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

Abstract

The utility model provides a kind of integrated oilfield oily sewage high-temperature water source heat pump machine room system, and the system includes input heat exchanger, oily sewage source circulating pump, first water source heat pump heat source water circulating pump, first water source heat pump unit, first and second water source heat pump heat source water series circulation pump, second water source heat pump unit, second water source heat pump hot water output circulating pump, output heat exchanger and oily sewage heating circulating pump;The utility model uses the method that two-stage water source heat pump unit is connected in series to promote heat pump outlet water temperature, and innovatively constructs integrated oilfield oily sewage high-temperature water source heat pump machine room system.Replaces civil engineering machine room with box-type machine room, and conventional water source heat pump unit, heat exchanger equipment, water pump and water supplement auxiliary equipment and power distribution complete equipment are standardized processing and manufacturing by factory using mechanical tool equipment, and factory technical workers are assembled in box-type machine room, and after being debugged and running normally, it is shipped in product form.

Description

Technical Field

[0001] This utility model relates to the field of waste heat supply, specifically to an integrated high-temperature water source heat pump room system for oily wastewater from oil fields. Background Technology

[0002] Oilfield production processes generate oily wastewater at 30-35°C, making it an ideal wastewater source for water source heat pumps. Oilfield production requires heating this wastewater to approximately 80-90°C for oil extraction processes. However, current water source heat pump technology can only heat it to around 65°C, and the oily wastewater severely corrodes metal materials, rendering the evaporators and condensers of conventional water source heat pump units inadequate for these applications. To overcome the corrosive effects of oily wastewater, corrosion-resistant nickel alloy brass tubes are used instead of the original copper tubes in the conventional evaporators and condensers, enhancing the heat exchanger's resistance to corrosion and creating a non-standard water source heat pump unit. However, the nickel alloy brass tubes have a limited lifespan in resisting oily wastewater corrosion, and this results in a high cost for the water source heat pump unit.

[0003] Currently, the construction of heat pump room systems typically begins with the civil engineering construction of the room. After the civil engineering is completed, the purchased water source heat pump units, heat exchangers, water pumps, auxiliary water supply equipment, and electrical control cabinets are installed inside the civil engineering room. This process not only results in lengthy procurement and construction cycles, but also leads to inconsistent skill levels among on-site workers. Installation is often done manually using toothed saws, making it difficult to control project quality and achieve standardized construction. This results in significant waste of raw materials, low construction efficiency, and high project costs. Utility Model Content

[0004] The primary objective of this invention is to provide an integrated high-temperature water source heat pump room system for oilfield oily wastewater, which can solve the problems existing in the prior art. This utility model provides an integrated high-temperature water source heat pump room system for oily wastewater in oilfields, which includes: an input heat exchanger, an oily wastewater source circulation pump, a first water source heat pump heat source water circulation pump, a first water source heat pump unit, a first and 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 wastewater heating circulation pump; The primary side of the input heat exchanger is connected to the inlet of the oily wastewater source circulation pump via the outlet of the primary side of the input heat exchanger. The outlet of the oily wastewater source circulation pump is connected to the oily wastewater source via an oily wastewater connection pipe. The inlet of the primary side of the input heat exchanger is connected to the oily wastewater source via an oily wastewater connection pipe. The secondary side of the input heat exchanger is connected to the inlet of the first water source heat pump through the outlet of the secondary side of the input heat exchanger. The outlet of the first water source heat pump is connected to the first water source heat pump unit through the water source inlet of the first water source heat pump evaporator. The water source outlet of the first water source heat pump evaporator is connected to the input heat exchanger through the inlet of the secondary side of the input heat exchanger. One end of the first and second water source heat pump series circulation pump 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 series circulation pump. The hot water inlet of the first water source heat pump condenser is connected to the water source outlet of the second water source heat pump evaporator. The water source inlet of the second water source heat pump evaporator is connected to the outlet of the first and second water source heat pump series circulation pump. The first and second water source heat pump series circulation pump connects the output end of the first water source heat pump unit and the input end of the second water source heat pump unit in series. The hot water outlet of the second source heat pump condenser of the second source heat pump unit is connected to the inlet of the second source heat pump hot water output circulation pump. The hot water output circulation pump of the second source heat pump is connected to the primary side hot water inlet of the output heat exchanger through the outlet of the second source heat pump hot water output circulation pump. The primary side hot water outlet of the output heat exchanger is connected to the hot water inlet of the second source heat pump condenser. The wastewater inlet on the secondary side of the output heat exchanger is connected to the oily wastewater to be heated via an oily wastewater heating circulation pipe. The oily wastewater to be heated is connected to the outlet of the oily wastewater heating circulation pump via the oily wastewater heating circulation pipe. The inlet of the oily wastewater heating circulation pump is connected to the wastewater outlet on the secondary side of the output heat exchanger.

[0005] Preferably, this also includes power distribution cabinets; The power distribution cabinet connects the oily wastewater 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 pump, the second water source heat pump unit, the second water source heat pump hot water output circulation pump, and the oily wastewater heating circulation pump via the required cables, and supplies power to the equipment connected thereto.

[0006] Preferably, containerized computer rooms are also included; The box-type equipment room is equipped with the power distribution cabinet, the oily wastewater 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 pump, the second water source heat pump unit, the second water source heat pump hot water output circulation pump and the oily wastewater heating circulation pump.

[0007] Preferred options include remote power distribution fire metering and monitoring rooms; The power distribution remote transmission fire metering and monitoring room includes high and low voltage cable trays, high voltage distribution cabinets, low voltage distribution cabinets, automatic control cabinets, data remote transmission monitoring boxes, metering boxes, fire monitoring boxes, wiring hub cabinets, and a panoramic viewing monitoring room for the computer room.

[0008] Preferred options include: heating or hot water supply terminal equipment; The inlet of the heating or hot water terminal device is connected to the outlet of the hot water output circulation pump of the second water source heat pump, and the outlet of the heating or hot water terminal device is connected to the hot water inlet of the condenser of the second water source heat pump.

[0009] 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; 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 wastewater source through the oily wastewater connection pipe; 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, and the inlet 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.

[0010] Preferably, it includes a single / dual unit switching valve, a single / dual unit switching valve, a single / dual unit switching valve, and a single / dual unit switching valve; One end of the single / dual unit switching valve is connected to the water source inlet of the second water source heat pump evaporator, and the other end is connected to one end of the outlet of the second water source heat pump heat source water series circulation pump and the single / dual unit switching valve respectively. The other end of the single / dual unit switching valve is connected to the interface of the heating or hot water supply terminal equipment. One end of the single / dual unit switching valve is connected to the water source outlet of the second water source heat pump evaporator, and the other end is connected to the hot water inlet of the first water source heat pump condenser and one end of the single / dual unit switching valve, respectively. The other end of the single / dual unit switching valve is connected to the interface of the heating or hot water supply terminal equipment.

[0011] Preferably, it includes a first water source heat pump unit and a first water source heat pump condenser hot water output circulation pump; The hot water inlet of the first water source heat pump condenser of the first water source heat pump unit is connected to the inlet of the hot water output circulation pump of the first water source heat pump condenser. The hot water output circulation pump of the first water source heat pump condenser is connected to the primary side hot water inlet of the output heat exchanger through the outlet of the hot water output circulation pump of the first water source heat pump condenser, and the primary side hot water outlet of the output heat exchanger is connected to the hot water inlet of the first water source heat pump condenser.

[0012] Preferably, it includes: a first water source heat pump unit, a first water source heat pump evaporator water source input circulation pump, and a first water source heat pump condenser hot water output circulation pump; The inlet of the first water source heat pump evaporator water source input circulation pump is connected to the second oily wastewater connection pipe, and the second oily wastewater connection pipe is connected to the first oily wastewater source inlet interface; the outlet of the first water source heat pump evaporator water source input circulation pump is connected to the first water source heat pump evaporator water source inlet, and the first water source heat pump evaporator water source outlet is connected to the second oily wastewater source inlet interface through the first oily wastewater connection pipe; The first water source heat pump condenser hot water output circulation pump is connected to the outlet of the first water source heat pump condenser hot water output circulation pump through a pipeline; the inlet of the first water source heat pump condenser hot water output circulation pump 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 oily sewage heating outlet interface.

[0013] 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; The integrated oilfield oily wastewater high-temperature water source heat pump room system is powered by wind and solar power generation or grid auxiliary 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 distribution cabinet.

[0014] Beneficial effects: This invention draws upon the principles of electrical engineering—two batteries connected in series to increase the total voltage and connected in parallel to increase the current—and the thermodynamic principle of a series-connected boiler raising the total outlet water temperature while maintaining constant pressure in the individual boiler. It provides a method for connecting two-stage water source heat pump units in series to increase the outlet water temperature, and innovatively constructs an integrated high-temperature water source heat pump room system for oily wastewater from oilfields. A prefabricated unit replaces a traditional civil engineering unit. Conventional water source heat pump units, heat exchangers, water pumps and auxiliary water supply equipment, and power distribution equipment are standardized and manufactured in a factory using mechanical tooling. Factory technicians assemble these components in the prefabricated unit, and after successful commissioning and operation, the system is shipped as a finished product. The integrated high-temperature water source heat pump room for oily wastewater from oilfields is delivered to the user's site and can be put into operation simply by connecting the power supply and pipelines. It not only has a high replication rate but also requires no maintenance and can be operated unattended. The factory has a dedicated engineer who uses a wireless remote monitoring after-sales service system to transmit all data, faults, operating information, and handling methods of the machine room to the user's mobile phone in real time, ensuring the safe and reliable operation of the integrated high-temperature water source heat pump room for oily wastewater from oilfields. Attached Figure Description

[0015] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0016] Appendix Figure 1 This is an example of an integrated high-temperature water source heat pump wastewater heating system for oily wastewater from oilfields.

[0017] Appendix Figure 2 Example of configuring a power distribution device for an integrated high-temperature water source heat pump system for oily wastewater in oilfields.

[0018] Appendix Figure 3 An example of configuring and installing an integrated high-temperature water source heat pump system for oily wastewater in an oilfield within a box-type machine room.

[0019] Appendix Figure 4 An example of configuring a remote power distribution, fire monitoring, and metering room for an integrated oilfield oily wastewater high-temperature water source heat pump room.

[0020] Appendix Figure 5 This is an example of an integrated high-temperature water source heat pump system for oily wastewater in oilfields for heating or hot water supply.

[0021] Appendix Figure 6 This is an example of an integrated high-temperature water source heat pump for heating or hot water supply of oily wastewater from an oilfield.

[0022] Appendix Figure 7This is an example of an integrated high-temperature water source heat pump for oily wastewater in oilfields, with single or dual units that can switch between heating and hot water supply.

[0023] Appendix Figure 8 This is an example of an integrated high-temperature water source heat pump single-unit wastewater heating system for oily wastewater from oilfields.

[0024] Appendix Figure 9 This is an example of an integrated high-temperature water source heat pump system for oily wastewater in oilfields, consisting of a corrosion-resistant evaporator and condenser, used as a single-unit wastewater heating system.

[0025] Appendix Figure 10 This is an example of using wind and solar green electricity to supply power to an integrated oilfield oily wastewater high-temperature water source heat pump room system.

[0026] Explanation of reference numerals in the attached figures: 1. Input heat exchanger; 2. Oily wastewater source circulation pump; 3. First oily wastewater connecting pipe; 4. Oily wastewater source circulation pump outlet; 5. Oily wastewater source circulation pump inlet; 6. Input heat exchanger primary side outlet; 7. Input heat exchanger primary side inlet; 8. Second oily wastewater connecting pipe; 9. Input heat exchanger secondary side outlet; 10. Input heat exchanger secondary side inlet; 11. First water source heat pump heat source water circulation pump; 12. First water source heat pump heat source water circulation pump inlet; 13. First water source heat pump heat source water circulation pump outlet; 14. First water source heat pump evaporator water source inlet; 15. First water source heat pump evaporator water source outlet; 16. First water source heat pump condenser hot water outlet; 17. First water source heat pump condenser hot water inlet; 18. First water... Source heat pump unit, 19. First and second source heat pump series circulation pump, 20. Inlet of first and second source heat pump series circulation pump, 21. Outlet of first and second source heat pump series circulation pump, 22. Source water inlet of second source heat pump evaporator, 23. Source water outlet of second source heat pump evaporator, 24. Hot water outlet of second source heat pump condenser, 25. Hot water inlet of second source heat pump condenser, 26. Inlet of second source heat pump hot water output circulation pump, 27. Outlet of second source heat pump hot water output circulation pump, 28. Second source heat pump unit, 29. Second source heat pump hot water output circulation pump, 30. Output heat exchanger, 31. Primary side hot water inlet of output heat exchanger, 32. Primary side hot water outlet of output heat exchanger. 33. Oily wastewater heating and circulating pump; 34. First oily wastewater heating and circulating pipe; 35. Wastewater inlet on the secondary side of the output heat exchanger; 36. Wastewater outlet on the secondary side of the output heat exchanger; 37. Inlet of the oily wastewater heating and circulating pump; 38. Outlet of the oily wastewater heating and circulating pump; 39. Second oily wastewater heating and circulating pipe; 40. Distribution cabinet; 41. Box-type computer room; 42. Power distribution remote transmission fire metering monitoring room; 43. High and low voltage cable trays; 44. High voltage distribution cabinet; 45. Low voltage distribution cabinet; 46. Automatic control cabinet; 47. Data remote transmission monitoring box; 48. Metering box; 49. Fire monitoring box; 50. Wiring hub cabinet; 51. Heating or hot water terminal equipment; 52. Inlet of heating or hot water terminal equipment; 53. Heating or 54. Hot water supply terminal equipment outlet; 55. Panoramic viewing and monitoring room of the machine room; 56. First oily wastewater source inlet interface; 57. Second oily wastewater source inlet interface; 58. Heating or heating terminal equipment interface; 59. First single / dual unit switching valve; 60. Second single / dual unit switching valve; 61. Third single / dual unit switching valve; 62. Fourth single / dual unit switching valve; 63. First water source heat pump condenser hot water output circulation pump; 64. First water source heat pump condenser hot water output circulation pump inlet; 65. First water source heat pump condenser hot water output circulation pump outlet; 66. First water source heat pump evaporator water source input circulation pump; 67. First water source heat pump evaporator water source input circulation pump inlet.68. Water source input circulation pump outlet of the evaporator of the first water source heat pump; 69. Hot water output circulation pump of the condenser of the first water source heat pump; 70. Hot water output circulation pump outlet of the condenser of the first water source heat pump; 71. Hot water output circulation pump inlet of the condenser of the first water source heat 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

[0027] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0028] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0029] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified. Furthermore, the terms "installed," "connected," and "linked" should be interpreted broadly; for example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] Appendix Figure 1This is an embodiment of an integrated high-temperature water source heat pump wastewater heating system for oily wastewater from an oilfield. The system includes an input heat exchanger 1, an oily wastewater source circulation pump 2, a first oily wastewater connecting pipe 3, an oily wastewater source circulation pump outlet 4, an oily wastewater source circulation pump inlet 5, an input heat exchanger primary side outlet 6, an input heat exchanger primary side inlet 7, a second oily wastewater connecting pipe 8, an input heat exchanger secondary side outlet 9, an input heat exchanger secondary side inlet 10, a first water source heat pump heat source water circulation pump 11, a first water source heat pump heat source water circulation pump inlet 12, a first water source heat pump heat source water circulation pump outlet 13, a first water source heat pump evaporator water source inlet 14, a first water source heat pump evaporator water source outlet 15, a first water source heat pump condenser hot water outlet 16, a first water source heat pump condenser hot water inlet 17, a first water source heat pump unit 18, a first and second water source heat pump heat source water series circulation pump 19, and a first and second water source heat pump heat source water series circulation pump inlet 20. The system consists of the following components connected in series: outlet 21 of the second source heat pump heat source water circulation pump, inlet 22 of the second source heat pump evaporator, outlet 23 of the second source heat pump evaporator, hot water outlet 24 of the second source heat pump condenser, hot water inlet 25 of the second source heat pump condenser, inlet 26 of the second source heat pump hot water output circulation pump, outlet 27 of the second source heat pump hot water output circulation pump, unit 28 of the second source heat pump, hot water output circulation pump 29 of the second source heat pump, output heat exchanger 30, primary side hot water inlet 31 of the output heat exchanger, primary side hot water outlet 32 ​​of the output heat exchanger, oily wastewater heating circulation pump 33, first oily wastewater heating circulation pipe 34, secondary side wastewater inlet 35 of the output heat exchanger, secondary side wastewater outlet 36 of the output heat exchanger, inlet 37 of the oily wastewater heating circulation pump, outlet 38 of the oily wastewater heating circulation pump, and second oily wastewater heating circulation pipe 39.

[0031] The input heat exchanger 1 is connected to the inlet 5 of the oily wastewater source circulation pump 2 via its primary side outlet 6 and the inlet 5 of the oily wastewater source circulation pump 2. The outlet 4 of the oily wastewater source circulation pump 2 is connected to the oily wastewater source of the oilfield via the first oily wastewater connecting pipe 3. The primary side inlet 7 of the input heat exchanger 1 is connected to the oily wastewater source of the oilfield via the second oily wastewater connecting pipe 8, forming the oily wastewater input end of the oilfield.

[0032] The input heat exchanger 1, made of corrosion-resistant materials, serves to isolate and exchange heat between the conventional water source heat pump unit and the highly corrosive oily wastewater source. This enables the extraction of heat energy from oily wastewater using an inexpensive, conventional water source heat pump unit. The corrosion-resistant materials include stainless steel, nickel-based corrosion-resistant alloys, and titanium alloys.

[0033] The secondary side outlet 9 of the input heat exchanger 1 is connected to the first water source heat pump inlet 12 of the first water source heat pump circulation pump 11. The first water source heat pump outlet 13 of the first water source heat pump circulation pump 11 is connected to the first water source heat pump evaporator water source inlet 14. The first water source heat pump evaporator water source outlet 15 is connected to the secondary side of the input heat exchanger through the secondary side inlet 10 of the input heat exchanger. Thus, the evaporator heat source water circulation of the first water source heat pump unit 18 is formed, and a heat exchange loop with oily wastewater is established.

[0034] The hot water outlet 16 of the first water source heat pump condenser is connected to the first and second water source heat pump series circulation pump 19 via the inlet 20 of the first and second water source heat pump series circulation pump. The outlet 21 of the first and second water source heat pump series circulation pump is connected to the second water source heat pump unit 28 via the water source inlet 22 of the second water source heat pump evaporator. The water source outlet 23 of the second water source heat pump evaporator is connected to the condenser of the first water source heat pump unit 18 via 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.

[0035] 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 hot water output circulation pump outlet 27 of the second water source heat pump hot water output circulation pump 29 is connected to the output heat exchanger 30 through the primary side hot water inlet 31. The primary side hot water outlet 32 ​​of the output 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, thus forming a skid-mounted high-temperature water source heat pump sewage heating system for oily wastewater.

[0036] The secondary side sewage inlet 35 of the output heat exchanger 30 is connected to the heating or heat supply terminal equipment interface 57 through the first oily sewage heating circulation pipe 34. The oily sewage heating circulation pump outlet 38 of the oily sewage heating circulation pump 33 is connected to the heating or heat supply terminal equipment interface 58 through the second oily sewage heating circulation pipe 39. The oily sewage heating circulation pump inlet 37 of the oily sewage heating circulation pump 33 is connected to the secondary side sewage outlet 36 of the output heat exchanger.

[0037] The output heat exchanger 30 is made of corrosion-resistant material. Through the output heat exchanger 30, the conventional water source heat pump can isolate and circulate the heating of oily wastewater from oil fields. More importantly, it is highly interchangeable, allowing replacement with standard conventional water source heat pump units, significantly reducing overall costs and extending the service life of oily wastewater source heat pump units.

[0038] Appendix Figure 1Its greatest benefit and advantage lies in the fact that the input heat exchanger 1 and the output heat exchanger 30 are made of corrosion-resistant materials, which effectively isolate and transfer heat from oily wastewater from oil fields that is highly corrosive to metals due to acidity, alkalinity, and salinity. Therefore, the first water source heat pump unit 18 and the second water source heat pump unit 28 can use inexpensive, standard, conventional water source heat pump units to heat oily wastewater from oil fields, meeting the high-temperature heating needs of various oily wastewater processes in oilfield production. The input heat exchanger 1 and the output heat exchanger 30 can be any type of corrosion-resistant heat exchanger; in this embodiment, a titanium alloy plate heat exchanger is used.

[0039] Appendix Figure 1 In oilfields, the temperature of oily wastewater is approximately 30-35°C. When using R22 refrigerant, a single water source heat pump unit with an evaporator operating at an oily wastewater inlet temperature of 30°C will have an evaporation temperature of 25°C and a condensation temperature of approximately 50°C. The highest condensate outlet temperature is 45°C; higher temperatures would compromise its economic efficiency and safety. If R134A refrigerant is used, the evaporation temperature is also around 25°C with the same oily wastewater inlet temperature, and the condensation temperature is approximately 60°C. The highest condensate outlet temperature is 55°C; higher temperatures would also compromise its economic efficiency and safety. Therefore, a single water source heat pump unit is ideal for heating applications. However, using it for high-temperature heating (around 80°C) in oilfield production processes is impossible and would pose a safety hazard. After the first water source heat pump unit 18 and the second water source heat pump unit 28 are connected in series, the second water source heat pump unit 28 uses the hot water output from the condenser of the first water source heat pump unit 18 as the input terminal for the evaporator heat source water of the second water source heat pump unit 28. If R134A refrigerant is used, and the inlet water temperature of the evaporator of the second water source heat pump unit 28 is 55℃, the evaporation temperature is 50℃, and the condensation temperature of the condenser is approximately 85℃. The highest outlet water temperature from the condenser is 80℃, and the unit operates very stably and reliably. Its energy efficiency is the same as when the output water temperature is 55℃. This is the advantage of operating two units in series, which is unmatched by any other unit structure.

[0040] Appendix Figure 2 This is an example of an integrated high-temperature water source heat pump system for oily wastewater in oilfields, configured with a power distribution unit. (Attached) Figure 2 It is attached Figure 1 Based on this, a distribution cabinet 40 is configured. The distribution cabinet 40 in the diagram can be selected as a 380V low-voltage cabinet or a 6600V or 10kV high-voltage cabinet, depending on the water source heat pump unit. Other details are attached. Figure 1 The same applies, so I will not repeat it.

[0041] Appendix Figure 3 Example of configuring and installing an integrated high-temperature water source heat pump system for oily wastewater in an enclosed equipment room. (Attached) Figure 3 Configure a box-type computer room 41, and attach Figure 1 Or attached Figure 2 The displayed equipment is installed in the box-type machine room 41, forming an integrated high-temperature water source heat pump machine room system for oily wastewater.

[0042] Appendix Figure 3 The complex construction, equipment installation, piping, power distribution, and cabling of existing civil-structured oily wastewater source heat pump room systems are all integrated into a containerized room 41, manufactured in a factory using production workshop machining equipment. This transforms on-site engineering construction for users into standardized factory production of integrated oily wastewater high-temperature water source heat pump room systems, sold as finished products. This avoids low-level manual work by construction workers, saving users significant upfront investment and enabling standardized product manufacturing and after-sales service.

[0043] Appendix Figure 4 Example of configuring a remote power distribution, fire protection, monitoring, and metering room for an integrated high-temperature water source heat pump room for oily wastewater in an oilfield. (Attached) Figure 4 To enhance safety and reliability, all electrical equipment within the containerized computer room 41 is integrated into the remote power transmission, fire protection, metering, and monitoring room 42, isolated from the water source heat pump units, pumps, and all circulating water pipelines. The high and low voltage cable trays 43, high-voltage distribution cabinets 44, low-voltage distribution cabinets 45, automatic control cabinets 46, remote data transmission monitoring boxes 47, metering boxes 48, fire protection monitoring boxes 49, wiring hub cabinets 50, and the panoramic monitoring room 54 are centrally and independently installed at one end of the containerized computer room 41. The other end is equipped with the water source heat pump units, heat exchangers, water pumps, circulating water pressure stabilizing filters, and a complete set of water circulation equipment, including collection and distribution stations, forming a complete integrated high-temperature water source heat pump computer room system for oily wastewater from oilfields. The panoramic monitoring room 54 allows users to view all data and operating status of all equipment in the computer room, as well as information requiring printing. It serves multiple purposes, including monitoring computer room operation and providing a rest area.

[0044] 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 cabinet 44 constitutes a 6600V or 10kV high voltage power supply and protection system. The low voltage distribution cabinet 45 constitutes a 380V, 220V, 24V, or 12V low voltage power supply system. The automatic control cabinet 46 implements a variable frequency automatic intelligent control system for water source heat pump units and pump equipment, realizing automatic energy-saving temperature control of high-temperature water source heat pumps for oily wastewater.

[0045] The integrated oily wastewater high-temperature water source heat pump room system, consisting of a 47-unit data remote transmission monitoring box, is a wireless remote transmission system that enables the monitoring of the system's operating data, fault information, and the start / stop of the unit via local area network or mobile communication control technology.

[0046] The metering box 48 enables the integrated high-temperature water source heat pump room system for oily wastewater, which records, calculates, and transmits power consumption data.

[0047] The fire monitoring box 49 enables the integrated high-temperature water source heat pump room system for oily wastewater, which includes fire safety monitoring and fire sprinkler functions.

[0048] The wiring hub cabinet 50 completes the integrated oily wastewater high-temperature water source heat pump room system, and performs the transmission cable hub connection function.

[0049] The panoramic monitoring room 54 can be used to view and print all data and information of the integrated oily wastewater high-temperature water source heat pump computer room system, or as a temporary rest and duty room.

[0050] Appendix Figure 5 This is an example of an integrated high-temperature water source heat pump system for oily wastewater in oilfields, used for heating or hot water supply. (Attached) Figure 5 It is attached Figure 1 Based on the existing system, the output heat exchanger 30 and the oily wastewater heating circulation pump 33 are removed, and a heating or hot water terminal device 51 is added to form an oily wastewater source heat pump heating or hot water supply system. Because the heating or hot water supply system does not have an oily wastewater heating function, and the fan coil units, radiators, or floor heating pipes used in the heating terminals, as well as the water tanks used in the hot water supply system, all use clean water, there is no need to configure a corrosion-resistant output heat exchanger followed by a heating pump. This significantly reduces the equipment cost of the integrated oily wastewater high-temperature source heat pump system for heating or hot water supply.

[0051] Appendix Figure 5 In the configuration of 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 standard water source heat pump units, which can be used in oilfield oily wastewater, urban sewage, bath center sewage, chemical wastewater, as well as waste hot water and sewage containing corrosive substances to metal materials, as users of water source heat pump scenarios, for high-temperature water heating applications.

[0052] Appendix Figure 6 This is an example of an integrated high-temperature water source heat pump for heating or hot water supply from oily wastewater in oilfields. (Attached) Figure 6 It is attached Figure 5Based on the display equipment, the first water source heat pump unit 18 eliminates the input heat exchanger 1 and the oily wastewater source circulation pump 2 (oily wastewater circulation equipment), as well as the output heat exchanger 30 and the corrosion-resistant isolation circuit equipment for the oily wastewater heating circulation pump 33. (Appendix) Figure 6 The first water source heat pump unit 18 of the display equipment uses a copper-nickel or titanium alloy tube or stainless steel plate heat exchanger assembled into a water source heat pump unit. This constitutes a water source heat pump unit resistant to oily wastewater corrosion, where oily wastewater directly enters the evaporator. The condenser is constructed using standard copper tubes. The second water source heat pump unit 28 uses conventional copper tubes for both its evaporator and condenser, forming a standard conventional high-temperature water source heat pump heating or hot water supply system to reduce system costs.

[0053] Appendix Figure 7 This is an example of an integrated high-temperature water source heat pump system for oilfield oily wastewater, with single or dual units that can switch between heating and hot water supply. (Attached) Figure 7 In the appendix Figure 6 The basic configuration includes a first single / dual unit switching valve 59, a second single / dual unit switching valve 60, a third single / dual unit switching valve 61, and a fourth single / dual unit switching valve 62. To meet users' actual energy-saving needs, a shared switching heating or hot water system is configured for single and dual units. During operation, the first single / dual unit switching valve 59 and the second single / dual unit switching valve 60 are closed, while the third single / dual unit switching valve 61 and the fourth single / dual unit switching valve 62 are opened, thus establishing a heating or hot water system powered by the first water source heat pump unit 18. The second water source heat pump unit 28 stops operating. (Appendix) Figure 7 When the first water source heat pump unit 18 is running as a single unit, the heating or hot water supply terminal equipment 51 has its heating or hot water supply equipment inlet 52 connected to its heating or hot water supply terminal equipment interface 57, and its heating or hot water supply equipment outlet 53 connected to its heating or hot water supply terminal equipment interface 58, so that the single unit can supply heat to the heating or hot water supply terminal equipment 51.

[0054] Appendix Figure 8 This is an example of an integrated high-temperature water source heat pump single-unit wastewater heating system for oily wastewater from oilfields. (Attached) Figure 8 It is attached Figure 3 Based on the display equipment, a first water source heat pump unit 18 is configured. The first water source heat pump unit 18 is a conventional standard water source heat pump unit. It utilizes input heat exchanger 1 and output heat exchanger 30 to resist corrosion from oily wastewater. Other features are attached. Figure 3 Same as above, will not be repeated.

[0055] Appendix Figure 9 Example of an integrated oilfield oily wastewater high-temperature water source heat pump single-unit wastewater heating system with corrosion-resistant evaporator and condenser. Appendix Figure 9 It is attached Figure 6Based on the display equipment, a first-source heat pump unit 18 is configured to form a single-unit operation high-temperature water source heat pump room system for oily wastewater from oilfields. Because a corrosion-resistant water source heat pump unit is used, the oily wastewater can directly enter the evaporator and condenser for operation.

[0056] Appendix Figure 10 It is attached Figure 3 Based on the display device, a wind power generation device 72 and / or a photovoltaic power generation device 73 are configured to supply power to the integrated oilfield oily wastewater high-temperature water source heat pump room system, using wind and solar green electricity as the main source. The power grid serves as an auxiliary power supply, and the power grid will supply power in case of problems with wind and solar power generation.

[0057] Because the wind power generation device 72 is extremely unstable due to the influence of wind conditions, but wind power has advantages such as small footprint and high power output, it can complement the photovoltaic power generation device 73 to overcome the shortcomings of photovoltaic power generation, which is affected by day and night conditions and cloudy, rainy, or snowy weather. If the wind source is stable, the wind power generation device 72 can be used independently to generate electricity, and the economic benefits are even more prominent. The wind power generation device 72 and / or photovoltaic power generation device 73 store energy through the wind-solar hybrid controller 74 and the battery energy storage device 75 to improve the stability of system power generation and supply. The DC power generated by the wind power generation device 72 and / or photovoltaic power generation device 73 is converted into AC power through the battery energy storage device 75 or directly through the inverter 76, and then supplied to the integrated oilfield oily wastewater high-temperature water source heat pump room system through the distribution cabinet 40.

[0058] The above-mentioned structures are not limited to outputting high-temperature water. Various outlet water temperatures can be set and adjusted according to user needs to further reduce operating costs.

[0059] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

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

2. The integrated high-temperature water source heat pump room system for oily wastewater from oilfields according to claim 1, characterized in that, It also includes the power distribution cabinet (40); The power distribution cabinet (40) connects 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 pump (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) via the required cables, and supplies power to the equipment connected thereto.

3. The integrated high-temperature water source heat pump room system for oily wastewater from oilfields according to claim 2, characterized in that, It also includes a containerized computer room (41); The box-type machine room (41) is equipped with the power distribution cabinet (40), the oily sewage 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 pump (19), the second water source heat pump unit (28), the second water source heat pump hot water output circulation pump (29), and the oily sewage heating circulation pump (33).

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

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

6. The integrated high-temperature water source heat pump room system for oily wastewater from oilfields according to claim 5, characterized in that, It includes a first water source heat pump unit (18), a first water source heat pump heat source water circulation pump (11), a first oily sewage connection pipe (3), and a second oily sewage connection pipe (8); The first water source heat pump evaporator water source outlet (15) of the first water source heat pump unit (18) is connected to the oily sewage source through the first oily sewage connection pipe (3); The first water source heat pump unit (18) has its first water source heat pump evaporator water source inlet (14) 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). 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 sewage source through the second oily sewage connection pipe (8).

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

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

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

10. The integrated high-temperature water source heat pump room system for oily wastewater from oilfields according to claim 3, characterized in that, include: Wind power generation device (72) and / or photovoltaic power generation device (73) and / or wind-solar hybrid controller (74), battery energy storage device (75) and 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 auxiliary power supply. The wind power generation device (72) is connected to the wind-solar hybrid controller (74), the photovoltaic power generation device (73) is connected to the wind-solar hybrid controller (74), the wind-solar hybrid controller (74) is connected to the connected 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 distribution cabinet (40).

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