CN202144774U - Plunger metering pump suitable for conveying easily-polymerized medium - Google Patents
Plunger metering pump suitable for conveying easily-polymerized medium Download PDFInfo
- Publication number
- CN202144774U CN202144774U CN201120256248U CN201120256248U CN202144774U CN 202144774 U CN202144774 U CN 202144774U CN 201120256248 U CN201120256248 U CN 201120256248U CN 201120256248 U CN201120256248 U CN 201120256248U CN 202144774 U CN202144774 U CN 202144774U
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- China
- Prior art keywords
- metering pump
- ball valve
- chamber
- liquid
- valve
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- Expired - Lifetime
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Abstract
The utility model relates to a plunger metering pump suitable for conveying easily-polymerized medium, wherein a liquid suction chamber (4) and a liquid discharge chamber (7) are arranged on one side of a pump cylinder (3), and a piston (1) and a crankshaft mechanism (2) controlling the piston (1) to reciprocate are arranged on the other side thereof; and a liquid suction ball valve (5) and a liquid discharge ball valve (6) are mounted between the liquid suction chamber (4) and the liquid discharge chamber (7) respectively, and both the liquid suction ball valve (5) and the liquid discharge ball valve (6) are stainless steel valve balls. The plunger metering pump is suitable for conveying easily-polymerized liquid medium, can avoid polymerization accident of the to-be-conveyed medium as other materials backflow, and enables the metering pump to have high efficiency in conveying materials and be more accurate in metering.
Description
Technical field
The utility model relates to a kind of metering pump, is the plunger metering pump that a kind of suitable conveying is prone to polymerisation medium specifically, is the improvement to existing plunger metering pump, and it is suitable for being prone to polymeric liquid and carries and accurate measurement.
Background technique
The plunger metering pump main structure: imbibition chamber, discharge opeing chamber, piston, pumping cylinder, crosshead, connecting rod, bent axle are formed.In chemical industry, metering pump far surpasses centrifugal pump in small flow, advantage aspect high-lift, and has suction capacity, accurate measurement during as metering pump.
The valve ball (ball) of the import and export valve face that former plunger metering pump adopts is to use the porcelain ball; Valve seat is a stainless steel, in use, and when being prone to polymeric liquid; Just will repair because of valve seat is worn in general 20 days, each repairing will be changed an accessory to be had: valve seat, valve ball, various pad.The repairing frequency is big, consumption thing consuming time.
Summary of the invention
The purpose of the utility model provides the plunger metering pump that a kind of suitable conveying is prone to polymerisation medium; It is applicable to carry and is prone to the polymeric liquid medium; Avoided unclassified stores to flow backwards and caused the generation of fed sheet of a media polymerization accident, made metering pump efficient when conveying material high simultaneously, it is more accurate to measure.
The suitable conveying that the utility model provides is prone to the plunger metering pump of polymerisation medium; One side of pumping cylinder is imbibition chamber and discharge opeing chamber; Opposite side is piston and the reciprocating crank mechanism of control piston; Between pumping cylinder and imbibition chamber and discharge opeing chamber, be separately installed with imbibition ball valve and discharge opeing ball valve, described imbibition ball valve and discharge opeing ball valve are the stainless steel valve ball.
Beneficial effect:
Avoided that the pump discharge material flows backwards, the efficient of pump reduces even the accident of pump depletion takes place because of cause in valve ball and valve base chamber space; Reduced the maintenance frequency of pump; Long service life can not repaired because of the prooving of valve seat, not only can reduce maintenance expenses but also can save manpower.
Description of drawings
Fig. 1 is the structural drawing of the utility model.
Embodiment
With reference to Fig. 1; A kind of suitable conveying is prone to the plunger metering pump of polymerisation medium; One side of pumping cylinder 3 is imbibition chamber 4 and discharge opeing chamber 7; Opposite side is the reciprocating crank mechanism 2 of piston 1 and control piston 1, between pumping cylinder 3 and imbibition chamber 4 and discharge opeing chamber 7, is separately installed with imbibition ball valve 5 and discharge opeing ball valve 6, and described imbibition ball valve 5 is the stainless steel valve ball with discharge opeing ball valve 6.
During work, when crank mechanism drive piston 1 past right motion, pumping cylinder 3 forms negative pressure, and 4 process imbibition ball valves 5 get into pumping cylinders 3 to liquid through the imbibition chamber; When crank mechanism 2 drive pistons 1 past left movement, liquid are extruded through discharge opeing ball valve 6 to discharge opeing chamber 7 in the pumping cylinder 3.
Especially when carrying easy polymerisation medium such as ethylene oxide, avoided unclassified stores to flow backwards and caused the generation of fed sheet of a media polymerization accident, made metering pump efficient when conveying material high simultaneously, it is more accurate to measure.
Claims (1)
1. one kind is fit to carry the plunger metering pump that is prone to polymerisation medium; It is characterized in that; One side of pumping cylinder (3) is imbibition chamber (4) and discharge opeing chamber (7); Opposite side is the reciprocating crank mechanism (2) of piston (1) and control piston (1), between pumping cylinder (3) and imbibition chamber (4) and discharge opeing chamber (7), is separately installed with imbibition ball valve (5) and discharge opeing ball valve (6), and described imbibition ball valve (5) and discharge opeing ball valve (6) are the stainless steel valve ball.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120256248U CN202144774U (en) | 2011-07-20 | 2011-07-20 | Plunger metering pump suitable for conveying easily-polymerized medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120256248U CN202144774U (en) | 2011-07-20 | 2011-07-20 | Plunger metering pump suitable for conveying easily-polymerized medium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202144774U true CN202144774U (en) | 2012-02-15 |
Family
ID=45580705
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120256248U Expired - Lifetime CN202144774U (en) | 2011-07-20 | 2011-07-20 | Plunger metering pump suitable for conveying easily-polymerized medium |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202144774U (en) |
-
2011
- 2011-07-20 CN CN201120256248U patent/CN202144774U/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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120215 |