CN201463274U - Heat exchange strengthening device for indirect medium heating furnace - Google Patents
Heat exchange strengthening device for indirect medium heating furnace Download PDFInfo
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- CN201463274U CN201463274U CN200920105581XU CN200920105581U CN201463274U CN 201463274 U CN201463274 U CN 201463274U CN 200920105581X U CN200920105581X U CN 200920105581XU CN 200920105581 U CN200920105581 U CN 200920105581U CN 201463274 U CN201463274 U CN 201463274U
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Abstract
The utility model relates to a heat exchange strengthening device for an indirect medium heating furnace. The device comprises a fuel gas decoupling chamber, an air decoupling chamber, a start-up sweeping blower, a thermoacoustic coupling pulse combustor, a manometer or a vacuum meter, a non-condensable gas exhaustion device, a rigid coupling piece, a coil pipe, a shell and a smoke exhaust pipe, and the thermoacoustic coupling pulse combustor comprises an air one-way valve, a fuel gas one-way valve, a fuel gas injection nozzle, a combustion chamber, a tail pipe and an exhaustion decoupling chamber. The method is as follows: the combustion chamber and the smoke pipe adopt a heat exchange mode of gas pulsation to eliminate the flue gas flow boundary layer on the chamber wall and the smoke pipe wall, thereby improving the convective heat transfer coefficient on the flue gas side, and reducing the heat exchange area; and the heat exchange between the indirect heat transfer medium (water) and a heated fluid coil pipe forms a stable heat exchange mode of dropwise coagulation via the mechanical vibration of the coil pipe, thereby improving the convective heat transfer coefficient of the indirect heat transfer medium (water) and the heated fluid coil pipe, and reducing the heat exchange area.
Description
(1) technical field
The utility model relates to a kind of indirect medium heating furnace heat exchange intensifying device, is mainly used in the oil field gathering and transportation engineering, also can be applied to field of boilers and other civilian heater.
(2) background technology
Crude oil, natural gas transport great majority adopt water jacket furnace, the characteristics of water jacket furnace are that indirect heat exchange medium-water is at first heated in the burning heat release, then water again heat transferred under water be heated fluid, the benefit of doing like this is avoid flame directly the to add hot fluid fluid over-temp and over-pressure that is caused, the danger that flue gas corrosion is blasted.A kind of type of furnace that adopts indirect medium mode of heating of water jacket furnace, its main heat exchange element is combustion chamber and smoke pipe, be heated the fluid coil pipe, these heat exchange elements all immerse in the water, carry out exchange heat by water, concrete heat transfer process is as follows: fuel combustion is passed to combustion chamber and smoke pipe inwall by convection current and radiation with heat, the process that heat is passed to outer wall by combustion chamber and smoke pipe inwall is heat conduction, combustion chamber and smoke pipe outer wall are passed to heat transfer medium (water) with heat by convection current and radiation, and this is first link of conducting heat; Second link of conducting heat, heat transfer medium (water) is passed to heat by heat transfer free convection and is heated fluid coil pipe outer wall, the process that heat is passed to inwall by the coil pipe outer wall is heat conduction, and the coil pipe inwall is passed to heat and is heated fluid by forced convection, finish whole diabatic process.
More than indirectly the medium diabatic process have two heat transfer stages directly to influence overall heat transfer efficient, and then influence the size of heat exchange area.
First heat transfer link is the heat convection of fume side in combustion chamber and the smoke pipe, owing to have hot boundary-layer between flue gas and inside pipe wall face, cause the convection transfer rate of fume side very little, for the liberated heat that will burn is all passed to heat transfer medium (water), certainly will to increase heat exchange area, promptly increase the quantity of combustion chamber and smoke pipe.Even adopt to improve measures such as flue gas flow rate, its convection transfer rate increase is also quite limited, increases flue gas flow rate in addition will adopt means such as forced-air blast and air inducing, causes reheat furnace system complexity, extra consume electric power, fault rate high.
Second heat transfer link is heat transfer medium (water) and is heated heat convection between the fluid coil pipe outer wall, since in the body of heater heat transfer medium (water) only when heating because density contrast produces free convection, therefore its convection transfer rate is very low, be heated the forced-convection heat transfer coefficient of fluid in the coil pipe, for all being passed to, the heat of heat transfer medium (water) is heated fluid, need enough heat exchange areas, promptly enough coil lengths.
Extensively adopt the phase-change heat-exchange technology at this link heat transfer problem, but these phase-change heat-exchange methods and technological means all belong to the film condensation heat transfer scope, because dielectric gas more easily forms liquid film when the coil pipe outer wall condenses, the gasification latent heat that discharges when condensing has only by the liquid rete could carry out heat exchange with the coil pipe outside wall surface, and rete becomes the main thermal resistance of condensation heat transfer.Have only the liquid film layer of destruction to form dropwise condensation, steam is directly contacted with the coil pipe wall, could improve the coefficient of heat transfer.
By above analysis as can be seen,, just can greatly reduce combustion chamber, smoke pipe, coil pipe quantity, reduce the heating furnace volume, reduce the heating furnace steel quantity consumption if improve the convection transfer rate in above two stages of conducting heat.The utility model is exactly the new method at above two the stage institute's utility models of conducting heat, and the heating furnace volume is dwindled, and steel quantity consumption reduces.
(3) utility model content
The purpose of this utility model is to provide a kind of indirect medium heating furnace heat exchange intensifying device.
A kind of indirect medium heating furnace heat exchange intensifying device of the utility model, its technical scheme is: by combustion gas decoupling chamber, air decoupling chamber, startup purging motor, hot acoustical coupling pulsating combusting device, Pressure gauge or vacuum meter, the fixed gas exhaust apparatus, rigid connector, coil pipe, shell and smoke exhaust pipe are formed. and wherein, described hot acoustical coupling pulsating combusting device and coil pipe are installed in the shell, connect in shell by rigid connector between hot acoustical coupling pulsating combusting device and the coil pipe; Shell one end is installed air decoupling chamber, starts purging motor and communicates with air decoupling chamber, and be fixed on the shell, and combustion gas decoupling chamber is installed in the air decoupling chamber; The shell other end is installed smoke exhaust pipe, communicates with hot acoustical coupling pulsating combusting device; Pressure gauge or vacuum meter and fixed gas exhaust apparatus are installed in the highest point of shell, and communicate with shell.
A kind of indirect medium heating furnace heat exchange intensifying device, it is characterized in that: be by combustion gas decoupling chamber, air decoupling chamber, start purging motor, hot acoustical coupling pulsating combusting device, Pressure gauge or vacuum meter, fixed gas exhaust apparatus, rigid connector, coil pipe, shell and smoke exhaust pipe are formed; This device adopts split-type structural, shell is divided into upper and lower two cylindrical shells independently, upper and lower cylindrical shell connects by many tubules, hot acoustical coupling pulsating combusting device is installed in the lower shell is only produced steam and only make condensation heat transfer usefulness with installation coil pipe in, the upper shell, hot acoustical coupling pulsating combusting device is connected by rigid connector with coil pipe; Shell lower shell one end is installed air decoupling chamber, starts purging motor and communicates with air decoupling chamber, and be fixed on the shell lower shell, and combustion gas decoupling chamber is installed in the air decoupling chamber; The shell lower shell other end is installed smoke exhaust pipe, communicates with hot acoustical coupling pulsating combusting device; Pressure gauge or vacuum meter and fixed gas exhaust apparatus are installed in the highest point of shell upper shell, and communicate with shell.
Wherein, described hot acoustical coupling pulsating combusting device is made up of one or more air check valve, the one or more gas nozzles of one or more combustion gas check valves, combustion chamber, one or more thinner tail pipe and an exhaust decoupling chamber; The combustion gas check valve is installed in an end of combustion chamber, communicates with the combustion chamber; Gas nozzle is connected with the combustion gas check valve in the combustion chamber; Air check valve is installed in top of combustion chamber and communicates with the combustion chamber; The other end of combustion chamber links to each other with an end of tail pipe, and the two communicates; The other end of tail pipe connects exhaust decoupling chamber, and communicates with it.
Wherein, described tail pipe can be crooked arbitrarily as required.
Wherein, adopt hot acoustical coupling pulsating combusting device to replace traditional fire tube, smoke pipe in the shell, hot acoustical coupling pulsating combusting device is a burner, is again heat exchanger.
Wherein, adopt between described hot acoustical coupling pulsating combusting device and heat exchange coil to be rigidly connected, rigid connector places in the furnace shell.
Wherein, described heating furnace the top is equipped with the fixed gas exhaust apparatus.
A kind of indirect medium heating furnace heat exchange intensifying method, be combustion system, fire tube and the smoke pipe system that changes existing water jacket furnace, replacement is with hot acoustical coupling pulsating combusting device, the pulse pneumatic of the certain frequency that hot acoustical coupling burning produces destroys hot boundary-layer in the combustion chamber, the convection transfer rate of fume side is improved nearly 10 times, therefore the hot acoustical coupling pulsating combusting device burner that both acted as a fuel, again as high-efficiency heat exchanger, burner, fire tube and three functions of components of smoke pipe of traditional heating stove are integrated, have saved the fire tube and the smoke pipe of traditional heating stove.Hot acoustical coupling pulsating combusting device mainly is made up of parts such as combustion chamber, air check valve, combustion gas check valve, nozzle, tail pipe, decoupling chamber, smoke exhaust pipes, make inner acoustic characteristic of burner itself and fuel combustion exothermic character produce coupling by pulsation supply air and fuel, form the vertical pulse pneumatic of low frequency of burner inside, destroy the boundary-layer between combustion gas and the burner inner wall face, strengthen combustion gas side heat convection.
A kind of indirect medium heating furnace heat exchange intensifying method, its technical scheme is, hot acoustical coupling pulsating combusting device is immersed in below the indirect medium liquid level in the drum, coil pipe is positioned at the liquid level top, technical method by negative pressure or pressure phase transformation, make and produce the phase-change heat-exchange that condenses between heated medium steam and coil pipe outer wall. for avoiding the formation that the coil pipe outer wall condenses liquid film in the phase-change heat-exchange process, utilize hot acoustical coupling pulsating combusting device when producing pulse pneumatic, can cause the characteristics of itself mechanical oscillation, to connect by rigid structure between pulsating combusting device and the coil pipe, make coil pipe produce the milli machine vibration, cause the liquid film of coil pipe outer wall can not stable existence, the change film condensation heat transfer is dropwise condensation heat transfer, improve convection transfer rate, practice shows, more than the 5-10 when the dropwise condensation heat transfer coefficient can reach film condensation times. reduce coil pipe quantity and length, dwindle the heating furnace volume, reduce the heating furnace steel quantity consumption.
Wherein, adopt hot acoustical coupling intermittent combustion mode, the self-pulsating that the flue gas miscarriage is given birth in the burner improves the fume side convection transfer rate.
Wherein, the mechanical oscillation that hot acoustical coupling pulsating combusting device itself produces pass to coil pipe, make coil pipe produce the milli machine vibration.
Wherein, be not full of water in the stove, only fill part water, in the anhydrous upper space heat exchange coil is set, water is heated to seethe with excitement and produces steam, and the coil pipe wall heat exchange of steam and low temperature is condensed into water, with the working medium that flows in the heat transferred coil heat exchanger; Water after condensing continues to be heated vaporization, so moves in circles, and realizes condensation heat transfer.
The utility model relates to a kind of indirect medium heating furnace heat exchange intensifying device, have following beneficial effect: hot acoustical coupling intermittent combustion has the efficiency of combustion height, advantages such as pollutant emission is low, therefore adopt the utility model to replace traditional oil field heating furnace, as phase change heating furnace, water jacket furnace, pressure-fired stove etc., the thermal efficiency can increase substantially, and pollutant discharge amount reduces significantly, and energy-conservation low pollution effects is very obvious.Burner, fire tube, smoke pipe comprehensively are that parts, coil pipe quantity and length reduce in a large number, and the heat exchange element structure all adopts standard design, need not carry out any secondary operations, need not increase technological means such as enhanced heat exchange such as fin, do not need other any auxiliary device (as air blast, air-introduced machine etc.) and chimney, the heating furnace volume reduces significantly, and unit power consumption steel material also reduces significantly, and manufacturing cost reduces greatly.In addition, the utility model is easy to realize Automatic Control, and is safe and reliable to operation.
(4) description of drawings
Fig. 1: heating furnace embodiment ().
Fig. 2: heating furnace embodiment () A-A profile.
Fig. 3: hot acoustical coupling pulsating combusting device structural representation.
Fig. 4: heating furnace embodiment (two).
Fig. 5: heating furnace embodiment (two) B-B profile.
Number in the figure is described as follows:
1 combustion gas decoupling chamber, 2 air valve decoupling chamber, 3 start purging motor, 4 hot acoustical coupling pulsating combusting devices, 5 Pressure gauges or vacuum meter, 6 fixed gas exhaust apparatus, 7 rigid connectors, 8 coil pipes, 9 shells, 10 smoke exhaust pipes, 11 combustion gas check valves, 12 air check valve, 13 gas nozzles, 14 combustion chambers, 15 tail pipes, 16 exhaust decoupling chamber, shell tube connector about in the of 17
(5) specific embodiment:
Below in conjunction with drawings and Examples, the technical solution of the utility model is described further.
Embodiment of the present utility model (one) be oil-field brine blind roaster frame for movement part as shown in Figure 1 and Figure 2, heat transferring medium is a water, it is defeated outward to be used for heating in crude oil or natural gas, fuel is natural gas.Heating furnace by combustion gas decoupling chamber 1, air decoupling chamber 2, start purging motor 3, hot acoustical coupling pulsating combusting device 4, Pressure gauge or vacuum meter 5, fixed gas exhaust apparatus 6, rigid connector 7, coil pipe 8, shell 9 and smoke exhaust pipe 10 are formed.
Annexation is as follows: hot acoustical coupling pulsating combusting device 4 and coil pipe 8 are installed in the shell 9, connecting in shell 9 by rigid connector 7 between hot acoustical coupling pulsating combusting device 4 and the coil pipe 8. shell 9 one ends are installed air decoupling chamber 2, starting purging motor 3 communicates with air decoupling chamber 2, and be fixed on the shell (9), combustion gas decoupling chamber 1 is installed in the air decoupling chamber 2; Shell 9 other ends are installed smoke exhaust pipe 10, communicate with hot acoustical coupling pulsating combusting device 4. and Pressure gauge or vacuum meter 5 and fixed gas exhaust apparatus 6 are installed in the highest point of shell 9, and communicate with shell.
Hot acoustical coupling pulsating combusting device 4 is made up of combustion gas check valve 11, air check valve 12, gas nozzle 13, combustion chamber 14, tail pipe 15 and exhaust decoupling chamber 16 as shown in Figure 3.The combustion gas check valve is installed in an end of combustion chamber, communicates with the combustion chamber; Gas nozzle is connected with the combustion gas check valve in the combustion chamber; Air check valve is installed in top of combustion chamber and communicates with the combustion chamber; The other end of combustion chamber links to each other with an end of tail pipe, and the two communicates; The other end of tail pipe connects exhaust decoupling chamber, and communicates with it.
Heating furnace embodiment (one) course of work is as follows: combustion gas sprays into combustion chamber 13 through combustion gas check valve 11 by gas nozzle 11, after being lighted, combustion chamber 14 pressure raise, cause flue gas through many tail pipes 15, exhaust decoupling chamber 16 flows out, simultaneously because combustion chamber 14 pressure are higher than combustion gas incoming-flow pressure and atmospheric pressure, combustion gas check valve 11 and air check valve 12 are closed, stop to infeed combustion gas and air, because the inertial flow of flue gas in tail pipe 15, cause the pressure in the combustion chamber to reduce, be lower than combustion gas incoming-flow pressure and atmospheric pressure, combustion gas check valve 11 and air check valve 12 are opened, beginning infeeds combustion gas and air again, high-temperature flue gas after combustion gas and the air blending in the burned chamber 15 is lighted, repeat a course of work, such process repeats 20-100 time (frequency is 20-100Hz) each second, because the periodically pulsing of combustion chamber 15 internal pressures causes the pulsation of flue gas stream periodic longitudinal to flow out, wash away the combustion chamber, tail pipe, the smoke exhaust pipe inwall, destroy inwall flue gas boundary-layer, improve the convection transfer rate of fume side, meanwhile pulsating combusting device 4 itself also can produce the periodic mechanical vibration of same frequency.Because pulsating combusting device 4 is connected by rigid connector 7 with coil pipe 8, coil pipe 8 also can produce periodic milli machine vibration.
Hot acoustical coupling pulsating combusting device 4 is with the water in the heat transferred shell 9, it is upwards mobile that water is subjected to thermal evaporation to become water vapour, when running into the coil pipe 8 that flows through crude oil or natural gas, the coil pipe outside wall temperature is lower than steam temperature, carry out condensation heat transfer between water vapour and the coil pipe 8, because the milli machine of coil pipe 8 vibration, make coil pipe 8 outer walls can't form the liquid film that steam condenses and forms, therefore can only produce dropwise condensation heat transfer, improved the convection transfer rate of coil pipe outer wall side widely, dropwise condensation heat transfer is with crude oil or natural gas in the heat transferred coil pipe 8, condensate water flows back to liquid level and continues to be subjected to thermal evaporation, water reciprocal evaporation and condensation above liquid level is finished whole diabatic process like this.
Crude oil or the requirement of natural gas heating-up temperature are depended in the selection of condensation heat transfer pressure condition, when crude oil or gas outlet heating-up temperature are lower than 100 ℃, can select the mode of negative pressure condensation heat transfer for use, negative pressure condensation heat transfer boiler belongs to normal-pressure boiler, safe, low cost of manufacture.Concrete way is: close all valves on the shell 9, start the burner heating, interior crude oil of coil pipe this moment or natural gas stop to carry, when treating that the shell internal pressure reaches certain value, open fixed gas exhaust apparatus 6, discharge the air in the shell 9, treat that air drains in the shell, pressure is during near setting value, close fixed gas exhaust apparatus 6, open crude oil or natural gas in the coil pipe this moment, saturated vapor is met the condensation cooling of cold back in the shell, and temperature in the shell is reduced in about 95 ℃, this process is equivalent to a constant volume heat release temperature-fall period, according to the thermophysical property of water vapour, must cause the reduction of shell internal pressure, vacuum meter 5 registrations maintain within the scope.
When crude oil or gas outlet heating-up temperature are higher than 100 ℃, can select the mode of pressure condensation heat transfer for use.Concrete way is: close all valves on the shell 9, start the burner heating, interior crude oil of coil pipe this moment or natural gas stop to carry, when treating that the shell internal pressure reaches certain value, open fixed gas exhaust apparatus 6, discharge the air in the shell 9, treat that air drains in the shell, pressure is near when setting value, close fixed gas exhaust apparatus 6, open crude oil or natural gas in the coil pipe this moment, saturated vapor is met the condensation cooling of cold back in the shell, temperature in the shell is reduced in about setting value, and Pressure gauge 5 registrations are kept within limits.
Embodiment of the present utility model (two) is as Fig. 3, shown in Figure 4, heating furnace is by combustion gas decoupling chamber 1, air decoupling chamber 2, start purging motor 3, hot acoustical coupling pulsating combusting device 4, Pressure gauge or vacuum meter 5, fixed gas exhaust apparatus 6, rigid connector 7, coil pipe 8, shell 9 and smoke exhaust pipe 10 are formed. be with the main distinction of heating furnace embodiment (), adopt split-type structural, shell 9 is divided into, following two cylindrical shells independently, on, lower shell connects by many tubules, 4 of hot acoustical coupling pulsating combusting devices are installed in the lower shell are made to produce steam usefulness, 8 in coil pipe is installed in the upper shell is made condensation heat transfer usefulness, pulsating combusting device 4 is connected by rigid connector 7 with coil pipe (8).
The course of work of heating furnace embodiment (two) is as follows: hot acoustical coupling pulsating combusting device 4 is with the water in heat transferred shell 9 lower shells, water is subjected to thermal evaporation to become water vapour by shell tube connector 17 is upwards mobile up and down, when shell 9 upper shells run into the coil pipe 8 that flows through crude oil or natural gas, the coil pipe outside wall temperature is lower than steam temperature, carry out condensation heat transfer between water vapour and the coil pipe 8, because the milli machine of coil pipe 8 vibration, make coil pipe 8 outer walls produce dropwise condensation heat transfer, with crude oil or the natural gas in the heat transferred coil pipe 8, reach design temperature and carry out outer defeated.Condensate water flows back to shell 9 lower shells by shell tube connector 17 up and down and continues to be subjected to thermal evaporation, and water is finished whole diabatic process at reciprocal evaporation and condensation between lower shell on the shell 9 like this.
Shell 9 lower shells are only relevant with power among the heating furnace embodiment (two), and with the irrelevant standarized component of user's working medium rerum natura, thereby only need the different demands that working medium heats to be designed, make special shell 9 upper shell heat exchangers according to the user, shell 9 lower shells with standard are assembled into one again, can greatly reduce the design work amount, shorten manufacturing schedule.Because both separate, can make both volume-diminished simultaneously, have the advantage of good pressure-bearing safe running performance and convenient transportation.
The automatic control system of heating furnace can be carried out with mutually deserved code requirement according to the technological requirement of heating furnace itself with other requirement, is not described in detail at this.
Claims (5)
1. indirect medium heating furnace heat exchange intensifying device, it is characterized in that: be by combustion gas decoupling chamber, air decoupling chamber, start purging motor, hot acoustical coupling pulsating combusting device, Pressure gauge or vacuum meter, fixed gas exhaust apparatus, rigid connector, coil pipe, shell and smoke exhaust pipe are formed; Wherein, described hot acoustical coupling pulsating combusting device and coil pipe are installed in the shell, connect in shell by rigid connector between hot acoustical coupling pulsating combusting device and the coil pipe; Shell one end is installed air decoupling chamber, starts purging motor and communicates with air decoupling chamber, and be fixed on the shell, and combustion gas decoupling chamber is installed in the air decoupling chamber; The shell other end is installed smoke exhaust pipe, communicates with hot acoustical coupling pulsating combusting device; Pressure gauge or vacuum meter and fixed gas exhaust apparatus are installed in the highest point of shell, and communicate with shell.
2. indirect medium heating furnace heat exchange intensifying device, it is characterized in that: be by combustion gas decoupling chamber, air decoupling chamber, start purging motor, hot acoustical coupling pulsating combusting device, Pressure gauge or vacuum meter, fixed gas exhaust apparatus, rigid connector, coil pipe, shell and smoke exhaust pipe are formed; This device adopts split-type structural, shell is divided into upper and lower two cylindrical shells independently, upper and lower cylindrical shell connects by many tubules, hot acoustical coupling pulsating combusting device is installed in the lower shell is only produced steam and only make condensation heat transfer usefulness with installation coil pipe in, the upper shell, hot acoustical coupling pulsating combusting device is connected by rigid connector with coil pipe; Shell lower shell one end is installed air decoupling chamber, starts purging motor and communicates with air decoupling chamber, and be fixed on the shell lower shell, and combustion gas decoupling chamber is installed in the air decoupling chamber; The shell lower shell other end is installed smoke exhaust pipe, communicates with hot acoustical coupling pulsating combusting device; Pressure gauge or vacuum meter and fixed gas exhaust apparatus are installed in the highest point of shell upper shell, and communicate with shell.
3. indirect medium heating furnace heat exchange intensifying device according to claim 1 and 2, it is characterized in that: described hot acoustical coupling pulsating combusting device, form by one or more air check valve, the one or more gas nozzles of one or more combustion gas check valves, combustion chamber, one or more thinner tail pipe and an exhaust decoupling chamber; The combustion gas check valve is installed in an end of combustion chamber, communicates with the combustion chamber; Gas nozzle is connected with the combustion gas check valve in the combustion chamber; Air check valve is installed in top of combustion chamber and communicates with the combustion chamber; The other end of combustion chamber links to each other with an end of tail pipe, and the two communicates; The other end of tail pipe connects exhaust decoupling chamber, and communicates with it.
4. indirect medium heating furnace heat exchange intensifying device according to claim 3 is characterized in that: described tail pipe can be crooked arbitrarily as required.
5. according to right 1 or 2 described indirect medium heating furnace heat exchange intensifying devices, it is characterized in that: adopt between described hot acoustical coupling pulsating combusting device and heat exchange coil to be rigidly connected, rigid connector places in the furnace shell.
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| Application Number | Priority Date | Filing Date | Title |
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| CN200920105581XU CN201463274U (en) | 2009-02-26 | 2009-02-26 | Heat exchange strengthening device for indirect medium heating furnace |
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| CN200920105581XU CN201463274U (en) | 2009-02-26 | 2009-02-26 | Heat exchange strengthening device for indirect medium heating furnace |
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| CN201463274U true CN201463274U (en) | 2010-05-12 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101487630B (en) * | 2009-02-26 | 2012-05-09 | 北京航空航天大学 | Heat-exchange intensification apparatus and method for indirect medium heating furnace |
| CN107965750A (en) * | 2017-11-28 | 2018-04-27 | 崔秀萍 | A kind of steam-heating system and its method |
| CN110701011A (en) * | 2018-07-09 | 2020-01-17 | 中国科学院理化技术研究所 | Thermoacoustic engine and thermoacoustic heating method |
| CN114413475A (en) * | 2022-01-27 | 2022-04-29 | 松山湖材料实验室 | Oil field heating furnace and method for heating crude oil |
-
2009
- 2009-02-26 CN CN200920105581XU patent/CN201463274U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101487630B (en) * | 2009-02-26 | 2012-05-09 | 北京航空航天大学 | Heat-exchange intensification apparatus and method for indirect medium heating furnace |
| CN107965750A (en) * | 2017-11-28 | 2018-04-27 | 崔秀萍 | A kind of steam-heating system and its method |
| CN107965750B (en) * | 2017-11-28 | 2019-05-17 | 临沂兴源热力有限公司 | A kind of steam-heating system and its method |
| CN110701011A (en) * | 2018-07-09 | 2020-01-17 | 中国科学院理化技术研究所 | Thermoacoustic engine and thermoacoustic heating method |
| CN110701011B (en) * | 2018-07-09 | 2021-10-29 | 中国科学院理化技术研究所 | Thermoacoustic engine |
| CN114413475A (en) * | 2022-01-27 | 2022-04-29 | 松山湖材料实验室 | Oil field heating furnace and method for heating crude oil |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20100512 Effective date of abandoning: 20090226 |