CN201416549Y - Single-stage chemical pump - Google Patents
Single-stage chemical pump Download PDFInfo
- Publication number
- CN201416549Y CN201416549Y CN200920076433XU CN200920076433U CN201416549Y CN 201416549 Y CN201416549 Y CN 201416549Y CN 200920076433X U CN200920076433X U CN 200920076433XU CN 200920076433 U CN200920076433 U CN 200920076433U CN 201416549 Y CN201416549 Y CN 201416549Y
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- CN
- China
- Prior art keywords
- pump
- cover
- cooling liquid
- coolant
- end cover
- 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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Abstract
The utility model relates to a single-stage chemical pump, comprising a pump body, an impeller, a back pump cover, a sealing end cover, a middle frame, a suspension bracket and a support, wherein theleft end of the back pump cover is provided with an oil seal, and the inner part of the suspension bracket is provided with a pump shaft by a bearing. The utility model is characterized in that a pumpshaft in a sealing cavity between the back pump cover and the sealing end cover is provided with a left mechanical seal and a right mechanical seal, and an excircle arranged between the left mechanical seal and the right mechanical seal is provided with a machine sealing gear ring of a skew tooth. The back pump cover and the sealing end cover are respectively provided with an inside thread hole which is communicated with the inner part of the sealing cavity and is used for installing an infusion tube, and the suspension bracket is provided with a cooling liquid tank by the support. One side wall of the cooling liquid tank is provided with a cooling liquid inlet tube and a cooling liquid outlet tube the outer ends of which are provided with inside threads. The inside thread hole for installing the infusion tube on the back pump cover and the cooling liquid inlet tube on one side wall of the cooling liquid tank are respectively in threaded connection with the end parts of two ends of one infusion tube, and the inside thread hole for installing the infusion tube on the sealing end cover and the cooling liquid outlet tube on one side wall of the cooling liquid tank are respectively inthreaded connection with the end parts of two ends of the other infusion tube. The single-stage chemical pump can be suitable for transporting acid, alkali and other high-temperature media.
Description
Technical field:
The utility model relates to a kind of centrifugal pump, particularly relates to a kind of single-stage chemical pump.
Background technique:
Centrifugal pump is widely used in all trades and professions, particularly almost is indispensable a kind of equipment in transfusion system.Pump case maintains static because the pump shaft of centrifugal pump rotates, must have the existence of certain interval in the contacting point of pump shaft and pump case, spill along the gap for fear of pump inner high voltage liquid, or prevent that ambient air from entering in the pump the other way around, single gland seal device is set usually, but, when carrying high temperature media, it is too high and damage that gland seal device is easy to Yin Wendu, in order to prevent the damage of gland seal device, often need again the washing solution device of outer tape splicing recycle pump, thereby make the device structure complexity, the maintenance difficulty.In addition, when the pipe-line system of pump dallied because of a variety of causes, the high temperature that is produced also can make gland seal device burn out very soon, also will cause the breaking-up of pump when serious.
Summary of the invention:
The purpose of this utility model is that a kind of improved single-stage chemical pump will be provided, and it has not only strengthened gland seal device, and can also effectively prevent the generation of gland seal device burnout phenomenon, simultaneously, has ensured that all the time the working properly of pump carries out.
In order to realize that above-mentioned purpose the utility model proposes following design proposal: single-stage chemical pump of the present utility model comprises the pump housing, impeller, the rear pump cover of left end band oil sealing, end cover, middle frame, interior suspension body and the support that is equipped with pump shaft by bearing, pump shaft place in the Seal cage between described rear pump cover and the end cover is provided with a left side, right mechanical seal, a described left side, be provided with the machine envelope gear ring that has helical teeth on the cylindrical between the right mechanical seal, described rear pump cover, be respectively equipped with on the end cover one with described rear pump cover and end cover between Seal cage in the interior threaded hole of the installation indusion tube that communicates, be provided with a tank for coolant by bearing on the described suspension body, one sidewall of described tank for coolant is provided with the tapped cooling liquid in outer end and advances, outer pipe, cooling liquid inlet pipe place on the interior threaded hole place of the installation indusion tube on the described rear pump cover and described tank for coolant one sidewall is fixed with end, the two ends formation scyewed joint of an indusion tube respectively, and the coolant outlet place on the interior threaded hole place of the installation indusion tube on the described end cover and described tank for coolant one sidewall is fixed with end, the two ends formation scyewed joint of another indusion tube respectively.
Because the utility model has improved existing single-stage chemical pump, and make and form Seal cage in the chamber between described rear pump cover and the end cover, be provided with described double mechanical seal in the pump shaft place in the Seal cage between described rear pump cover and end cover, in the middle of described double mechanical seal and set up the machine envelope gear ring that has helical teeth on the cylindrical again, also make the Seal cage between described rear pump cover and the end cover be connected with a described tank for coolant by indusion tube, and formation loop, all the time be full of circulating cooling liquid in the described Seal cage, when the pipe-line system of carrying high temperature media or pump dallies because of a variety of causes, single-stage chemical pump of the present utility model still can rely on cooling liquid self-loopa cooling effect, keep normal operation and do not damage mechanical seal, and soon the axle envelope is burnt out during general chemical pump idle running, single-stage chemical pump of the present utility model can move under-25 ℃～120 ℃ high temperature medias, after adopting to described tank for coolant cooling measure, medium temperature more can be increased to 250 ℃, the axle envelope adopts described double mechanical seal structure, not only strengthen the reliability of mechanical seal but also be suitable for pumping the liquid that contains partial impurities, can effectively prolong the working life of single-stage chemical pump of the present utility model.Single-stage chemical pump of the present utility model is simple and practical, installs, dismounting is all more convenient, also helps maintenance.
Description of drawings:
Concrete structure of the present utility model is provided by following embodiment and accompanying drawing thereof.
Fig. 1 is the schematic representation of single-stage chemical pump of the present utility model.
Fig. 2 is the partial structurtes schematic representation of single-stage chemical pump of the present utility model.
Fig. 3 is the schematic representation of the machine envelope gear ring of single-stage chemical pump of the present utility model.
Fig. 4 is the cross-sectional schematic of the machine envelope gear ring of single-stage chemical pump of the present utility model.
Embodiment:
Below with reference to accompanying drawing single-stage chemical pump of the present utility model is described in further detail.
With reference to Fig. 1, Fig. 2, Fig. 3 and Fig. 4, the single-stage chemical pump of this model utility includes rear pump cover 3, end cover 4, middle frame 5, the interior suspension body 7 and the support 8 that is equipped with pump shaft 6 by bearing of the pump housing 1, impeller 2, left end band oil sealing.
Be set with left and right mechanical seal 9,10 in pump shaft 6 places in the Seal cage between described rear pump cover 3 and the end cover 4, be set with machine envelope gear ring 11 between the described left and right mechanical seal 9,10, be evenly equipped with helical teeth on the cylindrical of described machine envelope gear ring 11, all be equipped with an interior threaded hole 12,13 that indusion tube is installed on described rear pump cover 3, the end cover 4, the interior threaded hole 12,13 of the installation indusion tube on described rear pump cover 3, the end cover 4 respectively with described rear pump cover 3 and end cover 4 between Seal cage in communicate.
By bearing 14 tank for coolant 15 is installed on the described suspension body 7, being equipped with cooling liquid on one sidewall of described tank for coolant 15 advances, outer pipe 16,17, cooling liquid on described tank for coolant 15 1 sidewalls is advanced, outer pipe 16,17 outer end is respectively equipped with an internal thread, interior threaded hole 12 places of the installation indusion tube on the described rear pump cover 3 and cooling liquid inlet pipe 16 places on described tank for coolant 15 1 sidewalls are fixed with end, the two ends formation scyewed joint of an indusion tube 18 respectively, and interior threaded hole 13 places of the installation indusion tube on the described end cover 4 and coolant outlet 17 places on described tank for coolant 15 1 sidewalls are fixed with end, the two ends formation scyewed joint of another indusion tube 19 respectively.
The use of single-stage chemical pump of the present utility model, described impeller 2 is installed in the described pump housing 1, and be fastened on the end of described pump shaft 6, the other end of described pump shaft 6 borrows coupling to be connected with motor, described pump shaft 6 is directly driven by motor, the commentaries on classics distance of motor is passed to described impeller 2, before pump startup, must fill the liquid that is transferred in the described pump housing 1, after the startup, described impeller 2 drives high speed rotating by described pump shaft 6, when described impeller 2 quick rotation, the very fast rotation of liquid that blade impels the axial liquid entering hole from the pump housing 1 to enter, the liquid that is rotating flies to from described impeller 2 under action of centrifugal force, after being dished out by the liquid outlet radially from the pump housing 1 with higher liquid in the described pump housing 1, delivering to by pipeline needs the place, after liquid in the described pump housing 1 is dished out, the core of described impeller 2 promptly forms vacuum area, by the bottom valve of drawing liquid body in storage tank by pipeline the more axial liquid entering hole from the pump housing 1 enter in the described pump housing 1, go round and begin again like this, just can realize continuous drawing liquid.
Meanwhile; when pump work; machine envelope gear ring 11 in the Seal cage between described rear pump cover 3 and the end cover 4 is because of the described mechanical seal 9 in two ends; 10 press; will be along with described pump shaft 6 rotates together; because of having a plurality of helical teeth on described machine envelope gear ring 11 cylindricals; when being full of cooling liquid in the Seal cage; can form pressure difference in described machine envelope gear ring 11 both ends of the surface; and then the liquid circulation that drives in the described tank for coolant 15 flows; thereby the cooling liquid of higher temperature in the Seal cage is flow in the tank for coolant 15 by interior threaded hole 12 places of the installation indusion tube on the described rear pump cover 3 and the indusion tube 18 between cooling liquid inlet pipe 16 places on described tank for coolant 15 1 sidewalls; cooling liquid after the cooling interior threaded hole 13 of the installation indusion tube from the described end cover 4 and another indusion tube 19 between coolant outlet 17 places on described tank for coolant 15 1 sidewalls again flows in Seal cages; rely on the self-loopa cooling effect of cooling liquid, realize protection mechanical seal 9; 10 and machine envelope gear ring 11.
Also can adopt water-cooled, air-cooled or other cooling measures to described tank for coolant 15, make the cooling liquid in the tank for coolant 15 further realize temperature drop.
Single-stage chemical pump of the present utility model has high temperature resistant, and the characteristics of acid and alkali-resistance can not only adapt to height Work under the temperature environment, and increase the service life.
Claims (1)
1, a kind of single-stage chemical pump, it comprises the pump housing (1), impeller (2), the rear pump cover (3) of left end band oil sealing, end cover (4), middle frame (5), interior suspension body (7) and the support (8) that is equipped with pump shaft (6) by bearing, it is characterized in that the pump shaft (6) in the Seal cage between described rear pump cover (3) and the end cover (4) locates to be provided with a left side, right mechanical seal (9), (10), a described left side, right mechanical seal (9), (10) be provided with the machine envelope gear ring (11) that has helical teeth on the cylindrical between, described rear pump cover (3), be respectively equipped with on the end cover (4) one with described rear pump cover (3) and end cover (4) between Seal cage in the interior threaded hole (12) of the installation indusion tube that communicates, (13), described suspension body (7) is gone up and is provided with a tank for coolant (15) by bearing (14), one sidewall of described tank for coolant (15) is provided with the tapped cooling liquid in outer end and advances, outer pipe (16), (17), the interior threaded hole (12) of the installation indusion tube on the described rear pump cover (3) locate with described tank for coolant (15) one sidewalls on cooling liquid inlet pipe (16) locate respectively end, two ends with an indusion tube (18) and form scyewed joint and fix, the interior threaded hole (13) of the installation indusion tube on the described end cover (4) locate with described tank for coolant (15) one sidewalls on coolant outlet (17) locate respectively end, two ends with another indusion tube (19) and form scyewed joint and fix.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920076433XU CN201416549Y (en) | 2009-06-17 | 2009-06-17 | Single-stage chemical pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920076433XU CN201416549Y (en) | 2009-06-17 | 2009-06-17 | Single-stage chemical pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201416549Y true CN201416549Y (en) | 2010-03-03 |
Family
ID=41792966
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920076433XU Expired - Fee Related CN201416549Y (en) | 2009-06-17 | 2009-06-17 | Single-stage chemical pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201416549Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108361204A (en) * | 2018-04-25 | 2018-08-03 | 丹东晟辉石化设备有限公司 | It is anti-to evacuate anti-granular pattern magnetic drive pump |
-
2009
- 2009-06-17 CN CN200920076433XU patent/CN201416549Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108361204A (en) * | 2018-04-25 | 2018-08-03 | 丹东晟辉石化设备有限公司 | It is anti-to evacuate anti-granular pattern magnetic drive pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100303 Termination date: 20140617 |
|
| EXPY | Termination of patent right or utility model |