Steam generator of air source, water source, ground source and residual heat source heat pump

Abstract

The invention discloses an air source, water source and ground source waste heat source heat pump steam generator which comprises a working medium evaporation heat exchanger, a high-pressure working medium liquid storage tank, an expansion machine, a working medium condensation heat exchanger, a low-pressure working medium liquid storage tank, a working medium solution pump, a condensate water heater, a negative-pressure spraying flash evaporator, a vacuum pump, a steam compressor and a tail end steam load. A working medium pipeline of a working medium evaporation heat exchanger is connected with a high-pressure working medium liquid storage tank, an expansion machine, a working medium condensation heat exchanger, a low-pressure working medium liquid storage tank and a working medium solution pump, and a water pipeline of the high-pressure working medium liquid storage tank is connected with a condensate water heater, a tail end steam load, a steam compressor, a negative pressure spray flash evaporator and a vacuum pump. Water pipelines of the working medium condensation heat exchanger, the circulating water pump, the water mixing valve and the condensate water heater are connected with the high-pressure working medium liquid storage tank, the electric heater and the expansion machine are in shaft connection to drive the steam compressor, low-temperature negative-pressure flash steam is compressed into high-temperature and high-pressure steam, steam is efficiently produced, and primary energy consumption is reduced.

Description

Technical Field

[0001] The invention relates to a steam generator, in particular to an air source, water source, ground source and waste heat source steam generator. Background Art

[0002] At present, all existing steam generators produce steam from primary energy sources such as coal, electricity, and oil, which consume a lot of primary energy and have a high cost for producing steam. Summary of the invention

[0003] The invention provides an air source, water source, ground source waste heat source heat pump steam generator, which relies on the low-temperature hot water produced by the air source, water source, ground source waste heat source heat pump to flash low-temperature negative pressure steam in a negative pressure spray flash evaporator, which is sucked in and compressed into high-temperature and high-pressure steam by a steam compressor. The high-temperature condensed water generated after the high-temperature and high-pressure steam releases heat in the terminal steam load is used to heat the working fluid solution in the high-pressure liquid storage tank that has absorbed heat from the air source, water source, and ground source waste heat source, thereby increasing the evaporation pressure and temperature of the working fluid solution. After the working fluid solution steam drives the steam compressor through the expansion machine shaft output, the working fluid solution steam is throttled and reduced in pressure, and heat is exchanged with circulating water in the working fluid condensation heat exchanger. The low-temperature circulating water after heat exchange is sprayed into the negative pressure spray flash evaporator to flash out low-temperature negative pressure steam, which is sucked in and compressed into high-temperature and high-pressure steam by the steam compressor. Steam is produced with high efficiency and low cost, which greatly reduces the consumption of primary energy and saves energy and reduces emissions. BRIEF DESCRIPTION OF THE DRAWINGS

[0004] Figure 1 This is the structural principle diagram of this invention.

[0005] In the figure: 1. working fluid evaporation heat exchanger, 2. high-pressure working fluid storage tank, 3. expander, 4. working fluid condensation heat exchanger, 5. low-pressure working fluid storage tank, 6. working fluid solution pump, 7. condensate heater, 8. negative pressure spray flash evaporator, 9. vacuum pump, 10. steam compressor, 11. terminal steam load, 12. condensate pump, 13. circulating water pump, 14. mixing valve, 15. electric heater.

[0006] The present invention will be further described below in conjunction with the accompanying drawings.

[0007] exist Figure 1In the invention, an air source, water source, ground source waste heat source heat pump steam generator comprises a working fluid evaporation heat exchanger 1, a high pressure working fluid storage tank 2, an expander 3, a working fluid condensation heat exchanger 4, a low pressure condensation storage tank 5, a working fluid solution pump 6, a condensate heater 7, a negative pressure spray flash evaporator 8, a vacuum pump 9, a steam compressor 10, a terminal steam load 11, a condensate pump 12, a circulating water pump 13, a mixing valve 14, an electric heater 15, a working fluid pipeline of the working fluid evaporation heat exchanger 1 is connected to the high pressure working fluid storage tank 2, a working fluid pipeline of the high pressure working fluid storage tank 2 is connected to the expander 3, a working fluid pipeline of the expander 3 is connected to the working fluid condensation heat exchanger 4, a working fluid condensation heat exchanger 4 is connected to the low pressure working fluid storage tank 5, a working fluid pipeline of the low pressure working fluid storage tank 5 is connected to the working fluid solution pump 6, a working fluid solution pump 6 is connected to the working fluid evaporation heat exchanger 1, and a working fluid evaporation The working fluid pipeline of heat exchanger 1 is connected to high-pressure working fluid storage tank 2, the water pipeline of high-pressure working fluid storage tank 2 is connected to condensing water heating 7 electric heater 15, the water pipeline of condensing water heater 7 is connected to condensing water pump 12, the water pipeline of condensing water pump 12 is connected to terminal steam load 11, the water pipeline of terminal steam load 11 is connected to steam compressor 10, the water pipeline of steam compressor 10 is connected to negative pressure spray flash evaporator 8, the water pipeline of negative pressure spray flash evaporator 8 is connected to vacuum pump 9 working fluid condensing heat exchanger 4, the water pipeline of working fluid condensing heat exchanger 4 is connected to circulating water pump 13, the water pipeline of circulating water pump 13 is connected to mixing water valve 14, the water pipeline of mixing water valve 14 is connected to negative pressure spray flash evaporator 8 condensing water heater 7, the water pipeline of condensing water heater 7 is connected to high-pressure working fluid storage tank 2, the water pipeline of high-pressure working fluid storage tank 2 is connected to electric heater 15, and the expander 3 shaft is connected to steam compressor 10.

Claims

1. An air source, water source, ground source waste heat source heat pump steam generator, characterized by: The air source, water source and ground source waste heat source steam generator comprises a working fluid evaporation heat exchanger 1, a high pressure working fluid storage tank 2, an expander 3, a working fluid condensation heat exchanger 4, a low pressure condensation storage tank 5, a working fluid solution pump 6, a condensate heater 7, a negative pressure spray flash evaporator 8, a vacuum pump 9, a steam compressor 10, a terminal steam load 11, a condensate pump 12, a circulating water pump 13, a mixing valve 14, and an electric heater 15. The working fluid pipeline of the working fluid evaporation heat exchanger 1 is connected to the high pressure working fluid storage tank 2, the working fluid pipeline of the high pressure working fluid storage tank 2 is connected to the expander 3, the working fluid pipeline of the expander 3 is connected to the working fluid condensation heat exchanger 4, the working fluid pipeline of the working fluid condensation heat exchanger 4 is connected to the low pressure working fluid storage tank 5, the working fluid pipeline of the low pressure working fluid storage tank 5 is connected to the working fluid solution pump 6, the working fluid pipeline of the working fluid solution pump 6 is connected to the working fluid evaporation heat exchanger 1, and the working fluid evaporation heat exchanger 1 is connected to the working fluid evaporation heat exchanger 1. The water pipeline of the high-pressure working fluid storage tank 2 is connected to the condensing water heater 7 and the electric heater 15. The water pipeline of the condensing water heater 7 is connected to the condensing water pump 12. The water pipeline of the condensing water pump 12 is connected to the terminal steam load 11. The water pipeline of the terminal steam load 11 is connected to the steam compressor 10. The water pipeline of the steam compressor 10 is connected to the negative pressure spray flash evaporator 8. The water pipeline of the negative pressure spray flash evaporator 8 is connected to the vacuum pump 9 working fluid condensation heat exchanger 4. The water pipeline of the working fluid condensation heat exchanger 4 is connected to the circulating water pump 13. The water pipeline of the circulating water pump 13 is connected to the mixing valve 14. The water pipeline of the mixing valve 14 is connected to the negative pressure spray flash evaporator 8 and the condensing water heater 7. The water pipeline of the condensing water heater 7 is connected to the high-pressure working fluid storage tank 2. The water pipeline of the high-pressure working fluid storage tank 2 is connected to the electric heater 15. The expander 3 shaft is connected to the steam compressor 10.

2. The air source, water source, ground source waste heat source heat pump steam generator according to claim 1 is characterized by: High-temperature condensed water is used to heat the working fluid solution at the bottom of the high-pressure working fluid storage tank after absorbing heat in the working fluid evaporation heat exchanger, thereby increasing the evaporation temperature and pressure of the working fluid solution.

3. The air source, water source, ground source waste heat source heat pump steam generator according to claim 1 is characterized by: The expander shaft output drives the steam compressor, which can save a part of the input power of the steam compressor.

4. The air source, water source, ground source waste heat source heat pump steam generator according to claim 1, characterized in that: The circulating hot water after heat exchange in the working fluid condensation heat exchanger is sprayed into the negative pressure spray flash evaporator. The negative pressure reduces the boiling point of the circulating hot water, and the sprayed tiny water mist particles increase the heat exchange area and improve the evaporation rate.

5. The air source, water source, ground source waste heat source heat pump steam generator according to claim 1, characterized in that: The use of a working fluid solution pump reduces the power consumption of the working fluid heating cycle.

6. The air source, water source, ground source waste heat source heat pump steam generator according to claim 1, characterized in that: The working fluid evaporation heat exchanger can absorb heat from air, water, soil, and waste heat.

Images