CN203430582U - Methanal process device for comprehensive recovery and utilization of byproduct steam heat energy - Google Patents
Methanal process device for comprehensive recovery and utilization of byproduct steam heat energy Download PDFInfo
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- CN203430582U CN203430582U CN201320510912.4U CN201320510912U CN203430582U CN 203430582 U CN203430582 U CN 203430582U CN 201320510912 U CN201320510912 U CN 201320510912U CN 203430582 U CN203430582 U CN 203430582U
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- Prior art keywords
- steam
- oxidator
- heat
- formaldehyde
- byproduct
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- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 title claims abstract description 124
- 239000006227 byproduct Substances 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 title abstract description 7
- 235000019256 formaldehyde Nutrition 0.000 title abstract 5
- 238000011084 recovery Methods 0.000 title abstract 3
- 229920006395 saturated elastomer Polymers 0.000 claims abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 14
- 238000009833 condensation Methods 0.000 claims description 4
- 230000005494 condensation Effects 0.000 claims description 4
- 230000003020 moisturizing effect Effects 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 3
- 230000005611 electricity Effects 0.000 abstract description 5
- 239000002699 waste material Substances 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 description 9
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 238000010327 methods by industry Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000000629 steam reforming Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Abstract
The utility model discloses a methanal process device for comprehensive recovery and utilization of byproduct steam heat energy. The methanal process device comprises a tail gas processor and an oxygenizer, wherein the tail gas processor produces steam of 0.8MPa, the oxygenizer produces steam of 0.4MPa, and the heat enthalpy difference between different kinds of saturated steam with different pressures can be effectively recovered by means of a steam turbine set. According to the methanal process device for comprehensive recovery and utilization of the byproduct steam heat energy, low-grade steam is converted into high-grade electricity by fully using the heat enthalpy difference between the different kinds of saturated steam, produced by the methanal device, with the different pressures, the utilization rate of energy is improved, and optimizing application of the energy is achieved; byproduct steam with a low pressure is fully used, and steam waste can be effectively reduced.
Description
Technical field
The utility model belongs to Chemical Manufacture Processes and apparatus technical field, relates generally to each link byproduct steam heat energy comprehensive recycling device in formaldehyde production technology.
Background technique
Domestic current Formaldehyde Production enterprise has surpassed 5000, and aggregated capacity is about 3,200 ten thousand tons.Because formaldehyde process engineering is updated, formaldehyde develops into " aerogenesis type " by former " consumption vapour type ", be that formaldehyde plant all can be realized byproduct steam, but formaldehyde is still " consumable electrode type " device at present, electricity consumption unit consumption 25 ~ 30KW/h/ 37% formaldehyde products per ton, and the device energy dissipation situation of formaldehyde is very serious.Wherein formaldehyde plant steams a little mainly by two, and one is the thermogenetic 0.4MPa steam of reaction that utilizes oxidator, and the 2nd, utilize the controlled steam of pressure of heat generation of the exhaust combustion of formaldehyde plant, general normal production 0.8MPa.In formaldehyde production, also need to supplement steam as reaction feed in oxidation reactor, in this step, requiring the steam entering in reactor is 0.15MPa simultaneously.At present Formaldehyde Production enterprise normally by the steam pressure-reducing of the 0.4MPa steam producing in formolite reaction device or 0.8MPa to sending into the reactor steam of preparing burden after 0.15MPa, cause high pressure steam energy directly to waste.When steam is decompressed to 0.15MPa by 0.4MPa, the heat content 2748.11kJ/kg of 0.4MPa saturated vapour, and 0.15MPa saturated vapour heat content is 2716.5 kJ/kg, heat energy is wasted in a large number.Simultaneously because vapor pressure is lower, can value lower, so byproduct steam is removed outside domestic water heating substantially, be all that direct emptying is processed, not only noise is large, and energy dissipation is very serious, does not meet the expectation that national energy-saving reduces discharging.
Model utility content
Model utility object: for problem and the defect of above-mentioned existence, the utility model provides a kind of formaldehyde tooling of byproduct steam heat energy comprehensive reutilization, can effectively reclaim the heat energy of formaldehyde plant byproduct steam, and this heat energy is converted into the electric energy of formaldehyde self-demand, and this part electric energy meets formaldehyde plant self consumption demand.
Technological scheme: for realizing above-mentioned model utility object, the utility model is by the following technical solutions: a kind of formaldehyde tooling of byproduct steam heat energy comprehensive reutilization, described formaldehyde plant comprises exhaust gas treating device and oxidator, the steam of described exhaust gas treating device by-product 0.5～0.8MPa, the steam of described oxidator by-product 0.3～0.45MPa, described recycle device comprises tail gas drum, oxidator drum, steam turbine unit and condensed water recovering system, and described steam turbine unit comprises and connects successively a level steam turbine, two level steam turbines and heat content heat-exchanger rig; After described tail gas drum is connected with the steam (vapor) outlet of exhaust gas treating device, by pipeline, be communicated with a level steam turbine entrance; After described oxidator drum is connected with the steam (vapor) outlet of oxidator, by pipeline, be communicated with two level steam turbine entrances; Described two level steam turbine outlet ports are provided with the steam branch pipe of the saturated vapour of circulation 0.10～0.20MPa, and are communicated with oxidator; After described heat content heat-exchanger rig is connected with condensed water recovering system, by pipeline, is connected and carries out moisturizing with oxidator drum with tail gas drum respectively.
As preferably, described condensed water recovering system is vapor-liquid separator.
As preferably, described heat content heat-exchanger rig is condensation heat exchange device.
As preferably, described steam turbine unit outside electric power network.
Beneficial effect: compared with prior art, the utlity model has following advantage: it is poor that the utility model is intended to make full use of the enthalpy of different pressures grade steam of formaldehyde plant by-product, by low-grade steam-reforming, it is high-quality electric energy, promote the utilization ratio of energy, belonged to the optimization application of energy; Make full use of the byproduct steam that pressure is lower, can effectively reduce the waste of steam, realized the object without the energy-saving and emission-reduction of externally fed air feed.
Accompanying drawing explanation
Fig. 1 is the structural representation of the formaldehyde tooling of byproduct steam heat energy comprehensive reutilization described in the utility model.
Wherein, tail gas drum 1, oxidator drum 2, steam turbine unit 3, a level steam turbine 31, two level steam turbines 32, heat content heat-exchanger rig 33, condensed water recovering system 4, arm 5.
Embodiment
Below in conjunction with the drawings and specific embodiments, further illustrate the utility model, should understand these embodiments and only for the utility model is described, be not used in restriction scope of the present utility model, after having read the utility model, those skilled in the art all fall within the application's claims limited range to the modification of the various equivalent form of values of the present utility model.
As shown in Figure 1, the formaldehyde tooling of the utility model byproduct steam heat energy comprehensive reutilization, tail gas drum and oxidator drum receive respectively exhaust gas treating device and the 0.8MPa of oxidator generation and the byproduct steam of 0.4MPa in formaldehyde production technology.After wherein the byproduct steam of 0.8MPa enters a level steam turbine in steam turbine unit and generates electricity, then enter two level steam turbines and further generate electricity.Now the byproduct steam of 0.4MPa enters as a supplement by two level steam turbine entrances, continue generating, finally by heat content heat-exchanger rig, forming steam condensate flows out from the outlet of steam turbine unit, and pass through condensed water recovering system, circulation is carried out moisturizing to tail gas drum and oxidator drum, avoids producing in addition softened water and carries out moisturizing.Meanwhile, two level steam turbine outlet ports arrange saturated vapour that arm extracts a part of 0.15MPa out as formaldehyde production technology in the batching steam of oxidator use, when further effectively utilizing heat energy, reduce discharge, avoid again producing softened water steam as batching steam simultaneously.
Therefore due to formaldehyde plant byproduct steam, the generating of substantially all condensing, utilizes the generating of all condensing of this equipment, the steam of formaldehyde plant, and generated energy can meet the normal production requirement of formaldehyde plant.This model utility has solved a large amount of wastes without the outer row of the formaldehyde producer steam of steam demand, and the call ，Bing Wei enterprise that simultaneously utilizes this device can active response national energy-saving to reduce discharging creates very significantly economic benefits.Technique of the present utility model mainly solves the steam utilization problem that adds formaldehyde plant, except formaldehyde plant itself needs steam, the different size steam that formaldehyde plant exhaust gas processing device and oxidator treatment device produce, outside personal batching steam and heating steam, the generating of all condensing of other steam.The solidifying gas formula generating of formaldehyde plant, can accomplish that the enough formaldehyde plants of generated energy self are used outer confession.Fact proved: 120,000 tons of formaldehyde plants, byproduct steam 5.5t, after this screw rod generating, year generating 3,960,000 degree, and outlet steam is water of condensation, after gas-liquid separator, saturated vapour water of condensation is as the water supply of drum.And the electricity being produced by low-pressure saturated steam, is connected with bus by grid-connected contact cabinet in switchgear room, thereby realize generating, be incorporated into the power networks with system.
Claims (4)
1. the formaldehyde tooling of a byproduct steam heat energy comprehensive reutilization, comprise exhaust gas treating device and oxidator, the steam of described exhaust gas treating device by-product 0.5～0.8MPa, the steam of described oxidator by-product 0.3～0.45MPa, it is characterized in that: described recycle device comprises tail gas drum, oxidator drum, steam turbine unit and condensed water recovering system, described steam turbine unit comprises and connects successively a level steam turbine, two level steam turbines and heat content heat-exchanger rig; After described tail gas drum is connected with the steam (vapor) outlet of exhaust gas treating device, by pipeline, be communicated with a level steam turbine entrance; After described oxidator drum is connected with the steam (vapor) outlet of oxidator, by pipeline, be communicated with two level steam turbine entrances; Described two level steam turbine outlet ports are provided with the steam branch pipe of the saturated vapour of circulation 0.10～0.20MPa, and are communicated with oxidator; After described heat content heat-exchanger rig is connected with condensed water recovering system, by pipeline, is connected and carries out moisturizing with oxidator drum with tail gas drum respectively.
2. the formaldehyde tooling of byproduct steam heat energy comprehensive reutilization according to claim 1, is characterized in that: described condensed water recovering system is vapor-liquid separator.
3. the formaldehyde tooling of byproduct steam heat energy comprehensive reutilization according to claim 2, is characterized in that: described heat content heat-exchanger rig is condensation heat exchange device.
4. the formaldehyde tooling of byproduct steam heat energy comprehensive reutilization according to claim 3, is characterized in that: described steam turbine unit outside electric power network.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320510912.4U CN203430582U (en) | 2013-08-21 | 2013-08-21 | Methanal process device for comprehensive recovery and utilization of byproduct steam heat energy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320510912.4U CN203430582U (en) | 2013-08-21 | 2013-08-21 | Methanal process device for comprehensive recovery and utilization of byproduct steam heat energy |
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| Publication Number | Publication Date |
|---|---|
| CN203430582U true CN203430582U (en) | 2014-02-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320510912.4U Expired - Fee Related CN203430582U (en) | 2013-08-21 | 2013-08-21 | Methanal process device for comprehensive recovery and utilization of byproduct steam heat energy |
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| CN (1) | CN203430582U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103470322A (en) * | 2013-08-21 | 2013-12-25 | 江苏凯茂石化科技有限公司 | Formaldehyde process device capable of comprehensively recycling heat energy of byproduct steam |
-
2013
- 2013-08-21 CN CN201320510912.4U patent/CN203430582U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103470322A (en) * | 2013-08-21 | 2013-12-25 | 江苏凯茂石化科技有限公司 | Formaldehyde process device capable of comprehensively recycling heat energy of byproduct steam |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent of invention or patent application | ||
| C56 | Change in the name or address of the patentee | ||
| CB03 | Change of inventor or designer information |
Inventor after: Xiang Jiayong Inventor after: Yang Keqi Inventor after: Xu Yin Inventor before: Xiang Jiayong Inventor before: Yang Keqi Inventor before: Xu Yin |
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| CP02 | Change in the address of a patent holder |
Address after: 214215 Jiangsu province Binhu District of Wuxi City Xiu Xi Lu Henghua Technology Park No. 58 Building No. 50 Patentee after: JIANGSU KAIMAO CHEMICAL TECHNOLOGY Co.,Ltd. Address before: Xuelang Binhu District 214000 Jiangsu province Wuxi city received Ge Dai community Patentee before: JIANGSU KAIMAO CHEMICAL TECHNOLOGY Co.,Ltd. |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Formaldehyde process device capable of comprehensively recycling heat energy of byproduct steam Effective date of registration: 20141016 Granted publication date: 20140212 Pledgee: Jiangsu Wujin credit re Company limited by guarantee Pledgor: JIANGSU KAIMAO CHEMICAL TECHNOLOGY Co.,Ltd. Registration number: 2014990000857 |
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| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20151110 Granted publication date: 20140212 Pledgee: Jiangsu Wujin credit re Company limited by guarantee Pledgor: JIANGSU KAIMAO CHEMICAL TECHNOLOGY Co.,Ltd. Registration number: 2014990000857 |
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| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Formaldehyde process device capable of comprehensively recycling heat energy of byproduct steam Effective date of registration: 20151126 Granted publication date: 20140212 Pledgee: Jiangsu Wujin credit re Company limited by guarantee Pledgor: JIANGSU KAIMAO CHEMICAL TECHNOLOGY Co.,Ltd. Registration number: 2015990001050 |
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| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20170608 Granted publication date: 20140212 Pledgee: Jiangsu Wujin credit Company limited by guarantee Pledgor: JIANGSU KAIMAO CHEMICAL TECHNOLOGY Co.,Ltd. Registration number: 2015990001050 |
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| PM01 | Change of the registration of the contract for pledge of patent right | ||
| PM01 | Change of the registration of the contract for pledge of patent right |
Change date: 20170608 Registration number: 2015990001050 Pledgee after: Jiangsu Wujin credit Company limited by guarantee Pledgee before: Jiangsu Wujin credit re Company limited by guarantee |
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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: 20140212 Termination date: 20210821 |