CN209800028U - Pneumatic valve air source pipeline system of steam type ORC screw expansion generator set - Google Patents
Pneumatic valve air source pipeline system of steam type ORC screw expansion generator set Download PDFInfo
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- CN209800028U CN209800028U CN201920519323.XU CN201920519323U CN209800028U CN 209800028 U CN209800028 U CN 209800028U CN 201920519323 U CN201920519323 U CN 201920519323U CN 209800028 U CN209800028 U CN 209800028U
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Abstract
The utility model discloses a steam type ORC screw expansion generating set pneumatic valve air supply pipe-line system, this system still includes the gas holder including the expander that connects gradually, oil separator, condenser, working medium pump, regenerator and evaporimeter, be provided with the intake pipe with upper reaches pipe connection on the gas holder, still be provided with first exhaust stop valve on the gas holder, be provided with pneumatic fast valve of closing on the pipeline between evaporimeter and the expander, first exhaust stop valve passes through first exhaust pipe with pneumatic fast valve of closing and is connected. The system design of the utility model has the air storage tank to supply air to play a buffering role, reduces the fluctuation of air flow of the air inlet pipeline, provides a stable air source for the pneumatic valve and ensures that the valve is in a stable state.
Description
Technical Field
The utility model relates to a pneumatic valve air supply pipe-line system's technical field, concretely relates to steam type ORC screw expansion generating set pneumatic valve air supply pipe-line system.
Background
A large amount of low-grade waste heat resources exist in China, the steam type ORC screw expansion generator set adopts organic working medium Rankine cycle, the organic working medium is used for absorbing the steam waste heat generated in industrial production to generate high-pressure steam, the screw expander is pushed to drive the generator to generate electricity, the heat energy is converted into electric energy, and the purposes of energy conservation and emission reduction are achieved.
The steam type ORC screw expansion generator set mainly comprises an expansion machine, a generator, an oil separator, a condenser, an evaporator, a valve, a pipeline system and the like. The unit is controlled by a PLC (programmable logic controller), and a plurality of pneumatic valves are arranged in the system for realizing automatic startup and ensuring normal operation of the unit. Once the air is cut off, the failure of the valve when the unit is in failure and is in emergency stop may cause the problems of overheating and inversion of the expansion machine, and irreversible loss is caused to the system.
Disclosure of Invention
an object of the utility model is to overcome above-mentioned background art not enough, provide a steam type ORC screw expansion generating set pneumatic valve air supply pipe-line system, this system design has the gas holder air feed to play the cushioning effect, and it is undulant to reduce the air inlet pipeline air current, provides stable air supply for pneumatic valve, makes the valve be in stable state.
In order to realize the above-mentioned purpose, the utility model discloses a steam type ORC screw expansion generating set pneumatic valve air supply pipe-line system, including expander, oil separator, condenser, working medium pump, regenerator and the evaporimeter that connects gradually, the export of expander and the access connection of oil separator, the export of oil separator and the access connection of condenser, the export of condenser and the access connection of working medium pump, the export of working medium pump and the access connection of regenerator, the export of regenerator and the access connection of evaporimeter, the export of evaporimeter and the access connection of expander, its special character lies in: still include the air tank, be provided with the intake pipe of being connected with the upper reaches pipeline on the air tank, still be provided with first exhaust stop valve on the air tank, be provided with pneumatic fast valve of closing on the pipeline between evaporimeter and the expander, first exhaust stop valve passes through first exhaust pipe with pneumatic fast valve of closing and is connected.
Furthermore, the system also comprises a bypass pipeline, wherein an inlet of the bypass pipeline is connected with a pipeline between the evaporator and the expander, and an outlet of the bypass pipeline is connected with a pipeline between the oil separator and the condenser;
the bypass pipeline is provided with a pneumatic quick-opening valve, the gas storage tank is further provided with a second exhaust stop valve, and the second exhaust stop valve is connected with the pneumatic quick-opening valve through a second exhaust pipe.
Furthermore, a third exhaust stop valve is further arranged on the gas storage tank, a pneumatic ball valve is arranged on a pipeline between the working medium pump and the heat regenerator, and the third exhaust stop valve is connected with the pneumatic ball valve through a third exhaust pipe.
Further, an emptying valve is further arranged on the air storage tank.
Further, a safety valve is arranged on the gas storage tank.
Still further, a pressure gauge is arranged on the gas storage tank.
Furthermore, an intake air stop check valve is arranged on the intake pipe.
Compared with the prior art, the utility model has the advantages of as follows:
One of which, the utility model discloses a steam type ORC screw expansion generating set pneumatic valve air supply pipe-line system design has the gas holder air feed to play the cushioning effect, and it is undulant to reduce the air inlet pipeline air current, for the pneumatic valve provides stable air supply, makes the valve be in stable state, when the unit normally opens, and gas holder air inlet stop check valve and gas vent stop valve are opened, guarantee that pneumatic valve air supply pipeline is unblocked.
Two, the utility model discloses a steam type ORC screw expansion generating set pneumatic valve air supply pipe-line system is as reserve air supply when unit outage, outage are shut down suddenly, for the pneumatic valve provides the compressed air supply, guarantees that the pneumatic fast valve of expander inlet line closes, and the pneumatic fast valve that opens of bypass pipeline is opened and is opened, realizes that the expander admits air promptly to cut off, and quick balanced expander is imported and exported pressure differential, prevents that the expander from reversing, guarantees that the unit realizes safe and steady shut down.
Drawings
FIG. 1 is a schematic diagram of a pneumatic valve air supply piping system of a steam type ORC screw expansion generator set;
In the figure: the system comprises an expander 1, an oil separator 2, a condenser 3, a working medium pump 4, a heat regenerator 5, an evaporator 6, an air storage tank 7, an air inlet pipe 8, a first exhaust stop valve 9, a pneumatic quick-closing valve 10, a first exhaust pipe 11, a bypass pipeline 12, a pneumatic quick-opening valve 13, a second exhaust stop valve 14, a second exhaust pipe 15, a third exhaust stop valve 16, a pneumatic ball valve 17, a third exhaust pipe 18, an emptying valve 19, a safety valve 20, a pressure gauge 21, an air inlet stop check valve 22 and an upstream pipeline 23.
Detailed Description
The following detailed description will be given with reference to the embodiments, but they are not intended to limit the present invention, and are given by way of example only. While the advantages of the invention will be apparent and readily appreciated by the description.
The air source pipeline system of the pneumatic valve of the steam type ORC screw expansion generator set comprises an expansion machine 1, an oil separator 2, a condenser 3, a working medium pump 4, a heat regenerator 5, an evaporator 6 and an air storage tank 7 which are sequentially connected, wherein an outlet of the expansion machine 1 is connected with an inlet of the oil separator 2, an outlet of the oil separator 2 is connected with an inlet of the condenser 3, an outlet of the condenser 3 is connected with an inlet of the working medium pump 4, an outlet of the working medium pump 4 is connected with an inlet of the heat regenerator 5, an outlet of the evaporator 5 is connected with an inlet of the evaporator 6, and an outlet of the evaporator 6 is connected with an inlet of the expansion machine 1. An air inlet pipe 8 connected with an upstream pipeline 23 (an air compressor or a user compressed air pipeline) is arranged on the air storage tank 7, a first exhaust stop valve 9 is further arranged on the air storage tank 7, a pneumatic quick-closing valve 10 is arranged on a pipeline between the evaporator 6 and the expansion machine 1, and the first exhaust stop valve 9 is connected with the pneumatic quick-closing valve 10 through a first exhaust pipe 11. The air storage tank 7 is also provided with an emptying valve 19, a safety valve 20 and a pressure gauge 21, and the air inlet pipe 8 is provided with an air inlet stop check valve 22.
In the technical scheme, the oil separator further comprises a bypass pipeline 12, wherein an inlet of the bypass pipeline 12 is connected with a pipeline between the evaporator 6 and the expander 1, and an outlet of the bypass pipeline 12 is connected with a pipeline between the oil separator 2 and the condenser 3; the bypass line 12 is provided with a pneumatic quick-opening valve 13, the gas holder 7 is further provided with a second exhaust cut-off valve 14, and the second exhaust cut-off valve 14 is connected to the pneumatic quick-opening valve 13 through a second exhaust pipe 15.
In the above technical scheme, the air storage tank 7 is further provided with a third exhaust stop valve 16, a pneumatic ball valve 17 is arranged on a pipeline between the working medium pump 4 and the heat regenerator 5, and the third exhaust stop valve 16 is connected with the pneumatic ball valve 17 through a third exhaust pipe 18.
The utility model discloses a theory of operation: an air storage tank 7 is arranged on an air supply pipeline from an air compressor or a user compressed air pipeline to pneumatic valves (a pneumatic quick-closing valve 10, a pneumatic quick-opening valve 13 and a pneumatic ball valve 17), when the unit is started, an air inlet stop check valve 22, a first exhaust stop valve 9, a second exhaust stop valve 14 and a third exhaust stop valve 16 are opened, compressed air is buffered by the air storage tank 7 and then supplies air to the pneumatic valves, the pneumatic quick-closing valve 10 is controlled to be opened, the pneumatic quick-opening valve 13 is controlled to be closed, the pneumatic ball valve 17 is controlled to be opened, organic working medium steam of the evaporator 6 enters the expander 1 through the pneumatic quick-closing valve 10, the exhaust of the expander 1 enters the oil separator 2 to be separated and then enters the condenser 3 to be cooled into liquid working medium, the liquid working medium enters the heat regenerator 5 and the evaporator 6 through the pneumatic ball valve 17 through the working medium pump 4 to absorb; when the unit is in emergency power-off and gas-off, the pneumatic quick-closing valve 10 is closed, the pneumatic quick-opening valve 13 is opened, the entry of organic working medium steam in the expansion machine is cut off, the organic working medium steam enters the condenser 3 through the pneumatic quick-opening valve 13, the pressure difference between the air inlet side and the air outlet side of the expansion machine is rapidly balanced, and the safe shutdown of the unit is realized.
While the present invention has been described with reference to the preferred embodiments, it should be understood that various changes and modifications can be made by one skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (7)
1. The utility model provides a steam type ORC screw expansion generating set pneumatic valve air supply pipe-line system, is including expander (1), oil separator (2), condenser (3), working medium pump (4), regenerator (5) and evaporimeter (6) that connect gradually, the export of expander (1) and the access connection of oil separator (2), the export of oil separator (2) and the access connection of condenser (3), the export of condenser (3) and the access connection of working medium pump (4), the export of working medium pump (4) and the access connection of regenerator (5), the export of regenerator (5) and the access connection of evaporimeter (6), the export of evaporimeter (6) and the access connection of expander (1), its characterized in that:
still include gas holder (7), be provided with intake pipe (8) of being connected with upper reaches pipeline (23) on gas holder (7), still be provided with first exhaust stop valve (9) on gas holder (7), be provided with pneumatic fast valve (10) on the pipeline between evaporimeter (6) and expander (1), first exhaust stop valve (9) are connected through first blast pipe (11) with pneumatic fast valve (10).
2. The steam type ORC screw expansion generator set pneumatic valve air supply piping system of claim 1, wherein: the oil separator further comprises a bypass pipeline (12), wherein an inlet of the bypass pipeline (12) is connected with a pipeline between the evaporator (6) and the expander (1), and an outlet of the bypass pipeline (12) is connected with a pipeline between the oil separator (2) and the condenser (3);
The bypass pipeline (12) is provided with a pneumatic quick-opening valve (13), the gas storage tank (7) is further provided with a second exhaust stop valve (14), and the second exhaust stop valve (14) is connected with the pneumatic quick-opening valve (13) through a second exhaust pipe (15).
3. The vapor type ORC screw expansion generator set pneumatic valve air supply piping system of claim 2, wherein: the gas storage tank (7) is further provided with a third exhaust stop valve (16), a pneumatic ball valve (17) is arranged on a pipeline between the working medium pump (4) and the heat regenerator (5), and the third exhaust stop valve (16) is connected with the pneumatic ball valve (17) through a third exhaust pipe (18).
4. The steam type ORC screw expansion generator set pneumatic valve air supply piping system of claim 1, 2 or 3, wherein: the air storage tank (7) is also provided with an air release valve (19).
5. The steam type ORC screw expansion generator set pneumatic valve air supply piping system of claim 1, 2 or 3, wherein: the gas storage tank (7) is also provided with a safety valve (20).
6. The steam type ORC screw expansion generator set pneumatic valve air supply piping system of claim 1, 2 or 3, wherein: and a pressure gauge (21) is also arranged on the air storage tank (7).
7. The steam type ORC screw expansion generator set pneumatic valve air supply piping system of claim 1, 2 or 3, wherein: and an air inlet stop check valve (22) is arranged on the air inlet pipe (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920519323.XU CN209800028U (en) | 2019-04-16 | 2019-04-16 | Pneumatic valve air source pipeline system of steam type ORC screw expansion generator set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920519323.XU CN209800028U (en) | 2019-04-16 | 2019-04-16 | Pneumatic valve air source pipeline system of steam type ORC screw expansion generator set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209800028U true CN209800028U (en) | 2019-12-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920519323.XU Active CN209800028U (en) | 2019-04-16 | 2019-04-16 | Pneumatic valve air source pipeline system of steam type ORC screw expansion generator set |
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| Country | Link |
|---|---|
| CN (1) | CN209800028U (en) |
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2019
- 2019-04-16 CN CN201920519323.XU patent/CN209800028U/en active Active
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