CN203879760U - Canned pump for conveying medium prone to vaporization - Google Patents
Canned pump for conveying medium prone to vaporization Download PDFInfo
- Publication number
- CN203879760U CN203879760U CN201420232699.XU CN201420232699U CN203879760U CN 203879760 U CN203879760 U CN 203879760U CN 201420232699 U CN201420232699 U CN 201420232699U CN 203879760 U CN203879760 U CN 203879760U
- Authority
- CN
- China
- Prior art keywords
- medium
- pump housing
- pump
- auxiliary impeller
- vaporization
- 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 - Lifetime
Links
- 230000008016 vaporization Effects 0.000 title abstract description 6
- 238000009834 vaporization Methods 0.000 title abstract description 5
- 238000001816 cooling Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 125000004122 cyclic group Chemical group 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a canned pump for conveying a medium prone to vaporization. The canned pump comprises a pump body (1) and is characterized in that an auxiliary impeller (3) located in an auxiliary impeller cavity (2) is arranged in the pump body (1), a first medium circulating pipe (5) is arranged on a rear bearing body (4) of the pump body (1), the outlet end of the first medium circulating pipe (5) is communicated with an outlet cavity (6) of the pump body (1), and a second medium circulating pipe (7) is connected between the outlet cavity (6) and the auxiliary impeller cavity (2). The canned pump is simple in structure, ingenious in design, reasonable in layout, and capable of preventing part of the medium for cooling a motor structure of the pump body from being vaporized.
Description
Technical field
The utility model relates to a kind of canned motorpump, particularly a kind of canned motorpump of carrying easy vaporized media.
Background technique
In oil, chemical field, use at present without leakage shielding pump, in order to be motor and bearing cooling, simultaneously also for lubricating bearings, understand some medium and enter pump housing rear portion by the through hole in pump, and turn back in pump housing inner chamber, this part medium reciprocation cycle is to reach cooling and lubricated effect, but while working as carried medium for easy medium of vaporizing, when this part Absorption of Medium pump inner piece temperature and after heating up, be easy to vaporize, can cause like this damage of pump; Therefore need now a kind of Novel shield pump that can address the above problem.
Summary of the invention
The utility model is in order to solve the existing above-mentioned deficiency of prior art, proposes a kind of simple in structurely, designs ingeniously, rationally distributed, can prevent the canned motorpump into the part medium vaporization of pump housing electric machine structure cooling.
Technical solution of the present utility model is: a kind of canned motorpump of carrying easy vaporized media, comprise the pump housing 1, it is characterized in that: in the pump housing 1, be provided with the auxiliary impeller 3 that is positioned at auxiliary impeller cavity 2, rear bearing body 4 places at the pump housing 1 are provided with first medium Circulation pipe 5, the outlet end of first medium Circulation pipe 5 is communicated with the outlet plenum 6 of the pump housing 1, and is also connected with second medium Circulation pipe 7 between outlet plenum 6 and auxiliary impeller cavity 2.
Compared with the existing technology, tool has the following advantages the utility model:
The canned motorpump of the easy vaporized media of conveying of this kind of structural type, it is simple in structure, designs ingenious, rationally distributed.Existing canned motorpump is in use all positioned at pump body for the cooling medium circulation pipeline of motor part, heat cannot scatter and disappear, cause medium easily to vaporize, damage the situation of motor, for the problems referred to above, the medium circulation circuit design that the utility model is electric motor temperature reduction by this part is outside to the pump housing, absorbed like this dissipation of heat that the medium of heat can be carried in surrounding environment, after forming cryogenic media, come back to participation circulation in the pump housing, therefore can avoid occurring because excess Temperature causes the situation of medium vaporization.And its preparation process is simple, cheap for manufacturing cost, therefore can say that it has possessed multiple advantage, be particularly suitable for applying in the art, its market prospects are very wide.
Accompanying drawing explanation
Fig. 1 is the utility model embodiment's structural representation.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described.As shown in Figure 1: a kind of canned motorpump of carrying easy vaporized media, comprise the pump housing 1, in the pump housing 1, be provided with auxiliary impeller cavity 2, in auxiliary impeller cavity 2, be provided with the auxiliary impeller 3 driving by rotor, rear bearing body 4 places at the pump housing 1 are also provided with first medium Circulation pipe 5, the outlet end of this first medium Circulation pipe 5 is connected with the outlet plenum 6 of the pump housing 1, and is also connected with second medium Circulation pipe 7 between outlet plenum 6 and auxiliary impeller cavity 2.
The working procedure of the canned motorpump of the utility model embodiment's the easy vaporized media of conveying is as follows: this canned motorpump is when work, a large amount of media is discharged by outlet by outlet plenum 6 under the effect of main impeller, part medium enters auxiliary impeller cavity 2 by second medium Circulation pipe 7, and under the effect of the auxiliary impeller 3 in auxiliary impeller cavity 2, enter the gap between stator can and Rotor can, finally enter the chamber at rear bearing body 4 places of the pump housing 1, then this part medium can enter first medium Circulation pipe 5 and come back in auxiliary impeller cavity 2, in the process of the pump housing 1 work, all the time can according to the route of outlet plenum 6-auxiliary impeller cavity 2-rear bearing body 4-outlet plenum 6, carry out reciprocation cycle by some medium, in above-mentioned cyclic process, the heat of the interior motor part of the pump housing 1 is taken away, for motor is realized cooling, and because in this cyclic process, some carries out in the pump housing 1 outside, therefore the heat in this section medium can be dispersed in surrounding environment, prevent medium vaporization.
Claims (1)
1. a canned motorpump of carrying easy vaporized media, comprise the pump housing (1), it is characterized in that: in the pump housing (1), be provided with the auxiliary impeller (3) that is positioned at auxiliary impeller cavity (2), rear bearing body (4) at the pump housing (1) locates to be provided with first medium Circulation pipe (5), the outlet end of first medium Circulation pipe (5) is communicated with the outlet plenum (6) of the pump housing (1), and is also connected with second medium Circulation pipe (7) between outlet plenum (6) and auxiliary impeller cavity (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420232699.XU CN203879760U (en) | 2014-05-08 | 2014-05-08 | Canned pump for conveying medium prone to vaporization |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420232699.XU CN203879760U (en) | 2014-05-08 | 2014-05-08 | Canned pump for conveying medium prone to vaporization |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203879760U true CN203879760U (en) | 2014-10-15 |
Family
ID=51680263
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420232699.XU Expired - Lifetime CN203879760U (en) | 2014-05-08 | 2014-05-08 | Canned pump for conveying medium prone to vaporization |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203879760U (en) |
-
2014
- 2014-05-08 CN CN201420232699.XU patent/CN203879760U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141015 |