Soil gas monitoring well wellbay

Abstract

The utility model relates to the technical field of a wellbay of a soil gas monitoring well, and particularly discloses a wellbay of a soil gas monitoring well, which comprises a pipeline, a fixing mechanism arranged on the outer side of the pipeline and used for stably fixing the wellbay on the ground, and a sealing mechanism arranged above the fixing mechanism and used for sealing the pipeline. And the pipeline penetrates through the fixing mechanism and is adaptively connected with the sealing mechanism. During use, the supporting base with the height capable of being adjusted through the stud in the fixing mechanism is matched with the supporting arms distributed in the circumferential direction, different ground flatness can be flexibly adapted, repeated construction is avoided, resource waste is reduced, the six sealing plates of the sealing mechanism are driven by hydraulic pressure to synchronously adjust the opening and closing amplitude, and pipelines with different diameters can be adapted; reliable sealing of pipelines of various specifications is achieved, the sealing mechanism can be rapidly opened or closed through hydraulic control, the efficiency of operation such as sampling and equipment maintenance is improved, and standardized and efficient sealing operation on different well platforms is truly achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to soil gas monitoring well well platform technical field, concretely is a kind of soil gas monitoring well well platform. BACKGROUND

[0002] Soil gas monitoring well well platform is the core basic component of soil gas monitoring system, mainly used to provide stable, reliable operating carrier and environmental protection for soil gas monitoring operation, sealing wellhead area, the gap between monitoring pipeline and wellhead is closed, prevent outside air, rainwater or sundries from mixing into well, while avoiding the leakage of soil gas to be monitored in well, guarantee the authenticity and accuracy of monitoring data, it is the key functional component in soil and groundwater remediation engineering.

[0003] Due to the different specifications of field pipeline, the traditional fixed well cover cannot be used universally, leading to repeated construction and resource waste, in the operation of temporarily opening wellhead for sampling, equipment maintenance and the like, the sealing performance of fixed well cover depends on the initial installation of sealing ring, sealing glue or structural fit, each time temporarily opening, sealing element (such as rubber ring) can be deformed due to disassembly stress, aging or loss, if the specifications do not match (such as the thickness of sealing ring does not match the gap of new pipeline) or installation is not in place (such as uneven screwing tightness of bolt), it will lead to sealing failure of wellhead. For this reason, we propose a kind of soil gas monitoring well well platform. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of soil gas monitoring well well platform to solve the problem of sealing element (such as rubber ring) that can be deformed due to disassembly stress, aging or loss each time temporarily opening, if the specifications do not match (such as the thickness of sealing ring does not match the gap of new pipeline) or installation is not in place (such as uneven screwing tightness of bolt), it will lead to sealing failure of wellhead in the above background art.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of soil gas monitoring well well platform, comprising: pipeline, pipeline outer side is equipped with fixed mechanism, fixed mechanism is stably fixed to ground by well platform, sealing mechanism is equipped above fixed mechanism, sealing mechanism is sealed to pipeline, pipeline is passed through fixed mechanism and is connected with sealing mechanism adaptation.

[0006] Wherein, fixed mechanism includes the support arm located in the outer side of pipeline, support arm is fixedly connected with screw sleeve inside, screw sleeve is threadedly connected with stud, support arm is provided with reserved hole above, stud passes through reserved hole, stud bottom is fixedly connected with support base, support arm is fixedly connected with frame.

[0007] The sealing mechanism comprises a fixed ring fixedly connected to the frame, a connecting plate fixedly connected to the fixed ring, a hydraulic rod fixedly connected to the connecting plate, an active seat fixedly connected to the end of the hydraulic rod, a starting rod rotatably connected to the active seat, a fixed seat rotatably connected to the starting rod, a sealing plate fixedly connected to the fixed seat, a rotating shaft rotatably connected to the rear end of the sealing plate, a fixed column fixedly connected to the rotating shaft, and six sealing plates.

[0008] The connecting part of the support arm and the frame is provided with a reinforcing rib.

[0009] The top end of the stud is fixedly connected with a rotating handle.

[0010] The six sealing plates are evenly distributed along the circumference of the fixed ring, and the lower side of each sealing plate is provided with a sealing gasket.

[0011] The inner side surface of the sealing gasket is an arc-shaped curved surface matched with the lower wall of the sealing plate, and the edge is chamfered.

[0012] The support base is a square flat plate structure, and the diameter of the support base is greater than the diameter of the stud.

[0013] The fixed ring and the connecting plate are detachably fixedly connected through a flange structure, and the connecting plate is evenly distributed along the circumference of the fixed ring.

[0014] The fixed ring is an annular structure.

[0015] The utility model at least has the following beneficial effects:

[0016] In use, the support base with adjustable height through the stud in the fixed mechanism, in cooperation with the circumferentially distributed support arm, can flexibly adapt to different ground flatness, avoid repeated construction, reduce resource waste, the six sealing plates of the sealing mechanism are synchronously adjusted in opening and closing amplitude through hydraulic drive, can adapt to different diameter pipelines, realize reliable sealing of various specifications of pipeline, hydraulic control makes the sealing mechanism can be quickly opened or closed, improves the efficiency of sampling, equipment maintenance and the like operation, truly realizes the standardization, high efficient sealing operation on different well platforms. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a whole structure schematic view of the utility model;

[0018] Figure 2 It is a fixed mechanism schematic view of the utility model;

[0019] Figure 3 It is a fixed mechanism local enlarged schematic view of the utility model;

[0020] Figure 4 It is a sealing mechanism schematic view of the utility model;

[0021] Figure 5 The bottom view of the sealing mechanism.

[0022] In the figure: 1, pipeline; 2, fixing mechanism; 21, support arm; 22, spiral sleeve; 23, stud; 24, reserved hole; 25, support base; 26, frame; 3, sealing mechanism; 31, fixed ring; 32, connecting plate; 33, hydraulic rod; 34, movable seat; 35, starting rod; 36, fixed seat; 37, sealing plate; 38, rotating shaft; 39, fixed column; 4, reinforcing rib; 5, rotating handle; 6, sealing gasket. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present application will be clearly and completely described 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.

[0024] Embodiment one

[0025] Please refer to Figures 1 to 5 The present application provides a technical solution: a soil gas monitoring well station, comprising: a pipeline 1, the outer side of the pipeline 1 is provided with a fixing mechanism 2, the fixing mechanism 2 stably fixes the well station on the ground, a sealing mechanism 3 is arranged above the fixing mechanism 2, the sealing mechanism 3 seals the pipeline 1, the pipeline 1 penetrates through the fixing mechanism 2 and is adaptively connected with the sealing mechanism 3, when the well station is installed, the bottom end of the pipeline 1 is first lowered into the well body of the soil gas monitoring well, so that the top end of the pipeline 1 extends above the ground; then the pipeline 1 and the whole well station are fixed on the ground by the fixing mechanism 2, so as to ensure that the pipeline 1 does not shake or deviate during the monitoring process, after the fixing is completed, the sealing mechanism 3 is started to seal the gap between the pipeline 1 and the top of the well body and the parts of the pipeline 1 that need to be sealed, so as to avoid the mixing of external air or the leakage of well gas.

[0026] The fixing mechanism 2 includes a support arm 21 located outside the pipe 1. A spiral sleeve 22 is fixedly connected inside the support arm 21, and a stud 23 is threaded onto the spiral sleeve 22. A pre-drilled hole 24 is provided above the support arm 21, through which the stud 23 passes. A support base 25 is fixedly connected to the bottom of the stud 23. A frame 26 is fixedly connected to the support arm 21. During installation, the fixing mechanism 2 is first wrapped around the outside of the pipe 1, and the frame 26 is made to fit against the outer wall of the pipe 1, ensuring that the support arm 21 is evenly distributed around the pipe 1. Then, by rotating the stud 23, the stud 23 is... 3. Move downwards along the thread direction of the spiral sleeve 22. After the stud 23 passes through the reserved hole 24, it drives the bottom support base 25 to gradually approach the ground. Continue to rotate the stud 23 until the support base 25 is tightly pressed on the ground. If the ground is uneven, the stud 23 on different support arms 21 can be adjusted to keep the frame 26 in a horizontal state, thereby ensuring that the pipeline 1 is in a vertical and stable state. The fixed connection between the frame 26 and the support arm 21 can distribute the force of the pipeline 1 to each support arm 21, and then transmit it to the ground through the support base 25 to achieve the stable fixation of the well platform.

[0027] The sealing mechanism 3 includes a fixed ring 31 fixedly connected to the frame 26. A connecting plate 32 is fixedly connected to the fixed ring 31. A hydraulic rod 33 is fixedly connected to the connecting plate 32. A movable seat 34 is fixedly connected to the end of the hydraulic rod 33. A starting rod 35 is rotatably connected to the movable seat 34. A fixed seat 36 is rotatably connected to the starting rod 35. A sealing plate 37 is fixedly connected to the fixed seat 36. A rotating shaft 38 is rotatably connected to the rear end of the sealing plate 37. A fixed column 39 is fixedly connected to the rotating shaft 38 and is fixedly connected to the fixed ring 31. There are six sealing plates 37. When sealing the pipeline 1 is required, the hydraulic rod 33 starts and retracts, pulling the movable seat 34 at its end towards the connecting plate 32. The movable seat 34 drives the starting rod 35, which is rotatably connected to it, to move. The starting rod 35 pushes the sealing plates 37 through the fixed seat 36. Rotating with the rotating shaft 38 as the fulcrum, the six sealing plates 37 are distributed circumferentially along the fixed ring 31. During synchronous movement, the inner side of each sealing plate 37 gradually moves closer to the outer wall of the pipeline 1. Finally, the six sealing plates 37 together surround the outside of the pipeline 1, achieving a seal on the pipeline 1. When it is necessary to open the sealing port to inspect the pipeline 1 or adjust the equipment connection, the hydraulic rod 33 starts and extends, pushing the movable seat 34 and the starting rod 35 to move in the opposite direction away from the connecting plate 32. Under the pull of the starting rod 35, the sealing plates 37 rotate with the rotating shaft 38 as the fulcrum away from the pipeline 1. The six sealing plates 37 separate from each other, releasing the sealing state of the pipeline 1. The fixed connection between the fixed column 39 and the fixed ring 31 provides stable support for the rotating shaft 38, ensuring that the rotation process of the sealing plates 37 is smooth and reliable.

[0028] When pipeline 1 needs to be sealed, the external hydraulic system simultaneously supplies oil to each hydraulic rod 33, driving its piston rod to retract. The retraction of the piston rod pulls the movable seat 34 horizontally towards the connecting plate 32. The movable seat 34 then pushes the fixed seat 36 and the sealing plate 37 through the starting rod 35, causing the six sealing plates 37 to synchronously close towards the center, ultimately forming a complete annular sealing surface that tightly hugs the outer wall of pipeline 1. This sealing structure can effectively adapt to pipelines 1 of different diameters, achieving reliable sealing. When it is necessary to open the well platform for sampling or maintenance, the hydraulic rod 33 moves in the opposite direction, the piston rod extends, pushing the movable seat 34 away from the connecting plate 32. The starting rod 35 then pulls the sealing plates 37 to rotate outward synchronously to open, thus exposing pipeline 1. The operation is convenient and efficient.

[0029] Example 2

[0030] In this second embodiment, the other structures remain unchanged. The difference from the first embodiment is that a reinforcing rib 4 is provided at the connection between the support arm 21 and the frame 26. The reinforcing rib 4 can enhance the connection strength between the support arm 21 and the frame 26, improve the overall structural stability of the fixing mechanism 2, avoid loosening of the fixing due to deformation under stress during long-term use, and further adapt to the support requirements of different specifications of pipelines 1. A rotating handle 5 is fixedly connected to the top of the stud 23. The rotating handle 5 provides a convenient operating point for adjusting the stud 23, making it easy to quickly rotate the stud 23 to adjust the height of the support base 25, shorten the operation time for installation and ground flatness adaptation, and improve work efficiency. Six sealing plates 37 are evenly distributed around the fixing ring 31. Each sealing plate 37 has a sealing gasket 6 on its lower side. The six sealing plates 37 are evenly distributed around the fixing ring 31. With the sealing gasket 6, the sealing plates 37 can fit more evenly against the outer wall of the pipeline 1. The sealing gasket 6 can fill the small gap between the sealing plates 37 and the pipeline 1, and improve the sealing reliability of the sealing mechanism 3.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A soil gas monitoring well platform, comprising: The pipeline is characterized in that: a fixing mechanism is provided on the outside of the pipeline, the fixing mechanism stably fixes the well platform to the ground, a sealing mechanism is provided above the fixing mechanism, the sealing mechanism seals the pipeline, and the pipeline passes through the fixing mechanism and is adapted to and connected to the sealing mechanism; The fixing mechanism includes a support arm located outside the pipeline, a spiral sleeve fixedly connected inside the support arm, a stud threadedly connected to the spiral sleeve, a reserved hole opened above the support arm, the stud passing through the reserved hole, a support base fixedly connected to the bottom of the stud, and a frame fixedly connected to the support arm. The sealing mechanism includes a fixed ring fixedly connected to a frame, a connecting plate fixedly connected to the fixed ring, a hydraulic rod fixedly connected to the connecting plate, a movable seat fixedly connected to the end of the hydraulic rod, a starting rod rotatably connected to the movable seat, a fixed seat rotatably connected to the starting rod, a sealing plate fixedly connected to the fixed seat, a rotating shaft rotatably connected to the rear end of the sealing plate, a fixed column fixedly connected to the rotating shaft, and a fixed column fixedly connected to the fixed ring. There are six sealing plates in total.

2. The soil gas monitoring well platform according to claim 1, characterized in that: The connection between the support arm and the frame is reinforced with ribs.

3. The soil gas monitoring well platform according to claim 1, characterized in that: A rotating handle is fixedly connected to the top of the stud.

4. The soil gas monitoring well platform according to claim 1, characterized in that: The six sealing plates are evenly distributed along the circumference of the fixing ring, and a sealing gasket is provided on the underside of each sealing plate.

5. The soil gas monitoring well platform according to claim 4, characterized in that: The inner surface of the sealing gasket is designed as an arc-shaped curved surface that fits the lower wall of the sealing plate, and the edges are rounded.

6. The soil gas monitoring well platform according to claim 1, characterized in that: The support base is a square flat plate structure, and the diameter of the support base is larger than the diameter of the stud.

7. The soil gas monitoring well platform according to claim 1, characterized in that: The fixing ring and the connecting plate are detachably fixedly connected by a flange structure, and six sets of connecting plates are evenly distributed along the circumference of the fixing ring.

8. The soil gas monitoring well platform according to claim 1, characterized in that: The fixing ring has a ring structure.

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