CN109185092A - A kind of heat preservation plunger type metering pump - Google Patents
A kind of heat preservation plunger type metering pump Download PDFInfo
- Publication number
- CN109185092A CN109185092A CN201811330667.2A CN201811330667A CN109185092A CN 109185092 A CN109185092 A CN 109185092A CN 201811330667 A CN201811330667 A CN 201811330667A CN 109185092 A CN109185092 A CN 109185092A
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- China
- Prior art keywords
- valve
- pump head
- group
- trap
- plunger
- 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.)
- Pending
Links
- 238000004321 preservation Methods 0.000 title claims abstract description 18
- 239000000945 filler Substances 0.000 claims abstract description 28
- 238000009413 insulation Methods 0.000 claims abstract description 24
- 230000000694 effects Effects 0.000 claims abstract description 21
- 239000011229 interlayer Substances 0.000 claims abstract description 21
- 230000008676 import Effects 0.000 claims abstract description 8
- 238000003466 welding Methods 0.000 claims abstract description 5
- 229920001973 fluoroelastomer Polymers 0.000 claims description 22
- 210000004907 gland Anatomy 0.000 claims description 15
- 238000012856 packing Methods 0.000 claims description 10
- 229920001971 elastomer Polymers 0.000 claims description 9
- QGHDLJAZIIFENW-UHFFFAOYSA-N 4-[1,1,1,3,3,3-hexafluoro-2-(4-hydroxy-3-prop-2-enylphenyl)propan-2-yl]-2-prop-2-enylphenol Chemical group C1=C(CC=C)C(O)=CC=C1C(C(F)(F)F)(C(F)(F)F)C1=CC=C(O)C(CC=C)=C1 QGHDLJAZIIFENW-UHFFFAOYSA-N 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 2
- 230000006835 compression Effects 0.000 claims 2
- 238000007906 compression Methods 0.000 claims 2
- 239000010410 layer Substances 0.000 claims 1
- 230000002093 peripheral effect Effects 0.000 claims 1
- 238000000926 separation method Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 2
- 229910052731 fluorine Inorganic materials 0.000 description 2
- 239000011737 fluorine Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005213 imbibition Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B13/00—Pumps specially modified to deliver fixed or variable measured quantities
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/08—Cooling; Heating; Preventing freezing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/10—Valves; Arrangement of valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/14—Pistons, piston-rods or piston-rod connections
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/22—Arrangements for enabling ready assembly or disassembly
Abstract
The invention discloses a kind of heat preservation plunger type metering pumps, including plunger, valve group group trap and pump head, pump head is tubular structure, cavity is set in pump head, the welding of pump head left end is provided with filler chamber, it is connected to inside filler chamber and pump head, plunger activity is equipped in filler chamber, valve group group trap is equipped in pump head, pump head right wall lower part is provided with and communicated with feed inlet, and pump head upper wall is provided with and communicated with discharge port, is equipped with insulating interlayer in pump head, insulating interlayer lower part is provided with and communicated with thermal insulation medium import, and insulating interlayer right upper portion is provided with and communicated with thermal insulation medium outlet；Valve group combination set upper side two sides, which are symmetrically embedded in, is provided with dismounting threaded hole, dismounts flexible connection on threaded hole and is provided with dismounting pull ring.Standard of the invention is simple, easy to disassemble to safeguard and damage components, while keeping the temperature stable and uniform in use, easy to use.
Description
Technical field
The present invention relates to plunger type metering pump, specifically a kind of heat preservation plunger type metering pump.
Background technique
The operation of plunger type metering pump is to move to complete by piston reciprocation.In this way, plunger is under the cooperation of check valve
Imbibition drain work can be completed, the stroke frequency working range of this pump is wide.Based on this principle, plunger type metering pump can be with
The medium that transport viscosity is big, temperature is high.
In the prior art, the terminal valve of plunger type metering pump is together with inlet and outlet flanged joint, when there is check valve
When needing to clean or replace, the pipeline valve pump inlet and outlet is needed all to remove, disassembly is inconvenient, heavy workload, maintenance
Difficulty, and in use, general heat preserving method heating effect is bad, and heating is uneven, thus in use there are
Limitation.
Summary of the invention
The purpose of the present invention is to provide a kind of heat preservation plunger type metering pumps, to solve mentioned above in the background art ask
Topic.
To achieve the above object, the invention provides the following technical scheme:
A kind of heat preservation plunger type metering pump, including plunger, valve group group trap and pump head, the pump head are tubular structure, the pump
Cavity is set in head, the pump head left end welding is provided with filler chamber, is connected to inside the filler chamber and the pump head, the plunger
Activity is equipped in filler chamber, and valve group group trap is equipped in the pump head, and the connection of pump head right wall lower part is set
It is equipped with feed inlet, the pump head upper wall is provided with and communicated with discharge port, insulating interlayer is equipped in the pump head, under the insulating interlayer
Portion is provided with and communicated with thermal insulation medium import, and the insulating interlayer right upper portion is provided with and communicated with thermal insulation medium outlet；The valve group
Combination set upper side two sides, which are symmetrically embedded in, is provided with dismounting threaded hole, is flexibly connected on the dismounting threaded hole and is provided with dismounting drawing
Ring.
As a further solution of the present invention: the plunger left end is connected with metering pump driving end, the filler chamber end
It is provided with clamp nut by being threadedly engaged flexible connection, the clamp nut is located at the plunger periphery, the filler chamber end
Inner wall is held to be equipped with groove, the socket of groove left end is provided with gland, airtight and watertight padding has been filled in the groove, described close
Packing material both ends are equipped with packing ring, and the packing ring is sheathed on the plunger periphery, the gland, the packing ring and institute
It states airtight and watertight padding to be slidably matched with the plunger, periphery is arranged with connector, the connector inside in the middle part of the filler chamber
It is compressed by being threadedly engaged fixed fastening nut cooperation with the filler chamber.
As a further solution of the present invention: cavity, which is set, in the valve group group trap and the pump head is slidably matched, it is described
It is connected on the left of valve group group trap with filler chamber's right end, the valve group group trap periphery upper, middle and lower portion is arranged with the respectively
Tetrafluoro rubber o-ring, the 5th fluororubber O shape circle and hexafluoro rubber o-ring, lower part assembly is provided with second in valve group group trap
Valve seat, second valve seat lower end periphery are arranged with third fluororubber O shape circle, the third fluororubber O shape circle and the valve group
Group trap inner wall activity fitting setting, the fitting of second valve seat upper end are provided with the second valve ball, the valve group group trap middle part
Installation settings has the second valve limitation set, and the second valve limitation set is fixed in the middle part of the valve group group trap, and described second
The middle part perforation setting of valve limitation set, the second valve limitation set periphery are arranged with the second fluororubber O shape circle, second fluorubber
O-ring and valve group group trap inner wall activity fitting setting, the valve group group trap inner wall are located at second valve limitation set
Top assembly is provided with the first valve seat, and the fitting of first valve seat upper end is provided with the first valve ball, in the valve group group trap on
Portion's assembly is provided with the first valve limitation set, and the first valve limitation set periphery is arranged with the first fluororubber O shape circle, first fluorine
Rubber o-ring and valve group group trap inner wall activity fitting setting, valve group combination set upper side is by being threadedly engaged activity
It is connected with valve group gland, valve group gland lower end and first valve limitation set upper side compress fitting.
As a further solution of the present invention: the insulating interlayer is that the section in the pump head side wall is " u "-shaped
Cavity, the thermal insulation medium outlet are connected to through the pump head side wall with the insulating interlayer, and the thermal insulation medium import runs through
The pump head side wall is connected to the insulating interlayer.
As a further solution of the present invention: the dismounting pull ring and the dismounting threaded hole are by being threadedly engaged activity even
It connects.
As a further solution of the present invention: the feed inlet is connected to second valve seat lower part, the discharge port with
The connection of first valve seat top.
Compared with prior art, the beneficial effects of the present invention are: plunger is reciprocal under the drive of metering pump driving end when using
Movement forms negative pressure, the second valve ball moves upwards, at this time in external pressure when plunger moves downward above the second valve ball
Under effect, the first valve ball blocks downwards the first valve seat, and medium is entered by feed inlet；When plunger moves right, the second valve ball
The second valve seat is blocked downwards, medium jacks up the first valve ball upwards, so that medium is discharged by discharge port；In the flow process of medium
In, thermal insulation medium is imported by thermal insulation medium import, thermal insulation medium, which is constantly injected and exported from thermal insulation medium, to be discharged, thus not
Reach excellent keeping warm mode in disconnected thermal insulation medium circulation；In assembly, after opening valve group gland, dismounting pull ring is passed through into spiral shell
Line is cooperatively connected on dismounting threaded hole, is taken valve group group trap from pump head by dismounting pull ring and the cooperation for dismounting threaded hole
Out, valve group combination cover upper each section connector can activity remove, such design is more convenient for safeguarding and be repaired, and is not required to
Pipeline valve is dismounted, does not damage and destroy part, device performance is more stable, effectively improves service life.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram for keeping the temperature plunger type metering pump.
Fig. 2 is a kind of schematic cross-sectional view for keeping the temperature pump head in plunger type metering pump.
Fig. 3 is the structural schematic diagram of the amplification of B area in pump head shown in Fig. 2.
Fig. 4 is a kind of structural schematic diagram for keeping the temperature and dismounting pull ring in plunger type metering pump.
In figure: 1- plunger, 2- clamp nut, 3- gland, 4- packing ring, 5- airtight and watertight padding, 6- fastening nut, 7- valve
Group gland, the first fluororubber O-type ring of 8-, the first valve of 9- limitation set, the first valve ball of 10-, the first valve seat of 11-, the second fluorubber of 12-
O-ring, the second valve of 13- limitation set, the second valve ball of 14-, the second valve seat of 15-, 16- valve group group trap, 17- insulating interlayer, 18- the
Three fluororubber O-type rings, 19- connector, 20- pump head, 21- feed inlet, 22- discharge port, the outlet of 23- thermal insulation medium, 24- heat preservation are situated between
Matter import, 25- dismount threaded hole, and 26- dismounts pull ring, the 4th fluororubber O-type ring of 27-, the 5th fluororubber O-type ring of 28-, 29- the
Hexafluoro rubber o-ring.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Embodiment 1
Referring to Fig. 1, in the embodiment of the present invention, a kind of heat preservation plunger type metering pump, including plunger 1 and pump head 20, the pump head
20 be tubular structure, and cavity is set in the pump head 20, and 20 left end of the pump head welding is provided with filler chamber, the filler chamber and institute
It states and is connected to inside pump head 20,1 activity of plunger is equipped in filler chamber, 1 left end of plunger and metering pump driving end
It is connected, the filler chamber end is provided with clamp nut 2 by being threadedly engaged flexible connection, and the clamp nut 2 is located at described
1 periphery of plunger, filler chamber's inner wall at end are equipped with groove, and the socket of groove left end is provided with gland 3, fills out in the groove
It fills and is provided with airtight and watertight padding 5,5 both ends of airtight and watertight padding are equipped with packing ring 4, and the packing ring 4 is sheathed on outside the plunger 1
It encloses, the gland 3, the packing ring 4 and the airtight and watertight padding 5 are slidably matched with the plunger 1, in the filler chamber
Portion periphery is arranged with connector 19, and 19 inside of connector is by being threadedly engaged fixed fastening nut 6 with the filler chamber
Cooperation compresses.
It is equipped with valve group group trap 16 in the pump head 20, sets sky in the valve group group trap 16 and the pump head 20
Chamber is slidably matched, and 16 left side of valve group group trap is connected with filler chamber's right end, placed outside the valve group group trap 16,
In, lower part be arranged with tetrafluoro rubber o-ring 27, the 5th fluororubber O shape circle 28 and hexafluoro rubber o-ring 29, valve group respectively
Lower part assembly is provided with the second valve seat 15 in group trap 16, and the 15 lower end periphery of the second valve seat is arranged with third fluororubber O shape
Circle 18, the third fluororubber O shape circle 18 and the 16 inner wall activity of valve group group trap fitting are arranged, on second valve seat 15
End fitting is provided with the second valve ball 14, and the 16 middle part installation settings of valve group group trap has the limitation of the second valve to cover 13, described second
Valve limitation set 13 is fixed on 16 middle part of valve group group trap, and the 13 middle part perforation setting of the second valve limitation set is described
Second valve limitation set, 13 peripheries are arranged with the second fluororubber O shape circle 12, the second fluororubber O shape circle 12 and valve group combination
16 inner wall activities fitting setting is covered, 16 inner wall of valve group group trap is located at second valve limitation set, 13 top assembly and is provided with
First valve seat 11,11 upper end of the first valve seat fitting are provided with the first valve ball 10,16 internal upper part of the valve group group trap assembly
It is provided with the first valve limitation set 9,9 peripheries of the first valve limitation set are arranged with the first fluororubber O shape circle 8, the first fluorine rubber
Glue O-ring 8 and the 16 inner wall activity of valve group group trap fitting setting, 16 upper end of valve group group trap is by being threadedly engaged work
Dynamic to be connected with valve group gland 7,7 lower end of valve group gland and first valve limitation set, 9 upper ends compress fitting.
The 20 right wall lower part of pump head is provided with and communicated with feed inlet 21, and 20 upper wall of pump head is provided with and communicated with discharge port
22, the feed inlet 21 is connected to 15 lower part of the second valve seat, and the discharge port 22 is connected to 11 top of the first valve seat.
Embodiment 2
Please refer to Fig. 2~4, in the embodiment of the present invention, a kind of heat preservation plunger type metering pump, on the basis of embodiment 1, the pump
Insulating interlayer 17 is equipped in first 20, the insulating interlayer 17 is that the section in 20 side wall of pump head is " u "-shaped cavity, institute
It states 17 right upper portion of insulating interlayer and is provided with and communicated with thermal insulation medium outlet 23,17 lower part of insulating interlayer is provided with and communicated with heat preservation
Medium entrance 24, the thermal insulation medium outlet 23 are connected to through 20 side wall of pump head with the insulating interlayer 17, the heat preservation
Medium entrance 24 is connected to through 20 side wall of pump head with the insulating interlayer 17.
The 16 upper end two sides of valve group group trap, which are symmetrically embedded in, is provided with dismounting threaded hole 25, on the dismounting threaded hole 25
Flexible connection is provided with dismounting pull ring 26, the dismounting pull ring 26 and the dismounting threaded hole 25 by being threadedly engaged activity even
It connects.
The working principle of the invention is: when use plunger 1 retractable driving device drive under move back and forth, when plunger 1 to
When left movement, negative pressure is formed above the second valve ball 14, the second valve ball 14 moves upwards, at this time under external pressure effect, the
One valve ball 10 blocks downwards the first valve seat 11, and medium is entered by feed inlet 21；When plunger 1 moves right, the second valve ball 14
The second valve seat 15 is blocked downwards, medium jacks up the first valve ball 10 upwards, so that medium is discharged by discharge port 22；In the stream of medium
During dynamic, thermal insulation medium is imported by thermal insulation medium import 24, thermal insulation medium constantly injects and exports 23 rows from thermal insulation medium
Out, to reach excellent keeping warm mode in continuous thermal insulation medium circulation；In assembly, after opening valve group gland 7, it will tear open
Dress pull ring 26 is connected on dismounting threaded hole 25 by being threadedly engaged, will with the cooperation for dismounting threaded hole 25 by dismounting pull ring 26
Valve group group trap 16 is taken out from pump head 20, each section connector in valve group group trap 16 can activity remove, it is such
Design is more convenient for safeguarding and be repaired, and does not need dismounting pipeline valve, does not damage and destroy part, and device performance is more stable,
Effectively improve service life.
The standardized element that the present invention uses can commercially, and shaped piece is according to specification and attached drawing note
Load can carry out customized, and the specific connection type of each part is all made of in the prior art mature bolt, rivet, welding etc.
Conventional means, mechanical, part and equipment are all made of in the prior art, conventional model, in addition circuit connection uses the prior art
Middle conventional connection type, this will not be detailed here.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims
Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (7)
1. a kind of heat preservation plunger type metering pump, including plunger (1), valve group group trap (16) and pump head (20), the pump head (20)
For tubular structure, the pump head (20) is interior to set cavity, is equipped with valve group group trap (16), the pump in the pump head (20)
Head (20) right wall lower part is provided with and communicated with feed inlet (21), and pump head (20) upper wall is provided with and communicated with discharge port (22), special
Sign is that pump head (20) the left end welding is provided with filler chamber, is connected to inside the filler chamber and the pump head (20), described
Plunger (1) activity is equipped in filler chamber, is equipped with insulating interlayer (17) in the pump head (20), the insulating interlayer (17)
Lower part is provided with and communicated with thermal insulation medium import (24), and insulating interlayer (17) right upper portion is provided with and communicated with thermal insulation medium outlet
(23)；Valve group group trap (16) the upper end two sides, which are symmetrically embedded in, is provided with dismounting threaded hole (25), the dismounting threaded hole
(25) it is flexibly connected on and is provided with dismounting pull ring (26).
2. a kind of heat preservation plunger type metering pump according to claim 1, which is characterized in that plunger (1) left end and meter
It measures pump drive end to be connected, the filler chamber end is provided with clamp nut (2) by being threadedly engaged flexible connection, the compression spiral shell
Female (2) are located at the plunger (1) periphery, and filler chamber's inner wall at end is equipped with groove, and the socket of groove left end is provided with filler pressure
It covers (3), has been filled with airtight and watertight padding (5) in the groove, airtight and watertight padding (5) both ends are equipped with packing ring (4), described to fill out
Material ring (4) is sheathed on the plunger (1) periphery, and the gland (3), the packing ring (4) and the airtight and watertight padding (5) are equal
It is slidably matched with the plunger (1), periphery is arranged with connector (19) in the middle part of the filler chamber, logical on the inside of the connector (19)
It crosses and is threadedly engaged fixed fastening nut (6) cooperation compression with the filler chamber.
3. a kind of heat preservation plunger type metering pump according to claim 1, which is characterized in that the valve group group trap (16) and
Cavity is set in the pump head (20) to be slidably matched, and is connected on the left of the valve group group trap (16) with filler chamber's right end, institute
It states valve group group trap (16) peripheral upper, middle and lower portion and is arranged with tetrafluoro rubber o-ring (27), the 5th fluororubber O shape circle respectively
(28) it is provided with the second valve seat (15) with hexafluoro rubber o-ring (29), the interior lower part assembly of valve group group trap (16), described second
Valve seat (15) lower end periphery is arranged with third fluororubber O shape circle (18), the third fluororubber O shape circle (18) and the valve group group
Trap (16) inner wall activity fitting setting, the second valve seat (15) upper end fitting are provided with the second valve ball (14), the valve group
Installation settings has the second valve limitation set (13) in the middle part of group trap (16), and the second valve limitation set (13) is fixed on the valve
In the middle part of group group trap (16), perforation setting in the middle part of the second valve limitation set (13), the second valve limitation set (13) periphery set
Equipped with the second fluororubber O shape circle (12), the second fluororubber O shape circle (12) and valve group group trap (16) inner wall activity patch
Setting is closed, valve group group trap (16) inner wall is located at assembly above second valve limitation set (13) and is provided with the first valve seat
(11), the first valve seat (11) upper end fitting is provided with the first valve ball (10), valve group group trap (16) the internal upper part assembly
It is provided with the first valve limitation set (9), first valve limitation set (9) periphery is arranged with the first fluororubber O shape circle (8), and described the
One fluororubber O shape circle (8) and valve group group trap (16) inner wall activity fitting setting.
4. a kind of heat preservation plunger type metering pump according to claim 3, which is characterized in that the feed inlet (21) and described
The connection of second valve seat (15) lower part, the discharge port (22) are connected to the first valve seat (11) top.
5. a kind of heat preservation plunger type metering pump according to claim 3, which is characterized in that on the valve group group trap (16)
End is provided with valve group gland (7) by being threadedly engaged flexible connection, valve group gland (7) lower end and first valve limitation set
(9) upper end compresses fitting.
6. a kind of heat preservation plunger type metering pump according to claim 1, which is characterized in that the insulating interlayer (17) is position
It is " u "-shaped cavity in the section in the pump head (20) side wall, the thermal insulation medium outlet (23) runs through the pump head (20) side
Wall is connected to the insulating interlayer (17), and the thermal insulation medium import (24) runs through the pump head (20) side wall and the thermal insulation separation
Layer (17) connection.
7. a kind of heat preservation plunger type metering pump according to claim 1, which is characterized in that the dismounting pull ring (26) and institute
Dismounting threaded hole (25) is stated by being threadedly engaged flexible connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811330667.2A CN109185092A (en) | 2018-11-09 | 2018-11-09 | A kind of heat preservation plunger type metering pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811330667.2A CN109185092A (en) | 2018-11-09 | 2018-11-09 | A kind of heat preservation plunger type metering pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109185092A true CN109185092A (en) | 2019-01-11 |
Family
ID=64938788
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811330667.2A Pending CN109185092A (en) | 2018-11-09 | 2018-11-09 | A kind of heat preservation plunger type metering pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109185092A (en) |
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