CN117329143A - Main helium fan - Google Patents
Main helium fan Download PDFInfo
- Publication number
- CN117329143A CN117329143A CN202311403095.7A CN202311403095A CN117329143A CN 117329143 A CN117329143 A CN 117329143A CN 202311403095 A CN202311403095 A CN 202311403095A CN 117329143 A CN117329143 A CN 117329143A
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- Prior art keywords
- cooling
- main
- helium fan
- air
- fan motor
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- 239000001307 helium Substances 0.000 title claims abstract description 123
- 229910052734 helium Inorganic materials 0.000 title claims abstract description 123
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 title claims abstract description 123
- 238000001816 cooling Methods 0.000 claims abstract description 92
- 239000000428 dust Substances 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 9
- 238000005057 refrigeration Methods 0.000 claims description 8
- 238000004891 communication Methods 0.000 claims description 7
- 238000001514 detection method Methods 0.000 claims description 7
- 230000001105 regulatory effect Effects 0.000 claims description 7
- 238000012544 monitoring process Methods 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 239000003463 adsorbent Substances 0.000 claims 2
- 239000007789 gas Substances 0.000 description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 19
- 238000001179 sorption measurement Methods 0.000 description 9
- 230000017525 heat dissipation Effects 0.000 description 7
- 239000000498 cooling water Substances 0.000 description 6
- 230000002285 radioactive effect Effects 0.000 description 4
- 239000011358 absorbing material Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 239000002826 coolant Substances 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 240000007651 Rubus glaucus Species 0.000 description 1
- 235000011034 Rubus glaucus Nutrition 0.000 description 1
- 235000009122 Rubus idaeus Nutrition 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000007791 dehumidification Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000004992 fission Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/58—Cooling; Heating; Diminishing heat transfer
- F04D29/5806—Cooling the drive system
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/58—Cooling; Heating; Diminishing heat transfer
- F04D29/582—Cooling; Heating; Diminishing heat transfer specially adapted for elastic fluid pumps
- F04D29/5826—Cooling at least part of the working fluid in a heat exchanger
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/58—Cooling; Heating; Diminishing heat transfer
- F04D29/582—Cooling; Heating; Diminishing heat transfer specially adapted for elastic fluid pumps
- F04D29/5846—Cooling; Heating; Diminishing heat transfer specially adapted for elastic fluid pumps cooling by injection
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
- F04D29/701—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
- F04D29/701—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps
- F04D29/706—Humidity separation
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
The invention discloses a main helium fan, which comprises a main helium fan motor body and a cooling assembly, wherein the main helium fan motor body comprises a main shaft, and the main helium fan motor body is provided with an air inlet and an air outlet; the cooling assembly comprises a guide piece, an impeller structure and a cooling piece, wherein an air channel structure is arranged in the guide piece, one end of the air channel structure is communicated with the air inlet, and the other end of the air channel structure is suitable for being communicated with the outside; the impeller structure is arranged on the main shaft, and is positioned in the air duct structure, and the cooling piece is arranged in the air duct structure; the main helium fan motor body can drive the impeller structure to rotate so as to drive a medium in the air duct structure to be cooled by the cooling piece and then sent into the air inlet. When the main helium fan works, the main helium fan motor body drives the impeller structure to rotate, the impeller structure drives air flow in the air duct structure to pass through the cooling piece and be cooled and then sent into the air inlet, the cooled air flow flows to each air duct in the main helium fan motor body through the air inlet, and heat in the motor is brought out through the air outlet.
Description
Technical Field
The invention relates to the technical field of high-temperature gas cooled reactor nuclear power engineering, in particular to a main helium blower.
Background
The high temperature gas cooled reactor adopts helium with good chemical inertia and thermal performance as a coolant, adopts a spherical fuel element with excellent radioactive fission product binding performance and fully ceramic-coated fuel particles dispersed in a graphite matrix, adopts high temperature resistant graphite as a moderator and a reactor core structural material, and is an advanced nuclear reactor with good intrinsic safety, high power generation efficiency and extremely wide application. The high-temperature gas cooled reactor nuclear power station drives helium coolant in a loop to circularly flow through a main helium blower. The main helium fan is a vertical centrifugal compressor, a motor is coaxial with the impeller and is arranged above the inside of the pressure vessel of the steam generator, the general structure of the main helium fan comprises a fan cavity and a motor cavity, and mechanical components such as the impeller, a diffuser and the like are arranged in the fan cavity and are in direct contact with helium gas at 250 ℃; the electric components such as a motor and the like are mainly arranged in the motor cavity, and the temperature in the cavity is not more than 60 ℃ at the maximum.
The existing main helium fan motor is internally provided with a ventilation structure and a fan, the ventilation structure comprises an air duct a, an air duct b and an outer air duct, the air duct a and the air duct b are communicated with the outer air duct, the outer air duct is communicated with the outside, air is supplied to the air duct a and the air duct b through the fan to form air flow, the air flow passes through all devices in the main helium fan motor and takes away heat, and the heat is taken out through the outer air duct.
However, in the above-mentioned main helium fan motor, because the space in the main helium fan motor is limited, so the number of air ducts in the main helium fan is limited, and the main helium fan motor needs to work continuously, and a large amount of heat can be generated during the work, and the limited air ducts are difficult to discharge the heat in time, thereby causing heat accumulation in the motor and damage to the motor.
Disclosure of Invention
Therefore, the technical problem to be solved by the invention is that in the prior art, the main helium fan motor has limited space, so that the number of air channels in the main helium fan motor is limited, the main helium fan motor needs to continuously work, a large amount of heat is generated during the work, and the limited air channels are difficult to timely discharge the heat, so that the heat is accumulated in the motor, and the motor is damaged.
To this end, the invention provides a primary helium blower comprising:
the main helium fan motor body comprises a main shaft, and the main helium fan motor body is provided with an air inlet and an air outlet;
the cooling assembly comprises a guide piece, an impeller structure and a cooling piece, wherein an air channel structure is arranged in the guide piece, one end of the air channel structure is communicated with the air inlet, and the other end of the air channel structure is suitable for being communicated with the outside; the impeller structure is arranged on the main shaft and is positioned in the air duct structure; the cooling piece is arranged in the air duct structure;
the main helium fan motor body can drive the impeller structure to rotate so as to drive a medium in the air duct structure to flow through the cooling piece, exchange heat with the cooling piece and send the cooled medium into the air inlet.
Optionally, the main helium fan further comprises a shell, wherein the main helium fan motor body, the impeller structure, the flow guiding piece and the cooling piece are arranged in the shell.
Optionally, the main helium fan further comprises a humidity detecting element, wherein the humidity detecting element is arranged on the shell and is used for monitoring the humidity in the shell.
Optionally, the main helium fan further comprises a fan impeller, wherein the fan impeller is fixedly connected with one end of the main shaft extending out of the shell, and the fan impeller is suitable for being arranged in a steam generator loop.
Optionally, the cooling assembly further includes a refrigeration device, a cooling pipeline and a return pipeline, the cooling element is a heat exchanger, an outlet of the refrigeration device is communicated with an inlet of the heat exchanger through the cooling pipeline, and an inlet of the refrigeration device is communicated with an outlet of the heat exchanger through the return pipeline.
Optionally, the main helium fan, the cooling assembly further includes:
the first flow regulating device is arranged on the cooling pipeline;
the flow detection piece is arranged on the cooling pipeline and is used for measuring the flow on the cooling pipeline.
Optionally, the main helium fan, the cooling assembly further includes:
a second flow regulating device, which is arranged on the return pipeline;
and the pressure detection part is arranged on the return pipeline and is used for measuring the pressure in the return pipeline.
Optionally, the above main helium fan, the cooling assembly further includes a control member, and the control member is electrically connected to the first flow adjusting device, the second flow adjusting device, the flow detecting member, and the pressure detecting member, respectively.
Optionally, the above main helium fan further comprises a dehumidifying device, wherein the dehumidifying device comprises a first body, the first body is arranged in the air duct structure, a moisture absorbing material is arranged in the first body, and a medium in the air duct structure can penetrate through the moisture absorbing material.
Optionally, the above main helium fan further comprises a dust adsorption device, the dust adsorption device comprises a second body, the second body is arranged in the air duct structure, and an adsorption material is arranged in the second body, and the medium in the air duct structure can penetrate through the adsorption material.
The technical scheme provided by the invention has the following advantages:
1. the main helium fan comprises a main helium fan motor body and a cooling assembly, wherein the main helium fan motor body comprises a main shaft, and the main helium fan motor body is provided with an air inlet and an air outlet; the cooling assembly comprises a guide piece, an impeller structure and a cooling piece, wherein an air channel structure is arranged in the guide piece, one end of the air channel structure is communicated with the air inlet, and the other end of the air channel structure is suitable for being communicated with the outside; the impeller structure is arranged on the main shaft, the impeller structure is positioned in the air duct structure, and the cooling piece is arranged in the air duct structure; the main helium fan motor body can drive the impeller structure to rotate so as to drive a medium in the air duct structure to flow through the cooling piece, exchange heat with the cooling piece and send the cooled medium into the air inlet. When the main helium fan works, the main helium fan motor body drives the main shaft to rotate, the main shaft drives the impeller structure to rotate, the impeller structure drives the gas in the air channel structure to flow through the cooling piece, the cooling piece and the part of gas are in thermal convection, the temperature of the part of gas is reduced, the temperature-reduced gas flows to each air channel in the main helium fan motor body through the air inlet, and the heat of each device in the motor is brought out through the air outlet, so that the cooling effect of the main helium fan motor body is improved.
2. According to the main helium fan provided by the invention, the main helium fan motor body, the impeller structure, the flow guide piece and the cooling piece are arranged in the shell, the shell is used for protecting the main helium fan motor body, the impeller structure, the flow guide piece and the cooling piece, and the shell isolates the main helium fan motor body from the outside, so that dust and water vapor are reduced from entering the main helium fan motor body.
3. According to the main helium fan provided by the invention, the dust adsorption device is arranged in the air duct structure, so that most of radioactive dust can be adsorbed, and the irradiation dose of maintenance personnel for maintaining the main helium fan motor body is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the principle of operation of a primary helium blower provided by the present invention.
Reference numerals illustrate:
1. a main helium blower motor body; 11. a main shaft;
21. a flow guide; 22. an impeller structure; 23. a cooling member; 24. a refrigerating device; 25. a first flow rate adjustment device; 26. a flow rate detecting member; 27. a second flow rate adjustment device; 28. a pressure detecting member; 29. a control member;
3. a housing;
4. a humidity detecting member;
5. a fan impeller;
6. a dehumidifying device;
7. a dust adsorption device;
8. a steam generator;
p1, a cooling pipeline; p2, a return pipeline.
Detailed Description
The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting 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 present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In addition, the technical features of the different embodiments of the present invention described below may be combined with each other as long as they do not collide with each other.
Example 1
The embodiment provides a main helium fan, as shown in fig. 1, which comprises a main helium fan motor body 1 and a cooling assembly, wherein the main helium fan motor body 1 comprises a main shaft 11, and the main helium fan motor body 1 is provided with an air inlet and an air outlet; the cooling assembly comprises a guide piece 21, an impeller structure 22 and a cooling piece 23, wherein an air channel structure is arranged in the guide piece 21, one end of the air channel structure is communicated with the air inlet, and the other end of the air channel structure is suitable for being communicated with the outside; the impeller structure 22 is arranged on the main shaft 11, the impeller structure 22 is positioned in the air duct structure, and the cooling piece 23 is arranged in the air duct structure; the main helium fan motor body 1 can drive the impeller structure 22 to rotate so as to drive a medium in the air duct structure to flow through the cooling piece 23, exchange heat with the cooling piece 23, cool down and send into the air inlet.
According to the main helium fan provided by the embodiment, when the main helium fan works, the main helium fan motor body 1 drives the main shaft 11 to rotate, the main shaft 11 drives the impeller structure 22 to rotate, the impeller structure 22 drives the gas in the air duct structure to flow through the cooling piece 23, the cooling piece 23 and the part of gas are subjected to heat convection, so that the temperature of the part of gas is reduced, the reduced temperature gas flows to each air duct in the main helium fan motor body 1 through the air inlet, and the heat of each device in the main helium fan motor body 1 is taken out through the air outlet, so that the cooling effect of the main helium fan motor body 1 is improved.
As shown in fig. 1, the main helium fan provided in this embodiment further includes a housing 3, the housing 3 is made of a pressure-resistant material, the housing 3 is used for isolating the main helium fan motor body 1 from an external environment, and the housing 3 plays a role in protecting the main helium fan motor body 1. The main helium fan motor body 1 can be installed on the inner wall of the shell 3 through a bracket, the main helium fan motor body 1 can be fixedly connected with the inner wall of the shell 3 through bolts or other common fixed connection modes, taking fig. 1 as an example, in the embodiment, the air outlet is formed in the top of the main helium fan motor body 1, the air inlet is formed in the bottom of the main helium fan motor body 1, as an alternative embodiment, the positions of the air inlet and the air outlet can be adjusted as required by a person in the field, the air inlet can be formed in the side wall of the main helium fan motor body 1, and the air outlet is formed in the other side wall opposite to the air inlet. The guide piece 21 may be square barrel-shaped or other common hollow shapes, in this embodiment, the guide piece 21 is cylindrical, the top of the guide piece 21 is fixedly connected with the bottom of the main helium fan motor body 1, the fixing manner may be clamping connection, welding, fixing connection through a bracket or other common fixing connection manners, in this embodiment, the top of the guide piece 21 is provided with a flange plate, the flange plate is fixedly connected with the bottom of the main helium fan motor body 1 through a bolt, and the hollow structure in the guide piece 21 is an air duct structure. The main helium fan motor body 1 is internally provided with a heat dissipation air channel, two ends of the heat dissipation air channel are respectively communicated with the air inlet and the air outlet, a fan is arranged at the position, close to the air outlet, of the heat dissipation air channel, the fan is used for conveying air flow in the heat dissipation air channel into the shell 3 through the air outlet, one end, far away from the main helium fan motor body 1, of the main shaft 11 sequentially penetrates through the air channel structure and the shell 3 and stretches out of the shell 3, the impeller structure 22 is sleeved on the periphery of part of the main shaft 11 in the air channel structure, the impeller structure 22 is positioned at the position, close to the inlet of the air channel structure, of the main helium fan motor body 1 drives the impeller structure 22 to rotate through the main shaft 11, the impeller structure 22 sucks air in the shell 3 and conveys the air channel structure, and the air is continuously sucked in through the impeller structure 22, so that the air in the air channel structure sequentially penetrates through the cooling piece 23 and the air inlet and then is conveyed into the heat dissipation air channel in the helium injection fan motor body, and the air penetrating through the cooling piece 23 is cooled by the cooling piece 23, and has lower temperature, so that the temperature of the air injected into the heat dissipation air channel in the main helium fan motor body 1 can be quickly reduced.
As shown in fig. 1, the main helium fan provided in this embodiment further includes a humidity detecting element 4, the humidity detecting element 4 is a humidity detector, the humidity detector includes a humidity display instrument with a detecting end connected with the humidity detecting element, the detecting end is inserted into the housing 3, the humidity display instrument is fixedly connected with an outer side wall of the housing 3, the number of the humidity detecting elements 4 is not limited in this embodiment, two humidity detecting elements 4 are adopted in this embodiment, two humidity detecting elements 4 are respectively arranged on two sides of the top of the housing 3, and the humidity detecting elements 4 are used for monitoring humidity in the housing 3.
As shown in fig. 1, the main helium blower provided in this embodiment further includes a blower impeller 5, where the blower impeller 5 is fixedly connected to an end of a main shaft 11 extending out of the housing 3, and the fixing manner is a bolt connection, a welding or other common fixing manner, and in this embodiment, spline connection is adopted to match with bolt connection. A fan wheel 5 is located in the steam generator 8 circuit for driving the helium gas to circulate.
As shown in fig. 1, the cooling assembly further includes a refrigeration device 24, a cooling pipeline P1 and a return pipeline P2, where the refrigeration device 24 may be a cooling tower, a water chiller or other common cooling devices, the cooling water chiller is disposed outside the housing, one end of the cooling pipeline P1 is communicated with the outlet of the water chiller, the other end of the cooling pipeline P1 extends into the housing 3 and is communicated with the inlet of the cooling element 23, one end of the return pipeline P2 is communicated with the inlet of the water chiller, the other end of the return pipeline P2 extends into the housing 3 and is communicated with the outlet of the cooling element 23, the cooling element 23 is a spiral pipe heat exchanger, and as an alternative embodiment, the cooling element 23 may be a plate heat exchanger or other common heat exchanger, the cooling element 23 is disposed in an air duct structure, and the cooling water generated by the water chiller returns to the water chiller after passing through the cooling pipeline P1, the cooling element 23 and the return pipeline P2 in sequence, so as to form a cooling water circulation. The cooling device is used for reducing the temperature of the air in the air duct structure, namely, is used for providing cooling capacity.
As shown in fig. 1, the main helium fan provided in this embodiment of the present invention further includes a first flow regulator 25 and a flow detector 26, where the first flow regulator 25 is a water supply solenoid valve, the water supply solenoid valve is disposed on the cooling pipeline P1, the water supply solenoid valve is used to regulate the flow of cooling water in the cooling pipeline P1, and the water supply solenoid valve is located outside the housing 3, so that it is convenient for a worker to operate the water supply solenoid valve; the flow detecting element 26 is an electromagnetic flowmeter, and as an alternative embodiment, the flow detecting element 26 may also be a vortex flowmeter or other common flowmeters, and the electromagnetic flowmeter is installed on the cooling pipeline P1 and is used for measuring the flow of cooling water on the cooling pipeline P1, and the electromagnetic flowmeter is located outside the housing 3, so that the operator can check the flow of the cooling pipeline P1 conveniently.
As shown in fig. 1, the cooling assembly of the main helium fan provided in this embodiment further includes a second flow regulator 27 and a pressure detector 28, the second flow regulator 27 is a return water electromagnetic valve, the return water electromagnetic valve is disposed on the return pipeline P2, the return water electromagnetic valve is used for regulating the flow of cooling water in the return pipeline P2, and the return water electromagnetic valve is disposed outside the housing 3, so that it is convenient for a worker to operate the return water electromagnetic valve; the pressure detecting member 28 is a pressure sensor provided in the return line P2 for detecting the pressure in the return line P2.
As shown in fig. 1, the cooling assembly further includes a control member 29, and the control member 29 may be a single chip microcomputer, a raspberry group or other common control system, and the first flow adjusting device 25, the second flow adjusting device 27, the electromagnetic flowmeter and the pressure detecting member 28 are respectively connected with the control member 29 through communication interface assemblies or control cables, and the communication interface assemblies support various communication protocols, including, but not limited to, modbus, PROFIBUS, OPC and the like.
As shown in fig. 1, the main helium fan provided in this embodiment further includes a dehumidifying device 6, where the dehumidifying device 6 includes a first body, the first body may be in a shape of a cake, the first body may also be in a cube or other common shapes, an outer side wall of the first body is fixedly connected with an inner wall of the air duct structure, a moisture absorbing material is disposed in the first body, and a first through hole is disposed on the first body, which is not limited in number by this embodiment, and is used for guiding airflow to pass through the dehumidifying device 6, and the dehumidifying device 6 is located between the cooling member and the air inlet, and the air at the downstream of the cooling member 23 is more beneficial to the dehumidifying device 6 for adsorption dehumidification due to the decrease of temperature and the increase of relative humidity, thereby improving dehumidifying efficiency.
As shown in fig. 1, the main helium blower provided in this embodiment further includes a dust adsorbing device 7, where the dust adsorbing device 7 includes a second body, the second body is also in a shape of a cake, an outer side wall of the second body is fixedly connected with an inner wall of the air duct structure, an adsorbing material is disposed in the second body, and second through holes are disposed on the second body, and the number of the second through holes is not limited in this embodiment, and the second through holes are used for guiding an air flow to pass through the dust adsorbing device 7, and the dust adsorbing device 7 is located between the impeller structure 22 and the cooling member 23 and is used for adsorbing radioactive particulate matters in the air.
As shown in fig. 1, in the main helium fan provided in this embodiment, the humidity detecting member 4 is connected to the control member 29 through the communication interface assembly or the control cable, when the humidity measured by the humidity detecting member 4 is abnormal, the control system sends an alarm to alert the operator that the humidity inside the main helium fan is abnormal or that the dehumidifying device 6 is saturated, and when the humidity measured by the humidity detecting member 4 is further increased, the control member 29 closes the first flow adjusting device 25 and the second flow adjusting device 27, and simultaneously stops the main helium fan motor body 1, thereby avoiding further damage of the main helium fan.
The main helium fan provided in this embodiment can find the abnormality of the main helium fan in real time through the real-time feedback of the pressure detecting piece 28, the humidity detecting piece 4 and the flow detecting piece 26, so as to ensure that the cold water shortage loop can be closed by the first flow adjusting device 25 and the second flow adjusting device 27 in a circulating way when the pipeline of the cooling piece 23 is broken, prevent excessive water from leaking into the shell 3, and protect the safety of electrical equipment.
The working process of the main helium fan provided by the embodiment is as follows:
the main helium fan motor body 1 starts, the fan impeller 5 is in a working state, helium in a steam generator loop is driven to circulate, meanwhile, the impeller structure 22 and the fan impeller 5 synchronously rotate, gas in the shell 3 enters the air channel structure after being driven by the impeller structure 22, then sequentially flows through the dust adsorption device 7, the cooling piece 23 and the dehumidifying device 6, the dust adsorption device 7 is used for adsorbing radioactive particles in the gas, the cooling piece 23 cools the flowing gas, the temperature is lowered to below 60 ℃, the dehumidifying device 6 is used for adsorbing water vapor in the gas, low-temperature dry gas is generated and flows into the heat dissipation air channel in the main helium fan motor body 1 through the air inlet, the windings, the iron cores and other components in the main helium fan motor body 1 are cooled, and the cooling effect is improved. The low-temperature drying air flow exchanges heat with all parts in the main helium fan motor body 1, flows into the shell 3 through the air outlet after being heated, and flows towards the inlet of the air duct structure, so that circulation is formed.
When the rotation speed of the main helium fan motor body 1 is increased, the power of the main helium fan motor body is correspondingly increased, and the corresponding heating value is also increased. At this time, the rotation speed of the leaf structure with synchronous rotation speed also rises, and the wind pressure and flow rate of the output airflow also increase. Similarly, the low-temperature drying gas flowing through the air duct of the main helium fan motor body 1 can be increased, more heat is taken away from the main helium fan motor body 1, and the temperature inside the main helium fan motor body 1 is ensured to be kept stable.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the invention.
Claims (10)
1. A primary helium blower, comprising:
the main helium fan motor comprises a main helium fan motor body (1), wherein the main helium fan motor body (1) comprises a main shaft (11), and the main helium fan motor body (1) is provided with an air inlet and an air outlet;
the cooling assembly comprises a guide piece (21), an impeller structure (22) and a cooling piece (23), wherein an air channel structure is arranged in the guide piece (21), one end of the air channel structure is communicated with the air inlet, and the other end of the air channel structure is suitable for being communicated with the outside; the impeller structure (22) is arranged on the main shaft (11), and the impeller structure (22) is positioned in the air duct structure; the cooling piece (23) is arranged in the air duct structure;
the main helium fan motor body (1) can drive the impeller structure (22) to rotate so as to drive a medium in the air duct structure to flow through the cooling piece (23), exchange heat with the cooling piece (23) and send the cooled medium into the air inlet.
2. The main helium fan according to claim 1, further comprising a housing (3), wherein the main helium fan motor body (1), the impeller structure (22), the flow guiding member (21) and the cooling member (23) are arranged in the housing (3).
3. A main helium fan according to claim 2, further comprising a humidity detection element (4), said humidity detection element (4) being arranged on said housing (3) for monitoring the humidity inside said housing (3).
4. A primary helium fan according to claim 3, further comprising a fan impeller (5), said fan impeller (5) being fixedly connected to one end of said main shaft (11) extending outside said housing (3), and said fan impeller (5) being adapted to be arranged in a steam generator (8) circuit.
5. A primary helium fan according to any one of claims 1-4, wherein the cooling assembly further comprises a refrigeration device (24), a cooling line (P1) and a return line (P2), the cooling element (23) being a heat exchanger, the refrigeration device (24) outlet being in communication with the heat exchanger inlet through the cooling line (P1), the refrigeration device (24) inlet being in communication with the heat exchanger outlet through the return line (P2).
6. The primary helium blower of claim 5, wherein the cooling assembly further comprises:
a first flow rate adjustment device (25), wherein the first flow rate adjustment device (25) is arranged on the cooling pipeline (P1);
and the flow detection piece (26) is arranged on the cooling pipeline (P1) and is used for measuring the flow rate on the cooling pipeline (P1).
7. The primary helium blower of claim 6, wherein the cooling assembly further comprises:
-a second flow regulating device (27), said second flow regulating device (27) being arranged on said return line (P2);
-a pressure detection member (28), said pressure detection member (28) being arranged on said return line (P2) for measuring the pressure in said return line (P2).
8. The main helium fan according to claim 7, wherein the cooling assembly further comprises a control member (29), the control member (29) being electrically connected to the first flow regulating device (25), the second flow regulating device (27), the flow detecting member (26) and the pressure detecting member (28), respectively.
9. The primary helium fan according to any one of claims 1, 2, 3, 6, 7, 8, further comprising a dehumidifying device (6), the dehumidifying device (6) comprising a first body, the first body being arranged within the tunnel structure, the first body being internally provided with a hygroscopic material, the medium within the tunnel structure being capable of penetrating the hygroscopic material.
10. The primary helium blower of claim 9, further comprising a dust adsorbing device (7), the dust adsorbing device (7) comprising a second body, the second body being disposed within the tunnel structure and having an adsorbent material disposed therein, the adsorbent material being penetrable by media within the tunnel structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311403095.7A CN117329143A (en) | 2023-10-26 | 2023-10-26 | Main helium fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311403095.7A CN117329143A (en) | 2023-10-26 | 2023-10-26 | Main helium fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117329143A true CN117329143A (en) | 2024-01-02 |
Family
ID=89275415
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311403095.7A Pending CN117329143A (en) | 2023-10-26 | 2023-10-26 | Main helium fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117329143A (en) |
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2023
- 2023-10-26 CN CN202311403095.7A patent/CN117329143A/en active Pending
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