CN205332515U

CN205332515U - Hot -blast heat transfer device of shell and tube

Info

Publication number: CN205332515U
Application number: CN201521018329.7U
Authority: CN
Inventors: 许敬轩
Original assignee: 许敬轩
Current assignee: Shandong Jiale Electric Appliance Technology Co., Ltd.
Priority date: 2015-12-11
Filing date: 2015-12-11
Publication date: 2016-06-22
Anticipated expiration: 2025-12-11

Abstract

The utility model provides a problem that hot -blast heat transfer device of shell and tube, it relates to the hot -blast furnace, and it is insufficient that it has solved the burning of traditional device, and exhaust gas temperature is high, and the thermal efficiency is low, and the energy consumption is big. The utility model discloses an upper end at the heat exchange tube is established to the overhead gage, the lower extreme at the heat exchange tube is established to the baffle down, air baffle is a plurality of, it is indoor in the heat transfer to divide the horizontal dislocation set of multilayer, hot air exitus establishes at device casing left side middle part, dirt falls the room and establishes the below in second heat transfer room, the right side that falls the room at dirt is established to the draught fan interface, the air -blower interface is established on the casing of gas combustion room lower part, the first heat transfer room in the air baffle of the superiors below is established to the combustion chamber baffle, the adjacent department in second heat transfer room, it establishes between overhead gage and casing to go up the smoke chamber. The utility model discloses a heat -transfer surface is big, and the burning is abundant, and hot air temperature is high, and exhaust gas temperature is low, and the thermal efficiency is high, the advantage of be convenient for maintenance and clearance.

Description

A kind of shell and tube hot-blast heat exchange device

Technical field

This utility model belongs to hot air apparatus field, is specifically related to a kind of shell and tube hot-blast heat exchange device。

Background technology

Air stove is to utilize fuel to produce heat, forms hot blast, outwards transmit through piping after Cryogenic air is heated into high temperature air。Can be widely used for dehydrate, heating homoiothermic。At present, market is sold the air stove used with user, due to design unreasonable structure, it is common to there is following point: one, burn insufficient, high fume temperature, the thermal efficiency is low, and energy consumption is big；Two, flue dust is big, and environmental pollution is serious；Three, hot blast temperature is low, uses application to have limitation；Four, service life is short, even if using 301s stainless steel material manufacture also easily to burn；Five, local or individual part are fragile, it is impossible to change or repair, cause whole product rejection；Six, structure is complicated, bulky, and manufacturing cost is high。

Utility model content

This utility model is insufficient for solving the burning of existing hot-blast heat exchange device, and high fume temperature, the thermal efficiency is low, and energy consumption is big；Flue dust is big, and environmental pollution is serious；Hot blast temperature is low, uses application to have limitation；Service life is short, even if using 301s rustless steel also easily to burn；Local or individual part are fragile, it is impossible to change or repair, cause whole product rejection；Structure is complicated, bulky, the problem that manufacturing cost is high, it is provided that a kind of shell and tube hot-blast heat exchange device, and concrete technical scheme is as follows:

A kind of shell and tube hot-blast heat exchange device of the present utility model, it includes overhead gage, first lower baffle plate, second lower baffle plate, heat exchanger tube, air register, first Heat Room, second Heat Room, hot-blast outlet, first combustion-supporting hot air outlet, second combustion-supporting hot air outlet, falling dust room, air-introduced machine interface, aerator interface, combustor, upper smoke chamber, housing and Heat Room dividing plate, heat exchanger tube is vertically set in Heat Room, and overhead gage is located at the first Heat Room, the upper end of the second Heat Room, first lower baffle plate is located at the bottom of the first Heat Room, second lower baffle plate is located at the bottom of the second Heat Room, air register is multiple, multiple-layer horizontal is divided to shift to install in the first Heat Room and the second Heat Room, hot-blast outlet is located on the housing between the first lower baffle plate and the adjacent air register of the first Heat Room, falling dust room is located at the lower section of the second lower baffle plate of the second Heat Room, air-introduced machine interface is located at the right side of falling dust room, aerator interface is located on the housing between the second lower baffle plate of the second Heat Room and undermost air register, Heat Room dividing plate is located between the first Heat Room and the second Heat Room, Heat Room dividing plate upper end is connected with the air register of the superiors, and upper smoke chamber is located between overhead gage and housing。

The advantage of a kind of shell and tube hot-blast heat exchange device of the present utility model: one, independent fireworks channel and hot-air channel, it is ensured that hot blast cleaning, pollution-free；Two, high-temperature air combustion promoter, utilizes the hot blast of part air stove, and the burning for the solid of air stove, gas provides combustion air；Three, reverse heat-exchange, air and Gas phase Smoke are to flowing reverse heat-exchange, and air is by the hull outside entrance between the second Heat Room lower baffle plate and contiguous air register, the air of minimum temperature and low-temperature flue gas heat exchange, reduce further exhaust gas temperature, make use of heat energy greatly, air is repeatedly turned back, and heats up gradually, final high temperature air exports near combustor, make hot blast temperature higher, also strengthen the hot environment of combustor, make fuel combustion more abundant。It is little that this utility model also has small product size, and heat-transfer surface is big, extends combustion chamber high temperature district, sufficient combustion, and hot blast temperature is high, and exhaust gas temperature is extremely low, and the thermal efficiency is high, the advantage of convenient for maintaining and cleaning。

Accompanying drawing explanation

Fig. 1 is Facad structure schematic diagram of the present utility model, and Fig. 2 is the top view of Fig. 1, and Fig. 3 is the left view of Fig. 1, and Fig. 4 is the sectional view of A-A in Fig. 1, and Fig. 5 is the sectional view of B-B in Fig. 1。In figure, 5 is fire grate, and 6 is ash silo, and 7 is fire door, and 18 is fire door, and 20 is spacing catch。

Detailed description of the invention

Detailed description of the invention one: describe present embodiment in conjunction with Fig. 1, Fig. 2, Fig. 3, Fig. 4 and Fig. 5。Present embodiment is by overhead gage 1, first lower baffle plate 2-1, second lower baffle plate 2-2, heat exchanger tube 3, air register 4, first Heat Room 10, second Heat Room 11, hot-blast outlet 8, first combustion-supporting hot air outlet 9-1, second combustion-supporting hot air outlet 9-2, falling dust room 12, air-introduced machine interface 13, aerator interface 14, combustor 15, upper smoke chamber 16, housing 17 and Heat Room dividing plate 19 form, and heat exchanger tube 3 is vertically set in Heat Room, and overhead gage 1 is located at the first Heat Room 10, the upper end of the second Heat Room 11, first lower baffle plate 2-1 is located at the bottom of the first Heat Room 10, second lower baffle plate 2-2 is located at the bottom of the second Heat Room 11, air register 4 is multiple, multiple-layer horizontal is divided to shift to install in the first Heat Room 10 and the second Heat Room 11, hot-blast outlet 8 is located on the housing 17 between the first lower baffle plate 2-1 and the air register 4 closed on of the first Heat Room 10, falling dust room 12 is located at the lower section of the second lower baffle plate 2-2 of the second Heat Room 11, air-introduced machine interface 13 is located at the right side of falling dust room 12, aerator interface 14 is located on the housing 17 between the second lower baffle plate 2-2 and the undermost air register 4 of the second Heat Room 11, Heat Room dividing plate 19 is located between the first Heat Room 10 and the second Heat Room 11, Heat Room dividing plate 19 upper end is connected with the air register 4 of the superiors, upper smoke chamber 16 is located between overhead gage 1 and housing 17。

Detailed description of the invention two: describe present embodiment in conjunction with Fig. 2, Fig. 3 and Fig. 5。The present embodiment difference from detailed description of the invention one is in that it also includes the first combustion-supporting hot air outlet 9-1 and the second combustion-supporting hot air outlet 9-2, the first combustion-supporting hot air outlet 9-2 of combustion-supporting hot air outlet 9-1 and the second is located on the housing 17 of the first Heat Room 10 and is connected with the first Heat Room 10, first combustion-supporting hot air outlet 9-1 is connected with fire grate bottom ash silo 6, the second combustion-supporting hot air outlet 9-2 and combustion chamber。

Detailed description of the invention three: describe present embodiment in conjunction with Fig. 4 and Fig. 5。Heat exchanger tube described in present embodiment adopts resistant to elevated temperatures carborundum, corundum high-temperature heat exchange tube, carbon steel, boiler tube or stainless steel tube, or through high temperature resistant process, such as surface spraying high-temperature resistant coating。

Detailed description of the invention four: describe present embodiment in conjunction with Figure 4 and 5。In isosceles triangle, dislocation array is constituted heat exchanger tube 3 described in present embodiment, is conducive to the turbulent flow of air, accelerates the heat exchange of air and heat exchanger tube。

Detailed description of the invention five: describe present embodiment in conjunction with Figure 4 and 5。Heat exchanger tube 3 described in present embodiment can adopt fixing welding manner or take movable plug in construction, movable it is provided with spacing catch 20 on heat exchanger tube top, need not weld, it is conveniently replaceable, keeps in repair, owing to heat exchanger inner air pressure is more than flue gas pressures in smoke chamber, therefore, flue gas can not scurry into hot-air channel。Gap between heat exchanger tube and upper and lower baffle plate has air and enters in combustor 15, upper smoke chamber 16 as its oxygen-supplying combustion-supporting。

Operation principle:

The combustion system of this device is made up of fire grate, fire door, combustor, upper smoke chamber, ash silo, falling dust room；Combustor four wall and tube sheet bottom fire clay carry out smearing process。If there being external independent burning device, this combustor 15 is secondary combustion chamber or secondary furnace。

Heat Room dividing plate 19 is located between the first Heat Room and the second Heat Room, and dividing plate upper end is connected with the air register of topmost, makes heat exchanger be separated to form many backhauls, in order to reduce resistance, it is preferable that two return。

By heat exchanger tube, overhead gage, lower baffle plate, the air register of Heat Room dividing plate, multiple Multi-layer staggered arrangement and housing form the cavity of two top connections, and this cavity is air heat-exchange passage。

The flame of external combustor or burner is passed into the combustor of this product；Or deliver fuel on fire grate by external power feed device, under the effect of high temperature combustion air, full combustion of fuel, flue gas passes sequentially through the heat exchanger tube of the first Heat Room, upper smoke chamber, the heat exchanger tube of the second Heat Room, falling dust room through air-introduced machine discharge。In order to avoid heat losses, thermal insulation thermal insulation board is arranged at cavity four wall and the upper cover plate bottom of upper smoke chamber, and upper cover plate can whole dismounting, it is simple to maintenance, cleaning, changes heat exchanger tube 3。

Cold air is sent in heat-exchanger rig by aerator, when the air duct of the complications that the air register of the horizontal direction by multiple Heterogeneous Permutations is formed with Heat Room dividing plate and housing, constantly and heat exchanger tube heat exchange, air heats up gradually, and final high temperature air is exported by hot-blast outlet。Air register welds with device case, has not only acted as the effect of fixing heat exchanger tube, also facilitates heat exchanger tube to insert and changes。

Hot blast outfan housing is provided with the high temperature combustion air interface first combustion-supporting hot air outlet 9-2 of combustion-supporting hot air outlet 9-1 and the second, pass through connecting tube, first combustion-supporting hot air outlet 9-1 is connected with fire grate bottom ash silo, second combustion-supporting hot air outlet 9-2 and combustion chamber, use high-temperature air combustion promoter, accelerate the burning velocity of fuel, contribute to the abundant burning of fuel。

Take multiple heat exchanger tube, it is possible to being disperseed by flame, temperature is relatively uniform, it is to avoid heat exchanger tube, baffle plate are burnt by localized hyperthermia。

For preventing air stove housing heat loss and preventing from scalding people, hull outside can use refractory heat-insulating to process parcel, and outermost can have Package casing。

According to this principle, this device may be designed to single backhaul or many backhauls (three backhauls, four backhauls)。

The above; it is only this utility model preferably detailed description of the invention; but protection domain of the present utility model is not limited thereto; any those familiar with the art is in the technical scope that this utility model discloses; replaced according to the technical solution of the utility model, design or changed, all should be encompassed within protection domain of the present utility model。

Claims

1. a shell and tube hot-blast heat exchange device, it includes overhead gage, first lower baffle plate, second lower baffle plate, heat exchanger tube, air register, first Heat Room, second Heat Room, hot-blast outlet, first combustion-supporting hot air outlet, second combustion-supporting hot air outlet, falling dust room, air-introduced machine interface, aerator interface, combustor, upper smoke chamber, housing and Heat Room dividing plate, it is characterised in that: heat exchanger tube is vertically set in Heat Room, and overhead gage is located at the first Heat Room, the upper end of the second Heat Room, first lower baffle plate is located at the bottom of the first Heat Room, second lower baffle plate is located at the bottom of the second Heat Room, air register is multiple, multiple-layer horizontal is divided to shift to install in the first Heat Room and the second Heat Room, hot-blast outlet is located on the housing between the first lower baffle plate and the adjacent air register of the first Heat Room, falling dust room is located at the lower section of the second lower baffle plate of the second Heat Room, air-introduced machine interface is located at the right side of falling dust room, aerator interface is located on the housing between the second lower baffle plate of the second Heat Room and undermost air register, Heat Room dividing plate is located between the first Heat Room and the second Heat Room, Heat Room dividing plate upper end is connected with the air register of the superiors, and upper smoke chamber is located between overhead gage and housing。

2. a kind of shell and tube hot-blast heat exchange device according to claim 1, it is characterized in that: it also includes the first combustion-supporting hot air outlet and the second combustion-supporting hot air outlet, first combustion-supporting hot air outlet and the second combustion-supporting hot air outlet are located on the housing of the first Heat Room and are connected with the first Heat Room, first combustion-supporting hot air outlet is connected with fire grate bottom ash silo, the second combustion-supporting hot air outlet and combustion chamber。

3. a kind of shell and tube hot-blast heat exchange device according to claim 1, it is characterised in that: described heat exchanger tube adopts resistant to elevated temperatures carborundum, corundum high-temperature heat exchange tube, carbon steel, boiler tube or stainless steel tube。

4. a kind of shell and tube hot-blast heat exchange device according to claim 1, it is characterised in that: described heat exchanger tube is isosceles triangle Heterogeneous Permutation。