CN114992419A - Steam pressure-reducing and temperature-reducing device - Google Patents
Steam pressure-reducing and temperature-reducing device Download PDFInfo
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- CN114992419A CN114992419A CN202210614296.0A CN202210614296A CN114992419A CN 114992419 A CN114992419 A CN 114992419A CN 202210614296 A CN202210614296 A CN 202210614296A CN 114992419 A CN114992419 A CN 114992419A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/02—Energy absorbers; Noise absorbers
- F16L55/027—Throttle passages
- F16L55/0279—The fluid flowing two or more times longitudinally in opposite directions, e.g. using parallel or concentric tubes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L53/00—Heating of pipes or pipe systems; Cooling of pipes or pipe systems
- F16L53/70—Cooling of pipes or pipe systems
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L53/00—Heating of pipes or pipe systems; Cooling of pipes or pipe systems
- F16L53/70—Cooling of pipes or pipe systems
- F16L53/75—Cooling of pipes or pipe systems using cooling fins
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/02—Energy absorbers; Noise absorbers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/02—Energy absorbers; Noise absorbers
- F16L55/027—Throttle passages
- F16L55/02709—Throttle passages in the form of perforated plates
- F16L55/02718—Throttle passages in the form of perforated plates placed transversely
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/02—Energy absorbers; Noise absorbers
- F16L55/033—Noise absorbers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/02—Energy absorbers; Noise absorbers
- F16L55/033—Noise absorbers
- F16L55/0336—Noise absorbers by means of sound-absorbing materials
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
- Y02P80/15—On-site combined power, heat or cool generation or distribution, e.g. combined heat and power [CHP] supply
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention provides a steam pressure-reducing and temperature-reducing device, which comprises: the steam generator comprises a shell, a steam inlet and a steam outlet are formed in the shell; the first pressure reducing channel is arranged in the mounting cavity and is provided with a first pressure reducing inlet and a first pressure reducing outlet, the inner diameter of the first pressure reducing channel is gradually increased from the first pressure reducing inlet to the first pressure reducing outlet, and the first pressure reducing inlet is communicated with the steam inlet; the second pressure reducing channel is arranged in the mounting cavity and is provided with a second pressure reducing inlet and a second pressure reducing outlet, the inner diameter of the second pressure reducing channel is gradually increased from the second pressure reducing inlet to the second pressure reducing outlet, the second pressure reducing inlet is communicated with the first pressure reducing outlet, and the second pressure reducing outlet is communicated with the steam outlet; and the water spraying mechanism is provided with a plurality of water spraying ports and is used for spraying water to cool the steam. The invention provides a steam pressure-reducing and temperature-reducing device, and aims to solve the problems that in the prior art, the flow rate of steam of a temperature-reducing and pressure-reducing device is high and is difficult to control, and the flow-induced noise is obvious.
Description
Technical Field
The invention relates to the technical field of pressure reducing devices, in particular to a steam pressure reducing and cooling device.
Background
In a heat energy power system, the temperature and pressure of steam in different pipelines need to be reduced, for example, in a steam discharging system, a temperature and pressure reducing box reduces the temperature and pressure of the steam to a certain range, and then discharges the steam to a condenser, so that the flow impact and thermal impact of high-temperature and high-pressure steam on a heat transfer pipe and other structures of the condenser are reduced. The temperature and pressure reducing device which is usually adopted is limited by the structural form, the pressure reducing level is less, the primary pressure reducing ratio is larger, and meanwhile, the flow speed in the steam pressure reducing process is higher and difficult to control, so that the problem that noise is more obvious due to flow in the operation process of the temperature and pressure reducing device is caused, and adverse effects are caused to the surrounding environment and personnel.
Disclosure of Invention
The invention provides a steam pressure-reducing and cooling device, which is used for solving the problems that the steam flow rate of a temperature-reducing and pressure-reducing device in the prior art is high and is difficult to control, and the flow-induced noise is obvious.
The invention provides a steam pressure-reducing and temperature-reducing device, which comprises:
the steam-water separator comprises a shell, a water inlet, a water outlet and a steam outlet, wherein an installation cavity is formed in the shell;
the first pressure reducing channel is arranged in the mounting cavity and provided with a first pressure reducing inlet and a first pressure reducing outlet, the inner diameter of the first pressure reducing channel is gradually increased from the first pressure reducing inlet to the first pressure reducing outlet, and the first pressure reducing inlet is communicated with the steam inlet;
the second pressure reducing channel is arranged in the mounting cavity and provided with a second pressure reducing inlet and a second pressure reducing outlet, the inner diameter of the second pressure reducing channel is gradually increased from the second pressure reducing inlet to the second pressure reducing outlet, the second pressure reducing inlet is communicated with the first pressure reducing outlet, and the second pressure reducing outlet is communicated with the steam outlet; and the number of the first and second groups,
and the water spraying mechanism is arranged between the second depressurization outlet and the steam outlet, and is provided with a plurality of water spraying nozzles for spraying water and cooling the steam.
According to the steam pressure-reducing and temperature-reducing device provided by the invention, the second pressure-reducing channels comprise a plurality of second pressure-reducing channels which are annularly arranged in the circumferential direction of the first pressure-reducing channel.
According to the steam pressure-reducing and temperature-reducing device provided by the invention, a plurality of pressure-reducing pore plates are arranged in the first pressure-reducing channel and the second pressure-reducing channel, and the pressure-reducing pore plates are sequentially arranged at intervals along the axial direction of the first pressure-reducing channel or the second pressure-reducing channel.
According to the steam pressure-reducing and temperature-reducing device provided by the invention, the pressure-reducing pore plate comprises a first pressure-reducing pore plate and a second pressure-reducing pore plate, and the first pressure-reducing pore plate and the second pressure-reducing pore plate are alternately arranged in the first pressure-reducing channel or the second pressure-reducing channel;
the first pressure reduction pore plate is provided with a first pressure reduction pore, the second pressure reduction pore plate is provided with a second pressure reduction pore, and the first pressure reduction pore and the second pressure reduction pore are different in shape.
According to the steam pressure-reducing and temperature-reducing device provided by the invention, a pressure-reducing gap is formed between the first pressure-reducing pore plate and the second pressure-reducing pore plate, the pressure-reducing gap is gradually increased from the first pressure-reducing inlet to the first pressure-reducing outlet, and is increased from the second pressure-reducing inlet to the second pressure-reducing outlet.
According to the steam pressure-reducing and temperature-reducing device provided by the invention, the first pressure-reducing holes are round holes, and the second pressure-reducing holes are narrow slits.
According to the steam pressure-reducing and temperature-reducing device provided by the invention, the metal wire mesh is arranged between the first pressure-reducing outlet and the second pressure-reducing inlet, and steam enters the second pressure-reducing inlet through the metal wire mesh.
According to the steam pressure-reducing and temperature-reducing device provided by the invention, sound-insulating foam is wrapped on the peripheries of the first pressure-reducing channel and the second pressure-reducing channel.
According to the steam pressure-reducing and temperature-reducing device provided by the invention, the steam channel is arranged between the steam inlet and the first pressure-reducing inlet, and the steam channel is internally provided with a plurality of heat-radiating rib plates.
According to the steam pressure-reducing and temperature-reducing device provided by the invention, a temperature-reducing cavity is formed between the second pressure-reducing outlet and the steam outlet, the temperature-reducing cavity is wrapped on the steam channel, the water spraying mechanism is arranged in the temperature-reducing cavity, and the heat-radiating rib plates protrude out of the steam channel and extend into the temperature-reducing cavity.
According to the steam pressure-reducing and temperature-reducing device provided by the invention, the space in the shell can be more efficiently utilized by arranging the first pressure-reducing channel and the second pressure-reducing channel, so that the whole device is more compact, and the first pressure-reducing channel and the second pressure-reducing channel are gradually expanded in the flow direction of steam, so that the flow field of the steam is more uniform in the pressure-reducing process, and the generation of noise is favorably controlled.
Drawings
In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings needed for the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a steam pressure-reducing and temperature-reducing device provided by the invention;
FIG. 2 is a schematic sectional view taken along line A-A of FIG. 1;
FIG. 3 is a schematic cross-sectional view taken along line B-B of FIG. 1;
FIG. 4 is a schematic top view of the water spray mechanism of FIG. 1;
reference numerals:
1: a steam pressure-reducing and temperature-reducing device; 2: a housing; 3: a first pressure reducing channel; 4: a second pressure reducing channel; 5: a water spraying mechanism; 6: a pressure reducing orifice plate; 7: a mounting cavity; 8: a steam inlet; 9: a steam outlet; 10: a wire mesh; 11: sound insulating foam; 12: a steam channel; 13: a heat dissipation rib plate; 14: a cooling chamber; 15: a first pressure reducing inlet; 16: a first pressure reduction outlet; 17: a second pressure reducing inlet; 18: a second pressure reducing outlet; 19: a water jet; 20: a first pressure reducing orifice plate; 21: a second pressure reducing orifice plate.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the embodiments of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the embodiments of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. Specific meanings of the above terms in the embodiments of the present invention can be understood in specific cases by those of ordinary skill in the art.
In embodiments of the invention, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "above," and "over" a second feature may be directly on or obliquely above the second feature, or simply mean 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 description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., 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 an embodiment of the invention. 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.
The steam pressure-reducing and temperature-reducing device 1 of the invention is described below with reference to fig. 1 to 4.
The temperature and pressure reducing device is limited by the structure, the pressure reducing level is less, the primary pressure reducing ratio is larger, and the flow rate is higher and difficult to control in the steam pressure reducing process, so that the problem that the noise caused by the flow is obvious in the operation process of the temperature and pressure reducing device is caused, and the adverse effect is caused to the surrounding environment and personnel. In view of this, the present invention provides a steam pressure-reducing and temperature-reducing device 1, which comprises: the steam-cooling steam-heating device comprises a shell 2, wherein a mounting cavity 7 is formed in the shell 2, a steam inlet 8 and a steam outlet 9 are formed in the shell 2, and steam enters the mounting cavity 7 from the steam inlet 8 for pressure reduction and temperature reduction and flows out from the steam outlet 9; the first pressure reducing channel 3 is arranged in the mounting cavity 7, the first pressure reducing channel 3 is provided with a first pressure reducing inlet 15 and a first pressure reducing outlet 16, the inner diameter of the first pressure reducing channel 3 is gradually increased from the first pressure reducing inlet 15 to the first pressure reducing outlet 16, the first pressure reducing inlet 15 is communicated with the steam inlet 8, and the steam in the first pressure reducing channel 3 can complete the first pressure reduction; the second pressure reducing channel 4 is arranged in the mounting cavity 7, the second pressure reducing channel 4 is provided with a second pressure reducing inlet 17 and a second pressure reducing outlet 18, the inner diameter of the second pressure reducing channel 4 is gradually increased from the second pressure reducing inlet 17 to the second pressure reducing outlet 18, the second pressure reducing inlet 17 is communicated with the first pressure reducing outlet 16, and the second pressure reducing outlet 18 is communicated with the steam outlet 9; the steam flows out from the first pressure reducing outlet 16 and then enters the second pressure reducing channel 4, and the steam finishes the second pressure reduction in the second pressure reducing channel 4 and then flows out from the steam outlet 9; further, still be equipped with water spray mechanism 5 in the installation cavity 7, water spray mechanism 5 locates between second step-down export 18 and steam outlet 9, has seted up a plurality of water jets 19 on the water spray mechanism 5 for water spray cooling steam, the operation of cooling down is carried out steam.
According to the steam pressure-reducing and temperature-reducing device 1 provided by the invention, the first pressure-reducing channel 3 and the second pressure-reducing channel 4 are arranged, so that the space in the shell 2 can be more efficiently utilized, the whole device is more compact, and the first pressure-reducing channel 3 and the second pressure-reducing channel 4 are gradually expanded in the flow direction of steam, so that the flow field of the steam is more uniform in the pressure-reducing process, and the generation of noise is favorably controlled.
Specifically, in order to further improve the utilization efficiency of the space and the pressure reduction efficiency of the apparatus, the second pressure reduction passage 4 includes a plurality of second pressure reduction passages 4, and the plurality of second pressure reduction passages 4 are circumferentially arranged around the first pressure reduction passage 3. It should be noted that, in this embodiment, the first pressure-reducing channel 3 is provided as one, the second pressure-reducing channel 4 is provided as a plurality of channels, and the channels are annularly provided around the first pressure-reducing channel 3, and both the first pressure-reducing channel 3 and the second pressure-reducing channel 4 extend along the length direction of the housing 2, so that the utilization efficiency of the space can be further improved. It should be noted that the number of the first pressure-reducing channels 3 may also be multiple, and the cross-sectional shapes of the first pressure-reducing channels 3 and the second pressure-reducing channels 4 may also be circular, square, or triangular, etc., which is not limited in the present invention.
As described above, the first pressure-reducing channel 3 and the second pressure-reducing channel 4 are both used for reducing pressure of steam, in the technical scheme provided by the invention, a plurality of pressure-reducing pore plates 6 are arranged in the first pressure-reducing channel 3 and the second pressure-reducing channel 4, and the pressure-reducing pore plates 6 are sequentially arranged at intervals along the axial direction of the first pressure-reducing channel 3 or the second pressure-reducing channel 4, so that the pressure of steam can be reduced in the process of passing through the pressure-reducing pore plates 6. It should be noted that the pressure-reducing pore plates 6 may be the same or different, and in order to prevent the steam from generating a resonance phenomenon when passing through the pressure-reducing pore plates 6, in the technical scheme provided by the present invention, the pressure-reducing pore plates 6 include a first pressure-reducing pore plate 20 and a second pressure-reducing pore plate 21, and the first pressure-reducing pore plate 20 and the second pressure-reducing pore plate 21 are alternately arranged in the first pressure-reducing channel 3 or the second pressure-reducing channel 4; the first pressure reduction hole plate 20 is provided with a first pressure reduction hole, the second pressure reduction hole plate 21 is provided with a second pressure reduction hole, and the first pressure reduction hole and the second pressure reduction hole are different in shape. Therefore, the pressure reduction pore plates 6 in different forms are arranged in a staggered mode, so that the flow-induced noise frequency when steam flows through the pore plates can be different, and the resonance risk is eliminated. Specifically, in this embodiment, the first pressure-reducing hole is a circular hole, and the second pressure-reducing hole is a narrow slit type, but in practical applications, a plurality of different pressure-reducing hole plate combinations may be selected according to the requirements of the working conditions, which is not limited in the present invention.
Further, be formed with the step-down clearance between first step-down orifice plate 20 and the second step-down orifice plate 21, the step-down clearance increases gradually from first step-down import 15 to first step-down export 16 and sets up, increases between second step-down import 17 to second step-down export 18 and sets up, so can realize bigger steam flow space step by step for match the volume expansion after the steam decompression.
Furthermore, a wire mesh 10 is disposed between the first pressure-reducing outlet 16 and the second pressure-reducing inlet 17, and the steam enters the second pressure-reducing inlet 17 through the wire mesh 10. Referring to fig. 1, a steam inlet 8 and a steam outlet 9 are both distributed at one end of a housing 2, a wire mesh 10 is disposed at the other end of the housing 2, and steam flows out from a first pressure reduction outlet and then enters a second pressure reduction inlet through the wire mesh 10, and the wire mesh 10 with a porous structure can isolate flow-induced noise generated by an upstream channel and a downstream channel to a certain extent, which is beneficial to the overall low-noise design of the device; in addition, the peripheries of the first pressure reduction channel 3 and the second pressure reduction channel 4 are wrapped with sound insulation foam 11, so that vibration noise generated by high-speed steam can be isolated, and the whole noise of the device is small.
Specifically, be equipped with steam channel 12 between steam inlet 8 and first step-down import 15, be equipped with a plurality of heat dissipation floor 13 in the steam channel 12, high-temperature steam can carry out primary cooling through heat dissipation floor 13 when getting into first step-down import 15 through steam channel 12, so the mode of accessible precooling carries out the decompression cooling to steam, avoids the too big problem of primary step-down ratio. In addition, be formed with cooling cavity 14 between second step-down export 18 and the steam outlet 9, cooling cavity 14 parcel steam channel 12 sets up, in water spray mechanism 5 located cooling cavity 14, the steam in to steam channel 12 on the one hand carries out preliminary cooling, on the other hand from the outflow of second step-down export 18 steam after the decompression can be at cooling cavity 14 and cooling water intensive mixing, become low temperature low pressure steam, the completion is to the cooling decompression of steam. In the present embodiment, the water spray mechanism 5 is a water spray coil. In addition, in the technical scheme provided by the invention, the heat dissipation rib plate 13 protrudes out of the steam channel 12 and extends into the cooling chamber 14, so that the heat dissipation rib plate 13 has a cooling effect on steam in both the steam channel 12 and the cooling chamber 14.
According to the steam pressure-reducing and temperature-reducing device 1 provided by the invention, the pressure-reducing channel is constructed by adopting the expansion flow channel, and the pressure-reducing pore plates 6 which are arranged in different structural forms in a staggered manner are arranged in the channel, so that the pressure-reducing and temperature-reducing device is compact as a whole; by arranging the wire net 10 and the soundproof foam 11, a noise reduction function can be provided; in addition, the steam channel 12 penetrates through a water spraying temperature reduction area, and heat dissipation rib plates 13 and other enhanced heat transfer measures are arranged around the channel, so that the steam can be subjected to pressure reduction and temperature reduction in a pre-cooling mode, and the problem of overlarge primary pressure reduction ratio is avoided.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A steam pressure reduction and temperature reduction device is characterized by comprising:
the steam-water separator comprises a shell, a water inlet, a water outlet and a steam outlet, wherein an installation cavity is formed in the shell;
the first pressure reducing channel is arranged in the mounting cavity and provided with a first pressure reducing inlet and a first pressure reducing outlet, the inner diameter of the first pressure reducing channel is gradually increased from the first pressure reducing inlet to the first pressure reducing outlet, and the first pressure reducing inlet is communicated with the steam inlet;
the second pressure reducing channel is arranged in the mounting cavity and provided with a second pressure reducing inlet and a second pressure reducing outlet, the inner diameter of the second pressure reducing channel is gradually increased from the second pressure reducing inlet to the second pressure reducing outlet, the second pressure reducing inlet is communicated with the first pressure reducing outlet, and the second pressure reducing outlet is communicated with the steam outlet; and the number of the first and second groups,
and the water spraying mechanism is arranged between the second depressurization outlet and the steam outlet, and is provided with a plurality of water spraying nozzles for spraying water and cooling the steam.
2. The steam pressure-reducing and temperature-reducing device according to claim 1, wherein the second pressure-reducing passage comprises a plurality of second pressure-reducing passages, and the plurality of second pressure-reducing passages are arranged around the circumference of the first pressure-reducing passage.
3. The steam pressure-reducing and temperature-reducing device according to claim 2, wherein a plurality of pressure-reducing pore plates are respectively arranged in the first pressure-reducing channel and the second pressure-reducing channel, and the pressure-reducing pore plates are sequentially arranged at intervals along the axial direction of the first pressure-reducing channel or the second pressure-reducing channel.
4. The steam pressure-reducing and temperature-reducing device according to claim 3, wherein the pressure-reducing orifice plate comprises a first pressure-reducing orifice plate and a second pressure-reducing orifice plate, and the first pressure-reducing orifice plate and the second pressure-reducing orifice plate are alternately arranged in the first pressure-reducing channel or the second pressure-reducing channel;
the first pressure reduction pore plate is provided with a first pressure reduction pore, the second pressure reduction pore plate is provided with a second pressure reduction pore, and the first pressure reduction pore and the second pressure reduction pore are different in shape.
5. The steam pressure reduction and temperature reduction device according to claim 4, wherein a pressure reduction gap is formed between the first pressure reduction pore plate and the second pressure reduction pore plate, the pressure reduction gap is gradually increased from the first pressure reduction inlet to the first pressure reduction outlet, and is increased from the second pressure reduction inlet to the second pressure reduction outlet.
6. The steam pressure-reducing and temperature-reducing device according to claim 4, wherein the first pressure-reducing holes are provided as circular holes, and the second pressure-reducing holes are provided as narrow slits.
7. The steam pressure-reducing and temperature-reducing device according to claim 2, wherein a wire mesh is disposed between the first pressure-reducing outlet and the second pressure-reducing inlet, and steam enters the second pressure-reducing inlet through the wire mesh.
8. The steam pressure-reducing and temperature-reducing device as claimed in claim 2, wherein the peripheries of the first pressure-reducing channel and the second pressure-reducing channel are wrapped with sound-insulating foam.
9. The steam pressure-reducing and temperature-reducing device according to claim 2, wherein a steam channel is provided between the steam inlet and the first pressure-reducing inlet, and a plurality of heat-dissipating ribs are provided in the steam channel.
10. The steam pressure-reducing and temperature-reducing device according to claim 9, wherein a temperature-reducing chamber is formed between the second pressure-reducing outlet and the steam outlet, the temperature-reducing chamber wraps the steam passage, the water spraying mechanism is arranged in the temperature-reducing chamber, and the heat-dissipating ribs protrude out of the steam passage and extend into the temperature-reducing chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210614296.0A CN114992419B (en) | 2022-05-31 | 2022-05-31 | Steam pressure-reducing and temperature-reducing device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210614296.0A CN114992419B (en) | 2022-05-31 | 2022-05-31 | Steam pressure-reducing and temperature-reducing device |
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| CN114992419A true CN114992419A (en) | 2022-09-02 |
| CN114992419B CN114992419B (en) | 2023-09-05 |
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Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| US20060008397A1 (en) * | 2003-01-14 | 2006-01-12 | Emitec Gesellschaft Fur Emisionstechnologie Mbh | Space-saving exhaust-gas aftertreatment unit with inflow and return-flow regions lying one inside the other and gas inlet and outlet on the same side |
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| CN203067061U (en) * | 2013-02-01 | 2013-07-17 | 浙江工贸职业技术学院 | Gasoline engine exhaust silencer |
| CN103263982A (en) * | 2013-04-19 | 2013-08-28 | 洛阳中懋环保设备有限公司 | Nozzle structure of temperature and pressure reducing and capacity increasing device with variable sound speed |
| CN207648769U (en) * | 2017-11-29 | 2018-07-24 | 马鞍山钢铁股份有限公司 | A kind of Desuperheating and decompressing device for steam |
| CN209229217U (en) * | 2018-12-19 | 2019-08-09 | 开封开创测控技术有限公司 | A kind of multilevel decompression device |
| CN214468547U (en) * | 2021-03-22 | 2021-10-22 | 河南智信锅炉技术创新有限公司 | Steam silencer |
| CN114233901A (en) * | 2021-11-29 | 2022-03-25 | 中国船舶重工集团公司第七一一研究所 | Large-pressure-difference low-decompression-ratio steam noise-reduction decompression device |
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2022
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB261514A (en) * | 1925-09-28 | 1926-11-25 | Harry Fothergill | Apparatus for desuperheating steam |
| EP0481573A1 (en) * | 1990-10-17 | 1992-04-22 | Horst Jäkel | Device for pressure reduction of a gaseous medium |
| DE19932778A1 (en) * | 1999-07-14 | 2001-01-18 | Volkswagen Ag | Apparatus for catalytic purification of exhaust gases from internal combustion engines has housing with exhaust gas inlet and outlet pipes, within which catalyst is arranged in opposing direction to the exhaust gas and the middle sections |
| CN1368594A (en) * | 2001-01-28 | 2002-09-11 | 王冲 | Method and apparatus for reducing pressure of high-pressure fluid and attenuating pulse energy of fluid in channel |
| US20060008397A1 (en) * | 2003-01-14 | 2006-01-12 | Emitec Gesellschaft Fur Emisionstechnologie Mbh | Space-saving exhaust-gas aftertreatment unit with inflow and return-flow regions lying one inside the other and gas inlet and outlet on the same side |
| CN101144617A (en) * | 2007-10-15 | 2008-03-19 | 洛阳蓝海实业有限公司 | Sonic velocity temperature-reducing decompressing volume-increasing device |
| CN203067061U (en) * | 2013-02-01 | 2013-07-17 | 浙江工贸职业技术学院 | Gasoline engine exhaust silencer |
| CN103263982A (en) * | 2013-04-19 | 2013-08-28 | 洛阳中懋环保设备有限公司 | Nozzle structure of temperature and pressure reducing and capacity increasing device with variable sound speed |
| CN207648769U (en) * | 2017-11-29 | 2018-07-24 | 马鞍山钢铁股份有限公司 | A kind of Desuperheating and decompressing device for steam |
| CN209229217U (en) * | 2018-12-19 | 2019-08-09 | 开封开创测控技术有限公司 | A kind of multilevel decompression device |
| CN214468547U (en) * | 2021-03-22 | 2021-10-22 | 河南智信锅炉技术创新有限公司 | Steam silencer |
| CN114233901A (en) * | 2021-11-29 | 2022-03-25 | 中国船舶重工集团公司第七一一研究所 | Large-pressure-difference low-decompression-ratio steam noise-reduction decompression device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114992419B (en) | 2023-09-05 |
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