CN1019674B - The gas balance and the safety guard thereof of oil pumper - Google Patents
The gas balance and the safety guard thereof of oil pumperInfo
- Publication number
- CN1019674B CN1019674B CN 90103775 CN90103775A CN1019674B CN 1019674 B CN1019674 B CN 1019674B CN 90103775 CN90103775 CN 90103775 CN 90103775 A CN90103775 A CN 90103775A CN 1019674 B CN1019674 B CN 1019674B
- Authority
- CN
- China
- Prior art keywords
- gas
- plunger
- flange
- oil pumper
- gas bag
- 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
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Abstract
Oil pumper gas balance provided by the invention and safety guard thereof are parts in the oil field equipment, it is characterized in that gas bag is integrated with cylinder, and plunger adopts the external orientation device, is applicable to the counterweight balance and the adjustment of walking beam and blue elephant.Its safety guard has adopted automatic cut-out power source, braking by force, and the measure of the exitting air balanced pumping unit that can effectively carry under the accident unexpected mistake carries out reliable safeguard protection fast, in order to avoid accident further enlarges.This safety guard is equally applicable to the piston type of present oil field use or the safeguard protection of plunger type oil pumper gas bascule.
Description
The present invention relates to a kind of gas balance and safety guard thereof of oil pumper, when unexpected unloading accident takes place counterweight balance, adjustment and the oil pumper that is applicable to oil pumper in the oil production equipment, can the prevention accident enlarge, equipment, oil well are carried out safeguard protection.
Oil pumper is a kind of visual plant in the oil field operation, for solving the load imbalance problem that exists in the multiple oil pumper work, for many years, has all made extensive work both at home and abroad.Wherein CN88202684.4 " gas balanced type beam-pumping unit balance cylinder device " is disclosed is exactly a kind of.It adopts gas bag is whole body structure with cylinder, has reduced cost of production.But because of it has oil pumper safety precautions under the unexpected unloading accident does not take place, so that the expansion of prevention accident has brought potential unsafe factor to use.The major accident several times of beam type air balanced pumping unit generation in use in the oil field in the recent period, all relevant with no safety guard.
The purpose of this invention is to provide and a kind ofly can be applicable to what walking beam and blue elephant were used, gas bag is integrated with cylinder, contains the gas bascule of external orientation and safeguard protection thereof.
The present invention is achieved in that to have gas bag (2) are integrated with cylinder, gas bag (2) is provided with adpting flange (5), tonifying Qi hole (8) is arranged on the plunger (3), tonifying Qi hole (8) is communicated with automatic air admission system (7), plunger (3) lower end and adpting flange (5) are formed the tubular body of blind hole, link to each other with oil pumper by adpting flange (5), sealing (4a) makes flange (4) and plunger (3) form sealed being dynamically connected, the oil pumper gas bascule of lubricating arrangement and working gas is characterized in that:
A. the upper end of plunger (3) is an opening, and there is sealing flange (5) lower end, and tonifying Qi hole (8) are located on the plunger wall;
B. gas bag (2) the top quick air vent (1) that is provided with flange (5) and is communicated with rapid-release valve (203);
C. flange (4) is provided with ball-type guider (4c) and slip-type brake (205);
D. form safety guard by load controller (201), power cut relay (202), rapid-release valve (203), slip-type brake (205), gas-breaking switch (206).The equilibrium principle of this device on oil pumper is identical with existing gas bascule.Its safety guard is like this work: (disconnected sucker rod, screw thread come off because of down-hole accident when the suspension point load of oil pumper ...) drop to " qualification numerical value " suddenly when following; load controller in this device starting relay immediately cuts off power source, opens rapid-release valve, brake and gas-breaking switch; force oil pumper in time to stop, with the expansion of prevention accident.
The present invention can also realize like this: have gas bag (2) and be integrated with cylinder, gas bag (2) is provided with adpting flange (5), tonifying Qi hole (8) is arranged on the gas bag wall, tonifying Qi hole (8) is communicated with automatic air admission system (7), plunger (3) lower end and adpting flange (5) are formed the tubular body of blind hole, are linked to each other with oil pumper by adpting flange (5), and sealing (4a) makes flange (4) and plunger (3) form sealed being dynamically connected, lubricating arrangement and working gas is characterized in that:
A. the upper end of plunger (3) is an opening, and there is closure fange (5) lower end, and flange (5) is provided with bearing-type guider (102) and pin type brake (204);
B. gas bag (2) top is provided with quick air vent (1), and sidewall is provided with tonifying Qi hole (8), and is connected with guide rail (101h);
C. flange (4) is provided with ball-type guider (4c);
D. form safety guard by load controller (201), power cut relay (202), rapid-release valve (203), pin type brake (204), gas-breaking switch (206).Its action principle is same as above.
Ball-type guider in apparatus of the present invention, see Fig. 1, Fig. 3, comprise flange (4d), flange (4), slip spider (205a), ball (4c), adjust the gap of plunger (3) and ball (4c) by flange (4d), so that the good guidance when guaranteeing plunger (3) with gas bag (2) relative motion.
Bearing-type guider in apparatus of the present invention, it can be ball-type, see Fig. 2 (4c) Fig. 6 (101e), wherein Fig. 6 (101e) comprises adjusting bolt (101a), locking nut (101b), pedestal (101c), dog screw (101d), ball (101e), oil nozzle (101f), pearl cover (101g), guide rail (101h), and pedestal (101c) is fixed together with welding method and adpting flange (5), and guide rail (101h) fixes by bolt and gas bag (2), pumping unit shelf sees Fig. 4.Guide rail (101h) also can be processed into little V-type groove (shown in dotted line) with the cooperation place of ball (101e), also can be rolling bearing type see Fig. 7 (102g), it comprises support (102a), key (102b), adjusting nut (102c), bearing pin (102d), jump ring (102e), bearing support (102f), rolling bearing (102g), guide rail (101h), its support (102a) is fixed together with screw or welding manner and adpting flange (5), guide rail (101h) is by bolt and gas bag (2), pumping unit shelf fixes, the bearing-type guider can also be the Fig. 7 that sees of sliding bearing formula, only need that rolling bearing (102g) is replaced by sliding bearing this moment and get final product, other structure is constant.
Slip-type brake (205) in apparatus of the present invention is seen Fig. 1, Fig. 3, comprise slip spider (205a), slips (205b), spring (205c), hollow screw (205d), relay (205e), control pin (205f), and with screw slip spider (205a) and flange (4) are fixed together, relay (205e) is communicated with by the output of lead with load controller (201).The operating principle of slip-type brake (205) is: referring to slip-type brake among Fig. 1, when relay (205e) when receiving control signal, control pin (205f) is pulled to the left side by relay, slips (205b) is released, move down, simultaneously plunger (3) is braked, and brake force is proportional to the thrust of plunger.
Pin type brake in apparatus of the present invention (204), see Fig. 2, Fig. 4, Figure 10, comprise relay (204a), control pin (204b), hollow screw (204c), little spring (204d), big spring (204e), safety pin (204f), stop screw (204g), adjusting pad (204h), key seat (204i), link flange (5), guide rail (101h), and key seat (204i) is fixed by bolts to and links on the flange (5), and relay (204a) is communicated with the output of load controller (201) with lead.
The operating principle of pin type brake (204) is: referring to the relay in Figure 10 pin type brake (204a) when receiving control signal, at once move on the pulling control pin (204b), discharge safety pin (204f), safety pin (204f) is under the effect of big spring (204e), stretch out left and insert in the pin-and-hole of guide rail (101h), safety pin (204f) and will together being braked in pin-and-hole with its binding flange (5) that fuses, plunger (3).
Load controller in apparatus of the present invention (201), see Fig. 3, Fig. 4, Fig. 5, Fig. 8, comprise adjustment screw (201a), jam nut (201b), pressing plate (201c), limit switch (201d), supporting plate (201e), flexible member (201f), relay, and flexible member (201f) is installed on the load-sensitive position of oil pumper, the output of relay is connected with power cut relay (202), rapid-release valve (203), brake (204), (205), gas-breaking switch (206).So that obtain and the output control signal.
The load-sensitive position of oil pumper is more, as the fulcrum of polished rod eye, wire rope, horse head, pulley base etc.
The operating principle of load controller is: flexible member (201f) is that the load controlled on demand manufactures and designs or selects for use in the load controller (201), when it can guarantee the oil pumper polished rod load greater than control load, flexible member (201f) is depressed into the dead point, and limit switch (201d) is depressed by adjustment screw (201a), relay is connected on the normally closed point of limit switch (201d), be open circuit at this moment, so control circuit is failure to actuate.When polished rod load during less than controlled value, flexible member (201f) resets, and drive limit switch (201d) simultaneously and reset, its constant close contact closure, control circuit is switched on, and relay is activated.Control relay power cut relay (202), rapid-release valve (203), brake (204), (205), the gas-breaking switch (206) in the deactivation safety guard again simultaneously; be about to oil pumper power source, tonifying Qi power source cut-out automatically; release gases at high pressure in the gas bag (2); plunger (3) is braked; cut off the path between gas bag (2) and the cylinder, thereby stoped the expansion of accident.
Power cut relay (202) in apparatus of the present invention can be a general-purpose relay, and the output of the same load controller of its input (201) is connected, and output is with the control system connection in air admission system (7) and oil pumper total output source automatically.
Rapid-release valve in apparatus of the present invention (203), see Fig. 9, comprise valve gap (203a), valve body (203b), hollow screw (203c), valve rod (203d), relay (203e), little spring (203f), little sealing (203g), big sealing (203h), middle sealing (203i), big spring (203j), sealing (203k), valve plug (203l), and connect by the quick air vent (1) of valve body (203b) lower linking tube and gas bag (2), relay (203e) is by the output connection of lead and load controller (201).
The operating principle of rapid-release valve (203) is: referring to Fig. 9, this moment, rapid-release valve was in fastening position, it is gases at high pressure enter top through left side control gas circuit from the P chamber of lower linking tube B chamber, under the effect of gases at high pressure and big spring (203j), valve plug (203l) moves down, and air vent is closed.Receive control instruction and when moving, valve rod (203d) is pulled to the right when relay (203e), the control gas circuit is closed, and the B chamber loses gases at high pressure, and valve plug (203) moves under the effect of P cavity pressure, opens gas vent, and gases at high pressure discharge through the O hole.
Gas-breaking switch in apparatus of the present invention (206), see Fig. 5, Figure 11, comprise valve gap (206a), valve body (206b), hollow screw (206c), valve rod (206d), relay (206e), little spring (206f), little sealing (206g), tube connector (206h), middle sealing (206i), big spring (206j), valve plug (206k), sealing (206l), big sealing (206m), and the delivery outlet of valve body (206b) the same gas bag of the lower end mouth of pipe (2) is communicated with, the same plunger of connecting piece (206h) (3) end entrance down is communicated with, and relay (206e) is connected by the output of lead and load controller (201).
The operating principle of gas-breaking switch (206) is: gas-breaking switch shown in Figure 11 is in the gas circuit on-state, promptly controls gas circuit and is closed, and valve plug (206k) is moved on the gases at high pressure, and main gas circuit is opened.When relay (206e) is received the control signal of load controller (201), valve rod (206d) is moved on the relay (206e), open the control gas circuit, this moment, gases at high pressure entered the B chamber from the P chamber through the control gas circuit, valve plug (206k) moves down under the effect of gases at high pressure and big spring (206i), close the path between P and the O, promptly cut off the gas primary path.It is on the bascule of split with cylinder that gas-breaking switch only is used in gas bag.
The present invention compares with prior art, and because of gas bag and cylinder are integrated, plunger adopts external orientation, thereby has improved steel utilization ratio and processing characteristics, and total cost is descended.Owing to set up safety guard, eliminated the in use potential unsafe factor of existing air balanced pumping unit, brought the huge social benefit.
Below in conjunction with drawings and Examples invention is further described.
Fig. 1 is one of gas balanced structure among the present invention, contains the structure chart of SDeflector (4c) and slip-type brake (205).
Fig. 2 be among the present invention the gas balanced structure two, contain the structure chart of bearing guider and pin type brake (204).
Fig. 3 is a kind of arrangement diagram of the present invention on beam pumping unit.
Fig. 4 is a kind of arrangement diagram of the present invention on blue elephant.
Fig. 5 is that safety guard is a kind of arrangement diagram on the split type air balanced pumping unit at gas bag with cylinder among the present invention.
Fig. 6 is the sectional view of the outer guider of ball-type among the present invention.
Fig. 7 is the sectional view of middle (center) bearing formula guider of the present invention.
Fig. 8 is the structure chart of load controller among the present invention (201).
Fig. 9 is the structure chart of rapid-release valve among the present invention (202).
Figure 10 is the structure chart of pin type brake among the present invention (204).
Figure 11 is the structure chart of gas-breaking switch among the present invention (206).
Example 1:
Referring to Fig. 3, this is a kind of arrangement of the present invention on beam pumping unit.Different is with existing gas bascule, the plunger type gas bascule that gas bag and cylinder are integrated, and set up load controller (201), rapid-release valve (203), slip-type brake (205), outer guider (100), power cut relay (202).Its counterweight balance is identical with existing gas bascule with the adjustment principle, does not repeat.Its safety guard is work like this; when oil pumper carries because of accident takes place to lose suddenly; fracture as sucker rod or wire rope; load controller (201) will send signal immediately; its control relay starts; rapid-release valve (203), power cut device (202), slip-type brake (205) also all are activated thereupon; the power source of oil pumper and automatic air admission system (7) is cut off; high-pressure working gas in the gas bag (2) is released; plunger (3) is braked; thereby force oil pumper to stop immediately, stoped the expansion of accident.
Example 2:
Referring to Fig. 4, be a kind of arrangement of the present invention on blue elephant, a kind of new gas balance scheme, different with example 1 is that gas bag (2) maintains static together with frame, linking flange (5) is the through hole flange, and be located at gas bag in, the bottom.Outer guiding adopts ball bearing mode guider or rolling slidingtype guider.Brake is pin type brake (204).The tonifying Qi hole is located on the gas bag (2).The operating principle of its balance, adjustment, safeguard protection all is same as example 1, does not do and repeats.
Example 3:
Referring to Fig. 5, be that the safety guard among the present invention is a kind of application example on the split type air balanced pumping unit at gas bag with cylinder.Be that with above-mentioned example difference its gas bag and cylinder are splits, thereby do not establish brake again in the safety guard, but set up a gas-breaking switch (206) between gas bag (2) and plunger (3), other are all identical with precedent.Be that load controller (201) sends after the unexpected mistake year signal of oil pumper, power cut device (203) cuts off the power source of automatic air admission system (7) and oil pumper immediately, gas-breaking switch (206) cuts off the gas circuit between gas bag (2) and the plunger (3), and rapid-release valve (203) is exitted to cylinder.Thereby plunger loses the ability of motion, has also just stoped the expansion of accident.
Claims (2)
1, a kind of gas balance and safety guard thereof of oil pumper; having gas bag (2) is integrated with cylinder; gas bag (2) is provided with adpting flange (5); tonifying Qi hole (8) is arranged on the plunger (3), and tonifying Qi hole (8) are communicated with automatic air admission system (7), and plunger (3) lower end and adpting flange (5) are formed the tubular body of blind hole; link to each other with oil pumper by adpting flange (5); sealing (4a) makes flange (4) and plunger (3) form sealed being dynamically connected, and lubricating arrangement and working gas is characterized in that:
A. the upper end of plunger (3) is an opening, and there is sealing flange (5) lower end, and tonifying Qi hole (8) are located on the plunger wall;
B. gas bag (2) the top quick air vent (1) that is provided with flange (5) and is communicated with rapid-release valve (203);
C. flange (4) is provided with ball-type guider (4c) and slip-type brake (205);
D. form safety guard by load controller (201), power cut relay (202), rapid-release valve (203), slip-type brake (205), gas-breaking switch (206).
2, a kind of oil pumper gas bascule has gas bag (2) and is integrated with cylinder, gas bag (2) is provided with adpting flange (5), tonifying Qi hole (8) is arranged on the gas bag wall, tonifying Qi hole (8) is communicated with automatic air admission system (7), plunger (3) lower end and adpting flange (5) are formed the tubular body of blind hole, are linked to each other with oil pumper by adpting flange (5), and sealing (4a) makes flange (4) and plunger (3) form sealed being dynamically connected, lubricating arrangement and working gas is characterized in that:
A. the upper end of plunger (3) is an opening, and there is closure fange (5) lower end, and flange (5) is provided with bearing-type guider (102) and pin type brake (204);
B. gas bag (2) top is provided with quick air vent (1), and sidewall is provided with tonifying Qi hole (8), and is connected with guide rail (101h);
C. flange (4) is provided with ball-type guider (4c);
D. form safety guard by load controller (201), power cut relay (202), rapid-release valve (203), pin type brake (204), gas-breaking switch (206).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90103775 CN1019674B (en) | 1990-05-29 | 1990-05-29 | The gas balance and the safety guard thereof of oil pumper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90103775 CN1019674B (en) | 1990-05-29 | 1990-05-29 | The gas balance and the safety guard thereof of oil pumper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1048436A CN1048436A (en) | 1991-01-09 |
| CN1019674B true CN1019674B (en) | 1992-12-30 |
Family
ID=4878238
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90103775 Expired CN1019674B (en) | 1990-05-29 | 1990-05-29 | The gas balance and the safety guard thereof of oil pumper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1019674B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104941697B (en) * | 2015-06-01 | 2016-10-05 | 株洲南车时代电气股份有限公司 | A kind of air-pressure balancing device |
-
1990
- 1990-05-29 CN CN 90103775 patent/CN1019674B/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CN1048436A (en) | 1991-01-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C13 | Decision | ||
| GR02 | Examined patent application |