CN218741873U - Methanol vaporizer for producing formaldehyde by iron-molybdenum method - Google Patents
Methanol vaporizer for producing formaldehyde by iron-molybdenum method Download PDFInfo
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- CN218741873U CN218741873U CN202222124860.9U CN202222124860U CN218741873U CN 218741873 U CN218741873 U CN 218741873U CN 202222124860 U CN202222124860 U CN 202222124860U CN 218741873 U CN218741873 U CN 218741873U
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- molybdenum
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Abstract
The utility model belongs to the technical field of chemical industry equipment, concretely relates to methyl alcohol vaporizer that is used for iron molybdenum method formaldehyde production. The vaporizer comprises a shell, wherein a gas heating layer, a middle spraying layer, a gas preheating layer and a top spraying layer are sequentially arranged in the shell from bottom to top; the middle spraying layer and the top spraying layer are both provided with atomizing nozzles. The utility model provides a catalyst operation later stage reaction bed temperature too high, the side reaction increases, and absorption tower absorption effect variation scheduling problem to reduce reactor later stage catalyst reaction temperature, catalyst life increase service time more than a week.
Description
Technical Field
The utility model belongs to the technical field of chemical industry equipment, concretely relates to methanol vaporizer for iron molybdenum method formaldehyde production.
Background
The methanol vaporizer in the existing iron-molybdenum formaldehyde production process is a top-section spraying device, and has no obvious influence at the initial operation stage of the device. But the temperature of the reactor is higher in the later stage of catalyst operation, the reaction yield and the absorption effect of the absorption tower are influenced, and the service life of the catalyst is indirectly shortened.
Disclosure of Invention
The utility model aims at providing a methanol vaporizer for iron molybdenum method formaldehyde production to energy saving and consumption reduction, thereby reduction in production cost.
In order to realize the purpose, the technical scheme of the utility model is as follows:
a methanol vaporizer for formaldehyde production by an iron-molybdenum method comprises a shell, wherein a gas heating layer, a middle spraying layer, a gas preheating layer and a top spraying layer are sequentially arranged in the shell from bottom to top;
the middle spraying layer and the top spraying layer are both provided with atomizing nozzles.
In the above technical scheme, further, a plurality of the atomizing nozzles are uniformly distributed along the length direction of the top spraying layer and the middle spraying layer.
In the above technical solution, further, the top spray layer is provided with 10 atomizing nozzles.
In the above technical solution, further, the middle part spray layer is provided with 4 atomizing nozzles.
In the above technical solution, further, the gas preheating layer is a tube type heat exchanger.
In the above technical solution, further, the gas heating layer is a tubular heat exchanger.
The utility model has the advantages that:
the utility model provides a catalyst operation later stage reaction bed temperature too high, the side reaction increases, and absorption tower absorption effect variation scheduling problem to reduce reactor later stage catalyst reaction temperature, catalyst life increase service time more than a week.
Drawings
FIG. 1 shows a methanol vaporizer for iron-molybdenum formaldehyde production according to the present invention;
in the figure: 1. the top sprays the layer, 2, the gas preheating layer, 3, the middle part sprays the layer, 4, the gas zone of heating, 5, manhole I, 6, gas inlet, 7, wash the circulation hole, 8, manhole II, 9, gas outlet.
Detailed Description
The following examples are presented to enable one of ordinary skill in the art to more fully understand the present invention, but are not intended to limit the invention in any manner.
A methanol vaporizer for formaldehyde production by an iron-molybdenum method comprises a shell, wherein a gas heating layer 4, a middle spraying layer 3, a gas preheating layer 2 and a top spraying layer 1 are sequentially arranged in the shell from bottom to top; the middle spraying layer 3 and the top spraying layer 1 are both provided with atomizing nozzles.
A plurality of atomizing nozzles are uniformly distributed along the length direction of the top spraying layer 1 and the middle spraying layer 3.
The top spray layer 1 was provided with 10 atomizing nozzles.
The middle part sprays layer 3 and is provided with 4 atomizing nozzles.
The gas preheating layer 2 is a tube type heat exchanger.
The gas heating layer 4 is a tube type heat exchanger.
The process gas from the circulating fan enters the methanol vaporizer through the gas inlet 6, the methanol is sprayed out to be in a fog shape through the top spraying layer 1 and the middle spraying layer 3 and is mixed with the process gas, and the process gas is heated through the gas preheating layer 2 and then enters the subsequent process after being heated through the gas heating layer 4.
The above embodiments are merely preferred examples of the present invention, and are not intended to limit the embodiments. The protection scope of the present invention should be subject to the scope defined by the claims. Other variations and modifications may be made to the above-described embodiments, and equivalents may be substituted for those skilled in the art. Obvious changes or modifications can be made without departing from the scope of the invention.
Claims (6)
1. A methanol vaporizer for formaldehyde production by an iron-molybdenum method is characterized by comprising a shell, wherein a gas heating layer, a middle spraying layer, a gas preheating layer and a top spraying layer are sequentially arranged in the shell from bottom to top;
the middle part sprays the layer and the top sprays the layer and all is provided with atomizing nozzle.
2. The methanol vaporizer for formaldehyde production by an iron-molybdenum process according to claim 1, wherein the plurality of atomizing nozzles are uniformly arranged along the length direction of the top spray layer and the middle spray layer.
3. The methanol vaporizer for iron-molybdenum process formaldehyde production according to claim 1, wherein the top spray layer is provided with 10 atomizing nozzles.
4. The methanol vaporizer for iron-molybdenum process formaldehyde production according to claim 1, wherein the middle spray layer is provided with 4 atomizing nozzles.
5. The methanol vaporizer for iron-molybdenum formaldehyde production according to claim 1, wherein the gas preheating layer is a tube type heat exchanger.
6. The methanol vaporizer for iron-molybdenum formaldehyde production according to claim 1, wherein the gas heating layer is a tube type heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222124860.9U CN218741873U (en) | 2022-08-12 | 2022-08-12 | Methanol vaporizer for producing formaldehyde by iron-molybdenum method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222124860.9U CN218741873U (en) | 2022-08-12 | 2022-08-12 | Methanol vaporizer for producing formaldehyde by iron-molybdenum method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218741873U true CN218741873U (en) | 2023-03-28 |
Family
ID=85690328
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222124860.9U Active CN218741873U (en) | 2022-08-12 | 2022-08-12 | Methanol vaporizer for producing formaldehyde by iron-molybdenum method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218741873U (en) |
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2022
- 2022-08-12 CN CN202222124860.9U patent/CN218741873U/en active Active
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