Fresh air system for improving indoor air quality

Abstract

The invention belongs to the technical field of fresh air systems, and particularly relates to a fresh air system for improving indoor air quality, which comprises a fresh air machine, a through-wall pipe, a two-position four-way reversing valve I, a ground pipe fitting, a waterway pipeline, a temperature controller, a two-position four-way reversing valve II, an air supply extension pipe, an air supply box, an air return extension pipe and an air return box, the fresh air machine is connected with one end of the ground radiation unit through a through-wall pipe and a two-position four-way reversing valve I. The ground radiation unit is connected with a temperature controller through a waterway pipeline, and the other end of the ground radiation unit is connected with an air supply extension pipe and an air return extension pipe through a two-position four-way reversing valve II. The outer ends of the air supply extension pipe and the air return extension pipe are connected with an air supply box and an air return box respectively. The system provides the functions of refrigeration, heating, fresh air, purification, dehumidification and humidification, and has the advantages of being convenient to construct, long in service life, convenient to maintain, free of indoor electromechanical equipment noise, low in construction communication cost and safe in building structure maintenance.

Description

Technical Field

[0001] The invention belongs to the technical field of fresh air systems, and in particular relates to a fresh air system for improving indoor air quality. Background Art

[0002] The fresh air system plays a vital role in improving indoor air quality. Through a series of efficient and scientific technical means, it effectively solves the common indoor air pollution problems in modern buildings and provides people with a healthier and more comfortable living environment.

[0003] Floor radiant heating is also known as floor heating. It radiates heat from the floor to the outside, making people feel cool on the head and warm on the feet, which is more in line with the requirements of health and comfort. At the same time, it has many advantages such as high efficiency, energy saving, and environmental friendliness. It has gradually replaced heating and air conditioning and has become the most popular home heating method among consumers. However, the use of floor heating for heating still has the disadvantages of low heating rate and slow temperature regulation, which inevitably affects the comfort of users. At the same time, in summer, if floor radiant cooling is used directly to achieve the purpose of lowering the room temperature, there will be a risk of condensation, and the indoor humidity requirements are very high.

[0004] Fresh air systems can provide fresh and clean air indoors. Due to the current serious air pollution and poor air environment, more and more residential and office buildings are beginning to install fresh air systems to improve indoor air quality. The fresh air system itself cannot help regulate the indoor temperature. On the contrary, in winter, the fresh air system brings low-temperature outdoor air into the room, lowering the indoor temperature, which in turn requires the heating system to consume more energy to increase the indoor temperature. To address this problem, there are currently two solutions: heat exchange and electric heating. However, both solutions have obvious disadvantages. The fresh air system with heat exchange function on the market currently has a very low heat exchange efficiency and a poor effect; and although the electric heating solution has a good heating effect, it consumes electricity, increases heating costs, and has certain safety hazards. In addition, the traditional fresh air system needs to run pipes through beams from the top surface, which requires lowering the floor height, affecting the maintenance structure and decoration effect of the house.

[0005] In view of this, it is necessary to optimize and improve the traditional fresh air system. Summary of the invention

[0006] The purpose of the present invention is to overcome the above-mentioned problems existing in the prior art and to provide a fresh air system for improving indoor air quality.

[0007] In order to achieve the above technical objectives and the above technical effects, the present invention is implemented through the following technical solutions:

[0008] The present invention provides a fresh air system for improving indoor air quality, comprising a fresh air fan, a wall-penetrating pipe, a two-position four-way reversing valve I, ground pipe fittings, a water pipeline, a thermostat, a two-position four-way reversing valve II, an air supply extension pipe, an air supply box, an air return extension pipe and a return air box, wherein the ground pipe fittings are in total and are sequentially connected to form a ground radiation unit, the ground radiation unit is connected to the thermostat through the water pipeline, the fresh air fan is connected to one end of the ground radiation unit through the wall-penetrating pipe and the two-position four-way reversing valve I, the other end of the ground radiation unit is respectively connected to the air supply extension pipe and the return air extension pipe through the two-position four-way reversing valve II, the outer end of the air supply extension pipe is connected to the air supply box, and the outer end of the return air extension pipe is connected to the return air box.

[0009] Furthermore, in the above-mentioned fresh air system for improving indoor air quality, the fresh air fan is installed outdoors, and the wall-penetrating pipe penetrates the wall between the outdoors and the indoors.

[0010] Furthermore, in the above-mentioned fresh air system for improving indoor air quality, a supply fan, an exhaust fan, an air supply duct, an exhaust duct, and a fresh air filter are installed inside the fresh air fan, the supply fan is installed at the outer end of the air supply duct, the fresh air filter is installed in the middle of the air supply duct, and the exhaust fan is installed at the inner end of the exhaust duct.

[0011] Furthermore, in the above-mentioned fresh air system for improving indoor air quality, the ground pipe fittings include an outer pipe, an inner pipe, a coil bracket, a coil and a heat storage plate, the inner pipe is installed at the lower part of the outer pipe, the inner cavity of the inner pipe serves as a first air guide channel, the upper inner cavity of the outer pipe serves as a second air guide channel, the upper end of the inner pipe supports the coil through a plurality of coil brackets, and a plurality of heat storage guide plates are evenly distributed on the inner side of the top plate of the outer pipe.

[0012] Furthermore, in the above-mentioned fresh air system for improving indoor air quality, the two-position four-way reversing valve I and the two-position four-way reversing valve II are respectively provided with an air inlet end A, an air inlet end B, an air outlet end A and an air outlet end B, the outer end of the air inlet end A is connected with the inner end of the air supply duct, the outer end of the air inlet end A is connected with the first air guide channel, and the outer end of the air outlet end A is connected with the second air guide channel; the inner end of the air inlet end A is connected with the inner end of the air outlet end A / air outlet end B, and the inner end of the air inlet end B is connected with the inner end of the air outlet end B / air outlet end A.

[0013] Furthermore, in the above-mentioned fresh air system for improving indoor air quality, the coils in each of the ground pipes are connected in sequence, and the two outermost coils are respectively connected to the input end and the output end of the thermostat through water pipes.

[0014] Furthermore, in the above-mentioned fresh air system for improving indoor air quality, the air supply box is installed on the side wall of the indoor wall, and the return air box is installed on the top wall of the indoor wall.

[0015] Furthermore, in the above-mentioned fresh air system for improving indoor air quality, a humidifier and dehumidifier integrated machine is also installed in the air supply box.

[0016] Furthermore, the above-mentioned fresh air system for improving indoor air quality also includes a controller, an air supply temperature sensor, an indoor temperature sensor and an indoor humidity sensor. The air supply temperature sensor is installed inside the air supply duct of the fresh air fan, and the controller, indoor temperature sensor and indoor humidity sensor are installed inside the return air box. The controller is respectively connected to the air supply fan, exhaust fan, humidifier and dehumidifier, air supply temperature sensor, indoor temperature sensor and indoor humidity sensor.

[0017] Furthermore, in the above-mentioned fresh air system for improving indoor air quality, the outer tube is made of a heat-conducting aluminum alloy material, the inner tube is made of a heat-insulating material, and the heat-storage guide plate is made of a heat-storage ceramic body.

[0018] The beneficial effects of the present invention are:

[0019] The present invention solves the problem that the top surface of the traditional fresh air system needs to run pipes through beams and reduce the floor height, which affects the maintenance structure and decoration effect of the house. It has the advantages of convenient construction, long service life, convenient maintenance, no noise from electromechanical equipment indoors, low construction communication costs, and safe maintenance of building structures. The present invention is based on heat exchange between ground pipes and air to adjust the temperature of the entire room. The temperature is increased or decreased by the air below to achieve overall temperature increase or decrease, so the temperature adjustment effect is better, ensuring a better temperature regulation effect. According to the indoor humidity requirements, a humidifier and dehumidifier is used to perform dehumidification and humidification functions.

[0020] Of course, any product implementing the present invention does not necessarily need to achieve all of the above advantages at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 It is a schematic diagram of the main structure of the ground pipe fitting in the present invention;

[0024] Figure 3 It is a schematic diagram of the three-dimensional structure of the ground pipe fitting in the present invention;

[0025] Figure 4 It is a schematic diagram of the internal structure of the ground pipe in the present invention;

[0026] Figure 5 It is a schematic diagram of the structure of the coil support and the coil in the present invention;

[0027] Figure 6 It is a connection block diagram of the main electrical components in the present invention;

[0028] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0029] 1-Fresh air fan, 2-Wall pipe, 3-Two-position four-way reversing valve I, 4-Ground pipe fittings, 401-Outer pipe, 402-Inner pipe, 403-First air guide channel, 404-Second air guide channel, 405-Coil bracket, 406-Coil, 407-Heat storage plate, 5-Water pipeline, 6-Thermostat, 7-Two-position four-way reversing valve II, 8-Supply air extension pipe, 9-Supply air box, 10-Return air extension pipe, 11-Return air box, 12-Supply air fan, 13-Exhaust fan, 14-Controller, 15-Humidifier and dehumidifier, 16-Supply air temperature sensor, 17-Indoor temperature sensor, 18-Indoor humidity sensor. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] like Figure 1-Figure 6 As shown, this embodiment provides a fresh air system for improving indoor air quality, including a fresh air fan 1, a wall-penetrating pipe 2, a two-position four-way reversing valve I3, a ground pipe 4, a water pipe 5, a thermostat 6, a two-position four-way reversing valve II7, an air supply extension pipe 8, an air supply box 9, a return air extension pipe 10 and a return air box 11. There are a plurality of ground pipes 4, which are sequentially connected to form a ground radiation unit, and the ground radiation unit is connected to the thermostat 6 through the water pipe 5. The fresh air fan 1 is connected to one end of the ground radiation unit through the wall-penetrating pipe 2 and the two-position four-way reversing valve I3, and the other end of the ground radiation unit is respectively connected to the air supply extension pipe 8 and the return air extension pipe 10 through the two-position four-way reversing valve II7, the outer end of the air supply extension pipe 8 is connected to the air supply box 9, and the outer end of the return air extension pipe 10 is connected to the return air box 11.

[0032] In this embodiment, the fresh air fan 1 is installed outdoors, and the wall-penetrating pipe 2 passes through the wall between the outdoors and the indoors.

[0033] In this embodiment, the interior of the fresh air fan 1 is equipped with a supply air fan 12, an exhaust air fan 13, an air supply duct, an exhaust air duct, and a fresh air filter. The supply air fan 12 is installed at the outer end of the air supply duct, the fresh air filter is installed in the middle of the air supply duct, and the exhaust air fan 13 is installed at the inner end of the exhaust duct.

[0034] In this embodiment, the ground pipe fitting 4 includes an outer pipe 401, an inner pipe 402, a coil bracket 405, a coil 406 and a heat storage plate 407. The inner pipe 402 is installed at the lower part of the outer pipe 401, the inner cavity of the inner pipe 402 serves as the first air guide channel 403, the upper inner cavity of the outer pipe 401 serves as the second air guide channel 404, the upper end of the inner pipe 402 supports the coil 406 through a plurality of coil brackets 405, and a plurality of heat storage guide plates are evenly distributed on the inner side of the top plate of the outer pipe 401.

[0035] In this embodiment, the two-position four-way reversing valve I3 and the two-position four-way reversing valve II7 are respectively provided with an air inlet end A, an air inlet end B, an air outlet end A and an air outlet end B; the outer end of the air inlet end A is connected to the inner end of the air supply duct, the outer end of the air inlet end A is connected to the first air guide channel 403, and the outer end of the air outlet end A is connected to the second air guide channel 404; the inner end of the air inlet end A is connected to the inner end of the air outlet end A / air outlet end B, and the inner end of the air inlet end B is connected to the inner end of the air outlet end B / air outlet end A.

[0036] In this embodiment, the coils 406 in the ground pipes 4 are connected to each other in sequence, and the two outermost coils 406 are connected to the input end and the output end of the thermostat 6 respectively through the water pipe 5.

[0037] In this embodiment, the air supply box 9 is installed on the side wall of the indoor wall, and the return air box 11 is installed on the top wall of the indoor wall.

[0038] In this embodiment, a humidifier-dehumidifier integrated machine 15 is also installed in the air supply box 9 .

[0039] In this embodiment, it also includes a controller 14, an air supply temperature sensor 16, an indoor temperature sensor 17 and an indoor humidity sensor 18. The air supply temperature sensor 16 is installed inside the air supply duct of the fresh air fan 1, and the controller 14, the indoor temperature sensor 17 and the indoor humidity sensor 18 are installed inside the return air box 11. The controller 14 is respectively connected to the air supply fan 12, the exhaust fan 13, the humidifier and dehumidifier 14, the air supply temperature sensor 16, the indoor temperature sensor 17 and the indoor humidity sensor 18.

[0040] In this embodiment, the outer tube 401 is made of a heat-conducting aluminum alloy material, the inner tube 402 is made of a heat-insulating material, and the heat-storage guide plate 407 is made of a heat-storage ceramic body.

[0041] The specific application of this embodiment is: two air paths are formed by respectively utilizing the first air guide channel 403 and the second air guide channel 404 of the ground pipe 4, wherein the first air path where the first air guide channel 403 is located can contact the coil 406, and the second air path where the second air guide channel 404 is located is isolated from the coil 406.

[0042] Through the mutual cooperation of the two-position four-way reversing valve I3 and the two-position four-way reversing valve II7, the connection relationship between the supply air duct, the return air duct of the fresh air fan 1 and the first air path and the second air path can be switched.

[0043] In winter, when the thermostat 6 controls the coil 406 to perform cyclic heating via the water pipe 5 and the air supply pipe is connected to the first air passage, the coil 406 and the heat storage plate 407 can be used to preheat the fresh air, which is beneficial to ensure a constant indoor temperature. When the thermostat 6 controls the coil 406 to perform cyclic heating via the water pipe 5 and the air supply pipe is connected to the second air passage, the fresh air can be used to lower the indoor temperature without the thermostat 6 performing water temperature adjustment. At this time, the return air passes through the first air passage, and the return air temperature is basically the same as the indoor temperature, which will not affect the heating effect of the coil 406.

[0044] In summer, when the thermostat 6 controls the coil 406 to perform circulating cooling via the water pipe 5, and the air supply pipe is connected to the first air passage, the coil 406 and the heat storage plate 407 can be used to pre-cool the fresh air, which is beneficial to ensure a constant indoor temperature. When the thermostat 6 controls the coil 406 to perform circulating cooling via the water pipe 5, and the air supply pipe is connected to the second air passage, the fresh air can be used to increase the indoor temperature without the thermostat 6 performing water temperature adjustment. At this time, the return air passes through the first air passage, and the return air temperature is basically the same as the indoor temperature, which will not affect the cooling effect of the coil 406.

[0045] This embodiment solves the problem that the traditional fresh air system needs to run pipes through beams on the top surface, and reduces the floor height, which affects the maintenance structure and decoration effect of the house. It has the advantages of convenient construction, long service life, convenient maintenance, no noise from electromechanical equipment indoors, low construction communication costs, and safe maintenance of building structures. This embodiment is based on heat exchange between ground pipes and air to adjust the temperature of the entire room. The temperature is increased or decreased by moving the air from below upward to achieve overall temperature increase or decrease, so the temperature adjustment effect is better, ensuring a better temperature adjustment effect. According to the indoor humidity requirements, a humidifier and dehumidifier is used to perform dehumidification and humidification functions.

[0046] The preferred embodiments of the present invention disclosed above are only useful to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A fresh air system for improving indoor air quality, characterized in that: It includes a fresh air fan, a wall-penetrating pipe, a two-position four-way reversing valve I, ground pipe fittings, water pipelines, a thermostat, a two-position four-way reversing valve II, an air supply extension pipe, an air supply box, a return air extension pipe and a return air box. There are a plurality of ground pipe fittings, which are connected in sequence to form a ground radiation unit. The ground radiation unit is connected to a thermostat through a water pipeline. The fresh air fan is connected to one end of the ground radiation unit through the wall-penetrating pipe and the two-position four-way reversing valve I. The other end of the ground radiation unit is respectively connected to the air supply extension pipe and the return air extension pipe through the two-position four-way reversing valve II. The outer end of the air supply extension pipe is connected to the air supply box, and the outer end of the return air extension pipe is connected to the return air box.

2. The fresh air system for improving indoor air quality according to claim 1, characterized in that: The fresh air fan is installed outdoors, and the through-wall pipe penetrates the wall between the outdoors and the indoors.

3. The fresh air system for improving indoor air quality according to claim 2, characterized in that: The fresh air fan is internally installed with a supply air fan, an exhaust air fan, an air supply duct, an exhaust air duct, and a fresh air filter; the supply air fan is installed at the outer end of the air supply duct, the fresh air filter is installed in the middle of the air supply duct, and the exhaust air fan is installed at the inner end of the exhaust duct.

4. The fresh air system for improving indoor air quality according to claim 3, characterized in that: The ground pipe fittings include an outer pipe, an inner pipe, a coil bracket, a coil and a heat storage plate. The inner pipe is installed at the lower part of the outer pipe, the inner cavity of the inner pipe serves as a first air guide channel, the upper inner cavity of the outer pipe serves as a second air guide channel, the upper end of the inner pipe supports the coil through a plurality of coil brackets, and a plurality of heat storage guide plates are evenly distributed on the inner side of the top plate of the outer pipe.

5. The fresh air system for improving indoor air quality according to claim 4, characterized in that: The two-position four-way reversing valve I and the two-position four-way reversing valve II are respectively provided with an air inlet end A, an air inlet end B, an air outlet end A and an air outlet end B; the outer end of the air inlet end A is connected with the inner end of the air supply duct, the outer end of the air inlet end A is connected with the first air guiding channel, and the outer end of the air outlet end A is connected with the second air guiding channel; the inner end of the air inlet end A is connected with the inner end of the air outlet end A / air outlet end B, and the inner end of the air inlet end B is connected with the inner end of the air outlet end B / air outlet end A.

6. The fresh air system for improving indoor air quality according to claim 5, characterized in that: The coils in the ground pipes are connected in sequence, and the two outermost coils are connected to the input end and the output end of the temperature controller respectively through water pipes.

7. The fresh air system for improving indoor air quality according to claim 6, characterized in that: The air supply box is installed on the side wall of the indoor wall, and the air return box is installed on the top wall of the indoor wall.

8. The fresh air system for improving indoor air quality according to claim 7, characterized in that: A humidification and dehumidification integrated machine is also installed in the air supply box.

9. The fresh air system for improving indoor air quality according to claim 8, characterized in that: It also includes a controller, an air supply temperature sensor, an indoor temperature sensor and an indoor humidity sensor. The air supply temperature sensor is installed inside the air supply duct of the fresh air fan, and the controller, the indoor temperature sensor and the indoor humidity sensor are installed inside the return air box. The controller is respectively connected to the air supply fan, the exhaust fan, the humidifier and dehumidifier, the air supply temperature sensor, the indoor temperature sensor and the indoor humidity sensor.

10. The fresh air system for improving indoor air quality according to claim 9, characterized in that: The outer tube is made of a heat-conducting aluminum alloy material, the inner tube is made of a heat-insulating material, and the heat-storage guide plate is made of a heat-storage ceramic body.

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