Concealed cavity installation construction method for air conditioner condenser pipe

Abstract

The invention discloses an air conditioner condenser pipe hidden cavity installation construction method, and relates to the technical field of building drainage, through the steps of pipeline pre-burying and pipeline installation construction, a drainage vertical pipe penetrates through a first water stop joint to be connected with a loose joint and then is downwards connected with a second water stop joint, and a flow guide gap and the outer wall of the drainage vertical pipe are utilized; accumulated water in the bay window hidden cavity and condensed water on the surface of the water supply pipe are guided to an air conditioner to be volatilized or discharged outwards; the loose joint is good in adaptation, good in sealing performance, easy to mount and dismount and convenient to maintain, and the maintenance cost is saved; the drainage vertical pipe is connected with a second water stop joint and then connected with a water supply tee joint; the water supply pipe penetrates through the other second water stop joint and is connected with the water supply tee joint to form an independent air conditioner condensate water drainage path; through the overhaul design of the diversion gap, the three-channel drainage formed in the outer wall and the interior of the drainage vertical pipe, the embedded water stop joint for sealing the bay plate through hole and the diversion gap and the modular installation of pipeline fittings, efficient drainage, moisture prevention and corrosion prevention, precise construction and convenient overhaul of air conditioner condensate water and a bay window hidden cavity are achieved.

Description

Technical Field

[0001] The invention relates to the technical field of building drainage, and in particular to a dark cavity installation construction method for an air-conditioning condenser pipe. Background Art

[0002] In traditional structures and construction methods, air conditioning condensate risers are mostly exposed or directly connected to the building drainage system. However, this approach causes problems such as easy aging of pipes, affecting the aesthetics and the overall effect of the building's facade. With the continuous improvement of the construction level of modern residential projects and people's requirements for living comfort, this approach has become outdated; and concealed installation of air conditioning outdoor units and condensate discharge systems has become the mainstream method for building facades.

[0003] In order to improve the aesthetics of buildings, in recent years, a concealed design has been widely adopted to embed the condensate riser into the dark cavity of the bay window side wall, and wrap it with masonry structure to form a closed space. Although this construction method solves the aging and visual problems of exposed pipes, the internal environment of the dark cavity is complex, and water accumulation is often caused due to poor condensate discharge, which in turn causes secondary problems such as moisture and mold on the surrounding walls of the bay window dark cavity.

[0004] There are currently three common ways to prevent water accumulation in dark cavities:

[0005] (1) Relying on gravity drainage: The current mainstream technology relies on the natural slope of the condensate riser for gravity drainage. Drainage holes are usually set at the bottom of the dark cavity to connect to the external environment of the building. However, in actual projects, due to the narrow internal space of the dark cavity and insufficient pipe installation accuracy, the drainage slope is difficult to meet the regulatory requirement of ≥1%. As a result, about 35% of similar projects have local reverse slopes due to construction errors, forming water accumulation areas.

[0006] (2) Passive moisture-proof treatment: By applying waterproof coating or laying waterproof membrane on the inner wall of the dark cavity, water penetration is attempted to be blocked. However, in actual applications, long-term water accumulation will still cause the bond between the waterproof layer and the masonry to fail. After continuous immersion for 72 hours, the bond strength decreases by about 62%, and the problem of moisture diffusion caused by the water accumulation itself cannot be solved.

[0007] (3) Mechanically assisted drainage: A few high-end projects have tried to install micro-drainage pumps at the bottom of the dark cavity. However, the rate of dark cavity inspection openings is insufficient, resulting in difficulties in equipment maintenance, increased energy consumption and high construction costs, making it difficult to promote on a large scale.

[0008] The existing technology mainly has the following key problems:

[0009] There are defects in the structural design. The dark cavity space and pipeline layout have not formed a coordinated drainage system. The drainage holes are easily blocked by construction waste, and there is a lack of effective secondary drainage guarantee mechanism, resulting in insufficient drainage power. Traditional masonry materials such as aerated concrete blocks have a water absorption rate of up to 8%-12%. In a humid environment, they become "water storage layers", which accelerates the growth of mold and causes the moisture-proofing of materials to fail. There is a lack of standardized positioning tooling for pipeline installation. Manual construction is difficult to ensure slope accuracy, and the deviation is generally as high as ±0.5%-0.8%. The waterproof nodes inside the dark cavity are roughly processed, resulting in a high risk of leakage. Closed dark cavities are difficult to inspect and repair. In existing housing construction, only about 30% of the construction plans are designed with detachable panels on the dark cavity, and there is no systematic humidity monitoring and early warning mechanism. As a result, the dark cavity is in a high humidity environment for a long time (relative humidity>85%), which eventually causes mildew on the walls around the bay window through capillary action.

[0010] In summary, it is found that the prior art has at least the following technical problems:

[0011] The existing installation structure and construction technology of the dark cavity of the air-conditioning condenser tube have the problems of insufficient drainage power, failure of moisture-proof materials, low construction accuracy and difficulty in maintenance. Summary of the invention

[0012] The purpose of the present invention is to provide an air-conditioning condenser tube dark cavity installation construction method to solve the problems of insufficient drainage power, failure of material moisture-proofing, low construction accuracy and difficult maintenance in the existing air-conditioning condenser tube dark cavity installation structure and construction technology.

[0013] The various technical effects that can be produced by the preferred technical solutions among the various technical solutions provided by the present invention are described in detail below.

[0014] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0015] The present invention provides a method for installing a dark cavity of an air conditioner condenser pipe, comprising S1, a pipe pre-buried construction step: S1.1, a first water stop joint, wherein the first water stop joint is pre-buried in a lower floating plate during concrete pouring, and a base of the first water stop joint is located on a lower side of the lower floating plate, and a pipe opening of the first water stop joint is flush with an upper side of the lower floating plate;

[0016] S1.2, two second water stop joints, the second water stop joints are embedded in the upper floating plate during concrete pouring, and the base of the second water stop joint is located on the lower side of the upper floating plate, and the pipe opening of the second water stop joint is higher than the upper side of the upper floating plate;

[0017] S2. Pipeline installation construction steps:

[0018] S2.1, a drainage riser, the drainage riser passes through the first water stop joint to reach the upper floating plate, and is sealed and connected to a pipe opening of the second water stop joint;

[0019] The diameter of the first water stop joint is two levels larger than the diameter of the drainage riser, and a diversion gap is formed between the first water stop joint and the drainage riser. The diversion gap and the outer wall of the drainage riser are used for the drainage riser to pass through, and then the water in the dark cavity of the upper bay window in the building and the water outside the water supply pipe are diverted from top to bottom along the diversion gap and the outer wall of the drainage riser to the ground of the air conditioner position, so as to volatilize the accumulated water or divert the accumulated water to the outside of the building;

[0020] S2.2, installing a union, wherein both ends of the union are sealed and connected to the drainage riser;

[0021] S2.3, water supply tee, the water supply tee is arranged in the dark cavity of the bay window below the upper floating plate; the vertical two side pipe openings of the water supply tee are respectively sealed and connected with the two ends of the drainage riser of the next layer;

[0022] S2.4, a water supply pipe, wherein the diameter of the water supply pipe is smaller than the second water stop joint, one end of the water supply pipe passes through and extends out of the other second water stop joint, and the other end of the water supply pipe is sealed and connected to the transverse pipe opening of the water supply tee.

[0023] In one embodiment, the first water stop joint, the second water stop joint, the drainage riser, the flexible joint, the water supply tee, and the water supply pipe are all made of PVC pipes.

[0024] In one embodiment, in step S2.4, the angle between the two ends of the water supply pipe is greater than 90 degrees, so as to guide the condensed water through the water supply pipe to the water supply tee, and the water supply tee then guides the condensed water to the drainage riser;

[0025] S2.5. After the water supply pipe is installed to the second water stop joint and the water supply tee, at the air conditioner position, on the upper side of the upper floating plate, use weather-resistant glue to fill and seal the gap between the inner wall of the second water stop joint and the outer wall of the water supply pipe.

[0026] In one embodiment, it also includes a reserved air conditioning sleeve; S1.3, pre-buried construction steps of the reserved air conditioning sleeve: S1.31, before pouring the wall concrete, install the reserved air conditioning sleeve according to the construction drawing through a plastic or steel support, and tilt the two ends of the reserved air conditioning sleeve from high to low along the indoor wall side of the bedroom toward the outdoor air conditioning unit wall side, and require the reserved air conditioning sleeve to tilt outward by 5%;

[0027] S1.32. After the installation of the air conditioning reserved casing is completed, cover the two ends of the air conditioning reserved casing with end caps;

[0028] S1.33, install the wall formwork, wrap the reserved air conditioning casing into the wall formwork, and then pour concrete;

[0029] S1.34. After the concrete pouring is completed, remove the end cover of the air conditioning reserved casing.

[0030] In one of the embodiments, it also includes a preset waterproof structure for the air conditioner position, and a drip groove is arranged on the lower side of the lower floating plate, and the drip groove is arranged near the entrance of the air conditioner position; S1.4, preset waterproof structure for the air conditioner position: S1.41, before pouring concrete, on the template of the lower side of the lower floating plate, install the template of the drip groove according to the preset position of the drawing;

[0031] S1.42. After the concrete is cast, the lower side template of the floating plate is removed, and then the template of the drip groove is removed, so as to form the drip groove integrally cast on the lower side of the floating plate.

[0032] In one embodiment, the step of waterproofing the ground and walls is also included:

[0033] S3.1. For the floors and walls of air conditioner locations and bay window cavities, use angle grinders and wire brushes to clean the slurry on the concrete base, with a focus on cleaning the pipe roots and corners that penetrate the wall to prevent water from penetrating and gathering at the pipe roots and corners;

[0034] S3.2. Use cement mortar to plaster and set a 2% drainage slope on the ground of the air conditioner toward the entrance; Use cement mortar to plaster and set a 2% drainage slope on the side of the lower floating board of the bay window cavity from all sides toward the first water stop joint;

[0035] S3.3. Use waterproof paint to paint the pipe roots and gaps at the corners of the air conditioner and the bay window cavity; waterproof the upper floating board of the window to 300mm high on the surrounding wall and onto the PVC water pipe to prevent rainwater from leaking into the room or the cavity;

[0036] S3.4. Seal the bay window cavity by building a brick wall at the back, make a 200mm high concrete wall pad at the bottom of the brick wall, and apply waterproof coating within 300mm high range at the bottom of the cavity to prevent a small amount of water from leaking into the room when there is a small amount of water at the bottom.

[0037] In one of the embodiments, a detachable shutter for waterproof enclosure is installed at the entrance of the air-conditioning unit;

[0038] S4, after the ground and wall waterproofing is completed in step S3, the shutter is installed at the entrance of the air conditioner position, and the shutter is detachably installed behind the drip groove to enclose the entrance of the air conditioner position and prevent typhoon rainwater from entering the air conditioner position;

[0039] S4.1. A drainage gap is left between the lower side of the louver and the ground of the air conditioner.

[0040] In one embodiment, the step of waterproofing the air conditioner installation is further included in S5:

[0041] S5.1, remove the shutters, install the air conditioner outdoor unit on the air conditioner position, and the fan of the air conditioner outdoor unit supplies air toward the entrance of the air conditioner position;

[0042] S5.2. Wrap the condenser copper tube of the air conditioner with a rubber-plastic insulation tube and wrap it with two layers of air conditioner cable ties to prevent the rubber-plastic insulation tube from loosening or falling off during use. At the same time, use the air conditioner cable ties to wrap a section of the drain pipe close to the air conditioner indoor unit, pass the condenser copper tube and the drain pipe from the room through the reserved air conditioner casing to the air conditioner position, connect the condenser copper tube to the air conditioner outdoor unit, and seal the drain pipe to the water supply pipe;

[0043] S5.3. Wrap a layer of air conditioning tie around the outer side of the extended section of the drainage pipe extending from the air conditioning reserved sleeve to the water supply pipe to prevent the extended section of the drainage pipe from aging and leaking;

[0044] S5.4. After passing the condenser copper tube and the drain pipe through the air-conditioning reserved casing, fill the air-conditioning reserved casing on the bedroom side with thermal insulation foam glue, and fill the anti-mildew sealant outside the foam glue; fill the air-conditioning reserved casing on the air-conditioning unit side with weather-resistant glue.

[0045] In one of the embodiments, it also includes a water guide plate; the water guide plate is hung at the vertical section where the water supply pipe penetrates into the second water stop joint and at the drainage riser below the water supply tee, and is used to guide the water on the outer wall of the water supply pipe to the outer wall of the drainage riser, so as to avoid dripping leakage in the dark cavity of the bay window after the water supply pipe leaks.

[0046] In one of the embodiments, in step S1, when pre-burying the first water stop joint and the second water stop joint connected to the drainage riser, it is necessary to use a hanging line to position them to ensure the coaxiality and verticality of the first water stop joint and the second water stop joint, so that there is a gap between the outer wall of the installed drainage riser and the inner wall of the first water stop joint, so as to prevent the water guided by the drainage riser from contacting the inner wall of the first water stop joint and diffusing to the lower floating plate.

[0047] The beneficial effects of the present invention are as follows:

[0048] The present invention effectively solves the core problems of insufficient drainage power, failure of moisture-proof materials, low construction precision and difficult maintenance in the concealed installation of traditional air-conditioning condenser pipes by setting a dark cavity pipe structure that cleverly combines a variety of standard pipes and fittings, and a matching construction method. It can also effectively improve construction efficiency while ensuring construction quality, avoiding water accumulation inside the bay window dark cavity and leakage of the pipe structure, and has the following significant advantages: (1) The drainage efficiency is significantly improved: Through the dual-path diversion design, the gap between the outer wall of the drainage riser and the inner wall of the first water stop joint forms an external natural diversion channel, combined with the main drainage path inside the drainage riser, to achieve "dual-channel drainage". Even if blockage occurs in the riser, the external gap can still divert the accumulated water, avoiding water accumulation in the bay window dark cavity and causing water storage, and preventing the bay window wall from dampness and mildew.

[0049] The gravity drainage is optimized by increasing the diameter of the first water stop joint so that "the diameter of the first water stop joint is two levels larger than the diameter of the drainage riser" to ensure that the diversion gap is sufficient, so that the accumulated water in the bay window cavity and the water outside the water supply pipe can be diverted from top to bottom along the diversion gap and the outer wall of the drainage riser to the air conditioner position below, and the accumulated water is evaporated through the ground of the air conditioner position or diverted to the outside of the building. The water outside the water supply pipe is diverted and drained by relying on the drainage riser, which directly solves the problem of dripping in the bay window cavity due to condensation on the surface of the water supply pipe due to overcooling of condensed water or leakage of the water supply pipe, thereby avoiding water accumulation in the bay window cavity and causing excessive humidity in the bay window cavity and wall. At the same time, it also combines the natural gravity slope to make the water in the bay window cavity flow out along the diversion gap, and efficient drainage can be achieved without additional drainage power, which also solves the problem of insufficient drainage power of traditional concealed pipes.

[0050] (2) Enhanced moisture-proof and sealing performance: Pre-buried water stop joints are used to prevent leakage. The first and second water stop joints are pre-buried in concrete, tightly fitting the upper and lower floating plates to avoid cracks. The pre-buried positioning is precise, and the sealing connection process of the drainage riser and the air-conditioning condensate drainage pipe is combined with adhesive connection to effectively isolate the air-conditioning condensate and the internal drainage of the drainage riser from leaking out, avoiding errors in the later installation of the pipeline, reducing the service life of the pipeline, and preventing pipeline leakage.

[0051] Compared with the traditional floating slab that is installed with water-stop joints after drilling holes, the later drilling and installation will cause cracks at the junction of the first and second water-stop joints and the installation holes of the upper and lower floating slabs. Even if the sealant is filled, the cracks will be restored or even enlarged due to the cyclic stress of thermal expansion and contraction. The accumulated water can easily penetrate into the floating slab through the cracks to form water accumulation. The pre-buried water-stop joint can integrate the water-stop joint with the floating slab concrete. The junction is complete and free of cracks, which can prevent water accumulation inside the bay window cavity, water accumulation in the air-conditioning unit position, and water diverted on the surface of the drainage riser from entering the floating slab concrete and causing water accumulation, thereby increasing the humidity inside the bay window cavity and causing mildew on the walls of the bay window cavity.

[0052] By setting a flexible joint at the drainage riser in the air-conditioning unit, the drainage riser can be flexibly connected. The flexible joint has good sealing performance and is easy to install and disassemble, which facilitates the later maintenance of the drainage riser and saves maintenance costs.

[0053] (3) Improved construction accuracy and efficiency: Standardized pre-embedded positioning: The water stop is pre-embedded before concrete pouring, and the flange side is precisely aligned with the lower side of the floating plate. The template positioning technology is used to ensure that the pipe opening height is consistent, such as "the pipe opening of the first water stop is flush with the upper side of the lower floating plate, and the pipe openings of the two second water stop joints are higher than the upper side of the upper floating plate". Compared with the later opening without pre-embedded holes, the positioning error of the manual opening and the installation height error of the water stop can be significantly reduced, and the bonding strength between the pre-embedded water stop and the floating plate concrete is higher.

[0054] Modular installation: By using standardized interfaces for components such as water supply tees and flexible joints, during construction, you only need to apply glue in sequence to seal the connections, which simplifies the operation process, reduces dependence on workers' skills, and ensures the reliability of the connection, making it easier to achieve standardized construction, resulting in better construction effects and reducing the proportion of water seepage in the pipe structure in the dark cavity of the bay window in the building.

[0055] (4) Breakthrough in maintenance convenience: Multifunctional use of the diversion gap: The gap between the drainage riser and the first water stop has both diversion and maintenance functions. Due to the large size of the diversion gap, a flashlight or camera can be inserted through the gap to observe the blockage and water accumulation of the bay window cavity, or use an endoscope to observe the situation inside the bay window cavity. When repairs are needed, the water pipe can be inserted to clean directly, without destroying the rear brick wall of the bay window cavity, and quick repairs can be carried out.

[0056] Independent maintenance of bay window cavities on each floor of the building: The drainage risers of the bay window cavities on each floor are independently connected. When a single-layer failure occurs, it can be repaired by simply dismantling the corresponding joints. This avoids the disadvantage of traditional concealed pipes that "one move affects the entire body", reduces the time for maintenance and repair, improves maintenance efficiency and reduces maintenance costs.

[0057] (5) Long-term cost reduction: Reduce maintenance frequency: The dual-channel drainage structure can effectively reduce the probability of blockage inside the drainage riser and the diversion gap. Combined with moisture-proof materials and sealing technology, it can keep the humidity in the bay window cavity within the standard, thereby avoiding the problem of moisture and mildew on the bay window cavity wall on the bedroom side, significantly extending the service life of the wall skin and reducing the long-term decoration cost; it also significantly extends the life of the pipeline and reduces the subsequent maintenance cost.

[0058] Energy saving and environmental protection: the diversion gap relies on natural gravity to discharge the water in the dark cavity of the bay window, and the outer wall of the drainage riser relies on gravity to divert the condensation or seepage on the surface of the water pipe. There is no need to add energy-consuming equipment such as water pumps, which meets the requirements of green buildings. BRIEF DESCRIPTION OF THE DRAWINGS

[0059] In order to more clearly illustrate the technical solution of the present invention, the drawings required for use in the implementation mode will be briefly introduced below. Obviously, the drawings described below are only some implementation modes of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0060] Figure 1 is a schematic diagram of the construction layout of the first embodiment of the present invention;

[0061] Figure 2 2 is a schematic diagram of a top view of the structure of a lower floating plate according to a first embodiment of the present invention;

[0062] Figure 3 is a schematic diagram of a top view of the air conditioner unit according to the first embodiment of the present invention;

[0063] Figure 4 2 is a schematic diagram of the structure of the floating board in the first embodiment of the present invention when viewed from above;

[0064] Figure 5 It is a schematic diagram of the construction layout of the second embodiment of the present invention.

[0065] The reference numerals are as follows:

[0066] 11. First water stop; 111. Diversion gap; 12. Second water stop; 13. Drainage riser; 14. Flexible joint; 15. Water supply tee; 16. Water supply pipe; 17. Air conditioning reserved casing; 18. Water guide plate;

[0067] 2. Lower floating board;

[0068] 3. Go up the floating board;

[0069] 4. Drip tank;

[0070] 5. Shutters;

[0071] 6. Build brick walls later;

[0072] 7. Air conditioner position; 71. Air conditioner outdoor unit;

[0073] 8. Bedroom; 81. Air conditioner indoor unit;

[0074] 9. Dark cavity in bay window. DETAILED DESCRIPTION

[0075] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0076] In a specific embodiment, a method for installing and constructing a dark cavity of an air-conditioning condenser pipe is provided. Through the steps of pre-buried pipes and pipe installation and construction, a drainage riser passes through a first water stop joint and is connected to a second water stop joint downwardly. The diversion gap and the outer wall of the drainage riser are used to divert water accumulated in the dark cavity of the bay window and condensed water on the surface of the water supply pipe to the air conditioner position for volatilization or external discharge. The good adaptability of the live joint has good sealing performance and is easy to install and disassemble, which is convenient for later maintenance and saves maintenance costs. The drainage riser is connected to the second water stop joint and then connected to a water supply tee downwardly. The water supply pipe passes through another second water stop joint and is connected to the water supply tee to form an independent air-conditioning condensate drainage path. The three-channel drainage is formed by the diversion gap, the outer wall and the interior of the drainage riser, the pre-buried water stop joint sealing floating plate is perforated, the diversion gap is inspected and designed, and the pipe fittings are modularly installed to achieve efficient drainage, moisture-proof and anti-corrosion, precise construction and convenient maintenance of air-conditioning condensate water and the dark cavity of the bay window. The existing installation structure and construction technology of the dark cavity of the air-conditioning condenser pipe effectively solve the problems of insufficient drainage power, failure of material moisture-proof, low construction precision and difficulty in maintenance.

[0077] The first embodiment of the air conditioning condenser tube dark cavity installation construction method is as follows Figures 1 to 4 As shown, it includes S1, pipeline pre-buried construction steps: S1.1, first water stop joint, the first water stop joint is pre-buried in the lower floating plate during concrete pouring, and the flange side of the first water stop joint is located on the lower side of the lower floating plate, and the pipe opening of the first water stop joint is flush with the upper side of the lower floating plate;

[0078] S1.2, two second water stop joints, the second water stop joints are embedded in the upper floating board during concrete pouring, and the flange side of the second water stop joint is located on the lower side of the upper floating board; the pipe mouth of the second water stop joint is higher than the upper side of the upper floating board and is located in the air conditioner position, which is used to avoid the presence of a low position or gap in the combination of the upper floating board and the second water stop joint, so that the combination of the second water stop joint and the concrete of the upper floating board remains intact, and prevents water at the air conditioner position from accumulating in the low position or gap, resulting in water accumulation in the upper floating board concrete; the two second water stop joints are spaced apart and arranged side by side;

[0079] S1.3. Pre-embedded construction steps for reserved air conditioner casing: S1.31. Before pouring the wall concrete, install the reserved air conditioner casing according to the construction drawing by using plastic or steel support, and tilt the two ends of the reserved air conditioner casing from high to low along the indoor wall side of the bedroom toward the outdoor wall side of the air conditioner position. The reserved air conditioner casing is required to tilt outward by 5%;

[0080] S1.32. After the reserved air conditioning casing is installed, cover both ends of the reserved air conditioning casing with end caps;

[0081] S1.33, install the wall formwork, wrap the reserved air conditioning casing into the wall formwork, and then pour concrete;

[0082] S1.34. After the concrete pouring is completed, remove the end cap of the reserved air conditioning casing;

[0083] S1.4. Preset waterproof structure for air conditioner position: S1.41. Before pouring concrete, install the template of the drip groove on the template of the lower side of the lower floating plate according to the preset position of the drawing, so that the drip groove is set near the entrance of the air conditioner position;

[0084] S1.42. After the concrete is poured, the lower side template of the floating plate is removed, and then the template of the drip groove is removed, so as to form an integrally cast drip groove on the lower side of the floating plate.

[0085] S2. Pipeline installation construction steps:

[0086] S2.1, drainage riser, the drainage riser passes through the first water stop joint from the lower floating plate to the upper floating plate, and is sealed and connected to the pipe opening of one of the second water stop joints;

[0087] Among them, the diameter of the first water stop joint is two levels larger than the diameter of the drainage riser, and a diversion gap is formed between the first water stop joint and the drainage riser. The diversion gap and the outer wall of the drainage riser are used to divert the water in the dark cavity of the upper bay window in the building and the water outside the water supply pipe from top to bottom along the diversion gap and the outer wall of the drainage riser to the air conditioner position below after the drainage riser passes through, and evaporate the accumulated water through the ground of the air conditioner position or divert the accumulated water to the outside of the building, so as to avoid the accumulation of water in the dark cavity of the bay window on each floor; and the diversion gap is used as an observation hole or tool insertion space for later maintenance;

[0088] S2.2. Install the union, and seal the two ends of the union with the drainage riser;

[0089] S2.3, water supply tee, the water supply tee is arranged in the dark cavity of the floating window below the upper floating plate; the vertical two side pipe openings of the water supply tee are respectively sealed and connected with the two ends of the drainage riser of the next layer;

[0090] S2.4, water supply pipe, the diameter of the water supply pipe is smaller than the second water stop joint, one end of the water supply pipe passes through and extends out of the other second water stop joint, and the other end of the water supply pipe is sealed and connected to the horizontal pipe opening of the water supply tee;

[0091] Among them, in order to facilitate the discharge of water on the surface of the water supply pipe and avoid dripping and leakage in the dark cavity of the bay window, when the water supply pipe is installed, the angle between the two ends of the water supply pipe is controlled to be greater than 90 degrees, so as to guide the condensed water through the water supply pipe to the water supply tee, and the water supply tee then guides the condensed water to the drainage riser; to avoid condensation leakage after long-term use of the pipeline or condensation on the surface of the water pipe due to the temperature difference between the condensed water and the environment, which may cause dripping in the dark cavity of the bay window.

[0092] When applying, two 45-degree elbow joints can be used to allow the water supply pipe to reach the horizontal section of the water supply tee horizontally, and the vertical section of the water supply pipe and the water supply tee are connected at an angle to make it easier for water on the outer wall surface of the water supply pipe to flow to the outer wall surface of the drainage riser, thereby preventing water droplets on the outer wall surface of the water supply pipe from falling into the dark cavity of the bay window.

[0093] S2.5. After installing the water supply pipe to the second water stop joint and the water supply tee, at the air conditioner location, on the upper side of the upper floating plate, use weather-resistant glue to fill and seal the gap between the inner wall of the second water stop joint and the outer wall of the water supply pipe.

[0094] S3. Waterproofing steps for floors and walls: S3.1. For floors and walls of air conditioner locations and bay window cavities, use angle grinders and wire brushes to clean the slurry on the concrete base, with a focus on cleaning the pipe roots and corners that penetrate the wall to prevent water from penetrating and gathering at the pipe roots and corners;

[0095] S3.2. Use cement mortar to plaster and set a 2% drainage slope on the ground of the air conditioner unit towards the entrance; use cement mortar to plaster and set a 2% drainage slope on the side of the lower floating board of the bay window cavity from all sides towards the first water stop;

[0096] S3.3. Use waterproof paint to paint the pipe roots and gaps at the corners of the air conditioner and the bay window cavity; waterproof the upper floating board of the window to 300mm high on the surrounding wall and onto the PVC water pipe to prevent rainwater from leaking into the room or the cavity;

[0097] S3.4. Seal the bay window cavity by building a brick wall at the back, make a 200mm high concrete wall pad at the bottom of the brick wall, and apply waterproof coating within 300mm high range at the bottom of the cavity to prevent a small amount of water from leaking into the room when there is a small amount of water at the bottom.

[0098] S4. After the ground and wall waterproofing is completed in step S3, a shutter is installed at the entrance of the air conditioner position, and the shutter is detachably installed behind the drip groove to enclose the entrance of the air conditioner position and prevent typhoon rainwater from entering the air conditioner position;

[0099] S4.1. A drainage gap is left between the lower side of the louver and the ground where the air conditioner is located.

[0100] S5. Waterproofing steps for air conditioner installation: S5.1. Remove the shutters and install the air conditioner outdoor unit on the air conditioner position, with the fan of the air conditioner outdoor unit delivering air toward the entrance of the air conditioner position;

[0101] S5.2. Wrap the condenser copper tube of the air conditioner with a rubber-plastic insulation tube and wrap it with two layers of air conditioner cable ties to prevent the rubber-plastic insulation tube from loosening or falling off during use. At the same time, use the air conditioner cable ties to wrap the section of the drain pipe close to the indoor unit of the air conditioner. Pass the condenser copper tube and the drain pipe from the room through the reserved sleeve of the air conditioner to the position of the air conditioner. Connect the condenser copper tube to the outdoor unit of the air conditioner, and seal the drain pipe to the water supply pipe.

[0102] S5.3. Wrap a layer of air conditioning tie around the outer side of the drainage pipe extending from the reserved air conditioning sleeve to the water supply pipe to prevent the extended section of the drainage pipe from aging and leaking;

[0103] S5.4. After passing the condenser copper tube and the drain pipe through the reserved air conditioner casing, fill the reserved air conditioner casing on the bedroom side with thermal insulation foam glue, and fill the outside of the foam glue with anti-mildew sealant; fill the reserved air conditioner casing on the air conditioner side with weather-resistant glue.

[0104] As one optional implementation,

[0105] In step S1, when pre-burying the first water stop joint and the second water stop joint connected to the drainage riser, it is necessary to use a hanging line to position them to ensure the coaxiality and verticality of the first water stop joint and the second water stop joint, so that there is a gap between the outer wall of the installed drainage riser and the inner wall of the first water stop joint, so as to prevent the water guided by the drainage riser from contacting the inner wall of the first water stop joint and diffusing to the lower floating plate.

[0106] The present invention effectively solves the core problems of insufficient drainage power, failure of moisture-proof materials, low construction precision and difficult maintenance in the concealed installation of traditional air-conditioning condenser pipes by setting a dark cavity pipe structure that cleverly combines a variety of standard pipes and fittings, and a matching construction method. It can also effectively improve construction efficiency while ensuring construction quality, avoiding water accumulation inside the bay window dark cavity and leakage of the pipe structure, and has the following significant advantages: (1) The drainage efficiency is significantly improved: Through the dual-path diversion design, the gap between the outer wall of the drainage riser and the inner wall of the first water stop joint forms an external natural diversion channel, combined with the main drainage path inside the drainage riser, to achieve "dual-channel drainage". Even if blockage occurs in the riser, the external gap can still divert the accumulated water, avoiding water accumulation in the bay window dark cavity and causing water storage, and preventing the bay window wall from dampness and mildew.

[0107] The gravity drainage is optimized by increasing the diameter of the first water stop joint so that "the diameter of the first water stop joint is two levels larger than the diameter of the drainage riser" to ensure sufficient diversion gap, so that the accumulated water in the bay window cavity and the water outside the water supply pipe can be diverted from top to bottom along the diversion gap and the outer wall of the drainage riser to the air conditioner position below, and the accumulated water can evaporate through the ground of the air conditioner position or be diverted outside the building. The water outside the water supply pipe is diverted and drained by relying on the drainage riser, which directly solves the problem of dripping in the bay window cavity due to condensation on the surface of the water supply pipe due to overcooling of condensed water or leakage of the water supply pipe, thereby avoiding water accumulation in the bay window cavity and causing excessive humidity in the bay window cavity and wall. At the same time, it also combines the natural gravity slope to make the water in the bay window cavity flow out along the diversion gap, and efficient drainage can be achieved without additional drainage power, which also solves the problem of insufficient drainage power of traditional concealed pipes.

[0108] (2) Enhanced moisture-proof and sealing performance: Pre-buried water stop joints are used to prevent leakage. The first and second water stop joints are pre-buried in concrete, tightly fitting the upper and lower floating plates to avoid cracks. The pre-buried positioning is precise, and the sealing connection process of the drainage riser and the air-conditioning condensate drainage pipe is combined with adhesive connection to effectively isolate the air-conditioning condensate and the internal drainage of the drainage riser from leaking out, avoiding errors in the later installation of the pipeline, reducing the service life of the pipeline, and preventing pipeline leakage.

[0109] Compared with the traditional floating slab that is installed with water-stop joints after drilling holes, the later drilling and installation will cause cracks at the junction of the first and second water-stop joints and the installation holes of the upper and lower floating slabs. Even if the sealant is filled, the cracks will be restored or even enlarged due to the cyclic stress of thermal expansion and contraction. The accumulated water can easily penetrate into the floating slab through the cracks to form water accumulation. The pre-buried water-stop joint can integrate the water-stop joint with the floating slab concrete. The junction is complete and free of cracks, which can prevent water accumulation inside the bay window cavity, water accumulation in the air-conditioning unit position, and water diverted on the surface of the drainage riser from entering the floating slab concrete and causing water accumulation, thereby increasing the humidity inside the bay window cavity and causing mildew on the walls of the bay window cavity.

[0110] By setting a flexible joint at the drainage riser in the air-conditioning unit, the drainage riser can be flexibly connected. The flexible joint has good sealing performance and is easy to install and disassemble, which facilitates the later maintenance of the drainage riser and saves maintenance costs.

[0111] (3) Improved construction accuracy and efficiency: Standardized pre-embedded positioning: The water stop is pre-embedded before concrete pouring, and the flange side is precisely aligned with the lower side of the floating plate. The template positioning technology is used to ensure that the pipe opening height is consistent, such as "the pipe opening of the first water stop is flush with the upper side of the lower floating plate, and the pipe openings of the two second water stop joints are higher than the upper side of the upper floating plate". Compared with the later opening without pre-embedded holes, the positioning error of the manual opening and the installation height error of the water stop can be significantly reduced, and the bonding strength between the pre-embedded water stop and the floating plate concrete is higher.

[0112] Modular installation: By using standardized interfaces for components such as water supply tees and flexible joints, during construction, you only need to apply glue in sequence to seal the connections, which simplifies the operation process, reduces dependence on workers' skills, and ensures the reliability of the connection, making it easier to achieve standardized construction, resulting in better construction effects and reducing the proportion of water seepage in the pipe structure in the dark cavity of the bay window in the building.

[0113] (4) Breakthrough in maintenance convenience: Multifunctional use of the diversion gap: The gap between the drainage riser and the first water stop has both diversion and maintenance functions. Due to the large size of the diversion gap, a flashlight or camera can be inserted through the gap to observe the blockage and water accumulation of the bay window cavity, or use an endoscope to observe the situation inside the bay window cavity. When repairs are needed, the water pipe can be inserted to clean directly, without destroying the rear brick wall of the bay window cavity, and quick repairs can be carried out.

[0114] Independent maintenance of bay window cavities on each floor of the building: The drainage risers of the bay window cavities on each floor are independently connected. When a single-layer failure occurs, it can be repaired by simply dismantling the corresponding joints. This avoids the disadvantage of traditional concealed pipes that "one move affects the entire body", reduces the time for maintenance and repair, improves maintenance efficiency and reduces maintenance costs.

[0115] (5) Long-term cost reduction: Reduce maintenance frequency: The dual-channel drainage structure can effectively reduce the probability of blockage inside the drainage riser and the diversion gap. Combined with moisture-proof materials and sealing technology, it can keep the humidity in the bay window cavity within the standard, thereby avoiding the problem of moisture and mildew on the bay window cavity wall on the bedroom side, significantly extending the service life of the wall skin and reducing the long-term decoration cost; it also significantly extends the life of the pipeline and reduces the subsequent maintenance cost.

[0116] Energy saving and environmental protection: the diversion gap relies on natural gravity to discharge the water in the dark cavity of the bay window, and the outer wall of the drainage riser relies on gravity to divert the condensation or seepage on the surface of the water pipe. There is no need to add energy-consuming equipment such as water pumps, which meets the requirements of green buildings.

[0117] Regarding the parameters of the above-mentioned various standard pipe fittings, the first water stop joint, the second water stop joint, the drainage riser, the flexible joint, the water supply tee, and the water supply pipe are all PVC pipe products.

[0118] Among them, the first water stop joint is a PVC water stop joint with a diameter of 110mm; the two second water stop joints are both PVC water stop joints with a diameter of 50mm; the drainage riser is a PVC drainage pipe with a diameter of 50mm; the flexible joint is a PVC flexible joint with a diameter of 50mm; the water supply tee is a PCV tee with a diameter of 50*50*20mm; and the water supply pipe is a PVC water pipe with a diameter of 20mm.

[0119] The second embodiment of the air conditioning condenser tube dark cavity installation construction method is as follows Figure 5 As shown, the difference between this embodiment and the first embodiment is that it also includes a water guide plate; a water guide plate is hung at the vertical section where the water supply pipe penetrates the second water stop joint and at the drainage riser below the water supply tee, so as to divert water from the outer wall of the water supply pipe to the outer wall of the drainage riser, so as to avoid dripping leakage in the dark cavity of the bay window after leakage of the water supply pipe.

[0120] When in use, the water guide plate can reliably ensure that when condensation appears on the surface of the water supply pipe due to the low temperature of the air-conditioning condensed water or the water supply pipe leaks, the water generated on the surface of the water supply pipe or the leaked water will all be diverted to the drainage riser and diverted along the outer wall of the drainage riser to the air-conditioning unit for drainage or evaporation, so that the bay window cavity, the lower floating board and the wall remain dry, thereby controlling the humidity of the bay window cavity wall, avoiding the wall peeling, cracking or mildew of the bedroom wall surface, and further preventing water seepage and water storage in the bay window cavity in a more reliable way.

[0121] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described.

Claims

1. A method for installing a dark cavity of an air conditioning condenser pipe, characterized in that: Including S1, pipeline pre-buried construction steps: S1.1, the first water stop joint is embedded in the lower floating plate during concrete pouring, and the base of the first water stop joint is located on the lower side of the lower floating plate, and the pipe opening of the first water stop joint is flush with the upper side of the lower floating plate; S1.2, two second water stop joints, the second water stop joints are embedded in the upper floating plate during concrete pouring, and the base of the second water stop joint is located on the lower side of the upper floating plate, and the pipe opening of the second water stop joint is higher than the upper side of the upper floating plate; S2. Pipeline installation construction steps: S2.1, a drainage riser, the drainage riser passes through the first water stop joint to reach the upper floating plate, and is sealed and connected to a pipe opening of the second water stop joint; The diameter of the first water stop joint is two levels larger than the diameter of the drainage riser, and a diversion gap is formed between the first water stop joint and the drainage riser. The diversion gap and the outer wall of the drainage riser are used for the drainage riser to pass through, and then the water in the dark cavity of the upper bay window in the building and the water outside the water supply pipe are diverted from top to bottom along the diversion gap and the outer wall of the drainage riser to the ground of the air conditioner position, so as to volatilize the accumulated water or divert the accumulated water to the outside of the building; S2.2, installing a union, wherein both ends of the union are sealed and connected to the drainage riser; S2.3, water supply tee, the water supply tee is arranged in the dark cavity of the bay window below the upper floating plate; the vertical two side pipe openings of the water supply tee are respectively sealed and connected with the two ends of the drainage riser of the next layer; S2.4, a water supply pipe, wherein the diameter of the water supply pipe is smaller than the second water stop joint, one end of the water supply pipe passes through and extends out of the other second water stop joint, and the other end of the water supply pipe is sealed and connected to the transverse pipe opening of the water supply tee.

2. The method for installing the dark cavity of the air conditioner condenser pipe according to claim 1, characterized in that: The first water stop joint, the second water stop joint, the drainage riser, the flexible joint, the water supply tee, and the water supply pipe are all made of PVC pipes.

3. The method for installing the dark cavity of the air conditioner condenser pipe according to claim 1, characterized in that: In step S2.4, the angle between the two ends of the water supply pipe is greater than 90 degrees, which is used to guide the condensed water through the water supply pipe to the water supply tee, and the water supply tee then guides the condensed water to the drainage riser; S2.

5. After the water supply pipe is installed to the second water stop joint and the water supply tee, at the air conditioner position, on the upper side of the upper floating plate, use weather-resistant glue to fill and seal the gap between the inner wall of the second water stop joint and the outer wall of the water supply pipe.

4. The method for installing the dark cavity of the air conditioner condenser pipe according to claim 3, characterized in that: It also includes air conditioning reserve casing; S1.3, Construction steps for pre-buried reserved casing of air conditioner: S1.

31. Before pouring the wall concrete, install the air conditioning reserved sleeve according to the construction drawing by using plastic or steel support, and tilt the two ends of the air conditioning reserved sleeve from high to low along the indoor wall side of the bedroom toward the outdoor air conditioning unit wall side, requiring the air conditioning reserved sleeve to tilt outward by 5%; S1.

32. After the installation of the air conditioning reserved casing is completed, cover the two ends of the air conditioning reserved casing with end caps; S1.33, install the wall formwork, wrap the reserved air conditioning casing into the wall formwork, and then pour concrete; S1.

34. After the concrete pouring is completed, remove the end cover of the air conditioning reserved casing.

5. The method for installing the dark cavity of the air conditioner condenser pipe according to claim 3, characterized in that: It also includes a preset waterproof structure for the air conditioner position, a drip groove is arranged on the lower side of the lower floating plate, and the drip groove is arranged near the entrance of the air conditioner position; S1.4, Pre-set waterproof structure for air conditioner position: S1.

41. Before pouring concrete, install the template of the drip groove on the template of the lower side of the lower floating plate according to the preset position of the drawing; S1.

42. After the concrete is cast, the lower side template of the floating plate is removed, and then the template of the drip groove is removed, so as to form the drip groove integrally cast on the lower side of the floating plate.

6. The method for installing the dark cavity of the air conditioner condenser pipe according to claim 5, characterized in that: Also includes S3, floor and wall waterproofing steps: S3.

1. For the floors and walls of air conditioner locations and bay window cavities, use angle grinders and wire brushes to clean the slurry on the concrete base, with a focus on cleaning the pipe roots and corners that penetrate the wall to prevent water from penetrating and gathering at the pipe roots and corners; S3.

2. Use cement mortar to plaster and set a 2% drainage slope on the ground of the air conditioner toward the entrance; Use cement mortar to plaster and set a 2% drainage slope on the side of the lower floating board of the bay window cavity from all sides toward the first water stop joint; S3.

3. Use waterproof paint to paint the pipe roots and gaps at the corners of the air conditioner and the bay window cavity; waterproof the upper floating board of the window to 300mm high on the surrounding wall and onto the PVC water pipe to prevent rainwater from leaking into the room or the cavity; S3.

4. Seal the bay window cavity by building a brick wall at the back, make a 200mm high concrete wall pad at the bottom of the brick wall, and apply waterproof coating within 300mm high range at the bottom of the cavity to prevent a small amount of water from leaking into the room when there is a small amount of water at the bottom.

7. The method for installing the dark cavity of the air-conditioning condenser pipe according to claim 6, characterized in that: It also includes installing removable shutters for waterproof enclosure at the entrance of the air-conditioning unit; S4, after the ground and wall waterproofing is completed in step S3, the shutter is installed at the entrance of the air conditioner position, and the shutter is detachably installed behind the drip groove to enclose the entrance of the air conditioner position and prevent typhoon rainwater from entering the air conditioner position; S4.

1. A drainage gap is left between the lower side of the louver and the ground of the air conditioner.

8. The method for installing the dark cavity of the air conditioner condenser pipe according to claim 7, characterized in that: Also includes S5, waterproofing steps for air conditioner installation: S5.1, remove the shutters, install the air conditioner outdoor unit on the air conditioner position, and the fan of the air conditioner outdoor unit supplies air toward the entrance of the air conditioner position; S5.

2. Wrap the condenser copper tube of the air conditioner with a rubber-plastic insulation tube and wrap it with two layers of air conditioner cable ties to prevent the rubber-plastic insulation tube from loosening or falling off during use. At the same time, use the air conditioner cable ties to wrap a section of the drain pipe close to the air conditioner indoor unit, pass the condenser copper tube and the drain pipe from the room through the reserved air conditioner casing to the air conditioner position, connect the condenser copper tube to the air conditioner outdoor unit, and seal the drain pipe to the water supply pipe; S5.

3. Wrap a layer of air conditioning tie around the outer side of the extended section of the drainage pipe extending from the air conditioning reserved sleeve to the water supply pipe to prevent the extended section of the drainage pipe from aging and leaking; S5.

4. After passing the condenser copper tube and the drain pipe through the air-conditioning reserved casing, fill the air-conditioning reserved casing on the bedroom side with thermal insulation foam glue, and fill the anti-mildew sealant outside the foam glue; fill the air-conditioning reserved casing on the air-conditioning unit side with weather-resistant glue.

9. The method for installing the dark cavity of the air conditioner condenser pipe according to claim 1, characterized in that: It also includes a water guide plate; the water guide plate is hung at the vertical section where the water supply pipe penetrates the second water stop joint and at the drainage riser below the water supply tee, and is used to guide the water on the outer wall of the water supply pipe to the outer wall of the drainage riser, so as to avoid dripping leakage in the dark cavity of the bay window after the water supply pipe leaks.

10. The method for installing the dark cavity of the air conditioner condenser pipe according to claim 1, characterized in that: In step S1, when pre-burying the first water-stop joint and the second water-stop joint connected to the drainage riser, it is necessary to use a hanging line to position them to ensure the coaxiality and verticality of the first water-stop joint and the second water-stop joint, so that there is a gap between the outer wall of the installed drainage riser and the inner wall of the first water-stop joint, so as to prevent the water guided by the drainage riser from contacting the inner wall of the first water-stop joint and diffusing to the lower floating plate.

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