CN220230204U - Sodium formate thinner waste heat recovery device - Google Patents
Sodium formate thinner waste heat recovery device Download PDFInfo
- Publication number
- CN220230204U CN220230204U CN202321830878.9U CN202321830878U CN220230204U CN 220230204 U CN220230204 U CN 220230204U CN 202321830878 U CN202321830878 U CN 202321830878U CN 220230204 U CN220230204 U CN 220230204U
- Authority
- CN
- China
- Prior art keywords
- waste heat
- heat exchanger
- sodium formate
- material waste
- thin material
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000002918 waste heat Substances 0.000 title claims abstract description 48
- HLBBKKJFGFRGMU-UHFFFAOYSA-M sodium formate Chemical compound [Na+].[O-]C=O HLBBKKJFGFRGMU-UHFFFAOYSA-M 0.000 title claims abstract description 21
- 235000019254 sodium formate Nutrition 0.000 title claims abstract description 21
- 239000004280 Sodium formate Substances 0.000 title claims abstract description 20
- 238000011084 recovery Methods 0.000 title claims abstract description 11
- 239000000463 material Substances 0.000 claims abstract description 49
- 239000007788 liquid Substances 0.000 claims abstract description 19
- 238000003786 synthesis reaction Methods 0.000 claims abstract description 14
- 238000010438 heat treatment Methods 0.000 claims abstract description 6
- 230000015572 biosynthetic process Effects 0.000 claims description 9
- 239000002912 waste gas Substances 0.000 claims description 9
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 5
- 229910002091 carbon monoxide Inorganic materials 0.000 claims description 5
- 239000002826 coolant Substances 0.000 claims 1
- 238000006243 chemical reaction Methods 0.000 abstract description 8
- 239000003513 alkali Substances 0.000 abstract description 4
- 239000007789 gas Substances 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 9
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 description 1
- 235000019253 formic acid Nutrition 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- ZNCPFRVNHGOPAG-UHFFFAOYSA-L sodium oxalate Chemical compound [Na+].[Na+].[O-]C(=O)C([O-])=O ZNCPFRVNHGOPAG-UHFFFAOYSA-L 0.000 description 1
- 229940039790 sodium oxalate Drugs 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000001308 synthesis method Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The utility model provides a sodium formate thinner waste heat recovery device, which comprises: the system comprises a lean exhaust gas condenser, a synthetic liquid flash tank and a lean waste heat utilization heat exchanger, wherein the lean waste heat utilization heat exchanger is communicated with the lean exhaust gas condenser and the synthetic liquid flash tank, and the lean waste heat utilization heat exchanger is communicated with the synthetic reactor. The utility model has the beneficial effects that: the waste heat in the thin materials generated by the synthesis reaction of the thin materials of the sodium formate is recovered, and the production device fills the blank of the comprehensive utilization of the thin materials in the sodium formate industry. After implementation, the heat generated by the sodium formate reaction thinner is utilized to preheat the synthesized alkali liquor, and the primary steam used for heating by the preheater can be completely replaced.
Description
Technical Field
The utility model relates to the field of chemical devices, in particular to a sodium formate thinner waste heat recovery device.
Background
Sodium formate, HCOONa, is a white or pale yellow crystalline solid. Slightly formic acid smell. Is easily soluble in water and glycerol, and slightly soluble in ethanol. Melting point 253 ℃ (anhydrate), nontoxic. And is decomposed into hydrogen and sodium oxalate under intense heat.
The traditional sodium formate synthesis method is that carbon monoxide and sodium hydroxide are subjected to carbonyl reaction under the pressure of 1.5-2.2Mpa and the temperature of 180-200 ℃. The lye entering the core reactor passes through a vent gas condenser and a primary preheater, the primary preheater fails to reach the inlet temperature required by the synthesis reactor, and the lye passes through a secondary preheater (heating by low-pressure steam). The liquid phase temperature of the dilute sodium formate flash tank in the post-synthesis reaction process reaches 135 ℃, but part of energy is not effectively utilized, so that heat energy is wasted.
Therefore, there is a need to design a new sodium formate thinner waste heat recovery device to overcome the above problems.
Disclosure of Invention
Aiming at the problems in the prior art, the utility model researches and improves the prior process flow, and the device system waste heat is recycled to the maximum extent on the premise of ensuring high conversion rate of the oxo-synthesis reaction of the core process by implementing the patent. The utility model provides a sodium formate thin material waste heat recovery device which comprises a thin material waste gas condenser, a synthetic liquid flash tank and a thin material waste heat utilization heat exchanger, wherein the thin material waste heat utilization heat exchanger is communicated with the thin material waste gas condenser and the synthetic liquid flash tank, a heat medium from the synthetic liquid flash tank flows from top to bottom in the shell side of the thin material waste heat utilization heat exchanger, a cold medium from the thin material waste gas condenser flows from bottom to top in the shell side of the thin material waste heat utilization heat exchanger, an outlet pipeline of the cold medium of the thin material waste heat utilization heat exchanger is communicated with a synthesis reactor, and an outlet pipeline of the heat medium of the thin material waste heat utilization heat exchanger is communicated with a storage tank; the thin material exhaust gas condenser is provided with a short-circuit pipeline communicated with the synthesis reactor, and the synthetic liquid flash tank is provided with a short-circuit pipeline communicated with the storage tank.
Further, the hot medium inlet pipeline and the cold medium inlet pipeline of the thin material waste heat utilization heat exchanger are both provided with inlet valves, and the hot medium outlet pipeline and the cold medium outlet pipeline of the thin material waste heat utilization heat exchanger are both provided with outlet valves.
Further, the bypass pipelines are provided with bypass valves.
Further, a secondary preheater is arranged between the thin material waste heat utilization heat exchanger and the synthesis reactor, and a carbon monoxide inlet pipeline is arranged on the secondary preheater.
The utility model has the beneficial effects that:
(1) The utility model recovers the waste heat in the thin materials generated by the synthesis reaction of the thin materials of sodium formate, and the production device fills the blank of the comprehensive utilization of the thin materials in the sodium formate industry. After implementation, the heat generated by the sodium formate reaction thinner is utilized to preheat the synthesized alkali liquor, and the primary steam used for heating by the preheater can be completely replaced.
(2) The cold and hot medium in the thin material waste heat utilization heat exchanger adopts countercurrent heat exchange, so that the heat exchange effect is improved. The material fully utilizes the reaction heat to exchange heat for the raw material liquid, so that the utilization efficiency of a heating medium is greatly improved.
Drawings
In order that the utility model may be more readily understood, a more particular description of the utility model will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings, in which
Fig. 1 is a schematic plan view of the present utility model.
The reference numerals in the drawings are:
the system comprises a 1-lean exhaust condenser, a 2-synthetic liquid flash tank, a 3-lean waste heat utilization heat exchanger, a 4-synthesis reactor, a 5-inlet valve, a 6-outlet valve, a 7-close valve, an 8-secondary preheater and a 9-storage tank.
Detailed Description
The utility model will be further described with reference to the drawings and examples for the purpose of illustrating the features of the utility model.
Examples:
referring to fig. 1, an embodiment of the utility model provides a sodium formate thin material waste heat recovery device, which comprises a thin material waste gas condenser 1, a synthetic liquid flash tank 2 and a thin material waste heat utilization heat exchanger 3.
The thin material waste heat utilization heat exchanger 3 is communicated with the thin material waste gas condenser 1 and the synthetic liquid flash tank 2, the waste liquid of the heat medium, namely the synthetic liquid flash tank, enters the thin material waste heat utilization heat exchanger 3 through a pipeline, the circulation direction of the heat medium from the synthetic liquid flash tank 2 in the shell pass of the thin material waste heat utilization heat exchanger 3 is from top to bottom, the cold medium, namely the lye passing through the thin material waste gas condenser 1 enters the thin material waste heat utilization heat exchanger 3 through a pipeline, the circulation direction of the cold medium from the thin material waste gas condenser 1 in the shell pass of the thin material waste heat utilization heat exchanger 3 is from bottom to top, namely countercurrent heat exchange is adopted between the cold medium, and the heat exchange effect is improved. The material fully utilizes the reaction heat to exchange heat for the raw material liquid, greatly reduces the consumption of a heating medium by the thin material waste heat utilization heat exchanger, and the heated temperature can reach 110-115 ℃ through the heated alkali liquid, so that the temperature required by the reaction can be met, and the material can directly enter the synthesis reactor 4 for the reaction through a pipeline.
Inlet valves 5 are respectively arranged on a hot medium inlet pipeline and a cold medium inlet pipeline of the thin material waste heat utilization heat exchanger 3, and outlet valves 6 are respectively arranged on a hot medium outlet pipeline and a cold medium outlet pipeline of the thin material waste heat utilization heat exchanger. The inlet and outlet valves are arranged to control the running state of the system when needed.
And a close-up pipeline is arranged between the lean exhaust condenser 1 and the synthetic liquid flash tank 2 and the lean waste heat utilization heat exchanger 3, and a close-up valve 7 is arranged on the close-up pipeline. The heat exchanger is convenient to throw in and out, the heat exchange effect is monitored and compared, and when the thin material waste heat utilization heat exchanger 3 fails, the continuous operation of the machine can be maintained.
A secondary preheater 8 is arranged between the thin material waste heat utilization heat exchanger 3 and the synthesis reactor 4, a carbon monoxide inlet pipeline is arranged on the secondary preheater 8, and heated alkali liquor and carbon monoxide are mixed in the secondary preheater 8 and then enter the synthesis reactor 4.
The outlet pipeline and the close-up pipeline of the heat medium of the thin material waste heat utilization heat exchanger 3 are communicated with the storage tank 9. The temperature of the cooled heat medium is reduced to below 125 ℃ and enters a storage tank 9 for storage.
The above examples and drawings are only for illustrating the technical aspects of the present utility model, but not for limiting the same, and it should be understood by those skilled in the art that the present utility model is described in detail with reference to the preferred embodiments, and that the changes, modifications, additions or substitutions made by those skilled in the art without departing from the spirit of the present utility model and the scope of the claims of the present utility model. Other related art structures not disclosed in detail in the present utility model are prior art in the field.
Claims (4)
1. The sodium formate thin material waste heat recovery device is characterized by comprising a thin material waste gas condenser (1), a synthetic liquid flash tank (2) and a thin material waste heat utilization heat exchanger (3), wherein the thin material waste heat utilization heat exchanger (3) is communicated with the thin material waste gas condenser (1) and the synthetic liquid flash tank (2), an outlet pipeline of a cooling medium of the thin material waste heat utilization heat exchanger (3) is communicated with a synthetic reactor (4), and an outlet pipeline of a heating medium of the thin material waste heat utilization heat exchanger (3) is communicated with a storage tank (9); the lean exhaust condenser (1) is provided with a short-circuit pipeline communicated with the synthesis reactor (4), and the synthetic liquid flash tank (2) is provided with a short-circuit pipeline communicated with the storage tank (9).
2. The sodium formate thin stock waste heat recovery device according to claim 1, wherein the heat medium inlet pipeline and the cold medium inlet pipeline of the thin stock waste heat utilization heat exchanger (3) are both provided with inlet valves (5), and the heat medium outlet pipeline and the cold medium outlet pipeline of the thin stock waste heat utilization heat exchanger (3) are both provided with outlet valves (6).
3. The sodium formate thin-material waste heat recovery device according to claim 2, wherein the short-circuit pipelines are provided with short-circuit valves (7).
4. A sodium formate thin stock waste heat recovery device as claimed in claim 3, characterized in that a secondary preheater (8) is arranged between the thin stock waste heat utilization heat exchanger (3) and the synthesis reactor (4), and a carbon monoxide inlet pipeline is arranged on the secondary preheater (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321830878.9U CN220230204U (en) | 2023-07-13 | 2023-07-13 | Sodium formate thinner waste heat recovery device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321830878.9U CN220230204U (en) | 2023-07-13 | 2023-07-13 | Sodium formate thinner waste heat recovery device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220230204U true CN220230204U (en) | 2023-12-22 |
Family
ID=89180416
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321830878.9U Active CN220230204U (en) | 2023-07-13 | 2023-07-13 | Sodium formate thinner waste heat recovery device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220230204U (en) |
-
2023
- 2023-07-13 CN CN202321830878.9U patent/CN220230204U/en active Active
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