CN202543161U - Energy-saving coal gas condensing and dehumidifying device - Google Patents
Energy-saving coal gas condensing and dehumidifying device Download PDFInfo
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- CN202543161U CN202543161U CN2012200226907U CN201220022690U CN202543161U CN 202543161 U CN202543161 U CN 202543161U CN 2012200226907 U CN2012200226907 U CN 2012200226907U CN 201220022690 U CN201220022690 U CN 201220022690U CN 202543161 U CN202543161 U CN 202543161U
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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
Abstract
The utility model belongs to the technical field of energy sources, and relates to an energy-saving coal gas condensing and dehumidifying device. The device comprises a coal gas cooling spray system (1), silk screen dehydrating equipment, a condensing water removing unit (3) and heat exchange equipment (4), wherein the coal gas cooling spray system (1) comprises a cooling tower (5), a pump (6), water treating equipment (7) and a spraying tower (8) contracting a circulating system; the silk screen dehydrating equipment comprises a silk screen dehydrator (2) and a draining valve (9); and the condensing water removing unit (3) comprises at least one cooling tower (5), the pump (6), a bromine machine (10) and a surface cooler (11) constructing a circulating system. Due to the adoption of the device, mechanical water and a part of saturated water can be removed, and energy consumption and corrosion of the equipment are lowered in comparison to an independent condensing and dehumidifying device.
Description
Technical field
The utility model belongs to energy technology field, relates to a kind of energy-saving coal air cooling and coagulates dehydrating unit.
Background technology
Contain moisture in the coal gas, in the burning and use of coal gas, moisture gasifies with the burning of coal gas, and the gasification continued is absorbed heat, and is warming up to the temperature of combustion of coal gas.Can consume lot of energy so contain moisture in the coal gas, reduce the coal gas water cut, can effectively improve caloric power of gas and gas quality.
In addition, a large amount of moisture in the coal gas, coal gas is in pipe conveying procedure, along with the continuous reduction of temperature; Wherein saturated vapor is separated out, and the water smoke in the coal gas and other impurity condense, and not only reduce calorific value; Also because cooling in course of conveying, can form the porous hydrops layer of pine and pile up at tube wall, can cause tube wall coarse like this; Pressure reduces, even stops up, and the gas pressure fluctuation.Simultaneously, water-soluble generation acidic substance of gas or acidic solution such as water-soluble hydrogen sulfide has corrosive nature to pipeline in the coal gas.
The moisture method that removes in the coal gas is a lot, comprising: absorption method, mechanical process and condensation method.Absorption method is meant utilizes solid or liquid absorbent to absorb the moisture in the coal gas, makes dewatering agent as adopting triglycol or inorganic salt, and moisture removal property is reliable, but that its shortcoming is a consumption of calorie is big, running cost is high, also will relate to the recovery and the regeneration of sorbent material.Mechanical process is to utilize the physical impacts of water droplet, effect centrifugal or mass force to realize dewatering; Main device has silk screen dehydration, the dehydration of eddy flow plate and folded sheet dehydration, and its advantage is that equipment running cost is low, and shortcoming is to remove part mechanical water in the coal gas; Dehumidification rate is low, and equipment corrosion is serious.Condensation method is to be refrigerant with ammonia or salt solution; Carry out directly or indirect heat exchange through the compression freeze cycle; Make temperature of gas be reduced to dew point, fall the moisture in the coal gas through gas-liquid separator separates again, dehumidification coal gas is seen off after heating up through heat exchanger; But facility investment is big, and current consumption is big etc.
Disclose a kind of new and effective blast furnace gas dewatering unit for one Chinese patent application 00211173.X number, what it adopted is the mode that filler dewaters and silk screen dewaters and combines, but can not remove saturation water in the coal gas; One Chinese patent application discloses energy-saving dehydrating unit No. 200820031733.1, just uses the simple dehydrating unit of dehumidification by condensation principle, does not carry out substep and dewaters, and its shortcoming is the impurity that reduces in the coal gas, and the efficient that dewaters is not high enough, and energy-saving efficiency is not high.
The mechanical process de-watering apparatus can not be removed saturation water in the existing coal gas de-watering apparatus, and it is thorough inadequately to dewater; The dehumidification solution amount that solution dehumidification device needs greatly also need be regenerated to solution; Existing condensation method is that mechanical water and saturation water remove simultaneously, and current consumption is big, not energy-conserving and environment-protective.
The utility model content
The technology of the utility model is dealt with problems and is: need adsorbent reactivation to existing absorption method; Mechanical process can't be removed the problem of saturation water; In conjunction with existing condensation method principle; Dehydrating unit is coagulated in a kind of energy-saving coal air cooling of utility model, and this device can be removed mechanical water and fractional saturation water, has reduced energy consumption and corrosion on Equipment with respect to independent dehumidification by condensation device again.
The technical solution of the utility model is:
Dehydrating unit is coagulated in a kind of energy-saving coal air cooling that the utility model provides; Comprise the coal gas cooling and spraying system, silk screen dehydration equipment, the condensation that connect successively through pipeline dewater unit and heat-exchange equipment, said coal gas cooling and spraying system comprises cooling tower, pump, water treating equipment and the spray column that constitutes the recycle system; The silk screen dehydration equipment comprises wire mesh dehydrator and water discharging valve; The condensation unit that dewaters comprises that at least one constitutes cooling tower, pump, bromine machine and the surface cooler of the recycle system.
In the coal gas cooling and spraying system, the spray water in the spray column is discharged from spray column the water behind the coal gas spray by the cooling tower cooling, gets into the cooling tower cooling once more after handling through water treating equipment, circulation successively.
The recycle system that said condensation dewaters and needs in the unit 1-10 to be made up of cooling tower, pump, bromine machine and surface cooler.The total quantity of said bromine machine is the 1-30 platform.
The utility model compared with prior art has following advantage:
Remove water law, condensation method with respect to traditional machinery, the utility model is that spraying cooling, silk screen dehydration and condensation dewatering combine.Spraying cooling is not only the reduction temperature of gas, lowers the temperature in advance for condensation dewaters, and also in temperature-fall period, removes original mechanical water in the coal gas, also removes the fractional saturation water that contains in the coal gas and removes the corrodibility compositions such as acidity that contain in the part coal gas; Also coal gas is carried out dedusting when silk screen dehydration reduces in the coal gas mechanical water, effectively reduce of obstruction and the corrosion of energy consumption and the dust of coal gas when condensation dewaters coal gas; Through the two stage dedusting that dewaters of front, the condensation dehydration is dewatering under the condition of lower energy consumption with respect to direct condensation, reaches better water removal effect.
The utility model can reduce the water cut in the coal gas effectively, removes the impurity and the dust of coal gas, can improve the calorific value of coal gas effectively, reduces to equipment with the corrosion of feed channel, has high commercial value and energy-conserving and environment-protective meaning.
Description of drawings
Fig. 1 is the coal gas dehumidification by condensation device synoptic diagram according to the utility model.
Among the figure, 1-coal gas cooling and spraying system, 2-wire mesh dehydrator, the 3-condensation unit that dewaters, 4-heat-exchange equipment; The 5-cooling tower, 6-pump, 7-water treating equipment, 8-spray column, 9-water discharging valve; 10-bromine machine, 11-surface cooler, 12-gas line, 13-spray water pipeline; The 14-condensing water conduit, 15-cooling water pipeline, 16-refrigerated water pipeline, 17-steam-pipe.
Embodiment
Below will combine accompanying drawing that the embodiment of the utility model is described.
As shown in Figure 1; In the present embodiment; Energy-saving coal air cooling is coagulated dehydrating unit and is comprised the coal gas cooling and spraying system 1, silk screen dehydration equipment, the condensation that connect successively through pipeline dewater unit 3 and heat-exchange equipment 4, and said coal gas cooling and spraying system 1 comprises cooling tower 5, pump 6, water treating equipment 7 and the spray column 8 that constitutes the recycle system; The silk screen dehydration equipment comprises wire mesh dehydrator 2 and water discharging valve 9; The condensation unit 3 that dewaters comprises that at least one constitutes cooling tower 5, pump 6, bromine machine 10 and the surface cooler 11 of the recycle system.
Pipeline comprises gas line 12, spray water pipeline 13, condensing water conduit 14, cooling water pipeline 15, refrigerated water pipeline 16 and steam-pipe 17 in this device.
Gas line is connected with the coal gas cooling and spraying system, and the coal gas cooling and spraying system is connected with the silk screen dehydration equipment, and silk screen dehydration equipment and the condensation unit that dewaters is connected, and the condensation unit that dewaters is connected with heat-exchange equipment, and heat-exchange equipment is connected with gas line.
In the coal gas cooling and spraying system, the spray water that spray column is 8 li is discharged from spray column 8 water behind the coal gas spray by cooling tower 5 coolings, gets into cooling tower 5 coolings once more, circulation successively after handling through water treating equipment 7.
The silk screen dehydration equipment not only can further remove the part mechanical water, can also carry out dedusting to coal gas, reduces the obstruction to subsequent condensation equipment.
The recycle system that said condensation dewaters and needs in the unit 3 1-10 to be made up of cooling tower 5, pump 6, bromine machine 10 and surface cooler 11.The total quantity of said bromine machine is the 1-30 platform, and a recycle system can have a bromine machine, also can be that two or three bromine machines are connected in parallel.The condensation unit that dewaters is the core that dewaters, and through the condensation cooling, removes remaining mechanical water and fractional saturation water simultaneously.
Coal gas dehumidification by condensation technology according to this device may further comprise the steps:
A, to the coal gas spray of lowering the temperature
Coal gas is sent into the coal gas cooling and spraying system through gas line 12, and in the coal gas cooling and spraying system, coal gas is through spray column 8 spraying coolings, and the part vaporous water condenses into liquid water, gets into the silk screen dehydration equipment then;
The spray water that spray column is 8 li is by cooling tower 5 coolings; Get into 8 pairs of coal gas spraying coolings of spray column, remove the portion water that contains in the coal gas simultaneously, the water behind the spray is discharged from spray column 8; Through getting into cooling tower 5 coolings, circulation successively after water treating equipment 7 processing once more.Coal gas is lowered the temperature to coal gas through supercooled water, has saturation water to separate out in the temperature-fall period, can remove the impurity in the coal gas in the spray process simultaneously.
Cooling tower refrigerative water temp is 0-40 °; Through spray column spray, 10-35 ° of gas temperature decline; Water removal is 0-40g/Nm
3
B, coal gas is carried out silk screen dehydration
The silk screen dehydration equipment further removes the part mechanical water in the coal gas, simultaneously coal gas is carried out smart dedusting, and coal gas gets into the condensation unit that dewaters then;
Wire mesh dehydrator dehydration 10-50g/Nm
3, make the mechanical water water cut of coal gas be lower than 10g/Nm
3
C, coal gas is carried out condensation dewater
Coal gas through the condensation surface cooler 11 condensations cooling in the unit that dewaters, is removed remaining mechanical water and fractional saturation water again, gets into heat-exchange equipment at last;
Through the condensation unit that dewaters, make total water cut of coal gas be lower than preset value, for example 10g/Nm
3Or 20g/Nm
3
D, carry out heat exchange and handle
Steam and flow of gas in the heat-exchange equipment are in the opposite direction, so that coal gas reaches the intensification purpose.4 li of heat-exchange equipments, the coal gas of condensation is heated up reach coal gas temperature or needed temperature before dewatering through heat exchange.
Heat-exchange equipment makes 10-60 ° of temperature of gas rising through pre-heating temperature elevation, makes temperature of gas be higher than 30 °.
Coal gas through cooling spray, silk screen dehydration, condensation dewaters and heat exchange, and coal gas is kept on the basis of original temperature, has realized that coal gas dewaters, the calorific value that has improved coal gas with reduced corrosion on Equipment, have high commercial value and energy-conserving and environment-protective meaning.
The utility model is not limited to the content that claim and the foregoing description are addressed, as long as any invention of creating out according to the design of the utility model all should belong within the protection domain of the utility model.
Claims (4)
1. dehydrating unit is coagulated in an energy-saving coal air cooling; It is characterized in that: comprise the coal gas cooling and spraying system (1), silk screen dehydration equipment, the condensation that connect successively through pipeline dewater unit (3) and heat-exchange equipment (4), said coal gas cooling and spraying system (1) comprises cooling tower (5), pump (6), water treating equipment (7) and the spray column (8) that constitutes the recycle system; Said silk screen dehydration equipment comprises wire mesh dehydrator (2) and water discharging valve (9); The said condensation unit (3) that dewaters comprises that at least one constitutes cooling tower (5), pump (6), bromine machine (10) and the surface cooler (11) of the recycle system.
2. dehydrating unit is coagulated in a kind of energy-saving coal air cooling according to claim 1; It is characterized in that; In coal gas cooling and spraying system (1), the spray water of spray column (8) lining is discharged from spray column (8) the water behind the coal gas spray by cooling tower (5) cooling; Through getting into cooling tower (5) cooling, circulation successively after water treating equipment (7) processing once more.
3. dehydrating unit is coagulated in a kind of energy-saving coal air cooling according to claim 2, it is characterized in that, said condensation dewaters needs 1-10 the recycle system by cooling tower (5), pump (6), bromine machine (10) and surface cooler (11) formation in the unit (3).
4. dehydrating unit is coagulated in a kind of energy-saving coal air cooling according to claim 3, it is characterized in that, the total quantity of said bromine machine is the 1-30 platform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200226907U CN202543161U (en) | 2012-01-17 | 2012-01-17 | Energy-saving coal gas condensing and dehumidifying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200226907U CN202543161U (en) | 2012-01-17 | 2012-01-17 | Energy-saving coal gas condensing and dehumidifying device |
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| Publication Number | Publication Date |
|---|---|
| CN202543161U true CN202543161U (en) | 2012-11-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200226907U Expired - Fee Related CN202543161U (en) | 2012-01-17 | 2012-01-17 | Energy-saving coal gas condensing and dehumidifying device |
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| CN (1) | CN202543161U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102585920A (en) * | 2012-01-17 | 2012-07-18 | 北京硕人海泰能源科技有限公司 | Energy-saving type coal gas condensation dehumidifying device and process thereof |
| CN104594965A (en) * | 2013-10-31 | 2015-05-06 | 北京华航盛世能源技术有限公司 | Organic Rankine cycle power generation system |
-
2012
- 2012-01-17 CN CN2012200226907U patent/CN202543161U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102585920A (en) * | 2012-01-17 | 2012-07-18 | 北京硕人海泰能源科技有限公司 | Energy-saving type coal gas condensation dehumidifying device and process thereof |
| CN104594965A (en) * | 2013-10-31 | 2015-05-06 | 北京华航盛世能源技术有限公司 | Organic Rankine cycle power generation system |
| CN104594965B (en) * | 2013-10-31 | 2016-06-01 | 北京华航盛世能源技术有限公司 | A kind of organic Rankine cycle power generation system |
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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 |
Granted publication date: 20121121 Termination date: 20190117 |
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| CF01 | Termination of patent right due to non-payment of annual fee |