The automatic device for adding odor of combustion gas
Technical field
The utility model relates to a kind of device for adding odor, specially refers to apparatus for making gas ordorous.
Background technique
Gradually be applied to life of urban resident and industrial production along with rock gas, solving air feed safety is a very important problem, as you know, rock gas is a colorless and odorless, can't discover in case leak people, the people is poisoned, burn, danger such as blast bring great threat for people's lives and properties and industrial production.In view of the above, must in combustion gas, add a kind of smelly dose.
At present main two kinds of popular device for adding odor:
A kind of is the stink adding method of simple dribble-feed or saturated vapour formula, they mainly by the odorant stocking mechanism, the gas-liquid equilibrium pipe, connecting valve and odorant delivery pipe constitutes, the odorant of odorant in storing filling relies on the capillarity of gravity and burette, the odorant titration is entered in the gas supply pipe and in combustion gas evaporate, reach in view of the above and add smelly effect.But thisly add smelly method and not only be difficult to control the concentration that adds smelly adding, and cause the waste of odorant, the sulphide of high concentration with fuel gas buring after, the sulfur dioxide of generation causes pollution of atmosphere.
In China Patent No. be: 99250739.1 disclose adding of another smelly technology mainly adopts metering pump formula device for adding odor, this kind device for adding odor is generally by gathering gas flow, input standard odorizing amount, the single-stroke output quantity of metering pump, calculate the stroke frequency of metering pump by control system, drive metering pump, be transported to vaporizer smelly dose by this frequency work, with the fuel gas flow mixing of volatilizing naturally, reach and evenly add smelly and certainty ratio adds smelly purpose.This device for adding odor a kind ofly adds smelly technological progress and has Duoed than preceding, has realized making gas ordorous automation.But thisly add the technical problem that smelly technology exists: can't realize accurately adding smelly, open loop control does not fully have feedback error relatively, and gaseous-pressure changes the output quantity that directly influences metering pump; Airtight operation can not be realized,, false alarm can be produced because the leakage of smelly dose of saturated vapour can cause environmental pollution; The structural imperfection of vaporizer causes volatility not high, and melting concn is inhomogeneous, produces the dropping liquid phenomenon, and then the rotten turbid gas pipeline that adds smelly point.
The model utility content
The purpose of this utility model aims to provide the automatic device for adding odor of combustion gas, and to realize that closed loop control adds bad luck capable, reach accurate interpolation, constant concentration, the nothing that realizes a whole set of device for adding odor is leaked closed operation, eliminate because smelly dose of saturated vapour leaks hidden danger and the false alarm that causes environmental pollution, solve volatilization and produce the dropping liquid phenomenon slowly, reach mixed uniformly purpose more fully.。
The technology that adopts by this purpose is the automatic device for adding odor of combustion gas, comprise Raw material pail, supply pipe, smelly dose of storage filling, in-line filter, metering pump, smelly dose of output tube, vaporizer, gas pipeline, control system, connection valve, increase mass flowmenter, one end of mass flowmenter is connected with smelly dose of output tube, the other end is connected with vaporizer, and mass flowmenter is connected by signal conductor with control system
The automatic device for adding odor of described combustion gas, the vaporizer of this device for adding odor are the grid vaporizer, and this vaporizer adopts trellis work, the tubule of the intercommunication of networking, the micropore of certain density that distributes.
The automatic device for adding odor of described combustion gas, the whole series of this device for adding odor add smelly system does not have the operation down of the closed state of leakage.
The automatic device for adding odor of described combustion gas, this device for adding odor increases level meter, inhalation valve, active carbon absorption filling, Emergeny Cutoff Valves, inhalation valve is irritated with smelly dose of storage and is connected, active carbon absorbs to irritate and is connected with inhalation valve, inhalation valve is diffused in the atmosphere in order to seal smelly dose of saturated air, active carbon absorbs irritates the smelly dose of saturated air gas that overflows after the absorption overvoltage, adsorbs the outside simultaneously and enters the smelly dose of airborne moisture of storage filling, thereby realize that the whole series add smelly system and do not have the leakage closed operation.
The automatic device for adding odor of described combustion gas, smelly dose of this device for adding odor is stored up nitrogen injection in the filling, forms the sealing of nitrogen constant voltage, neither has smelly dose of saturated vapour and overflows, and does not also have air and enters smelly dose of storage filling, does not have the leakage closed operation thereby realization the whole series add smelly system.
The automatic device for adding odor of described combustion gas, the level meter of this device for adding odor are the magnetic level meters.
The explanation of control principle: this programme adopts Closed loop Control, is the core forming control system with industrial computer or programmable controller.The be complementary metering pump of driving mode of configuration and the peripheral circuit that adapts at the needs of closed loop control, must measure smelly dose of output, with the metering signal input control system.Increase mass flowmenter, it is capable to realize that closed loop control adds bad luck, reaches and accurately adds odorant, constant concentration.The output flow that the mass flowmenter metering is smelly dose, give control system with smelly dose of output flow signal feed back, with compare by gathering the determined smelly dose of output flow of gas flow signal, calculate correction by control system, drive signal after output is adjusted then drives metering pump work by drive circuit at last.
Smelly in order to realize that closed loop accurately adds automatically, must gather gas flow signal, smelly dose of output flow signal, the standard odorizing amount that the combustion gas standard provides, and the single-stroke output quantity of user's self-calibration.
Programme, calculate, control, export by following formula: the metering pump stroke frequency, according to the stroke frequency that calculates, the equally distributed pulse of output in the unit time, give drive circuit and drive metering pump work, each pulse makes finishes stroke action of metering pump, simultaneously, the smelly agent flux signal feed back of mass flowmenter collection is given control system.Compare with the needed smelly dose of adding quantity of the gas flow that collects, if output quantity is bigger than normal, then reduce stroke frequency, otherwise then increase number of strokes.Relatively, revise stroke frequency in real time, and then it is smelly to have realized that closed loop accurately adds automatically, constant concentration in real time.
Realized that closed loop adds smelly control owing to adopt mass flowmenter, promoting effect has been played in safe operation to the work of applying unit air feed, has eliminated original technology and has not known to add and do not have odorant, has added also not know to add what smelly dose hidden danger, save smelly dose use, reduced cost of production.
By increasing the magnetic level meter, inhalation valve, active carbon absorb irritates, Emergeny Cutoff Valves, realized adding the closed operation of smelly system, effectively stoped overflowing of smelly dose of leakage and smelly dose of saturated vapour, promptly ensure safety in production, reached the purpose of environmental protection again, more effectively prevented false alarm and the crowd that brings is panic and the worry of the investigation leak source of combustion gas operation enterprise.
The grid vaporizer of brand-new design, make smelly dose of volatilization rapider, more even with combustion gas mixing, guarantee that gas flow is even to the concentration that is total to the enterprise management net, avoid concentration height sometimes, the low and potential risk that forms of concentration sometimes, if concentration is low low when people can't discover, in case the leakage consequence is hardly imaginable; The formation of having stopped drop simultaneously is rotten turbid to gas pipeline.
Increased the magnetic level meter solve frangible, sealing rapid wear, leakage liquid, problem such as difficult in maintenance.
Description of drawings
The structural drawing of Fig. 1 prior art device for adding odor
The structural drawing of the automatic device for adding odor of Fig. 2 combustion gas
Fig. 3 closed loop adds smelly control flow chart
The structural drawing of the automatic device for adding odor of Fig. 4 nitrogen constant voltage sealing combustion gas
Fig. 5 active carbon absorbs the structural drawing that the automatic device for adding odor of combustion gas is closed in embedding
Fig. 6 grid vaporizer schematic representation
Embodiment
Below in conjunction with drawings and Examples the utility model is further described.
The 3-supply pipe is irritated in smelly dose of storage of 1-Raw material pail 2-
4-connects valve 5-in-line filter 6-metering pump
7-vaporizer 8-control system 9-signal conductor
Smelly dose of output tube 12-of 10-gas pipeline 11-mass flowmenter
The 13-active carbon absorbs irritates 14-inhalation valve 15-nitrogen bottle
The 16-level meter
The automatic device for adding odor of combustion gas shown in Figure 2, by Raw material pail 1, supply pipe 3, smelly dose of storage irritates 2, in-line filter 5, metering pump 6, smelly dose of output tube 11, vaporizer 7, gas pipeline 10, control system 8, connect valve 4, mass flowmenter is formed, Raw material pail 1 irritates 2 by supply pipe 3 with smelly dose of storage, connecting valve 4 is connected, smelly dose of used raw material is transported to smelly dose of storage irritates 2, smelly dose of storage irritated 2 and is connected with in-line filter 5, in-line filter 5 is connected with metering pump 6 simultaneously, metering pump 6 is connected with smelly dose of output tube 11, one end of mass flowmenter 12 is connected with smelly dose of output tube 11, the other end is connected with vaporizer 7, mass flowmenter 12 and control system 8 are connected by signal conductor, and vaporizer communicates with gas pipeline.
The automatic device for adding odor of described combustion gas, the vaporizer of this device for adding odor are grid vaporizer as shown in Figure 6, and this vaporizer adopts trellis work, the tubule of the intercommunication of networking, the micropore of certain density that distributes.The grid vaporizer makes smelly dose of volatilization rapider, and is more even with combustion gas mixing, guarantee that gas flow is even to the concentration that is total to the enterprise management net, avoid concentration height sometimes, the low and potential risk that forms of concentration sometimes, if concentration is low when people can't discover, in case the leakage consequence is hardly imaginable; The formation of having stopped drop simultaneously is rotten turbid to gas pipeline.
Smelly dose glide path: combustion gas is sneaked in Raw material pail → supply pipe → smelly dose of storage filling → in-line filter → metering pump → smelly dose of output tube → grid vaporizer → gas pipeline → volatilization
Increase mass flowmenter and can realize that closed loop adds smelly control, accurately add smelly, constant concentration.
Closed loop adds smelly control as shown in Figure 3, is the core forming control system with industrial computer or programmable controller.The be complementary metering pump of driving mode of configuration and the peripheral circuit that adapts at the needs of closed loop control, must measure smelly dose of output, with the metering signal input control system.Increase mass flowmenter, it is capable to realize that closed loop control adds bad luck, reaches and accurately adds odorant, constant concentration.The output flow that the mass flowmenter metering is smelly dose, give control system with smelly dose of output flow signal feed back, with compare by gathering the determined smelly dose of output flow of gas flow signal, calculate correction by control system, drive signal after output is adjusted then drives metering pump work by drive circuit at last.
Smelly in order to realize that closed loop accurately adds automatically, must gather gas flow signal, smelly dose of output flow signal, the standard odorizing amount that the combustion gas standard provides, and the single-stroke output quantity of user's self-calibration.Programme, calculate, control, export by following formula: the metering pump stroke frequency, according to the stroke frequency that calculates, the equally distributed pulse of output in the unit time, give drive circuit and drive metering pump work, each pulse makes finishes stroke action of metering pump, simultaneously, the smelly agent flux signal feed back of mass flowmenter collection is given control system.Compare with the needed smelly dose of adding quantity of the gas flow that collects, if output quantity is bigger than normal, then reduce stroke frequency, otherwise then increase number of strokes.Relatively, revise stroke frequency in real time, and then it is smelly to have realized that closed loop accurately adds automatically, constant concentration in real time.
The automatic device for adding odor of described combustion gas, the whole series of this device for adding odor add smelly system and move under nothing leakage closed state.
For the whole series that reach this device for adding odor add smelly system there not being the closed operation of leakage, two kinds of preferred versions are arranged.
Wherein a kind of scheme is: shown in Figure 4 is the automatic device for adding odor of nitrogen constant voltage sealing combustion gas, by nitrogen bottle 15, Raw material pail 1, supply pipe 3, smelly dose of storage irritates 2, in-line filter 5, metering pump 6, smelly dose of output tube 11, vaporizer 7, gas pipeline 10, control system 8, connect valve 4, mass flowmenter is formed, Raw material pail 1 irritates 2 by supply pipe 3 with smelly dose of storage, connecting valve 4 is connected, smelly dose of used raw material is transported to smelly dose of storage irritates 2, smelly dose of storage irritated 2 and is connected with in-line filter 5, in-line filter 5 is connected with metering pump 6 simultaneously, metering pump 6 is connected with smelly dose of output tube 11, one end of mass flowmenter 12 is connected with smelly dose of output tube 11, the other end is connected with vaporizer 7, mass flowmenter 12 and control system 8 are connected by signal conductor, and vaporizer communicates with gas pipeline.Wherein nitrogen bottle is connected with Raw material pail 1, can be charged to nitrogen in the Raw material pail.The nitrogen that Raw material pail is 1 li can fill in the smelly dose of storage filling, thereby nitrogen injection in the smelly dose of storage filling of this device for adding odor, form the sealing of nitrogen constant voltage, neither have smelly dose of saturated vapour and overflow, do not have air yet and enter smelly dose of storage filling, thereby realize that the whole series add smelly system and do not have the leakage closed operation.
Another scheme is: active carbon as shown in Figure 5 absorbs embedding and closes the automatic device for adding odor of combustion gas, by level meter 16 level meter magnetic level meter preferably wherein, inhalation valve 14, active carbon absorbs irritates 13, Emergeny Cutoff Valves, Raw material pail 1, supply pipe 3, smelly dose of storage irritates 2, in-line filter 5, metering pump 6, smelly dose of output tube 11, vaporizer 7, gas pipeline 10, control system 8, connect valve 4, mass flowmenter is formed, Raw material pail 1 irritates 2 by supply pipe 3 with smelly dose of storage, connecting valve 4 is connected, smelly dose of used raw material is transported to smelly dose of storage irritates 2, smelly dose of storage irritated 2 and is connected with in-line filter 5, in-line filter 5 is connected with metering pump 6 simultaneously, metering pump 6 is connected with smelly dose of output tube 11, one end of mass flowmenter 12 is connected with smelly dose of output tube 11, the other end is connected with vaporizer 7, mass flowmenter 12 and control system 8 are connected by signal conductor, and vaporizer communicates with gas pipeline.This device for adding odor increases level meter 16, inhalation valve 14, active carbon absorption filling 13, Emergeny Cutoff Valves, inhalation valve 14 is irritated 2 with smelly dose of storage and is connected, active carbon absorb to be irritated 13 and is connected with inhalation valve 14, inhalation valve 14 is diffused in the atmosphere in order to seal smelly dose of saturated air, active carbon absorbs irritates the smelly dose of saturated air gas that overflows after the 13 absorption overvoltages, adsorb the outside simultaneously and enter the smelly dose of airborne moisture of storage filling, thereby realize that the whole series add smelly system and do not have the leakage closed operation.
Smelly dose of saturated its glide path: smelly dose of storage filling → inhalation valve → active carbon absorbs filling → atmosphere
The air flows route: atmosphere → active carbon absorbs filling → inhalation valve → smelly dose of storage and irritates
By increasing the magnetic level meter, inhalation valve, active carbon absorb irritates, Emergeny Cutoff Valves, realized adding the closed operation of smelly system, effectively stoped overflowing of smelly dose of leakage and smelly dose of saturated vapour, promptly ensure safety in production, reached the purpose of environmental protection again, more effectively prevented false alarm and the crowd that brings is panic and the worry of the investigation leak source of combustion gas operation enterprise.
In the prior art, the general level meter that uses is a glass level gauge, change into now the magnetic level meter can solve frangible, sealing rapid wear, leakage liquid, problem such as difficult in maintenance.
The protection domain of this utility model patent is not limited to above-mentioned mode of execution.