CN219492358U - Polyester steam turbine recycling device - Google Patents
Polyester steam turbine recycling device Download PDFInfo
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- CN219492358U CN219492358U CN202321019104.8U CN202321019104U CN219492358U CN 219492358 U CN219492358 U CN 219492358U CN 202321019104 U CN202321019104 U CN 202321019104U CN 219492358 U CN219492358 U CN 219492358U
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Abstract
The utility model provides a polyester steam turbine recycling device which comprises a turbo generator, a surface cooler, a condensate pump, an aftercooler, a water ring vacuum pump, a gas-liquid separation tank and a refrigeration plate type heat exchanger. The set of equipment can be widely used for low-grade heat sources with different parameters, is an environment-friendly technology for comprehensively utilizing waste heat with high utilization rate of the low-grade heat sources, and can meet basic requirements of factories or serve as auxiliary power output; the whole layout of the equipment is reasonable and compact, and the installation and the transportation are convenient; the heat source utilization rate is improved, the loss is reduced, the mechanical efficiency is improved, the whole structure is simple, and the installation, the maintenance and the adjustment are convenient.
Description
Technical Field
The utility model belongs to the technical field of waste heat power generation, and particularly relates to a polyester steam turbine recycling device.
Background
In industrial enterprises, polyester vapors are widely available from two general sources: the first is the output of the high parameter steam for the process generated by the thermal power station of the industrial enterprise after cascade utilization, such as the steam extraction of the turbo generator set of the thermal power station, the temperature and pressure reduction station, etc. And secondly, the waste heat boiler and the steam generator are arranged for utilizing the waste heat of the process medium for the purpose of energy saving and consumption reduction, such as a steel mill high-temperature smelting furnace waste heat flue or the steam generator of other cooling parts, a chemical plant nitric acid three-in-one device waste heat boiler, a methanol synthesis device waste heat boiler and process steam generated in the esterification process.
The low-pressure saturated steam has low pressure and temperature, high humidity and large long-distance conveying flow resistance loss, and the pipeline and equipment are seriously eroded due to the high humidity, so that the effective utilization difficulty of energy is high, and the waste heat of the polyester steam cannot be effectively utilized.
Disclosure of Invention
Aiming at the defects existing in the prior art, the utility model provides a polyester steam turbine recycling device which can effectively solve the problems.
The technical scheme adopted by the utility model is as follows:
the utility model provides a polyester steam turbine recycling device which comprises a turbine generator (6), a surface cooler (7), a condensate pump, an aftercooler (10), a water ring vacuum pump (11), a gas-liquid separation tank (12) and a refrigeration plate type heat exchanger;
the output end of the esterification steam main pipe is connected to the air inlet end of the steam turbine generator (6); the exhaust end of the steam turbine generator (6) is connected to the air inlet end of the surface cooler (7); the surface cooler (7) is provided with a condensed water liquid discharge end and a non-condensable gas exhaust end; the condensed water draining end of the surface cooler (7) is connected with the liquid inlet end of the condensed water pump; the liquid discharge end of the condensate pump is connected with the esterification condensate recovery tank; the non-condensable gas exhaust end of the surface cooler (7) is connected with the air inlet end of the aftercooler (10); the exhaust end of the aftercooler (10) is connected with the air inlet end of the water ring vacuum pump (11); the exhaust end of the water ring vacuum pump (11) is connected with the air inlet end of the gas-liquid separation tank (12); the liquid discharge end of the gas-liquid separation tank (12) is connected with the liquid inlet end of the refrigeration plate type heat exchanger; the liquid discharge end of the refrigeration plate type heat exchanger is connected to a cooling water inlet of the water ring vacuum pump (11).
Preferably, a system total hand valve (1) is arranged between the output end of the esterification steam main pipe and the steam turbine generator (6).
Preferably, the air inlet end of the steam turbine generator (6) is provided with a first steam inlet switch valve (4) and a second steam inlet switch valve (5) in parallel.
Preferably, the valve further comprises a first speed-regulating valve (2) and a second speed-regulating valve (3); the first speed-closing valve (2) and the second speed-closing valve (3) are both arranged in parallel with the steam turbine generator (6).
Preferably, the condensate pump comprises a first condensate pump (8) and a second condensate pump (9) which are arranged in parallel.
Preferably, the refrigeration plate heat exchanger comprises a first refrigeration plate heat exchanger (13) and a second refrigeration plate heat exchanger (14) arranged in series.
The polyester steam turbine recycling device provided by the utility model has the following advantages:
the set of equipment can be widely used for low-grade heat sources with different parameters, is an environment-friendly technology for comprehensively utilizing waste heat with high utilization rate of the low-grade heat sources, and can meet basic requirements of factories or serve as auxiliary power output; the whole layout of the equipment is reasonable and compact, and the installation and the transportation are convenient; the heat source utilization rate is improved, the loss is reduced, the mechanical efficiency is improved, the whole structure is simple, and the installation, the maintenance and the adjustment are convenient.
Drawings
FIG. 1 is a schematic diagram of a polyester steam turbine recycling device.
Wherein: the system is characterized by comprising a system main hand valve 1, a first speed closing and regulating valve 2, a second speed closing and regulating valve 3, a first steam inlet switch valve 4, a second steam inlet switch valve 5, a turbine generator 6, a surface cooler 7, a first condensate pump 8, a second condensate pump 9, an aftercooler 10, a water ring vacuum pump 11, a gas-liquid separation tank 12, a first refrigeration plate heat exchanger 13 and a second refrigeration plate heat exchanger 14.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects solved by the utility model more clear, the utility model is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
The utility model provides a polyester steam turbine recycling device, the whole waste heat recycling device only adopts one surface cooler, a heat source directly enters a turbine generator to do work for power generation, the system arrangement is simple and effective, and the heat source utilization rate can be improved to the greatest extent, so that the problems encountered by the traditional low-temperature waste heat power generation system are effectively solved.
Referring to fig. 1, the utility model provides a polyester steam turbine recycling device, which comprises a turbine generator 6, a surface cooler 7, a condensate pump, an aftercooler 10, a water ring vacuum pump 11, a gas-liquid separation tank 12 and a refrigeration plate type heat exchanger;
the output end of the esterification steam main pipe is connected to the air inlet end of the steam turbine generator 6; specifically, in order to control the system conveniently, a system master valve 1 is arranged between the output end of the esterification steam main pipe and the steam turbine generator 6. The air inlet end of the steam turbine generator 6 is provided with a first steam inlet switch valve 4 and a second steam inlet switch valve 5 in parallel. The device also comprises a first speed-regulating valve 2 and a second speed-regulating valve 3; the first speed-closing valve 2 and the second speed-closing valve 3 are both arranged in parallel with the turbo generator 6.
The exhaust end of the turbo generator 6 is connected to the air inlet end of the surface cooler 7; the surface cooler 7 is provided with a condensed water liquid discharge end and a non-condensable gas exhaust end; the liquid discharge end of the condensed water of the surface cooler 7 is connected with the liquid inlet end of the condensed water pump; the liquid discharge end of the condensate pump is connected with the esterification condensate recovery tank; in practical application, the condensate pump comprises a first condensate pump 8 and a second condensate pump 9 which are arranged in parallel.
The non-condensable gas exhaust end of the surface cooler 7 is connected with the air inlet end of the aftercooler 10; the exhaust end of the aftercooler 10 is connected with the air inlet end of the water ring vacuum pump 11; the exhaust end of the water ring vacuum pump 11 is connected with the air inlet end of the gas-liquid separation tank 12; the liquid discharge end of the gas-liquid separation tank 12 is connected with the liquid inlet end of the refrigeration plate type heat exchanger; the drain end of the freeze plate heat exchanger is connected to the cooling water inlet of the water ring vacuum pump 11. In practice, the freeze plate heat exchanger comprises a first freeze plate heat exchanger 13 and a second freeze plate heat exchanger 14 arranged in series.
The system process flow comprises the following steps:
the esterification steam from the esterification process tower passes through a first steam inlet switch valve 4 and a second steam inlet switch valve 5 which are connected in parallel, and enters a steam turbine generator 6 to do work through a nozzle to drive the steam turbine generator 6 to generate power; the utility model designs a first condensate pump 8 and a second condensate pump 9, which are used for one-to-one, by the utility model. The outlet of the condensate pump is connected with the esterification condensate recovery tank, and the motor of the condensate pump adopts a variable frequency motor to ensure that the water level of the hot well of the surface cooler 7 is controlled in a normal range. The noncondensable gas separated by the surface cooler 7 is further cooled by the aftercooler 10, the cooled gas is pumped out by the water ring vacuum pump 11 and then enters the gas-liquid separation tank 12, and the noncondensable gas is discharged by the gas-liquid separation tank 12 so as to improve the vacuum degree of the system. Wherein the vacuum pumping system is a closed refrigeration cycle, and comprises a first refrigeration plate heat exchanger 13 and a second refrigeration plate heat exchanger 14, namely: the liquid discharged from the gas-liquid separation tank 12 is cooled by the first refrigeration plate heat exchanger 13 and the second refrigeration plate heat exchanger 14, and then flows back to the cooling water inlet of the water-ring vacuum pump 11.
The set of equipment can be widely used for low-grade heat sources with different parameters, is an environment-friendly technology for comprehensively utilizing waste heat with high utilization rate of the low-grade heat sources, and can meet basic requirements of factories or serve as auxiliary power output; the whole layout of the equipment is reasonable and compact, and the installation and the transportation are convenient; the heat source utilization rate is improved, the loss is reduced, the mechanical efficiency is improved, the whole structure is simple, and the installation, the maintenance and the adjustment are convenient.
The foregoing is merely a preferred embodiment of the present utility model and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present utility model, which is also intended to be covered by the present utility model.
Claims (6)
1. The polyester steam turbine recycling device is characterized by comprising a turbine generator (6), a surface cooler (7), a condensate pump, an aftercooler (10), a water ring vacuum pump (11), a gas-liquid separation tank (12) and a refrigeration plate type heat exchanger;
the output end of the esterification steam main pipe is connected to the air inlet end of the steam turbine generator (6); the exhaust end of the steam turbine generator (6) is connected to the air inlet end of the surface cooler (7); the surface cooler (7) is provided with a condensed water liquid discharge end and a non-condensable gas exhaust end; the condensed water draining end of the surface cooler (7) is connected with the liquid inlet end of the condensed water pump; the liquid discharge end of the condensate pump is connected with the esterification condensate recovery tank; the non-condensable gas exhaust end of the surface cooler (7) is connected with the air inlet end of the aftercooler (10); the exhaust end of the aftercooler (10) is connected with the air inlet end of the water ring vacuum pump (11); the exhaust end of the water ring vacuum pump (11) is connected with the air inlet end of the gas-liquid separation tank (12); the liquid discharge end of the gas-liquid separation tank (12) is connected with the liquid inlet end of the refrigeration plate type heat exchanger; the liquid discharge end of the refrigeration plate type heat exchanger is connected to a cooling water inlet of the water ring vacuum pump (11).
2. The polyester steam turbine recycling device according to claim 1, wherein a system total hand valve (1) is arranged between the output end of the esterification steam main pipe and the steam turbine generator (6).
3. The polyester steam turbine recycling device according to claim 1, wherein the air inlet end of the turbo generator (6) is provided with a first steam inlet switch valve (4) and a second steam inlet switch valve (5) in parallel.
4. The polyester steam turbine recycling apparatus according to claim 1, further comprising a first speed-regulating valve (2) and a second speed-regulating valve (3); the first speed-closing valve (2) and the second speed-closing valve (3) are both arranged in parallel with the steam turbine generator (6).
5. The polyester steam turbine recycling apparatus according to claim 1, wherein the condensate pump comprises a first condensate pump (8) and a second condensate pump (9) arranged in parallel.
6. The polyester steam turbine recycling apparatus according to claim 1, wherein the refrigeration plate heat exchanger comprises a first refrigeration plate heat exchanger (13) and a second refrigeration plate heat exchanger (14) arranged in series.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321019104.8U CN219492358U (en) | 2023-04-26 | 2023-04-26 | Polyester steam turbine recycling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321019104.8U CN219492358U (en) | 2023-04-26 | 2023-04-26 | Polyester steam turbine recycling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219492358U true CN219492358U (en) | 2023-08-08 |
Family
ID=87504211
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321019104.8U Active CN219492358U (en) | 2023-04-26 | 2023-04-26 | Polyester steam turbine recycling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219492358U (en) |
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2023
- 2023-04-26 CN CN202321019104.8U patent/CN219492358U/en active Active
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