CN2859405Y - Heat pump drier with multi-current form - Google Patents

Abstract

The utility model relates to a heat pump dryer with multiple steams, which is improved on the basis of current heat pump dryer, the improvements lie in that: the object stage is provided with a movable upper turbogrid on the top and a lower air inlet at the bottom, which is connected with an air intake pipe via a lower air duct. The lower air inlet is arranged with a movable lower sealing plate, and the object stage on one side of the air intake pipe is provided with a plurality of rotating air valves. The object stage on one side of the air outtake pipe is also provided with a plurality of rotating air valves. Besides the advection drying, the utility model also realizes a drying mode of upper turbogrid drying and lower turbogrid drying, therefor enlarging the application on the material, facilitating to find out a more reasonable drying process and enhancing the product quality and the drying efficiency.

Description

Heat pump drier with multiple airflow pattern

Technical field

The utility model relates to dry materials equipment, particularly a kind of heat pump drier with multiple airflow pattern.

Background technology

Heat pump drier is a kind of dehumidification equipment that does not adopt heating wire heating or other thermal source radiation heating, this heat pump drier is by compressor, expansion valve, condensation fan, adjusting condenser, heat supply condenser, and the heat pump that evaporimeter and main air blower are formed constitutes with ajutage, backwind tube, hothouse, circulating fan and loading dish.The refrigeration system of the similar refrigerator of heat pump, alternately gasification and liquefaction when by compressor and expansion valve working media being circulated allows the evaporimeter cooling, the condenser heat supply.During heat pump drier work, make by circulating fan that air circulates in the machine between heat pump and hothouse, when air process evaporimeter, temperature drops to below the dew point, and folds moisture content, is discharged to the external world along drainpipe, wet heating such as the air process condenser surface after the removal moisture drying improve is sent to hothouse its year after the wet ability, be used to absorb the moisture content of material evaporation, the water that dry air draught drying chamber absorbs material through after flow back to evaporimeter, so circulate and make dry materials.Therefore, heat pump drier has that energy consumption is low, rate of drying can injure advantages such as material soon and not.Yet, also there is such problem in present this heat pump drier: in hothouse, air-flow only from object stage while flowing in addition, the upper strata that the dried forms of this advection can make every layer of material than lower floor is dry must be soon, raw meal particle size little its non-uniform phenomenon of healing is even more serious.In addition, gas advection form also exists outside the relatively poor deficiency of material shapes and granularity adaptability.

Summary of the invention

Existing heat pump drier uneven drying is even to be reached the relatively poor problem of material adaptability in order to solve, and the utility model provides a kind of heat pump drier with multiple airflow pattern.

Above-mentioned task realizes by this way: a kind of heat pump drier with multiple airflow pattern, comprise by compressor, expansion valve, condensation fan, regulate condenser, the heat supply condenser, heat pump and ajutage that evaporimeter and main air blower are formed, backwind tube, hothouse, circulating fan and object stage, but it is characterized in that the object stage top be provided with a translation open the object stage top on the percolation air intake plate, have a following air inlet in the object stage bottom, and be communicated with the air intake conduit by a following guide duct, be provided with shrouding under the activity on the air inlet down, a side that is connected with the air intake conduit at object stage begins upwards to be provided with several board-like rotary air valves from the bottom, when going to the upright position, this rotary air valve can close side air inlet, air outlet under the air intake conduit can be closed in the end when rotary air valve goes to horizontal level, equidistant being provided with in centre of a side that is connected with the air-out conduit at object stage is not less than two board-like rotary air valves at least, close when this rotary air valve upwards goes to the upright position and close air-out, close down air-out when going to the upright position downwards.

Operation principle of the present utility model is same as the prior art, just on airflow pattern except the advection dried forms, also set up last cross-flow drying and two kinds of pneumatic conveying drying forms of following cross-flow drying.When carrying out the advection drying, with the following shrouding of the last percolation air intake plate of object stage end face and bottom surface to closed condition, the rotary air valve of object stage both sides is threaded to level, dry air makes from ajutage and enters the air intake conduit, enter object stage from the air intake conduit again, flow out to the return air conduit from the air-out conduit and circulate material is carried out drying; When under the needs during cross-flow drying, to go up the percolation air intake plate closes, take out shrouding down, and the rotary air valve of air intake conduit one side closed, the rotary air valve of air-out conduit side is gone to closed condition counterclockwise, this moment, dry air just entered down guide duct from the air intake conduit, enter object stage from the luggage carrier bottom, enter the air-out conduit from object stage side top breach at last, so circulate, allow dry air be upward through material and carry out drying from the luggage carrier bottom; When on the needs during cross-flow drying, will go up the percolation air intake plate and open, will descend shrouding to close, again the rotary air valve of air intake conduit one side is closed, the rotary air valve of air-out conduit one side is gone to closed condition clockwise.At this moment, dry air enters object stage from the object stage top, and the breach from the object stage bottom sides enters the air-out conduit then, so circulates, and allows dry air enter from object stage and is passed down through object stage, and material is carried out drying.

From structure of the present utility model and working method as can be known, the utility model has three kinds of pneumatic conveying drying forms, can be according to the granularity of material, and form and humidity select best pneumatic conveying drying to form, and find out rational drying process, improve the matter and the drying efficiency of product.In addition, the utility model has also improved the adaptability to material.

Description of drawings

Fig. 1 is a kind of structural representation with heat pump drier of multiple air-flow formation.

Fig. 2 is for scheming A to partial sectional view.

Fig. 3 is figure B place enlarged drawing

Fig. 4 is the cutaway view of Fig. 3 along the C-C line.

Fig. 5 is figure D place enlarged drawing.

Fig. 6 is the cutaway view of Fig. 4 along E E line.

The specific embodiment

As shown in Figure 1, a kind of heat pump drier with multiple airflow pattern comprises by compressor 1, expansion valve 2, condensation fan 3, regulates heat pump, ajutage 8, backwind tube 9, hothouse 10, circulating fan 11 and object stage 12 that condenser 4, heat supply condenser 5, evaporimeter 6 and main air blower 7 are formed.The utility model the top of object stage 12 be provided with one can open object stage 12 tops on percolation air intake plate 13, have a following air inlet 14 in object stage 12 bottoms, this time air inlet 14 is communicated with air intake conduit 16 by a following guide duct 15, is being provided with shrouding 17 under the activity on the air inlet 14 down.A side that is connected with air intake conduit 16 at object stage 12 is provided with three board-like rotary air valves 18 from bottom to top, can close side air inlet when this rotary air valve 18 upwards turns over to the upright position, a rotary air valve 18 goes to the following air outlet that can close air intake conduit 16 when water level is put at the end.As Fig. 2 ~ shown in Figure 3, valve plate 19 outer ends of rotary air valve 18 have locating hole 20, be provided with arc location-plate 21 at object stage 12, on arc location-plate 21, have several locating holes 22 corresponding with locating hole 20, by a latch 23, two locating holes 20 and 22 are linked together locate.The centre of a side that is connected with air-out conduit 24 at object stage 12 is equidistant to be provided with two rotary air valves 25.When up turning to the upright position clockwise, this rotary air valve 25 can close air-out on the side of object stage 12, when rotary valve 25 can cut out air-out under the side of object stage 12 when hour hands are pass on to the upright position downwards against the wind.As Fig. 5 ~ shown in Figure 6, valve plate 26 outer ends at rotary air valve 25 have locating hole 27, on object stage 12, be provided with semicircle location-plate 28, on location-plate 28, have the locating hole 29 corresponding, by a latch 30 two locating holes 27 and 29 are linked together and locate with locating hole 27.

When implementing the utility model, preferably be provided with two hothouses 10, be in charge of 31 by air-supply respectively with the hothouse 10 of spline structure for two and be in charge of 32 with return air and be connected with backwind tube 9, be in charge of 31 junction in ajutage 8 and two air-supplies and be provided with an air-supply distributing valve 33 with ajutage 8.Adopt the benefit of two hothouses 10 to be: can select to knit the form difference except that the mobile shape of drying medium, the drying parameter that other conditionally completes are identical (as drying medium humiture, flow velocity etc.) is handled same batch materials, carries out the process characteristic contrast and draws reasonably drying process.

Claims (2)

1, a kind of heat pump drier with multiple airflow pattern, comprise by compressor (1), expansion valve (2), condensation fan (3), regulate condenser (4), heat supply condenser (5), heat pump and ajutage (8) that evaporimeter (6) and main air blower (7) are formed, backwind tube (9), hothouse (10), circulating fan (11) and object stage (12), it is characterized in that being provided with the last percolation air intake plate (13) of a parallel-moving type at object stage (12) top, have a following air inlet (14) in object stage (12) bottom, and be communicated with air intake conduit (16) by a following guide duct (15), be provided with shrouding (17) under the activity on the air inlet (14) down, a side that is connected with air intake conduit (16) at object stage (12) begins upwards to be provided with several board-like rotary air valves (18) from the bottom, equidistant being provided with in centre of a side that is connected with air-out conduit (24) at object stage (12) is not less than two board-like rotary air valves (25) at least.

2, heat pump drier according to claim 1, it is characterized in that hothouse (10) is two, two hothouses (10) are in charge of (31) by air-supply and are in charge of (32) with return air and are connected with backwind tube (9) with ajutage (8), and the junction of being in charge of (31) in ajutage (8) and two air-supplies is provided with an air-supply distributing valve (33).

Images