fan-shaped Spray Atomizer, and dosing pump 41 is diaphragm metering pump, and controller 8 is programmable logic controller (PLC) or microprocessor。In the present embodiment, for controller 8 for describing in detail by braiding logic controller。Programmable logic controller (PLC) (PLC) adopts the CPM1A-10 type PLC of Omron Corp。
Carbamide bucket 42 is contained with the urea liquid setting concentration。Concrete, the urea concentration held in this carbamide bucket 42 is 20% (percentage by weight)。The water smoke that the pipeline 421 that carbamide bucket 42 is made by the rustless steel that internal diameter is 5 centimetres contains urea liquid by nozzle 43 to injection in the first pipeline 1。
This first pipeline 1 connects power waste discharge blower fan (not shown) by flange 101, so that the waste gas containing nitrogen oxides to be delivered to the first pipeline 1。Second pipe 3 is connected with steam generator (not shown) by flange 102。
In the present embodiment, the Pressure, Concentration, Temperature of the nitrous oxides exhaust gas in the first pipeline 1 can be detected by this first concentration sensor 31 and the first temperature sensor 51, and respectively through data connecting line 311 and data connecting line 511, the data collected are sent to controller 8。In order to show the Pressure, Concentration, Temperature of the nitrous oxides exhaust gas in the first pipeline 1 intuitively, in the present embodiment, first concentration display 32 can be set between this first concentration sensor 31 and controller 8, and the first temperature indicator 5 is set between the first temperature sensor 51 and controller 8。
Simultaneously, in order to show the concentration of oxides of nitrogen gas in the interior gas after catalytic bed 2 processes of second pipe 3 intuitively, in the present embodiment, can the second concentration display 6 be set between the second concentration sensor 61 and controller 8, the second temperature indicator 7 is set between the second temperature sensor 71 and controller 8。Flow indicator 4 it is additionally provided with between dosing pump 41 and controller 8。Dosing pump 41 controls the flow of the urea liquid pumped in the first pipeline 1 in carbamide bucket 42 by pipeline 421。This dosing pump 41 realizes communication by data connecting line 412 with controller 8 and is connected；Meanwhile, for the pump output of urea liquid in real-time display carbamide bucket 42, in the present embodiment, this dosing pump 41 connects a flow indicator 4 also by data connecting line 411, and flow indicator 4 communicates again through data connecting line 411 and controller 8。
In the present embodiment, this catalytic bed 2 is provided with packed tower and heat exchanger or heating rod, packed tower is placed catalyst。By the catalytic action of catalyst, and there is chemical reaction in oxides of nitrogen gas and carbamide, generate nitrogen and steam in catalytic bed 2 in the heating environment of heat exchanger or heating rod。Concrete, the catalyst placed in this catalytic bed 2 selects granularity to be nano level aluminium sesquioxide or titanium dioxide fine particles。In the reacted gas of catalytic bed 2, by second pipe 3, the nitrogen of environmental sound after processing and steam are delivered to steam generator。
If during the temperature range that the temperature departure existed in second pipe 3 in the nitrous oxides exhaust gas or catalytic bed 2 that a small amount of unreacted decomposes sets, the second concentration sensor 61 in second pipe 3 and the second temperature sensor 71 can detect that oxides of nitrogen gas and the gas temperature of residual, and detection data shown in the second concentration display 6 and the second temperature indicator 7 by data connecting line 611 and data connecting line 711, and send detection data to controller 8。After controller 8 receives detection data, in adaptability adjustment catalytic bed 2, the input voltage of heat exchanger or heating rod is to adjust the reaction temperature in catalytic bed 2, and send corresponding control instruction to by data connecting line 412 to dosing pump 41, with increase or reduce by carbamide bucket 42 by the pipeline 421 flow to the urea liquid pumped in the first pipeline 1, thus one PID closed loop automatic control system of form。Thus while ensure that and can't detect nitrous oxides exhaust gas in second pipe 3, reduce the electric power effect in the consumption of urea liquid and catalytic bed 2, there is good economic effect；Simultaneously, it is achieved that this nitrous oxides exhaust gas processes the automaticity of system, and need not artificially remove to adjust the flow of urea liquid in carbamide bucket 42, and reduces the energy consumption of the heat exchanger in catalytic bed 2 or heating rod。
The a series of detailed description of those listed above is only for illustrating of feasibility embodiment of the present utility model; they are also not used to limit protection domain of the present utility model, all should be included within protection domain of the present utility model without departing from this utility model skill equivalent implementations of making of spirit or change。
In addition, it is to be understood that, although this specification is been described by according to embodiment, but not each embodiment only comprises an independent technical scheme, this narrating mode of description is only for clarity sake, description should be made as a whole by those skilled in the art, and the technical scheme in each embodiment through appropriately combined, can also form other embodiments that it will be appreciated by those skilled in the art that。
Claims (9)
1. a nitrous oxides exhaust gas processes system, it is characterized in that, including: the first pipeline (1), catalytic bed (2) and the second pipe (3) that level is sequentially connected with, extend into first concentration sensor (31) of the first pipeline (1), nozzle (43), the first temperature sensor (51), extend into second concentration sensor (61) of second pipe (3), the second temperature sensor (71), connect carbamide bucket (42) and the dosing pump (41) of nozzle (43) and controller (8)；Described first concentration sensor (31), the first temperature sensor (51), the second concentration sensor (61), the second temperature sensor (71), dosing pump (41) and catalytic bed (2) connect controller (8) respectively, and described carbamide bucket (42) is connected with nozzle (43) by pipeline (421)。
2. nitrous oxides exhaust gas according to claim 1 processes system, it is characterised in that be provided with the first concentration display (32) between described first concentration sensor (31) and controller (8)。
3. nitrous oxides exhaust gas according to claim 1 processes system, it is characterised in that be provided with the first temperature indicator (5) between described first temperature sensor (51) and controller (8)。
4. nitrous oxides exhaust gas according to claim 1 processes system, it is characterised in that be provided with the second concentration display (6) between described second concentration sensor (61) and controller (8)。
5. nitrous oxides exhaust gas according to claim 1 processes system, it is characterised in that be provided with the second temperature indicator (7) between described second temperature sensor (71) and controller (8)。
6. nitrous oxides exhaust gas according to claim 1 processes system, it is characterised in that be additionally provided with flow indicator (4) between described dosing pump (41) and controller (8)。
7. nitrous oxides exhaust gas according to any one of claim 1 to 6 processes system, it is characterised in that described controller (8) is programmable logic controller (PLC) or microprocessor。
8. nitrous oxides exhaust gas according to claim 7 processes system, it is characterised in that described nozzle (43) is Radix Rumicis Fan-shaped Spray Atomizer。
9. nitrous oxides exhaust gas according to claim 1 processes system, it is characterised in that described dosing pump (41) is diaphragm metering pump。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521137821.6U CN205323537U (en) | 2015-12-31 | 2015-12-31 | Nitrogen oxide waste gas treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521137821.6U CN205323537U (en) | 2015-12-31 | 2015-12-31 | Nitrogen oxide waste gas treatment system |
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| Publication Number | Publication Date |
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| CN205323537U true CN205323537U (en) | 2016-06-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201521137821.6U Active CN205323537U (en) | 2015-12-31 | 2015-12-31 | Nitrogen oxide waste gas treatment system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112946122A (en) * | 2021-01-28 | 2021-06-11 | 中国科学院生态环境研究中心 | Method for detecting nitrogen oxide in high-purity gas |
| CN115105948A (en) * | 2022-05-23 | 2022-09-27 | 中国环境科学研究院 | Process for removing nitrogen oxides in low-temperature waste gas |
-
2015
- 2015-12-31 CN CN201521137821.6U patent/CN205323537U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112946122A (en) * | 2021-01-28 | 2021-06-11 | 中国科学院生态环境研究中心 | Method for detecting nitrogen oxide in high-purity gas |
| CN115105948A (en) * | 2022-05-23 | 2022-09-27 | 中国环境科学研究院 | Process for removing nitrogen oxides in low-temperature waste gas |
| CN115105948B (en) * | 2022-05-23 | 2023-09-26 | 中国环境科学研究院 | Process for removing nitrogen oxides in low-temperature waste gas |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 582 Xitai Road, Xinwu District, Wuxi City, Jiangsu Province Patentee after: Wuxi Juyi Tongchuang Technology Co.,Ltd. Address before: 214000 11-1-88, Jinshan fourth branch road, Beitang District, Wuxi City, Jiangsu Province (in Wuxi photoelectric new material science and Technology Park) Patentee before: WUXI JUYI TONGCHUANG TECHNOLOGY Co.,Ltd. |
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| CP03 | Change of name, title or address |