阅读说明：本技术 一种钻井泵的延长喷淋水使用寿命结构 (Structure for prolonging service life of spray water of drilling pump ) 是由 黄秀芳 于 2021-08-16 设计创作，主要内容包括：本发明公开了一种钻井泵的延长喷淋水使用寿命结构,涉及石油工程设备领域,具体涉及一种钻井泵的延长喷淋水使用寿命结构,包括钻井泵吸入阀箱、排出阀箱、缸套、机架缸套腔、喷淋水回流盒、底座水箱、喷淋水挡板、喷淋水活动底板、更换易损件专用通道、喷淋水高位导流板、喷淋水低位导流板、喷淋水导流兼挡板,在钻井泵液力端更换活塞、阀体、阀座等易损件清洗内腔的污液有专门的通道排出到井场的污水池,不污染喷淋水,在钻井泵液力端工作期间的喷淋水在底座水箱设置的13个腔的不断沉淀后,保证喷淋水的清洁度,底座水箱的热交换面积大,散热能力强,降低了喷淋水的温度,既提高了活塞缸套的寿命,又使喷淋水的使用寿命得到延长。(The invention discloses a structure for prolonging the service life of spray water of a well drilling pump, which relates to the field of petroleum engineering equipment, in particular to a structure for prolonging the service life of the spray water of the well drilling pump, comprising a well drilling pump suction valve box, a discharge valve box, a cylinder sleeve, a frame cylinder sleeve cavity, a spray water reflux box, a base water tank, a spray water baffle, a spray water movable bottom plate, a special channel for replacing wearing parts, a spray water high-level guide plate, a spray water low-level guide plate and a spray water guide baffle, wherein the dirty liquid of a wearing part cleaning inner cavity of a piston, a valve body, a valve seat and the like at the hydraulic end of the well drilling pump is discharged to a sewage pool of a well site through a special channel without polluting the spray water, the cleanliness of the spray water is ensured after the spray water is continuously precipitated in 13 cavities arranged in the base water tank during the working period of the hydraulic end of the well drilling pump, the heat exchange area of the base water tank is large, the heat dissipation capability is strong, and the temperature of the spray water is reduced, the service life of the piston cylinder sleeve is prolonged, and the service life of the spray water is prolonged.)

1. A structure for prolonging the service life of spray water of a drilling pump is characterized by comprising a suction valve box (1), a discharge valve box (2), a cylinder sleeve (3), a rack cylinder sleeve cavity (4), a spray water reflux box (5), a base water tank (6), a spray water baffle (7), a spray water movable bottom plate (8), a special channel (9) for replacing a quick-wear part, a spray water high-level guide plate (10), a spray water low-level guide plate (11) and a spray water diversion and baffle plate (12);

a spraying water outlet 4.1 is arranged in the frame cylinder sleeve cavity (4);

there are 1 st chamber (6.1) in base water tank (6), 2 nd chamber (6.2), 3 rd chamber (6.3), 4 th chamber (6.4), 5 th chamber (6.5), 6 th chamber (6.6), 7 th chamber (6.7), 8 th chamber (6.8), 9 th chamber (6.9), 10 th chamber (6.10), 11 th chamber (6.11), 12 th chamber (6.12), 13 th chamber (6.13), 5 th chamber and 6 th chamber passageway (6.14), 10 th chamber and 11 th chamber passageway (6.15), 11 th chamber and 12 th chamber passageway (6.16), shower water filter (6.17).

2. The structure for prolonging the service life of the spray water of the well drilling pump as claimed in claim 1, when the quick-wear parts such as the piston, the valve body and the valve seat are replaced at the hydraulic end of the well drilling pump, the movable bottom plate (8) of the spray water enables the special channel (9) for replacing the quick-wear part to be communicated with the 1 st cavity (6.1), the dirty liquid which is used for flushing the suction valve box 1, the discharge valve box 2 and the inner cavity of the cylinder sleeve 3 and is adhered with the slurry directly flows into the 12 th cavity (6.12) through the special channel (9) for replacing the quick-wear part and the spray water outlet (4.1), the spray water reflux box (5) and the spray water outlet of other cavities in the bottom water box can not be polluted, and the service life of the spray water is prolonged.

3. The structure for prolonging the service life of the spray water of the well drilling pump as claimed in claim 1, wherein during the operation of the hydraulic end of the well drilling pump, the spray water movable bottom plate (8) cuts off the channel of the special channel (9) and the 1 st cavity (6.1), the spray water after cooling the piston cylinder liner flows into the 1 st cavity (6.1) through the spray water outlet (4.1) and the spray water reflux box (5), and then sequentially passes through the 1 st cavity (6.1), the 2 nd cavity (6.2), the 3 rd cavity (6.3), the 4 th cavity (6.4), the 5 th cavity (6.5), the 6 th cavity (6.6), the 7 th cavity (6.7), the 8 th cavity (6.8), the 9 th cavity (6.9), the 10 th cavity (6.10), the 11 th cavity (6.11), the 12 th cavity (6.12) and the 13 th cavity (6.13) in the base water tank (6.17) and is pumped out to the spray water filter for cleaning the piston cylinder liner due to different functions of high-water-level and lubrication of the base, under the action of flow guide, the rock debris and sand particles are gradually precipitated in the spray water, and the spray water entering the piston cylinder sleeve keeps cleaner.

4. The structure for prolonging the service life of the spray water of the well drilling pump as claimed in claim 1, wherein the surface area of the base water tank meter (1) is large, the larger the area of the heat of the spray water conducted to the environment is, the more the temperature of the spray water is reduced, the stronger the lower ability of the spray water to cool the cylinder sleeve piston is, the longer the service life of the cylinder sleeve piston is, the less slurry flows into the spray water through the gap of the piston cylinder sleeve, the longer the service life of the spray water is, and a virtuous cycle is formed.

Technical Field

The invention relates to the field of petroleum engineering equipment, in particular to a structure for prolonging the service life of spray water of a drilling pump.

Background

In the hydraulic end of a borehole pump, a piston and a cylinder sleeve are a group of key components for realizing the functions of the borehole pump, and the piston and the cylinder sleeve are harsh in working conditions, easy to wear and frequently required to be replaced and are generally called wearing parts. Under the same use conditions, the service lives of the cylinder sleeve pistons with different qualities are different, for example, the service life of the piston is as long as more than 1000 hours under the working condition of water-based mud, and the service life of the piston is as short as tens of hours. The service life of the piston cylinder sleeve is too low, so that the repair time of the pump stop is increased, and meanwhile, the cylinder sleeve piston is frequently disassembled and assembled, and other parts of the drilling pump are easily damaged. It can therefore be said that the quality and life of the drill pump piston liner determines to a considerable extent the level of the entire drill pump.

The existing drilling pumps are single-acting pistons, the front ends of the pistons are in direct contact with slurry, spray water is sprayed towards the rear ends of the pistons in the slurry suction stroke and the slurry discharge stroke of the pistons, the spray water lubricates, cleans and cools a piston cylinder sleeve, the service life of the piston cylinder sleeve is directly related to the quality of the spray water, the cleaner the spray water is, the more the lubricating and cleaning action capacity of the piston cylinder sleeve is, the lower the temperature of the spray water is, and the stronger the cooling capacity of the piston cylinder sleeve is.

The spray water is continuously polluted in the using process, and the mud at the front end of the piston inevitably enters the spray water to pollute the spray water in the working process of the drilling pump; in the process of replacing wearing parts such as a cylinder sleeve, a piston and the like, the slurry remained in the inner cavity of the hydraulic cylinder directly enters the spraying water to flush the matching surface in the hydraulic cylinder. The slurry contains rock debris and sand particles, and the spray water also contains the rock debris and the sand particles, so that abrasive wear can occur in the relative sliding of the piston and the cylinder sleeve.

The spray water of the drilling site is transported from other places, the cost is very high, the polluted spray water needs to be replaced in time, the replaced polluted spray water needs to be subjected to environment-friendly treatment without pollution to the environment, and the cost of the environment-friendly treatment is very high.

The pollution degree of the spray water is reduced, the service life of the spray water is prolonged, and the drilling cost can be reduced, so that the structure for prolonging the service life of the spray water of the drilling pump becomes a problem to be solved urgently.

Disclosure of Invention

The invention aims to provide a structure for prolonging the service life of spray water of a drilling pump.

The technical scheme of the invention is as follows:

the technical scheme of the invention comprises a suction valve box, a discharge valve box, a cylinder sleeve, a frame cylinder sleeve cavity, a spray water backflow box, a base water tank, a spray water baffle, a spray water movable bottom plate, a special channel for replacing a wearing part, a spray water high-position guide plate, a spray water low-position guide plate, a spray water guide baffle and a spray water outlet, a 1 st cavity, a 2 nd cavity, a 3 rd cavity, a 4 th cavity, a 5 th cavity, a 6 th cavity, a 7 th cavity, an 8 th cavity, a 9 th cavity, a 10 th cavity, an 11 th cavity, a 12 th cavity, a 13 th cavity, a 5 th cavity and a 6 th cavity channel, a 10 th cavity and an 11 th cavity channel, an 11 th cavity and a 12 th cavity channel and a spray water filter.

When the hydraulic end of the drilling pump is used for replacing wearing parts such as a piston, a valve body, a valve seat and the like, firstly, the movable bottom plate of the spray water is pushed to the 2 nd cavity of the base water tank from the 1 st cavity, and a special channel for replacing wearing parts is communicated with the 1 st cavity. When the wearing parts such as the piston, the valve body, the valve seat and the like are replaced, the slurry adhered to the inner cavities of the suction valve box, the discharge valve box and the cylinder sleeve needs to be washed, the washed dirty liquid containing the slurry directly flows into the 12 th cavity through the spray water outlet, the spray water backflow box and the wearing part replacement special channel, and the 12 th cavity is the lowest position in the base water tank, so that the dirty liquid is pumped into a sewage pool of a drilling site by the submersible pump, the spray water in other cavities in the base water tank cannot be polluted, and the service life of the spray water is prolonged.

During the operation of the hydraulic end of the drilling pump, the spray water movable bottom plate is pushed back to the 1 st cavity from the 2 nd cavity of the base water tank, the channel of the special channel and the 1 st cavity is cut off, and the flow path of the spray water is as follows: spray water for cooling the piston cylinder sleeve flows into a 2 nd cavity through a spray water outlet, a 1 st cavity, a high-level spray plate turning over the spray water, flows into a 3 rd cavity from a low-level spray plate of the spray water, flows into a 4 th cavity through a high-level spray plate of the spray water, flows into a 5 th cavity from the low-level spray plate of the spray water, flows into a 6 th cavity through channels of the 5 th cavity and the 6 th cavity, flows into a 7 th cavity from the low-level spray plate of the spray water, flows into a 8 th cavity through the high-level spray plate of the spray water, flows into a 9 th cavity through the low-level spray plate of the spray water, flows into a 10 th cavity through the high-level spray plate of the spray water, flows into a 11 th cavity through channels of the 10 th cavity and the 11 th cavity, flows into a channel port of the 11 th cavity and the 12 th cavity, flows into a 12 th cavity with the lowest position of the base water tank, flows into a 13 th cavity, and is finally sucked away by a spray water pump through a spray water filter and enters into a pipeline for cooling the piston cylinder sleeve, the shower water enters the next circulation route.

The spray water for cooling the piston cylinder sleeve of each cylinder of the drilling pump must flow into the No. 1 cavity through the spray water backflow box, then enters each cavity of the base water tank, finally flows to the spray water filter, and passes through the long route, and each cavity gradually deposits rock debris and sand contained in the spray water, so that the cleanness and sanitation of the spray water entering the piston cylinder sleeve are guaranteed, the abrasion speed of the piston cylinder sleeve is reduced, the slurry is reduced from flowing into the spray water through the gap of the piston cylinder sleeve, the service life of the spray water is prolonged, and a virtuous cycle is formed.

The larger the surface area of the base water tank is, the larger the area of the heat of the spray water conducted to the environment is, the more the temperature of the spray water is reduced, the stronger the capability of the lower spray water for cooling the cylinder sleeve piston is, the longer the service life of the cylinder sleeve piston is, the more the gap of the slurry passing through the piston cylinder sleeve is reduced, the flow of the slurry into the spray water is prolonged, and a virtuous cycle is formed.

Drawings

FIG. 1 is a schematic cross-sectional view of a hydraulic end replacement piston, a valve body and a valve seat wearing part of a structure for prolonging service life of spray water of a drilling pump;

FIG. 2 is an enlarged view of portion A of FIG. 1;

FIG. 3 is a schematic cross-sectional view of a wellbore pump during hydraulic operation in a configuration for extending the service life of spray water according to the present invention

FIG. 4 is an enlarged view of portion B of FIG. 3 during operation of the fluid end;

FIG. 5 is a cross-sectional view taken along line M-M of FIG. 3;

FIG. 6 is a cross-sectional view A-A of FIG. 5;

FIG. 7 is a cross-sectional view B-B of FIG. 5;

FIG. 8 is a cross-sectional view C-C of FIG. 5;

FIG. 9 is a cross-sectional view D-D of FIG. 8;

FIG. 10 is a cross-sectional view E-E of FIG. 9;

FIG. 11 is a cross-sectional view F-F of FIG. 5;

fig. 12 is a G-G sectional view of fig. 5.

The reference numbers are as follows:

1-suction valve box, 2-discharge valve box, 3-cylinder sleeve, 4-frame cylinder sleeve cavity, 5-spray water reflux box, 6-base water tank, 7-spray water baffle, 8-spray water movable bottom plate, 9-special channel for replacing wearing parts, 10-spray water high-level guide plate, 11-spray water low-level guide plate, 12-spray water guide baffle, 4.1-spray water outlet, 6.1-1 st cavity, 6.2-2 nd cavity, 6.3-3 rd cavity, 6.4-4 th cavity, 6.5-5 th cavity, 6.6-6 th cavity, 6.7-7 th cavity, 6.8-8 th cavity, 6.9-9 th cavity, 6.10 th cavity, 6.11-11 th cavity, 6.12-12 th cavity, 6.13-13 th cavity, 6.14-5 th cavity and 6 th cavity channel, 6.15-10 th cavity and 11 th cavity channel, 6.16-11 th cavity and 12 th cavity channel, and 6.17-spray water filter.

Detailed Description

The invention is further described with reference to the following figures and detailed description.

The embodiments of the present invention are not limited to the following examples, and various changes made without departing from the spirit of the present invention are within the scope of the present invention.

Referring to fig. 1 to 2, the structure for prolonging the service life of the spray water of the borehole pump in the embodiment includes a suction valve box 1, a discharge valve box 2, a cylinder sleeve 3, a frame cylinder sleeve cavity 4, a spray water backflow box 5, a base water box 6, a spray water baffle 7, a spray water movable bottom plate 8, a wearing part replacement dedicated channel 9, a spray water high-position baffle 10, a spray water low-position baffle 11, a spray water diversion and baffle 12, a spray water outflow port 4.1, a 1 st cavity 6.1, a 2 nd cavity 6.2, a 3 rd cavity 6.3, a 4 th cavity 6.4, a 5 th cavity 6.5, a 6 th cavity 6.6, a 7 th cavity 6.7, an 8 th cavity 6.8, a 9 th cavity 6.9, a 10 th cavity 6.10, a 11 th cavity 6.11, a 12 th cavity 6.12, a 13 th cavity 6.13, a 5 th cavity and a 6.14, a 10 th cavity and a spray water backflow box 6.15, a spray water movable bottom plate 8, a wearing part dedicated channel 16.6.4, 6.5, a filter.

Referring to fig. 1 and 2, when the hydraulic end of the drilling pump is replaced by wearing parts such as a piston, a valve body, a valve seat and the like, the movable bottom plate 8 of the spray water is pushed from the 1 st cavity 6.1 to the 2 nd cavity 6.2 of the base water tank, so that the special channel 9 for replacing wearing parts is communicated with the 1 st cavity 6.1. When wearing parts such as a piston, a valve body, a valve seat and the like are replaced, slurry adhered to inner cavities of the suction valve box 1, the discharge valve box 2 and the cylinder sleeve 3 needs to be washed, the washed dirty liquid containing the slurry directly flows into a 12 th cavity 6.12 through a spray water outlet 4.1, a spray water backflow box 5 and a wearing part replacement special channel 9, the 12 th cavity 6.12 is the lowest position in the base water tank, the dirty liquid is pumped into a sewage pool of a drilling site by a submersible pump, the dirty liquid cannot pollute spray water in other cavities in the base water tank, and therefore the service life of the spray water is prolonged.

Referring to fig. 3 and 4, during the operation of the hydraulic end of the borehole pump, the spray water movable bottom plate 8 is pushed back into the 1 st cavity 6.1 from the 2 nd cavity 6.2 of the base water tank, the channel between the special channel 9 and the 1 st cavity 6.1 is cut off, and the spray water for cooling the piston cylinder sleeve flows into the 1 st cavity 6.1 through the spray water outlet 4.1 and the spray water return box 5.

Referring to fig. 5 and 6, after the spray water flows into the 1 st cavity 6.1, the spray water turns over the high-level flow guide plate 10 of the spray water and flows into the 2 nd cavity 6.2, the spray water in the 2 nd cavity 6.2 flows into the 3 rd cavity 6.3 from the low-level flow guide plate 11 of the spray water, the spray water in the 3 rd cavity 6.3 turns over the high-level flow guide plate 10 of the spray water and flows into the 4 th cavity 6.4, and the spray water in the 4 th cavity 6.4 flows into the 5 th cavity 6.5 from the low-level flow guide plate 11 of the spray water.

Referring to fig. 5 and 7, the shower water entering the 5 th chamber 6.5 enters the 6 th chamber 6.6 through the 5 th chamber and 6 th chamber passages 6.14.

Referring to fig. 5 and 8, the shower water entering the 6 th cavity 6.6 flows into the 7 th cavity 6.7 through the low-level shower plate 11, the shower water entering the 7 th cavity 6.7 flows into the 8 th cavity 6.8 through the high-level shower plate 10, the shower water entering the 8 th cavity 6.8 flows into the 9 th cavity 6.9 through the low-level shower plate 11, the shower water entering the 9 th cavity 6.9 flows into the 10 th cavity 6.10 through the high-level shower plate 10, and the shower water entering the 10 th cavity 6.10 enters the 11 th cavity through the 10 th cavity and the 11 th cavity 6.15.

Referring to fig. 8 and 9, the shower water enters the 11 th cavity and then flows to the 11 th cavity and the 12 th cavity channel 6.16 which are far away from the 10 th cavity and the 11 th cavity channel 6.15.

Referring to fig. 9 and 10, shower water from chamber 1 flows from the 11 th and 12 th chamber passages 6.16 to the 12 th chamber 6.12 with the lowest base tank position.

Referring to fig. 5 and 11, the spray water entering the 11 th cavity enters the 13 th cavity 6.13, is finally sucked away by the spray water pump through the spray water filter 6.17 and enters the pipeline for cooling the piston cylinder sleeve, and the spray water enters the next circulation route.

Referring to fig. 5 and 12, the spray water for cooling the piston bore liner of each cylinder of the borehole pump must flow into the chamber 1, 6.1, through the spray water return box 5. Then the slurry enters each cavity of the base water tank, finally flows to the spray water filter 6.17, and passes through the long route, the rock debris and sand particles contained in the spray water are gradually precipitated in each cavity, the cleanness and sanitation of the spray water entering the piston cylinder sleeve are ensured, the abrasion speed of the piston cylinder sleeve is reduced, the slurry is reduced to flow into the spray water through the gap of the piston cylinder sleeve, the service life of the spray water is prolonged, and a virtuous cycle is formed.

The larger the surface area of the base water tank is, the larger the area of the heat of the spray water conducted to the environment is, the more the temperature of the spray water is reduced, the stronger the capability of the lower spray water for cooling the cylinder sleeve piston is, the longer the service life of the cylinder sleeve piston is, the more the gap of the slurry passing through the piston cylinder sleeve is reduced, the flow of the slurry into the spray water is prolonged, and a virtuous cycle is formed.

The above detailed description of the embodiments of the present invention is provided in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art, and these changes are within the protection of the present invention and also within the protection scope of the present invention.