CN216477278U - Be used for geothermal well head water to dissolve gas collecting system - Google Patents
Be used for geothermal well head water to dissolve gas collecting system Download PDFInfo
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- CN216477278U CN216477278U CN202123250139.6U CN202123250139U CN216477278U CN 216477278 U CN216477278 U CN 216477278U CN 202123250139 U CN202123250139 U CN 202123250139U CN 216477278 U CN216477278 U CN 216477278U
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 60
- 238000000926 separation method Methods 0.000 claims abstract description 37
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 11
- 239000010959 steel Substances 0.000 claims abstract description 11
- 230000006835 compression Effects 0.000 claims abstract description 8
- 238000007906 compression Methods 0.000 claims abstract description 8
- 238000010248 power generation Methods 0.000 claims description 24
- 230000005540 biological transmission Effects 0.000 claims description 12
- 230000007246 mechanism Effects 0.000 claims description 11
- 239000007788 liquid Substances 0.000 claims description 8
- 238000003756 stirring Methods 0.000 claims description 5
- 239000010865 sewage Substances 0.000 claims description 4
- 230000005611 electricity Effects 0.000 abstract description 6
- 239000012535 impurity Substances 0.000 abstract description 2
- 238000009434 installation Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 97
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 8
- 239000003345 natural gas Substances 0.000 description 4
- 238000007599 discharging Methods 0.000 description 3
- 239000001307 helium Substances 0.000 description 3
- 229910052734 helium Inorganic materials 0.000 description 3
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000003673 groundwater Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000005871 repellent Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The utility model belongs to the technical field of geothermal resources, in particular to a water-soluble gas collecting system for a geothermal well mouth, which comprises a gas-water separation component and a compression collecting component, wherein the gas-water separation component comprises a separation tank and a buffer tank, the compression collecting component comprises a gas collecting device, a compressor and an assembly grid box, the gas collecting device comprises a gas collecting bag and a gas collecting cabinet, a mounting plate is arranged in the gas collecting cabinet, the gas collecting bag is fixed on the bottom of the mounting plate, the gas collecting bag is communicated with a gas collecting pipe and a gas outlet pipe, the gas outlet pipe is connected with the input end of the compressor, a gas storing steel bottle is arranged in the assembly grid box, the gas inlet of the gas storing steel bottle is communicated with the output end of the compressor through the gas storing pipe, the system can efficiently separate gas-water separation and gas storage of a single geothermal well, only needs to provide an external power supply for the compressor alone, the installation is convenient, and the auxiliary device can take out impurities in water, avoid blockking up equipment, can generate electricity moreover, reduced the circuit and erect the connection.
Description
Technical Field
The utility model belongs to the technical field of geothermal resources, specifically be a be used for geothermal wellhead water to dissolve gas collecting system.
Background
The water-soluble gas is a special type of natural gas resource, usually, the natural gas can be enriched in an underground water storage layer in a dissolving way, after underground water is produced to the surface, the natural gas dissolved in the water can be separated out from the water due to the reduction of the water-soluble gas saturation, and becomes available industrial fuel or raw material which is the same as that of the conventional natural gas, for example, a Weihe basin is a comprehensive resource basin integrating oil gas, water-soluble helium gas and geothermal heat, and the geothermal resource is abundant.
However, the development and utilization are single, the waste phenomenon of associated water-soluble gas (water-soluble helium) resources exists, the comprehensive utilization of geothermal resources can be realized by adopting a multi-well gas-water separation, collection and helium centralized extraction mode by depending on the existing geothermal well mouth as geothermal water associated resources, the purposes of comprehensive utilization and economic benefit improvement are achieved, and the geothermal well mouth water-soluble gas collection system mainly solves the problems of gas-water separation and storage of a single geothermal well.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
The utility model provides a be used for geothermal well mouth water to dissolve gas collecting system, possess convenient to use, avoid the advantage of wasting of resources, solved under the existing conditions, lack the problem that air water carries out better resource separation and reservoir device to single geothermal well.
(II) technical scheme
In order to achieve the above object, the utility model provides a following technical scheme: a water-soluble gas collecting system for a geothermal well head comprises a gas-water separation assembly and a compression collecting assembly;
the gas-water separation component comprises a separation tank and a buffer tank, the compression and collection component comprises a gas collection device, a compressor and an assembly grid box, the gas collection device comprises a gas collection bag and a gas collection cabinet, a mounting plate is arranged in the gas collection cabinet, the gas collection bags are all fixed on the bottom of the mounting plate, the gas collection bags are all communicated with a gas collection pipe and a gas outlet pipe, the gas outlet pipe is connected with the input end of the compressor, a gas storage steel cylinder is arranged in the assembly grid box, and the gas inlets of the gas storage steel cylinders are all communicated with the output end of the compressor through gas storage pipelines;
the bottom of knockout drum with the buffer tank all is equipped with the drainage motorised valve, be equipped with auxiliary device on the lateral wall of knockout drum, be equipped with inlet tube and drain pipe on the lateral wall of knockout drum, the top of knockout drum through the gas discharge pipe with the buffer tank is linked together, auxiliary device's bottom is fixed with the battery, one side of compressor is equipped with power connection through the power cord.
Preferably, the bottom of the gas collecting cabinet is provided with a movable wheel, the bottom of the gas collecting bag is provided with a gas collecting drainage pipeline, the gas collecting drainage pipeline is provided with a gas collecting electric valve, and the gas outlet pipe is positioned above the gas collecting pipe.
Through adopting above-mentioned scheme, the removal wheel of gas collection cabinet bottom can conveniently remove the position of gas collection cabinet, because the gas that the buffer tank transmitted when using is unstable, when preventing that well head gas every hour goes out the air output and can not satisfy compressor minimum treatment capacity, carry out the buffering regulation, can supply compressor 22 short time continuous operation, and still can remain steam in the gas collection bag, steam is after accumulating certain degree, can influence the storage capacity of gas collection bag, need emit the liquid in the gas collection bag through opening the gas collection motorised valve this moment.
Preferably, the separation tank is internally fixed with a separation plate, the side wall of the buffer tank is provided with a liquid level meter, the gas collecting pipe is connected to the top of the buffer tank, the buffer tank is internally fixed with a water removing plate, and the water removing plate is provided with a water removing hole which is small in top and big in bottom.
Through adopting above-mentioned scheme, contain gas groundwater after getting into the knockout drum, in order to avoid rivers to roll, the excessive flow of rivers can be avoided to the division board, and after gas gets into the buffer tank, gas pressure can be stabilized to the buffer tank, and can carry out main cooling to steam, the water level height in the buffer tank can be monitored to the level gauge, preferred messenger's water level keeps between 10% to 40%, then gas can get into the gas collection bag through the water trap in, owing to remove big end down on the water hole, so can make the hydrone striking then flow down on the inner wall in water removal hole, and further remove water.
Preferably, the auxiliary device comprises a support rod, a power generation device and a collection device, the power generation device is installed on the support rod, the collection device comprises an inner collection disc and an outer collection box, the inner collection disc is fixed on the inner wall of the separation tank, and the outer collection box is fixed on the outer wall of the separation tank.
Through adopting above-mentioned scheme, auxiliary device can utilize rivers electricity generation, further utilizes the resource, then stores the electric energy in the battery, is level gauge, gas collection motorised valve, electric telescopic handle and drainage motorised valve power supply through the battery, has avoided the secondary to erect the power cord, and collection device can collect the gravel, avoids blockking up equipment.
Preferably, the power generation device comprises a power generation motor, an umbrella-shaped part and a transmission gear, the power generation motor is fixed on the outer wall of the separation tank, the umbrella-shaped part is rotatably installed on the supporting rod through a shaft rod, the transmission gear is fixed on the bottom end of the shaft rod and an output shaft of the power generation motor, and the two transmission gears are meshed with each other.
By adopting the scheme, when water flow impacts the umbrella-shaped part, the umbrella-shaped part can be rotated by pushing the water stirring plate, then the shaft lever drives the transmission gear to rotate, the power generation motor is further rotated to generate power, then the power generation motor and the storage battery are connected through the lead, and the storage battery is internally provided with the charging module.
Preferably, the inner collecting disc is positioned below the umbrella-shaped element, a water stirring plate is fixed on the upper surface of the umbrella-shaped element, the outer collecting box is communicated with the inner collecting disc, and a sewage discharge mechanism is fixed on the side wall of the outer collecting box.
Through adopting above-mentioned scheme, the grit can fall to the interior dish of collecting through the umbrella-shaped spare on, then fall into the external collecting box under the promotion of rivers in, the blowdown mechanism can be with in the grit discharge external collecting box of accumulation.
Preferably, the dirt discharging mechanism comprises an electric telescopic rod and an extension plate, a dirt collecting port is formed in the extension plate, the electric telescopic rod is fixed to the outer wall of the separation tank through a connecting plate, the extension plate is fixed to the electric telescopic rod, and the dirt collecting port of the extension plate is located in the outer collecting box.
Through adopting above-mentioned scheme, when the grit of accumulation in the external collection box is discharged to needs, stretch out the dirty mouth of collection on the board and can temporarily store the grit, thereby electric telescopic handle can extend and drive and stretch out the board and remove, then make the grit taken out the external collection box, and then the grit is discharged.
(III) advantageous effects
Compared with the prior art, the utility model provides a be used for geothermal well head water to dissolve gas collecting system possesses following beneficial effect:
this system can the efficient to single geothermol power well gas-water separation and reservoir, only need for the compressor alone provide external power source can, conveniently erect the installation, auxiliary device can take out the impurity of aquatic moreover, avoids blockking up equipment, can generate electricity moreover, has reduced the circuit and has erect the connection.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic sectional view of the separation tank of the present invention;
FIG. 3 is a schematic structural view of the power generation device and the collection device of the present invention;
FIG. 4 is a schematic top view of the umbrella of the present invention;
FIG. 5 is a schematic side view of the drainage mechanism of the present invention;
fig. 6 is a schematic top view of the drainage mechanism of the present invention;
FIG. 7 is a schematic view of a partial cross-sectional structure of the buffer tank of the present invention;
in the figure:
1. a gas-water separation component; 11. a separation tank; 111. a water inlet pipe; 112. a drain pipe; 113. a separator plate; 12. a buffer tank; 121. a liquid level meter; 122. a dewatering plate; 13. a storage battery;
2. compressing the collection assembly; 21. a gas collection device; 211. an air collecting bag; 212. a gas collection cabinet; 213. A gas collecting pipe; 214. an air outlet pipe; 215. a gas collection electric valve; 22. a compressor; 23. assembling a grid box; 231. a gas storage steel cylinder;
3. an auxiliary device; 31. a support bar; 32. a power generation device; 321. a generator motor; 322. an umbrella-shaped member; 323. a transmission gear; 324. a water-repellent plate; 33. a collection device; 331. an inner collecting tray; 332. an outer collection box; 333. a sewage draining mechanism; 334. an electric telescopic rod; 335. the plate is extended.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example one
A water-soluble gas collecting system for a geothermal well head comprises a gas-water separation assembly 1 and a compression collecting assembly 2;
the gas-water separation component 1 comprises a separation tank 11 and a buffer tank 12, the compression collection component 2 comprises a gas collection device 21, a compressor 22 and an assembly grid box 23, the gas collection device 21 comprises a gas collection bag 211 and a gas collection cabinet 212, a mounting plate is arranged in the gas collection cabinet 212, the gas collection bag 211 is fixed on the bottom of the mounting plate, the gas collection bag 211 is communicated with a gas collection pipe 213 and a gas outlet pipe 214, the gas outlet pipe 214 is connected with the input end of the compressor 22, a gas storage steel cylinder 231 is arranged in the assembly grid box 23, and the gas inlets of the gas storage steel cylinders 231 are communicated with the output end of the compressor 22 through gas storage pipes;
the bottom of knockout drum 11 and buffer tank 12 all is equipped with the drainage motorised valve, is equipped with auxiliary device 3 on the lateral wall of knockout drum 11, is equipped with inlet tube 111 and drain pipe 112 on the lateral wall of knockout drum 11, and the top of knockout drum 11 is linked together through gas discharge pipe and buffer tank 12, and auxiliary device 3's bottom is fixed with battery 13, and one side of compressor 22 is equipped with power connection through the power cord.
The bottom of the gas collecting cabinet 212 is provided with a movable wheel, the bottom of the gas collecting bag 211 is provided with a gas collecting drain pipe 112, the gas collecting drain pipe 112 is provided with a gas collecting electric valve 215, and the gas outlet pipe 214 is positioned above the gas collecting pipe 213.
The separator tank 11 is internally fixed with a partition board 113, the side wall of the buffer tank 12 is provided with a liquid level meter 121, the gas collecting pipe 213 is connected to the top of the buffer tank 12, the buffer tank 12 is internally fixed with a dewatering plate 122, and the dewatering plate 122 is provided with a dewatering hole which is small in size.
Referring to fig. 1-7, firstly, the power connector is connected with an external power source, then geothermal water from a geothermal well head enters the separation tank 11 in a form of water-gas, gas-liquid separation is performed by gas upflow, after the gas-containing groundwater enters the separation tank 11, in order to avoid water flow from rolling, the isolation plate 113 can avoid excessive flow of water flow, after the gas enters the buffer tank 12, the buffer tank 12 can stabilize gas pressure and can mainly cool water vapor, the level gauge 121 can monitor the water level in the buffer tank 12, preferably, the water level is kept between 10% and 40%, then the gas can enter the gas collection bag 211 through the water removal plate 122, because the water removal hole is small at the top and big at the bottom, water molecules can impact on the inner wall of the water removal hole and then flow down to further remove water, the moving wheel at the bottom of the gas collection cabinet 212 can conveniently move the position of the gas collection cabinet 212, because the gas that buffer tank 12 transmitted is unstable when using, when preventing that the gas output of well head gas per hour can not satisfy compressor 22 minimum handling capacity, carry out the cushioning regulation, can supply compressor 22 short time continuous operation, and still can remain steam in the gas collection bag 211, steam is after accumulating certain degree, can influence the storage capacity of gas collection bag 211, need emit the liquid in the gas collection bag 211 through opening gas collection motorised valve 215 this moment, compressor 22 can be with gas injection gas storage steel bottle 231 in, gas storage steel bottle 231 is full of after gaseously transports to concentrated purification place together with equipment check case 23.
Example two
The function of self-generating electricity and removing grit in water is added on the basis of the first embodiment.
The auxiliary device 3 includes a support rod 31, a power generation device 32 and a collection device 33, the power generation device 32 is mounted on the support rod 31, the collection device 33 includes an inner collection tray 331 and an outer collection tank 332, the inner collection tray 331 is fixed on the inner wall of the separation tank 11, and the outer collection tank 332 is fixed on the outer wall of the separation tank 11.
The power generation device 32 comprises a power generation motor 321, an umbrella-shaped member 322 and a transmission gear 323, wherein the power generation motor 321 is fixed on the outer wall of the separation tank 11, the umbrella-shaped member 322 is rotatably installed on the support rod 31 through a shaft rod, the transmission gear 323 is fixed on the bottom end of the shaft rod and the output shaft of the power generation motor 321, and the two transmission gears 323 are meshed.
The inner collecting tray 331 is positioned below the umbrella-shaped member 322, the water-stirring plate 324 is fixed on the upper surface of the umbrella-shaped member 322, the outer collecting tank 332 is communicated with the inner collecting tray 331, and the side wall of the outer collecting tank 332 is fixed with a sewage discharging mechanism 333.
The dirt discharging mechanism 333 comprises an electric telescopic rod 334 and an extension plate 335, the extension plate 335 is provided with a dirt collecting port, the electric telescopic rod 334 is fixed on the outer wall of the separation tank 11 through a connecting plate, the extension plate 335 is fixed on the electric telescopic rod 334, and the dirt collecting port of the extension plate 335 is positioned in the outer collecting box 332.
Referring to fig. 1-7, the auxiliary device 3 can generate electricity by using water flow, further utilize resources, then store electric energy in the storage battery 13, supply power to the liquid level meter 121, the gas collection electric valve 215, the electric telescopic rod 334 and the water drainage electric valve through the storage battery 13, avoid secondary erection of a power line, the collection device 33 can collect gravel to avoid blocking equipment, when water flow impacts the umbrella-shaped member 322, the umbrella-shaped member 322 can be rotated by pushing the water stirring plate 324, then the shaft rod drives the transmission gear 323 to rotate, so that the power generation motor 321 can rotate to generate electricity, then the power generation motor 321 needs to be connected with the storage battery 13 through a lead, a charging module is arranged in the storage battery 13, gravel can fall onto the inner collection disc 331 through the umbrella-shaped member 322, then fall into the outer collection box 332 under the pushing of water flow, the dirt discharge mechanism 333 can discharge accumulated gravel out of the outer collection box 332, when the grit that accumulates in outer collecting box 332 needs to be discharged, stretch out the dirty mouth of collection on the board 335 and can temporarily store the grit, thereby electric telescopic handle 334 can extend and drive and stretch out board 335 and remove, then make the grit be taken out outer collecting box 332, and then the grit is discharged.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a be used for geothermal well head water to dissolve gas collecting system which characterized in that: comprises a gas-water separation component (1) and a compression collection component (2);
the gas-water separation component (1) comprises a separation tank (11) and a buffer tank (12), the compression collection component (2) comprises a gas collection device (21), a compressor (22) and an assembly grid box (23), the gas collection device (21) comprises a gas collection bag (211) and a gas collection cabinet (212), a mounting plate is arranged in the gas collection cabinet (212), the gas collection bag (211) is fixed on the bottom of the mounting plate, the gas collection bag (211) is communicated with a gas collection pipe (213) and a gas outlet pipe (214), the gas outlet pipe (214) is connected with the input end of the compressor (22), a gas storage steel cylinder (231) is arranged in the assembly grid box (23), and the gas inlet of the gas storage steel cylinder (231) is communicated with the output end of the compressor (22) through a gas storage pipeline;
the utility model discloses a compressor, including knockout drum (11), buffer tank (12), the top of knockout drum (11) is fixed with battery (13), the bottom of compressor (22) is equipped with the drainage motorised valve, be equipped with auxiliary device (3) on the lateral wall of knockout drum (11), be equipped with inlet tube (111) and drain pipe (112) on the lateral wall of knockout drum (11), the top of knockout drum (11) pass through the gas discharge pipe with buffer tank (12) are linked together, the bottom of auxiliary device (3) is fixed with battery (13), one side of compressor (22) is equipped with power connection through the power cord.
2. The system for geothermal wellhead water-soluble gas collection according to claim 1, wherein: the bottom of the gas collecting cabinet (212) is provided with a moving wheel, the bottom of the gas collecting bag (211) is provided with a gas collecting and draining pipe (112) channel, the gas collecting and draining pipe (112) channel is provided with a gas collecting electric valve (215), and the gas outlet pipe (214) is positioned above the gas collecting pipe (213).
3. The system for geothermal wellhead water-soluble gas collection according to claim 1, wherein: the separator tank is characterized in that a separation plate (113) is fixed in the separator tank (11), a liquid level meter (121) is arranged on the side wall of the buffer tank (12), the gas collecting pipe (213) is connected to the top of the buffer tank (12), a water removing plate (122) is fixed in the buffer tank (12), and a water removing hole which is big in the upper part and small in the lower part is formed in the water removing plate (122).
4. The system for geothermal wellhead water-soluble gas collection according to claim 1, wherein: the auxiliary device (3) comprises a supporting rod (31), a power generation device (32) and a collection device (33), the power generation device (32) is installed on the supporting rod (31), the collection device (33) comprises an inner collection disc (331) and an outer collection box (332), the inner collection disc (331) is fixed on the inner wall of the separation tank (11), and the outer collection box (332) is fixed on the outer wall of the separation tank (11).
5. The system for geothermal wellhead water-soluble gas collection according to claim 4, wherein: the power generation device (32) comprises a power generation motor (321), an umbrella-shaped part (322) and a transmission gear (323), the power generation motor (321) is fixed on the outer wall of the separation tank (11), the umbrella-shaped part (322) is rotatably installed on the supporting rod (31) through a shaft rod, the transmission gear (323) is fixed at the bottom end of the shaft rod and on an output shaft of the power generation motor (321), and the two transmission gears (323) are meshed with each other.
6. The system for geothermal wellhead water-soluble gas collection according to claim 5, wherein: the inner collecting disc (331) is located below the umbrella-shaped part (322), a water stirring plate (324) is fixed on the upper surface of the umbrella-shaped part (322), the outer collecting box (332) is communicated with the inner collecting disc (331), and a sewage discharge mechanism (333) is fixed on the side wall of the outer collecting box (332).
7. The system for geothermal wellhead water-soluble gas collection according to claim 6, wherein: blowdown mechanism (333) include electric telescopic handle (334) and stretch out board (335), it has seted up collection dirty mouthful to stretch out on board (335), electric telescopic handle (334) all are fixed through the connecting plate on the outer wall of knockout drum (11), it fixes to stretch out board (335) on electric telescopic handle (334), the collection dirty mouthful that stretches out board (335) is located in outer collecting box (332).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123250139.6U CN216477278U (en) | 2021-12-22 | 2021-12-22 | Be used for geothermal well head water to dissolve gas collecting system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123250139.6U CN216477278U (en) | 2021-12-22 | 2021-12-22 | Be used for geothermal well head water to dissolve gas collecting system |
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| CN216477278U true CN216477278U (en) | 2022-05-10 |
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| CN202123250139.6U Expired - Fee Related CN216477278U (en) | 2021-12-22 | 2021-12-22 | Be used for geothermal well head water to dissolve gas collecting system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115111785A (en) * | 2022-05-18 | 2022-09-27 | 郑州大学综合设计研究院有限公司 | Energy-saving ventilating passive residential structure |
-
2021
- 2021-12-22 CN CN202123250139.6U patent/CN216477278U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115111785A (en) * | 2022-05-18 | 2022-09-27 | 郑州大学综合设计研究院有限公司 | Energy-saving ventilating passive residential structure |
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