CN115680562A - Stepless precision regulating water tap structure and water distributor - Google Patents
Stepless precision regulating water tap structure and water distributor Download PDFInfo
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- CN115680562A CN115680562A CN202110856097.6A CN202110856097A CN115680562A CN 115680562 A CN115680562 A CN 115680562A CN 202110856097 A CN202110856097 A CN 202110856097A CN 115680562 A CN115680562 A CN 115680562A
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Abstract
The utility model provides a no level difference precision adjustment water nozzle structure and water injection mandrel relates to oil gas exploitation instrument field. The water nozzle structure comprises a valve sleeve component and a valve core component which are coaxially arranged, and the valve core component moves along the axial direction and extends into or exits from the valve sleeve component; the valve sleeve assembly comprises a throttling assembly, the throttling assembly comprises a first throttling ring and a second throttling ring, the first throttling ring and the second throttling ring are arranged along the extending direction of the valve core assembly, the inner diameter of the first throttling ring is D1, the inner diameter of the second throttling ring is D2, the outer diameter of the valve core assembly is D, and D1 is larger than D2 and larger than D. This disclosed water injection well choke structure disposes the throttle subassembly in the valve barrel subassembly, and the throttle subassembly includes that two at least internal diameters are different, along the throttle ring of axial arrangement, can form different clearances to water injection well choke structure can realize the injection allocation demand of the little discharge capacity of high pressure.
Description
Technical Field
The disclosure relates to the field of oil and gas exploitation tools, in particular to a stepless precision adjusting water nozzle structure and a water distributor.
Background
With the continuous deep development of the oil field, the oil field enters the later development stage with high water content and high water content, and in order to solve the problem of the reduction of water drive efficiency caused by interlayer contradiction, a layered water injection process measure is adopted, when the oil field is injected with water in a layered mode, flow adjustment is carried out through a water nozzle of a water distributor, but due to the limitation of the structure of the water nozzle, the flow adjustment interval of the injection allocation of the water distributor is large, the adjustment curve is single, and when multi-stage and multi-section fine injection is carried out, the adjustment is difficult.
Disclosure of Invention
The utility model provides a no level difference fine adjustment faucet structure and water injection mandrel, can solve the injection allocation of water injection regulation flow interval of water injection mandrel big, divide the difficult problem of annotating the regulation.
The technical scheme is as follows:
in one aspect, a stepless precision adjusting water nozzle structure is provided, which comprises:
the valve sleeve component and the valve core component are coaxially arranged, and the valve core component moves along the axial direction to extend into or withdraw from the valve sleeve component;
the valve sleeve assembly comprises a throttling assembly, the throttling assembly comprises a first throttling ring and a second throttling ring, the first throttling ring and the second throttling ring are arranged along the extending direction of the valve core assembly, the inner diameter of the first throttling ring is D1, the inner diameter of the second throttling ring is D2, the outer diameter of the valve core assembly is D, and D1 is larger than D2 and larger than D are met.
In some embodiments, the valve housing assembly further comprises a third throttling ring, the third throttling ring is coaxially arranged with the first throttling ring and the second throttling ring, the inner diameter of the third throttling ring is D3, and D1 & gt D2 & gt D3 & gt D and D3-D & lt 10 μm are satisfied.
In some embodiments, the valve housing assembly further comprises a water outlet; the water outlet comprises a first hole-shaped area and a second hole-shaped area, the axial positions of the first hole-shaped area and the second hole-shaped area along the valve core assembly are different, the projection area of the first hole-shaped area in the cross section of the valve core assembly is S1, the projection area of the second hole-shaped area in the cross section of the axis of the valve core assembly is S2, and S1 is not equal to S2.
In some embodiments, the second hole-shaped area and the first hole-shaped area are sequentially arranged along the extending direction of the valve core assembly, and S1 is less than S2.
In some embodiments, the valve sleeve assembly comprises a first fixed body, a fixed water nozzle, a second fixed body and a water outlet, and the first fixed body, the fixed water nozzle, the throttling assembly and the second fixed body are sequentially arranged along the direction far away from the valve core assembly; the water outlet is arranged on the side wall of the fixed water nozzle.
In some embodiments, the valve sleeve assembly is further provided with a water inlet, the second fixing body is provided with a stepped hole, the stepped hole comprises a first stepped hole portion close to the valve core assembly and a second stepped hole portion far away from the valve core assembly, the inner diameter D4 of the first stepped hole portion is larger than the inner diameter D5 of the second stepped hole portion, and the water inlet is arranged on the side wall of the second stepped hole portion, so that D2 is greater than or equal to D4 and less than D3, and D5 is less than D; and a sealing ring is arranged on the inner wall of the first stepped hole part and is in sealing fit with the valve core assembly.
In some embodiments, the valve core assembly includes a core shaft and a movable water nozzle, the movable water nozzle is disposed at an end portion of the core shaft facing the valve housing assembly, an adjusting wheel is disposed at an end portion of the core shaft far away from the valve housing assembly, the adjusting wheel is in threaded connection with the core shaft, and the adjusting wheel can drive the core shaft to move axially when rotating.
In some embodiments, a guide cap is arranged at the end part of the movable water nozzle close to the valve sleeve assembly.
On the other hand, the water distributor comprises the stepless difference precise water regulating water nozzle structure;
the water distributor further comprises: the water faucet comprises a body, wherein an axial channel is arranged on the body, an end face cover is arranged at one axial end of the body, a water faucet cavity is also arranged on the side wall of the body, and the water faucet cavity is formed in the side wall of the body and extends from the end face of one end of the body to the other end of the body along the axial direction; the stepless difference precision adjusting water nozzle structure is arranged in the water nozzle cavity and is fixed through the end face cover.
In some embodiments, a rotating body is arranged in the axial passage, the stepless precision adjusting water nozzle structure comprises an adjusting wheel, the water nozzle cavity corresponds to an avoiding hole formed in the side wall of the adjusting wheel, the rotating body is meshed with the adjusting wheel through the avoiding hole, and the rotating body can drive the mandrel to rotate.
In some embodiments, the water distributor further includes a compensation assembly, the compensation assembly includes a compensation groove and a breather valve, the breather valve is slidably disposed in the compensation groove, the stepless precision adjusting water nozzle structure includes a movable water nozzle, the rotating body, the breather valve, the end cover and the movable water nozzle enclose a closed space, the closed space is filled with sealing oil, and the breather valve can slide along the compensation groove when the movable water nozzle moves along the axial direction to compensate for the volume change of the closed space.
In some embodiments, a bridge channel is further disposed on the sidewall of the body, and the bridge channel is parallel to the axial channel.
In some embodiments, a measurement and adjustment positioning body is further arranged in the axial direction of the body, the measurement and adjustment positioning body, the end face cover and the body are sequentially and fixedly connected by a fastening piece, a positioning portion for positioning a measurement and adjustment instrument is arranged on the measurement and adjustment positioning body, the water distributor comprises a rotating body, and the measurement and adjustment instrument is matched with the positioning portion to drive the rotating body to rotate.
The beneficial effect that technical scheme that this disclosure provided brought includes at least:
the utility model provides a there is not poor precision adjustment water nozzle structure of step disposes the throttle subassembly in the valve barrel subassembly, and the throttle subassembly includes that two at least internal diameters are different, along the throttle ring that the axial was arranged, forms cascaded clearance interval, moves along the axial when the case subassembly, changes its position back in rivers passageway, and the case subassembly can form different clearances with the valve barrel subassembly to the water nozzle structure can realize the injection allocation demand of the little discharge capacity of high pressure.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is apparent that the drawings in the description below are only some embodiments of the present disclosure, and it is obvious for those skilled in the art that other drawings may be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a stepless precision water tap structure provided by an embodiment of the present disclosure;
fig. 2 is a schematic structural view of a water outlet provided in the embodiment of the present disclosure;
fig. 3 is a schematic structural view of a valve sleeve assembly provided by an embodiment of the present disclosure;
fig. 4 is a schematic structural diagram of a second fixing body provided in the embodiment of the present disclosure;
FIG. 5 is a schematic structural view of a valve cartridge assembly provided by an embodiment of the present disclosure;
FIG. 6 is a schematic structural diagram of a water distributor provided by an embodiment of the disclosure;
FIG. 7 is an axial structural view of a body provided by an embodiment of the present disclosure;
fig. 8 is a graph of opening degree-pressure-flow rate of a stepless precision regulating water nozzle structure according to an embodiment of the present disclosure.
The reference numerals in the figures denote:
1. a valve housing assembly; 2. a valve core assembly; 3. measuring and adjusting a positioning body; 4. a rotating body; 5. an end face cover; 6. an end face seal ring; 7. a fastener; 8. a body; 8-1, axial channels; 8-2, a water nozzle cavity; 9. a lower joint; 10. a compensation component; 10-1, a breather valve; 10-2, a compensation groove; 11. an upper support; 12. a lower support; 13. an adjustment wheel; 14. a reset cover; 15. a reset spring; 16. a mandrel; 17. a movable water nozzle; 18. a guide cap; 19. a first fixed body; 20. fixing the water nozzle; 21. a throttle assembly; 21-1, a first restrictor ring; 21-2, a second restrictor ring; 21-3, a third throttling ring; 22. a seal ring; 23. a second fixed body; 23-1, a first stepped hole portion; 23-2, a second stepped hole portion; 24. a water outlet; 24-1, a first pore-shaped region; 24-2, a second pore-shaped region; 24-3, a third pore-shaped region; 25. a water inlet; 26. an upper joint; 27. an outer cylinder; 28. a bridge channel.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings.
When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.
It is to be understood that reference herein to "at least one" means one or more and "a plurality" means two or more. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship.
To make the objects, technical solutions and advantages of the present disclosure more apparent, embodiments of the present disclosure will be described in detail with reference to the accompanying drawings.
With reference to fig. 1 of the present disclosure, the present embodiment provides a step-difference-free precision adjusting faucet structure, which includes: the valve sleeve component 1 and the valve core component 2 are coaxially arranged, the valve sleeve component 1 and the valve core component 2 can move along the axial direction to extend into or withdraw from the valve sleeve component 1, the valve sleeve component 1 is provided with a water flow channel along the axial direction, and the valve core component 2 extends into or withdraws from the valve sleeve component to adjust the effective flow area of the water flow channel;
the valve sleeve component 1 comprises a throttling component 21, the throttling component 21 comprises a first throttling ring 21-1 and a second throttling ring 21-2, the first throttling ring 21-1 and the second throttling ring 21-2 are sequentially and coaxially arranged along the extending direction of the valve core component 2, the inner diameter of the first throttling ring 21-1 is D1, the inner diameter of the second throttling ring 21-2 is D2, the outer diameter of the valve core component 2 is D, and D1 is larger than D2 and larger than D are met.
According to the step-difference-free precise adjustment water nozzle structure provided by the embodiment of the disclosure, the throttle component 21 is configured in the valve sleeve component 1, the throttle component 21 comprises at least two throttle rings with different inner diameters and arranged along the axial direction, such as a first throttle ring 21-1 and a second throttle ring 21-2, a step-type gap interval is formed, when the valve core component 2 moves along the axial direction and changes the position of the valve core component in a water flow channel, the valve core component 2 and the valve sleeve component 1 can form different gaps, and therefore the step-difference-free precise adjustment water nozzle structure can meet the injection allocation requirement of high pressure and small displacement.
Optionally, the first throttling ring 21-1 and the second throttling ring 21-2 are made of metal materials, the first throttling ring 21-1 and the second throttling ring 21-2 have high strength and hardness, and the reliability and the durability of the throttling rings are high in a high-pressure environment, so that the reliability of the stepless precision adjusting water nozzle structure can be guaranteed.
Optionally, the clearance between each throttling ring and the outer diameter of the valve core assembly 2 is controlled to be 20-30 micrometers, and the valve core assembly 2 and the valve sleeve assembly 1 can form different micrometer-scale clearances, so that the step-difference-free precision adjusting water nozzle structure can meet the requirement of injection allocation with higher precision.
Through production verification, the step-difference-free precise regulating water nozzle structure of the embodiment can realize precise regulation of small injection allocation amount within 10 cubes by regulating and controlling different gaps between the valve core assembly 2 and the throttle ring and controlling the gap between the throttle ring and the valve core assembly 2 within a micron range, realize multi-section fine injection of a separate injection well, and better meet the technical requirements of various separate injection wells.
In some embodiments, as shown in fig. 1, the valve sleeve assembly 1 further includes a third orifice ring 21-3, the third orifice ring 21-3 is coaxially disposed with the first orifice ring 21-1 and the second orifice ring 21-2, and the third orifice ring 21-3 is disposed on a side of the second orifice ring 21-2 facing away from the valve core assembly 2, and the third orifice ring 21-3 has an inner diameter D3, which satisfies D1 > D2 > D3 > D, and D3-D < 10 μm.
Therefore, in the step-difference-free precision regulating water nozzle structure provided by the embodiment, the valve sleeve assembly 1 is internally provided with the third throttling ring 21-3, the inner diameter of the third throttling ring 21-3 is smaller than the gaps between the first throttling ring 21-1, the second throttling ring 21-2 and the valve core assembly 2 and is controlled to be less than 10 micrometers, and the third throttling ring 21-3 can achieve a better sealing effect.
In the step-difference-free precision regulating water nozzle structure of the embodiment, when the valve core component 2 moves to the position of the third throttling ring 21-3, the fit clearance between the valve core component and the third throttling ring is smaller than 10 micrometers, the step-difference-free precision regulating water nozzle structure slightly seeps, injection allocation is not influenced, and the water nozzle is effectively sealed in production.
Meanwhile, the step-difference-free precise adjustment water nozzle structure of the embodiment can avoid the use of contact sealing parts such as rubber rings and the like, and avoids the faults caused by aging and failure of rubber parts.
Optionally, the third throttling ring 21-3 is made of a metal material, so that the third throttling ring has high strength and hardness, and is high in reliability and durability in a high-pressure environment, so that the reliable sealing performance of the stepless precision adjustment water nozzle structure can be guaranteed.
In some embodiments, as shown in fig. 2, the valve housing assembly 1 is further provided with a water outlet 24; the water outlet 24 comprises a first hole-shaped area 24-1 and a second hole-shaped area 24-2, the positions of the first hole-shaped area 24-1 and the second hole-shaped area 24-2 along the axial direction of the valve core assembly 2 are different, the projection area of the first hole-shaped area 24-1 in the cross section of the valve core assembly 2 is S1, the projection area of the second hole-shaped area 24-2 in the cross section of the valve core assembly 2 is S2, and S1 is not equal to S2.
In this embodiment, the valve housing assembly 1 is provided with the water outlet 24, and the water outlet 24 in the valve housing assembly 1 is originally plugged by the valve core assembly 2, and along with the axial movement of the valve core assembly 2, especially when the valve core assembly 2 exits the water flow channel along the axial direction, the water outlet 24 can be opened at different opening degrees, and the water injection amount of the water outlet 24 is different at different opening degrees.
On the basis of throttling of the throttling component 21, the water outlet 24 is designed to be a combined water outlet 24 with different projection areas, so that different water injection quantities can be adjusted under different opening degrees and different pressures, the adjustment interval is further refined, and multi-section fine injection of a separate injection well is facilitated.
Optionally, the shape of the water outlet 24 may be formed by combining narrow-strip-shaped holes, wide-strip-shaped holes, trapezoidal holes, circular holes and other holes, the first hole-shaped area 24-1 and the second hole-shaped area 24-2 may respectively adopt narrow-strip-shaped holes, wide-strip-shaped holes, trapezoidal holes, circular holes and other holes, and the transition portion of each hole is in smooth transition, so that the flow curve can be adjusted smoothly without sudden change.
Optionally, as shown in fig. 2, the second hole-shaped area 24-2 and the first hole-shaped area 24-1 are sequentially arranged along the extending direction of the valve core assembly 2, so that S1 is greater than S2.
The projection area of the first hole-shaped area 24-1 of the present embodiment is smaller than that of the second hole-shaped area 24-2, that is, the more the valve core assembly 2 extends into the valve sleeve assembly 1, the smaller the opening degree of the water outlet 24 is, the smaller the water injection amount is, until the water outlet 24 is completely closed, otherwise, the larger the opening degree is.
In some embodiments, referring to fig. 3, the valve sleeve assembly 1 includes a first fixed body 19, a fixed water nozzle 20, a second fixed body 23, and a water outlet 24, and the first fixed body 19, the fixed water nozzle 20, the throttling assembly 21, and the second fixed body 23 are coaxially arranged in sequence in a direction away from the valve core assembly 2; the water outlet 24 is arranged on the side wall of the fixed water nozzle 20.
The no level difference fine adjustment water nozzle structure of this embodiment, two fixed bodies are installed fixed water nozzle 20 and the fixed mode of throttle subassembly 21 about adopting, and form the rivers passageway in the valve barrel subassembly 1, case subassembly 2 slidable mounting is in rivers passageway, through the fixed body, fixed water nozzle 20, the clearance of throttle subassembly 21 regulation and control and case subassembly 2, realize the reliable assembly of no level difference fine adjustment water nozzle structure, guarantee the reliability of no level difference fine adjustment water nozzle structure, realize different apertures, adjust out different water injection volumes under the different pressure.
In some embodiments, as shown in fig. 4, the valve sleeve assembly 1 is further provided with a water inlet 25, the second fixing body 23 is provided with a stepped hole, the stepped hole includes a first stepped hole portion 23-1 close to the valve core assembly 2 and a second stepped hole portion 23-2 far from the valve core assembly 2, an inner diameter D4 of the first stepped hole portion 23-1 is larger than an inner diameter D5 of the second stepped hole portion 23-2, the water inlet 25 is provided on a side wall of the second stepped hole portion 23-2, and D2 is greater than or equal to D4 and less than D3, and D5 is less than D.
In this embodiment, the water inlet 25 is disposed at a side of the valve sleeve assembly 1 opposite to the valve core assembly 2, that is, water flows into the second fixed body 23 from the water inlet 25, sequentially passes through the third throttle ring 21-3, the second throttle ring 21-2, the first throttle ring 21-1 and the fixed water nozzle 20, and finally flows out from the water outlet 24.
Optionally, a sealing ring 22 is disposed on an inner wall of the first stepped hole portion 23-1, and the sealing ring 22 can be in sealing fit with the valve core assembly 2. When the sealing ring 22 is in sealing fit with the valve core assembly 2, the stepless precision regulating water nozzle structure is in a completely closed state.
When the stepless difference precise regulating water nozzle structure works, water flow firstly passes through the water inlet 25 and turns of the stepped hole, partial water flow energy is consumed, and the water flow can be prevented from directly impacting the valve core assembly 2. Then, water flows into the first stepped hole portion 23-1 from the second stepped hole portion 23-2 with a larger inner diameter, the washing of the inner wall of the first stepped hole portion 23-1 is weakened, the sealing ring 22 on the inner wall of the first stepped hole portion 23-1 can be protected, the sealing ring 22 is prevented from being washed away or damaged by the water flow, and therefore complete sealing of the stepless precision adjusting water nozzle structure can be achieved after the valve core assembly 2 moves to the sealing ring 22.
In some embodiments, as shown in fig. 5, the valve core assembly 2 includes a core shaft 16 and a movable water nozzle 17, the movable water nozzle 17 is disposed at an end of the core shaft 16 facing the valve housing assembly 1, an adjusting wheel 13 is disposed at an end of the core shaft 16 away from the valve housing assembly 1, the adjusting wheel 13 is in threaded connection with the core shaft 16, and the core shaft 16 can be driven to move axially when the adjusting wheel 13 rotates.
The embodiment provides an axial adjustment mode of the valve core assembly 2, the adjustment wheel 13 is in threaded connection with the mandrel 16 by rotating the adjustment wheel 13, the adjustment wheel 13 and the mandrel 16 form a nut and screw rod adjustment system, and the mandrel 16 can axially move by rotating the adjustment wheel 13.
Optionally, the valve core assembly 2 further includes a lower support 12, the lower support 12 is screwed on the first fixing body 19, the lower support 12 and the mandrel 16 are designed with D-shaped holes, and are mutually matched and assembled together to prevent the mandrel 16 from rotating, so that the rotation of the regulating wheel 13 is converted into the up-and-down movement of the mandrel 16.
Optionally, the valve core assembly 2 further includes a reset cover 14 and a reset spring 15, the reset cover 14 is disposed on a lower end surface of the lower support 12, the reset spring 15 is disposed outside the reset cover 14, a lower end of the reset spring 15 abuts against an upper end surface of the movable water nozzle 17, and the reset spring 15 is used for providing an axially downward reset pre-tightening force for the valve core assembly 2.
In some embodiments, as shown in fig. 5, the movable nozzle 17 is provided with a guide cap 18 at the end near the valve housing assembly 1.
In this embodiment, the effect of direction cap 18 is to the drainage of leading to rivers, prevents that rivers transition from impacting case subassembly 2, causes case subassembly 2 to reciprocate the difficulty, influences the regulation ability of no level difference precision adjustment faucet structure.
The stepless difference precision regulating water nozzle structure provided by the embodiment realizes multi-level fine separated water distribution by arranging three throttling rings in the valve sleeve component 1, wherein the first two throttling rings form different gaps with the valve core component 2, the third throttling ring 21-3 realizes the sealing function meeting the production requirement by realizing the micro-gap sealing with the valve core component 2, and meanwhile, the multi-level fine separated water of a separated injection well is realized by matching with the water outlet 24 in a combined shape, so that the technical requirements of various separated injection wells are better met.
Fig. 8 is a graph of opening-pressure-flow rate of the stepless precision regulating water nozzle structure provided by the present disclosure, in which the horizontal coordinate displacement represents the axial moving distance of the valve core assembly 2, the vertical coordinate flow rate represents the flow rate of the stepless precision regulating water nozzle structure, and different curves represent the trend of the flow rate under different pressures P along with the displacement change of the valve core assembly 2.
As shown in fig. 8, when the displacement is 0mm to 4mm, the flow is zero, which indicates that the stepless precision regulating water nozzle structure is not opened, and when the displacement exceeds 4mm, the flow gradually increases with the increase of the displacement, and it can be seen from the curve that the rate of change of the flow increasing with the displacement does not significantly increase with the increase of the pressure, and the flow curve is smooth and has no sudden change, which indicates that the stepless precision regulating water nozzle structure disclosed by the present disclosure has stable flow regulation and smooth regulation curve, can effectively solve the problems of sealing failure of the water distributor, difficulty in fine injection regulation, and the like, and better satisfies the technical requirements of various injection wells.
With reference to fig. 6 to 7, an embodiment of the present disclosure further provides a water distributor, including the above step-difference-free precise water-regulating water nozzle structure; further comprising: the water tap comprises a body 8, wherein an axial channel 8-1 is arranged on the body 8, an end face cover 5 is arranged at one end of the body 8 along the axial direction, a water tap cavity 8-2 is further arranged on the side wall of the body 8, the water tap cavity 8-2 is formed in the side wall of the body 8, and extends from the end face of one end of the body 8 to the other end of the body 8 along the axial direction;
the stepless difference precision adjusting water nozzle structure is arranged in the water nozzle cavity 8-2 and is fixed through the end face cover 5, and an end face sealing ring 6 with a sealing function is arranged between the end face cover 5 and the body 8.
Optionally, the water nozzle cavity 8-2 is a through stepped circular channel, a large circular stepped hole is designed at the upper end, a small circular stepped hole is designed at the position adjacent to the large circular stepped hole, and threads are machined at the upper end and the lower end of the small circular stepped hole.
Wherein, a liquid outlet hole is designed at the middle position of the small circular stepped hole close to the outer wall, which corresponds to the water outlet 24 of the stepless difference precise adjustment water nozzle structure, a liquid inlet hole is designed at the lower end of the small circular stepped hole close to the central axis, which corresponds to the water inlet 25 of the stepless difference precise adjustment water nozzle structure.
The water nozzle cavity 8-2 on the body 8 is internally provided with a second fixing body 23, a throttling component 21, a fixed water nozzle 20 and a first fixing body 19 from bottom to top in sequence, the body 8 is in threaded connection with the second fixing body 23, and the body 8 is in threaded connection with the first fixing body 19, so that the stepless difference precise regulating water nozzle is completely and reliably fixed on the body 8.
In some embodiments, as shown in fig. 6, a rotating body 4 is disposed in the axial channel 8-1, the step-less precision adjusting water nozzle structure includes an adjusting wheel 13, a relief hole is disposed on a side wall of the water nozzle cavity 8-2 corresponding to the adjusting wheel 13, the rotating body 4 is engaged with the adjusting wheel 13 through the relief hole, and the rotating body 4 rotates to drive the spindle 16 to rotate.
Therefore, the rotating body 4 is driven to rotate through the transmission part on the well, the adjusting wheel 13 is driven to rotate, the axial displacement of the valve core assembly 2 can be controlled, the matching relation between the valve core assembly 2 and the throttling assembly 21 is adjusted, the opening degree of the water outlet 24 is adjusted, and the sub-divided injection type water distribution is realized.
In some embodiments, as shown in fig. 6, the water distributor further includes a compensation assembly 10, the compensation assembly 10 includes a compensation groove 10-2 and a breather valve 10-1, the breather valve 10-1 is slidably disposed in the compensation groove 10-2, the stepless precision water nozzle adjusting structure includes a movable water nozzle 17, a closed space is enclosed by the rotating body 4, the breather valve 10-1, the end cover 5 and the movable water nozzle 17, the closed space is filled with sealing oil, and the breather valve 10-1 can slide along the compensation groove 10-2 when the movable water nozzle 17 moves axially to compensate for volume variation of the closed space.
Therefore, the inner and outer parts of the rotating structure in the water distributor are sealed, so that the invasion of external silt is avoided, and meanwhile, the inside of the water distributor is filled with sealing oil, so that the water distributor has the functions of corrosion prevention and lubrication.
Optionally, an upper support 11 is disposed at the upper end of the mandrel 16, and the upper support 11 is matched with the end cover 5 to support the upper end of the mandrel 16.
Meanwhile, the compensation groove 10-2 and the mandrel 16 are coaxially arranged on the measuring and adjusting positioning body 3 to play a role in displacement compensation along the axial direction of the upper support 11 upwards until the measuring and adjusting positioning body 3 is communicated.
In some embodiments, as shown in fig. 7, a bridge channel 28 is further provided on the sidewall of the body 8, and the bridge channel 28 is parallel to the axial channel 8-1 and can be used for water flow.
The water distributor of the embodiment adopts a central measuring and adjusting mode, after a measuring and adjusting instrument is put down to the water distributor, the axial channel 8-1 is blocked, and in order to continuously supply water to the tubular columns below the water distributor, the side wall of the body 8 is provided with the bridge type channel 28 capable of replacing the axial channel 8-1 to supply water, so that the water distributor can supply water to the current working surface and the previous lower tubular columns at the same time.
In some embodiments, as shown in fig. 6, a measurement and adjustment positioning body 3 is further disposed in an axial direction of the body 8, the measurement and adjustment positioning body 3, the end surface cover 5, and the body 8 are sequentially and fixedly connected by a fastening member 7, a positioning portion for positioning a measurement and adjustment instrument is disposed on the measurement and adjustment positioning body 3, the water distributor includes a rotating body 4, and the measurement and adjustment instrument can drive the rotating body 4 to rotate after being matched with the positioning portion.
When the flow is required to be regulated and controlled, the measuring and regulating instrument is placed at a preset position, namely, after the positioning is carried out through the positioning part, the measuring and regulating instrument rotates to drive the rotating body 4 to rotate, the rotating body 4 drives the regulating wheel 13 to rotate, the regulating wheel 13 drives the mandrel 16, the movable water nozzle 17 and the guide cap 18 to integrally move up and down, the water outlet 24 of the fixed water nozzle 20 is sealed and opened, and the movable water nozzle 17 moves to different positions to fix the water nozzle 20 and open corresponding opening degrees.
Optionally, the upper part of the body 8 in the axial direction is connected with an upper joint 26 through an outer cylinder 27 in a threaded manner, the lower part of the body 8 in the axial direction is connected with a lower joint 9 in a threaded manner, and the upper joint 26 and the lower joint 9 are used for facilitating connection of the water distributor and the pipe columns at the upper end and the lower end respectively.
The water distributor of the embodiment can effectively prevent the sealing failure of the water regulating water nozzle of the water distributor, can regulate the minimum injection amount within 10 cubic meters during measurement and regulation, can also regulate the large injection amount, realizes the multi-stage and multi-section fine injection of the injection well, and better meets the technical requirements of various injection wells.
The above-mentioned embodiments are merely examples of the present disclosure, which is not intended to limit the present disclosure, and any modifications, equivalents, improvements, etc. made within the spirit and principle of the present disclosure should be included in the scope of the present disclosure.
Claims (12)
1. The utility model provides a no level difference fine adjustment faucet structure which characterized in that includes:
the valve sleeve component (1) and the valve core component (2) are coaxially arranged, and the valve core component (2) axially moves to extend into or withdraw from the valve sleeve component (1);
the valve sleeve component (1) comprises a throttling component (21), the throttling component (21) comprises a first throttling ring (21-1) and a second throttling ring (21-2), the first throttling ring (21-1) and the second throttling ring (21-2) are arranged along the extending direction of the valve core component (2), the inner diameter of the first throttling ring (21-1) is D1, the inner diameter of the second throttling ring (21-2) is D2, the outer diameter of the valve core component (2) is D, and D1 is larger than D2 and larger than D are met.
2. The stepless fine adjustment water nozzle structure according to claim 1, wherein the valve sleeve assembly (1) further comprises a third throttling ring (21-3), the third throttling ring (21-3) is coaxially arranged with the first throttling ring (21-1) and the second throttling ring (21-2), and the inner diameter of the third throttling ring (21-3) is D3, and D1 > D2 > D3 > D and D3-D < 10 μm are satisfied.
3. The stepless precision regulating water nozzle structure according to claim 1, characterized in that the valve sleeve component (1) is further provided with a water outlet (24); the water outlet (24) comprises a first hole-shaped area (24-1) and a second hole-shaped area (24-2), the axial positions of the first hole-shaped area (24-1) and the second hole-shaped area (24-2) along the valve core assembly (2) are different, the projection area of the first hole-shaped area (24-1) in the cross section of the valve core assembly (2) is S1, the projection area of the second hole-shaped area (24-2) in the cross section of the valve core assembly (2) is S2, and S1 is not equal to S2.
4. The stepless precision water-regulating valve structure according to claim 3, wherein the second hole-shaped area (24-2) and the first hole-shaped area (24-1) are sequentially arranged along the extending direction of the valve core assembly (2), and S1 is less than S2.
5. The stepless difference precise regulating water nozzle structure according to claim 1, wherein the valve sleeve component (1) comprises a first fixed body (19), a fixed water nozzle (20), a second fixed body (23) and a water outlet (24), and the first fixed body (19), the fixed water nozzle (20), the throttling component (21) and the second fixed body (23) are sequentially arranged along a direction far away from the valve core component (2); the water outlet (24) is arranged on the side wall of the fixed water nozzle (20).
6. The stepless precision regulating water nozzle structure according to claim 5, characterized in that the valve sleeve assembly (1) is further provided with a water inlet (25), the second fixing body (23) is provided with a stepped hole, the stepped hole comprises a first stepped hole portion (23-1) close to the valve core assembly (2) and a second stepped hole portion (23-2) far away from the valve core assembly (2), the inner diameter D4 of the first stepped hole portion (23-1) is larger than the inner diameter D5 of the second stepped hole portion (23-2), and the water inlet (25) is arranged on the side wall of the second stepped hole portion (23-2) to satisfy that D2 is more than or equal to D4 and less than D3, and D5 is less than D; and a sealing ring (22) is arranged on the inner wall of the first stepped hole part (23-1), and the sealing ring (22) is in sealing fit with the valve core assembly (2).
7. The stepless precision regulating water nozzle structure according to any one of claims 1-6, characterized in that the valve core assembly (2) comprises a mandrel (16) and a movable water nozzle (17), the movable water nozzle (17) is arranged at the end of the mandrel (16) facing the valve sleeve assembly (1), the end of the mandrel (16) far away from the valve sleeve assembly (1) is provided with a regulating wheel (13), the regulating wheel (13) is in threaded connection with the mandrel (16), and the mandrel (16) is driven to move axially when the regulating wheel (13) rotates.
8. A water distributor comprising a step-less precision-adjusting nozzle structure as claimed in any one of claims 1 to 7;
the water distributor further comprises: the water tap comprises a body (8), wherein an axial channel (8-1) is formed in the body (8), an end face cover (5) is arranged at one axial end of the body (8), a water tap cavity (8-2) is further formed in the side wall of the body (8), and the water tap cavity (8-2) is formed in the side wall of the body (8) and extends from the end face of one end of the body (8) to the other end of the body (8) along the axial direction; the stepless difference precision adjusting water nozzle structure is arranged in the water nozzle cavity (8-2) and is fixed through the end face cover (5).
9. The water distributor according to claim 8, wherein a rotating body (4) is arranged in the axial passage (8-1), the stepless precision adjusting water nozzle structure comprises an adjusting wheel (13), an avoiding hole is formed in the side wall, corresponding to the adjusting wheel (13), of the water nozzle cavity (8-2), the rotating body (4) is meshed with the adjusting wheel (13) through the avoiding hole, and the rotating body (4) rotates to drive the spindle (16) to rotate.
10. The water distributor according to claim 9, further comprising a compensation assembly (10), wherein the compensation assembly (10) comprises a compensation groove (10-2) and a breather valve (10-1), the breather valve (10-1) is slidably disposed in the compensation groove (10-2), the stepless precision adjustment water nozzle structure comprises a movable water nozzle (17), the rotating body (4), the breather valve (10-1), the end cover (5) and the movable water nozzle (17) enclose a closed space, the closed space is filled with sealing oil, and the breather valve (10-1) slides along the compensation groove (10-2) when the movable water nozzle (17) moves along the axial direction to compensate for volume variation of the closed space.
11. A water distributor as claimed in claim 8, wherein a bridge channel (28) is also provided on the side wall of the body (8), said bridge channel (28) being parallel to the axial channel (8-1).
12. The water distributor according to any one of claims 8 to 11, wherein the body (8) is further provided with a measuring and adjusting positioning body (3) in an axial direction, the measuring and adjusting positioning body (3), the end face cover (5) and the body (8) are sequentially and fixedly connected by a fastening member (7), the measuring and adjusting positioning body (3) is provided with a positioning portion for positioning a measuring and adjusting instrument, the water distributor comprises a rotating body (4), and the measuring and adjusting instrument is matched with the positioning portion to drive the rotating body (4) to rotate.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110856097.6A CN115680562A (en) | 2021-07-28 | 2021-07-28 | Stepless precision regulating water tap structure and water distributor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110856097.6A CN115680562A (en) | 2021-07-28 | 2021-07-28 | Stepless precision regulating water tap structure and water distributor |
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| CN115680562A true CN115680562A (en) | 2023-02-03 |
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| CN202110856097.6A Pending CN115680562A (en) | 2021-07-28 | 2021-07-28 | Stepless precision regulating water tap structure and water distributor |
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