CN206069369U - Serialization phosphoric acid Deca control system in a kind of hydrogen peroxide production process - Google Patents
Serialization phosphoric acid Deca control system in a kind of hydrogen peroxide production process Download PDFInfo
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- CN206069369U CN206069369U CN201620952069.9U CN201620952069U CN206069369U CN 206069369 U CN206069369 U CN 206069369U CN 201620952069 U CN201620952069 U CN 201620952069U CN 206069369 U CN206069369 U CN 206069369U
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Abstract
The utility model discloses serialization phosphoric acid Deca control system in a kind of hydrogen peroxide production process, including phosphoric acid delivery pump, the arrival end and the port of export of the phosphoric acid delivery pump has been respectively fixedly connected with the first pipeline and second pipe, phosphoric acid delivery pump inlet valve is provided with first pipeline, the other end of the first pipeline is fixedly connected with phosphoric acid make-up tank, the 4th pipeline and the 5th pipeline are provided with phosphoric acid make-up tank, phosphoric acid make-up tank pure water valve and air cock are respectively arranged with 4th pipeline and the 5th pipeline, the side of second pipe is provided with the 3rd pipeline, outlet valve and bypass valve are respectively arranged with second pipe and the 3rd pipeline, second pipe and the 3rd pipeline have been respectively fixedly connected with phosphoric acid head tank and hydride storage tank away from one end of phosphoric acid delivery pump.Serialization phosphoric acid Deca control system in the hydrogen peroxide production process, it is achieved thereby that automatically controlling, reduces labor intensity, and steady production reduces phosphorus content in product, improves the quality of product.
Description
Technical field
This utility model is related to chemical industry solutions and prepares and use technical field, connects in specially a kind of hydrogen peroxide production process
Continuousization phosphoric acid Deca control system.
Background technology
Need to add dilute phosphoric acid solution (mass fraction 30%) in many positions in anthraquinone oxydol production apparatus, so that
Production system part flow process causes decomposing hydrogen dioxide solution accident, such as hydride to enter to prevent hydrogen peroxide from meeting caustic digestion in acid
Before oxidizing tower, the control of pure water pH value, hydride storage tank decomposing hydrogen dioxide solution cause a certain degree of temperature rise suddenly etc. be both needed to plus
Enter phosphoric acid,diluted, and the control of the acidity Control of oxidation solution and extraction tower acidity there are strict requirements in process of production, and it is dilute
Phosphoric acid typically carries out allotment by strong phosphoric acid 85% and forms, therefore dilute phosphoric acid solution is prepared and precise and stable supply is aquatic in dioxygen
Just seem in product critically important, be not only related to the technology controlling and process of device, product quality and more have influence on the safety of device, add
Raising of some hydrogen peroxide using client's environmental consciousness, the free acidity index in hydrogen peroxide are paid special attention to by some enterprises, are swum
Low from acidity, phosphorus content is low, is conducive to sewage disposal.
Traditional production technology is the phosphoric acid bucket using 35kg, with second floor is manually transported to, is then manually added to phosphoric acid
In make-up tank, add pure water and be diluted, and frequently need to prepare, operate high labor intensive and with certain danger, it is raw
Production. art Controlled acidity is often unstable, fluctuates larger, so as to affect the phosphoric acid Deca in product quality, and hydrogen peroxide production process
Attended mode is needed, so as to lavish labor on.
Utility model content
The purpose of this utility model is to provide serialization phosphoric acid Deca control system in a kind of hydrogen peroxide production process, tool
There is realization to automatically control, reduce labor intensity, steady production reduces phosphorus content in product, improves the advantage of product quality, to solve
Certainly traditional production technology labor intensity is high, the problem of unstable product quality.
For achieving the above object, this utility model provides following technical scheme：Serialization in a kind of hydrogen peroxide production process
Phosphoric acid Deca control system, including phosphoric acid delivery pump, the arrival end and the port of export of the phosphoric acid delivery pump have been respectively fixedly connected with
First pipeline and second pipe, are provided with phosphoric acid delivery pump inlet valve, the other end of first pipeline on first pipeline
Be fixedly connected with phosphoric acid make-up tank, on the phosphoric acid make-up tank, be provided with the 4th pipeline and the 5th pipeline, the 4th pipeline and
Phosphoric acid make-up tank pure water valve and air cock are respectively arranged with 5th pipeline, the side of the second pipe is provided with the 3rd pipe
Outlet valve and bypass valve are respectively arranged with road, the second pipe and the 3rd pipeline, the second pipe and the 3rd pipeline are remote
Phosphoric acid head tank and hydride storage tank are respectively fixedly connected with from one end of phosphoric acid delivery pump, the side of the phosphoric acid head tank sets
Liquidometer is equipped with, the phosphoric acid head tank side is fixedly connected with the top of phosphoric acid filter by the 6th pipeline, the described 6th
Phosphoric acid filter inlet valve is provided with pipeline, the bottom of the phosphoric acid filter is provided with the 8th pipeline, the 8th pipeline
On be provided with blowoff valve, the side of the phosphoric acid filter is provided with the 7th pipeline, two tune is provided with the 7th pipeline
Section valve service valve and regulating valve, the regulating valve are located between two regulating valve service valves, the 7th pipeline correspondence regulating valve
With the position of regulating valve service valve be provided with phosphoric acid regulating valve bypass, on the 7th pipeline positioned at regulating valve service valve just under
Side is provided with improvement visor and visor service valve, and the visor service valve is located at the underface for improving visor, the hydride storage
The side of groove is fixedly connected with the arrival end of hydrogenation liquid pump by the 9th pipeline, is provided with service valve and phosphorus on the 9th pipeline
Sour inlet point, the phosphoric acid inlet point are located at the underface of the 7th pipe outlet, the port of export and the tenth of the hydrogenation liquid pump
One end of pipeline is fixedly connected, and hydride pump outlet check valve and online PH meters are provided with the tenth pipeline, described online
PH meters are positioned at the surface of hydride pump outlet check valve.
Preferably, bottom of the bottom of the 5th pipeline inside phosphoric acid make-up tank, the phosphoric acid make-up tank it is interior
Portion is provided with tubulation distributor and heating coil.
Preferably, the phosphoric acid inlet point is arranged on the 9th duct bottom, and phosphoric acid inlet point be shaped as it is U-shaped.
Preferably, the volume of the phosphoric acid make-up tank is a hectostere.
Compared with prior art, this utility model has the advantages that：
1st, serialization phosphoric acid Deca control system in the hydrogen peroxide production process, by arranging phosphoric acid make-up tank, the 4th pipe
The cooperation in road and the 5th pipeline, after high-concentration phosphoric acid fortune comes, is discharged in the larger phosphoric acid make-up tank of volume, according to analysis meter
Calculate, directly pure water of the addition by metering in phosphoric acid make-up tank, and air is passed through by the 5th pipeline, incorporation time is 30
More than minute, so that phosphoric acid solution can be full and uniform, analyze it is qualified after it is stand-by, without the phosphoric acid storage tank with high concentration and
Delivery pump, reduces damage of the high-concentration phosphoric acid to pipe-line equipment and personnel, reduce temperature it is low when phosphoric acid crystallization situation it is general
Rate, while decreasing preparation number of times.
2nd, serialization phosphoric acid Deca control system in the hydrogen peroxide production process, by phosphoric acid head tank, liquidometer and phosphorus
The cooperation of sour delivery pump, when phosphoric acid head tank liquid level it is low to setting value when, enable automatically phosphoric acid delivery pump, add toward phosphoric acid head tank
Phosphoric acid, when liquid level rises to another setting value, phosphoric acid delivery pump is automatically stopped, and reduces the manipulation strength of workman, realizes phosphorus
The automatic transport of acid.
3rd, serialization phosphoric acid Deca control system in the hydrogen peroxide production process, sets one the by conveying pump discharge in phosphoric acid
Three pipelines directly remove hydride storage tank, can in hydride storage tank the decomposing hydrogen dioxide solution initial stage be in emergency circumstances capable of achieving it is quick plus
Acid, suppresses hydrogen peroxide further to decompose, so that the safety of device is protected.
4th, serialization phosphoric acid Deca control system in the hydrogen peroxide production process, by newly setting phosphoric acid filter, because
Phosphoric acid is technical grade, there is a certain amount of impurity, and the Deca flow of phosphoric acid is less, and pipe diameter is also less, and Jing is commonly present stifled
Plug cutout phenomenon, after increasing phosphoric acid filter, so as to the situation for seldom occurring stopping.
5th, serialization phosphoric acid Deca control system in the hydrogen peroxide production process, improves visor by adopting, regards in improvement
In mirror, top sets a more small-bore stainless steel tube and reaches in the inside for improving visor, makes it to form water column, so as to avoid Jing
Often there is wall flow phenomenon, in addition, a video monitoring is set to master control room in this position, it is therefore an objective to can grasp in the very first time and stop
Situation.
6th, serialization phosphoric acid Deca control system in the hydrogen peroxide production process, by the improvement to Deca position, originally
Enter in the top of the 9th pipeline, now make into from the bottom of the 9th pipeline to enter, in order to prevent air from entering, so that phosphoric acid enters
Access point is shaped to U-shaped, prevents from forming vapour lock, and the benefit for making bottom entrance into is that work often occurs in Jing when device stops
Float in improvement visor as liquid, have impact on the effect of phosphoric acid video monitoring, it is impossible to carry out cutout observation, reason is working solution
Density it is little, the density of phosphoric acid is big, and when in resting state, the light working solution of density can float to the big top of density, but also
It is upper heavy to be not easy, by improving, so as to completely solve this problem.
7th, serialization phosphoric acid Deca control system in the hydrogen peroxide production process, by hydrogenation liquid pump outlet set one
Line PH is counted, and is observed acidity change according to pH value at any time, and is linked with the flow control valve of phosphoric acid, so as to avoid acidity
Big ups and downs.
8th, serialization phosphoric acid Deca control system in the hydrogen peroxide production process, it is achieved thereby that automatically controlling, reduces labor
Fatigue resistance, steady production reduce phosphorus content in product, improve the quality of product.
Description of the drawings
Fig. 1 is this utility model schematic flow sheet.
In figure：1 phosphoric acid delivery pump inlet valve, 2 phosphoric acid delivery pumps, 3 outlet valves, 4 bypass valves, 5 phosphoric acid make-up tank pure water valves,
6 air cocks, 7 liquidometers, 8 phosphoric acid head tanks, 9 phosphoric acid filter inlet valves, 10 phosphoric acid filters, 11 blowoff valves, 12 phosphoric acid are adjusted
Visor, 14 regulating valves, 15 regulating valve service valves, 16 visor service valves, 17 online PH meters, 18 hydrides are improved in section valve bypass, 13
Pump outlet check valve, 19 hydrogenation liquid pumps, 20 phosphoric acid inlet points, 21 service valves, 22 hydride storage tanks, 23 phosphoric acid make-up tanks, 24 the
One pipeline, 25 second pipes, 26 the 3rd pipelines, 27 the 4th pipelines, 28 the 5th pipelines, 29 the 6th pipelines, the 30, the 7th pipeline, 31
8th pipeline, 32 the 9th pipelines, 33 the tenth pipelines.
Specific embodiment
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only this utility model a part of embodiment, rather than whole
Embodiment.Based on the embodiment in this utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment for being obtained, belongs to the scope of this utility model protection.
Fig. 1 is referred to, this utility model provides a kind of technical scheme：Serialization phosphoric acid in a kind of hydrogen peroxide production process
Deca control system, including phosphoric acid delivery pump 2, by arranging phosphoric acid delivery pump 2, make that the conveying of phosphoric acid is convenient, and phosphoric acid is defeated
Send the arrival end and the port of export of pump 2 to be respectively fixedly connected with the first pipeline 24 and second pipe 25, be provided with the first pipeline 24
Phosphoric acid delivery pump inlet valve 1, the other end of the first pipeline 24 are fixedly connected with phosphoric acid make-up tank 23, the volume of phosphoric acid make-up tank 23
For a hectostere, the 4th pipeline 27 and the 5th pipeline 28 on phosphoric acid make-up tank 23, are provided with, by arranging the 4th pipeline 27, are made
Pure water be added to it is convenient in phosphoric acid make-up tank 23, by arrange the 5th pipeline 28, admit air in phosphoric acid make-up tank 23
It is convenient, by the cooperation for arranging phosphoric acid make-up tank 23, the 4th pipeline 27 and the 5th pipeline 28, come in high-concentration phosphoric acid fortune
Afterwards, it is discharged in the larger phosphoric acid make-up tank 23 of volume, according to analytical calculation, directly adds by metering in phosphoric acid make-up tank 23
Pure water, and air is passed through by the 5th pipeline 28, incorporation time is more than 30 minutes, so that phosphoric acid solution can be fully equal
It is even, analyze qualified rear stand-by, without phosphoric acid storage tank and delivery pump with high concentration, high-concentration phosphoric acid is reduced to pipeline
Equipment and the damage of personnel, reduce temperature it is low when phosphoric acid crystallize the probability of situation, while decrease preparation number of times, the 5th pipe
Bottom of the bottom in road 28 inside phosphoric acid make-up tank 23, phosphoric acid make-up tank 23 are internally provided with tubulation distributor and heating
Coil pipe, by arranging heating coil inside phosphoric acid make-up tank 23, the heating when temperature is low is used, in order to avoid bottom crystal, blocking pipe
Road, is respectively arranged with phosphoric acid make-up tank pure water valve 5 and air cock 6 on the 4th pipeline 27 and the 5th pipeline 28, second pipe 25
Side is provided with the 3rd pipeline 26, directly removes hydride storage tank 22 by setting one the 3rd pipeline 26 in the outlet of phosphoric acid delivery pump 2, can
In hydride storage tank 22, the decomposing hydrogen dioxide solution initial stage is in emergency circumstances capable of achieving quick acid adding, suppresses hydrogen peroxide further to decompose,
So that the safety of device is protected, on second pipe 25 and the 3rd pipeline 26, outlet valve 3 and bypass valve are respectively arranged with
4, second pipe 25 and the 3rd pipeline 26 have been respectively fixedly connected with phosphoric acid head tank 8 and hydrogenation away from one end of phosphoric acid delivery pump 2
Liquid storage tank 22, the side of phosphoric acid head tank 8 are provided with liquidometer 7, and 8 side of phosphoric acid head tank is by the 6th pipeline 29 and phosphoric acid mistake
The top of filter 10 is fixedly connected, by the cooperation of phosphoric acid head tank 8, liquidometer 7 and phosphoric acid delivery pump 2, when phosphoric acid head tank 8
Liquid level it is low to setting value when, enable automatically phosphoric acid delivery pump 2, phosphorate acid toward phosphoric acid head tank 8, when liquid level rises to another setting
During value, phosphoric acid delivery pump 2 is automatically stopped, and reduces the manipulation strength of workman, realizes the automatic transport of phosphoric acid, the 6th pipeline 29
On be provided with phosphoric acid filter inlet valve 9, the bottom of phosphoric acid filter 10 is provided with the 8th pipeline 31, by newly set phosphoric acid filtration
Device 10, because phosphoric acid be technical grade, there is a certain amount of impurity, and the Deca flow of phosphoric acid be less, pipe diameter is also less,
Jing is commonly present plug cutout phenomenon, after increasing phosphoric acid filter 10, so as to the situation for seldom occurring stopping, sets on the 8th pipeline 31
Blowoff valve 11 is equipped with, the side of phosphoric acid filter 10 is provided with the 7th pipeline 30, two regulating valves are provided with the 7th pipeline 30
Service valve 15 and regulating valve 14, regulating valve 14 are located between two regulating valve service valves 15, the correspondence regulating valve 14 of the 7th pipeline 30
The position of regulating valve service valve 15 is provided with phosphoric acid regulating valve bypass 12, positioned at regulating valve service valve 15 on the 7th pipeline 30
Underface is provided with improvement visor 13 and visor service valve 16, and visor service valve 16 is located at the underface for improving visor 13, passes through
Using visor 13 is improved, in visor 13 is improved, top sets a more small-bore stainless steel tube and reaches in the inside for improving visor 13
Go, make it to form water column, wall flow phenomenon often occur so as to avoid Jing, in addition, a video monitoring is set to master control room in this position,
Purpose is can to grasp cutout situation in the very first time, and the side of hydride storage tank 22 is by the 9th pipeline 32 and hydrogenation liquid pump 19
Arrival end be fixedly connected, service valve 21 and phosphoric acid inlet point 20 are provided with the 9th pipeline 32, phosphoric acid inlet point 20 is arranged on
9th pipeline, 32 bottom, and phosphoric acid inlet point 20 be shaped as it is U-shaped, phosphoric acid inlet point 20 be located at 30 port of export of the 7th pipeline just
Lower section, by the improvement to Deca position, originally entered in the top of the 9th pipeline 32, now made the bottom from the 9th pipeline 32 into
Into in order to prevent air from entering, so that phosphoric acid inlet point 20 is shaped to U-shaped, preventing from forming vapour lock, make bottom into
Into benefit be when device stops Jing often occur working solution float to improvement visor 13 in, have impact on phosphoric acid video monitoring
Effect, it is impossible to carry out cutout observation, reason is that the density of working solution is little, the density of phosphoric acid is big, when in resting state, density
Light working solution can float to the big top of density, but also be not easy it is upper heavy, by improving, so as to completely solve this problem,
The port of export of hydrogenation liquid pump 19 is fixedly connected with one end of the tenth pipeline 33, sets an online PH by the outlet in hydrogenation liquid pump 19
Meter 17, is observed acidity change at any time, and is linked with the flow control valve 14 of phosphoric acid, so as to avoid acidity according to pH value
Big ups and downs, hydride pump outlet check valve 18 and online PH meters 17 are provided with the tenth pipeline 33, online PH meter 17 is located at
The surface of hydride pump outlet check valve 18.
During use, according to the new strong phosphoric acid amount of purchase for entering, open pure water valve 5 and pure water added into phosphoric acid make-up tank 23,
According to pure water and strong phosphoric acid 1：5 proportioning, then opening air cock 6 and phosphoric acid delivery pump 2 carries out mixing 30 minutes, then carries out
Sample analysis, can carry out next step operation if analysis is qualified.
Serialization phosphoric acid Deca uses operating procedure：Phosphoric acid is added to phosphoric acid head tank 8 by phosphoric acid delivery pump 2, works as liquid
When position reaches 80%, stop phosphoric acid delivery pump 2 and work, by controlling to adjust valve 14, the observation acid adding amount of visor 13 is improved in acid adding
Size, online PH meter 17 can monitor mixed pH value (1.5-2.5) on-line, and meeting an urgent need acid adding in hydride storage tank 22 can be direct
Start phosphoric acid delivery pump 2, close outlet valve 3, open bypass valve 4, phosphoric acid filter 10 according to circumstances carries out routine cleaning.
In sum：Serialization phosphoric acid Deca control system in the hydrogen peroxide production process, it is achieved thereby that automatically control,
Labor intensity is reduced, steady production reduces phosphorus content in product, improves the quality of product.
While there has been shown and described that embodiment of the present utility model, for the ordinary skill in the art,
Be appreciated that these embodiments can be carried out various changes in the case of without departing from principle of the present utility model and spirit, repair
Change, replace and modification, scope of the present utility model is defined by the appended claims and the equivalents thereof.
Claims (4)
1. a kind of serialization phosphoric acid Deca control system in hydrogen peroxide production process, including phosphoric acid delivery pump (2), its feature exist
In：The arrival end and the port of export of the phosphoric acid delivery pump (2) has been respectively fixedly connected with the first pipeline (24) and second pipe (25),
Phosphoric acid delivery pump inlet valve (1) is provided with first pipeline (24), the other end of first pipeline (24) is fixedly connected
There is phosphoric acid make-up tank (23), on the phosphoric acid make-up tank (23), be provided with the 4th pipeline (27) and the 5th pipeline (28), described
Phosphoric acid make-up tank pure water valve (5) and air cock (6), the second pipe are respectively arranged with four pipelines (27) and the 5th pipeline (28)
The side in road (25) is provided with the 3rd pipeline (26), is respectively arranged with outlet on the second pipe (25) and the 3rd pipeline (26)
Valve (3) and bypass valve (4), the second pipe (25) and the 3rd pipeline (26) are solid respectively away from one end of phosphoric acid delivery pump (2)
Surely phosphoric acid head tank (8) and hydride storage tank (22) are connected with, the side of the phosphoric acid head tank (8) is provided with liquidometer (7),
Phosphoric acid head tank (8) side is fixedly connected with the top of phosphoric acid filter (10) by the 6th pipeline (29), and the described 6th
Phosphoric acid filter inlet valve (9) is provided with pipeline (29), the bottom of the phosphoric acid filter (10) is provided with the 8th pipeline
(31) blowoff valve (11), is provided with the 8th pipeline (31), the side of the phosphoric acid filter (10) is provided with the 7th pipe
Road (30), is provided with two regulating valve service valves (15) and regulating valve (14), the regulating valve on the 7th pipeline (30)
(14) between two regulating valve service valves (15), the 7th pipeline (30) corresponds to regulating valve (14) and regulating valve service valve
(15) position is provided with phosphoric acid regulating valve bypass (12), is just being located at regulating valve service valve (15) on the 7th pipeline (30)
Lower section is provided with improvement visor (13) and visor service valve (16), the visor service valve (16) positioned at improvement visor (13) just
Lower section, the side of the hydride storage tank (22) are fixedly connected with the arrival end of hydrogenation liquid pump (19) by the 9th pipeline (32),
It is provided with service valve (21) and phosphoric acid inlet point (20) on 9th pipeline (32), the phosphoric acid inlet point (20) is positioned at the 7th
The underface of pipeline (30) port of export, the port of export of the hydrogenation liquid pump (19) are fixedly connected with one end of the tenth pipeline (33),
Hydride pump outlet check valve (18) and online PH meters (17) are provided with tenth pipeline (33), the online PH counts (17)
Positioned at the surface of hydride pump outlet check valve (18).
2. serialization phosphoric acid Deca control system in a kind of hydrogen peroxide production process according to claim 1, its feature exist
In：The bottom of the 5th pipeline (28) near the internal bottom of phosphoric acid make-up tank (23), the phosphoric acid make-up tank (23) it is interior
Portion is provided with tubulation distributor and heating coil.
3. serialization phosphoric acid Deca control system in a kind of hydrogen peroxide production process according to claim 1, its feature exist
In：The phosphoric acid inlet point (20) is arranged on the 9th pipeline (32) bottom, and phosphoric acid inlet point (20) be shaped as it is U-shaped.
4. serialization phosphoric acid Deca control system in a kind of hydrogen peroxide production process according to claim 1, its feature exist
In：The volume of the phosphoric acid make-up tank (23) is a hectostere.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620952069.9U CN206069369U (en) | 2016-08-24 | 2016-08-24 | Serialization phosphoric acid Deca control system in a kind of hydrogen peroxide production process |
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| CN201620952069.9U CN206069369U (en) | 2016-08-24 | 2016-08-24 | Serialization phosphoric acid Deca control system in a kind of hydrogen peroxide production process |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116477579A (en) * | 2023-02-16 | 2023-07-25 | 浙江恒逸石化研究院有限公司 | Method for improving extraction yield and product quality of hydrogen peroxide produced by anthraquinone process |
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2016
- 2016-08-24 CN CN201620952069.9U patent/CN206069369U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116477579A (en) * | 2023-02-16 | 2023-07-25 | 浙江恒逸石化研究院有限公司 | Method for improving extraction yield and product quality of hydrogen peroxide produced by anthraquinone process |
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