CN202543108U - Methanol synthesis system - Google Patents

Methanol synthesis system Download PDF

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Publication number
CN202543108U
CN202543108U CN201220172067XU CN201220172067U CN202543108U CN 202543108 U CN202543108 U CN 202543108U CN 201220172067X U CN201220172067X U CN 201220172067XU CN 201220172067 U CN201220172067 U CN 201220172067U CN 202543108 U CN202543108 U CN 202543108U
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hydraulic turbine
water
methyl alcohol
water pump
turbine machine
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李江保
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ENN Science and Technology Development Co Ltd
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ENN Science and Technology Development Co Ltd
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    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
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    • Y02P20/50Improvements relating to the production of bulk chemicals

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Abstract

The utility model provides a methanol synthesis system which comprises a methanol high-pressure separator, a flash drum and a hydraulic turbine, wherein a working medium inlet of the hydraulic turbine machine is communicated with a methanol outlet of the methanol high-pressure separator; and a working medium outlet of the hydraulic turbine machine is communicated with an inlet of the flash drum. The utility model can recycle pressure energy contained in methanol generated by the methanol high-pressure separator, thereby avoiding unnecessary energy loss.

Description

System for methanol synthesis
Technical field
The system for methanol synthesis that the utility model relates to a kind of methanol synthesizing process and adopts this methanol synthesizing process.
Background technology
Methyl alcohol is a kind of important source material of chemical industry, also is a kind of staple product.In the methanol production, after the gas cooling that synthesis reactor is come out, gas circulation is got back to reactor inlet, and the liquid crude methanol that contains the first alcohol and water then enters the tank field or get into rectifying separation to go out refined methanol.Synthesis reactor pressure is higher, can reach 8.0MPa, and irrigated area and rectifying tower pressure are lower, are generally about 0.4MPa.Methanol production manufacturer directly makes the thick methyl alcohol of high pressure conditions directly get into the irrigated area and the rectifying tower of low-pressure state through valve at present, and pressure can lose fully.As this part pressure can be reclaimed, can obtain good energy-saving effect.
Present methanol production factory all can not reclaim the pressure of thick methyl alcohol, and is referring to the system of the synthesizing methanol shown in Fig. 1, following to its process description.Reacted gas through first interchanger 3 and gas (comprising synthetic gas and the circulation gas) heat exchange that gets into synthetic tower 1, again through water cooler 5 condensations, gets in the methyl alcohol HP separator 7 and isolates the thick methyl alcohol of product.Most of gas at methyl alcohol HP separator 7 tops as recycle gas return (along arrow d) to the recycle compressor ingress supplementary pressure continued return synthetic tower 1, little of gas is through another workshop section's recovery part hydrogen, hydrogen send the synthesic gas compressor import.The thick methyl alcohol that condensation is got off through strainer 8, is delivered to methyl alcohol flash tank 9 through valve again.After the flash distillation, thick methyl alcohol is seen off the battery limit (BL) and is used for downstream process, and flash steam goes stove to act as a fuel along arrow g.
The defective of above-mentioned prior art is: from the thick methyl alcohol that methyl alcohol HP separator 7 comes out, pressure reaches 8.0MPa, has very high pressure ability, and behind strainer 8, again through valve, pressure drops to 0.4MPa, and this part power loss is fallen.
The utility model content
To the problem that exists in the correlation technique, the purpose of the utility model is to provide a kind of system for methanol synthesis, with contained pressure ability in the methyl alcohol that reclaims the generation of methyl alcohol HP separator, thereby avoids producing unnecessary power loss.
For realizing above-mentioned purpose, the utility model provides a kind of methanol synthesizing process, comprising: can reclaim the contained pressure of the isolated methyl alcohol of methyl alcohol HP separator; Then, the methyl alcohol that carries out after pressure can reclaim is carried out flash distillation.
Preferably, carry out pressure through the hydraulic turbine machine and can reclaim, and the mechanical energy of hydraulic turbine machine output is flowed to generator or water pump or phonomoter as motivating force.
Preferably, the utility model technology also comprises: with the shaft seal end face of de-mineralized water cooling fluid power turbine, and de-mineralized water and the methyl alcohol after the flash distillation that will cool off behind the shaft seal end face converge.
Preferably, when discharging in the turbine process of dissolved gases in the methyl alcohol at the hydraulic turbine machine, the methyl alcohol from the output of hydraulic turbine machine after gas that is discharged and the turbine processing is converged.
On the other hand; The utility model also provides a kind of system for methanol synthesis that is used for the aforementioned arbitrary technology of the utility model; System for methanol synthesis comprises: methyl alcohol HP separator, flash tank and hydraulic turbine machine; Wherein, the working medium of hydraulic turbine machine inlet is communicated with the methyl alcohol outlet of methyl alcohol HP separator, and the sender property outlet of hydraulic turbine machine is communicated with the inlet of flash tank.
Preferably, on the connecting pipeline between the working medium inlet of methyl alcohol outlet and hydraulic turbine machine, also be provided with strainer.
Preferably, the main shaft output terminal of hydraulic turbine machine is connected with the drive shaft of generator.
Preferably, system for methanol synthesis also comprises: for synthesizing methanol reacts the synthetic tower that reaction compartment is provided, have the air outlet that supplies reaction back gas to discharge; And, be connected between the inlet of air outlet and methyl alcohol HP separator of synthetic tower the device that the reacted gas of discharging from synthetic tower carries out condensation.
Preferably; System for methanol synthesis also comprises with the synthetic tower being the boiler water circulation system of heat source accommodation device; The boiler water circulation system comprises: boiler and drive water in the boiler and from synthetic tower, absorbs synthesizing methanol and react the one group of water pump that returns boiler after institute's release of heat; Wherein, this group water pump is made up of at least two water pumps parallelly connected or that be cascaded, and the drive shaft of one of them water pump is connected with the main shaft output terminal of hydraulic turbine machine.
Preferably, synthetic tower also has: supply to absorb medium inlet and the media outlet that synthesizing methanol reacts the medium turnover of institute's release of heat; Boiler has recirculated water inlet and circulating water outlet, and this group water pump is formed by two water pumps that are connected in parallel; Wherein, the pump intake of these two water pumps is communicated with the circulating water outlet of boiler, and the pump discharge of these two water pumps is communicated with the medium inlet of synthetic tower, and the media outlet of synthetic tower is communicated with the recirculated water of boiler inlet.
Preferably; With this group water pump of drive unit replacement of forming by the asynchronous machine and first water pump; Connect together through shaft coupling between the drive shaft of the output shaft of asynchronous machine and first water pump, the input shaft of asynchronous machine connects together through the main shaft output terminal of clutch coupling and hydraulic turbine machine.
Preferably; With this group water pump of drive unit replacement of forming by the asynchronous machine and first water pump; One end of the drive shaft of the output shaft of asynchronous machine and first water pump connects together through shaft coupling, and the other end of the drive shaft of first water pump is connected with the main shaft output terminal of hydraulic turbine machine through clutch coupling.
Preferably, on the hydraulic turbine machine, be provided with the venting port that supplies institute in the methyl alcohol turbine process to discharge the gas discharge, and venting port passes through pipeline and is communicated with the sender property outlet of hydraulic turbine machine.
The useful technique effect of the utility model is:
(1) the utility model technology is carried out pressure earlier to the isolated methyl alcohol of methyl alcohol HP separator and can be reclaimed, and then the methyl alcohol that carries out after pressure can reclaim is carried out flash distillation.When adopting the hydraulic turbine machine to carry out pressure can reclaim the time,, press efficiency of turbine 80% calculating for the Methanol Plant of 600,000 tons/year of cover scales; Recyclable power 200kW, when electricity price is 0.45 yuan/kWh, year about 800,000 Renminbi of benefit; When electricity price is 1 yuan/kWh, year about 1,700,000 Renminbi of benefit.Correspondingly, the utility model system is provided with the hydraulic turbine machine between methyl alcohol HP separator and flasher, when adopting the utility model system to carry out the utility model technology, obtains same technological effect.
(2) technology of the utility model and system carry out above-mentioned pressure through the hydraulic turbine machine and can reclaim, and the mechanical energy that the hydraulic turbine machine is converted to as motivating force driving water pump, motor or generator, thereby effectively utilize the pressure ability.
(3) the utility model system also organically is combined with boiler water circulation system (with synthetic tower as heat source accommodation device); The situation that has frequency-adjustable speed-adjustable for the boiler water circulation system; When cycle power device in the boiler water circulation system during at least two water pumps; The hydraulic turbine machine is connected with one of them water pump in the utility model system, and after the operation of hydraulic turbine machine, starts this water pump, thereby discharge increases in the boiler water circulation system; At this moment speed control by frequency variation meeting reduces the water pump of original operation (not being the water pump that is driven by hydraulic turbine machine output mechanical energy) flow, and practiced thrift electric energy through speed control by frequency variation automatically; And when these water pumps are parallel connection, can not impact production.
(4) for the boiler water system that organically is connected in the utility model system; When adopting the drive unit be made up of the asynchronous machine and first water pump as described cycle power device, the hydraulic turbine machine connects first water pump through clutch coupling or drives the asynchronous machine of first water pump.When the hydraulic turbine machine was not opened, clutch coupling was in off-state automatically, produced running as usual.After the hydraulic turbine machine was opened, the main shaft of hydraulic turbine machine rotated, when rotating speed is lower than first water pump or its rotating speed of motor; Clutch coupling still is in off-state automatically; Have only when the rotating speed of hydraulic turbine machine reaches first water pump or its rotating speed of motor, clutch coupling is auto-closing, and turbine drives the first water pump work done; The electric current of motor descends automatically, thereby reaches the purpose of economize on electricity.When the rotating speed of hydraulic turbine machine slows down, when being lower than first water pump or its rotating speed of motor, clutch coupling is automatic opening again.Because the function of clutch coupling auto-closing and automatic opening is arranged, and the hydraulic turbine machine has no influence to production.
(5) the utility model technology also comprises: when discharging in the turbine process of dissolved gases in the methyl alcohol at the hydraulic turbine machine; The gas that is discharged is handled the back with turbine to be converged from the methyl alcohol of hydraulic turbine machine output and flows into subsequent processing; Thereby avoided: because dissolve with methanol has gas; Gas release comes out to have a strong impact on efficiency of turbine in the turbine process, and to the vibrative defective of turbine; Correspondingly, the utility model is provided with the venting port that supplies institute in the methyl alcohol turbine process to discharge the gas discharge on the hydraulic turbine machine, and this venting port passes through pipeline and be communicated with the sender property outlet of hydraulic turbine machine, to obtain constructed effect.
(6) the utility model technology also comprises: with the shaft seal end face of de-mineralized water cooling fluid power turbine; And de-mineralized water and the methyl alcohol after the flash distillation that will cool off behind the shaft seal end face converges, thereby the problem that methyl alcohol (being toxic substance) leaks appears in the sealing that has prevented the hydraulic turbine machine when going wrong.
Description of drawings
Fig. 1 is the synoptic diagram of prior art system for methanol synthesis;
Fig. 2 is the synoptic diagram of first embodiment of the utility model system for methanol synthesis;
Fig. 3 is the synoptic diagram of second embodiment of the utility model system for methanol synthesis;
Fig. 4 is the synoptic diagram of the 3rd embodiment of the utility model system for methanol synthesis;
Fig. 5 is the synoptic diagram of the 4th embodiment of the utility model system for methanol synthesis;
Fig. 6 is the synoptic diagram of the hydraulic turbine machine after the improvement adopted of the utility model.
Drawing reference numeral:
1 synthetic tower, 27 generators
3 first interchanger, 33 inlets
5 water coolers, 31 venting ports
35 outlets of 7 methyl alcohol HP separators
8 strainer arrow a represent the flow direction of water
9 methyl alcohol flash tank arrow b are flow directions of water heat absorption steam water interface that the back becomes
11 boiler arrow c are that synthetic gas and circulation gas flow to through first interchanger
13 second water pump arrow d represent the flow direction of recycle gas
15 the 3rd water pump arrow e represent the flow direction of lower concentration methyl alcohol or water
17 hydraulic turbine machine arrow f represent the flow direction of thick methyl alcohol
19 equilibration tube arrow g represent the flow direction of flash steam
Flow direction when 21 asynchronous machine arrow h represent de-mineralized water cooling end face
23 clutch coupling arrow i represent that the backwater of de-mineralized water flows to
25 first water pump arrow j represent steam flow
Arrow k representes to boiler fills
Embodiment
Below the ginseng accompanying drawing is described the utility model embodiment.
First embodiment referring to the utility model system for methanol synthesis shown in Fig. 2; The utility model methanol synthesizing process is described; Particularly: the reacted gas of synthesizing methanol in the synthetic tower 1; Through first interchanger 3 and gas (comprise along arrow c and get into synthetic gas and circulation gas in the first interchanger 3) heat exchange that gets into synthetic tower 1,, get in the methyl alcohol HP separator 7 and isolate the thick methyl alcohol of product again through water cooler 5 condensations; Most of gas at methyl alcohol HP separator 7 tops turns back to recycle compressor ingress supplementary pressure continued as recycle gas along arrow d and returns synthetic tower 1, and little of gas is through another workshop section's recovery part hydrogen, and hydrogen send the synthesic gas compressor import.The thick methyl alcohol that condensation is got off, through strainer 8, feed liquor power turbine 17 is delivered to methyl alcohol flash tank 9 through valve again; After the flash distillation, thick methyl alcohol is seen off the battery limit (BL) along arrow f and is used for downstream process, and the flash steam of discharging along arrow g goes stove to act as a fuel.Above-mentioned synthetic gas is to get in the synthetic tower 1 in order to carbon monoxide and the hydrogen (containing other gases such as partial CO 2) of synthesizing methanol, and circulation gas is the carbon monoxide and the hydrogen (containing other gases such as partial CO 2) that synthesizing methanol reacts of not participating in of discharging from methyl alcohol HP separator 7 tops.
According to above description referring to Fig. 2, the utility model methanol synthesizing process comprises: can reclaim the contained pressure of methyl alcohol HP separator 7 isolated methyl alcohol (for liquid, being called thick methyl alcohol); Then the methyl alcohol that carries out after pressure can reclaim is carried out flash distillation.Further, the utility model is to carry out pressure through 17 pairs of thick methyl alcohol of hydraulic turbine machine can reclaim this just situation shown in Fig. 2.And as following will the description referring to Fig. 3-5, can the mechanical energy of hydraulic turbine machine 17 outputs be flowed to generator 27 or the 3rd water pump 15 or phonomoter (for example asynchronous machine 21) etc. as motivating force, can convert the pressure that reclaims to the institute energy requirement.In addition because methyl alcohol is toxic substance; In order to prevent that methyl alcohol from leaking; Guaranteeing also can be perfectly safe when 17 sealings of hydraulic turbine machine go wrong; With the water coolant of de-mineralized water as the shaft seal end face of hydraulic turbine machine 17, the backwater behind the cooling shaft seal end face converges to get into subsequent processing with the thick methyl alcohol of discharging from methyl alcohol flash tank 9 along arrow i.And between the high-pressure side of hydraulic turbine machine 17 and low pressure end, also add an equilibration tube 19.Again because dissolve with methanol has gas; Gas release comes out to have a strong impact on efficiency of turbine in the turbine process of hydraulic turbine machine 17; And to turbine generation vibration; So the utility model methanol synthesizing process also comprises: when discharging in the turbine process of dissolved gases in the methyl alcohol at hydraulic turbine machine 17, the gas that is discharged is handled the back with turbine converge from the methyl alcohol of hydraulic turbine machine 17 outputs and flow into next process.Described de-mineralized water is the water that removes clean to the salt in the water, and is through after conventional the purification, filtering through IX more earlier, is thorough clean water.
On the other hand, the utility model also provides a kind of system for methanol synthesis, is used for the aforementioned arbitrary methanol synthesizing process of the utility model, and Fig. 2-5 shows the different embodiment of the utility model system for methanol synthesis.
[first embodiment of system for methanol synthesis]
Describe first embodiment of the utility model system for methanol synthesis referring to Fig. 2, it comprises: methyl alcohol HP separator 7, methyl alcohol flash tank 9 and hydraulic turbine machine 17.Hydraulic turbine machine 17 has working medium inlet and sender property outlet, and the methyl alcohol of methyl alcohol HP separator 7 separation place gets into from the working medium inlet, finally discharges from sender property outlet, and the main shaft of hydraulic turbine machine 17 is in order to export the mechanical energy that is converted to behind the turbine.The working medium inlet of hydraulic turbine machine 17 is communicated with the methyl alcohol outlet of methyl alcohol HP separator 7, and the sender property outlet of hydraulic turbine machine 17 is communicated with the inlet of methyl alcohol flash tank 9.Continuation is referring to Fig. 2; Can also on the connecting pipeline between the working medium inlet of the outlet of the methyl alcohol of methyl alcohol HP separator 7 and hydraulic turbine machine 17, strainer 8 be set, so that methyl alcohol HP separator 7 isolated methyl alcohol are just getting into hydraulic turbine machine 17 after through filtration.Also be illustrated among Fig. 2 between high-pressure side and the low pressure end of hydraulic turbine machine 17 and add an equilibration tube 19, the high-pressure side here obviously is exactly the working medium inlet, and low pressure end is exactly a sender property outlet.
In Fig. 2, also show synthetic tower 1; This synthetic tower 1 supplies the air outlet of the reacted gas discharge of synthesizing methanol and supplies to absorb the medium turnover of synthesizing methanol reaction institute release of heat for the synthesizing methanol reaction provides reaction compartment, synthetic tower 1 to have medium inlet and media outlet.Because the reacted gas of the synthesizing methanol that synthetic tower 1 comes out needs to get in the methyl alcohol HP separator 7 through after the condensation process again.Therefore for example shown in Figure 2, the device through first interchanger 3 and water cooler 5 are formed carries out condensation to the reacted gas of described synthesizing methanol; Particularly, earlier with the heat release in first interchanger 3 of the reacted gas of synthesizing methanol, and then in water cooler 5 heat release to realize described condensation process.Above-mentioned first interchanger 3 and water cooler 5 promptly constitute the device that the reacted gas of synthesizing methanol that synthetic tower 1 is discharged carries out condensation, and it is connected between the inlet of air outlet and methyl alcohol HP separator 7 of synthetic tower 1.
[second embodiment of system for methanol synthesis]
Second embodiment of the utility model system for methanol synthesis is described referring to Fig. 3; In this embodiment; System for methanol synthesis also organically is combined with the boiler water circulation system; Because the synthesizing methanol that takes place in the synthetic tower 1 reaction release of heat, so this boiler water circulation system is a heat source accommodation device with synthetic tower 1.Shown in Fig. 3, the boiler water circulation system also comprises: boiler 11; The water that drives in the boiler 11 circulates between synthetic tower 1 and boiler 11, wherein when water absorbs synthesizing methanol reaction institute release of heat in synthetic tower 1 after, returns boiler 11; And the one group of water pump (being the water pump of two parallel connections among this embodiment: second water pump 13 and the 3rd water pump 15) that is made up of parallel connection or at least two water pumps being cascaded is with the driving water cycle; Wherein a water pump in this group water pump (for example the 3rd water pump 15) is driven by the mechanical energy of hydraulic turbine machine 17 outputs, promptly is connected through shaft coupling with the main shaft output terminal of hydraulic turbine machine 17.Can find out that from Fig. 3 the drive shaft of the main shaft of hydraulic turbine machine 17, the 3rd water pump 15 and the coupling shaft that couples together in order to the drive shaft with the main shaft of hydraulic turbine machine 17 and the 3rd water pump 15 are arranged coaxially to each other.
The annexation of boiler water circulation system is following among Fig. 3: these two water pumps 13 and 15 pump intake all are communicated with the circulating water outlet of boiler 11; The pump discharge of these two water pumps all is communicated with the medium inlet of synthetic tower 1, and the media outlet of synthetic tower 1 is communicated with the recirculated water inlet of boiler 11.Arrow j is the steam flow that boiler produces, and k representes to add water to boiler 11.
The motor of second water pump 13 has the frequency-adjustable speed-adjustable device, and after hydraulic turbine machine 17 drove 15 runnings of the 3rd water pump, the frequency-adjustable speed-adjustable device can reduce the rotating speed of second water pump 13, reaches the effect of economize on electricity.
Except the boiler water circulation system, and utilize outside the pump in the hydraulic turbine machine 17 driving boiler water circulation systems, the rest part of this embodiment is identical with second embodiment.
[the 3rd embodiment of system for methanol synthesis]
Referring to Fig. 4,, when replacing one group of water pump among second embodiment, promptly constitute the 3rd embodiment when drive unit to constitute by the asynchronous machine 21 and first water pump 25.In the 3rd embodiment, divide two kinds of situation: connect together through shaft coupling between the output shaft of (1) asynchronous machine 21 and the drive shaft of first water pump 25, the input shaft of asynchronous machine 21 connects together through the main shaft output terminal of clutch coupling 23 with hydraulic turbine machine 17; Shown in Fig. 4 is exactly this situation.One end of the drive shaft of (2) first water pumps 25 connects together through the output shaft of shaft coupling and asynchronous machine 21, and the other end of the drive shaft of first water pump 25 is connected with the main shaft output terminal of hydraulic turbine machine 17 through clutch coupling 23; This situation is the obvious modification of above-mentioned situation (1), therefore starts from for simplicity no longer to illustrate.
For said circumstances (1) and (2), when hydraulic turbine machine 17 was not opened, clutch coupling 23 was in off-state automatically, produced running as usual.After hydraulic turbine machine 17 was opened, the main shaft of hydraulic turbine machine 17 rotated, when rotating speed is lower than the rotating speed of first water pump 25 or its asynchronous machine 21; Clutch coupling 23 still is in off-state automatically; Have only when the rotating speed of hydraulic turbine machine 17 reaches the rotating speed of first water pump 25 or its asynchronous machine 21, clutch coupling 23 is auto-closing, and hydraulic turbine machine 17 drives 25 works done of first water pump; The electric current of asynchronous machine 21 descends automatically, thereby reaches the purpose of economize on electricity.When the rotating speed of hydraulic turbine machine 17 slows down, when being lower than the rotating speed of first water pump 25 or its asynchronous machine 21, clutch coupling 23 automatic opening again.Because the function of clutch coupling 23 auto-closings and automatic opening is arranged, and 17 pairs of productions of hydraulic turbine machine have no influence.
[the 4th embodiment of system for methanol synthesis]
Referring to Fig. 5, be than the first embodiment difference, the main shaft output terminal of hydraulic turbine machine 17 is connected with the drive shaft of generator 27, can convert the contained pressure of methyl alcohol HP separator 7 isolated methyl alcohol to electric energy.The rest part structure is identical with first embodiment, repeats no more.
Because dissolve with methanol has gas; Gas release comes out to have a strong impact on efficiency of turbine in the methyl alcohol turbine process; And, need the gas that discharged be handled the back with turbine and converge from the methyl alcohol of hydraulic turbine machine 17 outputs and flow into subsequent processing the vibrative defective of turbine.Therefore, the hydraulic turbine machine 17 of the utility model system for methanol synthesis, the venting port 31 that supplies institute in the methyl alcohol turbine process to discharge the gas discharge that is provided with as shown in Figure 6, venting port 31 enters the mouth (high-pressure side) 33 and sender property outlet (low pressure end) between 35 in working medium.Venting port 31 is communicated with the sender property outlet of hydraulic turbine machine 17 through pipeline, can be connected through valve between pipeline and the venting port 31.Obviously, this also is applicable to 4 embodiment of above-mentioned system for methanol synthesis.
The preferred embodiment that the above is merely the utility model is not limited to the utility model, and for a person skilled in the art, the utility model can have various changes and variation.All within the spirit and principle of the utility model, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection domain of the utility model.

Claims (9)

1. a system for methanol synthesis is characterized in that, comprising: methyl alcohol HP separator, flash tank and hydraulic turbine machine,
Wherein, the working medium of said hydraulic turbine machine inlet is communicated with the methyl alcohol outlet of said methyl alcohol HP separator, and the sender property outlet of said hydraulic turbine machine is communicated with the inlet of said flash tank.
2. system for methanol synthesis according to claim 1 is characterized in that,
On the connecting pipeline between the working medium inlet of said methyl alcohol outlet and said hydraulic turbine machine, also be provided with strainer.
3. system for methanol synthesis according to claim 1 and 2 is characterized in that,
The main shaft output terminal of said hydraulic turbine machine is connected with the drive shaft of generator.
4. system for methanol synthesis according to claim 1 and 2 is characterized in that, also comprises:
For synthesizing methanol reacts the synthetic tower that reaction compartment is provided, has the air outlet that supplies reaction back gas to discharge; And
To the device that the reacted gas of discharging from said synthetic tower carries out condensation, be connected between the inlet of said air outlet and said methyl alcohol HP separator of said synthetic tower.
5. system for methanol synthesis according to claim 4 is characterized in that, also comprises with said synthetic tower being the boiler water circulation system of heat source accommodation device, and said boiler water circulation system comprises:
Boiler and drive water in the said boiler and from said synthetic tower, absorb the one group of water pump that returns said boiler after the synthesizing methanol reaction institute release of heat,
Wherein, this group water pump is made up of at least two water pumps parallelly connected or that be cascaded, and the drive shaft of one of them said water pump is connected with the main shaft output terminal of said hydraulic turbine machine.
6. system for methanol synthesis according to claim 5 is characterized in that,
Said synthetic tower also has: supply to absorb medium inlet and the media outlet that synthesizing methanol reacts the medium turnover of institute's release of heat;
Said boiler has recirculated water inlet and circulating water outlet, and described one group of water pump is formed by two water pumps (13,15) that are connected in parallel;
Wherein, the pump intake of these two water pumps (13,15) is communicated with the circulating water outlet of said boiler, and the pump discharge of these two water pumps is communicated with the medium inlet of said synthetic tower, and the media outlet of said synthetic tower is communicated with the recirculated water of said boiler inlet.
7. system for methanol synthesis according to claim 5 is characterized in that,
Replace described one group of water pump with the drive unit of forming by asynchronous machine and first water pump (25), connect together through shaft coupling between the drive shaft of the output shaft of said asynchronous machine and said first water pump (25),
Wherein, the input shaft of said asynchronous machine connects together through the main shaft output terminal of clutch coupling and said hydraulic turbine machine.
8. system for methanol synthesis according to claim 5 is characterized in that,
Replace described one group of water pump with the drive unit of being made up of asynchronous machine and first water pump (25), an end of the drive shaft of the output shaft of said asynchronous machine and said first water pump (25) connects together through shaft coupling,
Wherein, the other end of the drive shaft of said first water pump (25) is connected with the main shaft output terminal of said hydraulic turbine machine through clutch coupling.
9. according to each said system for methanol synthesis among claim 1-2, the 5-8, it is characterized in that,
On said hydraulic turbine machine, be provided with the venting port that supplies institute in the methyl alcohol turbine process to discharge the gas discharge, and said venting port passes through pipeline and is communicated with the said sender property outlet of said hydraulic turbine machine.
CN201220172067XU 2012-04-20 2012-04-20 Methanol synthesis system Expired - Lifetime CN202543108U (en)

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CN201220172067XU CN202543108U (en) 2012-04-20 2012-04-20 Methanol synthesis system

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