CN2254492Y - Magnetic drive ammonia pump - Google Patents
Magnetic drive ammonia pump Download PDFInfo
- Publication number
- CN2254492Y CN2254492Y CN 95242542 CN95242542U CN2254492Y CN 2254492 Y CN2254492 Y CN 2254492Y CN 95242542 CN95242542 CN 95242542 CN 95242542 U CN95242542 U CN 95242542U CN 2254492 Y CN2254492 Y CN 2254492Y
- Authority
- CN
- China
- Prior art keywords
- pump
- steel assembly
- ammonia
- hitch
- separation sleeve
- 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
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model relates to a magnetic drive ammonia pump used for delivering the ammonia liquor in the ammonia refrigeration system, which is composed of pump casing, a static ring, a movable ring, an impeller, a partition plate, a isolating sleeve, an inner magnetic steel assembly, an outer magnetic steel assembly, a pump shaft, a connecting frame, a motor, etc., wherein, the connecting frame is not provided with an air through hole. When the magnetic drive ammonia pump is used for pumping the ammonia liquor, the utility model can not generate ammonia liquor leakage, and thus, the utility model prevents environment pollution and hurt for human being caused by the ammonia. Meanwhile, the pump has the advantages of simple structure, convenient maintenance and low energy consumption.
Description
The utility model relates to the pump that is used to carry ammoniacal liquor in a kind of ammonia refrigerating system.
As everyone knows, the feed liquid way of ammonia refrigerating system has gravity type feed flow and ammonia pump formula feed flow two big classes.The tradition ammonia pump has gear type and centrifugal two kinds, because their axle envelope is to rely on the friction that fits tightly of being fixed in the rotating ring on the pump shaft and being fixed between stationary ring end face on the pump housing to realize sealing, fitting tightly of both ends of the surface is that thrust by means of spring reaches.This dynamic sealing means complex structure, working life is short, and sealing effect is not exclusively reliable, and pumping in the process of ammoniacal liquor, the seepage of ammoniacal liquor is inevitable, and this gives human undoubtedly and environment brings harm.
Ammonia-shielding pump is that centrifugal ammonia pump has been added a sealing cover, though the seepage situation of ammoniacal liquor is improved, this Ammonia-shielding pump is made complicated, maintenance difficulty, power consumption high (its power of motor is generally about 7KW) and involving great expense.
The outer steel assembly of existing magnetic force driving pump inside and interior magnet steel assembly are isolated fully by separation sleeve, and the outer steel assembly rotation along the separation sleeve outer by the motor band, thereby magnet steel assembly rotation impeller is rotated in driving, and pumps liquid.The sealing of separation sleeve and pump case is a static sealing, does not have other part that rubs when the magnet steel assembly rotated in the outer steel assembly drove, do not have axially and radial clearance, thereby ne-leakage, the excessive leakage of liquid that can not.Yet offer several air on its hitch of existing magnetic force driving pump and import (going out) hole, in order to distribute the heat that produces when the outer steel assembly rotates, when it pumps the liquefied ammonia of low temperature (28 ℃), enter the interior airborne moisture content of hitch with the ice formation on separation sleeve of attached collection, because the gap of outer steel assembly and separation sleeve is very little, be easy to stuck outer steel, cause burn-down of electric motor.Therefore, the common magnetic force driving pump low temperature ammoniacal liquor that can not be used for ammonia refrigerating system is pumped.
The purpose of this utility model provides a kind of convenient and reliable liquefied ammonia and pumps pump, makes its unlikely seepage of liquefied ammonia in the process of pumping at liquefied ammonia, to prevent that ammoniacal liquor is to the pollution of environment with to the mankind's harm, easy access again simple in structure simultaneously.
The utility model is the centrifugal ammonia pump of magneto drive, form by pump case, stationary ring, rotating ring, impeller, dividing plate, separation sleeve, interior magnet steel assembly, pump shaft, outer steel assembly, hitch and motor etc., its impeller, interior magnet steel assembly and outer steel assembly etc. are positioned at the housing of pump case and hitch composition, isolate by separation sleeve between the inside and outside magnet steel assembly, the outer steel assembly connects with machine shaft, interior magnet steel assembly and impeller are connected as one by pump shaft, do not offer air hole on the hitch.The outer steel assembly is enclosed within the space that is formed by separation sleeve, hitch and motor end face and isolate from outer air.In the space that forms by separation sleeve, hitch and motor end face, fill freezing fluid.In this space, also can there be any liquid medium, but gassy.
The utility model is owing to be that the hitch in the existing common magnetic force driving pump is formed through improvement, so it has absorbed the advantage of common magnetic force driving pump, use it in the ammonia refrigerating system, when carrying liquefied ammonia, the ammoniacal liquor ne-leakage, avoided ammonia to environment and human harm, simultaneously, owing to do not have air hole on the hitch after improving, avoided air to enter separation sleeve continuously, in the space that hitch and motor end face form, so in pumping the low-temperature liquid ammonia process, be unlikely between separation sleeve and the outer steel assembly because of freezing stuck phenomenon takes place, this pump structure is simple simultaneously, maintenance is convenient.
Now in conjunction with the accompanying drawings the utility model is described in further detail.
Fig. 1 is a sectional drawing of the present utility model.
Fig. 2 is the plan view of its hitch.
As shown in Figure 1, 2, this magneto drive lift of pump is 15 meters, motor power (output) is 1.1 kilowatts, the both ends of the surface of hitch (2) connect with the end face of motor (1) and the end face seal of separation sleeve (7) respectively, the other end of separation sleeve (7) connects with the end face seal of pump case (9), has formed two confined spaces being made up of pump case (9) and separation sleeve (7) and hitch (2), separation sleeve (7) and motor (1) end face like this in whole pump housing inside.In pump case (9) and the confined space inside that separation sleeve (7) forms rotating ring (10), stationary ring (11), impeller (8), dividing plate (6), interior magnet steel assembly (4) and pump shaft (5) are installed, wherein interior magnet steel assembly (4) is connected as one by pump shaft (5) with impeller (8); In the confined space that separation sleeve (7), hitch (2) and motor (1) end face form, outer steel assembly (3) is installed, it is fixedly mounted on the machine shaft.In this space, fill freezing fluid.Offer the oil hole of a M12-6H and the drain oil of a M12-6H on hitch (2), two Kong Junyong screw plugs block sealing during work.
In the above-described embodiments, also can not have any liquid medium in the seal space that forms by separation sleeve (7), hitch (2) and motor (1) end face, but be full of air.Hitch this moment (2) is gone up and can not offered oiling and drain oil, when pumping liquefied ammonia,, there is no air in the working procedure and continue to enter this space though in this space air is arranged, so the outer steel assembly also be unlikely by icing stuck, still can proper functioning.
Claims (3)
1, a kind of magneto drive ammonia pump, by pump case, stationary ring, rotating ring, impeller, dividing plate, separation sleeve, interior magnet steel assembly, pump shaft, the outer steel assembly, formation such as hitch and motor, impeller wherein, interior magnet steel assembly and outer steel assembly are positioned at the housing that pump case and hitch etc. are formed, in, isolate by separation sleeve between the outer steel assembly, the outer steel assembly connects with machine shaft, interior magnet steel assembly and impeller are connected as one by pump shaft, it is characterized in that not having air hole on this hitch, the outer steel assembly is enclosed within by separation sleeve, in the space that hitch and motor end face form and isolate from outer air.
2, magneto drive ammonia pump according to claim 1 fills freezing fluid in the space that it is characterized in that being formed by separation sleeve, hitch and motor end face.
3, magneto drive ammonia pump according to claim 1, gassy in the space that it is characterized in that forming by separation sleeve, hitch and motor end face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95242542 CN2254492Y (en) | 1995-12-15 | 1995-12-15 | Magnetic drive ammonia pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95242542 CN2254492Y (en) | 1995-12-15 | 1995-12-15 | Magnetic drive ammonia pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2254492Y true CN2254492Y (en) | 1997-05-21 |
Family
ID=33883474
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95242542 Expired - Fee Related CN2254492Y (en) | 1995-12-15 | 1995-12-15 | Magnetic drive ammonia pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2254492Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105422468A (en) * | 2015-11-25 | 2016-03-23 | 湖南耐普泵业股份有限公司 | Cryogenic pump |
| CN109356863A (en) * | 2018-11-23 | 2019-02-19 | 广东博宇集团有限公司 | A kind of application method of magnetic drive pump, pumping water device and magnetic drive pump |
| CN113027775A (en) * | 2021-04-08 | 2021-06-25 | 上海交通大学 | High-efficiency small-flow closed type micro low-temperature centrifugal pump with inducer |
| CN114810674A (en) * | 2022-06-30 | 2022-07-29 | 四川绵竹川润化工有限公司 | Sealed liquid ammonia pump for liquid ammonia transportation |
-
1995
- 1995-12-15 CN CN 95242542 patent/CN2254492Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105422468A (en) * | 2015-11-25 | 2016-03-23 | 湖南耐普泵业股份有限公司 | Cryogenic pump |
| CN109356863A (en) * | 2018-11-23 | 2019-02-19 | 广东博宇集团有限公司 | A kind of application method of magnetic drive pump, pumping water device and magnetic drive pump |
| CN109356863B (en) * | 2018-11-23 | 2023-09-12 | 广东博宇集团有限公司 | Magnetic pump, water pumping device and use method of magnetic pump |
| CN113027775A (en) * | 2021-04-08 | 2021-06-25 | 上海交通大学 | High-efficiency small-flow closed type micro low-temperature centrifugal pump with inducer |
| CN114810674A (en) * | 2022-06-30 | 2022-07-29 | 四川绵竹川润化工有限公司 | Sealed liquid ammonia pump for liquid ammonia transportation |
| CN114810674B (en) * | 2022-06-30 | 2022-11-29 | 四川绵竹川润化工有限公司 | Sealed liquid ammonia pump for liquid ammonia transportation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |