Geothermal well protective cover

Abstract

The utility model relates to the technical field of geothermal well protection covers, and in particular to a geothermal well protection cover. The utility model provides a geothermal well protection cover with a high safety factor, including a well ring, a well cover, a protective plate, a connecting plate, a threaded rod, a fixed plate and a clamping plate. The well ring is provided with a well cover in a clamping manner, and the well cover is provided with a protective plate. An empty slot is opened at the top center of the well cover, and a connecting plate is rotatably provided on the empty slot of the well cover. A threaded rod is provided at the bottom of the connecting plate, and a fixed plate is provided on the inner wall of the empty slot of the well cover. The fixing plate and the threaded rod are threadedly matched, and clamping plates are clamped around the inner wall of the well ring. The other ends of the four clamping plates penetrate the well cover and are slidably matched with it. The utility model realizes the clamping fixation between the clamping plate and the well ring by cooperating with the wedge block and the threaded rod, so that the position between the well cover and the well ring is fixed in a locked manner, and the fixation between the two is more stable, thereby achieving the effect of improving the safety factor of the well cover.

Description

Technical Field

[0001] The utility model relates to the technical field of geothermal well protection covers, and in particular to a geothermal well protection cover. Background Art

[0002] Geothermal well protection cover is a safety device specially designed to protect geothermal wellheads, also known as wellhead protection facilities. Its main purpose is to ensure the safety of geothermal well sites and the stable operation of wellhead equipment, prevent accidental falls, isolate heat sources to avoid heat loss, and protect wellhead equipment from external environmental influences.

[0003] Due to the particularity of the use environment of geothermal well protection covers, their safety and sealing are particularly important. Passing people and vehicles will crush the covers, which will cause wear and tear under long-term stress, resulting in loosening, which forces them to reduce their safety. At the same time, most traditional well covers are made of metal or concrete, and are directly covered with the well frame. The installation structure is simple and there is a risk of theft, and the safety factor still needs to be improved.

[0004] Therefore, in response to the above problems, a geothermal well protective cover with a high safety factor is proposed. Utility Model Content

[0005] In order to overcome the above-mentioned shortcomings in the prior art, the utility model provides a geothermal well protective cover with a high safety factor.

[0006] In order to solve the above technical problems, the utility model provides a geothermal well protection cover, comprising a well ring, a well cover, a protection plate, a connecting plate, a threaded rod, a fixing plate, a clamping plate, a wedge block and a spring. The well ring is an installation carrier for various components. The well cover is clamped on the well ring, the protection plate is arranged on the well cover, an empty slot is opened at the top center of the well cover, the connecting plate is rotatably arranged on the empty slot of the well cover, the threaded rod is arranged at the bottom of the connecting plate, the fixing plate is arranged on the inner wall of the empty slot of the well cover, the fixing plate and the threaded rod are threadedly matched, four clamping plates are provided, and the four clamping plates are symmetrically clamped on the inner wall of the well ring, the other ends of the four clamping plates all penetrate the well cover and slideably match therewith, and four wedge blocks are provided, the four wedge blocks are respectively arranged on the inward side of the four clamping plates, the wedge blocks are contact-matched with the threaded rod, and springs are provided between the four wedge blocks and the inner wall of the empty slot of the well cover.

[0007] Preferably, a cover plate is also included, holes are opened on both sides of the top of the manhole cover, and two cover plates are provided, and the two cover plates are arranged on the two holes of the manhole cover.

[0008] Preferably, it also includes a display and a sensor. There are two displays, which are arranged on both sides of the top of the manhole cover. The display and the cover are staggered. The sensor is arranged at the bottom of the display. The sensor passes through the manhole cover, and the sensor and the display are electrically connected.

[0009] Preferably, it also includes a collar and a thermal insulation layer, the collar is arranged at the bottom of the well ring, and the thermal insulation layer is arranged on the inner wall of the collar.

[0010] Preferably, a positioning ring is further included, and the positioning ring is arranged around the inner wall of the thermal insulation layer.

[0011] Preferably, a scraper ring is also included, and the scraper ring is arranged at the bottom of the sleeve ring.

[0012] Preferably, a tray is further included, and the tray is arranged at the bottom of the scraper ring.

[0013] Beneficial effects: 1. The utility model realizes the clamping and fixing between the clamping plate and the well ring by cooperating with the wedge block and the threaded rod, and the position between the well cover and the well ring is locked and fixed, and the fixation between the two is more stable, thereby achieving the effect of improving the safety factor of the well cover;

[0014] 2. The utility model detects the situation under the manhole cover through the display and the sensor, so that the situation in the well can be visualized, thereby avoiding the occurrence of emergencies and further improving the overall safety factor;

[0015] 3. The utility model isolates the high temperature heat wave in the well through the thermal insulation layer, so that the ambient temperature above it can be controlled, thereby achieving the effect of temperature control and improving safety;

[0016] 4. The utility model scrapes and cleans the mud skin on the well wall through the scraper ring, and the tray collects the mud skin, so that the internal environment is controlled and the convenience of daily inspection and emergency maintenance is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0018] Figure 2 It is a three-dimensional structural schematic diagram of the components such as the well ring, well cover and cover plate of the utility model.

[0019] Figure 3 It is a three-dimensional structural schematic diagram of the manhole cover, threaded rods, fixing plates and other parts of the utility model.

[0020] Figure 4 It is a schematic cross-sectional view of the components such as the clamping plate, wedge block and spring of the utility model.

[0021] Figure 5It is a schematic cross-sectional view of the display, sensor, collar and other components of the utility model.

[0022] Figure 6 It is a three-dimensional structural schematic diagram of the parts such as the positioning ring, the scraper ring and the tray of the utility model.

[0023] The marks in the accompanying drawings are: 1-well ring, 2-well cover, 201-protective plate, 3-cover plate, 4-connecting plate, 5-threaded rod, 6-fixing plate, 7-clamping plate, 8-wedge block, 9-spring, 10-display, 11-sensor, 12-ring, 13-thermal insulation layer, 14-positioning ring, 15-scraper ring, 16-tray. DETAILED DESCRIPTION

[0024] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0025] Embodiment: A geothermal well protection cover, such as Figure 1-Figure 4 As shown, it includes a well ring 1, a well cover 2, a protective plate 201, a connecting plate 4, a threaded rod 5, a fixing plate 6, a clamping plate 7, a wedge block 8 and a spring 9. The well ring 1 is provided with a well cover 2 in a clamping manner, the well cover 2 is embedded in the well ring 1, and a protective plate 201 is provided on the well cover 2. The center of the well cover 2 is circularly depressed, and the protective plate 201 can protect this position and the components thereon. A circular empty groove is provided at the center position of the top of the well cover 2, a connecting plate 4 is rotatably provided on the empty groove of the well cover 2, and the top of the connecting plate 4 is a cross-shaped threaded hole, a threaded rod 5 is fixedly provided at the center position of the bottom of the connecting plate 4, a fixing plate 6 is provided on the inner wall of the empty groove of the well cover 2, and the center position of the fixing plate 6 is a threaded hollow The shape of the well ring 1 is a shape, and the fixing plate 6 and the threaded rod 5 are threadedly matched, which can realize the movement of the threaded rod 5. The inner wall of the well ring 1 is provided with a clamping plate 7 around the center of the circle. The clamping plates 7 are evenly arranged. The inward ends of the four clamping plates 7 penetrate the well cover 2 and slide with it, and the inward ends of the four clamping plates 7 are provided with a wedge block 8. The inclined surface of the wedge block 8 shows an inclination trend from top to bottom. The wedge block 8 is in contact with the threaded rod 5. Springs 9 are provided between the four wedge blocks 8 and the inner wall of the empty groove of the well cover 2, thereby realizing the trend of pushing the clamping plate 7 to operate, so that the clamping plate 7 can be embedded in the well ring 1 to achieve a locking effect on it, thereby fixing the well cover 2 and its position to present a stable self-locking state.

[0026] like Figure 1 , Figure 2 , Figure 5 and Figure 6As shown, it also includes a cover plate 3. Holes are opened on both the front and rear sides of the top of the manhole cover 2. Cover plates 3 are provided on the two holes of the manhole cover 2. The cover plates 3 are used to cover the positions of the holes, and the holes on them are used to position small-diameter pipes, which can facilitate cleaning work in the well; a display 10. Displays 10 are set on both the left and right sides of the top of the manhole cover 2. The displays 10 and the cover plates 3 are staggered. The displays 10 are mainly used for data transmission, making the data more intuitive; a sensor 11. A sensor 11 is set at the bottom of the display 10. The sensor 11 passes through the manhole cover 2, and the sensor 11 is electrically connected to the display 10. The sensor 11 can detect the humidity and temperature in the well, and transmit the detection data to the display 10, so that the situation in the well can be controlled in real time, thereby avoiding the occurrence of emergencies. , so that its safety is further improved; a collar 12, a collar 12 is fixedly provided at the bottom of the well ring 1; a thermal insulation layer 13, a thermal insulation layer 13 is provided on the inner wall of the collar 12, and the thermal insulation layer 13 is in a multi-layer ring shape and can block the high temperature in the well, and the upper temperature is controlled to avoid the occurrence of high temperature accidents; a positioning ring 14, a positioning ring 14 is provided around the inner wall of the thermal insulation layer 13, and the aperture of the positioning ring 14 is larger than the aperture of the cover plate 3, which is more suitable for the placement of large-aperture pipes; a scraping ring 15, a scraping ring 15 is provided at the bottom of the collar 12, and the scraping ring 15 can scrape the mud on the well wall to achieve a cleaning effect, and at the same time, the interference caused by the mud can be avoided when other work is running; a tray 16, a tray 16 is provided at the bottom of the scraping ring 15, and the tray 16 can collect the mud that has been scraped off.

[0027] When installing the manhole cover 2, the staff first fixes it to the manhole ring 1 according to the wellhead, and then places the manhole cover 2 on the manhole ring 1 to make it fixed on the manhole ring 1. The clamping plate 7 on it is embedded in the clamping groove of the inner wall of the manhole ring 1 and is clamped and connected with the inner wall around it. Then, the connecting plate 4 is twisted by a tool to make the threaded rod 5 connected thereto rotate accordingly, and the threaded rod 5 is threadedly rotated with the fixing plate 6, thereby pushing the threaded rod 5 to move downward. As the threaded rod 5 moves, it will come into contact with the wedge block 8 and push-contact with its inclined surface, so that the wedge blocks 8 around it move outward around it and move with it. The connected spring 9 is deformed and begins to compress, and the card plate 7 connected to the wedge block 8 also operates synchronously with it, and slides with the manhole cover 2. When the threaded rod 5 moves to the end of the inclined surface of the wedge block 8, the card plate 7 is tightly embedded in the card groove of the well ring 1 as it slides, fixing the position between the manhole cover 2 and the well ring 1, making it present a self-locking state, and then the protective plate 201 is placed on the manhole cover 2; when the manhole cover 2 needs to be taken out, the staff can combine the above operations to perform the opposite operation, open the protective plate 201, and then twist the connecting plate 4, and the connecting plate 4 and the above rotating The operation direction is opposite. With the rotation of the connecting plate 4, the threaded rod 5 is pushed upward and then disengaged from the wedge block 8, so that the wedge block 8 is free from its restriction. The spring 9 is also reset, so that the clamping plate 7 is forced to move inwards, and then the clamping plate 7 is separated from the well ring 1, so that the manhole cover 2 is free from the restriction and can be taken out. When the manhole cover 2 is in normal use, the sensor 11 will detect the situation in the well in real time, and then transmit the data to the upper side through the display 10, so that the staff can directly and intuitively understand the internal situation through the data on the display 10. It is understood that if inspection and cleaning are required during subsequent use, the staff can insert the small-diameter pipe into the well through the cover plate 3, or can open the manhole cover 2 and perform positioning and cleaning operations on the large-diameter pipe through the positioning ring 14 below. If it needs to be disassembled and replaced, the staff will disassemble and replace the manhole cover 2 together with the well ring 1. At this time, when the well ring 1 is separated from the well wall, as it moves upward, the scraping ring 15 scrapes the mud on the well wall, and the scraped mud falls onto the tray 16. At the same time, the insulation layer 13 controls the temperature of the upper layer, making the replacement operation more convenient and simple.

[0028] The above-mentioned embodiments only express the preferred implementation of the utility model, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that for ordinary technicians in this field, several modifications, improvements and substitutions can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A geothermal well protective cover, comprising a well ring (1) and a well cover (2), wherein the well ring (1) is provided with the well cover (2) in a snap-fit ​​manner; It is characterized in that The manhole cover (2) further comprises a protective plate (201), a connecting plate (4), a threaded rod (5), a fixing plate (6), a clamping plate (7), a wedge block (8) and a spring (9); the manhole cover (2) is provided with a protective plate (201); a hollow groove is provided at the top center of the manhole cover (2); a connecting plate (4) is rotatably provided on the hollow groove of the manhole cover (2); a threaded rod (5) is provided at the bottom of the connecting plate (4); a fixing plate (6) is provided on the inner wall of the hollow groove of the manhole cover (2); The fixing plate (6) and the threaded rod (5) are threadedly matched, and the inner wall of the well ring (1) is symmetrically provided with four clamping plates (7), the other ends of the four clamping plates (7) all pass through the well cover (2) and are slidably matched therewith, and the inward side of the four clamping plates (7) is provided with a wedge block (8), the wedge block (8) is contact-matched with the threaded rod (5), and a spring (9) is provided between the four wedge blocks (8) and the inner wall of the empty groove of the well cover (2).

2. A geothermal well protection cover according to claim 1, characterized in that: It also includes a cover plate (3), and holes are provided on both sides of the top of the manhole cover (2), and cover plates (3) are provided on the two holes of the manhole cover (2).

3. A geothermal well protection cover according to claim 2, characterized in that: It also includes a display (10) and a sensor (11), wherein the top two sides of the manhole cover (2) are provided with displays (10), the displays (10) and the cover plate (3) are arranged in a staggered manner, and the bottom of the display (10) is provided with a sensor (11), the sensor (11) passes through the manhole cover (2), and the sensor (11) is electrically connected to the display (10).

4. A geothermal well protection cover according to claim 3, characterized in that: It also comprises a collar (12) and a thermal insulation layer (13); the collar (12) is arranged at the bottom of the well ring (1), and the thermal insulation layer (13) is arranged on the inner wall of the collar (12).

5. A geothermal well protection cover according to claim 4, characterized in that: It also includes a positioning ring (14), which is arranged around the inner wall of the thermal insulation layer (13).

6. A geothermal well protection cover according to claim 5, characterized in that: It also includes a scraper ring (15), and the bottom of the sleeve ring (12) is provided with a scraper ring (15).

7. A geothermal well protection cover according to claim 6, characterized in that: It also includes a tray (16), and the bottom of the scraper ring (15) is provided with the tray (16).

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