Evaporimeter
Technical field
The present invention relates to a kind of refrigeration plant and use evaporimeter, particularly a kind of evaporimeter that lever interlock shutter is arranged.
Background technology
In existing lever interlock shutter evaporimeter, the rotating shaft of blade of louver window and the vane end faces of rotating shaft place often have because of defrosting residual water low temperature freezes and are frozen on the shaft support plate, cause the automatic water defrosting of evaporimeter program normally not move.
In existing lever interlock shutter evaporimeter, the blade of louver window torsional rigidity is little, closes the torsional moment of shutter and can not effectively transmit along the length of blade direction, and shutter is closed not tight, and ventilative phenomenon is serious.Icing for preventing that the defrosting water droplet from leaking with the wind, have to reduce the defrosting water yield, cause evaporimeter defrosting overlong time, reduced the operational efficiency and the refrigerating capacity of evaporimeter.
Summary of the invention
The objective of the invention is: in order to overcome above deficiency; Provide a kind of blade of louver window not to be the technical scheme of the sharp freezing of defrosting residual water, the lever interlock shutter evaporimeter that can closely close, solved in the large-scale food sharp freezing device many group evaporimeters difficult problem of water defrosting poor reliability alternately automatically.
The object of the invention is realized through following technical scheme: a kind of lever interlock shutter evaporimeter; Comprise the evaporimeter of forming by the fin on evaporation tube, the evaporation tube, the feed pipe that links to each other with evaporation tube and muffler; The evaporimeter below is provided with water leg, discharge outlet and leg; The evaporimeter top is provided with defrosting water pipe and overhead guard plate; The evaporimeter both sides are provided with deep bead, are installed in shutter and gangbar, pull bar and the lever of sliding shutters on-off action on the deep bead, and there is fixedly water fender the shutter top.The blade of shutter is to be connected by the rectangular weldering of the rectangular and L shaped section sheet metal of Z-shaped section sheet metal; And form the thin walled hollow square tube and extend the both wings blade; The two ends of blade have rotating shaft and blade to be connected; The polytetrafluoroethylene (PTFE) end plate is arranged between blade and the deep bead, and the shaft support of blade is in the support holes of polytetrafluoroethylene (PTFE) end plate, and polytetrafluoroethylene (PTFE) end plate and deep bead are connected.Polytetrafluoroethylmaterial material is not hydrophilic; Polytetrafluoroethylene (PTFE) end plate surface at low temperatures has water freezing also fail to stick; Evaporimeter is when cold operation, and the defrosting residual water is frozen and do not caused freezing of rotating shaft, blade and polytetrafluoroethylene (PTFE) end plate, and the automatic water defrosting of evaporimeter program can orderly function.The thin walled hollow square tube section structure of blade makes blade that big torsional rigidity arranged; Close the torsional moment of shutter and can transmit effectively along the length of blade direction, thin-walled two fins have elasticity preferably, fit easily in wing edge; Shutter can closely be closed under the gangbar pulling; Can strengthen the defrosting water yield when evaporimeter carries out the water defrosting, shorten the defrosting time, improve the operational efficiency and the refrigerating capacity of evaporimeter.
Further improvement of the present invention is: the blade of shutter is by rectangular weldering connects through the rectangular and L shaped section sheet metal of Z-shaped section sheet metal of four road bendings, and forms thin walled hollow square tube extension both wings blade.When shutter was closed, lap-joint formed the two pass close opening of keeping out the wind at wing edge, and it is little to close the ventilative amount in back.Because the mutual faying surface in wing edge is little, do not have absorption and be stranded in the problem in the lap gap so be splashed to defrosting water on the blade, even lap-joint has local freezing, draw back easily because the face that freezes is little, so do not influence the normal unlatching of shutter.
Further improvement of the present invention is: the polytetrafluoroethylene (PTFE) end plate is provided with support holes, and first sealing ring is arranged in the support holes, and sealing ring stops the defrosting residual water entering support holes in polytetrafluoroethylene (PTFE) end plate and the slit, deep bead composition surface to be frozen.Polytetrafluoroethylene (PTFE) end socket sealing counterbore is arranged in the screw counter bore that polytetrafluoroethylene (PTFE) end plate and deep bead are connected, do not have the problem of being detained the defrosting water freezing.
Further improvement of the present invention is: the polytetrafluoroethylene (PTFE) end plate is the S-shaped module of profile, can save the consumption of polytetrafluoroethylmaterial material.
Further improvement of the present invention is: the blade of shutter is processed by the hot extrusion aluminium alloy extrusions of integral type, and advantage is to be fit to produce in batches lever interlock shutter evaporimeter and to reduce manufacturing cost.
Advantage of the present invention is: the blade of louver window torsional rigidity is big; Be prone to fit, evaporimeter is when cold operation, and the defrosting residual water is frozen and do not caused blade to freeze; The orderly function of the automatic water defrosting of evaporimeter program ability; And the defrosting water yield is big, shortens the defrosting time, improves the operational efficiency and the refrigerating capacity of evaporimeter.
Description of drawings:
Fig. 1: a kind of evaporation structure sketch map that lever interlock shutter is arranged;
The left view of Fig. 2: Fig. 1;
The partial enlarged drawing of Fig. 3: Fig. 1;
Fig. 4: the cross section structure sketch map of blade of louver window;
The left view of Fig. 5: Fig. 4;
The I broken section enlarged drawing of Fig. 6: Fig. 2;
Fig. 7: have the rectangular blade of louver window cross section structure sketch map of the Z-shaped section sheet metal of four road bendings;
Fig. 8: evaporimeter partial structurtes sketch map with the rectangular blade of louver window of the Z-shaped section sheet metal of four road bendings;
Fig. 9: the blade scheme of installation that sealing ring is arranged in the polytetrafluoroethylene (PTFE) end plate support holes;
Figure 10: the polytetrafluoroethylene (PTFE) end plate outline drawing of S-shaped module;
The left view of Figure 11: Figure 10;
Figure 12: the evaporimeter partial structurtes sketch map of the S-shaped module of polytetrafluoroethylene (PTFE) end plate;
Figure 13: the partial structurtes sketch map when the evaporimeter blade of louver window is opened;
Figure 14: the cross section structure sketch map of hot extrusion aluminium alloy extrusions blade of louver window;
Label among the figure: 1-evaporimeter; The 2-evaporation tube; The 3-fin; The 4-feed pipe; The 5-muffler; The 6-water leg; The 7-discharge outlet; The 8-leg; 9-defrosting water pipe; 10-overhead guard plate; The 11-deep bead; The 12-shutter; 13-is water fender fixedly; The 14-link mechanism; The 15-control operating rod; 16-first pull bar; 17-shoulders bar; 18-second pull bar; 19-the 3rd pull bar; The 20-gangbar; The 21-installing plate; The 22-blade; The Z-shaped section sheet metal of 23-is rectangular; 24-L shape section sheet metal is rectangular; The 25-swing arm; The 26-rotating shaft; 27-polytetrafluoroethylene (PTFE) end plate; 28-attaching nut; The 29-attachment screw; The 30-support holes; 31-is rectangular through the Z-shaped section sheet metal of four road bendings; 32-lap-joint; 33-first sealing ring; 34-polytetrafluoroethylene (PTFE) end socket; 35-second sealing ring; The 36-module; 37-hot extrusion aluminium alloy extrusions blade; The 38-shrouding.
The specific embodiment:
In order to deepen to understanding of the present invention, will combine embodiment and accompanying drawing that the present invention is made further detailed description below, this embodiment only is used to explain the present invention, does not constitute the qualification to protection domain of the present invention.
Embodiment 1:
A kind of lever interlock shutter evaporimeter (see Fig. 1, Fig. 2, Fig. 3); Comprise the evaporimeter of forming by the fin 3 on evaporation tube 2, the evaporation tube 2, the feed pipe 4 that links to each other with evaporation tube 2 and muffler 51; Evaporimeter 1 below is provided with water leg 6, discharge outlet 7 and leg 8, and evaporimeter 1 top is provided with defrosting water pipe 9 and overhead guard plate 10, and evaporimeter 1 both sides are provided with deep bead 11; Be installed in the shutter 12 on the deep bead 11; There is fixedly water fender 13 shutter top, and the shutter 12 of both sides is by the action of link mechanism 14 driven opening, link mechanism 14 by control operating rod 15, first pull bar 16, shoulder bar 17, second pull bar 18, the 3rd pull bar 19 and gangbar 20 and form; Each fulcrum connects for the hinges structure, and link gear 14 is fixed on the installing plate 21 of overhead guard plate 10 belows.The blade 22 of shutter 12 (is seen Fig. 4, Fig. 5) is connected by rectangular 24 welderings of Z-shaped section sheet metal rectangular 23 and L shaped section sheet metal, form the thin walled hollow square tube and extend the both wings blade; The two ends, hollow square tube place of blade 22 are provided with 38, two rotating shafts 26 of shrouding and are connected in respectively on the shrouding 38 at blade 22 two ends, are fixed with swing arm 25 on the blade 22; Link mechanism 14 pulling swing arms 25, the both wings of blade 22 rotate along the center line of rotating shaft 26, and shutter 12 can effectively be closed; 11 of blade 22 and deep beads have polytetrafluoroethylene (PTFE) end plate 27; Polytetrafluoroethylene (PTFE) end plate 27 is connected with deep bead 11, is fixed with attaching nut 28,29th on the deep bead 11, attachment screw.The rotating shaft 26 of blade 22 is bearing in (see figure 6) in the support holes 30 on the polytetrafluoroethylene (PTFE) end plate 27.Polytetrafluoroethylmaterial material has not water-wet behavior; Polytetrafluoroethylene (PTFE) end plate 27 surface at low temperatures has water freezing also fail to stick; Evaporimeter 1 is when cold operation; The defrosting residual water is frozen and is not caused freezing of rotating shaft 26, blade 22 and polytetrafluoroethylene (PTFE) end plate 27, and evaporimeter 1 automatic water defrosting program can orderly function.The thin walled hollow square tube section structure of blade 22 makes blade that big torsional rigidity arranged, and closes the torsional moment of shutter 12 and can transmit effectively along blade 22 length directions, and blade 22 is thin-walled two wing structures; Has elasticity preferably; Fit easily each other in the wing edge of each blade 22, shutter 12 can closely be closed under link mechanism 14 pullings, and evaporimeter 1 can strengthen the defrosting water yield when carrying out the water defrosting; Shorten the defrosting time, improved the operational efficiency and the refrigerating capacity of evaporimeter 1.
Embodiment 2:
With the difference of embodiment 1 be: the blade 22 of shutter 12 is that rectangular 24 welderings connect with L shaped section sheet metal by the Z-shaped section sheet metal rectangular 31 through four road bendings; Form the thin walled hollow square tube and extend both wings blade (see figure 7); Both wings rotate along the center line of rotating shaft 26, and shutter 12 can effectively be closed.When shutter 12 was closed, lap-joint 32 formed the two pass close opening (see figure 8) of keeping out the wind at wing edge, and it is little to close the ventilative amount in back.Because the mutual faying surface in wing edge is little, do not have absorption and be stranded in the problem in the lap gap so be splashed to defrosting water on the blade, even lap-joint has local freezing, draw back easily because the face that freezes is little, so do not influence the normal unlatching of shutter.
Embodiment 3:
With the difference of embodiment 1 or 2 be: first sealing ring, 33 (see figure 9)s are arranged in the support holes 30 of polytetrafluoroethylene (PTFE) end plate 27, and sealing ring 33 stops polytetrafluoroethylene (PTFE) end plate 27 interior icing with the defrosting residual water entering support holes 30 in the slit, deep bead 11 composition surface.Being connected has polytetrafluoroethylene (PTFE) end socket 34 sealing counterbores in screw 29 counterbores of polytetrafluoroethylene (PTFE) end plate 27 and deep bead 11, and polytetrafluoroethylene (PTFE) end socket 34 is provided with second sealing ring 35, does not have the problem of being detained the defrosting water freezing.
Embodiment 4:
With the difference of embodiment 1,2 or 3 be: polytetrafluoroethylene (PTFE) end plate 27 be the S-shaped module of profile 36 (see Figure 10, Figure 11, Figure 12 Figure 13), can save the consumption of polytetrafluoroethylmaterial material.
Embodiment 5:
With the difference of embodiment 1,2,3 or 4 be: the blade 22 of shutter 12 is that the integral type hot extrusion aluminium alloy extrusions that the thin walled hollow pipe extends both wings is processed (seeing Figure 14) by section; Advantage is to be fit to produce in batches the evaporimeter that lever interlock shutter is arranged, and reduces manufacturing cost.