Demineralized water, water purification special-purpose high temperature cooling unit
Technical field
The utility model relates to a kind of demineralized water, water purification high temperature cools off special-purpose unit, and particularly a kind of evaporimeter of high evaporation temperature, the design of OK suction superheat that adopts directly cools off, assists the high temperature energy-conservation, small investment of liquid-jet device to cool off unit.
Background technology
Common demineralized water, water purification high temperature cooling system are to be made of the parts such as stainless steel plate type heat exchanger that normal temperature handpiece Water Chilling Units (mainly comprising compressor, condenser, expansion valve and dry evaporator) and water pump, water water exchange.Wherein for guaranteeing demineralized water, water purification water quality, water pump connects into a closed cycle system with the stainless steel plate type heat exchanger of dry evaporator and the exchange of water water, by water pump the stainless steel plate type heat exchanger that the chilled water of dry evaporator is transported to the exchange of water water is carried out the secondary heat exchange, make the demineralized water of the stainless steel plate type heat exchanger of the water water exchange of flowing through reach the purpose of cooling.
Because demineralized water, water purification serviceability temperature height (being generally 15 ℃ ~ 30 ℃); the superheat steam temperature that enters compressor after the heat exchange is higher; and the higher meeting of suction temperature causes the compressor exhaust temperature protection to start; can only arrive 10 ℃ so normal temperature handpiece Water Chilling Units evaporating temperature is the highest; add the power of water pump, the Energy Efficiency Ratio of common demineralized water, water purification high temperature cooling unit is about 4.5.The unit power consumption is more, investment is bigger so common demineralized water, water purification high temperature cool off.
The utility model content
Technical problem to be solved in the utility model provides a kind of evaporating temperature height, and the demineralized water of less energy consumption, water purification high temperature cool off special-purpose unit.
Described demineralized water, water purification special-purpose high temperature cooling unit, comprise compressor, condenser, expansion valve, directly feed the evaporimeter and the auxiliary liquid-jet device of demineralized water or water purification, the outlet of described compressor connects condenser inlet by pipeline, be divided into two-way behind the condensator outlet pipeline drying filter, main road enters the mouth through the subcooled liquid that expansion valve connects evaporimeter, and the OK suction superheat gas vent of evaporimeter links to each other with the suction port of compressor again; Branch road connects the compressor gas supplementing opening through auxiliary liquid-jet device.
Above-mentioned auxiliary liquid-jet device is the hydrojet that sets gradually with magnetic valve and hydrojet expansion valve.
Above-mentioned evaporimeter is the stainless steel plate type evaporimeter of high evaporation temperature, the design of OK suction superheat.
Operation principle of the present utility model is: the high temperature and high pressure gas that compressor is discharged enters condenser, the cooling water of condenser of being flowed through is taken away heat, condensation becomes subcooled liquid, be divided into two the tunnel behind the drying filter: main road enters stainless steel plate type evaporimeter (a little refrigerant vapour is arranged) after expansion valve throttling step-down, absorption is inhaled in the compressor after flowing through and becoming the OK superheated steam behind the heat of stainless steel plate type evaporimeter demineralized water, thereby makes demineralized water, water purification obtain cooling; Branch road enters the hydrojet expansion valve through the hydrojet magnetic valve, enters the compressor gas supplementing opening after the throttling step-down.
The utility model compared with prior art, its remarkable advantage is: demineralized water, water purification are directly lowered the temperature through the stainless steel plate type evaporimeter of high evaporation temperature, the design of OK suction superheat, need not to adopt the water pump and the heat exchanger of secondary heat exchanging system, 15 ℃ ~ 30 ℃ demineralized water, water purification directly are provided; The auxiliary liquid-jet device that increases then can effectively reduce lubricating oil and delivery temperature, has improved the reliability of unit, has both guaranteed water quality requirement, has solved common demineralized water, water purification cooling unit big energy-consuming again, has invested a big difficult problem.The utility model unit adopts the stainless steel plate type evaporimeter of high evaporation temperature, the design of OK suction superheat, auxiliary liquid-jet device the evaporating temperature of unit can be brought up to 15 ℃ from 10 ℃, and the Energy Efficiency Ratio of unit is brought up to about 6 from 4.5.
Description of drawings
Fig. 1 is the utility model structural principle schematic diagram
Wherein: 1-stainless steel plate type evaporimeter, 2-expansion valve, 3-compressor, 4-condenser, 5-ball valve, 6-device for drying and filtering, 7-ball valve, 8-hydrojet magnetic valve, 9-hydrojet expansion valve.
The specific embodiment
With 920kW demineralized water shown in Figure 1, water purification special-purpose high temperature cooling unit is example, and it is mainly by Jiangyin BD stainless steel plate type evaporimeter 1; U.S. Sporlan expansion valve 2; Taiwan Hanbell helical-lobe compressor 3; Hangzhou SFT condenser 4; Zhejiang ARRON ball valve 5; France Carly device for drying and filtering 6; Zhejiang ARRON ball valve 7; Italy Castel hydrojet magnetic valve 8; U.S. Sporlan hydrojet expansion valve 9 is formed, wherein evaporimeter 1 directly feeds demineralized water or water purification, the outlet of compressor 3 connects condenser 4 inlets by pipeline, condenser 4 outlet lines divide two-way to divide two-way behind first ball valve 5, device for drying and filtering 6, second ball valve 7, main road enters the mouth through the subcooled liquid that expansion valve 2 connects evaporimeter 1, and the OK suction superheat gas vent of evaporimeter 1 links to each other with compressor 3 inlets again; Branch road is connected compressor 3 gas supplementing openings with hydrojet with expansion valve 9 with magnetic valve 8 through hydrojet.