Self-adaptively adjustable wellhead pressure detector for mine water storage well

Abstract

The utility model discloses a mine water storage well mouth pressure detector capable of self-adaptively adjusting, which relates to the technical field of mine water geological storage and comprises a shell, a fixing cylinder, a fixing lifting lug and a fixing pipe I. An adjusting mechanism is arranged on the inner wall of the bottom of the shell, and a limiting mechanism is connected above the adjusting mechanism. The limiting mechanism penetrates through the outer arc wall of the shell in the radial direction in a sliding mode, the adjusting mechanism comprises an inner gear ring rotationally connected to the inner wall of the bottom of the shell, the inner side of the inner gear ring is in meshed connection with a driven gear, and a fixed gear is coaxially fixed to the top end of the driven gear; according to the utility model, the limiting mechanism can be driven by the adjusting mechanism to stretch out and draw back so as to adapt to drill holes with different sizes, the flexibility and adaptability of installation are improved, and the sensor can be better attached to the inner wall of the drill hole during installation due to the design of the limiting mechanism, so that the measurement accuracy is improved; and the measurement error caused by a gap between the sensor and the inner wall of the drill hole is also reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to mine water geological storage technical field, concretely is a mine water storage well wellhead pressure detector that can be self -adaptation adjustment. BACKGROUND

[0002] Mine water geological storage refers to the mine water produced in the mine production process, through specific geological structure and storage technology, it is safe, effective and stored in the ground, to prevent its adverse effects on the environment and human activities, this storage mode usually involves injecting mine water into the deep underground abandoned mine, aquifer or other suitable geological structure, and using the natural closure of geological structure to store mine water for a long time.

[0003] In the existing mine water geological storage project, the pre-buried pressure detection device is a key link, however, the drilling difficulty and size under different geological conditions are different, and due to the difference of geological conditions, the size of the drilling is often difficult to accurately match the size of the sensor, which may cause the sensor to not closely fit the inner wall of the drilling during installation, and then cause the sensor to tilt during subsequent filling and fixing, thereby affecting the accuracy of measurement.

[0004] Therefore, the present application is proposed. UTILITY MODEL CONTENT

[0005] The utility model discloses a mine water storage well wellhead pressure detector that can be self -adaptation adjustment, to solve the problem in the background art.

[0006] To solve the above technical problems, the utility model provides a mine water storage well wellhead pressure detector that can be self -adaptation adjustment, including casing, fixed cylinder, fixed lug and fixed pipe no.

[0007] The limiting mechanism includes a piston cylinder no. fixed to one end of the rack plate away from the casing, the outer arc wall of the piston cylinder no. is fixed with two fixed pipes no. on the opposite sides of the one end close to the inside of the casing, the one end of the fixed pipe no. away from the piston cylinder no. is rotatably connected with a piston cylinder no. two, the piston cylinder no. two is arranged away from the inside of the casing, and the one end of the piston cylinder no. and the two piston cylinder no. two away from the casing is rotatably connected with a vertical limiting plate, and the adjacent two limiting plates are connected with a same connecting block.

[0008] The top end of the outer arc wall of the shell is fixed with four fixed lugs arranged in a ring shape in the axial direction of the shell, and a fixed pipe one is arranged at the center of the top of the shell and penetrates the top of the shell and is connected with the valve.

[0009] Further, four fixed cylinders horizontally arranged are fixed on the outer arc wall of the shell, the length direction of the fixed cylinders is consistent with the radial direction of the shell, the fixed cylinders are hollow structures along the length direction, limit mechanisms are arranged in the four fixed cylinders, limit plates and connecting blocks are arranged outside the end of the fixed cylinders away from the shell, and the piston rod one is arranged at the end of the fixed cylinders inside close to the shell.

[0010] Further, a pressure sensor is fixed and connected at the center of the inner wall of the bottom of the shell, a valve is fixed at the top end of the pressure sensor, a connecting pipe one is fixed on the outer arc wall of the valve, the end of the connecting pipe one away from the valve is fixed on the outer arc wall of the piston cylinder one, the connecting pipe one is connected with the valve and the connecting pipe one, a one-way valve is arranged at the connection position of the valve and the connecting pipe one, the one-way valve only allows one-way conduction from the valve to the connecting pipe one, the piston rod one is slidably connected to the end of the piston cylinder one inside close to the shell, a return spring is arranged on the outer arc wall of the end of the piston cylinder two away from the piston cylinder one, the inside of the fixed pipe two and the inside of the piston cylinder one are arranged to be penetrated to each other, the outer arc wall of the piston cylinder two corresponding to the fixed pipe two is connected with the same hose, and the hose is connected with the fixed pipe two and the piston cylinder two corresponding to the fixed pipe two.

[0011] Further, the piston rod one is fixed with a vertical pressing plate at the end away from the piston cylinder one, the four pressing plates are arranged on different horizontal planes, the sides of the four pressing plates close to each other are respectively abutted with the outer side walls of the pressure sensors, the inner side of the inner tooth ring is meshingly connected with four driven gears, the four driven gears are one-to-one corresponding to the four fixed cylinders and the four limit mechanisms, the inner side of the inner tooth ring is further meshingly connected with a driving gear, the driving gear is arranged away from the driven gears, the top of the driving gear is fixed with a motor, the outer side wall of the motor is fixed with a fixed plate, and the fixed plate is fixed on the inner wall of the bottom of the shell.

[0012] Further, the piston cylinder one is axially parallel to the radial direction of the shell, the length direction of the limit plate is perpendicular to the axial direction of the piston cylinder one, grooves are arranged on the side walls of the two ends of the limit plate along the length direction, the same connecting block is rotatably connected in the corresponding grooves on the side walls of the two adjacent limit plates close to each other, and the two ends of the limit plate along the length direction are both rounded.

[0013] Compared with the prior art, the utility model has the advantages that:

[0014] 1、Through the adjusting mechanism can drive the limiting mechanism telescopic, thereby adapting to different size of drilling, improve the flexibility and adaptability of installation, the design of limiting mechanism makes the sensor can better fit the inner wall of drilling hole when installation, this not only improves the accuracy of measurement, but also reduces the measurement error caused by the gap between the sensor and the inner wall of drilling hole.

[0015] 2、The limiting mechanism can also reduce the influence of stratum movement on the sensor to a certain extent, when the inner wall of the hole deforms such as collapse due to non-geological sealing effect, the limiting mechanism can continue to adapt to the inner wall, thereby maintaining the stability of measurement. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is an internal structure diagram of the middle shell of a mine water sealing well wellhead pressure detector which can be self-adaptively adjusted.

[0017] Figure 2 It is a connection relationship diagram of the adjusting mechanism and the limiting mechanism of a mine water sealing well wellhead pressure detector which can be self-adaptively adjusted.

[0018] Figure 3 It is a structure diagram of the limiting mechanism of a mine water sealing well wellhead pressure detector which can be self-adaptively adjusted.

[0019] Figure 4 It is a whole structure diagram of a mine water sealing well wellhead pressure detector which can be self-adaptively adjusted.

[0020] In the drawings:

[0021] 10, shell; 11, fixed cylinder; 12, fixed lug; 13, fixed pipe one; 14, valve; 15, connecting pipe one; 16, pressure sensor; 17, pressing plate;

[0022] 20, motor; 21, driving gear; 22, inner tooth ring; 23, driven gear; 24, fixed gear; 25, rack plate;

[0023] 30, piston cylinder one; 31, fixed pipe two; 32, piston cylinder two; 33, return spring; 34, piston rod one; 35, limiting plate; 36, connecting block. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0025] Please refer to the attached Figure 1 to the attached Figure 4 The utility model provides a kind of wellhead pressure detector of mine water storage well that can be self-adapting adjustment, including shell 10, fixed cylinder 11, fixed lug 12 and fixed pipe one 13, the bottom inner wall of shell 10 is equipped with adjusting mechanism, adjusting mechanism upper side is connected with limit mechanism, limit mechanism is radially slidably arranged along the outer arc wall of shell 10, adjusting mechanism includes the inner tooth ring 22 rotationally connected on the bottom inner wall of shell 10, the inside of inner tooth ring 22 is engagedly connected with driven gear 23, the top of driven gear 23 is coaxially fixed with fixed gear 24, one side of fixed gear 24 is engagedly connected with horizontal rack plate 25, rack plate 25 is connected on limit mechanism;

[0026] Limit mechanism includes piston cylinder one 30 fixed to one end of rack plate 25 away from shell 10, the end of piston cylinder one 30 outer arc wall close to shell 10 inside is fixed with fixed pipe two 31 on two sides in horizontal direction, the end of fixed pipe two 31 away from piston cylinder one 30 is rotationally connected with piston cylinder two 32, piston cylinder two 32 is arranged away from shell 10 inside, the end of piston cylinder one 30 and two described piston cylinder two 32 away from shell 10 is rotationally connected with vertical limit plate 35, same connecting block 36 is connected between adjacent two limit plates 35;

[0027] The outer arc wall of shell 10 is fixed with four horizontally arranged fixed cylinders 11, the length direction of fixed cylinder 11 is consistent with the radial direction of shell 10, and the fixed cylinder 11 is hollow along the length direction, limit mechanism is arranged in four described fixed cylinders 11, limit plate 35 and connecting block 36 are arranged on the outside of one end of fixed cylinder 11 away from shell 10, piston rod one 34 is located on the inside of one end of fixed cylinder 11 close to shell 10;

[0028] The bottom inner wall center of shell 10 is fixedly connected with pressure sensor 16, the top of pressure sensor 16 is fixed with valve 14, valve 14 outer arc wall is fixed with connecting pipe one 15, the end of connecting pipe one 15 away from valve 14 is fixed on the outer arc wall of piston cylinder one 30, and connecting pipe one 15 is connected with valve 14 and connecting pipe one 15, one-way valve is arranged at the connection of valve 14 and connecting pipe one 15, one-way valve only allows the one-way communication of valve 14 to connecting pipe one 15, the top of shell 10 outer arc wall is fixed with four fixed lugs 12, which are annularly arranged in the axial direction of shell 10, fixed pipe one 13 is arranged at the center of the top of shell 10, and fixed pipe one 13 penetrates the top of shell 10 and is connected with valve 14.

[0029] It needs to be explained: start motor 20, drive driving gear 21 rotation, driving gear 21 rotation drive four driven gear 23 synchronous rotation, driven gear 23 rotation drive fixed gear 24 and rack plate 25 along the shell 10 radial movement, rack plate 25 drive piston cylinder one 30 and fixed tube two 31 synchronous movement, fixed tube two 31 drive piston cylinder two 32 through the hose, piston cylinder one 30, piston cylinder two 32 synchronous drive limit plate 35 along the shell 10 radial extension;

[0030] Fixed tube one 13 is used for protecting the connection power line and data transmission line, and the other is used for protecting the air inlet pipe for the valve 14, the driven gear 23 and the fixed gear 24 are coaxially fixed on the same vertical line, the fixed shaft is penetrated through the fixed gear 24 and is rotatably connected to the inner wall of the top of the shell 10, the length direction of the rack plate 25 is consistent with the length direction of the fixed cylinder 11, and the rack plate 25 is not in contact with the piston cylinder one 30 and the piston rod one 34;

[0031] The fixed lug 12 is convenient for installing fixed cable or other devices to put the equipment into the hole bottom.

[0032] Please refer to the attached Figure 1 to the attached Figure 4 The utility model provides a technical scheme: the piston rod one 34 is slidably connected to the one end of the piston cylinder one 30 close to the inside of the shell 10, the reset spring 33 is sleeved on the outer arc wall of the one end of the piston cylinder two 32, the inside of the fixed tube two 31 and the inside of the piston cylinder one 30 are mutually penetrated, the outer arc wall of the piston cylinder two 32 on the side corresponding to the fixed tube two 31 is connected with the same hose, and the hose is connected with the fixed tube two 31 and the piston cylinder two 32 on the side corresponding to the fixed tube two 31.

[0033] The piston rod one 34 is fixed with the vertical setting pressure plate 17 at the one end away from the piston cylinder one 30, the four pressure plates 17 are located on different horizontal planes respectively, and the sides close to each other of the four pressure plates 17 are respectively in contact with the outer side walls of the pressure sensors 16.

[0034] The inside of the inner tooth ring 22 is meshingly connected with the four driven gears 23, the four driven gears 23 are corresponding to the four fixed cylinders 11 and the four limiting mechanisms one, the inner tooth ring 22 is also meshingly connected with the driving gear 21, the driving gear 21 is arranged away from the driven gear 23, the motor 20 is fixed on the top of the driving gear 21, the fixed plate is fixed on the outer side wall of the motor 20, and the fixed plate is fixed on the inner wall of the bottom of the shell 10.

[0035] The piston cylinder one 30 is axially parallel to the shell 10 radially, the length direction of the limiting plate 35 is perpendicular to the axial direction of the piston cylinder one 30, recesses are formed on the side walls of the two ends of the limiting plate 35 along the length direction, and a connecting block 36 is rotatably connected in the corresponding recess on the side wall of the two limiting plates 35 close to each other, and the two ends of the limiting plate 35 along the length direction are both rounded.

[0036] It should be noted that: the piston cylinder one 30 includes a piston cylinder and a piston rod two sliding at the end of the piston cylinder one 30 away from the shell 10, the piston cylinder one 30 and the piston cylinder two 32 are similar in structure, the piston cylinder one 30, the fixed tube two 31 and the piston cylinder two 32 are all filled with sufficient gas, the fixed tube one 13 is provided with an air inlet pipe connected with the valve 14, so that the gas can pass through the valve 14 to the connecting pipe one 15 and then be transmitted to the piston cylinder one 30, and the reset spring 33 is used to reset the piston cylinder two 32;

[0037] The fixed tube two 31 is fixed with a limiting ring inside close to one end of the piston cylinder one 30, and a piston plate slides inside close to one side of the piston cylinder one 30, the cross-sectional radius of the piston plate is greater than that of the inner arc wall of the limiting ring, further, the cross-sectional radius of the inner arc wall of the end of the piston cylinder one 30 away from the shell 10 is smaller than that of the end of the piston cylinder one 30 close to the shell 10, the cross-sectional radius of the inner arc wall of the fixed tube two 31 is the same as that of the piston cylinder two 32, and the cross-sectional radius of the inner arc wall of the piston cylinder two 32 is smaller than that of the end of the piston cylinder one 30 away from the shell 10;

[0038] When the adjusting mechanism drives the four limiting mechanisms to move synchronously, the limiting plate 35 connected to the end of the piston cylinder one 30 will first abut against the inner wall of the hole, the reaction force makes the piston cylinder one 30 retract, at this time, the gas is more likely to drive the piston plate inside the fixed tube two 31 to move, and then the piston cylinder two 32 is extended, the limiting plates 35 on both sides are pushed to the inner wall of the hole, and better abutment is achieved, and when the formation changes, the piston cylinder one 30 and the fixed tube two 31 will retract at this time, and then the piston rod one 34 is forced to extend, the pressure plate 17 is pressed to press the pressure sensor 16, and then the pressure value is read.

[0039] Working principle:

[0040] Start the motor 20, drive the driving gear 21 to rotate, the driving gear 21 drives the inner gear ring 22 to rotate, and then drives the four driven gears 23 to rotate synchronously, the driven gears 23 drive the fixed gear 24 and the rack plate 25 to move along the radial direction of the shell 10, the rack plate 25 drives the piston cylinder one 30 and the fixed tube two 31 to move synchronously, and the limiting plate 35 abuts against the inner wall of the hole;

[0041] When the limiting plate 35 abuts against the inner wall of the hole, if the formation pressure changes, the piston cylinder 30 and the fixed tube 31 will be forced to retract, thereby pushing the piston rod 34 to extend, and the piston rod 34 drives the pressure plate 17 to press the pressure sensor 16, and the pressure sensor 16 converts the pressure signal into an electrical signal output;

[0042] The reset spring 33 is used to reset the piston cylinder 2, ensure the system response sensitivity, the one-way valve ensures that the gas only flows from the valve 14 to the connecting tube 1 15 in one direction, prevents backflow, the fixed tube 1 13 is used to protect the line and air inlet, the fixed lug 12 facilitates the installation and fixation of the device, and the whole system realizes the accurate measurement of the pressure in the geological storage hole through the combination of mechanical transmission and pneumatic transmission.

Claims

1. An adaptively adjustable wellhead pressure detector for mine water storage wells, comprising a housing (10), a fixed cylinder (11), a fixed lifting lug (12), and a fixed pipe (13), characterized in that: An adjustment mechanism is provided on the inner wall of the bottom of the housing (10). A limiting mechanism is connected above the adjustment mechanism. The limiting mechanism is slidably arranged radially through the outer arc wall of the housing (10). The adjustment mechanism includes an inner gear ring (22) rotatably connected to the inner wall of the bottom of the housing (10). A driven gear (23) is meshed on the inner side of the inner gear ring (22). A fixed gear (24) is coaxially fixed at the top of the driven gear (23). A horizontal rack plate (25) is meshed on one side of the fixed gear (24). The rack plate (25) is connected to the limiting mechanism. The limiting mechanism includes a piston cylinder 1 (30) fixed to the end of the rack plate (25) away from the housing (10). The outer arc wall of the piston cylinder 1 (30) near the inside of the housing (10) is fixed with two fixing tubes 2 (31) on opposite sides in the horizontal direction. The end of the fixing tube 2 (31) away from the piston cylinder 1 (30) is rotatably connected to the piston cylinder 2 (32). The piston cylinder 2 (32) is set away from the inside of the housing (10). The piston cylinder 1 (30) and the two piston cylinders 2 (32) are rotatably connected with vertically arranged limiting plates (35) at the ends away from the housing (10). The same connecting block (36) is connected between two adjacent limiting plates (35).

2. The adaptively adjustable wellhead pressure detector for mine water storage wells as described in claim 1, characterized in that: Four horizontally arranged fixed cylinders (11) are fixed on the outer arc wall of the housing (10). The length direction of the fixed cylinder (11) is consistent with the radial direction of the housing (10), and the fixed cylinder (11) is hollow along its length direction. Each of the four fixed cylinders (11) is provided with a limiting mechanism. The limiting plate (35) and the connecting block (36) are both located on the outer side of the fixed cylinder (11) away from the housing (10). The piston rod (34) is located on the inner side of the fixed cylinder (11) near the end of the housing (10).

3. The adaptively adjustable wellhead pressure detector for mine water storage wells as described in claim 1, characterized in that: A pressure sensor (16) is fixedly connected to the center of the bottom inner wall of the housing (10). A valve (14) is fixed to the top of the pressure sensor (16). A connecting pipe (15) is fixed to the outer arc wall of the valve (14). The end of the connecting pipe (15) away from the valve (14) is fixed to the outer arc wall of the piston cylinder (30) and the connecting pipe (15) connects the valve (14) and the connecting pipe (15). A one-way valve is provided at the connection between the valve (14) and the connecting pipe (15). The one-way valve only allows one-way flow from the valve (14) to the connecting pipe (15).

4. The adaptively adjustable wellhead pressure detector for mine water storage wells as described in claim 1, characterized in that: A piston rod (34) is slidably connected to one end of the piston cylinder (30) near the inside of the housing (10). A return spring (33) is sleeved on the outer arc wall of the end of the piston cylinder (32) away from the piston cylinder (32). The interior of the fixing tube (31) is interconnected with the interior of the piston cylinder (30). The fixing tube (31) and the piston cylinder (32) on the corresponding side of the fixing tube (31) are connected to the same flexible hose. The flexible hose connects the fixing tube (31) and the piston cylinder (32) on the corresponding side of the fixing tube (31).

5. The adaptively adjustable wellhead pressure detector for mine water sealing wells as described in claim 4, characterized in that: The piston rod (34) is fixed with a vertically arranged pressure plate (17) at one end away from the piston cylinder (30). The four pressure plates (17) are located on different horizontal planes, and the sides of the four pressure plates (17) that are close to each other abut against the outer wall of the pressure sensor (16).

6. The adaptively adjustable wellhead pressure detector for mine water storage wells as described in claim 1, characterized in that: The inner side of the internal gear ring (22) is meshed with four driven gears (23). The four driven gears (23) correspond one-to-one with the four fixed cylinders (11) and the four limiting mechanisms. The inner side of the internal gear ring (22) is also meshed with a driving gear (21). The driving gear (21) is set away from the driven gears (23). A motor (20) is fixed on the top of the driving gear (21). A fixing plate is fixed on the outer side wall of the motor (20). The fixing plate is fixed on the bottom inner wall of the housing (10).

7. The adaptively adjustable wellhead pressure detector for mine water storage wells as described in claim 1, characterized in that: The piston cylinder (30) is axially parallel to the radial direction of the housing (10). The length direction of the limiting plate (35) is perpendicular to the axial direction of the piston cylinder (30). The limiting plate (35) has grooves on the side walls at both ends along its length direction. The same connecting block (36) is rotatably connected in the corresponding grooves on the side walls of two adjacent limiting plates (35) that are close to each other. Both ends of the limiting plate (35) along its length direction are rounded.

8. The adaptively adjustable wellhead pressure detector for mine water storage wells as described in claim 1, characterized in that: The top of the outer arc wall of the housing (10) is fixed with four fixed lugs (12) arranged in a ring array about the axial direction of the housing (10). A fixed tube (13) is provided at the center of the top of the housing (10). The fixed tube (13) passes through the top of the housing (10) and is connected to the valve (14).

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