CN106440887B

CN106440887B - Heat exchanger for food baking and integrated preheating and baking equipment for heat exchange and heat dissipation

Info

Publication number: CN106440887B
Application number: CN201610881727.4A
Authority: CN
Inventors: 张宇
Original assignee: Dalian Saile Energy-Saving Equipment Co ltd
Current assignee: Dalian Saile Energy-Saving Equipment Co ltd
Priority date: 2016-10-09
Filing date: 2016-10-09
Publication date: 2019-06-14
Anticipated expiration: 2036-10-09
Also published as: CN106440887A

Abstract

The invention discloses a kind of food-baking heat exchangers, the food-baking heat exchanger, including top plate and bottom plate, side plate and the heat exchange partition being arranged between top plate and bottom plate, the heat exchange partition is fixed on side plate, space between top plate and bottom plate is divided into multiple medium layers by the heat exchange partition, and the heat exchange partition is made of metal foil or sheet metal.Also disclose a kind of heat exchange integrated heat dissipation formula prewarming baking equipment, including baking box, the lower part of baking box inner space is equipped with micropore ventilation terminal, the micropore ventilation terminal is connected with refrigerant exit, Heating medium is connected to by diversion pipe with the top of the inner space of baking box, air blower is equipped at the refrigerant inlet, the heating agent exit is equipped with air-introduced machine.The entire heat-exchange system of the present invention is not take up any exceptional space, makes full use of shell structure, makes the chassis warming-up device of roasting plant, the adiabatic heat-insulation equipment of roasting plant lower part and the pre-heater apparatus using waste gas recovery thermal energy.

Description

Food-baking heat exchanger and heat exchange integrated heat dissipation formula prewarming baking equipment

Technical field

The present invention relates to a kind of food baking equipments, and in particular to a kind of food-baking heat exchanger and the integrated heat dissipation that exchanges heat Formula prewarming baking equipment.

Background technique

Currently, existing food processing roasting plant can add food using the heat that burner combustion generates Work reduces heat loss to make full use of calory burning, needs to add heat exchanger as fresh air preheater, existing The preheater of closed warming-up device is externally positioned type.The fresh air blasted is preheated by the exhaust gas that burning generates, thus By the heat recovery in exhaust gas into fresh air, further utilized for equipment.In addition to heat source generates inside this roasting plant Outside thermal energy, remaining structure is radiator structure, can not provide additional thermal energy；Preheater is traditional type heat exchanger, is set with baking Back-up occupies exterior space from arrangement, and pipeline heat waste is huge, inefficiency；Air inlet system is separated with roasting plant, is removed It is inconsistent with heat flow field in original system outside high-temperature closed problem, can lead to burning it is insufficient, thus waste of energy.

Summary of the invention

The it is proposed of the present invention in view of the above problems, and a kind of food-baking heat exchanger of researching and designing and heat exchange integrated heat dissipation Formula prewarming baking equipment.The technological means that the present invention uses is as follows:

A kind of heat exchange integrated heat dissipation formula prewarming baking equipment, including baking box, the baking box is interior to be equipped with burner, The bottom of the baking box is equipped with food-baking heat exchanger, and the food-baking heat exchanger includes top plate and bottom plate, side plate And the heat exchange partition being arranged between top plate and bottom plate, the top plate is towards the inner space of baking box, the heat exchange partition Be fixed on side plate, the space between top plate and bottom plate is divided into multiple medium layers by the heat exchange partition, wherein heating agent layer and For refrigerant interlayer every setting, the medium layer of top layer is heating agent layer, and undermost medium layer is refrigerant layer, the bottom plate be equipped with The refrigerant inlet of undermost refrigerant layer connection and the heating agent being connected to undermost heating agent layer export, at the heating agent layer of top layer Equipped with Heating medium, it is equipped with refrigerant exit at the refrigerant layer of top layer, the heat exchange partition is made of sheet metal, the baking box The lower part of body inner space is equipped with micropore ventilation terminal, and the micropore ventilation terminal is connected with the refrigerant exit, the Heating medium It is connected to by diversion pipe with the top of the inner space of baking box, air blower is equipped at the refrigerant inlet, the heating agent goes out Air-introduced machine is equipped at mouthful.

Further, the heating agent layer is equipped with the divider I that heating agent layer is divided into bar shaped revolution runner, the refrigerant layer Equipped with the divider II that refrigerant layer is divided into bar shaped revolution runner.

Further, the divider I is longitudinally disposed, and the divider II is laterally setting, the divider I and point Parting bead II is flute profile aluminum alloy bar, and the fluting side of the flute profile aluminum alloy bar is arranged towards side.

Further, the heat exchange partition is bonded on side plate by high-temp glue.

Further, the top of the baking box inner space is equipped with micropore air suction device, and the Heating medium is by leading Flow tube is connected with the micropore air suction device.

Further, the two sides above food-baking heat exchanger are arranged in the micropore ventilation terminal.

Further, insulating layer is equipped with above the baking box, the outside of the diversion pipe is equipped with muff.

Further, the inner sidewall of the baking box is equipped with insulation board, and the insulation board includes metal shell and fills out Fill in the perlite in metal shell, the metal shell towards the one side material inside baking device be mirror face stainless steel.

Further, the air blower and air-introduced machine pass through wind channel tube respectively and are connected with heat exchanger, set on the wind channel tube There is interpolation slit, air door inserted sheet is inserted in the interpolation slit, the air door inserted sheet was equipped with wind aperture, and the both ends of the air door inserted sheet are set There is the fixed ear for being fixed on air door inserted sheet on wind channel tube.

Compared with the prior art, food-baking of the present invention heat exchanger and heat exchange integrated heat dissipation formula prewarming baking are set It is standby to have the advantage that

1, heat exchanger plays the role of adiabatic heat-insulation to entire baking box, and top layer is the heat that burning waste gas initially enters Matchmaker's layer, while being exchanged heat with refrigerant layer, radiates into baking box, forms the preheater knot that heat exchange is combined with heat dissipation Structure makes full use of the heat of burning waste gas；

2, the outermost layer of heat exchanger is the refrigerant layer that low temperature fresh air enters at first, and temperature is lower, therefore heat exchanger The heat that outer layer is distributed into air is few, reduces scattering and disappearing for heat；

3, entire heat-exchange system is not take up any exceptional space, makes full use of shell structure, makes roasting plant Chassis warming-up device, the adiabatic heat-insulation equipment of roasting plant lower part and the pre-heater apparatus using waste gas recovery thermal energy；

4,150 DEG C of roasting plant chassis temperature can be improved, greatly reduce the operating pressure of lower heat source equipment, promoted into Nearly 200 DEG C of temperature degree, makes to preheat efficiency higher than other types of preheater, make chassis and extraneous contact portion and extraneous temperature Difference is lower than 10 DEG C, greatly reduces the outside dispersed heat of system, the heat exchange efficiency of heat exchanger can reach 85% or more.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of food-baking heat exchanger described in the embodiment of the present invention.

Fig. 2 is the structural schematic diagram of lower number first layer medium layer (refrigerant layer) in the embodiment of the present invention.

Fig. 3 is the structural schematic diagram of lower number second layer medium layer (heating agent layer) in the embodiment of the present invention.

Fig. 4 is the structural schematic diagram of lower number third layer medium layer (refrigerant layer) in the embodiment of the present invention.

Fig. 5 is the structural schematic diagram of lower the 4th layer of medium layer (heating agent layer) of number in the embodiment of the present invention.

Fig. 6 is the structural schematic diagram of lower number layer 5 medium layer (refrigerant layer) in the embodiment of the present invention.

Fig. 7 is the structural schematic diagram of lower number layer 6 medium layer (heating agent layer) in the embodiment of the present invention.

Fig. 8 is the top view of Fig. 1.

Fig. 9 be described in the embodiment of the present invention exchange heat integrated heat dissipation formula prewarming baking equipment schematic perspective view (depending on Two face cabinet shells of line approach axis are not drawn into).

Figure 10 is the structural schematic diagram (two face cabinet shells of sight approach axis are not drawn into) at another visual angle Fig. 9.

Figure 11 be described in the embodiment of the present invention exchange heat integrated heat dissipation formula prewarming baking equipment schematic perspective view (no Containing baking box).

Figure 12 is the structural schematic diagram of wind channel tube described in the embodiment of the present invention and air door inserted sheet.

Figure 13 a to Figure 13 c is the structural schematic diagram of the different air door inserted sheets for crossing wind aperture.

Specific embodiment

As shown in Figures 1 to 8, a kind of food-baking heat exchanger 100, including top plate 101, bottom plate 102,103 and of side plate Heat exchange partition 104 between top plate 101 and bottom plate 102 is set, and the heat exchange partition 104 is fixed on side plate 103, described to change Space between top plate 101 and bottom plate 102 is divided into multiple medium layers by hot partition 104, and the number of plies of medium layer can be according to need It sets, the present embodiment is illustrated for six layers.Wherein heating agent layer 105 and the setting of the interval of refrigerant layer 106, the present embodiment are total Equipped with three layers of heating agent layer 105 and three layers of refrigerant layer 106, the tail end of the heating agent layer 105 of top layer and intermediate heating agent layer 105 is mutual The head end of connection, intermediate heating agent layer 105 and undermost heating agent layer 105 is interconnected, and correspondingly, refrigerant layer 106 is also head End, tail end are sequentially communicated as S-shaped integral passage.The medium layer of top layer is heating agent layer 105, and undermost medium layer is refrigerant layer 106, the bottom plate 102 is equipped with the refrigerant inlet 107 being connected to undermost refrigerant layer 106 and connects with undermost heating agent layer Logical heating agent exports 108, and Heating medium 109 is equipped at the heating agent layer 105 of top layer, is equipped at the refrigerant layer 106 of top layer cold Matchmaker outlet 110, the heat exchange partition 104 is made of metal foil, can be aluminium foil or copper foil, can also be made of sheet metal, can Think the thin slice of aluminium, copper or steel.Top layer is the heating agent layer 105 that burning waste gas initially enters, and is exchanged heat with refrigerant layer 106 While, it radiates into baking box, forms the preheater structure that heat exchange is combined with heat dissipation, make full use of the heat of burning waste gas Amount；Lowest level is the refrigerant layer 106 that low temperature fresh air enters at first, and temperature is lower, therefore the outer layer of heat exchanger is into air The heat distributed is few, reduces scattering and disappearing for heat.

The heating agent layer 105 is equipped with the divider I 111 that heating agent layer 105 is divided into bar shaped revolution runner, the refrigerant layer 106 are equipped with the divider II 112 that refrigerant layer 106 is divided into bar shaped revolution runner, the edge of heating agent layer 105 and refrigerant layer 106 Place is equipped with water conservancy diversion blend stop 113, and the runner that medium gradually back and forth flows is instigated in rotary current road.The divider I 111 is longitudinal sets It sets, flows burning waste gas back and forth in runner and promote from centre to two sides or promoted from two sides to centre.The divider II 112 be laterally setting, specially divider II 112 and the intermediate divider II 112 that is equipped with runner mouth of the both ends equipped with runner mouth Interval setting enters fresh air from the intermediate of one end, flows then to two sides to intermediate flow, and so on, gradually to The other end of refrigerant layer 106 elapses or fresh air first enters from the two sides of one end, to intermediate flow, then to two effluents It is dynamic, and so on, gradually elapsed to the other end of refrigerant layer 106.Since heat exchange partition 104 is metal foil, thickness is smaller, separates Item I 111 and divider II 112 make heat exchange more fully simultaneously medium layer is divided into strip runner, heat exchanging partition 104, that is, metal foil plays the role of support, and is successively arranged alternately in length and breadth, provides mesh-supported for metal foil, extension makes Use the service life.Divider I 111, divider II 112 and water conservancy diversion blend stop 113 use flute profile aluminum alloy bar in the present embodiment, and be open direction Side setting does not reduce heat exchange area and flow of media sectional area while effective support.

The heat exchange partition 104 is bonded on side plate 103 by high-temp glue, and high-temp glue high temperature resistant described in the present embodiment reaches 350 DEG C or more.

As shown in Figures 9 to 11, a kind of heat exchange integrated heat dissipation formula prewarming baking equipment, including baking box 200, the baking It is equipped with burner, including top burner 201 and lower burner (being not drawn into figure) in oven body 200, in the present embodiment, dries The through-hole 114 that the cartridge of roasting lower box passes through on heat exchanger is connected with lower burner, and the quantity of burner can basis It is set, lower burner is mostly two, three or four, and the burner of different number can set respective numbers Through-hole 114, the present embodiment is illustrated in case where two lower burners.The bottom of the baking box 200 is set There is food-baking heat exchanger 100 of the present invention, specific mating quantity, which can according to need, to be configured, and the present embodiment is every A baking box 200 is furnished with two sets of food-baking heat exchangers 100,101 direction of top plate of food-baking heat exchanger 100 The inner space of baking box 200, radiates into baking box, forms the preheater structure that heat exchange is combined with heat dissipation, sufficiently benefit Micropore ventilation terminal 202, the micropore cloth wind are equipped with the lower part of the heat of burning waste gas, 200 inner space of baking box Device 202 is connected with the refrigerant exit 110, and the Heating medium 109 is empty by the inside of diversion pipe 203 and baking box 200 Between top connection, air blower 204 is equipped at the refrigerant inlet 107, is equipped with air-introduced machine 205 at the heating agent outlet 108.

The top of 200 inner space of baking box is equipped with micropore air suction device 206, and the Heating medium 109 is by leading Flow tube 203 is connected (micropore air suction device 206 and micropore ventilation terminal 202 can be identical structure) with the micropore air suction device 206.

The two sides of 100 top of food-baking heat exchanger are arranged in the micropore ventilation terminal 202.

Insulating layer 207 is equipped with above the baking box 200, the outside of the diversion pipe 203 is equipped with muff.

The inner sidewall of the baking box is equipped with insulation board 208, and the insulation board 208 includes metal shell and is filled in Perlite in metal shell, the metal shell towards the one side material inside baking device be mirror face stainless steel.This implementation Example metal shell material be SUS304 mirror face stainless steel, heat source generate the warm plate 208 of infra-red radiation mirror-reflection after, A part is absorbed by production material, and a part is reflected into other mirror surfaces, is finally also absorbed by material after multiple reflections, and object is improved Expect the effect of absorptivity.

As shown in Figure 12 and Figure 13 a to Figure 13 c, the air blower 204 and air-introduced machine 205 respectively by wind channel tube 209 with Heat exchanger is connected, and the wind channel tube 209 is equipped with interpolation slit 210, and air door inserted sheet 211 is inserted in the interpolation slit 210, and the air door is inserted Piece 211 was equipped with wind aperture 212, and the both ends of the air door inserted sheet 211 are equipped with for air door inserted sheet 211 to be fixed on wind channel tube Fixed ear 213 on 209.The width of the interpolation slit 210 is 0-0.05 ㎜ bigger than the thickness of air door inserted sheet 211, preferably 0-0.02 ㎜. In the present embodiment, the air door inserted sheet 211 with a thickness of 1 ㎜, the width of the interpolation slit 210 is 1-1.02 ㎜, makes air door inserted sheet Gap between 211 and interpolation slit 210 is minimum, substantially eliminates the leakage of air quantity.The shape of the air door inserted sheet 211 is two mutual The shape that parallel line segment and two circular sliding slopes are formed, that is, a round both ends are respectively pruned and are formed after an arch Shape, the radian of circular arc portion and the outer radian of wind channel tube are corresponding, and the diameter of two circular arcs is slightly larger than the outer diameter of wind channel tube 209, The wind aperture 212 excessively is the round hole being arranged among air door inserted sheet 211, and the both ends of the air door inserted sheet 211 are respectively provided with one A or two fixed ears 213.The both ends that the fixed ear 213 is connected to air door inserted sheet 211 by connecting neck 214, the connection The width of neck 214 is less than the width of fixed ear 213, convenient for being bent when fixing.In use, selecting 212 area of wind aperture Suitable air door inserted sheet 211, is inserted into the interpolation slit 210 on wind channel tube 209, adjusts position, fixed ear 213 is bent, real The fixation of existing air door inserted sheet 211 can be solid by ipsilateral two for the air door inserted sheet 211 of four fixed ears 213 is arranged altogether Determine ear 213 to bend to different directions, enhances fixed effect.When needing to be adjusted mistake air quantity, original air door is unloaded Inserted sheet 211 selects suitable air door inserted sheet 211 to be inserted into fixed.

In use, the insertion interpolation slit 210 of air door inserted sheet 211 that selection is suitable, is fixed, starts air blower 204 and air inducing Machine 205, then fresh air enters undermost refrigerant layer 106 shown in Fig. 2, and edge by air blower 204 and refrigerant inlet 107 The flowing of direction shown in dotted line tip enters Fig. 4 institute by corner openings shown in Fig. 4 until flowing into two corners of figure top The second layer refrigerant layer shown, and flowed along direction shown in dotted line tip, until flowing into the middle section of figure lower section, and pass through Fig. 6 Shown in intermediate opening enter the refrigerant layer on upper layer shown in fig. 6, and flowed along direction shown in dotted line tip, until flowing to figure Two corners of top, and entered in baking box by refrigerant exit 110 shown in Fig. 8 and micropore ventilation terminal 202, for burning It uses.Correspondingly, high temperature combustion exhaust enters diversion pipe 203 from micropore air suction device 206 under the action of air-introduced machine, and passes through Heating medium 109 enters the heating agent layer 105 of top layer shown in Fig. 7, and flows along direction shown in dotted line tip, until flowing to figure The middle section on top, and pass through the heating agent layer 105 that opening flow to centre shown in fig. 5, and flow along direction shown in dotted line tip It is dynamic, until flowing to the corner lower part Liang Ge shown in figure, and the heating agent layer 105 of lower layer shown in Fig. 3 is flow to by opening, and edge The flowing of direction shown in dotted line tip, until flowing at heating agent outlet 108 and being flowed out by air-introduced machine.In above process, as The fresh air of refrigerant carries out exchanging for heat with the burning waste gas as heating agent, and fresh air is made to reach enough temperature for combustion It burns and uses, while reducing the temperature of burning waste gas, avoid effluent air temp excessively high, influence operating environment.

150 DEG C of roasting plant chassis temperature can be improved in the present embodiment, greatly reduces the operating pressure of lower heat source equipment, Nearly 200 DEG C of intake air temperature are promoted, preheating efficiency is made to be higher than other types of preheater, makes chassis and extraneous contact portion and the external world Temperature difference be lower than 10 DEG C, greatly reduce the outside dispersed heat of system, the heat exchange efficiency of heat exchanger can reach 85% or more.

Embodiment described above only describe the preferred embodiments of the invention, not to model of the invention It encloses and is defined, without departing from the spirit of the design of the present invention, those of ordinary skill in the art are to technical side of the invention The various changes and improvements that case is made should all be fallen into the protection scope that claims of the present invention determines.

Claims

1. A heat exchange and heat dissipation integrated type preheating and baking equipment, comprising a baking box body, a burner is provided in the baking box body, and it is characterized in that: the bottom of the baking box body is provided with food baking Using a heat exchanger, the heat exchanger for food baking includes a top plate, a bottom plate, a side plate and a heat exchange baffle plate arranged between the top plate and the bottom plate, the top plate faces the inner space of the baking box, and the heat exchange The heat baffle is fixed on the side plate, and the heat exchange baffle divides the space between the top plate and the bottom plate into a plurality of medium layers, wherein the heat medium layer and the refrigerant layer are arranged at intervals, and the uppermost medium layer is the heat medium layer, The lowermost medium layer is a refrigerant layer, the bottom plate is provided with a refrigerant inlet communicated with the lowermost refrigerant layer and a heat medium outlet communicated with the lowermost heat medium layer, and the uppermost heat medium layer is provided with a heat medium Inlet, the uppermost refrigerant layer is provided with a refrigerant outlet, the heat exchange baffle is made of metal sheet, the lower part of the inner space of the baking box is provided with a microporous air distributor, and the microporous air distributor is Connected to the refrigerant outlet, the heat medium inlet is communicated with the upper part of the inner space of the baking box through a guide pipe, a blower is arranged at the refrigerant inlet, and an induced draft fan is arranged at the heat medium outlet.

2 . The integrated heat exchange and heat dissipation preheating and baking equipment according to claim 1 , wherein the heat medium layer is provided with a dividing bar I for dividing the heat medium layer into strip-shaped rotating flow channels, and the refrigerant layer is 1. 3 . The layer is provided with a dividing bar II that separates the refrigerant layer into strip-shaped revolving flow channels.

3. The integrated heat exchange and heat dissipation preheating and baking equipment according to claim 2, characterized in that: said dividing bar I is arranged longitudinally, said dividing bar II is horizontally arranged, said dividing bar I and dividing bar II is a slot-shaped aluminum alloy strip, and the slotted side of the slot-shaped aluminum alloy strip is disposed toward the side.

4 . The integrated heat exchange and heat dissipation preheating and baking equipment according to claim 1 , wherein the heat exchange baffle is bonded to the side plate by high temperature glue. 5 .

5 . The integrated heat exchange and heat dissipation preheating and baking equipment according to claim 1 , wherein: the upper part of the inner space of the baking box is provided with a micro-porous air suction device, and the heat medium inlet passes through a flow guide. 6 . A tube is connected to the microporous aspirator.

6 . The integrated heat exchange and heat dissipation preheating and baking equipment according to claim 1 , wherein the microporous air distributors are arranged on both sides above the heat exchanger for food baking. 7 .

7 . The integrated heat exchange and heat dissipation preheating and baking equipment according to claim 1 , wherein: an insulation layer is provided above the baking box, and an insulation jacket is provided outside the guide pipe. 8 .

8. The heat exchange and heat dissipation integrated preheating and baking equipment according to any one of claims 1 to 7, characterized in that: an insulation board is provided on the inner side wall of the baking box, and the insulation board comprises The metal shell and the perlite filled in the metal shell, the surface of the metal shell facing the inside of the baking equipment is made of mirror stainless steel.

9 . The integrated heat exchange and heat dissipation preheating and baking equipment according to claim 8 , wherein the blower and the induced draft fan are respectively connected to the heat exchanger through an air duct pipe, and the air duct pipe is provided with a plug A damper insert is inserted into the insertion slot, the damper insert is provided with a ventilation opening, and both ends of the damper insert are provided with fixing ears for fixing the damper insert on the air duct.