CN202719583U - Reaction heat recovery device of coal-derived natural gas - Google Patents
Reaction heat recovery device of coal-derived natural gas Download PDFInfo
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- CN202719583U CN202719583U CN 201220366131 CN201220366131U CN202719583U CN 202719583 U CN202719583 U CN 202719583U CN 201220366131 CN201220366131 CN 201220366131 CN 201220366131 U CN201220366131 U CN 201220366131U CN 202719583 U CN202719583 U CN 202719583U
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Abstract
The utility model discloses a reaction heat recovery device of coal-derived natural gas. The reaction heat recovery device comprises a shell which is internally provided with a U-shaped heat exchange pipe, wherein the lower end of the shell is provided with a clean water inlet, the upper end of the shell is provided with air bag, and one end of the shell is connected with a pipe plate; the outer side of the pipe plate is provided with a pipe box, and the inner cavity of the pipe box is divided into a high-temperature upper cavity and a low-temperature lower cavity through a pass partition; the U-shaped heat exchange pipe is arranged on the pipe plate and is respectively communicated with the high-temperature upper cavity and a low-temperature lower cavity, and the air inlet end of the high temperature upper cavity is communicated with a reaction air inlet; and the air outlet end of the low-temperature lower cavity is communicated with a reaction air outlet, and the pipe box is internally provided with a fireproof heat insulation liner and a heat-resisting protective cover. The reaction heat recovery device provided by the utility model can be used for solving the generated high-temperature gas heat recovery problem in the coal-derived natural gas, the reaction heat of the coal-derived natural gas can be reutilized, an energy source is saved, and a great deal of high-temperature gas is prevented from being discharged into the air so as to lead to an earth heating effect.
Description
Technical field
The utility model relates to a kind of heat recovery equipment, specifically a kind of reaction heat retracting device of coal preparing natural gas.
Background technology
Natural gas more and more is subject to people's favor as the high-grade energy of a kind of cleaning, safety, become the development trend of China for oil, with gas generating and popularization with gas, in the consumption structure of natural gas, chemical industry and gas account for more than 60% of total amount.And China is the country of a rich coal oil starvation weak breath, the per capita rate of natural gas resource is less than 10% of world average level, so coal is converted to natural gas, the Substitute For Partial natural gas resource, reduce the dust pollution that coal directly uses or Coal Transport produces, meeting the industrial policy of country, also is the new way of opening up clean energy resource.The five horizontal two vertical gas distributing systems in the national planning covering whole nation, formation is transferred natural gas from the west to the east, northern gas is gone down south and the air feed general layout of liquefied natural gas.
The process route of coal preparing natural gas is: the conversion unstripped gas enters reactor, carry out synthetic reaction in catalytic bed, the gas that produces in the reactor is sent from reactor outlet, and send the reaction heat retracting device to, by heat exchange the water of reaction heat retracting device is converted to the high temperature saturated vapor, delivers to steam turbine power generation through superheater again and use.The gas after the reactor catalysis bed carries out synthetic reaction wherein, composition is: H
289.4%, CO7.22%, CO
22.69%, N
20.69%, hydrogen accounts for significant proportion.Owing to being exothermic reaction, the outlet maximum temperature reaches 750 ° of C, and pressure is up to 3.8MPa, and the hydrogen-type corrosion under such high temperature, condition of high voltage and high temperature, the high pressure has all exceeded the ability to bear of popular response heat reclamation device.Present reaction heat retracting device structure generally all is the structure of heat exchanger pattern in addition, when being applied to 750 ℃ of high-temperature reacting gas are cooled off, not only tube pitch is less, the volume rapid expansion of cooling water under the high temperature, do not have corresponding broad space, and 750 ℃ of high-temperature reacting gas temperature are higher, and contain a large amount of hydrogen, the corrosion of heat exchanger is very serious, and therefore the embedding structure of this reaction heat retracting device is not suitable for the waste heat recovery of coal preparing natural gas.
The utility model content
The utility model technical issues that need to address provide a kind of rational in infrastructure, can bear the high temperature and high pressure gas that produces in the coal preparing natural gas process, and the waste-heat recovery device that can avoid under high temperature and high pressure environment, being subject to hydrogen-type corrosion.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is:
The reaction heat retracting device of coal preparing natural gas, comprise that inside is equiped with the housing of U-shaped heat exchanger tube, the lower end of described housing is provided with the clean water import, the upper end of housing be provided be communicated with housing, be used for holding and the drum of released vapour the airtight tube sheet that is connected with of one end of housing; The arranged outside of tube sheet has and the airtight bobbin carriage that is connected and is fixedly connected with housing by flange of tube sheet, the inner chamber of bobbin carriage is divided into high temperature epicoele and low temperature cavity of resorption by pass partition, described U-shaped heat exchanger tube is arranged on the tube sheet and is communicated with high temperature epicoele and the low temperature cavity of resorption of bobbin carriage respectively, the inlet end of described high temperature epicoele is communicated with the reaction gas entrance that is arranged on the bobbin carriage top, and the outlet side of low temperature cavity of resorption is communicated with the reaction gas outlet that is arranged on the bobbin carriage bottom; Be provided with the refractory heat-insulating lining above the inwall of described bobbin carriage, the outside of tube sheet and the pass partition, also be provided with for the heat-resisting protective cover that supports the refractory heat-insulating lining on described refractory heat-insulating lining and the face that high temperature epicoele and low temperature cavity of resorption contact.
Further improvement of the utility model is: also be provided with the water-cooling jacket for the cooling bobbin carriage on the outer wall of described bobbin carriage, the lower end of described bobbin carriage outer wall is provided with the cooling water inlet that is communicated with water-cooling jacket, and the top of bobbin carriage outer wall is provided with the coolant outlet that is communicated with water-cooling jacket.
Further improvement of the utility model is: the described inside that is positioned at the U-shaped heat exchanger tube of tube sheet is provided with the thermal sleeve for the protection of tube sheet.
Further improvement of the utility model is: the top of described housing is provided with the gauge port E1 for the setting pressure table; The bottom of housing is provided with the sewage draining exit for the discharging dirt; The end that housing is relative with tube sheet is provided with for the thermometer boss that thermometer is installed with for the liquid level gauge mouth D1 that liquid level sensor and liquid level gauge are installed.
Further improvement of the utility model is: the top of described drum is provided with safety valve, is provided with for the gauge port E2 of setting pressure table on the sidewall of drum and is used for the steam (vapor) outlet of released vapour; Be provided with on the sidewall of drum bottom for the liquid level gauge mouth D2 that liquid level sensor and liquid level gauge are installed.
Further improvement of the utility model is: described steam outlet is provided with steam-water separator.
Because the technological progress of having adopted technique scheme, the utility model to obtain is:
The utility model solved the coal preparing natural gas synthetic in the difficult problem of the high-temperature gas heat recovery of reactor outlet and high pressure, hydrogen-type corrosion equipment, be conducive to promote that coal conversion is the development of the industry of natural gas, and the reaction heat retracting device of coal preparing natural gas reclaims reaction heat, produce the high temperature saturated vapor, through superheater saturated vapor is become superheated steam again, delivering to gas bag generates electricity for steam turbine, saved the energy, avoided a large amount of high temperature and high pressure gas are discharged into and cause earth fuel factor in the air.
The U-shaped heat exchanger tube is fixed on the tube sheet, and is supported on the enclosure interior track, does not contact with inner walls, is convenient to selecting of case material.
Refractory heat-insulating lining in the bobbin carriage and heat-resisting protective cover are with the reaction gas isolation of bobbin carriage, tube sheet and pass partition and HTHP; reduce the temperature of bobbin carriage, tube sheet and pass partition; be convenient to bobbin carriage, tube sheet and pass partition Material selection, be beneficial to the service life that prolongs bobbin carriage, tube sheet and pass partition.
Water-cooling jacket on the bobbin carriage outer wall can further cool off bobbin carriage, guarantees safe operation.
The gauge port E1 on housing top is in order to the setting pressure table, and Pressure gauge is used for the pressure of monitoring enclosure interior, and when the pressure of enclosure interior surpassed operating pressure, safety valve opened to reduce the pressure of enclosure interior; The dirt that the sewage draining exit of housing bottom produces when being used for discharging cleaning housing inner chamber; Thermometer boss on housing another sidewall relative with tube sheet is used for installing thermometer, and thermometer is used for the temperature of monitoring enclosure interior, can prevent the enclosure interior excess Temperature; Liquid level gauge mouth D1 on housing another sidewall relative with tube sheet is used for installing liquid level sensor and liquid level gauge, liquid level sensor and liquid level gauge are used for the liquid level of monitoring enclosure interior, prevent that liquid level is lower than U-shaped heat exchanger tube position, affects the heat exchange of heat exchanger tube and clean water.
Gauge port E2 on the drum sidewall is used for the setting pressure table, and Pressure gauge is used for the pressure of steam in the monitoring drum, and when steam pressure surpassed operating pressure, the safety valve at drum top opened to reduce the pressure in the drum; Steam (vapor) outlet on the sidewall of drum is used for discharging the interior U-shaped heat exchanger tube of housing and clean water is carried out the steam that heat exchange produces; Liquid level gauge mouth D2 on the drum lower sides is used for installing liquid level sensor and liquid level gauge, and liquid level sensor and liquid level gauge are used for the liquid level of monitoring cleaning water, and the steam that can avoid producing in the housing can't be discharged from steam (vapor) outlet by drum.Steam outlet is provided with steam-water separator, avoids out the vapour water entrainment.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Wherein: 1, water-cooling jacket, 2, bobbin carriage, 3, the refractory heat-insulating lining; 4, pass partition, 5, the heat-resisting protective cover, 6, thermal sleeve; 7, tube sheet, 8, the U-shaped heat exchanger tube, 9, housing; 10, drum, 11, safety valve, 12, saddle; A1, cooling water inlet; A2, coolant outlet, B1, reaction gas entrance, B2, reaction gas outlet; C1, clean water import; C2, steam (vapor) outlet, D1, liquid level gauge mouth, D2, liquid level gauge mouth; E1, gauge port; E2, gauge port, G, thermometer boss, H: sewage draining exit.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is described in further details:
As shown in Figure 1, the reaction heat retracting device of coal preparing natural gas, comprise bobbin carriage 2, housing 9 and drum 10, housing 9 inside are equiped with U-shaped heat exchanger tube 8, U-shaped heat exchanger tube 8 is located and is stretched in the housing 9 by the tube sheet 7 that is arranged on housing 9 outsides, and the other end of U-shaped heat exchanger tube 8 is supported on housing 9 inner tracks; Tube sheet 7 and housing 9 relative opposite sides are provided with bobbin carriage 2, and bobbin carriage 2 and housing 9 are fixed together by flange separately, will be with tube sheet 7 jam-packeds of U-shaped pipe in the centre position; The upper end of housing 9 is provided with drum 10, and drum 10 is communicated with housing 9, is used for holding and released vapour.
Bobbin carriage 2 is used for holding reaction gas, and in the present embodiment, bobbin carriage 2 is selected the 06Cr19Ni10 stainless steel, meets the regulation of GB24511-2009 " bearing device with corrosion resistant plate and steel band ".Be provided with pass partition 4 in the bobbin carriage 2, the inner chamber of bobbin carriage 2 is divided into high temperature epicoele and low temperature cavity of resorption, the inlet end of high temperature epicoele is communicated with the reaction gas entrance B1 that is arranged on bobbin carriage 2 tops, and the outlet side of high temperature epicoele is communicated with the inlet end of U-shaped heat exchanger tube 8; The inlet end of low temperature cavity of resorption is communicated with the outlet side of U-shaped heat exchanger tube 8, and the outlet side of low temperature cavity of resorption is communicated with the reaction gas outlet B2 that is arranged on bobbin carriage 2 bottoms.The corrosive gas of the HTHP that the synthetic reaction of coal preparing natural gas produces, enter the high temperature epicoele of bobbin carriage 2 from reaction gas entrance B1, then the high temperature epicoele from bobbin carriage 2 enters U-shaped heat exchanger tube 8, high temperature pressure corrosion gas by U-shaped heat exchanger tube 8 in housing 9 with housing 9 in clean water carry out sufficient heat exchange, become low-temp low-pressure gas, low-temp low-pressure gas out enters the low temperature cavity of resorption of bobbin carriage 2 from the another port of U-shaped heat exchanger tube 8, discharge from reaction gas outlet B2 again.
Be provided with refractory heat-insulating lining 3 above the outside of the inwall of bobbin carriage 2, tube sheet 7 and the pass partition 4, also be provided with for the heat-resisting protective cover 5 that supports refractory heat-insulating lining 3 on refractory heat-insulating lining 3 and the face that high temperature epicoele and low temperature cavity of resorption contact.In the present embodiment, refractory heat-insulating lining 3 adopts domestic advanced ZS-1 high-temperature resistant coating, the refractory heat-insulating lining is provided with three layers altogether, ground floor is transition zone, adopts ZS-1011 coating to carry out coating, and the second layer is the intermediate layer, adopt ZS-1 coating to carry out coating, thick coating is 20mm, and the 3rd layer is confining bed, adopts ZS-1021 coating to carry out coating.
Be provided with water-cooling jacket 1 on the outer wall of bobbin carriage 2, water-cooling jacket 1 is used for cooling bobbin carriage 2.The lower end of bobbin carriage 2 outer walls is provided with the cooling water inlet A1 that is communicated with water-cooling jacket 1, and the top of bobbin carriage 2 outer walls is provided with the coolant outlet A2 that is communicated with water-cooling jacket 1; Cooling water enters from coolant intake in the interlayer inner chamber of water-cooling jacket 1, carries out sufficient heat exchange by cooling jacket and bobbin carriage 2 and becomes hot water, discharges from the cooling water outlet mouth, can do recirculated cooling water and continue to use.
In the present embodiment, housing 9 adopts AKV kettle type reboiler pattern, removes the movable bobbin carriage of former reboiler, and the bobbin carriage 2 in the utility model is fixedly connected with tube sheet 7, housing 9, with simplified structure, reduces the use of high-temperature material.The housing of the present embodiment adopts the housing of kettle type reboiler, and its heat transfer space is large, has guaranteed that high-temperature gas makes the cooling water needed space of gasifying rapidly.
Tube sheet 7 is pressed between the flange of the flange of housing 9 and bobbin carriage 2, is used for location U-shaped heat exchanger tube 8, and the inner chamber of bobbin carriage 2 with housing 9 separated.Be provided with the refractory heat-insulating lining 3 for the protection of tube sheet 7 on the outside end face of tube sheet 7, also be provided with the heat-resisting protective cover 5 that supports refractory heat-insulating lining 3 on refractory heat-insulating lining 3 and the end face that bobbin carriage 2 inner chambers contact; Thermal sleeve 6 is arranged on the inside of the U-shaped heat exchanger tube 8 that is positioned at tube sheet 7, and the external port of thermal sleeve 6 is welded on the heat-resisting protective cover 5 in tube sheet 7 outsides, and the length of thermal sleeve 6 is greater than the thickness of tube sheet.Filling is used for heat insulation ceramic fiber paper between thermal sleeve 6 and the U-shaped heat exchanger tube 8, avoids position that U-shaped heat exchanger tube 8 contacts with tube sheet 7 and the excess Temperature of tube sheet 7.
In the present embodiment; the material of U-shaped heat exchanger tube 8, heat-resisting protective cover 5 and thermal sleeve 6 is all selected the 06Cr25Ni20 stainless steel; the 06Cr25Ni20 stainless steel is austenitic chromium nickel stainless steel; have good non-oxidizability, corrosion resistance; because higher chromium content and nickel content are arranged; so that described stainless steel also has high temperature creep strength, at high temperature continuous operation has good heat-resisting quantity.
The top of housing 9 is provided with gauge port E1; Gauge port E1 is in order to the setting pressure table, and Pressure gauge is used for the pressure of monitoring housing 9 inside, and when the pressure of housing 9 inside surpassed operating pressure, safety valve 11 was opened, and to reduce the pressure of housing 9 inside, keeps housing 9 internal pressure substantially constants.
The bottom of housing 9 is provided with sewage draining exit H and the clean water import C1 for the discharging dirt, the dirt that sewage draining exit H produces when being used for discharging cleaning housing 9 inner chamber, and clean water import C1 is used to housing 9 to carry clean water.
Be provided with for thermometer boss G and liquid level gauge mouth D1 that thermometer is installed on another sidewall relative with tube sheet 7 of housing 9; Thermometer is used for the temperature of monitoring housing 9 inside, can prevent that housing 9 internal temperatures are too high.
The top of drum 10 is provided with safety valve 11, is provided with gauge port E2 on the sidewall of drum 10 and is used for the steam (vapor) outlet C2 of released vapour; Be provided with liquid level gauge mouth D2 on the sidewall of drum 10 bottoms.Becoming steam behind the heat of the clean water absorption U-shaped heat exchanger tube 8 in the housing 9 goes out from steam (vapor) outlet C2 by drum 10; Pressure gauge is in order to measure the pressure in the drum 10, and when the pressure in the drum 10 surpassed operating pressure, safety valve 11 was opened with step-down, keeps drum 10 interior operating pressure substantially constants.Liquid level gauge mouth D2 and liquid level gauge mouth D1 combine for liquid level sensor and liquid level gauge are installed, liquid level sensor and liquid level gauge are used for the liquid level of monitoring housing 9 interior clean water, both can prevent liquid level is crossed affects U-shaped heat exchanger tube 8 and clean water when hanging down heat exchange, the steam of housing 9 interior generations can't be discharged from steam (vapor) outlet C2 by drum 10 in the time of can avoiding again liquid level too high.Steam (vapor) outlet C2 place is provided with steam-water separator, with separate vapour and water, avoids out the vapour water entrainment.
The course of work of the present utility model is as described below:
When the utility model was started working, at first, the clean water import C1 of housing 9 bottoms opened, and clean water enters housing 9, floods U-shaped heat exchanger tube 8 fully, when liquid level arrives the control position, stopped to supply water; The coolant outlet A2 of the cooling water inlet A1 of water-cooling jacket 1 lower end and upper end opens simultaneously, and cooling water enters from coolant intake in the interlayer inner chamber of water-cooling jacket 1, discharges from the cooling water outlet mouth again, forms a cooling channel.
The corrosivity reaction gas of HTHP, enter the high temperature epicoele of bobbin carriage 2 from reaction gas entrance B1, then the high temperature epicoele from bobbin carriage 2 enters U-shaped heat exchanger tube 8, high temperature pressure corrosion gas by U-shaped heat exchanger tube 8 in housing 9 with housing 9 in clean water carry out sufficient heat exchange, become low-temp low-pressure gas, low-temp low-pressure gas out enters the low temperature cavity of resorption of bobbin carriage 2 from the another port of U-shaped heat exchanger tube 8, discharge from reaction gas outlet B2 again.
The high temperature epicoele that autoreaction gas enters bobbin carriage 2 begins, and the bobbin carriage wall heats up gradually, and the heat that the cold water that water-cooling jacket is 1 li will absorb bobbin carriage 2 is bobbin carriage 2 coolings, and self becomes hot water, discharges from the cooling water outlet mouth.
After reaction gas enters U-shaped heat exchanger tube 8, carry out heat exchange by heat exchanger tube and housing 9 interior clean water, the heat of water absorption heat-exchange pipe, temperature raises, and sharply vaporization produces a large amount of steam, and steam is discharged by the steam (vapor) outlet C2 of drum 10 from drum 10 tops.
Clean water temperature in housing 9 raises in the process of sharply vaporizing, the chamber pressure of housing 9 and drum 10 also constantly increases, when pressure surpasses operating pressure, the safety valve 11 of drum 10 is opened, and to reduce inner pressure, keeps housing 9 and drum 10 internal work pressure substantially constants, water is fewer and feweri simultaneously, when the water surface was reduced to the control position, clean water import C1 reopened, and began again to replenish clean water.
Claims (6)
1. the reaction heat retracting device of coal preparing natural gas, comprise that inside is equiped with the housing of U-shaped heat exchanger tube (8) (9), it is characterized in that: the lower end of described housing (9) is provided with clean water import (C1), the upper end of housing (9) be provided be communicated with housing (9), be used for holding and the drum (10) of released vapour the airtight tube sheet (7) that is connected with of one end of housing (9); The arranged outside of tube sheet (7) has and the airtight bobbin carriage (2) that is connected and is fixedly connected with housing (9) by flange of tube sheet (7), the inner chamber of bobbin carriage (2) is divided into high temperature epicoele and low temperature cavity of resorption by pass partition (4), described U-shaped heat exchanger tube (8) is arranged on tube sheet (7) upward and is communicated with high temperature epicoele and the low temperature cavity of resorption of bobbin carriage (2) respectively, the inlet end of described high temperature epicoele is communicated with the reaction gas entrance (B1) that is arranged on bobbin carriage (2) top, and the outlet side of low temperature cavity of resorption is communicated with the reaction gas outlet (B2) that is arranged on bobbin carriage (2) bottom; Be provided with refractory heat-insulating lining (3) above the outside of the inwall of described bobbin carriage (2), tube sheet (7) and the pass partition (4), also be provided with for the heat-resisting protective cover (5) that supports refractory heat-insulating lining (3) on described refractory heat-insulating lining (3) and the face that high temperature epicoele and low temperature cavity of resorption contact.
2. the reaction heat retracting device of coal preparing natural gas according to claim 1, it is characterized in that: also be provided with the water-cooling jacket (1) for cooling bobbin carriage (2) on the outer wall of described bobbin carriage (2), the lower end of described bobbin carriage (2) outer wall is provided with the cooling water inlet (A1) that is communicated with water-cooling jacket, and the top of bobbin carriage outer wall is provided with the coolant outlet (A2) that is communicated with water-cooling jacket.
3. the reaction heat retracting device of coal preparing natural gas according to claim 1, it is characterized in that: described U-shaped heat exchanger tube (8) inside that is positioned at tube sheet (7) is provided with the thermal sleeve (6) for the protection of tube sheet (7).
4. the reaction heat retracting device of coal preparing natural gas according to claim 1, it is characterized in that: the top of described housing (9) is provided with the gauge port E1 for the setting pressure table; The bottom of housing (9) is provided with the sewage draining exit (H) for the discharging dirt; The end that housing (9) is relative with tube sheet (7) is provided with for the thermometer boss (G) that thermometer is installed with for the liquid level gauge mouth D1 that liquid level sensor and liquid level gauge are installed.
5. the reaction heat retracting device of coal preparing natural gas according to claim 1, it is characterized in that: the top of described drum (10) is provided with safety valve (11), is provided with for the gauge port E2 of setting pressure table on the sidewall of drum and is used for the steam (vapor) outlet (C2) of released vapour; Be provided with on the sidewall of drum bottom for the liquid level gauge mouth D2 that liquid level sensor and liquid level gauge are installed.
6. the reaction heat retracting device of coal preparing natural gas according to claim 5, it is characterized in that: described steam (vapor) outlet (C2) locates to be provided with steam-water separator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220366131 CN202719583U (en) | 2012-07-27 | 2012-07-27 | Reaction heat recovery device of coal-derived natural gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220366131 CN202719583U (en) | 2012-07-27 | 2012-07-27 | Reaction heat recovery device of coal-derived natural gas |
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| Publication Number | Publication Date |
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| CN202719583U true CN202719583U (en) | 2013-02-06 |
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ID=47621406
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220366131 Expired - Fee Related CN202719583U (en) | 2012-07-27 | 2012-07-27 | Reaction heat recovery device of coal-derived natural gas |
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| CN (1) | CN202719583U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103574568A (en) * | 2012-07-27 | 2014-02-12 | 石家庄工大化工设备有限公司 | Substitute natural gas reaction heat recovery device |
| CN105408686A (en) * | 2013-08-29 | 2016-03-16 | 卡萨尔公司 | Shell-and-tube apparatus for heat recovery from hot process stream |
| CN113623627A (en) * | 2021-09-14 | 2021-11-09 | 西安热工研究院有限公司 | Steam generation device and method adapting to load change |
-
2012
- 2012-07-27 CN CN 201220366131 patent/CN202719583U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103574568A (en) * | 2012-07-27 | 2014-02-12 | 石家庄工大化工设备有限公司 | Substitute natural gas reaction heat recovery device |
| CN103574568B (en) * | 2012-07-27 | 2016-03-02 | 石家庄工大化工设备有限公司 | The reaction heat retracting device of coal preparing natural gas |
| CN105408686A (en) * | 2013-08-29 | 2016-03-16 | 卡萨尔公司 | Shell-and-tube apparatus for heat recovery from hot process stream |
| CN105408686B (en) * | 2013-08-29 | 2017-05-03 | 卡萨尔公司 | Shell-and-tube apparatus for heat recovery from hot process stream |
| CN113623627A (en) * | 2021-09-14 | 2021-11-09 | 西安热工研究院有限公司 | Steam generation device and method adapting to load change |
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Granted publication date: 20130206 Termination date: 20150727 |
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