CN104154377A - Pressure buffering device and regenerative combustion type waste gas treating device comprising pressure buffering device - Google Patents
Pressure buffering device and regenerative combustion type waste gas treating device comprising pressure buffering device Download PDFInfo
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- CN104154377A CN104154377A CN201410196521.9A CN201410196521A CN104154377A CN 104154377 A CN104154377 A CN 104154377A CN 201410196521 A CN201410196521 A CN 201410196521A CN 104154377 A CN104154377 A CN 104154377A
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- pressure
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- pressure buffer
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- regenerator
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/04—Devices damping pulsations or vibrations in fluids
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/02—Energy absorbers; Noise absorbers
- F16L55/027—Throttle passages
- F16L55/02709—Throttle passages in the form of perforated plates
- F16L55/02718—Throttle passages in the form of perforated plates placed transversely
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
- F23G7/06—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Incineration Of Waste (AREA)
- Pipe Accessories (AREA)
Abstract
The invention provides a pressure buffering device which can effectively absorb fluid pressure change generated in a pipe under the action of a treating device without increasing the pressure loss of the pipe connecting a fluid supply source to the treating device for treating the fluid. Besides, the invention provides a regenerative combustion type waste gas treating device which comprises the pressure buffering device and inhibits the increase of operation cost and the integral large size of equipment. The pressure buffering device comprises a chamber having a certain volume and including an inlet pipe and an output pipe at two ends; and perforation plates dividing the interior of the chamber into a plurality of spaces and having a plurality of punching holes or screen holes formed thereon. The interior of the chamber is divided into a plurality of pressure buffering chambers by the perforation plates arranged at specified intervals relative to the flowing direction of fluid, and pressure detecting elements for detecting inner pressures of the pressure buffering chambers are arranged in the central pressure buffering chambers other than the pressure chamber at the most upstream side and the pressure chamber at the most downstream side in the flowing direction of the fluid. The pressure buffering device is preferred to be arranged in the regenerative combustion type waste gas treating device as an example of treading devices.
Description
Technical field
The present invention relates to a kind of regenerative combustion type emission-control equipment that connects the pressure buffer device between fluid supply source and the pipeline for the treatment of device that this fluid is processed and comprise this pressure buffer device that is arranged on.
Background technique
Can be subject to emission limit set from the waste gas that contains volatile organic compound (V DEG C) of the discharges such as application factory.In these factories, in the time that the waste gas that contains volatile organic compound is carried out to resolution process, for example, use the regenerative combustion type emission-control equipment 1'(shown in Fig. 6 for example with reference to patent documentation 1).
Above-mentioned regenerative combustion type emission-control equipment 1' is by firing chamber 3, three regenerator (5A, 5B, 5C), processed gas supply pipe 7 (processed gas supply stream), process gas exhaust pipe 8 (processing gas exhaust stream) and purge gas and extract pipe 9 (purge gas stream) formation out, wherein, above-mentioned firing chamber 3 has burner 2, above-mentioned three regenerator (5A, 5B, 5C) be communicated with above-mentioned firing chamber 3 respectively, and be built-in with separately heat retainer 4, above-mentioned processed gas supply pipe 7 is communicated with fan 6, and the illustrated waste gas that contains volatile organic compound (hereinafter referred to as " processed gas ") supply source is never supplied with to the processed gas that comes via regenerator arbitrarily, for example 5A supplies with to firing chamber 3, above-mentioned processing gas exhaust pipe 8 will be through adding thermolysis (oxidation Decomposition) processing gas after treatment via another regenerator in firing chamber 3, for example 5B carries out exhaust, above-mentioned purge gas is extracted a part for the processing gas of pipe 9 after burning completes out as purge gas, via processed gas in preposition operation the regenerator of process, for example 5C is back to the upstream side of fan 6.
As shown in Figure 6, on processed gas supply pipe 7, be provided with the first open and close valve 1OA, 10B, 10C.On processing gas flue gas leading 8, be provided with the second open and close valve 11A, 11B, 11C.Extract out on pipe 9 and be provided with the 3rd open and close valve 12A, 12B, 12C at purge gas.In addition, extract out on pipe 9 and be provided with modulating valve 13 at purge gas, this modulating valve 13 regulates valve opening so that the flow of purge gas keeps constant.In addition, import stream 14 at the processed gas being connected with the suction side of fan 6 and extract the upstream side of the confluence of pipe 9 out with purge gas, be provided with processed air supply valve 15.
The processing that utilizes above-mentioned regenerative combustion type emission-control equipment 1' to carry out processed gas is carried out in the following manner.First the processed gas that, never illustrated processed gas supply source supply comes imports the suction side of fan 6 via processed air supply valve 15.Then, supply with the processed gas coming after being supplied to regenerator three regenerator 5A, 5B, 5C, accumulation of heat in preposition operation, for example 5A from processed gas supply pipe 7 from fan 6, be preheated by carrying out heat exchange with the heat retainer 4 of this regenerator 5A, thereby import firing chamber 3 (processed gas supply operation).
Then, the organic principle of processed gas is heated resolution process in firing chamber 3, and becomes for example processing gas of 80O DEG C.Then, the processing gas of high temperature is through regenerator, for example 5B because lowering the temperature with the heat exchange of processed gas in preposition operation, and carrying out heat exchange and cooling to after 100 DEG C～150 DEG C with the heat retainer 4 of this regenerator 5B, from processing gas exhaust pipe 8 to airborne release (processing gas exhaust operation).
In addition, a part for the processing gas generating in firing chamber 3 is as purge gas, be fed in preposition operation processed gas the regenerator, the heat retainer 4 of for example 5C of process, after the processed gas that contains organic compound that residues in these heat retainer 4 inside is removed, purge gas is extracted pipe 9 out and is back to processed gas importing stream 14 (purging operation) via purge gas.In addition, except as mentioned above a part of processing gas being used as purge gas, the clean air that purge gas also uses the supplies such as the fan from arranging separately sometimes.
Then, the first open and close valve 1OA, 10B, 10C, the second open and close valve 11A, 11B, 11C, the 3rd open and close valve 12A, 12B, 12C switched every the stipulated time., for example, after the stipulated time (1 minute), by the first open and close valve 10A, the second open and close valve 11B and the 3rd open and close valve 12C switch to " pass " from " opening ", by the first open and close valve 10B, the second open and close valve 11C and the 3rd open and close valve 12A switch to " opening " from " pass ", processed gas is supplied to from processed gas supply pipe 7 heat retainer 4 that passes through the regenerator 5B that processes gas-heated preposition operation, and by after being preheated with the heat exchange of heat retainer 4, in firing chamber 3, interior heated decomposition (oxidation Decomposition) is processed, the regenerator 5C that above-mentioned processing gas is purged from preposition operation is via the second open and close valve 11C and process gas exhaust pipe 8 and to airborne release.
On the other hand, a part for the processing gas generating in firing chamber 3 is used as purge gas and is supplied to regenerator 5A.After the processed gas that contains organic compound of purge gas in removal residues in heat retainer 4, extract pipe 9 out and be back to processed gas importing stream 14 via the 3rd open and close valve 12A and purge gas.Then, through after the stipulated time, switch each open and close valve, supply with operation to carry out respectively processed gas in regenerator 5C, in regenerator 5A, process gas waste gas operation, in the second regenerator 5B, purge operation.In the operation of regenerative combustion type emission-control equipment 1 ', make to switch successively between each regenerator 5A, 5B and 5C every the stipulated time the lasting stipulated time of action that processed gas is supplied with operation, processed gas exhaust operation and purging operation like this.
Prior art document
Patent documentation
Patent documentation 1: Japanese Patent Laid-Open 2011-102664 communique
Supply with in operation at the processed gas of above-mentioned regenerative combustion type emission-control equipment 1 ', by the switch motion of the first open and close valve 1OA, 10B and 10C, carry out be connected (switching that is the stream of processed gas) of arbitrary regenerator in each regenerator 5A, 5B, 5C and processed gas supply pipe 7.
But the pressure oscillation meeting that the switch motion of the first open and close valve 1OA, 10B and 10C brings is passed to the pipeline that regenerative combustion type emission-control equipment 1 ' is connected with processed gas supply source.For example can be on banded base film in the generation source (production line) of processed gas in the time that pressure oscillation in pipeline increases the coating machine of coated with resins solution, exist to make base film shake and cannot keep stable state etc. to bring dysgenic problem to production line.
In order to address the above problem, for example can consider to adopt indentation ground arrangement of baffles in pipeline to make the mobile cranky of processed gas, relax the method for pressure oscillation to produce the larger pressure loss in pipeline, also or adopt in pipeline way the intakeport that atmosphere is attracted is set, and atmosphere is attracted to relax the method for pressure oscillation when make to be negative pressure in pipeline because of pressure oscillation.
But, for the former in said method, owing to producing the larger pressure loss in pipeline, therefore, need the fan that power is larger, exist and make thus power consumption increase such problem.In addition, for the latter in said method, owing to using atmosphere to dilute processed gas, therefore, can make the treating capacity of processed gas increase, cause thus the scale of the accessorys such as firing chamber 3, regenerator 5A, 5B, 5C to maximize, consequently, have Whole Equipment such problem that maximizes.
Summary of the invention
Therefore, the object of the invention is to, a kind of pressure buffer device is provided, can increase the pressure loss of the pipeline of the treatment device that connects fluid supply source and this fluid is processed, and can effectively absorb the hydrodynamic pressure variation producing because of the action for the treatment of device in pipeline.
In addition, another object of the present invention is to provide a kind of regenerative combustion type emission-control equipment, owing to comprising above-mentioned pressure buffer device, therefore, can suppress the increase of operating cost and the maximization of Whole Equipment.
Pressure buffer device of the present invention is arranged between the pipeline of the treatment device that connects fluid supply source and this fluid is processed, and the hydrodynamic pressure variation that the action because of above-mentioned treatment device is produced in above-mentioned pipeline absorbs.Above-mentioned pressure buffer device has: chamber, is provided with respectively the inlet duct flowing into for above-mentioned fluid and the outer pipe that supplies this fluid expulsion, and has a constant volume at the two end part of this chamber; And porous slab, this porous slab will be divided into multiple spaces in above-mentioned chamber, and is formed with many punching hole or sieve aperture.By the flow direction of above-mentioned porous slab and above-mentioned fluid is relatively configured with predetermined distance, thereby multiple pressure buffer chambers will be formed in above-mentioned chamber.
In addition, comparatively it is desirable to, pressure buffer chamber except being arranged in the upstream side of flow direction of above-mentioned fluid and the pressure buffer chamber in downstream side, that be positioned at central part in multiple above-mentioned pressure buffer chambers, be provided with the pressure detecting element detecting compressing into row in this pressure buffer chamber, and being provided with atmosphere introducing element at the pressure buffer chamber in the downstream side of the flow direction of above-mentioned fluid, this atmosphere introducing element attracts atmosphere in the time driving in the indoor generation negative pressure of this pressure buffer because of above-mentioned treatment device.
In addition, regenerative combustion type emission-control equipment of the present invention comprises: firing chamber, and this firing chamber has burner; Plural regenerator, these regenerator are communicated with above-mentioned firing chamber respectively, and have heat retainer separately; Processed gas is supplied with stream, in supplying with stream, this processed gas is provided with fan, make to supply with the processed gas coming through regenerator above-mentioned regenerator, accumulation of heat in preposition operation from fluid supply source, by making the heat retainer of above-mentioned processed gas and above-mentioned regenerator carry out heat exchange, it is carried out to preheating, and above-mentioned processed gas is supplied with to above-mentioned firing chamber; Process gas exhaust stream, in this processing gas exhaust stream, make in the above-mentioned firing chamber processing gas after heating and decomposition treatment through regenerator in above-mentioned regenerator, because lowering the temperature with the heat exchange of above-mentioned processed gas in preposition operation, make its cooling by making the heat retainer of above-mentioned processing gas and above-mentioned regenerator carry out heat exchange, and by above-mentioned processing gas discharging; Purge gas stream, in this purge gas stream, by purge gas be supplied in preposition operation above-mentioned processed gas the heat retainer of regenerator of process; Switching mechanism, this switching mechanism switches successively supply, the exhaust of above-mentioned processing gas and the supply of above-mentioned purge gas of above-mentioned processed gas between each above-mentioned regenerator; And above-mentioned pressure buffer device.
Comparatively it is desirable to, based on the force value of described pressure detecting element, the rotating speed of described fan is controlled, so that the interior pressure of the pressure buffer chamber of described central part remains in predetermined pressure range.
According to the present invention, a kind of pressure loss of the pipeline that can not increase the treatment device that connects fluid supply source and this fluid is processed can be provided, and can effectively absorb the pressure buffer device of the hydrodynamic pressure variation producing because of the action for the treatment of device in pipeline.
In addition, can provide a kind of owing to comprising above-mentioned pressure buffer device, therefore can suppress the regenerative combustion type emission-control equipment of the increase of operating cost and the maximization of Whole Equipment.
Brief description of the drawings
Fig. 1 (a) is the sectional view of the pressure buffer device of embodiment of the present invention, Fig. 1 (b) is an A-A sectional view example, Fig. 1 (a) that represents porous slab, and Fig. 1 (c) is A-A sectional view variation, Fig. 1 (a) that represents porous slab.
Fig. 2 is the oscillogram that the pressure oscillation reduction state to being brought by the pressure buffer device of Fig. 1 describes.
Fig. 3 is the schematic configuration diagram of the regenerative combustion type emission-control equipment of embodiment of the present invention.
Fig. 4 is the sectional view of the pressure buffer device that arranges in the regenerative combustion type emission-control equipment shown in Fig. 3 and to the processed gas figure that mobile state describes in above-mentioned pressure buffer device.
Fig. 5 has to utilize revolving switch valve (distributing valve) to switch and the schematic configuration diagram of the regenerative combustion type emission-control equipment of the structure being connected of each regenerator.
Fig. 6 is the schematic configuration diagram of existing regenerative combustion type emission-control equipment.
(symbol description)
1 regenerative combustion type emission-control equipment
2 burners
3 firing chambers
4 heat retainers
5A～5C regenerator
6 fans
7 processed gas supply pipes
8 process gas exhaust pipe
9 purge gas are extracted pipe out
14 processed gases import stream
20 pressure buffer devices
21 chambers
22 inlet ducts
23 outer pipes
29 porous slabs
40 pressure meters
42 modulating valve
60 pressure regulators
62 frequency variators
210 first pressure buffer chambers
211 second pressure buffer chambers
212 the 3rd pressure buffer chambers
Embodiment
Below, according to accompanying drawing, the pressure buffer device of embodiment of the present invention is described.In the following description, adopt for convenience of description the word (for example " upstream " or " downstream " etc.) that represents direction and position, they are for making to invent easy understanding, not because the implication of these words produces and limits technical scope of the present invention.In addition, the following description is only an embodiment of the present invention, is not intended to applicable object of the present invention or its purposes to limit.
The pressure buffer device of embodiments of the present invention is arranged between the pipeline (all not shown) of the treatment device that connects fluid supply source and this fluid is processed, and the hydrodynamic pressure variation producing in pipeline because of the action for the treatment of device is absorbed.
As shown in Fig. 1 (a), pressure buffer device 20 comprises: as the chamber cylindraceous 21 (fluid chamber) of pressure buffer chamber with a constant volume; Be arranged at the inlet duct 22 of the inlet side end 25 of chamber 21; And be arranged at the outer pipe 23 of the outlet side end 27 of above-mentioned chamber 21.At this, upstream side represents the supply source of processed gas 24, and downstream side represents treatment device (for example regenerative combustion type emission-control equipment) side, i.e. pressure oscillation generation source.
The flange 26 that the inlet side end 25 of chamber 21 is mounted inlet duct 22 seals.The flange 28 that the outlet side end 27 of chamber 21 is similarly mounted outer pipe 23 seals.As shown in the figure, the cross-section area of chamber 21 is arranged to larger than the cross-section area of inlet duct 22 and outer pipe 23.Specifically, comparatively it is desirable to, the cross-section area of chamber 21 is cross-section area about more than 10 times of inlet duct 22 and outer pipe 23.
In the inside of chamber 21, relatively dispose porous slab 29 with predetermined distance with the flow direction of processed gas 24.
As shown in the figure, in the present embodiment, utilize two porous plates 29, the inside of chamber 21 is divided into the first pressure buffer chamber 210, the second pressure buffer chamber 211 and the 3rd pressure buffer chamber 212 these three pressure buffer chambers successively from upstream side.
Porous slab 29 entirety are formed as discoideus.The external diameter of above-mentioned porous slab 29 is formed as the size roughly equal with the internal diameter of chamber 21, and, install with the periphery of this porous slab 29 and the mode contacting in interior week of chamber 21.
Porous slab 29 can use the punched-plate with multiple punching hole (aperture) 290 shown in Fig. 1 (b), or uses the sieve tray with latticed opening (sieve aperture portion) 291 shown in Fig. 1 (c).The opening rate (opening portion is with respect to the Area Ratio of punched-plate or sieve tray entirety) of porous slab 29 is determined along with the degree of pressure oscillation, but increases for fear of the pressure loss, is generally preferably 50%～60% opening rate.In the pressure buffer device 20 of present embodiment, adopt the punched-plate that opening rate is 51%.
The material that forms chamber 21, inlet duct 22, outer pipe 23 and porous slab 29 is the metallic material such as iron, stainless steel, aluminium, copper.In addition, consider corrosion resistance, also can form above-mentioned each parts by stainless steel materials such as such as SUS316.In addition, in the present embodiment, exemplified with chamber 21 cylindraceous, still, for example, can be also rectangular-shaped chamber 21, not circumscribed of its shape.The shape of porous slab 29 also can be along with the alteration of form of chamber 21, and this point is self-evident.
Then, to being described by the above-mentioned effect that forms the pressure buffer device 20 forming.As shown in Fig. 2 (a), transmit the resistance of the resistance of the porous slab 29 of the pressure oscillation of pulsed coming in the expansion of the flow path cross sectional area by from outer pipe 23 to the 3rd pressure buffer chamber 212, while moving from the 3rd pressure buffer chamber 212 to the second pressure buffer chamber 211, porous slab 29 while moving from the second pressure buffer chamber 211 to the first pressure buffer chamber 210, dwindling of flow path cross sectional area from from the first pressure buffer chamber 210 to inlet duct 22 from pressure oscillation generation source and relaxed, thereby reducing transmission from source to fluid that supply with.Like this, pressure oscillation is by the combination of the capacity of the first to the 3rd pressure buffer chamber 210,211,212 and the resistance that brought by porous slab 29, and effectively absorbed, thereby as shown in Fig. 2 (b), can make pulse amplitude relax.
Then,, according to accompanying drawing, the regenerative combustion type emission-control equipment that comprises pressure buffer device of the present invention is described.Fig. 3 represents the schematic construction of the regenerative combustion type emission-control equipment 1 of present embodiment.This regenerative combustion type emission-control equipment 1 comprises: firing chamber 3, in this firing chamber 3, with burner 2, processed gas is heated the organic compounds such as VOC to containing in this processed gas and add thermolysis (oxidation Decomposition) and process; And three regenerator 5A, 5B, 5C, these three regenerator 5A, 5B, 5C are accommodated with and the heat retainer 4 that carries out heat exchange by the processed gas after 3 heating of above-mentioned firing chamber, and above-mentioned regenerative combustion type emission-control equipment 1 is configured to the regenerative combustion type emission-control equipment of so-called three-tower type.
As shown in the figure, because the basic structure of the regenerative combustion type emission-control equipment 1 of present embodiment is with identical at regenerative combustion type emission-control equipment 1 ' illustrated in fig. 6, therefore, to identical structure division mark same-sign, and the description thereof will be omitted.
As shown in Figure 3, in the firing chamber 3 of regenerative combustion type emission-control equipment 1, be provided with the thermometer 30 that the temperature in this firing chamber 3 is measured.Thermometer 30 is electrically connected with duct thermostat 31, and duct thermostat 31 is electrically connected with burner 2.Duct thermostat 31 has preset for example, the upper limit, lower limit set value for the temperature in firing chamber 3 being controlled to set point of temperature (820 DEG C), this setting value and the temperature signal being detected by thermometer 30 are compared, and according to its deviation, control signal is carried out to PID computing, thereby the combustion power to burner 2 (Japanese: combustion baked capacity) is controlled.Specifically, carry out open as follows-closing control, the temperature in firing chamber 3 is from controlling take fire while the dropping to 800 DEG C burning of device 2 of temperature, and the temperature in firing chamber 3 stops the burning of burner 2 when controlling temperature rise to 840 DEG C.
VOC concentration at the processed gas that is supplied to regenerative combustion type emission-control equipment 1 is for example, high concentration (3000～5000ppm), and the temperature of firing chamber 3 rises gradually because of the solvent heat containing in processed gas.If this state continues, the temperature of firing chamber 3 can further rise, and makes the temperature of firing chamber 3 will become difficulty.Thereby, in firing chamber 3, be provided with hot bypass valve 34, this hot bypass valve 34 discharges from liberation port 32 combustion gas of a part of high temperature via hot bypass flow path 33, the processed gas between fan 6 and processed air supply valve 15 imports in stream 14 and is connected with dilution valves 35.
As shown in the figure, hot bypass valve 34 and dilution valves 35 are electrically connected with duct thermostat 31, in the temperature of firing chamber 3 because of the solvent heat containing in processed gas rises to for example more than 880 DEG C, hot bypass valve 34 is opened, the combustion gas of a part of high temperature are discharged via hot bypass flow path 33 from liberation port 32, rise with the excessive temperature that prevents firing chamber 3.
Even if in the case of the temperature of firing chamber 3 still rises like this, by dilution valves 35 is opened to introduce extraneous gas, after by the concentration dilution of processed gas, be supplied to regenerative combustion type emission-control equipment 1, prevent that by this excessive temperature of firing chamber 3 from rising.
Then, the feature of the regenerative combustion type emission-control equipment 1 to present embodiment describes.As shown in Figure 3, import in stream 14 at the processed gas that the processed gas supply fan 52 being communicated with processed gas supply source 50 is connected with processed air supply valve 15, be provided with pressure buffer device 20.
The pressure buffer device 20 that the regenerative combustion type emission-control equipment 1 of present embodiment has is the second pressure buffer chamber 211 except being arranged in first pressure buffer chamber 210 of upstream side of flow direction of processed gas and the 3rd pressure buffer chamber 212 in downstream side, that be positioned at central part in the first pressure buffer chamber 210, the second pressure buffer chamber 211 and the 3rd pressure buffer chamber 212, is provided with the pressure meter 40 (pressure detecting element) detecting compressing into row in this second pressure buffer chamber 211.
Above-mentioned what is called " is provided with the pressure buffer chamber that is positioned at central part of pressure meter 40 " and not only comprises as except the pressure buffer chamber that is positioned at upstream side be positioned at the pressure buffer chamber in downstream side this literal meaning, be arranged in central pressure buffer chamber and arranging the situation of pressure meter 40, be also included in and be arranged in the pressure buffer chamber of upstream side and be arranged in pressure buffer chamber that any one party of pressure buffer chamber in downstream side is adjacent the situation that pressure meter 40 is set.In addition, in the time that the quantity of pressure buffer chamber is for example split into four, both all arrange pressure meter 40 and obtain the situation of their mean value to be also included in the second pressure buffer chamber and the 3rd pressure buffer chamber.
In the present embodiment, as shown in Figure 4, pressure buffer device 20 has the pressure meter 40 and the modulating valve 42 (atmosphere gatherer) being connected with the 3rd pressure buffer chamber 212 that detect compressing into row in the second pressure buffer chamber 211.
Pressure meter 40 is known digital pressure recorders, there is not shown pressure transducer, battery and component in inside, after converting the pressure signal being detected by pressure transducer to numeric data, in display unit 43, show, and this pressure signal is exported to outside via not shown signaling line.
Modulating valve 42 is made up of valve body 44 and control apparatus 45, and wherein, above-mentioned valve body 44 is made up of fly valve, and above-mentioned control apparatus 45 regulates the aperture of valve body 44.In addition, valve body 44 is set as predetermined valve opening.This be due to, when the pressure oscillation of the driving generation moment because of regenerative combustion type emission-control equipment 1, and in the time of the interior generation high negative of the 3rd pressure buffer chamber 212, return to regime values by importing the interior interior pressure that makes the 3rd pressure buffer chamber 212 of the 3rd pressure buffer chamber 212 with the corresponding extraneous gas of this high negative value.For the setting position of modulating valve 42, can carry out pressure oscillation under the early stage prerequisite suppressing, be preferably disposed on the generation source (treatment device) of the most close pressure oscillation, i.e. the 3rd pressure buffer chamber 212 1 sides.About these, will in action specification described later, be elaborated.
Get back to Fig. 3, pressure meter 40 is electrically connected with pressure regulator 60, and the pressure signal of the interior pressure of expression the second pressure buffer chamber 211 being detected by pressure meter 40 is output to pressure regulator 60.The upper limit, lower limit set value in pressure regulator 60, are preset, this upper limit, lower limit set value for when normal by the interior voltage-controlled scope that is made as for example-5Pa slightly lower than barometric pressure～-1Pa of the second pressure buffer chamber 211 in, this setting value and the pressure signal being detected by pressure meter 40 are compared, and according to its deviation, control signal is carried out to PID computing.Between the drive motor of fan 6 and power supply (all not shown), be provided with frequency variator 62.Frequency variator 62 is controlled the driving of fan 6, makes its rotating speed corresponding with the control signal of inputting from pressure regulator 60.
At this, to the interior pressure of the second pressure buffer chamber 211 is illustrated as follows as the reason of control object.As shown in Figure 4, in the first pressure buffer chamber 210, the velocity distribution that flows into the processed gas in the first pressure buffer chamber 210 from inlet duct 22 becomes large near center.In addition, because the impact of the eddy current producing occurs to collide processed gas and porous slab 29, and cannot obtain stable static pressure.
In addition, in the 3rd pressure buffer chamber 212, processed gas is because being temporarily rectified through the punching hole 290 of porous slab 29, but, when the pressure oscillation of the driving generation moment because of regenerative combustion type emission-control equipment 1, and for example make in the 3rd pressure buffer chamber 212 in the situation for malleation, the mobile of the processed gas after rectification gets muddled, thereby cannot obtain stable static pressure.In addition, when being for example in the situation of higher negative pressure in the 3rd pressure buffer chamber 212, flow in the 3rd pressure buffer chamber 212, therefore owing to being worth corresponding extraneous gas with this high negative, can make the mobile of processed gas after rectification get muddled, thereby cannot obtain stable static pressure.
Like this, if using obtaining interior pressure in the first pressure buffer chamber 210 of stable static pressure, the 3rd pressure buffer chamber 212 as control object, be difficult to realize high-precision control.
On the other side, because the porous slab 29 that is configured in upstream side and downstream side in the second pressure buffer chamber 211 inside is separated, therefore, be not easy to be subject to the impact that the first pressure buffer chamber 210, the inner static pressure producing of the 3rd pressure buffer chamber 212 get muddled.And processed gas is because being rectified through the punching hole 290 of porous slab 29, and the velocity distribution of the processed gas of the second pressure buffer chamber 211 inside is diagram and roughly distributes uniformly in this wise, thereby can obtain stable static pressure.
Like this, by using the interior pressure that is not easy the second pressure buffer chamber 211 that is subject to the impact of the first pressure buffer chamber 210, the 3rd pressure buffer chamber 212 and can obtains stable static pressure as control object, thereby can realize high-precision control.
In addition, the pressure buffer device that the regenerative combustion type emission-control equipment 1 of present embodiment has can be also the pressure buffer device in form illustrated in fig. 1.
Then,, with reference to Fig. 3, Fig. 4, the action that suppresses the pressure oscillation producing from this regenerative combustion type emission-control equipment 1 in the regenerative combustion type emission-control equipment 1 of present embodiment is described.In addition, because the conventional treatment (processed gas is supplied with operation, processes gas exhaust operation and purged operation) of the processed gas in regenerative combustion type emission-control equipment 1 is identical with the conventional treatment in the regenerative combustion type emission-control equipment 1 ' describing in Fig. 6, therefore, again do not illustrate at this.
First, the firing chamber 3 of regenerative combustion type emission-control equipment 1 is warmed up to set point of temperature by burner 2, and processed gas flow to be dealt with is the specified treating capacity of regenerative combustion type emission-control equipment 1.
The interior pressure of the second pressure buffer chamber 211 of pressure buffer device 20 detects by pressure meter 40, and the pressure signal detecting is outputed to pressure regulator 60.Under normal state, pressure regulator 60 is controlled the rotating speed of fan 6 by frequency variator 62 so that the interior pressure of the second pressure buffer chamber 211 remain on than barometric pressure slightly low-scope of 5Pa～-1Pa in.Now, because the interior pressure of the 3rd pressure buffer chamber 212 also remains the pressure roughly equal with the second pressure buffer chamber 211, therefore, continue to flow in the 3rd pressure buffer chamber 212 via modulating valve 42 with the corresponding a small amount of extraneous gas of this pressure.
At this, when the interior pressure of the 3rd pressure buffer chamber 212 for example produces for-high negative value below 5Pa in detected pressures in the second pressure buffer chamber 211 situation lower than the pressure oscillation of lower limit set value (5Pa), be worth corresponding extraneous gas with this high negative and attracted to the 3rd pressure buffer chamber 212 via modulating valve 42.Utilize and attract to the said external gas of the 3rd pressure buffer chamber 212, make the second pressure buffer chamber 211 in press off and begin to get back to appropriate value.Then the control signal that, to frequency variator 62 outputs, the rotating speed of fan 6 is reduced from pressure regulator 60.Frequency variator 62 is controlled the rotating speed of fan 6, so that its rotating speed is corresponding with this control signal of inputting from pressure regulator 60.By this, the interior pressure of the second pressure buffer chamber 211 is promptly got back to suitable pressure range (5Pa～-1Pa).
In addition, for example rise to when pressing in the 3rd pressure buffer chamber 212-more than 1Pa, and when producing detected pressures in the second pressure buffer chamber 211 and exceeding the pressure oscillation of upper limit set value (1Pa) when (now extraneous gas flows into the 3rd pressure buffer chamber 212 hardly), the output signal that to frequency variator 62 outputs, the rotating speed of fan 6 is increased from pressure regulator 60, this frequency variator 62 is controlled the rotating speed of fan 6, so that its rotating speed is corresponding with this control signal of inputting from pressure regulator 60.By this, the interior pressure of the second pressure buffer chamber 211 is promptly got back to proper range (5Pa～-1Pa).
Like this, in the regenerative combustion type emission-control equipment 1 of present embodiment, except the expansion of the flow path cross sectional area by pressure buffer device 20, outside the cushioning effect that dwindles brought pressure oscillation of the resistance of porous slab 29 and flow path cross sectional area, also add and will be not easy to be subject to from the first pressure buffer chamber 210, the 3rd pressure buffer chamber 212 affect and can obtain stable static pressure the second pressure buffer chamber 211 interior pressure-controlled to than barometric pressure slightly low-scope of 5Pa～-1Pa in, and flow into the Overlay of a small amount of extraneous gas of the 3rd pressure buffer chamber 212 etc. via modulating valve 42, thereby can effectively suppress to be passed to processed gas and import the fluctuation of the pressure oscillation of stream 14.Consequently, can effectively suppress the pressure oscillation in the generation source (production line) 50 that is passed to processed gas.
In addition, in the control of the interior pressure of the second pressure buffer chamber 211, although can continue to flow into the 3rd pressure buffer chamber 212 with the corresponding extraneous gas of size of this pressure, but, because the amount of the extraneous gas flowing into is less, therefore, can not make the treating capacity of processed gas increase.By this, can suppress the increase of operating cost and the maximization of Whole Equipment.
In addition, in the present embodiment, describe exemplified with the regenerative combustion type emission-control equipment of three-tower type, still, the present invention is not limited thereto, and can be applicable to equally have the regenerative combustion type emission-control equipment of two above regenerator.In addition, may not be as present embodiment so multiple open and close valves be set on each in each regenerator, also can be as shown in Figure 5, be applicable to use a revolving switch valve (distributing valve) 70 to switch and the regenerative combustion type emission-control equipment 100 that be connected, rotating transfer valve type of each regenerator 5A, 5B, 5C, 5D.
Claims (4)
1. a pressure buffer device, is arranged between the pipeline of the treatment device that connects fluid supply source and this fluid is processed,
The hydrodynamic pressure variation that action because of described treatment device is produced in described pipeline absorbs,
It is characterized in that having:
Chamber, is provided with respectively the inlet duct flowing into for described fluid and the outer pipe that supplies this fluid expulsion, and has a constant volume at the two end part of this chamber; And
Porous slab, this porous slab will be divided into multiple spaces in described chamber, and is formed with many punching hole or sieve aperture,
By making the flow direction of described porous slab and described fluid relatively with predetermined distance configuration, thereby multiple pressure buffer chambers will be formed in described chamber.
2. pressure buffer device as claimed in claim 1, is characterized in that,
Pressure buffer chamber except being arranged in the upstream side of flow direction of described fluid and the pressure buffer chamber in downstream side, that be positioned at central part in multiple described pressure buffer chambers, be provided with the pressure detecting element detecting compressing into row in this pressure buffer chamber
Pressure buffer chamber in the downstream side of the flow direction of described fluid is provided with atmosphere introducing element, and this atmosphere introducing element attracts atmosphere in the time driving in the indoor generation negative pressure of this pressure buffer because of described treatment device.
3. a regenerative combustion type emission-control equipment, is characterized in that, comprising:
Firing chamber, this firing chamber has burner;
Plural regenerator, these regenerator are communicated with described firing chamber respectively, and have heat retainer separately;
Processed gas is supplied with stream, in supplying with stream, this processed gas is provided with fan, make to supply with the processed gas coming through regenerator described regenerator, accumulation of heat in preposition operation from fluid supply source, by making the heat retainer of described processed gas and described regenerator carry out heat exchange, it is carried out to preheating, and described processed gas is supplied with to described firing chamber;
Process gas exhaust stream, in this processing gas exhaust stream, make in the described firing chamber processing gas after heating and decomposition treatment through regenerator in described regenerator, because lowering the temperature with the heat exchange of described processed gas in preposition operation, make its cooling by making the heat retainer of described processing gas and described regenerator carry out heat exchange, and by described processing gas discharging;
Purge gas stream, in this purge gas stream, by purge gas be supplied to processed gas described in preposition operation the heat retainer of regenerator of process;
Switching mechanism, this switching mechanism switches successively supply, the exhaust of described processing gas and the supply of described purge gas of described processed gas between each described regenerator; And
Pressure buffer device described in claim 1 or 2.
4. regenerative combustion type emission-control equipment as claimed in claim 3, it is characterized in that, based on the force value of described pressure detecting element, the rotating speed of described fan is controlled, so that the interior pressure of the pressure buffer chamber of described central part remains in predetermined pressure range.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013-101555 | 2013-05-13 | ||
| JP2013101555A JP5616481B1 (en) | 2013-05-13 | 2013-05-13 | Pressure buffer device, heat storage combustion exhaust gas treatment device equipped with the pressure buffer device |
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| CN104154377A true CN104154377A (en) | 2014-11-19 |
| CN104154377B CN104154377B (en) | 2017-08-25 |
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| CN (1) | CN104154377B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117433025A (en) * | 2023-12-18 | 2024-01-23 | 昆山千友工业环保设备有限公司 | Waste heat recovery device for RTO waste gas treatment |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6081431B2 (en) * | 2014-11-05 | 2017-02-15 | 本田技研工業株式会社 | Differential pressure type high pressure water electrolyzer |
| JP6295385B1 (en) * | 2017-04-07 | 2018-03-14 | 清 高浦 | Compressed air pressure stabilizer in air cylinder exhaust chamber |
| CN111102424A (en) * | 2018-10-29 | 2020-05-05 | 宁波方太厨具有限公司 | Vibration damper and booster pump with same |
| KR102150372B1 (en) * | 2019-03-21 | 2020-09-01 | (주)대주기계 | Pressure stabilization device using double porous plates |
| CN114439551B (en) * | 2020-10-30 | 2024-05-10 | 中国航发商用航空发动机有限责任公司 | Aero-engine |
| CN117570455A (en) * | 2023-12-23 | 2024-02-20 | 山东瀚圣新能源科技股份有限公司 | Evaporation tail gas heat recovery device for formaldehyde production |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4130173A (en) * | 1971-10-01 | 1978-12-19 | Vought Corporation | Apparatus and method for reducing flow disturbances in a flowing stream of compressible fluid |
| JPH08110018A (en) * | 1994-08-17 | 1996-04-30 | W R Grace & Co | Circular air distributor for regenerated-heat oxidizing device |
| JP2003505660A (en) * | 1999-07-26 | 2003-02-12 | タプコ インタナシャナル，インコーポレイテッド | Improved assembly of orifice chamber |
| JP2003130323A (en) * | 2001-10-25 | 2003-05-08 | Babcock Hitachi Kk | Rotating distribution type thermal storage combustion device |
| CN1710334A (en) * | 2005-07-11 | 2005-12-21 | 北京理工大学 | High temperature gas rapid cooling device and cooling method |
| JP2011102664A (en) * | 2009-11-10 | 2011-05-26 | Chugai Ro Co Ltd | Heat storage type combustion deodorizer |
-
2013
- 2013-05-13 JP JP2013101555A patent/JP5616481B1/en active Active
-
2014
- 2014-05-09 CN CN201410196521.9A patent/CN104154377B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4130173A (en) * | 1971-10-01 | 1978-12-19 | Vought Corporation | Apparatus and method for reducing flow disturbances in a flowing stream of compressible fluid |
| JPH08110018A (en) * | 1994-08-17 | 1996-04-30 | W R Grace & Co | Circular air distributor for regenerated-heat oxidizing device |
| JP2003505660A (en) * | 1999-07-26 | 2003-02-12 | タプコ インタナシャナル，インコーポレイテッド | Improved assembly of orifice chamber |
| JP2003130323A (en) * | 2001-10-25 | 2003-05-08 | Babcock Hitachi Kk | Rotating distribution type thermal storage combustion device |
| CN1710334A (en) * | 2005-07-11 | 2005-12-21 | 北京理工大学 | High temperature gas rapid cooling device and cooling method |
| JP2011102664A (en) * | 2009-11-10 | 2011-05-26 | Chugai Ro Co Ltd | Heat storage type combustion deodorizer |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117433025A (en) * | 2023-12-18 | 2024-01-23 | 昆山千友工业环保设备有限公司 | Waste heat recovery device for RTO waste gas treatment |
| CN117433025B (en) * | 2023-12-18 | 2024-02-23 | 昆山千友工业环保设备有限公司 | Waste heat recovery device for RTO waste gas treatment |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5616481B1 (en) | 2014-10-29 |
| JP2014222086A (en) | 2014-11-27 |
| CN104154377B (en) | 2017-08-25 |
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