CN213021132U - Combined heat exchanger capable of accurately controlling temperature - Google Patents
Combined heat exchanger capable of accurately controlling temperature Download PDFInfo
- Publication number
- CN213021132U CN213021132U CN202021664815.7U CN202021664815U CN213021132U CN 213021132 U CN213021132 U CN 213021132U CN 202021664815 U CN202021664815 U CN 202021664815U CN 213021132 U CN213021132 U CN 213021132U
- Authority
- CN
- China
- Prior art keywords
- heat exchanger
- casing
- electric louver
- louver valve
- accurately controlling
- 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.)
- Active
Links
Images
Landscapes
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model discloses a but combination formula heat exchanger of accurate temperature control, which comprises a housin, the left and right sides of casing is equipped with casing gas inlet and casing exhanst gas outlet respectively, casing gas inlet communicates with each other with the plenum, the plenum communicates with each other with first heat transfer room and second heat transfer room respectively, install first plate heat exchanger and second plate heat exchanger in the first heat transfer room, through wind channel series connection between first plate heat exchanger and the second plate heat exchanger, install the heat conduction oil pipe that is the S-shaped setting in the second heat transfer room, the hot air exitus of second plate heat exchanger and the hot air exitus of second heat transfer room all communicate with each other with the casing gas outlet. The utility model discloses an aspect can be according to air heat transfer temperature demand and conduction oil heat demand to adjust, has improved the flexibility of quiet equipment greatly; on the other hand, the risk of equipment damage caused by fluctuation of the smoke temperature of the RTO or TO system can be reduced, the service life of the equipment is prolonged, and the safety of a production line is also improved.
Description
Technical Field
The utility model relates to a gaseous heat exchange technical field, concretely relates to but combination formula heat exchanger of accurate accuse temperature.
Background
At present, a large amount of waste gas is generated in domestic industrial production, particularly in production lines of chemical industry, steel petroleum industry, copper-clad plate industry and the like, the products are different, the working conditions are different, the generated waste gas is different, and the waste gas is purposefully used in thermal incineration systems such as RTO, TO and the like when the waste gas is required TO be treated.
In the treatment process of the RTO and TO systems, the flue gas temperature is high and redundant heat is generated, and in a production line, the redundant heat needs TO be recovered by heat conduction oil TO save energy and improve heat exchange efficiency; the temperature in the treatment process of the system is too high and exceeds the temperature-resistant temperature requirement of the plate heat exchanger; and as the requirement of the heat conduction oil on the temperature is high, most of the heat conduction oil can resist the temperature of not more than 300 ℃, in order to prevent the heat conduction oil from being over-heated and better recover the heat, a combined heat exchanger needs to be developed, reliable technical support is provided for industrial production, energy is saved, emission is reduced, and economic value is better created.
SUMMERY OF THE UTILITY MODEL
Utility model purpose: the utility model aims at providing a but combination formula heat exchanger of accurate temperature control has solved present heat exchanger temperature resistant temperature and has made the conduction oil overtemperature or heat easily inadequately when being damaged easily and the heat transfer, the thermal problem of recovery that can not be better.
The technical scheme is as follows: the utility model relates to a but combination formula heat exchanger of accurate temperature control, which comprises a housin, the left and right sides of casing is equipped with casing gas inlet and casing exhanst gas outlet respectively, casing gas inlet communicates with each other with the plenum, the plenum communicates with each other with first heat transfer room and second heat transfer room respectively, install first plate heat exchanger and second plate heat exchanger in the first heat transfer room, through wind channel series connection between first plate heat exchanger and the second plate heat exchanger, install the heat conduction oil pipe that is the S-shaped setting in the second heat transfer room, the hot air exitus of second plate heat exchanger and the hot air exitus of second heat transfer room all communicate with each other with the casing gas outlet.
Furthermore, the air mixing chamber is provided with an air inlet, and an electric valve is installed at the air inlet. The electric valve ensures that cold air can rapidly enter the air mixing chamber, and further rapid cooling can be achieved.
Furthermore, a first thermocouple is arranged in the air mixing chamber between the air inlet and the first heat exchange chamber. The first thermocouple can accurately measure the temperature.
Furthermore, two rows of light discharge pipes are fixedly arranged at the front end of a hot air inlet of the first plate heat exchanger. The light pipe is used to prevent direct impact of high temperature on the plate.
Furthermore, a first electric louver valve and a second electric louver valve are arranged in the shell smoke outlet, the position of the first electric louver valve corresponds to the position of a hot air outlet of the second plate heat exchanger, and the position of the second electric louver valve corresponds to the position of a hot air outlet of the second heat exchange chamber.
Furthermore, a second thermocouple is further arranged in the shell smoke outlet and is located at the rear end of the first electric louver valve.
Furthermore, the second thermocouple is electrically connected with a PLC controller, and the PLC controller is also electrically connected with the first electric louver valve, the second electric louver valve, the first thermocouple and the electric valve respectively.
Further, the opening and closing directions of the first electric louver valve and the second electric louver valve are opposite. When the second thermocouple detects the overtemperature, the opening degree of the first electric shutter valve is reduced and the opening degree of the second electric shutter valve is increased through the PLC until the temperature normally reaches balance, so that the aim of accurately controlling the temperature can be fulfilled.
Has the advantages that: the utility model discloses an aspect can be according to the air heat transfer temperature demand and the thermal demand of conduction oil to adjust, has improved the flexibility of quiet equipment greatly; on the other hand, the risk of equipment damage caused by high temperature after fluctuation of the smoke temperature of the RTO or TO system can be reduced, the service life of the equipment is prolonged, and the safety of a production line is also improved; and the utility model discloses structural strength is high, and the equipment is convenient, the clean maintenance of also being convenient for.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic view of the airflow direction of the present invention (a is the flow direction of flue gas, B is the flow direction of cold air in the heat exchanger, and C is the flow direction of heat transfer oil);
FIG. 3 is a top view of a heat transfer oil tube;
FIG. 4 is a schematic view of a light bank pipe structure;
fig. 5 is an electrical schematic diagram of the present invention.
Detailed Description
The invention will be further described with reference to the following figures and examples:
as shown in fig. 1 to 5, the utility model relates to a but combination formula heat exchanger of accurate temperature control, including casing 1, casing 1's the left and right sides is equipped with casing gas inlet 2 and casing gas outlet 3 respectively, and casing gas inlet 2 and casing gas outlet 3 are the symmetric distribution, and the high temperature flue gas 800 ℃ of casing gas inlet 2 of this embodiment, amount of wind 10000Nm3The high-temperature flue gas is treated by an RTO system and a TO system and has temperature fluctuation, a shell flue gas inlet 2 is communicated with a wind mixing chamber 4, the wind mixing chamber 4 adopts 1200 multiplied by 1000 multiplied by 1200mm, and the volume is about 3.5m3The thickness of the cotton hanging in the air mixing chamber 4 is 300mm, so that the purposes of heat storage and energy saving are achieved;
the air mixing chamber 4 is provided with an air inlet 41, an electric valve (not shown in the figure) is arranged at the air inlet 41, and DN300 is selected by the electric valve to ensure that cold air can quickly enter the air mixing chamber 4 and further can be quickly cooled; a first thermocouple 42 is arranged in the air mixing chamber 4 between the air inlet 41 and the first heat exchange chamber 5, the first thermocouple 42 and the electric valve are both electrically connected with a PLC (programmable logic controller) 7, the PLC 7 is a SIMENS programmable controller S7-200 series PLC, the first thermocouple 42 is arranged behind the air inlet 41, the measurement range of the first thermocouple 42 is 0-1200 ℃, and the temperature can be accurately measured; if the temperature of the high-temperature flue gas fluctuates and the first thermocouple 42 detects that the air mixing chamber 4 is over-heated, the PLC controller 7 controls the electric valve to open the air inlet 41 and introduce cold air for cooling; if the temperature is reduced to the required temperature, the electric valve is closed, so that the risk of equipment damage is greatly reduced;
the air mixing chamber 4 is respectively communicated with the first heat exchange chamber 5 and the second heat exchange chamber 6, the first heat exchange chamber 5 is positioned above the second heat exchange chamber 6, the first plate type heat exchanger 51 and the second plate type heat exchanger 52 are installed in the first heat exchange chamber 5, the first plate type heat exchanger 51 and the second plate type heat exchanger 52 are connected in series through an air duct 53, a cold air inlet and a cold air outlet of the heat exchangers are arranged at the top of the shell 1 and are of an upper inlet and outlet structure, and the cold air flow is 8000Nm3The temperature of a cold air inlet is 100 ℃, and the temperature of a cold air outlet is 240 ℃; two rows of light discharge pipes 54 are fixedly arranged at the front end of the hot air inlet of the first plate type heat exchanger 51; the light bank pipes 54 are used to prevent direct impact of high temperature on the plates;
a heat conduction oil pipe 61 arranged in an S shape is installed in the second heat exchange chamber 6, fins are arranged on the heat conduction oil pipe 61, an inlet and an outlet of the heat conduction oil pipe 61 are both arranged on the side surface of the shell 1 and are connected with a pipeline flange, and the heat requirement of the heat conduction oil of the embodiment is 100 ten thousand kilocalories; the heat of the high-temperature flue gas is recycled through the heat-conducting oil pipe 61 and the plate heat exchanger, so that the heat exchange efficiency is improved, and the heat is saved;
a hot air outlet of the second plate heat exchanger 52 and a hot air outlet of the second heat exchange chamber 6 are both communicated with the shell flue gas outlet 3, a first electric louver valve 31 and a second electric louver valve 32 are arranged in the shell flue gas outlet 3, the position of the first electric louver valve 31 corresponds to the position of the hot air outlet of the second plate heat exchanger 52, and the position of the second electric louver valve 32 corresponds to the position of the hot air outlet of the second heat exchange chamber 6; meanwhile, a second thermocouple 33 is further arranged in the shell flue gas outlet 3, the measurement range of the second thermocouple 33 is 0-1200 ℃, temperature can be measured accurately, the second thermocouple 33 is located at the rear end of the first electric louver valve 31, the second thermocouple 33 is electrically connected with the PLC controller 7, and the PLC controller 7 is further electrically connected with the first electric louver valve 31 and the second electric louver valve 32 respectively;
the opening and closing directions of the first electric louver valve 31 and the second electric louver valve 32 are opposite, the first electric louver valve 31 controls the hot air quantity of the heat exchanger, the second electric louver valve 32 controls the hot air quantity of the second heat exchange chamber 6, and the opening and closing directions of the first electric louver valve 31 and the second electric louver valve are opposite, so that when the first electric louver valve 31 is opened, the second electric louver valve 32 is closed, otherwise, when the first electric louver valve 31 is closed, the second electric louver valve 32 is opened; when the second thermocouple 33 detects the overtemperature, the opening degree of the first electric louver valve 31 is reduced and the opening degree of the second electric louver valve 32 is increased through the PLC 7 until the temperature is normally balanced, so that the aim of accurately controlling the temperature can be fulfilled.
The utility model discloses an aspect can be according to the air heat transfer temperature demand and the thermal demand of conduction oil to adjust, has greatly improved the flexibility of quiet equipment; on the other hand, the risk of equipment damage caused by high temperature after fluctuation of the smoke temperature of the RTO or TO system can be reduced, the service life of the equipment is prolonged, and the safety of a production line is also improved; and the utility model discloses structural strength is high, and the equipment is convenient, the clean maintenance of also being convenient for.
Claims (8)
1. The utility model provides a but combination formula heat exchanger of accurate temperature control, includes the casing, the left and right sides of casing is equipped with casing exhanst gas inlet and casing exhanst gas outlet respectively, its characterized in that: the shell smoke inlet is communicated with the air mixing chamber, the air mixing chamber is communicated with the first heat exchange chamber and the second heat exchange chamber respectively, a first plate heat exchanger and a second plate heat exchanger are installed in the first heat exchange chamber, the first plate heat exchanger and the second plate heat exchanger are connected in series through an air duct, a heat conduction oil pipe which is arranged in an S shape is installed in the second heat exchange chamber, and a hot air outlet of the second plate heat exchanger and a hot air outlet of the second heat exchange chamber are communicated with the shell smoke outlet.
2. The combined heat exchanger capable of accurately controlling the temperature according to claim 1, wherein: the air mixing chamber is provided with an air inlet, and an electric valve is installed at the air inlet.
3. The combined heat exchanger capable of accurately controlling the temperature according to claim 2, wherein: and a first thermocouple is arranged in the air mixing chamber between the air inlet and the first heat exchange chamber.
4. The combined heat exchanger capable of accurately controlling the temperature according to claim 1, wherein: and two rows of light discharge pipes are fixedly arranged at the front end of the hot air inlet of the first plate type heat exchanger.
5. The combined heat exchanger capable of accurately controlling the temperature according to claim 3, wherein: a first electric louver valve and a second electric louver valve are arranged in the shell smoke outlet, the position of the first electric louver valve corresponds to the position of a hot air outlet of the second plate heat exchanger, and the position of the second electric louver valve corresponds to the position of a hot air outlet of the second heat exchange chamber.
6. The combined heat exchanger capable of accurately controlling the temperature according to claim 5, wherein: and a second thermocouple is also arranged in the shell smoke outlet and is positioned at the rear end of the first electric louver valve.
7. The combined heat exchanger capable of accurately controlling the temperature according to claim 6, wherein: the second thermocouple is electrically connected with the PLC controller, and the PLC controller is also electrically connected with the first electric louver valve, the second electric louver valve, the first thermocouple and the electric valve respectively.
8. The combined heat exchanger capable of accurately controlling the temperature according to claim 5, wherein: the opening and closing directions of the first electric louver valve and the second electric louver valve are opposite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021664815.7U CN213021132U (en) | 2020-08-12 | 2020-08-12 | Combined heat exchanger capable of accurately controlling temperature |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021664815.7U CN213021132U (en) | 2020-08-12 | 2020-08-12 | Combined heat exchanger capable of accurately controlling temperature |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213021132U true CN213021132U (en) | 2021-04-20 |
Family
ID=75465997
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021664815.7U Active CN213021132U (en) | 2020-08-12 | 2020-08-12 | Combined heat exchanger capable of accurately controlling temperature |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213021132U (en) |
-
2020
- 2020-08-12 CN CN202021664815.7U patent/CN213021132U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202166034U (en) | Vapor generator for heat pipes | |
| CN213021132U (en) | Combined heat exchanger capable of accurately controlling temperature | |
| CN203880946U (en) | Novel water circulation structure of gas angular tube hot water boiler | |
| CN1800762A (en) | Hot-air furnace combined by combustion chamber and dustproof multi-stage heat exchanger with burning-resistant device | |
| CN210773495U (en) | Smoke discharging and heat exchanging system of trolley type annealing furnace | |
| CN101576332B (en) | Cold air and hot water integrated machine | |
| CN211178066U (en) | High-temperature sleeve combined plate heat exchanger capable of accurately controlling temperature | |
| CN206724659U (en) | A kind of device drying oven of double preheating type household electrical appliances two | |
| RU2688132C1 (en) | Boiler for heating | |
| CN206959673U (en) | Heat exchanger fin, heat exchanger and heating forced ventilation formula gas furnace | |
| CN206724636U (en) | A kind of device drying oven of compact household electrical appliances two | |
| CN206724665U (en) | A kind of device drying oven of energy-saving household electrical appliances two | |
| CN211060707U (en) | Double-preheating heat exchanger with end cooling function | |
| CN214406956U (en) | Environment-friendly energy-saving combustion furnace | |
| CN219829530U (en) | Cement kiln head boiler waste gas waste heat utilization and standby cooling system | |
| CN2203424Y (en) | Vertical air heating furnace by ribbed tube heat-exchange | |
| CN205208612U (en) | Hot tubular air heater | |
| CN212409076U (en) | Water heating module and water heating equipment with same | |
| CN217635583U (en) | System for realizing waste heat recovery by adopting combined air heater | |
| CN216337761U (en) | Hot-blast stove | |
| CN204648668U (en) | A kind of glazed tiles processing hot-blast stove | |
| CN214276142U (en) | Horizontal intelligent heating boiler | |
| CN215411956U (en) | Combustion-supporting air preheating device of biomass gasification furnace | |
| CN213021095U (en) | Flue gas condensation energy-saving device | |
| CN203642498U (en) | Highly efficient heat exchanger |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |