CN104696266B - Liquid metal pool type driving device sealing assembly - Google Patents
Liquid metal pool type driving device sealing assembly Download PDFInfo
- Publication number
- CN104696266B CN104696266B CN201510067565.6A CN201510067565A CN104696266B CN 104696266 B CN104696266 B CN 104696266B CN 201510067565 A CN201510067565 A CN 201510067565A CN 104696266 B CN104696266 B CN 104696266B
- Authority
- CN
- China
- Prior art keywords
- pump
- seal closure
- box
- liquid metal
- seal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 229910001338 liquidmetal Inorganic materials 0.000 title claims abstract description 46
- 238000007789 sealing Methods 0.000 title claims abstract description 46
- 239000000498 cooling water Substances 0.000 claims abstract description 13
- 230000003068 static effect Effects 0.000 claims abstract description 8
- 230000007774 longterm Effects 0.000 claims abstract description 4
- 239000011261 inert gas Substances 0.000 claims description 11
- 210000004907 gland Anatomy 0.000 claims description 9
- 239000002826 coolant Substances 0.000 claims description 6
- 239000007788 liquid Substances 0.000 abstract description 11
- 229910001385 heavy metal Inorganic materials 0.000 abstract description 3
- 238000001816 cooling Methods 0.000 abstract 1
- 230000002093 peripheral effect Effects 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 20
- 230000001681 protective effect Effects 0.000 description 10
- 241000233855 Orchidaceae Species 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- 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
- F04D29/08—Sealings
- F04D29/086—Sealings especially adapted for liquid 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
- F04D29/586—Cooling; Heating; Diminishing heat transfer specially adapted for liquid pumps
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
The invention discloses a liquid metal pool type driving device sealing assembly and in particular relates to a liquid metal pool type driving device pump box sealing assembly used for conveying liquid metal with high-temperature and high-sealing requirements. An ordinary vertical mechanical pump is fixed to a pump box through a flange, wherein all the parts at the upper end of the pump flange are sealed in a sealing cover; a pump body impeller and a support part are immersed in the conveyed liquid metal; a free liquid level is reserved in the pump box; the upper part of the free liquid level is filled with micro-positive pressure insert protection gas, so that the sealed liquid heavy metal can be converted into sealed protection gas; then the dynamic sealed protection gas in a shaft seal is converted into static seal between pump connection flanges; a power supply and a signal leading-out wire connecting terminal are arranged on an end cover of the sealing cover; the connecting terminal adopts a sparking plug; a circulating cooling water jacket is arranged on the sealing cover in the peripheral direction and is used for cooling heat generated by a motor and a bearing in the sealing cover, thereby ensuring that the vertical mechanical pump is safe, long-term and stable in running.
Description
Technical field
The present invention relates to a kind of new liquid metal pool driving means black box, especially relate to a kind of conveying high
The liquid metal pool driving means pump box black box that temperature, high sealing require.
Background technology
Power part predominantly organic tool pump, electromagnetic pump and the gas bubble pump driving currently used for liquid metal.Electromagnetic pump is no dynamic
Sealing, sealing property is high.Gas bubble pump adopts gas to inject, it is to avoid the abrasion of mechanical flow passage components and corrosion.But electromagnetic pump and
Gas bubble pump is less efficient, and the flow that can be provided by and pressure head ratio are relatively limited, is therefore typically employed in and wants to revealing, wearing and tearing and corrode
Ask higher, relatively low occasion required to flow and pressure head, and operating cost and cost higher.Mechanical pump can provide higher
Flow and pressure head, but mechanical pump, because adopting dynamic sealing, easily produces and reveals, if applying in the occasion to leakage high requirement,
A set of sealing device must specially be designed, the design of its sealing device, manufacture and operation and maintenance cost are higher.
Content of the invention
Liquid metal pool driving means black box according to the present invention is one pool driving means sealing group of design
Part, is fixed on common vertical mechanical pump on pump box by flange, and syringe pump method orchid upper part is enclosed in a seal closure, the pump housing
Impeller and support section are immersed in conveyed liquid metal, leave certain free surface in pump box, and free surface top is filled out
Fill pressure-fired inert protective gas, so sealing liquid heavy metal can be changed into sealing pressure-fired protective gas, then dynamic
Sealing pressure-fired protective gas is changed into static sealing.
The technical solution adopted for the present invention to solve the technical problems is：A kind of liquid metal pool driving means sealing group
Part, including liquid metal injected system, stop valve, pump box black box, exhaust-valve and storage tank；Pump box black box includes pump
Case, vertical mechanical pump, seal closure, seal closure end cap, circulating cooling water jacket, cooling water inlet, coolant outlet, seal closure connect
Flange, pump box flange, liquid metal entrance, evacuated tube, flow-stopping plate, pump box inert gas entrance pipe, seal closure inert gas enter
Mouth pipe, binding post.Vertical mechanical pump includes gland seal assembly, the pump housing, pump intake, pump discharge, pump adpting flange.Have above pump box
Pump adpting flange, vertical mechanical pump and seal closure are arranged on pump adpting flange, and vertical mechanical pump is located in seal closure, by close
Sealing cover is sealed in motor more than the pump adpting flange of vertical mechanical pump, gland seal assembly part in seal closure, vertical mechanical
The gland seal assembly of pump is changed into the static seal between the flange on seal closure and pump adpting flange by dynamic sealing, realizes vertical mechanical
The complete zero leakage of pump.Seal closure upper end is seal closure end cap, and both are connected with sealing gasket and seal by screw thread, seal closure end cap
It is provided with binding post, mainly vertical mechanical pumping source and signal lead-out wire binding post, binding post adopts spark plug, close
Sealing cover circumferential directions have circulating cooling water jacket, and the heat producing for coolant seal cover internal cause motor and bearing is it is ensured that stand
Formula mechanical pump safety is steady in a long-term to be run.
Wherein, in pump box black box, seal closure is core structure, and seal closure end cap seal, seal closure are leaned in seal closure upper end
Circumferential directions have circulating cooling water jacket.
Wherein, seal closure end cap in pump box black box is disposed with signal leading-out terminal, signal leading-out terminal is spark
Plug.
The principle of the present invention is：
A kind of liquid metal pool driving means black box, including liquid metal injected system, pump box, seal closure, stands
Formula mechanical pump, storage tank.Liquid metal injected system is connected to pump box entrance, and pump box is open type pump box, and upper end is flange-interface,
Common vertical mechanical pump is connected with pump box flange by flange, arranges high temperature resistant O-ring or metal gasket enters between two flanges
Row sealing, pump lower end pump body portion is all immersed in conveyed liquid metal, including impeller, pump case, stator, lower slide
Bearing and part pump shaft, the sliding bearing being immersed in liquid metal is cooled down using the liquid metal being conveyed and is moistened
Sliding, in pump box, liquid metal is not completely filled with whole pump box, needs to retain a part of space in pump box flange to pump box liquid level,
Pressure-fired inert protective gas, generally argon gas are filled, Pump Shaft Seal is arranged on syringe pump method orchid upper part, using common in this space
Easily changeable packing seal, the static pressure using liquid itself seals the liquid metal leaking upwards by wheel backface,
Pump Shaft Seal is sealing pressure-fired inert protective gas by sealing liquid Metal Phase Transition, and pump adpting flange upper part is all enclosed in
In one seal closure, seal closure is connected with syringe pump method orchid by flange, is carried out using O-ring seal or metal gasket between two flanges
Sealing, in seal closure, with identical inert protective gas in pump box, its gas pressure is more slightly larger than pump loading pressure, can for filling
Ensure that in pump box, protective gas will not be changed into seal closure the dynamic sealing of pump by shaft sealing leakage to flange upper end simultaneously
It is ensured that sealing reaches zero leakage, seal closure circumferential directions have an annular cooling water set to static sealing, external recirculated cooling water,
Take away the heat that in seal closure, motor and parts of bearings produce in time it is ensured that the reliable and stable operation of liquid metal pump.
It is an advantage of the current invention that：
(1) present invention is fixed on mechanical pump on pump box by flange, and the mechanical pump pump housing and wheel member are immersed in main appearance
In device liquid metal, mechanical pump shaft seal is arranged on primary tank upper end, does not need to install seal member, avoid leaf simultaneously in the pump housing
Wheel produces cavitation.
(2) in pump box of the present invention, liquid metal to primary tank top cover reserves a part of space filling pressure-fired inertia shielding gas
Body, is changed into sealing pressure-fired inert protective gas axle envelope sealing liquid heavy metal.
(3) mechanical pump flange upper part of the present invention is sealed in a seal closure, sealing pressure-fired inertia shielding gas
The dynamic sealing of body is changed into the static sealing by seal closure sealing.
(4) in pump box of the present invention, evacuated tube outlet height is higher than storage tank highest liquid level, and liquid metal can rely on
Gravity is emptied in storage tank, and primary tank assembly evacuated tube lower end arranges an electric check valve, can be certainly in accident conditions
Move and open valve, complete liquid metal and empty safely.
Brief description
Fig. 1 is a kind of liquid metal pool driving means black box flow chart of the present invention.
Fig. 2 is a kind of liquid metal pool driving means seal component architecture figure of the present invention.
In Fig. 1-2：1. liquid metal injected system, 2. stop valve, 3. pump box black box, 4. pump box, 5. vertical mechanical
Pump, 6. seal closure, 7. exhaust-valve, 8. storage tank, 9. seal closure end cap, 10. circulating cooling water jacket, 11. cooling water inlets, 12.
Coolant outlet, 13. gland seal assemblies, 14. seal closure adpting flanges, 15. pump housings, 16. pump intakes, 17. pump discharges, 18. pump boxs
Flange, 19. liquid metal entrances, 20. evacuated tube, 21. flow-stopping plates, 22 pump box inert gas entrance pipes, 23. seal closure indifferent gas
Body inlet tube, 24. liquid level of liquid metal faces, 25. pump adpting flanges, 26. binding posts.
Specific embodiment
Below in conjunction with the accompanying drawings and specific embodiment further illustrates the present invention.
As shown in Fig. 1～2, liquid metal injected system 1 is connected with pump box black box 3 by main pipeline, liquid metal
It is flowed in pump box black box 3 by injected system 1, the pump housing 15 part leaching of the vertical mechanical pump 5 in pump box black box 3
Not in the liquid metal in pump box 4, liquid metal, under the acting of vertical mechanical pump 5 drives, is flowed into by pump discharge 16
In the pipeline of required conveying or container.Pump box lower end is connected with storage tank 8 by evacuated tube, pump box black box 3 and storage
It is provided with exhaust-valve 7, exhaust-valve 7 is generally electric check valve, pump box black box 3 lower end evacuated tube outlet height is higher than between tank
Storage tank highest liquid level, in shutdown or the state of emergency, electric check valve 7 is opened, and liquid metal can rely on gravity certainly
So it is emptied in storage tank 8, complete liquid metal and empty safely.
There are pump box 4, vertical mechanical pump 5 and seal closure 6, there is liquid metal entrance pump box 4 side in pump box black box 3
19, flow-stopping plate 21, there is evacuated tube 20 below, pump box 4 is upper end open structure, and there is pump box flange 18 upper end, on pump box flange 18
It is connected with pump box inert gas entrance 22.Vertical mechanical pump 5 is arranged on pump box by pump adpting flange 14, and with pump box flange
18 are connected, and the pump housing 15 of vertical mechanical pump 5 is partially soaked in the liquid metal in pump box, liquid level of liquid metal in pump box 4
Face 24 is reserved with certain vertical range to pump box flange 18, fills pressure-fired inert protective gas in this space, lazy by pump box
Property gas inlet pipe 22 is flowed in pump box, and the gland seal assembly of vertical mechanical pump 5 adopts packing seal, and vertical mechanical pump 5 is in work
When making, pump shaft sealing assembly 13 only needs to seal the pressure-fired inert gas in pump box, sealing liquid metal in vertical mechanical pump 5
It is changed into sealing pressure-fired inert protective gas.
Pump adpting flange 25 in vertical mechanical pump 5 is all sealed in seal closure 6 with upper-part, and seal closure 6 passes through close
Sealing cover flange 14 is connected with the pump adpting flange 25 having screwed hole, is drawn by seal closure inert gas entrance pipe in seal closure 6
Enter and identical inert gas in pump box, in its pressure ratio pump box, pressure is slightly higher, is lived by the inert gas seal in seal closure
Inert gas in pump box, is changed into the gland seal assembly 13 of vertical mechanical pump 5 flange 14 and the pump on seal closure 6 by dynamic sealing
Static seal between adpting flange 25, realizes the complete zero leakage of vertical mechanical pump.
Seal closure 6 upper end is seal closure end cap 9, and both are connected with sealing gasket and seal by screw thread, seal closure end cap 9 sets
There are binding post 26, mainly vertical mechanical pump 5 power supply and signal lead-out wire binding post, binding post 26 adopts spark plug,
Seal closure 6 circumferential directions have circulating cooling water jacket 10, the heat producing for coolant seal cover internal cause motor and bearing, protect
Card vertical mechanical pump 5 safety is steady in a long-term to be run.
Claims (1)
1. a kind of liquid metal pool driving means black box it is characterised in that：Including liquid metal injected system (1), cut
Only valve (2), pump box black box (3), exhaust-valve (7) and storage tank (8)；Pump box black box (3) includes pump box (4), vertical
Mechanical pump (5), seal closure (6), seal closure end cap (9), circulating cooling water jacket (10), cooling water inlet (11), coolant outlet
(12), seal closure adpting flange (14), pump box flange (18), liquid metal entrance (19), evacuated tube (20), flow-stopping plate (21),
Pump box inert gas entrance pipe (22), seal closure inert gas entrance pipe (23), binding post (26)；Vertical mechanical pump (5) wraps
Include gland seal assembly (13), the pump housing (15), pump intake (16), pump discharge (17), pump adpting flange (25)；Pump box (4) has pump above
Adpting flange (25), vertical mechanical pump (5) and seal closure (6) are arranged on pump adpting flange (25), and vertical mechanical pump (5) is located at
In seal closure (6), by seal closure (6) motor more than the pump adpting flange (25) of vertical mechanical pump (5), gland seal assembly
(13) part is sealed in seal closure, and the gland seal assembly (13) of vertical mechanical pump (5) is changed on seal closure (6) by dynamic sealing
Flange (14) and pump adpting flange (25) between static seal, realize the complete zero leakage of vertical mechanical pump；On seal closure (6)
Hold as seal closure end cap (9), both are connected with sealing gasket and seal by screw thread, and seal closure end cap (9) is provided with binding post
(26) it is, vertical mechanical pump (5) power supply and signal lead-out wire binding post, binding post (26) adopts spark plug, seal closure (6)
Circumferential directions have circulating cooling water jacket (10), and the heat producing for coolant seal cover internal cause motor and bearing is it is ensured that stand
Formula mechanical pump (5) safety is steady in a long-term to be run.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510067565.6A CN104696266B (en) | 2015-02-09 | 2015-02-09 | Liquid metal pool type driving device sealing assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510067565.6A CN104696266B (en) | 2015-02-09 | 2015-02-09 | Liquid metal pool type driving device sealing assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104696266A CN104696266A (en) | 2015-06-10 |
| CN104696266B true CN104696266B (en) | 2017-02-22 |
Family
ID=53343711
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510067565.6A Expired - Fee Related CN104696266B (en) | 2015-02-09 | 2015-02-09 | Liquid metal pool type driving device sealing assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104696266B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105134616A (en) * | 2015-07-22 | 2015-12-09 | 上海要要玖消防科技有限公司 | Air pressure protection type immersible pump |
| CN113669264B (en) * | 2021-07-15 | 2023-11-24 | 中国核动力研究设计院 | Liquid metal pump modularization test device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3607705A (en) * | 1969-04-14 | 1971-09-21 | James Nagle | Pumping system |
| CN2871934Y (en) * | 2005-11-08 | 2007-02-21 | 昆明嘉和泵业有限公司 | Sealer of air-tight pump |
| CN102635557A (en) * | 2012-04-17 | 2012-08-15 | 台州阳春机电有限公司 | Novel water pump |
| CN102691665A (en) * | 2011-03-21 | 2012-09-26 | 梁嘉麟 | A structure waterproof sealing method for a submersible pump |
| CN104179710A (en) * | 2014-07-31 | 2014-12-03 | 苏州淮通电气有限公司 | Submersible pump |
| FR3008748A1 (en) * | 2013-07-16 | 2015-01-23 | Optimex | ROTATING PUMP WITH PROTECTIVE FLUID, METHOD OF MANUFACTURE AND PUMPING SYSTEM THEREFOR |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4065232A (en) * | 1975-04-08 | 1977-12-27 | Andrew Stratienko | Liquid pump sealing system |
| DE3113662C2 (en) * | 1981-04-04 | 1985-02-07 | Klein, Schanzlin & Becker Ag, 6710 Frankenthal | Centrifugal pump for pumping liquid chlorine |
| JP2007231874A (en) * | 2006-03-02 | 2007-09-13 | Teikoku Electric Mfg Co Ltd | Gas sealed type canned motor pump |
-
2015
- 2015-02-09 CN CN201510067565.6A patent/CN104696266B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3607705A (en) * | 1969-04-14 | 1971-09-21 | James Nagle | Pumping system |
| CN2871934Y (en) * | 2005-11-08 | 2007-02-21 | 昆明嘉和泵业有限公司 | Sealer of air-tight pump |
| CN102691665A (en) * | 2011-03-21 | 2012-09-26 | 梁嘉麟 | A structure waterproof sealing method for a submersible pump |
| CN102635557A (en) * | 2012-04-17 | 2012-08-15 | 台州阳春机电有限公司 | Novel water pump |
| FR3008748A1 (en) * | 2013-07-16 | 2015-01-23 | Optimex | ROTATING PUMP WITH PROTECTIVE FLUID, METHOD OF MANUFACTURE AND PUMPING SYSTEM THEREFOR |
| CN104179710A (en) * | 2014-07-31 | 2014-12-03 | 苏州淮通电气有限公司 | Submersible pump |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104696266A (en) | 2015-06-10 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170222 |