CN115075896A - Underground heating device for middle-deep geothermal energy - Google Patents
Underground heating device for middle-deep geothermal energy Download PDFInfo
- Publication number
- CN115075896A CN115075896A CN202210814707.0A CN202210814707A CN115075896A CN 115075896 A CN115075896 A CN 115075896A CN 202210814707 A CN202210814707 A CN 202210814707A CN 115075896 A CN115075896 A CN 115075896A
- Authority
- CN
- China
- Prior art keywords
- turbine
- connecting pipe
- sealing block
- heating device
- deep geothermal
- 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.)
- Granted
Links
- 238000010438 heat treatment Methods 0.000 title claims description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 72
- 238000007789 sealing Methods 0.000 claims abstract description 39
- 230000005540 biological transmission Effects 0.000 claims abstract description 33
- 238000000605 extraction Methods 0.000 claims description 2
- 239000007789 gas Substances 0.000 description 29
- 238000000034 method Methods 0.000 description 9
- 238000009835 boiling Methods 0.000 description 5
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- 238000010009 beating Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- UBAZGMLMVVQSCD-UHFFFAOYSA-N carbon dioxide;molecular oxygen Chemical compound O=O.O=C=O UBAZGMLMVVQSCD-UHFFFAOYSA-N 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 210000003608 fece Anatomy 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
Images
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: sealing block: the exhaust passage is arranged in the exhaust passage and is provided with a first position for closing the exhaust passage and a second position for opening the exhaust passage; a turbine: the water flow detector is rotationally connected in the connecting pipe and used for detecting the water flow; the transmission mechanism is as follows: the sealing block is arranged on the turbine and connected with the sealing block; when the rotating speed of the turbine is smaller than the preset value, the transmission assembly drives the sealing block to move to the second position for opening the exhaust passage so as to exhaust gas in the connecting pipe. According to the underground heat-taking device for the middle-deep geothermal heat, the rotating speed of the turbine is used for detecting the size of water flow, the turbine drives the transmission assembly to move, the transmission assembly drives the sealing block to move to open the exhaust channel to exhaust gas in the connecting pipe, 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 middle-deep geothermal underground heat taking device.
Background
The ground temperature is the temperature condition of the joint between the atmosphere and the ground surface. The temperature of the surface soil is referred to as the ground temperature, and the temperature in the soil below the ground is referred to as the temperature in the ground. The ground temperature is measured by a special ground thermometer. With the development of energy, geothermal heat is utilized by pumping water out of the ground surface through a pipeline after heat exchange is carried out on the water through geothermal heat.
The invention patent with the name of underground heat taking device and method is CN 110230896B, publication date 2020.10.27, which comprises the following steps: the water pump comprises a water pump, a first sleeve and an extension pipe, wherein 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 is communicated with the upper part of the second sleeve.
In the prior art including the above patent, during the process of exploiting terrestrial heat, it is usually necessary to pump underground hot water to the ground surface, a water pump is generally used to pump water at a suitable position below the liquid level of still water, and hot water is pumped to the ground surface through a pipeline for utilization, but since the temperature of water gradually rises during heating, a small amount of gas such as oxygen and carbon dioxide dissolved in water is separated out from water, heated gas gradually fills the upper part of the connecting pipe, and the water flow in the connecting pipe is small under the condition that the head of the water pump is not changed, in the prior art of the above patent, although an exhaust pipe is used to exhaust the gas filled above the connecting pipe through an exhaust passage, since the exhaust passage is communicated with the external air pressure, the boiling point of water is 100 degrees celsius, if the air pressure in the connecting pipe is increased, the boiling point of water is higher, the time for heat exchange is shorter after the boiling point of water is higher, but if the air pressure of the connecting pipe is too large, the flow rate of water is smaller under the condition that the lift of the water pump is not changed, and the time for pumping underground water is further prolonged.
Disclosure of Invention
The invention aims to provide a downhole heating device for mid-deep geothermal heat, which is used for solving the defects in the prior art.
In order to achieve the above purpose, the invention provides the following technical scheme: the utility model provides a well heat-taking device of well deep geothermal heat, includes connecting pipe and exhaust passage, still includes: sealing block: it is set in the exhaust channel, and has the first position for closing the exhaust channel and the second position for opening the exhaust channel; a turbine: the water flow detector is rotationally connected in the connecting pipe and used for detecting the water flow; the transmission mechanism is as follows: the sealing block is arranged on the turbine and is connected with the sealing block; when the rotating speed of the turbine is smaller than the preset value, the transmission assembly drives the sealing block to move to the second position for opening the exhaust passage so as to exhaust 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 to the driving gear assembly;
preferably, the drive gear assembly has a first position in which it engages the driven gear assembly and a second position in which it does not engage the driven gear assembly.
Preferably, the driving gear assembly comprises a central disc coaxially and fixedly connected with the turbine, a plurality of engaging members and a plurality of driving members are arranged in the radial direction of the central disc, and each engaging member and each driving member are arranged in a one-to-one correspondence manner.
Preferably, each of the engaging members is connected to the central plate by a spring.
Preferably, each of the engaging members and each of the driving members are slidably connected to each other.
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 volute spiral spring is arranged between the central gear and the connecting shaft, so that the gear beating phenomenon is avoided when the central gear is meshed with the meshing piece.
Preferably, a transmission rod is arranged between the central gear and the sealing block.
Preferably, each of the engaging members is provided with an engaging portion that engages with the sun gear, and each of the engaging portions surrounds a ring gear when each of the engaging members is located at the first position where it engages with the sun gear.
Preferably, a sleeve is coaxially arranged on the central gear, a connecting shaft is sleeved in the sleeve, the volute spiral spring is sleeved on the connecting shaft externally, and the volute spiral spring is sleeved in the sleeve internally.
In the technical scheme, the underground heating device for the medium-deep geothermal heat provided by the invention is used for detecting the size of water flow through the rotating speed of the turbine, after the air pressure in the connecting pipe is increased, the rotating speed of the turbine is reduced due to the fact that the gas is filled in the upper space of the connecting pipe, 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 communicated with the connecting pipe, the gas in the connecting pipe is discharged, the water flow of the connecting pipe can be enlarged, and the underground water collecting time is shortened.
Drawings
In order to more clearly illustrate the embodiments of the present application or technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to the drawings.
FIG. 1 is a schematic view of the overall structure of a downhole heat extraction device for mid-deep geothermal heat;
FIG. 1a is a front sectional view of an underground heat removal device for a medium-deep geothermal heat according to the present invention;
FIG. 1b is an enlarged view of a portion of A in FIG. 1a according to the present invention;
FIG. 2 is a schematic view of the pinion assembly of the present invention;
FIG. 2a is a schematic view of a center disk of the present invention;
FIG. 2b is a schematic view of the engagement member of the present invention;
FIG. 3 is a schematic view of the driven gear assembly of the present invention;
FIG. 4 is a schematic view of the driven gear assembly in a state where the engagement portion is not engaged with the driven gear assembly according to the present invention;
fig. 4a is a schematic view illustrating a state where the engaging part is engaged with the driven gear assembly according to the present invention.
Description of reference numerals:
1. a connecting pipe; 1.1, installing a chamber; 1.2, an exhaust channel; 1.20, sealing the block; 1.21, an exhaust hole; 1.3, a turbine; 1.4, a driving gear assembly; 1.40, central disk; 1.400, an arc-shaped groove; 1.401, connecting groove; 1.402, a spring; 1.41, a driving piece; 1.410, connecting blocks; 1.411, V-shaped rod; 1.42, an engaging piece; 1.420, connecting blocks; 1.421, mounting groove; 1.422, an engaging part; 1.5, a driven gear assembly; 1.50, a central gear; 1.51, a sleeve; 1.52, a volute spiral spring; 1.53, a connecting shaft; 1.6 and a transmission rod.
Detailed Description
In order to make the technical solutions of the present invention better understood, those skilled in the art will now describe the present invention in further detail with reference to the accompanying drawings.
Referring to fig. 1-4a, the present invention provides a medium-deep geothermal downhole heat collecting device, which includes a connecting 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 water flow detector is rotatably connected in the connecting pipe 1 and used for detecting the water flow;
the transmission mechanism is as follows: it is arranged on the turbine 1.3 and is connected with the sealing block 1.20;
when the rotating speed of the turbine 1.3 is less than the preset value, the transmission assembly drives the sealing block 1.20 to move to the second position for opening the exhaust passage 1.2 so as to exhaust 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 an extension pipe, the tail end of the extension pipe is connected with a 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 both belong to the prior art, and are not described in detail in the application, the extension pipe and the water pump are not shown in the figure), the upper end of the connecting pipe 1 is located on the ground surface, the upper end of the connecting pipe 1 is connected with an exhaust passage 1.2 in a through manner, because a small amount of oxygen, carbon dioxide and other gases dissolved in water are heated or can fill the upper space in the connecting pipe 1 at first after the water is heated, the exhaust passage 1.2 is arranged at the upper part of the connecting pipe 1, and a plurality of exhaust holes 1.21 (as shown in fig. 1 and 2) for exhausting are arranged on the exhaust passage 1.2;
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 arranged in the exhaust channel 1.2 in a sliding connection or a rotating connection or a combination of the sliding connection and the rotating connection or other manners;
turbine 1.3: the turbine 1.3 is rotatably connected inside the connecting pipe 1, the turbine 1.3 is located at a position close to 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, a small amount of or no filling gas is filled at the upper part of the connecting pipe 1 at the moment, the flow rate of the water flow passing through the connecting pipe 1 is high, if the filling gas at the upper part of the connecting pipe 1 is high, the air pressure of the connecting pipe 1 is high at the moment, under the condition that the lift of a water pump is not changed, the air pressure in the connecting pipe 1 is high at the moment, the water flow slowly flows into the connecting pipe 1, the rotating speed of the turbine 1.3 is slow, and the detection of the water flow size is realized through the rotating speed of the turbine 1.3;
the transmission mechanism is as follows: the device is arranged on a turbine 1.3 and is coaxially connected with the turbine 1.3, so that 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 a sealing block 1.20; the transmission mechanism is a mechanism for converting circular motion into linear reciprocating motion, the transmission mechanism is driven to move through the turbine 1.3, when the rotating speed of the turbine 1.3 is relatively slow, 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 the gas of the connecting pipe 1 is discharged.
When the rotating speed of the turbine 1.3 is less than the preset value, in the embodiment, the preset value is that when the air pressure of the connecting pipe 1 reaches more than one standard air pressure, and under the condition that the dust of the water pump is not changed, the rotating speed of the turbine 1.3 when the water flow impacts the turbine 1.3 (not considering the friction force between the water flow and the inner wall of the connecting pipe 1 and the turbine 1.3), and when the rotating speed of the turbine 1.3 is the preset value, no matter what the driving assembly is driven, the sealing block 1.20 is driven to move to the second position where the exhaust passage 1.2 is opened, the gas in the connecting pipe 1 is exhausted.
In the using process, when water is heated, a small amount of oxygen is dissolved in the water, the solubility of carbon dioxide and other gases in the water is reduced, and then the heated gas is filled in the upper part of the connecting pipe 1, at the moment, the water pump pumps water, because the air pressure of the connecting pipe 1 is higher than a standard atmospheric pressure, the flow rate of the water is smaller under the condition that the lift of the water pump is unchanged, and further the impact force of the water flow on the turbine 1.3 is smaller, and further the rotating speed of the turbine 1.3 is slower, and further the turbine 1.3 drives the transmission assembly to move so that the transmission assembly drives the sealing block 1.20 to move, and further the sealing block 1.20 is located at the second position for opening the exhaust channel 1.2, the exhaust channel 1.2 is in through connection with the connecting pipe 1, and further the gas of the connecting pipe 1 is exhausted, and further the rotating speed of the turbine 1.3 in the connecting pipe 1 is increased, and the water taking time is saved.
According to the underground heat-taking device for the middle-deep geothermal heat well, the rotating speed of the turbine 1.3 is used for detecting the size of water flow, after 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 the air is filled in the upper space of the connecting pipe 1, 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 communicated with the connecting pipe 1, the air in the connecting pipe 1 is exhausted, the water flow of the connecting pipe 1 can be enlarged, and the underground water collecting time is shortened.
Referring to fig. 1a-4a, in another embodiment provided by the present invention, the transmission mechanism includes a driving gear assembly 1.4 coaxially and fixedly connected with the turbine 1.3, and a driven gear assembly 1.5 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 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 in the radial direction of the central disc 1.40, and the meshing pieces 1.42 and the driving pieces 1.41 are arranged in a one-to-one correspondence manner.
Each engaging member 1.42 is connected to the central disk 1.40 by a spring 1.402.
Each engaging member 1.42 and each driving member 1.41 are slidably connected.
A transmission rod 1.6 is arranged between the central gear 1.50 and the sealing block 1.20.
Referring to fig. 2, the driven gear assembly 1.5 includes a central gear 1.50 coaxially and rotatably connected with the central disc 1.40, and a connecting shaft 1.53 is coaxially sleeved on the central gear 1.50.
Each of the engaging members 1.42 is provided with an engaging portion 1.422 engaging with the sun gear 1.50, and each of the engaging portions 1.422 surrounds a ring gear when each of the engaging members 1.42 is located at the first position engaging with the sun gear 1.50.
Specifically, an installation chamber 1.1 is arranged on the peripheral side of the connecting pipe 1, the installation chamber 1.1 is positioned below the exhaust passage 1.2, and a hollow cavity is used for installing a driving wheel assembly and a driven wheel assembly during installation; the driving gear assembly 1.4 comprises a central disc 1.40 coaxially and fixedly connected with the turbine 1.3, a plurality of arc-shaped grooves 1.400 matched with the driving part 1.41 and a plurality of connecting grooves 1.401 matched with the driving part 1.41 are formed in the radial direction of the central disc 1.40, each connecting groove 1.401 and each arc-shaped groove 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 part 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 engaging member 1.42 comprises a connecting block 1.420 matched with the connecting groove 1.401, each connecting block 1.420 is provided with an engaging part 1.422, two opposite side walls of each connecting block 1.420 are provided with an installing groove 1.421 matched with the V-shaped rod 1.411 in a penetrating way, two ends of each V-shaped rod 1.411 are respectively positioned in the installing grooves 1.421 correspondingly arranged to ensure that the V-shaped rods 1.411 and the connecting blocks 1.420 are relatively connected in a sliding way, a spring 1.402 is fixedly connected in each connecting groove 1.401, 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 opening the exhaust passage 1.2 or closing the exhaust passage 1.2 through up-and-down reciprocating motion), a through groove matched with the sealing block 1.20 is formed in the radial direction of the exhaust passage 1.2, so that the sealing block 1.20 moves up and down in the radial direction of the exhaust passage 1.2, and the exhaust passage 1.2 is opened or closed;
the eccentric position of the central gear 1.50 is hinged with the 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 exhaust device 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, the rotating speed of the turbine 1.3 is lower, the driving gear assembly 1.4 coaxially and fixedly connected with the turbine 1.3 is meshed with the driven gear in an assembly, the driving gear assembly 1.4 is meshed with the driven gear assembly 1.5 to drive the driven gear assembly 1.5 to rotate, the driven gear drives the sealing block 1.20 to move to the second position where the vent pipeline is opened, and the exhaust channel 1.2 is opened, so that the exhaust channel 1.2 is communicated with the connecting pipe 1 to exhaust the gas in the connecting pipe 1;
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 centrifugal force generated by the central disc 1.40 due to the trivial rotation is small, and further the spring 1.402 is in an original long state, so that the spring 1.402 abuts against each meshing part 1.42, further each meshing part 1.422 surrounds a gear ring to be meshed with the central gear 1.50, further the rotating process of the central gear 1.50 drives the sealing block 1.20 to move, further the exhaust channel 1.2 is in an open state, further the gas filled in the connecting pipe 1 is exhausted, at the moment, the air pressure of the connecting pipe 1 is reduced, the water flow is increased, and further the rotating speed of the turbine 1.3 is increased;
at this time, after the gas in the connecting pipe 1 is discharged, the flow rate of the water is increased, so that the water flow drives the turbine 1.3 to rotate at a high speed, a centrifugal force generated under the condition that the turbine 1.3 rotates at a high speed is large, and then each driving member 1.41 moves in the radial direction of the central disc 1.40, so that each driving member 1.41 drives the meshing member 1.42 to move towards a state where the meshing member is not meshed with the central gear 1.50, each meshing member 1.42 compresses the spring 1.402 in the moving process, and then the turbine 1.3 drives the central disc 1.40 to rotate by eating the feces, and the central gear 1.50 is coaxially and rotatably connected with the central disc 1.40, so that the central gear 1.50 is in a relatively static state, and further, the sealing block 1.20 is located in the closed exhaust passage 1.2, so that the gas pressure in the connecting pipe 1 is gradually increased along with the passage of time, the boiling point of the water is increased, and the heat exchange time is shortened.
Referring to fig. 3, in one embodiment of the present invention, a spiral spring 1.52 is disposed between the sun gear 1.50 and the connecting shaft 1.53 to prevent gear rattling when the sun gear 1.50 is engaged with the 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, and a volute spring 1.52 is sleeved on the connecting shaft 1.53 and sleeved in the sleeve 1.51.
Specifically, a sleeve 1.51 is coaxially arranged on the other end face of the central gear 1.50, which is hinged to the transmission rod 1.6, the sleeve 1.51 is of a hollow structure at the end, a volute spring 1.52 is sleeved on the sleeve 1.51, a connecting shaft 1.53 is sleeved at the center of the volute spring 1.52, one end of the volute spring 1.52 is fixedly connected into the sleeve 1.51, the other end of the volute spring 1.52 is fixedly connected onto the connecting shaft 1.53, and the central gear 1.50 is rotatably connected onto the central disc 1.40 through the connecting shaft 1.53.
When the gas exhaust device 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, the rotating speed of the turbine 1.3 is lower, the driving gear assembly 1.4 coaxially and fixedly connected with the turbine 1.3 is meshed with the driven gear in an assembly, the driving gear assembly 1.4 is meshed with the driven gear assembly 1.5 to drive the driven gear assembly 1.5 to rotate, the driven gear drives the sealing block 1.20 to move to the second position where the vent pipeline is opened, and the exhaust channel 1.2 is opened, so that the exhaust channel 1.2 is communicated with the connecting pipe 1 to exhaust the gas in the connecting pipe 1;
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 centrifugal force generated by the central disc 1.40 due to the trivial rotation is small, and further the spring 1.402 is in an original long state, so that the spring 1.402 abuts against each meshing part 1.42, further each meshing part 1.422 surrounds a gear ring to be meshed with the central gear 1.50, further the rotating process of the central gear 1.50 drives the sealing block 1.20 to move, further the exhaust channel 1.2 is in an open state, further the gas filled in the connecting pipe 1 is exhausted, at the moment, the air pressure of the connecting pipe 1 is reduced, the water flow is increased, and further the rotating speed of the turbine 1.3 is increased;
at this time, after the gas in the connecting pipe 1 is discharged, the flow rate of the water is increased, so that the water flow drives the turbine 1.3 to rotate at a high speed, a centrifugal force generated under the condition that the turbine 1.3 rotates at a high speed is large, and then each driving member 1.41 moves in the radial direction of the central disc 1.40, so that each driving member 1.41 drives the meshing member 1.42 to move towards a state where the meshing member is not meshed with the central gear 1.50, each meshing member 1.42 compresses the spring 1.402 in the moving process, and then the turbine 1.3 drives the central disc 1.40 to rotate by eating the excrement, and the central gear 1.50 is coaxially and rotatably connected with the central disc 1.40, so that the central gear 1.50 is in a relatively static state, and further the sealing block 1.20 is positioned in the closed exhaust passage 1.2, so that the gas pressure in the connecting pipe 1 is gradually increased along with the lapse of time, the boiling point of the water is further increased, 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 of recovering to the original length, and further, each meshing element 1.42 moves towards the position of the central gear 1.50, because the central gear 1.50 is in a relatively stationary state under the state that the meshing element 1.42 is not meshed with the central gear 1.50, and the central disk 1.40 is transplanted in an active state, at this time, the meshing process of the meshing part 1.422 and the central gear 1.50 is bound to generate the tooth beating phenomenon, after the meshing part 1.422 is contacted with the central gear 1.50, the central gear 1.50 is rotated under the action of the spiral spring 1.52, and then, the resetting is performed, so that the tooth beating phenomenon is not generated in the process of the meshing element 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 the described embodiments may be modified in various different ways without departing from the spirit and scope of the invention. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the invention.
Claims (10)
1. A heat extraction device under a middle-deep geothermal well comprises a connecting pipe (1) and an exhaust channel (1.2), and is characterized in that: further comprising: 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 water flow detector is rotationally connected in the connecting pipe (1) and used for detecting the water flow;
the transmission mechanism is as follows: it is arranged on the turbine (1.3) and is connected with the sealing block (1.20);
when the rotating speed of the turbine (1.3) is less than the preset value, the transmission assembly drives the sealing block (1.20) to move to the second position for opening the exhaust passage (1.2) so as to exhaust the gas in the connecting pipe (1).
2. A mid-deep geothermal downhole heating device according to claim 1, wherein the transmission mechanism comprises a driving gear assembly (1.4) 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 driving gear assembly (1.4) has a first position engaged with the driven gear assembly (1.5) and a second position disengaged from the driven gear assembly (1.5).
3. A mid-deep geothermal downhole heating device according to claim 2, wherein the drive gear assembly (1.4) comprises a central disc (1.40) coaxially and fixedly connected with the turbine (1.3), the central disc (1.40) is provided with a plurality of engaging members (1.42) and a plurality of driving members (1.41) in a radial direction, and each engaging member (1.42) and each driving member (1.41) are arranged in one-to-one correspondence.
4. A mid-deep geothermal downhole heating device according to claim 3, wherein each engagement member (1.42) is connected to the central plate (1.40) by a spring (1.402).
5. A mid geothermal downhole heating device according to claim 4, characterised in that each engagement member (1.42) and each driving member (1.41) are slidably connected to each other.
6. A mid-deep geothermal downhole heating device according to claim 3, wherein the driven gear assembly (1.5) comprises a sun gear (1.50) coaxially rotationally connected to the central disc (1.40), and a connecting shaft (1.53) is coaxially sleeved on the sun gear (1.50).
7. A mid-deep geothermal downhole heating device according to claim 6, characterised in that a transmission rod (1.6) is arranged between the sun gear (1.50) and the sealing block (1.20).
8. The downhole heating device for mid-deep geothermal heat according to claim 6, wherein a volute spring (1.52) is arranged between the sun gear (1.50) and the connecting shaft (1.53) to avoid gear rattling when the sun gear (1.50) is engaged with the engaging member (1.42).
9. A mid-deep geothermal downhole heating device according to claim 6, characterized in that each of the engagement members (1.42) is provided with an engagement portion (1.422) for engaging with the sun gear (1.50), each of the engagement portions (1.422) enclosing a ring gear when each of the engagement members (1.42) is in the first position for engaging with the sun gear (1.50).
10. A downhole heating device for medium-deep geothermal heat according to claim 7, characterized in that 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), the volute spring (1.52) is sleeved on the connecting shaft (1.53) and sleeved in the sleeve (1.51).
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 true CN115075896A (en) | 2022-09-20 |
| CN115075896B 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 |
|---|---|
| CN115075896B (en) | 2024-05-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103899282B (en) | Flow control system with gas interference prevention isolation device in downhole fluid drainage operation | |
| JP2010540834A (en) | Available energy generator and associated method | |
| CN103352855A (en) | Novel hydrodynamic turbine pump free of shaft seal structure | |
| CN208311059U (en) | Vacuum aided self priming pump | |
| CN115075896A (en) | Underground heating device for middle-deep geothermal energy | |
| CN210302531U (en) | Degassing tank for lubricating oil production | |
| CN102400923A (en) | Submersible pump driven by motor | |
| CN111335846B (en) | Coal bed gas exploitation well-flushing equipment | |
| CN111379590B (en) | Drainage system and drainage method in tunnel operation period | |
| CN108468647A (en) | Vacuum aided self priming pump | |
| CN110359890A (en) | A kind of motor driven complementation two-wheel bubble rod row delivery device | |
| CN218884298U (en) | Solar heating structure | |
| JP2011241816A (en) | Display mechanism illustrating fluid dynamics | |
| CN201606228U (en) | Plunger type diaphragm pump of submersible motor | |
| CN201884214U (en) | Vertical dual-blade wind power generator | |
| CN215585613U (en) | Equipment for recycling geothermal resources of abandoned mine | |
| CN109458177B (en) | Umbrella-shaped motor-driven underground intelligent sampler | |
| CN209908399U (en) | Downhole drilling tool driven by sliding vane motor | |
| CN202040053U (en) | Plunger-type diaphragm pump for submersible motor | |
| CN111590113A (en) | Environment-friendly electric drill | |
| CN219262340U (en) | Reservoir pore throat cleaning device for petroleum exploitation | |
| CN213953800U (en) | Rainwater can be collected and utilize mechanism | |
| CN214746955U (en) | Rock debris air drying device | |
| CN216131154U (en) | Damping water inlet device of centrifugal pump | |
| CN109441344A (en) | The processing technology of flexure type inverted well |
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 |