An OSB-based hydrothermal geothermal floor capable of releasing negative oxygen ions

Abstract

The OSB-based hydrothermal geothermal floor capable of releasing negative oxygen ions of the present invention has a three-layer solid wood composite floor structure. Its surface layer is a solid wood parquet, the core layer is OSB, the surface layer is painted, and a backboard is added after coating the bottom layer. The bottom layer coating is: 2-5% tourmaline powder, 15-25% flour, 25-35% talcum powder, 8-12% white latex, 1-3% cellulose, 8-12% metal powder, and water. The material of OSB is more stable and less prone to deformation. By adding metal powder to the bottom layer coating, the heat conduction performance is increased by using the coating, improving the heat conduction efficiency of the water heating. Moreover, the metal powder can transfer heat evenly, enabling the tourmaline powder attached to the subsurface layer of the floor in the coating to reach the optimal working state with the use of the hydrothermal geothermal floor, thereby stimulating negative oxygen ions and achieving the effects of purifying the air and removing formaldehyde, greatly enhancing the use experience of the hydrothermal geothermal floor.

Description

Technical Field

[0001] The present invention relates to the technical field of hydrothermal geothermal floors, and particularly to an OSB-based hydrothermal geothermal floor capable of releasing negative oxygen ions. Background Art

[0002] Indoor environmental problems have always been important issues that people have been concerned about. At present, various indoor material fields such as furniture and floors are developing towards formaldehyde-free and functionalization. The market share of geothermal floors has been increasing year by year;

[0003] Oriented strand board (OSB) is usually made from small-diameter log raw materials. It is processed into thin and long strand chips by a special flaker, dried, sorted, and mixed with glue, and then oriented paving is achieved by means of a special device, and then hot-pressed into a structural board; due to the good physical and mechanical properties of OSB, its characteristics of high material strength and good stability, so it is a good choice for the substrate of strengthened wood floors and is often applied to structural materials. Wood floors with OSB as the substrate greatly facilitate their installation and processing operations. In recent years, with the gradual recognition of the market, more and more furniture materials are also using OSB as the substrate. Because the adhesives used in OSB usually use isocyanates, the product itself has no formaldehyde release;

[0004] Negative oxygen ions are essentially negatively charged ions formed by an oxygen molecule obtaining an electron, so they are called negative oxygen ions. The functions of negative oxygen ions in purifying air and removing formaldehyde have been widely proven;

[0005] The existing solutions for generating negative oxygen ions usually directly add tourmaline powder to the adhesive. The adhesives currently used for floor substrates are still mainly urea-formaldehyde resins. Due to being coated by the adhesive, the efficiency of generating negative oxygen ions is relatively low, and the relatively low concentration of negative oxygen ions cannot well achieve the functions of purifying air and removing formaldehyde. And tourmaline powder usually needs to be under the condition of 42°C to generate negative oxygen ions, and the directly added tourmaline powder cannot directly activate the function of tourmaline to generate negative oxygen ions;

[0006] For a geothermal system, the entire ground is used as a radiator, and the heat medium in the floor interlayer is transmitted upward from bottom to top. By using the heat transfer principle, the indoor temperature is maintained within a comfortable and pleasant range, and it can achieve warm feet and cool head; according to the different heat mediums, geothermal is divided into two types: hydrothermal geothermal and electrothermal geothermal;

[0007] Hydrothermal geothermal uses hot water with a temperature not exceeding 60°C as the heat medium, which circulates in the pipe to heat the floor. It supplies heat upward through the ground by means of radiation and convection. The water-based underfloor heating with low-temperature hot water has a stable heat dissipation and is suitable for families with the elderly and children; it does not generate radiation during operation, has strong stability and is safer; the underfloor heating pipes have the same lifespan as the building and a long service life; it takes into account domestic hot water; the larger the area of use, the more energy-efficient;

[0008] The prior art generally uses traditional three-layer solid wood composite floors as hydrothermal geothermal floors. However, when constructing the hydrothermal geothermal system, it itself requires backfilling a 3-cm pea gravel layer. In addition, the hydrothermal geothermal floor heats up relatively slowly. For the traditional three-layer solid wood composite floor used in the prior art, it takes more than 12 hours to heat up when first turned on; the heat transfer is slow, the heating effect is poor, and it takes a long time to reach the ideal temperature after being turned on, resulting in a poor user experience;

[0009] Moreover, the geothermal floors used in the prior art will release formaldehyde in the initial stage of use, and the geothermal floors in the prior art are themselves a source of formaldehyde; and they cannot generate negative oxygen ions.

[0010] Therefore, those skilled in the art are committed to developing an OSB-based hydrothermal geothermal floor that can release negative oxygen ions, aiming to solve the defect problems existing in the prior art. Summary of the Invention

[0011] In view of the above-mentioned defects of the prior art, the technical problem to be solved by the present invention is that in the current prior art, for hydrothermal geothermal floors, the efficiency of generating negative oxygen ions is relatively low, and it cannot well achieve the function of purifying the air and removing formaldehyde through negative oxygen ions. In addition, the hydrothermal geothermal floors in the prior art have slow heat transfer and slow heating, and it takes a long time to heat up after being turned on. Moreover, they will release formaldehyde in the initial stage of use and cannot generate negative oxygen ions, resulting in a poor user experience.

[0012] To achieve the above object, the present invention provides an OSB-based hydrothermal geothermal floor that can release negative oxygen ions, and the technical solution adopted by the present invention is as follows;

[0013] The OSB-based hydrothermal geothermal floor has a three-layer solid wood composite floor structure. Its surface layer is a solid wood veneer, the core layer is OSB, the surface layer is painted, and a backboard is added after coating the bottom layer;

[0014] The bottom layer coating is: 2-5% tourmaline powder, 15-25% flour, 25-35% talc powder, 8-12% white latex, 1-3% cellulose, 8-12% metal powder, water;

[0015] The addition of the bottom layer coating can fill the surface of the OSB, so that the tourmaline powder that can release negative oxygen ions can adhere to the subsurface of the floor;

[0016] Furthermore, the use of flour in the base coat can improve the bonding ability between the surface of the OSB after finishing and the back panel.

[0017] Furthermore, the use of metal powder in the base coat can transfer heat evenly, enabling the tourmaline powder to be heated to around 40°C as the geothermal floor is used, thereby activating negative oxygen ions.

[0018] Furthermore, the talcum powder in the base coat is preferably putty powder. There are a large number of fillers in the putty powder, which can provide a large number of channels for the tourmaline powder to contact the air, making it easier to activate negative oxygen ions.

[0019] Furthermore, for the OSB-based hydrothermal geothermal floor, when processing the OSB, apply putty powder to both the front and back surfaces of the OSB. Utilizing the rough surface characteristics of the OSB, more functional putty powder can adhere to the surface of the substrate. After the functional putty powder dries and cures, sand it, and then bond the panel and the back panel with a formaldehyde-free adhesive such as polyurethane or soy protein.

[0020] Furthermore, for the OSB-based hydrothermal geothermal floor, the thickness of the back panel can be adjusted according to the temperature of the hydrothermal geothermal heat source, thereby adjusting the temperature so that the temperature of the putty layer in the OSB-based hydrothermal geothermal floor can be stabilized near 42°C, thus achieving the best activation of negative oxygen ions.

[0021] Adopting the above scheme, the OSB-based hydrothermal geothermal floor capable of releasing negative oxygen ions disclosed by the present invention has the following advantages:

[0022] (1) For the OSB-based hydrothermal geothermal floor capable of releasing negative oxygen ions of the present invention, the material of the OSB is more stable. Compared with the boards used in the prior art, it is less likely to deform and has a longer service life.

[0023] (2) For the OSB-based hydrothermal geothermal floor capable of releasing negative oxygen ions of the present invention, metal powder is added to the base coat, and the heat conduction performance is increased by using the coating, improving the heat conduction efficiency of the water heating, making the heating effect stronger, and greatly shortening the time required to heat the hydrothermal geothermal to the ideal temperature, thus greatly enhancing the use experience of the hydrothermal geothermal floor.

[0024] (3) For the OSB-based hydrothermal geothermal floor capable of releasing negative oxygen ions of the present invention, due to the selection of the base coat, a formaldehyde-free adhesive can be used for bonding the panel and the back panel, and no formaldehyde will be generated during the whole process of use. Moreover, by adding metal powder to the base coat, heat can be transferred evenly, enabling the tourmaline powder attached to the subsurface of the floor in the coating to be heated to the optimal working state as the hydrothermal geothermal floor is used, thereby activating negative oxygen ions and achieving the effects of purifying the air and removing formaldehyde.

[0025] In summary, the OSB-based hydrothermal geothermal floor capable of releasing negative oxygen ions disclosed by the present invention has a more stable OSB material and is less likely to deform. By adding metal powder to the bottom coating, the thermal conductivity is increased using the coating, improving the heat conduction efficiency of the water heating. Moreover, the metal powder can transfer heat evenly, enabling the tourmaline powder attached to the subsurface of the floor in the coating to be heated to the optimal working state as the hydrothermal geothermal floor is used, thereby stimulating negative oxygen ions to achieve the effect of purifying the air and removing formaldehyde, greatly enhancing the usage experience of the hydrothermal geothermal floor.

[0026] The following will further illustrate the concept, specific technical solutions and resulting technical effects of the present invention in combination with specific embodiments to fully understand the purpose, features and effects of the present invention. Specific Embodiments

[0027] The following introduces multiple preferred embodiments of the present invention to make its technical content clearer and easier to understand. The present invention can be embodied in many different forms of embodiments, and these embodiments are described exemplarily. The protection scope of the present invention is not limited to the embodiments mentioned in the text.

[0028] Embodiment 1: Use the OSB-based hydrothermal geothermal floor capable of releasing negative oxygen ions of the present invention

[0029] Due to the slow heat transfer and the hidden danger of water pipe rupture in water heating, but the change in the moisture content of the board is relatively small for hydrothermal. Based on this, the OSB-based hydrothermal geothermal floor adopted in this Embodiment 1 has a three-layer solid wood composite floor structure, with a solid wood veneer on the surface layer, OSB in the core layer, painted on the surface layer, and a backboard added after coating the bottom layer;

[0030] Specifically implemented, the bottom coating of this Embodiment 1 is: 3% tourmaline powder, 20% flour, 30% talcum powder, 10% white latex, 1.5% cellulose, 10% metal powder, water;

[0031] The addition of the bottom coating can fill the surface of the OSB, enabling the tourmaline powder capable of releasing negative oxygen ions to adhere to the subsurface of the floor;

[0032] In the bottom coating, the use of flour can enhance the bonding ability between the surface of the painted OSB and the backboard;

[0033] In the bottom coating, the use of metal powder can transfer heat evenly, enabling the tourmaline powder to be heated to about 40 °C as the geothermal floor is used, thereby stimulating negative oxygen ions;

[0034] The talcum powder in the bottom coating is preferably putty powder. There are a large number of fillers in the putty powder, which can provide a large number of channels for the tourmaline powder to contact the air, making it easier to stimulate negative oxygen ions;

[0035] For the OSB-based hydrothermal geothermal floor, when processing the OSB, putty powder is applied to both the front and back surfaces of the OSB. Utilizing the rough characteristics of the OSB surface, more functional putty powder can adhere to the substrate surface. After the functional putty powder dries and cures, sanding is carried out. After sanding, the panel and the backboard are bonded with a formaldehyde-free adhesive such as polyurethane or soy protein.

[0036] For the OSB-based hydrothermal geothermal floor, the thickness of the backboard can be adjusted according to the temperature of the hydrothermal geothermal heat source, thereby adjusting the temperature so that the temperature of the putty layer in the OSB-based hydrothermal geothermal floor can be stabilized near 42°C, thus achieving the best negative oxygen ion excitation.

[0037] After completing the manufacture of the OSB-based hydrothermal geothermal floor capable of releasing negative oxygen ions of the present invention, subsequently, the OSB-based hydrothermal geothermal floor of Example 1 is tested for thermal conductivity, formaldehyde release amount, and negative oxygen ion concentration.

[0038] The test principle of the thermal conductivity is that a constant heat energy is transferred from the lower surface of the hydrothermal geothermal floor to the upper surface, and the ratio of the temperature value when the upper surface temperature reaches stability to the time used is tested. The floor thermal conductivity can be calculated according to the formula Q = t / T. In the formula, Q represents the floor thermal conductivity, with the unit of degrees Celsius per hour; t represents the temperature of the upper surface of the floor when it reaches stability, with the unit of degrees Celsius; T represents the time used when the upper surface temperature reaches stability, with the unit of hours.

[0039] The equipment name used in this thermal conductivity test is: Floor Thermal Conductivity Law Analyzer, and its sensor model is pt100, with A-level accuracy; the test reference temperature is 20°C, and the heating temperature is 70°C.

[0040] Finally, the test result of Example 1 is converted into a common thermal conductivity of 0.45 W / (m·K).

[0041] The determination method of the formaldehyde release amount is the 1m 3 climate chamber method, and its test principle is: put the OSB-based hydrothermal geothermal floor with a surface area of 1m 2 into a climate chamber with the temperature, relative humidity, air flow rate, and air exchange rate controlled at certain values; formaldehyde is released from the OSB-based hydrothermal geothermal floor and mixed with the air in the chamber. Regularly extract the air in the chamber, and pass the extracted air through an absorption bottle filled with distilled water, and all the formaldehyde in the air dissolves in the water; determine the amount of formaldehyde in the absorption liquid and the volume of the extracted air, and calculate the amount of formaldehyde in each cubic meter of air, expressed in milligrams per cubic meter (mg / m 3 ) ; The air extraction is periodic until the formaldehyde mass concentration in the air in the climate chamber reaches a stable state; finally, the formaldehyde release amount of Example 1 in the test result is less than 0.02 mg / m3 ;

[0042] The test of the negative oxygen ion concentration is carried out after a period of time when the OSB-based hydrothermal geothermal floor in Embodiment 1 of the present invention is in normal operation. By using a negative ion detector model KEC900, it is placed above the hydrothermal floor to detect the negative oxygen ion concentration in the air. The test result will be directly displayed on the display screen of the KEC900 negative ion detector. After 3 measurements, the negative oxygen ion concentration in Embodiment 1 of the present invention is 1,829 ions / cm 3 ; It is comparable to the negative oxygen ion concentration in the suburban park, and has a relatively fresh air freshness level.

[0043] Embodiment 2: Using the OSB-based hydrothermal geothermal floor capable of releasing negative oxygen ions of the present invention

[0044] Specifically, the bottom layer coating in this Embodiment 2 is: tourmaline powder 2%, flour 15%, talcum powder 25%, white latex 8%, 1% cellulose, 8% metal powder, water;

[0045] Except for the component content of the bottom layer coating being different from that in Embodiment 1, the rest in Embodiment 2 is the same as that in Embodiment 1;

[0046] The test results of Embodiment 2 are as follows: Thermal conductivity: 0.39 W / (m·K); Formaldehyde release amount is less than 0.02 mg / m 3 ; The result of the test of the negative oxygen ion concentration is: The negative oxygen ion concentration is 1,520 ions / cm 3 , and the air freshness is relatively fresh.

[0047] Embodiment 3: Using the OSB-based hydrothermal geothermal floor capable of releasing negative oxygen ions of the present invention

[0048] Specifically, the bottom layer coating in this Embodiment 3 is: tourmaline powder 5%, flour 25%, talcum powder 35%, white latex 12%, 3% cellulose, 12% metal powder, water;

[0049] Except for the component content of the bottom layer coating being different from that in Embodiment 1, the rest in Embodiment 3 is the same as that in Embodiment 1;

[0050] The test results of Embodiment 3 are as follows: Thermal conductivity: 0.52 W / (m·K); Formaldehyde release amount is less than 0.02 mg / m 3 ; The result of the test of the negative oxygen ion concentration is: The negative oxygen ion concentration is 1,932 ions / cm 3 , and the air freshness is relatively fresh.

[0051] Comparative Example 1: The traditional three-layer solid wood composite splicing floor most commonly used in the prior art is selected in this Comparative Example 1

[0052] Subsequently, the equipment in Test Example 1 was used to test the thermal conductivity, formaldehyde release, and negative oxygen ion concentration of the floors in Comparative Example 1 respectively; all settings during the test were the same as those in Example 1. Except for the different floor materials, other characteristics such as floor thickness were the same.

[0053] The test results of Comparative Example 1 are as follows: Thermal conductivity: 0.12 W / (m·K); Formaldehyde release is less than 0.08 mg / m 3 ; The test result of negative oxygen ion concentration is: The negative oxygen ion concentration is 287 per cm 3 , and the air freshness is poor.

[0054] In Comparative Example 2, the selected natural solid wood floor is made of beech, and the thickness is the same as that of the floor in Comparative Example 1;

[0055] Subsequently, the equipment in Test Example 1 was used to test the thermal conductivity, formaldehyde release, and negative oxygen ion concentration of the floor in Comparative Example 2 respectively; except for the different floor materials, all other settings during the test were the same as those in Example 1.

[0056] The test results of Comparative Example 2 are as follows: Thermal conductivity: 0.11 W / (m·K); Formaldehyde release is less than 0.01 mg / m 3 ; The test result of negative oxygen ion concentration is: The negative oxygen ion concentration is 292 per cm 3 , and the air freshness is poor.

[0057] Comparative analysis: Although there are some changes in the bottom coating components of Examples 1, 2, and 3, the final test results show that the thermal conductivity is significantly higher than that of the prior art in Comparative Example 1 and the beech in Comparative Example 2. The maximum gap in thermal conductivity reaches 5 times, which proves that the addition of metal powder in the present invention significantly improves the heat conduction efficiency of the OSB water-based underfloor heating floor; in terms of formaldehyde release, the differences among Examples 1, 2, and 3 are not obvious, and they are all significantly lower, far lower than the national mandatory standard. The formaldehyde release in Comparative Example 1 only meets the national mandatory standard, and there is still a certain amount of formaldehyde release. The beech log used in Comparative Example 2 hardly has formaldehyde volatilization; in terms of negative oxygen ion concentration, due to the change in the content of tourmaline powder and metal powder in the bottom coating components of Examples 1, 2, and 3, the negative oxygen ion concentration in Examples 1, 2, and 3 increases with the increase in the content of tourmaline powder and metal powder, but the effect is no longer obvious when continuing to increase; while in Comparative Examples 1 and 2, no negative oxygen ions can be released during the operation of the water-based underfloor heating floor, and the difference in negative oxygen ion concentration from Examples 1, 2, and 3 reaches 5 times or more. A higher concentration of negative oxygen ions has a good effect on removing formaldehyde in the house and purifying the air.

[0058] In summary, for the patented technical solution, the material of the OSB is more stable and less prone to deformation. By adding metal powder to the bottom coating, the heat conduction performance is enhanced using the coating, improving the heat conduction efficiency of the water heating system. Moreover, the metal powder can evenly transfer heat, enabling the tourmaline powder attached to the subsurface of the floor in the coating to reach the optimal working state as the water-heated geothermal floor is used, thereby stimulating negative oxygen ions and achieving the effects of purifying the air and removing formaldehyde, greatly enhancing the usage experience of the water-heated geothermal floor.

[0059] The preferred specific embodiments of the present invention have been described in detail above. It should be understood that those of ordinary skill in the art can make many modifications and variations based on the concept of the present invention without creative efforts. Therefore, all technical solutions that can be obtained by those skilled in the art in the technical field based on the concept of the present invention through logical analysis, reasoning, or limited experiments on the basis of the prior art shall fall within the protection scope determined by the claims.

Claims

1. An OSB-based hydrothermal geothermal floor capable of releasing negative oxygen ions, Characterized in that, The OSB-based hydrothermal geothermal floor has a three-layer solid wood composite floor structure. Its surface layer is a solid wood veneer, the core layer is OSB, the surface layer is painted, and a backboard is added after coating the bottom layer; The coating for the bottom layer is: 2-5% tourmaline powder, 15-25% flour, 25-35% talcum powder, 8-12% white latex, 1-3% cellulose, 8-12% metal powder, water; The talcum powder in the bottom layer coating is putty powder, and there are a large number of fillers in the putty powder, providing a large number of channels for the tourmaline powder to contact the air, thereby stimulating negative oxygen ions; For the OSB-based hydrothermal geothermal floor, when processing the OSB, putty powder is applied to both the front and back surfaces of the OSB. Utilizing the rough characteristics of the OSB surface, more functional putty powder can adhere to the surface of the substrate. After the functional putty powder dries and cures, it is sanded, and then the panel and the backboard are bonded with polyurethane or soy protein formaldehyde-free adhesive; For the OSB-based hydrothermal geothermal floor, according to the temperature of the hydrothermal geothermal heat source, the thickness of the backboard is adjusted, thereby adjusting the temperature, so that the temperature of the putty layer in the OSB-based hydrothermal geothermal floor is stabilized at 42 °C, thereby realizing the stimulation of negative oxygen ions.

2. The OSB-based hydrothermal geothermal floor according to claim 1, Characterized in that, The addition of the bottom layer coating makes the surface of the OSB leveled, so that the tourmaline powder for releasing negative oxygen ions adheres to the subsurface of the floor; In the bottom layer coating, the use of flour can improve the bonding ability between the surface of the OSB after coating and the backboard; In the bottom layer coating, the use of metal powder can transfer heat evenly, enabling the tourmaline powder to be heated to 40 °C as the geothermal floor is used, thereby stimulating negative oxygen ions.

3. The OSB-based hydrothermal geothermal floor according to claim 1, Characterized in that, The coating for the bottom layer is: 2-5% tourmaline powder, 20% flour, 30% talcum powder, 10% white latex, 1.5% cellulose, 10% metal powder, water.