CN210264842U - Waste heat power generation system with flow stabilizing tank - Google Patents
Waste heat power generation system with flow stabilizing tank Download PDFInfo
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- CN210264842U CN210264842U CN201922262955.5U CN201922262955U CN210264842U CN 210264842 U CN210264842 U CN 210264842U CN 201922262955 U CN201922262955 U CN 201922262955U CN 210264842 U CN210264842 U CN 210264842U
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Abstract
The utility model discloses a waste heat power generation system with a steady flow tank, which comprises an evaporator, wherein the evaporator is connected with the steady flow tank and an expander of a generator, a pressure air bag is arranged on the steady flow tank, and a pressure detection device is arranged on the pressure air bag; the steady flow tank is connected with a hot fluid conveying pipeline, the expander is connected with the condenser, and the condenser is connected with the evaporator through the pump; and a first control valve is connected with the steady flow tank in parallel on the hot fluid conveying pipeline and is connected with the cooling tower. The pressure of the pressure air bag on the flow stabilizing tank is set to be upper and lower limits, the pressure of hot fluid in the flow stabilizing tank is maintained within a certain range, the flow entering the evaporator is further ensured to be maintained within a certain range, and the stable and efficient operation of the waste heat power generation system is ensured.
Description
Technical Field
The utility model relates to a waste heat power generation technical field, concretely relates to take waste heat power generation system of stationary flow jar.
Background
In the industrial production process, a large amount of hot fluid needs to be cooled to a target temperature, the hot fluid is cooled by an air cooling mode or a water cooling mode, but the air cooling mode consumes a large amount of electric energy, and the water cooling mode consumes a large amount of water resources besides electric energy. The organic Rankine cycle power generation system can recover and convert part of heat energy of hot fluid in the industrial production process into electric energy by utilizing a thermal power conversion principle, so that the system can obtain power generation benefits while realizing cooling of the hot fluid, and has good energy-saving and environment-friendly effects. However, in the industrial production process, parameters such as the temperature and the flow of the hot fluid may be in a severe fluctuation state, the fluctuation working condition of the hot fluid can influence the operation of the organic Rankine cycle power generation system, when the temperature and the flow of the hot fluid are too high, the air inlet parameter of the expansion machine is higher, the unit is in overload operation, when the temperature and the flow of the hot fluid are too low and the flow of the hot fluid is too small, the load of the unit is lower, the operation efficiency of the unit is not high, and even when the fluctuation of the hot fluid is severe, the shutdown protection of the organic Rankine cycle unit can be caused.
SUMMERY OF THE UTILITY MODEL
The above-mentioned not enough to prior art, the utility model provides a take waste heat power generation system of stationary flow jar suitable for the undulant operating mode of hot-fluid.
In order to achieve the above object, the utility model adopts the following technical scheme:
the waste heat power generation system with the flow stabilization tank comprises an evaporator, wherein the evaporator is connected with the flow stabilization tank and an expander of a generator, a pressure air bag is arranged on the flow stabilization tank, and a pressure detection device is arranged on the pressure air bag; the steady flow tank is connected with a hot fluid conveying pipeline, the expander is connected with the condenser, and the condenser is connected with the evaporator through the pump; and a first control valve is connected with the steady flow tank in parallel on the hot fluid conveying pipeline and is connected with the cooling tower.
Further, a second control valve and a heat storage tank which are connected in parallel are arranged between the evaporator and the flow stabilization tank, and a third control valve is arranged between the heat storage tank and the flow stabilization tank.
Further, the evaporator is connected with the cooling tower through a confluence valve.
The utility model has the advantages that: according to the scheme, the heat exchange is carried out between hot fluid discharged by industry and an organic working medium by using an evaporator, the organic working medium is changed into high-temperature high-pressure organic steam, the organic steam enters an expander to push the expander to do work outwards and change the work into low-temperature low-pressure organic exhaust steam, and meanwhile, the output work of the expander is converted into electric energy by a generator to realize power generation; and the low-temperature and low-pressure organic dead steam is condensed into organic condensate in the condenser, the organic condensate is conveyed to the evaporator by the pump, and a hot fluid heat source discharged by the industry is continuously absorbed, so that the circulation of the heat source is realized, and the cooling of the hot fluid is completed.
The pressure of the pressure air bag on the flow stabilizing tank is set to be upper and lower limits, the pressure of hot fluid in the flow stabilizing tank is maintained within a certain range, and then the flow entering the evaporator is maintained within a certain range. When the pressure in the pressure air bag is lower than the lower limit, the first control valve is closed, and the hot fluid pipe network continuously supplies hot fluid to the flow stabilizing tank; when the pressure of the pressure air bag is higher than the upper limit, the first control valve is opened, and part of the hot fluid bypasses through the first control valve and flows to the plant cooling tower to be cooled to the target temperature. The flow rate flowing into the evaporator is maintained within a certain range, and the stable and efficient operation of the waste heat power generation system is ensured.
The hot fluid cooled to the target temperature by the evaporator and the cooling tower is converged by the confluence valve and discharged for utilization; when the flow of the hot fluid flowing into the flow stabilizing tank is too low, the power generation effect of the expansion machine is not met, the second control valve is closed, the third control valve is opened, the heat of the hot fluid is stored in the heat storage tank, then released and discharged into the evaporator for power generation, and the stable and efficient operation of the waste heat power generation system is guaranteed.
Drawings
FIG. 1 is a schematic diagram of a cogeneration system with a flow stabilization tank.
Detailed Description
The following description of the embodiments of the present invention is provided to facilitate the understanding of the present invention by those skilled in the art, but it should be understood that the present invention is not limited to the scope of the embodiments, and various changes may be made apparent to those skilled in the art within the spirit and scope of the present invention as defined and defined by the appended claims.
As shown in fig. 1, the waste heat power generation system with the flow stabilization tank includes an evaporator, the evaporator is connected with the flow stabilization tank and an expander of the power generator, the flow stabilization tank is provided with a pressure airbag, and the pressure airbag is provided with a pressure detection device for detecting pressure; the steady flow tank is connected with a hot fluid conveying pipeline, the expander is connected with the condenser, and the condenser is connected with the evaporator through the pump; and a first control valve is connected with the steady flow tank in parallel on the hot fluid conveying pipeline and is connected with the cooling tower.
According to the scheme, the heat exchange is carried out between hot fluid discharged by industry and an organic working medium by using an evaporator, the organic working medium is changed into high-temperature high-pressure organic steam, the organic steam enters an expander to push the expander to do work outwards and change the work into low-temperature low-pressure organic exhaust steam, and meanwhile, the output work of the expander is converted into electric energy by a generator to realize power generation; and the low-temperature and low-pressure organic dead steam is condensed into organic condensate in the condenser, the organic condensate is conveyed to the evaporator by the pump, and a hot fluid heat source discharged by the industry is continuously absorbed, so that the circulation of the heat source is realized, and the cooling of the hot fluid is completed.
The pressure of the pressure air bag on the flow stabilizing tank is set to be upper and lower limits, the pressure of hot fluid in the flow stabilizing tank is maintained within a certain range, and then the flow entering the evaporator is maintained within a certain range. When the pressure in the pressure air bag is lower than the lower limit, the first control valve is closed, and the hot fluid pipe network continuously supplies hot fluid to the flow stabilizing tank; when the pressure of the pressure air bag is higher than the upper limit, the first control valve is opened, and part of the hot fluid bypasses through the first control valve and flows to the plant cooling tower to be cooled to the target temperature. The flow rate flowing into the evaporator is maintained within a certain range, and the stable and efficient operation of the waste heat power generation system is ensured.
A second control valve and a heat storage tank which are connected in parallel are arranged between the evaporator and the flow stabilizing tank, and a third control valve is arranged between the heat storage tank and the flow stabilizing tank. The evaporator is connected with the cooling tower through a confluence valve.
The hot fluid cooled to the target temperature by the evaporator and the cooling tower is converged by the confluence valve and discharged for utilization; when the flow of the hot fluid flowing into the flow stabilizing tank is too low, the power generation effect of the expansion machine is not met, the second control valve is closed, the third control valve is opened, the heat of the hot fluid is stored in the heat storage tank, then released and discharged into the evaporator for power generation, and the stable and efficient operation of the waste heat power generation system is guaranteed.
Claims (3)
1. The waste heat power generation system with the flow stabilization tank is characterized by comprising an evaporator, wherein the evaporator is connected with the flow stabilization tank and an expander of a generator, a pressure air bag is arranged on the flow stabilization tank, and a pressure detection device is arranged on the pressure air bag; the steady flow tank is connected with a hot fluid conveying pipeline, the expansion machine is connected with a condenser, and the condenser is connected with the evaporator through a pump; and a first control valve is connected with the steady flow tank in parallel on the hot fluid conveying pipeline, and the first control valve is connected with the cooling tower.
2. The waste heat power generation system with the flow stabilization tank as claimed in claim 1, wherein a second control valve and a heat storage tank are arranged between the evaporator and the flow stabilization tank in parallel, and a third control valve is arranged between the heat storage tank and the flow stabilization tank.
3. The waste heat power generation system with the flow stabilization tank as recited in claim 1, wherein the evaporator and the cooling tower are connected through a confluence valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922262955.5U CN210264842U (en) | 2019-12-16 | 2019-12-16 | Waste heat power generation system with flow stabilizing tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922262955.5U CN210264842U (en) | 2019-12-16 | 2019-12-16 | Waste heat power generation system with flow stabilizing tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210264842U true CN210264842U (en) | 2020-04-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922262955.5U Active CN210264842U (en) | 2019-12-16 | 2019-12-16 | Waste heat power generation system with flow stabilizing tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210264842U (en) |
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2019
- 2019-12-16 CN CN201922262955.5U patent/CN210264842U/en active Active
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