CN208348001U - A kind of No leakage plunger metering pump - Google Patents
A kind of No leakage plunger metering pump Download PDFInfo
- Publication number
- CN208348001U CN208348001U CN201820883224.5U CN201820883224U CN208348001U CN 208348001 U CN208348001 U CN 208348001U CN 201820883224 U CN201820883224 U CN 201820883224U CN 208348001 U CN208348001 U CN 208348001U
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- China
- Prior art keywords
- plunger
- combination sealing
- gland
- metering pump
- leakage
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Abstract
The utility model relates to a kind of No leakage plunger metering pump, including liquid cylinder, sliding eyes, plunger, plunger bushing, gland, be characterized in that: plunger is threaded onto plunger bushing, first of combination sealing, second combination sealing, gland, and plunger tip protrudes into the sliding eye；The gland is equipped with gland nut；First of combination sealing and second combination sealing includes filler and spacer ring, and pressure warning unit is equipped between first of combination sealing and second combination sealing.The utility model has the beneficial effects that the utility model greatly reduces the cost of equipment, product quality is improved, structure is simple, securely and reliably, strong applicability changes complicated product structure, and this structure can also be promoted in other reciprocating pump products, and space is had a vast market.
Description
Technical field
The utility model relates to a kind of metering pumps, are specifically related to a kind of No leakage plunger metering pump.
Background technique
Metering pump is made of power end, fluid end, driving motor.Fluid end is divided into plunger type according to the difference of pumped (conveying) medium
And diaphragm type.Plunger metering pump structure is simple, measuring accuracy is high, easy to operate, and low cost is applied widely, especially in superelevation
It is highly reliable when pressure, but safety is bad when conveying special media.Structure is complicated for diaphragm metering pump, and measuring accuracy is low, operation
Difficulty, cost is high, but safety is good when conveying special media.In conclusion if medium leakage does not occur for plunger pump, so that it may real
Existing plunger pump replaces diaphragm pump, that, all can be benefited a great deal either to manufacturer and user.
Summary of the invention
In order to make up above-mentioned plunger pump the deficiencies in the prior art, the purpose of this utility model is to propose a kind of No leakage plunger
Metering pump, including liquid cylinder, sliding eye, plunger, plunger bushing, gland are characterized in that: plunger is threaded onto plunger lining
Set, first of combination sealing, second combination sealing, gland, plunger tip protrude into the sliding eye；The filler pressure
It covers and is equipped with gland nut；First of combination sealing and second combination sealing includes filler and spacer ring, and
Pressure warning unit is equipped between one of combination sealing and second combination sealing.
Further, the warning device is observation type warning device, the report that can be observed including pressure gauge etc.
Alert equipment.
Further, the warning device can also be for can be with the pressure switch of transmitting switch signal.
Further, the warning device is the warning device that automatic shutdown function can be achieved.
The utility model has the beneficial effects that the utility model greatly reduces the cost of equipment, product quality is improved, is tied
Structure is simple, and securely and reliably, strong applicability changes complicated product structure, and this structure can also be promoted other reciprocal
It pumps in product, has a vast market space.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
The title of each components in Fig. 1 are as follows: liquid cylinder 1, sliding eye 2, flow channels 3, plunger 4, gland 5, discharge
Valve group 6 sucks valve group 7, first of combination sealing 8, second combination sealing 9, filler 10, spacer ring 11, warning device 12, pressure
Table 13, plunger bushing 14, plunger bushing nut 15.
Specific embodiment
See Fig. 1, the specific structure of the present embodiment is as follows, and a kind of No leakage plunger metering pump, liquid cylinder 1 was equipped with circulation
Road 3, sliding eye 2, the both ends of circulation road 3 be respectively equipped with discharge valve group 6 and sucking valve group 7, plunger 4 be threaded onto plunger bushing 14,
First of combination sealing 8, second combination sealing 9, gland 5,4 end of plunger is protruded into the sliding eye 2, and and twice
Seal assembly and sliding eye 2 are slidably matched；The gland 5 is equipped with gland nut 15；The other end of plunger 4 is used for
Connect the power end of metering pump；First of combination sealing 8 and second combination sealing 9 includes filler 10 and spacer ring
11, pressure warning unit 12 is equipped between first of combination sealing 8 and second combination sealing 9；The warning device 12 is
Pressure gauge 13.
Working principle of the utility model is: the sealing shape being made of two groups of high pressure combination sealings and a set of pressure warning unit
Formula works well in practical applications, in the case where sealing not impaired situation, pumps as zero leakage, pacifies between two groups of combination sealings
A set of pressure warning unit is filled, warning device can be ordinarily manometer, if bad seals, pressure gauge will show pressure,
This is observation type warning device, and structure is simple, cheap；Warning device can also be pressure switch form, and pressure switch can
With transmitting switch signal, the number of converting to is wired to DCS or middle control, it can be achieved that Remote seal faiture alarm and the functions such as chain；Pressure
Power warning device can also be chain with pump motor, when first group of bad seals, pump will by linkage effect autostop, second
Group sealing still keeps sealing function, plays the role of the function of duplicate protection, is equivalent to the second diaphragm of twin-diaphragm pump.
Claims (4)
1. a kind of No leakage plunger metering pump, including liquid cylinder, sliding eye, plunger, plunger bushing, gland, it is characterized in that:
Plunger is threaded onto plunger bushing, first of combination sealing, second combination sealing, gland, and plunger tip protrudes into the cunning
In dynamic hole；The gland is equipped with gland nut；First of combination sealing and second combination sealing is equal
Including filler and spacer ring, pressure warning unit is equipped between first of combination sealing and second combination sealing.
2. a kind of No leakage plunger metering pump according to claim 1, it is characterized in that: the pressure warning unit is to see
Type warning device is examined, the warning device that can be observed including pressure gauge.
3. a kind of No leakage plunger metering pump according to claim 1, it is characterized in that: the pressure warning unit is can be with
The pressure switch of transmitting switch signal.
4. a kind of No leakage plunger metering pump according to claim 1, it is characterized in that: the pressure warning unit is can be real
The warning device of existing automatic shutdown function.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820883224.5U CN208348001U (en) | 2018-06-08 | 2018-06-08 | A kind of No leakage plunger metering pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820883224.5U CN208348001U (en) | 2018-06-08 | 2018-06-08 | A kind of No leakage plunger metering pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208348001U true CN208348001U (en) | 2019-01-08 |
Family
ID=64882743
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820883224.5U Active CN208348001U (en) | 2018-06-08 | 2018-06-08 | A kind of No leakage plunger metering pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208348001U (en) |
-
2018
- 2018-06-08 CN CN201820883224.5U patent/CN208348001U/en active Active
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