High-efficiency fresh air treatment unit based on fluorine pump heat recovery

Abstract

The present application relates to the field of air heat exchange regulation and ventilation, and in particular to an efficient fresh air treatment unit based on fluorine pump heat recovery, which includes a fresh air machine housing, in which a filter assembly, a heat exchange assembly and a humidification assembly are respectively arranged, the filter assembly is used to filter the air in the fresh air machine housing, the heat exchange assembly is used to realize the exchange and transfer of heat in the fresh air machine housing, the humidification assembly is used to humidify the air in the fresh air machine housing, and an exhaust fan is installed in the fresh air machine housing; the heat exchange assembly includes a precooling coil, a cooling coil and a heating coil, which are sequentially spaced in the fresh air machine housing along the length direction of the fresh air machine housing, the precooling coil is close to the air inlet, the heating coil is close to the air outlet, and the cooling coil is located between the precooling coil and the heating coil. The purpose of the present application is to effectively solve the problem of low exhaust heat recovery efficiency of the fresh air unit.

Description

Technical Field

[0001] The present application relates to the field of air heat exchange regulation and ventilation, and in particular to a high-efficiency fresh air treatment unit based on fluorine pump heat recovery. Background Art

[0002] The fresh air unit is a device that provides ventilation. Its basic function is to exhaust the dirty air in the room and introduce fresh air from the outside into the room to achieve indoor and outdoor air circulation. At present, the fresh air industry is still in a rapid development stage. Whether it is residential buildings or public buildings, the application of fresh air systems is increasing. With the introduction of the national dual-carbon policy, energy saving and high efficiency have also become the key research directions of the fresh air unit industry.

[0003] In the related technology, the fresh air unit generally achieves the specified air supply parameters by reheating the air after surface cooling. The most common way to reheat the air is to use an electric heating device, but this method has a serious cold and heat offset phenomenon, which can easily cause a waste of cooling capacity; secondly, there is also a method of setting exhaust heat recovery to achieve air reheating and energy recovery, but the exhaust heat recovery components are generally large in size, and require a high installation space, and common exhaust heat recovery methods such as rotary heat recovery and plate heat recovery usually have low heat recovery efficiency; there is also a method of setting a direct expansion compression cycle to achieve air reheating, but the excess condensation heat of the direct expansion compression cycle will increase the burden on the external refrigeration room, thereby increasing energy consumption. Summary of the invention

[0004] The present application provides a high-efficiency fresh air treatment unit based on fluorine pump heat recovery, with the aim of effectively solving the problems of cold and heat offset and energy waste caused by the conventional electric heating method for air reheating in the fresh air unit, the large size of the exhaust heat recovery components of the fresh air unit requiring a high installation space, and the low exhaust heat recovery efficiency of the fresh air unit.

[0005] This application provides a high-efficiency fresh air treatment unit based on fluorine pump heat recovery, which adopts the following technical solutions:

[0006] A high-efficiency fresh air treatment unit based on fluorine pump heat recovery comprises a fresh air machine housing, wherein the left and right sides of the fresh air machine housing are respectively provided with an air inlet and an air outlet, wherein the air inlet is connected to the outside, and the air outlet is connected to the inside of the room, wherein the fresh air machine housing is respectively provided with a filter component, a heat exchange component and a humidification component, wherein the filter component is used for filtering the air sucked in and discharged from the fresh air machine housing, the heat exchange component is used for realizing the exchange and transfer of heat in the fresh air machine housing, the humidification component is used for humidifying the air in the fresh air machine housing, and an exhaust blower is installed in the fresh air machine housing;

[0007] The heat exchange component includes a precooling coil, a cooling coil and a heating coil, which are distributed in the fresh air machine case in sequence and at intervals along the length direction of the fresh air machine case. The precooling coil is close to the air inlet, the heating coil is close to the air outlet, and the cooling coil is located between the precooling coil and the heating coil.

[0008] Compared with the traditional heat exchange method, the above technical solution can store the energy of the hot air into the heating coil for subsequent heating and heating of the air while precooling the hot air entering the fresh air machine through the heat cycle between the precooling coil and the heating coil. This makes the heat cycle between the precooling coil and the heating coil have two effects at the same time:

[0009] 1. Pre-cooling the hot air before the cooling coil cools it down, which helps to reduce the energy consumption required for the cooling coil to cool down the hot air;

[0010] Second, during pre-cooling, the energy in the hot air is transferred to the heating coil for storage, and this energy is used to enable the heating coil to subsequently heat the air again, thereby saving the energy consumption required for the heating coil to heat the air again.

[0011] Furthermore, the present application can transfer heat through the heat cycle between the pre-cooling coil, the cooling coil and the heating coil, thereby realizing the reheating of the air after cooling and dehumidification, greatly improving the energy utilization efficiency. At the same time, the present application will not increase the installation space of the fresh air unit, which is convenient for the installation and implementation of the project.

[0012] Preferably, a fluorine pump is provided on the pipeline connecting the precooling coil and the heating coil.

[0013] By adopting the above technical solution, the fluorine pump can use natural cold sources for cooling. When the outdoor hot air flows to the pre-cooling coil, the fluorine pump is used to pre-cool the hot air, and the fluorine pump transfers this part of energy to the heating coil for storage, and then the heat exchange and transfer between the pre-cooling coil and the heating coil is realized through the fluorine pump circulation. At the same time, the fluorine pump circulation facilitates daily maintenance of the fresh air machine box, and does not increase the installation space of the fresh air unit, which is convenient for the installation and implementation of the project.

[0014] Preferably, the filter assembly includes a first filter and a second filter, and the first filter and the second filter are both installed in the fresh air machine case along the vertical direction, the first filter is installed at the air inlet, and the second filter is installed at the air outlet.

[0015] By adopting the above technical solution, after the outdoor air enters the fresh air machine box from the air inlet, it is first filtered by the first filter, and then flows to the pre-cooling coil, cooling coil and heating coil for heat circulation treatment. The air after heat circulation treatment flows to the air outlet fan, and is blown to the second filter by the air outlet fan. The air filtered by the second filter is discharged into the room from the air outlet.

[0016] The first filter and the second filter are used to perform secondary filtration on the air entering the fresh air machine case, thereby facilitating improving the cleanliness of the air discharged from the fresh air machine case.

[0017] Preferably, the air outlet fan is slidably installed in the fresh air machine casing along the vertical direction.

[0018] By adopting the above technical solution, when the air outlet fan is fixed in the fresh air machine case, when the air discharged from the air outlet fan passes through the second filter for filtering, the filtering area of ​​the second filter is fixed. When the fresh air machine case is used for a long time, the second filter near the middle part has been filtering the air for a long time, which leads to a poor filtering effect, while the second filter near the upper and lower ends has better filtering effect than the middle part because less air passes through. However, since the air outlet fan is fixed in the fresh air machine case, the air blown out by the air outlet fan can only be filtered through the second filter near the middle part. This leads to the middle area where the second filter has a poor filtering effect to always filter the air, while the upper and lower end areas with better filtering effect cannot effectively filter the air, which is not conducive to ensuring the cleanliness of the air discharged into the room under long-term use.

[0019] The air outlet fan is slidably installed in the fresh air machine case in the vertical direction. When the air exhausted by the air outlet fan is filtered through the second filter, the filtering area of ​​the air passing through the second filter can be adjusted by raising and lowering the height of the air outlet fan, thereby effectively avoiding the filtering area of ​​the air by the second filter being fixed, which is beneficial to improving the cleanliness of the air when it is discharged into the room.

[0020] Preferably, a motor is installed on the top of the fresh air fan case, and the driving end of the motor is vertically downward. A first screw rod is installed in the fresh air fan case in a vertical direction. The top of the first screw rod extends upward from the fresh air fan case and is connected to the driving end of the motor. A first lifting seat is sleeved on the circumference of the first screw rod, and the first lifting seat and the first screw rod are threaded together. The first lifting seat is integrally connected to the side wall of the air outlet fan.

[0021] By adopting the above technical solution, when the blower is lifted or lowered, the motor is turned on, and the first screw rod is driven by the motor to rotate. During the rotation process, the first screw rod drives the first lifting seat and the blower to be lifted or lowered synchronously.

[0022] Preferably, the air outlet fan is provided with an adjusting component, and the adjusting component is used to adjust the air outlet angle of the air outlet fan during the upward and downward sliding of the air outlet fan.

[0023] By adopting the above technical solution, since the position of the air outlet is fixed, if the air outlet angle of the fan blade is fixed, when the air outlet fan is raised and lowered, there will be an angle between the air outlet angle on the air outlet fan and the air outlet, which makes it impossible for the air blown out by the air outlet fan to be directly discharged from the air outlet, thereby affecting the air outlet efficiency of the fresh air machine case.

[0024] The air outlet angle of the fan blades on the air outlet fan is set to be adjusted synchronously with the rise and fall of the air outlet fan. This allows the air outlet angle of the air outlet fan to always be aligned with the air outlet, thereby effectively ensuring that the air blown out from the air outlet fan can be directly discharged from the air outlet, which is beneficial to improving the air outlet efficiency of the fresh air machine case.

[0025] Preferably, the inner wall of the fresh air fan housing has multiple groups of drive racks evenly distributed along its length direction, and the multiple groups of drive racks are fixed on the inner wall of the fresh air fan housing in the vertical direction; the adjusting component includes a driving gear, a driving gear, a driven gear, a second screw rod and a second lifting seat, the driving gear is rotatably mounted on the side wall of the air outlet fan, the driving gear and the driving rack are meshed and connected, the driving gear and the driving gear are both vertically arranged, the driving gear and the driving gear are connected by corresponding rotating shafts, the driven gear is horizontally arranged, the driven gear and the driving gear are meshed and connected, the second screw rod is vertically connected to the top of the driven gear, the second lifting seat is sleeved on the circumference of the second screw rod, and the second lifting seat is threadedly connected to the second screw rod, a linkage rod is vertically installed between the ends of the air blades of the air outlet fan, and the linkage rod is integrally connected to the second lifting seat.

[0026] By adopting the above technical solution, specifically when adjusting the air outlet angle of the fan blade, as the fan is lifted up and down, when the driving gear on the fan passes through the driving rack, the driving gear meshes with the corresponding driving rack, and the driving gear rotates. During the rotation of the driving gear, it synchronously drives the driving gear to rotate. The driving gear rotates and meshes with the driven gear, thereby driving the driven gear to rotate. During the rotation of the driven gear, it drives the second screw rod to rotate. When the second screw rod rotates, the second lifting seat is lifted and lowered along the length direction of the second screw rod. During the lifting and lowering process, the second lifting seat synchronously drives the linkage rod to lift and lower, thereby driving the end of the fan blade to lift and lower through the linkage rod. Since the fan blade of the fan is hingedly mounted on the fan, the air outlet angle of the fan blade gradually changes during the lifting and lowering process of the end of the fan blade.

[0027] Specifically, when adjusting the angle of the fan blades, when the fan moves to the bottom of the fresh air machine housing, the air outlet is diagonally above the fan, and the air outlet angle of the fan blades is diagonally upward; when the fan moves to be flush with the air outlet, the air outlet angle is horizontal; when the fan moves to the top of the fresh air machine housing, the air outlet is diagonally below the fan, and the air outlet angle of the fan blades is diagonally downward. This ensures that as the fan is raised and lowered, the air outlet angle of the fan blades can always be aligned with the air outlet, so that the air outlet efficiency of the fan will not be affected during the raising and lowering process.

[0028] Preferably, a connecting block is installed horizontally between the second lifting seat and the linkage rod, a movable groove is opened on the connecting block along its length direction, a movable block is integrally connected to the side wall of the linkage rod, and the movable block is slidably installed in the movable groove.

[0029] By adopting the above technical solution, the second lifting seat drives the linkage rod to be lifted and lowered through the connecting block during the lifting and lowering process, so as to adjust the angle of the fan blades. Since the movement trajectory of the fan blades is in an arc shape during the adjustment of the air outlet angle of the fan blades, and the second lifting seat is lifted and lowered in the vertical direction, in order to effectively avoid the movement interference between the second lifting seat and the movement trajectory of the fan blades, a movable block and a movable groove are added between the two. When the fan blades are adjusted, the movable block slides accordingly in the movable groove, thereby effectively avoiding the movement interference between the second lifting seat and the movement trajectory of the fan blades, which is conducive to ensuring the stability of the adjustment of the fan blade angle.

[0030] In summary, the present application includes at least one of the following beneficial technical effects:

[0031] 1. Compared with the traditional heat exchange method, the heat cycle between the pre-cooling coil and the heating coil can pre-cool the hot air entering the fresh air machine while storing the energy in the hot air in the heating coil for subsequent reheating of the air. This allows the heat cycle between the pre-cooling coil and the heating coil to achieve two effects at the same time:

[0032] 1. Pre-cooling the hot air before the cooling coil cools the hot air, which is beneficial to reduce the energy consumption required by the cooling coil to cool the hot air;

[0033] Second, during pre-cooling, the energy in the hot air is transferred to the heating coil for storage, and this energy is used to heat the air again by the heating coil, thereby saving the energy consumption required for the heating coil to heat the air again;

[0034] 2. When the air outlet fan is fixed in the fresh air machine case, when the air discharged from the air outlet fan passes through the second filter for filtering, the filtering area of ​​the second filter is fixed. When the fresh air machine case is used for a long time, the second filter near the middle part will filter the air for a long time, which will lead to a poor filtering effect. The second filter near the upper and lower ends will have better filtering effects than the middle part because less air passes through them. However, since the air outlet fan is fixed in the fresh air machine case, the air blown out by the air outlet fan can only be filtered through the second filter near the middle part. This leads to the middle area where the second filter has a poor filtering effect and is always filtering the air, while the upper and lower end areas with better filtering effects cannot effectively filter the air, which is not conducive to ensuring the cleanliness of the air discharged into the room under long-term use.

[0035] The air outlet fan is installed in the fresh air machine housing by sliding in the vertical direction. When the air discharged by the air outlet fan passes through the second filter screen for filtering, the filtering area of ​​the air passing through the second filter screen can be adjusted by raising and lowering the height of the air outlet fan, thereby effectively avoiding that the filtering area of ​​the air by the second filter screen is fixed, which is beneficial to improving the cleanliness of the air when it is discharged into the room;

[0036] 3. Since the position of the air outlet is fixed, if the air outlet angle of the fan blade is fixed, when the air outlet fan is raised and lowered, there will be an angle between the air outlet angle on the air outlet fan and the air outlet. This makes it impossible for the air blown out by the air outlet fan to be discharged directly from the air outlet, thereby affecting the air outlet efficiency of the fresh air machine case.

[0037] The air outlet angle of the fan blades on the air outlet fan is set to be adjusted synchronously with the rise and fall of the air outlet fan. This allows the air outlet angle of the air outlet fan to always be aligned with the air outlet, thereby effectively ensuring that the air blown out from the air outlet fan can be directly discharged from the air outlet, which is beneficial to improving the air outlet efficiency of the fresh air machine case. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 It is a schematic diagram of the overall structure of the embodiment of the present application;

[0039] Figure 2 is a structural schematic diagram of an embodiment of the present application specifically showing the positional relationship between the first screw rod, the first lifting seat and the driving rack;

[0040] Figure 3 It is a structural schematic diagram of the embodiment of the present application specifically showing the positional relationship between the driving gear, the driven gear, the second screw rod, the second lifting seat, the linkage rod, the connecting block, the movable groove and the movable block;

[0041] Figure 4is a structural schematic diagram showing the position relationship of the driving gear in the embodiment of the present application;

[0042] Figure 5 This is a structural schematic diagram of an embodiment of the present application specifically showing the positional relationship between the oil storage chamber, the sealing plate, the guide plate and the guide sleeve;

[0043] Figure 6 yes Figure 5 A magnified schematic diagram of center A.

[0044] Figure numerals: 1. fresh air machine casing; 2. air inlet; 3. air outlet; 4. air outlet fan; 5. pre-cooling coil; 6. cooling coil; 7. heating coil; 8. fluorine pump; 9. first filter; 10. second filter; 11. motor; 12. first screw rod; 13. first lifting seat; 14. driving rack; 15. driving gear; 16. driving gear; 17. driven gear; 18. second screw rod; 19. second lifting seat; 20. linkage rod; 21. connecting block; 22. movable groove; 23. movable block; 24. oil storage chamber; 25. oil outlet hole; 26. sealing plate; 27. guide plate; 28. guide sleeve. DETAILED DESCRIPTION

[0045] The following is combined with Figure 1 -Attached Figure 6 , further details of this application are given.

[0046] Embodiment 1:

[0047] The embodiment of the present application discloses a high-efficiency fresh air treatment unit based on fluorine pump heat recovery, referring to Figure 1 and Figure 2 , including a fresh air machine housing 1, the left and right sides of the fresh air machine housing 1 are respectively provided with an air inlet 2 and an air outlet 3, the air inlet 2 is connected to the outside, and the air outlet 3 is connected to the room. The fresh air machine housing 1 is respectively provided with a filter component, a heat exchange component and a humidification component. The filter component is used to filter the air sucked in and discharged from the fresh air machine housing 1 to effectively ensure the cleanliness of the air discharged into the room; the heat exchange component is used to realize the exchange and transfer of heat in the fresh air machine housing 1; and the humidification component is used to humidify the air in the fresh air machine housing 1. At the same time, an exhaust fan 4 is installed in the fresh air machine housing 1, and the air processed by the filter component, the heat exchange component and the humidification component in the fresh air machine housing 1 is discharged from the air outlet 3 to the room through the fan 4. A water collecting pan is installed in the fresh air machine housing 1 in a horizontal direction, and the water collecting pan is located below the pre-cooling coil 5 and the cooling coil 6. The water collecting pan is used to receive the accumulated water in the process of air treatment by the pre-cooling coil 5 and the cooling coil 6, so as to facilitate the subsequent treatment.

[0048] Specifically, refer to Figure 1 and Figure 2The heat exchange component includes a precooling coil 5, a cooling coil 6 and a heating coil 7. The precooling coil 5, the cooling coil 6 and the heating coil 7 are distributed in the fresh air machine case 1 in sequence along the length direction of the fresh air machine case 1. The precooling coil 5 is close to the air inlet 2 of the fresh air machine case 1, the heating coil 7 is close to the air outlet 3 of the fresh air machine case 1, and the cooling coil 6 is located between the precooling coil 5 and the heating coil 7.

[0049] When in use, the outdoor hot air enters the fresh air machine housing 1 from the air inlet 2, and after being filtered by the filter assembly, flows to the pre-cooling coil 5. The pre-cooling coil 5 absorbs the energy in the hot air and transfers it to the heating coil 7 for storage. After being processed by the pre-cooling coil 5, the hot air continues to flow to the cooling coil 6 for cooling. Since part of the energy in the hot air has been absorbed by the pre-cooling coil 5 and transferred to the heating coil 7, when the hot air flows to the cooling coil 6, its temperature will drop, that is, the pre-cooling coil 5 pre-cools the hot air, which is conducive to improving the efficiency of the cooling coil 6 in cooling the hot air. After the hot air is cooled by the cooling coil 6, it flows to the heating coil 7 for reheating. At this time, the energy for the heating coil 7 to reheat the cooled air comes from the energy absorption of the pre-cooling coil 5 on the hot air, which makes it unnecessary to connect an external power supply to heat the heating coil 7 when the heating coil 7 reheats the air, thereby greatly improving the energy utilization efficiency.

[0050] Compared with the traditional heat exchange method, this arrangement can store the energy in the hot air into the heating coil 7 for subsequent reheating of the air while precooling the hot air entering the fresh air machine housing 1 through the heat cycle between the precooling coil 5 and the heating coil 7. This allows the heat cycle between the precooling coil 5 and the heating coil 7 to achieve two effects at the same time:

[0051] 1. Precooling the hot air before the cooling coil 6 cools the hot air, thereby helping to reduce the energy consumption required by the cooling coil 6 to cool the hot air;

[0052] Second, during pre-cooling, the energy in the hot air is transferred to the heating coil 7 for storage, and this energy is used to enable the heating coil 7 to subsequently heat the air again, thereby saving the energy consumption required for the heating coil 7 to heat the air again.

[0053] Furthermore, the present application can transfer heat through the heat cycle between the precooling coil 5, the cooling coil 6 and the heating coil 7, thereby realizing the reheating of the air after cooling and dehumidification, which greatly improves the energy utilization efficiency. At the same time, the present application does not increase the installation space of the fresh air unit, which is convenient for the installation and implementation of the project.

[0054] Specifically, refer to Figure 1 and Figure 2 The precooling coil 5 and the heating coil 7 are connected by a circulation pipeline, and a fluorine pump 8 is added to the pipeline connecting the precooling coil 5 and the heating coil 7. The fluorine pump 8 can use the natural cold source for cooling. When the outdoor hot air flows to the precooling coil 5, the fluorine pump 8 is used to precool the hot air, and the fluorine pump 8 transfers this part of energy to the heating coil 7 for storage, and then the fluorine pump 8 circulates to realize the exchange and transfer of heat between the precooling coil 5 and the heating coil 7. At the same time, the circulation of the fluorine pump 8 facilitates the daily maintenance of the fresh air machine housing 1, and does not increase the installation space of the fresh air unit, which is convenient for the installation and implementation of the project.

[0055] Further, refer to Figure 1 and Figure 2 The filter assembly includes a first filter 9 and a second filter 10. The first filter 9 and the second filter 10 are both installed in the fresh air machine case 1 along the vertical direction. The first filter 9 is installed in the fresh air machine case 1 near the air inlet 2, and the second filter 10 is installed in the fresh air machine case 1 near the air outlet 3. After the outdoor air enters the fresh air machine case 1 from the air inlet 2, it is first filtered by the first filter 9, and then flows to the pre-cooling coil 5, the cooling coil 6 and the heating coil 7 for heat circulation treatment. The air after the heat circulation treatment flows to the outlet fan 4, and is blown to the second filter 10 by the outlet fan 4. The air filtered by the second filter 10 is discharged into the room from the outlet 3.

[0056] The first filter 9 and the second filter 10 are used to perform secondary filtration on the air entering the fresh air machine housing 1, thereby facilitating improving the cleanliness of the air discharged from the fresh air machine housing 1.

[0057] Furthermore, in the embodiment of the present application, the air outlet fan 4 is slidably installed in the fresh air machine case 1 along the vertical direction.

[0058] When the blower 4 is fixed in the fresh air machine case 1, when the air discharged from the blower 4 is filtered through the second filter 10, the filtering area on the second filter 10 is fixed. When the fresh air machine case 1 is used for a long time, the second filter 10 near the middle part has been filtering the air for a long time, which leads to a poor filtering effect, while the second filter 10 near the upper and lower ends has better filtering effect than the middle part because less air passes through the filters. However, since the blower 4 is fixed in the fresh air machine case 1, the air blown out by the blower 4 can only be filtered through the second filter 10 near the middle part. This leads to the middle area of ​​the second filter 10 with poor filtering effect always filtering the air, while the upper and lower end areas with better filtering effect cannot effectively filter the air, which is not conducive to ensuring the cleanliness of the air discharged into the room under long-term use.

[0059] The air outlet fan 4 is slidably installed in the fresh air fan case 1 along the vertical direction. When the air exhausted by the air outlet fan 4 passes through the second filter 10 for filtering, the filtering area of ​​the air passing through the second filter 10 can be adjusted by raising and lowering the height of the air outlet fan 4, thereby effectively avoiding the filtering area of ​​the air by the second filter 10 being fixed, which is beneficial to improving the cleanliness of the air when it is discharged into the room.

[0060] Specifically, refer to Figure 1 and Figure 2 A motor 11 is installed on the top of the fresh air machine housing 1, and the driving end of the motor 11 is vertically downward. A first screw rod 12 is installed in the fresh air machine housing 1 along the vertical direction. The top of the first screw rod 12 extends upward from the fresh air machine housing 1 and is connected to the driving end of the motor 11. A first lifting seat 13 is sleeved around the first screw rod 12, and an internal threaded hole is opened through the first lifting seat 13. The first lifting seat 13 and the first screw rod 12 are threadedly matched through the internal threaded hole, and the first lifting seat 13 is integrally connected to the side wall of the air outlet fan 4.

[0061] Specifically, when the air outlet fan 4 is lifted or lowered, the motor 11 is turned on, and the first screw rod 12 is driven to rotate by the motor 11. During the rotation process, the first screw rod 12 drives the first lifting seat 13 and the air outlet fan 4 to be lifted or lowered synchronously.

[0062] Furthermore, during the process of the air outlet fan 4 being raised and lowered, the air outlet angle of the air blades on the air outlet fan 4 can be adjusted synchronously with the raising and lowering of the air outlet fan 4.

[0063] Since the position of the air outlet 3 is fixed, if the air outlet angle of the fan blade is fixed, when the air outlet fan 4 is raised and lowered, there will be an angle between the air outlet angle on the air outlet fan 4 and the air outlet 3. This makes it impossible for the air blown out by the air outlet fan 4 to be directly discharged from the air outlet 3, thereby affecting the air outlet efficiency of the fresh air machine case 1.

[0064] The air outlet angle of the fan blades on the air outlet fan 4 is set to be adjusted synchronously with the rise and fall of the air outlet fan 4, which makes the air outlet angle of the air outlet fan 4 always aligned with the air outlet 3, thereby effectively ensuring that the air blown out from the air outlet fan 4 can be directly discharged from the air outlet 3, which is beneficial to improving the air outlet efficiency of the fresh air machine case 1.

[0065] Specifically, refer to Figure 2 , Figure 3 as well as Figure 4, the air outlet fan 4 is provided with an adjustment component, and at the same time, a plurality of drive racks 14 are evenly distributed on the inner wall of the fresh air machine housing 1 along its length direction, and these drive racks 14 are welded on the inner wall of the fresh air machine housing 1 in the vertical direction. The adjustment component includes a driving gear 15, a driving gear 16, a driven gear 17, a second screw rod 18 and a second lifting seat 19. The driving gear 15 is rotatably mounted on the side wall of the air outlet fan 4 through a horizontal rotating rod. When the air outlet fan 4 is lifted up and down, the driving gear 15 is meshed and connected with the corresponding driving rack 14. The driving gear 15 and the driving gear 16 are both arranged vertically, and the driving gear 15 and the driving gear 16 are connected by corresponding rotating shafts. The driven gear 17 is arranged horizontally, and the driven gear 17 is meshed and connected with the driving gear 16. The second screw rod 18 is integrally connected with the top of the driven gear 17 in the vertical direction. The second lifting seat 19 is sleeved on the side of the second screw rod 18, and the second lifting seat 19 is threadedly connected with the second screw rod 18. The left and right ends of the fan blades of the fan 4 are connected to the fan 4 through corresponding rotating shafts, and the fan blades are hingedly mounted on the fan 4 using these rotating shafts. A linkage rod 20 is installed between the ends of the fan blades of the fan 4 in the vertical direction, and the linkage rod 20 is integrally connected to the second lifting seat 19.

[0066] Specifically, when adjusting the air outlet angle of the fan blade of the blower 4, as the blower 4 is lifted and lowered, when the driving gear 15 on the blower 4 passes through the driving rack 14, the driving gear 15 meshes with the corresponding driving rack 14, and the driving gear 15 rotates. During the rotation process, the driving gear 15 synchronously drives the driving gear 16 to rotate. The driving gear 16 rotates and meshes with the driven gear 17, thereby driving the driven gear 17 to rotate. During the rotation process, the driven gear 17 drives the second screw rod 18 to rotate. When the second screw rod 18 rotates, the second lifting seat 19 is lifted and lowered along the length direction of the second screw rod 18. During the lifting and lowering process, the second lifting seat 19 synchronously drives the linkage rod 20 to lift and lower, thereby driving the end of the fan blade to lift and lower through the linkage rod 20. Since the fan blade of the blower 4 is hingedly mounted on the blower 4, the air outlet angle of the fan blade of the blower 4 gradually changes during the lifting and lowering process of the end of the fan blade of the blower 4.

[0067] Specifically, when adjusting the angle of the fan blades, when the fan 4 moves to the bottom of the fresh air machine housing 1, the air outlet 3 is obliquely above the fan 4, and the air outlet angle of the fan blades of the fan 4 is obliquely upward; when the fan 4 moves to be flush with the air outlet 3, the air outlet angle is horizontal; when the fan 4 moves to the top of the fresh air machine housing 1, the air outlet 3 is obliquely below the fan 4, and the air outlet angle of the fan blades of the fan 4 is obliquely downward. This ensures that as the fan 4 rises and falls, the air outlet angle of the fan blades of the fan 4 can always be aligned with the air outlet 3, so that the air outlet efficiency of the fan 4 will not be affected during the process of the fan 4 rising and falling.

[0068] Further, refer to Figure 3 and Figure 4 A connecting block 21 is installed between the second lifting seat 19 and the linkage rod 20 in the horizontal direction, and the second lifting seat 19 and the linkage rod 20 are connected by the connecting block 21. A movable groove 22 is opened on the connecting block 21 along its length direction, and a movable block 23 is integrally connected to the side wall of the linkage rod 20, and the movable block 23 is slidably installed in the movable groove 22.

[0069] The second lifting seat 19 drives the linkage rod 20 to lift and lower through the connecting block 21 during the lifting and lowering process, so as to adjust the angle of the fan blades of the blower 4. Since the moving track of the fan blades of the blower 4 is in an arc shape during the adjustment of the air outlet angle of the fan blades of the blower 4, and the second lifting seat 19 is lifted and lowered in the vertical direction, in order to effectively avoid the second lifting seat 19 and the moving track of the fan blades of the blower 4 from interfering with each other, an active block 23 and an active groove 22 are provided between the two. When the fan blades of the blower 4 are being adjusted, the active block 23 slides in the active groove 22 accordingly, thereby effectively avoiding the moving track of the second lifting seat 19 and the fan blades of the blower 4 from interfering with each other, which is beneficial to ensure the stability of the adjustment of the angle of the fan blades of the blower 4.

[0070] The implementation principle of the high-efficiency fresh air treatment unit based on fluorine pump heat recovery in the embodiment of the present application is:

[0071] When in use, the outdoor hot air enters the fresh air machine housing 1 from the air inlet 2, and after being filtered by the filter assembly, flows to the pre-cooling coil 5. The pre-cooling coil 5 absorbs the energy in the hot air and transfers it to the heating coil 7 for storage. After being processed by the pre-cooling coil 5, the hot air continues to flow to the cooling coil 6 for cooling. Since part of the energy in the hot air has been absorbed by the pre-cooling coil 5 and transferred to the heating coil 7, when the hot air flows to the cooling coil 6, its temperature will drop, that is, the pre-cooling coil 5 pre-cools the hot air, which is conducive to improving the efficiency of the cooling coil 6 in cooling the hot air. After the hot air is cooled by the cooling coil 6, it flows to the heating coil 7 for reheating. At this time, the energy for the heating coil 7 to reheat the cooled air comes from the energy absorption of the pre-cooling coil 5 on the hot air, which makes it unnecessary to connect an external power supply to heat the heating coil 7 when the heating coil 7 reheats the air, thereby greatly improving the energy utilization efficiency.

[0072] Compared with the traditional heat exchange method, this setting method can pre-cool the hot air entering the fresh air machine case 1 through the heat circulation between the pre-cooling coil 5 and the heating coil 7, and store the energy in the hot air in the heating coil 7 so as to heat the air again later.

[0073] Embodiment 2:

[0074] The difference between the embodiment of the present application and embodiment 1 is that:

[0075] A lubrication mechanism is added to the driving rack 14. During the meshing process of the driving gear 15 and the corresponding driving rack 14, the lubrication mechanism can lubricate the driving gear 15 and the driving rack 14. The lubrication mechanism can automatically lubricate the driving gear 15 and the driving rack 14, which makes it possible for the meshing operation between the driving gear 15 and the driving rack 14 and the lubrication between the two to be carried out simultaneously, thereby significantly improving the efficiency of the operation of the driving gear 15 and the driving rack 14.

[0076] Reference Figure 3 , Figure 5 as well as Figure 6 The lubrication mechanism includes multiple groups of lubrication components. The interior of the driving rack 14 is hollow, and the chamber inside the driving rack 14 is set as an oil storage chamber 24. These lubrication components are arranged in the oil storage chamber 24 of the driving rack 14 and are distributed at the bottom of the tooth groove of the driving rack 14.

[0077] The lubrication assembly includes an oil outlet 25, a sealing plate 26, a guide plate 27 and a guide sleeve 28. The oil outlet 25 is provided at the bottom of the tooth groove of the driving rack 14, and the oil outlet 25 is connected with the corresponding driving rack 14. The sealing plate 26 is located in the driving rack 14, and the sealing plate 26 is slidably installed in the driving rack 14. The sealing plate 26 is used to seal or open the oil outlet 25. The guide sleeve 28 is arranged in the driving rack 14 along the vertical direction, and one end of the guide sleeve 28 is integrally connected to the inner wall of the driving rack 14, and the other end of the guide sleeve 28 is open. One end of the guide plate 27 is integrally connected to the sealing plate 26, and the other end of the guide plate 27 extends into the guide sleeve 28. During the sliding process of the sealing plate 26, the guide plate 27 and the guide sleeve 28 guide the corresponding sealing plate 26, thereby effectively ensuring the stability and accuracy of the sliding of the sealing plate 26.

[0078] A return spring is installed between the guide sleeve 28 and the guide plate 27, and the return spring is used to stably return the sealing plate 26.

[0079] Specifically, during lubrication, when the driving gear 15 is not meshed with the driving rack 14, the sealing plate 26 is sealed at the oil outlet 25 on the driving rack 14. In this state, the lubricating oil of the driving rack 14 cannot flow out from the inside.

[0080] When the driving gear 15 is meshed and connected with the driving rack 14, after the teeth on the driving gear 15 are inserted into the tooth grooves on the driving rack 14, the sealing plate 26 located at the tooth groove inside the corresponding driving rack 14 slides in the direction away from the teeth of the driving gear 15. In this state, when the sealing plate 26 slides in the direction away from the teeth of the driving gear 15, the oil outlet hole 25 on the driving rack 14 is in an open state, and the lubricating oil in the driving rack 14 flows out from the corresponding oil outlet hole 25 to the teeth of the driving gear 15, thereby lubricating the driving gear 15 and the driving rack 14.

[0081] With this arrangement, lubricating oil will flow out from the inside of the driving rack 14 to the teeth of the driving gear 15 only when the teeth on the driving gear 15 are engaged with the tooth grooves of the driving rack 14. If the driving gear 15 is not engaged with the driving rack 14, the sealing plate 26 at the non-engaged portion seals the oil outlet 25, that is, the non-engaged portion cannot be lubricated.

[0082] This setting method can accurately control the lubricated parts between the driving gear 15 and the driving rack 14, that is, the meshing parts of the two will be lubricated, and the non-meshing parts will not be lubricated. Therefore, it can effectively avoid the waste of lubricating oil, and can also accurately control the lubricated parts of the two. At the same time, this lubrication method needs to be carried out during the driving process of the driving gear 15 and the driving rack 14, that is, the operation of the driving gear 15 and the driving rack 14 and the lubrication between the two can be carried out at the same time, which can significantly improve the efficiency of the operation of the driving gear 15 and the driving rack 14. At the same time, it effectively avoids the phenomenon of insufficient lubrication or excessive lubrication between the driving gear 15 and the driving rack 14.

[0083] Specifically, the sealing plate 26 is made of magnets, and the teeth of the driving gear 15 are coated with magnetic materials, and the magnetic materials of the sealing plate 26 and the magnetic materials on the teeth of the driving gear 15 repel each other. This makes it possible for the corresponding sealing plate 26 to slide away from the teeth of the driving gear 15 when the teeth of the driving gear 15 are inserted into the driving rack 14, thereby opening the oil outlet 25 at the corresponding position. When the teeth on the driving gear 15 are disengaged from the corresponding tooth grooves, the sealing plate 26 is reset to the oil outlet 25 to reseal the oil outlet 25.

[0084] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. High-efficiency fresh air treatment unit based on fluorine pump heat recovery, characterized by: The invention comprises a fresh air machine housing (1), wherein the fresh air machine housing (1) is provided with an air inlet (2) and an air outlet (3) on the left and right sides respectively, wherein the air inlet (2) is connected to the outside, and the air outlet (3) is connected to the inside of the room, wherein the fresh air machine housing (1) is provided with a filter component, a heat exchange component and a humidification component respectively, wherein the filter component is used for filtering the air sucked in and discharged from the fresh air machine housing (1), the heat exchange component is used for realizing the exchange and transfer of heat in the fresh air machine housing (1), and the humidification component is used for humidifying the air in the fresh air machine housing (1), and an exhaust fan (4) is installed in the fresh air machine housing (1); The heat exchange component comprises a precooling coil (5), a cooling coil (6) and a heating coil (7); the precooling coil (5), the cooling coil (6) and the heating coil (7) are sequentially spaced apart in the fresh air machine housing (1) along the length direction of the fresh air machine housing (1); the precooling coil (5) is close to the air inlet (2), the heating coil (7) is close to the air outlet (3), and the cooling coil (6) is located between the precooling coil (5) and the heating coil (7); The air outlet fan (4) is slidably installed in the fresh air machine housing (1) along the vertical direction; A motor (11) is installed on the top of the fresh air machine housing (1), the driving end of the motor (11) is vertically downward, a first screw rod (12) is installed in the fresh air machine housing (1) along the vertical direction, the top of the first screw rod (12) extends upward out of the fresh air machine housing (1) and is connected to the driving end of the motor (11), a first lifting seat (13) is sleeved on the circumference of the first screw rod (12), the first lifting seat (13) and the first screw rod (12) are threadedly matched, and the first lifting seat (13) is integrally connected to the side wall of the air outlet fan (4); The air outlet fan (4) is provided with an adjustment component, and the adjustment component is used to adjust the air outlet angle of the air outlet fan (4) during the process of the air outlet fan (4) sliding up and down; The inner wall of the fresh air machine housing (1) is provided with a plurality of groups of driving racks (14) spaced evenly along its length direction, and the plurality of groups of driving racks (14) are fixed on the inner wall of the fresh air machine housing (1) in a vertical direction; the adjustment component comprises a driving gear (15), a driving gear (16), a driven gear (17), a second screw rod (18) and a second lifting seat (19); the driving gear (15) is rotatably mounted on the side wall of the air outlet fan (4); the driving gear (15) and the driving rack (14) are meshed and connected; the driving gear (15) and the driving gear (16) are both arranged vertically; the driving gear (15) and the driving rack (14) are arranged vertically; the driving gear (15) and the driving gear (16) are arranged vertically; the driving gear (15) and the driving rack (14 ... The wheel (15) and the driving gear (16) are connected via corresponding rotating shafts; the driven gear (17) is arranged horizontally; the driven gear (17) and the driving gear (16) are meshed and connected; the second screw rod (18) is connected integrally with the top of the driven gear (17) in a vertical direction; the second lifting seat (19) is sleeved on the circumference of the second screw rod (18); the second lifting seat (19) and the second screw rod (18) are connected by threads; a linkage rod (20) is installed between the ends of the fan blades of the air outlet fan (4) in a vertical direction; the linkage rod (20) and the second lifting seat (19) are connected integrally.

2. The high-efficiency fresh air treatment unit based on fluorine pump heat recovery according to claim 1 is characterized in that: A fluorine pump (8) is provided on the pipeline communicating between the precooling coil (5) and the heating coil (7).

3. The high-efficiency fresh air treatment unit based on fluorine pump heat recovery according to claim 2 is characterized in that: The filter assembly comprises a first filter (9) and a second filter (10), wherein the first filter (9) and the second filter (10) are both installed in the fresh air machine housing (1) in a vertical direction, wherein the first filter (9) is installed at the air inlet (2), and the second filter (10) is installed at the air outlet (3).

4. The high-efficiency fresh air treatment unit based on fluorine pump heat recovery according to claim 3 is characterized in that: A connecting block (21) is installed between the second lifting seat (19) and the linkage rod (20) in the horizontal direction, and a movable groove (22) is provided on the connecting block (21) along its length direction. A movable block (23) is integrally connected to the side wall of the linkage rod (20), and the movable block (23) is slidably installed in the movable groove (22).

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