CN209799907U - Automatic filtering and injecting system of mud pump cylinder sleeve washing cabin for well drilling - Google Patents

Abstract

The utility model discloses an automatic filtration of slush pump cylinder liner washing cabin and injection system for well drilling, including first bleeder cock, injection tee bend, Y type filter, suction inlet hose, pneumatic diaphragm pump, outlet hose and second bleeder cock, it is connected with first bleeder cock to inject the tee bend, Y type filter is connected with the injection tee bend, suction inlet hose one end is connected with Y type filter, and the other end is connected with pneumatic diaphragm pump, outlet hose one end is connected with pneumatic diaphragm pump, and the other end is connected on the second bleeder cock. The utility model discloses the system can operate the cleanliness that this system kept the flush fluid in the slush pump normal operating, improves the life of cylinder liner and piston, guarantees the high-efficient work of slush pump, not only has avoided the cylinder liner washing cabin frequently to dismantle, artifical clean and the operating procedure of repacking again, can avoid unnecessary waste of flush fluid and the parking maintenance cost of corresponding slush pump simultaneously.

Description

Automatic filtering and injecting system of mud pump cylinder sleeve washing cabin for well drilling

Technical Field

The utility model relates to an automatic filtration of slush pump cylinder liner washing cabin and injection system for well drilling.

Background

Generally, an offshore drilling platform is provided with 3 to 4 mud pumps for drilling operation and mud circulation, each mud pump is provided with a cylinder sleeve flushing system for cooling and lubricating a cylinder sleeve and a piston of the mud pump, the cylinder sleeve flushing system is composed of a flushing fluid storage cabin (flushing cabin for short, and the whole flushing cabin is divided into two parts by an internal middle cabin wall, including a settling cabin and a working cabin), a centrifugal pump and a filter, a heat exchanger and a flushing pipe, and the figure 1 shows that the flushing system is simple in structure, convenient to operate and low in cost. When the slurry pump is started, the piston reciprocates under the drive of the crankshaft connecting rod to establish the pressure of a high-pressure slurry system, the cylinder sleeve flushing system also operates simultaneously, flushing liquid is cooled by a centrifugal pump through a heat exchanger and finally sprayed out through a flushing pipe, the flushing pipe moves along with the piston and sprays the flushing liquid to cool and lubricate the piston cylinder sleeve, the flushing liquid flushed from the cylinder sleeve passes through a backflow hole at the bottom of a cylinder sleeve flushing groove, firstly returns to a flushing liquid sedimentation cabin to be precipitated, and then overflows to a flushing liquid working cabin through the top of an intermediate bulkhead to carry out cylinder sleeve flushing operation, the detachable mesh cover plate is designed above the flushing groove in consideration of heat dissipation and convenience for overhauling and replacing the piston cylinder sleeve, but in the process of debugging or operation and maintenance of the slurry pump, dust and impurities in a room can enter the flushing system through the mesh cover plate to cause flushing liquid pollution, and, the effective service cycle is usually one year, but because the invasion of external dust and impurity, the flush fluid just need be changed because of being polluted before usually not becoming invalid yet, cause unnecessary waste, the washing cabin volume is 537 liters, the great dismouting of being difficult for of volume, need all discharge earlier the flush fluid in the cabin before this cabin of cleaning at every turn and then draw out this cabin, the manual work is cleaned the interior wall of cabin and is installed again behind sediment and the attachment, whole process is very inconvenient, and at this in-process slush pump need park the maintenance, to sum up, the frequent change of flush fluid not only causes the waste, and influence equipment work efficiency and drilling platform effective operation time.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a mud pump cylinder liner washing cabin automatic filtration and injection system for well drilling.

The utility model discloses a realize that the technical scheme that above-mentioned purpose adopted is: the automatic filtering and injecting system for the washing cabin of the cylinder sleeve of the mud pump for well drilling comprises a first discharge cock, an injection tee joint, a Y-shaped filter, a suction port hose, a pneumatic diaphragm pump, an outlet hose and a second discharge cock, wherein the injection tee joint is connected with the first discharge cock, the Y-shaped filter is connected with the injection tee joint, one end of the suction port hose is connected with the Y-shaped filter, the other end of the suction port hose is connected with the pneumatic diaphragm pump, one end of the outlet hose is connected with the pneumatic diaphragm pump, and the other end of the outlet hose is connected to the second discharge cock.

The first and second tapping cocks are ball valves.

The utility model relates to an automatic filtration of slush pump cylinder liner washing cabin and injection system for well drilling can operate the cleanliness that this system kept the flush fluid in slush pump normal operating, improves the life of cylinder liner and piston, guarantees the high-efficient work of slush pump, not only has avoided the cylinder liner washing cabin frequently to dismantle, artifical clean and the operating procedure of repacking again, can avoid unnecessary waste and the parking maintenance cost of corresponding slush pump of flush fluid simultaneously.

Drawings

Fig. 1 is a schematic structural diagram of the automatic filtering and injecting system of the mud pump cylinder sleeve washing cabin for drilling.

In the figure: 1. a first bleed cock; 2. injecting a tee joint; 3. a Y-type filter; 4. a suction port hose; 5. a pneumatic diaphragm pump; 6. an outlet hose; 7. a second bleed cock.

Detailed Description

As shown in figure 1, the automatic filtering and injecting system for the washing cabin of the cylinder sleeve of the drilling mud pump comprises a first discharge cock 1, an injection tee joint 2, a Y-shaped filter 3, a suction port hose 4, a pneumatic diaphragm pump 5, an outlet hose 6 and a second discharge cock 7, wherein the injection tee joint 2 is connected with the first discharge cock 1, the Y-shaped filter 3 is connected with the injection tee joint 2, one end of the suction port hose 4 is connected with the Y-shaped filter 3, the other end of the suction port hose is connected with the pneumatic diaphragm pump 5, one end of the outlet hose 6 is connected with the pneumatic diaphragm pump 5, the other end of the outlet hose is connected onto the second discharge cock 7, and the first discharge cock and the second discharge.

The system is based on the problems of cleaning and maintenance of the existing mud pump cylinder sleeve washing cabin, in order to avoid the operation difficulties of frequent disassembly and assembly, manual cleaning and the like of the cylinder sleeve washing cabin, two existing discharge cocks at the bottom of a washing fluid sedimentation cabin and a working cabin are utilized, and filter parts such as a ball valve, a tee joint, a hose, a Y-shaped filter, a pneumatic diaphragm pump and the like are respectively externally connected, wherein the ball valve is a fixed part and is permanently installed on the discharge cock at the bottom of the washing cabin, the other parts, the pneumatic diaphragm pump, the filter and the hose are portable combined parts and are suitable for the automatic filtering operation of each mud pump cylinder sleeve washing cabin, when the whole automatic filtering system is connected to the bottom of the sedimentation cabin and the working cabin, a first discharge cock 1 and a second discharge cock 7 are firstly opened, then the pneumatic diaphragm pump 5 is started to suck out washing fluid and sediments from the bottom of the, the system repeatedly circulates and filters out sediments and impurities in flushing fluid through the Y-shaped filter, the filter element of the Y-shaped filter needs to be regularly checked and replaced in the circulating process, the filtering performance is ensured, all flushing fluid is finally circularly filtered completely, the use requirement of the system is met, another practical function of the system is that the derusting operation of a flushing cabin, the filling operation of the flushing fluid and the like can be completed, when the flushing cabin needs to be derusted, the derusting agent and fresh water can be firstly pumped into the cabin through the injection tee joint 2, then the derusting liquid is circulated at high speed between the settling cabin and the working cabin through the pneumatic diaphragm pump 5 to achieve the derusting purpose, when the flushing fluid is thoroughly replaced due, the first bleeder cock 1 and the second bleeder cock 7 are firstly opened to discharge and empty the original flushing fluid, then the new flushing fluid is pumped into the flushing cabin through the injection tee joint 3 through the pneumatic diaphragm pump 5, the steps of manually disassembling and assembling the flushing cabin, this cylinder liner washes cabin and has strained automatically and injection system has carried out local improvement and optimization based on current slush pump cylinder liner rinse-system, and can operate this system in the normal operating of slush pump and keep the cleanliness of flush fluid, improve the life of cylinder liner and piston, guarantee the high-efficient work of slush pump, to sum up this utility model technical scheme has not only avoided the cylinder liner washes the operating procedure that the cabin frequently dismantled, artifical cleanness and repacking, can avoid unnecessary waste and the parking maintenance cost of corresponding slush pump of flush fluid simultaneously.

Claims (2)

1. The utility model provides a mud pump cylinder liner washing cabin automatic filtration and injection system for well drilling which characterized in that: including first bleeder cock, injection tee bend, Y type filter, suction inlet hose, pneumatic diaphragm pump, outlet hose and second bleeder cock, it is connected with first bleeder cock to inject the tee bend, Y type filter with inject tee junction, suction inlet hose one end is connected with Y type filter, and the other end is connected with pneumatic diaphragm pump, outlet hose one end is connected with pneumatic diaphragm pump, and the other end is connected on the second bleeder cock.

2. The automatic filtering and injecting system for the flushing cabin of the cylinder sleeve of the mud pump for well drilling as claimed in claim 1, wherein: the first and second tapping cocks are ball valves.