CN111360207A - Production process of ball valve for oil well pump - Google Patents
Production process of ball valve for oil well pump Download PDFInfo
- Publication number
- CN111360207A CN111360207A CN202010234106.3A CN202010234106A CN111360207A CN 111360207 A CN111360207 A CN 111360207A CN 202010234106 A CN202010234106 A CN 202010234106A CN 111360207 A CN111360207 A CN 111360207A
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- Prior art keywords
- ball valve
- oil well
- well pump
- casting
- valve
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/22—Moulds for peculiarly-shaped castings
- B22C9/24—Moulds for peculiarly-shaped castings for hollow articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/02—Sand moulds or like moulds for shaped castings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Check Valves (AREA)
Abstract
The invention discloses a production process of a ball valve for an oil well pump, which comprises the steps of providing design drawings, examining and verifying drawings, confirming a main part casting scheme, producing a mould, configuring molding sand, modeling, preparing materials, smelting, pouring, cleaning and sampling, processing accessories, finishing, assembling, inspecting, coating, packaging and leaving a factory in sequence to form the ball valve for the oil well pump. The ball valve produced by the method meets the requirements of an oil well pump on the aspects of precision, corrosion resistance and the like through the process steps, so that the production quality of the ball valve for the oil well pump is improved.
Description
Technical Field
The invention relates to the field of oil transportation equipment, in particular to a production process of a ball valve for an oil well pump.
Background
Petroleum is a viscous, dark brown liquid known as "industrial blood". Petroleum is mainly used as fuel oil and gasoline, which constitute one of the most important secondary energy sources in the world in 2012, and during petroleum exploration, petroleum reserves are calculated and determined according to exploration degrees and exploration conditions. The oil after exploration needs to use equipment such as an oil well pump in the process of exploitation and transportation, and the quality of the oil well pump plays a significant role in exploitation and transportation of the oil, so that the quality of the oil well pump needs to be strictly ensured.
The ball valve is an indispensable part in the oil well pump, so the quality of the ball valve is required to influence the quality of the oil well pump, the quality of the ball valve used in oil equipment such as the oil well pump has strict requirements, the ball valve produced uniformly in the existing market is ignored in the quality aspect of the ball valve in order to ensure the yield and the benefit, the production lines of the ball valve are various and not standardized, and several steps are required to be omitted, so that the use of the ball valve in the oil well pump is influenced, and even the quality of the whole oil well pump is influenced.
Disclosure of Invention
The invention aims to provide a production process of a ball valve for an oil well pump, which solves the problem that the quality of the ball valve is difficult to meet the requirements of an oil well pump due to the fact that the production of the ball valve is not standard.
The technical purpose of the invention is realized by the following technical scheme:
a production process of a ball valve for an oil well pump comprises the following steps:
a. providing a design drawing: providing an overall design drawing of the ball valve;
b. checking drawings; auditing the structural feasibility and the use safety of the design drawing;
c. confirming a main part casting scheme: making a casting scheme for casting the main components of the valve body, the valve rod, the valve cap, the valve ball and the pressing cap;
d. producing a mould; manufacturing a mould according to the drawing requirements;
e. preparing molding sand; according to different types of castings, configuring molding sand meeting the casting requirements for molding;
f. casting: manufacturing different shapes of the molding sand according to different castings;
g. preparing materials: collecting metal materials required by casting, and preparing reagents with required chemical components;
h. smelting: selecting a proper melting furnace, and smelting in a specific environment;
i. pouring: injecting molten metal formed after smelting into a mould;
j. cleaning and sampling: after the molten metal is solidified, removing the molding sand, and knocking off the mold gate and other equipment to obtain a casting;
k. processing accessories: preparing raw materials of fittings such as a sealing element and a fastening element, and turning the fittings of the ball valve according to a design drawing;
finish machining: polishing and deburring the main part and the accessory;
m. assembling: assembling the main part and the accessory to form a complete ball valve;
n. testing: inspecting the assembled ball valve;
o, film coating: spraying a protective film outside the ball valve;
p, packaging and leaving factory: and packaging the coated ball valve for delivery.
By adopting the technical scheme, the production steps are sequentially operated, so that the produced ball valve is subjected to standard batching and operation and layer-by-layer screening and inspection, the ball valve produced by the steps can meet the use requirement of an oil well pump, and the influence on the extraction and transportation of petroleum caused by the fact that the whole oil well pump cannot operate due to the damage of the ball valve is avoided.
Preferably, in the step f, the casting mold comprises molding, core making and mold matching.
By adopting the technical scheme, the mould after casting is closer to the shape of a casting through three steps of molding, core making and film preparation, so that the casting is more accurate.
Preferably, in the step g, 2Cr13 stainless steel is used as the metal material.
By adopting the technical scheme, the 2Cr13 belongs to martensitic stainless steel: the ball valve has the characteristics of good hardness and corrosion resistance, so that a harder and more durable ball valve can be manufactured, and due to the characteristic of corrosion resistance, the ball valve can be prevented from being corroded by oil stains and the like when used in an oil well pump, and the service life of the ball valve is prolonged.
Preferably, in the step g, the composition of the 2Cr13 stainless steel is carbon C: 0.16-0.25, silicon Si: 1.00 or less, manganese Mn: 1.00 or less, S: less than or equal to 0.030; phosphorus P: less than or equal to 0.035; chromium Cr: 12.00-14.00, nickel: less than or equal to 0.60.
By adopting the technical scheme, the 2Cr13 stainless steel with the configuration can reach the best balance between hardness and corrosion resistance, so that the service life of the ball valve made of the stainless steel is longer than that of other parts.
Preferably, in the step j, physical properties such as components and hardness of the casting need to be checked after the casting is completed.
By adopting the technical scheme, whether the ball valve can bear impact and corrosion when used in an oil well pump can be judged by inspecting various physical parameters such as components, hardness and the like of a casting, so that whether the ball valve can be used as the ball valve in the oil well pump can be judged.
Preferably, in the step k, after the turning of the fitting is completed, the specification and the size of the fitting need to be checked by referring to the size on the design drawing.
By adopting the technical scheme, the size of the accessory is detected, so that whether the accessory can be installed on the ball valve main body or not is judged, and the phenomenon that the accessory is damaged by a cast main part when being installed due to unqualified size of the accessory is avoided.
Preferably, in the step n, the inspection includes inspecting a shape and specification of the ball valve and performing a pump inspection after the ball valve is installed in the oil well pump.
By adopting the technical scheme, the practicability of the ball valve can be more accurately and completely tested through two kinds of tests of shape specification and pump inspection, so that whether the ball valve is qualified or not can be more accurately judged.
Preferably, in the step n, the inspection of the shape and the specification of the ball valve needs to be performed on each ball valve, and the pump inspection of putting the ball valve into the oil well pump is performed in a batch sampling inspection mode.
By adopting the technical scheme, the ball valves are inspected according to the shape and specification, so that each ball valve can be loaded into the oil well pump according to the correct shape and specification, the problem that the oil well pump is damaged due to unqualified specification of the ball valve, the ball valve used as a pump inspection cannot be sold easily after being inspected is solved, and a batch sampling inspection mode is adopted.
Preferably, in the step p, a 2Cr13 passivation film is sprayed on the surface of the ball valve.
By adopting the technical scheme, the 2Cr13 passive film is sprayed on the surface of the ball valve, so that the corrosion and damage speed of the surface of the ball valve can be delayed, and the quality of the ball valve is improved.
Drawings
FIG. 1 is a schematic process flow diagram of an embodiment.
Detailed Description
The following description is only a preferred embodiment of the present invention, and the protection scope is not limited to the embodiment, and any technical solution that falls under the idea of the present invention should fall within the protection scope of the present invention. It should also be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention.
Referring to fig. 1, a production process of a ball valve for a sucker rod pump is characterized by comprising the following steps:
a. providing a design drawing: and providing an overall design drawing of the ball valve.
b. Checking drawings; and (4) auditing the structural feasibility and the use safety of the design drawing.
c. Confirming a main part casting scheme: and (3) establishing a casting scheme for casting the main components of the valve body, the valve rod, the valve cap, the valve ball and the pressing cap.
d. Producing a mould; and manufacturing the die according to the drawing requirements.
e. Preparing molding sand; according to the difference of foundry goods kind, the configuration accords with the molding sand that the foundry goods required and supplies the molding to use to according to the difference of foundry goods required precision, can select different materials to carry out the molding sand.
f. Casting: the casting mold comprises a molding step, a core making step and a mold matching step, wherein the molding step is to form a cavity of the casting by using the molding sand, the core making step is a process of forming the internal shape of the casting, the mold matching step is to place a mud core into the cavity and well combine an upper sand box and a lower sand box, the molding is the most critical part in the casting and establishes the basic shape of the casting, and therefore the molding is the key step of the casting and needs to be carried out more rigorously.
g. Preparing materials: collecting metal materials required by casting, and preparing reagents with required chemical components; wherein the metal material is 2Cr13 stainless steel.
2Cr13 martensitic stainless steel: the ball valve has the characteristics of good hardness and corrosion resistance, so that a harder and more durable ball valve can be manufactured, and due to the characteristic of corrosion resistance, the ball valve can be prevented from being corroded by oil stains and the like when used in an oil well pump, and the service life of the ball valve is prolonged.
The components are as follows: c, carbon C: 0.16-0.25, silicon Si: 1.00 or less, manganese Mn: 1.00 or less, S: less than or equal to 0.030; phosphorus P: less than or equal to 0.035; chromium Cr: 12.00-14.00, nickel: less than or equal to 0.60. The 2Cr13 stainless steel with the configuration can achieve the best balance of hardness and corrosion resistance, so that the ball valve made of the stainless steel has longer service life compared with other steel grades.
h. Smelting: selecting a proper melting furnace, and smelting in a specific environment; the temperature and time of melting are determined according to the specification size and the components of the casting.
i. Pouring: the molten metal formed after smelting is poured into a mould, and because the molten metal is high in temperature during pouring, great potential safety hazards exist in the process of pouring the molten metal into the mould, and the pouring is carried out in a mode of matching multi-worker work division, so that the working range of each worker is reduced, and the potential safety hazards of each worker are reduced as far as possible.
j. Cleaning and sampling: and after the molten metal is solidified, removing the molding sand, knocking off the die sprue and other equipment to obtain a casting, and inspecting various physical properties of the casting such as components, hardness and the like after the casting is finished so as to judge whether the casting can bear impact and corrosion in the oil well pump.
k. Processing accessories: the method comprises the steps of preparing raw materials of accessories such as a sealing piece and a fastening piece, turning the accessories of the ball valve according to a design drawing, comparing and checking the specification and the size of the accessories according to the size on the design drawing after the turning of the accessories is finished, and detecting the size of the accessories so as to judge whether the accessories can be installed on a ball valve main body or not, and avoid the damage of the accessories to a cast main part due to the unqualified size of the accessories.
Finish machining: polishing and deburring the main part and the accessory;
m. assembling: assembling the main part and the accessory to form a complete ball valve;
n. testing: the ball valve after the assembly is inspected, the inspection comprises the inspection of the shape and specification of the ball valve and the pump inspection after the ball valve is installed in the oil well pump, wherein the inspection of the shape and specification of the ball valve is required to be carried out on each ball valve, and the pump inspection of the oil well pump which is put into the ball valve is carried out in a batch sampling inspection mode.
The shape and specification of each ball valve are checked, so that each ball valve can be guaranteed to be loaded into the oil well pump in the correct shape and specification, the problem that the oil well pump is damaged due to the fact that the specification of the ball valve is unqualified is avoided, the ball valve serving as a pump inspection cannot be sold easily after being inspected, and therefore the mode of batch sampling inspection is adopted. Through the method, the cost is reduced on the basis of ensuring the quality, so that certain economic benefit can be ensured.
Through two kinds of inspections of shape specification and pump inspection, the practicality of the ball valve can be tested more accurately and completely, and whether the ball valve is qualified or not can be judged more accurately.
o, film coating: 2Cr13 passive film is sprayed on the exterior of the ball valve, the passive film is difficult to form on the exterior of 2Cr13 steel, so the passive film needs to be sprayed, and the 2Cr13 passive film is sprayed on the surface of the ball valve, so that the corrosion and damage speed of the surface of the ball valve can be delayed, and the quality of the ball valve can be improved.
p, packaging and leaving factory: and packaging the coated ball valve for delivery.
The service conditions of the ball valve of the oil well pump are quite severe, the working medium of the ball valve contains various substances such as water, gas, oil, sand, wax, asphalt and the like, most oil wells contain corrosive media such as H2S, O2, CO2, Cl-, salt, alkali and the like, the ball valve is opened and closed periodically at the frequency of 6-15 times per minute, and pumped liquid carries mechanical impurities at high speed to flow through, so that the ball valve, a valve seat and a valve cover are violently washed, and the ball valve is damaged by scouring and corrosion.
Therefore, the ball valve in the oil well pump is required to have excellent quality, otherwise, the working requirement of the oil well pump is difficult to meet; through foretell production steps, operate in proper order for the ball valve of production is through standard batching and operation and screening inspection layer upon layer, thereby makes the ball valve of producing with above-mentioned step can satisfy the operation requirement of oil-well pump, has avoided because the damage of ball valve makes the unable operation of whole oil-well pump lead to the exploitation extraction transportation of oil to receive the influence.
Claims (9)
1. A production process of a ball valve for an oil well pump is characterized by comprising the following steps:
a. providing a design drawing: providing an overall design drawing of the ball valve;
b. checking drawings; auditing the structural feasibility and the use safety of the design drawing;
c. confirming a main part casting scheme: making a casting scheme for casting the main components of the valve body, the valve rod, the valve cap, the valve ball and the pressing cap;
d. producing a mould; manufacturing a mould according to the drawing requirements;
e. preparing molding sand; according to different types of castings, configuring molding sand meeting the casting requirements for molding;
f. casting: manufacturing different shapes of the molding sand according to different castings;
g. preparing materials: collecting metal materials required by casting, and preparing reagents with required chemical components;
h. smelting: selecting a proper melting furnace, and smelting in a specific environment;
i. pouring: injecting molten metal formed after smelting into a mould;
j. cleaning and sampling: after the molten metal is solidified, removing the molding sand, and knocking off the mold gate and other equipment to obtain a casting;
k. processing accessories: preparing raw materials of fittings such as a sealing element and a fastening element, and turning the fittings of the ball valve according to a design drawing;
finish machining: polishing and deburring the main part and the accessory;
m. assembling: assembling the main part and the accessory to form a complete ball valve;
n. testing: inspecting the assembled ball valve;
o, film coating: spraying a protective film outside the ball valve;
p, packaging and leaving factory: and packaging the coated ball valve for delivery.
2. The process of claim 1, wherein in step f, the casting comprises molding, core making and die matching.
3. The process for manufacturing a ball valve for an oil well pump as claimed in claim 2, wherein in the step g, the metal material is 2Cr13 stainless steel.
4. The process for producing a ball valve for an oil well pump as claimed in claim 3, wherein in the step g, the composition of the 2Cr13 stainless steel is carbon C: 0.16-0.25, silicon Si: 1.00 or less, manganese Mn: 1.00 or less, S: less than or equal to 0.030; phosphorus P: less than or equal to 0.035; chromium Cr: 12.00-14.00, nickel: less than or equal to 0.60.
5. The production process of the ball valve for the oil well pump according to claim 4, wherein in the step j, physical properties such as components and hardness of the casting need to be checked after the casting is finished.
6. The process for producing a ball valve for a rod pump according to claim 5, wherein in the step k, the fitting is subjected to comparative inspection with reference to the dimensions on the design drawing after the fitting is turned.
7. The process for producing a ball valve for an oil well pump according to claim 6, wherein the step n of inspecting comprises inspecting the shape and specification of the ball valve and inspecting the ball valve after the ball valve is installed in the oil well pump.
8. The process for producing a ball valve for an oil well pump according to claim 7, wherein in the step n, the shape and specification of the ball valve are inspected for each ball valve, and the inspection of the ball valve in the oil well pump is performed in a batch inspection mode.
9. The process for producing a ball valve for an oil well pump according to claim 8, wherein in the step p, a passivation film of 2Cr13 is sprayed on the surface of the ball valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010234106.3A CN111360207A (en) | 2020-03-30 | 2020-03-30 | Production process of ball valve for oil well pump |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010234106.3A CN111360207A (en) | 2020-03-30 | 2020-03-30 | Production process of ball valve for oil well pump |
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| CN111360207A true CN111360207A (en) | 2020-07-03 |
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| CN202010234106.3A Pending CN111360207A (en) | 2020-03-30 | 2020-03-30 | Production process of ball valve for oil well pump |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111922649A (en) * | 2020-08-17 | 2020-11-13 | 鑫洁宝机械科技(无锡)有限公司 | Production and processing method of plunger pump for high-quality high-pressure cleaning machine |
| CN111975352A (en) * | 2020-08-18 | 2020-11-24 | 鑫洁宝机械科技(无锡)有限公司 | Production line for core pressure component of high-pressure flushing machine |
| CN113664154A (en) * | 2021-08-19 | 2021-11-19 | 瑞安市陶山铸造厂 | Casting process for pump valve casting |
| CN114278776A (en) * | 2021-12-31 | 2022-04-05 | 北京国垦节水科技有限公司 | Electric valve and application thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN203560485U (en) * | 2013-10-16 | 2014-04-23 | 池州市富昌机械制造有限公司 | Hard seal ball valve |
| CN106319164A (en) * | 2016-10-10 | 2017-01-11 | 中国科学院金属研究所 | Heat treatment method of martensitic stainless steel |
| CN107034348A (en) * | 2017-05-10 | 2017-08-11 | 李逢友 | The western-style food tool heat treatment method and its device of 2CR13 materials |
| CN206751874U (en) * | 2017-05-10 | 2017-12-15 | 李逢友 | The western-style food cutter apparatus for heat-treatment of 2CR13 materials |
| CN110125331A (en) * | 2019-05-17 | 2019-08-16 | 合肥江淮铸造有限责任公司 | A kind of shape casting technique of casting complicated inner cavity |
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2020
- 2020-03-30 CN CN202010234106.3A patent/CN111360207A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203560485U (en) * | 2013-10-16 | 2014-04-23 | 池州市富昌机械制造有限公司 | Hard seal ball valve |
| CN106319164A (en) * | 2016-10-10 | 2017-01-11 | 中国科学院金属研究所 | Heat treatment method of martensitic stainless steel |
| CN107034348A (en) * | 2017-05-10 | 2017-08-11 | 李逢友 | The western-style food tool heat treatment method and its device of 2CR13 materials |
| CN206751874U (en) * | 2017-05-10 | 2017-12-15 | 李逢友 | The western-style food cutter apparatus for heat-treatment of 2CR13 materials |
| CN110125331A (en) * | 2019-05-17 | 2019-08-16 | 合肥江淮铸造有限责任公司 | A kind of shape casting technique of casting complicated inner cavity |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111922649A (en) * | 2020-08-17 | 2020-11-13 | 鑫洁宝机械科技(无锡)有限公司 | Production and processing method of plunger pump for high-quality high-pressure cleaning machine |
| CN111922649B (en) * | 2020-08-17 | 2021-11-05 | 鑫洁宝机械科技(无锡)有限公司 | Production and processing method of plunger pump for high-quality high-pressure cleaning machine |
| CN111975352A (en) * | 2020-08-18 | 2020-11-24 | 鑫洁宝机械科技(无锡)有限公司 | Production line for core pressure component of high-pressure flushing machine |
| CN113664154A (en) * | 2021-08-19 | 2021-11-19 | 瑞安市陶山铸造厂 | Casting process for pump valve casting |
| CN114278776A (en) * | 2021-12-31 | 2022-04-05 | 北京国垦节水科技有限公司 | Electric valve and application thereof |
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