CN210199049U - Exhaust temperature compensation device of CEMS (continuous emission monitoring System) online monitoring system - Google Patents
Exhaust temperature compensation device of CEMS (continuous emission monitoring System) online monitoring system Download PDFInfo
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- CN210199049U CN210199049U CN201920648653.9U CN201920648653U CN210199049U CN 210199049 U CN210199049 U CN 210199049U CN 201920648653 U CN201920648653 U CN 201920648653U CN 210199049 U CN210199049 U CN 210199049U
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Abstract
The utility model provides an exhaust temperature compensation device of CEMS on-line monitoring system, set up on the exhaust pipe way that sets up in the open air that communicates with the analysis appearance, exhaust temperature compensation device includes around establishing in the exhaust pipe way periphery the companion tropical and with the relay that accompanies the tropical and link to each other, one of them heart yearn of the arbitrary one end of companion tropical links to each other with industrial power supply; the other core wire is connected with one end of the relay, the other end of the relay is electrically connected with an industrial power supply, the exhaust temperature compensation device further comprises a temperature measuring element for measuring the temperature of the exhaust pipeline and a temperature controller for controlling the on-off of the relay, the temperature measuring element is connected with the temperature controller, and the temperature controller is electrically connected with a direct current 24V power supply. The utility model discloses can compensate exhaust pipe temperature according to setting for the temperature at any time, guarantee the normal work of analysis appearance, ensure the stability of measuring environmental protection data.
Description
Technical Field
The utility model relates to an environmental protection equipment field of thermal power production use is an exhaust temperature compensation arrangement for CEMS on-line monitoring system.
Background
CEMS is an abbreviation of English Continuous Emission Monitoring System, and is called as "automatic flue gas Monitoring System", also called as "Continuous flue gas Emission Monitoring System" or "on-line flue gas Monitoring System". CEMS on-line monitoring analytical equipment (SO)2、NOx、O2) The provided data is an important environmental protection index of the thermal power plant, and the measurement accuracy of the data not only determines whether the tail gas emission of the thermal power plant reaches the standard, but also influences the economical efficiency, energy conservation and consumption reduction of the ignition power plant.
The CEMS on-line monitoring system mainly comprises a sampling probe, a sampling pipeline, a condenser, a filter, a sampling pump, an ULTRAMAT 23 gas analyzer and the like. ULTRAMAT 23 gas analysis appearance sampling method adopts direct extraction formula heating method when gas analysis, and the flue gas passes through sampling probe, filters solid-state substance through the sampling probe filter, gets into electrical heating sampling pipeline, extracts to the analysis meter rack through the sampling pump, carries out rapid condensation to the sample gas through the condenser earlier behind the entering analysis cabinet and removes moisture, satisfies the requirement of analytical instrument to the sample gas, and the sample gas passes through the exhaust pipe after the analysis of analytical instrument, finally discharges through terminal gas vent.
Because the exhaust pipe of above-mentioned analysis appearance sets up outdoor more, if use in the place that temperature is on the low side, though the sample gas has passed through filter and condenser dewatering, when outside temperature is less than below zero, still can freeze at the gas vent department, and the exhaust pipe is not unblocked after freezing, and then leads to analysis appearance sample flow on the low side, unable normal measurement numerical value, influences environmental protection index.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a main objective lies in providing a CEMS on-line monitoring system's exhaust temperature compensation arrangement, and simple structure is easily used, can compensate exhaust pipe temperature according to setting for the temperature at any time, guarantees that the analysis appearance normally works, ensures the stability of measuring environmental protection data.
In order to achieve the above purpose, the technical proposal adopted by the utility model is that,
an exhaust temperature compensation device of a CEMS (continuous emission monitoring system) online monitoring system is arranged on an exhaust pipeline communicated with an analyzer and arranged outdoors, and comprises a heat tracing band wound on the periphery of the exhaust pipeline and a relay connected with the heat tracing band, wherein one core wire at any end of the heat tracing band is connected with an industrial power supply; the other core wire is connected with one end of a relay, the other end of the relay is electrically connected with an industrial power supply,
the exhaust temperature compensation device further comprises a temperature measuring element for measuring the temperature of the exhaust pipeline and a temperature controller for controlling the on-off of the relay, the temperature measuring element is connected with the temperature controller, and the temperature controller is electrically connected with a direct current 24V power supply.
The relay comprises a relay contact and a relay coil, wherein one of the relay contacts is connected with a core wire of the heat tracing band; the other is connected with an industrial power supply, and one end of the relay coil is connected with a temperature controller; the other end is connected with a direct current 24V power supply.
Wherein the relay is a solid state relay.
Wherein, the temperature measuring element is a temperature sensor, a thermal resistor or a thermocouple.
The heat tracing bands are arranged in a plurality of numbers, and the heat tracing bands are arranged in parallel. And the heat tracing bands are respectively and spirally wound and uniformly distributed on the periphery of the exhaust pipeline, so that the exhaust pipeline is ensured to be heated quickly and uniformly.
The utility model has the advantages that:
in the lower winter of temperature, use exhaust temperature compensation arrangement can make things convenient for quick intensification to exhaust pipe, keep exhaust pipe's smooth and easy, guarantee that the monitoring data of analysis appearance is accurate stable.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a block diagram of the exhaust temperature compensation device of the CEMS online monitoring system of the present invention.
Description of the reference numerals
1. The temperature measuring device comprises a temperature measuring element 2, a temperature controller 3, a relay coil 4, a direct current 24V power supply 5, a relay contact 6 and a heat tracing band.
Detailed Description
The technical solution in the embodiment of the present invention is clearly and completely described below with reference to the drawings in the embodiment of the present invention. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be implemented in other ways different from the specific details set forth herein, and one skilled in the art may similarly generalize the present invention without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.
An exhaust temperature compensation device of a CEMS on-line monitoring system is arranged on an exhaust pipeline which is communicated with an analyzer and arranged outdoors, and the structure of the exhaust temperature compensation device is shown in figure 1, and mainly comprises a heat tracing band 6, a relay, a temperature controller 2 and a temperature measuring element 1. The heat tracing band 6 is a heating element, the temperature measuring element 1 is used for measuring the real-time temperature of the exhaust pipeline, the temperature controller 2 judges whether the exhaust pipeline needs to be heated or not according to the set temperature, and the heating process is controlled by controlling the relay. The exhaust temperature compensation device further comprises an industrial power supply and a direct current 24V power supply 4, wherein the industrial power supply is used for supplying power for heating of the heat tracing band 6, and the direct current 24V power supply 4 is used for supplying power for the temperature controller 2.
The heat tracing band 6 is wound on the periphery of the exhaust pipeline, and one of two core wires at any end of the heat tracing band is electrically connected with an industrial power supply; the other is electrically connected with a relay. The other end of the heat tracing band is suspended to wrap the tail end or the tail end is connected with a tail end junction box. The heat tracing band 6 can be selected from the existing commercial general model, and in the embodiment, ZR65GWK 2-PF/ZR is selected. One or more heat tracing bands 6 can be arranged, and a plurality of heat tracing bands 6 are arranged in parallel and are respectively and electrically connected with the relay and the industrial power supply. Every companion tropical heliciform winding equipartition respectively is in exhaust pipe periphery to use the aluminium sticky tape to fix it to exhaust pipe on, when making the heating intensification, exhaust pipe's the even that is heated can heat up fast.
The relay is used for controlling the on-off of a circuit, the relay is a solid-state relay and comprises a relay contact 5 and a relay coil 3, the relay in the embodiment adopts G3 NB-220B-1, and one of the relay contacts 5 is electrically connected with the heat tracing band; and the other is connected to an industrial power supply. One end of the relay coil 3 is electrically connected with the temperature controller 2; and the other end is connected with a direct current 24V power supply 4.
The temperature controller 2 can be selected from the existing commercially available models, and NPTJ-216 FK is selected in the embodiment. One end of the temperature controller 2 is connected with a direct current 24V power supply 4; and the other end of the relay coil 3 is connected. In addition, the temperature controller 2 is also electrically or wirelessly connected with the temperature measuring element 1.
The temperature measuring element 1 is attached to the periphery of the exhaust pipeline, and accuracy of measured data is guaranteed. The temperature measuring element 1 is a temperature sensor, a thermal resistor or a thermocouple, and in the embodiment, WZPM-201 is selected. The temperature measuring element 1 is connected with the temperature controller 2 and transmits the measured temperature data.
Above-mentioned each component has constituteed the utility model discloses two required return circuits of working process: a heating loop and a temperature control loop. The heating loop consists of a heat tracing band 6, a relay contact 5 and an industrial power supply; the temperature control loop is composed of a temperature measuring element 1, a temperature controller 2, a relay coil 3 and a direct current 24V power supply 4.
The utility model discloses a theory of operation is:
the temperature control loop measures the temperature, judges whether to heat and controls the working condition of the heating loop.
The real-time temperature of the outdoor exhaust pipeline is measured by the temperature measuring element 1, and the temperature signal is transmitted to the temperature controller 2. When the temperature of the exhaust pipeline is lower than the set temperature, the temperature controller 2 controls the relay contact 5 to be closed, the heating loop is switched on, the temperature of the outdoor exhaust pipeline is raised, the exhaust position of the exhaust pipeline is smooth and is not frozen, and the analyzer can normally measure the numerical value. Under the condition that the temperature measuring element 1 measures the temperature rise of the exhaust pipeline, a feedback signal is sent to the temperature controller 2, and the temperature controller 2 controls and disconnects the heating loop, so that the pipeline is prevented from overheating, and energy is saved. Use the utility model discloses, can carry out temperature compensation to outdoor exhaust pipe temperature according to the settlement temperature at any time, guarantee that the analysis appearance normally works, strengthened the stability of measuring environmental protection data.
The foregoing description is only of the preferred embodiments of the present invention, and it should be understood that the described embodiments are only some embodiments of the present invention, and 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.
Claims (6)
1. The utility model provides a CEMS on-line monitoring system's exhaust temperature compensation arrangement, sets up on setting up on outdoor blast pipe way with the analysis appearance intercommunication which characterized in that: the exhaust temperature compensation device comprises a heat tracing band wound on the periphery of the exhaust pipeline and a relay connected with the heat tracing band, wherein one core wire at any end of the heat tracing band is connected with an industrial power supply; the other core wire is connected with one end of a relay, the other end of the relay is electrically connected with an industrial power supply,
the exhaust temperature compensation device further comprises a temperature measuring element for measuring the temperature of the exhaust pipeline and a temperature controller for controlling the on-off of the relay, the temperature measuring element is connected with the temperature controller, and the temperature controller is electrically connected with a direct current 24V power supply.
2. An exhaust temperature compensation apparatus for a CEMS on-line monitoring system as claimed in claim 1, wherein: the relay comprises relay contacts and a relay coil, wherein one of the relay contacts is connected with a core wire of the heat tracing band; the other is connected with an industrial power supply, and one end of the relay coil is connected with a temperature controller; the other end is connected with a direct current 24V power supply.
3. An exhaust temperature compensation apparatus for a CEMS on-line monitoring system as claimed in claim 2, wherein: the relay is a solid state relay.
4. An exhaust temperature compensation apparatus for a CEMS on-line monitoring system as claimed in claim 1, wherein: the temperature measuring element is a temperature sensor, a thermal resistor or a thermocouple.
5. An exhaust temperature compensation apparatus for a CEMS on-line monitoring system as claimed in claim 1, wherein: the heat tracing bands are arranged in a plurality of numbers, and the heat tracing bands are arranged in parallel.
6. An exhaust temperature compensation apparatus for a CEMS on-line monitoring system as claimed in claim 5 wherein: the heat tracing bands are respectively spirally wound and uniformly distributed on the periphery of the exhaust pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920648653.9U CN210199049U (en) | 2019-05-07 | 2019-05-07 | Exhaust temperature compensation device of CEMS (continuous emission monitoring System) online monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920648653.9U CN210199049U (en) | 2019-05-07 | 2019-05-07 | Exhaust temperature compensation device of CEMS (continuous emission monitoring System) online monitoring system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210199049U true CN210199049U (en) | 2020-03-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920648653.9U Active CN210199049U (en) | 2019-05-07 | 2019-05-07 | Exhaust temperature compensation device of CEMS (continuous emission monitoring System) online monitoring system |
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| Country | Link |
|---|---|
| CN (1) | CN210199049U (en) |
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2019
- 2019-05-07 CN CN201920648653.9U patent/CN210199049U/en active Active
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