CN207440048U - Flare discharge object test equipment - Google Patents
Flare discharge object test equipment Download PDFInfo
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- CN207440048U CN207440048U CN201721446594.4U CN201721446594U CN207440048U CN 207440048 U CN207440048 U CN 207440048U CN 201721446594 U CN201721446594 U CN 201721446594U CN 207440048 U CN207440048 U CN 207440048U
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- flue gas
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- test equipment
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Abstract
A kind of flare discharge object test equipment (100), including：Mixed gas system (50), the mixed gas system are configured to mix at least two test fuel gases and export torch gas；The flare system (60) being connected with the mixed gas system, the flare system are configured to receive the torch gas from the mixed gas system and are burnt using flare tip (61) to torch gas and generate flue gas；Smoke collecting system (70), the smoke collecting system are configured to trap flue gas from the flare system and be sampled from the flue gas trapped；Flue gas analysis system (80), the flue gas analysis system are connected with the smoke collecting system and are configured to receive sampled flue gas and carry out constituent analysis to the flue gas；With flue gas evaluation system (90), the flue gas evaluation system is connected with the flue gas analysis system and is configured to be calculated and evaluated based on the analysis result of the flue gas analysis system burn-off rate DRE of at least flue gas.
Description
Technical field
The utility model is related to the combustion plant fields in especially petro chemical industry, relate more specifically to a kind of torch
Emission test equipment.
Background technology
Torch be used in petrochemical industry processing plant or device go into operation, stop, normally production or when repair and maintenance, produce
The special combustion plant of raw imflammable gas.Various imflammable gas are aggregated into flare system by torch gas pipe network and are fired
It burns, is then discharged to air.In order to protect associated surrounding equipment, personnel and the safety of environment, flare system need to meet relevant
Design specification and requirement.Especially, the emission or flue gas generated after torch burning is main volatile organic compounds
(VOC) one of emission source must is fulfilled for increasingly stringenter environmental requirement.
The flare discharge object index of burn-off rate (DRE) etc. is whether evaluation flare system meets relevant environmental requirement
With the key factor of design specification.However, in actual production, the acquirement of these indexs and the design of relevant flare system are often
It is to estimate and calculate based on theoretical, and calculating and design result can not be verified.Even formulate the environmental protection of environmental protection standard
Mechanism also fail to propose detect these indexs and judge flare discharge object whether meet environmental requirement effective instrument and equipment and
Method.
Therefore, it is necessary to developing a kind of can carry out the emission of flare system precisely effective test to judge its discharge
The whether satisfactory test equipment of object index.
Utility model content
The utility model provides a kind of flare discharge object test equipment therefore, can at least generate following Advantageous
Effect：Working condition of the flare system under actual operating conditions can be simulated according to the application demand of client, to thus generating
Flare discharge object carry out effective sampling and test and obtain accurate emission index accordingly, judge, verify or excellent with this
Change the Environmental Design of flare system.
Flare discharge object test equipment according to the present utility model includes：Mixed gas system, the mixed gas system are configured to pair
At least two test fuel gases are mixed and export torch gas；The flare system being connected with the mixed gas system, the fire
Torch system is configured to receive the torch gas from the mixed gas system and is burnt using flare tip to torch gas and generate cigarette
Gas；Smoke collecting system, the smoke collecting system are configured to trap flue gas from the flare system and from the cigarette trapped
It is sampled in gas；Flue gas analysis system, the flue gas analysis system are connected with the smoke collecting system and are configured to receive
The flue gas that is sampled and constituent analysis is carried out to the flue gas；With flue gas evaluation system, the flue gas evaluation system and the cigarette
Qi leel analysis system connects and is configured to calculate and evaluate the combustion of at least flue gas based on the analysis result of the flue gas analysis system
Rate DRE to the greatest extent.
Advantageously, the flare system may include the totally enclosed type radiation protection noise barrier for surrounding the flare tip.
Particularly, the smoke collecting system may include to be suspended in flue gas trapping pipe above the flame of the flare tip and
The flue gas sampling pipe stretched out from the flue gas trapping pipe, one end of the flue gas sampling pipe are located in the flue gas trapping pipe,
The other end of the flue gas sampling pipe is connected to be sampled from the flue gas trapped by the sampling pump with sampling pump.
As illustrative configuration, the flue gas trapping pipe may include the flue gas trapping mouth for facing flame in the vertical direction
The tube body either vertically or horizontally arranged, one end of the tube body is in the top of the flue gas trapping mouth and the flue gas trapping
Mouth connection.
Advantageously, the other end of the tube body includes from the flare system taking out flue gas through the flue gas trapping mouth
The venturi-type gas injection device being drawn onto in the flue gas trapping pipe.
For example, the flare system may also include record flame and the pattern of flue gas and the visible ray of position and/or infrared
Camera.
Advantageously, the temperature measuring equipment for measuring flue-gas temperature is may be provided on the flue gas trapping pipe.
In one embodiment, the flue gas trapping pipe may be configured to movably, so that the flue gas trapping mouth is moved
The position of flue gas can suitably be trapped by moving.
Particularly, the flue gas analysis system may include THC analyzers and oxygen analyzer to measure the THC concentration in flue gas
CTHCWith oxygen concentration CO2。
Description of the drawings
Fig. 1 is a kind of block architecture diagram of illustrative configuration of flare discharge object test equipment according to the present utility model；
Fig. 2 is the overall schematic view of exemplary flare discharge object test equipment according to the present utility model；
Fig. 3 is the detail of construction of exemplary flare discharge object test equipment according to the present utility model；
Figure 4 and 5 are respectively two kinds of the flue gas trapping pipe in flare discharge object test equipment according to the present utility model and show
The side view of example property configuration；And
Fig. 6 is the illustrative configuration figure of the gas injection device in the flue gas trapping pipe shown in Figure 4 and 5.
Specific embodiment
The embodiment of the utility model is described in detail referring to each attached drawing.
Fig. 1 schematically shows the totality of the flare discharge object test equipment 100 according to the utility model one embodiment
Framework.Test equipment 100 mainly includes mixed gas system 50, flare system 60, smoke collecting system 70,80 and of flue gas analysis system
Flue gas evaluation system 90.
Mixed gas system 50 is configured to mix at least two test fuel gases and export and is sent to torch and burns
Torch gas.The test fuel gas can be any kind of imflammable gas that is selected according to the application demand of client,
Methane (CH including but not limited to shown in FIG. 14), propane (C3H8), hydrogen (H2), nitrogen (N2) and carbon dioxide (CO2) in
Two or more.Various test fuel gases are inputted with parameters such as predetermined flow, proportioning, pressure, proportion and temperature to mixed
Gas system 50, to obtain with the mixing torch gas for it is expected calorific value.In addition, the above-mentioned parameter of various test fuel gases is for example
It is by real-time monitoring and controlled adjustable, accurately to simulate the various flare systems of different clients using required not of the same race
The torch gas of class.The torch gas obtained after mixing can be for example stored in preserve for a long time in air accumulator, and ensures its pressure
Power meets test request, and being then sent into flare system when needed with certain pressure burns.
Mixed gas system 50 can be connected to flare system 60 via pipeline of supplying gas, so that flare system 60 is received from mixed gas
The torch gas of system simultaneously as shown in Figures 2 and 3 burns to torch gas using flare tip 61 and generates flue gas.For combustion-supporting and suppression
Black smoke generation processed etc. also for example can convey steam by pipeline 67 shown in Fig. 3 to flare tip.Torch gas burns and sends flame
68, while generate stack gas emissions.In the utility model, in order to inhibit the mutual shadow between external environment and torch burning
It rings, flare tip can be enclosed in totally enclosed type radiation protection noise barrier 62.Can the radiation protection noise reduction be designed according to torch type
The size and shape of screen, so as to realize ground flare head, the performance test that can also realize overhead torch head.Flare system 60
It may also include record flame and the pattern of flue gas and the camera of position.For example, it can be set on the wall of radiation protection noise barrier 62
Visible light camera 63 and/or infrared camera 65, for flame and flue gas to be taken pictures and/or imaged, are recorded
Result can send the control device of test equipment, such as dcs shown in Fig. 3 (DCS) to by signal wire
92, for intuitively evaluating and/or controlling the setting of flare system and/or test equipment.
In order to which the stack gas emissions for burning and generating to torch gas are tested, using smoke collecting system 70 from torch
Flue gas is trapped in system 60 and is sampled from the flue gas trapped.Specifically, as shown in Figures 2 and 3, smoke collecting system 70
It may include for example to be suspended in the flue gas trapping pipe 71 above the flame of flare tip 61 by hanger 73.Flue gas trapping pipe 71 may include
The flue gas trapping mouth 1 of flame is faced in the vertical direction.Flue gas trapping mouth 1 for example in the form of the cone-shaped hood opened downwards, with
Convenient for flue gas is drawn and is trapped in flue gas trapping pipe 71.As shown in Figures 4 and 5, flue gas trapping pipe 71 is further included catches with flue gas
Collect the tube body 9 of rear end (upper end) connection of mouth 1.According to the difference for the flame height that flare tip generates under different combustion conditions,
Tube body 9 can be vertically provided or flatly arrange as shown in Figure 5 as shown in Figure 4, be respectively suitable for low level fire smoke gases trapping side
Formula and high-order fire smoke gases Trapping ways.In the case where being trapped as shown in Figure 5 for high-order fire smoke gases, horizontally disposed pipe
Body 9 is connected by elbow 2 with the flue gas trapping mouth 1 arranged vertically.
Can be set on tube body 9 for measure trap flue gas temperature temperature measuring equipment 4, such as thermocouple.Temperature measuring equipment 4
Control device 92 to (see Fig. 3) is sent measured temperature signal TE by signal wire 7, by control device 92 according to the temperature
Whether signal meets test request for example judging flue gas that torch burning generates and/or adjusts flue gas trapping mouth 1 and flame
Relative position and distance.
It may be provided with the lifting lug 3 that flue gas trapping pipe 71 is lifted for hanger 73 on the wall of tube body 9.Hanger 73 can be configured to
It is moveable on horizontally and/or vertically, so that the flue gas trapping pipe 71 being suspended on hanger 73 is also movable, so
Flue gas trapping mouth 1 just can be moved to the position that can suitably trap flue gas.For example, control device 92 can be according to from camera
63rd, the 65 record results obtained determine the pattern of flame and/or flue gas and position, and according to the temperature obtained from temperature measuring equipment 4
Degree signal determines the temperature of flue gas, then considers that these are opposite because of usually adjustment flue gas trapping mouth 1 and flame and/or flue gas
Position, and control hanger 73 that flue gas trapping pipe 71 is driven to be moved to corresponding position, so that flue gas trapping mouth 1 can suitably be caught
Collect the flue gas for most preferably meeting test request.
In order to obtain the power that can be drawn into through flue gas trapping mouth 1 flue gas in flue gas trapping pipe 71, flue gas trapping pipe 71
It is additionally provided with Smoke pump 5.As shown in Figures 4 and 5, flue gas trapping mouth 1 is mounted on one end of the tube body 9 of flue gas trapping pipe 71, and cigarette
Air pump 5 is arranged on the other end of tube body 9.In the illustrated embodiment, Smoke pump 5 is in the form of venturi-type gas injection device
It constructs.Fig. 6 shows the enlarged view of this gas injection device, including Venturi tube and the spray being arranged in Venturi tube
Mouth 10.Venturi tube includes converging transition I, mixing section II and diffuser III.As shown in Figures 4 and 5, nozzle 10 connects with compressed air hose 6
It connects, and compressed air is passed through into converging transition I, mixing section II and diffuser III successively to spray at a high speed.In Venturi tube so
The compressed air high-speed jet volume of flowing inhales the relatively low flue gas of ambient pressure, fires torch so as to be formed in flue gas trapping pipe 71
Burn the suction force that the flue gas generated is drawn into from flare system in flue gas trapping pipe.Above-mentioned gas induction apparatus is simple in structure, exempts from
In maintenance, it is particularly suitable as extracting the power set of flue gas under worst hot case.
In order to which to carry out smoke test, smoke collecting system 70 is also wrapped for sampling from the flue gas that flue gas trapping pipe 71 is trapped
Include the flue gas sampling pipe 8 stretched out from flue gas trapping pipe.One end of flue gas sampling pipe is located in flue gas trapping pipe 71, and the other end
It is connected with sampling pump 75.Sampling pump 75 carries out pumping sample from the flue gas trapped at work.
The flue gas collected by sampling pump 75 is sent to the flue gas analysis system 80 being connected with smoke collecting system.Flue gas point
Analysis system 80 includes various gas analysis arrangements 82, to carry out constituent analysis to received flue gas.It is carrying out analyzing it
Before, the pretreatment that can first be dried, filter to flue gas etc.Various hydrocarbons (HC), oxygen can be generally included in flue gas
(O2), carbon monoxide (CO), carbon dioxide (CO2) and nitrogen oxides (NOx) etc., gas analysis arrangement 82 can be analyzed or detected
The species and content or concentration of these smoke components.
The detection and analysis result of gas analysis arrangement 82 can be sent to the flue gas being connected with flue gas analysis system 80 and judge system
System 90, for carrying out directly evaluating or being for further processing to the detection and analysis result of flue gas.Flue gas evaluation system 90 can be such as
It is integrated in control device 92.As the key factor whether judge stack gas emissions and flare system design meet the requirements, cigarette
The burn-off rate DRE of gas is the fume indication that flue gas evaluation system 90 needs most acquisition.The general calculation of burn-off rate DRE is profit
It is obtained with the amount of the TVOC in the amount divided by torch gas of the total volatile organic compounds (TVOC) in flue gas, and usually used
Total hydrocarbon (THC) characterizes TVOC.However, the amount of the THC in flue gas is difficult to use Instrument measuring, this causes using above-mentioned
Calculation can not obtain burn-off rate DRE.
The flue gas evaluation system 90 of the utility model obtains the burn-off rate DRE of flue gas, i.e. basis using another way
(*) calculates burn-off rate DRE to the THC concentration and oxygen concentration measured in flue gas as the following formula：
Wherein, COTHCFor THC concentration of emissions (the THC concentration i.e. in flue gas) and C through conversionOTHC=CTHC× α, α were
Measure air coefficient and α=(21%-0%)/(21%-CO2)(CO2Unit be %), CITHCFor the THC concentration in torch gas.For
This, gas analysis arrangement 82 includes at least oxygen analyzer AT1 and THC analyzer AT2 as shown in Figure 3, to measure cigarette respectively
Oxygen concentration C in gasO2With THC concentration CsTHC。
The reason for being converted in above-mentioned calculation to the THC concentration in flue gas is that smoke collecting system is gathered
Flue gas in contain the air being originally present in flare system, this is equivalent to dilute the THC in flue gas, makes
The THC concentration Cs that handy gas analysis arrangement detectsTHCAnd the actual THC concentration in flue gas generates deviation.By calculating CTHC
With excess air coefficient α=(21%-0%)/(21%-CO2) product, be equivalent to C according to excess air coefficient αTHCCorrection
Concentration when oxygen content into flue gas is 0%, that is, obtain the actual THC concentration Cs in flue gasOTHC.In above formula (*),
THC concentration Cs in torch gasITHCIt can for example be calculated using the combustion reaction of torch gas.For example it is assumed that it is included in torch gas
50% propane (C3H8) and 50% nitrogen (N2), then combustion reaction formula can be C3H8+5O2+25N2→3CO2+4H2O+25N2+
THC (uncombusted C3H8), the THC (C in torch gas are understood accordingly3H8) concentration CITHC=1/31 × 50%=1.61%.
Finally, it is assumed that the oxygen concentration C in the flue gas determined with oxygen analyzer AT1 and THC analyzer AT2O2It is dense with THC
Spend CTHCRespectively 18% and 5ppm/m3, then burn-off rate DRE (%)=1-5 × (21%-0%) that calculates by above formula (*)/
(21%-18%)/1.61%=99.78%.After calculating burn-off rate DRE, flue gas evaluation system can be evaluated whether it meets phase
Pass standard.
In addition to burn-off rate DRE, flue gas evaluation system also for example can calculate and evaluate other indexs of flare system, such as fire
Content or concentration of efficiency and other stack gas emissions etc. is burnt, judges, verify or optimize the design of different flare systems with this.
In the above-described embodiments, sampling pump 75, gas analysis arrangement 82 and control device 92 can be installed in test equipment prison
It controls in room 85.The signal that for example, control device 92 of dcs not only can as shown in Figure 3 by being represented by the dotted line
In camera 63 in line and flare system, 65, the temperature measuring equipment 4 that is arranged on flue gas trapping pipe 71 and flue gas analysis system
Gas analyzer AT1, AT2 connect to receive relevant input information, moreover it is possible in a wired or wireless fashion in test equipment
Other devices (the combustion gas input control device in such as moveable hanger 73, mixed gas system 50) connection it is other defeated to receive
Enter information and/or the corresponding control signal of output.Control device 92 may be based on the automatic control equipment of computer or
Equipment operator oneself.
The flare discharge object test equipment of the utility model is described by specific embodiment above.For ability
It, can be to institute above for field technique personnel it is readily apparent that in the case where not departing from the scope of the utility model or spirit
Various modification can be adapted and modification for disclosed embodiment.This specification and its disclosed example should be considered to be only illustrative, this
The true scope of utility model is defined by the appended claims and the equivalents thereof.
Claims (9)
1. a kind of flare discharge object test equipment (100), including：
Mixed gas system (50), the mixed gas system are configured to mix at least two test fuel gases and export torch
Gas；
The flare system (60) being connected with the mixed gas system, the flare system are configured to receive from the mixed gas system
Torch gas simultaneously burns to torch gas using flare tip (61) and generates flue gas；
Smoke collecting system (70), the smoke collecting system are configured to trap flue gas from the flare system and from being trapped
Flue gas in sampled；
Flue gas analysis system (80), the flue gas analysis system are connected with the smoke collecting system and are configured to receive and sampled
The flue gas that arrives and constituent analysis is carried out to the flue gas；With
Flue gas evaluation system (90), the flue gas evaluation system are connected with the flue gas analysis system and are configured to based on the cigarette
The analysis result of qi leel analysis system calculates and evaluates the burn-off rate DRE of at least flue gas.
2. flare discharge object test equipment (100) according to claim 1, which is characterized in that
The flare system (60) includes surrounding the totally enclosed type radiation protection noise barrier (62) of the flare tip.
3. flare discharge object test equipment (100) according to claim 1, which is characterized in that
The smoke collecting system (70) includes being suspended in flue gas trapping pipe (71) above the flame of the flare tip and from institute
The flue gas sampling pipe (8) stretched out in flue gas trapping pipe is stated, one end of the flue gas sampling pipe is located in the flue gas trapping pipe, institute
It states the other end of flue gas sampling pipe and sampling pump (75) is connected to be sampled from the flue gas trapped by the sampling pump.
4. flare discharge object test equipment (100) according to claim 3, which is characterized in that
The flue gas trapping pipe (71) is included in flue gas trapping mouth (1) that flame is faced on vertical direction and either vertically or horizontally
The tube body (9) of arrangement, one end of the tube body are connected in the top of the flue gas trapping mouth with the flue gas trapping mouth.
5. flare discharge object test equipment (100) according to claim 4, which is characterized in that
The other end of the tube body (9) includes from the flare system (60) taking out flue gas through the flue gas trapping mouth (1)
The venturi-type gas injection device (5) being drawn onto in the flue gas trapping pipe (71).
6. flare discharge object test equipment (100) according to claim 3, which is characterized in that
The flare system (60) further includes record flame and the pattern of flue gas and the visible ray of position and/or infrared camera
(63,65).
7. flare discharge object test equipment (100) according to claim 3, which is characterized in that
The temperature measuring equipment (4) for measuring flue-gas temperature is provided on the flue gas trapping pipe (71).
8. flare discharge object test equipment (100) according to claim 4, which is characterized in that
The flue gas trapping pipe (71) is configured to movably, so that the flue gas trapping mouth (1) to be moved to and can suitably catch
Collect the position of flue gas.
9. flare discharge object test equipment (100) according to any one of claim 1 to 8, which is characterized in that
The flue gas analysis system (80) includes THC analyzers (AT2) and oxygen analyzer (AT1) is dense to measure the THC in flue gas
Spend CTHCWith oxygen concentration CO2。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721446594.4U CN207440048U (en) | 2017-11-02 | 2017-11-02 | Flare discharge object test equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721446594.4U CN207440048U (en) | 2017-11-02 | 2017-11-02 | Flare discharge object test equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207440048U true CN207440048U (en) | 2018-06-01 |
Family
ID=62291840
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721446594.4U Active CN207440048U (en) | 2017-11-02 | 2017-11-02 | Flare discharge object test equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207440048U (en) |
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2017
- 2017-11-02 CN CN201721446594.4U patent/CN207440048U/en active Active
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