CN2851633Y - Reciprocating plunger-pump - Google Patents
Reciprocating plunger-pump Download PDFInfo
- Publication number
- CN2851633Y CN2851633Y CN 200520010265 CN200520010265U CN2851633Y CN 2851633 Y CN2851633 Y CN 2851633Y CN 200520010265 CN200520010265 CN 200520010265 CN 200520010265 U CN200520010265 U CN 200520010265U CN 2851633 Y CN2851633 Y CN 2851633Y
- Authority
- CN
- China
- Prior art keywords
- stuffing box
- plunger
- secondary seal
- stuffing
- pressing sleeve
- 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 - Lifetime
Links
- 239000007788 liquid Substances 0.000 claims abstract description 40
- 210000004907 gland Anatomy 0.000 claims description 37
- 238000012856 packing Methods 0.000 claims description 12
- 239000000945 filler Substances 0.000 claims description 9
- 210000004894 snout Anatomy 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims 1
- 230000006835 compression Effects 0.000 abstract 1
- 238000007906 compression Methods 0.000 abstract 1
- 238000007789 sealing Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000003292 diminished effect Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Landscapes
- Details Of Reciprocating Pumps (AREA)
Abstract
The utility model discloses a reciprocating plunger pump which comprises a pump body, a stuffing box, a plunger which is arranged in the inner cavity of the stuffing box, and a sealed stuffing which is arranged in the plunger, wherein the outer end of the stuffing box is assembled with a pressing sleeve; the outer end of the pressing sleeve is pressed to one side of the pump body by a pressing sleeve nut which is matched with the outer end of the stuffing box in threads; a secondary sealed pressing sleeve is sheathed at the outer part of the plunger, the front end of the secondary sealed pressing sleeve is pressed to the sealed stuffing and the middle part of the secondary sealed pressing sleeve is provided with a stuffing cavity. A stuffing cushion which is sheathed on the plunger is sheathed in the stuffing cavity. An inner thread at the tail end of the pressing sleeve is assembled with a stuffing compression nut. A seal groove at the outer surface of the pressing sleeve is vertical to a shaft line, and a seal ring is assembled in the seal groove. The front end of the pressing sleeve is provided with a liquid guiding hole, and a liquid collecting hole is arranged right below the stuffing box at a position corresponding to the liquid guiding hole. The reciprocating plunger pump of the utility model has the stuffing box sealed twice, can be used for collecting liquids which overflows from a liquid force end and can not pollute a working place.
Description
Technical field the utility model relates to a kind of equipment for liquid transportation, particularly a kind of reciprocating pump.
Background technique is in the reciprocating pump product, because what plunger extruded is the liquid with pressure, this pressured fluid can overflow to the low-pressure end by plunger surface, pressure reduction is big more, the situation of overflow is serious more, requires reciprocating pump to have more reliable sealing for the medium water insoluble, that contaminativity is strong, inflammable, explosive and poisonous.
Summary of the invention purpose of the present invention is exactly at the deficiencies in the prior art, provide a kind of rational in infrastructure, Stuffing box with secondary seal, can make the liquid that overflows be back to automatically reciprocating pump the low pressure liquid entrance point, do not pollute the reciprocating pump of work-yard.
The technical solution of the utility model is as follows: a kind of reciprocating pump, comprise the stuffing box packing of installing on the plunger installed in the pump housing, Stuffing box, the Stuffing box inner chamber, the plunger, the outer end of described Stuffing box also is equipped with the secondary seal gland, and the pump housing one side is pressed to by the gland nut of Stuffing box outer end screw-thread fit in the outer end of secondary seal gland; The secondary seal gland is enclosed within the outside of plunger, and its front end is pressed to stuffing box packing, and the middle part is provided with packing cavity, is set with filler in the packing cavity and is enclosed within on the plunger, and the internal thread of secondary seal gland tail end is equipped with the filler gland nut; The outer surface seal groove of secondary seal gland is furnished with seal ring perpendicular to axis in the seal groove; The front end of secondary seal gland is provided with delivery hole, and the corresponding position of the below of Stuffing box and delivery hole is provided with hole for back flow, is communicated with liquid return pipe, and the other end of liquid return pipe is communicated with the snout cavity of the pump housing.Be provided with oil collecting hole with the corresponding position of oil guiding hole under the Stuffing box, can directly collect the liquid that overflows, the liquid that will overflow by return tube is back to the liquid delivery end of reciprocating pump automatically.Add the secondary seal Stuffing box in the outer end of Stuffing box, further sealing, the pressure that first Stuffing box spreads out of is used to carry the liquid that overflows to arrive the liquid delivery end of multiple plunger pump, produce the effect of step-down simultaneously, the pressure that arrives secondary seal Stuffing box liquid is diminished, then the liquid that do not overflow substantially of secondary seal Stuffing box reaches the effect of sealing fully.
Described liquid return pipe is to process and the back flow channel of formation on the wall of the Stuffing box and the pump housing.Make the structure of reciprocating pump compact more, sealing effect is better.
Described liquid return pipe is the drainback passage that the snout cavity of the hole for back flow and the pump housing is connected to form by the liquid return pipe of outside.Easy access.
The front end of described secondary seal gland is provided with the position of delivery hole and the outer cylinder of secondary seal gland forms the round platform rank.
The delivery hole of described secondary seal gland front end is 1-80.
Reciprocating pump of the present utility model is a kind of Stuffing box with secondary seal, can make the liquid that overflows be back to automatically reciprocating pump the liquid delivery end, do not pollute the reciprocating pump of work-yard.
Description of drawings Fig. 1 is the utility model embodiment 1 a structural representation;
Fig. 2 is the utility model embodiment 2 a structural representation;
Embodiment
As shown in Figure 1: a kind of reciprocating pump, comprise the stuffing box packing 3 of installing on the plunger 8 installed in the pump housing 1, Stuffing box 2, Stuffing box 2 inner chambers, the plunger 8, the outer end of described Stuffing box 2 also is equipped with secondary seal gland 5, and the pump housing 1 one sides are pressed to by the gland nut 6 of Stuffing box 2 outer end screw-thread fit in the outer end of secondary seal gland 5; Secondary seal gland 5 is enclosed within the outside of plunger 8, and its front end is pressed to stuffing box packing 3, and the middle part is provided with packing cavity 51, is set with filler 54 in the packing cavity 51 and is enclosed within on the plunger 8, and the internal thread of secondary seal gland 5 tail ends is equipped with filler gland nut 7; The outer surface seal groove 52 of secondary seal gland 5 is furnished with seal ring 4 perpendicular to axis in the seal groove 52; The front end of secondary seal gland 5 is provided with delivery hole 53, and the below of Stuffing box 2 and delivery hole 53 corresponding positions are provided with hole for back flow 21, are communicated with liquid return pipe 9, and the other end of liquid return pipe 9 is communicated with the snout cavity of the pump housing 1.Described liquid return pipe 9 is to process and the back flow channel of formation on the wall of the Stuffing box 2 and the pump housing 1.
The front end of described secondary seal gland 5 is provided with the position of delivery hole 53 and the outer cylinder of secondary seal gland 5 forms the round platform rank.
The delivery hole 53 of described secondary seal gland 5 front ends is 1-80.
As shown in Figure 2: other parts are identical with embodiment 1 structure, be described liquid return pipe 9 are the drainback passages that the snout cavity of the hole for back flow 21 and the pump housing 1 are connected to form by the return tube 9 of outside.
Working principle
Claims (5)
1, a kind of reciprocating pump, comprise the plunger of installing in the pump housing (1), Stuffing box (2), Stuffing box (2) inner chamber (8), the stuffing box packing (3) that plunger (8) is gone up installation, it is characterized in that: the outer end of described Stuffing box (2) also is equipped with secondary seal gland (5), and the pump housing (1) one side is pressed to by the gland nut (6) of Stuffing box (2) outer end screw-thread fit in the outer end of secondary seal gland (5); Secondary seal gland (5) is enclosed within the outside of plunger (8), its front end is pressed to stuffing box packing (3), the middle part is provided with packing cavity (51), is set with filler (54) in the packing cavity (51) and is enclosed within on the plunger (8), and the internal thread of secondary seal gland (5) tail end is equipped with filler gland nut (7); The outer surface seal groove (52) of secondary seal gland (5) is furnished with seal ring (4) perpendicular to axis in the seal groove (52); The front end of secondary seal gland (5) is provided with delivery hole (53), and the below of Stuffing box (2) and the corresponding position of delivery hole (53) are provided with hole for back flow (21), are communicated with liquid return pipe (9), and the other end of liquid return pipe (9) is communicated with the snout cavity of the pump housing (1).
2, reciprocating pump according to claim 1 is characterized in that: described liquid return pipe (9) is to process and the back flow channel of formation on the wall of the Stuffing box (2) and the pump housing (1).
3, reciprocating pump according to claim 1 is characterized in that: described liquid return pipe (9) is the drainback passage that the snout cavity of the hole for back flow (21) and the pump housing (1) is connected to form by the liquid return pipe (9) of outside.
4, reciprocating pump according to claim 1 is characterized in that: the front end of described secondary seal gland (5) is provided with the position of delivery hole (53) and the outer cylinder of secondary seal gland (5) forms the round platform rank.
5, reciprocating pump according to claim 1 is characterized in that: the delivery hole (53) of described secondary seal gland (5) front end is 1-80.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520010265 CN2851633Y (en) | 2005-11-04 | 2005-11-04 | Reciprocating plunger-pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520010265 CN2851633Y (en) | 2005-11-04 | 2005-11-04 | Reciprocating plunger-pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2851633Y true CN2851633Y (en) | 2006-12-27 |
Family
ID=37585590
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520010265 Expired - Lifetime CN2851633Y (en) | 2005-11-04 | 2005-11-04 | Reciprocating plunger-pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2851633Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101725521B (en) * | 2009-11-27 | 2012-05-30 | 煤炭科学研究总院 | Solid medium contained plunger pump stuffing sealing device |
| CN104747432A (en) * | 2015-03-31 | 2015-07-01 | 中国石油大学(北京) | Single-plunger metering pump and pump head assembly thereof |
| CN104763628A (en) * | 2015-03-27 | 2015-07-08 | 宁波合力机泵有限公司 | Fluid end of plunger-type reciprocating pump and plunger-type reciprocating pump using the fluid end |
| CN104863005A (en) * | 2015-04-22 | 2015-08-26 | 浙江大盛纸业有限公司 | Disc mill sealing device for pulping machine |
| CN108412721A (en) * | 2018-03-31 | 2018-08-17 | 山东中探机械有限公司 | A kind of wear-resisting voltage stabilizing mud pump with plunger |
| CN112211815A (en) * | 2020-10-22 | 2021-01-12 | 重庆水泵厂有限责任公司 | Reciprocating pump plunger seal structure |
| WO2023045019A1 (en) * | 2021-09-24 | 2023-03-30 | 烟台杰瑞石油装备技术有限公司 | Packing pack assembly, hydraulic end and plunger pump |
-
2005
- 2005-11-04 CN CN 200520010265 patent/CN2851633Y/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101725521B (en) * | 2009-11-27 | 2012-05-30 | 煤炭科学研究总院 | Solid medium contained plunger pump stuffing sealing device |
| CN104763628A (en) * | 2015-03-27 | 2015-07-08 | 宁波合力机泵有限公司 | Fluid end of plunger-type reciprocating pump and plunger-type reciprocating pump using the fluid end |
| CN104747432A (en) * | 2015-03-31 | 2015-07-01 | 中国石油大学(北京) | Single-plunger metering pump and pump head assembly thereof |
| CN104863005A (en) * | 2015-04-22 | 2015-08-26 | 浙江大盛纸业有限公司 | Disc mill sealing device for pulping machine |
| CN108412721A (en) * | 2018-03-31 | 2018-08-17 | 山东中探机械有限公司 | A kind of wear-resisting voltage stabilizing mud pump with plunger |
| CN112211815A (en) * | 2020-10-22 | 2021-01-12 | 重庆水泵厂有限责任公司 | Reciprocating pump plunger seal structure |
| CN112211815B (en) * | 2020-10-22 | 2022-07-01 | 重庆水泵厂有限责任公司 | Reciprocating pump plunger seal structure |
| WO2023045019A1 (en) * | 2021-09-24 | 2023-03-30 | 烟台杰瑞石油装备技术有限公司 | Packing pack assembly, hydraulic end and plunger pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CHONGQING BOZHANG MECHANICAL AND ELECTRICAL EQUIPM Free format text: FORMER OWNER: ZHANG JIAN Effective date: 20140904 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20140904 Address after: 400030, Shapingba District, Chongqing, 281 Dragon Street, No. 6 attached Patentee after: Chongqing Bozhang Mechanical and Electrical Equipment Co., Ltd. Address before: 400030, Shapingba District, Chongqing, 33 Dragon Street No. 4, 5-1 attached Patentee before: Zhang Jian |
|
| CX01 | Expiry of patent term |
Granted publication date: 20061227 |
|
| EXPY | Termination of patent right or utility model |