CN219733479U - Steam pipeline system and steam turbine power generation system - Google Patents
Steam pipeline system and steam turbine power generation system Download PDFInfo
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- CN219733479U CN219733479U CN202321352024.4U CN202321352024U CN219733479U CN 219733479 U CN219733479 U CN 219733479U CN 202321352024 U CN202321352024 U CN 202321352024U CN 219733479 U CN219733479 U CN 219733479U
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- 238000010248 power generation Methods 0.000 title claims abstract description 14
- 230000001105 regulatory effect Effects 0.000 claims abstract description 44
- 238000000605 extraction Methods 0.000 claims description 36
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- 238000001514 detection method Methods 0.000 claims description 11
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- 238000006243 chemical reaction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
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Abstract
The utility model discloses a steam pipeline system and a steam turbine power generation system. The steam pipeline system comprises at least two steam branch pipelines, at least two pressure regulating valves, a main steam pipeline and a pressure regulating unit. The steam shunt pipeline is connected with a corresponding steam source. Each steam shunt pipe is provided with a pressure regulating valve. At least two steam shunt pipelines are communicated with the main steam pipeline. The pressure regulating unit controls the opening degree of at least two pressure regulating valves. Above-mentioned steam piping system carries out pressure adjustment through pressure adjustment unit to steam for the steam that inputs to main steam pipeline in each steam branching pipeline can be balanced each other, is favorable to preventing to take place backward flow between the steam source of difference.
Description
Technical Field
The utility model relates to the technical field of power generation, in particular to a steam pipeline system and a steam turbine power generation system.
Background
In the related art, a steam turbine may obtain steam through steam pipes of a plurality of different steam sources. However, the steam flow of different steam sources is different, the pressure grade is not necessarily the same, and when the steam pipelines of different steam sources are used for collecting steam, the pressure is unbalanced due to different steam pressures of the pipelines, so that backflow is easy to occur.
Disclosure of Invention
The utility model provides a steam pipeline system and a steam turbine power generation system.
A steam piping system of an embodiment of the present utility model includes:
at least two steam shunt pipelines, each steam shunt pipeline is connected with a corresponding steam source;
at least two pressure regulating valves, one for each of said vapor shunt tubes;
a main steam pipe, the at least two steam shunt pipes communicating with the main steam pipe; and
and the pressure regulating unit is used for controlling the opening degree of the at least two pressure regulating valves.
Above-mentioned steam piping system carries out pressure adjustment through pressure adjustment unit to steam for the steam that inputs to main steam pipeline in each steam branching pipeline can be balanced each other, is favorable to preventing to take place backward flow between the steam source of difference.
In certain embodiments, the steam piping system comprises:
the pressure detection piece is arranged in the steam shunt pipeline and is in communication connection with the pressure adjusting unit, and the pressure detection piece is used for detecting the steam pressure in the steam shunt pipeline and generating a pressure signal to send to the pressure adjusting unit, so that the pressure adjusting unit controls the opening degree of the pressure adjusting valve according to the pressure signal. Therefore, the scheme of adjusting the opening degree according to the steam pressure can be conveniently realized.
In certain embodiments, the steam piping system comprises:
the early warning unit is in communication connection with the pressure detection part and is used for sending an early warning signal under the condition that the corresponding steam pressure of the steam shunt pipeline is determined to exceed the pressure regulating range of the pressure regulating valve according to the pressure signal,
the pressure regulating unit can control the corresponding pressure regulating valve on the steam shunt pipeline to be closed according to the early warning signal. Therefore, the safety detection device can prompt workers to carry out safety detection in time, and safety accidents are avoided.
In certain embodiments, the steam piping system comprises:
the cylinder comprises a main steam port and at least two steam dividing ports, the main steam port is communicated with the main steam pipeline, the at least two steam dividing ports are communicated with the main steam port, each steam dividing port is communicated with one steam dividing pipeline, and the at least two steam dividing ports are mutually isolated. Thus, backflow is prevented from occurring between different steam shunt pipelines.
In certain embodiments, the steam piping system comprises:
the gating steam pipeline is communicated with the steam extraction pipeline and the main steam pipeline, and is provided with a pressure reducing device which is used for converting high-pressure steam into low-pressure steam;
the steam extraction pipeline is communicated with the main steam pipeline, and the steam turbine obtains high-pressure steam through the main steam pipeline and discharges low-pressure steam through the steam extraction pipeline. In this way, the low pressure steam requirements under different conditions can be met.
In certain embodiments, the steam piping system comprises:
a first gating valve disposed in one of the main steam pipe and the steam extraction pipe and located between the gating steam pipe and the steam turbine;
a second gating valve disposed in the gating steam line; and
and a gate regulating unit for interlockingly controlling the first gate valve and the second gate valve such that one of the first gate valve and the second gate valve is opened and the other is closed. In this way, a specific solution for generating low-pressure steam in different situations can be achieved.
In certain embodiments, the steam piping system comprises:
at least two first gating valves, one of which is arranged on the main steam pipeline, the other one of which is arranged on the steam extraction pipeline,
the gating regulation unit is also used for controlling at least two first gating valves in a linkage mode so that the at least two first gating valves are opened or closed. Thus, the on-off control effect on the steam pipeline is improved.
In certain embodiments, the steam piping system comprises:
at least two second gate valves, one of which is disposed at one side of the pressure reducing device, the other of which is disposed at the other side of the pressure reducing device,
the gating regulation unit is also used for controlling at least two second gating valves in a linkage mode so that the at least two second gating valves are opened or closed. Thus, the on-off control effect on the steam pipeline is improved.
In certain embodiments, the steam piping system comprises:
at least two said gating steam lines, each said gating steam line being provided with said second gating valve,
the gating regulation unit is further used for controlling the second gating valves on at least one gating steam pipeline to be opened when the first gating valves are closed, and controlling all the second gating valves to be closed when the first gating valves are opened. In this way, it is advantageous to increase the amount of steam to output low pressure steam through the gating steam pipe.
A turbine power generation system according to an embodiment of the present utility model includes:
the steam piping system according to any one of the above embodiments; and
and the steam turbine pipeline is connected with the main steam pipeline.
According to the steam turbine power generation system, the pressure of steam is regulated through the pressure regulating unit, so that the steam input to the main steam pipeline in each steam shunt pipeline can be balanced with each other, and backflow among different steam sources can be prevented.
Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.
Drawings
The foregoing and/or additional aspects and advantages of the present utility model will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:
fig. 1 is a schematic view of a steam turbine power generation system according to an embodiment of the present utility model.
Description of main reference numerals:
a steam piping system 100, a steam turbine power generation system 200;
a steam shunt pipe 111, a pressure regulating valve 112, a main steam pipe 113, a pressure regulating unit 114, a pressure detecting member 115, and an early warning unit 117;
the cylinder 120, the main steam port 121, the steam dividing port 122, the gating steam pipeline 123, the steam extraction pipeline 124, the pressure reducing device 125, the first gating valve 126, the second gating valve 127 and the gating regulation unit 128;
a steam turbine 210.
Detailed Description
Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present utility model and are not to be construed as limiting the present utility model.
Referring to fig. 1, a steam piping system 100 according to an embodiment of the present utility model includes at least two steam shunt pipes 111, at least two pressure regulating valves 112, a main steam pipe 113, and a pressure regulating unit 114.
The steam shunt tubes 111 are connected to a corresponding one of the steam sources. Each steam shunt pipe 111 is provided with a pressure regulating valve 112. At least two steam shunt tubes 111 communicate with main steam tube 113. The pressure regulating unit 114 controls the opening degree of at least two pressure regulating valves 112.
The steam piping system 100 performs pressure adjustment on the steam by the pressure adjusting unit 114, so that the steam input to the main steam pipe 113 in each steam branching pipe 111 can be balanced with each other, which is beneficial to preventing backflow between different steam sources.
In fig. 1, A2, A3, A4 respectively represent different vapor sources. Each steam source is connected to a corresponding one of the steam distribution pipes 111. The steam source may consist of a corresponding one of the boiler systems, whereby steam may be provided by the boiler.
For different steam sources, when steam is supplied by the corresponding boilers, there will be different pressure levels of the steam produced by the different boilers, or, the difference in steam pressure between each other will be large.
In the case where one end of the steam bypass pipe 111 communicates with a corresponding steam source, and steam generated from the steam source flows along the steam bypass pipe 111, the pressure regulating valve 112 located on the steam bypass pipe 111 may regulate the pressure of the steam such that the pressure of the steam flowing out from the other end of the steam bypass pipe 111 is changed.
On the basis of the above, in case of determining the steam pressure in all the steam branch pipes 111 for the different steam branch pipes 111, the steam pressure can be increased or decreased accordingly by the pressure regulating valve 112. The opening degree of the pressure regulating valve 112 may correspond to the vapor pressure in the vapor shunt pipe 111 where the pressure regulating valve 112 is located.
Referring to fig. 1, in the case where it is determined that the vapor pressures generated by A1, A2, A3, A4 are sequentially reduced, the vapor pressure of the vapor shunt tubes 111 communicating with A1 and the vapor pressure of the vapor shunt tubes 111 communicating with A2 may be correspondingly reduced, and the vapor pressure of the vapor shunt tubes 111 communicating with A3 and the vapor pressure of the vapor shunt tubes 111 communicating with A4 may be correspondingly increased so that the vapor flowing out from the four vapor shunt tubes 111 have similar pressures. With similar pressures, the pressures of the exiting vapors may be the same, and the difference in pressures of the exiting vapors may be less than the corresponding difference threshold. The difference threshold may be determined by the specific case or may be calibrated by actual testing.
The pressure regulating valve 112 may comprise an electric motor. The pressure regulating valve 112 may regulate the valve opening degree by a motor. The pressure regulating unit 114 may control the motor drive to achieve the regulation of the valve opening of the control pressure regulating valve 112.
The pressure regulating unit 114 may include a DCS system (Distributed Control System, decentralized control system).
Referring to fig. 1, the steam piping system 100 includes a pressure detecting member 115.
The pressure detecting member 115 is provided at the steam shunt pipe 111. The pressure detecting member 115 is communicatively connected to the pressure adjusting unit 114. The pressure detecting member 115 is used for detecting the magnitude of the steam pressure in the steam bypass pipe 111 and generating a pressure signal to be sent to the pressure adjusting unit 114, so that the pressure adjusting unit 114 controls the opening magnitude of the pressure adjusting valve 112 according to the pressure signal.
Therefore, the scheme of adjusting the opening degree according to the steam pressure can be conveniently realized.
In fig. 1, the pressure detecting member 115 is denoted PT. Each of the steam shunt tubes 111 is provided with a pressure detecting member 115. In the case where steam flows in the steam bypass pipe 111, the pressure detecting member 115 may detect the pressure of the steam in the steam bypass pipe 111 to be able to determine the steam pressure. The pressure detecting member 115 may be provided at an end of the steam shunt pipe 111 near the main steam pipe 113, so that the pressure level when the steam flows from the steam shunt pipe 111 to the main steam pipe 113 can be determined.
In the case where the pressure detecting member 115 detects the steam pressure, a pressure signal may be generated according to the magnitude of the steam pressure. The pressure regulating unit 114, upon receiving the pressure signal, can then determine the magnitude of the steam pressure within the corresponding steam shunt tubes 111 from the pressure signal.
Referring to fig. 1, in the case that the steam supplied from the steam source A1 to the corresponding steam bypass pipe 111 has a large pressure, the pressure detecting member 115 on the steam bypass pipe 111 may detect the steam pressure in the steam bypass pipe 111 and send the pressure signal to the pressure adjusting unit 114 in the case of generating the corresponding pressure signal. The pressure adjusting unit 114 can determine that the steam pressure in the steam shunt pipe 111 is large according to the received pressure signal, so that the corresponding pressure adjusting valve 112 can be controlled to reduce the opening degree, and the pressure when the steam flows out of the steam shunt pipe 111 can be reduced.
In addition, the pressure detecting member 115 may be wired to the pressure adjusting unit 114 to achieve communication with each other, or may be wireless connected to the pressure adjusting unit 114 to achieve communication with each other.
Referring to fig. 1, the steam piping system 100 includes an early warning unit 117.
The pre-warning unit 117 is communicatively connected to the pressure detecting member 115. The warning unit 117 is configured to issue a warning signal if it is determined from the pressure signal that the steam pressure of the corresponding steam shunt pipe 111 exceeds the pressure adjustment range of the pressure adjustment valve 112. The pre-warning unit 117 may be communicatively connected to the pressure detecting member 115, so that the pressure regulating unit 114 may control the pressure regulating valve 112 on the corresponding steam bypass pipe 111 to be closed according to the pre-warning signal.
Therefore, the safety detection device can prompt workers to carry out safety detection in time, and safety accidents are avoided.
In fig. 1, in the case where the pressure detecting member 115 generates the pressure signal, the pressure signal may be transmitted to the early warning unit 117 at the same time as the pressure signal is transmitted to the pressure adjusting unit 114.
The pre-warning unit 117 may determine the magnitude of the steam pressure in the steam shunt pipe 111 according to the pressure signal, and may compare with the pressure adjustment range of the pressure adjustment valve 112, and in case that it is determined that the steam pressure is within the pressure adjustment range of the pressure adjustment valve 112, it means that the steam pressure is within a controllable range, and may adjust the steam pressure to a desired range by controlling the pressure adjustment valve 112. If it is determined that the steam pressure is out of the pressure adjustment range of the pressure adjustment valve 112, it means that there is a possibility that the steam pressure is uncontrollable, and if the steam is continuously obtained, a safety accident is likely to occur due to pressure imbalance.
The steam pressure exceeds the pressure adjusting range of the pressure adjusting valve 112, and is too large or too small corresponding to the steam pressure of the steam source, and under the condition that the steam source is formed by providing steam through the boiler, the steam pressure is possibly caused by the failure of the boiler, and by sending an early warning signal, a worker can be timely informed of safety detection on the steam pipeline system 100 and the boiler.
The pressure regulating unit 114 can control the pressure regulating valve 112 on the corresponding steam shunt pipeline 111 to be closed according to the early warning signal, so that risk expansion can be avoided.
Referring to fig. 1, a steam piping system 100 includes a cylinder 120. The cylinder 120 includes a main port 121 and at least two branch ports 122. The main steam port 121 communicates with the main steam line 113. At least two steam dividing ports 122 are communicated with the main steam port 121. Each split port 122 communicates with one of the steam split lines 111. At least two of the steam vents 122 are isolated from each other.
In this way, it is advantageous to prevent backflow between the different steam shunt tubes 111.
In fig. 1, each of the vapor shunt tubes 111 is connected to the cylinder 120, so that all of the vapor in the vapor shunt tubes 111 can be integrated into the cylinder 120. The vapors summarized into the cylinder 120 can balance pressure with each other. When the steam is collected in the cylinder 120, the steam flows from one of the steam dividing ports 122 into the other steam dividing port 122 can be reduced even if a large pressure difference exists due to the mutual isolation of the steam dividing ports 122, so that backflow can be prevented.
In addition, by adjusting the pressure of the steam in the steam bypass pipe 111 by the pressure adjusting valve 112, the pressure difference between the steam flowing into the cylinder 120 from the different steam bypass pipes 111 is relatively small, and the backflow is not easy to occur, so that the safety of the steam transportation can be further improved.
Referring to fig. 1, the steam piping system 100 includes a gating steam pipe 123.
The gating steam line 123 communicates the extraction steam line 124 with the main steam line 113. The gated steam pipe 123 is provided with a pressure reducing device 125. The pressure reducing device 125 is used to convert high pressure steam to low pressure steam.
The steam extraction pipe 124 and the main steam pipe 113 are communicated with a steam turbine 210, and the steam turbine 210 obtains high pressure steam through the main steam pipe 113 and discharges low pressure steam through the steam extraction pipe 124.
In this way, the low pressure steam requirements under different conditions can be met.
The steam piping system 100 may output high pressure steam through the main steam pipe 113. The steam turbine 210 may obtain high pressure steam through the main steam line 113 so as to be usable for power generation. The steam turbine 210 may output low pressure steam through the steam extraction line 124. The low pressure steam still has a certain temperature and can be used for heating or waste heat recovery. The turbine 210 may be an extraction turbine 210.
In fig. 1, one end of the extraction duct 124 communicates with the steam turbine 210, and the other end of the extraction duct 124 communicates with the low pressure steam port. The low pressure steam port is denoted B. The steam piping system 100 may output low pressure steam through the low pressure steam port so that the corresponding low pressure steam requirement may be satisfied.
When the steam turbine 210 is deactivated or in a maintenance state, low pressure steam cannot be output to the steam extraction pipe 124 through the steam turbine 210. In this case, please refer to fig. 1, by providing the gating steam pipe 123, the high pressure steam in the main steam pipe 113 can flow into the gating steam pipe 123, and the pressure reducing device 125 on the gating steam pipe 123 can perform pressure reduction conversion on the high pressure steam, so that the gating steam pipe 123 can output low pressure steam to the steam extraction pipe 124, thereby meeting the low pressure steam requirement.
The pressure reducing device 125 may be a temperature and pressure reducing device 125, i.e. the steam pressure may be reduced by reducing the steam temperature.
Referring to fig. 1, the steam piping system 100 includes a first gate valve 126, a second gate valve 127, and a gate adjusting unit 128.
The first gating valve 126 is disposed in one of the main steam line 113 and the extraction steam line 124, and is located between the gating steam line 123 and the steam turbine 210.
The second gating valve 127 is disposed at the gating steam pipe 123. The gate adjustment unit 128 is used for interlockingly controlling the first gate valve 126 and the second gate valve 127 such that one of the first gate valve 126 and the second gate valve 127 is opened and the other is closed.
In this way, a specific solution for generating low-pressure steam in different situations can be achieved.
In fig. 1, in case that the steam turbine 210 is in a start-up state, it may be determined that low-pressure steam can be generated through the steam turbine 210 so that the gating steam pipe 123 does not need to be conducted, the first gating valve 126 may be controlled to be opened by the gating control unit 128 so that steam flows between the main steam pipe 113 and the steam extraction pipe 124, and the second gating valve 127 may be controlled to be closed by the gating control unit 128 so that steam does not flow to the steam extraction pipe 124 through the gating steam pipe 123.
The control of the first gate valve 126 and the second gate valve 127 by the gate adjusting unit 128 is an interlocking control, that is, in the case of controlling the first gate valve 126 to be opened, the second gate valve 127 is correspondingly controlled to be closed, or in the case of controlling the second gate valve 127 to be opened, the first gate valve 126 is correspondingly controlled to be closed. By the interlock control, it is possible to avoid a case where the main steam pipe 113 can communicate with the steam extraction pipe 124 through the steam turbine 210 and the gating steam pipe 123 at the same time.
Referring to fig. 1, the steam piping system 100 includes at least two first gate valves 126. One of the first gate valves 126 is provided in the main steam line 113, and the other first gate valve 126 is provided in the steam extraction line 124.
The gate adjustment unit 128 is further configured to control the at least two first gate valves 126 in a coordinated manner such that the at least two first gate valves 126 are opened or closed.
Thus, the on-off control effect on the steam pipeline is improved.
In fig. 1, when the low pressure steam demand is satisfied by the steam turbine 210, the first gating valve 126 located on the main steam pipe 113 may be opened so that the main steam pipe 113 can input high pressure steam to the steam turbine 210. The steam turbine 210 may open the first gate valve 126 located on the steam extraction pipe 124 when generating low pressure steam, so that the steam turbine 210 can output the low pressure steam to the steam extraction pipe 124.
When the steam turbine 210 fails to meet the low pressure steam requirement due to not being started or being maintained, the second gating valve 127 on the gating steam pipe 123 may be opened to allow the high pressure steam to be depressurized and converted by the depressurizing device 125 to form low pressure steam. In this process, the first gating valve 126 located on the main steam line 113 is closed so that high pressure steam cannot be input into the steam turbine 210 through the main steam line 113. The first gate valve 126 on the extraction duct 124 is closed so that low pressure steam cannot be reverse-fed into the turbine 210 through the extraction duct 124.
On the basis of the above, by arranging the different first gating valves 126 respectively positioned on the main steam pipeline 113 and the steam extraction pipeline 124, the steam turbine 210 can be completely disconnected from the main steam pipeline 113 and the steam extraction pipeline 124, and steam can not flow to the steam turbine 210 to cause potential safety hazards, so that the on-off control effect on the steam pipeline can be improved.
Referring to fig. 1, the steam piping system 100 includes at least two second gate valves 127. One of the second gate valves 127 is provided at one side of the pressure reducing device 125, and the other second gate valve 127 is provided at the other side of the pressure reducing device 125.
The gate adjusting unit 128 is further configured to control the at least two second gate valves 127 in a coordinated manner such that the at least two second gate valves 127 are opened or closed.
Thus, the on-off control effect on the steam pipeline is improved.
In fig. 1, when the low pressure steam demand is satisfied by the pressure reducing device 125, the second gate valve 127 located at a side of the pressure reducing device 125 near the main steam pipe 113 may be opened so that the main steam pipe 113 can input high pressure steam to the pressure reducing device 125. The pressure reducing device 125 may open a second gate valve 127 at a side of the pressure reducing device 125 near the steam extraction pipe 124 when generating low pressure steam, so that the pressure reducing device 125 can output the low pressure steam to the steam extraction pipe 124.
When it is desired to satisfy the low pressure steam demand by the steam turbine 210, the second gating valve 127 located on the side of the gating steam pipe 123 close to the main steam pipe 113 is closed so that the high pressure steam is not inputted into the pressure reducing device 125. The second gating valve 127 located on the side of the gating steam pipe 123 near the steam extraction pipe 124 is closed so that the low pressure steam fed from the steam turbine 210 to the steam extraction pipe 124 is not fed back to the pressure reducing device 125.
On the basis of the above, by arranging the second gate valves 127 respectively positioned at two sides of the pressure reducing device 125, the pressure reducing device 125 is completely disconnected from the main steam pipeline 113 and the steam extraction pipeline 124, and steam does not flow to the pressure reducing device 125 to cause potential safety hazard, so that the on-off control effect of the steam pipeline can be improved.
Referring to fig. 1, the steam piping system 100 includes at least two gating steam pipes 123. Each of the gating steam lines 123 is provided with a second gating valve 127.
The gating regulation unit 128 is further configured to control the second gating valves 127 on the at least one gating steam pipe 123 to be opened when the first gating valve 126 is closed, and to control all the second gating valves 127 to be closed when the first gating valve 126 is opened.
In this way, it is advantageous to increase the amount of steam output of low pressure steam through the gating steam pipe 123.
It will be appreciated that by providing different gated steam lines 123, the high pressure steam may be depressurized through different depressurization devices 125 for the steam line system 100, thereby increasing the amount of steam that is generated by the gated steam lines 123 to produce low pressure steam. The number of the gate steam pipes 123 may be determined according to the steam amount of the low pressure steam outputted from the steam turbine 210, or may be adjusted according to actual demands.
A steam turbine power generation system 200 according to an embodiment of the present utility model includes the steam pipe system 100 and the steam turbine 210 according to any of the above embodiments. The steam turbine 210 is piped to the main steam line 113.
In the turbine power generation system 200, the pressure of the steam is adjusted by the pressure adjusting unit 114, so that the steam input to the main steam pipeline 113 in each steam branch pipeline 111 can be balanced, which is beneficial to preventing backflow between different steam sources.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. A steam piping system, comprising:
at least two steam shunt pipelines, each steam shunt pipeline is connected with a corresponding steam source;
at least two pressure regulating valves, one for each of said vapor shunt tubes;
a main steam pipe, the at least two steam shunt pipes communicating with the main steam pipe; and
and the pressure regulating unit is used for controlling the opening degree of the at least two pressure regulating valves.
2. The steam piping system of claim 1, wherein said steam piping system comprises:
the pressure detection piece is arranged in the steam shunt pipeline and is in communication connection with the pressure adjusting unit, and the pressure detection piece is used for detecting the steam pressure in the steam shunt pipeline and generating a pressure signal to send to the pressure adjusting unit, so that the pressure adjusting unit controls the opening degree of the pressure adjusting valve according to the pressure signal.
3. The steam piping system of claim 2, wherein said steam piping system comprises:
the early warning unit is in communication connection with the pressure detection part and is used for sending an early warning signal under the condition that the corresponding steam pressure of the steam shunt pipeline is determined to exceed the pressure regulating range of the pressure regulating valve according to the pressure signal,
the pressure regulating unit can control the corresponding pressure regulating valve on the steam shunt pipeline to be closed according to the early warning signal.
4. The steam piping system of claim 1, wherein said steam piping system comprises:
the cylinder comprises a main steam port and at least two steam dividing ports, the main steam port is communicated with the main steam pipeline, the at least two steam dividing ports are communicated with the main steam port, each steam dividing port is communicated with one steam dividing pipeline, and the at least two steam dividing ports are mutually isolated.
5. The steam piping system of claim 1, wherein said steam piping system comprises:
the gating steam pipeline is communicated with the steam extraction pipeline and the main steam pipeline, and is provided with a pressure reducing device which is used for converting high-pressure steam into low-pressure steam;
the steam extraction pipeline is communicated with the main steam pipeline, and the steam turbine obtains high-pressure steam through the main steam pipeline and discharges low-pressure steam through the steam extraction pipeline.
6. The steam piping system of claim 5, wherein said steam piping system comprises:
a first gating valve disposed in one of the main steam pipe and the steam extraction pipe and located between the gating steam pipe and the steam turbine;
a second gating valve disposed in the gating steam line; and
and a gate regulating unit for interlockingly controlling the first gate valve and the second gate valve such that one of the first gate valve and the second gate valve is opened and the other is closed.
7. The steam piping system of claim 6, wherein said steam piping system comprises:
at least two first gating valves, one of which is arranged on the main steam pipeline, the other one of which is arranged on the steam extraction pipeline,
the gating regulation unit is also used for controlling at least two first gating valves in a linkage mode so that the at least two first gating valves are opened or closed.
8. The steam piping system of claim 6, wherein said steam piping system comprises:
at least two second gate valves, one of which is disposed at one side of the pressure reducing device, the other of which is disposed at the other side of the pressure reducing device,
the gating regulation unit is also used for controlling at least two second gating valves in a linkage mode so that the at least two second gating valves are opened or closed.
9. The steam piping system of claim 6, wherein said steam piping system comprises:
at least two said gating steam lines, each said gating steam line being provided with said second gating valve,
the gating regulation unit is further used for controlling the second gating valves on at least one gating steam pipeline to be opened when the first gating valves are closed, and controlling all the second gating valves to be closed when the first gating valves are opened.
10. A steam turbine power generation system comprising:
the steam piping system of any of claims 1-9; and
and the steam turbine pipeline is connected with the main steam pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321352024.4U CN219733479U (en) | 2023-05-30 | 2023-05-30 | Steam pipeline system and steam turbine power generation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321352024.4U CN219733479U (en) | 2023-05-30 | 2023-05-30 | Steam pipeline system and steam turbine power generation system |
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| Publication Number | Publication Date |
|---|---|
| CN219733479U true CN219733479U (en) | 2023-09-22 |
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| CN202321352024.4U Active CN219733479U (en) | 2023-05-30 | 2023-05-30 | Steam pipeline system and steam turbine power generation system |
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| CN (1) | CN219733479U (en) |
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2023
- 2023-05-30 CN CN202321352024.4U patent/CN219733479U/en active Active
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