CN214181824U - Hydrogen peroxide solution temperature raising device for film-falling evaporator - Google Patents

Hydrogen peroxide solution temperature raising device for film-falling evaporator Download PDF

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Publication number
CN214181824U
CN214181824U CN202023337450.XU CN202023337450U CN214181824U CN 214181824 U CN214181824 U CN 214181824U CN 202023337450 U CN202023337450 U CN 202023337450U CN 214181824 U CN214181824 U CN 214181824U
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fixedly connected
hydrogen peroxide
film evaporator
falling film
cooler
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熊维根
许勇华
郑家根
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Anhui Huaertai Chemical Industry Co Ltd
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Anhui Huaertai Chemical Industry Co Ltd
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Abstract

The utility model discloses a hydrogen peroxide solution temperature raising device for a falling film evaporator, which comprises a falling film evaporator, one side of the falling film evaporator is fixedly connected with a steam ejector, one side of the steam ejector is fixedly connected with a steam filter, the other side of the falling film evaporator is fixedly connected with a rectifying tower, one side of the rectifying tower is fixedly connected with a safety water tank, the upper end of one side of the falling film evaporator is fixedly connected with a non-condensable gas cooler, the lower end of the non-condensable gas cooler is fixedly connected with a concentrated product vacuum pump, one side of the rectifying tower is fixedly connected with a distillate storage tank, the lower end of the distillate storage tank is fixedly connected with a distillate pump, the lower end of the falling film evaporator is fixedly connected with an evaporation circulating pump, the upper end of the evaporation circulating pump is fixedly connected with a technical-grade hydrogen peroxide solution cooler, the utility model has the advantages of simple structure, novel design, simple construction and simple operation, the investment cost is low, the productivity is effectively improved, and the energy consumption is reduced.

Description

Hydrogen peroxide solution temperature raising device for film-falling evaporator
Technical Field
The utility model relates to a hydrogen peroxide solution temperature raising technical field specifically is a hydrogen peroxide solution temperature raising device for advancing falling film evaporator.
Background
The dilute raw material hydrogen peroxide used by the hydrogen peroxide concentration device is discharged from a heavy material outlet of a dilute aromatic hydrocarbon separator, the temperature of the hydrogen peroxide is about 27 ℃, the hydrogen peroxide enters a hydrogen peroxide filter through a hydrogen peroxide booster pump, and the hydrogen peroxide is mixed with concentrated hydrogen peroxide at the outlet of an evaporation circulating pump after being heated by a chemical-grade hydrogen peroxide heat exchanger and then enters the top of a falling film evaporator. The temperature of the dilute raw material hydrogen peroxide after being heated by the chemical grade hydrogen peroxide heat exchanger is very low, and is approximately 30 ℃ (the flow of the technical grade hydrogen peroxide exchanging heat with the raw material dilute hydrogen peroxide is only 1.5-2 cubic/hour, while the flow of the dilute raw material hydrogen peroxide is 9 cubic/hour), the temperature after being mixed with the hydrogen peroxide at the outlet of the evaporation circulating pump is about 45 ℃, the mixed hydrogen peroxide at 45 ℃ enters the falling film evaporator, and the production requirement can be met only by a large amount of steam heat exchange and temperature raising. A large amount of steam is consumed, so that the production cost of the hydrogen peroxide is increased, and the production safety is threatened. The generated steam condensate water is sent into a circulating water system, and particularly in summer, the temperature of the circulating water is invisibly increased, so that the power consumption is increased.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a go into for falling liquid film evaporator hydrogen peroxide solution temperature raising device to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: including falling film evaporator, falling film evaporator one side fixedly connected with steam ejector, steam ejector one side fixedly connected with steam filter, falling film evaporator opposite side fixedly connected with rectifying column, rectifying column one side fixedly connected with safety water pitcher, falling film evaporator one side upper end fixedly connected with noncondensable gas cooler, noncondensable gas cooler lower extreme fixedly connected with concentrate vacuum pump, rectifying column one side fixedly connected with distillate holding vessel, distillate holding vessel lower extreme fixedly connected with distillate pump, falling film evaporator lower extreme fixedly connected with evaporation circulating pump, evaporation circulating pump upper end fixedly connected with technical grade hydrogen peroxide solution cooler, rectifying column lower extreme fixedly connected with chemical grade hydrogen peroxide cooler, chemical grade hydrogen peroxide cooler one side fixedly connected with heat exchanger, the chemical-grade hydrogen peroxide cooler is characterized in that a concentrated product intermediate tank is fixedly connected to the upper end of the chemical-grade hydrogen peroxide cooler, a concentrated product pump is fixedly connected to the lower end of the concentrated product intermediate tank, and a hydrogen peroxide filter is fixedly connected to the lower end of the chemical-grade hydrogen peroxide cooler.
Further, safety water pitcher one side fixedly connected with inlet tube, and the inside fixed mounting of inlet tube has the valve, safety water pitcher passes through raceway and falling film evaporator fixed connection.
Furthermore, the concentrated product vacuum pump, the distilled liquid pump and the concentrated product pump are all fixedly connected with a discharge pipe, and a valve is fixedly installed inside the discharge pipe connected with the concentrated product vacuum pump and the distilled liquid pump.
Further, the heat exchanger is fixedly connected with the falling film evaporator through a connecting pipe.
Furthermore, the chemical-grade hydrogen peroxide cooler and the technical-grade hydrogen peroxide cooler are respectively and fixedly connected with the intermediate tank of the concentrated product through connecting pipes.
Furthermore, the steam filter and the hydrogen peroxide filter are both provided with two groups.
Compared with the prior art, the beneficial effects of the utility model are that:
1. after the heat exchanger is added to be put into operation, the steam consumption is reduced to 3.2-3.7 tons per hour from 3.5-4 tons per hour, 0.2 ton of steam is saved per hour, the steam manufacturing cost is 183.48 tons per yuan, the thick product is calculated according to 250 days of production all the year round, 1200 tons of steam are saved each year, and 22 ten thousand of cost is saved each year;
2. the utility model adopts the non-condensable gas cooler, the chemical grade hydrogen peroxide cooler and the technical grade hydrogen peroxide cooler, so that the temperature of the steam condensate water is reduced from 62 ℃ to 50 ℃, and the steam condensate water is discharged into the circulating water pool, and particularly, the circulating water temperature is basically not influenced in summer;
3. the utility model discloses simple structure, the modern design, construction and easy operation, the investment cost is low, the effectual productivity that has improved has reduced energy resource consumption.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
In fig. 1: 1-falling film evaporator; 2-a steam ejector; 3-a steam filter; 4-a rectifying tower; 5-a safe water tank; 6-noncondensable gas cooler; 7-concentrated vacuum pump; 8-distillate storage tank; 9-a distilled liquid pump; 10-an evaporation circulating pump; 11-chemical grade hydrogen peroxide cooler; 12-a heat exchanger; 13-technical grade hydrogen peroxide cooler; 14-intermediate tank for concentrated product; 15-concentrated product pump; 16-hydrogen peroxide filter.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1, the present invention provides a technical solution: including falling film evaporator 1, 1 one side fixedly connected with steam ejector 2 of falling film evaporator, 2 one side fixedly connected with steam filter 3 of steam ejector, 1 opposite side fixedly connected with rectifying column 4 of falling film evaporator, 4 one side fixedly connected with safety water pitcher 5 of rectifying column, 1 one side upper end fixedly connected with noncondensable gas cooler 6 of falling film evaporator, 6 lower extreme fixedly connected with concentrate vacuum pump 7 of noncondensable gas cooler, 4 one side fixedly connected with distillate holding vessel 8 of rectifying column, 8 lower extremes of distillate holding vessel fixedly connected with distillate pump 9, 1 lower extreme fixedly connected with evaporation circulating pump 10 of falling film evaporator, the technical grade hydrogen peroxide solution cooler 13 of fixedly connected with in the upper end of evaporation circulating pump 10, 4 lower extremes of rectifying column fixedly connected with chemical grade hydrogen peroxide solution cooler 11, the chemical-grade hydrogen peroxide cooler is characterized in that a heat exchanger 12 is fixedly connected to one side of the chemical-grade hydrogen peroxide cooler 11, a concentrated product intermediate tank 14 is fixedly connected to the upper end of the chemical-grade hydrogen peroxide cooler 11, a concentrated product pump 15 is fixedly connected to the lower end of the concentrated product intermediate tank 14, and a hydrogen peroxide filter 16 is fixedly connected to the lower end of the chemical-grade hydrogen peroxide cooler 11.
Further, safety water tank 5 one side fixedly connected with inlet tube, and the inside fixed mounting of inlet tube has the valve, safety water tank 5 passes through raceway and falling film evaporator 1 fixed connection.
Further, the concentrated product vacuum pump 7, the distilled liquid pump 9 and the concentrated product pump 15 are all fixedly connected with a discharge pipe, and a valve is fixedly installed inside the discharge pipe connected with the concentrated product vacuum pump 7 and the distilled liquid pump 9.
Further, the heat exchanger 12 is fixedly connected with the falling film evaporator 1 through a connecting pipe.
Further, the chemical-grade hydrogen peroxide cooler 11 and the technical-grade hydrogen peroxide cooler 13 are respectively and fixedly connected with the concentrated product intermediate tank 14 through connecting pipes.
Further, two groups of the steam filter 3 and the hydrogen peroxide filter 16 are arranged.
The working principle is as follows: when the mixed hydrogen peroxide evaporator is used, the temperature of the diluted product raw material hydrogen peroxide is increased to be above 40 ℃ from the current 30 ℃ by utilizing the waste heat of the steam condensate (the temperature of the condensate is about 62 ℃) through the heat exchanger 12, the temperature of the mixed hydrogen peroxide at the temperature can reach about 55 ℃, the mixed hydrogen peroxide at the temperature enters the falling film evaporator 1 to be mixed with the hydrogen peroxide in the original tower, and the temperature is increased to 57-58 ℃ after the steam heat exchange. The original dilute raw material hydrogen peroxide which is not heated up needs 3.5 to 4 tons of steam per hour when being concentrated into 50 percent concentrated hydrogen peroxide, and after heat exchange and temperature increase through a heat exchanger 12, the consumed steam per hour is 3.3 to 3.8 tons. The temperature of the steam condensate is reduced to 50 ℃ after heat exchange, and the steam condensate enters circulating water, so that the influence on the temperature of the circulating water in the rectifying tower 4 is reduced.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. A hydrogen peroxide solution temperature raising device for a falling film evaporator comprises a falling film evaporator (1) and is characterized in that: the device is characterized in that a steam ejector (2) is fixedly connected to one side of the falling-film evaporator (1), a steam filter (3) is fixedly connected to one side of the steam ejector (2), a rectifying tower (4) is fixedly connected to the other side of the falling-film evaporator (1), a safety water tank (5) is fixedly connected to one side of the rectifying tower (4), a non-condensable gas cooler (6) is fixedly connected to the upper end of one side of the falling-film evaporator (1), a concentrated product vacuum pump (7) is fixedly connected to the lower end of the non-condensable gas cooler (6), a distillate storage tank (8) is fixedly connected to one side of the rectifying tower (4), a distillate pump (9) is fixedly connected to the lower end of the distillate storage tank (8), an evaporation circulating pump (10) is fixedly connected to the lower end of the falling-film evaporator (1), and a hydrogen peroxide solution cooler (13) is fixedly connected to the upper end of the evaporation circulating pump (10), rectifying column (4) lower extreme fixedly connected with chemical level hydrogen peroxide cooler (11), chemical level hydrogen peroxide cooler (11) one side fixedly connected with heat exchanger (12), groove (14) in the middle of chemical level hydrogen peroxide cooler (11) upper end fixedly connected with thick product, groove (14) lower extreme fixedly connected with thick product pump (15) in the middle of the thick product, chemical level hydrogen peroxide cooler (11) lower extreme fixedly connected with hydrogen peroxide filter (16).
2. The hydrogen peroxide solution temperature raising device for the falling film evaporator according to claim 1, which is characterized in that: safety water pitcher (5) one side fixedly connected with inlet tube, and the inside fixed mounting of inlet tube has the valve, safety water pitcher (5) are through raceway and falling film evaporation ware (1) fixed connection.
3. The hydrogen peroxide solution temperature raising device for the falling film evaporator according to claim 1, which is characterized in that: the concentrated product vacuum pump (7), the distilled liquid pump (9) and the concentrated product pump (15) are all fixedly connected with discharge pipes, and valves are fixedly arranged inside the discharge pipes connected with the concentrated product vacuum pump (7) and the distilled liquid pump (9).
4. The hydrogen peroxide solution temperature raising device for the falling film evaporator according to claim 1, which is characterized in that: the heat exchanger (12) is fixedly connected with the falling film evaporator (1) through a connecting pipe.
5. The hydrogen peroxide solution temperature raising device for the falling film evaporator according to claim 1, which is characterized in that: the chemical-grade hydrogen peroxide cooler (11) and the technical-grade hydrogen peroxide cooler (13) are respectively and fixedly connected with the concentrated product intermediate tank (14) through connecting pipes.
6. The hydrogen peroxide solution temperature raising device for the falling film evaporator according to claim 1, which is characterized in that: two groups of steam filters (3) and two groups of hydrogen peroxide filters (16) are arranged.
CN202023337450.XU 2020-12-30 2020-12-30 Hydrogen peroxide solution temperature raising device for film-falling evaporator Active CN214181824U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202023337450.XU CN214181824U (en) 2020-12-30 2020-12-30 Hydrogen peroxide solution temperature raising device for film-falling evaporator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202023337450.XU CN214181824U (en) 2020-12-30 2020-12-30 Hydrogen peroxide solution temperature raising device for film-falling evaporator

Publications (1)

Publication Number Publication Date
CN214181824U true CN214181824U (en) 2021-09-14

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202023337450.XU Active CN214181824U (en) 2020-12-30 2020-12-30 Hydrogen peroxide solution temperature raising device for film-falling evaporator

Country Status (1)

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CN (1) CN214181824U (en)

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