CN109185164A - A kind of hermetically sealed liquid metal mechanical pump - Google Patents
A kind of hermetically sealed liquid metal mechanical pump Download PDFInfo
- Publication number
- CN109185164A CN109185164A CN201811203174.2A CN201811203174A CN109185164A CN 109185164 A CN109185164 A CN 109185164A CN 201811203174 A CN201811203174 A CN 201811203174A CN 109185164 A CN109185164 A CN 109185164A
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- Prior art keywords
- pump
- chamber
- liquid metal
- housing
- impeller
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- 229910001338 liquidmetal Inorganic materials 0.000 title claims abstract description 52
- 239000007788 liquid Substances 0.000 claims abstract description 46
- 238000005192 partition Methods 0.000 claims abstract description 14
- 230000006837 decompression Effects 0.000 claims abstract description 10
- 229910052751 metal Inorganic materials 0.000 claims description 15
- 239000002184 metal Substances 0.000 claims description 15
- 230000004888 barrier function Effects 0.000 claims description 10
- 238000001816 cooling Methods 0.000 claims description 7
- 239000000725 suspension Substances 0.000 claims description 4
- 125000004122 cyclic group Chemical group 0.000 claims description 3
- 239000000498 cooling water Substances 0.000 claims description 2
- 239000004744 fabric Substances 0.000 claims 1
- 230000001681 protective effect Effects 0.000 abstract description 10
- 229910001385 heavy metal Inorganic materials 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 37
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 239000000919 ceramic Substances 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 3
- 239000010931 gold Substances 0.000 description 3
- 229910052737 gold Inorganic materials 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 239000000523 sample Substances 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 229910052797 bismuth Inorganic materials 0.000 description 2
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 210000000476 body water Anatomy 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000007704 transition Effects 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
- F04D7/00—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts
- F04D7/02—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type
- F04D7/06—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type the fluids being hot or corrosive, e.g. liquid metals
- F04D7/065—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type the fluids being hot or corrosive, e.g. liquid metals for liquid metal
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D13/00—Pumping installations or systems
- F04D13/02—Units comprising pumps and their driving means
- F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
- F04D13/0606—Canned motor 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
- F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
-
- 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
- F04D29/04—Shafts or bearings, or assemblies thereof
-
- 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
- F04D29/18—Rotors
- F04D29/185—Rotors consisting of a plurality of wheels
-
- 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
- F04D29/18—Rotors
- F04D29/22—Rotors specially for centrifugal 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
本发明涉及一种全密封液态金属机械泵。本发明包括泵体、泵叶轮以及沿竖向布置且下端悬置的泵轴，所述泵叶轮固定在泵轴下端，所述泵叶轮背面设有固定在泵轴上且与泵叶轮螺旋方向相反、用于防止液态金属溢出泵体的减压螺旋泵轮；所述泵体外布置有套设在所述泵轴上的环状外套，所述外套与泵轴之间形成与所述泵体内部相通的腔室，所述外套内壁上安装有防止由泵体溢出并进入所述腔室内的液态金属形成浪涌的环状隔板，所述外套侧面设有向所述腔室内充气的增压口以及将所述腔室内气体排出的排放口。该泵不仅可以用于预抽真空净化液态金属回路，同时通过通入保护气体实现液态金属液面的控制，满足在液态重金属回路中不同工况场合的使用。
The invention relates to a fully sealed liquid metal mechanical pump. The invention includes a pump body, a pump impeller and a pump shaft arranged vertically and suspended at the lower end, the pump impeller is fixed on the lower end of the pump shaft, and the back of the pump impeller is fixed on the pump shaft and is opposite to the helical direction of the pump impeller , a decompression screw pump wheel used to prevent liquid metal from overflowing the pump body; the outer body of the pump is arranged with a ring-shaped outer casing sleeved on the pump shaft, and the outer casing and the pump shaft are formed with the inside of the pump body. Connecting chambers, the inner wall of the outer casing is provided with a ring-shaped partition to prevent surges formed by the liquid metal overflowing from the pump body and entering the chamber, and the side of the outer casing is provided with a pressurized pressure to inflate the chamber. A port and a vent for exhausting the gas in the chamber. The pump can not only be used for pre-evacuating and purifying the liquid metal circuit, but also realizes the control of the liquid metal level by introducing protective gas, so as to meet the use of different working conditions in the liquid heavy metal circuit.
Description
Technical field
The invention belongs to pump housing fields, are specifically related to a kind of hermetically sealed liquid metal mechanical pump.
Background technique
Foundation stone of the electric power as the national economic development, facing sternness, there is lack of raw materials and problem of environmental pollution.In recent years, core
Electricity is favored with advantages such as safe and efficient, energy-saving and environmental protection by various countries.Recommend heap-type as the 4th generation of technology such as nuclear energy system, with liquid gold
Belong to (lead, lead bismuth) to quickly grow as the fast reactor of coolant.
The main pump that the diversified forms such as electromagnetic pump, mechanical pump can be used in high temperature fluent metal realizes liquid metal in the loop
Circulation.Compared to electromagnetic pump, mechanical pump is high-efficient, is the preferred pump-type of the following big flow main pump.Due to high-temperature liquid state lead/lead
Bismuth has very strong corrosivity to the metallic conduit for constituting circuit, by adjusting the oxygen content in liquid metal to suitable model
It encloses, the generation of dissolved corrosion and oxidation corrosion can be effectively relieved.Therefore, as liquid heavy metal circuit technology beforehand research platform
Driving device is needed to the oxygen content being passed through in gas regulation liquid metal appropriate after return progress vacuumize process.
Meanwhile the safe operation in order to guarantee system, need the practical operation situations such as the flow according to liquid metal, temperature to adjust high temperature
Liquid metal liquid level suitable height in pump chambers, the high temperature of liquid metal will not be conducted to shield electric machine, damage motor.
According to current finding, suitable totally-enclosed mechanical pump there is no to meet the requirements.
Summary of the invention
In order to solve the above technical problem, the present invention provides a kind of hermetically sealed liquid metal mechanical pumps.The mechanical pump can be right
Circuit where liquid metal carries out vacuumize process to purify circuit where liquid metal, while can be passed through protective gas realization
The control of the liquid level of high temperature fluent metal.
In order to achieve the object of the present invention, the invention adopts the following technical scheme:
A kind of hermetically sealed liquid metal mechanical pump, the pump including the pump housing, impeller of pump and the suspension of vertically arranged and lower end
Axis, the impeller of pump are fixed on pump shaft lower end, the impeller of pump back side be equipped be fixed on pump shaft and with the impeller of pump hand of spiral
On the contrary, for preventing liquid metal from overflowing the decompression spiral pump impeller of the pump housing；It is disposed with and is set on the pump shaft outside the pump housing
Cyclic annular housing, form the chamber that communicates with the pump body between the housing and pump shaft, installed on the outer casing inner wall
Having prevents from being overflowed by the pump housing and being entered the annular baffle that the indoor liquid metal of the chamber forms surge, and the housing side is equipped with
The boost port inflated into the chamber and the discharge outlet that the chamber indoor gas is discharged.
Further technical solution: the housing side is equipped with the liquid guiding tube that linker is communicated and formed with the chamber,
The liquid guiding tube is equipped with the chamber, and to realize, air pressure keeps the pressure guiding pipe balanced, institute in chamber room pressure and liquid guiding tube
State the liquidometer being equipped in liquid guiding tube for measuring liquid metals liquid level in chamber.
Further technical solution: it is equipped in the chamber above the partition and coaxially arranged with the pump shaft
Gas flow guiding set and gas barrier ring, the gas barrier ring are connected to the gas flow guiding set lateral surface and constitute the chamber
Room is divided into the barrier assembly of upper chamber and lower chambers, and the gas flow guiding set internal diameter is gradually increased and opening-like from top to bottom,
Gas flow guiding set side is equipped with the gas flow guiding hole for being connected to upper chamber with lower chambers, and the boost port is provided on described
Shell side where chamber, the discharge outlet are provided with the shell side where the lower chambers.
Further technical solution: the partition has multiple and along the pump shaft length direction arranged for interval, the partition
Spacing is equipped between pump shaft.
Further technical solution: the decompression spiral pump impeller is made of ring set, and the ring set lateral surface is equipped with and pump leaf
Take turns the opposite screw thread of the hand of spiral.
Further technical solution: the pump shaft upper end is equipped with the shield electric machine of driving pump shaft rotation, the shielding electricity
Machine includes shell, installation shield electric machine connecting shaft rotor inside the shell, shield electric machine stator and electric for the shielding to be isolated
The isolating seal set of machine connecting shaft rotor, shield electric machine stator offers the cooling to shield electric machine cooling on the outer cover body
Water circulation channel.
Further technical solution: the housing, liquid guiding tube side be respectively equipped with multiple thermocouple sensor interfaces.
Further technical solution: the pressure guiding pipe is equipped with pressure sensor interface.
The beneficial effects of the present invention are:
(1) in the hermetically sealed liquid metal mechanical pump access fluent metal loop of the present invention, the discharge on chamber can be passed through
Mouth carries out vacuumize process to fluent metal loop, and can be passed through by the boost port on chamber into fluent metal loop suitable
The protective gas of amount cleans fluent metal loop with realizing.
It is micro- to being filled in liquid metal fluid reservoir after the hermetically sealed liquid metal mechanical pump access fluent metal loop of the present invention
Liquid metal is pressed into after liquid metal described in entire circuit enters the pump housing by positive pressure protection gas, and the decompression spiral pump impeller is with pump
Axis rotation, which generates certain pressure, to prevent liquid metal from entering chamber by the pump housing, after liquid metal enters chamber by the pump housing
Can compression chamber indoor gas simultaneously form certain pressure, when the pressure of liquid metal is greater than the indoor air pressure of chamber, institute can be passed through
It states boost port and is filled with protective gas automatically into chamber, it is ensured that the pressure of the indoor air pressure of chamber and liquid metal reaches balance, from
And realize control liquid metal liquid level suitable height below protective gas isolation ring.In addition, the chamber has pulled open pump leaf
The distance between wheel and shield electric machine make to generate a cooling transition region between high temperature fluent metal liquid level and shield electric machine, resistance
Only heat transfer guarantees the service life of driving device to driving device.
The pump shaft lower end suspension that the present invention uses, i.e., can avoid pump operation mistake as long as using having sufficiently rigid pump shaft
Shake in journey, to avoid using bearing class support component, which avoids bearing class support component and liquid metal completely
Contact, avoids corrosion and damage of the delicate bearing class support component in high temperature fluent metal.
The present invention provides a kind of totally-enclosed mechanical pumps, it is ensured that air will not enter in pilot system, avoid air and liquid
State metal, which reacts, generates oxide impurity, which is conducive to carry out property of the mechanical pump under liquid heavy metal fluid media (medium)
It can test and screen the research such as structural material.The mechanical pump can be used not only for chemical industry, it is often more important that for liquid in future gold
The core main pump development for belonging to reactor lays the foundation.
(2) liquid guiding tube of the present invention is convenient for the installation of liquidometer and in time to the liquid of the indoor high temperature fluent metal of chamber
Position is observed, to be conducive to adjust protective gas pressure according to level condition, it is ensured that chamber room pressure and liquid gold
The pressure of category reaches balance, realizes the purpose of control liquid metal liquid level proper height below protective gas isolation ring.It is described
Pressure guiding pipe makes air pressure and the indoor air pressure of chamber in liquid guiding tube keep balancing, it is ensured that liquid level and the indoor liquid of chamber in liquid guiding tube
Position keeps identical.
(3) gas flow guiding of the present invention set is it is characterized in that internal diameter is gradually increased and opening-like from top to bottom,
And it is provided with aperture.Gas barrier ring of the present invention is structurally characterized in that and is connected to gas flow guiding set lateral surface, by pump chambers
It is divided into upper chamber and lower chambers, gas boosting mouth and gas discharge outlet is separated.The synergistic effect of the two is to work as to need to control liquid
When state metal bath surface, protective gas is passed through by pump chambers by gas boosting mouth, gas flow guiding set guides protective gas from pump shaft
Gap between flow guide sleeve enters pump chambers, and the pollutant generated in operational process is taken out of from discharge outlet, prevents pollutant
Pollution is generated into motor bearings, causes termination of pumping.
(4) partition of the present invention, which has, prevents liquid metal from generating surge phenomenon in chamber, i.e., the described partition can be with
Inhibition is played to the flowing of liquid metal, prevents liquid metal from further springing up to chamber top.Multiple partitions can be big
Width reduces the surge phenomenon, conducive to liquid metal is quickly controlled the liquid level in setting, so that it is guaranteed that corresponding liquid
The research of metal fluid dielectric behavior can be normally carried out.
(5) thermocouple Sensing interface of the present invention, pressure sensing interface respectively visit thermocouple sensing probe and pressure sensing
The different parts of head access pump, with monitoring temperature and pressure.
Detailed description of the invention
Fig. 1 is schematic structural view of the invention.
Attached meaning marked in the figure is as follows:
The 1- pump housing；2- gasket；3- pump housing upper flange；4- the first thermocouple sensor interface；5- housing；6- partition；7-
Two thermocouple sensor interfaces；8- gas barrier ring；9- pump housing fixed disk；10- sealing ring；11- shield electric machine seat；12- water cooling goes out
Mouthful；13- first bearing；14- coil；15- shield electric machine shell；16- shield electric machine upper cover；17- bearing snap spring；The second axis of 18-
It holds；19- shield electric machine connecting shaft rotor；20- isolating seal set；21- shield electric machine stator；22- water cooling import；23- pressure sensing
Interface；24- bearing cap；25- gas flow guiding set；26- liquidometer loose flange；27- liquidometer mounting flange；28- third thermocouple
Sensor interface；29- liquidometer ceramic tube；30- level probe；31- liquid guiding tube；32- pump cover fastening screw；33- depressurizes spiral
Pump impeller；34- pumps leaf non-slip mat；35- impeller of pump；36- impeller fixing bolt；The 4th thermocouple sensor interface of 37-；38- first draws
Pressure pipe；The second pressure guiding pipe of 39-；40- liquid metal storage tank；The first valve of 41-；The second valve of 42-；43- protective gas storage tank；
The first solenoid valve of 44-；45- second solenoid valve.
Specific embodiment
More specific detail is made to technical solution of the present invention below with reference to embodiment:
The present invention includes the pump shaft of the pump housing 1, impeller of pump 35 and the suspension of vertically arranged and lower end as shown in Figure 1:, described
Impeller of pump 35 is fixed on pump shaft lower end, 35 back side of impeller of pump be equipped be fixed on pump shaft and with 35 hand of spiral phase of impeller of pump
Instead, for preventing liquid metal from overflowing the decompression spiral pump impeller 33 of the pump housing 1；It is disposed with outside the pump housing 1 and is set in the pump shaft
On cyclic annular housing 5, formed between the housing 5 and pump shaft and the chamber that is communicated inside the pump housing 1,5 inner wall of housing
On be equipped with and the indoor liquid metal of the chamber is prevented from being overflowed and entered by the pump housing 1 form the annular baffle 6 of surge, the partition
6 have multiple and are equipped with spacing, 5 side of housing between the pump shaft length direction arranged for interval, the partition 6 and pump shaft
Equipped with the boost port inflated into the chamber and the discharge outlet that the chamber indoor gas is discharged.
5 side of housing, which is equipped with, communicates with the chamber and is formed the liquid guiding tube 31 of linker, on the liquid guiding tube 31
Equipped with the chamber, to realize, air pressure keeps the pressure guiding pipe balanced, the liquid guiding tube 31 in chamber room pressure and liquid guiding tube 31
Liquidometer for measuring liquid metals liquid level in chamber is inside installed.Liquidometer of the present invention is by liquidometer ceramic tube
29 and level probe 30 in liquidometer ceramic tube 29 constitute, when the indoor liquid metal liquid level of chamber and the liquid level are visited
Circuit where the liquidometer can be turned on and generated corresponding current signal and realize level gauging by the contact of needle 30.
Be equipped in the chamber be located at 6 top of partition and the gas flow guiding set 25 coaxially arranged with the pump shaft and
Gas barrier ring 8, the gas barrier ring 8, which is connected to the gas flow guiding and covers 25 lateral surfaces and constitute, is divided into epicoele for the chamber
The barrier assembly of room and lower chambers, 25 internal diameters of the gas flow guiding set are gradually increased from top to bottom and opening-like, the gas
25 side of flow guide sleeve is equipped with the gas flow guiding hole for being connected to upper chamber with lower chambers, and the boost port is provided with the institute of upper chamber
5 side of shell, the discharge outlet is provided with 5 side of shell where the lower chambers.
The decompression spiral pump impeller 33 is made of ring set, and the ring set lateral surface is equipped with opposite with 35 hand of spiral of impeller of pump
Screw thread.Between pump shaft and pump housing upper flange 3, the decompression spiral pump impeller 33 plays the decompression spiral pump impeller 33 in itself
Certain sealing function, when being rotated with pump shaft, since screw thread and 35 hand of spiral of impeller of pump are on the contrary, so can generate one
Fixed back draught, it is possible thereby to which metal liquid is further prevented to enter chamber by the gap between pump shaft and pump housing upper flange 3.
The pump shaft upper end is equipped with the shield electric machine of driving pump shaft rotation, and the shield electric machine includes shell 15, installation
Shield electric machine connecting shaft rotor 19, shield electric machine stator 21 in shell 15 and for the shield electric machine connecting shaft rotor to be isolated
19, the isolating seal of shield electric machine stator 21 covers 20, and the cooling water to shield electric machine cooling is offered on 15 ontology of shell
Circulation canal.The pump shaft can drive axis connection or pump shaft by king-size shielding electricity by shaft coupling and shield electric machine
Machine drive shaft is constituted.
The housing 5, liquid guiding tube 31 side be respectively equipped with multiple thermocouple sensor interfaces, for example, institute in the present embodiment
Housing 5 is stated equipped with the first thermocouple sensor interface 4 and the second thermocouple sensor interface 7, the liquid guiding tube 31 is equipped with the
Three thermocouple sensor interfaces 28 and the 4th thermocouple sensor interface 37.The pressure guiding pipe is equipped with pressure sensor interface 23.
Claims (8)
1. a kind of hermetically sealed liquid metal mechanical pump, it is characterised in that: including the pump housing (1), impeller of pump (35) and vertically cloth
It sets and the pump shaft of lower end suspension, the impeller of pump (35) is fixed on pump shaft lower end, impeller of pump (35) back side is equipped with and is fixed on
On pump shaft and it is opposite with impeller of pump (35) hand of spiral, for prevent liquid metal overflow the pump housing (1) decompression spiral pump impeller
(33)；The cyclic annular housing (5) being set on the pump shaft, shape between the housing (5) and pump shaft are disposed with outside the pump housing (1)
At the chamber communicated with the pump housing (1) inside, being equipped on housing (5) inner wall prevents from being overflowed and being entered by the pump housing (1)
The indoor liquid metal of chamber forms the annular baffle (6) of surge, and housing (5) side is equipped with and inflates into the chamber
Boost port and by the chamber indoor gas be discharged discharge outlet.
2. hermetically sealed liquid metal mechanical pump as described in claim 1, it is characterised in that: housing (5) side be equipped with
The chamber communicates and is formed the liquid guiding tube (31) of linker, and the liquid guiding tube (31) is equipped with the chamber to realize chamber
Room pressure and liquid guiding tube (31) interior air pressure keep the pressure guiding pipe of balance, are equipped in the liquid guiding tube (31) for measuring chamber
The liquidometer of interior liquid metals liquid level.
3. hermetically sealed liquid metal mechanical pump as described in claim 1, it is characterised in that: be equipped in the chamber described in being located at
Partition (6) top and the gas flow guiding set (25) and gas barrier ring (8) coaxially arranged with the pump shaft, the gas barrier
Ring (8), which is connected to gas flow guiding set (25) lateral surface and constitutes, is isolated group for what the chamber was divided into upper chamber and lower chambers
Part, gas flow guiding set (25) internal diameter are gradually increased and opening-like from top to bottom, and gas flow guiding set (25) side is set
There is the gas flow guiding hole for being connected to upper chamber with lower chambers, the boost port is provided with shell (5) side where the upper chamber
Face, the discharge outlet are provided with shell (5) side where the lower chambers.
4. hermetically sealed liquid size metal machinery pump as described in claim 1, it is characterised in that: the partition (6) has multiple
And spacing is equipped between the pump shaft length direction arranged for interval, the partition (6) and pump shaft.
5. hermetically sealed liquid metal mechanical pump as described in claim 1, it is characterised in that: the decompression spiral pump impeller (33) by
Ring set is constituted, and the ring set lateral surface is equipped with the screw thread opposite with impeller of pump (35) hand of spiral.
6. hermetically sealed liquid metal mechanical pump as described in claim 1, it is characterised in that: the pump shaft upper end is equipped with driving
The shield electric machine of pump shaft rotation, the shield electric machine include that shell (15), the shield electric machine being mounted in shell (15) are worked day and night
Sub (19), shield electric machine stator (21) and for the shield electric machine connecting shaft rotor (19), shield electric machine stator (21) to be isolated
Isolating seal set (20), the cooling water circulation channel to shield electric machine cooling is offered on shell (15) ontology.
7. hermetically sealed liquid metal mechanical pump as claimed in claim 2, it is characterised in that: the housing (5), liquid guiding tube (31)
Side be respectively equipped with multiple thermocouple sensor interfaces.
8. hermetically sealed liquid metal mechanical pump as claimed in claim 2, it is characterised in that: the pressure guiding pipe is passed equipped with pressure
Sensor interface (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811203174.2A CN109185164A (en) | 2018-10-16 | 2018-10-16 | A kind of hermetically sealed liquid metal mechanical pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811203174.2A CN109185164A (en) | 2018-10-16 | 2018-10-16 | A kind of hermetically sealed liquid metal mechanical pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109185164A true CN109185164A (en) | 2019-01-11 |
Family
ID=64944849
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811203174.2A Pending CN109185164A (en) | 2018-10-16 | 2018-10-16 | A kind of hermetically sealed liquid metal mechanical pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109185164A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113669264A (en) * | 2021-07-15 | 2021-11-19 | 中国核动力研究设计院 | Liquid metal pump modularization test device |
| CN113847430A (en) * | 2021-09-16 | 2021-12-28 | 宣达实业集团有限公司 | Sour gas self-sealing system |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57176390A (en) * | 1981-04-24 | 1982-10-29 | Hitachi Ltd | Mechanical pump for liquid metal |
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| JPS57176390A (en) * | 1981-04-24 | 1982-10-29 | Hitachi Ltd | Mechanical pump for liquid metal |
| JPS58138290A (en) * | 1982-02-10 | 1983-08-17 | Hitachi Ltd | Liquid metal pump |
| JPS58150094A (en) * | 1982-03-02 | 1983-09-06 | Mitsubishi Atom Power Ind Inc | Free liquid level type mechanical pump |
| US4511315A (en) * | 1982-03-30 | 1985-04-16 | Doryokuro Kakunenryo Kaihatsu Jigyodan | Liquid metal mechanical pump |
| CN201149504Y (en) * | 2007-12-25 | 2008-11-12 | 金川集团有限公司 | Apparatus for detecting inner liquid level of high temperature high voltage rank poison medium container |
| CN203570602U (en) * | 2013-11-27 | 2014-04-30 | 重庆星格泵业集团有限公司 | Special heavy metal conveying pump |
| CN107503947A (en) * | 2017-09-13 | 2017-12-22 | 中广核研究院有限公司 | Liquid metal conveying mechanical pump |
| CN207892879U (en) * | 2017-12-28 | 2018-09-21 | 四川省自贡工业泵有限责任公司 | Vertical long pump for liquid salts |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113669264A (en) * | 2021-07-15 | 2021-11-19 | 中国核动力研究设计院 | Liquid metal pump modularization test device |
| CN113669264B (en) * | 2021-07-15 | 2023-11-24 | 中国核动力研究设计院 | Liquid metal pump modularization test device |
| CN113847430A (en) * | 2021-09-16 | 2021-12-28 | 宣达实业集团有限公司 | Sour gas self-sealing system |
| CN113847430B (en) * | 2021-09-16 | 2023-09-12 | 宣达实业集团有限公司 | Sour gas self-sealing system |
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