CN204851667U - No shaft seal circulating pump - Google Patents
No shaft seal circulating pump Download PDFInfo
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- CN204851667U CN204851667U CN201520539752.5U CN201520539752U CN204851667U CN 204851667 U CN204851667 U CN 204851667U CN 201520539752 U CN201520539752 U CN 201520539752U CN 204851667 U CN204851667 U CN 204851667U
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 27
- 238000007789 sealing Methods 0.000 claims description 35
- 230000000087 stabilizing effect Effects 0.000 claims description 12
- 239000007788 liquid Substances 0.000 claims description 10
- 239000000919 ceramic Substances 0.000 claims description 6
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 15
- 238000004804 winding Methods 0.000 description 9
- 229910000976 Electrical steel Inorganic materials 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 239000000696 magnetic material Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000003755 preservative agent Substances 0.000 description 3
- 230000002335 preservative effect Effects 0.000 description 3
- 229910052761 rare earth metal Inorganic materials 0.000 description 3
- 150000002910 rare earth metals Chemical class 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 235000006708 antioxidants Nutrition 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 230000001846 repelling effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000000153 supplemental effect Effects 0.000 description 1
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model provides a no shaft seal circulating pump belongs to the pump and already makes technical field. It has solved the problem of the big and poor stability of current circulating pump noise. This no shaft seal circulating pump includes that the bottom has the pump case of water inlet and delivery port, be equipped with the shield cover in the pump case, the shield cover divide into epicoele and the cavity of resorption that each other does not communicate from top to bottom with the inside of pump case, water inlet and delivery port all are linked together with the cavity of resorption, the stator has been linked firmly in the epicoele, be equipped with rotor and impeller in the cavity of resorption, the rotor links firmly with the impeller mutually, the magnetic ring has been linked firmly on the rotor, magnetic ring and positioning mechanism have still been linked firmly down in the cavity of resorption, go up magnetic ring and the homopolar relative setting of magnetic ring down, positioning mechanism's top and shield cover link firmly mutually, the bottom is supported and is leaned on in the center of impeller department, make rotor and the unsettled setting of impeller. This no shaft seal circulating pump has the low and stable good advantage of noise.
Description
Technical field
The utility model belongs to pump industry manufacturing technology field, relates to a kind of without shaft sealing recycle pump.
Background technique
The circulating liquid pump of conveying reaction, absorption, separation, regeneration of absorption solution in recycle pump finger device.The pump used that water circulation got up just is recycle pump, and the ducted hot water of such as heating gets up by recycle pump circulation.
Existing recycle pump, such as Chinese patent literature data discloses heat circulation pump [application number: 201280013058.9; Application publication number: CN103429905A], it has pump case and to be arranged in this pump case and by the pump impeller of motoring, the stator of this motor is arranged in the electric machine casing be connected with pump case; With the terminal box be arranged on electric machine casing, for the electrical connection of motor winding and the electric and/or electronic component of accommodation motor control assembly, terminal box by least two material fit the part that is connected to each other form, and terminal box is sealed shut relative to motor and external environment condition.
The recycle pump of this kind of structure, arranges rotor and axle in slit-tube, axle wears in the rotor and axle is connected mutually with rotor, and one end of axle is connected mutually with pump impeller, and after the recycle pump energising of this kind of structure, rotor rotating band moving axis rotates, thus impeller rotates.But the recycle pump of this kind of structure in use for some time, can accumulate certain incrustation scale on the madial wall of pump case, incrustation scale hinders the normal rotation of impeller, the noise of recycle pump is increased gradually, finally causes recycle pump to be stuck, poor stability.
Summary of the invention
The purpose of this utility model is for the above-mentioned problems in the prior art, proposes a kind of without shaft sealing recycle pump, solves and how to make existing recycle pump noise little, good stability.
The purpose of this utility model realizes by following technical proposal: a kind of without shaft sealing recycle pump, comprise the pump case that bottom has water intake and water outlet, it is characterized in that, radome is provided with in described pump case, the inside of pump case is divided into mutual disconnected epicoele and cavity of resorption up and down by described radome, described water intake is all connected with cavity of resorption with water outlet, stator is fixed with in described epicoele, rotor and impeller is provided with in described cavity of resorption, described rotor is connected mutually with impeller, described rotor is fixed with upper magnetic ring, lower magnet ring and positioning means is also fixed with in described cavity of resorption, described upper magnetic ring and lower magnet ring homopolarity are oppositely arranged, the top of described positioning means is connected mutually with radome, bottom is resisted against the center of impeller, make described rotor and the unsettled setting of impeller.
Upper magnetic ring and lower magnet ring homopolarity are oppositely arranged, lower magnet ring is fixed in cavity of resorption, upper magnetic ring and rotor upwards push away by the repulsion produced between upper magnetic ring and lower magnet ring, the height of positioning means to impeller plays spacing effect and plays stable effect to the rotation of impeller, at upper magnetic ring, rotor and the unsettled setting of impeller is made under lower magnet ring and the common effect of positioning means, when this recycle pump is energized, rotor impeller rotates, rotor and impeller can produce centrifugal force upwards in the process rotated, positioning means makes rotor and impeller be positioned in suitable height, namely rotor and impeller can not come in contact with the madial wall of pump case and radome, this recycle pump does not have axle, rotor and impeller are suspended in the height of setting all the time, frictional force is very little, do not affect by the incrustation scale that pump housing madial wall accumulates, rotor and vane rotary smooth and easy, noise is little, can not block, good stability.
Above-mentioned without in shaft sealing recycle pump, the outer surface of described rotor is coated with rotor cover, between described rotor cover and radome, there is gap one, connecting cylinder is provided with between described impeller and rotor, the top of described connecting cylinder is overlapped with rotor and is connected mutually, described impeller is connected in the bottom of connecting cylinder, has gap two between the bottom of described impeller and pump case.Connecting cylinder plays the effect connecting rotor and impeller, and rotor is rotated through connecting cylinder impeller and rotates, and the existence in gap one and gap two makes rotor and the unsettled setting of impeller, can not come in contact with the madial wall of the pump housing and radome, can not produce collision, noise is little, good stability.
Above-mentioned without in shaft sealing recycle pump, the diameter at described connecting cylinder top is greater than the diameter bottom connecting cylinder, and the madial wall of described connecting cylinder has abutment facing, and described abutment facing is positioned at connecting cylinder middle vertically.This kind of structure, makes rotor closer to stator, rotor highly sensitive, and the rotating center of impeller is less simultaneously, the good stability of vane rotary.
Above-mentioned without in shaft sealing recycle pump, described positioning means comprises supporting drum and ball, the top of described supporting drum is connected mutually with radome, the bottom of described supporting drum has the butting section in enlarging shape, described abutment facing is curved, the top of described ball is resisted against on the madial wall of butting section, and the bottom of described ball is resisted against on abutment facing, and the projection vertically of described ball is positioned at the center of impeller.Butting section and abutment facing position ball, ball is made to offset initial position, after rotor, connecting cylinder and vane rotary, frictional force between ball and connecting cylinder is little, ball is very little on the impact of rotor, connecting cylinder and vane rotary while playing positioning action, the setting of ball this kind of position, improve the stability of impeller and rotor rotation, and the setting of ball eliminates the bearing play that traditional water pump exists, make this recycle pump remain at subsonic working state, solve the problem that traditional water pump longer noise service time is larger.
Above-mentioned without in shaft sealing recycle pump, described positioning means comprises supporting drum, ball and bearing, the top of described supporting drum is connected mutually with radome, the bottom of described supporting drum has the butting section in enlarging shape, described bearing is arranged on abutment facing, the top of described ball is resisted against on the madial wall of butting section, and the bottom of described ball is resisted against on bearing, and the projection vertically of described ball is positioned at the center of impeller.The effect that bearing plays better detent ball is set, make supporting drum and ball play the effect of better locating impeller, connecting cylinder and rotor simultaneously, impeller, connecting cylinder and rotor can not be offset, rotate smooth and easy, ball matches with bearing, can better bearing play be eliminated, make this recycle pump noise little, good stability.
Above-mentioned without in shaft sealing recycle pump, the side that described bearing contacts with ball is provided with some and crosses liquid baths.Crossing liquid bath makes medium enter into the inner side of rotor by crossing liquid bath, and medium plays the effect of lubrication, reduces the frictional force between ball and bearing, makes the impact of ball on rotor and vane rotary little, rotor and wheel rotation smooth and easy, noise is little, good stability.
Above-mentioned without in shaft sealing recycle pump, described ball is ceramic ball.Ceramic ball has superhigh strength and anti abrasive feature.
Above-mentioned without in shaft sealing recycle pump, described radome is bowl-shape and bottom opening, and described rotor, rotor cover and supporting drum are all arranged in radome.Appropriate application space, reasonable in design, rotor, closer to stator, makes the highly sensitive of rotor.
Above-mentioned without in shaft sealing recycle pump, the outside cover of described connecting cylinder has stabilizing ring, and described stabilizing ring is positioned at the inner side of lower magnet ring, has gap three between the outer circumferential wall of described stabilizing ring and the circumferential madial wall of lower magnet ring.This recycle pump is when just starting, magnetic field between upper magnetic ring and lower magnet ring can produce certain change, namely can there is the problem of necessarily rocking when starting in rotor, connecting cylinder and impeller, stabilizing ring plays stable effect, make the magnetic field immediate stability between upper magnetic ring and lower magnet ring, the degree that minimizing rotor, connecting cylinder and impeller rock and time, rotor, connecting cylinder and impeller is made to enter into stable state fast, good stability.
Above-mentioned without in shaft sealing recycle pump, described upper magnetic ring is positioned at the bottom of rotor, and described upper magnetic ring is arranged in rotor cover.The position of upper magnetic ring and lower magnet ring is nearer; the repulsion produced is large; ensure rotor and impeller unsettled setting all the time; and upper magnetic ring be arranged in rotor cover, rotor cover make upper magnetic ring can not with physical contact between media, upper magnetic ring is played to the effect of protection; upper magnetic ring can not be damaged; remain high magnetic, good stability, long service life.
Above-mentioned without in shaft sealing recycle pump, described pump case comprises the pump housing and pump cover, the peripheral edge of described radome is along between the pump housing and pump cover, the described pump housing and pump cover are connected mutually by bolt and make radome be connected in pump case, seal ring is provided with between the described pump housing and pump cover, described water intake is positioned at one end of the pump housing, and described water outlet is positioned at the other end of the pump housing.The structure that radome is connected is simple, and firmness is high, the gap between the seal ring sealing pump housing and pump cover, good sealing effect.
Above-mentioned without in shaft sealing recycle pump, described lower magnet ring is coated with protecting jacket, and the outer circumferential of described protecting jacket is fixed with connecting ring, and the outside of described connecting ring embeds and is fixed between the pump housing and pump cover.Protecting jacket plays the effect of protection to lower magnet ring, make lower magnet ring can not with physical contact between media, lower magnet ring can not be damaged; remain high magnetic, long service life, and be connected between the pump housing and pump cover by connecting ring; the firmness be connected is high, can not deviation post.
Above-mentioned without in shaft sealing recycle pump, described upper magnetic ring and lower magnet ring are made by rare earth permanent-magnetic material.The use of rare earth permanent-magnetic material, improves the operational efficiency of complete machine, reduces complete machine energy consumption.
Above-mentioned without in shaft sealing recycle pump, described radome is made up through preservative treatment of stainless steel material.Radome can not be corroded, and avoids recycle pump latch-up phenomenon.
Above-mentioned without in shaft sealing recycle pump, described stator comprises silicon steel sheet and winding coil, and described silicon steel sheet and winding coil adopt the integrated poured technique of insulating resin to be connected.This kind of structure makes motor radiating performance good; under the limited conditions of stall (during energising the stuck stall of rotor), motor also can not burn; the simultaneously effective protective winding coil of insulating resin, makes that winding coil is anti-oxidant, anti-corrosion capacity strengthens, and improves the complete machine stability of recycle pump.
Compared with prior art, what the utility model provided has the following advantages without shaft sealing recycle pump:
1, this recycle pump is shaftless, by the effect of repelling each other of upper magnet and lower magnet, and the position-limiting action of supporting drum and ball, makes rotor and impeller remain at unsettled state, rotor and vane rotary smooth and easy, noise is little, good stability.
2, the ball of this recycle pump has superhigh strength and anti abrasive ceramic ball, during this pump operating cycle, rotor rises, the surrounding of rotor is lubricated by dielectric distance, ceramic ball supplemental support is spacing, get rid of the generation of bearing play, make this recycle pump remain on subsonic working state, noise is little, good stability.
3, the silicon steel sheet of this recycle pump and winding coil adopt insulating resin integrated poured shaping, and motor radiating performance is good, can bear the limited conditionss such as motor is stuck, stall, good stability.
4, the pump cover of this recycle pump adopts energy-conservation tubulose heat insulator to make, good heat dissipation effect; Radome, rotor cover, connecting cylinder, supporting drum and protecting jacket etc., all through preservative treatment, avoid the appearance of water pump latch-up phenomenon.
Accompanying drawing explanation
Fig. 1 is the overall structure sectional view of this nothing shaft sealing recycle pump.
Fig. 2 is the partial structurtes sectional view of this nothing shaft sealing recycle pump.
Fig. 3 is the overall structure schematic diagram that this nothing shaft sealing recycle pump shaft holds.
In figure, 1, water intake; 2, water outlet; 3, pump case; 31, the pump housing; 32, pump cover; 4, radome; 5, epicoele; 6, cavity of resorption; 7, stator; 71, silicon steel sheet; 72, winding coil; 8, rotor; 9, impeller; 10, upper magnetic ring; 11, lower magnet ring; 12, rotor cover; 13, gap one; 14, connecting cylinder; 141, abutment facing; 15, gap two; 16, supporting drum; 161, butting section; 17, ball; 18, bearing; 19, liquid bath is crossed; 20, stabilizing ring; 21, gap three; 22, bolt; 23, seal ring; 24, protecting jacket; 25, connecting ring.
Embodiment
Be below specific embodiment of the utility model and by reference to the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiments.
As shown in Figure 1 and Figure 2, this nothing shaft sealing recycle pump comprises pump case 3, radome 4, stator 7, rotor 8, impeller 9, upper magnetic ring 10, lower magnet ring 11 and positioning means.
Pump case 3 comprises the pump housing 31 and pump cover 32, radome 4 is made up through preservative treatment of stainless steel material, radome 4 is bowl-shape and bottom opening, the peripheral edge of radome 4 bottom opening is along between the pump housing 31 and pump cover 32, the pump housing 31 and pump cover 32 are connected mutually by bolt 22 and make radome 4 be connected in pump case 3, the inside of pump case 3 is divided into mutual disconnected epicoele 5 and cavity of resorption 6 up and down by radome 4, seal ring 23 is provided with between the pump housing 31 and pump cover 32, water intake 1 is positioned at one end of the pump housing 31, water outlet 2 is positioned at the other end of the pump housing 31, water intake 1 is all connected with cavity of resorption 6 with water outlet 2.
Stator 7 is connected in epicoele 5, and stator 7 comprises silicon steel sheet 71 and winding coil 72, and silicon steel sheet 71 and winding coil 72 adopt the integrated poured technique of insulating resin to be connected.
Rotor 8, impeller 9, upper magnetic ring 10, lower magnet ring 11 and positioning means are all arranged in cavity of resorption 6, and its rotor 8, rotor cover 12 and positioning means are arranged in radome 4.Upper magnetic ring 10 is positioned at the bottom of rotor 8, and the outer surface of rotor 8 is coated with rotor cover 12, and upper magnetic ring 10 is also arranged in rotor cover 12.
Be provided with connecting cylinder 14 between impeller 9 and rotor 8, the diameter at connecting cylinder 14 top is greater than the diameter bottom connecting cylinder 14, the madial wall of connecting cylinder 14 has abutment facing 141, and abutment facing 141 is positioned at connecting cylinder 14 middle vertically.Top and the rotor of connecting cylinder 14 overlap 12 and are connected mutually, and the top of connecting cylinder 14 is positioned at the inner side of rotor cover 12, and impeller 9 is connected in the bottom of connecting cylinder 14, and the bottom of connecting cylinder 14 is positioned at the medial center place of impeller 9.
Lower magnet ring 11 is coated with protecting jacket 24; the outer circumferential of protecting jacket 24 is fixed with connecting ring 25; the outside of connecting ring 25 embeds and is fixed between the pump housing 31 and pump cover 32; after the pump housing 31 is connected mutually with pump cover 32; protecting jacket 24 and lower magnet ring 11 are fixed in cavity of resorption 6; upper magnetic ring 10 and lower magnet ring 11 are made by rare earth permanent-magnetic material; upper magnetic ring 10 and lower magnet ring 11 homopolarity are oppositely arranged; the repulsion that upper magnetic ring 10 and lower magnet ring 11 produce is strong, and the repulsion that upper magnetic ring 10 and lower magnet ring 11 produce makes rotor 8, rotor cover 12, connecting cylinder 14 and impeller 9 have the trend moved up.
Positioning means comprises supporting drum 16, ball 17 and bearing 18, in the present embodiment, ball 17 has superhigh strength and anti abrasive ceramic ball, the top of supporting drum 16 is connected mutually with radome 4, the bottom of supporting drum 16 has the butting section 161 in enlarging shape, bearing 18 is arranged on abutment facing 141, the top of ball 17 is resisted against on the madial wall of butting section 161, the bottom of ball 17 is resisted against on bearing 18, as shown in Figure 3, the side that bearing 18 contacts with ball 17 is provided with six and crosses liquid bath 19, in actual production, the quantity crossing liquid bath 19 can be two or ten.Ball 17 projection is vertically positioned at the center of impeller 9, and positioning means plays spacing effect to rotor 8, impeller 9 and connecting cylinder 14, good stability when positioning means makes rotor 8, impeller 9 and connecting cylinder 14 rotate simultaneously.Upper magnetic ring 10, lower magnet ring 11 and positioning means acting in conjunction, make that rotor 8, impeller 9 and connecting cylinder 14 are unsettled to be arranged in cavity of resorption 6, has gap 1, have gap 2 15 between the bottom of impeller 9 and pump case 3 between rotor cover 12 and radome 4.In actual production, positioning means also can not comprise bearing 18, and the abutment facing 141 on connecting cylinder 14 madial wall can be made into arc, abutment facing 141 arranged liquid bath 19, and the bottom of ball 17 is directly resisted against on abutment facing 141.
The outside cover of connecting cylinder 14 has stabilizing ring 20, and stabilizing ring 20 is positioned at the inner side of lower magnet ring 11, has gap 3 21 between the outer circumferential wall of stabilizing ring 20 and the circumferential madial wall of lower magnet ring 11.
During this circulation air pump inoperative, the repulsion produced between upper magnetic ring 10 and lower magnet ring 11 makes rotor 8, connecting cylinder 14 and impeller 9 have the trend moved up, supporting drum 16 and ball 17 withstand on the center of connecting cylinder 14 and impeller 9, rotor 8, connecting cylinder 14 and impeller 9 are no longer moved up, thus makes that rotor 8, connecting cylinder 14 and impeller 9 are unsettled to be arranged in pump case 3; During the work of this recycle pump, the rotation of rotor 8 produces centripetal force upwards, make rotor 8, connecting cylinder 14 and impeller 9 have the larger trend moved up, because ball 17 is resisted against on bearing 18, bearing 18 is fixed in connecting cylinder 14, and ball 17 is positioned at the center of rotor 8, connecting cylinder 14 and impeller 9, ball 17 plays best location and spacing effect, and good stability when rotor 8, connecting cylinder 14 and impeller 9 rotate, can not offset, all the time be in vacant state, noise is little.
Specific embodiment described herein is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various amendment or supplements or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present utility model or surmount the scope that appended claims defines.
Although more employ water intake 1, water outlet 2, pump case 3, the pump housing 31, pump cover 32, radome 4, epicoele 5, cavity of resorption 6, stator 7, rotor 8, impeller 9, upper magnetic ring 10, lower magnet ring 11, rotor cover 12, gap 1, connecting cylinder 14, abutment facing 141, gap 2 15, supporting drum 16, butting section 161, ball 17, bearing 18 herein, cross the terms such as liquid bath 19, stabilizing ring 20, gap 3 21, bolt 22, seal ring 23, protecting jacket 24, connecting ring 25, do not get rid of the possibility using other term.These terms are used to be only used to describe and explain essence of the present utility model more easily; The restriction that they are construed to any one additional is all contrary with the utility model spirit.
Claims (10)
1. one kind without shaft sealing recycle pump, comprise the pump case (3) that bottom has water intake (1) and water outlet (2), it is characterized in that, radome (4) is provided with in described pump case (3), the inside of pump case (3) is divided into mutual disconnected epicoele (5) and cavity of resorption (6) up and down by described radome (4), described water intake (1) is all connected with cavity of resorption (6) with water outlet (2), stator (7) is fixed with in described epicoele (5), rotor (8) and impeller (9) is provided with in described cavity of resorption (6), described rotor (8) is connected mutually with impeller (9), described rotor (8) is fixed with upper magnetic ring (10), lower magnet ring (11) and positioning means is also fixed with in described cavity of resorption (6), described upper magnetic ring (10) and lower magnet ring (11) homopolarity are oppositely arranged, the top of described positioning means is connected mutually with radome (4), bottom is resisted against the center of impeller (9), make described rotor (8) and impeller (9) unsettled setting.
2. according to claim 1 without shaft sealing recycle pump, it is characterized in that, the outer surface of described rotor (8) is coated with rotor cover (12), between described rotor cover (12) and radome (4), there is gap one (13), connecting cylinder (14) is provided with between described impeller (9) and rotor (8), the top of described connecting cylinder (14) is connected mutually with rotor cover (12), described impeller (9) is connected in the bottom of connecting cylinder (14), between the bottom of described impeller (9) and pump case (3), there is gap two (15).
3. according to claim 2 without shaft sealing recycle pump, it is characterized in that, the diameter at described connecting cylinder (14) top is greater than the diameter of connecting cylinder (14) bottom, the madial wall of described connecting cylinder (14) has abutment facing (141), described abutment facing (141) is positioned at connecting cylinder (14) middle vertically.
4. according to claim 3 without shaft sealing recycle pump, it is characterized in that, described positioning means comprises supporting drum (16) and ball (17), the top of described supporting drum (16) is connected mutually with radome (4), the bottom of described supporting drum (16) has the butting section (161) in enlarging shape, described abutment facing (141) is curved, the top of described ball (17) is resisted against on the madial wall of butting section (161), the bottom of described ball (17) is resisted against on abutment facing (141), described ball (17) projection is vertically positioned at the center of impeller (9).
5. according to claim 3 without shaft sealing recycle pump, it is characterized in that, described positioning means comprises supporting drum (16), ball (17) and bearing (18), the top of described supporting drum (16) is connected mutually with radome (4), the bottom of described supporting drum (16) has the butting section (161) in enlarging shape, described bearing (18) is arranged on abutment facing (141), the top of described ball (17) is resisted against on the madial wall of butting section (161), the bottom of described ball (17) is resisted against on bearing (18), described ball (17) projection is vertically positioned at the center of impeller (9).
6. according to claim 5 without shaft sealing recycle pump, it is characterized in that, the side that described bearing (18) contacts with ball (17) is provided with some and crosses liquid bath (19), and described ball (17) is ceramic ball.
7. according to claim 2-6 any one without shaft sealing recycle pump, it is characterized in that, the outside cover of described connecting cylinder (14) has stabilizing ring (20), described stabilizing ring (20) is positioned at the inner side of lower magnet ring (11), has gap three (21) between the outer circumferential wall of described stabilizing ring (20) and the circumferential madial wall of lower magnet ring (11).
8. according to claim 2-6 any one without shaft sealing recycle pump, it is characterized in that, described upper magnetic ring (10) is positioned at the bottom of rotor (8), and described upper magnetic ring (10) is arranged in rotor cover (12).
9. according to claim 1-6 any one without shaft sealing recycle pump, it is characterized in that, described pump case (3) comprises the pump housing (31) and pump cover (32), the peripheral edge of described radome (4) is along being positioned between the pump housing (31) and pump cover (32), the described pump housing (31) and pump cover (32) are connected mutually by bolt (22) and make radome (4) be connected in pump case (3), seal ring (23) is provided with between the described pump housing (31) and pump cover (32), described water intake (1) is positioned at one end of the pump housing (31), described water outlet (2) is positioned at the other end of the pump housing (31).
10. according to claim 9 without shaft sealing recycle pump; it is characterized in that; described lower magnet ring (11) is coated with protecting jacket (24); the outer circumferential of described protecting jacket (24) is fixed with connecting ring (25), and the outside of described connecting ring (25) embeds and is fixed between the pump housing (31) and pump cover (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520539752.5U CN204851667U (en) | 2015-07-23 | 2015-07-23 | No shaft seal circulating pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520539752.5U CN204851667U (en) | 2015-07-23 | 2015-07-23 | No shaft seal circulating pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204851667U true CN204851667U (en) | 2015-12-09 |
Family
ID=54742221
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520539752.5U Expired - Fee Related CN204851667U (en) | 2015-07-23 | 2015-07-23 | No shaft seal circulating pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204851667U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104989656A (en) * | 2015-07-23 | 2015-10-21 | 浙江浪奇泵业有限公司 | Shaftless seal circulating pump |
-
2015
- 2015-07-23 CN CN201520539752.5U patent/CN204851667U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104989656A (en) * | 2015-07-23 | 2015-10-21 | 浙江浪奇泵业有限公司 | Shaftless seal circulating pump |
| CN104989656B (en) * | 2015-07-23 | 2017-12-26 | 浙江浪奇泵业有限公司 | Without sealing circulating pump |
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