CN104457384A - Heat exchanger support and heat exchanger component - Google Patents
Heat exchanger support and heat exchanger component Download PDFInfo
- Publication number
- CN104457384A CN104457384A CN201410834744.3A CN201410834744A CN104457384A CN 104457384 A CN104457384 A CN 104457384A CN 201410834744 A CN201410834744 A CN 201410834744A CN 104457384 A CN104457384 A CN 104457384A
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- heat exchanger
- crossbeam
- suspender belt
- bearing
- supporter
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Abstract
The invention discloses a heat exchanger support and a heat exchanger component. The heat exchanger component comprises a heat exchanger and multiple heat exchanger supports supporting the heat exchanger, wherein the heat exchanger is provided with a heat exchanger body. Each heat exchanger support comprises a suspender and a supporting body, wherein the supporting body is provided with a cross beam and a supporting pillar, one end of the suspender is installed on the cross beam of the supporting body, and the other end of the suspender is installed on the heat exchanger body to enable the heat exchanger to be suspended. Due to the fact that the heat exchanger is reversely suspended through the suspender and the supporting body, thermal expansion movement of the heat exchanger is facilitated, and the service life of the heat exchanger is prolonged.
Description
[technical field]
The present invention relates to a kind of heat exchanger bearing and heat exchanger assembly, particularly relate to a kind of heat exchanger assembly being convenient to exchange heat and the heat exchanger bearing can installed on heat exchangers.
[background technology]
Heat exchanger is the equipment partial heat of hot fluid being passed to cold fluid, also known as heat exchanger.
The application of heat exchanger widely, as heating radiator, the condenser in steam-turbine plant and the oil cooler etc. on space rocket of warming oneself in daily life, is all heat exchanger.It is also widely used in the industrial departments such as chemical industry, oil, power, atomic energy.Its major function ensures that technical process is to the specified temp required by medium, is also one of capital equipment improving energy utilization rate simultaneously.
Refer to No. 02258139.1st, the Chinese utility model patent in bulletin on November 5th, 2003, it discloses a kind of high-temperature heat-exchanging, this high-temperature heat-exchanging comprises base, movable supporting mechanism and heat exchanger body, and this heat exchanger body generally includes shell, tube sheet and heat exchanger tube; This shell is provided with inner chamber, is immobilizated on tube sheet in the inner chamber that described heat exchanger tube is contained in shell.Described base is provided with slideway, multiple movable supporting mechanism is provided with outside heat exchanger body, and this heat exchanger body expands with heat and contract with cold because the factors such as heat transmission produce, heat exchanger body can be driven to slide in slideway by this supporting mechanism, but, increase in the volume and heat exchange material of high-temperature heat-exchanging, overall weight with this high-temperature heat-exchanging is also increasing, and the weight of this heat exchanger body is applied on slideway completely, because of the increase of weight, increase the frictional resistance between supporting mechanism and slideway, thus the movement of movable supporting mechanism in slideway may be affected.With high-temperature heat-exchanging body when be heated inequality and produce tensile stress different, the phenomenon such as may to split because this supporting mechanism, in slideway, active deformation fully can not occur, affects the service life of high-temperature heat-exchanging.
Therefore, necessaryly existing high-temperature heat-exchanging assembly to be improved, to overcome defect of the prior art.
[summary of the invention]
Technical problem to be solved of the present invention is to provide a kind of heat exchanger bearing of increasing the service life and assembly thereof.
For solving the problem, the present invention adopts following technical scheme: a kind of heat exchanger bearing, be installed on heat exchanger, described heat exchanger bearing comprises suspender belt and supporter, this supporter has crossbeam and the pillar in order to support this crossbeam, described suspender belt one end is arranged on the crossbeam of supporter, and the other end is installed on heat exchangers, and the weighing apparatus beam connecting place of suspender belt and supporter is positioned at the upside of suspender belt and heat exchanger connecting place.
The further improved procedure of the present invention is: described suspender belt is iron chains or steel wire rope, and the two ends of suspender belt are located on crossbeam and heat exchanger respectively.
The further improved procedure of the present invention is: described suspender belt is several suspension ring, and the mutual vertical clasp in the ring section of every two adjacent suspension ring together.
For solving the problem, the present invention also can adopt following technical scheme: a kind of heat exchanger assembly, and it comprises: heat exchanger and support several heat exchanger bearings of this heat exchanger; Described heat exchanger is provided with heat exchanger body; Described heat exchanger bearing comprises suspender belt and supporter, and this supporter is provided with the pillar of crossbeam and supporting traverse, and described suspender belt one end is arranged on the crossbeam of supporter, and the other end is arranged on heat exchanger body, is vacant state to hang this heat exchanger.
The further improved procedure of the present invention is: described heat exchanger body is provided with several brace summer, and above-mentioned bearing settlement is in the downside of brace summer.
The further improved procedure of the present invention is: described suspender belt is iron chains or steel wire rope, and the two ends of suspender belt are located on crossbeam and heat exchanger respectively.
The further improved procedure of the present invention is: described suspender belt is that several suspension ring are formed, and the mutual vertical clasp in the ring section of every two adjacent suspension ring together.
The further improved procedure of the present invention is: described crossbeam is a pair setting, and is distributed in the both sides of heat exchanger body, and described pillar is arranged at the two ends of each crossbeam, and described suspender belt is arranged between this pair of posts.
The further improved procedure of the present invention is: described crossbeam is a pair setting, and is distributed in the both sides of heat exchanger body, and described pillar is distributed on crossbeam, and is provided with a suspender belt between every two pillars.
The further improved procedure of the present invention is: each heat exchanger bearing described is the both sides that gate frame-shaped is distributed in heat exchanger body, and each heat exchanger bearing comprises an above-mentioned crossbeam and is positioned at the above-mentioned pillar at crossbeam two ends, is provided with suspender belt in the gate frame of described bearing.
The further improved procedure of the present invention is: described heat exchanger body is provided with several brace summer, and above-mentioned heat exchanger bearing settlement is in the downside of brace summer.
Compared with prior art, heat exchanger bearing of the present invention and assembly thereof have following beneficial effect: hang flying shore heat exchanger by suspender belt and supporter, the expanded by heating being conducive to heat exchanger moves, and extend the service life of heat exchanger.
[accompanying drawing explanation]
Fig. 1 is the cross-sectional schematic of heat exchanger assembly of the present invention;
Fig. 2 is the schematic top plan view shown in Fig. 1;
Fig. 3 is the cross-sectional schematic of the exchanger tubes and tubesheets welding of heat exchanger of the present invention shown in Fig. 1;
Fig. 4 is the partial enlarged drawing at the place of A shown in Fig. 1;
Fig. 5 is the bearing suspension ring schematic diagram of heat exchanger assembly of the present invention;
Fig. 6 is the schematic diagram of the high-temperature region heat exchanger of heat exchanger assembly of the present invention shown in Fig. 1;
Fig. 7 is the partial enlarged drawing shown in Fig. 6;
Fig. 8 is the partial enlarged drawing at the place of B shown in Fig. 1;
Fig. 9 is the partial enlarged drawing at the place of C shown in Fig. 1;
Figure 10 is bearing the second embodiment of heat exchanger assembly of the present invention;
Figure 11 is the third embodiment of bearing of heat exchanger assembly of the present invention.
[detailed description of the invention]
Referring to shown in Fig. 1, is represent heat exchanger assembly 100 schematic diagram of the present invention; In the present embodiment, this heat exchanger assembly comprises heat exchanger and several heat exchanger bearing 200; Described heat exchanger comprises heat exchanger body and is connected to tube side imported equipments and parts 10 and the tube side spout member 20 at heat exchanger body two ends.
Refer to shown in Fig. 1 and Fig. 2, described heat exchanger body comprises base 30, high-temperature region heat exchanger 40, low-temperature space heat exchanger 50 and several expansion joint 60, and to be installed on base 30 and to support the brace summer 70 of high-temperature region heat exchanger 40 and low-temperature space heat exchanger 50.
High-temperature region heat exchanger 40 is positioned at the front portion of heat exchanger body, this high-temperature region heat exchanger 40 comprises the first high temperature section 41 of being positioned at front and is positioned at the first high temperature section 41 rear and the second high temperature section 42 communicated with the first high temperature section 41, described low-temperature space heat exchanger 50 is positioned at the rear portion of heat exchanger body, and this low-temperature space heat exchanger 50 has contiguous second high temperature section 42 and the first mutually through low-temperature zone 51 and be positioned at second low-temperature zone 52 at the first low-temperature zone rear portion.The outside of the first low-temperature zone 51, second low-temperature zone 52 of described first high temperature section 41, second high temperature section 42 and low-temperature space heat exchanger 50 is equipped with housing, several tube sheet and many heat exchanger tubes 90 are installed in each housing, tube sheet is provided with the multiple pores passed for heat exchanger tube, is called between pipe in the region between described heat exchanger tube 90.The following installation relation that this exchanger tubes and tubesheets is described for first high temperature section 41 in front, tube sheet in housing comprises the front tube sheet 80 and back tube sheet 81 that are positioned at rear and front end, heat exchanger tube 90 two ends are through the pore of forward and backward tube sheet 80,81, the two ends of heat exchanger tube 90 are provided with the mouth of pipe, the pore of this heat exchanger tube 90 one end mouth of pipe and back tube sheet 81 is fixedly connected to form sealing state (referring to shown in Fig. 3), the other end protrudes out forward through the pore of front tube sheet 80, and be flexibly connected with this front tube sheet, prevent both from being opened by drawing crack in heat rises by process, please be detailed later.
In the present embodiment, high-temperature region heat exchanger 40 and the low-temperature space heat exchanger 50 of this heat exchanger body are divided into two parts mutually, namely mutually separate from the second high temperature section 42 of high-temperature region heat exchanger 40 and the first low-temperature zone 51 of low-temperature space heat exchanger 50, improve volume excessive and be convenient to the transport effect of heat exchanger, and interconnected by intermediate connector and expansion joint 60 between this second high temperature section 42 and the first low-temperature zone 51 of low-temperature space heat exchanger 50, and form a space 101, the outside in this space 101 does not communicate with between pipe, thus flow through the heat exchanger tube 90 of high-temperature region heat exchanger 40 entered in this space 101 by heat transferring medium, and collect in this, be diverted in the heat exchanger tube 90 of low-temperature space heat exchanger 50 by this space 101, relative to existing heat exchanger, the present invention is conducive in this space 101, being done sufficient mixing by heat transferring medium, namely different being mixed by heat exchange medium temperature work of temperature after high-temperature region heat exchanger 40 is improved, realize by the equalizing temperature of heat transferring medium, to carry out next heat exchange program, can improve by heat transferring medium roughly the same by the temperature flowing into heat exchanger tube, heat exchanger tube is prevented to be heated uneven to front, the stretching generation fracture phenomena of back tube sheet.
Referring again to Fig. 1 and composition graphs 4, shown in 5, described heat exchanger is supported on several heat exchanger bearing 200, in the present embodiment, this heat exchanger bearing is gate frame-shaped, each heat exchanger seat supports is in the downside of brace summer 70, this heat exchanger bearing comprises suspender belt 201 and supporter 202, this supporter 202 is provided with crossbeam 203 and is supported in the pair of posts 204 at crossbeam 203 two ends, described suspender belt is iron chains or steel wire rope, in the present embodiment, suspender belt 201 is the iron chains that the mutual latch closure of several ringwise suspension ring 205 is formed together, and the ring section of adjacent suspension ring 205 vertically interlocks mutually, be conducive to the mobile space increasing adjacent suspension ring 205.Described crossbeam 203 is distributed in the both sides of heat exchanger body, and pillar 204 is settled at each crossbeam 203 two ends, and is provided with above-mentioned suspender belt 201 between this pillar 204.
In the present embodiment, described suspension ring 205 have and are positioned at two ends and semicircular in shape upper, lower lift ring 2050, 2051, and interlock with other suspension ring 205 respectively, be beneficial to the connection of suspension ring 205 and heat exchanger and crossbeam 203, namely upper lift ring 2050 is arranged on the crossbeam 203 of supporter 202, lower lift ring 2051 is connected on the heat exchanger body of heat exchanger, and upper lift ring 2050 and crossbeam 203 connecting place are positioned at the upside of lower lift ring 2051 and heat exchanger connecting place, hang completely on heat exchanger bearing 200 to make heat exchanger, namely in unsettled hanging state, thus, after the heat exchanger body expanded by heating of heat exchanger, relatively existing heat exchanger, the present invention can be convenient to heat exchanger body and move, and heat exchanger body can be prevented because of uneven rear rather of being heated, be conducive to the service life extending heat exchanger.
Shown in Fig. 1, the front upper end (i.e. the upper end of the first high temperature section 41) of described heat exchanger body has shell-side outlet 43, and the rear upper end (i.e. the upper end of the second low-temperature zone 42) of described heat exchanger body has shell side import 53.
Described first high temperature section 41 is connected with the heat exchanger tube of the second high temperature section 42, but all do not communicate with between the pipe of high-temperature region heat exchanger 40 and low-temperature space heat exchanger 50, and between first, second high temperature section and the sidewall of the second high temperature section and low-temperature space heat exchanger junction offers the manhole 102 being convenient to keep in repair.
Refer to Fig. 6, shown in 7, described heat exchanger comprises thermal insulating filling 82, metal platen 83 between adjacent heat exchange tubes further and is positioned at the outer and gear pipe 84 be set on heat exchanger tube 90 of metal platen; Described thermal insulating filling 82 is located between the first high temperature section 41 and tube side imported equipments and parts 10, and be arranged in described first high temperature section 41 back tube sheet 81 and be fixedly connected with one end of heat exchanger tube 90 (as being fixed together by welding manner), to make mutually to seal between heat exchange tube and tube, but the other end of heat exchanger tube 90 passes the pore of front tube sheet 80 and is not fixed together with front tube sheet 80, namely the pore on described front tube sheet 80 is slightly larger than the nozzle diameter of heat exchanger tube 90, so that heat exchanger tube movement mutually in the pore of front tube sheet; Mutually through for preventing between heat exchanger tube 90 and pipe, above-mentioned thermal insulating filling 82 is filled between heat exchanger tube, and be clamped between front tube sheet 80 and metal platen 83, with prevent from tube side imported equipments and parts 10 come by the impact of heat transferring medium to front tube sheet, and avoid front tube sheet or heat exchanger tube to be too heated, deform.
In the present embodiment, two-layer before and after this thermal insulating filling comprises, and one deck thermal insulating filling is resistance to erosion heat-barrier material (as cotton) above; Each gear pipe 84 is set in outside heat exchanger tube 90, and the mouth of pipe external diameter of heat exchanger tube 90 is slightly less than the internal diameter of gear pipe 84, and the external diameter keeping off pipe 84 is greater than the pore external diameter of pressing plate, departs from pressure guard, and gear pipe 83 and heat exchanger tube 90 is welded to each other and is fixed together.When high temperature by heat transferring medium after tube side imported equipments and parts enter high-temperature region heat exchanger 40, the resistance to erosion heat-barrier material of one deck can prevent from directly being washed away impact to front tube sheet by heat transferring medium above, and the thermal insulating filling of later layer can prevent the heat transferring medium between pipe from communicating with heat exchanger tube.
Refer to Fig. 1, 8, shown in 9, in the present embodiment, the front tube sheet 80 be arranged between the first high temperature section 41 and tube side imported equipments and parts 10 is not retained in together mutually with shell and tube side imported equipments and parts 10, namely be convexly equipped with protruding 105 by shell and be formed with host cavity 106 with outside, in the present embodiment, this projection is arranged in the inner chamber of shell ringwise, above-mentioned front tube sheet 80 is positioned at host cavity 106, namely described front tube sheet 80 by protruding 105 abut and prevent in front tube sheet inlet cavity, and the external diameter of described front tube sheet is less than the internal diameter of the host cavity 106 of shell, but be greater than the protruding internal diameter of 105 and the external diameter of tube side imported equipments and parts 10, therefore, front tube sheet 80 is limited between these the first high temperature section 41 and tube side imported equipments and parts 10, be conducive to front tube sheet be heated before and after expanding with heat and contract with cold time shrink freely.And this front tube sheet 80, thermal insulating filling 82 and metal platen 83 form a bobbin carriage, and the bearing 200 of similar heat exchanger seat structure is installed in the downside of bobbin carriage, under front tube sheet 80 and metal platen 83 are heated uneven situation, this bearing 200 be conducive to regulating front tube sheet 80 and metal platen 83 by thermal deformation, in case the excessive deformation of front tube sheet and metal platen.In the present embodiment, this seat supports is in the downside of front tube sheet 80.
If heat transferring medium is after high temperature heat exchange, flow out from the shell-side outlet 43 of the first high temperature section 41, therefore, at the shell of this shell-side outlet because being heated, and expand phenomenon, in the present embodiment, at the shell-side outlet 43 of described first high temperature section 41 in bell mouth shape, and be provided with several expansion joint 60 in bell mouth shape towards junction between end and pipe at this shell-side outlet 43, this expansion joint 60 is around the surrounding of shell-side outlet, relatively existing heat exchanger, expansion joint can improve the deformation of course outlet, when even the temperature on right side is greater than the temperature in left side, the dynamics be stretched on the right side of this will be greater than the position in left side, between this expansion joint 60 is arranged between adjustable first high temperature section and pipe, surrounding is heated uneven expanding with heat and contract with cold, prevent the factors such as front tube sheet 80 and shell are heated and split, extend the service life of heat exchanger.In the present embodiment simultaneously, these tube side imported equipments and parts and high-temperature region heat exchanger are interconnected by several expansion joint, described shell-side outlet parts and low-temperature space heat exchanger are also interconnected by several expansion joint, all can improve and because being heated inequality, cleavage phenomenon occur each other.
Above-mentioned embodiment is better embodiment of the present invention, and certain the present invention also can adopt following embodiment:
As shown in Figure 10, above-mentioned heat exchanger bearing also can arrange a pair, and is arranged on the both sides of heat exchanger respectively, the two ends of each crossbeam are by shore supports, several suspender belt is distributed between this pillar, and is interconnected with heat exchanger and crossbeam respectively, makes heat exchanger be in unsettled hanging state.
As shown in figure 11, above-mentioned heat exchanger bearing also can arrange a pair, and be arranged on the both sides of heat exchanger respectively, each crossbeam is that two ends are by shore supports, and between pillar, be provided with other pillars, and and be equipped with several suspender belt between each pillar, this suspender belt is interconnected with heat exchanger and crossbeam simultaneously, makes heat exchanger be in unsettled hanging state.
As: each gear pipe 84 forms horn mouth, and is set in outside heat exchanger tube 90, and the opening of gear pipe 84 is connected on pressing plate towards end, and gear pipe 84 and heat exchanger tube 90 is welded to each other and is fixed together
As: as described in suspender belt also can be annular steel cable form, this annular steel cable one end is arranged on crossbeam, the other end install on heat exchangers, make heat exchanger be in unsettled hanging state simultaneously.
For another example: the chain of described suspender belt also can, and be separately fixed on heat exchanger and bearing only by a pair mutual clasp of semicircular suspension ring together.
Claims (10)
1. a heat exchanger bearing, support heat exchanger, it is characterized in that: described heat exchanger bearing comprises suspender belt and supporter, this supporter has crossbeam and the pillar in order to support this crossbeam, described suspender belt one end is arranged on the crossbeam of supporter, the other end is installed on heat exchangers, and the weighing apparatus beam connecting place of suspender belt and supporter is positioned at the upside of suspender belt and heat exchanger connecting place.
2. heat exchanger bearing as claimed in claim 1, is characterized in that: described suspender belt is iron chains or steel wire rope, and the two ends of suspender belt are located on crossbeam and heat exchanger respectively.
3. heat exchanger bearing as claimed in claim 1, is characterized in that: described suspender belt is several suspension ring, and the mutual vertical clasp in the ring section of every two adjacent suspension ring together.
4. a heat exchanger assembly, it comprises: heat exchanger and support several heat exchanger bearings of this heat exchanger; Described heat exchanger is provided with heat exchanger body;
It is characterized in that: described heat exchanger bearing comprises suspender belt and supporter, this supporter is provided with the pillar of crossbeam and supporting traverse, described suspender belt one end is arranged on the crossbeam of supporter, and the other end is arranged on heat exchanger body, is vacant state to hang this heat exchanger.
5. heat exchanger assembly as claimed in claim 4, it is characterized in that: described heat exchanger body is provided with several brace summer, above-mentioned heat exchanger bearing settlement is in the downside of brace summer.
6. the heat exchanger assembly as described in claim 4 or 5, is characterized in that: described suspender belt is iron chains or steel wire rope, and the two ends of suspender belt are located on crossbeam and heat exchanger respectively.
7. the heat exchanger assembly as described in claim 4 or 5, is characterized in that: described suspender belt is that several suspension ring are formed, and the mutual vertical clasp in the ring section of every two adjacent suspension ring together.
8. heat exchanger assembly as claimed in claim 4, it is characterized in that: described crossbeam is a pair setting, and be distributed in the both sides of heat exchanger body, described pillar is arranged at the two ends of each crossbeam, and described suspender belt is arranged between this pair of posts.
9. heat exchanger assembly as claimed in claim 4, it is characterized in that: described crossbeam is a pair setting, and be distributed in the both sides of heat exchanger body, described pillar is distributed on crossbeam, and is provided with a suspender belt between every two pillars.
10. heat exchanger assembly as claimed in claim 4, it is characterized in that: each heat exchanger bearing described is the both sides that gate frame-shaped is distributed in heat exchanger body, and each heat exchanger bearing comprises an above-mentioned crossbeam and is positioned at the above-mentioned pillar at crossbeam two ends, is provided with suspender belt in the gate frame of described heat exchanger bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410834744.3A CN104457384B (en) | 2014-12-29 | 2014-12-29 | Heat exchanger bearing and heat exchanger assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410834744.3A CN104457384B (en) | 2014-12-29 | 2014-12-29 | Heat exchanger bearing and heat exchanger assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104457384A true CN104457384A (en) | 2015-03-25 |
| CN104457384B CN104457384B (en) | 2016-10-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410834744.3A Active CN104457384B (en) | 2014-12-29 | 2014-12-29 | Heat exchanger bearing and heat exchanger assembly |
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| Country | Link |
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| CN (1) | CN104457384B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106441640A (en) * | 2016-09-14 | 2017-02-22 | 中国成达工程有限公司 | Large methanol device intermediate heat exchanger inlet-outlet pipeline stress analysis method |
| CN108954366A (en) * | 2018-09-20 | 2018-12-07 | 哈尔滨锅炉厂有限责任公司 | A kind of support plate cooling device for coal-burning boiler tube-type air preheater |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201203370Y (en) * | 2008-05-09 | 2009-03-04 | 昆山市三维换热器有限公司 | Tube-type heat exchanger |
| CN201522213U (en) * | 2009-09-28 | 2010-07-07 | 倪加明 | Tube-plate-type heat exchanger cylinder body provided with compensating device |
| CN204421718U (en) * | 2014-12-29 | 2015-06-24 | 昆山市三维换热器有限公司 | Heat exchanger bearing and heat exchanger assembly |
-
2014
- 2014-12-29 CN CN201410834744.3A patent/CN104457384B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201203370Y (en) * | 2008-05-09 | 2009-03-04 | 昆山市三维换热器有限公司 | Tube-type heat exchanger |
| CN201522213U (en) * | 2009-09-28 | 2010-07-07 | 倪加明 | Tube-plate-type heat exchanger cylinder body provided with compensating device |
| CN204421718U (en) * | 2014-12-29 | 2015-06-24 | 昆山市三维换热器有限公司 | Heat exchanger bearing and heat exchanger assembly |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106441640A (en) * | 2016-09-14 | 2017-02-22 | 中国成达工程有限公司 | Large methanol device intermediate heat exchanger inlet-outlet pipeline stress analysis method |
| CN108954366A (en) * | 2018-09-20 | 2018-12-07 | 哈尔滨锅炉厂有限责任公司 | A kind of support plate cooling device for coal-burning boiler tube-type air preheater |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104457384B (en) | 2016-10-12 |
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