CN104696266A - Liquid metal pool type driving device sealing assembly - Google Patents
Liquid metal pool type driving device sealing assembly Download PDFInfo
- Publication number
- CN104696266A CN104696266A CN201510067565.6A CN201510067565A CN104696266A CN 104696266 A CN104696266 A CN 104696266A CN 201510067565 A CN201510067565 A CN 201510067565A CN 104696266 A CN104696266 A CN 104696266A
- Authority
- CN
- China
- Prior art keywords
- pump
- seal closure
- box
- seal
- liquid metal
- 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.)
- Granted
Links
- 229910001338 liquidmetal Inorganic materials 0.000 title claims abstract description 48
- 238000007789 sealing Methods 0.000 title claims abstract description 32
- 239000000498 cooling water Substances 0.000 claims abstract description 14
- 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 13
- 210000004907 gland Anatomy 0.000 claims description 9
- 239000002826 coolant Substances 0.000 claims description 6
- 239000007788 liquid Substances 0.000 abstract description 9
- 229910001385 heavy metal Inorganic materials 0.000 abstract description 3
- 238000001816 cooling Methods 0.000 abstract description 2
- 230000002093 peripheral effect Effects 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 15
- 230000001681 protective effect Effects 0.000 description 9
- 238000012856 packing Methods 0.000 description 5
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 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
- 230000007704 transition Effects 0.000 description 2
- 229910052786 argon Inorganic materials 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005086 pumping Methods 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 novel liquid metal pool drive unit black box, especially relate to a kind of liquid metal pool drive unit pump box black box carrying high temperature, high sealing to require.
Background technique
The power unit driven for liquid metal at present mainly contains mechanical pump, electromagnetic pump and air lift pump.Electromagnetic pump stationary seal, sealability is high.Air lift pump adopts gas inject, avoids the abrasion and corrosion of mechanical flow passage components.But electromagnetic pump and gaslift pump efficiency lower, the flow that can provide and pressure head more limited, be therefore generally applied in leakage, abrasion and corrosion requirement be higher, lower occasion is 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 motive sealing, easily produces leakage, if when being applied in the occasion to leakage high requirement, must specialized designs a set of seal arrangement, the design of its seal arrangement, manufacture and operation and maintenance cost are higher.
Summary of the invention
The liquid metal pool drive unit black box that the present invention relates to is design pool drive unit black box; common vertical mechanical pump is fixed on pump box by flange; pump flange upper part is enclosed in a seal closure; pump housing impeller and supporting part are immersed in carried liquid metal; certain free surface is left in pump box; micro positive pressure inert protective gas is filled on free surface top; sealing liquid heavy metal can be changed into sealing micro positive pressure shielding gas like this, then dynamic seal (packing) micro positive pressure shielding 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 drive unit black box, comprises liquid metal injected system, stop valve, pump box black box, exhaust-valve and storage tank; Pump box black box comprises pump box, vertical mechanical pump, seal closure, seal closure end cap, circulating cooling water jacket, cooling water inlet, coolant outlet, seal closure adpting flange, pump box flange, liquid metal entrance, emptying pipe, flow-stopping plate, pump box inert gas entrance pipe, seal closure inert gas entrance pipe, tenminal block.Vertical mechanical pump comprises gland seal assembly, the pump housing, pump intake, pump discharge, pump adpting flange.Pump adpting flange is had above pump box, vertical mechanical pump and seal closure are arranged on pump adpting flange, vertical mechanical pump is positioned at seal closure, by seal closure motor more than the pump adpting flange of vertical mechanical pump, gland seal assembly seal parts in seal closure, the gland seal assembly of vertical mechanical pump is changed into static seal between flange on seal closure and pump adpting flange by motive sealing, realizes the complete zero leakage of vertical mechanical pump.Seal closure upper end is seal closure end cap, both are connected with sealing gasket by screw thread and seal, seal closure end cap is provided with tenminal block, mainly vertical mechanical pumping source and signal lighting outlet tenminal block, tenminal block adopts spark plug, seal closure circumferential directions has circulating cooling water jacket, is used for the heat that coolant seal cover internal cause motor and bearing produce, and ensures that vertical mechanical pump safety is steady in a long-term and runs.
Wherein, in pump box black box, seal closure is core structure, and seal closure upper end is by seal closure end bracket enclosed, and seal closure circumferential directions has circulating cooling water jacket.
Wherein, in pump box black box, seal closure end cap is furnished with signal leading out terminal, signal leading out terminal is spark plug.
Principle of the present invention is:
A kind of liquid metal pool drive unit black box, comprises liquid metal injected system, pump box, seal closure, vertical mechanical pump, storage tank.Liquid metal injected system is connected to pump box entrance, pump box is open type pump box, upper end is flange-interface, common vertical mechanical pump is connected with pump box flange by flange, between two flanges, high temperature resistant O type circle is set or metal gasket seals, pump lower end pump body portion is all immersed in carried liquid metal, comprise impeller, pump case, stator, lower slide bearing and part pump shaft, the sliding bearing be immersed in liquid metal utilizes the liquid metal carried to carry out Cooling and Lubricator, in pump box, liquid metal is not exclusively full of whole pump box, need to retain a part of space in pump box flange to pump box liquid level, micro positive pressure inert protective gas is filled in this space, be generally argon gas, Pump Shaft Seal is arranged on pump flange upper end part, adopt common easily changeable packing seal, liquid static pressure own is utilized to seal the liquid metal upwards leaked by wheel backface, Pump Shaft Seal is sealing micro positive pressure inert protective gas by sealing liquid Metal Phase Transition, pump adpting flange upper end part is all enclosed in a seal closure, seal closure is connected with pump flange by flange, O RunddichtringO or metal gasket is adopted to seal between two flanges, fill with inert protective gas identical in pump box in seal closure, its gas pressure is slightly larger than pump loading pressure, can ensure that in pump box, shielding gas can not by shaft sealing leakage to flange upper end, the dynamic seal (packing) of pump is changed into the static sealing of seal closure simultaneously, ensure that sealing reaches zero leakage, seal closure circumferential directions has annular cooling water cover, external recirculated cooling water, take away the heat that in seal closure, motor and bearing part produce in time, ensure the reliable and stable operation of liquid metal pump.
The invention has the advantages that:
(1) the present invention is fixed on mechanical pump on pump box by flange, the mechanical pump pump housing and wheel member are immersed in primary tank liquid metal, mechanical pump shaft seal is arranged on primary tank upper end, does not need to install sealed member in the pump housing, avoids impeller simultaneously and produces cavitation phenomenon.
(2) in pump box of the present invention, liquid metal to primary tank top cover is reserved a part of space and is filled micro positive pressure inert protective gas, and shaft seal sealing liquid heavy metal is changed into sealing micro positive pressure inert protective gas.
(3) mechanical pump flange upper part of the present invention is sealed in a seal closure, and the dynamic seal (packing) of sealing micro positive pressure inert protective gas is changed into the static sealing by seal closure sealing.
(4) in pump box of the present invention emptying pipe outlet height higher than the most high level of storage tank, liquid metal can rely on gravity to be emptied in storage tank, primary tank assembly emptying pipe lower end arranges an Electric Actuated Stop Valves, automatically can open valve when accident conditions, complete liquid metal safety emptying.
Accompanying drawing explanation
Fig. 1 is a kind of liquid metal pool drive unit black box flow chart of the present invention.
Fig. 2 is a kind of liquid metal pool drive unit 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 outlets, 13. gland seal assemblies, 14. seal closure adpting flanges, 15. pump housings, 16. pump intakes, 17. pump discharges, 18. pump box flanges, 19. liquid metal entrances, 20. emptying pipe, 21. flow-stopping plates, 22 pump box inert gas entrance pipes, 23. seal closure inert gas entrance pipe, 24. liquid level of liquid metal faces, 25. pump adpting flanges, 26. tenminal blocks.
Embodiment
The present invention is further illustrated below in conjunction with accompanying drawing and specific embodiment.
As shown in Fig. 1 ~ 2, liquid metal injected system 1 is connected with pump box black box 3 by main pipeline, liquid metal flow in pump box black box 3 by injected system 1, the pump housing 15 of the vertical mechanical pump 5 in pump box black box 3 is partially immersed in the liquid metal in pump box 4, liquid metal under the acting of vertical mechanical pump 5 drives, in the pipeline flowing into required conveying by pump discharge 16 or container.Pump box lower end is connected with storage tank 8 by emptying pipe; exhaust-valve 7 is provided with between pump box black box 3 and storage tank; exhaust-valve 7 is generally Electric Actuated Stop Valves; pump box black box 3 lower end emptying pipe outlet height is higher than the most high level of storage tank; when shutdown or the state of emergency; Electric Actuated Stop Valves 7 is opened, and liquid metal can rely on gravity to be naturally emptied in storage tank 8, completes liquid metal safety emptying.
Have pump box 4 in pump box black box 3, vertical mechanical pump 5 and seal closure 6, there is liquid metal entrance 19 pump box 4 side, flow-stopping plate 21, has emptying pipe 20 below, and pump box 4 is upper end open structure, there is pump box flange 18 upper end, pump box flange 18 is connected with pump box inert gas entrance 22.Vertical mechanical pump 5 is arranged on pump box by pump adpting flange 14, and be connected with pump box flange 18, the pump housing 15 part of vertical mechanical pump 5 is immersed in the liquid metal in pump box, in pump box 4, liquid level of liquid metal face 24 is reserved with certain perpendicular distance to pump box flange 18, micro positive pressure inert protective gas is filled in this space, flow in pump box by pump box inert gas entrance pipe 22, the gland seal assembly of vertical mechanical pump 5 adopts packing seal, vertical mechanical pump 5 operationally, Pump Shaft Seal assembly 13 only needs to seal the micro positive pressure inert gas in pump box, sealing liquid Metal Phase Transition in vertical mechanical pump 5 for sealing micro positive pressure inert protective gas.
Pump adpting flange 25 in vertical mechanical pump 5 is all sealed in seal closure 6 with upper-part, seal closure 6 is connected with the pump adpting flange 25 having tapped hole by seal closure flange 14, the inert gas identical with in pump box is introduced by seal closure inert gas entrance pipe in seal closure 6, its pressure ratio pump box internal pressure is slightly high, the inert gas in pump box is lived by the inert gas seal in seal closure, the gland seal assembly 13 of vertical mechanical pump 5 is changed into static seal between flange 14 on seal closure 6 and pump adpting flange 25 by motive sealing, realize the complete zero leakage of vertical mechanical pump.
Seal closure 6 upper end is seal closure end cap 9, both are connected with sealing gasket by screw thread and seal, seal closure end cap 9 is provided with tenminal block 26, mainly vertical mechanical pump 5 power supply and signal lighting outlet tenminal block, tenminal block 26 adopts spark plug, seal closure 6 circumferential directions has circulating cooling water jacket 10, is used for the heat that coolant seal cover internal cause motor and bearing produce, and ensures that vertical mechanical pump 5 safety is steady in a long-term and runs.
Claims (3)
1. a liquid metal pool drive unit black box, is characterized in that: comprise liquid metal injected system (1), stop valve (2), pump box black box (3), exhaust-valve (7) and storage tank (8), pump box black box (3) comprises 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), emptying pipe (20), flow-stopping plate (21), pump box inert gas entrance pipe (22), seal closure inert gas entrance pipe (23), tenminal block (26), vertical mechanical pump (5) comprises gland seal assembly (13), the pump housing (15), pump intake (16), pump discharge (17), pump adpting flange (25), pump box (4) has pump adpting flange (25) above, vertical mechanical pump (5) and seal closure (6) are arranged on pump adpting flange (25), vertical mechanical pump (5) is positioned at seal closure (6), by seal closure (6) motor more than the pump adpting flange (25) of vertical mechanical pump (5), gland seal assembly (13) seal parts is in seal closure, the gland seal assembly of vertical mechanical pump (5) (13) is changed into static seal between flange (14) on seal closure (6) and pump adpting flange (25) by motive sealing, realize the complete zero leakage of vertical mechanical pump, seal closure (6) upper end is seal closure end cap (9), both are connected with sealing gasket by screw thread and seal, seal closure end cap (9) is provided with tenminal block (26), for vertical mechanical pump (5) power supply and signal lighting outlet tenminal block, tenminal block (26) adopts spark plug, seal closure (6) circumferential directions has circulating cooling water jacket (10), be used for the heat that coolant seal cover internal cause motor and bearing produce, ensure that vertical mechanical pump (5) safety is steady in a long-term and run.
2. liquid metal pool drive unit black box as claimed in claim 1, it is characterized in that: in pump box black box (3), seal closure (6) is core structure, seal closure (6) upper end is by seal closure end cap (9) sealing, and seal closure circumferential directions has circulating cooling water jacket (10).
3. liquid metal pool drive unit black box as claimed in claim 1, it is characterized in that: in pump box black box (3), seal closure end cap (9) is furnished with signal leading out terminal (26), signal leading out terminal (26) is spark plug.
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 true CN104696266A (en) | 2015-06-10 |
| CN104696266B 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) |
Cited By (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 |
| CN113669264A (en) * | 2021-07-15 | 2021-11-19 | 中国核动力研究设计院 | Liquid metal pump modularization test device |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3607705A (en) * | 1969-04-14 | 1971-09-21 | James Nagle | Pumping system |
| US4065232A (en) * | 1975-04-08 | 1977-12-27 | Andrew Stratienko | Liquid pump sealing system |
| US4596510A (en) * | 1981-04-04 | 1986-06-24 | Klein, Schanzlin & Becker Aktiengesellschaft | Centrifugal pump for handling of liquid chlorine |
| CN2871934Y (en) * | 2005-11-08 | 2007-02-21 | 昆明嘉和泵业有限公司 | Sealer of air-tight pump |
| JP2007231874A (en) * | 2006-03-02 | 2007-09-13 | Teikoku Electric Mfg Co Ltd | Gas sealed type canned motor 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 |
-
2015
- 2015-02-09 CN CN201510067565.6A patent/CN104696266B/en not_active Expired - Fee Related
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3607705A (en) * | 1969-04-14 | 1971-09-21 | James Nagle | Pumping system |
| US4065232A (en) * | 1975-04-08 | 1977-12-27 | Andrew Stratienko | Liquid pump sealing system |
| US4596510A (en) * | 1981-04-04 | 1986-06-24 | Klein, Schanzlin & Becker Aktiengesellschaft | Centrifugal pump for handling of liquid chlorine |
| CN2871934Y (en) * | 2005-11-08 | 2007-02-21 | 昆明嘉和泵业有限公司 | Sealer of air-tight pump |
| JP2007231874A (en) * | 2006-03-02 | 2007-09-13 | Teikoku Electric Mfg Co Ltd | Gas sealed type canned motor 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 |
Cited By (3)
| 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 |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104696266B (en) | 2017-02-22 |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170222 |
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| CF01 | Termination of patent right due to non-payment of annual fee |