CN206583289U - Baffle heater group arrangement structure - Google Patents

Abstract

A kind of baffle heater group arrangement structure, temperature-compensating when being heated for low temperature continuous vacuum heat processing furnace, it is adaptable to the heating chamber of front and back end evolution mouthful, it is characterised in that：By baffle heater in the upper and lower setting of heating chamber dragging roller, planar structure baffle heater is arranged on below dragging roller by the upper axial arranged three groups of inverted U baffle heaters in part, lower part；Each group baffle heater can independent temperature control；The baffle heater forward and backward group of inverted U opposite side increase convex-concave in the row of outside two in top is curved, makes the baffle heater after bending local close to warm area, the heat radiation density of increase herein；The outer panel spacing of group is intensive before and after the baffle heater of top, and the thermal compensation during heating of low temperature continuous vacuum heat processing furnace is solved the problems, such as less than remaining plate spacing, i.e., does not lengthen heating chamber length, does not also improve manufacturing cost.

Description

Baffle heater group arrangement structure

Technical field

The utility model is related to vacuum equipment, and the baffle heater for general low temperature continuous vacuum heat processing furnace is grouped cloth Put structure.

Background technology

With advances in technology with the raising of quality requirement, more users require that design meets the low temperature continous way of demand Vacuum drying oven, that is, it is≤± 3 DEG C to require temperature homogeneity, and requires that temperature uniformity reaches unanimity in specified temp interval, This temperature homogeneity to vacuum drying oven proposes higher requirement.

Conventional cryogenic continuous vacuum heat processing furnace, material is by heating chamber for convenience, and the continuous end of furnace heating chamber two needs Evolution mouthful, installs plate valve, and Conventional cryogenic continuous vacuum heat processing furnace can not meet temperature homogeneity requirement in the case.

The method that recent years, the country some low temperature continuous vacuum heat processing furnace user solved this problem is increase heating chamber Length, at the position of continuous furnace heating chamber both ends open more arrange that some heaters carry out compensation temperature loss, although the method It is feasible, but virtually due to adding heating chamber length, so that manufacturing cost is added, so it is not best solution.

The method that external vacuum industry solved this problem in terms of low temperature continuous vacuum heat processing furnace in recent years is：Using height The graphite heater used under temperature state replaces the heater used under low-temperature condition, and such a method is although feasible, but uses High temperature heater (HTH) makes manufacturing cost accordingly improve, so it is nor preferred plan.

The content of the invention

The purpose of this utility model is to provide a kind of baffle heater group arrangement structure, solves at low temperature continuous vacuum heat Thermal compensation problem during stove heat is managed, i.e., does not lengthen heating chamber length, does not also improve manufacturing cost.

The baffle heater group arrangement structure of utility model, temperature is mended when being heated for low temperature continuous vacuum heat processing furnace Repay, it is adaptable to the heating chamber of front and back end evolution mouthful, it is characterised in that：By baffle heater in the upper and lower setting of heating chamber dragging roller, on Planar structure baffle heater is arranged on below dragging roller by the axial arranged three groups of inverted U baffle heaters in part, lower part；Each group Baffle heater can independent temperature control；

The baffle heater forward and backward group of inverted U opposite side increase convex-concave in the row of outside two in top is curved, makes board-like after bending Heater is local close to warm area, the heat radiation density of increase herein；

The outer panel spacing of group is intensive before and after the baffle heater of top, less than remaining plate spacing.

The design of baffle heater arrangement of the present utility model it can be seen from institute's diagram, table example, on top Forward and backward group of inverted U opposite side increase convex-concave bending, it is local to lengthen baffle heater, also two groups before and after the baffle heater of top Outer panel spacing it is intensive, be all to expand heat dissipating mass, and the independent temperature control of upper and lower part baffle heater, according to temperature with When adjust each group heater power size, meet temperature homogeneity requirement, successfully solve low temperature continuous vacuum heat processing furnace The problem of temperature homogeneity is not up to standard, experimental result complies fully with index request, has reached the effect of temperature homogeneity≤± 3 DEG C Really.

Brief description of the drawings

Fig. 1 is board-like heater side schematic diagram in heating chamber；

Fig. 2 is the curved schematic cross-section of front and rear baffle heater convex-concave in heating chamber；

Fig. 3 is middle part baffle heater schematic cross-section in heating chamber；

Fig. 4 is that baffle heater overlooks expanded schematic diagram；

Fig. 5 is the board-like heater plane schematic diagram in bottom；

Fig. 6 is the even schematic view of the mounting position of thermometric；

Fig. 7 is to improve preceding 500 DEG C of temperature measurement datas；

Fig. 8 is 500 DEG C of temperature measurement datas after improving.

Wherein：1：Anterior plate valve；2：Upper front formula heater；3：Baffle heater in top；4：Upper rear panel Formula heater；5：Heating chamber；6：Rear portion plate valve；7：The baffle heater of bottom；8：Dragging roller.

Embodiment

The utility model baffle heater arrangement is illustrated below in conjunction with the accompanying drawings.

With the baffle heater group arrangement structure on low temperature continuous vacuum heat processing furnace：Fig. 1 and Fig. 2 are seen, due to thing Material is placed on dragging roller 8, and dragging roller 8 passes through heating chamber 5, as shown in figure 1, material needs to enter from the anterior plate valve 1 of heating chamber 5, Then gone out from the rear portion plate valve 6 of heating chamber 5, evolution mouthful is needed before and after such heating chamber 5, in this case before heating chamber Thermal loss is just had afterwards.Therefore by baffle heater be truncated into above and below two parts, one of feature is by positioned at heating chamber dragging roller 8 On baffle heater be made inverted U-shaped structure, baffle heater group 2,3,4 before, during and after upper part placement, two ends are curved in opposite directions Be converted into it is U-shaped, U types openend downwards, and installed in the axial both sides of heating chamber, the lower part of mounting plane structure below dragging roller Baffle heater 7.

Fig. 4 is latter three groups in showing before top inverted U baffle heater planar development state, arrangement top baffle heater 2nd, 3,4, the structure of top baffle heater：Every group is joined end to end by a slatted heater, is constituted four parallel rows, is often arranged plate The bending transition of formula heater turning.

As seen from Figure 4, the two of feature are the forward and backward group of baffle heater groups 2,4 of upper part placement between the row of outside two It is smaller than the spacing between remaining row's baffle heater.

The three of feature are to bend out inside convex-concave in the U-shaped opposite side of forward and backward two rows of the outside of baffle heater group 2,4 It is curved, make the baffle heater after bending local close to warm area, the heat radiation density of increase herein.Shown in Fig. 3, top is board-like to be added The U-shaped opposite side of hot device middle groups 3 is straight.

The four of feature be every group of baffle heater can independent temperature control, group power improves front and rear warm area before and after can increasing Temperature.

Preceding 500 DEG C of temperature measurement datas are improved from Fig. 7 can be seen that：Warm area midpoint C before Fig. 6, middle part warm area midpoint E, behind Warm area midpoint I all temperature are relatively low, in order to improve central point temperature, fall two groups before and after upper part baffle heater in the side of left and right two U-shaped opposite side increase convex-concave bending, the straight line of baffle heater middle groups 3 is constant, to compensate the temperature of center temperature measuring point, such as Fig. 2 With shown in Fig. 4.500 degree of 9 thermometrics experiments are carried out again, can be seen that from 500 DEG C of temperature measurement datas after Fig. 8 improvement：Fig. 6 warm areas Middle part temperature measuring point, the C points, E points, the temperature of I points is significantly improved, and experimental result makes us very satisfied, has reached expected Effect.

As shown in figure 5, the structure of Integral plate type heater 7 of lower part：The baffle heater of left and right two joins end to end composition One group, turning bending transition, the baffle heater plate spacing at two ends is intensive, less than the plate spacing of internal baffle heater, this The heat radiation density that design adds front and rear baffle heater is planted, the temperature before and after warm area is improved.

Claims (4)

1. baffle heater group arrangement structure, temperature-compensating when being heated for low temperature continuous vacuum heat processing furnace, it is adaptable to preceding The heating chamber (5) of rear end evolution mouthful, it is characterised in that：By baffle heater in the upper and lower setting of heating chamber dragging roller (8), upper part Planar structure baffle heater is arranged on below dragging roller (8) by axial arranged three groups of inverted U baffle heaters, lower part；Each group Baffle heater can independent temperature control, adjust each group heater power size at any time according to temperature, meet temperature homogeneity requirement.

2. baffle heater group arrangement structure as claimed in claim 1, it is characterised in that before upper part is axial arranged, in, Three groups of heaters (2,3,4) afterwards, two ends be bent into opposite directions it is U-shaped, U-shaped opening end downwards, and installed in the axial both sides of heating chamber.

3. baffle heater group arrangement structure as claimed in claim 1, it is characterised in that in inverted U baffle heater Forward and backward group (2,4) are curved in the inverted U opposite side increase convex-concave of the row of outside two, make the baffle heater after bending local close to temperature Area, the heat radiation density of increase herein.

4. baffle heater group arrangement structure as claimed in claim 1, it is characterised in that forward and backward group of top baffle heater The outer panel spacing of (2,4) is intensive, less than remaining plate spacing.