CN204525335U - The maintenance workpiece of liquid nitrogen pump vehicle three cylinder pump - Google Patents
The maintenance workpiece of liquid nitrogen pump vehicle three cylinder pump Download PDFInfo
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- CN204525335U CN204525335U CN201520076983.7U CN201520076983U CN204525335U CN 204525335 U CN204525335 U CN 204525335U CN 201520076983 U CN201520076983 U CN 201520076983U CN 204525335 U CN204525335 U CN 204525335U
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- pump
- cylinder
- liquid nitrogen
- maintenance
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims abstract description 84
- 238000012423 maintenance Methods 0.000 title claims abstract description 50
- 239000007788 liquid Substances 0.000 title claims abstract description 42
- 229910052757 nitrogen Inorganic materials 0.000 title claims abstract description 42
- 230000006978 adaptation Effects 0.000 claims description 7
- 238000000034 method Methods 0.000 abstract description 10
- 230000008569 process Effects 0.000 abstract description 9
- 239000000463 material Substances 0.000 abstract description 6
- 230000001771 impaired effect Effects 0.000 abstract description 2
- 230000008439 repair process Effects 0.000 abstract description 2
- 238000010276 construction Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 210000002683 foot Anatomy 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Details Of Reciprocating Pumps (AREA)
Abstract
The utility model discloses a kind of pump housing and safeguard workpiece, particularly a kind of maintenance workpiece of liquid nitrogen pump vehicle three cylinder pump, belong to liquid nitrogen pump vehicle repair apparatus technical field; Describedly safeguard that workpiece comprises helping and draw workpiece, described helping draws workpiece to comprise stop fixture block, contiguous block and screw rod A to form, described screw rod A penetrates stop fixture block and contiguous block is also threaded with between contiguous block, the position of described stop fixture block between the head and contiguous block of screw rod; The maintenance workpiece of liquid nitrogen pump vehicle three cylinder pump of the present utility model is skillfully constructed, rational in infrastructure, solve cylinder sleeve and valve seat to belong to interference fit and make it be difficult to the problem of extracting, avoid plunger, valve seat material softer impaired in unloading process, can facilitate and the reliable care and maintenance for three cylinder pump, improve three cylinder pump maintenance timeliness and maintenance qualities, effectively save cost of upkeep.
Description
Technical field
The utility model relates to a kind of pump housing and safeguards workpiece, and particularly a kind of maintenance workpiece for liquid nitrogen pump vehicle three cylinder pump, belongs to liquid nitrogen pump vehicle repair apparatus technical field.
Background technology
Liquid nitrogen pump vehicle is mainly used in coordinating water conservancy fracturing unit to complete liquid nitrogen and mixes note pressing crack construction, gas lift liquid drainage and all kinds of large-scale nitrogen of Oil/gas Well are replaced, airtight, pressure testing construction, general liquid nitrogen pump vehicle adopts direct-fired vapo(u)rization system, by high-pressure liquid nitrogen gasification for high pressure nitrogen injects in oil, gas well or other devices, reach construction object.During liquid nitrogen pump work, liquid nitrogen flows to three cylinder pump from storage tank through centrifugal slurry pump, operating pressure is pressurized to by reciprocating piston, then high-pressure liquid nitrogen flows into evaporimeter, absorbing enough heats from evaporimeter makes liquid nitrogen become gases at high pressure, temperature rises to 15 DEG C-21 DEG C, with up to 800000 standard cubic foots/hour discharge capacity flowed out by dump valve.
Due to the high request of three cylinder pump work cryogenic high pressure state, its maintenance required precision is high, and simultaneously due to three cylinder pump material particularity, its plunger, valve seat material are softer, and cylinder sleeve and valve seat belong to interference fit makes it be difficult to extract, and improves maintenance mounting or dismounting difficulty.
Summary of the invention
Goal of the invention of the present utility model is: for above-mentioned Problems existing, provides a kind of maintenance workpiece of liquid nitrogen pump vehicle three cylinder pump, for the care and maintenance of three cylinder pump, improves three cylinder pump maintenance timeliness and maintenance qualities, saves cost of upkeep.
The technical solution adopted in the utility model is as follows:
A kind of maintenance workpiece of liquid nitrogen pump vehicle three cylinder pump, comprise helping and draw workpiece, described helping draws workpiece to comprise stop fixture block for engaging with the high-pressure outlet end face or outer wall of cylinder sleeve, for the contiguous block that is connected with the high-pressure outlet end face of valve seat and the screw rod A for stop fixture block, contiguous block being connected, described screw rod A penetrates stop fixture block and contiguous block is also threaded with between contiguous block, the position of described stop fixture block between the head and contiguous block of screw rod.
Further, described stop fixture block edge is circular ring structure, and its internal diameter is not less than the internal diameter of cylinder sleeve, and stop fixture block end face is also provided with the annular slot with the high-pressure outlet end external diameter adaptation of cylinder sleeve.
Further, the ring wall of described stop fixture block offers operational observations mouth.
Further, described contiguous block is provided with the connecting bolt of screw rod symmetry.
Further, described head is provided with spanner and holds section A.
The maintenance workpiece of liquid nitrogen pump vehicle three cylinder pump of the present utility model, also comprise boosting workpiece, described boosting workpiece comprises the fixed block for being connected with cylinder sleeve end, described fixed block is provided with screw rod B, and described screw rod B penetrates fixed block and is threaded with between fixed block.
Further, described fixed block is provided with the external screw thread with cylinder sleeve end internal thread adaptation, and described fixed block is connected and fixed by the internal thread of external screw thread and cylinder sleeve end.
Further, described fixed block is provided with screws handle.
Further, the working tips of described screw rod B is tapered structure.
Further, the outer end of described screw rod B is provided with spanner and holds section B.
In sum, owing to have employed technique scheme, the beneficial effects of the utility model are:
(1) help described in and draw the contiguous block of workpiece can be used for being connected with valve seat, stop fixture block matches with the high-pressure outlet end face of cylinder sleeve or outer wall in operation and keeps out, for the restriction of screw head position, coordinate spanner to turn screw rod to make to produce relative motion with screw rod and contiguous block, and be that valve seat pulls out by fixed support in cylinder sleeve with stop fixture block, the interference fit that such design can overcome cylinder sleeve and valve seat on the one hand makes it be difficult to the shortcoming of extracting, utilize evenly and stably moving of screw thread on the other hand, make can taking out stably along cylinder sleeve axle center of valve seat, overcome the softer shortcoming be easily damaged because of anchor ring unbalance stress in taking-up process of valve seat material,
(2) described stop fixture block edge is circular ring structure, mechanical strength is reliable and stable, annular slot is designed with the accuracy being beneficial to and ensureing screens in operation, ensures the safety operated in the lift process of valve seat, and the design of operational observations mouth also makes the situation of movement being convenient to observe valve seat in cylinder sleeve;
(3) described boosting workpiece can be connected with the internal thread of cylinder sleeve end, and carries out axial boosting to be aided with screw rod B to valve seat or plunger, is conducive to accelerating valve seat, the dismounting of plunger and installation;
(4) the maintenance workpiece of described liquid nitrogen pump vehicle three cylinder pump, is skillfully constructed, rational in infrastructure, can be convenient and reliably for the care and maintenance of three cylinder pump, improve three cylinder pump maintenance timeliness and maintenance qualities, effectively saved cost of upkeep.
Accompanying drawing explanation
Fig. 1 is that helping of the maintenance workpiece of the utility model liquid nitrogen pump vehicle three cylinder pump draws Workpiece structure schematic diagram;
Fig. 2 is that the A-A of Fig. 1 of the maintenance workpiece of the utility model liquid nitrogen pump vehicle three cylinder pump is to generalized section;
Fig. 3 is the boosting Workpiece structure schematic diagram of the maintenance workpiece of the utility model liquid nitrogen pump vehicle three cylinder pump;
Fig. 4 is liquid nitrogen pump vehicle three cylinder pump structure chart of the present utility model;
Fig. 5 be the utility model Fig. 1 help when drawing workpiece to use and the assembly relation schematic diagram of three cylinder pump cylinder sleeve and valve seat;
Fig. 6 is that the boosting workpiece of the utility model Fig. 3 is when using and the assembly relation schematic diagram of three cylinder pump cylinder sleeve and plunger.
Mark in figure: 1-stop fixture block, 101-annular slot, 102-operational observations mouth, 2-contiguous block, 201-connecting bolt, 3-screw rod A, 301-head, 302-spanner holding section A, 4-fixed block, 401-screw handle, the holding of 5-screw rod B, 501-spanner section B, 6-cylinder sleeve, 7-valve seat, 8-plunger, 9-low pressure inlet, 10-low tension outlet, 11-high-pressure outlet.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in detail.
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
Liquid nitrogen pump vehicle three cylinder pump described in the utility model, as shown in Figure 4, the low pressure inlet 9, the low tension outlet 10 that comprise cylinder sleeve 6 and offer thereon, an end of cylinder sleeve 6 is high-pressure outlet 11 to its structure, and valve seat 7 and plunger 8 are arranged in cylinder sleeve 6.
The maintenance workpiece of liquid nitrogen pump vehicle three cylinder pump of the present utility model, comprise helping and draw workpiece, its structure as depicted in figs. 1 and 2, described helping draws workpiece to comprise stop fixture block 1 for engaging with high-pressure outlet 11 end face or the outer wall of cylinder sleeve 6, for the contiguous block 2 that is connected with high-pressure outlet 11 end face of valve seat 7 with for by stop fixture block 1, the screw rod A3 that contiguous block 2 connects, described screw rod A3 penetrates stop fixture block 1 and contiguous block 2 is also threaded with between contiguous block 2, the position of described stop fixture block 1 between the head 301 and contiguous block 2 of screw rod 3, stop fixture block 1 can be free to slide on screw rod A3, and position sliding position is defined between head 301 and contiguous block 2.
Stop fixture block 1 of the present utility model is for the inlay card stop bit with cylinder sleeve 6, also can to match inlay card with the mechanism of the outer wall of cylinder sleeve 6, stop fixture block 1 described in the present embodiment by carrying out inlay card stop bit with high-pressure outlet 11 end face adaptation, stop fixture block 1 edge is circular ring structure, its internal diameter is not less than the internal diameter of cylinder sleeve, stop fixture block 1 end face is also provided with the annular slot 101 with the high-pressure outlet end external diameter adaptation of cylinder sleeve, is conducive to helping and draws workpiece to be accurately positioned on cylinder sleeve 6.In the present embodiment, the coaxial heart of stop fixture block 1, contiguous block 2 and screw rod A3 is arranged.
In the utility model, the operational observations mouth 102 that the ring wall of described stop fixture block 1 is offered, cylinder sleeve 6 inside can be seen by operational observations mouth 102, to facilitate the observation of the motion state to the valve seat 7 in cylinder sleeve 6, the mouth of operational observations described in the present embodiment 102 is that symmetry cuts two arc blocks and forms with diameter by the stop fixture block 1 of complete annulus tubular construction, and its structure as shown in Figure 2.
In the present embodiment, described contiguous block 2 is provided with the connecting bolt 201 of screw rod 3 symmetry, to utilize the connecting screw hole of valve seat 7 to be connected with workpiece, ensures stressed even of lift process.
In the present embodiment, described head 301 is provided with spanner and holds section A302, operates with the holding of convenient wrench.
The maintenance workpiece of liquid nitrogen pump vehicle three cylinder pump of the present utility model, also comprise boosting workpiece, its structure as shown in Figure 3, described boosting workpiece comprises the fixed block 4 for being connected with cylinder sleeve end, described fixed block 4 is provided with screw rod B5, and described screw rod B5 penetrates fixed block 4 and is threaded with between fixed block 4.Fixed block 4 described in the present embodiment is provided with the external screw thread with cylinder sleeve end internal thread adaptation, and described fixed block 4 is connected and fixed by the internal thread of external screw thread and cylinder sleeve end.In the present embodiment, fixed block 4 and the coaxial heart of screw rod B5 are arranged.
The boosting workpiece of the present embodiment, described fixed block 4 is provided with and screws handle 401, the working tips of described screw rod B5 is that tapered structure conveniently contacts with the centre bore on three cylinder pump parts, prevent workpiece from causing wearing and tearing to pump end face, the outer end of described screw rod B5 is provided with spanner and holds section B501.
In three cylinder pump servicing operations, need to dismantle valve seat, because valve seat external diameter and cylinder sleeve internal diameter belong to interference fit, valve seat not easily takes out, in servicing operations in the past, main use copper rod knocks dismounting to valve seat, easily cause valve seat, cylinder sleeve, low pressure valve, the hard damage of plunger, pump efficiency is directly caused to decline after valve seat damage, Long-Time Service can cause barrel wear or damage, also interference fit is belonged in addition between plunger and cylinder sleeve, and the plunger of three cylinder pump have employed 14 grades of sealing means, its seal quantity is many, and plunger front end and rear end diameter different, installation accuracy requires high, in servicing operations in the past, the mode of plunger dismounting is knocked with copper rod, easily dislocation is installed between seal, cause and repeat to install, and knock great efforts, easily cause seal failure, cylinder sleeve moves, cylinder sleeve and plunger damage.The maintenance workpiece of liquid nitrogen pump vehicle three cylinder pump of the present utility model, mainly softer for solving plunger, valve seat material, cylinder sleeve and valve seat belong to interference fit makes it be difficult to the problem of extracting.Before dismounting valve seat, to help and draw workpiece to assemble at high-pressure outlet end, contiguous block 2 is fixedly connected with the high-pressure outlet end face of valve seat 7, stop fixture block 1 is nested in the high-pressure outlet end face of cylinder sleeve, valve seat 7 pulls out from cylinder sleeve 6 by rotary screw A3, then in the process of dismounting plunger 8, boosting workpiece is assembled by end face contrary for valve seat 7 high-pressure outlet, its fixed block 4 is threadedly connected in valve seat 7, turn screw rod B5 plunger 8 is released slowly in cylinder sleeve 6, reach the object preventing the seal of its plunger 8 impaired.Assembling process after having safeguarded is as follows: first fill plunger 8, at the high-pressure outlet end assembling boosting workpiece of cylinder sleeve 6, plunger 8 is advanced cylinder sleeve 6 by screw rod B5 slowly, take off boosting workpiece again, valve seat 7 puts into cylinder sleeve 6, valve seat 7 advances in cylinder sleeve 6 by assembling boosting workpiece screw rod B5 slowly, and whole maintenance process completes.By the application to this instrument, improve maintenance timeliness, effectively reduce the damage of valve seat, cylinder sleeve, low pressure valve, plunger, avoid expensive fittings cost.
The maintenance workpiece of liquid nitrogen pump vehicle three cylinder pump of the present utility model, has the following advantages:
(1) help described in and draw the contiguous block of workpiece can be used for being connected with valve seat, stop fixture block matches with the high-pressure outlet end face of cylinder sleeve or outer wall in operation and keeps out, for the restriction of screw head position, coordinate spanner to turn screw rod to make to produce relative motion with screw rod and contiguous block, and be that valve seat pulls out by fixed support in cylinder sleeve with stop fixture block, the interference fit that such design can overcome cylinder sleeve and valve seat on the one hand makes it be difficult to the shortcoming of extracting, utilize evenly and stably moving of screw thread on the other hand, make can taking out stably along cylinder sleeve axle center of valve seat, overcome the softer shortcoming be easily damaged because of anchor ring unbalance stress in taking-up process of valve seat material,
(2) described stop fixture block edge is circular ring structure, mechanical strength is reliable and stable, annular slot is designed with the accuracy being beneficial to and ensureing screens in operation, ensures the safety operated in the lift process of valve seat, and the design of operational observations mouth also makes the situation of movement being convenient to observe valve seat in cylinder sleeve;
(3) described boosting workpiece can be connected with the internal thread of cylinder sleeve end, and carries out axial boosting to be aided with screw rod B to valve seat or plunger, is conducive to accelerating valve seat, the dismounting of plunger and installation;
(4) the maintenance workpiece of described liquid nitrogen pump vehicle three cylinder pump, is skillfully constructed, rational in infrastructure, can be convenient and reliably for the care and maintenance of three cylinder pump, improve three cylinder pump maintenance timeliness and maintenance qualities, effectively saved cost of upkeep.
Compared to conventional maintenance means, the maintenance workpiece of this liquid liquid nitrogen pump vehicle three cylinder pump shortens maintenance cycle about 1 times, improve maintenance timeliness about 1 times, due to the shortening of maintenance period, annual indirect saving consumable accessory renewal cost about 20,000/platform cover, improve maintenance precision simultaneously, avoid conventional tool and use the damage caused valve seat, plunger, cylinder sleeve, seal, avoid accessory and damage the expensive maintenance cost brought.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection domain of the present utility model.
Claims (10)
1. the maintenance workpiece of a liquid nitrogen pump vehicle three cylinder pump, it is characterized in that: comprise helping and draw workpiece, described helping draws workpiece to comprise stop fixture block (1) for engaging with high-pressure outlet end face or the outer wall of cylinder sleeve, for the contiguous block (2) that is connected with the high-pressure outlet end face of valve seat with for by stop fixture block (1), the screw rod A(3 that contiguous block (2) connects), described screw rod A(3) penetrate stop fixture block (1) and contiguous block (2) and be threaded with between contiguous block (2), described stop fixture block (1) is positioned at the position between the head (301) of screw rod (3) and contiguous block (2).
2. the maintenance workpiece of liquid nitrogen pump vehicle three cylinder pump as claimed in claim 1, it is characterized in that: described stop fixture block (1) edge is circular ring structure, its internal diameter is not less than the internal diameter of cylinder sleeve, and stop fixture block (1) end face is also provided with the annular slot (101) with the high-pressure outlet end external diameter adaptation of cylinder sleeve.
3. the maintenance workpiece of liquid nitrogen pump vehicle three cylinder pump as claimed in claim 2, is characterized in that: the ring wall of described stop fixture block (1) offers operational observations mouth (102).
4. the maintenance workpiece of liquid nitrogen pump vehicle three cylinder pump as claimed in claim 1, is characterized in that: described contiguous block (2) is provided with the symmetrical connecting bolt (201) of screw rod (3).
5. the maintenance workpiece of liquid nitrogen pump vehicle three cylinder pump as claimed in claim 1, is characterized in that: described head (301) is provided with spanner and holds section A(302).
6. the maintenance workpiece of the liquid nitrogen pump vehicle three cylinder pump as described in any one of claim 1 to 5, it is characterized in that: also comprise boosting workpiece, described boosting workpiece comprises the fixed block (4) for being connected with cylinder sleeve end, (4) are provided with screw rod B(5 to described fixed block), described screw rod B(5) penetrate fixed block (4) and be threaded with between fixed block (4).
7. the maintenance workpiece of liquid nitrogen pump vehicle three cylinder pump as claimed in claim 6, it is characterized in that: described fixed block (4) is provided with the external screw thread with cylinder sleeve end internal thread adaptation, described fixed block (4) is connected and fixed by the internal thread of external screw thread and cylinder sleeve end.
8. the maintenance workpiece of liquid nitrogen pump vehicle three cylinder pump as claimed in claim 7, is characterized in that: described fixed block (4) is provided with and screws handle (401).
9. the maintenance workpiece of liquid nitrogen pump vehicle three cylinder pump as claimed in claim 6, is characterized in that: described screw rod B(5) working tips be tapered structure.
10. the maintenance workpiece of liquid nitrogen pump vehicle three cylinder pump as claimed in claim 6, is characterized in that: described screw rod B(5) outer end be provided with spanner and hold section B(501).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520076983.7U CN204525335U (en) | 2015-02-04 | 2015-02-04 | The maintenance workpiece of liquid nitrogen pump vehicle three cylinder pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520076983.7U CN204525335U (en) | 2015-02-04 | 2015-02-04 | The maintenance workpiece of liquid nitrogen pump vehicle three cylinder pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204525335U true CN204525335U (en) | 2015-08-05 |
Family
ID=53739385
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520076983.7U Active CN204525335U (en) | 2015-02-04 | 2015-02-04 | The maintenance workpiece of liquid nitrogen pump vehicle three cylinder pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204525335U (en) |
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2015
- 2015-02-04 CN CN201520076983.7U patent/CN204525335U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160125 Address after: 100101 Beijing City, Chaoyang District Hui Street No. six twelfth floor Patentee after: SINOPEC OILFIELD SERVICE CORPORATION Patentee after: SINOPEC XINAN OILFIELD SERVICE CORPORATION Address before: 618000 Deyang province Sichuan City Jingyang District Huaihe Street No. 112 Patentee before: Zhao Guobin |