Double-effect heat pump for injecting outlet refrigerant steam of high-pressure generator
A technology of high-pressure generators and low-pressure generators, which is applied in the direction of machine operation, refrigerators, refrigeration components, etc., and can solve problems such as inability to directly recycle, limit application fields, etc.
Inactive Publication Date: 2013-11-20
刘辉
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Problems solved by technology
The low-pressure steam inhaled by the steam injection heat pump can be exhausted exhaust steam or flash steam generated by high-temperature condensed water. Since this type of heat pump can only recover steam, for low-temperature liquid waste heat, such as low-temperature hot water containing The heat cannot be recovered directly, which greatly limits its application fields.
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[0009] A double-effect heat pump that injects refrigerant vapor from the outlet of the high-pressure generator is realized in this way:
[0010] Structurally, it consists of high pressure generator 1, low pressure generator 2, first throttle valve 3, condenser 4, second throttle valve 5, evaporator 6, absorber 7, solution pump 8, first solution heat exchanger 9. The second solution heat exchanger 10 and the injector 11 are composed. The absorber 7 has a dilute solution pipeline which passes through the solution pump 8 and then respectively passes through the first solution heat exchanger 9 and the second solution heat exchanger 10 to generate high pressure. The device 1 communicates with the low-pressure generator 2, and the high-pressure generator 1 and the low-pressure generator 2 also respectively have concentrated solution pipelines to communicate with the absorber 7 through a solution heat exchanger 9 and the second solution heat exchanger 10, and the high-pressure generat...
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A double-effect heat pump for injecting outlet refrigerant steam of a high-pressure generator comprises the high-pressure generator, a low-pressure generator, a first throttling valve, a condenser, a second throttling valve, an evaporator, an absorber, a solution pump, a first solution heat exchanger, a second solution heat exchanger and an injector. Driving steam entering the injector injects refrigerant steam from the high-pressure generator into intermediate-pressure and intermediate-temperature steam which serves as a driving heat medium of the low-pressure generator after entering the low-pressure generator, value of high-quality driving steam and a low-temperature driving heat medium is developed fully, energy-saving benefit is maximized, high adaptability and flexible adjustment are realized, shortcomings of absorption heat pumps and steam jet heat pumps are overcome fully, and an application range of the heat pump technology in the energy-saving field is widened.
Description
technical field [0001] The invention belongs to the technical field of low-temperature waste heat utilization. Background technique [0002] Absorption heat pumps use thermal energy as power, and use the reverse Carnot cycle to transfer heat from low temperature to high temperature. It is especially suitable for occasions with a large amount of waste heat. The condensed state of waste heat can be gaseous or liquid. For the absorption heat pump with lithium bromide aqueous solution as the working medium, due to the physical properties of the working medium itself, the temperature and concentration of the solution itself are limited. In order to make the absorption heat pump operate in a reasonable temperature and concentration range and achieve the best Work efficiency, people have developed a double-effect absorption heat pump. At the same waste heat temperature, when the efficiency of the absorption heat pump increases, no matter which solution circulation is used, the requ...
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IPC IPC(8): F25B27/02F25B15/02F25B41/06F25B41/31
CPCY02B30/625Y02A30/274
Inventor 刘辉
Owner 刘辉