A heat pump system and drying system and method
A heat pump system, jet heat pump technology, applied in heat pump, drying gas arrangement, drying and other directions, can solve the problems of high energy grade waste, low grade, difficult to obtain recycling, etc., to reduce energy consumption, low operating cost, Excellent economical effect
Inactive Publication Date: 2015-08-12
UNIV OF SCI & TECH BEIJING
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Problems solved by technology
Like this, the original high-energy grade of supplying steam has just been wasted in vain.
On the other hand, the waste heat discharged from the process is also difficult to be recycled due to its low grade
Method used
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[0021] In order to further explain the technical means and effects of the present invention to achieve the intended purpose of the invention, the specific implementation, structure, characteristics and effects of the heat pump system proposed according to the present invention will be described in detail below in conjunction with the accompanying drawings and preferred embodiments. The description is as follows.
[0022] see figure 1 Shown is a flow chart of the heat pump system in Embodiment 1 of the present invention. The heat pump system proposed in this embodiment is composed of an absorber 10 , an evaporator 11 , a generator 20 , a flash tank 46 and a steam supply pipeline 40 .
[0023] The absorber 10 communicates with the evaporator 11 through a first passage 12 . An absorption solution is provided in the absorber 10 . The absorber is provided with an absorption heat exchanger 15, and the absorption heat exchanger 15 has a heat-carrying medium, and the high-temperat...
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The invention relates to a heat pump system, as well as a drying system and method. The heat pump system comprises an absorber, an evaporator, a generator and a flash tank; an absorption heat exchanger is arranged in the absorber, an evaporation heat exchanger is arranged in the evaporator, and a generation heat exchanger is arranged in the generator; the inlet of the generation heat exchanger is communicated with a feeding steam pipeline; the top outlet of the generator is connected with a process steam pipeline; the inlet of the flash tank is connected with the outlet of the generation heat exchanger through a pipeline which is provided with a drain valve and a throttle valve; the top outlet of the flash tank is connected with the process steam pipeline; the bottom outlet of the flash tank is connected with the inlet of the evaporator through a pipeline which is provided with a throttle valve; a water drainage pipeline is further arranged at the bottom of the flash tank. According to the heat pump system, heat pump cycle is driven by the pressure difference existed between feeding steam and process steam, so as to raise the temperature level of low-temperature waste heat, achieve the purpose of effective utilization of waste heat and improve energy utilization efficiency.
Description
technical field [0001] The invention relates to a heat pump technology in the field of thermal energy engineering, in particular to a novel heat pump, drying system and method using the pressure difference between supply steam and process steam as the driving force. Background technique [0002] The absorption cycle usually adopts a two-component absorption solution. It is customary to call the low-boiling point component as the working medium, and the high-boiling point component as the absorbent. water-lithium bromide working medium pair. The absorption heat pump system uses the characteristic that the absorption solution can precipitate the working medium vapor under certain conditions, and can strongly absorb the working medium vapor under another condition to realize refrigeration or heating. The existing absorption heat pump system mainly includes: a generator with a built-in heat exchanger, a condenser with a built-in heat exchanger, an evaporator with a built-in hea...
Claims
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IPC IPC(8): F25B30/06F26B21/00
Inventor 苏庆泉
Owner UNIV OF SCI & TECH BEIJING