CN203177674U

CN203177674U - Industrial furnace flue gas waste heat collection device

Info

Publication number: CN203177674U
Application number: CN201320044158XU
Authority: CN
Inventors: 陈泽鹏; 李正宓
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-01-28
Filing date: 2013-01-28
Publication date: 2013-09-04
Anticipated expiration: 2023-01-28

Abstract

The utility model discloses an industrial furnace flue gas waste heat collection device and belongs to the field of waste heat recycling. The industrial furnace flue gas waste heat collection device comprises a heated area and a heat release area, wherein the heated area is arranged inside a frame, a plurality of heat pipes are arranged in the heated area, the condensation ends of the heat pipes stretch into the heat release area, and the two ends of the heated area are provided with a flue gas inlet and a flue gas outlet respectively. A water pipe assembly is arranged in the heat release area, the water pipe assembly comprises a plurality of rows of transverse pipe sets, each row of transverse pipe set is composed of an upper transverse pipe and a lower transverse pipe, a plurality of sleeve pipes are connected between each upper transverse pipe and each lower transverse pipe, the condensation end of each heat pipe stretches into one sleeve pipe, and in two adjacent rows of transverse pipe sets, the upper transverse pipe of the front row of transverse pipe set is communicated with the lower transverse pipe of the rear row of transverse pipe set through a down pipe. A water inlet and a water outlet are formed in the heat release area, and the water inlet and the water outlet are connected with the transverse pipe sets. The industrial furnace flue gas waste heat collection device has the advantages of being compact in structure, low in manufacturing cost, high in heat recovery efficiency, safe and reliable.

Description

Industrial furnace fume afterheat harvester

Technical field

The utility model relates to a kind of waste heat recovery apparatus, is specifically related to a kind of industrial furnace fume afterheat harvester.

Background technology

Industrial furnace flue gas typical temperature higher (400～800 ℃ or more than), flow is bigger, and conventional heat transmission equipment is difficult to be applied to the waste heat recovery of these flue gases, just can satisfy the demand because must adopt special version and expensive high temperature resistant steel to make.The air-water formula heat transmission equipment that in the past was used for recovery industrial furnace fume afterheat both at home and abroad has tubular heat exchanger and two kinds of forms of heat-pipe heat exchanger, the former flue gas flows through outside managing, water is walked in managing, because the higher high-temperature flue gas of flow velocity directly contacts with pipe outer wall, easily because producing localized heat stress and the hot flue gas stream tube wall that washes away, weares and teares, cause accidents such as " booster ", leakage, cause heat exchanger failure.Adopt the high temperature resistant stainless steel pipe and increase the water pipe wall thickness as heat exchanger, then certainly will increase the cost of heat transmission equipment greatly.Heat exchange of heat pipe carries out indirect heat exchange by some independently high-performance heat transfer components-heat pipes, in, low-temperature flue gas waste heat recovery field, it has the advantage that common tubular heat exchanger does not have, for example, because the cigarette G﹠W separates fully, be difficult for producing localized heat stress, and because the fume side resistance is very little, air-flow is not serious to washing away, wearing and tearing of tube wall, so be difficult for producing " booster " accident.Moreover, because the independence of heat pipe work, even if single heat pipe damages the work that does not also influence heat exchanger integral body.But, usually adopt heat-pipe heat exchanger to collect the used heat pipe of high-temperature flue gas waste heat, can not be with processing cost lower common " carbon steel-water heat pipe ", and must select for use with liquid metal etc. as working media, processing technology complexity, " high-temperature heat pipe " that involve great expense and adopt the high temperature resistant stainless steel material, thereby increased the investment of heat transmission equipment greatly.Therefore, cost height or security reliability do not ensure it is the ubiquitous problems of current all kinds of high-temperature flue gas waste-heat recovery devices.

Summary of the invention

The purpose of this utility model is to overcome the deficiencies in the prior art, provides a kind of cost low, safe and reliable, is applicable to the industrial furnace fume afterheat harvester that reclaims the high-temperature flue gas waste heat.

The utility model realizes that the technical scheme of above-mentioned purpose is:

A kind of industrial furnace fume afterheat harvester comprises the heat affected zone and the heat release zone that are located in the framework, wherein, is provided with many heat pipes in the heat affected zone, and the condensation end of this heat pipe extend in the heat release zone, and two of this heat affected zone arranges smoke inlet and exhanst gas outlet respectively; Be provided with conduit assembly in the heat release zone, this conduit assembly comprises multiple row transverse tube group, and each row transverse tube group is made up of upper lateral tube and lower transverse tubule, is connected with many sleeve pipes between this upper lateral tube and the lower transverse tubule, and the condensation end of each root heat pipe extend in the sleeve pipe; In the adjacent two row transverse tube groups, the upper lateral tube in the previous column transverse tube group is communicated with the lower transverse tubule of back in the one row transverse tube group by down-comer; Heat release zone is provided with water inlet and the delivery port that is connected with the transverse tube group.

A preferred version of the present utility model, wherein, conduit assembly is divided into two groups, and each group conduit assembly has independently water inlet and delivery port, makes to form the parallel-connection structure that goes with each other all the time in the heat release zone.Adopt the purpose of this technical scheme to be, industrial furnace flue-gas temperature height, flow are big, and the heat exchange amount is corresponding bigger, and it is also very big to be used for the discharge of conducting heat, if one group of conduit assembly is set in heat release zone in the usual way, like that, the flow resistance in the water pipe can be very big, and hydraulic pressure is very high, this both had been unfavorable for the safety in production of equipment, also cause heating system need dispose high-pressure circulation pump, increased system from electricity consumption, reduced energy-saving benefit; And be divided into two groups of conduit assemblies, it is two strands that current are divided equally, respectively from both sides into and out of heat release zone, thereby reduce the resistance of heat release zone water system greatly, both saved the power consumption of water pump, the conduit assembly caliber is diminished, overall structure is compacter.

A preferred version of the present utility model, wherein, the sidewall of framework by interior plate, outer panel and be located at interior plate and outer panel between adiabator layer constitute; The top board of framework by inside ceiling panel, roof sheet and be located at inside ceiling panel and roof sheet between adiabator layer constitute; The base plate of framework by inner bottom plating, Outer Bottom Plating and be located at inner bottom plating and Outer Bottom Plating between adiabator layer constitute.

A preferred version of the present utility model, wherein, left and right two interior plates of heat affected zone and inner bottom plating are provided with the corrugated structure at the two ends of flow of flue gas direction.Adopt the purpose of this technical scheme to be: by directly contacting high-temperature flue gas with left and right interior plate and the inner bottom plating of heat affected zone, when flue-gas temperature reaches 400～500 ℃, steel plate will produce significant thermal expansion and thermal stretching, will produce very big thermal stress, cause steel part distortion, device damage; And at the end of steel plate the corrugated structure is set, and can absorb the thermal expansion of steel plate, avoid thermal stress to the destruction of equipment, improved the security of equipment.

A preferred version of the present utility model, wherein, framework is provided with many buttress braces.Adopt the purpose of this technical scheme to be, can improve the intensity of framework on the one hand, increase bearing capacity, the weight of equipment can be evenly distributed on each bar buttress brace on the other hand, thereby solved the problem of framing component unbalance stress, guaranteed the safe handling of equipment.

The utility model compared with prior art has the following advantages:

1, because heat release zone of the present utility model adopts the sleeve type structure of particular design and the form of multi coil tread assembly arranged in series, the water tank type structure that has replaced common employing, guaranteed that heat exchange of heat pipe water side can bear 2.5MPa pressure, both ensured the security that heat transmission equipment uses, equipment is compacter, be beneficial to energy conserving system again and adopt high-temperature-hot-water or steam as heat transfer medium, obtain better energy-saving benefit;

2, by rational heat exchange design, the operating temperature of every carbon steel-water heat pipe is controlled in allowed limits all the time, thereby guarantee that heat pipe can be in high-temperature flue gas district operate as normal, so just do not need to adopt high-temperature heat pipe and the stainless steel material that involves great expense, not only guaranteed the reliability that equipment uses but also reduced cost;

3, the water pipe of heat release zone adopts being arranged in parallel of going with each other all the time, and has both reduced total water resistance of fume afterheat harvester water side, has saved the power consumption of water circulating pump, makes equipment compacter again;

4, corrugated is made at interior plate and the inner bottom plating two ends of heat affected zone contact high-temperature flue gas, be conducive to absorb thermal expansion and thermal stress, avoided the destruction of thermal stress to equipment, the security that has improved equipment, owing to replace stainless steel with the ordinary carbon steel plate, can reduce the cost of equipment simultaneously;

5, the novel Frame Design of this application has taken into full account the various unfavorable conditions under the condition of high temperature, by increasing crossbeam and strengthening heat insulation measure, the weight capacity of framework integral body and thermal stress resistance ability is strengthened, and has guaranteed the safe handling of equipment.

Description of drawings

Fig. 1 is the front view of a specific embodiment of industrial furnace fume afterheat harvester of the present utility model;

Fig. 2 is the left view of Fig. 1;

Fig. 3 is the vertical view of Fig. 1;

Fig. 4 is the structural front view of embodiment middle frame;

Fig. 5 is the left view of Fig. 4;

Fig. 6 is the vertical view of Fig. 4;

Fig. 7 is the structural front view of interior plate among the embodiment;

Fig. 8 is the left view of Fig. 7;

Fig. 9 is the vertical view of Fig. 7;

Figure 10 is the structural front view of embodiment middle line strake;

Figure 11 is the left view of Figure 10;

Figure 12 is the vertical view of Figure 10.

The specific embodiment

Be explained in detail below in conjunction with the specific embodiment of accompanying drawing to industrial furnace fume afterheat harvester of the present utility model.

Referring to Fig. 1 to 3, industrial furnace fume afterheat harvester of the present utility model is made of the heat affected zone 1 and the heat release zone 2 that are located in the framework 18, and wherein, heat affected zone 1 is positioned at the below, and heat release zone 2 is positioned at the top; Be provided with many vertically disposed heat pipes 3 in the heat affected zone 1, the condensation end of these heat pipes 3 extend into heat release zone 2; Two, front and back of this heat affected zone 1 arranges smoke inlet 10 and exhanst gas outlet 11 respectively, and the industrial furnace flue gas enters heat affected zone 1 from smoke inlet 10, and is discharged by exhanst gas outlet 11.Be provided with two groups of conduit assemblies that are positioned at the left and right sides in the heat release zone 2, each group conduit assembly comprises multiple row transverse tube group, each row transverse tube group is made up of upper lateral tube 5 and lower transverse tubule 4, be connected with many vertical sleeve pipes 6 between this upper lateral tube 5 and the lower transverse tubule 4, by this sleeve pipe 6 upper lateral tube 5 in the same row transverse tube group and lower transverse tubule 4 be communicated with; The condensation end of each root heat pipe 3 extend in the sleeve pipe 6, and namely sleeve pipe 6 is enclosed within the condensation end outside of heat pipe 3; In the adjacent two row transverse tube groups, upper lateral tube 5 in the previous column transverse tube group is communicated with lower transverse tubule 4 in the one row transverse tube group of back by down-comer 7, makes current in the whole circuitous fluidal texture of organizing upper lateral tube 5, lower transverse tubule 4, sleeve pipe 6 and down-comer 7 formation above-below directions in the conduit assembly.Each group is positioned in conduit assembly on the lower transverse tubule 4 of previous column transverse tube group water inlet 8 is set, and is positioned on the upper lateral tube 5 of last row transverse tube group to set out the mouth of a river 9; Make and form the parallel-connection structures that go with each other all the time in the heat release zone 2.

Referring to Fig. 1 to 6, framework 18 is rectangular configuration, the sidewall of this framework 18 by interior plate 12, outer panel 13 and be located at interior plate 12 and outer panel 13 between adiabator layer 21 constitute; The top board of framework 18 by inside ceiling panel 14, roof sheet 15 and be located at inside ceiling panel 14 and roof sheet 15 between adiabator layer 21 constitute; The base plate of framework 18 by inner bottom plating 16, Outer Bottom Plating 17 and be located at inner bottom plating 16 and Outer Bottom Plating 17 between adiabator layer 21 constitute.In addition, referring to Fig. 4, the top of framework 18, heat affected zone 1 are equipped with the many buttress braces made from I-steel or channel-section steel 19 with position, boundary and the bottom of heat release zone 2.

Referring to Fig. 7 to 12, left and right two interior plates 12 of described heat affected zone 1 and inner bottom plating 16 are provided with corrugated structure 20 at the two ends of flow of flue gas direction.

The operation principle of industrial furnace fume afterheat harvester of the present utility model is as follows:

High-temperature flue gas enters into heat affected zone 1 from smoke inlet 10, many heat pipes 3 take the heat in the high-temperature flue gas to the sleeve pipe 6 that is arranged in heat release zone 2, water in the heating muff 6, heated water is again through being positioned at the circuitous current that conduit assembly that heat release zone 2 is made of lower transverse tubule 4, sleeve pipe 6, upper lateral tube 5 and down-comer 7 forms above-below direction, the heat that will obtain from flue gas passes through hot water, transfer out the fume afterheat harvester through delivery port 9, then, by the heating network system delivery is used as producing with heat or for living area heating to other workshops of plant area.Discharge from exhanst gas outlet 11 through the flue gas behind the heat affected zone 1.

Above-mentioned is the utility model preferred implementation; but embodiment of the present utility model is not subjected to the restriction of foregoing; other any do not deviate from change, the modification done under spiritual essence of the present utility model and the principle, substitutes, combination, simplify; all should be the substitute mode of equivalence, be included within the protection domain of the present utility model.

Claims

1. industrial furnace fume afterheat harvester, comprise the heat affected zone (1) and the heat release zone (2) that are located in the framework (18), wherein, be provided with many heat pipes (3) in the described heat affected zone (1), the condensation end of this heat pipe (3) extend in the heat release zone (2), and the two ends of this heat affected zone (1) arrange smoke inlet (10) and exhanst gas outlet (11) respectively; It is characterized in that, described heat release zone is provided with conduit assembly in (2), this conduit assembly comprises multiple row transverse tube group, each row transverse tube group is made up of upper lateral tube (5) and lower transverse tubule (4), be connected with many sleeve pipes (6) between this upper lateral tube (5) and the lower transverse tubule (4), the condensation end of each root heat pipe (3) extend in the sleeve pipe (6); In the adjacent two row transverse tube groups, the upper lateral tube (5) in the previous column transverse tube group is communicated with lower transverse tubule (4) in the back row transverse tube group by down-comer (7); Described heat release zone (2) is provided with water inlet (8) and the delivery port (9) that is connected with the transverse tube group.

2. industrial furnace fume afterheat harvester according to claim 1, it is characterized in that, described conduit assembly is divided into two groups, and each group conduit assembly has independently water inlet (8) and delivery port (9), makes the parallel-connection structure that formation goes with each other all the time in the heat release zone (2).

3. industrial furnace fume afterheat harvester according to claim 1, it is characterized in that, the sidewall of described framework (18) by interior plate (12), outer panel (13) and be located at interior plate (12) and outer panel (13) between adiabator layer (21) constitute; The top board of described framework (18) by inside ceiling panel (14), roof sheet (15) and be located at inside ceiling panel (14) and roof sheet (15) between adiabator layer (21) constitute; The base plate of described framework (18) by inner bottom plating (16), Outer Bottom Plating (17) and be located at inner bottom plating (16) and Outer Bottom Plating (17) between adiabator layer (21) constitute.

4. industrial furnace fume afterheat harvester according to claim 3 is characterized in that, left and right two interior plates (12) of described heat affected zone (1) and inner bottom plating (16) are provided with corrugated structure (20) at the two ends of flow of flue gas direction.

5. industrial furnace fume afterheat harvester according to claim 1 is characterized in that, described framework (18) is provided with many buttress braces (19).