Integrated oil field oily sewage high-temperature water source heat pump machine room system

Abstract

The invention provides an integrated oil field oily sewage high-temperature water source heat pump machine room system. The system comprises an input heat exchanger, an oil-containing water source circulating pump, a first water source heat pump heat source water circulating pump, a first water source heat pump unit, a first and second water source heat pump heat source water series circulating pump, a second water source heat pump unit, a second water source heat pump hot water output circulating pump, an output heat exchanger and an oil-containing sewage heating circulating pump. The integrated oil field oily sewage high-temperature water source heat pump machine room system is innovatively constructed by adopting a method that two stages of water source heat pump units are connected in series to increase the water outlet temperature of a heat pump. A box-type machine room is used for replacing a civil engineering machine room, a conventional water source heat pump unit, heat exchanger equipment, water pump and water supplementing auxiliary equipment and power distribution complete equipment are processed and manufactured in a standardized mode by a factory through mechanical tool equipment, are assembled in the box-type machine room by technical workers of the factory, and leave a factory in a product mode after being debugged and operated normally.

Description

Technical Field

[0001] The present invention relates to the field of waste heat heating, and particularly to an integrated high-temperature water source heat pump machine room system for oily sewage in oilfields. Background Art

[0002] During the oilfield production process, oily sewage at 30 - 35°C is generated, which is an ideal waste heat water source for water source heat pumps. Oilfield production requires heating the oily sewage to about 80 - 90°C for the needs of the oil production process. However, existing water source heat pumps can only heat it to about 65°C, and the oily sewage in oilfields seriously corrodes metal materials. The evaporators and condensers of conventional water source heat pump units in the prior art cannot fulfill the above applications. To adapt to the corrosion of oily sewage in oilfields, the above-mentioned conventional evaporators and condensers are replaced with corrosion-resistant nickel alloy brass pipes instead of the original copper pipes to enhance the corrosion resistance of the heat exchanger to oily sewage in oilfields, forming non-standard water source heat pump unit products. However, the corrosion resistance years of nickel alloy brass pipes to oily sewage in oilfields are limited, and it results in high costs for water source heat pump units.

[0003] For the construction of existing heat pump machine room systems, most of them first carry out the civil construction of the machine room building. After the civil construction is completed, the purchased water source heat pump units, heat exchanger equipment, water pumps, make-up auxiliary equipment, and distribution cabinets are installed in the civil machine room. Not only is the procurement and construction cycle long, but the skills of the workers used in on-site construction vary greatly. Basically, they are installed manually with a hacksaw, and the project quality is difficult to control, and standardized construction cannot be achieved. The waste of raw materials is serious, the construction efficiency is low, resulting in high project costs. Summary of the Invention

[0004] The first object of the present invention is to provide an integrated high-temperature water source heat pump machine room system for oily sewage in oilfields, which can solve the problems existing in the prior art;

[0005] The present invention provides an integrated high-temperature water source heat pump machine room system for oily sewage in oilfields, which includes: an input heat exchanger, an oily sewage source circulation pump, a first water source heat pump heat source water circulation pump, a first water source heat pump unit, a first and a second water source heat pump heat source water series circulation pump, a second water source heat pump unit, a second water source heat pump hot water output circulation pump, an output heat exchanger, and an oily sewage heating circulation pump;

[0006] The primary side of the input heat exchanger is connected to the inlet of the oily sewage source circulation pump of the oily sewage source circulation pump through the outlet of the primary side of the input heat exchanger. The outlet of the oily sewage source circulation pump of the oily sewage source circulation pump is connected to the oily sewage source through an oily sewage connection pipe, and the inlet of the primary side of the input heat exchanger is connected to the oily sewage source through an oily sewage connection pipe;

[0007] The secondary side of the input heat exchanger is connected from the outlet of the secondary side of the input heat exchanger to the inlet of the first water source heat pump heat source water circulation pump of the first water source heat pump heat source water circulation pump. The outlet of the first water source heat pump heat source water circulation pump of the first water source heat pump heat source water circulation pump is connected to the first water source heat pump unit through the inlet of the first water source heat pump evaporator water source. The outlet of the first water source heat pump evaporator water source is connected to the input heat exchanger through the inlet of the secondary side of the input heat exchanger;

[0008] One end of the first and second water source heat pump heat source water series circulation pumps is connected to the hot water outlet of the first water source heat pump condenser through the inlet of the first and second water source heat pump heat source water series circulation pumps. The hot water inlet of the first water source heat pump condenser is connected to the outlet of the second water source heat pump evaporator water source. The inlet of the second water source heat pump evaporator water source is connected to the outlet of the first and second water source heat pump heat source water series circulation pumps; the first and second water source heat pump heat source water series circulation pumps connect the output end of the first water source heat pump unit in series with the input end of the second water source heat pump unit;

[0009] The hot water outlet of the second water source heat pump condenser of the second water source heat pump unit is connected to the inlet of the second water source heat pump hot water output circulation pump. The second water source heat pump hot water output circulation pump is connected to the hot water inlet of the primary side of the output heat exchanger through the outlet of the second water source heat pump hot water output circulation pump. The hot water outlet of the primary side of the output heat exchanger is connected to the hot water inlet of the second water source heat pump condenser;

[0010] The sewage input port of the secondary side of the output heat exchanger is connected to the oily sewage to be heated through the oily sewage heating circulation pipe. The oily sewage to be heated is connected to the outlet of the oily sewage heating circulation pump of the oily sewage heating circulation pump through the oily sewage heating circulation pipe. The inlet of the oily sewage heating circulation pump of the oily sewage heating circulation pump is connected to the sewage output port of the secondary side of the output heat exchanger.

[0011] Preferably, a power distribution cabinet is further included;

[0012] The power distribution cabinet is connected to the oily sewage source circulation pump, the first water source heat pump heat source water circulation pump, the first water source heat pump unit, the first and second water source heat pump heat source water series circulation pumps, the second water source heat pump unit, the second water source heat pump hot water output circulation pump and the oily sewage heating circulation pump through the required cables and supplies power to the devices connected thereto.

[0013] Preferably, a box-type machine room is further included;

[0014] The power distribution cabinet, the oily sewage source circulation pump, the first water source heat pump heat source water circulation pump, the first water source heat pump unit, the first and second water source heat pump heat source water series circulation pumps, the second water source heat pump unit, the second water source heat pump hot water output circulation pump, and the oily sewage heating circulation pump are installed and configured in the box-type machine room.

[0015] Preferably, it includes a power distribution remote transmission fire metering monitoring room;

[0016] The power distribution remote transmission fire metering monitoring room includes high and low voltage cable trays, high voltage power distribution cabinets, low voltage power distribution cabinets, automatic control cabinets, data remote transmission monitoring boxes, metering boxes, fire monitoring boxes, wiring hub cabinets, and a machine room panoramic browsing monitoring room.

[0017] Preferably, it includes: heating or hot water supply terminal equipment;

[0018] One end of the inlet of the heating or hot water supply terminal equipment of the heating or hot water supply terminal equipment is connected to the outlet of the second water source heat pump hot water output circulation pump, and the heating or hot water supply terminal equipment is connected to the hot water inlet of the second water source heat pump condenser through the outlet of the heating or hot water supply terminal equipment.

[0019] Preferably, it includes a first water source heat pump unit, a first water source heat pump heat source water circulation pump, an oily sewage connection pipe, and an oily sewage connection pipe;

[0020] The water source outlet of the first water source heat pump evaporator of the first water source heat pump unit is connected to the oily sewage source through the oily sewage connection pipe;

[0021] The water source inlet of the first water source heat pump evaporator of the first water source heat pump unit is connected to the outlet of the first water source heat pump heat source water circulation pump of the first water source heat pump heat source water circulation pump, and the inlet of the first water source heat pump heat source water circulation pump of the first water source heat pump heat source water circulation pump is connected to the oily sewage source through the oily sewage connection pipe.

[0022] Preferably, it includes single and double unit conversion valves, single and double unit conversion valves, single and double unit conversion valves, and single and double unit conversion valves;

[0023] One end of the single and double unit conversion valve is connected to the water source inlet of the second water source heat pump evaporator, and the other end is respectively connected to one end of the outlet of the second water source heat pump heat source water series circulation pump and the single and double unit conversion valve, and the other end of the single and double unit conversion valve is connected to the interface of the heating or hot water supply terminal equipment;

[0024] One end of the single / double unit conversion valve is connected to the water source outlet of the second water source heat pump evaporator, and the other end is respectively connected to the hot water inlet of the first water source heat pump condenser and one end of the single / double unit conversion valve. The other end of the single / double unit conversion valve is connected to the interface of the heating or hot water supply end equipment.

[0025] Preferably, it includes a first water source heat pump unit and a hot water output circulation pump for the first water source heat pump condenser;

[0026] The hot water inlet of the first water source heat pump condenser of the first water source heat pump unit is connected through the water inlet of the hot water output circulation pump for the first water source heat pump condenser;

[0027] The hot water output circulation pump for the first water source heat pump condenser is connected to the hot water inlet of the primary side of the output heat exchanger through the water outlet of the hot water output circulation pump for the first water source heat pump condenser, and the hot water outlet of the primary side of the output heat exchanger is connected to the hot water inlet of the first water source heat pump condenser.

[0028] Preferably, it includes: a first water source heat pump unit, a water source input circulation pump for the first water source heat pump evaporator, and a hot water output circulation pump for the first water source heat pump condenser;

[0029] The water inlet of the water source input circulation pump for the first water source heat pump evaporator of the water source input circulation pump for the first water source heat pump evaporator is connected to the oil-containing sewage connection pipe, and the oil-containing sewage connection pipe is connected to the oil-containing sewage source water inlet interface; the water outlet of the water source input circulation pump for the first water source heat pump evaporator is connected to the water source inlet of the first water source heat pump evaporator, and the water source outlet of the first water source heat pump evaporator is connected to the oil-containing sewage source water inlet interface through the oil-containing sewage connection pipe;

[0030] The hot water output circulation pump for the first water source heat pump condenser is connected through a pipeline to the water outlet of the hot water output circulation pump for a water source heat pump condenser; the water inlet of the hot water output circulation pump for the first water source heat pump condenser is connected to the hot water outlet of the first water source heat pump condenser, and the hot water inlet of the first water source heat pump condenser is connected to the oil-containing sewage heating water outlet interface.

[0031] Preferably, it includes: a wind power generation device and / or a photovoltaic power generation device and / or a wind-solar hybrid controller, a battery energy storage device, and an inverter;

[0032] The integrated oilfield oil-containing sewage high-temperature water source heat pump machine room system is powered by wind-solar power generation or grid-assisted power supply. The wind power generation device is connected to the wind-solar hybrid controller, the photovoltaic power generation device is connected to the wind-solar hybrid controller, the wind-solar hybrid controller is connected to the connected battery energy storage device, the battery energy storage device is connected to the inverter, and the inverter is connected to the power distribution cabinet.

[0033] Beneficial effects:

[0034] Drawing on the principles of electrical engineering, where two batteries connected in series increase the total voltage and in parallel increase the current, and the principle of thermodynamics, where series-connected boilers raise the total outlet water temperature while the pressure on each individual boiler remains unchanged, the present invention provides a method for connecting two-stage water source heat pump units in series to increase the outlet water temperature of the heat pump, and innovatively constructs an integrated high-temperature water source heat pump machine room system for oily sewage in oilfields. A box-type machine room is used to replace the civil engineering machine room. Conventional water source heat pump units, heat exchanger equipment, water pumps, make-up water auxiliary equipment, and complete power distribution equipment are standardized and manufactured by the factory using mechanical tooling equipment, assembled by factory technicians in the box-type machine room, and after being debugged and operated normally, are shipped out of the factory in the form of products. The integrated high-temperature water source heat pump machine room for oily sewage in oilfields is transported to the user site, and can be operated by connecting the power supply and pipelines. It not only has a strong replication rate, but also requires no maintenance and can achieve unattended operation. Through the after-sales service system with wireless remote transmission monitoring by full-time engineers in the factory, all data, faults, operation information, and treatment methods of the machine room are remotely transmitted to the user's mobile phone in real time, safeguarding the safe and reliable operation of the integrated high-temperature water source heat pump machine room for oily sewage in oilfields for the user. Brief Description of the Drawings

[0035] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0036] Appendix Figure 1 It is an embodiment of the sewage heating system of the integrated high-temperature water source heat pump for oily sewage in oilfields.

[0037] Appendix Figure 2 It is an embodiment of the power distribution device configuration of the integrated high-temperature water source heat pump system for oily sewage in oilfields.

[0038] Appendix Figure 3 It is an embodiment of the integrated high-temperature water source heat pump system for oily sewage in oilfields configured and installed in a box-type machine room.

[0039] Appendix Figure 4 It is an embodiment of the power distribution remote transmission fire monitoring and metering room configuration of the integrated high-temperature water source heat pump machine room for oily sewage in oilfields.

[0040] Appendix Figure 5 It is an embodiment of the integrated high-temperature water source heat pump system for oily sewage in oilfields for heating or supplying hot water.

[0041] Appendix Figure 6 It is an embodiment of the integrated high-temperature water source heat pump for oily sewage in oilfields for heating or supplying hot water.

[0042] Appendix Figure 7This is an embodiment of an integrated oilfield oily sewage high-temperature water source heat pump single and double units that can be switched for heating or hot water supply.

[0043] Appendix Figure 8 This is an embodiment of an integrated oilfield oily sewage high-temperature water source heat pump single unit sewage heating system.

[0044] Appendix Figure 9 This is an embodiment of an integrated oilfield oily sewage high-temperature water source heat pump corrosion-resistant evaporator and condenser single unit sewage heating system.

[0045] Appendix Figure 10 This is an embodiment of using wind and solar green electricity as the main power supply for the integrated oilfield oily sewage high-temperature water source heat pump machine room system.

[0046] Explanation of reference numerals in the drawings:

[0047] 1. Input heat exchanger, 2. Oil-containing sewage source circulation pump, 3. Oil-containing sewage connection pipe, 4. Outlet of oil-containing sewage source circulation pump, 5. Inlet of oil-containing sewage source circulation pump, 6. Primary side outlet of input heat exchanger, 7. Primary side inlet of input heat exchanger, 8. Oil-containing sewage connection pipe, 9. Secondary side outlet of input heat exchanger, 10. Secondary side inlet of input heat exchanger, 11. First water source heat pump heat source water circulation pump, 12. Inlet of first water source heat pump heat source water circulation pump, 13. Outlet of first water source heat pump heat source water circulation pump, 14. Inlet of first water source heat pump evaporator water source, 15. Outlet of first water source heat pump evaporator water source, 16. Hot water outlet of first water source heat pump condenser, 17. Hot water inlet of first water source heat pump condenser, 18. First water source heat pump unit, 19. Series circulation pump for heat source water of first and second water source heat pumps, 20. Inlet of series circulation pump for heat source water of first and second water source heat pumps, 21. Outlet of series circulation pump for heat source water of first and second water source heat pumps, 22. Inlet of second water source heat pump evaporator water source, 23. Outlet of second water source heat pump evaporator water source, 24. Hot water outlet of second water source heat pump condenser, 25. Hot water inlet of second water source heat pump condenser, 26. Inlet of second water source heat pump hot water output circulation pump, 27. Outlet of second water source heat pump hot water output circulation pump, 28. Second water source heat pump unit, 29. Second water source heat pump hot water output circulation pump, 30. Output heat exchanger, 31. Hot water inlet of primary side of output heat exchanger, 32. Hot water outlet of primary side of output heat exchanger, 33. Oil-containing sewage heating circulation pump, 34. Oil-containing sewage heating circulation pipe, 35. Sewage input port of secondary side of output heat exchanger, 36. Sewage output port of secondary side of output heat exchanger, 37. Inlet of oil-containing sewage heating circulation pump, 38. Outlet of oil-containing sewage heating circulation pump, 39. Oil-containing sewage heating circulation pipe, 40. Power distribution cabinet, 41. Box-type machine room, 42. Remote power distribution fire metering monitoring room, 43. High and low voltage cable tray, 44. High voltage power distribution cabinet, 45. Low voltage power distribution cabinet, 46. Automatic control cabinet, 47. Data remote monitoring box, 48. Metering box, 49. Fire monitoring box, 50. Wiring hub cabinet, 51. Heating or hot water supply end equipment, 52. Inlet of heating or hot water supply end equipment, 53. Outlet of heating or hot water supply end equipment, 54. Machine room panoramic browsing monitoring room, 55. Inlet interface of oil-containing sewage source, 56. Inlet interface of oil-containing sewage source, 57. Interface of heating or heat supply end equipment, 58. Interface of heating or heat supply end equipment, 59. Single / double unit conversion valve, 60. Single / double unit conversion valve, 61. Single / double unit conversion valve, 62. Single / double unit conversion valve, 63. First water source heat pump condenser hot water output circulation pump, 64. Inlet of first water source heat pump condenser hot water output circulation pump, 65. Outlet of first water source heat pump condenser hot water output circulation pump, 66. First water source heat pump evaporator water source input circulation pump, 67. Inlet of first water source heat pump evaporator water source input circulation pump, 68. Outlet of first water source heat pump evaporator water source input circulation pump69. First water source heat pump condenser hot water output circulation pump, 70. Outlet of the first water source heat pump condenser hot water output circulation pump, 71. Inlet of the first water source heat pump condenser hot water output circulation pump, 72. Wind power generation device, 73. Photovoltaic power generation device, 74. Wind-solar hybrid controller, 75. Battery energy storage device, 76. Inverter., Detailed implementation mode

[0048] The technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative work shall fall within the protection scope of the present invention.

[0049] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0050] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless otherwise specifically defined. In addition, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0051] Appendix Figure 1, which is an embodiment of an integrated high-temperature water source heat pump sewage heating system for oily sewage in oilfields. The system includes an input heat exchanger 1, an oily sewage source circulation pump 2, an oily sewage connecting pipe 3, an outlet of the oily sewage source circulation pump 4, an inlet of the oily sewage source circulation pump 5, an outlet of the primary side of the input heat exchanger 6, an inlet of the primary side of the input heat exchanger 7, an oily sewage connecting pipe 8, an outlet of the secondary side of the input heat exchanger 9, an inlet of the secondary side of the input heat exchanger 10, a first water source heat pump heat source water circulation pump 11, an inlet of the first water source heat pump heat source water circulation pump 12, an outlet of the first water source heat pump heat source water circulation pump 13, an inlet of the first water source heat pump evaporator water source 14, an outlet of the first water source heat pump evaporator water source 15, a hot water outlet of the first water source heat pump condenser 16, a hot water inlet of the first water source heat pump condenser 17, a first water source heat pump unit 18, a series circulation pump for the heat source water of the first and second water source heat pumps 19, an inlet of the series circulation pump for the heat source water of the first and second water source heat pumps 20, an outlet of the series circulation pump for the heat source water of the first and second water source heat pumps 21, an inlet of the second water source heat pump evaporator water source 22, an outlet of the second water source heat pump evaporator water source 23, a hot water outlet of the second water source heat pump condenser 24, a hot water inlet of the second water source heat pump condenser 25, an inlet of the second water source heat pump hot water output circulation pump 26, an outlet of the second water source heat pump hot water output circulation pump 27, a second water source heat pump unit 28, a second water source heat pump hot water output circulation pump 29, an output heat exchanger 30, a hot water inlet of the primary side of the output heat exchanger 31, a hot water outlet of the primary side of the output heat exchanger 32, an oily sewage heating circulation pump 33, an oily sewage heating circulation pipe 34, a sewage input port of the secondary side of the output heat exchanger 35, a sewage output port of the secondary side of the output heat exchanger 36, an inlet of the oily sewage heating circulation pump 37, an outlet of the oily sewage heating circulation pump 38, and an oily sewage heating circulation pipe 39.

[0052] Among them, the input heat exchanger 1 is connected to the inlet 5 of the oily sewage source circulation pump 2 of the oily sewage source circulation pump through the outlet 6 of the primary side of the input heat exchanger. The outlet 4 of the oily sewage source circulation pump 2 of the oily sewage source circulation pump is connected to the oily sewage source in the oilfield through the oily sewage connecting pipe 3. The inlet 7 of the primary side of the input heat exchanger 1 of the input heat exchanger 1 is connected to the oily sewage source in the oilfield through the oily sewage connecting pipe 8 to form an input end of the oily sewage in the oilfield.

[0053] The input heat exchanger 1 is made of corrosion-resistant materials, which plays a role in isolating and heat-exchanging the conventional water source heat pump unit from the extremely corrosive oily sewage source. It realizes the function of extracting the heat energy of the oily sewage with a cheap conventional water source heat pump unit. Among them, the corrosion-resistant materials include stainless steel, nickel-based corrosion-resistant alloys, and titanium alloys, etc.

[0054] The outlet 9 of the secondary side of the input heat exchanger 1 is connected to the inlet 12 of the first water source heat pump heat source water circulation pump 11 of the first water source heat pump, and the outlet 13 of the first water source heat pump heat source water circulation pump 11 is connected to the inlet 14 of the first water source heat pump evaporator water source. The outlet 15 of the first water source heat pump evaporator water source is connected to the secondary side of the input heat exchanger through the inlet 10 of the secondary side of the input heat exchanger. Thus, the heat source water circulation of the evaporator of the first water source heat pump unit 18 is formed and exchanges heat with the oily sewage heat exchange loop.

[0055] The hot water outlet 16 of the first water source heat pump condenser is connected to the first and second water source heat pump heat source water series circulation pump 19 through the inlet 20 of the first and second water source heat pump heat source water series circulation pump. The outlet 21 of the first and second water source heat pump heat source water series circulation pump is connected to the second water source heat pump unit 28 through the inlet 22 of the second water source heat pump evaporator water source. The outlet 23 of the second water source heat pump evaporator water source is connected to the condenser of the first water source heat pump unit 18 through the hot water inlet 17 of the first water source heat pump condenser, forming a heat source water circulation loop between the first water source heat pump unit 18 and the second water source heat pump unit 28 and outputting heat energy to the second water source heat pump unit 28.

[0056] The hot water outlet 24 of the second water source heat pump condenser is connected to the inlet 26 of the second water source heat pump hot water output circulation pump. The outlet 27 of the second water source heat pump hot water output circulation pump 29 of the second water source heat pump hot water output circulation pump is connected to the output heat exchanger 30 through the hot water inlet 31 of the first side of the output heat exchanger. The hot water outlet 32 of the first side of the output heat exchanger 30 of the heat exchanger 30 is connected to the condenser of the second water source heat pump unit 28 through the hot water inlet 25 of the second water source heat pump condenser, forming a skid-mounted oily sewage high-temperature water source heat pump sewage heating system.

[0057] The sewage input port 35 of the second side of the output heat exchanger 30 is connected to the heating or heat supply terminal equipment interface 57 through the oily sewage heating circulation pipe 34. The outlet 38 of the oily sewage heating circulation pump 33 of the oily sewage heating circulation pump is connected to the heating or heat supply terminal equipment interface 58 through the oily sewage heating circulation pipe 39. The inlet 37 of the oily sewage heating circulation pump 33 of the oily sewage heating circulation pump is connected to the sewage output port 36 of the second side of the output heat exchanger.

[0058] The output heat exchanger 30 is made of corrosion-resistant materials, and through the output heat exchanger 30, the function of isolating and circulating and heating the oily sewage in the oilfield by a conventional ordinary water source heat pump can be realized. Its more important role is strong interchangeability, and it can be replaced by a standard conventional water source heat pump unit, greatly reducing the overall cost and increasing the service life of the oily sewage source heat pump unit.

[0059] Appendix Figure 1, its greatest benefits and advantages are that due to the heat exchangers of the input heat exchanger 1 and the output heat exchanger 30 made of corrosion-resistant materials, they can isolate and exchange heat for the oil-containing sewage in oilfields with extremely strong corrosiveness to metal materials in acidic, alkaline, and saline environments. Therefore, the first water source heat pump unit 18 and the second water source heat pump unit 28 can use inexpensive ordinary standard conventional water source heat pump units to heat the oil-containing sewage in oilfields for the heating needs of various oil-containing sewage with high water temperatures in oilfield production processes. The input heat exchanger 1 and the output heat exchanger 30 can adopt any form of corrosion-resistant heat exchanger. In this embodiment, a titanium alloy plate heat exchanger is used.

[0060] Appendix Figure 1 Among them, since the temperature of the oil-containing sewage in the oilfield is about 30 - 35 °C, when using a water source heat pump unit with R22 refrigerant, if the inlet temperature of the oil-containing sewage in the evaporator of the unit is 30 °C, the evaporation temperature is 25 °C, and the condensation temperature of the condenser is about 50 °C. The highest outlet temperature of the hot water from the condenser is 45 °C. If it is higher, its economy and safety will deteriorate; when using R134A refrigerant, if the inlet temperature of the oil-containing sewage in the evaporator is 30 °C, the evaporation temperature is 25 °C, the condensation temperature of the condenser is about 60 °C, and the highest outlet temperature of the hot water from the condenser is 55 °C. If it is higher, its economy and safety will deteriorate. Therefore, a single water source heat pump unit is an ideal unit for heating conditions, but it is simply impossible to use it for heating at a high temperature of about 80 °C in oilfield production processes, and it is also dangerous for the safety of the unit. After the first water source heat pump unit 18 and the second water source heat pump unit 28 are connected in series and operated, the second water source heat pump unit 28 is at the input end where the hot water output from the condenser of the first water source heat pump unit 18 serves as the heat source water for the evaporator of the second water source heat pump unit 28. Then: when using R134A refrigerant, if the inlet temperature of the evaporator of the second water source heat pump unit 28 is 55 °C, the evaporation temperature is 50 °C, the condensation temperature of the condenser is about 85 °C, and the highest outlet temperature of the hot water from the condenser is 80 °C, and the operating conditions of the unit are very stable and reliable. The economy is the same as when the output water temperature is 55 °C. This is the advantage of the series operation of the two units, which cannot be compared by any other form of unit structure.

[0061] Appendix Figure 2 , which is an embodiment of the integrated oilfield oil-containing sewage high-temperature water source heat pump system configured with a power distribution device. Appendix Figure 2 It is based on Appendix Figure 1 and is configured with a power distribution cabinet 40. In the figure, the power distribution cabinet 40 can select a low-voltage cabinet powered by 380v or a high-voltage cabinet powered by 6600v or 10kv according to the water source heat pump unit. Others are the same as Appendix Figure 1 and will not be repeated.

[0062] Appendix Figure 3 is an embodiment of the integrated oilfield oil-containing sewage high-temperature water source heat pump system configured and installed in a box-type machine room. AppendixFigure 3 Configure the containerized computer room 41 and attach Figure 1 or attach Figure 2 The displayed equipment is installed in the containerized computer room 41 to form an integrated high-temperature water source heat pump computer room system for oily sewage.

[0063] Attach Figure 3 Integrate and configure all the cumbersome civil engineering heat pump computer room construction, computer room equipment installation, pipeline installation, power distribution equipment and cable installation of the existing civil engineering form oily sewage source heat pump computer room system in the containerized computer room 41, and use the production workshop processing equipment in the factory for production and manufacturing. Transform the on-site engineering construction of users into an integrated high-temperature water source heat pump computer room system for oily sewage manufactured by standardized factory production. The factory sells it in the form of products, avoiding low-level manual production by on-site workers, saving huge one-time investments for users, and realizing standardized product production and after-sales service in the factory.

[0064] Attach Figure 4 It is an embodiment of a power distribution remote transmission fire monitoring metering room computer room configured for an integrated oilfield high-temperature water source heat pump computer room for oily sewage. Attach Figure 4 In order to be more safe and reliable, all the electrical equipment in the containerized computer room 41 is integrated in the power distribution remote transmission fire metering monitoring room 42, and is isolated from the water source heat pump unit, pump equipment and all the circulating water pipelines. Among them, the high and low voltage cable trays 43, high voltage switchgear 44, low voltage switchgear 45, automatic control cabinet 46, data remote transmission monitoring box 47, metering box 48, fire monitoring box 49 wiring hub cabinet 50 and computer room panoramic browsing monitoring room 54 are centrally and independently installed at one end of the containerized computer room 41. At the other end, a water source heat pump unit, heat exchanger, water pump and circulating water pressure stabilizing and filtering auxiliary, as well as a complete set of computer room water circulation equipment such as a collection and distribution station are configured and installed to form a complete integrated oilfield high-temperature water source heat pump computer room system for oily sewage. The computer room panoramic browsing monitoring room 54 can browse all the data and operation conditions of all the equipment in the computer room panorama, as well as the information that needs to be printed. It has multiple functions such as monitoring the operation and rest of the computer room.

[0065] Among them, the high and low voltage cable trays 43 constitute a safety cable tray device for high and low voltage cable transmission and connection equipment. The high voltage switchgear 44 constitutes a 6600v or 10kv high voltage power supply and protection system device. The low voltage switchgear 45 constitutes a 380v, 220v, 24v or 12v etc. low voltage power supply system device. The automatic control cabinet 46 is a variable frequency automatic intelligent control system for the water source heat pump unit and pump equipment, realizing the automatic energy-saving control function of the temperature of the high-temperature water source heat pump for oily sewage.

[0066] The data remote transmission monitoring box 47 constitutes a wireless remote transmission system for all data information of the integrated oily sewage high-temperature water source heat pump machine room system. Through local area network or mobile communication control technology, it realizes the monitoring function of the operation data, fault information, and start / stop of the integrated oily sewage high-temperature water source heat pump machine room system.

[0067] The metering box 48 realizes the functions of recording, calculating, and transmitting the operating power consumption of the integrated oily sewage high-temperature water source heat pump machine room system.

[0068] The fire monitoring box 49 realizes the functions of fire safety monitoring and fire sprinkler of the integrated oily sewage high-temperature water source heat pump machine room system.

[0069] The wiring hub cabinet 50 completes the function of hub wiring for transmission cables of the integrated oily sewage high-temperature water source heat pump machine room system.

[0070] The panoramic view monitoring room 54 of the machine room can view and print all data information of the integrated oily sewage high-temperature water source heat pump machine room system, or be used as a temporary rest duty room.

[0071] Appendix Figure 5 This is an embodiment of the integrated oilfield oily sewage high-temperature water source heat pump system for heating or supplying hot water. Appendix Figure 5 It is on the basis of the appendix Figure 1 The output heat exchanger 30 and the oily sewage heating circulation pump 33 are deleted, and the heating or hot water supply end equipment 51 is configured to form an oily sewage water source heat pump heating or hot water supply system. Because the heating or hot water supply system does not have the function of heating oily sewage, and the fan coil air conditioner, radiator, or floor coil used at the heating end, as well as the water tank configured for hot water supply, all use a clean water system and do not require a corrosion-resistant output heat exchanger and a post-heating water pump. This greatly saves the equipment cost of the integrated oily sewage high-temperature water source heat pump system for heating or hot water supply.

[0072] Appendix Figure 5 In the appendix, for configuring the input heat exchanger 1, the first water source heat pump unit 18 and the second water source heat pump unit 28 can use ordinary conventional standard water source heat pump units, which are applied in scenarios where the water source of the water source heat pump is oily sewage in oilfields, urban sewage, sewage in bath centers, chemical sewage, and waste hot water and sewage containing corrosive substances to metal materials, for high-temperature water heating and heat supply applications.

[0073] Appendix Figure 6 This is an embodiment of the integrated oilfield oily sewage high-temperature water source heat pump for heating or supplying hot water. Appendix Figure 6 It is on the basis of the appendix Figure 5Based on the display device, the first water source heat pump unit 18 deletes the oil-containing sewage circulation equipment of the input heat exchanger 1 and the oil-containing sewage source circulation pump 2, as well as the anti-corrosion isolation loop equipment of the output heat exchanger 30 and the oil-containing sewage heating circulation pump 33. Attached Figure 6 The evaporator of the first water source heat pump unit 18 of the display device is a water source heat pump unit assembled with copper-nickel or titanium alloy tubes or stainless steel plate heat exchangers, forming a water source heat pump unit resistant to oil-containing sewage corrosion in the form of directly entering the evaporator of the water source heat pump unit by the oil-containing sewage in the oilfield. The condenser is composed of standard purple copper tubes. The evaporator and condenser of the second water source heat pump unit 28 are both composed of conventional purple copper tubes to form a standard conventional high-temperature water source heat pump heating or hot water supply system, so as to reduce the system cost.

[0074] Attached Figure 7 This is an embodiment of an integrated high-temperature water source heat pump for oilfield oil-containing sewage with single and double units switchable for heating or supplying hot water. Attached Figure 7 In the attached Figure 6 Basic configuration single and double unit conversion valves 59, single and double unit conversion valves 60, single and double unit conversion valves 61, single and double unit conversion valves 62. To meet the actual energy-saving needs of users, a conversion heating or hot water supply system shared by single and double units is formed. During operation, close the single and double unit conversion valves 59 and single and double unit conversion valves 60, and open the single and double unit conversion valves 61 and single and double unit conversion valves 62 to form a heating or hot water supply system by the first water source heat pump unit 18. The second water source heat pump unit 28 stops running. Attached Figure 7 When the first water source heat pump unit 18 operates as a single unit, the heating or hot water supply equipment inlet 52 of the heating or hot water supply terminal equipment 51 is connected to the heating or heat supply terminal equipment interface 57, and the heating or hot water supply equipment outlet 53 is connected to the heating or heat supply terminal equipment interface 58, and heat is supplied from the single unit to the heating or hot water supply terminal equipment 51.

[0075] Attached Figure 8 This is an embodiment of an integrated high-temperature water source heat pump single unit sewage heating system for oilfield oil-containing sewage. Attached Figure 8 It is on the basis of the attached Figure 3 A first water source heat pump unit 18 is configured on the basis of the display device. The first water source heat pump unit 18 is a conventional ordinary standard water source heat pump unit. The input heat exchanger 1 and the output heat exchanger 30 are used to resist oil-containing sewage corrosion. Others are the same as the attached Figure 3 and will not be repeated.

[0076] Attached Figure 9 This is an embodiment of an integrated high-temperature water source heat pump single unit sewage heating system with corrosion-resistant evaporator and condenser for oilfield oil-containing sewage

[0077] Attached Figure 9 It is in the attached Figure 6Based on a display device, a first water source heat pump unit 18 is configured to form an oilfield oily sewage high-temperature water source heat pump engine room system operating with a single unit. Since a corrosion-resistant water source heat pump unit is used, the oily sewage can directly enter the evaporator and condenser for operation.

[0078] Appendix Figure 10 It is on the basis of the appendix Figure 3 A wind power generation device 72 and / or a photovoltaic power generation device 73 are configured based on a display device, and the integrated oilfield oily sewage high-temperature water source heat pump engine room system is mainly powered by green wind and solar electric energy, with the power grid as the auxiliary power supply. Once there is a problem with wind and solar power generation, the power grid will supply power.

[0079] Since the wind power generation device 72 is extremely unstable affected by the presence or absence of wind, but the wind power generation has the advantages of small floor area and powerful power, it is complementary to the photovoltaic power generation device 73 to overcome the defects of photovoltaic power generation affected by day and night and cloudy, rainy and snowy weather. If it is a stable wind source area, the wind power generation device 72 can be independently used for power generation, and the economic benefits are more prominent. The wind power generation device 72 and / or the photovoltaic power generation device 73 are stored in energy through a wind-solar complementary controller 74 via a battery energy storage device 75 to improve the stable power generation and power supply of the system. The wind power generation device 72 and / or the photovoltaic power generation device 73 convert the direct current generated through the battery energy storage device 75 or directly through an inverter 76 into alternating current through the inverter 76, and supply power to the integrated oilfield oily sewage high-temperature water source heat pump engine room system through a power distribution cabinet 40.

[0080] All the above-mentioned attached drawings' structures are not only capable of outputting high-temperature water. The outlet water temperature of various temperatures can be set and adjusted according to user needs to further save operating costs.

[0081] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than limiting it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An integrated oilfield oily wastewater high-temperature water source heat pump room system, characterized in that: include: An input heat exchanger (1), an oily wastewater source circulation pump (2), a first water source heat pump heat source water circulation pump (11), a first water source heat pump unit (18), a first and second water source heat pump heat source water series circulation pumps (19), a second water source heat pump unit (28), a second water source heat pump hot water output circulation pump (29), an output heat exchanger (30) and an oily wastewater heating circulation pump (33); The primary side of the input heat exchanger (1) is connected to the oily wastewater source circulation pump inlet (5) of the oily wastewater source circulation pump (2) via the input heat exchanger primary side outlet (6), the oily wastewater source circulation pump outlet (4) of the oily wastewater source circulation pump (2) is connected to the oily wastewater source via the oily wastewater connecting pipe (3), and the primary side inlet (7) of the input heat exchanger is connected to the oily wastewater source via the oily wastewater connecting pipe (8); The secondary side of the input heat exchanger (1) is connected to the first water source heat pump heat source water circulation pump inlet (12) of the first water source heat pump heat source water circulation pump (11) via the input heat exchanger secondary side outlet (9), the first water source heat pump heat source water circulation pump outlet (13) of the first water source heat pump heat source water circulation pump (11) is connected to the first water source heat pump unit (18) via the first water source heat pump evaporator water source inlet (14), and the first water source heat pump evaporator water source outlet (15) is connected to the input heat exchanger (1) via the input heat exchanger secondary side inlet (10); One end of the first and second water source heat pump heat source water series circulation pump (19) is connected to the first water source heat pump condenser hot water outlet (16) through the first and second water source heat pump heat source water series circulation pump inlet (20), the first water source heat pump condenser hot water inlet (17) is connected to the second water source heat pump evaporator water source outlet (23), and the second water source heat pump evaporator water source inlet (22) is connected to the first and second water source heat pump heat source water series circulation pump outlet (21); the first and second water source heat pump heat source water series circulation pump (19) connects the output end of the first water source heat pump unit (18) and the input end of the second water source heat pump unit (28) in series; The second water source heat pump condenser hot water outlet (24) of the second water source heat pump unit (28) is connected to the second water source heat pump hot water output circulation pump inlet (26), the second water source heat pump hot water output circulation pump (29) is connected to the output heat exchanger primary side hot water inlet (31) of the output heat exchanger (30) via the second water source heat pump hot water output circulation pump outlet (27), and the output heat exchanger primary side hot water outlet (32) is connected to the second water source heat pump condenser hot water inlet (25); The secondary-side sewage input port (35) of the output heat exchanger (30) is connected to the oily sewage to be heated via an oily sewage heating circulation pipe (34); the oily sewage to be heated is connected to the oily sewage heating circulation pump outlet (38) of the oily sewage heating circulation pump (33) via an oily sewage heating circulation pipe (39); and the oily sewage heating circulation pump inlet (37) of the oily sewage heating circulation pump (33) is connected to the secondary-side sewage output port (36) of the output heat exchanger.

2. The integrated oilfield oily wastewater high-temperature water source heat pump room system according to claim 1 is characterized in that: Also includes a power distribution cabinet (40); The power distribution cabinet (40) is connected to the oily wastewater source circulation pump (2), the first water source heat pump heat source water circulation pump (11), the first water source heat pump unit (18), the first and second water source heat pump heat source water series circulation pumps (19), the second water source heat pump unit (28), the second water source heat pump hot water output circulation pump (29) and the oily wastewater heating circulation pump (33) through the required cables, and supplies power to the equipment connected thereto.

3. The integrated oilfield oily wastewater high-temperature water source heat pump room system according to claim 2 is characterized in that: Also includes a box-type machine room (41); The box-type machine room (41) is equipped with the power distribution cabinet (40), the oily wastewater source circulation pump (2), the first water source heat pump heat source water circulation pump (11), the first water source heat pump unit (18), the first and second water source heat pump heat source water series circulation pumps (19), the second water source heat pump unit (28), the second water source heat pump hot water output circulation pump (29) and the oily wastewater heating circulation pump (33).

4. The integrated oilfield oily wastewater high-temperature water source heat pump room system according to claim 3 is characterized in that: Including power distribution remote fire metering monitoring room (42); The power distribution remote fire metering monitoring room (42) comprises high and low voltage cable trays (43), a high voltage distribution cabinet (44), a low voltage distribution cabinet (45), an automatic control cabinet (46), a data remote transmission monitoring box (47), a metering box (48), a fire monitoring box (49), a wiring hub cabinet (50) and a computer room panoramic browsing monitoring room (54).

5. The integrated oilfield oily wastewater high-temperature water source heat pump room system according to claim 4 is characterized in that: include: Heating or hot water supply terminal equipment (51); One end of the heating or hot water supply terminal device inlet (52) of the heating or hot water supply terminal device (51) is connected to the second water source heat pump hot water output circulation pump outlet (27), and the heating or hot water supply terminal device (51) is connected to the second water source heat pump condenser hot water inlet (25) via the heating or hot water supply terminal device outlet (53).

6. The integrated oilfield oily wastewater high-temperature water source heat pump room system according to claim 5 is characterized in that: It comprises a first water source heat pump unit (18), a first water source heat pump heat source water circulation pump (11), an oily sewage connecting pipe (3) and an oily sewage connecting pipe (8); The water source outlet (15) of the first water source heat pump evaporator of the first water source heat pump unit (18) is connected to the oily wastewater source through the oily wastewater connecting pipe (3); The first water source heat pump evaporator water source inlet (14) of the first water source heat pump unit (18) is connected to the first water source heat pump heat source water circulation pump outlet (13) of the first water source heat pump heat source water circulation pump (11), and the first water source heat pump heat source water circulation pump inlet (12) of the first water source heat pump heat source water circulation pump (11) is connected to the oily wastewater source through the oily wastewater connecting pipe (8).

7. The integrated oilfield oily wastewater high-temperature water source heat pump room system according to claim 6 is characterized in that: It includes a single-double unit conversion valve (59), a single-double unit conversion valve (60), a single-double unit conversion valve (61) and a single-double unit conversion valve (62); One end of the single-double unit conversion valve (59) is connected to the water source inlet (22) of the second water source heat pump evaporator, and the other end is respectively connected to one end of the second water source heat pump heat source water series circulation pump outlet (21) and the single-double unit conversion valve (61), and the other end of the single-double unit conversion valve (61) is connected to the heating or hot water supply terminal equipment interface (57); One end of the single-double unit conversion valve (60) is connected to the water source outlet (23) of the second water source heat pump evaporator, and the other end is respectively connected to the hot water inlet (17) of the first water source heat pump condenser and one end of the single-double unit conversion valve (62), and the other end of the single-double unit conversion valve (62) is connected to the heating or hot water supply terminal equipment interface (58).

8. The integrated oilfield oily wastewater high-temperature water source heat pump room system according to claim 3 is characterized in that: It comprises a first water source heat pump unit (18) and a first water source heat pump condenser hot water output circulation pump (63); The first water source heat pump condenser hot water inlet (16) of the first water source heat pump unit (18) is connected via the first water source heat pump condenser hot water output circulation pump water inlet (64); The first water source heat pump condenser hot water output circulation pump (63) is connected to the output heat exchanger primary side hot water inlet (31) via the first water source heat pump condenser hot water output circulation pump outlet (65), and the output heat exchanger primary side hot water outlet (32) is connected to the first water source heat pump condenser hot water inlet (17).

9. The integrated oilfield oily wastewater high-temperature water source heat pump room system according to claim 6 is characterized in that: include: A first water source heat pump unit (18), a first water source heat pump evaporator water source input circulation pump (66) and a first water source heat pump condenser hot water output circulation pump (69); The first water source heat pump evaporator water source input circulation pump water inlet (67) of the first water source heat pump evaporator water source input circulation pump (66) is connected to the oily wastewater connecting pipe (8), and the oily wastewater connecting pipe (8) is connected to the oily wastewater source water inlet interface (55); the first water source heat pump evaporator water source input circulation pump water outlet (68) is connected to the first water source heat pump evaporator water source inlet (14), and the first water source heat pump evaporator water source outlet (15) is connected to the oily wastewater source water inlet interface (56) through the oily wastewater connecting pipe (3); The first water source heat pump condenser hot water output circulation pump (69) is connected to a water source heat pump condenser hot water output circulation pump outlet (70) through a pipeline; the first water source heat pump condenser hot water output circulation pump water inlet (71) is connected to the first water source heat pump condenser hot water outlet (16), and the first water source heat pump condenser hot water inlet (17) is connected to the oily wastewater heating water outlet interface (58).

10. The integrated oilfield oily wastewater high-temperature water source heat pump room system according to claim 3 is characterized in that: include: A wind power generation device (72) and / or a photovoltaic power generation device (73) and / or a wind-solar hybrid controller (74), a battery energy storage device (75) and an inverter (76); The integrated oilfield oily wastewater high-temperature water source heat pump room system is powered by wind and solar power generation or grid-assisted power supply, the wind power generation device (72) is connected to the wind and solar complementary controller (74), the photovoltaic power generation device (73) is connected to the wind and solar complementary controller (74), the wind and solar complementary controller (74) is connected to the battery energy storage device (75), the battery energy storage device (75) is connected to the inverter (76), and the inverter (76) is connected to the power distribution cabinet (40).

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