CN209926936U - Smoke heat exchanger - Google Patents
Smoke heat exchanger Download PDFInfo
- Publication number
- CN209926936U CN209926936U CN201920613360.7U CN201920613360U CN209926936U CN 209926936 U CN209926936 U CN 209926936U CN 201920613360 U CN201920613360 U CN 201920613360U CN 209926936 U CN209926936 U CN 209926936U
- Authority
- CN
- China
- Prior art keywords
- heat exchanger
- tube
- flue gas
- base
- shell
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000000779 smoke Substances 0.000 title description 5
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 21
- 239000003546 flue gas Substances 0.000 claims abstract description 21
- 238000000034 method Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000003139 buffering effect Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000002918 waste heat Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000004939 coking Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010981 drying operation Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Abstract
A flue gas heat exchanger. Relates to a heat exchanger, in particular to a flue gas heat exchanger. The flue gas heat exchanger is simple in structure, improves connection reliability and prolongs service life. The heat exchanger comprises a shell, wherein an outlet and an inlet are respectively arranged in the front and back directions of the shell, square connecting circles are symmetrically arranged at the upper part and the lower part of the shell, and a plurality of parallel heat exchange tubes are arranged between one pair of the square connecting circles; the heat-shrinkable tube is sleeved on the base tube and the corrugated tube. The square connecting circle is provided with a through hole, and the base pipe is welded in the through hole. The height of the inlet is higher than the height of the outlet in the vertical direction. The heat exchanger is characterized by further comprising a supporting plate, the supporting plate is connected in the shell, a plurality of positioning holes are formed in the supporting plate, and the heat exchange tubes are arranged in the positioning holes in a one-to-one correspondence mode. The utility model discloses convenient processing, the operation is reliable.
Description
Technical Field
The utility model relates to a heat exchanger especially relates to gas heater.
Background
A flue gas heat exchanger (i.e. a flue gas cooler or a flue gas waste heat recoverer) is a heat exchange device which converts heat of waste flue gas into hot water and hot air required by production and life, or recovers waste heat of hot fluid. The heat of high-temperature or medium-temperature flue gas generated by an industrial kiln, a boiler, a coking furnace, a blast furnace or a metallurgical furnace is utilized to be subjected to heat exchange through a heat exchanger, the heat is recovered, and water or air is heated; the produced hot water, steam or high-temperature air can meet the requirements of domestic hot water, steam for heating and power generation or food material drying operation.
For example, the patent of the publication No. CN207716893U issued by the national intellectual property office 2018.08.10 and named as an industrial flue gas comprehensive treatment device processes flue gas through a heat exchanger I, which is convenient and reliable. However, at present, because a plurality of corrugated pipes are arranged in the heat exchanger, the heat exchanger is easy to shake in the long-term use process, and the reliability and the service life are reduced.
SUMMERY OF THE UTILITY MODEL
The utility model provides a to above problem, provide a simple structure, improve the connection reliability, improve life's gas heater.
The technical scheme of the utility model is that: the heat exchanger comprises a shell, wherein an outlet and an inlet are respectively arranged in the front and back directions of the shell, square connecting circles are symmetrically arranged at the upper part and the lower part of the shell, and a plurality of parallel heat exchange tubes are arranged between one pair of the square connecting circles;
the heat exchange tube comprises a pair of base tubes and a corrugated tube, the base tubes are connected to the square junction circle respectively, the corrugated tube is connected between the base tubes, an annular groove is formed in one end, facing the corrugated tube, of the base tube, the corrugated tube is sleeved on the annular groove, a gap is formed between the end face of the corrugated tube and the end face of the annular groove, and the wall thickness of the corrugated tube is smaller than that of the base tube;
the heat-shrinkable tube is sleeved on the base tube and the corrugated tube.
The square connecting circle is provided with a through hole, and the base pipe is welded in the through hole.
The height of the inlet is higher than the height of the outlet in the vertical direction.
The heat exchanger is characterized by further comprising a supporting plate, the supporting plate is connected in the shell, a plurality of positioning holes are formed in the supporting plate, and the heat exchange tubes are arranged in the positioning holes in a one-to-one correspondence mode.
Wherein, the two sides of the square connecting circle positioned at the lower part are respectively provided with a cleaning outlet.
In the working process of the utility model, hot flue gas is discharged from the inlet and the outlet of the shell, and cold flue gas is discharged from the lower part and the upper part of the shell (namely, through a plurality of heat exchange tubes between a pair of butt circles); the heat exchange tube comprises a pair of base tubes and a corrugated tube, and the base tubes are connected on the square connecting circle in a welding mode, so that the connection is reliable; the corrugated pipe is sleeved in the annular grooves of the base pipes, a distance is arranged between the two annular grooves, the expansion amount of the corrugated pipe (namely the corrugated pipe expands when heated) is reserved, and the buffering and positioning are reliable. Meanwhile, the heat-shrinkable tube is arranged on the base tube and the corrugated tube, so that the base tube and the corrugated tube can be conveniently and reliably wrapped, and the shaking phenomenon is avoided.
The utility model discloses convenient processing, the operation is reliable.
Drawings
Figure 1 is a schematic structural view of the present invention,
figure 2 is a top view of figure 1,
figure 3 is a schematic view of the internal structure of the housing,
figure 4 is a schematic view of the connection of a base pipe and a square-circle joint,
figure 5 is a schematic view of the construction of a heat exchange tube,
FIG. 6 is an enlarged view of a portion of FIG. 5 at A;
in the figure, 1 is the shell, 11 is the outlet, 12 is the inlet, 2 is the square-circle,
3 is a heat exchange tube, 31 is a base tube, 32 is a corrugated tube, 33 is an annular groove, 34 is a space, 35 is a heat shrinkable tube,
4 is a supporting plate, and 5 is a drain port;
the arrows in figure 2 represent the direction of the hot flue gas action,
the arrows in figure 3 represent the direction of cold flue gas movement.
Detailed Description
The utility model is shown in figures 1-6 and comprises a shell 1, wherein an outlet 11 and an inlet 12 are respectively arranged in the front and back direction of the shell, square connecting circles 2 are symmetrically arranged on the upper and lower parts of the shell, and a plurality of parallel heat exchange tubes 3 are arranged between the square connecting circles;
the heat exchange tube 3 comprises a pair of base tubes 31 and a corrugated tube 32, the base tubes are respectively connected on the square connecting circle, the corrugated tube is connected between the base tubes, an annular groove 33 is formed in one end, facing the corrugated tube, of the base tube, the corrugated tube is sleeved on the annular groove, a gap 34 is formed between the end face of the corrugated tube and the end face of the annular groove, and the wall thickness of the corrugated tube is smaller than that of the base tube (the wall thickness is convenient for heating cold smoke);
and the heat-shrinkable tube is also arranged on the base tube and the corrugated tube and is sleeved with the heat-shrinkable tube 35.
In the working process of the utility model, hot flue gas is discharged from the inlet and the outlet of the shell, and cold flue gas is discharged from the lower part and the upper part of the shell (namely, through a plurality of heat exchange tubes between a pair of butt circles); the heat exchange tube comprises a pair of base tubes and a corrugated tube, and the base tubes are connected on the square connecting circle in a welding mode, so that the connection is reliable; the corrugated pipe is sleeved in the annular grooves of the base pipes, a distance is arranged between the two annular grooves, the expansion amount of the corrugated pipe (namely the corrugated pipe expands when heated) is reserved, and the buffering and positioning are reliable. Meanwhile, the heat-shrinkable tube is arranged on the base tube and the corrugated tube, so that the base tube and the corrugated tube can be conveniently and reliably wrapped, and the shaking phenomenon is avoided.
The utility model discloses convenient processing, the operation is reliable.
The square connecting circle is provided with a through hole, and the base pipe is welded in the through hole.
Therefore, the two are reliably connected, and the stability is improved.
The height of the inlet is higher than the height of the outlet in the vertical direction.
The hot smoke is convenient to discharge, and the operation is convenient.
Still include backup pad 4, the backup pad is connected in the casing, be equipped with a plurality of locating holes in the backup pad, the heat exchange tube one-to-one is established in the locating hole.
The heat exchange pipe is convenient to position, and the working stability is improved.
Wherein, the two sides of the square connecting circle positioned at the lower part are respectively provided with a cleaning outlet 5.
The hot smoke in the shell is convenient to exhaust, and the device is convenient and reliable.
The disclosure of the present application also includes the following points:
(1) the drawings of the embodiments disclosed herein only relate to the structures related to the embodiments disclosed herein, and other structures can refer to general designs;
(2) in case of conflict, the embodiments and features of the embodiments disclosed in this application can be combined with each other to arrive at new embodiments;
the above embodiments are only embodiments disclosed in the present disclosure, but the scope of the disclosure is not limited thereto, and the scope of the disclosure should be determined by the scope of the claims.
Claims (5)
1. The flue gas heat exchanger comprises a shell, wherein an outlet and an inlet are respectively arranged in the front and back directions of the shell, square connecting circles are symmetrically arranged at the upper part and the lower part of the shell, and a plurality of parallel heat exchange tubes are arranged between the square connecting circles;
the heat exchange tube is characterized by comprising a pair of base tubes and a corrugated tube, wherein the base tubes are respectively connected to the square connecting circle, the corrugated tube is connected between the base tubes, an annular groove is formed in one end, facing the corrugated tube, of the base tube, the corrugated tube is sleeved on the annular groove, a gap is formed between the end face of the corrugated tube and the end face of the annular groove, and the wall thickness of the corrugated tube is smaller than that of the base tubes;
the heat-shrinkable tube is sleeved on the base tube and the corrugated tube.
2. The flue gas heat exchanger of claim 1, wherein the square joint circle is provided with a through hole, and the base pipe is welded in the through hole.
3. The flue gas heat exchanger according to claim 1, wherein the inlet is higher than the outlet in a vertical direction.
4. The flue gas heat exchanger according to claim 1, further comprising a support plate, wherein the support plate is connected in the housing, the support plate is provided with a plurality of positioning holes, and the heat exchange tubes are correspondingly arranged in the positioning holes.
5. The flue gas heat exchanger according to claim 1, wherein the two sides of the lower square circle are respectively provided with a drain outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920613360.7U CN209926936U (en) | 2019-04-29 | 2019-04-29 | Smoke heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920613360.7U CN209926936U (en) | 2019-04-29 | 2019-04-29 | Smoke heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209926936U true CN209926936U (en) | 2020-01-10 |
Family
ID=69089098
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920613360.7U Expired - Fee Related CN209926936U (en) | 2019-04-29 | 2019-04-29 | Smoke heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209926936U (en) |
-
2019
- 2019-04-29 CN CN201920613360.7U patent/CN209926936U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203068991U (en) | Combined waste heat utilization heat pipe waste heat boiler | |
| CN209926936U (en) | Smoke heat exchanger | |
| CN105157228A (en) | Water-tube type central-reverse-flame and condensation integrated boiler | |
| CN2481990Y (en) | High strength film type water-cooled wall for boiler | |
| CN100520268C (en) | Fume-fume hot pipe heater exchanger for fume desulphurization in heat-engine plant | |
| CN201028567Y (en) | Heat pipe type air preheater | |
| CN110657414A (en) | Direct-flow steam generator | |
| CN201047663Y (en) | Double barrel transverse type waterpipe coke boiler | |
| CN215411816U (en) | High-parameter small-capacity once-reheating pulverized coal combustion drum furnace | |
| CN201757419U (en) | Environment-friendly and energy-saving boiler | |
| CN207963144U (en) | The low nitrogen gas fired-boiler of built-in self-circulating pump | |
| CN102287909B (en) | Horizontal natural gas fired hot-water boiler | |
| CN104913498A (en) | High-efficiency energy-saving normal-pressure horizontal super-conducting gas boiler | |
| CN220892204U (en) | Three-return vertical steam boiler | |
| CN216977525U (en) | Square box heating furnace of U-shaped furnace tube based on three-side tube distribution of overhead burner | |
| CN216952995U (en) | Steam and hot air dual-purpose boiler | |
| CN217928712U (en) | Novel heat exchanger of integral type | |
| CN210107757U (en) | Gas positive displacement heat exchange water tank | |
| CN202109648U (en) | Horizontal natural gas water boiler | |
| CN107166372A (en) | A kind of coal-burning boiler assisted combustion device | |
| CN101761911A (en) | Heat tube steam generator | |
| CN211289999U (en) | Boiler with energy saver in front smoke box | |
| CN110118435B (en) | Wall-hanging stove heat exchanger | |
| CN218295681U (en) | Vertical waste heat boiler for MTO device | |
| CN212430812U (en) | High thermal efficiency circulation gas boiler |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200110 |