Gas sampling device suitable for medium-high temperature geothermal field

Abstract

The invention discloses a gas sampling device suitable for a medium-high temperature geothermal field, and relates to the technical field of high temperature gas sampling, the gas sampling device comprises a first ring pipe filled with liquid nitrogen gas so that the temperature of the outer surface of the first ring pipe is low, and a second ring pipe having a diameter range larger than that of the first ring pipe and having a diameter range larger than that of the second ring pipe. According to the gas sampling device suitable for the medium-high temperature geothermal field, gas in the medium-high temperature geothermal field is rapidly cooled by arranging the first ring pipe and the second ring pipe which are filled with low-temperature liquid nitrogen gas; in particular, for corresponding electrical equipment, a plurality of annular baffles are arranged at the bottoms of a first annular pipe and a second annular pipe to divide the medium-high-temperature geothermal field gas into areas and guide the medium-high-temperature geothermal field gas, so that the working efficiency of the medium-high-temperature geothermal field gas is improved; a part of medium-high temperature geothermal field gas penetrating through the ventilation round hole is prevented from penetrating through the space between the first ring pipe and the second ring pipe and the space between the second ring pipe and the inner wall of the sampling barrel and is difficult to fully contact with the sampling barrel for cooling.

Description

Technical Field

[0001] The invention relates to the technical field of high-temperature gas sampling, and in particular to a gas sampling device suitable for medium- and high-temperature geothermal fields. Background Art

[0002] Medium and high temperature geothermal fields refer to geothermal resource areas with temperatures between 60-150℃. Their formation is closely related to the tectonic movement, magma activity and groundwater circulation inside the earth. Medium and high temperature geothermal fields are precious gifts given to us by nature. They are hidden thousands of meters underground. Through professional exploration and mining technology, we can use this heat energy. Compared with traditional fossil energy, the development and utilization of medium and high temperature geothermal fields has many advantages. First, it does not produce pollutants such as carbon dioxide and sulfide, which is environmentally friendly. Secondly, geothermal resources are a stable energy source that is not affected by factors such as seasons and climate and can be supplied continuously. In addition, the distribution of medium and high temperature geothermal fields is relatively wide and has been found in many areas, which provides the possibility for the local supply of energy. In the exploration and mining projects of medium and high temperature geothermal fields, the medium and high temperature gases contained in them have also become a sampling research item;

[0003] When sampling the gas in medium and high temperature geothermal fields, the temperature of the sampled gas is generally too high. After a long period of sampling, the high-temperature gas fills the interior of the container and causes the overall temperature of the sampling equipment to rise sharply. When the equipment samples the gas for a long time, its working efficiency will also decrease as the temperature rises sharply, especially the corresponding electrical equipment. Therefore, we propose a gas sampling device suitable for medium and high temperature geothermal fields. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a gas sampling device suitable for medium and high temperature geothermal fields, comprising:

[0005] A collecting pipe, which is used to comprehensively collect medium- and high-temperature geothermal field gases at the bottom of the equipment and in the surrounding area, and a sampling tube is provided at the top of the collecting pipe;

[0006] A high-pressure air pump, which is used to pump the filtered and cooled medium- and high-temperature geothermal field gas into a container for storage, and a sampling container is provided on the top of the high-pressure air pump;

[0007] The cooling mechanism quickly cools down the gas through full contact with the medium and high temperature geothermal field gas, so as to prevent the equipment from reducing its working efficiency as the temperature rises sharply when sampling gas for a long time, especially the corresponding electrical equipment;

[0008] A filtering mechanism is used to filter dust and other particulate impurities sucked into the gas from the medium and high temperature geothermal field to prevent the gas from containing too much dust and other particulate impurities that affect subsequent observation and research;

[0009] The top of the collecting tube is connected to the bottom of the sampling cylinder, the top of the sampling cylinder is connected to the air inlet of the high-pressure air pump, the air outlet of the high-pressure air pump is connected to the bottom of the sampling container, the inner wall of the sampling cylinder is fixedly connected with a cooling mechanism, and the bottom of the cooling mechanism is fixedly connected with a filtering mechanism;

[0010] Wherein, the cooling mechanism comprises:

[0011] A first annular tube, the first annular tube is filled with liquid nitrogen gas so that the outer surface temperature of the tube is relatively low, and a short connecting tube is arranged on the outer side of the first annular tube;

[0012] The second annular tube has a larger diameter than the first annular tube. The first annular tube and the second annular tube filled with low-temperature liquid nitrogen gas are provided to quickly cool down the medium- and high-temperature geothermal field gas, so as to prevent the equipment from reducing its working efficiency as the temperature rises sharply when sampling gas for a long time, especially the corresponding electrical equipment. A long through-tube is provided on the outer side of the second annular tube;

[0013] The outer side of the first ring tube is connected to one end of the short connecting tube, the end of the short connecting tube away from the first ring tube is connected to the second ring tube, and the outer side of the second ring tube is connected to one end of the long through tube;

[0014] One end of the long through-tube away from the second ring tube passes through the sampling tube and is fixedly connected to the sampling tube;

[0015] An outer circular hole is provided on the outside of the collecting tube, an arc-shaped through hole is provided on the outside of the sampling barrel, an arc-shaped through groove is provided on the inner wall of the arc-shaped through hole, an arc-shaped sliding door is slidably connected to the inner wall of the arc-shaped through groove, and an oblique support rod is fixedly connected to the outer side of the sampling barrel;

[0016] There are multiple outer circular holes, and the multiple outer circular holes are evenly distributed on the outside of the collecting tube; there are three diagonal bracing rods, and the three diagonal bracing rods are evenly distributed on the outside of the sampling tube;

[0017] The cooling mechanism also includes an inner oblique ring plate. An inner oblique ring plate that fully covers the inner area of ​​the sampling tube is arranged at the bottom of the annular baffle to block the rising medium and high temperature geothermal field gas, so as to prevent the medium and high temperature geothermal field gas from contacting the electrical equipment at the bottom of the first annular tube when it is not quickly cooled down, causing it to heat up rapidly and reduce its working efficiency. A ventilation hole is opened on the outer side of the inner oblique ring plate. By arranging a plurality of ventilation holes, the medium and high temperature geothermal field gas is evenly dispersed between each annular baffle, so as to prevent the medium and high temperature geothermal field gas content between each annular baffle from being uneven. The first annular tube and the second annular tube have different cooling efficiencies. An annular baffle is fixedly connected to the inner side of the inner oblique annular plate. A plurality of annular baffles are arranged at the bottom of the first annular tube and the second annular tube to divide the medium and high temperature geothermal field gas into sections for guidance, thereby preventing a portion of the medium and high temperature geothermal field gas passing through the vent holes from passing between the first annular tube and the second annular tube and between the second annular tube and the inner wall of the sampling tube and being difficult to fully contact and cool down. An inner circular plate is fixedly connected to the inner side of the first annular tube, and a bottom connecting rod is fixedly connected to the bottom of the inner circular plate.

[0018] The inner oblique ring plate is sleeved on the filter mechanism and rotatably connected to the filter mechanism, the outer side of the inner oblique ring plate is fixedly connected to the inner wall of the sampling tube, the bottom of the bottom connecting rod is fixedly connected to the top of the filter mechanism, a plurality of circular ventilation holes are provided, and the plurality of circular ventilation holes are evenly distributed on the outer side of the inner oblique ring plate, and three annular baffles are provided, and the three annular baffles are evenly distributed on the inner side of the inner oblique ring plate.

[0019] Furthermore, the filtering mechanism comprises a filter plate, a dust filter circular hole is provided at the bottom of the filter plate, a linkage rod is passed through the top of the filter plate and is rotatably connected, a cleaning assembly is sleeved on the outer side of the linkage rod and is fixedly connected, a driving shaft of a motor is fixedly connected to the top of the linkage rod, a square scraper is fixedly connected to the outer side of the linkage rod, and the square scraper scrapes and cleans the bottom of the inner wall of the sampling tube when the square scraper rotates, so as to prevent a large amount of dust and other particulate impurities filtered out by the dust filter circular hole from falling and accumulating at the bottom of the inner wall of the sampling tube and being difficult to handle, and a rectangular long The hole, the inner wall of the rectangular long hole is fixedly connected with a retraction spring, one end of the retraction spring is fixedly connected with an I-shaped scraper, and the I-shaped scraper scrapes and cleans the two sides of the square scraper when sliding, so as to prevent the square scraper from cleaning the dust and other granular impurities for a long time and the two sides are adhered with high-temperature adhesion particles, which affects its cleaning efficiency; the I-shaped scraper is fixedly connected with a corrugated connecting piece on one side close to the retraction spring, and the corrugated connecting piece is arranged on both sides of the retraction spring to cover the retraction spring at all times, so as to prevent the cleaned dust and other granular impurities from continuously accumulating on the inner side of the retraction spring and affecting its spring expansion and contraction. Performance, the I-shaped scraper is fixedly connected with an arc-shaped scraper on one side close to the retraction spring, and the movable arc-shaped scraper scrapes and cleans the outer side of the corrugated connecting piece to prevent excessive dust and other particulate impurities from continuously accumulating in the depression of the corrugated connecting piece after long-term use, affecting its contraction performance; the outer side of the filter plate is fixedly connected to the inner wall of the sampling cylinder, the top of the motor is fixedly connected to the bottom of the bottom connecting rod, the top of the linkage rod passes through the inner oblique ring plate and is rotatably connected to the inner oblique ring plate, a plurality of dust filter circular holes are provided, and the plurality of dust filter circular holes are evenly distributed at the bottom of the filter plate, There are two square scrapers, and the two square scrapers are evenly distributed on the outside of the linkage rod, the top of the square scraper is fixedly connected to the bottom of the cleaning assembly, the I-shaped scraper is slidably connected to the inner wall of the rectangular long hole, the outer side of the retraction spring is fixedly connected to one side of the corrugated connecting piece, the side of the corrugated connecting piece away from the I-shaped scraper is fixedly connected to the inner wall of the rectangular long hole, four corrugated connecting pieces are provided, and the four corrugated connecting pieces are evenly distributed on one side of the I-shaped scraper, and four arc-shaped scrapers are provided, and the four arc-shaped scrapers are evenly distributed on one side of the I-shaped scraper.

[0020] Furthermore, the cleaning assembly includes a first set of plates, the top of the first set of plates is fixedly connected to an extension spring, the top of the extension spring is fixedly connected to a second set of plates, the top of the second set of plates is fixedly connected to a short connecting rod, the top of the short connecting rod is fixedly connected to a third set of plates, the top of the third set of plates is provided with a T-slot, the inner wall of the T-slot is slidably connected to a T-sliding block, and the engagement of the T-sliding block and the T-slot facilitates the disassembly and cleaning of the rectangular scraper, so as to prevent the rectangular scraper from accumulating too much dust and other particulate debris on the surface when cleaning and dust catching for a long time, which affects its cleaning effect; one side of the T-sliding block is fixedly connected to a rectangular scraper, and when the rectangular scraper rotates, the bottom surface of the filter plate is scraped and cleaned, so as to prevent the dust and other particulate impurities filtered by the bottom surface of the filter plate from being affected by high temperature and adhering to the surface of the filter plate and being difficult to handle; rectangular side grooves are provided on both sides of the rectangular scraper, and dust screening circular holes are provided on the inner wall of the rectangular side groove, and a plurality of dust screening circular holes are provided to screen the medium and high temperature geothermal fields in the bottom area of ​​the filter plate The dust and other particulate impurities in the gas are screened and captured to prevent some fallen dust and other particulate impurities from being affected by suction and flying upward to the bottom surface of the filter plate again. The inner wall of the rectangular side groove is fixedly connected with an arc-shaped steel brush. When the arc-shaped steel brush rotates, it rubs and cleans the bottom surface of the filter plate and the inside of the dust filter circular hole to prevent the dust filter circular hole from being mixed with some dust and other particulate impurities after filtering for a long time, and it is difficult for the rectangular scraper to completely clean it. The bottom of the first set of plates is fixedly connected to the top of the square scraper, the first set of plates is sleeved on the linkage rod and fixedly connected to the linkage rod, the second set of plates is sleeved on the linkage rod and slidably connected to the linkage rod, the third set of plates is sleeved on the linkage rod and slidably connected to the linkage rod, two T-slots are provided, and the two T-slots are evenly distributed on the top of the third set of plates, a plurality of dust screening circular holes are provided, and the plurality of dust screening circular holes are evenly distributed on the inner wall of the rectangular side groove, and a plurality of arc-shaped steel brushes are provided, and the plurality of arc-shaped steel brushes are evenly distributed on the inner wall of the rectangular side groove.

[0021] The present invention has the beneficial effects:

[0022] 1. The present invention quickly cools down the medium and high temperature geothermal field gas by arranging the first and second ring tubes filled with low temperature liquid nitrogen gas, so as to prevent the working efficiency of the equipment from being reduced as the temperature rises sharply when the equipment performs gas sampling for a long time, especially the corresponding electrical equipment. When the square scraper rotates, it scrapes and cleans the bottom of the inner wall of the sampling tube, so as to prevent a large amount of dust and other granular impurities filtered out by the dust filter circular holes from falling and accumulating at the bottom of the inner wall of the sampling tube and being difficult to handle. When the rectangular scraper rotates, it scrapes and cleans the bottom surface of the filter plate, so as to prevent the dust and other granular impurities filtered out by the bottom surface of the filter plate from being affected by the high temperature and adhering to the surface of the filter plate and being difficult to handle.

[0023] 2. The present invention provides a cooling mechanism, and provides an inner oblique annular plate that fully covers the inner area of ​​the sampling tube at the bottom of the annular baffle to block the rising medium and high temperature geothermal field gas, so as to prevent the medium and high temperature geothermal field gas from contacting the electrical equipment at the bottom of the first annular tube when it is not quickly cooled down, causing it to rapidly heat up and reduce its working efficiency. By providing a plurality of ventilation holes, the medium and high temperature geothermal field gas is evenly dispersed between the annular baffles, so as to prevent the different cooling efficiencies of the first annular tube and the second annular tube due to the different contents of the medium and high temperature geothermal field gas between the annular baffles. The medium and high temperature geothermal field gas is rapidly cooled down by providing the first annular tube and the second annular tube filled with low temperature liquid nitrogen gas, so as to prevent the working efficiency of the equipment from being reduced as the temperature rises sharply when the equipment performs gas sampling for a long time, especially the corresponding electrical equipment. By providing a plurality of annular baffles at the bottom of the first annular tube and the second annular tube to divide the medium and high temperature geothermal field gas into sections and guide them, it is prevented that a part of the medium and high temperature geothermal field gas passing through the ventilation holes passes between the first annular tube and the second annular tube and between the second annular tube and the inner wall of the sampling tube and is difficult to fully contact and cool it.

[0024] 3. The present invention provides a filtering mechanism. When the square scraper rotates, it scrapes and cleans the bottom of the inner wall of the sampling tube to prevent a large amount of dust and other granular impurities filtered out by the dust filter circular holes from falling and accumulating on the bottom of the inner wall of the sampling tube and becoming difficult to handle. When the I-shaped scraper slides, it scrapes and cleans the two side surfaces of the square scraper to prevent the square scraper from cleaning the dust and other granular impurities for a long time and causing high-temperature adhesion particles to adhere to the two side surfaces, affecting the cleaning efficiency. The corrugated connecting piece is arranged on both sides of the retraction spring to cover the retraction spring at all times to prevent the cleaned dust and other granular impurities from continuously accumulating on the inside of the retraction spring, affecting its spring expansion and contraction performance. The movable arc scraper scrapes and cleans the outer side surface of the corrugated connecting piece to prevent the corrugated connecting piece from continuously accumulating too much dust and other granular impurities in the depression after long-term use, affecting its contraction performance.

[0025] 4. The present invention provides a cleaning component. When the rectangular scraper rotates, the bottom surface of the filter plate is scraped and cleaned, so that dust and other particulate impurities filtered by the bottom surface of the filter plate are prevented from being affected by high temperature and adhering to the surface of the filter plate and being difficult to handle. By providing a plurality of dust screening circular holes, dust and other particulate impurities in the medium and high temperature geothermal field gas in the bottom area of ​​the filter plate are screened and captured, so that some fallen dust and other particulate impurities are prevented from being affected by suction and flying upward to the bottom surface of the filter plate again. When the arc-shaped steel brush rotates, the bottom surface of the filter plate and the inside of the dust screening circular holes are frictionally cleaned, so that after the dust screening circular holes are filtered for a long time, some dust and other particulate impurities are prevented from being mixed inside and difficult to be completely cleaned by the rectangular scraper. The engagement of the T-shaped slider and the T-shaped slot facilitates the disassembly and cleaning of the rectangular scraper, so that too much dust and other particulate impurities are prevented from accumulating on the surface of the rectangular scraper when the rectangular scraper is cleaned and dust captured for a long time, affecting its cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the bottom structure of the gas sampling device of the present invention;

[0027] Figure 2 This is a schematic diagram of the internal structure of the gas sampling device of the present invention;

[0028] Figure 3 It is a schematic diagram of the structure of the cooling mechanism of the present invention;

[0029] Figure 4 It is a schematic diagram of the bottom side cross-sectional structure of the cooling mechanism of the present invention;

[0030] Figure 5 It is a schematic diagram of the structure of the filtering mechanism of the present invention;

[0031] Figure 6 It is a schematic diagram of the bottom side cross-sectional structure of the filtering mechanism of the present invention;

[0032] Figure 7 This is a schematic diagram of the bottom structure of the cleaning component of the present invention;

[0033] Figure 8 This is a schematic diagram of the cleaning component structure of the present invention;

[0034] In the figure: 1, collecting tube; 2, sampling tube; 3, high-pressure air pump; 4, sampling container; 5, cooling mechanism; 6, filtering mechanism; 7, outer circular hole; 8, arc-shaped through hole; 9, arc-shaped through groove; 10, arc-shaped sliding door; 11, oblique support rod; 501, first annular tube; 502, short connecting tube; 503, second annular tube; 504, long through tube; 505, inner oblique ring plate; 506, ventilation circular hole; 507, annular baffle; 508, inner circular plate; 509, bottom connecting rod; 601, filter plate; 602, dust filter circular hole; 603, linkage rod; 604, cleaning assembly; 605, motor; 606, square scraper; 607, rectangular long hole; 608, retraction spring; 609, I-shaped scraper; 610, corrugated connecting piece; 611, arc scraper; 6041, first set of plates; 6042, extension spring; 6043, second set of plates; 6044, short connecting rod; 6045, third set of plates; 6046, T-slot; 6047, T-sliding block; 6048, rectangular scraper; 6049, rectangular side groove; 60410, dust screening round hole; 60411, arc steel brush. DETAILED DESCRIPTION

[0035] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

[0036] For the first embodiment, please refer to Figure 1-Figure 4 The present invention is a gas sampling device suitable for medium and high temperature geothermal fields, comprising:

[0037] A collecting pipe 1, which is used to comprehensively collect medium- and high-temperature geothermal field gases at the bottom of the equipment and in the surrounding area, and a sampling tube 2 is provided at the top of the collecting pipe 1;

[0038] A high-pressure gas pump 3, which is used to pump the filtered and cooled medium- and high-temperature geothermal field gas into a container for storage. A sampling container 4 is provided on the top of the high-pressure gas pump 3;

[0039] A cooling mechanism 5, which rapidly cools down the temperature by fully contacting the medium- and high-temperature geothermal field gas;

[0040] A filter mechanism 6, which is used to filter out dust and other particulate impurities sucked into the medium- and high-temperature geothermal field gas;

[0041] The top of the collecting tube 1 is connected to the bottom of the sampling tube 2, the top of the sampling tube 2 is connected to the air inlet of the high-pressure air pump 3, the air outlet of the high-pressure air pump 3 is connected to the bottom of the sampling container 4, the inner wall of the sampling tube 2 is fixedly connected with a cooling mechanism 5, and the bottom of the cooling mechanism 5 is fixedly connected with a filtering mechanism 6;

[0042] Wherein, the cooling mechanism 5 comprises:

[0043] A first annular tube 501, wherein the first annular tube 501 is filled with liquid nitrogen gas so that the outer surface temperature of the tube is relatively low, and a short connecting tube 502 is arranged outside the first annular tube 501;

[0044] A second annular tube 503, the diameter of which is larger than that of the first annular tube 501, and a long through tube 504 is disposed on the outer side of the second annular tube 503;

[0045] The outer side of the first annular tube 501 is connected to one end of the short connecting tube 502, the end of the short connecting tube 502 away from the first annular tube 501 is connected to the second annular tube 503, and the outer side of the second annular tube 503 is connected to one end of the long through tube 504;

[0046] One end of the long through tube 504 away from the second ring tube 503 penetrates the sampling tube 2 and is fixedly connected to the sampling tube 2;

[0047] An outer circular hole 7 is formed on the outer side of the collecting tube 1, an arc-shaped through hole 8 is formed on the outer side of the sampling tube 2, an arc-shaped through groove 9 is formed on the inner wall of the arc-shaped through hole 8, an arc-shaped sliding door 10 is slidably connected to the inner wall of the arc-shaped through groove 9, and an oblique support rod 11 is fixedly connected to the outer side of the sampling tube 2;

[0048] There are multiple outer circular holes 7, and the multiple outer circular holes 7 are evenly distributed on the outside of the collecting tube 1. There are three diagonal support rods 11, and the three diagonal support rods 11 are evenly distributed on the outside of the sampling tube 2.

[0049] The cooling mechanism 5 further includes an inner oblique ring plate 505, a vent hole 506 is provided on the outer side of the inner oblique ring plate 505, an annular baffle 507 is fixedly connected to the inner side of the inner oblique ring plate 505, an inner circular plate 508 is fixedly connected to the inner side of the first ring tube 501, and a bottom connecting rod 509 is fixedly connected to the bottom of the inner circular plate 508;

[0050] The inner oblique ring plate 505 is sleeved on the filter mechanism 6 and is rotatably connected to the filter mechanism 6. The outer side of the inner oblique ring plate 505 is fixedly connected to the inner wall of the sampling tube 2. The bottom of the bottom connecting rod 509 is fixedly connected to the top of the filtering mechanism 6. A plurality of vent holes 506 are provided, and the plurality of vent holes 506 are evenly distributed on the outer side of the inner oblique ring plate 505. Three annular baffles 507 are provided, and the three annular baffles 507 are evenly distributed on the inner side of the inner oblique ring plate 505. When in use, the high-pressure air pump 3 is started to inhale the sampling tube 2, so that the sampling tube 2 is inhaled through the outer circular hole 7 opened on the outer side of the collecting tube 1. The medium and high temperature geothermal field gas at the bottom and surrounding areas of the equipment is fully collected. The collected medium and high temperature geothermal field gas enters the sampling tube 2, is filtered by the filtering mechanism 6 and cooled by the cooling mechanism 5, and is then pumped into the sampling container 4 for storage. After sampling the medium and high temperature geothermal field gas for a long time, the air pump can be turned off to stop sampling. At this time, the arc sliding door 10 is opened to discharge the dust and other particulate impurities filtered out of the sampling tube 2 through the filtering mechanism 6. After the dust and other particulate impurities filtered out of the sampling tube 2 are cleaned, the arc sliding door 10 can be closed to start the high pressure air pump 3 to continue sampling the medium and high temperature geothermal field gas. When sampling is performed and the high-pressure air pump 3 is started to inhale the sampling tube 2, the medium-high temperature geothermal field gas flows to the bottom of the inner oblique ring plate 505 after being filtered by the filtering mechanism 6 and contacts the inner oblique ring plate 505, then passes through the ventilation circular hole 506 and enters between the annular baffles 507. The inner oblique ring plate 505 that fully covers the inner area of ​​the sampling tube 2 is arranged at the bottom of the annular baffle 507 to block the rising medium-high temperature geothermal field gas. The medium-high temperature geothermal field gas that contacts the inner oblique ring plate 505 passes through the ventilation circular hole 506 in turn along the inclined surface of the inner oblique ring plate 505 and enters between the annular baffles 507. The multiple circular ventilation holes 506 facilitate the uniform dispersion of the medium and high temperature geothermal field gas between the annular baffles 507. The medium and high temperature geothermal field gas entering between the annular baffles 507 is fully contacted with the first annular tube 501 and the second annular tube 503 under the guidance of the annular baffles 507 for rapid cooling. The medium and high temperature geothermal field gas is rapidly cooled by arranging the first annular tube 501 and the second annular tube 503 filled with low temperature liquid nitrogen gas. The medium and high temperature geothermal field gas is divided into regions for guidance by arranging multiple annular baffles 507 at the bottom of the first annular tube 501 and the second annular tube 503.

[0051] For the second embodiment, please refer to Figure 1-Figure 8The present invention provides a gas sampling device suitable for medium and high temperature geothermal fields: the filtering mechanism 6 comprises a filtering plate 601, a dust filtering circular hole 602 is provided at the bottom of the filtering plate 601, a linkage rod 603 is passed through the top of the filtering plate 601 and is rotatably connected, a cleaning assembly 604 is sleeved and fixedly connected to the outer side of the linkage rod 603, a driving shaft of a motor 605 is fixedly connected to the top of the linkage rod 603, a square scraper 606 is fixedly connected to the outer side of the linkage rod 603, a rectangular long hole 607 is provided on one side of the square scraper 606, a retraction spring 608 is fixedly connected to the inner wall of the rectangular long hole 607, an I-shaped scraper 609 is fixedly connected to one end of the retraction spring 608, a corrugated connecting piece 610 is fixedly connected to the side of the I-shaped scraper 609 close to the retraction spring 608, an arc scraper 611 is fixedly connected to the side of the I-shaped scraper 609 close to the retraction spring 608, the outer side of the filtering plate 601 is fixedly connected to the inner wall of the sampling tube 2, the motor 6 The top of the bottom link 509 is fixedly connected to the bottom of the bottom link 509, the top of the linkage rod 603 passes through the inner oblique ring plate 505 and is rotatably connected to the inner oblique ring plate 505, a plurality of dust filter holes 602 are provided, and the plurality of dust filter holes 602 are evenly distributed at the bottom of the filter plate 601, two square scrapers 606 are provided, and the two square scrapers 606 are evenly distributed on the outside of the linkage rod 603, the top of the square scraper 606 is fixedly connected to the bottom of the cleaning component 604, and the I-shaped scraper 609 is slidably connected to the inner wall of the rectangular long hole 607, the outer side of the retraction spring 608 is fixedly connected to one side of the corrugated connecting piece 610, the side of the corrugated connecting piece 610 away from the I-shaped scraper 609 is fixedly connected to the inner wall of the rectangular long hole 607, four corrugated connecting pieces 610 are provided, and the four corrugated connecting pieces 610 are evenly distributed on one side of the I-shaped scraper 609, and four arc-shaped scrapers 611 are provided, and the four arc-shaped scrapers 611 are evenly distributed on one side of the I-shaped scraper 609;

[0052] The cleaning assembly 604 includes a first set of plates 6041, the top of the first set of plates 6041 is fixedly connected with an extension spring 6042, the top of the extension spring 6042 is fixedly connected with a second set of plates 6043, the top of the second set of plates 6043 is fixedly connected with a short connecting rod 6044, the top of the short connecting rod 6044 is fixedly connected with a third set of plates 6045, the top of the third set of plates 6045 is provided with a T-slot 6046, the inner wall of the T-slot 6046 is slidably connected with a T-sliding block 6047, one side of the T-sliding block 6047 is fixedly connected with a rectangular scraper 6048, both sides of the rectangular scraper 6048 are provided with rectangular side grooves 6049, the inner wall of the rectangular side groove 6049 is provided with a dust screening circular hole 60410, the inner wall of the rectangular side groove 6049 is fixedly connected with a The first set of plates 6041 is connected to the top of the square scraper 606, the first set of plates 6041 is sleeved on the linkage rod 603 and is fixedly connected to the linkage rod 603, the second set of plates 6043 is sleeved on the linkage rod 603 and is slidably connected to the linkage rod 603, the third set of plates 6045 is sleeved on the linkage rod 603 and is slidably connected to the linkage rod 603, two T-slots 6046 are provided, and the two T-slots 6046 are evenly distributed on the top of the third set of plates 6045, a plurality of dust screening circular holes 60410 are provided, and the plurality of dust screening circular holes 60410 are evenly distributed on the inner wall of the rectangular side groove 6049, a plurality of arc-shaped steel brushes 60411 are provided, and the plurality of arc-shaped steel brushes 60411 are evenly distributed on the rectangular side The inner wall of the groove 6049, when in use, the medium and high temperature geothermal field gas entering the sampling tube 2 is sucked through the dust filter circular hole 602 opened on the filter plate 601, and the dust and other particulate impurities in the gas are filtered at the bottom of the filter plate 601 through the dust filter circular hole 602, and the motor 605 is started to drive the linkage rod 603 to rotate, and the linkage rod 603 rotates to drive the cleaning component 604 and the square scraper 606 on the outside to rotate, and the cleaning component 604 cleans the bottom of the filter plate 601 when it rotates, and the arc-shaped sliding door 10 is opened when the medium and high temperature geothermal field gas is not sampled. At this time, the square scraper 606 scrapes and cleans the bottom of the inner wall of the sampling tube 2 when it rotates, and the square scraper 606 also pushes the cleaned dust and other particulate impurities to the outside of the arc-shaped through hole 8 when it rotates. When the linkage rod 603 rotates at a high speed, the I-shaped scraper 606 drives the I-shaped scraper 609 and the retraction spring 608 in the rectangular long hole 607 to rotate together. When the I-shaped scraper 609 rotates, it slides outward in the rectangular long hole 607 under the action of centrifugal force and pulls the retraction spring 608 to stretch. When the I-shaped scraper 609 slides, it scrapes and cleans the two sides of the square scraper 606. When the I-shaped scraper 609 slides, it drives the corrugated connecting piece 610 on one side to stretch together. The corrugated connecting piece 610 is arranged on both sides of the retraction spring 608 to cover the retraction spring 608 at all times. When the I-shaped slide plate slides, it also drives the arc scraper 611 close to the side of the corrugated connecting piece 610 to move together. When the arc scraper 611 moves, it is in contact with the outer side of the corrugated connecting piece 610.The movable arc scraper 611 scrapes and cleans the outer side of the corrugated connecting piece 610. When the linkage rod 603 rotates, it drives the first set of plates 6041 on the outside to rotate together. When the first set of plates 6041 rotates, it drives the top extension spring 6042 and the second set of plates 6043 to rotate together. When the second set of plates 6043 rotates, it drives the top third set of plates 6045 to rotate together through the short connecting rod 6044. When the third set of plates 6045 rotates, it drives the outer rectangular The scraper 6048 rotates together, and the rectangular scraper 6048 scrapes and cleans the bottom surface of the filter plate 601 when it rotates. The rectangular scraper 6048 is always in contact with the medium and high temperature geothermal field gas at the bottom of the filter plate 601 when it rotates. The rectangular scraper 6048 is set at the bottom of the filter plate 601. When it rotates, it drives the dust screening circular hole 60410 to keep in contact with the medium and high temperature geothermal field gas at the bottom of the filter plate 601. By setting a plurality of dust screening circular holes 60410, the medium and high temperature area at the bottom of the filter plate 601 is The dust and other particulate impurities in the geothermal field gas are screened and captured. When the rectangular scraper 6048 rotates, it drives the arc-shaped steel brush 60411 in the rectangular side groove 6049 to rotate together. When the arc-shaped steel brush 60411 rotates, it rubs and cleans the bottom surface of the filter plate 601 and the inside of the dust filter hole 602. After the rectangular scraper 6048 has been cleaning and collecting dust for a long time, the arc-shaped sliding door 10 is opened to pull the rectangular scraper 6048 downward so that the third set of plates 6045 can pass through the second set of plates 6043 to the bottom. The extension spring 6042 at the bottom is compressed. After the extension spring 6042 is compressed, the third set of plates 6045 and the rectangular scraper 6048 move downward as a whole. When the extension spring 6042 moves downward to a fully retracted state, the third set of plates 6045 can be pressed, and then the rectangular scraper 6048 is pushed to drive the T-shaped slider 6047 to move upward to disengage from the T-shaped slot 6046. The engagement of the T-shaped slider 6047 and the T-shaped slot 6046 facilitates the disassembly and cleaning of the rectangular scraper 6048.

[0053] When the present invention is operated and used, the high-pressure air pump 3 is started to suck air into the sampling tube 2, so that the sampling tube 2 can comprehensively collect the medium- and high-temperature geothermal field gases at the bottom of the equipment and the surrounding area through the outer circular hole 7 opened on the outer side of the collecting tube 1. The collected medium- and high-temperature geothermal field gases enter the sampling tube 2, are filtered by the filtering mechanism 6 and cooled by the cooling mechanism 5, and are then drawn into the sampling container 4 for storage. After sampling the medium- and high-temperature geothermal field gases for a long time, the air pump can be turned off to stop sampling. At this time, the arc-shaped sliding door 10 is opened to discharge the dust and other particulate impurities filtered out of the sampling tube 2 through the filtering mechanism 6. After the dust and other particulate impurities filtered out of the sampling tube 2 are cleaned up, the arc-shaped sliding door 10 can be closed and the high-pressure air pump 3 can be started to continue sampling the medium- and high-temperature geothermal field gases. When the high-pressure air pump 3 sucks air from the sampling tube 2, the medium-high temperature geothermal field gas flows to the bottom of the inner oblique ring plate 505 after being filtered by the filtering mechanism 6, and then passes through the ventilation circular hole 506 to enter between the annular baffles 507 after contacting the inner oblique ring plate 505. An inner oblique ring plate 505 that fully covers the internal area of ​​the sampling tube 2 is arranged at the bottom of the annular baffle 507 to block the rising medium-high temperature geothermal field gas. The medium-high temperature geothermal field gas that contacts the inner oblique ring plate 505 passes through the ventilation circular hole 506 in turn along the inclined surface of the inner oblique ring plate 505 and enters between the annular baffles 507. By setting a plurality of ventilation circular holes 506, the medium-high temperature geothermal field gas is evenly dispersed between each annular baffle 507. The medium-high temperature geothermal field gas that enters between the annular baffles 507 enters through the annular baffles 507. The guide of the shaped baffle plate 507 is fully in contact with the first annular tube 501 and the second annular tube 503 for rapid cooling. The medium and high temperature geothermal field gas is quickly cooled by setting the first annular tube 501 and the second annular tube 503 filled with low temperature liquid nitrogen gas. The medium and high temperature geothermal field gas is divided into regions and guided by setting a plurality of annular baffle plates 507 at the bottom of the first annular tube 501 and the second annular tube 503. The medium and high temperature geothermal field gas entering the sampling tube 2 is sucked through the dust filter circular hole 602 opened on the filter plate 601, and the dust and other particulate impurities in the gas are filtered at the bottom of the filter plate 601 through the dust filter circular hole 602. The motor 605 is started to drive the linkage rod 603 to rotate, and the linkage rod 603 rotates to drive the cleaning components 604 and the outer cleaning components 604. The square scraper 606 rotates, and the cleaning component 604 cleans the bottom of the filter plate 601 when it rotates. When the gas from the medium and high temperature geothermal field is not sampled, the arc-shaped sliding door 10 is opened. At this time, the square scraper 606 scrapes and cleans the bottom of the inner wall of the sampling tube 2 when it rotates. The square scraper 606 also pushes the cleaned dust and other granular impurities to be discharged to the outside of the arc-shaped through hole 8 when it rotates. When the square scraper 606 rotates at a high speed with the linkage rod 603, it drives the I-shaped scraper 609 and the retraction spring 608 in the rectangular long hole 607 to rotate together. When the I-shaped scraper 609 rotates, it slides outward in the rectangular long hole 607 under the action of centrifugal force and pulls the retraction spring 608 to stretch. When the I-shaped scraper 609 slides, it scrapes and cleans the two sides of the square scraper 606.When the I-shaped scraper 609 slides, it drives the corrugated connecting piece 610 on one side to extend together. The corrugated connecting piece 610 is arranged on both sides of the retraction spring 608 to cover the retraction spring 608 at all times. When the I-shaped slide plate slides, it also drives the arc scraper 611 close to the side of the corrugated connecting piece 610 to move together. When the arc scraper 611 moves, it always contacts the outer side of the corrugated connecting piece 610. The moving arc scraper 611 scrapes and cleans the outer side of the corrugated connecting piece 610. When the linkage rod 603 rotates, it drives the outer first set of plates 6041 to rotate together. The first set of plates 6041 rotates When the second set of plates 6043 rotates, the top extension spring 6042 is driven to rotate together with the second set of plates 6043. When the second set of plates 6043 rotates, the top third set of plates 6045 is driven to rotate together through the short connecting rod 6044. When the third set of plates 6045 rotates, the outer rectangular scraper 6048 is driven to rotate together through the T-shaped slider 6047. When the rectangular scraper 6048 rotates, the bottom surface of the filter plate 601 is scraped and cleaned. When the rectangular scraper 6048 rotates, it is always in contact with the medium and high temperature geothermal field gas at the bottom of the filter plate 601. The rectangular scraper 6048 is set at the bottom of the filter plate 601. When the filter plate 601 rotates, it drives The dust screening circular hole 60410 is always in contact with the medium-high temperature geothermal field gas at the bottom of the filter plate 601. By setting a plurality of dust screening circular holes 60410, dust and other particulate impurities in the medium-high temperature geothermal field gas in the bottom area of ​​the filter plate 601 are screened and captured. When the rectangular scraper 6048 rotates, it drives the arc-shaped steel brush 60411 in the rectangular side groove 6049 to rotate together. When the arc-shaped steel brush 60411 rotates, it rubs and cleans the bottom surface of the filter plate 601 and the inside of the dust screening circular hole 602. After the rectangular scraper 6048 has been cleaned and dusted for a long time, the arc-shaped sliding door 10 is opened and pulled down. The moving rectangular scraper 6048 allows the third set of plates 6045 to compress the bottom extension spring 6042 through the second set of plates 6043. After the extension spring 6042 is compressed, the third set of plates 6045 and the rectangular scraper 6048 move downward as a whole until the extension spring 6042 moves downward to a fully retracted state. The third set of plates 6045 can be pressed, and then the rectangular scraper 6048 is pushed to drive the T-shaped slider 6047 to move upward to disengage from the T-shaped slot 6046. The engagement of the T-shaped slider 6047 and the T-shaped slot 6046 facilitates the disassembly and cleaning of the rectangular scraper 6048.

[0054] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention are implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A gas sampling device suitable for medium and high temperature geothermal fields, characterized in that: include: A collecting pipe (1), the collecting pipe (1) is used to comprehensively collect medium- and high-temperature geothermal field gases at the bottom and surrounding areas, and a sampling tube (2) is provided at the top of the collecting pipe (1); A high-pressure gas pump (3), the high-pressure gas pump (3) being used to pump filtered and cooled medium- and high-temperature geothermal field gas into a container for storage, and a sampling container (4) is provided on the top of the high-pressure gas pump (3); A cooling mechanism (5), wherein the cooling mechanism (5) is in full contact with the medium-high temperature geothermal field gas to rapidly cool the gas; A filtering mechanism (6), the filtering mechanism (6) is used to filter dust and other particulate matter sucked into the medium- and high-temperature geothermal field gas; The top of the collecting tube (1) is connected to the bottom of the sampling tube (2), the top of the sampling tube (2) is connected to the air inlet of the high-pressure air pump (3), the air outlet of the high-pressure air pump (3) is connected to the bottom of the sampling container (4), the inner wall of the sampling tube (2) is fixedly connected to a cooling mechanism (5), and the bottom of the cooling mechanism (5) is fixedly connected to a filtering mechanism (6); Wherein, the cooling mechanism (5) comprises: A first annular tube (501), the first annular tube (501) is filled with liquid nitrogen gas so that the outer surface temperature of the tube is relatively low, and a short connecting tube (502) is arranged on the outer side of the first annular tube (501); A second annular tube (503), the diameter of the second annular tube (503) being larger than that of the first annular tube (501), and a long through tube (504) being arranged on the outer side of the second annular tube (503); The outer side of the first ring tube (501) is connected to one end of the short connecting tube (502), the end of the short connecting tube (502) away from the first ring tube (501) is connected to the second ring tube (503), and the outer side of the second ring tube (503) is connected to one end of the long through tube (504); One end of the long through tube (504) away from the second annular tube (503) passes through the sampling tube (2) and is fixedly connected to the sampling tube (2).

2. A gas sampling device suitable for medium and high temperature geothermal fields according to claim 1, characterized in that: The outer side of the collecting tube (1) is provided with an outer circular hole (7), the outer side of the sampling tube (2) is provided with an arc-shaped through hole (8), the inner wall of the arc-shaped through hole (8) is provided with an arc-shaped through groove (9), the inner wall of the arc-shaped through groove (9) is slidably connected to an arc-shaped sliding door (10), and the outer side of the sampling tube (2) is fixedly connected to a diagonal support rod (11).

3. A gas sampling device suitable for medium and high temperature geothermal fields according to claim 2, characterized in that: A plurality of the outer circular holes (7) are provided, and the plurality of the outer circular holes (7) are evenly distributed on the outside of the collecting tube (1); three diagonal support rods (11) are provided, and the three diagonal support rods (11) are evenly distributed on the outside of the sampling tube (2).

4. A gas sampling device suitable for medium and high temperature geothermal fields according to claim 1, characterized in that: The cooling mechanism (5) further comprises an inner oblique ring plate (505), a ventilation circular hole (506) is provided on the outer side of the inner oblique ring plate (505), an annular baffle (507) is fixedly connected to the inner side of the inner oblique ring plate (505), an inner circular plate (508) is fixedly connected to the inner side of the first ring tube (501), and a bottom connecting rod (509) is fixedly connected to the bottom of the inner circular plate (508).

5. A gas sampling device suitable for medium and high temperature geothermal fields according to claim 4, characterized in that: The inner oblique ring plate (505) is sleeved on the filter mechanism (6) and is rotatably connected to the filter mechanism (6); the outer side of the inner oblique ring plate (505) is fixedly connected to the inner wall of the sampling tube (2); the bottom of the bottom connecting rod (509) is fixedly connected to the top of the filter mechanism (6); a plurality of vent holes (506) are provided, and the plurality of vent holes (506) are evenly distributed on the outer side of the inner oblique ring plate (505); and three annular baffles (507) are provided, and the three annular baffles (507) are evenly distributed on the inner side of the inner oblique ring plate (505).

6. A gas sampling device suitable for medium and high temperature geothermal fields according to claim 1, characterized in that: The filtering mechanism (6) comprises a filtering plate (601), the bottom of the filtering plate (601) is provided with a dust filtering circular hole (602), the top of the filtering plate (601) is penetrated by a linkage rod (603) and is rotatably connected thereto, a cleaning assembly (604) is sleeved on the outer side of the linkage rod (603) and is fixedly connected thereto, the top of the linkage rod (603) is fixedly connected to a driving shaft of a motor (605), and the outer side of the linkage rod (603) is fixedly connected to a square scraper (606). A rectangular long hole (607) is opened on one side of the square scraper (606), a retraction spring (608) is fixedly connected to the inner wall of the rectangular long hole (607), one end of the retraction spring (608) is fixedly connected to an I-shaped scraper (609), a corrugated connecting piece (610) is fixedly connected to the side of the I-shaped scraper (609) close to the retraction spring (608), and an arc-shaped scraper (611) is fixedly connected to the side of the I-shaped scraper (609) close to the retraction spring (608).

7. A gas sampling device suitable for medium and high temperature geothermal fields according to claim 6, characterized in that: The outer side of the filter plate (601) is fixedly connected to the inner wall of the sampling tube (2), the top of the motor (605) is fixedly connected to the bottom of the bottom connecting rod (509), and the top of the linkage rod (603) passes through the inner oblique ring plate (505) and is rotatably connected to the inner oblique ring plate (505).

8. A gas sampling device suitable for medium and high temperature geothermal fields according to claim 6, characterized in that: The dust filtering circular holes (602) are provided in plurality, and the plurality of dust filtering circular holes (602) are evenly distributed at the bottom of the filter plate (601); the square scrapers (606) are provided in plurality, and the two square scrapers (606) are evenly distributed at the outside of the linkage rod (603); the top of the square scraper (606) is fixedly connected to the bottom of the cleaning assembly (604); the I-shaped scraper (609) is slidably connected to the inner wall of the rectangular long hole (607); the retraction spring (6 08) is fixedly connected to one side of the corrugated connecting piece (610), and the side of the corrugated connecting piece (610) away from the I-shaped scraper (609) is fixedly connected to the inner wall of the rectangular long hole (607), four corrugated connecting pieces (610) are provided, and the four corrugated connecting pieces (610) are evenly distributed on one side of the I-shaped scraper (609), and four arc-shaped scrapers (611) are provided, and the four arc-shaped scrapers (611) are evenly distributed on one side of the I-shaped scraper (609).

9. A gas sampling device suitable for medium and high temperature geothermal fields according to claim 6, characterized in that: The cleaning assembly (604) comprises a first set of plates (6041), the top of the first set of plates (6041) is fixedly connected to an extension spring (6042), the top of the extension spring (6042) is fixedly connected to a second set of plates (6043), the top of the second set of plates (6043) is fixedly connected to a short connecting rod (6044), the top of the short connecting rod (6044) is fixedly connected to a third set of plates (6045), and the top of the third set of plates (6045) is provided with a A T-shaped groove (6046) is provided, the inner wall of the T-shaped groove (6046) is slidably connected to a T-shaped slider (6047), one side of the T-shaped slider (6047) is fixedly connected to a rectangular scraper (6048), both sides of the rectangular scraper (6048) are provided with rectangular side grooves (6049), the inner wall of the rectangular side groove (6049) is provided with a dust screening circular hole (60410), and the inner wall of the rectangular side groove (6049) is fixedly connected to an arc-shaped steel brush (60411).

10. A gas sampling device suitable for medium and high temperature geothermal fields according to claim 9, characterized in that: The bottom of the first set of plates (6041) is fixedly connected to the top of the square scraper (606); the first set of plates (6041) is sleeved on the linkage rod (603) and is fixedly connected to the linkage rod (603); the second set of plates (6043) is sleeved on the linkage rod (603) and is slidably connected to the linkage rod (603); the third set of plates (6045) is sleeved on the linkage rod (603) and is slidably connected to the linkage rod (603); Two T-shaped slots (6046) are provided, and the two T-shaped slots (6046) are evenly distributed on the top of the third set plate (6045); a plurality of dust screening circular holes (60410) are provided, and the plurality of dust screening circular holes (60410) are evenly distributed on the inner wall of the rectangular side groove (6049); a plurality of arc-shaped steel brushes (60411) are provided, and the plurality of arc-shaped steel brushes (60411) are evenly distributed on the inner wall of the rectangular side groove (6049).

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