CN220082834U - Integrated pipe network of ventilation monitoring of earthing structure - Google Patents
Integrated pipe network of ventilation monitoring of earthing structure Download PDFInfo
- Publication number
- CN220082834U CN220082834U CN202320958202.1U CN202320958202U CN220082834U CN 220082834 U CN220082834 U CN 220082834U CN 202320958202 U CN202320958202 U CN 202320958202U CN 220082834 U CN220082834 U CN 220082834U
- Authority
- CN
- China
- Prior art keywords
- ventilation
- layer
- pipe
- humidity
- soil
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000009423 ventilation Methods 0.000 title claims abstract description 138
- 238000012544 monitoring process Methods 0.000 title claims abstract description 25
- 239000002689 soil Substances 0.000 claims abstract description 39
- 238000013461 design Methods 0.000 claims abstract description 12
- 238000007664 blowing Methods 0.000 claims description 6
- 239000000919 ceramic Substances 0.000 abstract description 30
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 25
- 239000002245 particle Substances 0.000 abstract description 21
- 238000010521 absorption reaction Methods 0.000 abstract description 9
- 230000008595 infiltration Effects 0.000 abstract description 3
- 238000001764 infiltration Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 2
- 238000001514 detection method Methods 0.000 description 12
- 238000012423 maintenance Methods 0.000 description 3
- 238000004378 air conditioning Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000007605 air drying Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052729 chemical element Inorganic materials 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Ventilation (AREA)
Abstract
The utility model discloses a ventilation monitoring integrated pipe network of a soil covering structure, wherein a soil covering layer is arranged above a ventilation layer, a ceramic particle plate with good water absorption is arranged in the infiltration process in the soil covering layer, a plurality of holes are formed in the ceramic particle plate, the holes are connected with ventilation holes of a ventilation pipe, when external air flows enter the ventilation pipe and then enter the holes through the ventilation holes, moisture in the ceramic particle plate is taken away, the ceramic particle plate is air-dried, a plurality of layers are arranged between the soil covering layer and the ventilation layer, the ceramic particle plate paved by the ventilation layer can correspondingly absorb the water infiltration of a certain volume of the upper soil covering layer, the layered design ensures that the water absorption capacity of the ceramic particle plate cannot exceed the saturation capacity, and ventilation is facilitated to take away the moisture, so that the moisture content in the soil covering layer can be reduced, and the stability of the soil covering structure is ensured.
Description
Technical Field
The utility model belongs to the field of earthing tanks, and particularly relates to a ventilation monitoring integrated pipe network of an earthing structure.
Background
The soil-covered oil tank is relatively constant in temperature and humidity, small in oil loss and high in environment fusion degree, more is selected in oil depot construction, the soil is exposed in outdoor environment, the influence of weather conditions on the soil is large, the soil is difficult to cover the soil completely due to large size, the water content of the soil covered around the soil-covered tank is increased due to evaporation of rainfall and ground vapor, the water content in the soil and chemical elements in the soil are easy to corrode the tank body of the soil-covered tank and pipelines connected with the tank body along with the time development, the tank body of the soil-covered tank and pipelines are easy to damage, production safety hazards are easy to cause, particularly in areas with large annual rainfall, how waterproof drainage also becomes a difficult point of the soil-covered structure is designed, the stability of the storage tank soil-covered structure is ensured, the problems of collapse, sedimentation and the like are avoided due to the fact that the water content of the soil-covered structure is too large are needed to be solved, and the water content of the soil-covered structure is kept low, so that the prior art needs to be improved and improved further.
Disclosure of Invention
The present utility model provides an integrated ventilation monitoring network of earthed structures to at least address or alleviate one or more of the technical problems of the prior art, or to at least provide a beneficial alternative.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
the utility model provides an integrated pipe network of ventilation monitoring of earthing structure, its characterized in that, including covering soil layer, ventilation layer upper portion is located on the ventilation layer, the ventilation layer includes a plurality of ventilation pipes and a plurality of haydite board, haydite board absorbs the moisture in the upper strata earthing layer, the haydite board is equipped with the hole, ventilation pipe one end is sealed, and one end opening and offered the ventilation hole, the ventilation hole with the hole correspondence intercommunication of haydite board, wind entering ventilation pipe gets into the hole of haydite board through the ventilation hole and takes away moisture to reduce the moisture content of covering the soil layer.
The ventilation monitoring integrated pipe network of the earthing structure is applied to an earthing structure of an earthing tank, the earthing layer is arranged above the ventilation layer by being arranged on the earthing structure of the earthing tank, a ceramic particle plate with good water absorption is entered in the infiltration process in the earthing layer by being provided with a plurality of holes, the holes are connected with ventilation holes of the ventilation pipe, and when external air flows enter the ventilation pipe and then enter the holes through the ventilation holes, moisture in the ceramic particle plate is taken away, so that the water content in the earthing layer is reduced, and the stability of the earthing structure is ensured.
In a preferred embodiment, the soil cover layer and the ventilation layer are arranged at intervals in a plurality of layers.
According to the ventilation monitoring integrated pipe network of the earthing structure, a plurality of layers are arranged between the earthing layer and the ventilation layer, so that the haydite plates paved on the ventilation layer can correspondingly absorb water seepage of a certain volume of earthing on the upper layer, the water absorption capacity of the haydite plates cannot exceed the saturation capacity due to layered design, ventilation is facilitated, water vapor is taken away, and the structure design is reasonable.
In a preferred implementation, the axis of the ventilation tube is perpendicular to the axis of the hole.
According to the ventilation monitoring integrated pipe network of the earthing structure, the axis of the ventilation pipe is perpendicular to the axis of the holes, the three sides of the earthing structure are provided with the wind inlet, external natural wind can flow along the holes, the ventilation holes and the ventilation pipes, and can flow from the ventilation pipes, the ventilation holes and the holes, so that the ventilation effect is improved.
In a preferred implementation, the duct section of the ventilation duct tapers from the open end towards the closed end.
According to the ventilation monitoring integrated pipe network of the earthing structure, the section of the pipe with the opening end of the ventilation pipe gradually narrowed towards the closed end is gradually narrowed, airflow can be accelerated when flowing through the gradually narrowed channel according to aerodynamics, and the flow speed of the airflow can be increased by the design of the ventilation pipe, so that ventilation is facilitated.
In a preferred implementation manner, the ventilation pipe is a rectangular pipe, and the height of the ceramsite plate is matched with the height of the ventilation pipe.
According to the ventilation monitoring integrated pipe network of the earthing structure, which is disclosed by the embodiment of the utility model, the height of the ceramsite plates is matched with the height of the ventilation pipes, so that paving connection is facilitated, and a smooth ventilation layer is formed.
In a preferred implementation, a humidity detection element is arranged in the ventilation pipe, and the humidity detection element is used for monitoring the humidity of the soil covering layer.
According to the ventilation monitoring integrated pipe network of the earthing structure, provided by the embodiment of the utility model, the plurality of humidity detection pieces are arranged in the ventilation pipe, and the humidity detection pieces monitor the humidity of the upper earthing layer, so that workers can know the humidity condition of the earthing layer of the earthing structure conveniently, and follow-up maintenance work is facilitated.
In a preferred implementation, the humidity monitoring element transmits the monitored humidity signal to a controller that controls a blower to blow air flow to the ventilation tube.
In a preferred implementation manner, the blowing part is a hot air blower, the humidity detecting part is a humidity sensor, and the controller controls the hot air blower to work when the humidity of the soil covering layer detected by the humidity sensor exceeds a design value.
The structure has the following beneficial effects:
1. the soil-covered layer is arranged above the ventilation layer, the water seepage in the soil-covered layer is carried out and enters the ceramic particle board with good water absorbability, the ceramic particle board is provided with a plurality of holes, the holes are connected with ventilation holes, when external air flows enter the ventilation pipes and then enter the holes through the ventilation holes, moisture in the ceramic particle board is taken away, the ceramic particle board is air-dried, a plurality of layers are arranged between the soil-covered layer and the ventilation layer, the ceramic particle board paved by the ventilation layer can correspondingly absorb water seepage of the upper layer and a certain volume of the soil-covered layer, the water absorption capacity of the ceramic particle board can not exceed the saturation capacity through layered design, and the ventilation is facilitated to take away the water vapor, so that the water content in the soil-covered layer can be reduced, and the stability of the soil-covered structure is ensured.
2. Set up a plurality of humidity detection spare in the ventilation pipe, humidity detection spare monitoring top earthing layer's humidity, both make things convenient for the staff to know earthing structure's soil layer humidity condition in real time, humidity detection spare gives the controller with the humidity signal transmission who monitors simultaneously, and the controller control is bloied the air current to the ventilation pipe to the piece of blowing to can realize the work of initiative intelligent earthing layer humidity reduction, be favorable to intelligent regulation earthing layer water content.
3. Haydite board height and ventilation pipe high looks adaptation are convenient for mat formation and are connected, form smooth ventilation layer to can realize the subsidence monitoring of earthing structure through observing the distance between the adjacent ventilation layer.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model and do not constitute a limitation on the utility model. In the drawings:
FIG. 1 is a schematic diagram of an exemplary embodiment of the present utility model;
FIG. 2 is an enlarged schematic view of the structure of the portion A of FIG. 1 according to an exemplary embodiment of the present utility model;
FIG. 3 is a schematic structural view of an exemplary embodiment of the vent and ceramsite plate of the present utility model;
FIG. 4 is a schematic structural diagram of an exemplary embodiment of a ventilation layer according to the present utility model;
description of the reference numerals:
1. covering a soil layer;
2. an ventilation layer; 20. a ventilation pipe; 200. a vent hole; 21. ceramsite plates; 210. a hole;
3. a humidity detecting member; 4. and a blowing member.
Detailed Description
In order to more clearly illustrate the general inventive concept, reference will be made in the following detailed description, by way of example, to the accompanying drawings.
It should be noted that in the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, however, the present utility model may be practiced in other ways than as described herein, and therefore the scope of the present utility model is not limited by the specific embodiments disclosed below.
In the description of the present utility model, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model. In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium.
In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. However, it is noted that a direct connection indicates that two bodies connected together do not form a connection relationship by an excessive structure, but are connected to form a whole by a connection structure. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
The description as it relates to "first", "second", etc. in the present utility model is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature.
The present utility model will be described below with reference to the drawings.
The scheme adopted is as follows:
as shown in fig. 1-4, the present utility model provides a ventilation monitoring integrated pipe network of an earth covering structure, comprising:
the novel ceramic composite material comprises a soil covering layer 1 and a ventilation layer 2, wherein the soil covering layer 1 is arranged on the upper portion of the ventilation layer 2, the ventilation layer 2 comprises a plurality of ventilation pipes 20 and a plurality of ceramic plates 21, the ceramic plates 21 (ceramic precast slabs/walls) are mainly made of cement and ceramic particles with the size of about 5mm, the cement and the ceramic particles are mixed, the density, the chemical stability and the thermal stability among the ceramic particles are improved through high-temperature firing at 1000 ℃, the novel ceramic composite material has the characteristics of compression resistance, light weight, good water absorption and the like, the water absorption of the ceramic plates 21 is utilized to absorb the water in the upper soil covering layer 1, the ceramic plates 21 are provided with holes 210, one ends of the ventilation pipes 20 are closed, the other ends of the ventilation pipes are open and are provided with ventilation holes 200, the ventilation holes 200 are correspondingly communicated with the holes 210 of the ceramic plates 21, and the ventilation pipes 20 enter the ventilation pipes through the ventilation holes 200 to bring away the water content of the ceramic plates 21 so as to reduce the water content of the soil covering layer 1.
As a preferred embodiment of the present utility model, the soil covering layer 1 and the ventilation layer 2 are arranged at intervals, as shown in fig. 1, three layers are arranged at intervals between the soil covering layer 1 and the ventilation layer 2, and the ceramsite plates 21 paved on each ventilation layer 2 can absorb the moisture of the soil covering layer 1 with a certain volume of the upper layer correspondingly, and the main purpose of the layered design is to ensure that the water absorption capacity of the ceramsite plates 21 is not more than the saturation capacity of moisture absorption, thereby facilitating the air drying of the wet ceramsite plates 21.
As a preferred embodiment of the present utility model, as shown in fig. 1, the axis of the ventilation pipe 20 is perpendicular to the axis of the hole 210, and wind inlets are formed on three sides of the earth covering structure, so that external natural wind can flow along the hole 210-ventilation hole 200-ventilation pipe 20 or flow from the ventilation pipe 20-ventilation hole 200-hole 210, thereby improving ventilation flow effect.
As a preferred embodiment of the present utility model, the duct section of the ventilation duct 20 is gradually narrowed from the open end toward the closed end, and the air flow is accelerated by the air flow passing through the gradually narrowed passage according to the aerodynamics, so that the above design of the ventilation duct 20 can increase the flow velocity of the air flow, which is advantageous for ventilation, and the open end of the ventilation duct 20 can be made into a bell mouth, thereby improving the ornamental value of the earth covering structure.
As a preferred embodiment of the present utility model, as shown in fig. 3, the ventilation pipe 20 is a rectangular pipe, the height of the ceramic particle plate 21 is matched with the height of the ventilation pipe 20, the ceramic particle plate 21 and the ventilation pipe 20 are matched to facilitate paving connection, a flat ventilation layer 2 is formed, specifically, the ventilation pipe 20 is placed uniformly and distributed on the ventilation layer 2, three ventilation pipes 20 are schematically drawn in the figure, the length of the ventilation pipe 20 is matched with the length of the earthing structure, a plurality of ventilation holes 200 are formed on two sides of the rectangular pipe according to design requirements, a plurality of ventilation holes 200 are formed on two sides of the rectangular pipe, the ceramic particle plate 21 is placed on two sides of the rectangular pipe to enable the holes 210 to correspond to the ventilation pipe 20, in order to reduce connection gaps, the holes 210 and the ventilation pipe 20 can be connected by pipe joints, the ceramic particle plate 21 can be produced by prefabricated factories, the ventilation pipe 20 can be cast iron or concrete reinforced materials, and other materials besides the ventilation pipes can be used.
As shown in fig. 4, the opening ends of the ceramsite plate 21 and the ventilation pipes 20 of the utility model can be observed outside the earthing structure, the distance between vertically adjacent ventilation pipes 20 can be measured periodically, if the distance changes, the soil layer sedimentation is indicated, thereby being convenient for timely maintenance work of the earthing structure and the embedded tank body.
In order to increase ventilation efficiency of ventilation layer 2, be equipped with humidity detection spare 3 in ventilation pipe 20 of fig. 2, humidity detection spare 3 is used for monitoring the humidity of covering soil layer 1, and humidity detection spare 3 monitoring top earthing layer 1's humidity, make things convenient for the staff to know the soil layer humidity condition of earthing structure, the follow-up maintenance work of being convenient for, humidity detection spare gives the controller with the humidity signal who monitors, and controller control bloies the air current to ventilation pipe 20 by blowing spare 4. Specifically, the air blowing member 4 is an air heater, the humidity detecting member 3 is a humidity sensor, a detecting probe of the humidity sensor is located in the soil covering layer 1, the humidity sensor and the controller can be in a wireless connection mode, when the humidity of the soil covering layer 1 detected by the humidity sensor exceeds a design value, the controller (not shown in the drawing and arranged in a working room) controls the air heater to work until the humidity detection reaches a normal range, the air heater is only shown in the drawing, each ventilation pipe can be configured with one air heater according to the design requirement, wherein the humidity sensor, the controller and the control principle and the wire connection relation of the air heaters are the prior art means, the air conditioning system is usually used in hospitals (according to humidity and temperature, the air conditioning system is adjusted to meet the requirements of patient recovery, and a public area is kept in a more comfortable environment, so that the patient is always at a proper temperature, and meanwhile, the temperature and humidity sensor is matched), the intelligent greenhouse is built, (a technician can directly control and command the temperature in the greenhouse through a computer or a mobile phone, if the temperature in the greenhouse is found to exceed 35 degrees, the whole facility can be directly opened through the mobile phone), and the utility model is not in the repeated situations.
The utility model can be realized by adopting or referring to the prior art at the places which are not described in the utility model.
The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any person skilled in the art will readily recognize that various modifications and substitutions are possible within the scope of the present utility model. Therefore, the protection scope of the utility model is subject to the protection scope of the claims.
Claims (8)
1. The utility model provides an integrated pipe network of ventilation monitoring of earthing structure, its characterized in that, including covering soil layer, ventilation layer upper portion is located on the ventilation layer, the ventilation layer includes a plurality of ventilation pipes and a plurality of haydite board, haydite board absorbs the moisture in the upper strata earthing layer, the haydite board is equipped with the hole, ventilation pipe one end is sealed, and one end opening and offered the ventilation hole, the ventilation hole with the hole correspondence intercommunication of haydite board, wind entering ventilation pipe gets into the hole of haydite board through the ventilation hole and takes away moisture to reduce the moisture content of covering the soil layer.
2. The integrated network of ventilation monitoring for an earthed structure of claim 1 wherein the layers of earth are spaced apart from the ventilation layer.
3. The integrated network of claim 1, wherein the axis of the ventilation pipe is perpendicular to the axis of the hole.
4. A ventilation monitoring integrated network of earthed structures according to claim 1 wherein the duct section of the ventilation duct tapers from an open end to a closed end.
5. The integrated pipe network for ventilation monitoring of a covered soil structure according to claim 1, wherein the ventilation pipe is a rectangular pipe, and the height of the ceramsite plate is adapted to the height of the ventilation pipe.
6. The integrated pipe network for ventilation monitoring of a covered soil structure according to claim 1, wherein a humidity detecting member is disposed in the ventilation pipe, and the humidity detecting member is used for monitoring humidity of the covered soil layer.
7. The integrated network of claim 6, wherein the humidity sensing member transmits the monitored humidity signal to a controller, and the controller controls the blower to blow air to the ventilation tube.
8. The integrated pipe network of claim 7, wherein the blowing member is a hot air blower, the humidity detecting member is a humidity sensor, and the controller controls the hot air blower to operate when the humidity sensor detects that the humidity of the soil covering layer exceeds a design value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320958202.1U CN220082834U (en) | 2023-04-20 | 2023-04-20 | Integrated pipe network of ventilation monitoring of earthing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320958202.1U CN220082834U (en) | 2023-04-20 | 2023-04-20 | Integrated pipe network of ventilation monitoring of earthing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220082834U true CN220082834U (en) | 2023-11-24 |
Family
ID=88816704
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320958202.1U Active CN220082834U (en) | 2023-04-20 | 2023-04-20 | Integrated pipe network of ventilation monitoring of earthing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220082834U (en) |
-
2023
- 2023-04-20 CN CN202320958202.1U patent/CN220082834U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20100025008A1 (en) | Geothermal Heating, Ventilating and Cooling System | |
| CN104763087A (en) | Ventilation and heat preservation module heating and cooling floor and energy-saving ventilation and air conditioning system | |
| CN220082834U (en) | Integrated pipe network of ventilation monitoring of earthing structure | |
| JP2001289518A (en) | Outside-air inlet device for building | |
| JP2004197974A (en) | Air conditioner and air conditioning method for residence | |
| KR20070028508A (en) | Application device of an underground temperature and a rainwater | |
| CN204804133U (en) | Ventilation heat preservation module heating cooling ground and energy -conserving ventilation air conditioning system | |
| CN205939427U (en) | Air film building energy conservation cooling system | |
| CN206648238U (en) | The ventilating system and communication tower base station of a kind of communication tower base station | |
| CN203940565U (en) | Building pipe well formula ventilating system | |
| JP4223467B2 (en) | Temperature control structure and temperature control method for buildings | |
| CN106949686A (en) | The temperature automatically controlled cooling system of high temperature tank foundation | |
| CN207211396U (en) | Building with multi-functional underground space structure | |
| CN211060312U (en) | Natural draft and mechanical exhaust combined comprehensive pipe trench ventilation system | |
| JP3825779B2 (en) | Temperature control structure and temperature control method for buildings | |
| CN201125542Y (en) | Green building | |
| CN208518101U (en) | A kind of external wall Rainproof moisture-proof gas permeable devices | |
| JPH06272894A (en) | House | |
| JP4638831B2 (en) | Floor heating system | |
| CN213626351U (en) | Roof ventilation waterproof structure of building | |
| CN206905161U (en) | Energy conduction integration refrigerating and heating systems | |
| KR100243060B1 (en) | Structure for wooden house with mud wall having the utmost use of natural energy | |
| CN214696515U (en) | Novel roof structure | |
| CN206220115U (en) | A kind of blower foundation concrete heat-insulating device | |
| CN108678195A (en) | A kind of external wall Rainproof moisture-proof gas permeable devices |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |