CN212142181U - Static mixer structure for preparing sodium hypochlorite sterilizing liquid by synthesis method - Google Patents
Static mixer structure for preparing sodium hypochlorite sterilizing liquid by synthesis method Download PDFInfo
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- CN212142181U CN212142181U CN202020113816.6U CN202020113816U CN212142181U CN 212142181 U CN212142181 U CN 212142181U CN 202020113816 U CN202020113816 U CN 202020113816U CN 212142181 U CN212142181 U CN 212142181U
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- sodium hypochlorite
- acid
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- 239000005708 Sodium hypochlorite Substances 0.000 title claims abstract description 70
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 title claims abstract description 70
- 230000001954 sterilising effect Effects 0.000 title claims abstract description 32
- 239000007788 liquid Substances 0.000 title claims abstract description 21
- 230000003068 static effect Effects 0.000 title claims abstract description 7
- 238000001308 synthesis method Methods 0.000 title description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 54
- QWPPOHNGKGFGJK-UHFFFAOYSA-N hypochlorous acid Chemical compound ClO QWPPOHNGKGFGJK-UHFFFAOYSA-N 0.000 claims abstract description 39
- 238000002156 mixing Methods 0.000 claims abstract description 21
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims abstract description 14
- 238000007865 diluting Methods 0.000 claims abstract description 4
- 239000011550 stock solution Substances 0.000 claims description 62
- 239000002253 acid Substances 0.000 claims description 58
- 239000000243 solution Substances 0.000 claims description 18
- 239000007921 spray Substances 0.000 claims description 17
- 239000003085 diluting agent Substances 0.000 claims description 14
- 238000003860 storage Methods 0.000 claims description 11
- 238000004659 sterilization and disinfection Methods 0.000 claims description 5
- BZSXEZOLBIJVQK-UHFFFAOYSA-N 2-methylsulfonylbenzoic acid Chemical compound CS(=O)(=O)C1=CC=CC=C1C(O)=O BZSXEZOLBIJVQK-UHFFFAOYSA-N 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 238000002360 preparation method Methods 0.000 abstract description 4
- 238000010189 synthetic method Methods 0.000 abstract 1
- 238000006243 chemical reaction Methods 0.000 description 16
- 238000006386 neutralization reaction Methods 0.000 description 8
- 239000007864 aqueous solution Substances 0.000 description 7
- WQYVRQLZKVEZGA-UHFFFAOYSA-N hypochlorite Chemical compound Cl[O-] WQYVRQLZKVEZGA-UHFFFAOYSA-N 0.000 description 7
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 6
- 239000000460 chlorine Substances 0.000 description 6
- 229910052801 chlorine Inorganic materials 0.000 description 6
- 230000000844 anti-bacterial effect Effects 0.000 description 5
- 238000005192 partition Methods 0.000 description 5
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000003786 synthesis reaction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 239000008399 tap water Substances 0.000 description 2
- 235000020679 tap water Nutrition 0.000 description 2
- KZBUYRJDOAKODT-UHFFFAOYSA-N Chlorine Chemical compound ClCl KZBUYRJDOAKODT-UHFFFAOYSA-N 0.000 description 1
- 230000002421 anti-septic effect Effects 0.000 description 1
- 239000011260 aqueous acid Substances 0.000 description 1
- 239000003899 bactericide agent Substances 0.000 description 1
- 239000011797 cavity material Substances 0.000 description 1
- 239000012295 chemical reaction liquid Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- -1 hypochlorite ions Chemical class 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000005180 public health Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
- 239000002349 well water Substances 0.000 description 1
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Abstract
The utility model provides a synthetic method preparation sodium hypochlorite sterilizing liquid static mixer structure, the mixer structure includes the cylinder shell, runs through first column plate, second column plate and the third column plate of shell to and by first cavity, second cavity and the third cavity that forms between column plate and the shell roof. The first cavity is used for diluting high-concentration hydrochloric acid and sodium hypochlorite solution simultaneously, the second cavity is used for mixing and generating hypochlorous acid sterilizing water, and the third cavity is used for balancing newly synthesized hypochlorous acid sterilizing water, so that the fluctuation of the final prepared hypochlorous acid concentration is small. The utility model provides a continuous hypochlorous acid sterilizing water generating device and a manufacturing method with high reliability, strong practicability, low price and simple structure.
Description
Technical Field
The utility model relates to a synthesis method preparation sodium hypochlorite sterilization liquid static mixer structure in the broad sense, in particular to in the raw water such as running water or deep-well water, directly add sodium hypochlorite aqueous solution and acid water solution, make it fully and the device of the sterilization liquid that the mixing comes continuous preparation specific pH value and/or hypochlorous acid concentration of mixing.
A particular, but not exclusive, application of the invention is to a mixed acid liquor and sodium hypochlorite solution for a continuous hypochlorous acid sterilizing water generating apparatus, to which reference will be made for descriptive purposes. It should be understood that the present invention may be used in other applications (e.g., public health, food processing).
Background
Hypochlorous acid as a powerful bactericide can exhibit good bactericidal activity even at concentrations below 0.1ppm, and the bactericidal activity of hypochlorous acid under the same conditions is tens or hundreds of times that of hypochlorite as reported by the research of the Environmental Protection Agency (EPA). In addition, the hypochlorous acid is sensitive to natural factors such as heat, light and the like, so that the problem of residue in the using process is not worried about. The research shows that when the pH value of the hypochlorite solution is controlled to be 5.0-6.5, more than 98% of the available chlorine is contributed by the hypochlorous acid. Excellent bactericidal effect can be obtained even in a low concentration range (about 10 ppm), and the corrosion of the bactericidal liquid to stainless steel is extremely low in this pH range. When the pH value of the hypochlorite solution is more than 9.0, the available chlorine mainly exists in the form of hypochlorite ions, and the hypochlorous acid content contributing to sterilization is very small. When the pH of the solution is below 4.5, the available chlorine in the form of hypochlorous acid is reduced to 80%, and is only 30% at a pH value of 1, and most of the available chlorine in the solution exists in the form of chlorine gas.
Conventionally, a manufacturing apparatus for manufacturing hypochlorous acid sterilizing water by mixing sodium hypochlorite and hydrochloric acid or an acid such as acetic acid into raw water such as tap water or underground water is provided with a mixer for mixing raw water, sodium hypochlorite and an acid solution, and sterilizing water is produced by adding a predetermined amount of sodium hypochlorite and a predetermined amount of acid to a predetermined amount of raw water introduced into the mixer to produce a mixed water of the two (for example, chinese patent 02160250.6; chinese patent 200410005509.1; chinese patent 200580046539. X). In the prior art, the adopted mixer has more baffles, a complex structure, more processing parts and high production cost, increases the pressure drop of the system and reduces the production capacity of the system. Still some adopt dynamic mixer to realize acid-base neutralization, produce the antiseptic water, adopt the motion piece can increase the production of equipment and running cost by a wide margin. On the other hand, in the neutralization reaction of sodium hypochlorite and acid liquor, the reasonable proportion of the sodium hypochlorite and the acid liquor directly influences the quality of the synthesized hypochlorous acid sterilizing liquid, if the sodium hypochlorite is excessive relative to the acid liquor, the mass concentration of the synthesized hypochlorous acid is low, otherwise, the acid liquor is excessive, and chlorine is generated in the synthesis process.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a develop in view of these problems among the prior art, the purpose is to develop one kind in succession, and pressure drop is little, and the misce bene does not produce the mixing arrangement of chlorine when sodium hypochlorite and acid mix in the water preparation process that disinfects. Thereby obtaining the continuous hypochlorous acid sterilizing water generating device with high reliability, strong practicability, low price and simple structure and the manufacturing method thereof. The structure of a hybrid reaction unit satisfying such design requirements is shown in FIG. 1.
The mixed reaction unit is a tower plate structure, the structure comprises 3 tower plates including a first tower plate, a second tower plate and a third tower plate, and the 3 tower plates divide the mixed reaction unit into 3 cavities including a first cavity, a second cavity and a third cavity. The raw water inside the first cavity enters the first cavity between the first tower plate and the second tower plate through the raw water inlet 1, and the L/D ratio of the distance between the first tower plate and the second tower plate in the first cavity to the inner diameter of the mixer is 0.1-0.5. Raw water is divided into two paths by the partition plates 2 and 3 after entering, the two paths of raw water are respectively diluted by the acid stock solution adding nozzle 4 and the sodium hypochlorite stock solution adding nozzle 5, the acid stock solution and the sodium hypochlorite stock solution are sprayed out, the acid diluent is uniformly mixed through the partition plates 6 and 7 and the second support rod 11, and the sodium hypochlorite diluent is uniformly mixed through the partition plates 8 and 9 and the first support rod 10. Two kinds of diluent respectively enter a second cavity between a second tower plate and a third tower plate through holes 13 and 14, and the L/D ratio of the distance between the second tower plate and the third tower plate in the second cavity to the inner diameter of the mixer is 1-2. In the second cavity, acid and sodium hypochlorite diluent are subjected to neutralization reaction and are fully mixed. And finally, the prepared sterilizing liquid enters a third cavity between a third tower plate and a mixed reaction outlet through holes 15 and 16, the third cavity has a certain buffer volume, and the L/D ratio of the distance between the third tower plate and the second top plate 52 to the inner diameter of the mixer is 2-3.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
according to an aspect of the utility model, the utility model provides a mixer structure, the mixer structure includes:
the cylinder shell comprises a first top plate, a second top plate and a side wall; the first top plate comprises an acid liquor adding spray head, a sodium hypochlorite adding spray head and a raw water inlet; the second top plate comprises a hypochlorous acid sterilization liquid outlet; a first tray, a second tray, and a third tray extending through the housing; wherein,
the middle part of the first tower plate is provided with one or more raw water inlets, the first side is provided with one or more acid stock solution ejection outlets, and the second side is provided with one or more sodium hypochlorite stock solution ejection outlets;
said second tray having one or more sodium chlorate diluent inlets on a first side and one or more acid diluent inlets on a second side;
the third tray has one or more hypochlorous acid sterilizing liquid flow outlets; and
a first cavity is formed among the first tower plate, the second tower plate and the side wall and is used for simultaneously diluting high-concentration hydrochloric acid and sodium hypochlorite solution;
a second cavity is formed among the second tower plate, the third tower plate and the side wall and used for mixing to generate hypochlorous acid sterilizing water;
and a third cavity is formed among the third tower plate, the second top plate and the side wall, and is used for balancing newly synthesized hypochlorous acid sterilizing water and ensuring that the finally prepared hypochlorous acid has small concentration fluctuation.
According to some embodiments of the present invention, the ratio L/D of the height between the first tray and the second tray to the inner diameter of the mixer is 1/5 to 1/2,
according to some embodiments of the present invention, the ratio L/D between the height between the second tray and the third tray and the inner diameter of the mixer is 1 to 2.
According to some embodiments of the present invention, the ratio L/D of the distance between the third tray and the second top plate to the inner diameter of the mixer is 2 to 3.
According to the utility model discloses a certain embodiments, two or more baffles have on the first column plate, the baffle is located the both sides of raw water entry, the first side that has one or more sour stoste spout has one or more baffles, the second side that has one or more sodium hypochlorite stoste spout has one or more baffles, after raw water gets into first column plate, by the baffle divide into two the tunnel, adds the shower nozzle to the acidizing fluid simultaneously and add certain measurement high concentration hydrochloric acid and sodium hypochlorite solution of shower nozzle spun and dilute to sodium hypochlorite.
According to some embodiments of the present invention, the first tray has a baffle on it, the baffle is outside the sodium hypochlorite stock solution ejection port and the acid stock solution ejection port, for further mixing the sodium hypochlorite stock solution and the acid stock solution.
According to some embodiments of the present invention, there is a support bar between the first and third trays, preferably one, two or more support bars.
According to certain embodiments of the present invention, the mixer is a static mixer.
According to some embodiments of the present invention, the mixer structure further comprises a sodium hypochlorite stock solution storage tank, an acid stock solution storage tank, a first electromagnetic metering pump and a second electromagnetic metering pump, wherein a first end of the first electromagnetic metering pump is connected to the sodium hypochlorite stock solution storage tank, and a second end thereof is connected to the sodium hypochlorite addition nozzle; and the first end of the second electromagnetic metering pump is connected with the acid stock solution storage tank, and the second end of the second electromagnetic metering pump is connected with the acid liquor adding spray head.
Brief description of the drawings
Various embodiments of the present invention will now be described with reference to the accompanying drawings, in which:
FIG. 1 is a longitudinal sectional view of a mixing reaction unit;
FIGS. 2-4 are transverse cross-sectional views of a mixing reaction unit; FIGS. 2, 3 and 4 are transverse cross-sectional views of the mixed reaction unit at three cross-sections A-A, B-B and C-C, respectively;
FIG. 5 is a schematic block diagram showing the overall construction of a preferred embodiment of the continuous type sterilizing water generating apparatus.
1. A raw water inlet; 2, an acid stock solution ejection port; 3, spraying a sodium hypochlorite stock solution; 4.5, a partition board; 6. 7, 8, 9, a baffle; 10, a first support bar; 11 a second support bar; 12, a housing; 13, an acid diluent inlet; 14, sodium hypochlorite diluent inlet; 15. 16, a hypochlorous acid sterilizing liquid outlet; 17, a first tray; 18, a second tray; 19, a raw water conveying pipeline; 20, a sodium hypochlorite sterilizing liquid outlet; 21, a third tray; 22, a first top panel; 23, a sodium hypochlorite stock solution conveying pipeline; 24, an acid stock solution conveying pipeline; 25, spraying a sodium hypochlorite stock solution; 26, an acid stock solution spray head; 27. 28, a sealing gasket; 29, a static mixing unit; 30. 50, a stop valve; 31, a pressure reducing valve; 32, a filter; 33, an electromagnetic flow meter; 34, a sodium hypochlorite stock solution storage tank; 35, an acid stock solution storage tank; 36, a first electromagnetic metering pump; 37, a second electromagnetic metering pump; 38. 39, fine adjustment and assembly; 40. 41, an exhaust valve; 42. 43, an exhaust line; 44, a sodium hypochlorite stock solution adding component; 45, an acid stock solution adding component; 46, a hypochlorous acid sterilizing liquid discharge pipeline; 47, pH meter; 48, hypochlorous acid concentration sensor; 49, a solenoid valve; 51, raw water supply pipe; 52, a second top panel; i, the first cavity, i.e. the region between first tray 17 and second tray 18; II, a second cavity, i.e. the region between the second tray 18 and the third tray 21; III, third cavity, i.e. the region between the third tray 21 and the second top plate 52.
Detailed Description
The present invention will be described below with reference to the embodiments shown in the drawings. In the present embodiment, the reaction liquid refers to a hydrochloric acid solution and a sodium hypochlorite solution of a specific concentration.
FIG. 1 is a longitudinal sectional view of a mixing reaction unit. FIGS. 2, 3 and 4 are transverse sectional views of the mixed reaction unit at three cross-sections A-A, B-B and C-C, respectively.
The mixing reaction unit is mainly composed of a sodium hypochlorite stock solution spray head 25, an acid stock solution spray head 26, a first tray 17, a second tray 18, a third tray 21, a first support bar 10, a second support bar 11 (see fig. 2-4) and a shell 12.
The first support bar 10 and the second support bar 11 extend through the area between the first tray 17 and the third tray 21 and serve as a support.
The mixing reaction unit is of a tower plate type structure, wherein first ends of the sodium hypochlorite stock solution spray head 25 and the acid stock solution spray head 26 are respectively connected with a sodium hypochlorite stock solution adding component 44 and an acid stock solution adding component 45 in fig. 5, and second ends of the sodium hypochlorite stock solution spray head 25 and the acid stock solution spray head 26 are respectively connected with a sodium hypochlorite stock solution spray outlet 3 and an acid stock solution spray outlet 2 of a first tower plate in fig. 2 in a sealing manner.
The system injects sodium hypochlorite stock solution and acid stock solution into raw water through the spray head 25 and the spray head 26 according to the pH value and the hypochlorous acid concentration preset by the controller. The raw water feed line 19 is connected to the raw water inlet 1. When synthesizing the hypochlorous acid aqueous solution, the raw water fed from the raw water feed line 19 enters the first cavity I between the first tray 17 and the second tray 18 through the raw water inlet 1, is divided into two paths by the internal partitions 4 and 5, dilutes the sodium hypochlorite raw liquid and the acid raw liquid respectively ejected from the sodium hypochlorite raw liquid ejection port 3 and the acid raw liquid ejection port 2, is further mixed by the baffles 8, 9 and 6, 7 (fig. 2), obtains diluted sodium hypochlorite and acid aqueous solution, and then enters the second cavity ii between the second tray 18 and the third tray 21 through the sodium chlorate diluent inlet 13 and the acid diluent inlet 14 respectively at the second tray 18, and performs neutralization reaction. According to practical application experience, the ratio L/D of the distance between the first tower plate 17 and the second tower plate 18 in the first cavity I to the inner diameter of the mixer is 0.1-0.5, and sodium hypochlorite and acid diluent with proper concentration can be provided for the subsequent neutralization reaction in the second cavity II; the L/D ratio of the distance between the second tower plate 18 and the third tower plate 21 in the second cavity II to the inner diameter of the mixer is 1-2, so that sufficient neutralization of sodium hypochlorite and acid diluent can be ensured, and the pH value in the cavity can be maintained between 4.5 and 5.5; the ratio L/D of the distance between the third tray 21 and the second top plate 52 to the inner diameter of the mixer is 2-3, so that the fluctuation of the concentration of the finally prepared hypochlorous acid is small, when the concentration of the hypochlorous acid is less than or equal to 100ppm, the fluctuation range of the concentration is +/-10%, and when the concentration of the hypochlorous acid is more than 100ppm, the fluctuation range of the concentration is +/-5%.
According to some embodiments of the present invention, the ratio L/D between the distance between the first tower plate 17 and the second tower plate 18 and the inner diameter of the mixer in the first cavity I is 0.1 to 0.5, such as 0.1 to 0.4, 0.1 to 0.3, 0.1 to 0.2, 0.2 to 0.5, 0.2 to 0.4, 0.2 to 0.3, 0.3 to 0.5, 0.3 to 0.4, or 0.4 to 0.5. According to some embodiments of the present invention, the ratio L/D of the distance between first tray 17 and second tray 18 and the internal diameter of the mixer in first cavity I is 0.1, 0.2, 0.3, 0.4 or 0.5.
According to some embodiments of the present invention, the ratio L/D between the distance between the second tower plate 18 and the third tower plate 21 and the inner diameter of the mixer in the second cavity II is 1 to 2, such as 1 to 1.8, 1 to 1.6, 1 to 1.4, 1 to 1.2, 1.2 to 2, 1.2 to 1.8, 1.2 to 1.6, 1.2 to 1.4, 1.4 to 2, 1.4 to 1.8, 1.4 to 1.6, 1.6 to 2, 1.6 to 1.8 or 1.8 to 2. According to some embodiments of the present invention, the ratio L/D of the distance between second tray 18 and third tray 21 in second cavity II to the internal diameter of the mixer is 1.1, 1.2, 1.3, 1.4, 1.5, 1.6, 1.7, 1.8, 1.9 or 2.
According to some embodiments of the present invention, the ratio L/D between the distance from the third tower plate 21 to the second top plate 52 and the inner diameter of the mixer is 2 to 3, such as 2 to 2.8, 2 to 2.6, 2 to 2.4, 2 to 2.2, 2.2 to 3, 2.2 to 2.8, 2.2 to 2.6, 2.2 to 2.4, 2.4 to 3, 2.4 to 2.8, 2.4 to 2.6, 2.6 to 3, 2.6 to 2.8 or 2.8 to 3. According to some embodiments of the present invention, the ratio L/D of the distance from third tray 21 to second top plate 52 to the internal diameter of the mixer is 2.1, 2.2, 2.3, 2.4, 2.5, 2.6, 2.7, 2.8, 2.9, or 3.
The third chamber III above the third tray 21 obtained by neutralization in the second chamber II is equilibrated and then leaves the mixed reaction unit 29 through the sodium hypochlorite sterilizing liquid outlet 20.
Fig. 5 is a schematic block diagram of the overall structure of a preferred embodiment of the sterilizing water generating apparatus. First, the raw water supply line 51 of the facility is connected to a tap water or groundwater supply line. A stop valve 30 is connected to the raw water supply line 51 to control the supply of raw water to the system, and a pressure reducing valve 31 is connected immediately after the stop valve. The feed water decompressed by the decompression valve 31 passes through a filter 32, passes through an electromagnetic flowmeter 33, and is supplied to the mixing reaction unit 29. The mixing reaction unit 29 is connected to a sodium hypochlorite stock solution addition unit 44 and an acid stock solution addition unit 45. In the mixing reaction unit 29, the raw water is diluted with the sodium hypochlorite stock solution and the acid stock solution, respectively, and then undergoes a neutralization reaction to obtain a hypochlorous acid aqueous solution having a specific concentration, and the hypochlorous acid aqueous solution is separated from the mixing reaction unit 29. Into the discharge line 46. The discharge line 46 is connected to a pH meter 47, a hypochlorous acid concentration sensor 48, an electromagnetic valve 49, and a shutoff valve 50. The manufactured sterilizing water adjusts the first electromagnetic metering pump 36 or the second electromagnetic metering pump 37 in real time according to the measured value by detecting the pH value and the hypochlorous acid concentration value of the manufactured sterilizing water. When the sterilizing water is used, it is obtained by opening the shut-off valve 50.
In this apparatus, the stock acid solution is stored in the stock acid solution tank 35, and the stock acid solution tank 35, the electromagnetic metering pump 37, the trimming unit 39, the exhaust valve 41, the exhaust line 43, and the addition unit 45 constitute a circulation circuit. When the exhaust valve 41 is opened, the electromagnetic metering pump 37 is started, and the acid stock solution passes through the electromagnetic metering pump 37, the fine adjustment component 39, the adding component 45, the exhaust pipeline 43 and the exhaust valve 41 in sequence and enters the liquid storage tank 35 again. This allows the gas accumulated in the electromagnetic metering pump 37, the exhaust line 43, and the addition unit 45 to be exhausted, and the gas in the acid stock solution supply line system to be removed. When the synthesis of the hypochlorous acid aqueous solution is started after the completion of the exhaust, the exhaust valve 41 is closed. The volume of the acid raw solution supplied by the electromagnetic metering pump 37 is controlled by a program, and an appropriate amount of the acid raw solution is delivered to the addition unit 45 according to the flow rate value of the supply raw water obtained by the electromagnetic flow meter 33. The delivery accuracy of the electromagnetic metering pump 37 is controlled by a fine adjustment assembly 39.
The sodium hypochlorite stock solution is stored in a sodium hypochlorite stock solution storage tank 34, and the sodium hypochlorite stock solution storage tank 34, the electromagnetic metering pump 36, the fine adjustment assembly 38, the exhaust valve 40, the exhaust pipeline 42 and the addition assembly 44 form a circulation loop. When the exhaust valve 40 is opened, the electromagnetic metering pump 36 is started, and the sodium hypochlorite stock solution passes through the electromagnetic metering pump 36, the fine adjustment component 38, the adding component 44, the exhaust pipeline 42 and the exhaust valve 40 in sequence and enters the sodium hypochlorite stock solution storage tank 34 again. This enables the gas accumulated in the electromagnetic metering pump 36, the exhaust line 42, and the addition unit 44 to be exhausted, and the gas in the sodium hypochlorite stock solution supply line system to be removed. When the synthesis of the hypochlorous acid aqueous solution is started after the completion of the exhaust, the exhaust valve 40 is closed. The volume of the sodium hypochlorite stock solution supplied by the electromagnetic metering pump 36 is controlled by a program, and an appropriate amount of the sodium hypochlorite stock solution is delivered to the adding unit 44 according to the flow rate value of the supply raw water obtained by the electromagnetic flow meter 33. The delivery accuracy of the electromagnetic metering pump 36 is controlled by a fine adjustment assembly 38.
Claims (10)
1. A mixer structure, characterized in that it comprises
The cylinder shell comprises a first top plate, a second top plate and a side wall; the first top plate comprises an acid liquor adding spray head, a sodium hypochlorite adding spray head and a raw water inlet; the second top plate comprises a hypochlorous acid sterilization liquid outlet; a first tray, a second tray, and a third tray extending through the housing; wherein,
the middle part of the first tower plate is provided with one or more raw water inlets, the first side is provided with one or more acid stock solution ejection outlets, and the second side is provided with one or more sodium hypochlorite stock solution ejection outlets;
said second tray having one or more sodium chlorate diluent inlets on a first side and one or more acid diluent inlets on a second side;
the third tray has one or more hypochlorous acid sterilizing liquid flow outlets; and
a first cavity is formed among the first tower plate, the second tower plate and the side wall and is used for simultaneously diluting high-concentration hydrochloric acid and sodium hypochlorite solution;
a second cavity is formed among the second tower plate, the third tower plate and the side wall and used for mixing to generate hypochlorous acid sterilizing water;
and a third cavity is formed among the third tower plate, the second top plate and the side wall, and is used for balancing newly synthesized hypochlorous acid sterilizing water.
2. The mixer structure of claim 1 wherein the ratio of the height between the first and second trays to the internal diameter of the mixer, L/D, is from 1/5 to 1/2.
3. The mixer structure according to claim 1 wherein the ratio of the height between the second tray and the third tray to the internal diameter of the mixer, L/D, is 1 to 2.
4. The mixer structure of claim 1 wherein the ratio of the distance between the third tray and the second ceiling to the internal diameter of the mixer, L/D, is 2 to 3.
5. The mixer structure of claim 1 wherein the first tray has two or more baffles positioned on opposite sides of the raw water inlet, the first side having one or more acid stock solution outlets has one or more baffles, the second side having one or more sodium hypochlorite stock solution outlets has one or more baffles, and the raw water is divided into two paths by the baffles after entering the first tray while diluting a metered amount of the high-concentration hydrochloric acid and sodium hypochlorite solutions from the acid addition jets and the sodium hypochlorite addition jets.
6. The mixer structure according to claim 1, wherein the first tray has a baffle on the outside of the sodium hypochlorite stock solution ejection port and the acid stock solution ejection port for further mixing the sodium hypochlorite stock solution and the acid stock solution.
7. The mixer structure according to claim 1 wherein a support bar is located between the first and third trays.
8. The mixer structure according to claim 7 wherein the support rods have one, two or more.
9. The mixer structure of claim 1 wherein the mixer is static mixing.
10. The mixer structure of claim 1 further comprising a sodium hypochlorite stock solution reservoir, an acid stock solution reservoir, a first electromagnetic metering pump and a second electromagnetic metering pump, wherein the first electromagnetic metering pump is connected at a first end to the sodium hypochlorite stock solution reservoir and at a second end to the sodium hypochlorite addition nozzle; and the first end of the second electromagnetic metering pump is connected with the acid stock solution storage tank, and the second end of the second electromagnetic metering pump is connected with the acid liquor adding spray head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020113816.6U CN212142181U (en) | 2020-01-19 | 2020-01-19 | Static mixer structure for preparing sodium hypochlorite sterilizing liquid by synthesis method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020113816.6U CN212142181U (en) | 2020-01-19 | 2020-01-19 | Static mixer structure for preparing sodium hypochlorite sterilizing liquid by synthesis method |
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| CN212142181U true CN212142181U (en) | 2020-12-15 |
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| CN202020113816.6U Expired - Fee Related CN212142181U (en) | 2020-01-19 | 2020-01-19 | Static mixer structure for preparing sodium hypochlorite sterilizing liquid by synthesis method |
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| CN (1) | CN212142181U (en) |
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2020
- 2020-01-19 CN CN202020113816.6U patent/CN212142181U/en not_active Expired - Fee Related
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| GR01 | Patent grant | ||
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201215 Termination date: 20220119 |