CN207762010U - A kind of hot water circuit canned motor pump - Google Patents
A kind of hot water circuit canned motor pump Download PDFInfo
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- CN207762010U CN207762010U CN201820034727.5U CN201820034727U CN207762010U CN 207762010 U CN207762010 U CN 207762010U CN 201820034727 U CN201820034727 U CN 201820034727U CN 207762010 U CN207762010 U CN 207762010U
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- runner
- baffle ring
- pump
- arcwall
- drainage lumens
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Abstract
The utility model discloses a kind of hot water circuit canned motor pumps, it is constant to be intended to provide a kind of intake-outlet pressure difference, canned motor pump simple in structure and highly practical, its key points of the technical solution are that pump head is equipped with water inlet and water outlet, interior circulation waterway is equipped in casing, interior circulation waterway includes drainage lumens, the hollow duct being set in pump shaft and the pressure regulation sphere being set in hollow duct, the side of drainage lumens is connected to water outlet, the other side of drainage lumens is connected with hollow duct, the other side that hollow duct is connected to side with drainage lumens is connected with water inlet, casing side is equipped with plug compatible with drainage lumens, ratio between the axial length of pump shaft and the diameter of impeller is between 1.1 1.2, the utility model is suitable for hot water circuit wall hanging furnace accessory technical field.
Description
Technical field
The utility model is related to a kind of hot water circuit wall hanging furnace accessory technical fields, more specifically, it relates to a kind of heat
Water circulation shield pump.
Background technology
The driving of Ordinary Centrifugal Pumps is that the impeller axle of pump is connected with electronic axle by shaft coupling, makes impeller and motor
It rotates and works together, and canned motor pump is a kind of unprssurized pump, pump and driving motor are all sealed in a pumped medium and fill
In full pressure vessel, this pressure vessel only has static seal, and provides rotating excitation field by an electric wire group and drive rotor.This
Kind structure eliminates the sealing device for rotary shaft that conventional centrifugal pump has, therefore can accomplish complete No leakage.
Currently, hot water circuit canned motor pump in the market, it includes pump head, the impeller that is placed in pump head, is connect with impeller
Pump shaft, for driving the pump shaft motor rotated, the casing that is placed on outside motor and is connect with pump head and being set to connecing outside pump head
Wire box.Traditional canned motor pump can form interior circulation waterway because of the pressure difference between intake-outlet, and this part effect is desirable
By controlling and adjusting the progress of the range between the axial length of pump shaft and the diameter of impeller, also, traditional canned motor pump
When water is carried out at row in pump, the remaining water in pump can be sprayed, influence to use because there are overbottom pressure in pump.
Utility model content
In view of the deficienciess of the prior art, the purpose of this utility model is to provide a kind of intake-outlet pressure difference is constant,
Canned motor pump simple in structure and highly practical.
To achieve the above object, the utility model provides following technical solution：A kind of hot water circuit canned motor pump, including pump
Head, be placed in pump head impeller, connect with impeller pump shaft, for drive pump shaft rotation motor, be placed on outside motor and with pump
The casing of head connection and the terminal box being set to outside pump head, the pump head are equipped with water inlet and water outlet, are equipped in casing
Interior circulation waterway, interior circulation waterway includes drainage lumens, the hollow duct that is set in pump shaft and is set in hollow duct
The side of pressure regulation sphere, the drainage lumens is connected to water outlet, and the other side of drainage lumens is connected with hollow duct, hollow duct
The other side that side is connected to drainage lumens is connected with water inlet, and the casing side is equipped with plug compatible with drainage lumens,
Ratio between the axial length of the pump shaft and the diameter of impeller is between 1.1-1.2.
The utility model is further arranged to：The hollow duct includes sequentially connected runner A, runner B and stream
Road C, the pressure regulation sphere is placed in runner C, and the outer diameter of pressure regulation sphere is adapted with the internal diameter of runner C, and the internal diameter of runner B is big
It is more than the internal diameter of runner B in the internal diameter of the internal diameter of runner A, runner C, and connecting passage is additionally provided between runner C and runner B, even
The internal diameter for connecing runner is gradually increased from runner B toward the directions runner C.
The utility model is further arranged to：The water inlet includes outer flow passage and inner flow passage, outer flow passage and inner flow passage
Between be equipped with arcwall A and arcwall B, inner flow passage be equipped with arcwall C, arcwall A and arcwall C homonymies and with arcwall B
Heteropleural, arcwall A and arcwall B are in outer male structure, and arcwall C is in concave inward structure.
The utility model is further arranged to：The inner wall of the water outlet is in concave inward structure, and water outlet includes input terminal
And output end, and the internal diameter of water outlet gradually increases from input terminal toward output end.
The utility model is further arranged to：The pump head, which is equipped with, places annular groove, places annular groove and is equipped with baffle ring,
Baffle ring includes baffle ring A and baffle ring B, and impeller is equipped with baffle ring C, and baffle ring A is contradicted with the inner wall for placing annular groove, and baffle ring C is terminated in
Between baffle ring A and baffle ring B, and the internal diameter of baffle ring C is adapted with the outer diameter of baffle ring B.
By using above-mentioned technical proposal, advantageous effect：（1）Because the formation of interior circulation waterway is by water inlet and to go out
Pressure difference between the mouth of a river, and controlled by the rotation of impeller and the axial length of pump shaft when the pressure difference of this part
System, therefore by the ratio between the axial length of pump shaft and the diameter of impeller between 1.1-1.2 so that the interior recirculated water of formation
There is no gaps on road, improve the continuity of interior circulation waterway, improve lubrication and cooling effect；
（2）The structure setting of hollow duct, it is ensured that interior circulation waterway reduces impact to a certain extent in pump shaft part, carries
The continuity of circulation waterway in height, and the pressure regulation sphere being arranged in hollow duct, it is ensured that in air exercise booting shell side
Plug, to when remaining water is discharged in pumping, it is therefore prevented that flow is sprayed because of overbottom pressure；
（3）The structure setting of pump head water outlet and water inlet, it is ensured that the pressure difference of formation ensures in constant range
The continuity of interior circulation waterway improves lubrication and cooling effect；
（4）Pump head, which is equipped with, places annular groove, places annular groove and is equipped with baffle ring, improves impeller and have when rotated well
Self-priming effect.
Description of the drawings
Fig. 1 is the schematic cross-sectional view of a kind of hot water circuit canned motor pump of the utility model and its operating method embodiment.
Reference numeral in figure, 1- pump heads, 10- water inlets, 101- arcwalls A, 102- arcwall B, 103- arcwall C, 11-
Water outlet, 12- place annular groove, 13- baffle rings, 130- baffle rings A, 131- baffle ring B, 2- pump shaft, 20- drainage lumens, 21- hollow flows
Road, 210- runners A, 211- runner B, 212- runner C, 213- connecting passage, 22- pressure regulation spheres, 3- impellers, 30- baffle rings C, 4-
Casing, 5- plugs.
Specific implementation mode
A kind of hot water circuit canned motor pump embodiment of the utility model is described further referring to Fig.1.
A kind of hot water circuit canned motor pump, including pump head 1, be placed in pump head 1 impeller 3, connect with impeller 3 pump shaft 2, use
In the motor, the casing 4 for being placed on outside motor and being connect with pump head 1 and the wiring being set to outside pump head 1 that drive the rotation of pump shaft 2
Box, the structure of the motor is formed by stator, rotor and the housing that is set between stator and rotor, on pump head 1
Equipped with water inlet 10 and water outlet 11, interior circulation waterway is equipped in casing 4, the interior circulation waterway of formation improves in right casing 4
The lubrication in portion and the effect of cooling, interior circulation waterway includes drainage lumens 20, the hollow duct 21 that is set in pump shaft 2 and setting
It is connected to water outlet 11 in the side of the pressure regulation sphere 22 in hollow duct 21, drainage lumens 20, the other side of drainage lumens 20 is in
Empty runner 21 is connected, and the other side that hollow duct 21 is connected to side with drainage lumens 20 is connected with water inlet 11,4 side of casing
Equipped with plug 5 compatible with drainage lumens 20, pass through the pressure regulation sphere 22 being arranged in hollow duct 21, it is ensured that opening
The plug 5 of 4 side of casing, to when remaining water is discharged in pumping, it is therefore prevented that flow is sprayed because of overbottom pressure, and the axial direction of pump shaft 2 is long
It spends the ratio between the diameter of impeller 3 between 1.1-1.2, because canned motor pump has different sizes, but the axis of pump shaft 2
It can ensure to the ratio between length and the diameter of impeller 3 constant, the factor that the axial length of pump shaft 2 influences is interior
The effective distance of circulation waterway, the factor that the diameter of impeller 3 influences are into and out the pressure difference that can be formed at the mouth of a river, therefore above-mentioned
Ratio is arranged, and the pressure difference of intake-outlet, which is in, can form interior circulation waterway and ensure constant state, it is ensured that interior recirculated water
The continuity on road improves lubrication and cooling effect.
The utility model is further arranged to, hollow duct 21 include sequentially connected runner A210, runner B211 and
Runner C212, pressure regulation sphere 22 are placed in runner C212, and the outer diameter of pressure regulation sphere 22 is adapted with the internal diameter of runner C212, stream
The internal diameter of road B211 is more than the internal diameter of runner A210, and the internal diameter of runner C212 is more than the internal diameter of runner B211, and runner C212 and
Connecting passage 213 is additionally provided between runner B211, the internal diameter of connecting passage 213 is gradually increased from runner B211 toward the directions runner C212
Greatly, the structure setting of hollow duct 21, it is ensured that interior circulation waterway reduces impact to a certain extent in pump shaft part, is followed in raising
The continuity in ring water route, and the pressure regulation sphere 22 being arranged in hollow duct 21, it is ensured that in the stifled of 4 side of air exercise booting shell
First 5, to when remaining water is discharged in pumping, it is therefore prevented that flow is sprayed because of overbottom pressure.
The utility model is further arranged to, and water inlet 10 includes outer flow passage and inner flow passage, between outer flow passage and inner flow passage
Equipped with arcwall A101 and arcwall B102, inner flow passage is equipped with arcwall C103, arcwall A101 and arcwall C103 homonymies
And with arcwall B102 heteropleurals, arcwall A101 and arcwall B102 are in outer male structure, and arcwall C103 is in concave inward structure, is gone out
The inner wall at the mouth of a river 11 be in concave inward structure, water outlet 11 include input terminal and output end, and the internal diameter of water outlet 11 from input terminal toward
Output end gradually increases, the structure setting of 1 water outlet of pump head and water inlet, it is ensured that the pressure difference of formation in constant range, into
And ensure that the continuity of interior circulation waterway, improve lubrication and cooling effect.
The utility model is further arranged to, and pump head 1, which is equipped with, places annular groove 12, places annular groove 12 and is equipped with baffle ring
13, baffle ring 13 includes baffle ring A130 and baffle ring B131, and impeller 3 is equipped with baffle ring C30, baffle ring A130 and placement annular groove 12
Inner wall contradicts, and baffle ring C30 is terminated between baffle ring A130 and baffle ring B131, and the outer diameter phase of the internal diameter of baffle ring C30 and baffle ring B131
Adaptation, pump head 1 be equipped with place annular groove 12, place annular groove 12 be equipped with baffle ring 13, improve impeller 3 have when rotated it is good
Good self-priming effect.
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, the skill of this field
Art personnel carry out common variations and alternatives within the scope of technical solutions of the utility model should be included in the guarantor of the utility model
It protects in range.
Claims (5)
1. a kind of hot water circuit canned motor pump, including pump head（1）, be placed in pump head（1）Interior impeller（3）With impeller（3）The pump of connection
Axis（2）, for driving pump shaft（2）The motor of rotation is placed on motor outside and and pump head（1）The casing of connection（4）And it is set to
Pump head（1）Outer terminal box, it is characterized in that：The pump head（1）It is equipped with water inlet（10）And water outlet（11）, casing（4）It is interior
Equipped with interior circulation waterway, interior circulation waterway includes drainage lumens（20）And it is set to pump shaft（2）Interior hollow duct（21）, hollow
Runner（21）It is interior to be equipped with pressure regulation sphere（22）, the drainage lumens（20）Side and water outlet（11）Connection, drainage lumens（20）'s
The other side and hollow duct（21）It is connected, hollow duct（21）With drainage lumens（20）It is connected to the other side and the water inlet of side
（10）It is connected, the casing（4）Side is equipped with and drainage lumens（20）Compatible plug（5）, the pump shaft（2）Axial direction it is long
Degree and impeller（3）Diameter between ratio between 1.1-1.2.
2. a kind of hot water circuit canned motor pump according to claim 1, it is characterized in that：The hollow duct（21）Including successively
The runner A of connection（210）, runner B（211）And runner C（212）, the pressure regulation sphere（22）It is placed in runner C（212）It is interior, and
Pressure regulation sphere（22）Outer diameter and runner C（212）Internal diameter be adapted, runner B（211）Internal diameter be more than runner A（210）It is interior
Diameter, runner C（212）Internal diameter be more than runner B（211）Internal diameter, and runner C（212）With runner B（211）Between the company of being additionally provided with
Connect runner（213）, connecting passage（213）Internal diameter by runner B（211）Toward runner C（212）Direction gradually increases.
3. a kind of hot water circuit canned motor pump according to claim 1 or 2, it is characterized in that：The water inlet（10）Including outer
Runner and inner flow passage are equipped with arcwall A between outer flow passage and inner flow passage（101）With arcwall B（102）, inner flow passage is equipped with arc
Shape wall C（103）, arcwall A（101）With arcwall C（103）Homonymy and with arcwall B（102）Heteropleural, arcwall A（101）With
Arcwall B（102）It is in outer male structure, arcwall C（103）In concave inward structure.
4. a kind of hot water circuit canned motor pump according to claim 1 or 2, it is characterized in that：The water outlet（11）Inner wall
In concave inward structure, water outlet（11）Including input terminal and output end, and water outlet（11）Internal diameter from input terminal toward output end by
It is cumulative big.
5. a kind of hot water circuit canned motor pump according to claim 1, it is characterized in that：The pump head（1）It is equipped with and places ring
Slot（12）, place annular groove（12）It is equipped with baffle ring（13）, baffle ring（13）Including baffle ring A（130）And baffle ring B（131）, leaf
Wheel（3）It is equipped with baffle ring C（30）, baffle ring A（130）With placement annular groove（12）Inner wall contradict, baffle ring C（30）Terminate in baffle ring A
（130）With baffle ring B（131）Between, and baffle ring C（30）Internal diameter and baffle ring B（131）Outer diameter be adapted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820034727.5U CN207762010U (en) | 2018-01-09 | 2018-01-09 | A kind of hot water circuit canned motor pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820034727.5U CN207762010U (en) | 2018-01-09 | 2018-01-09 | A kind of hot water circuit canned motor pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207762010U true CN207762010U (en) | 2018-08-24 |
Family
ID=63183425
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820034727.5U Active CN207762010U (en) | 2018-01-09 | 2018-01-09 | A kind of hot water circuit canned motor pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207762010U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107917084A (en) * | 2018-01-09 | 2018-04-17 | 大福泵业有限公司 | A kind of hot water circuit canned motor pump and its operating method |
-
2018
- 2018-01-09 CN CN201820034727.5U patent/CN207762010U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107917084A (en) * | 2018-01-09 | 2018-04-17 | 大福泵业有限公司 | A kind of hot water circuit canned motor pump and its operating method |
| CN107917084B (en) * | 2018-01-09 | 2019-06-14 | 大福泵业有限公司 | A kind of operating method of hot water circuit canned motor pump |
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