Passive building waste heat recovery system

Abstract

The invention belongs to the technical field of building waste heat recovery, and particularly discloses a passive building waste heat recovery system which comprises a main waste heat recovery mechanism and an auxiliary waste heat recovery mechanism, the auxiliary waste heat recovery mechanism comprises an adjustable solar panel arranged on a passive building, and an auxiliary recovery structure is arranged on the back face of the solar panel; the main waste heat recovery mechanism comprises a waste heat recovery pipeline laid in the passive building, and the waste heat recovery pipeline is matched with an indoor room of the passive building through a waste heat recovery branch pipe; heat generated by the solar panel is recycled through the auxiliary waste heat recycling mechanism, the solar panel is cooled, heat generated in a passive building is recycled through the main waste heat recycling mechanism, and meanwhile high-temperature airflow containing impurities, peculiar smells and the like in a flue of the passive building is treated; impurities, peculiar smells and the like carried by high-temperature airflow in the flue are prevented from affecting all indoor rooms of the passive building, and cleanliness and safety of waste heat recovery are guaranteed.

Description

Technical Field

[0001] The invention belongs to the technical field of building waste heat recovery, and in particular relates to a passive building waste heat recovery system. Background Art

[0002] Passive House is an architectural concept that uses energy efficiently, achieving energy conservation and environmental protection mainly through the structure and design of the building itself; it reduces energy consumption through efficient thermal insulation, and uses solar energy and heat dissipation from home appliances to provide heat sources for the living room; Passive House emphasizes the use of natural lighting, fresh air systems and clean energy, aiming to achieve a comfortable indoor environment without relying on traditional heating equipment.

[0003] Existing passive buildings mostly utilize solar energy and geothermal resources, but ignore the recycling of indoor waste heat in passive buildings. Especially when heating the indoor space of passive buildings, the indoor waste heat of passive buildings is wasted. When heating, continuous heating in passive buildings will lead to a large amount of energy consumption, affecting the energy utilization efficiency of passive buildings.

[0004] In addition, the flue of a passive building is a pipe used to remove kitchen gas or bathroom exhaust gas. The gas exhausted from the kitchen and bathroom will carry a large amount of heat, but because the kitchen gas contains a large amount of oil, dust and odor, and the bathroom exhaust gas contains a large amount of steam and odor, when the waste heat in the flue is recovered, the waste heat will carry impurities and odors such as oil, dust, steam contained in the kitchen and bathroom, which will not only cause corrosion to the waste heat recovery pipe, but also have a serious impact on the indoor air quality of the passive building.

[0005] The Chinese patent with the authorization announcement number CN112460702B discloses a passive building, including a house, a solar collector, a heat exchange tube, and an underground temperature control device; the house includes a steel structure frame and a panel, and the panel covers both sides of the steel structure frame; the solar collector is arranged on the roof of the house. The heat exchange tube is arranged in a snake shape in the middle of the panel. The underground temperature control device is buried underground and includes a lifting channel, and the side wall of the lifting channel is recessed with an inspection channel and a pipeline channel, and the bottom of the side wall of the lifting channel is recessed with a heat exchange assembly placement platform. A serpentine heat exchange plate, a heat exchanger and a first pipeline pump are arranged inside the heat exchange assembly placement platform, and the serpentine heat exchange plate is attached to the inner wall of the heat exchange assembly placement platform; the invention utilizes the temperature difference between the deep soil and the interior of the house to exchange heat and cold, thereby cooling the interior of the building in summer; at the same time, a temperature storage device is used to store the excess heat energy collected by solar energy during the day, and when the sunshine is insufficient, this part of heat energy is released to heat the interior of the building; the passive building reduces the energy consumption of the passive building by utilizing solar energy and exchanging heat with the deep soil, but the application cannot recover the waste heat generated in the passive building, resulting in the waste heat in the passive building being wasted, affecting the energy utilization efficiency of the passive building. Summary of the invention

[0006] Based on the above problems, a passive building waste heat recovery system is provided to ensure the cleanliness of waste heat recovery.

[0007] Based on the above purpose, the present invention is achieved through the following technical solutions: A waste heat recovery system for a passive building comprises a main waste heat recovery mechanism and an auxiliary waste heat recovery mechanism, wherein the auxiliary waste heat recovery mechanism comprises an adjustable solar panel arranged on the passive building, and an auxiliary recovery structure is arranged on the back of the solar panel; the main waste heat recovery mechanism comprises a waste heat recovery pipeline laid in the passive building, and the waste heat recovery pipeline is matched with the indoor room of the passive building through a waste heat recovery branch pipe.

[0008] Preferably, a recovery and processing structure is provided on the waste heat recovery pipeline; a main recovery structure cooperating with the indoor room of the passive building and a pretreatment structure connected to the flue of the passive building are provided on the waste heat recovery branch pipe, and the main recovery structure includes an inwardly concave curved groove arranged on the ceiling of the indoor room of the passive building, and a waste heat collection hole is arranged in the inwardly concave curved groove, and the waste heat collection hole is connected to the waste heat recovery branch pipe through a waste heat collection cavity arranged on the inwardly concave curved groove.

[0009] Preferably, the pretreatment structure includes a horizontal pretreatment pipe connected to the flue and the waste heat recovery branch pipe of the passive building, one end of the horizontal pretreatment pipe away from the flue and the waste heat recovery branch pipe is connected to the waste heat recovery pipeline, and a sinking treatment pipe is provided on the horizontal pretreatment pipe; an angle-adjustable air inlet baffle is provided on one side of the sinking treatment pipe, and a detachable drying plate is provided on the other side; at least two fan ring sinking holes are provided on the sinking treatment pipe, and detachable pretreatment plates are provided in the fan ring sinking holes, and the pretreatment plates are staggered in the sinking treatment pipe, and at least one pretreatment plate is staggered with the sinking treatment pipe. The inner wall of the treatment pipe is connected; an air inlet shaft is provided on the air inlet baffle, and the air inlet shaft cooperates with the air inlet motor arranged on the sinking treatment pipe; an arc-shaped air inlet plate symmetrical along the air inlet shaft is provided on the air inlet baffle, and a spherical ball is provided on the arc-shaped air inlet plate to cooperate with the sinking treatment pipe; a pretreatment cavity is provided on the pretreatment plate, a pretreatment filter is provided in the pretreatment cavity, an S-shaped air duct connected with the air inlet side of the pretreatment plate is provided in the pretreatment cavity, and the S-shaped air duct cooperates with the pretreatment filter; a pretreatment air pipe cooperating with the pretreatment filter is provided on the pretreatment plate.

[0010] Preferably, the recovery and processing structure includes a recovery and processing sleeve mounted on the waste heat recovery pipeline, a recovery and processing fan is arranged in the recovery and processing sleeve, a recovery processor is arranged on the side of the recovery and processing fan close to the waste heat recovery branch pipe, the recovery processor cooperates with the recovery and processing sleeve which is detachably mounted on the waste heat recovery pipeline and cooperates with the recovery and processing sleeve, a detachable recovery and processing pipe is arranged on the recovery and processing sleeve, and a detachable recovery and processing chamber is connected to the bottom end of the recovery and processing pipe; the bottom side surface of the recovery and processing sleeve is a conical side surface which cooperates with the recovery processor; the recovery and processing sleeve is connected to the recovery and processing sleeve through an arc-shaped guide surface.

[0011] Preferably, the recovery processor includes an elliptical processing ring arranged in the recovery processing sleeve and matched with the recovery processing sleeve, the bottom end of the elliptical processing ring is inclined toward the recovery processing sleeve side, and a circular processing disk is arranged in the elliptical processing ring, and the circular processing disk is matched with the processing ring groove arranged on the inner side of the elliptical processing ring; the inner diameter of the waste heat recovery pipe is smaller than the inner diameter of the recovery processing sleeve, and a guide surface is provided at the connection between the waste heat recovery pipe and the recovery processing sleeve.

[0012] Preferably, the circular processing disk includes a processing shaft rotatably connected to the recovery processing sleeve through a processing bearing, a processing filter is provided on the processing shaft, a processing ring plate is provided on the outer periphery of the processing filter, and the processing ring plate is connected to the processing shaft through a processing support rod arranged on the side of the processing filter away from the recovery processing sleeve; curved filter grooves matching the processing support rod are symmetrically arranged on the processing filter; the processing shaft cooperates with the processing motor arranged in the recovery processing sleeve; the mesh number of the processing filter is greater than the mesh number of the pre-treatment filter; a U-shaped adsorption chamber is provided on the side of the recovery processing sleeve away from the recovery processing sleeve, and a detachable U-shaped tube is provided on the U-shaped adsorption chamber, and the detachable U-shaped tube is filled with adsorption material.

[0013] Preferably, a cleaning sleeve is sleeved on the processing shaft and is rotatably connected to the processing shaft through a cleaning bearing, a pressurized cleaning tube is provided at the bottom end of the cleaning sleeve, and a plurality of pressurized cleaning nozzles cooperating with the processing filter are provided on the side of the pressurized cleaning tube at an angle downward, the pressurized cleaning nozzle comprises a cleaning branch tube connected to the pressurized cleaning tube, a conical cleaning nozzle is provided at one end of the cleaning branch tube away from the pressurized cleaning tube, and the conical cleaning nozzle cooperates with cleaning rollers arranged on both sides of the cleaning branch tube; a cleaning shaft connected to the center of the cleaning roller is horizontally placed in the cleaning branch tube, a cleaning ball cooperating with the inner diameter of the cleaning branch tube is provided on the cleaning shaft, and a liquid guide groove cooperating with the conical cleaning nozzle is provided on one side of the cleaning ball; the cleaning sleeve is connected to the recovery processing sleeve through a sleeve support rod.

[0014] Preferably, hollow cleaning brushes are evenly distributed on both sides of the processing ring groove, and the hollow cleaning brushes are connected to the pressurized cleaning chamber arranged in the processing ring groove. The hollow cleaning brush includes a hollow brush body, and a brush ring with a clearance fit is sleeved on the hollow brush body. The brush rings are connected by annular bristles, and the annular bristles are provided with cleaning brush holes connected to the hollow brush body; the brush ring is provided with a pressurized brush hole connected to the hollow brush body; a negative pressure processing chamber is provided in the elliptical processing ring, and the negative pressure processing chamber cooperates with the negative pressure motor arranged on the recovery processing tube through a negative pressure processing tube.

[0015] Preferably, the auxiliary recovery structure includes an auxiliary waste heat shell arranged on the back of the solar panel, and a spiral channel is provided in the auxiliary waste heat shell; liquid inlet pipes connected to the spiral channel are symmetrically arranged on the auxiliary waste heat shell, and a liquid outlet pipe connected to the spiral channel is provided at the center of the auxiliary waste heat shell.

[0016] Preferably, capillary guide grooves are distributed in the spiral channel, and arc-shaped protrusions with clearance fit are evenly distributed at the upper and lower ends of the spiral channel; a check valve is provided in the spiral channel; the liquid outlet pipe is connected to the spiral insulation pipe spirally sleeved on the waste heat recovery pipe, and insulation cotton is laid on the spiral insulation pipe.

[0017] Compared with the prior art, the present invention has the following beneficial effects: (1) The present invention recovers the waste heat generated by the passive building through the main waste heat recovery mechanism and the auxiliary waste heat recovery mechanism, recovers the heat generated by the solar panel through the auxiliary waste heat recovery mechanism, and cools the solar panel to maintain the power generation efficiency of the solar panel, recovers the heat generated indoors in the passive building through the main waste heat recovery mechanism, and at the same time processes the high-temperature airflow containing impurities and odors in the flue of the passive building to prevent the impurities and odors carried by the high-temperature airflow in the flue from affecting the various indoor rooms of the passive building, thereby ensuring the cleanliness and safety of the waste heat recovery, preventing the recovered waste heat from affecting the various indoor rooms of the passive building, and ensuring the cleanliness of the various indoor rooms of the passive building; the use of this waste heat recovery system can further reduce the heat loss of the passive building, improve the heat utilization efficiency of the passive building, and prevent the recovered waste heat from affecting the indoor air quality of the passive building.

[0018] (2) The main waste heat recovery mechanism recovers the waste heat of each indoor room in the passive building through the waste heat recovery pipeline to avoid heat loss and waste. The waste heat recovery pipeline is connected to the main recovery structure of each indoor room through the waste heat recovery branch pipe and connected to the flue through the pretreatment structure. The waste heat in the indoor rooms of the passive building is recovered and transferred through the main recovery structure. The impurities and odors such as oil, dust, steam, etc. in the flue are treated through the pretreatment structure to ensure the cleanliness of the recovered waste heat and prevent the recovered heat from being mixed with impurities and odors, which will affect the normal use of the recovered waste heat in the indoor rooms of the passive building. The main recovery structure is convenient for waste heat collection by installing an inward-concave curved groove on the ceiling of the indoor room of the passive building. The waste heat in the inward-concave curved groove is transferred to the waste heat collection cavity through the waste heat collection hole, which is convenient for recovery and use through the waste heat recovery branch pipe.

[0019] (3) A pretreatment structure is used to pretreat the odor, oil, dust and other impurities in the flue of the passive building, thereby preliminarily reducing the impurity content of the waste heat in the flue, preventing the odor and impurities from affecting the quality of waste heat recovery, and preventing impurities such as oil, dust and other impurities from re-entering the indoor rooms of the passive building and causing damage to the indoor rooms of the passive building; the pretreatment structure guides the flow of waste heat in the flue through a horizontal pretreatment pipe, and preliminarily treats the impurities and odor therein through the pretreatment plate in the sinking hole of the fan ring on the sinking treatment pipe, thereby reducing the content of impurities and odor in the waste heat, reducing the erosion of impurities and odor on the waste heat recovery pipeline, and facilitating the further treatment of impurities and odor in the waste heat by the recovery treatment structure.

[0020] (4) The recovery and treatment structure filters and treats the impurities in the flue waste heat through the recovery treatment device in the recovery treatment sleeve to prevent the impurities in the flue waste heat from having a negative impact on the indoor air of the passive building, thereby ensuring the indoor air quality of the passive building; the recovery and treatment sleeve collects and treats the impurities cleaned by the recovery treatment device through the recovery treatment tube and the recovery treatment cavity to prevent the impurities from entering the waste heat recovery pipeline again. The detachable design facilitates the cleaning of the impurities inside it, and the cleaning process does not affect the filtering treatment of the impurities in the waste heat recovery pipeline.

[0021] (5) The recycling processor designs an inclined elliptical processing ring in the recycling processing sleeve, and installs a circular processing disk in the elliptical processing ring to filter impurities in the waste heat, thereby preventing impurities from flowing into the passive building room and affecting the indoor air quality of the passive building; the circular processing disk is installed in the processing ring groove on the inner side of the elliptical processing ring, thereby forming a good waste heat filtering structure, which can effectively prevent impurities in the waste heat recovery process from re-entering the passive building room and affecting the indoor air quality of the passive building; the inner diameter of the waste heat recovery pipeline is smaller than the inner diameter of the recycling processing sleeve, which is convenient for collecting and processing impurities in the circular processing disk.

[0022] (6) The circular treatment disc filters the impurities contained in the waste heat in the flue through the treatment filter, preventing the impurities in the waste heat in the flue from corroding the waste heat recovery pipeline and preventing the waste heat in the flue from affecting the indoor air quality of the passive building; the treatment ring plate is connected to the treatment shaft through the treatment support rod, which can not only enhance the strength of the circular treatment disc, but also prevent the treatment filter from being deformed due to the temperature of the waste heat, and prevent the impurities in the flue waste heat from flowing into the indoor of the passive building along the gap between the treatment filter and the recovery treatment sleeve; the curved filter groove facilitates the gathering of impurities on the treatment filter, and facilitates the negative pressure adsorption and collection of impurities; the treatment motor drives the treatment ring plate and the treatment filter to rotate through the treatment shaft, which is convenient for cleaning the impurities on the treatment filter.

[0023] (7) The processing filter is pressurized and cleaned by using a pressurized cleaning pipe through a pressurized cleaning nozzle, thereby cleaning the impurities on the processing filter, and gradually cleaning the impurities on the processing filter to the processing ring plate, thereby cleaning the impurities on the processing filter into the elliptical processing ring, and adsorbing the impurities into the recovery processing chamber through negative pressure, thereby completing the cleaning of the impurities on the processing filter.

[0024] (8) The hollow cleaning brush is connected to the pressurized cleaning chamber in the treatment ring groove, so that the impurities on the treatment filter can be cleaned by pressurized air or liquid flow, thereby ensuring the filtering effect of the treatment filter and preventing impurities from re-entering the indoor rooms of the passive building; the negative pressure motor generates a negative pressure effect through the negative pressure treatment chamber, and negatively absorbs the impurities cleaned from the treatment filter to prevent the impurities from adhering to the treatment filter again. At the same time, negative pressure is applied to the impurities near the treatment filter to reduce the probability of the treatment filter being blocked.

[0025] (9) The auxiliary recovery structure recycles the heat on the back of the solar panel and can effectively neutralize the heat generated by the solar panel during the power generation process, thereby reducing the temperature of the solar panel, ensuring that the solar panel can generate electricity stably and continuously for a long time, and improving the production efficiency of the solar panel; the auxiliary recovery structure carries the flowing liquid through the auxiliary waste heat shell, and the liquid flows symmetrically along the liquid inlet pipe into the auxiliary waste heat shell, converges to the center of the auxiliary waste heat shell through the spiral channel, and flows out of the auxiliary waste heat shell along the liquid outlet pipe, thereby quickly reducing the temperature of the solar panel.

[0026] (10) The capillary guide groove in the spiral channel can increase the contact area between the liquid flow and the solar panel, and can cause turbulence in the liquid flow in the spiral channel, thereby quickly transferring the heat on the solar panel to the liquid flow, and then quickly reducing the temperature of the solar panel, achieving the purpose of rapid cooling and waste heat recovery; the check valve prevents the diversion of the liquid flow; the liquid flow after waste heat recovery and temperature increase is wrapped around the waste heat recovery pipe through the spiral insulation pipe, heating and insulating the waste heat recovery pipe, facilitating the utilization of waste heat; the insulation cotton further increases the insulation effect of the recovered waste heat, facilitating the reuse of the recovered waste heat.

[0027] In summary, the present invention recovers the waste heat generated by passive buildings through the main waste heat recovery mechanism and the auxiliary waste heat recovery mechanism, and can realize the recovery of solar panel waste heat and passive building indoor waste heat. By recovering the waste heat of passive buildings, the recycling of heat of passive buildings is met, the dependence of passive buildings on external energy is reduced, and the energy-saving ability of passive buildings is improved. In the process of waste heat recovery of passive buildings, the present invention can process the recovered waste heat, thereby reducing impurities and odors in the waste heat, ensuring the cleanliness and safety of the waste heat, preventing the recovered waste heat from affecting the indoor air quality of passive buildings, preventing impurities in the waste heat from contaminating the indoor rooms of passive buildings, ensuring the cleanliness of each indoor room of the passive building, and realizing the safe recovery and use of waste heat of passive buildings. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the structure of the present invention in Example 1; Figure 2 is a schematic structural diagram of the pretreatment structure in Example 1; Figure 3 is a schematic structural diagram of the recycling and processing structure in Example 1; Figure 4 is a schematic diagram of the internal structure of the recycling and processing structure in Example 1; Figure 5 is a schematic diagram of the structure of the recycling processor in Example 1; Figure 6 is a schematic structural diagram of the elliptical processing ring in Example 1; Figure 7 is a schematic diagram of the front structure of the recycling processor in Example 1; Figure 8 is a schematic structural diagram of the hollow cleaning brush in Example 1; Fig. 9 is a schematic structural diagram of the auxiliary recovery structure in Example 1; Fig.10 It is a schematic cross-sectional view of the spiral channel in Example 1.

[0029] In the figure, passive building 1, flue 2, pretreatment structure 3, waste heat recovery pipeline 4, solar panel 5, auxiliary recovery structure 6, horizontal pretreatment pipe 301, air inlet baffle 302, fan ring sink hole 303, sinking treatment pipe 304, pretreatment plate 305, drying plate 306, recovery treatment sleeve 401, recovery treatment sleeve 402, recovery treatment pipe 403, negative pressure motor 404, recovery treatment chamber 405, recovery processor 406, recovery Processing fan 407, processing shaft 408, cleaning sleeve 409, processing filter 410, elliptical processing ring 411, processing support rod 412, processing ring plate 413, curved filter groove 414, pressurized cleaning pipe 415, processing ring groove 416, cleaning bearing 417, hollow cleaning brush 418, auxiliary waste heat shell 601, capillary guide groove 602, liquid inlet pipe 603, spiral channel 604, liquid outlet pipe 605, arc-shaped protrusion 606. DETAILED DESCRIPTION

[0030] The present invention is further described below by means of specific examples, but the scope of the present invention is not limited thereto.

[0031] Example 1 A passive building waste heat recovery system, the structure of which is as follows Figure 1-10 As shown, Figure 5 , 6 The hollow cleaning brush 418 is not shown, which includes a main waste heat recovery mechanism and an auxiliary waste heat recovery mechanism. The auxiliary waste heat recovery mechanism includes an adjustable solar panel 5 arranged on the passive building 1, and an auxiliary recovery structure 6 is provided on the back of the solar panel 5; the main waste heat recovery mechanism includes a waste heat recovery pipeline 4 laid in the passive building 1, and the waste heat recovery pipeline 4 is coordinated with the indoor room of the passive building 1 through a waste heat recovery branch pipe.

[0032] A recovery and processing structure is provided on the waste heat recovery pipeline 4; a main recovery structure matching the indoor room of the passive building 1 and a pretreatment structure 3 connected to the flue 2 of the passive building 1 are provided on the waste heat recovery branch pipe; the main recovery structure includes an inwardly concave curved groove arranged on the ceiling of the indoor room of the passive building 1, and a waste heat collection hole is arranged in the inwardly concave curved groove, and the waste heat collection hole is connected to the waste heat recovery branch pipe through a waste heat collection cavity arranged on the inwardly concave curved groove.

[0033] The pretreatment structure 3 includes a horizontal pretreatment pipe 301 connected to the flue 2 and the waste heat recovery branch pipe of the passive building 1. One end of the horizontal pretreatment pipe 301 away from the flue 2 and the waste heat recovery branch pipe is connected to the waste heat recovery pipeline 4. A sinking treatment pipe 304 is provided on the horizontal pretreatment pipe 301; an angle-adjustable air inlet baffle 302 is provided on one side of the sinking treatment pipe 304, and a detachable drying plate 306 is provided on the other side; at least two fan ring sinking holes 303 are provided on the sinking treatment pipe 304, and a detachable pretreatment plate 305 is provided in the fan ring sinking hole 303, and the pretreatment plate 305 is staggered in the sinking treatment pipe 304.

[0034] The recovery and processing structure includes a recovery and processing sleeve 402 which is sleeved on the waste heat recovery pipeline 4, a recovery and processing fan 407 is arranged in the recovery and processing sleeve 402, a recovery processor 406 is arranged on the side of the recovery and processing fan 407 close to the waste heat recovery branch pipe, and the recovery processor 406 cooperates with a recovery and processing sleeve 401 which is detachably mounted on the waste heat recovery pipeline 4 and cooperates with the recovery and processing sleeve 402, a detachable recovery and processing tube 403 is arranged on the recovery and processing sleeve 401, and a detachable recovery and processing tube 403 is connected to the bottom end of the recovery and processing tube 403 with a detachable recovery and processing chamber 405.

[0035] The recovery processor 406 includes an elliptical processing ring 411 arranged in the recovery processing sleeve 402 and matched with the recovery processing sleeve 401. The bottom end of the elliptical processing ring 411 is inclined toward the side of the recovery processing sleeve 401. A circular processing disk is arranged in the elliptical processing ring 411, and the circular processing disk is matched with the processing ring groove 416 arranged on the inner side of the elliptical processing ring 411; the inner diameter of the waste heat recovery pipe 4 is smaller than the inner diameter of the recovery processing sleeve 401, and a guide surface is arranged at the connection between the waste heat recovery pipe 4 and the recovery processing sleeve 401.

[0036] The circular processing disk includes a processing shaft 408 rotatably connected to the recovery processing sleeve 402 through a processing bearing, a processing filter 410 is provided on the processing shaft 408, a processing ring plate 413 is provided on the outer periphery of the processing filter 410, and the processing ring plate 413 is connected to the processing shaft 408 through a processing support rod 412 arranged on the side of the processing filter 410 away from the recovery processing sleeve 401; the processing filter 410 is symmetrically provided with curved filter grooves 414 that cooperate with the processing support rod 412; the processing shaft 408 cooperates with the processing motor arranged in the recovery processing sleeve 402.

[0037] A cleaning sleeve 409 is sleeved on the processing shaft 408 and is rotatably connected to the processing shaft 408 through a cleaning bearing 417. A pressurized cleaning pipe 415 is provided at the bottom end of the cleaning sleeve 409. A plurality of pressurized cleaning nozzles cooperating with the processing filter 410 are provided on the side of the pressurized cleaning pipe 415 tilted downward.

[0038] Hollow cleaning brushes 418 are evenly distributed on both sides of the processing ring groove 416, and the hollow cleaning brushes 418 are connected to the pressurized cleaning chamber arranged in the processing ring groove 416; a negative pressure processing chamber is arranged in the elliptical processing ring 411, and the negative pressure processing chamber cooperates with the negative pressure motor 404 arranged on the recovery processing tube 403.

[0039] The auxiliary recovery structure 6 includes an auxiliary waste heat shell 601 arranged on the back of the solar panel 5, and a spiral channel 604 is provided in the auxiliary waste heat shell 601; a liquid inlet pipe 603 connected to the spiral channel 604 is symmetrically arranged on the auxiliary waste heat shell 601, and a liquid outlet pipe 605 connected to the spiral channel 604 is provided at the center of the auxiliary waste heat shell 601.

[0040] Capillary guide grooves 602 are distributed in the spiral channel 604, and arc-shaped protrusions 606 with clearance fit are evenly distributed at the upper and lower ends of the spiral channel 604; a check valve is provided in the spiral channel 604; the liquid outlet pipe 605 is connected to the spiral insulation pipe spirally sleeved on the waste heat recovery pipe 4, and insulation cotton is laid on the spiral insulation pipe.

[0041] A method for a passive building waste heat recovery system, the steps comprising: S1, using the main waste heat recovery mechanism to recover the waste heat of the passive building 1; Ⅰ. The main recovery structure recovers the waste heat from the indoor rooms of passive building 1; In the heating season, the indoor heating of the passive building 1 is carried out, and the hot air rises to the ceiling of the room. When the indoor temperature is high, the waste heat collection hole is opened, and the hot air enters the waste heat collection hole along the concave curved groove, and flows along the waste heat collection cavity and the waste heat recovery branch pipe through the pretreatment structure 3 to the waste heat recovery pipeline 4, so as to recover the waste heat of the indoor room of the passive building 1.

[0042] II. The pretreatment structure 3 pre-treats the waste heat in the flue 2 and waste heat recovery branch pipe of the passive building 1; When the flue 2 of the passive building 1 is in use, the gas exhausted from the kitchen and the bathroom will carry a large amount of heat. Since the kitchen gas contains a large amount of oil, dust and odor, and the bathroom exhaust gas contains a large amount of steam and odor, there are dust and other pollution particles in the indoor waste heat of the passive building 1 recovered by the waste heat recovery branch pipe. The pretreatment structure 3 is used to pretreat the waste heat in the flue 2 and the waste heat recovery branch pipe. Specifically, the waste heat gas with steam, impurities and odor in the flue 2 of the passive building 1 and the waste heat gas with dust and other pollution particles in the indoor room of the passive building 1 flow into the horizontal pretreatment pipe 301, and the air inlet baffle 302 in the sinking treatment pipe 304 adjusts the air intake speed. The impurities in the waste heat gas are pretreated by the pretreatment plate 305 and the drying plate 306 in the fan ring sinking hole 303, so as to effectively reduce the steam, impurities, odor and dust particles in the waste heat gas, realize the pretreatment of the waste heat gas, and reduce the impact of the waste heat gas on the waste heat recovery pipeline 4.

[0043] III. Recycling the waste heat gas after pretreatment by using the recycling and processing structure; The pretreated waste heat gas enters the waste heat recovery pipeline 4. When it flows through the recovery and processing structure, the recovery and processing structure processes the waste heat gas again to reduce impurities in the waste heat gas, thereby preventing the recovered waste heat gas from affecting the indoor rooms of the passive building 1 when it is reused. Specifically, the pretreated waste heat gas flows to the recovery and processing sleeve 402 through the waste heat recovery pipeline 4. Under the guidance of the recovery and processing fan 407 and the action of the recovery processor 406, the impurities in the waste heat gas are filtered on the processing filter 410, thereby ensuring the cleanliness of the waste heat recovery and preventing the impurities in the waste heat from corroding the waste heat recovery pipeline 4.

[0044] After a period of time, the recycling processor 406 filters the waste heat gas. A large amount of impurities adhere to the processing filter 410, which seriously affects the filtering efficiency of the processing filter 410. The processing motor of the recycling processor 406 is started, and the processing motor drives the processing shaft 408 to rotate in the recycling processing sleeve 402. The cleaning sleeve 409 is rotatably connected to the processing shaft 408 through the cleaning bearing 417. The cleaning sleeve 409 is fixedly connected to the recycling processing sleeve 402. The cleaning sleeve 409 does not rotate with the processing shaft 408. The processing shaft 408 drives the processing ring plate 413 and the processing filter 410 on the inner side of the elliptical processing ring 411 through the processing support rod 412. The processing ring groove 416 rotates. As the processing filter 410 rotates, the pressurized cleaning nozzle on the pressurized cleaning tube 415 at the bottom of the cleaning sleeve 409 continuously sprays pressurized liquid or gas onto the processing filter 410 to blow impurities on the processing filter 410 away from the processing filter 410. Since the pressurized cleaning nozzle is tilted downward, the impurities blown away from the processing filter 410 are gradually cleaned to the outer periphery of the processing filter 410. Under the action of the curved filter groove 414, the impurities can more easily slide along the curved filter groove 414 to the processing ring plate 413, and gradually separate from the processing filter 410 under the action of the hollow cleaning brushes 418 on both sides of the processing ring groove 416.

[0045] At the same time, the negative pressure motor 404 on the recovery processing tube 403 continuously draws negative pressure into the negative pressure processing chamber through the recovery processing tube 403 and the negative pressure processing tube, so that the negative pressure processing chamber produces a negative pressure effect, so that impurities separated from the processing filter 410 enter the recovery processing chamber 405 along the negative pressure processing tube and the recovery processing tube 403, completing the cleaning and collection of impurities on the processing filter 410.

[0046] The inner diameter of the recovery and processing sleeve 401 is larger than the inner diameter of the waste heat recovery pipe 4, which is convenient for collecting impurities gradually deposited when the waste heat gas is filtered by the processing filter 410. During cleaning, the impurities are adsorbed into the recovery and processing chamber 405 through the negative pressure of the recovery and processing pipe 403 to prevent the impurities from being captured by the processing filter 410 again along with the waste heat gas.

[0047] S2, using an auxiliary waste heat recovery mechanism to recover waste heat from the passive building 1; The auxiliary waste heat recovery mechanism recycles the waste heat of the solar panel 5 on the passive building 1 through the auxiliary recovery structure 6. The auxiliary recovery structure 6 adds waste heat recovery liquid in the auxiliary waste heat shell 601, and the waste heat recovery liquid flows into the spiral channel 604 along the liquid inlet pipe 603. Under the action of the capillary guide groove 602 and the arc-shaped protrusion 606, the waste heat recovery liquid fully exchanges heat with the back of the solar panel 5, cools the solar panel 5, and ensures the normal operation and efficiency of the solar panel 5. The check valve can prevent the waste heat recovery liquid from flowing back. The waste heat recovery liquid after the waste heat recovery is completed flows out along the liquid outlet pipe 605, and is wound around the waste heat recovery pipe 4 through the spiral insulation pipe. The waste heat recovery pipe 4 is insulated by the waste heat recovery liquid to prevent the gas temperature in the waste heat recovery pipe 4 from decreasing, which facilitates the recycling of the gas after the waste heat recovery; the recovered waste heat is used to heat the interior of the passive building 1 through the micropores on the indoor bottom plate of the passive building 1.

[0048] Example 2 A passive building waste heat recovery system adopts the following method, including the following steps; S1, using the main waste heat recovery mechanism to recover the waste heat of the passive building 1; Ⅰ. The main recovery structure recovers the waste heat from the indoor rooms of passive building 1; In the heating season, the indoor heating of the passive building 1 is carried out, and the hot air rises to the ceiling of the room. When the indoor temperature is high, the waste heat collection hole is opened, and the hot air enters the waste heat collection hole along the concave curved groove, and flows along the waste heat collection cavity and the waste heat recovery branch pipe through the pretreatment structure 3 to the waste heat recovery pipeline 4, so as to recover the waste heat of the indoor room of the passive building 1.

[0049] II. The pretreatment structure 3 pre-treats the waste heat in the flue 2 and waste heat recovery branch pipe of the passive building 1; When the flue 2 of the passive building 1 is in use, the gas exhausted from the kitchen and the bathroom will carry a large amount of heat. Since the kitchen gas contains a large amount of oil, dust and odor, and the bathroom exhaust gas contains a large amount of steam and odor, there are dust and other pollution particles in the indoor waste heat of the passive building 1 recovered by the waste heat recovery branch pipe. The pretreatment structure 3 is used to pretreat the waste heat in the flue 2 and the waste heat recovery branch pipe. Specifically, the waste heat gas with steam, impurities and odor in the flue 2 of the passive building 1 and the waste heat gas with dust and other pollution particles in the indoor room of the passive building 1 flow into the horizontal pretreatment pipe 301, and the air inlet baffle 302 in the sinking treatment pipe 304 adjusts the air intake speed. The impurities in the waste heat gas are pretreated by the pretreatment plate 305 and the drying plate 306 in the fan ring sinking hole 303, so as to effectively reduce the steam, impurities, odor and dust particles in the waste heat gas, realize the pretreatment of the waste heat gas, and reduce the impact of the waste heat gas on the waste heat recovery pipeline 4.

[0050] III. Recycling the waste heat gas after pretreatment by using the recycling and processing structure; The pretreated waste heat gas enters the waste heat recovery pipeline 4. When it flows through the recovery and processing structure, the recovery and processing structure processes the waste heat gas again to reduce impurities in the waste heat gas, thereby preventing the recovered waste heat gas from affecting the indoor rooms of the passive building 1 when it is reused. Specifically, the pretreated waste heat gas flows to the recovery and processing sleeve 402 through the waste heat recovery pipeline 4. Under the guidance of the recovery and processing fan 407 and the action of the recovery processor 406, the impurities in the waste heat gas are filtered on the processing filter 410, thereby ensuring the cleanliness of the waste heat recovery and preventing the impurities in the waste heat from corroding the waste heat recovery pipeline 4.

[0051] After a period of time, the recycling processor 406 filters the waste heat gas. A large amount of impurities adhere to the processing filter 410, which seriously affects the filtering efficiency of the processing filter 410. The processing motor of the recycling processor 406 is started, and the processing motor drives the processing shaft 408 to rotate in the recycling processing sleeve 402. The cleaning sleeve 409 is rotatably connected to the processing shaft 408 through the cleaning bearing 417. The cleaning sleeve 409 is fixedly connected to the recycling processing sleeve 402. The cleaning sleeve 409 does not rotate with the processing shaft 408. The processing shaft 408 drives the processing ring plate 413 and the processing filter 410 on the inner side of the elliptical processing ring 411 through the processing support rod 412. The processing ring groove 416 rotates. As the processing filter 410 rotates, the pressurized cleaning nozzle on the pressurized cleaning tube 415 at the bottom of the cleaning sleeve 409 continuously sprays pressurized liquid or gas onto the processing filter 410 to blow impurities on the processing filter 410 away from the processing filter 410. Since the pressurized cleaning nozzle is tilted downward, the impurities blown away from the processing filter 410 are gradually cleaned to the outer periphery of the processing filter 410. Under the action of the curved filter groove 414, the impurities can more easily slide along the curved filter groove 414 to the processing ring plate 413, and gradually separate from the processing filter 410 under the action of the hollow cleaning brushes 418 on both sides of the processing ring groove 416.

[0052] At the same time, the negative pressure motor 404 on the recovery processing tube 403 continuously draws negative pressure into the negative pressure processing chamber through the recovery processing tube 403 and the negative pressure processing tube, so that the negative pressure processing chamber produces a negative pressure effect, so that impurities separated from the processing filter 410 enter the recovery processing chamber 405 along the negative pressure processing tube and the recovery processing tube 403, completing the cleaning and collection of impurities on the processing filter 410.

[0053] The inner diameter of the recovery and processing sleeve 401 is larger than the inner diameter of the waste heat recovery pipe 4, which is convenient for collecting impurities gradually deposited when the waste heat gas is filtered by the processing filter 410. During cleaning, the impurities are adsorbed into the recovery and processing chamber 405 through the negative pressure of the recovery and processing pipe 403 to prevent the impurities from being captured by the processing filter 410 again along with the waste heat gas.

[0054] S2, using an auxiliary waste heat recovery mechanism to recover waste heat from the passive building 1; The auxiliary waste heat recovery mechanism recycles the waste heat of the solar panel 5 on the passive building 1 through the auxiliary recovery structure 6. The auxiliary recovery structure 6 adds waste heat recovery liquid in the auxiliary waste heat shell 601, and the waste heat recovery liquid flows into the spiral channel 604 along the liquid inlet pipe 603. Under the action of the capillary guide groove 602 and the arc-shaped protrusion 606, the waste heat recovery liquid fully exchanges heat with the back of the solar panel 5, cools the solar panel 5, and ensures the normal operation and efficiency of the solar panel 5. The check valve can prevent the waste heat recovery liquid from flowing back. The waste heat recovery liquid after the waste heat recovery is completed flows out along the liquid outlet pipe 605, and is wound around the waste heat recovery pipe 4 through the spiral insulation pipe. The waste heat recovery pipe 4 is insulated by the waste heat recovery liquid to prevent the gas temperature in the waste heat recovery pipe 4 from decreasing, which facilitates the recycling of the gas after the waste heat recovery; the recovered waste heat is used to heat the interior of the passive building 1 through the micropores on the indoor bottom plate of the passive building 1.

[0055] Example 3 A passive building waste heat recovery system is different from Example 1 in that a U-shaped adsorption chamber is provided on the side of the recovery and processing sleeve 402 away from the recovery and processing sleeve 401, and a detachable U-shaped tube is provided on the U-shaped adsorption chamber, and the detachable U-shaped tube is filled with adsorption material.

[0056] Example 4 A passive building waste heat recovery system, which differs from Example 1 in that: a pressurized cleaning nozzle includes a cleaning branch pipe connected to a pressurized cleaning pipe 415, and a conical cleaning nozzle is provided at one end of the cleaning branch pipe away from the pressurized cleaning pipe 415, and the conical cleaning nozzle cooperates with cleaning rollers arranged on both sides of the cleaning branch pipe; a cleaning shaft connected to the center of the cleaning roller is horizontally placed in the cleaning branch pipe, and a cleaning ball that cooperates with the inner diameter of the cleaning branch pipe is provided on the cleaning shaft, and a liquid guide groove that cooperates with the conical cleaning nozzle is provided on one side of the cleaning ball; a cleaning sleeve 409 is connected to the recovery processing sleeve 402 through a sleeve support rod.

[0057] Example 5 A passive building waste heat recovery system, which differs from Example 1 in that: a hollow cleaning brush 418 includes a hollow brush body, a brush ring with a clearance fit is provided on the hollow brush body, the brush rings are connected by annular bristles, and the annular bristles are provided with a cleaning brush hole connected to the hollow brush body; the brush ring is provided with a pressurized brush hole connected to the hollow brush body.

[0058] The above description is only a preferred embodiment of the present invention, but is not limited to the above examples. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A passive building waste heat recovery system, characterized in that: It includes a main waste heat recovery mechanism and an auxiliary waste heat recovery mechanism. The auxiliary waste heat recovery mechanism includes an adjustable solar panel arranged on a passive building, and an auxiliary recovery structure is arranged on the back of the solar panel; the main waste heat recovery mechanism includes a waste heat recovery pipeline laid in the passive building, and the waste heat recovery pipeline is matched with the indoor room of the passive building through a waste heat recovery branch pipe.

2. The passive building waste heat recovery system according to claim 1, characterized in that: The waste heat recovery pipeline is provided with a recovery and processing structure; the waste heat recovery branch pipe is provided with a main recovery structure matched with the indoor room of the passive building and a pretreatment structure connected with the flue of the passive building, the main recovery structure includes a concave curved groove arranged on the ceiling of the indoor room of the passive building, the concave curved groove is provided with a waste heat collection hole, and the waste heat collection hole is connected to the waste heat recovery branch pipe through a waste heat collection cavity arranged on the concave curved groove.

3. The passive building waste heat recovery system according to claim 2, characterized in that: The pretreatment structure includes a horizontal pretreatment pipe connected to the flue and waste heat recovery branch pipe of the passive building, one end of the horizontal pretreatment pipe away from the flue and the waste heat recovery branch pipe is connected to the waste heat recovery pipeline, and a sinking treatment pipe is provided on the horizontal pretreatment pipe; an angle-adjustable air inlet baffle is provided on one side of the sinking treatment pipe, and a detachable drying plate is provided on the other side; at least two fan ring sinking holes are provided on the sinking treatment pipe, and a detachable pretreatment plate is provided in the fan ring sinking hole, and the pretreatment plates are staggered in the sinking treatment pipe.

4. The passive building waste heat recovery system according to claim 3, characterized in that: The recovery and processing structure includes a recovery and processing sleeve mounted on the waste heat recovery pipeline, a recovery and processing fan is arranged in the recovery and processing sleeve, a recovery processor is arranged on the side of the recovery and processing fan close to the waste heat recovery branch pipe, the recovery processor cooperates with a recovery and processing sleeve mounted on the waste heat recovery pipeline and detachably matched with the recovery and processing sleeve, a detachable recovery and processing tube is arranged on the recovery and processing tube, and a detachable recovery and processing chamber is connected to the bottom end of the recovery and processing tube.

5. The passive building waste heat recovery system according to claim 4, characterized in that: The recovery processor includes an elliptical processing ring arranged in the recovery processing sleeve and matched with the recovery processing sleeve. The bottom end of the elliptical processing ring is inclined toward the recovery processing sleeve. A circular processing disk is arranged in the elliptical processing ring. The circular processing disk cooperates with the processing ring groove arranged on the inner side of the elliptical processing ring; the inner diameter of the waste heat recovery pipe is smaller than the inner diameter of the recovery processing sleeve, and a guide curved surface is arranged at the connection between the waste heat recovery pipe and the recovery processing sleeve.

6. The passive building waste heat recovery system according to claim 5, characterized in that: The circular processing disk includes a processing shaft rotatably connected to the recovery processing sleeve, a processing filter is provided on the processing shaft, a processing ring plate is provided on the outer periphery of the processing filter, and the processing ring plate is connected to the processing shaft through a processing support rod arranged on one side of the processing filter; the processing filter is symmetrically provided with curved filter grooves that cooperate with the processing support rod; the processing shaft cooperates with the processing motor arranged in the recovery processing sleeve.

7. The passive building waste heat recovery system according to claim 6, characterized in that: The processing shaft is sleeved with a cleaning sleeve rotatably connected to the processing shaft, the bottom end of the cleaning sleeve is provided with a pressurized cleaning pipe, and the side of the pressurized cleaning pipe is inclined downwardly provided with a plurality of pressurized cleaning nozzles cooperating with the processing filter.

8. The passive building waste heat recovery system according to claim 7, characterized in that: Hollow cleaning brushes are evenly distributed on both sides of the processing ring groove, and the hollow cleaning brushes are connected to the pressurized cleaning chamber arranged in the processing ring groove; a negative pressure processing chamber is arranged in the elliptical processing ring, and the negative pressure processing chamber cooperates with the negative pressure motor arranged on the recovery processing tube.

9. The passive building waste heat recovery system according to claim 8, characterized in that: The auxiliary recovery structure includes an auxiliary waste heat shell arranged on the back of the solar panel, and a spiral channel is arranged in the auxiliary waste heat shell; liquid inlet pipes connected to the spiral channel are symmetrically arranged on the auxiliary waste heat shell, and a liquid outlet pipe connected to the spiral channel is arranged at the center of the auxiliary waste heat shell.

10. The passive building waste heat recovery system according to claim 9, characterized in that: Capillary guide grooves are distributed in the spiral channel, and arc-shaped protrusions with clearance fit are evenly distributed at the upper and lower ends of the spiral channel; a check valve is arranged in the spiral channel; the liquid outlet pipe is connected to a spiral insulation pipe spirally sleeved on the waste heat recovery pipe, and insulation cotton is laid on the spiral insulation pipe.

Images