CN207181388U - A kind of flue gas analysis device - Google Patents
A kind of flue gas analysis device Download PDFInfo
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- CN207181388U CN207181388U CN201721286390.9U CN201721286390U CN207181388U CN 207181388 U CN207181388 U CN 207181388U CN 201721286390 U CN201721286390 U CN 201721286390U CN 207181388 U CN207181388 U CN 207181388U
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Abstract
The utility model discloses a kind of flue gas analysis device,It is related to field of boilers,Including tracheae,Air pump,First temperature sensor,Second temperature sensor,Humidity sensor,Cooler,First magnetic valve,Detection module and control module,First temperature sensor,Cooler,Second temperature sensor and humidity sensor are sequentially connected in series in the tracheae,First magnetic valve and detection module are connected to the outlet side of the air pump side by side,The air pump,First temperature sensor,Second temperature sensor,Humidity sensor,Cooler,First magnetic valve and detection module electrically connect with the control module respectively,The controller controls the start and stop of the air pump,The opening and closing of the start and stop of the cooler and refrigerating capacity and first magnetic valve,When first magnetic valve is opened,Under test gas is discharged from first magnetic valve,During first closed electromagnetic valve,Under test gas enters the detection module.The utility model saves energy consumption, service life length.
Description
【Technical field】
It the utility model is related to field of boilers, and in particular to a kind of flue gas analysis device.
【Background technology】
With expanding economy, the protection of Environmental is increasingly paid attention to, therefore the requirement to boiler emission is also more next
It is higher, particularly in Beijing area, to the emission request as little as 30mg/L of nitrogen oxides.In the prior art, with boiler matching
Nitrogen oxides on-line checking analytical equipment be mostly be used for Cryogenic air analysis detection and analysis device or the of short duration product used,
The operating mode used is extremely restricted, while is in detection state all the time in use, is unfavorable for saving energy consumption, and longevity
Order it is short, can not be long-term use of.
【Utility model content】
To solve foregoing problems, the utility model provides a kind of new flue gas analysis device, not by applying working condition
Limitation, save energy consumption, service life length.
In order to achieve the above object, the utility model adopts the following technical scheme that：
A kind of flue gas analysis device, including tracheae, air pump, the first temperature sensor, second temperature sensor, humidity sensor
Device, cooler, the first magnetic valve, detection module and control module, the tracheae include air inlet pipe, and the air inlet pipe is installed on
The inlet end of the air pump, the first temperature sensor, second temperature sensor, humidity sensor and the cooler are serially connected with institute
State air inlet pipe, first temperature sensor is serially connected between flue gas source and the cooler, the second temperature sensor and
Humidity sensor is serially connected between the cooler and air pump, and first magnetic valve and detection module are connected to the gas side by side
The outlet side of pump, the air pump, the first temperature sensor, second temperature sensor, humidity sensor, cooler, the first electromagnetism
Valve and detection module are electrically connected with the control module respectively, and the air pump is passed by the control module according to first temperature
Sensor detected value control, the cooler start or stop and the refrigerating capacity of the cooler is by the control module root
Controlled according to the detected value of the second temperature sensor, first magnetic valve is by the control module according to the second temperature
The detected value of the detected value of sensor or the humidity sensor controls, and when first magnetic valve is opened, under test gas is from institute
The discharge of the first magnetic valve is stated, during first closed electromagnetic valve, under test gas enters the detection module.
Further, the detection module includes O2Detect piecemeal, SO2Detect piecemeal, NOx detections piecemeal, CO detection piecemeals
And CO2Piecemeal, each outlet side detected piecemeal and be connected to the air pump side by side are detected, the control module includes single-chip microcomputer and mould
Analog quantity control output circuit, each detection piecemeal electrically connect with the Analog control output circuit, the Analog control
Output circuit and the monolithic mechatronics, the detected value of each piecemeal are exported by the Analog control output circuit.
Further, second solenoid valve, first electromagnetism respectively are respectively equipped between detection piecemeal and the outlet side
The first relay is provided between valve and the control module, second is provided between each second solenoid valve and the control module
Relay, the control module include the relay switching variable control output circuit with the monolithic mechatronics, the monolithic
Machine controls the relay switching variable control output circuit, the relay switching variable control output circuit by described first after
Electrical equipment and the second relay control first magnetic valve and second solenoid valve respectively.
Further, be provided with the 3rd relay between the air pump and the control module, the 3rd relay with
The relay switching variable control output circuit electrical connection, the single-chip microcomputer control the relay switching variable control output electricity
Road, the relay switching variable control output circuit pass through air pump described in the 3rd Control.
Optionally, at pulse of the control module also including analog input process circuit and for external instrumentation
Circuit is managed, the first sensor, second sensor and humidity sensor electrically connect with the analog input process circuit, institute
State analog input process circuit and the pulse processing circuit and the monolithic mechatronics.
Optionally, the control module also includes cooling control circuit, the cooler and cooling control circuit electricity
Connection, the cooling control circuit and the monolithic mechatronics, inspection of the single-chip microcomputer according to the second temperature sensor
Measured value controls the start and stop of the cooler or refrigerating capacity, the single-chip microcomputer to be passed according to the humidity by the cooling control circuit
The detected value of sensor controls the refrigerating capacity of the cooler by the cooling control circuit.
Optionally, the control module also includes the On-off signal processing electricity for controlling the control module to start or stop
Road, the power supply input circuit powered to the control module and the safety protective circuit for preventing the control module overload, institute
On-off signal process circuit and the power supply input circuit and the monolithic mechatronics are stated, the safety protective circuit is located at
Between the single-chip microcomputer and the power supply input circuit.
Optionally, the control module is provided with RS485 interfaces and LAN interface, to connect external equipment.
Optionally, the cooler is that air-cooled cooler or semiconductor refrigerating cool down device.
After adopting the above technical scheme, the utility model has the following advantages that：
Detect the flue-gas temperature at air intake cooler both ends simultaneously by two temperature sensors, fill a whole set of flue gas analysis
Putting can be according to boiler emission smoke according to operation and stopping of the operation or stopping of boiler come determining device in itself, while also
The state of gas carrys out the running status of determining device in itself：Boiler smoke is analyzed by the detection numerical value of the first temperature sensor
When temperature is not less than the first temperature preset value, the not actuated operation of boiler is judged, flue gas analysis device also keeps the state of closing down, and rises
The effect for saving the energy is arrived；The numerical analysis detected by second temperature sensor and humidity sensor goes out boiler smoke
Temperature is between the first temperature preset value and second temperature preset value, the humidity of boiler smoke not less than humidity preset value when, open
Move device but only detected the effect for without being cooled down to flue gas, also playing and saving the energy；Sensed by second temperature
The temperature that the numerical analysis that device and humidity sensor detect goes out boiler smoke is preset in second temperature preset value and the 3rd temperature
Between value, the humidity of boiler smoke not less than humidity preset value when, opening cooler makes flue gas cool-down, ensures flue-gas temperature suitable
Detected in the range of preferably testing and analyzing, and the refrigerating capacity of cooler is adjusted according to the numerical value of second temperature sensor, make drop
Refrigerating capacity needed for temperature and actual refrigerating capacity match, therefore avoid because refrigerating capacity needed for cooling is more than what actual refrigerating capacity was brought
Work efficiency drop, or because refrigerating capacity needed for cooling is less than the energy waste that actual refrigerating capacity is brought；When boiler smoke temperature surpasses
Cross the 3rd temperature preset value or when boiler smoke humidity exceedes humidity preset value, close detection module, and the flue gas that will be extracted
Discharge, in order to avoid flue-gas temperature or the too high service life for causing to damage to detection module, extending device of humidity, while according to the
The detected value of two temperature sensors and humidity sensor adjusts the refrigerating capacity of refrigerator, flue gas is returned to suitable detection point as early as possible
In the range of analysis, operating efficiency is further ensured that；When the flue-gas temperature detected by second temperature sensor and humidity sensor,
When humidity is returned in the range of suitable detection and analysis, the tracheae of flue gas discharge is closed, reopens detection module.Therefore it is a whole set of
Flue gas analysis device is more intelligent, can come whether determining device is run according to starting or stoping for boiler, can be according to boiler smoke
Temperature and humidity determine whether to be cooled down and the size of refrigerating capacity, avoid unnecessary energy waste, save energy consumption, can
Determine whether to be detected according to the temperature and humidity of boiler smoke, avoid flue-gas temperature or humidity is too high that detection module is caused
Damage, is not limited by applying working condition, extends the service life of device.Meanwhile boiler smoke is divided according to detection module
Testing result is analysed, corresponding measure is taken in time, avoids non-compliant fume emission, serves the work of preventing and treating environmental pollution
With.
Detection module is divided into O2Detect piecemeal, SO2Detect piecemeal, NOx detections piecemeal, CO detection piecemeals and CO2Detection point
Block, detection project can be selected as needed.
In addition, control module, which is provided with RS485 interfaces and LAN interface, can be used for carrying out communication preset value, connection it is upper or
Touch-screen system carries out parameter setting and display, realizes remote online operation.Meanwhile analog input process circuit can also
The numerical value such as the flow of boiler, temperature, pressure are inputted, are engaged that to calculate boiler corresponding to the detection numerical value of the first temperature sensor
Energy consumption, the parameter such as power, enrich the function of flue gas analysis device.
These features and advantage of the present utility model will be carried out in detail in following embodiment and accompanying drawing
Exposure.The optimal embodiment of the utility model or means will carry out detailed performance with reference to accompanying drawing, but be not new to this practicality
The limitation of type technical scheme.In addition, in each of the lower in text and accompanying drawing these features, key element and the component that occur be have it is multiple,
And different symbols or numeral are marked in order to represent convenient, but represents same or similar construction or the part of function.
【Brief description of the drawings】
The utility model is described in further detail below in conjunction with the accompanying drawings：
Fig. 1 is the schematic diagram of the utility model embodiment one；
Fig. 2 is the schematic diagram of control module in the utility model embodiment one.
In accompanying drawing：
1- boiler waste gas delivery pipes, 2- tracheaes, 3- air pumps, the temperature sensors of 41- first, 42- second temperature sensors, 5-
Humidity sensor, 6- coolers, the magnetic valves of 7- first, 8- detection modules, 81-SO2Detect piecemeal, 82-O2Detect piecemeal, 83-
NOx detects piecemeal, 84-CO detection piecemeals, 85-CO2Detection piecemeal, 86- second solenoid valves, 9- control modules, 91- single-chip microcomputers,
92- Analog control output circuits, 93- relay switching variable control output circuits, 94- cooling control circuits, 95- pulses processing
Circuit, 96- analog input process circuits, 97- On-off signal process circuits, 98- power supply input circuits, 99- safeguard protections
Circuit.
【Embodiment】
The technical scheme of the utility model embodiment is explained with reference to the accompanying drawing of the utility model embodiment and
Illustrate, but following embodiments are only preferred embodiment of the present utility model, and it is not all.Based on the embodiment in embodiment,
Those skilled in the art obtain other embodiment on the premise of creative work is not made, and belong to of the present utility model
Protection domain.
" one embodiment " or " example " or " example " quoted in this manual means that itself is described in conjunction with the embodiments
Special characteristic, structure or characteristic can be included at least one embodiment disclosed in this patent.Phrase is " in one embodiment
In " appearance of each position in the description is not necessarily all referring to same embodiment.
In the description of the utility model embodiment, term " on ", " under ", "left", "right", " transverse direction ", " longitudinal direction ",
The orientation or position relationship of the instructions such as " interior ", " outer " are based on orientation shown in the drawings or position relationship, are for only for ease of and retouch
State the utility model rather than require the utility model must with specific azimuth configuration and operation, therefore it is not intended that to this
The limitation of utility model.
The present embodiment provides a kind of flue gas analysis device.
Embodiment one：
As depicted in figs. 1 and 2, a kind of flue gas analysis device, including tracheae 2, air pump 3, the first temperature sensor 41, second
Temperature sensor 42, humidity sensor 5, cooler 6, the first magnetic valve 7, detection module 8 and control module 9, tracheae 2 include
Boiler waste gas delivery pipe 1 is stretched into air inlet pipe, one end of air inlet pipe, and the other end is installed on the inlet end of air pump 3, the first TEMP
Device 41, second temperature sensor 42, humidity sensor 5 and cooler 6 are serially connected with air inlet pipe, and the first temperature sensor 41 is serially connected with
Between boiler waste gas delivery pipe 1 and cooler 6, cooler 6 can be that air-cooled cooler or semiconductor refrigerating cool down device, this implementation
The preferred air-cooled cooler of example.Second temperature sensor 42 and humidity sensor 5 are serially connected between cooler 6 and air pump 3, the first electricity
Magnet valve 7 and detection module 8 are connected to the outlet side of air pump 3 side by side, and detection module 8 includes O2Detect piecemeal 82, SO2Detect piecemeal
81st, NOx detects piecemeal 83, CO detection piecemeals 84 and CO2Detect piecemeal 85, each outlet for detecting piecemeal and being connected to air pump 3 side by side
End, and second solenoid valve 86 is respectively equipped between outlet side.
Air pump 3, the first temperature sensor 41, second temperature sensor 42, humidity sensor 5, cooler 6, the first electromagnetism
Valve 7 and detection module 8 electrically connect with control module 9 respectively, inspection of the air pump 3 by control module 9 according to the first temperature sensor 41
Measured value control, cooler 6 start or stop and the refrigerating capacity of cooler 6 by control module 9 according to second temperature sensor
42 detected value control, detected value or humidity sensor of first magnetic valve 7 by control module 9 according to second temperature sensor 42
5 detected value control, when the first magnetic valve 7 is opened, under test gas is discharged from the first magnetic valve 7, when the first magnetic valve 7 is closed,
Under test gas enters detection module 8.
Control module 9 includes single-chip microcomputer 91 and Analog control output circuit 92, and each detection piecemeal and Analog control are defeated
Go out circuit 92 to electrically connect, Analog control output circuit 92 electrically connects with single-chip microcomputer 91, and the detected value of each piecemeal passes through analog quantity
Control output circuit 92 exports.
Be provided with the first relay (not marked in figure) between first magnetic valve 7 and control module 9, each second solenoid valve 86 with
The second relay (not marked in figure) is provided between control module 9, control module 9 includes the relay electrically connected with single-chip microcomputer 91
Digital output modul output circuit 93, the control relay digital output modul output circuit 93 of single-chip microcomputer 91, relay switching variable control
Output circuit 93 controls the first magnetic valve 7 and second solenoid valve 86 respectively by the first relay and the second relay.
The 3rd relay (not marked in figure), the 3rd relay and relay switch are provided between air pump 3 and control module 9
Amount control output circuit 93 electrically connects, the control relay digital output modul output circuit 93 of single-chip microcomputer 91, relay switching variable control
Output circuit 93 processed passes through the 3rd Control air pump 3.
Control module 9 also includes analog input process circuit 96 and the pulse processing circuit for external instrumentation
95, first sensor 41, second sensor 42 and humidity sensor 5 electrically connect with analog input process circuit 96, analog quantity
Input processing circuit 96 and pulse processing circuit 95 electrically connect with single-chip microcomputer 91.
Control module 9 also includes cooling control circuit 94, and cooler 6 electrically connects with cooling control circuit 94, cooling control
Circuit 94 electrically connects with single-chip microcomputer 91, and single-chip microcomputer 91 passes through cooling control circuit 94 according to the detected value of second temperature sensor 42
The start and stop or refrigerating capacity, single-chip microcomputer 92 for controlling cooler 6 are controlled according to the detected value of humidity sensor 5 by cooling control circuit 94
The refrigerating capacity of cooler 6.
Control module 9 also include control control module 9 start or stop On-off signal process circuit 97, to control mould
The power supply input circuit 98 of the power supply of block 9 and the safety protective circuit 99 for preventing control module 9 from overloading, On-off signal processing electricity
Road 97 and power supply input circuit 98 electrically connect with single-chip microcomputer 91, and safety protective circuit 99 is located at single-chip microcomputer 91 and power supply input circuit
Between 98.
Control module 9 is provided with RS485 interfaces and LAN interface, to connect external equipment.
At work, single-chip microcomputer 91 receives the enabling signal of On-off signal process circuit 97, single-chip microcomputer to the present embodiment
91 control the first temperature sensor 41, second temperature sensor 42 and humidity sensor 5 by analog input process circuit 96
The flue gas data of relevant position are gathered respectively.When the temperature value that the first temperature sensor 41 detects is less than 50 DEG C, air pump 3 is protected
Hold halted state.When the flue-gas temperature that the first temperature sensor 41 detects is higher than 50 DEG C and is less than less than 80 degree, smoke moisture
When 35%, relay switching variable control output circuit 93 opens air pump 3 by the 3rd relay, and air pump 3 discharges from boiler waste gas
The gas bleeding of pipe 1, the magnetic valve 7 of cooler 6 and first remain off, and flue gas flows through the first temperature sensor 41, cold successively
But device 6, second temperature sensor 42 and humidity sensor 5 enter detection module 8.When the cigarette that second temperature sensor 42 detects
When the smoke moisture that temperature degree detects higher than 80 DEG C and less than 85 DEG C, humidity sensor 5 is less than 35%, cooling control circuit 94
Control cooler 6 is opened, and the first magnetic valve 7 remains turned-off, cigarette of the single-chip microcomputer 91 according to detected by second temperature sensor 42
Smoke moisture detected by gas temperature and moisture sensors 5, the big of the refrigerating capacity of cooler 6 is controlled by cooling control circuit 94
It is small, the temperature of flue gas is maintained between 80 DEG C to 85 DEG C, humidity is less than 35%, and flue gas flows through the first temperature sensor successively
41st, cooler 6, second temperature sensor 42 and humidity sensor 5 enter detection module 8.
When second temperature, to have sensed 42 flue-gas temperatures detected wet higher than the flue gas that 85 DEG C or humidity sensor 5 detect
When degree is more than 35%, relay switching variable control output circuit 93 opens the first magnetic valve 7 by the first relay, now flue gas
It should not be detected into detection module 8, therefore all be discharged by the first magnetic valve 7.
In detection module 8, second solenoid valve 86 is to detect and open as needed, first detects the content of CO in flue gas,
Second solenoid valve 86 corresponding to opening, O2, the second electromagnetism corresponding to opening are detected when the CO contents detected are less than 0.04%
Valve 86, works as O2Content within 0~15%% ± 0.15, and stable some value more than 1 minute wherein can open pair
The second solenoid valve 86 answered detects NOx, SO2、CO2, when detecting NOx, SO2、CO2Content more than 50% when close it is relative
The second solenoid valve 86 answered；When CO contents are more than 0.06%, all second solenoid valves 86 are closed, open the row of the first magnetic valve 7
It is empty.
The stream that the flue-gas temperature and analog input process circuit 96 detected according to the first temperature sensor 41 receives
The numerical value such as amount, pressure difference can also calculate the efficiency of boiler.
Analog control output circuit 92 can the flue-gas temperature value detected, humidity value is with standard industrial process signals 0-
10V or 4-20Ma form outwards exports.RS485, LAN interface support open MODBUS RTU standards, can be used for carrying out
Communication preset value, connection is upper or touch-screen system carries out parameter setting and display.
More than, only specific embodiment of the present utility model, but the scope of protection of the utility model is not limited thereto,
It is familiar with the those skilled in the art and should be understood that the utility model includes but is not limited in accompanying drawing and above embodiment
The content of description.Any modification without departing from function and structure principle of the present utility model is intended to be included in the model of claims
In enclosing.
Claims (9)
- A kind of 1. flue gas analysis device, it is characterised in that：Including tracheae, air pump, the first temperature sensor, second temperature sensing Device, humidity sensor, cooler, the first magnetic valve, detection module and control module, the tracheae includes air inlet pipe, described Air inlet pipe is installed on the inlet end of the air pump, first temperature sensor, second temperature sensor, humidity sensor and cold But device is serially connected with the air inlet pipe, and first temperature sensor is serially connected between flue gas source and the cooler, and described second Temperature sensor and humidity sensor are serially connected between the cooler and air pump, and first magnetic valve and detection module are arranged side by side It is connected to the outlet side of the air pump, the air pump, the first temperature sensor, second temperature sensing, humidity sensor, cooling Device, the first magnetic valve and detection module electrically connect with the control module respectively, and the air pump is by the control module according to institute State the first temperature sensor detected value control, the cooler start or stop and the refrigerating capacity of the cooler is by institute State control module according to the detected value of the second temperature sensor control, first magnetic valve by the control module according to The detected value of the detected value of the second temperature sensor or the humidity sensor controls, when first magnetic valve is opened, Under test gas is discharged from first magnetic valve, and during first closed electromagnetic valve, under test gas enters the detection module.
- 2. flue gas analysis device according to claim 1, it is characterised in that：The detection module includes O2Detection piecemeal, SO2Detect piecemeal, NOx detections piecemeal, CO detection piecemeals and CO2Piecemeal is detected, each piecemeal that detects is connected to the air pump side by side Outlet side, the control module include single-chip microcomputer and Analog control output circuit, each detection piecemeal and the analog quantity Control output circuit electrically connects, the Analog control output circuit and the monolithic mechatronics, the detection of each piecemeal Value is exported by the Analog control output circuit.
- 3. flue gas analysis device according to claim 2, it is characterised in that：Divide between each detection piecemeal and the outlet side Not She You second solenoid valve, be provided with the first relay between first magnetic valve and the control module, each second electricity The second relay is provided between magnet valve and the control module, the control module includes the relay with the monolithic mechatronics Device digital output modul output circuit, the single-chip microcomputer control the relay switching variable control output circuit, and the relay is opened Measure control output circuit and first magnetic valve and the second electricity are controlled by first relay and the second relay respectively in pass Magnet valve.
- 4. flue gas analysis device according to claim 3, it is characterised in that：Set between the air pump and the control module There is the 3rd relay, the 3rd relay electrically connects with the relay switching variable control output circuit, the single-chip microcomputer control The relay switching variable control output circuit is made, the relay switching variable control output circuit passes through the 3rd relay Control the air pump.
- 5. flue gas analysis device according to claim 2, it is characterised in that：The control module also includes analog input Process circuit and the pulse processing circuit for external instrumentation, the first sensor, second sensor and humidity sensor Device electrically connects with the analog input process circuit, the analog input process circuit and the pulse processing circuit and institute State monolithic mechatronics.
- 6. flue gas analysis device according to claim 2, it is characterised in that：The control module also includes cooling control electricity Road, the cooler electrically connect with the cooling control circuit, the cooling control circuit and the monolithic mechatronics, described The start and stop that single-chip microcomputer passes through the cooling control circuit control cooler according to the detected value of the second temperature sensor Or refrigerating capacity, the single-chip microcomputer control the cooling according to the detected value of the humidity sensor by the cooling control circuit The refrigerating capacity of device.
- 7. flue gas analysis device according to claim 2, it is characterised in that：The control module also includes controlling the control On-off signal process circuit that molding block starts or stops, to the power supply input circuit of control module power supply and prevent The safety protective circuit of control module overload, the On-off signal process circuit and the power supply input circuit with it is described Monolithic mechatronics, the safety protective circuit are located between the single-chip microcomputer and the power supply input circuit.
- 8. flue gas analysis device according to claim 2, it is characterised in that：The control module be provided with RS485 interfaces and LAN interface, to connect external equipment.
- 9. flue gas analysis device according to claim 1, it is characterised in that：The cooler is air-cooled cooler or partly led Body refrigeration cooler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721286390.9U CN207181388U (en) | 2017-09-30 | 2017-09-30 | A kind of flue gas analysis device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721286390.9U CN207181388U (en) | 2017-09-30 | 2017-09-30 | A kind of flue gas analysis device |
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| Publication Number | Publication Date |
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| CN207181388U true CN207181388U (en) | 2018-04-03 |
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ID=61749658
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721286390.9U Active CN207181388U (en) | 2017-09-30 | 2017-09-30 | A kind of flue gas analysis device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107561222A (en) * | 2017-09-30 | 2018-01-09 | 浙江力聚热水机有限公司 | A kind of flue gas analysis device |
| CN113237999A (en) * | 2021-04-18 | 2021-08-10 | 鲁文英 | Voc online monitoring system and monitoring method thereof |
-
2017
- 2017-09-30 CN CN201721286390.9U patent/CN207181388U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107561222A (en) * | 2017-09-30 | 2018-01-09 | 浙江力聚热水机有限公司 | A kind of flue gas analysis device |
| CN107561222B (en) * | 2017-09-30 | 2024-04-19 | 浙江力聚热能装备股份有限公司 | Flue gas analysis device |
| CN113237999A (en) * | 2021-04-18 | 2021-08-10 | 鲁文英 | Voc online monitoring system and monitoring method thereof |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 313023 Zhejiang Liju water heater Co., Ltd., east of Jianshe North Road, shangqiang industrial functional zone, Daixi Town, Wuxing District, Huzhou City, Zhejiang Province Patentee after: Zhejiang Liju thermal energy equipment Co.,Ltd. Address before: 313023 Zhejiang Liju water heater Co., Ltd., east of Jianshe North Road, shangqiang industrial functional zone, Daixi Town, Wuxing District, Huzhou City, Zhejiang Province Patentee before: ZHEJIANG UNIPOWER BOILER Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |