CN103900842A - Self-suction-type Venturi water scrubber performance testing system - Google Patents
Self-suction-type Venturi water scrubber performance testing system Download PDFInfo
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Abstract
The invention relates to a self-suction-type Venturi water scrubber performance testing system. The self-suction-type Venturi water scrubber performance testing system comprises a self-suction-type Venturi water scrubber and a data collecting system, and is characterized in that the self-suction-type Venturi water scrubber performance testing system further comprises an air supply loop, a steam supply loop, a gas mixed distribution loop, an inlet sampling section, a self-suction-type Venturi water scrubber injection property measuring loop and an outlet sampling section; after being joined, an outlet of the air supply loop and an outlet of the steam supply loop are connected with an inlet of the gas mixed distribution loop, an outlet of the gas mixed distribution loop is connected with the inlet sampling section, an outlet of the inlet sampling section is connected with the self-suction-type Venturi water scrubber, and the self-suction-type Venturi water scrubber is externally connected with the injection property measuring loop.
Description
Technical field
The present invention relates to a kind of self-priming venturi water scrubber performance test system.
Background technology
When the major accident of reactor generation reactor core melting, a large amount of radiomaterials can be discharged in containment, cause containment internal pressure to raise, in the time that its internal pressure exceedes safety limit, containment filtration exhaust system is discharged in environment after the mode by active release is washed the gas in containment and filtered, reach and prevent containment superpressure, reduce as much as possible the object that is discharged into radiomaterial in environment, therefore the quality of containment filtration exhaust system performance is vital for the security of nuclear power station under major accident.
Due to venturi water scrubber have advantages of simple in structure, filtration efficiency is high, in the design of npp safety shell filtering emission system, has caused gradually people's concern in recent years, and has obtained certain application.But by the demand of nuclear power non-passive safety, in containment filtration exhaust system, cannot adopt at present at the more ripe venturi water scrubber of general industry field application, and need to there is the self-priming venturi water scrubber of particular design.This self-priming venturi water scrubber is wanted can be in the effective filtration that does not need to realize under powered attendant-controlled wheelchairs condition radioaerosol, iodine and methyl iodide in containment exhaust.Due to the singularity of nuclear power, in the time of nuclear power station generation major accident, the living environment that the release of a large amount of radiomaterials will threaten the mankind, therefore, in the time there is major accident, exhaust system becomes the major criterion of verification system reliability and security to the filtration efficiency of radiomaterial, so that all must be through strict test at any a set of venturi water scrubber or other filtration unit that are applied in containment filtration exhaust system, but can not in actual major accident, carry out the reliability of inspection machine, just need a set of system that can simulate the interior High Temperature High Pressure high humidity atmospheric environment of containment under various emergency conditions for this reason, adopt this system to test the performance of self-priming venturi water scrubber, at present, both at home and abroad also there is not the document of publishing to mention to be used for testing the experimental system of self-priming venturi water scrubber performance.
Summary of the invention
The object of the invention is to provide a kind of self-priming venturi water scrubber performance test system, can simulate the interior atmospheric environment of containment under various emergency conditions, effectively checks the performance of self-priming venturi water scrubber.
Realize the technical scheme of the object of the invention:
A kind of self-priming venturi water scrubber performance test system, comprise self-priming venturi water scrubber, data acquisition system (DAS), it is characterized in that: also comprise air supply loop, steam supply loop, gas mixes dispensing loop, import sampling section, self-priming venturi water scrubber injection feature measurement loop, outlet sampling section, after converging, the outlet of the outlet of air supply loop and steam supply loop connects the import that gas mixes dispensing loop, the outlet that gas mixes dispensing loop taps into a mouthful sampling section, the outlet of import sampling section connects self-priming venturi water scrubber, the external injection feature measurement of self-priming venturi water scrubber loop.
Gas mixes dispensing loop and comprises that gas mixes dispensing pipeline (65), mixing tank (32), gas mixing dispensing pipeline (65) connects the import of mixing tank (32), be provided with 3 dispensing mouth pieces (31), 3 dispensing mouth pieces (31) be respectively used to provide and deliver iodine, organic iodine, gasoloid, the end of dispensing mouth piece (31) is positioned at gas and mixes dispensing pipeline (65).
Self-priming venturi water scrubber injection feature measurement loop comprises water pump (51), balanced reservoir (54), the import of water pump (51) connects self-priming venturi water scrubber (37), the outlet of water pump (51) connects balanced reservoir (54) by pipeline (64), pipeline (64) is provided with variable valve (52), turbo flow meter (53), balanced reservoir (54) connects the feed trough (40) of self-priming Venturi tube (38) throat by supply line (56), the top of balanced reservoir is communicated with the top of self-priming venturi water scrubber (37) by bridge tube (55); Balanced reservoir is provided with liquid level gauge (58), and venturi water scrubber is provided with liquid level gauge (57).
Also be provided with metal fiber filter (43), the outlet at self-priming venturi water scrubber (37) top connects the import of metal fiber filter (43) by T-valve (41), another interface of T-valve (41) is connected with outlet header (66), and the outlet of metal fiber filter (43) is connected with outlet header (66) through stop valve (44); Outlet sampling section comprises 3 outlet sample connection pipes (46), and 3 outlet sample connection pipes (46) are respectively used to sample iodine, organic iodine, gasoloid, and the end of outlet sample connection pipe (46) is positioned at the outer end of outlet header (66).
The outlet of mixing tank (32) connects the import of self-priming venturi water scrubber (37) through inverted U-shaped pipeline (47); Import sampling section comprises 3 import sample connection pipes (33), and 3 import sample connection pipes (33) are respectively used to sample iodine, organic iodine, gasoloid, and the end of import sample connection pipe (33) is positioned at the inlet end of inverted U-shaped pipeline (47).
Air supply loop structure is, air compressor machine (1), gas-holder (4), filtrator (7), air preheater (18) connect successively, and the outlet of air preheater (18) mixes dispensing pipeline (65) with gas and is connected; Filtrator (7) is provided with 3 grades of filter elements, and the connecting line between filtrator (7) and air preheater (18) is 3 supply air lines in parallel, and 3 supply air line calibers are different.
Steam supply loop structure is, boiler (19) connects steam superheater (29), and the outlet of steam superheater (29) mixes dispensing pipeline (65) with gas and is connected; Connecting line between boiler (19) and steam superheater (29) is 2 supply air lines in parallel, and 2 supply air line calibers are not identical.
Dispensing mouth piece (31) end is bend pipe, and bending direction is identical with gas flow direction; The end of import sample connection pipe (33) is bend pipe, and bending direction is contrary with gas flow direction.
In mixing tank (32), be provided with 2 dividing plates (62) and 1 orifice plate (63), 2 dividing plates (62) are crisscross arranged up and down, and 2 dividing plates (62) are positioned at the below of orifice plate (63).
The refluxing opening of metal fiber filter (43) bottom connects self-priming venturi water scrubber (37) through reverse flow valve (45); Self-priming venturi water scrubber (37) adopts flange mode to be connected with external pipeline with metal fiber filter (43).
The beneficial effect that the present invention has:
The present invention includes air supply loop, steam supply loop, gas mixing dispensing loop, import sampling section, self-priming venturi water scrubber injection feature measurement loop, outlet sampling section, after converging, the outlet of the outlet of air supply loop and steam supply loop connects the import that gas mixes dispensing loop, the outlet that gas mixes dispensing loop taps into a mouthful sampling section, the outlet of import sampling section connects self-priming venturi water scrubber, the external injection feature measurement of self-priming venturi water scrubber loop.The present invention can simulate the interior atmospheric environment of containment under various emergency conditions, effectively checks strainability and the injection characteristic of self-priming venturi water scrubber.
Gas of the present invention mixes dispensing loop and is provided with 3 dispensing mouth pieces (31), 3 dispensing mouth pieces (31) be respectively used to provide and deliver iodine, organic iodine, gasoloid, iodine, organic iodine, gasoloid environment under can simulated accident condition in containment, the mixing tank in gas mixing dispensing loop can guarantee the abundant mixing of dispensed substance, change dispensed substance, other atmospheric environment under all right simulated accident condition in containment.
Injection volume is the important parameter of weighing self-priming venturi water scrubber injection performance, is also the important parameter of weighing water scrubber strainability quality.By self-priming venturi water scrubber injection feature measurement of the present invention loop, can realize liquid absorption (injection volume) measures indirectly, the supply line (56) of self-priming venturi water scrubber is upper without the resistance parts such as flowmeter are installed, obtain imbibition value by the balance of liquid absorption and pump discharge, record liquid absorption by the turbo flow meter (53) on the export pipeline (64) of water pump (51), effectively guarantee the authenticity that liquid absorption is measured.By self-priming venturi water scrubber injection feature measurement of the present invention loop, can complete the Measurement accuracy of self-priming venturi water scrubber injection volume, comprise that the injection volume under the different depth of immersions of throat and throat's different in flow rate measures, also can carry out the injection characteristic of venturi water scrubber of different structure and the experimental study of drag characteristic.
Metal fiber filter of the present invention (43) is connected by T-valve (41) with self-priming venturi water scrubber (37), the valve position that changes T-valve (41) changes gas trend, thereby can complete the performance test in the independent strainability test of self-priming venturi water scrubber or venturi water scrubber and the two series connection situation of metal fiber filter.
The present invention can meet the combination gas supply requirement under air and steam different conditions of mixture ratios, and can change mixture temperature by the heating power of steam regulation superheater (29) and air preheater (18), the atmospheric environment in containment under simulation emergency conditions in a big way.Air supply loop of the present invention and steam supply loop have respectively the supply line of many different tube diameters, can guarantee the Measurement accuracy of steam flow and air mass flow, meet the proportioning demand of air and steam different flow simultaneously, and measuring accuracy can reach 0.5 grade.
The outlet of mixing tank of the present invention (32) connects the import of self-priming venturi water scrubber (37) through inverted U-shaped pipeline (47), can effectively prevent that the chemical solution in self-priming venturi water scrubber from flowing backward to air and steam supply loop; In mixing tank (32), be provided with 2 dividing plates (62) and 1 orifice plate (63), can guarantee fully mixing of dispensed substance and gas.The present invention mouth piece (31) end of providing and delivering is bend pipe, and bending direction is identical with gas flow direction; The end of import sample connection pipe (33) is bend pipe, and bending direction is contrary with gas flow direction, more contributes to dispensed substance, sampling.Reverse flow valve (45) is equipped with in metal fiber filter (43) bottom, and the moisture that reverse flow valve (45) can guarantee to be trapped in metal fiber filter is back in water scrubber smoothly.The self-priming venturi water scrubber of the present invention (37) adopts flange mode to be connected with external pipeline with metal fiber filter (43), is convenient for changing filter plant.
Accompanying drawing explanation
Fig. 1 is one-piece construction schematic diagram of the present invention;
Fig. 2 is the partial enlarged drawing of dispensing interface area;
Fig. 3 is the partial enlarged drawing in mixing tank region;
Fig. 4 is the partial enlarged drawing in import sampling section region;
Fig. 5 is the partial enlarged drawing of self-priming venturi water scrubber injection feature measurement loop feature.
Embodiment
As shown in Figure 1, experimental system is by self-priming venturi water scrubber, air supply loop, steam supply loop, gas mixes dispensing loop, import sampling section, self-priming venturi water scrubber injection feature measurement loop, outlet sampling section and corresponding data acquisition system (DAS) form, after converging, the outlet of the outlet of air supply loop and steam supply loop connects the import that gas mixes dispensing loop, the outlet that gas mixes dispensing loop taps into a mouthful sampling section, the outlet of import sampling section connects self-priming venturi water scrubber, the external injection feature measurement of self-priming venturi water scrubber loop.
As shown in Figure 1, air supply loop is connected and composed successively by air compressor machine 1, gas-holder 4, filtrator 7, air preheater 18, air compressor machine 1 is connected with non-return valve 3 by expansion joint 2, the entrance of another termination gas-holder 4 of non-return valve 3, safety valve 6 is arranged at gas-holder 4 tops, drain valve 5 is equipped with in bottom, and filter 7 is taken in the outlet of gas-holder 4, and the outlet of filtrator 7 connects reduction valve 8.After reduction valve, be connected to the supply air line of DN25, DN50, tri-different tube diameters in parallel of DN80, corresponding stop valve 9,12,15, mass flowmeter 10,13,16 on every supply air line, be all equipped with and 11,14,17, three supply air lines of variable valve are final converges and become a pipeline to be connected with air preheater 18.The outlet of air preheater 18 and gas mix dispensing pipeline 65 be connected (outlet that is air supply loop connects the import that gas mixes dispensing loop).Wherein acting as of expansion joint 2 reduces vibration, and non-return valve 3 can prevent that air from flowing backward to air compressor machine 1.Filtrator 7 is provided with three-stage filtration unit, its filtering accuracy is respectively 3 μ m, 1 μ m and 0.01 μ m, adopt the filtrator of three different accuracies can go out the solid particle and the fine oil droplet that carry in gas, guarantee the degree of purity of air, avoid affecting because of solid particle entrained in gas in gasoloid process the accuracy of gasoloid filtration efficiency.Reduction valve 8 can regulate air pressure, to meet the demand of air under different pressures condition.The supply air line of described three different tube diameters can work independently as required, to regulate air mass flow in a big way.Air preheater 18 can add hot-air, and to meet the demand to air under condition of different temperatures, the pipeline after air preheater adopts insulation material parcel simultaneously, prevents heat loss.Air supply loop provides the air of various pressure, temperature, flow, for simulating the air ambient in containment under various conditions.
As shown in Figure 1, steam supply loop comprises boiler 19, steam superheater 29, boiler 19 is connected with variable valve 21 by stop valve 20, variable valve 21 other ends are connected with reduction valve 22, reduction valve 22 other ends are connected to the steam supply pipe road of DN50 and two different tube diameters in parallel of DN80, corresponding stop valve 23 on steam supply pipe road, is all equipped with, 26, mass flowmeter 24, 27, variable valve 25, 28, article two, the outlet on steam supply pipe road converges with steam superheater 29 entrances and is connected, the outlet of the outlet of steam superheater 29 and air preheater 18 merges into a pipeline (being that the outlet of air supply loop and the outlet of steam supply loop converge).The outlet of steam superheater 29 and gas mix dispensing pipeline 65 be connected (outlet that is steam supply loop connects the import that gas mixes dispensing loop).Steam superheater 29 is produced to remove boiler the drop of carrying secretly in saturated vapour for generation of micro-superheated vapor, guarantees, after steam mixes with air, condensation does not occur, with the impact of avoiding lime set to cause gasoloid, iodine and methyl iodide sampling process simultaneously.Described reduction valve 22 is for steam regulation pressure, the steam supply pipe road of above-mentioned two different tube diameters can isolated operation, to meet the demand to different steam flows, steam superheater 29 is in order to further heating steam, the steam micro-overheating that boiler is produced, guarantees, after steam mixes with air, condensation does not occur.Described loop also has drain valve 48,49, during for preheating pipe, discharges the condensate water producing because of steam-condensation, and whole system prevents heat loss with insulation material parcel simultaneously.Steam supply loop provides the steam of various pressure, temperature, flow, for simulating the steam ambient in containment under various conditions.
As shown in Figure 1, gas mixes dispensing loop and comprises that gas mixes dispensing pipeline 65, mixing tank 32, gas mixing dispensing pipeline 65 connects the import of mixing tank 32, Fig. 2 is the partial enlarged drawing of dispensing interface area 59, as shown in Figure 2, is provided with 3 dispensing mouth pieces 31,3 dispensing mouth pieces 31 be respectively used to provide and deliver iodine, organic iodine, gasoloids, the end of dispensing mouth piece 31 is positioned at gas and mixes dispensing pipeline 65, and dispensing mouth piece 31 ends are bend pipe, and bending direction is identical with gas flow direction.Gas mixes dispensing pipeline 65 and is provided with non-return valve 30, in order to prevent that dispensed substance from flowing to steam and air supply loop, prevents the damage of dispensed substance to instrument on two supply loops.Fig. 3 is the partial enlarged drawing in mixing tank region 61, as shown in Figure 3, in mixing tank 32, be provided with 62 and 1 orifice plate 63 of 2 dividing plates, 2 dividing plates 62 are crisscross arranged up and down, 2 dividing plates 62 are positioned at the below of orifice plate 63, and its median septum 62 enters the flow direction after mixing tank in order to change air-flow, make dispensed substance and gas occur fully to mix, guarantee that gas mixes with the even of dispensed substance, leave mixing tank 32 finally by the current balance function of orifice plate 63.Gas mix dispensing loop can simulated accident condition under iodine, methyl iodide, gasoloid environment in containment, for the test of self-priming venturi water scrubber and metal fiber filter strainability.
As shown in Figure 1, the outlet of mixing tank 32 connects the import of self-priming venturi water scrubber 37 through inverted U-shaped pipeline 47; Fig. 4 is the partial enlarged drawing in import sampling section region 60, as shown in Figure 4, import sampling section comprises 3 import sample connection pipes 33,3 import sample connection pipes 33 are respectively used to sample iodine, organic iodine, gasoloid, the end of import sample connection pipe 33 is positioned at the inlet end of inverted U-shaped pipeline, the end of import sample connection pipe 33 is bend pipe, and bending direction is contrary with gas flow direction.As shown in Figure 1, on inverted U-shaped pipeline 47, be also provided with non-return valve 34, expansion joint 35 and stop valve 36.Inverted U dip pipe 47 can play buffer action, the top of inverted U will be higher than the interior liquid level of self-priming venturi water scrubber 37 of 2 times, prevent that the chemical solution refluence in self-priming venturi water scrubber 37 from entering mixing tank 32 and steam and air supply loop, in order to avoid corrosion and the damage of chemical solution to surveying instrument.
As shown in Figure 1, also be provided with metal fiber filter 43, the outlet at self-priming venturi water scrubber 37 tops connects the import of metal fiber filter 43 by T-valve 41, another interface of T-valve 41 is connected with outlet header 66, and the outlet of metal fiber filter 43 is connected with outlet header 66 through stop valve 44; The refluxing opening of metal fiber filter 43 bottoms connects self-priming venturi water scrubber 37 through reverse flow valve 45.Outlet sampling section comprises that 46,3 outlet sample connection pipes 46 of 3 outlet sample connection pipes are respectively used to sample iodine, organic iodine, gasoloid, and the end of outlet sample connection pipe 46 is positioned at outlet header 66 outer end.Metal fiber filter 43 is external stop valve 42,44 also.T-valve 41 has two effects, first effect is in the time of the independent removal ability of the self-priming venturi water scrubber of checking 37 self, to isolate metal fiber filter 43, second effect is in the time of Authentication devices overall performance, guarantees the series operation of self-priming venturi water scrubber 37 and metal fiber filter 43.Self-priming venturi water scrubber 37 and metal fiber filter 43 adopt flange mode and external pipeline, can be for convenience detach; If need the performance of other filter plant be tested, only need, by filter plant with flange connection insert experiment loop, adopt flange connection can be convenient for changing filter plant.
Fig. 5 is the partial enlarged drawing of self-priming venturi water scrubber injection feature measurement loop feature 39, as shown in Figure 5, self-priming venturi water scrubber injection feature measurement loop comprises water pump 51, balanced reservoir 54, the import of water pump 51 connects self-priming venturi water scrubber 37, the outlet of water pump 51 connects balanced reservoir 54 by pipeline 64, pipeline 64 is provided with variable valve 52, turbo flow meter 53, balanced reservoir 54 connects the feed trough 40 of self-priming Venturi tube 38 throats by supply line 56, wherein the effect of feed trough 40 is to guarantee that feedwater can be assigned to each aperture of throat uniformly, the top of balanced reservoir is communicated with the top of self-priming venturi water scrubber 37 by bridge tube 55, the two headroom pressure is equated, thereby guarantee that the inside and outside back pressure of venturi throat is identical, balanced reservoir is provided with liquid level gauge 58, and venturi water scrubber is provided with liquid level gauge 57, is respectively used to observe the liquid level of balanced reservoir and venturi water scrubber.The flow of supply line 56 is the injection volume of venturi, if but add valve or flowmeter on supply line 56, although can directly obtain injection volume, but can make the resistance to flow of supply line 56 increase, thereby affect the authenticity that injection volume is measured, therefore, do not establish any valve and flowmeter on supply line 56, the injection volume of venturi is measured by round-about way.In the time of normal experiment, keep the initial liquid level of self-priming venturi water scrubber 37 and balanced reservoir 54 identical, if variable valve 52 and water pump 51 are closed, the water in balanced reservoir 54 reduces gradually due to the ejector action of self-priming Venturi tube 38, the liquid level of balanced reservoir 54 reduces, in order to keep balanced reservoir 54 liquid levels constant, start pump 51, regulate by variable valve 52 discharge that enters balanced reservoir 54, in the time that balanced reservoir 54 liquid levels remain unchanged and are identical with the liquid level of self-priming venturi water scrubber 37, just represent by water pump 51 the water yield in the balanced reservoir that adds to 54 just identical with the discharge that enters self-priming Venturi tube 38 by supply line 56, that is to say, the reading of turbo flow meter 53 is the injection volume of self-priming Venturi tube 38, change the interior liquid level of self-priming venturi water scrubber 37 simultaneously and can measure throat's difference and flood the injection volume of venturi under condition.In order to reduce resistance to flow, pipeline adopts large diameter pipe, and pipe range is as far as possible short.
Data acquisition system (DAS) of the present invention comprises the measurement instrument of corresponding temperature, pressure and flow, data acquisition board, and computing machine and wire that measurement instrument is connected with data acquisition board etc., this is prior art.In experimentation, signals such as corresponding temperature, pressure and flows is converted into electric signal by each measurement instrument, be transferred to data acquisition board, data acquisition board receives and records corresponding signal, and the actual value that electric signal is converted into temperature, pressure and flow is shown on computer screen.
Claims (10)
1. a self-priming venturi water scrubber performance test system, comprise self-priming venturi water scrubber (37), data acquisition system (DAS), it is characterized in that: also comprise air supply loop, steam supply loop, gas mixes dispensing loop, import sampling section, self-priming venturi water scrubber injection feature measurement loop, outlet sampling section, after converging, the outlet of the outlet of air supply loop and steam supply loop connects the import that gas mixes dispensing loop, the outlet that gas mixes dispensing loop taps into a mouthful sampling section, the outlet of import sampling section connects self-priming venturi water scrubber, the external injection feature measurement of self-priming venturi water scrubber loop.
2. self-priming venturi water scrubber performance test system according to claim 1, it is characterized in that: gas mixes dispensing loop and comprises that gas mixes dispensing pipeline (65), mixing tank (32), gas mixing dispensing pipeline (65) connects the import of mixing tank (32), be provided with 3 dispensing mouth pieces (31), 3 dispensing mouth pieces (31) be respectively used to provide and deliver iodine, organic iodine, gasoloid, the end of dispensing mouth piece (31) is positioned at gas and mixes dispensing pipeline (65).
3. self-priming venturi water scrubber performance test system according to claim 2, it is characterized in that: self-priming venturi water scrubber injection feature measurement loop comprises water pump (51), balanced reservoir (54), the import of water pump (51) connects self-priming venturi water scrubber (37), the outlet of water pump (51) connects balanced reservoir (54) by pipeline (64), pipeline (64) is provided with variable valve (52), turbo flow meter (53), balanced reservoir (54) connects the feed trough (40) of self-priming Venturi tube (38) throat by supply line (56), the top of balanced reservoir is communicated with the top of self-priming venturi water scrubber (37) by bridge tube (55), balanced reservoir is provided with liquid level gauge (58), and venturi water scrubber is provided with liquid level gauge (57).
4. self-priming venturi water scrubber performance test system according to claim 3, it is characterized in that: be also provided with metal fiber filter (43), the outlet at self-priming venturi water scrubber (37) top connects the import of metal fiber filter (43) by T-valve (41), another interface of T-valve (41) is connected with outlet header (66), and the outlet of metal fiber filter (43) is connected with outlet header (66) through stop valve (44); Outlet sampling section comprises 3 outlet sample connection pipes (46), and 3 outlet sample connection pipes (46) are respectively used to sample iodine, organic iodine, gasoloid, and the end of outlet sample connection pipe (46) is positioned at the outer end of outlet header (66).
5. self-priming venturi water scrubber performance test system according to claim 4, is characterized in that: the outlet of mixing tank (32) connects the import of self-priming venturi water scrubber (37) through inverted U-shaped pipeline (47); Import sampling section comprises 3 import sample connection pipes (33), and 3 import sample connection pipes (33) are respectively used to sample iodine, organic iodine, gasoloid, and the end of import sample connection pipe (33) is positioned at the inlet end of inverted U-shaped pipeline (47).
6. self-priming venturi water scrubber performance test system according to claim 5, it is characterized in that: air supply loop structure is, air compressor machine (1), gas-holder (4), filtrator (7), air preheater (18) connect successively, and the outlet of air preheater (18) mixes dispensing pipeline (65) with gas and is connected; Filtrator (7) is provided with 3 grades of filter elements, and the connecting line between filtrator (7) and air preheater (18) is 3 supply air lines in parallel, and 3 supply air line calibers are different.
7. self-priming venturi water scrubber performance test system according to claim 6, it is characterized in that: steam supply loop structure is, boiler (19) connects steam superheater (29), and the outlet of steam superheater (29) mixes dispensing pipeline (65) with gas and is connected; Connecting line between boiler (19) and steam superheater (29) is 2 supply air lines in parallel, and 2 supply air line calibers are not identical.
8. self-priming venturi water scrubber performance test system according to claim 7, is characterized in that: dispensing mouth piece (31) end is bend pipe, and bending direction is identical with gas flow direction; The end of import sample connection pipe (33) is bend pipe, and bending direction is contrary with gas flow direction.
9. self-priming venturi water scrubber performance test system according to claim 8, it is characterized in that: in mixing tank (32), be provided with 2 dividing plates (62) and 1 orifice plate (63), 2 dividing plates (62) are crisscross arranged up and down, and 2 dividing plates (62) are positioned at the below of orifice plate (63).
10. self-priming venturi water scrubber performance test system according to claim 9, is characterized in that: the refluxing opening of metal fiber filter (43) bottom connects self-priming venturi water scrubber (37) through reverse flow valve (45); Self-priming venturi water scrubber (37) adopts flange mode to be connected with external pipeline with metal fiber filter (43).
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| CN107192736A (en) * | 2017-06-22 | 2017-09-22 | 爱文思控制系统工程(上海)有限公司 | A kind of pretreatment system for the low explosion limit analyzers of CIC |
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Effective date of registration: 20180614 Address after: No. 117, West Sanhuan North Road, Haidian District, Beijing Patentee after: China Nuclear Power Engineering Co., Ltd. Address before: 150001 Intellectual Property Office, Harbin Engineering University science and technology office, 145 Nantong Avenue, Nangang District, Harbin, Heilongjiang Patentee before: Harbin Engineering Univ. |