CN203051149U - Phthalic anhydride dedicated pump - Google Patents
Phthalic anhydride dedicated pump Download PDFInfo
- Publication number
- CN203051149U CN203051149U CN 201220605735 CN201220605735U CN203051149U CN 203051149 U CN203051149 U CN 203051149U CN 201220605735 CN201220605735 CN 201220605735 CN 201220605735 U CN201220605735 U CN 201220605735U CN 203051149 U CN203051149 U CN 203051149U
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- CN
- China
- Prior art keywords
- pump
- phthalic anhydride
- cover
- dedicated
- center shaft
- 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 discloses a phthalic anhydride dedicated pump, which solves the problem that crystalline phenomenon of the phthalic anhydride is generated in a pump cavity and ensures the reliable running of a pump. The phthalic anhydride dedicated pump comprises a center shaft and a rotor component, wherein the center shaft is connected with a driving motor, the rotor component is sleeved on the center shaft, a pump body and a pump cover are arranged along two sides of the rotor component of the center shaft, the outer side of the pump cover is provided with a shaft sealing device and a sealing end cover along the center shaft, and a hollow cavity through which heat preservation medium can get in and out is arranged surrounding an inlet end of the pump body. According to the phthalic anhydride dedicated pump disclosed by the utility model, all-around heat preservation design improvement is carried out, key parts such as the pump body, the pump cover and the sealing end cover are all subjected to heat preservation design, steam or hot water heat preservation is ensured to be carried out at the place where the pump cavity is in contact with the atmosphere to the maximum, the crystalline phenomenon of the phthalic anhydride is prevented from generating in the pump cavity, and the reliable running of the pump is ensured.
Description
Technical field
The utility model relates to the technical field of pump, particularly a kind of phthalic anhydride dedicated pump.
Background technique
Pump is a kind of machine that changes the pressure of volume inner fluid or carry fluid.In the production of chemical industry and petroleum industry department, raw material, semi-finished product and finished product are liquid mostly, and raw material is made semi-finished product and finished product, and needing through complicated manufacturing process, pump plays the effect of carrying liquid and the chemical reaction pressure flow being provided in these processes.But fluid will keep certain temperature in manufacturing process sometimes, but has heat loss in the process with pump conveying fluid.
China phthalic anhydride industry production enterprise is numerous, but the greatest problem that faces in benzoic anhydride producing process is the physical property of phthalic anhydride self, phthalic anhydride is lower than 130 ° of C in temperature just has crystallization to separate out, therefore how guarantee phthalic anhydride non-crystallizable in liquid course of conveying be key subject, carry out the steam pipe coil insulation by the shell to centrifugal pump in early days, but effect is undesirable, still there are a large amount of phthalic anhydride crystals to hoard in the phthalic anhydride flow passage components in the pump, we had carried out the integral solder insulation jacket to pump housing outer surface afterwards, but effect still is not obvious especially, because phthalic anhydride self is toxic, do not allow to leak in the atmosphere, therefore the mechanical seal position to phthalic anhydride has proposed very high requirement too.
The model utility content
The utility model provides a kind of phthalic anhydride dedicated pump, has solved phthalic anhydride and produce crystalline polamer in pump chamber, and guaranteed the reliable operation of pump.
The technical solution of the utility model is achieved in that a kind of phthalic anhydride dedicated pump, comprise the central shaft that is connected in drive motor and the rotor part that is set on the central shaft, be provided with the pump housing and pump cover along central shaft rotor part both sides, the pump cover outside is provided with shaft sealer and end cover along central shaft, is provided with the pump housing incubation cavity that passes in and out for thermal insulation medium around pump housing entrance point.
Described pump cover also is provided with the pump cover incubation cavity for the thermal insulation medium turnover.
Described end cover also is provided with the end cover incubation cavity for the thermal insulation medium turnover.
Described thermal insulation medium is hot water or steam.
The utility model does not produce crystallization in order to ensure any position of phthalic anhydride in pump chamber, having carried out omnibearing INSULATION DESIGN improves, its key position pump housing, pump cover, end cover are all carried out INSULATION DESIGN, guarantee that the place that pump chamber contacts with atmosphere as much as possible carries out steam or hot water thermal insulating, so just avoid phthalic anhydride in pump chamber, to produce crystalline polamer, and guaranteed the reliable operation of pump.
Description of drawings
Fig. 1 the utility model generalized section.
Embodiment
Below in conjunction with the accompanying drawing among the utility model embodiment, the technological scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiments.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment who obtains under the creative work prerequisite, all belong to the scope of the utility model protection.
As shown in Figure 1, present embodiment provides a kind of phthalic anhydride dedicated pump, comprise the central shaft 1 that is connected in drive motor and the rotor part that is set on the central shaft, be provided with the pump housing 3 and pump cover 4 along central shaft rotor part both sides, pump cover 4 outsides are provided with shaft sealer 5 and end cover 6 along central shaft 1, are provided with the pump housing incubation cavity 7 that passes in and out for thermal insulation medium around pump housing entrance point.Rotor part comprises that cover loads onto impeller 2 on the central shaft 1.Cavity is provided with inlet and the exhaust port for the thermal insulation medium turnover.
Pump cover 4 also is provided with the pump cover incubation cavity 8 of thermal insulation medium turnover.
End cover 6 also arranges the end cover incubation cavity 9 for the thermal insulation medium turnover.
Thermal insulation medium is hot water or steam.
During concrete enforcement, the steam of hot water or high temperature, high pressure is injected from the cavity inlet, hot water flows in cavity, like this, the hot water that constantly pours in or high temperature and high pressure steam will constantly heat to the pump housing, make the temperature of the pump housing in cavity, to be provided with exhaust port as remaining on more than the temperature of liquid phthalic anhydride crystallization eventually, the hot water that has circulated can automatically be discharged outside the phthalic anhydride pump housing.Like this, when the phthalic anhydride pump with the phthalic anhydride of liquid state in the impeller suction pump housing because the temperature of the pump housing is higher than the solidification point of phthalic anhydride all the time, that is to say that can remain phthalic anhydride in liquid delivery tube is in liquid non-crystallizable.Seal arrangement has been avoided the leakage problem of phthalic anhydride, and also is provided with incubation cavity in end cap and end cover, and heat insulation effect is further enhanced.
The above only is preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (4)
1. phthalic anhydride dedicated pump, comprise the central shaft that is connected in drive motor and the rotor part that is set on the central shaft, be provided with the pump housing and pump cover along central shaft rotor part both sides, the pump cover outside is provided with shaft sealer and end cover along central shaft, it is characterized in that: the pump housing incubation cavity that passes in and out for thermal insulation medium is set around pump housing entrance point.
2. phthalic anhydride dedicated pump according to claim 1 is characterized in that: described pump cover also is provided with the pump cover incubation cavity for the thermal insulation medium turnover.
3. according to the described phthalic anhydride dedicated pump of claim 1, it is characterized in that: described end cover also is provided with the end cover incubation cavity for the thermal insulation medium turnover.
4. according to each described phthalic anhydride dedicated pump of claim 1～3, it is characterized in that: described thermal insulation medium is hot water or steam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220605735 CN203051149U (en) | 2012-11-15 | 2012-11-15 | Phthalic anhydride dedicated pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220605735 CN203051149U (en) | 2012-11-15 | 2012-11-15 | Phthalic anhydride dedicated pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203051149U true CN203051149U (en) | 2013-07-10 |
Family
ID=48734107
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220605735 Expired - Fee Related CN203051149U (en) | 2012-11-15 | 2012-11-15 | Phthalic anhydride dedicated pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203051149U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103696990A (en) * | 2013-11-25 | 2014-04-02 | 江苏江大泵业制造有限公司 | Full-jacket heating pump |
-
2012
- 2012-11-15 CN CN 201220605735 patent/CN203051149U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103696990A (en) * | 2013-11-25 | 2014-04-02 | 江苏江大泵业制造有限公司 | Full-jacket heating 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: 20130710 Termination date: 20141115 |
|
| EXPY | Termination of patent right or utility model |