CN210892792U - Be used for oil gas field flue gas condensation heat recovery system - Google Patents
Be used for oil gas field flue gas condensation heat recovery system Download PDFInfo
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- CN210892792U CN210892792U CN201920973382.4U CN201920973382U CN210892792U CN 210892792 U CN210892792 U CN 210892792U CN 201920973382 U CN201920973382 U CN 201920973382U CN 210892792 U CN210892792 U CN 210892792U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/52—Heat recovery pumps, i.e. heat pump based systems or units able to transfer the thermal energy from one area of the premises or part of the facilities to a different one, improving the overall efficiency
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/30—Technologies for a more efficient combustion or heat usage
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Abstract
The utility model provides a be used for oil gas field flue gas condensation heat recovery system, including flue gas condensation recovery unit, low temperature type heat pump set, flue gas pipeline, working medium water pipeling and circulating water pump, flue gas and working medium water pass through respectively flue gas pipeline, working medium water pipeling communicate with flue gas condensation recovery unit in order to carry out the coupling heat transfer, and the working medium water after the heating is connected through working medium water pipeling and is got into low temperature type heat pump set and heat up, and the working medium water after the heating up is delivered to the heat supply of customer end through the circulating water pump; and the cooled working medium water enters the flue gas condensation recovery device for internal circulation. Oil gas field flue gas condensation heat recovery system, retrieve the latent heat of vaporization in gas heating furnace, gas boiler or the gas generating set flue gas, eliminate and discharge fume in "white cigarette" phenomenon to heat up the heat of retrieving once more through the heat pump, reach the purpose that the heating dimension was warm, retrieved the heat promptly, reduced energy resource consumption again.
Description
Technical Field
The utility model relates to an energy recovery utilizes technical field, in particular to is used for oil gas field flue gas condensation heat recovery system.
Background
In the development and production processes of oil and gas fields, a large number of gas heating furnaces, gas boilers or gas generator sets are used for providing heat for the processes of oil and gas exploitation, gathering, transportation, treatment and the like. The equipment is operated to burn fuel gas to generate a large amount of water, along with the emission of flue gas, in order to reduce the heat loss of the flue gas, a flue gas recovery device is generally added, but after the waste heat of the flue gas is recovered, a large amount of white smoke is generated after the temperature of the flue gas is reduced, a chimney can be corroded, in addition, the water vapor in the flue gas contains a large amount of latent heat of vaporization, and if the part of heat energy is recovered and is combined with a low-temperature heat pump, a large amount of energy.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at providing a be used for oil gas field flue gas condensation heat recovery system to reduce water content in the flue gas, retrieve latent heat of vaporization wherein, adopt low temperature type heat pump to improve recovery heat temperature simultaneously, reduce energy resource consumption.
In order to achieve the above purpose, the technical scheme of the utility model is realized like this:
a flue gas condensation heat energy recovery system for an oil and gas field comprises a flue gas condensation recovery device, a low-temperature heat pump unit, a flue gas pipeline, a working medium water pipeline and a circulating water pump, wherein flue gas and working medium water are respectively communicated with the flue gas condensation recovery device through the flue gas pipeline and the working medium water pipeline to perform coupling heat exchange, heated working medium water is connected into the low-temperature heat pump unit through the working medium water pipeline, and heated working medium water is conveyed to a client through the circulating water pump; the cooled working medium water enters the flue gas condensation recovery device for internal circulation.
Further, the flue gas comes from any one of a gas heating furnace, a gas boiler or a gas generator set.
Further, the system also comprises a residual heat water collecting device and a residual heat water pump which are connected, wherein the residual heat water collecting device and the residual heat water pump are arranged between the flue gas condensation and recovery device and the low-temperature heat pump unit.
Furthermore, the waste heat water collecting device is a normal-pressure water storage device and made of corrosion-resistant materials, and an acid-base balance regulating and controlling assembly is arranged on the waste heat water collecting device and used for regulating the acid-base balance of the working medium water according to working conditions.
Furthermore, a condensate water recovery device is arranged on the flue gas condensation recovery device, and the condensate water recovery device is connected with the residual heat water collecting device through a condensate water recovery pipe.
Furthermore, the flue gas condensation recovery device is made of stainless steel corrosion-resistant materials, and is any one of a ribbed pipe flue gas condensation recovery device, a pin pipe flue gas condensation recovery device and a fin pipe flue gas condensation recovery device.
Furthermore, the system also comprises a PLC automatic control system and a temperature and pressure monitoring device, wherein the PLC automatic control system is connected with the waste heat water pump, the low-temperature heat pump unit and the temperature and pressure monitoring device, and the temperature and pressure monitoring device can monitor the temperature of the flue gas and the working medium water in real time and feed back the temperature to the PLC automatic control system to ensure the normal operation of the system.
Compared with the prior art, a be used for oil gas field flue gas condensation heat recovery system have following advantage:
(1) eliminating white fog of smoke discharged by a gas heating furnace, a gas boiler or a gas generator set of an oil and gas field, recovering latent heat of vaporization and recovering moisture in smoke.
(2) The low-temperature heat pump is adopted to raise the recovered heat to the temperature meeting the heat supply requirement, and the fuel consumption is reduced.
Drawings
The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:
fig. 1 is a schematic diagram of a flue gas condensation heat recovery system for oil and gas field.
Description of reference numerals:
1-flue gas pipeline, 101-smoke inlet pipe, 102-smoke exhaust pipe, 2-flue gas condensation recovery device, 3-working medium water pipeline, 301-medium temperature water preheating pipe, 302-low temperature waste heat water pipe, 4-condensate water recovery pipe, 5-waste heat water collection device, 6-waste heat water pump, 7-low temperature heat pump unit, 8-circulating water pump, 9-client, 10-waste heat water external discharge pipe, 11-temperature pressure monitoring device and 12-PLC automatic control system
Detailed Description
It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
Example 1
A kind of oil gas field flue gas condenses the heat recovery system, including the flue gas condenses the recovery unit 2, low-temperature heat pump unit 7, flue gas pipeline 1, working medium water pipe 3 and circulating water pump 8, surplus hot water collecting device 5, flue gas and working medium water enter the flue gas condenses the recovery unit 2 to couple and exchange heat through said flue gas pipeline 1, working medium water pipe 3 separately, the working medium water after heating enters the low-temperature heat pump unit 7 to raise the temperature through the working medium water pipe 3, the working medium water that the second temperature-raising passes the circulating water pump 8 in order to heat; the cooled working medium water enters the flue gas condensation and recovery device 2 again for circulation; meanwhile, the cooled flue gas is discharged after being treated to reach the standard.
The flue gas pipeline 1 comprises a flue gas inlet pipe 101 and a flue gas outlet pipe 102, and the flue gas inlet pipe 101 and the flue gas outlet pipe 102 are respectively positioned at the inlet end and the outlet end of the flue gas condensation and recovery device 2. The inlet end of the smoke inlet pipe 101 can be connected with the outlet end of any one of a gas heating furnace, a gas boiler or a gas generator set. Preferably, the inlet end of the smoke inlet pipe 1 is connected with the smoke outlet end of the gas generator set. As an example of the utility model, the exit end of the smoke exhaust pipe 2 is connected with the smoke treatment device, and the cooled smoke is treated and then discharged after reaching the standard.
The flue gas condensation recovery device 2 is provided with a working medium water pipeline 3 and a condensate recovery device, the condensate recovery device is connected with a waste heat water collecting device 5 through a condensate recovery pipe 4, and the buffer capacity of the system for the water quantity demand of the working medium water can be improved by arranging the waste heat water collecting device 5. After flue gas and working medium water heat transfer in flue gas condensation recovery unit 2, the vapor in the flue gas liquefies into water after cooling down, keeps in getting into condensate recovery unit, opens condensate recovery pipe 4 as required and carries the comdenstion water that produces to in surplus hot water collection device 5 to realize the recycle to moisture in the high temperature flue gas. As an example of the present invention, the flue gas condensation and recovery device 2 is made of stainless steel corrosion-resistant material; the flue gas condensation recovery device 2 can adopt any one of a ribbed pipe flue gas condensation recovery device, a pin pipe flue gas condensation recovery device and a fin pipe flue gas condensation recovery device. Preferably, the flue gas condensation and recovery device 2 is a finned tube flue gas condensation and recovery device.
The working medium water pipeline 3 comprises a medium-temperature water preheating pipe 301 and a low-temperature waste heat water pipe 302, the medium-temperature water preheating pipe 301 is used for connecting the flue gas condensation recovery device 2, the waste heat water collection device 5 and the low-temperature heat pump unit 7, and the low-temperature waste heat water pipe 302 is used for conveying low-temperature waste heat water generated by the low-temperature heat pump unit 7 to the flue gas condensation recovery device 2 again for recycling. As an example of the present invention, the low-temperature waste heat water pipe 302 is further provided with a waste heat water external pipe 10, and the low-temperature waste heat water generated by the low-temperature heat pump unit 7 can be discharged through the waste heat water external pipe 10 or can be recycled by entering the flue gas condensation recycling device 2 again through the low-temperature waste heat water pipe 302 as required. Meanwhile, the hot water heated by the low-temperature heat pump unit 7 is supplied to the client 9, and the client 9 comprises industrial hot water units such as residential users, waste heat boilers, high-temperature steam generation equipment and the like.
As an example of the present invention, the system further includes a waste heat water pump 6 connected to the waste heat water collecting device 5, the waste heat water pump 6 is disposed between the waste heat water collecting device 5 and the low temperature heat pump unit 7, so as to adjust the flow rate of the waste heat water as required. Surplus hot water collection device 5 adopts corrosion-resistant material for ordinary pressure water storage equipment, as the utility model discloses an example, be equipped with acid-base balance regulation and control subassembly on the surplus hot water collection device 5, adjust the acid-base balance of working medium water according to the operating mode.
As an example of the present invention, the system further includes a PLC automatic control system 12 and a temperature and pressure monitoring device 11, the PLC automatic control system 12 is respectively connected to the waste heat water pump 6, the low-temperature heat pump unit 7 and the temperature and pressure monitoring device 11, and the temperature and pressure monitoring device 11 can monitor the temperatures of the flue gas and the working fluid in real time and feed back the temperatures to the PLC automatic control system 12 to ensure the normal operation of the system.
Through heat recovery in flue gas condensation recovery unit 2 with gas heating furnace, gas boiler or gas generating set flue gas, medium temperature waste heat water enters into waste heat water collection device 5 through working medium water pipeling 3, the flue gas comdenstion water can be according to entering into waste heat water collection device 5 through comdenstion water recovery pipe 4, medium temperature waste heat water in the waste heat water collection device 5 can further enter into low temperature type heat pump set 7 through waste heat pump 6, heat up with working medium water secondary through low temperature type heat pump set 7 and use for customer end 9. After the medium-temperature residual hot water passes through the low-temperature heat pump unit 7, the heat is sent out, part of the medium-temperature residual hot water is changed into low-temperature residual hot water, part of the low-temperature residual hot water can be discharged through the residual hot water outer discharge pipe 10 according to needs, and the residual low-temperature residual hot water enters the flue gas condensation recovery device 2 again for recycling.
Example 2
The utility model provides an oil gas field flue gas condensation heat recovery system, includes flue gas condensation recovery unit 2, surplus hot water collection device 5, surplus hot water pump 6, low temperature type heat pump unit 7, circulating water pump 8, condensation recovery unit 2 is connected with surplus hot water collection device 5 through middle temperature surplus hot water pipe 301, condensate water recovery pipe 4, and the middle temperature surplus hot water that will collect is in sending to low temperature type heat pump unit 7 through surplus hot water pump 6, and low temperature type heat pump unit 7 carries the temperature back and provides heating maintenance temperature for customer end 9 through circulating water pump 8, and low temperature surplus hot water after the recovery heat is sending flue gas condensation recovery unit 2 to continue the heat absorption operation through low temperature surplus hot water pipe 302.
The utility model discloses oil gas field flue gas condensation heat recovery system is to gas heating furnace, gas boiler or gas generating set flue gas condensation heat recovery process:
(1) the heat energy and the latent heat of vaporization carried in the flue gas are recovered through the flue gas condensation recovery device 2, the condensed water is recovered and is collected into the residual heat water collection device 5 together, the heat is supplied to the low-temperature heat pump unit 7 through the residual heat water pump 6, the residual heat water quantity is adjusted through adjusting the switch of the residual heat water external discharge pipe 10 according to the flue gas temperature and the load, and the temperature entering the low-temperature heat pump unit 7 is balanced. The system adopts temperature pressure and liquid level monitoring, and the whole running process of the PLC is completed.
(2) After the heat is absorbed by the low-temperature heat pump unit 7 in the step (1), the temperature of the heating temperature maintaining water is increased to 50-60 ℃ through energy supplement, and the heating temperature maintaining water is sent to the client 9 through the circulating water pump 8, so that the heating temperature maintaining water is provided for users. Can save a large amount of fuel and reduce the production cost.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The system for recovering the heat energy of the flue gas condensation in the oil-gas field is characterized by comprising a flue gas condensation recovery device (2), a low-temperature heat pump unit (7), a flue gas pipeline (1), a working medium water pipeline (3) and a circulating water pump (8), wherein the flue gas and the working medium water are respectively communicated with the flue gas condensation recovery device (2) through the flue gas pipeline (1) and the working medium water pipeline (3) to perform coupling heat exchange, the heated working medium water is connected into the low-temperature heat pump unit (7) through the working medium water pipeline (3), and the heated working medium water is conveyed to a client (9) through the circulating water pump (8) to supply heat; the cooled working medium water enters the flue gas condensation recovery device (2) for internal circulation.
2. The oil and gas field flue gas condensation heat energy recovery system of claim 1, wherein the flue gas is from any one of a gas heating furnace, a gas boiler or a gas generator set.
3. The system for recovering the heat energy by condensing the flue gas in the oil and gas field according to the claim 1, further comprising a residual heat water collecting device (5) and a residual heat water pump (6) which are connected, wherein the residual heat water collecting device (5) and the residual heat water pump (6) are arranged between the flue gas condensing and recovering device (2) and the low-temperature heat pump unit (7).
4. The oil and gas field flue gas condensation heat energy recovery system according to claim 3, wherein the waste heat water collection device (5) is a normal pressure water storage device made of corrosion-resistant materials, and an acid-base balance regulation and control assembly is arranged on the waste heat water collection device (5).
5. The oil and gas field flue gas condensation heat energy recovery system according to claim 1 or 3, characterized in that a condensate water recovery device is arranged on the flue gas condensation recovery device (2), and the condensate water recovery device is connected with the residual heat water collection device (5) through a condensate water recovery pipe (4).
6. The oil and gas field flue gas condensation heat energy recovery system according to claim 1 or 3, wherein the flue gas condensation recovery device (2) is made of stainless steel corrosion-resistant material, and the flue gas condensation recovery device (2) is any one of a ribbed pipe flue gas condensation recovery device, a pin pipe flue gas condensation recovery device and a fin pipe flue gas condensation recovery device.
7. The system for recovering the heat energy of the flue gas condensation in the oil and gas field as claimed in claim 1, wherein the system further comprises a PLC automatic control system (12) and a temperature and pressure monitoring device (11), the PLC automatic control system (12) is respectively connected with the waste heat water pump (6), the low-temperature heat pump unit (7) and the temperature and pressure monitoring device (11), and the temperature and pressure monitoring device (11) can monitor the temperature of the flue gas and the working fluid in real time and feed back the temperature to the PLC automatic control system (12) to ensure the normal operation of the system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920973382.4U CN210892792U (en) | 2019-06-26 | 2019-06-26 | Be used for oil gas field flue gas condensation heat recovery system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920973382.4U CN210892792U (en) | 2019-06-26 | 2019-06-26 | Be used for oil gas field flue gas condensation heat recovery system |
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| Publication Number | Publication Date |
|---|---|
| CN210892792U true CN210892792U (en) | 2020-06-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920973382.4U Active CN210892792U (en) | 2019-06-26 | 2019-06-26 | Be used for oil gas field flue gas condensation heat recovery system |
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| Country | Link |
|---|---|
| CN (1) | CN210892792U (en) |
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2019
- 2019-06-26 CN CN201920973382.4U patent/CN210892792U/en active Active
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