TWI681810B - Decontamination circulation filter system - Google Patents

Abstract

A decontamination circulation filter system is mainly composed of a filter pipe, a filter medium, a dual fluid circulator and a rear filter medium; the filter pipe provides a heat flow containing pollutants to enter; the filter medium provides the The heat flow flows into the bottom surface to filter the contaminants, and at the same time discharges the primary contaminants on the top surface; the two-fluid circulator is provided with a plurality of convection channels spaced at intervals, and a low temperature difference is generated on the left side to accelerate the primary contaminants through the left side. The convection channel cooling forms a local primary pollutant and a part of the primary pollutant. The partial primary pollutant has been continuously adsorbed by the filter medium after repeated circulation in a circulating circuit; the post-filter medium is the local primary pollutant after adsorption filtration and cooling A small amount of pollutants is discharged after the matter has reached the pollutant reduction effect.

Description

Decontamination circulation filter system

The invention relates to a decontamination circulation filter system, in particular to a decontamination circulation filter system in which once pollutants are repeatedly circulated in a circulation loop and have been continuously adsorbed by the filter medium.

The conventional integrated system and the method of generating power are such as the Taiwan Patent Announcement No. I593872. Its main constituent features are: the exhaust gas from low-emission gas turbines (which is discharged in a typical natural gas combined cycle (NGCC) plant) Cooled and recirculated to the gas turbine main compressor inlet. The use of recirculated exhaust gas without cooling the combustion products with excessively compressed fresh air to the material limit in the expander. Combustion can be stoichiometric or non-stoichiometric. In one or more specific examples, the combination of stoichiometric combustion and exhaust gas recirculation increases the CO ² concentration in the recirculated gas and minimizes the presence of excess O ² , both of which make CO ² recovery more efficient Easy; and the main disadvantages of its composition are: increase the operational complexity and high cost of low-emission gas turbine operation.

The conventional air purification method is such as the Taiwan Patent Announcement No. I480089, whose main constituent features are: a method for reducing the amount of water, CO ² and N ₂ O in the air flow, which includes: making the air flow into the inlet At the feed temperature, through the first adsorbent, its CO ² /N ₂ O Henry's Law selectivity is at least 12.5, and the second adsorbent, its CO ² Henry's Law constant is less than 1020 mmol/g/atom and its CO ² / N ₂ O's Henry's Law selectivity is at most 5; and the hot regeneration gas is advanced to at least the second adsorbent at a temperature between 20°C and 80°C, and the second regeneration gas is in accordance with the feed The opposite direction proceeds to the first and second adsorbents at a temperature lower than the temperature of the hot regeneration gas; the second adsorbent accounts for 25% to 40% of the total volume of the adsorbents, and the thermal regeneration The temperature of the gas is 10°C to 60°C higher than the feed temperature; the main disadvantage of its composition is: the process is complicated.

For the prior art of the method of contacting catalyst particles with gas and liquid, please also refer to Taiwan Patent No. 265274. Its main structural features are: a method for contacting catalyst particles with gas and liquid with a specific gravity smaller than the catalyst particles The method includes the steps of: (a) placing the catalyst particles in a vertically long cylindrical container having a top and a bottom; (b) continuously feeding the liquid from the bottom of the container to fill the container; (c) at the The gas is continuously fed into the bottom of the container, and gas bubbles pass through the liquid to form an upward flowing mixture containing the particles, the liquid and the gas; (d) the gas is continuously introduced into the gas separation zone adjacent to the top of the container Upstream mixture, the mixture is separated into a gas phase by gravity, a supernatant liquid phase and a phase rich in the catalyst particles; (e) the gas phase is continuously withdrawn from the separation zone; (f) is continuously discharged from the separation zone The supernatant liquid phase; (g) the catalyst particle-rich phase is continuously discharged from the separation zone; and (h) the discharged catalyst particle-rich phase is continuously circulated back to the bottom of the container by gravity; The main disadvantages of the composition are: Old complex.

For the prior art of gas wet purification methods and devices, please also refer to Taiwan Proclamation No. 238255. Its main structural features are: for wet gas purification, the gas flowing in the pipeline is sprayed together with the washing liquid, The resulting mixture of gas and liquid is passed through a cyclone. The gas is first sprayed into the pre-wash tube, and the gas containing the washing liquid is then passed through a substantially horizontal acceleration tube with a cross section at the entrance of the tube that is 1.5 to 5 times larger than the cross section at the exit. The outlet of the acceleration tube is connected to the cyclone separator. The cyclone separator extracts the purified gas; the main disadvantage of its composition is that the cost of eliminating the dirt in the purification device is too high.

It can be seen that there are still many defects in the above-mentioned custom items, which is not a good designer and needs to be improved urgently.

Regarding the prior technology of the decontamination circulation filtration system, please also refer to Taiwan Announcement No. 481674, I267495, I298711, I422662, I449729, I519457, I592618, 200416201, 201111549, 201126056 mentioned above, the problem of the reduction of pollutants mentioned in this document In the invention, a dual-fluid circulator can solve these problems together, which is quite practical.

The purpose of the present invention is to provide a decontamination circulation filtration system that can relatively reduce primary pollutants.

The next object of the present invention is to provide a decontamination cycle filtration system that continuously recirculates and continuously adsorbs and filters the primary pollutant.

The decontamination circulating filtration system that can achieve the above-mentioned invention includes: a filtration pipe providing a heat flow containing pollutants; a filtration medium provided in the filtration Upstream location of the pipeline, the heat flow containing the contaminants is pressurized due to heat transfer into a bottom surface to pressure filter the contaminants, while A top surface discharges a primary pollutant; a dual-fluid circulator is set at the center section location of the filter pipe, and its interior is set at intervals A plurality of guide vanes, and a plurality of convection passes that are not connected are formed through the guide vanes, and the low temperature difference generated by contact with a cryogenic material on the left side is Accelerate the cooling of the primary pollutant from bottom to top via the convection channel on the left to form a local primary pollutant and a portion of the primary pollutant. The primary pollutant is in a circulating flow path ( cyclic flow path) to the convection channel on the right, this part of the primary pollutants and transfer recirculation from top to bottom (accelerate) to the right below the convection channel, the accelerated part of the pollution The confluence of the contaminants then converges to a compound cycle A composite cycle path and flow into the convection channel on the left again to form a circulation loop to enhance hot to cold air recirculation of the primary pollutant and the part of the primary pollutant ) And a continuous repeat-cycle (steady-state cycle), so that the top surface of the filter medium is continuously adsorbed and filtered (continuous adsorption filtration) of this part of the first pollutant; after a filter medium (after -filtration medium), which is set at the downstream location of the filtration pipeline, and discharges a trace amount of pollutants (micropollutant) after the local primary pollutants after cooling by adsorption filtration, has reached the pollutant reduction ( pollutant reduction) effect.

1‧‧‧Filter pipeline

11‧‧‧Heat flow

12‧‧‧Combustion device

2‧‧‧Filter media

21‧‧‧Bottom

22‧‧‧Top

23‧‧‧One pollutant

3‧‧‧Dual fluid circulator

31‧‧‧Guide

32‧‧‧Convection channel

33‧‧‧ Low temperature substance

34‧‧‧ local pollutants

35‧‧‧Some primary pollutants

41‧‧‧Circulation flow path

42‧‧‧Compound circulation path

5‧‧‧Post filter media

51‧‧‧ Trace contaminants

1 is a schematic diagram of the decontamination circulation filtration system of the present invention; FIG. 2 is a schematic diagram of the dual fluid circulator of the decontamination circulation filtration system using a variable inclination structure to adjust the circulation loop; FIG. 3 is a diagram of the decontamination circulation filtration system An enlarged schematic view of the part of the primary pollutant and the circulation flow path; and FIG. 4 is an enlarged schematic view of the primary pollutant and the composite circulation path of the decontamination circulation filtration system.

Please refer to FIG. 1, the decontamination circulation filtering system provided by the present invention, It mainly includes: a filter pipe 1, a filter medium 2, a double fluid circulator 3 and a rear filter medium 5; the filter pipe 1 (filter pipe) provides a heat flux 11 containing pollutants (pollutant) (heat flow) enter. Allowed from a combustion apparatus 12 (combustion apparatus), a combustion chamber (combustor), a combustion chamber (combustion chamber), a combustion space (combustion space), a combustion furnace (combustion furnace), an internal combustion technology (Internal combustion technology ), an oxygen-enhanced combustion technology (oxygen-enhanced combustion technology), a low oxygen combustion technology (low oxygen combustion technology), a premixed combustion technology (premixed combustion technology) leaving the heat flow 11 ascending motion (ascending motion) Enter the filter pipe 1 and go to the user of the rear filter medium 5. Among them, the pollutants include particulate pollutants, gaseous pollutants, air pollutants, particulate pollutants, filterable particulate matter (FPM), Condensable particulate matter (CPM), emission pollutants, removable contaminants, retained pollutants, and combinations thereof.

The filtration medium 2 is arranged at an upstream location of the filtration pipe 1, and the heat flow 11 containing contaminants is pressurized into a bottom due to heat transfer The bottom surface 21 is used for pressure filtration of the pollutant, and a primary pollutant 23 is discharged on a top surface 22 at the same time. The filter medium 2 is used to appropriately select the filtration area of the bottom surface 21 to perform a continuous filtration of the contaminants, or a ultrafiltration (hyperfiltration), or a filtration rate (filtration rate) Filtering adjustment. Using the filtration medium 2 to appropriately select the filtration area of the top surface 22 to perform a contact filtration, a settling filtration, or an adsorption filtration of the part of the primary pollutants 35 (adsorption filtration).

The dual-fluid circulator 3 is arranged at the center section location of the filter pipe 1 or at the middle section of a space formed by the filter medium 2 and the rear filter medium 5, and its interior A plurality of guide vanes 31 (guide vanes) arranged at intervals are arranged inside the dual-fluid circulator 3 by an angle of inclination or a variable incidence. The variable inclination angle is used by a variable lift device to change the inclination angle; and a plurality of unconnected complex convection channels 32 (convection pass) are formed through the deflector 31, and The low temperature difference caused by the contact of cryogenic materials 33 accelerates the cooling of the primary pollutant 23 from bottom to top via the convection channel 32 on the left to form a local primary pollutant 34 and a part of the primary pollutant 35 (portion primary pollutant), this part of the primary pollutant 35 in a circular flow path 41 (cyclic flow path) to the convection channel 32 on the right (as shown in FIG. 3), this part of the primary pollutant 35 and transfer recirculation from top to bottom (accelerate) to the right of the pair Below the flow channel 32, the accelerated primary pollutants 35 confluence at the primary pollutants 23 and then merge to a composite cycle path 42 (composite cycle path) and flow into the convection channel 32 on the left again to form a A circulation loop (the circulation flow path 41 and the composite circulation path 42 together form the circulation loop) (as shown in FIG. 4) to raise the hot and cold air of the primary pollutant 23 and the portion of the primary pollutant 35 The steady-state cycle of hot to cold air recirculation and continuous repeat-cycle makes the top surface 22 of the filter medium 2 continuous adsorption filtration (continuous adsorption filtration) of this part Primary pollutant 35; the after-filtration medium 5 is set at the downstream location of the filter pipe 1 to discharge the local primary pollutant 34 after cooling by adsorption filtration Trace pollutant 51 (micropollutant) or cryo-cooling the local primary pollutant 34 and then discharging the trace pollutant 51 has achieved pollutant reduction effect.

In the decontamination circulation filtration system of the present invention, the circulation flow path 41 is formed above the two-fluid circulator 3, and the composite circulation path 42 is formed below the two-fluid circulator 3, the circulation flow path 41 and the composite The circulation path 42 together forms the circulation loop, connecting the circulation loop to the space containing the filter medium 2 and the rear filter medium 5 containing the primary pollutant 23, therefore, the primary pollutant 23 can be continuously in a short time It has been accepted that in the two-fluid circulator 3, the forced circulation effect generated by the convective motion generated by the high-speed jet from the convection channel 32 is received. That is, for the body of the primary pollutant 23, a concentration constant for the primary pollutant 23 is maintained on the body of the primary pollutant 23 under a fixed method condition, which is equivalent to substantially receiving " The effect of continuously reducing the concentration ratio is that the primary pollutant 23 and the portion of the primary pollutant 35 circulate in the circulation loop, and the portion of the primary pollutant 35 is repeatedly on the filter medium 2 The top surface 22 is subjected to a composite filtration treatment such as contact filtration, sedimentation filtration, or adsorption filtration to obtain more excellent filtration treatment performance by the repeated treatment performed by the two-fluid circulator 3.

In addition, by the effect of the two-fluid circulator 3 on the concentration constant of the primary pollutant 23 kept under a fixed method and continuously reducing the concentration ratio, a cooling mechanism required by the two-fluid circulator 3 can be provided To make it simple, the cooling mechanism can be used to produce the low-temperature substance 33 to save the complexity of the mechanism. Moreover, in the present invention, the existing two-fluid circulator 3 and the low-temperature substance 33 are not simply connected together, but the system itself will actively use a pressure sensor to raise the two-fluid circulator 3 and the low temperature The filtration performance of substance 33, on the one hand, pollutes this part 35 is controlled to optimize the recirculation of hot and cold air, and on the other hand to control this part of the primary pollutants 35 to be optimized in continuous repeated cycles, both of which are hot air recirculation or heat transfer The principle of heat transfer recirculation is applied in order to further improve the steady-state circulation performance.

Of course, the circulation flow path 41 of the part of the primary pollutant 35 and the composite circulation path 42 of the part of the primary pollutant 35 confluent in the primary pollutant 23 for a short time may be the same circuit. In this case, the part of the primary pollutant 35 and the part of the primary pollutant 23 are connected on a circulating circuit, which can form a relatively simple circuit, and can pollute the part of the primary pollutant on a continuous repeated cycle path When the substance 35 merges with the primary pollutant 23 for a short time, the processing of both the circulation flow path 41 and the composite circulation path 42 can be continuously performed.

In addition, the circulation flow path 41 of the part of the primary pollutant 35 and the composite circulation path 42 of the part of the primary pollutant 35 merge with the primary pollutant 23, although they are connected by the circulation loop, but if It is adopted: the left (or right) uses the inclination angle (as shown in Figure 1) to adjust the loop circuit, and the right (or left) is a structure that uses variable inclination (as shown in Figure 2) By adjusting the circulation loop, the circulation loop formed by the circulation flow path 41 and the composite circulation path 42 can be easily used to set the treatment flow rate of the part of the primary pollutants 35.

The primary pollutant 23 is in this connection to the cycle Circulate in the circuit, by which it can be continuously executed in a short time: the continuous adsorption filtration process of the part of the primary pollutants 35 on the top surface 22 of the filter medium 2 can make the local part at almost the same time The primary pollutant 34 is subjected to the combined treatment of adsorption and filtration in the post-filter medium 5 and has achieved the pollutant reduction effect. Therefore, one cycle of the composite circulation path 42 is equal to one part (the first treatment) of the part of the primary pollutant 35, and the filtration process is sent back to the part of the primary pollution after the circulation flow path 41. The next cycle of the substance 35 is equal to the second (second processing) adsorption filtration process. By repeating this cycle, the top surface 22 of the filter medium 2 can be repeatedly received by the adsorption filtration Treatment effect.

In summary, this case is not only innovative in terms of space type, but also can improve the above-mentioned multiple functions compared with conventional items. It should have fully met the requirements of novelty and progressive legal invention patents. This invention patent application is to inspire the invention and feel virtuous.

1‧‧‧Filter pipeline

11‧‧‧Heat flow

12‧‧‧Combustion device

2‧‧‧Filter media

21‧‧‧Bottom

22‧‧‧Top

23‧‧‧One pollutant

3‧‧‧Dual fluid circulator

31‧‧‧Guide

32‧‧‧Convection channel

33‧‧‧ Low temperature substance

34‧‧‧ local pollutants

35‧‧‧Some primary pollutants

41‧‧‧Circulation flow path

42‧‧‧Compound circulation path

5‧‧‧Post filter media

51‧‧‧ Trace contaminants

Claims (1)

A decontamination circulation filter system includes: a filter pipe providing a heat flow containing pollutants; a filter medium arranged at an upstream position of the filter pipe, the heat flow containing pollutants is added due to heat transfer Press into a bottom surface to filter the contaminants under pressure, and discharge one time of contaminants on a top surface; a pair of fluid circulators are provided in the middle of the filter pipe, and a plurality of deflectors are spaced inside , And a plurality of unconnected plural convection channels are formed through the deflector, the low temperature difference generated by contact with a low temperature substance on the left side accelerates the cooling of the primary pollutant from the bottom through the convection channel on the left side A partial primary pollutant and a part of primary pollutant are formed, and the partial primary pollutant passes through a circulation flow path to the convection channel on the right side, and the partial primary pollutant is transmitted and recycled from top to bottom while accelerating to the pair on the right side Below the flow channel, the accelerated part of the primary pollutant merges with the primary pollutant and then converges to a composite circulation path and flows into the convection channel on the left again to form a circulation loop to enhance the primary pollutant and the part once The hot and cold air recirculation of pollutants and the steady-state circulation of continuous repeated cycles make the top surface of the filter media continuously adsorb and filter the part of the pollutants; the post-filter media is located downstream of the filter pipe, After adsorbing, filtering, and cooling the local primary pollutant, a trace amount of pollutant is discharged, and the pollutant reduction effect has been achieved.

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