CN207761928U - Hydraulic end of plunger pump structure with multi-sealed effect - Google Patents
Hydraulic end of plunger pump structure with multi-sealed effect Download PDFInfo
- Publication number
- CN207761928U CN207761928U CN201820018688.XU CN201820018688U CN207761928U CN 207761928 U CN207761928 U CN 207761928U CN 201820018688 U CN201820018688 U CN 201820018688U CN 207761928 U CN207761928 U CN 207761928U
- Authority
- CN
- China
- Prior art keywords
- plunger
- stuffing
- box
- valve group
- pump head
- 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
Links
Landscapes
- Details Of Reciprocating Pumps (AREA)
Abstract
The utility model is related to a kind of hydraulic end of plunger pump structures with multi-sealed effect, including pump head and babinet, plunger channel is provided in babinet, plunger is movably set in plunger channel, stuffing-box is set around plunger, stuffing-box and plunger composition friction are secondary, primary seal is provided between stuffing-box and plunger, exhaust chamber is provided in pump head, drain valve group, feed liquor valve group and admission chamber, the reciprocating motion of plunger drives feed liquor valve group or drain valve group to open and close, realize the reciprocation cycle into drain, secondary seal is additionally provided between stuffing-box and plunger, the return flow line for being back to admission chamber is drawn in position between secondary seal and primary seal.Compared with prior art, the utility model uses return flow line, i.e., the medium of leakage is drained into admission chamber, and as medium further rises into pump head, it is provided with sealing ring and secondary seal on rear side of return flow line simultaneously, can ensure that admission chamber will not drain to the external world by return flow line completely.
Description
Technical field
The utility model is related to a kind of hydraulic end of plunger pump structures, more particularly, to a kind of column with multi-sealed effect
Fill in pump hydraulic end structure.
Background technology
For plunger pump by driving end and fluid end to form, driving end is to couple driving motor and by bent axle, connecting rod, cross
First-class part passes to the component of fluid end kinetic energy, and fluid end is mainly the pressure-raising process for realizing medium, it is ensured that the pressure of medium
Power and flow meet the needs of end user.
It is the reciprocal fortune using plunger due to having the friction pair of one group of plunger and filler, effect in the fluid end of reciprocating pump
It is dynamic so that into, the well-regulated take-off of tapping valve, to be alternately accomplished feed liquor, pressure-raising and discharge opeing process.And plunger and filler is close
The bad basis for being to ensure that fluid end flow and pressure stability is sealed, especially in petrochemical field, is frequently encountered toxic, inflammable easy
The media such as quick-fried, valuable control quite stringent, cannot there is evaporating, emitting, dripping or leaking of liquid or gas to the leakage rate at scene.Since however plunger and filler
It is mutually to move, just has mutual abrasion, wearing- in period is long, is also bound to bring the damage of sealing element and the leakage of medium,
The medium that leakage how is handled on filling-material structure is allowed to be not leak into extraneous or pollution environment, is very important structure and sets
Meter.
Chinese patent CN104763628A discloses a kind of fluid end of cylinder-and-piston type reciprocating pump, including the pump housing, plunger channel,
The plunger being movably arranged in plunger channel, it is characterised in that：The plunger include the big main plunger of cylindrical outer diameter and
What is be connected with main plunger is cylindrical outer through small subpost plug, and plunger channel includes the principal post that internal diameter matches with main plunger
Fill in the secondary plunger channel that channel and internal diameter match with subpost plug, be provided in the pump housing it is spaced apart from each other, be connected to main plunger channel
Vertical setting the first combination valve passage and the second combination valve passage, the first combination valve is set in the first combination valve passage, the
Second combination valve is set in two combination valve passages, and the length in the main plunger channel is more than the length of main plunger.It is mainly sharp
It is travelled forward acting with main plunger, moves also do work backward, flow-rate ratio list situation of doing work increases by 60%.But the structure is not
Solve the problems, such as that plunger pump is easily revealed.
Chinese patent CN106917743A discloses a kind of hydraulic end of plunger pump assembly of conical surface location sealing letter body, including
The interior pump housing for being equipped with plunger channel and combining valve passage, is located in combination valve passage the plunger being movably arranged in plunger channel
Combination valve, wherein plunger channel, which has, can be installed with the bellmouth of sealed letter body in one, sealed letter body utilizes and the taper hole wall
The conical surface that face matches and can be mounted in plunger channel to radial rotating；Be equipped in sealed letter body include pressure ring, main filler,
The filler assembly of main guide sleeve, counterbalance spring and spring base, plunger is axially across filler assembly.By being arranged in plunger channel
One bellmouth, plays the role of lock-bit to dispose sealed letter body using bellmouth, using medium into and out of pressure and filler
Sealed letter body is fixed in the plunger channel of the pump housing by the counterbalance spring of self-styled setting, is not required to separately be installed on pump with bolt again
Letter body on body, can shorten the length of pump the size of one letter body, and the knot for reducing part tires out error, improves and repeats
Assembly precision lowers the tired error of knot and eccentric wear is caused to improve the vulnerable part service life.Storage when the patent use completely new structure, and it is existing
There is structure to compare, change is larger, is not particularly suited in existing structure.
Utility model content
The purpose of this utility model is exactly to be provided a kind of with multiple to overcome the problems of the above-mentioned prior art
The hydraulic end of plunger pump structure of sealing effect.The utility model uses filler primary seal add-back in conventional structure design
Flow structure, then add the structure of secondary seal, the leakage of medium is avoided well, therefore avoids leaking medium to external environment
Pollution, it is ensured that device context is safe and reliable.
The purpose of this utility model can be achieved through the following technical solutions：
A kind of hydraulic end of plunger pump structure with multi-sealed effect, including pump head and babinet are provided with column in babinet
Channel is filled in, plunger is movably set in plunger channel, stuffing-box is set around plunger, the stuffing-box rubs with plunger composition
Pair is wiped, primary seal is provided between the stuffing-box and plunger, exhaust chamber, drain valve group, liquid feed valve is provided in pump head
Group and admission chamber, the drain valve group are arranged in exhaust chamber, and the feed liquor valve group is arranged in admission chamber, the exhaust chamber with
Admission chamber is separated by drain valve group and feed liquor valve group, and the reciprocating motion of the plunger drives feed liquor valve group or drain valve group to open and close,
It realizes the reciprocation cycle into drain, secondary seal is additionally provided between the stuffing-box and plunger, in the secondary seal
The return flow line for being back to admission chamber is drawn in position between primary seal.
The return flow line is opened in stuffing-box and pump head.
Sealing ring of the setting for being sealed between plunger and stuffing-box, described between the secondary seal and primary seal
Return flow line is located at one end in stuffing-box between sealing ring and primary seal.
The sealing ring is O-ring.
The stuffing-box is arranged between pump head and babinet.
It is bolted between the pump head and babinet.
The principles of the present invention：In the reciprocatory movement of plunger, once it is in induction stroke, the feed liquor of fluid end
Valve group can be automatically opened with pressure difference, and big quantity of fluid enters in pump head, and after the completion of feed liquor, plunger just enters reversed drain and rushes
Journey, the pressure medium in pump head is higher and higher at this time, i.e. pressure medium in the pressure of plunger at one end (close to pump head side) and pump head
Unanimously, packing seal element is equally also subjected to identical high pressure at this time, and the pressure difference until overcoming drain valve group, drain valve group is beaten
It opens so that outside liquid discharge pump head, pressure will reduce in pump head, and this completes a reciprocation cycles into drain.Due to
The reciprocating motion of plunger in cycles bears the stuffing-box of certain pressure and the reciprocating friction of plunger especially in drain stroke
Abrasion is will produce, the consequence of abrasion will necessarily be damaged, and dielectric leakage is caused, to ensure that the medium of leakage does not flow into the external world, herein
Return flow line is used in structure design, i.e., the medium of leakage is drained into admission chamber, and as medium further rises into pump head,
Sealing ring is provided in the rear side outer circle of return flow line simultaneously, is additionally provided with secondary seal in inner circle, can ensure that feed liquor completely
Chamber will not drain to the external world by return flow line.
Compared with prior art, the utility model uses return flow line, i.e., the medium of leakage is drained into admission chamber, and
As medium further rises into pump head, while it being provided with sealing ring and secondary seal on rear side of return flow line, can ensure that completely
Admission chamber will not drain to the external world by return flow line.The utility model structure is handling the media such as toxic, inflammable and explosive, valuable
When operating mode, plays the role of apparent to the environmental protection at scene, also improve the efficiency of enterprise indirectly.
Description of the drawings
Fig. 1 is the hydraulic end of plunger pump structural schematic diagram with multi-sealed effect.
Shown in figure label：1. stuffing-box, 2. pump heads, 3. exhaust chambers, 4. drain valve groups, 5. feed liquor valve groups, 6. admission chambers,
7. return flow line, 8. primary seals, 9. sealing rings, 10. secondary seals, 11. babinets, 12. plungers.
Specific implementation mode
The utility model is described in detail in the following with reference to the drawings and specific embodiments.
Embodiment
A kind of hydraulic end of plunger pump structure with multi-sealed effect, as shown in Figure 1, including pump head 2 and babinet 11, case
It is provided with plunger channel in body 11, plunger 12 is movably set in plunger channel, stuffing-box 1 is set around plunger 12, is filled out
Expect that letter 1 and the composition friction of plunger 12 are secondary, primary seal 8 is provided between stuffing-box 1 and plunger 12, the row of being provided in pump head 2
Sap cavity 3, drain valve group 4, feed liquor valve group 5 and admission chamber 6, drain valve group 4 be arranged in exhaust chamber 3, feed liquor valve group 5 setting into
In sap cavity 6, exhaust chamber 3 is separated with admission chamber 6 by drain valve group 4 and feed liquor valve group 5, and the reciprocating motion of plunger 12 drives liquid feed valve
Group 5 or drain valve group 4 open and close, and realize the reciprocation cycle into drain, secondary seal is additionally provided between stuffing-box 1 and plunger 12
10, the return flow line 7 for being back to admission chamber 6 is drawn in position between secondary seal 10 and primary seal 8.
Wherein, return flow line 7 is opened in stuffing-box 1 and pump head 2.It is arranged between secondary seal 10 and primary seal 8
Sealing ring 9 for being sealed between plunger 12 and stuffing-box 1, return flow line 7 are located at one end in stuffing-box 1 and are located at sealing ring 9
Between primary seal 8.Sealing ring 9 is O-ring.Stuffing-box 1 is arranged between pump head 2 and babinet 11.Pump head 2 and babinet 11 it
Between be bolted.
The principles of the present invention：In the reciprocatory movement of plunger 12, once be in induction stroke, fluid end into
Liquid valve group 5 can be automatically opened with pressure difference, and big quantity of fluid enters in pump head 2, and after the completion of feed liquor, plunger 12 just enters reversed row
Liquid stroke, the pressure medium in pump head is higher and higher at this time, i.e. plunger at one end medium pressure in the pressure of pump head side and pump head
Power is consistent, and packing seal element is equally also subjected to identical high pressure at this time, the pressure difference until overcoming drain valve group, drain valve group
It opens so that outside liquid discharge pump head, pressure will reduce in pump head, and this completes a reciprocation cycles into drain.By
In the reciprocating motion of plunger in cycles, especially in drain stroke, bears the stuffing-box of certain pressure and the reciprocal of plunger rubs
Wiping will produce abrasion, and the consequence of abrasion will necessarily be damaged, and dielectric leakage is caused, to ensure that the medium of leakage does not flow into the external world,
Return flow line is used in this structure design, i.e., the medium of leakage is drained into admission chamber, and as medium further rises into pump
Head, while being provided with sealing ring in the rear side outer circle of return flow line, being additionally provided with secondary seal in inner circle, can ensure that completely into
Sap cavity will not drain to the external world by return flow line.
Practicality can be understood and used the above description of the embodiments is intended to facilitate those skilled in the art
It is novel.Person skilled in the art obviously easily can make various modifications to these embodiments, and illustrating herein
General Principle be applied in other embodiment without having to go through creative labor.Therefore, the utility model is not limited to above-mentioned
Embodiment, those skilled in the art's announcement according to the present utility model, do not depart from improvement that the utility model scope is made and
Modification should be all within the protection scope of the utility model.
Claims (6)
1. a kind of hydraulic end of plunger pump structure with multi-sealed effect, including pump head (2) and babinet (11), babinet (11) are interior
It is provided with plunger channel, plunger (12) is movably set in plunger channel, stuffing-box (1), institute are set around plunger (12)
It states stuffing-box (1) and plunger (12) composition friction is secondary, primary seal (8) is provided between the stuffing-box (1) and plunger (12),
It is provided with exhaust chamber (3), drain valve group (4), feed liquor valve group (5) and admission chamber (6), the drain valve group (4) in pump head (2)
Setting in the exhaust chamber (3), feed liquor valve group (5) setting in admission chamber (6), the exhaust chamber (3) and admission chamber (6) by
Drain valve group (4) is separated with feed liquor valve group (5), and the reciprocating motion of the plunger (12) drives feed liquor valve group (5) or drain valve group
(4) it opens and closes, realizes the reciprocation cycle into drain,
It is characterized in that, secondary seal (10) is additionally provided between the stuffing-box (1) and plunger (12), described secondary close
The return flow line (7) for being back to admission chamber (6) is drawn in position between sealing (10) and primary seal (8).
2. a kind of hydraulic end of plunger pump structure with multi-sealed effect according to claim 1, which is characterized in that institute
Return flow line (7) is stated to be opened in stuffing-box (1) and pump head (2).
3. a kind of hydraulic end of plunger pump structure with multi-sealed effect according to claim 1, which is characterized in that institute
State sealing ring of the setting for being sealed between plunger (12) and stuffing-box (1) between secondary seal (10) and primary seal (8)
(9), the return flow line (7) is located at one end in stuffing-box (1) and is located between sealing ring (9) and primary seal (8).
4. a kind of hydraulic end of plunger pump structure with multi-sealed effect according to claim 3, which is characterized in that institute
It is O-ring to state sealing ring (9).
5. a kind of hydraulic end of plunger pump structure with multi-sealed effect according to claim 1, which is characterized in that institute
Stuffing-box (1) is stated to be arranged between pump head (2) and babinet (11).
6. a kind of hydraulic end of plunger pump structure with multi-sealed effect according to claim 1, which is characterized in that institute
It states and is bolted between pump head (2) and babinet (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820018688.XU CN207761928U (en) | 2018-01-05 | 2018-01-05 | Hydraulic end of plunger pump structure with multi-sealed effect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820018688.XU CN207761928U (en) | 2018-01-05 | 2018-01-05 | Hydraulic end of plunger pump structure with multi-sealed effect |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207761928U true CN207761928U (en) | 2018-08-24 |
Family
ID=63182915
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820018688.XU Expired - Fee Related CN207761928U (en) | 2018-01-05 | 2018-01-05 | Hydraulic end of plunger pump structure with multi-sealed effect |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207761928U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108019346A (en) * | 2018-01-05 | 2018-05-11 | 米顿罗工业设备（上海）有限公司 | A kind of hydraulic end of plunger pump structure with multi-sealed effect |
| CN113123961A (en) * | 2021-05-10 | 2021-07-16 | 华中科技大学 | High-pressure double-sealing and controllable aligning structure and plunger pump |
| CN117552973A (en) * | 2024-01-12 | 2024-02-13 | 山东唐宁专用汽车有限公司 | Plunger type fracturing pump and fracturing truck adopting same |
-
2018
- 2018-01-05 CN CN201820018688.XU patent/CN207761928U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108019346A (en) * | 2018-01-05 | 2018-05-11 | 米顿罗工业设备（上海）有限公司 | A kind of hydraulic end of plunger pump structure with multi-sealed effect |
| CN113123961A (en) * | 2021-05-10 | 2021-07-16 | 华中科技大学 | High-pressure double-sealing and controllable aligning structure and plunger pump |
| CN117552973A (en) * | 2024-01-12 | 2024-02-13 | 山东唐宁专用汽车有限公司 | Plunger type fracturing pump and fracturing truck adopting same |
| CN117552973B (en) * | 2024-01-12 | 2024-04-19 | 山东唐宁专用汽车有限公司 | Plunger type fracturing pump and fracturing truck adopting same |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207761928U (en) | Hydraulic end of plunger pump structure with multi-sealed effect | |
| CN108019346A (en) | A kind of hydraulic end of plunger pump structure with multi-sealed effect | |
| CN103629108B (en) | A kind of plunger sealing device of plunger reciprocating pump | |
| CN108626088B (en) | Ultrahigh pressure carbon dioxide pump | |
| CN108302033B (en) | Axial telescopic cylinder assembly of high water-based plunger type hydraulic pump | |
| CN201196127Y (en) | Servomotor | |
| CN220716518U (en) | Quantitative continuous glue outlet unit | |
| CN202266225U (en) | Device for lubricating polish rod of oil pumping unit | |
| CN108412719B (en) | Valve type flow distribution axial convex disc ball plug emulsion pump | |
| RU177393U1 (en) | Outboard compressor driven by rocking machine balancer | |
| CN206636873U (en) | A kind of hydraulic cylinder lasted a long time | |
| CN216111151U (en) | Motor direct-drive fracturing device | |
| CN208564946U (en) | A kind of plunger sealing structure | |
| CN208361788U (en) | Environmental protection and energy saving promote booster | |
| CN202579154U (en) | Polymer injection pump head with adjustable flow rate | |
| CN206889211U (en) | Double isolation chamber structure reciprocating vacuum pumps | |
| CN208535540U (en) | Reciprocating air cylinder and the grease pump for using the reciprocating air cylinder | |
| CN201884652U (en) | Double guide plunger sealing structure | |
| CN206191236U (en) | Pneumatic oil filling ware | |
| CN202833416U (en) | Hydraulic reciprocating sealing leakage recovery device | |
| CN211258980U (en) | Zero-leakage plunger pump | |
| CN209370013U (en) | A kind of gs-oil separator for hydraulic piston type compressor | |
| CN221347458U (en) | Sealing assembly | |
| CN209245421U (en) | A kind of stop valve | |
| CN209195610U (en) | Reversing device for pneumatic agent injection device of cluster gas well |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180824 Termination date: 20220105 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |