CN204569780U - The methyl alcohol evaporation oxidation process unit that a kind of silver-colored formaldehyde is produced - Google Patents
The methyl alcohol evaporation oxidation process unit that a kind of silver-colored formaldehyde is produced Download PDFInfo
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- CN204569780U CN204569780U CN201520165486.4U CN201520165486U CN204569780U CN 204569780 U CN204569780 U CN 204569780U CN 201520165486 U CN201520165486 U CN 201520165486U CN 204569780 U CN204569780 U CN 204569780U
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- methyl alcohol
- formaldehyde
- oxidizer
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- superheater
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Abstract
The utility model discloses the methyl alcohol evaporation oxidation process unit that a kind of silver-colored formaldehyde is produced, comprise carburetor mixing chamber, superheater, strainer, spark arrester and oxidizer, described carburetor mixing chamber adopts tube-sheet heat exchanger, the upper end cover of described tube-sheet heat exchanger is atomization space, this atomization space top is provided with gas inlet, and sidewall is provided with methanol inlet and soft water entrance, described methanol inlet and soft water entrance are connected with atomizing nozzle, enter the tube side of interchanger after the methyl alcohol of air and atomization and water gas and vapor permeation, the shell side of described interchanger then circulates thermal source; The outlet of described heat exchanger tube pass is connected with superheater, strainer, spark arrester and oxidizer entrance successively.Without the need to gas blower, and there is not atmospheric drag in the utility model; After adopting new technology, the utilization of waste heat increases greatly simultaneously, less much than the cooling load of the water coolant of old technique one tower formaldehyde, and therefore old technique adds the usage quantity of water coolant.
Description
Technical field
The utility model belongs to chemical production technology and equipment technical field, relates generally to formaldehyde production technology device.
Background technology
Existing silver-colored formaldehyde has reboiler method, Bubbling method.Because reboiler method will consume a large amount of steam, progressively eliminate at present.Bubbling method methanol evaporator is made up of methanol evaporator, methanol loop pump, superheater, batching steam distributor, mixer filter, spark arrester.The evaporation of methyl alcohol is that air is by the methyl alcohol liquid layer in vaporizer and to methanol liquid bubbling, methyl alcohol in vaporizer gets the vaporization realizing methyl alcohol with formaldehyde heat exchange by methanol loop pump, after mixing with the batching steam added outward and tail gas after methyl alcohol vaporizing by superheater steam superheating to 100 many spend to vaporize completely send into oxidizer afterwards and react.
The shortcoming of current technique: 1, the wind of gas blower passes the liquid layer of vaporizer, because liquid layer exists certain resistance, fan outlet pressure is caused to have more 5-10KPA, decrease about 15 days running periods of Formaldehyde Production every year, and increasing the service rating of blower fan, power consumption improves 1 KWh/ton of formaldehyde.2, owing to carrying out external heat after the methyl alcohol pump derivation in vaporizer, thus want multiplex two relatively high power pumps, run electric energy increase about 2 KWhs/ton of formaldehyde.3, because this technique batching steam utilizes raw steam, cause steam to have a large amount of wastes, increase about 0.2 ton of steam/ton formaldehyde thus.4, due to the raw steam superheating of this technique, the usage quantity of 0.05 ton of steam/ton formaldehyde is thereby increased.5, the methyl alcohol evaporation evaporator evaporation of this technique, adds investment and floor space.
Summary of the invention
Goal of the invention: for above-mentioned Problems existing and defect, the utility model provides the methyl alcohol evaporation oxidation process unit that a kind of silver-colored formaldehyde is produced, improve air bubbling and bring energy consumption increase, and make process unit floor space little oxidizing tower miniaturization Design, and place flexibly, there is the feature of less energy-consumption low cost.
Technical scheme: for achieving the above object, the utility model is by the following technical solutions: the methyl alcohol evaporation oxidation process unit that a kind of silver-colored formaldehyde is produced, comprise carburetor mixing chamber, superheater, strainer, spark arrester and oxidizer, described carburetor mixing chamber adopts tube-sheet heat exchanger, the upper end cover of described tube-sheet heat exchanger is atomization space, this atomization space top is provided with gas inlet, and sidewall is provided with methanol inlet and soft water entrance, described methanol inlet and soft water entrance are connected with atomizing nozzle, the tube side of interchanger is entered after the methyl alcohol of air and atomization and water gas and vapor permeation, the shell side of described interchanger then circulates thermal source, the outlet of described heat exchanger tube pass is connected with superheater, strainer, spark arrester and oxidizer entrance successively, and the formaldehyde outlet bottom described oxidizer is connected with the heat exchanging segment of superheater by pipeline, and provides thermal source.
The utility model is squeezed into by air and is carried the methyl alcohol after spray atomization and soft water, and through heat exchanging segment heating and gasifying, final feeding oxidizing tower carries out oxidation and obtains formaldehyde.In this process, methyl alcohol once obtains the quaternary gas containing methanol gas in the mode of heating and gasifying after adopting atomization mixing, for traditional Bubbling method, without the need to gas blower, and there is not atmospheric drag, and energy effective recycling waste heat, reduce steam consumption, and equipment is separately independent setting, more flexible when assembling construction, cost is lower.
As preferably, also comprise the formaldehyde absorbing tower be connected with oxidizer.
As preferably, the shell side of described carburetor mixing chamber, by the outlet of pipeline and formaldehyde absorbing tower, makes shell side to circulate the hot formaldehyde solution of formaldehyde absorbing tower outlet, thus effectively can produce the waste heat that obtain formaldehyde by oxidation of formaldehyde tower, reduction production energy consumption.
Beneficial effect: compared with prior art, the utility model has the following advantages: for traditional Bubbling method, without the need to gas blower, and there is not atmospheric drag, and energy effective recycling waste heat, reduce steam consumption, and equipment is separately independent setting, more flexible when assembling construction, cost is lower; After adopting new technology, the utilization of waste heat increases greatly simultaneously, less much than the cooling load of the water coolant of old technique one tower formaldehyde, and therefore old technique adds the usage quantity of water coolant.
Accompanying drawing explanation
Fig. 1 is the structural representation of methyl alcohol evaporation oxidation process unit described in the utility model.
Wherein, carburetor mixing chamber 1, superheater 2, strainer 3, spark arrester 4, oxidizer 5, gas inlet 6, methanol inlet 7, soft water entrance 8, atomizing nozzle 9.
Embodiment
Below in conjunction with the drawings and specific embodiments, illustrate the utility model further, these embodiments should be understood and be only not used in restriction scope of the present utility model for illustration of the utility model, after having read the utility model, the amendment of those skilled in the art to the various equivalent form of value of the present utility model has all fallen within the application's claims limited range.
As shown in Figure 1, the methyl alcohol evaporation oxidation process unit that a kind of silver-colored formaldehyde is produced, comprise carburetor mixing chamber, superheater, strainer, spark arrester and oxidizer, described carburetor mixing chamber adopts tube-sheet heat exchanger, the upper end cover of described tube-sheet heat exchanger is atomization space, this atomization space top is provided with gas inlet, and sidewall is provided with methanol inlet and soft water entrance, described methanol inlet and soft water entrance are connected with atomizing nozzle, the tube side of interchanger is entered after the methyl alcohol of air and atomization and water gas and vapor permeation, the shell side of described interchanger then circulates thermal source, this thermal source is from the formaldehyde absorption warm in formaldehyde absorbing tower, the outlet of described heat exchanger tube pass is connected with superheater, strainer, spark arrester and oxidizer entrance successively, formaldehyde outlet bottom described oxidizer is connected with the heat exchanging segment of superheater by pipeline, and provide thermal source for oxidizer, after superheater absorption heat, send into subsequent absorption tower.
This patent mainly solves the vaporization mode of methyl alcohol and water, and make full use of intrasystem waste heat, before making finally to enter oxidizer reaction with traditional quaternary automobile fitting than the same, the thermal source of superheater uses oxidizing tower reacted used heat that gas mixture is heated into overheated gas, mechanical impurity is removed again by metre filter, participating in reaction by entering oxidizer after spark arrester, so there is no change reaction conditions and essence.But because the change of mode of vaporizing makes steam consumption and consumes power and once invests all corresponding minimizing, be in particular in:
1. methyl alcohol evaporation be in absorption tower formaldehyde absorption heat, superheater what add thermal utilization is the waste heat of the exit gas of oxidizer, the steam but add water waste heat and to vaporize moisture of need not preparing burden, therefore makes full use of waste heat, reduce steam consumption, improve System steam work output.
2. owing to not needing large vapo(u)rization system, decrease a vaporizer, and decrease two methanol loop pumps and corresponding pipeline and instrument, reduce and once invest.
3. owing to decreasing methanol loop pump, and reduce the resistance of blower fan through methyl alcohol liquid layer, thus reduce production power consumption.
4. mend due to waste heat and be used for heating methanol, water and mixed steam, thus do not need a large amount of water coolants to take away waste heat, decrease the cooling load of water coolant.
5. owing to decreasing wind platform equipment, thus reduce floor space, and skinny device is put more flexible.
Claims (3)
1. the methyl alcohol evaporation oxidation process unit of a silver-colored formaldehyde production, it is characterized in that: comprise carburetor mixing chamber, superheater, strainer, spark arrester and oxidizer, described carburetor mixing chamber adopts tube-sheet heat exchanger, the upper end cover of described tube-sheet heat exchanger is atomization space, this atomization space top is provided with gas inlet, and sidewall is provided with methanol inlet and soft water entrance, described methanol inlet and soft water entrance are connected with atomizing nozzle, enter the tube side of interchanger after the methyl alcohol of air and atomization and water gas and vapor permeation, the shell side of described interchanger then circulates thermal source; The outlet of described heat exchanger tube pass is connected with superheater, strainer, spark arrester and oxidizer entrance successively, and the formaldehyde outlet bottom described oxidizer is connected with the heat exchanging segment of superheater by pipeline, and provides thermal source.
2. methyl alcohol evaporation oxidation process unit according to claim 1, is characterized in that: also comprise the formaldehyde absorbing tower be connected with oxidizer.
3. methyl alcohol evaporation oxidation process unit according to claim 2, is characterized in that: the shell side of described carburetor mixing chamber, by the outlet of pipeline and formaldehyde absorbing tower, makes shell side to circulate the hot formaldehyde solution of formaldehyde absorbing tower outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520165486.4U CN204569780U (en) | 2015-03-24 | 2015-03-24 | The methyl alcohol evaporation oxidation process unit that a kind of silver-colored formaldehyde is produced |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520165486.4U CN204569780U (en) | 2015-03-24 | 2015-03-24 | The methyl alcohol evaporation oxidation process unit that a kind of silver-colored formaldehyde is produced |
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| Publication Number | Publication Date |
|---|---|
| CN204569780U true CN204569780U (en) | 2015-08-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520165486.4U Withdrawn - After Issue CN204569780U (en) | 2015-03-24 | 2015-03-24 | The methyl alcohol evaporation oxidation process unit that a kind of silver-colored formaldehyde is produced |
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| CN (1) | CN204569780U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104693015A (en) * | 2015-03-24 | 2015-06-10 | 江苏凯茂石化科技有限公司 | Methanol evaporation and oxidation process device for production of silver-method methanal |
-
2015
- 2015-03-24 CN CN201520165486.4U patent/CN204569780U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104693015A (en) * | 2015-03-24 | 2015-06-10 | 江苏凯茂石化科技有限公司 | Methanol evaporation and oxidation process device for production of silver-method methanal |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150819 Effective date of abandoning: 20170714 |
|
| AV01 | Patent right actively abandoned |