CN203620617U - Energy-saving type pre-heating improvement device for carbonate solution circulating system - Google Patents
Energy-saving type pre-heating improvement device for carbonate solution circulating system Download PDFInfo
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- CN203620617U CN203620617U CN201420107490.0U CN201420107490U CN203620617U CN 203620617 U CN203620617 U CN 203620617U CN 201420107490 U CN201420107490 U CN 201420107490U CN 203620617 U CN203620617 U CN 203620617U
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- Prior art keywords
- carbonate
- carbonate solution
- heat exchanger
- energy
- contact tower
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- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 title claims abstract description 119
- 238000010438 heat treatment Methods 0.000 title abstract 5
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 abstract description 13
- 229910002092 carbon dioxide Inorganic materials 0.000 abstract description 7
- 239000001569 carbon dioxide Substances 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000004134 energy conservation Methods 0.000 abstract description 4
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 230000008929 regeneration Effects 0.000 abstract 3
- 238000011069 regeneration method Methods 0.000 abstract 3
- 239000005977 Ethylene Substances 0.000 abstract 1
- 239000012847 fine chemical Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 description 4
- 230000001276 controlling effect Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction 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
- 239000002994 raw material Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
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Abstract
The utility model provides an energy-saving type pre-heating improvement device for a carbonate solution circulating system, belonging to the technical field of fine chemical industry production. The energy-saving type pre-heating improvement device comprises a carbonate contact tower, a heat exchanger, a carbonate solution pump and a carbonate regeneration tower which are connected by a pipeline, wherein an inlet of the carbonate solution pump is connected with the bottom of the carbonate regeneration tower; an outlet of the carbonate solution pump is connected with the carbonate contact tower; the bottom outlet of the carbonate contact tower is connected with the carbonate regeneration tower; a carbonate flow path of the device comprises a lean carbonate solution flow path and a carbonate-enriched solution flow path. The energy-saving type pre-heating improvement device is provided with the heat exchanger, a lean carbonate solution enters into shell pass and a carbonate-enriched solution enters into tube pass so that heat exchange is realized; a heat exchanger bypath pipeline is additionally arranged and a temperature adjusting control valve is mounted on the bypath pipeline, so as to control the lean carbonate solution to absorb carbon dioxide at the optimal temperature; therefore, the energy conservation is realized and the concentration of the carbon dioxide at the inlet of a reactor is also reduced; finally, the consumption of producing ethylene is reduced; the energy-saving type pre-heating improvement device for the carbonate solution circulating system is simple in structure, reasonable in design and good in energy-saving effect, and is applicable to popularization and application.
Description
Technical field
The utility model belongs to fine chemistry industry production equipment technical field, is specifically related to a kind of energy-conservation, energy-saving preheating modifying device of the carbonate solution circulatory system of reducing the environmental protection of production material consumption, energy consumption.
Background technology
In at present domestic and international ethylene oxide device, the carbonate solution circulatory system is all comparatively simple flow process, in flow process, rich or poor carbonate solution does not carry out heat exchange, carbonate solution from contact tower directly enters regenerator by pipeline, enters into contact tower from the poor carbonate solution at the bottom of regenerator via carbonate solution pump.According to such technological process circulation, carbonate can not get the preheating that heats up, the poor carbonate absorbing carbon dioxide of cannot lowering the temperature.Therefore regenerator steam consumption is higher, and poor carbonate solution does not reach the best solution temperature of absorbing carbon dioxide yet simultaneously, and then affects reactor inlet gas concentration lwevel, causes the consumption of raw materials for production ethene to increase.
Utility model content
For the problems referred to above that exist in existing technique, the purpose of this utility model is that design provides a kind of energy-conservation, energy-saving preheating modifying device of the carbonate solution circulatory system of reducing the environmental protection of production material consumption, energy consumption.
The energy-saving preheating modifying device of the described carbonate solution circulatory system, comprise pipeline connects successively carbonate contact tower, heat exchanger, carbonate solution pump and carbonate regenerator, it is characterized in that described carbonate solution pump intake is connected with carbonate regenerator bottom, carbonate solution pump discharge is connected with carbonate contact tower by heat exchanger shell pass, carbonate contact tower outlet at bottom is connected with carbonate regenerator through heat exchanger tube pass, and the carbonate stream of this device comprises poor carbonate solution stream and carbonate solution stream.
The energy-saving preheating modifying device of the described carbonate solution circulatory system, first-hand movable valve is set between carbonate solution pump and heat exchanger shell pass described in its feature, between heat exchanger shell pass and carbonate contact tower, second-hand's movable valve and temperature gauge are set, the 3rd manually-operated gate is set between described carbonate contact tower and heat exchanger tube pass, the 4th manually-operated gate is set between heat exchanger tube pass and carbonate regenerator.
The energy-saving preheating modifying device of the described carbonate solution circulatory system, is characterized in that, between the inlet pipeline of heat exchanger tube pass and outlet conduit, heat exchanger by-pass line is set, and on heat exchanger by-pass line set temperature control and regulation valve.
The energy-saving preheating modifying device of the described carbonate solution circulatory system, it is characterized in that set temperature controller on described temperature gauge, temperature controller is also connected with temperature control and regulation valve, described temperature controller is connected with outside DCS control system signal, carrys out the temperature of poor carbonate solution on this pipeline by controlling the switch of temperature control and regulation valve.
The energy-saving preheating modifying device of the above-mentioned carbonate solution circulatory system, comprise pipeline connects successively carbonate contact tower, heat exchanger, carbonate solution pump and carbonate regenerator, carbonate solution pump intake is connected with carbonate regenerator bottom, carbonate solution pump discharge is connected with carbonate contact tower by heat exchanger shell pass, carbonate contact tower outlet at bottom is connected with carbonate regenerator through heat exchanger tube pass, and the carbonate stream of this device comprises poor carbonate solution stream and carbonate solution stream.The utility model is by adopting above-mentioned technology, pass through heat exchanger, poor carbonate solution is walked shell side, carbonate solution is walked tube side, realize exchange heat, set up heat exchanger by-pass line and temperature that temperature adjusting control valve controls poor carbonate solution is installed on by-pass line in best carbon dioxide absorption temperature, carbon dioxide eliminating optimization, realize the energy-conservation while of the carbonate circulatory system and also reduced reactor inlet gas concentration lwevel, finally reduce the consumption of producing ethene, it is simple in structure, reasonable in design, easy to operate and good energy-conserving effect, be suitable for applying.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure: 1-heat exchanger, 2-temperature gauge, 3-temperature control and regulation valve, 4-second-hand's movable valve, the first-hand movable valve of 5-, 6-the 4th manually-operated gate, 7-the 3rd manually-operated gate, 8-carbonate contact tower, 9-carbonate regenerator, 10-carbonate solution pump, 11-heat exchanger by-pass line, 12-temperature controller.
The specific embodiment
Further illustrate the utility model below in conjunction with Figure of description, but protection domain of the present utility model is not limited in this.
As shown in Figure 1, the energy-saving preheating modifying device of the carbonate solution circulatory system, comprise pipeline connects successively carbonate contact tower 8, heat exchanger 1, carbonate solution pump 10 and carbonate regenerator 9, described carbonate solution pump 10 entrances are connected with carbonate regenerator 9 bottoms, its outlet is connected with carbonate contact tower 8 by heat exchanger 1 shell side, and carbonate contact tower 8 outlet at bottoms are connected with carbonate regenerator 9 through heat exchanger 1 tube side.
As shown in the figure, the carbonate stream of this device comprises poor carbonate solution stream and carbonate stream, on poor carbonate stream pipeline, between carbonate solution pump 10 and heat exchanger 1 shell side, first-hand movable valve 5 is set, second-hand's movable valve 4 and temperature gauge 2 are set between heat exchanger 1 shell side and carbonate contact tower 8; On carbonate stream pipeline, between carbonate contact tower 8 and heat exchanger 1 tube side, the 3rd manually-operated gate 7 is set, the 4th manually-operated gate 6 is set between heat exchanger 1 tube side and carbonate regenerator 9; Carbonate contact tower 8 outlet at bottoms, through heat exchanger 1 tube side, arrange heat exchanger by-pass line 11 between heat exchanger 1 tube side inlet pipeline and export pipeline, and set temperature controls to adjust valve 3 on this heat exchanger by-pass line 11; Set temperature controller 12 on temperature gauge 2, temperature controller 12 is connected with temperature control and regulation valve 3 and outside DCS control system signal, give outside DCS control system by the temperature feedback of measuring on temperature gauge 2, control temperature by outside DCS control system by temperature controller 12 and control to adjust the Push And Release of valve 3, thereby control the temperature of poor carbonate solution.
This device enters into the carbonate solution in carbonate contact tower 8 tube side of heat exchanger 1 through the 3rd manually-operated gate 7, then out enter into carbonate regenerator 9 through the 4th manually-operated gate 6 by heat exchanger 1 tube side, the poor carbonate solution of carbonate regenerator 9 tower reactors is driven into the shell side of heat exchanger 1 through first-hand movable valve 5 by carbonate solution pump 10, out get back to carbonate contact tower 8 through second-hand's movable valve 4 by heat exchanger 1 shell side again, so just formed the heat exchange circulation between poor carbonate solution, carbonate solution.In addition, for controlling the optimum temperature of the poor carbonate solution that enters into carbonate contact tower 8 absorbing carbon dioxides, the utility model arranges heat exchanger by-pass line 11 between the inlet pipeline of heat exchanger 1 and outlet conduit, and set temperature controls to adjust valve 3 and temperature controller 12 on heat exchanger by-pass line 11, control best poor carbonate solution temperature 70 ℃ of left and right by regulating bypass flow to realize.
Shown in the above and figure is only preferred embodiment of the present utility model.It should be pointed out that for the person of ordinary skill of the art, not departing under the prerequisite of the utility model principle, can also make some modification and improvement, these also should be considered as belonging to protection domain of the present utility model.
Claims (4)
1. the energy-saving preheating modifying device of the carbonate solution circulatory system, comprise the carbonate contact tower (8) that pipeline connects successively, heat exchanger (1), carbonate solution pump (10) and carbonate regenerator (9), it is characterized in that described carbonate solution pump (10) entrance is connected with carbonate regenerator (9) bottom, carbonate solution pump (10) outlet is connected with carbonate contact tower (8) by heat exchanger (1) shell side, carbonate contact tower (8) outlet at bottom is connected with carbonate regenerator (9) through heat exchanger (1) tube side, the carbonate stream of this device comprises poor carbonate solution stream and carbonate solution stream.
2. the energy-saving preheating modifying device of the carbonate solution circulatory system according to claim 1, described in its feature, between carbonate solution pump (10) and heat exchanger (1) shell side, first-hand movable valve (5) is set, second-hand's movable valve (4) and temperature gauge (2) are set between heat exchanger (1) shell side and carbonate contact tower (8), between described carbonate contact tower (8) and heat exchanger (1) tube side, the 3rd manually-operated gate (7) is set, the 4th manually-operated gate (6) is set between heat exchanger (1) tube side and carbonate regenerator (9).
3. the energy-saving preheating modifying device of the carbonate solution circulatory system according to claim 2, it is characterized in that, between the inlet pipeline of heat exchanger (1) tube side and outlet conduit, heat exchanger by-pass line (11) is set, and at the upper set temperature control and regulation valves of heat exchanger by-pass line (11) (3).
4. the energy-saving preheating modifying device of the carbonate solution circulatory system according to claim 3, is characterized in that the upper set temperature controller (12) of described temperature gauge (2), and temperature controller (12) is also connected with temperature control and regulation valves (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420107490.0U CN203620617U (en) | 2014-03-11 | 2014-03-11 | Energy-saving type pre-heating improvement device for carbonate solution circulating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420107490.0U CN203620617U (en) | 2014-03-11 | 2014-03-11 | Energy-saving type pre-heating improvement device for carbonate solution circulating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203620617U true CN203620617U (en) | 2014-06-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420107490.0U Expired - Fee Related CN203620617U (en) | 2014-03-11 | 2014-03-11 | Energy-saving type pre-heating improvement device for carbonate solution circulating system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203620617U (en) |
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2014
- 2014-03-11 CN CN201420107490.0U patent/CN203620617U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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: 20140604 |