CN115075896B - Underground geothermal heat taking device for middle and deep layers - Google Patents
Underground geothermal heat taking device for middle and deep layers Download PDFInfo
- Publication number
- CN115075896B CN115075896B CN202210814707.0A CN202210814707A CN115075896B CN 115075896 B CN115075896 B CN 115075896B CN 202210814707 A CN202210814707 A CN 202210814707A CN 115075896 B CN115075896 B CN 115075896B
- Authority
- CN
- China
- Prior art keywords
- turbine
- connecting pipe
- exhaust channel
- sealing block
- gear assembly
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 64
- 238000007789 sealing Methods 0.000 claims abstract description 37
- 230000005540 biological transmission Effects 0.000 claims abstract description 33
- 238000000605 extraction Methods 0.000 claims description 5
- 239000007789 gas Substances 0.000 description 25
- 238000000034 method Methods 0.000 description 9
- 230000033001 locomotion Effects 0.000 description 5
- 238000009835 boiling Methods 0.000 description 4
- 230000000149 penetrating effect Effects 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- UBAZGMLMVVQSCD-UHFFFAOYSA-N carbon dioxide;molecular oxygen Chemical compound O=O.O=C=O UBAZGMLMVVQSCD-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D17/00—Regulating or controlling by varying flow
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24T—GEOTHERMAL COLLECTORS; GEOTHERMAL SYSTEMS
- F24T10/00—Geothermal collectors
- F24T10/10—Geothermal collectors with circulation of working fluids through underground channels, the working fluids not coming into direct contact with the ground
- F24T10/13—Geothermal collectors with circulation of working fluids through underground channels, the working fluids not coming into direct contact with the ground using tube assemblies suitable for insertion into boreholes in the ground, e.g. geothermal probes
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Geology (AREA)
- General Engineering & Computer Science (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mechanical Engineering (AREA)
- Fluid Mechanics (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Geochemistry & Mineralogy (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
The invention discloses a medium-deep geothermal underground heat-taking device, which relates to the technical field of geothermal exploitation, and comprises a connecting pipe and an exhaust channel, and further comprises: and (3) sealing blocks: it is set up in the exhaust passage, have the first position to close the exhaust passage and open the second position of the exhaust passage; and (3) a turbine: the device is rotationally connected in the connecting pipe and is used for detecting the water flow; a transmission mechanism: the turbine is arranged on the turbine and is connected with the sealing block; when the rotation speed of the turbine is smaller than a preset value, the transmission assembly drives the sealing block to move to a second position for opening the exhaust channel so as to discharge the gas in the connecting pipe. The invention provides a middle-deep geothermal underground heat-taking device, which is used for detecting the water flow through the rotation speed of a turbine, so that the turbine drives a transmission assembly to move, and then the transmission assembly drives a sealing block to move to open an exhaust channel to discharge gas in a connecting pipe, and further the water flow of the connecting pipe can be gradually increased, and the underground water collection time is shortened.
Description
Technical Field
The invention relates to the technical field of geothermal exploitation, in particular to a medium-deep geothermal underground heat-taking device.
Background
The ground temperature is the temperature condition of the junction of the atmosphere and the earth surface. The temperature of the surface soil on the ground is referred to as the ground temperature, and the temperature in the soil below the ground is referred to as the in-ground temperature. The ground temperature is measured by a special ground thermometer. With the development of energy, the geothermal heat is utilized by extracting the ground surface through a pipeline after heat exchange of water.
In the patent of the grant bulletin number CN 110230896B, grant bulletin day 2020.10.27, entitled "downhole heat extraction device and downhole heat extraction method", the invention comprises: the water pump comprises a water pump, a first sleeve and an extension pipe, wherein the two ends of the first sleeve are connected with end covers, a water inlet of the water pump is arranged in the first sleeve, one end of the extension pipe is communicated with the first sleeve, and the other end of the extension pipe is used for extending underground; the underground heat-taking device comprises a second sleeve and an exhaust pipe, the second sleeve is arranged in the first sleeve, and the water pump is arranged in the second sleeve; the lower part of the second sleeve is closed, and the upper part of the second sleeve is provided with a communication hole communicated with the first sleeve; the exhaust pipe communicates with an upper portion of the second sleeve.
In the prior art including the above patent, in the process of exploiting geothermal heat, it is generally necessary to pump underground hot water to the surface, and pump the water to a proper position below the surface of still water by a water pump, and use the water to the surface by a pipe, but since a small amount of oxygen and carbon dioxide gas dissolved in the water are separated from the water as the temperature gradually increases in the process of heating the water, the heated gas gradually fills the upper part of a connecting pipe, and the water flow in the connecting pipe is small under the condition that the lift of the water pump is unchanged, in the prior art of the above patent, although an exhaust pipe is adopted to discharge the gas filled above the connecting pipe through an exhaust channel, the boiling point of the water is 100 ℃ at this time, if the air pressure in the connecting pipe is increased, the time for heat exchange after the boiling point of the water is higher is shorter, but if the air pressure of the connecting pipe is too large, the flow rate of the water is smaller under the condition that the lift of the water pump is unchanged, and the time for extracting underground water is further prolonged.
Disclosure of Invention
The invention aims to provide a medium-deep geothermal underground heat-taking device, which aims to solve the defects in the prior art.
In order to achieve the above object, the present invention provides the following technical solutions: the utility model provides a well deep geothermal heat get device in pit, includes connecting pipe and exhaust passage, still includes: and (3) sealing blocks: it is set up in the exhaust passage, have the first position to close the exhaust passage and open the second position of the exhaust passage; and (3) a turbine: the device is rotationally connected in the connecting pipe and is used for detecting the water flow; a transmission mechanism: the turbine is arranged on the turbine and is connected with the sealing block; when the rotation speed of the turbine is smaller than a preset value, the transmission assembly drives the sealing block to move to a second position for opening the exhaust channel so as to discharge the gas in the connecting pipe.
Preferably, the transmission mechanism comprises a driving gear assembly coaxially and fixedly connected with the turbine, and a driven gear assembly is coaxially and rotatably connected with the driving gear assembly;
Preferably, the drive gear assembly has a first position in engagement with the driven gear assembly and a second position in non-engagement with the driven gear assembly.
Preferably, the driving gear assembly comprises a central disc coaxially and fixedly connected with the turbine, a plurality of meshing pieces and a plurality of driving pieces are arranged on the central disc in the radial direction, and the meshing pieces and the driving pieces are arranged in a one-to-one correspondence mode.
Preferably, each engagement member is connected to the central disc by a spring.
Preferably, each of the engagement members and each of the driving members are slidably connected.
Preferably, the driven gear assembly comprises a central gear coaxially and rotatably connected with the central disc, and a connecting shaft is coaxially sleeved on the central gear.
Preferably, a spiral spring is arranged between the central gear and the connecting shaft, so that the phenomenon of tooth striking when the central gear is meshed with the meshing piece is avoided.
Preferably, a transmission rod is arranged between the central gear and the sealing block.
Preferably, each of the engagement members is provided with an engagement portion which engages with the sun gear, each of the engagement portions enclosing a ring gear when each of the engagement members is in the first position in which it engages with the sun gear.
Preferably, a sleeve is coaxially arranged on the central gear, a connecting shaft is sleeved in the sleeve, and the spiral spring is sleeved on the connecting shaft and sleeved in the sleeve.
In the technical scheme, the underground geothermal heat collecting device for the middle and deep layer is used for detecting the water flow through the rotating speed of the turbine, when the air pressure in the connecting pipe is increased, the rotating speed of the turbine is reduced due to the fact that air is filled in the upper space of the connecting pipe, the rotating speed of the turbine is reduced, the rotating speed is reduced, the turbine drives the transmission assembly to move, the transmission assembly drives the sealing block to move to the second position for opening the exhaust channel, the exhaust channel is connected with the connecting pipe in a penetrating mode, air in the connecting pipe is discharged, the water flow of the connecting pipe can be increased, and therefore the collecting time of underground water is shortened.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments described in the present application, and other drawings may be obtained according to these drawings for a person having ordinary skill in the art.
FIG. 1 is a schematic diagram of the overall structure of a mid-deep geothermal downhole heat extraction device according to the present invention;
FIG. 1a is a front cross-sectional view of a mid-deep geothermal downhole heat extractor according to the present invention;
FIG. 1b is an enlarged schematic view of a part of the structure A in FIG. 1a according to the present invention;
FIG. 2 is a schematic diagram of a drive gear assembly according to the present invention;
FIG. 2a is a schematic view of a center plate of the present invention;
FIG. 2b is a schematic view of an engagement member of the present invention;
FIG. 3 is a schematic view of a driven gear assembly according to the present invention;
FIG. 4 is a schematic view of the meshing portion of the present invention and the driven gear assembly when not engaged;
fig. 4a is a schematic view showing a state in which the engaging portion of the present invention is engaged with the driven gear assembly.
Reference numerals illustrate:
1. a connecting pipe; 1.1, an installation room; 1.2, an exhaust channel; 1.20, a sealing block; 1.21, exhaust holes; 1.3, a turbine; 1.4, a driving gear assembly; 1.40, center plate; 1.400, arc-shaped grooves; 1.401, connecting grooves; 1.402, springs; 1.41, driving member; 1.410, connecting blocks; 1.411, V-bar; 1.42, engagement member; 1.420, connecting blocks; 1.421, mounting slots; 1.422, engagement portion; 1.5, a driven gear assembly; 1.50, sun gear; 1.51, sleeve; 1.52, spiral spring; 1.53, connecting shaft; 1.6, a transmission rod.
Detailed Description
In order to make the technical scheme of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings.
Referring to fig. 1-4a, the present invention provides a mid-deep geothermal downhole heat extraction device, which includes a connection pipe 1 and an exhaust channel 1.2, and further includes: sealing block 1.20: which is arranged in the exhaust channel 1.2 and has a first position closing the exhaust channel 1.2 and a second position opening the exhaust channel 1.2;
Turbine 1.3: the device is rotatably connected in the connecting pipe 1 and is used for detecting the water flow;
a transmission mechanism: which is arranged on the turbine 1.3 and is connected with the sealing block 1.20;
When the rotation speed of the turbine 1.3 is smaller than the preset value, the transmission assembly drives the sealing block 1.20 to move to a second position for opening the exhaust passage 1.2 so as to realize the exhaust of the gas in the connecting pipe 1.
Specifically, the connecting pipe 1 is a hollow cylindrical structure with two through ends, the bottom end of the connecting pipe 1 is connected with the extension pipe, the tail end of the extension pipe is connected with the water pump (the connection mode of the extension pipe and the connecting pipe 1 and the connection mode of the extension pipe and the water pump are all of the prior art, and are not described in detail in the application, the extension pipe and the water pump are not shown in the figures), the upper end of the connecting pipe 1 is positioned on the ground surface, the upper end of the connecting pipe 1 is connected with an exhaust channel 1.2 in a penetrating way, and the upper space in the connecting pipe 1 is filled with a small amount of oxygen, carbon dioxide and other gases dissolved in water after water is heated, so that the exhaust channel 1.2 is arranged on the upper part of the connecting pipe 1, and a plurality of exhaust holes 1.21 for exhausting are formed in the exhaust channel 1.2 (as shown in fig. 1 and 2);
sealing block 1.20: which is arranged in the exhaust channel 1.2 for opening the exhaust channel 1.2 and closing the exhaust channel 1.2; the sealing block 1.20 is mounted in the exhaust channel 1.2 by means of a sliding or rotating connection on the exhaust channel 1.2 or a combination of sliding and rotating connection or in other ways;
Turbine 1.3: the turbine 1.3 is rotatably connected in the connecting pipe 1, the turbine 1.3 is positioned at the position near the lower end of the connecting pipe 1, the turbine 1.3 is driven by water flow, when the flow rate of water in the connecting pipe 1 is high, the upper part of the connecting pipe 1 is filled with a small amount of filling gas or no filling gas, the flow rate of water flow passing through the connecting pipe 1 is high, when the upper part of the connecting pipe 1 is filled with more filling gas, the air pressure of the connecting pipe 1 is high, and under the condition that the lift of the water pump is unchanged, the water flow is enabled to flow into the connecting pipe 1 more slowly due to the fact that the air pressure in the connecting pipe 1 is high, the rotating speed of the turbine 1.3 is slower, and then the water flow is detected through the rotating speed of the turbine 1.3;
A transmission mechanism: the device is arranged on the turbine 1.3 and is coaxially connected with the turbine 1.3, and further the device is used for driving a transmission mechanism to move through the rotation speed of the turbine 1.3, and the other end of the transmission mechanism is connected with the sealing block 1.20; the transmission mechanism is a mechanism for converting circular motion into linear reciprocating motion, the turbine 1.3 drives the transmission mechanism to move, when the rotating speed of the turbine 1.3 is slower, the turbine 1.3 drives the transmission mechanism to move, the Jiner transmission mechanism drives the sealing block 1.20 to slide or rotate in the exhaust channel 1.2, and then the exhaust channel 1.2 is opened, so that the exhaust channel 1.2 is in through connection with the connecting pipe 1, and then the gas of the connecting pipe 1 is discharged.
When the rotation speed of the turbine 1.3 is smaller than the preset value, in the embodiment, when the preset value is that the air pressure of the connecting pipe 1 reaches more than one standard air pressure, and under the condition that dust of the water pump is not changed at this time, the rotation speed of the turbine 1.3 when the water flow impacts the turbine 1.3 (without considering the friction force between the water flow and the inner wall of the connecting pipe 1 and between the water flow and the turbine 1.3), and when the rotation speed of the turbine 1.3 is the preset value, the sealing block 1.20 is driven to move to the second position for opening the exhaust channel 1.2 by the driving assembly, so that the gas in the connecting pipe 1 is exhausted.
In the use, when water makes the solubility of a small amount of oxygen, carbon dioxide and some other gases in water reduce in the in-process of heating, and then make the back gaseous packing of heating with the upper portion in the connecting pipe 1, when the water pump is pumping this moment, because the atmospheric pressure of connecting pipe 1 is higher than a standard atmospheric pressure, make the velocity of flow of water less under the circumstances that the lift of water pump is unchangeable, and then make rivers less to turbine 1.3's impact force, and then make turbine 1.3 rotational speed slower, and then make turbine 1.3 drive transmission subassembly motion make transmission subassembly drive sealing block 1.20 motion, and then make sealing block 1.20 be located the second position of opening exhaust passage 1.2, link up exhaust passage 1.2 and connecting pipe 1, and then discharge the gas of connecting pipe 1, and then make turbine 1.3 rotational speed in the connecting pipe 1 become fast, save water intaking time.
According to the underground heat-collecting device for the middle-deep geothermal heat, the rotating speed of the turbine 1.3 is used for detecting the water flow, when the air pressure in the connecting pipe 1 is increased, the rotating speed of the turbine 1.3 is reduced due to the fact that air is filled in the upper space of the connecting pipe 1, so that no matter what the rotating speed is reduced, the turbine 1.3 drives the transmission assembly to move, the transmission assembly drives the sealing block 1.20 to move to the second position for opening the exhaust channel 1.2, the exhaust channel 1.2 is connected with the connecting pipe 1 in a penetrating mode, air in the connecting pipe 1 is discharged, the water flow of the connecting pipe 1 can be increased, and therefore the underground water collecting time is shortened.
Referring to fig. 1a-4a, in another embodiment of the present invention, the transmission mechanism includes a driving gear assembly 1.4 coaxially and fixedly connected to a turbine 1.3, and a driven gear assembly 1.5 is coaxially and rotatably connected to the driving gear assembly 1.4;
The driving gear assembly 1.4 has a first position in which it meshes with the driven gear assembly 1.5 and a second position in which it does not mesh with the driven gear assembly 1.5.
The driving gear assembly 1.4 comprises a central disc 1.40 which is coaxially and fixedly connected with the turbine 1.3, a plurality of meshing pieces 1.42 and a plurality of driving pieces 1.41 are arranged on the central disc 1.40 in the radial direction, and the meshing pieces 1.42 and the driving pieces 1.41 are arranged in a one-to-one correspondence mode.
The engagement elements 1.42 are connected to the central disk 1.40 by a spring 1.402.
The engagement members 1.42 and the driving members 1.41 are slidably connected to each other.
A transmission rod 1.6 is arranged between the sun gear 1.50 and the sealing block 1.20.
Referring to fig. 2, the driven gear assembly 1.5 comprises a sun gear 1.50 rotatably coaxially connected to a sun disk 1.40, and a connecting shaft 1.53 is coaxially sleeved on the sun gear 1.50.
Each engagement member 1.42 is provided with an engagement portion 1.422 for engagement with the sun gear 1.50, each engagement portion 1.422 defining a ring gear when each engagement member 1.42 is in the first position for engagement with the sun gear 1.50.
Specifically, the circumference of the connecting pipe 1 is provided with a mounting chamber 1.1, the mounting chamber 1.1 is positioned below the exhaust channel 1.2, and a hollow cavity is used for mounting the driving wheel assembly and the driven wheel assembly during mounting; the driving gear assembly 1.4 comprises a central disc 1.40 which is coaxially and fixedly connected with the turbine 1.3, a plurality of arc-shaped grooves 1.400 which are matched with the driving parts 1.41 and a plurality of connecting grooves 1.401 which are matched with the driving parts 1.41 are formed in the radial direction of the central disc 1.40, the connecting grooves 1.401 and the arc-shaped grooves 1.400 are alternately arranged one by one, and the inner wall of each connecting groove 1.401 is fixedly connected with a spring 1.402;
The driving piece 1.41 comprises a V-shaped rod 1.411 and a cylindrical block 1.410 which is fixedly connected with the bottom end of the V-shaped rod 1.411 and is matched with the arc-shaped groove 1.400;
each engagement piece 1.42 comprises a connecting block 1.420 matched with the connecting groove 1.401, each connecting block 1.420 is provided with an engaged part 1.422, two opposite side walls of each connecting block 1.420 are provided with a mounting groove 1.421 matched with a V-shaped rod 1.411 in a penetrating way, two ends of each V-shaped rod 1.411 are respectively positioned in the corresponding mounting groove 1.421, so that the V-shaped rod 1.411 and the connecting block 1.420 are in relative sliding connection, each connecting groove 1.401 is fixedly connected with a spring 1.402, and the other end of each spring 1.402 is fixedly connected with each connecting block 1.420;
The sealing block 1.20 moves in the axial direction of the connecting pipe 1, (namely, the sealing block 1.20 realizes the opening of the exhaust channel 1.2 or the closing of the exhaust channel 1.2 through up-and-down reciprocating movement, a through groove matched with the sealing block 1.20 is formed in the radial direction of the exhaust channel 1.2, so that the sealing block 1.20 moves up-and-down in the radial direction of the exhaust channel 1.2, and the opening or the closing of the exhaust channel 1.2 is realized;
The eccentric position of the central gear 1.50 is hinged with the beneficial transmission rod 1.6, and the other end of the transmission rod 1.6 is glued on the sealing block 1.20.
When the gas-filled exhaust pipe is used, after the upper part in the connecting pipe 1 is filled with gas, the gas pressure in the connecting pipe 1 is increased, so that the rotating speed of the turbine 1.3 is smaller, the driving gear assembly 1.4 and the driven gear which are coaxially and fixedly connected with the turbine 1.3 are in assembly engagement, the driving gear assembly 1.4 and the driven gear assembly 1.5 are in engagement to drive the driven gear assembly 1.5 to rotate, the driven gear drives the sealing block 1.20 to move to a second position for opening the vent pipe, and then the exhaust channel 1.2 is opened, so that the exhaust channel 1.2 is in through connection with the connecting pipe 1, and then the gas in the connecting pipe 1 is exhausted;
when the turbine 1.3 rotates at a low speed, the turbine 1.3 drives the central disc 1.40 to rotate at a low speed, at the moment, the central disc 1.40 generates smaller centrifugal force due to low-custom rotation, so that the spring 1.402 is in an original length state, the spring 1.402 is abutted against each engagement piece 1.42, each engagement part 1.422 is surrounded to form a gear ring to be engaged with the central gear 1.50, the sealing block 1.20 is driven to move in the rotation process of the central gear 1.50, the exhaust channel 1.2 is in an opened state, filled gas in the connecting pipe 1 is discharged, at the moment, the air pressure of the connecting pipe 1 is reduced, the water flow is increased, and the rotating speed of the turbine 1.3 is increased;
after the gas in the connecting pipe 1 is discharged, the flow speed of water is increased, so that the water flow drives the turbine 1.3 to rotate at a high speed, the centrifugal force generated by the turbine 1.3 under the condition of high-speed rotation is larger, and then each driving piece 1.41 moves in the radial direction of the central disk 1.40, so that each driving piece 1.41 drives the meshing piece 1.42 to move towards a state of being not meshed with the central gear 1.50, the meshing piece 1.42 compresses the spring 1.402 in the moving process, the turbine 1.3 drives the central disk 1.40 to rotate, the central gear 1.50 is coaxially and rotatably connected with the central disk 1.40, the central gear 1.50 is in a relatively static state, and then the sealing block 1.20 is positioned in the closed exhaust channel 1.2, so that the air pressure in the connecting pipe 1 is gradually increased along with the time, the boiling point of the water is further improved, and the heat exchange time is shortened.
Referring to fig. 3, in one embodiment, a spiral spring 1.52 is disposed between a sun gear 1.50 and a connecting shaft 1.53, so as to avoid tooth striking when the sun gear 1.50 is engaged with an engaging member 1.42.
A sleeve 1.51 is coaxially arranged on the central gear 1.50, a connecting shaft 1.53 is sleeved in the sleeve 1.51, a scroll spring 1.52 is sleeved on the connecting shaft 1.53 in an outer sleeve mode, and the scroll spring is sleeved in the sleeve 1.51 in an inner sleeve mode.
Specifically, a sleeve 1.51 is coaxially arranged on the other end face of the central gear 1.50 opposite to the end face hinged with the transmission rod 1.6, the sleeve 1.51 is of a hollow end part structure, a spiral spring 1.52 is sleeved on the sleeve 1.51, a connecting shaft 1.53 is sleeved on the center of the spiral spring 1.52, one end of the spiral spring 1.52 is fixedly connected in the sleeve 1.51, the other end of the spiral spring 1.52 is fixedly connected to the connecting shaft 1.53, and the central gear 1.50 is rotationally connected to the central disc 1.40 through the connecting shaft 1.53.
When the gas-filled exhaust pipe is used, after the upper part in the connecting pipe 1 is filled with gas, the gas pressure in the connecting pipe 1 is increased, so that the rotating speed of the turbine 1.3 is smaller, the driving gear assembly 1.4 and the driven gear which are coaxially and fixedly connected with the turbine 1.3 are in assembly engagement, the driving gear assembly 1.4 and the driven gear assembly 1.5 are in engagement to drive the driven gear assembly 1.5 to rotate, the driven gear drives the sealing block 1.20 to move to a second position for opening the vent pipe, and then the exhaust channel 1.2 is opened, so that the exhaust channel 1.2 is in through connection with the connecting pipe 1, and then the gas in the connecting pipe 1 is exhausted;
when the turbine 1.3 rotates at a low speed, the turbine 1.3 drives the central disc 1.40 to rotate at a low speed, at the moment, the central disc 1.40 generates smaller centrifugal force due to low-custom rotation, so that the spring 1.402 is in an original length state, the spring 1.402 is abutted against each engagement piece 1.42, each engagement part 1.422 is surrounded to form a gear ring to be engaged with the central gear 1.50, the sealing block 1.20 is driven to move in the rotation process of the central gear 1.50, the exhaust channel 1.2 is in an opened state, filled gas in the connecting pipe 1 is discharged, at the moment, the air pressure of the connecting pipe 1 is reduced, the water flow is increased, and the rotating speed of the turbine 1.3 is increased;
After the gas in the connecting pipe 1 is discharged, the flow speed of water is increased, so that the water flow drives the turbine 1.3 to rotate at a high speed, the centrifugal force generated by the turbine 1.3 under the condition of rotating at a high speed is larger, and then each driving piece 1.41 moves in the radial direction of the central disk 1.40, so that each driving piece 1.41 drives the meshing piece 1.42 to move towards a state of being not meshed with the central gear 1.50, the meshing piece 1.42 compresses the spring 1.402 in the moving process, the turbine 1.3 drives the central disk 1.40 to rotate, the central gear 1.50 is coaxially and rotatably connected with the central disk 1.40, the central gear 1.50 is in a relatively static state, and then the sealing block 1.20 is positioned in the closed exhaust channel 1.2, so that the air pressure in the connecting pipe 1 is gradually increased along with the time, the boiling point of the water is further improved, and the heat exchange time is shortened;
When the air pressure in the connecting pipe 1 increases again, the flow rate of water is slower at this time, so that the flow rate of the turbine 1.3 is also slower, at this time, the spring 1.402 has a tendency to recover to the original length, so that each engagement member 1.42 moves towards the position of the corresponding central gear 1.50, since the central gear 1.50 is in a relatively static state in a state that the engagement member 1.42 is not engaged with the central gear 1.50, and the central disk 1.40 is transplanted in an active state, the meshing process of the engagement portion 1.422 and the central gear 1.50 inevitably generates a tooth striking phenomenon, and after the engagement portion 1.422 abuts against the central gear 1.50, the central gear 1.50 is rotated under the action of the spiral spring 1.52 and then is recovered, so that the tooth striking phenomenon does not occur in the process of the engagement member 1.42 and the central gear 1.50.
While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that modifications may be made to the described embodiments in various different ways without departing from the spirit and scope of the invention. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive of the scope of the invention, which is defined by the appended claims.
Claims (8)
1. The utility model provides a well deep geothermal heat get device in pit, includes connecting pipe (1) and exhaust passage (1.2), its characterized in that: further comprises: sealing block (1.20): which is arranged in the exhaust channel (1.2) and has a first position for closing the exhaust channel (1.2) and a second position for opening the exhaust channel (1.2);
Turbine (1.3): the device is rotationally connected in the connecting pipe (1) and is used for detecting the water flow;
A transmission mechanism: which is arranged on the turbine (1.3) and is connected with the sealing block (1.20);
the transmission mechanism comprises a driving gear assembly (1.4) which is coaxially and fixedly connected with the turbine (1.3), and a driven gear assembly (1.5) is coaxially and rotatably connected to the driving gear assembly (1.4);
The drive gear assembly (1.4) has a first position in which it meshes with the driven gear assembly (1.5) and a second position in which it does not mesh with the driven gear assembly (1.5);
The driving gear assembly (1.4) comprises a central disc (1.40) which is coaxially and fixedly connected with the turbine (1.3), a plurality of meshing pieces (1.42) and a plurality of driving pieces (1.41) are arranged on the central disc (1.40) in the radial direction, and the meshing pieces (1.42) and the driving pieces (1.41) are arranged in a one-to-one correspondence mode;
When the rotating speed of the turbine (1.3) is smaller than a preset value, the transmission assembly is enabled to drive the sealing block (1.20) to move to a second position for opening the exhaust channel (1.2) so as to realize the exhaust of the gas in the connecting pipe (1).
2. A downhole heat extracting device for mid-deep geothermal heat according to claim 1, wherein each engagement member (1.42) is connected to the central plate (1.40) by a spring (1.402).
3. A downhole heat extracting device according to claim 2, wherein the engagement members (1.42) and the driving members (1.41) are slidably connected.
4. A downhole heat extracting device for mid-deep geothermal heat according to claim 1, wherein the driven gear assembly (1.5) comprises a sun gear (1.50) coaxially and rotatably connected with a central disc (1.40), and a connecting shaft (1.53) is coaxially sleeved on the sun gear (1.50).
5. A downhole heat extracting device for mid-deep geothermal heat according to claim 4, wherein a transmission rod (1.6) is provided between the sun gear (1.50) and the sealing block (1.20).
6. The underground geothermal downhole heat extraction device according to claim 5, wherein a spiral spring (1.52) is arranged between the sun gear (1.50) and the connecting shaft (1.53), so that tooth striking phenomenon is avoided when the sun gear (1.50) is meshed with the meshing piece (1.42).
7. A downhole geothermal heat collector according to claim 6, wherein each engagement member (1.42) is provided with an engagement portion (1.422) for engaging with the sun gear (1.50), each engagement portion (1.422) enclosing a ring gear when each engagement member (1.42) is in the first position for engaging with the sun gear (1.50).
8. The underground geothermal heat collecting device according to claim 7, wherein a sleeve (1.51) is coaxially arranged on the sun gear (1.50), a connecting shaft (1.53) is sleeved in the sleeve (1.51), and the spiral spring (1.52) is sleeved on the connecting shaft (1.53) in an sleeved mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210814707.0A CN115075896B (en) | 2022-07-11 | 2022-07-11 | Underground geothermal heat taking device for middle and deep layers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210814707.0A CN115075896B (en) | 2022-07-11 | 2022-07-11 | Underground geothermal heat taking device for middle and deep layers |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115075896A CN115075896A (en) | 2022-09-20 |
| CN115075896B true CN115075896B (en) | 2024-05-28 |
Family
ID=83260079
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210814707.0A Active CN115075896B (en) | 2022-07-11 | 2022-07-11 | Underground geothermal heat taking device for middle and deep layers |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115075896B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW201721019A (en) * | 2015-12-08 | 2017-06-16 | Metal Ind Res & Dev Ct | Device and method of heat retrieval under geothermal well in which hot water is caused to accelerate and circulate around an underground terminal of a heat retrieval tube |
| CN108730551A (en) * | 2018-05-28 | 2018-11-02 | 贵州环科环境工程有限公司 | A kind of triple valve |
| CN208546278U (en) * | 2018-07-16 | 2019-02-26 | 陕西四季春清洁热源股份有限公司 | A kind of novel dry-hot-rock geothermal quarrying apparatus |
| CN110230896A (en) * | 2019-05-24 | 2019-09-13 | 中国石油大学(北京) | Underground takes thermal and underground heat taking method |
| CN113882836A (en) * | 2021-05-24 | 2022-01-04 | 中国石油天然气集团有限公司 | Method for realizing geothermal power generation by double-working-medium underground heat exchange and heat exchange production structure |
-
2022
- 2022-07-11 CN CN202210814707.0A patent/CN115075896B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW201721019A (en) * | 2015-12-08 | 2017-06-16 | Metal Ind Res & Dev Ct | Device and method of heat retrieval under geothermal well in which hot water is caused to accelerate and circulate around an underground terminal of a heat retrieval tube |
| CN108730551A (en) * | 2018-05-28 | 2018-11-02 | 贵州环科环境工程有限公司 | A kind of triple valve |
| CN208546278U (en) * | 2018-07-16 | 2019-02-26 | 陕西四季春清洁热源股份有限公司 | A kind of novel dry-hot-rock geothermal quarrying apparatus |
| CN110230896A (en) * | 2019-05-24 | 2019-09-13 | 中国石油大学(北京) | Underground takes thermal and underground heat taking method |
| CN113882836A (en) * | 2021-05-24 | 2022-01-04 | 中国石油天然气集团有限公司 | Method for realizing geothermal power generation by double-working-medium underground heat exchange and heat exchange production structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115075896A (en) | 2022-09-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5957220A (en) | Percussion drill assembly | |
| CN105735929B (en) | The SAW Oscillators of efficient rock-breaking are realized using impact function | |
| CN115075896B (en) | Underground geothermal heat taking device for middle and deep layers | |
| JP2018534487A (en) | A device that generates electricity by dropping a heavy object in the hydraulic fluid | |
| CN115931430A (en) | Soil sampling device based on new forms of energy power supply | |
| CN107780831B (en) | Double frequency axial impact tool | |
| CN105525868B (en) | A kind of pulsating double direction impulse device | |
| CN101539178A (en) | Deflective transmission-type clutch | |
| CN107542662A (en) | A kind of portable Roots's guiding valve vacuum pump set | |
| CN210829061U (en) | All-metal downhole power drilling tool based on multi-stage double-plunger-eccentric gear mechanism | |
| CN112502609A (en) | Full-open type rotary-punching screw drill | |
| CN111379590B (en) | Drainage system and drainage method in tunnel operation period | |
| CN110593752A (en) | All-metal downhole power drilling tool based on multi-stage double-plunger-eccentric gear mechanism | |
| CN207195189U (en) | A kind of portable Roots's guiding valve vacuum pump set | |
| CN116220596A (en) | Drilling coring equipment | |
| CN206785614U (en) | A kind of opposed type plunger pump of plunger pump valve group and the application valve group | |
| CN109780070A (en) | A kind of anti skid bearing | |
| CN113175414B (en) | Energy-saving green building structure | |
| CN103925202B (en) | Colliery pump at the bottom of ponding pump drainage hole | |
| CN209908399U (en) | Downhole drilling tool driven by sliding vane motor | |
| CN218717243U (en) | Wind-heat energy device for green building | |
| CN213953800U (en) | Rainwater can be collected and utilize mechanism | |
| US4401159A (en) | Jet engine pump and downhole heater | |
| JP2016503860A (en) | Mechanism for generating electrical energy by dropping weight elements | |
| CN219455622U (en) | Boiler fly ash sampling device of thermal power factory |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |