CN203925980U - A kind of balance of machinery reciprocating pump letter body - Google Patents
A kind of balance of machinery reciprocating pump letter body Download PDFInfo
- Publication number
- CN203925980U CN203925980U CN201420286937.5U CN201420286937U CN203925980U CN 203925980 U CN203925980 U CN 203925980U CN 201420286937 U CN201420286937 U CN 201420286937U CN 203925980 U CN203925980 U CN 203925980U
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- CN
- China
- Prior art keywords
- gland
- combination
- letter body
- balance
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a kind of balance of machinery reciprocating pump letter body, belongs to Petroleum Machinery Industry technical field.By adjusting nut, combination gland, gland nut, main letter body, plunger, packing, formed.Adjusting nut is threaded with combination gland, and gland nut is threaded with main letter body, and with combination gland Spielpassung, its right side is positioned in the middle part of combination gland on shoulder; The two ends of combination gland central through bore are mounting spring seat respectively, and wherein right-hand member spring seat is positioned on the shoulder of plunger middle part; Spring is installed between two spring seats in combination gland central through bore.The utility model has been simplified the reciprocal pump structure of hydraulic resistance balance, cancelled balance tube hydraulic resistance balance technology, avoided the potential safety hazard and the interior leakage that by it, are caused to be difficult for finding that the pump efficiency causing reduces problem, can also effectively solve power end reflex angle insufficient lubrication problem simultaneously.
Description
Technical field
The utility model relates to a kind of balance of machinery reciprocating pump letter body, belongs to Petroleum Machinery Industry technical field.
Technical background
For height, enter to exceed reciprocating pump, in running, fluid end pressure reacts on plunger, causes that power end exists reflex angle, makes crank and connecting rod bearing shell partial portion can not get all the time lubricating, and causes burning accident.For addressing this problem, in recent years generally adopted and take the hydraulic resistance balance reciprocating pump that balance tube technology is core, part has solved reflex angle problem, but has occurred new problem simultaneously.The one, increased by two leakage points, particularly of long duration, often there is balance tube corrosion, high pressure stings regimen condition and causes personal safety accident; The 2nd, letter body structure has increased by one group of packing, has two groups of packings, has increased the surface friction drag of plunger, has increased operation energy consumption, all will increase replacement cost and the workload of one group of packing simultaneously when safeguarding at every turn; The 3rd, when leaking, letter body master root is difficult for finding in time, cause letting out in pump pressure, pump efficiency reduces.
Summary of the invention
In view of above-mentioned deficiency, the utility model provides a kind of balance of machinery reciprocating pump letter body, can eliminate power end reflex angle problem, can avoid again the hydraulic resistance balance reciprocating pump of balance Manifold technology easily to reveal the problem that causes pump efficiency to reduce.
The utility model is achieved through the following technical solutions:
The utility model is comprised of adjusting nut, combination gland, gland nut, main letter body, plunger, packing.Adjusting nut is threaded with combination gland, and gland nut is threaded with main letter body, and with combination gland Spielpassung, its right side is positioned in the middle part of combination gland on shoulder; The two ends of combination gland central through bore are mounting spring seat respectively, and wherein right-hand member spring seat is positioned on the shoulder of plunger middle part; Spring is installed between two spring seats in combination gland central through bore.
Described combination gland coordinates with main letter body space, on the junction plane between combination gland and main letter body, seal ring is installed.
The beneficial effects of the utility model are:
1, simplify the reciprocal pump structure of balance, cancelled balance tube hydraulic resistance balance technology, avoided the potential safety hazard and the interior leakage that by it, are caused to be difficult for the problems such as pump efficiency reduction that discovery causes.
2, design, by adjustable spring force, is offset the reaction force of pump inlet high pressure water to plunger, efficiently solves power end reflex angle insufficient lubrication problem, has reduced by one group of packing_seal simultaneously, has reduced maintenance load and maintenance cost, has improved efficiency.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
1-adjusting nut in Fig. 1,2-combines gland, 3-gland nut, the main letter body of 4-, 5-seal ring, 6a-spring seat, 6b-spring seat, 7-spring, 8-plunger, 9-packing, 10-inner chamber of cylinder block.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
The utility model is comprised of adjusting nut 1, combination gland 2, gland nut 3, main letter body 4, plunger 8, packing 9, adjusting nut 1 is threaded with combination gland 2, gland nut 3 is threaded with main letter body 4, and with combination gland 2 Spielpassung, its right side is positioned on combination gland 2 middle part shoulders; The two ends of combination gland 2 central through bores are mounting spring seat 6a and spring seat 6b respectively, and spring seat 6b is positioned on plunger 8 middle part shoulders; Spring 7 is installed between the spring seat 6a and spring seat 6b in combination gland 2 central through bores.
Combination gland 2 and main letter body 4 Spielpassung are provided with seal ring 5 on the junction plane between combination gland 2 and main letter body 4.
In the running of pump, plunger 8 is in backward travel, the inlet valve of pump is opened, high pressure water enters inner chamber of cylinder block 10, apply back pressure to plunger 8, and the elastic force that spring 7 acts on plunger 8 is contrary with this thrust direction, by the size of adjusting nut 1 Regulation spring power, can effectively offset this thrust, thus the power end reflex angle problem of having avoided high pressure water to act on causing on plunger 8.
The utility model has been simplified the reciprocal pump structure of balance, has cancelled balance tube hydraulic resistance balance technology, has avoided the potential safety hazard and the interior leakage that by it, are caused to be difficult for finding that the pump efficiency causing reduces problem.Design, by the adjustable spring force of adjusting nut, is offset the reaction force of pump inlet high pressure water to plunger, efficiently solves power end reflex angle insufficient lubrication problem.Owing to having reduced by one group of packing_seal, reduce maintenance load and maintenance cost simultaneously, improved efficiency.
Claims (2)
1. a balance of machinery reciprocating pump letter body, by adjusting nut (1), combination gland (2), gland nut (3), main letter body (4), plunger (8), packing (9), formed, adjusting nut (1) is threaded with combination gland (2), gland nut (3) is threaded with main letter body (4), and with combination gland (2) Spielpassung, its right side is positioned on the shoulder of combination gland (2) middle part; It is characterized in that: the two ends of combination gland (2) central through bore are separately installed with spring seat (6a, 6b), one of them spring seat (6b) is positioned on the shoulder of plunger (8) middle part; Spring (7) is installed between the spring seat (6a, 6b) at combination gland (2) central through bore two ends.
2. a kind of balance of machinery reciprocating pump letter body according to claim 1, it is characterized in that: combination gland (2) and main letter body (4) Spielpassung are provided with seal ring (5) on the junction plane between combination gland (2) and main letter body (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420286937.5U CN203925980U (en) | 2014-05-30 | 2014-05-30 | A kind of balance of machinery reciprocating pump letter body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420286937.5U CN203925980U (en) | 2014-05-30 | 2014-05-30 | A kind of balance of machinery reciprocating pump letter body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203925980U true CN203925980U (en) | 2014-11-05 |
Family
ID=51821800
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420286937.5U Expired - Fee Related CN203925980U (en) | 2014-05-30 | 2014-05-30 | A kind of balance of machinery reciprocating pump letter body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203925980U (en) |
-
2014
- 2014-05-30 CN CN201420286937.5U patent/CN203925980U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141105 Termination date: 20160530 |