CN218509556U - Steam utilization regulating system - Google Patents
Steam utilization regulating system Download PDFInfo
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- CN218509556U CN218509556U CN202222251774.4U CN202222251774U CN218509556U CN 218509556 U CN218509556 U CN 218509556U CN 202222251774 U CN202222251774 U CN 202222251774U CN 218509556 U CN218509556 U CN 218509556U
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Abstract
The utility model discloses a steam using governing system, this steam using governing system include steam turbine, middling pressure pipeline, first low pressure pipeline and turbine, the steam turbine has the steam extraction pipeline, the first end of middling pressure pipeline with steam extraction pipeline intercommunication, the second end of middling pressure pipeline is suitable for the pipeline intercommunication with the middling pressure user, the first end of first low pressure pipeline with steam extraction pipeline intercommunication, the second end of first low pressure pipeline be suitable for with low pressure user's pipeline intercommunication, turbine series connection is in on the first low pressure pipeline. The utility model discloses an energy recuperation with steam governing system utilizes the turbine with steam has effectively reduced the loss of steam from high parameter temperature reduction decompression to low parameter time energy.
Description
Technical Field
The utility model belongs to the technical field of the heat supply, especially, relate to a steam governing system.
Background
The steam power plant carries out central heating to surrounding with vapour enterprise and bans enterprise from building the small boiler, not only can reduce carbon emission and alleviate environmental pollution, and simultaneously, the heating equipment investment that the large-scale heat supply of power plant also can save the vapour enterprise and reduce the operation cost, nevertheless different with vapour enterprise is different to the demand of steam parameter, and the steam parameter of power plant export is unified, the heating method in the correlation technique generally all supplies heat according to the mode that satisfies user's maximum parameter, the mode that directly adopts the decompression to the heat supply user of low parameter satisfies the heat supply demand, not only caused the energy very big waste, the economic nature has also been reduced.
SUMMERY OF THE UTILITY MODEL
The present invention aims at solving at least one of the technical problems in the related art to a certain extent. Therefore, the embodiment of the utility model provides a steam control system, this steam control system utilizes the energy recuperation of turbine with steam, has effectively reduced the loss of energy when steam is from high parameter temperature reduction decompression to low parameter.
The utility model discloses with vapour governing system includes steam turbine, middling pressure pipeline, first low pressure pipeline and turbine, the steam turbine has the steam extraction pipeline, the first end of middling pressure pipeline with the steam extraction pipeline intercommunication, the second end of middling pressure pipeline is suitable for the pipeline intercommunication with the middling pressure user, the first end of first low pressure pipeline with the steam extraction pipeline intercommunication, the second end of first low pressure pipeline be suitable for with low pressure user's pipeline intercommunication, turbine series connection be in on the first low pressure pipeline.
The utility model discloses pass through the setting of turbine with vapour governing system, with the energy recuperation of steam, effectively reduced the loss of steam from high parameter temperature reduction decompression to energy when the low parameter, improve power plant or user's income, need not install temperature and pressure reduction device simultaneously, saved installation temperature and pressure reduction device's expense.
In some embodiments, the steam-using regulating system comprises a second low-pressure pipeline, a first pressure reducing valve and a reversing assembly, a first end of the second low-pressure pipeline is communicated with the steam extraction pipeline, a second end of the second low-pressure pipeline is suitable for being communicated with a pipeline of a low-pressure user, the first pressure reducing valve is connected in series to the second low-pressure pipeline, the reversing assembly is respectively connected with the first low-pressure pipeline and the second low-pressure pipeline, and the reversing assembly is used for controlling the connection and disconnection of the first low-pressure pipeline and the second low-pressure pipeline.
In some embodiments, the reversing assembly comprises a first quick-closing valve and a second quick-closing valve, the first quick-closing valve being connected in series on the first low-pressure conduit, the second quick-closing valve being connected in series on the second low-pressure conduit;
or the reversing assembly comprises a three-way valve, an inlet of the three-way valve is communicated with the steam extraction pipeline, a first outlet of the three-way valve is communicated with the first end of the first low-pressure pipeline, and a second outlet of the three-way valve is communicated with the first end of the second low-pressure pipeline.
In some embodiments, the steam control system further includes a flow control valve provided on the steam extraction pipe, the flow control valve being configured to control a steam flow to the intermediate pressure pipe and the first low pressure pipe, or the flow control valve being configured to control a steam flow to the intermediate pressure pipe and the second low pressure pipe.
In some embodiments, the steam using regulation system further comprises a filter screen and a steam trap, and the filter screen, the steam trap and the turbine are sequentially connected in series to the first low-pressure pipe in a flow direction of steam in the first low-pressure pipe.
In some embodiments, the steam usage regulating system further comprises a steam regulating valve, and the steam regulating valve and the turbine are connected in series to the first low pressure pipe in series in the flow direction of the steam in the first low pressure pipe.
In some embodiments, the steam usage regulating system further comprises a steam exhaust valve, and the steam turbine and the steam exhaust valve are connected in series to the first low-pressure pipe in sequence along the flow direction of the steam in the first low-pressure pipe.
In some embodiments, the steam-using regulation system further includes a check valve, and the turbine and the check valve are connected in series to the first low-pressure pipe in sequence along the flow direction of the steam in the first low-pressure pipe.
In some embodiments, the steam conditioning system further comprises a first generator and a second generator, the first generator is in transmission connection with the turbine, the turbine drives the first generator to operate under the action of steam to generate electricity, the second generator is in transmission connection with the steam turbine, and the steam turbine drives the second generator to operate to generate electricity.
In some embodiments, the steam admission control system further comprises a second pressure relief valve connected in series to the medium pressure conduit.
Drawings
Fig. 1 is a schematic view of a steam conditioning system according to an embodiment of the present invention.
Fig. 2 is a schematic view of a steam control system according to another embodiment of the present invention.
Reference numerals:
a medium voltage user 100; a low voltage user 200;
a steam turbine 11; a steam extraction pipe 12; a flow rate regulating valve 13;
a medium-pressure conduit 21; a second pressure reducing valve 22;
a first low-pressure duct 31; a turbine 32; a strainer 33; a trap 34; a steam regulating valve 35; an exhaust valve 36; a check valve 37;
a second low-pressure duct 41; a first pressure reducing valve 42;
a first quick-closing valve 51; a second quick-closing valve 52; a three-way valve 53;
a first generator 61; a second generator 62.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
The following describes a steam control system according to an embodiment of the present invention with reference to the drawings.
As shown in fig. 1 and 2, a steam conditioning system according to an embodiment of the present invention includes a steam turbine 11, an intermediate pressure pipe 21, a first low pressure pipe 31, and a turbine 32.
The steam turbine 11 has a steam extraction pipeline 12, the steam extraction pipeline 12 is used for conveying steam generated by the steam turbine 11 to a downstream pipeline, a first end of an intermediate-pressure pipeline 21 is communicated with the steam extraction pipeline 12, a second end of the intermediate-pressure pipeline 21 is suitable for being communicated with a pipeline of an intermediate-pressure user 100, the intermediate-pressure pipeline 21 is used for conveying the steam generated by the steam turbine 11 to the pipeline of the intermediate-pressure user 100 to provide steam for the intermediate-pressure user 100, a first end of a first low-pressure pipeline 31 is communicated with the steam extraction pipeline 12, a second end of the first low-pressure pipeline 31 is suitable for being communicated with a pipeline of a low-pressure user 200, the first low-pressure pipeline 31 is used for conveying the steam generated by the steam turbine 11 to the pipeline of the low-pressure user 200 to provide steam for the low-pressure user 200, a turbine 32 is connected in series to the first low-pressure pipeline 31, the turbine 32 may be disposed at an electrical plant or at the low-pressure user 200, and when the steam in the first low-pressure pipeline 31 flows through the turbine 32, the turbine 32 recycles the energy of the steam.
The utility model discloses with vapour governing system through turbine 32 will flow through the steam energy of turbine 32 and carry out recycle, make the steam temperature reduction of high parameter decompress to the low parameter, not only need not to install temperature reduction and pressure reduction means again, improved the energy utilization of steam moreover, improved the economic nature of system.
As shown in fig. 1 and fig. 2, in some embodiments, the steam utilization system includes a second low pressure pipeline 41, a first pressure reducing valve 42 and a reversing assembly, a first end of the second low pressure pipeline 41 is communicated with the steam extraction pipeline 12, a second end of the second low pressure pipeline 41 is suitable for being communicated with a pipeline of the low pressure user 200, the second low pressure pipeline 41 is used for conveying steam generated by the steam turbine 11 to the pipeline of the low pressure user 200 to provide steam for the low pressure user 200, the first pressure reducing valve 42 is connected to the second low pressure pipeline 41 in series, the first pressure reducing valve 42 reduces temperature and pressure of the steam flowing through the first pressure reducing valve 42, reduces temperature and pressure of the high-parameter steam to low-parameter steam, and enables the steam conveyed to the pipeline of the low pressure user 200 to meet the steam utilization standard of the low pressure user 200, the reversing assembly is respectively connected to the first low pressure pipeline 31 and the second low pressure pipeline 41, and the reversing assembly is used for controlling the connection and disconnection of the first low pressure pipeline 31 and the second low pressure pipeline 41.
It should be noted that, when the first low-pressure pipe 31 and the components on the first low-pressure pipe 31 work normally, the reversing assembly enables the first low-pressure pipe 31 to be conducted and the second low-pressure passage to be closed, so that the steam flowing to the low-pressure user 200 flows to the low-pressure user 200 pipe after being subjected to temperature and pressure reduction by the turbine 32; when the first low-pressure pipe 31 or a component on the first low-pressure pipe 31 fails, the reversing assembly closes the first low-pressure pipe 31 and conducts the second low-pressure passage, so that the steam flowing to the low-pressure user 200 flows to the low-pressure user 200 pipe after being subjected to temperature and pressure reduction by the first pressure reducing valve 42.
Therefore, in these embodiments, the utility model discloses with vapour governing system through the setting of second low pressure pipeline 41 and switching-over subassembly, when the part on first low pressure pipeline 31 or the first low pressure pipeline 31 breaks down, the switching-over subassembly closes first low pressure pipeline 31 and switches on second low pressure pipeline 41, supplies vapour to low pressure user 200 through second low pressure pipeline 41 when making first low pressure pipeline 31 overhaul.
As shown in fig. 1, optionally, the reversing assembly includes a first quick-closing valve 51 and a second quick-closing valve 52, the first quick-closing valve 51 is connected in series to the first low-pressure pipeline 31, the second quick-closing valve 52 is connected in series to the second low-pressure pipeline 41, the first low-pressure pipeline 31 is opened and the second low-pressure pipeline 41 is closed by opening the first quick-closing valve 51 and closing the second quick-closing valve 52, and the first low-pressure pipeline 31 is closed and the second low-pressure pipeline 41 is opened by closing the first quick-closing valve 51 and opening the second quick-closing valve 52.
As shown in fig. 2, optionally, the reversing component includes a three-way valve 53, an inlet of the three-way valve 53 is communicated with the steam extraction pipe 12, a first outlet of the three-way valve 53 is communicated with a first end of the first low-pressure pipe 31, a second outlet of the three-way valve 53 is communicated with a first end of the second low-pressure pipe 41, the first low-pressure pipe 31 is communicated and the second low-pressure pipe 41 is closed by communicating the inlet of the three-way valve 53 and the first outlet of the three-way valve 53, and the first low-pressure pipe 31 is closed and the second low-pressure pipe 41 is communicated by communicating the inlet of the three-way valve 53 and the second outlet of the three-way valve 53.
As shown in fig. 1 and 2, in some embodiments, the steam control system further includes a flow control valve 13, the flow control valve 13 is disposed on the exhaust pipe, when the steam in the steam extraction pipe 12 passes through the flow control valve 13, the flow control valve 13 allows a part of the steam to be delivered to the medium pressure consumer 100 and another part of the steam to be delivered to the low pressure consumer 200, when the first low pressure pipe 31 is opened and the second low pressure pipe 41 is closed, the flow control valve 13 is configured to control the steam flow to the medium pressure pipe 21 and the first low pressure pipe 31, and when the first low pressure pipe 31 is closed and the second low pressure pipe 41 is opened, the flow control valve 13 is configured to control the steam flow to the medium pressure pipe 21 and the second low pressure pipe 41.
As shown in fig. 1 and fig. 2, in some embodiments, the steam-conditioning system further includes a strainer 33 and a steam trap 34, the strainer 33, the steam trap 34 and the turbine 32 are connected in series to the first low-pressure pipe 31 in sequence along the flow direction of the steam in the first low-pressure pipe 31, the steam flowing into the first low-pressure pipe 31 first passes through the strainer 33, the strainer 33 filters liquid water in the steam and traps the water through the steam trap 34, and thereby the turbine 32 is prevented from entering water to cause severe accidents such as friction and vibration of the moving and static parts of the plant, and even cylinder deformation, large shaft bending or blade fracture.
As shown in fig. 1 and 2, in some embodiments, the steam-conditioning system further includes a steam-regulating valve 35, the steam-regulating valve 35 and the turbine 32 are serially connected to the first low-pressure pipe 31 in series in the flow direction of the steam in the first low-pressure pipe 31, and the steam-regulating valve 35 is used for controlling the flow of the steam into the turbine 32.
As shown in fig. 1 and 2, in some embodiments, the steam-conditioning system further includes a steam exhaust valve 36, the turbine 32 and the steam exhaust valve 36 are connected in series to the first low-pressure pipe 31 in the flow direction of the steam in the first low-pressure pipe 31, and the steam exhaust valve 36 is used for adjusting the exhaust flow rate of the turbine 32.
As shown in fig. 1 and 2, in some embodiments, the steam-conditioning system further includes a check valve 37, the turbine 32 and the check valve 37 are connected in series to the first low-pressure pipe 31 in series in the flow direction of the steam in the first low-pressure pipe 31, and the check valve 37 is used for preventing the steam from flowing back into the turbine 32.
As shown in fig. 1 and 2, in some embodiments, the steam conditioning system further includes a first generator 61 and a second generator 62, the first generator 61 is in transmission connection with the turbine 32, the turbine 32 drives the first generator 61 to operate and generate power under the action of steam, the second generator 62 is in transmission connection with the steam turbine 11, and the steam turbine 11 drives the second generator 62 to operate and generate power. Therefore, the utility model discloses with vapour governing system passes through the setting of first generator 61 and second generator 62, and turbine 32 drives first generator 61 through the gearbox and produces the electric energy to for near user provides electric power, steam turbine 11 is connected with second generator 62 through the shaft coupling, provides electric power for the electric wire netting.
As shown in fig. 1 and 2, in some embodiments, the steam-using regulation system further includes a second pressure reducing valve 22, the second pressure reducing valve 22 is connected in series to the medium-pressure pipeline 21, and the second pressure reducing valve 22 reduces the temperature and pressure of the steam flowing through the second pressure reducing valve 22, so that the steam delivered to the medium-pressure user 100 pipeline meets the steam-using standard of the medium-pressure user 100.
In a specific embodiment, the turbine is required to supply 30t/h of saturated steam of 1.4MPa and 0.6MPa simultaneously. In order to meet the requirement of a steam user A with 1.4MPa, the parameter of a steam extraction port needs to be higher than 1.4MPa in consideration of pipeline loss, the parameter has too much waste heat which needs to be reduced in temperature and pressure for a steam user B with 0.6MPa, a turbine for energy recovery is arranged at the steam user B with 0.6MPa, and the steam pressure is reduced from 1.4MPa to 0.6MPa, so that the requirement of the steam user B is met. After 30t/h saturated steam passes through the turbine, the steam pressure is reduced from 1.4MPa to 0.6MPa, the internal efficiency of the turbine is considered to be 70%, the efficiency of a gearbox is considered to be 90%, the efficiency of a generator is considered to be 90%, the power generation power can reach 750kW, and the steam exhaust of the turbine also meets the steam demand of a steam user B.
The utility model discloses a steam expansion acting in the steam turbine changes the principle of heat energy conversion into electric energy, can effectively reduce the loss of steam from high parameter temperature reduction decompression to low parameter heat energy when, but this partial heat recovery volume has about 70%, has not only played the effect that the coal-economizing falls the carbon, has still brought economic profit.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the present disclosure, the terms "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although the above embodiments have been shown and described, it should be understood that they are exemplary and should not be construed as limiting the present invention, and that many changes, modifications, substitutions and alterations to the above embodiments by those of ordinary skill in the art are intended to be within the scope of the present invention.
Claims (10)
1. A steam usage conditioning system, comprising:
a steam turbine having a steam extraction conduit;
a medium pressure conduit, a first end of which is in communication with the steam extraction conduit and a second end of which is adapted to be in communication with a conduit of a medium pressure user;
a first low pressure conduit having a first end in communication with the steam extraction conduit and a second end adapted to communicate with a low pressure user's conduit;
a turbine connected in series to the first low pressure conduit.
2. The steam admission system of claim 1, further comprising:
a second low pressure conduit having a first end in communication with the steam extraction conduit and a second end adapted to communicate with a low pressure user's conduit;
a first pressure reducing valve connected in series on the second low pressure conduit;
the reversing assembly is connected with the first low-pressure pipeline and the second low-pressure pipeline respectively and used for controlling the connection and disconnection of the first low-pressure pipeline and the second low-pressure pipeline.
3. The steam conditioning system of claim 2, wherein the reversing assembly includes a first quick-closing valve and a second quick-closing valve, the first quick-closing valve being connected in series to the first low-pressure conduit, the second quick-closing valve being connected in series to the second low-pressure conduit;
or the reversing assembly comprises a three-way valve, an inlet of the three-way valve is communicated with the steam extraction pipeline, a first outlet of the three-way valve is communicated with the first end of the first low-pressure pipeline, and a second outlet of the three-way valve is communicated with the first end of the second low-pressure pipeline.
4. The steam usage adjusting system according to claim 2, further comprising a flow adjusting valve provided on the steam extraction pipe, the flow adjusting valve being configured to control a steam flow to the intermediate pressure pipe and the first low pressure pipe, or the flow adjusting valve being configured to control a steam flow to the intermediate pressure pipe and the second low pressure pipe.
5. The steam utility conditioning system of claim 1, further comprising a screen and a trap, the screen, the trap and the turbine being connected in series to the first low pressure conduit in sequence along the direction of flow of steam in the first low pressure conduit.
6. The steam utility conditioning system of claim 1, further comprising a steam regulating valve, the steam regulating valve and the turbine being serially connected to the first low pressure conduit in series in a flow direction of steam within the first low pressure conduit.
7. The steam usage regulating system of claim 1, further comprising a steam exhaust valve, wherein the steam permeable and the steam exhaust valve are connected in series to the first low pressure pipe in series in the flow direction of steam in the first low pressure pipe.
8. The steam utility regulating system of claim 1, further comprising a check valve, wherein the turbine and the check valve are connected in series to the first low-pressure pipe in sequence along a flow direction of steam in the first low-pressure pipe.
9. The steam conditioning system of claim 1, further comprising a first generator and a second generator, wherein the first generator is in driving connection with the turbine, the turbine drives the first generator to operate under the action of the steam to generate electricity, the second generator is in driving connection with the steam turbine, and the steam turbine drives the second generator to operate to generate electricity.
10. The steam admission control system of claim 1, further comprising a second pressure relief valve connected in series on said intermediate pressure conduit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222251774.4U CN218509556U (en) | 2022-08-25 | 2022-08-25 | Steam utilization regulating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222251774.4U CN218509556U (en) | 2022-08-25 | 2022-08-25 | Steam utilization regulating system |
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| CN218509556U true CN218509556U (en) | 2023-02-21 |
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| CN202222251774.4U Active CN218509556U (en) | 2022-08-25 | 2022-08-25 | Steam utilization regulating system |
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- 2022-08-25 CN CN202222251774.4U patent/CN218509556U/en active Active
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