A spraying device for water tightness test of construction engineering site

Abstract

The utility model provides a kind of spraying device for building engineering site water tightness test, including main water pipe, at least one spray pipe, multiple spray heads, at least one tee connector and water pressure gauge;When applied, one end of the main water pipe is connected to water supply source, the water pressure gauge is located on the main water pipe close to the position of water supply source, the tee connector is spaced apart on the main water pipe;One end of the spray pipe is connected with tee connector, and the other end is closed or connected with other spray pipe;The spray head is spaced apart on the spray pipe;The water pressure of the water supply end of the main water pipe is adjusted within the range of 0-0.2MPa.The utility model not only meets the spraying requirements of test standard, but also can be easily disassembled and freely combined and matched, adapt to different test areas and complex site environment, greatly save test equipment cost.

Description

Technical Field

[0001] This utility model relates to the technical field of spray equipment for on-site water tightness testing in building engineering. Background Technology

[0002] The quality of building construction is crucial to the safety, performance, and user comfort of a building throughout its entire lifespan. To ensure quality, various tests and inspections of building products are necessary both in third-party laboratories and on-site throughout the construction period. Because products like building doors, windows, and curtain walls are system structures, there are differences between laboratory installation and on-site installation. On-site installation also involves variations in installation conditions, the skill level of installers, and other on-site factors. Therefore, conducting various tests, such as airtightness and watertightness tests, on the system and its installation after the completion of building doors, windows, and curtain walls is a vital means of ensuring project quality. However, the indoor and outdoor conditions and operational safety requirements of the construction site place high demands on the testing. To ensure accurate testing conditions, complete tests, and provide effective test data on-site, effective supporting testing equipment is required.

[0003] Currently, on-site testing methods for the water tightness of building systems such as doors, windows, and curtain walls include "JG / T 211 On-site Testing Methods for Air Tightness, Water Tightness, and Wind Pressure Resistance of Building Exterior Windows" and "ASTM E1105 On-site Determination of Water Tightness of Installed Exterior Windows, Skylights, Doors, and Curtain Walls under Uniform or Periodic Static Air Pressure Differences." These methods specify the limits for the spray volume per unit area and per unit time that the spraying device should achieve for on-site water tightness testing, but they do not describe the construction and material selection of the spraying device. Utility Model Content

[0004] The purpose of this utility model is to solve the existing technical problems and provide a spray device for on-site water tightness testing of building engineering projects, which can conveniently and quickly carry out on-site water tightness testing.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A spray device for on-site water tightness testing in construction projects includes a main water pipe, at least one spray pipe, multiple nozzles, at least one tee connector, and a water pressure gauge; in application, One end of the main water pipe is connected to the water supply source, the water pressure gauge is installed on the main water pipe near the water supply source, and the tee connectors are spaced apart on the main water pipe. One end of the spray pipe is connected to a tee connector, and the other end is closed or connected to other spray pipes; The nozzles are spaced apart on the spray pipe; The water pressure at the supply end of the main water pipe can be adjusted within the range of 0-0.2MPa.

[0006] Furthermore, the length of each section of the main water pipe and the sprinkler pipe does not exceed 1.8 meters. Even further, the main water pipe is made of PVC and has a diameter of 50mm-60mm; a sealed plug is installed at the end of the main water pipe furthest from the water source; and a PVC union ball valve is connected in series on the main water pipe.

[0007] Furthermore, the main water pipe and the tee connector, as well as the spray pipe and the tee connector, are all connected by metal threaded connectors.

[0008] Furthermore, the spray pipe is made of PPR material with a diameter of 15mm-30mm; even further, both ends of the spray pipe are equipped with stainless steel male and female connectors, and the spray pipe is connected to the interface of the tee connector through the stainless steel male and female connectors.

[0009] Furthermore, the nozzle is a 2-point stainless steel nozzle with an orifice diameter of 1.6mm.

[0010] Furthermore, the tee connector is made of PVC material, and each interface is provided with a stainless steel threaded end. The metal connector is used in conjunction with the stainless steel threaded end to achieve a threaded connection.

[0011] Furthermore, the water pressure at the supply end of the main water pipe is in the range of 0.03-0.1 MPa.

[0012] The above-mentioned spray device for water tightness testing at the construction site also includes a water supply hose, one end of which is connected to the main water pipe 1 and the other end is connected to the water supply source; furthermore, the water supply hose 6 is a high-pressure woven canvas hose.

[0013] The beneficial effects of this utility model are: The spray device for on-site water tightness testing in construction projects provided by this utility model not only meets the spray requirements of testing standards, but also can be easily and quickly adapted to complex on-site environments. Its main advantages are as follows: 1. Excellent portability: All components can be disassembled into single rod-shaped or small parts ≤1.8 meters long, which can be bagged and carried, solving the problem of inconvenient transportation on construction sites; 2. Highly efficient assembly and disassembly: Each component can be connected to a stainless steel threaded connector via metal connectors, making assembly / disassembly convenient whether in the laboratory or on-site. Furthermore, the number of spray pipes and T-connectors can be adjusted to accommodate different test area requirements. 3. Safety and compatibility: Both the main water pipe and the sprinkler pipe can be made of lightweight materials, making them easy to fix on the aerial work platform or temporary support, suitable for on-site high-altitude operations; the materials have good toughness and are not easily damaged by on-site collisions; 4. Standardized and compliant: The nozzle orifice diameter, water pressure adjustment range, and nozzle distribution can all be standardized to ensure the validity and repeatability of test data.

[0014] 5. Low cost: Due to its easy disassembly, assembly, and free combination, it is convenient to move, adaptable, and can be used repeatedly for a long time, which greatly saves the cost of testing equipment.

[0015] The following describes specific embodiments of this utility model with reference to the accompanying drawings: Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a spray device for on-site water tightness testing in construction engineering, provided by an embodiment of this utility model.

[0017] Explanation of reference numerals in the attached figures: 1. Main water pipe, 2. Sprinkler pipe, 3. Sprinkler head, 4. T-connector, 5. Water pressure gauge, 6. Water supply hose Detailed Implementation

[0018] The specific embodiments described herein are merely illustrative of the technical solutions of this patent and are not intended to limit the disclosed technical solutions. It should also be noted that, for ease of description, the accompanying drawings show only the parts relevant to the technical solutions of this application, and not the entire structure.

[0019] Before discussing the exemplary embodiments in more detail, it should be mentioned that the structure of the device components and / or modules mentioned in the embodiments, unless otherwise described in detail, is something that can be understood by those skilled in the art based on existing public technologies or is a commercially available product.

[0020] This embodiment provides a spray device for on-site water tightness testing in construction engineering, including a main water pipe 1, at least one spray pipe 2, multiple nozzles 3, at least one T-connector 4, and a water pressure gauge 5. In application, one end of the main water pipe 1 is connected to a water supply source, the water pressure gauge 5 is installed on the main water pipe 1 near the water supply source, and the T-connectors 4 are spaced apart on the main water pipe 1. One end of the spray pipe 2 is connected to the T-connector 4, and the other end is closed or connected to other spray pipes. The nozzles 3 are spaced apart on the spray pipe 2. The water pressure at the water supply end of the main water pipe is adjustable within the range of 0-0.2 MPa.

[0021] Conducting watertightness tests on construction sites requires fixing the spray system to the outdoor side of the door and window samples being tested. When there is a platform or the outdoor side is close to the ground, scaffolding or a support frame can be used for fixation; when the outdoor side is far from a platform or the ground, an aerial work platform or suspended platform is needed. Regardless of the method, safety must be fully considered, so the device needs to be lightweight, sturdy, easy to fix, and convenient to install and disassemble. Furthermore, construction sites are generally far from laboratories, and there are many restrictions on transporting heavy objects on-site.

[0022] Therefore, the preferred solution is that the length of each section of the main water pipe 1 and the sprinkler pipe 2 is ≤1.8 meters for easy carrying. The main water pipe 1 is made of lightweight and corrosion-resistant PVC material, and to ensure water supply, a PVC pipe with a diameter of 50mm-60mm is preferred. In addition, to control water flow interruption, a PVC union ball valve is connected in series on the main water pipe 1; a sealed plug is installed at the end of the main water pipe 1 away from the water source to prevent leakage.

[0023] Sprinkler pipe 2 is a water distribution and spraying component. It connects to the main water pipe via a tee connector, and the other end is closed or extended to connect to other sprinkler pipes. PPR material pipes with good toughness and light weight are preferred, with a diameter of 15mm-30mm to match the sprinkler head flow rate. To improve connection stability and ease of assembly and disassembly, the preferred solution is to install stainless steel male and female connectors at both ends of sprinkler pipe 2, which connect to the tee connector.

[0024] Sprayer 3 is the actuating component, installed at intervals on the spray pipe. Durable 2-point stainless steel nozzles are preferred, with an orifice diameter of 1.6mm, to ensure the spray volume meets standards.

[0025] The tee connector 4 is a connecting and transfer component, and a lightweight PVC tee is preferred. A further preferred option is to have stainless steel threaded connections at each interface of the tee connector 4, which, in conjunction with metal connectors, achieve a threaded connection, allowing for efficient assembly and disassembly. The main water pipe 1 and the tee connector 4, as well as the sprinkler pipe 2 and the tee connector 4, are all connected via threaded metal connectors.

[0026] The pressure gauge is a pressure monitoring component that displays the water supply pressure in real time, ensuring that the pressure is adjustable within the range of 0-0.2 MPa. To balance testing accuracy and safety, the water pressure range at the supply end of the main water pipe 1 can be further controlled within 0.03-0.1 MPa.

[0027] To adapt to the complex environment of construction sites, a water supply hose 6 can be further configured. One end of the water supply hose 6 is connected to the main water pipe 1, and the other end is connected to the water supply source (such as an on-site water tank, booster pump, etc.). The water supply hose 6 is preferably made of high-pressure braided canvas hose that is wear-resistant, easy to bend, and easy to seal.

[0028] The following is a reference appendix. Figure 1 The connection method is adapted for testing small and medium-sized doors and windows. An application example 1 is given.

[0029] The component specifications are as follows: Main water pipe: PVC material, pipe diameter 50mm, single section length 1.5 meters, PVC sealed plug at the right end, and 1 PVC union ball valve installed on the pipe; Sprinkler pipe: PP material, pipe diameter 20mm, single section length 1.2 meters, 2 pipes in total, each pipe is equipped with stainless steel male and female connectors at both ends; Spray nozzles: 2-point stainless steel nozzles, 1.6mm orifice, 4 nozzles per spray pipe (0.4m spacing), 8 nozzles in total; Tee connector: PVC material, with stainless steel threaded end, 2 pieces in total; Water supply pipe: high-pressure braided canvas water hose, 8 meters in length; Water pressure gauge: range 0-0.25MPa, accuracy 0.01MPa.

[0030] Assembly and usage steps: Laboratory calibration: Assemble the device, connect the water supply source (booster pump), open the PVC union ball valve, adjust the water pressure to 0.05MPa (normal pressure), and calibrate the spray volume to meet the requirements of "JG / T 211" or "ASTM E1105". After calibration, disassemble each component, pack it into a 1.8m×0.5m×0.3m cloth bag, and transport it to the site.

[0031] On-site preparation and assembly: On-site inspection: The testing personnel conduct an on-site inspection of the project site, inspect the appearance of the test samples (to ensure there are no defects or abnormalities), and operate the sample's switch and locking functions (to ensure there are no abnormalities). Device assembly: Place the main water pipe on the guardrail of the aerial work platform, and screw the two T-connectors into the main water pipe (0.8 meters apart) using metal connectors; then connect the stainless steel male and female connectors of the two spray pipes to the lower interface of the T-connectors and screw them into the spray heads; finally, connect the water supply pipe to the main water pipe and install the water pressure gauge. Device securing: Secure the main water pipe and spray pipe to the guardrail of the aerial work platform with nylon cable ties, ensuring that the distance between the device and the outer surface of the doors and windows is consistent with the distance from the calibration box during laboratory calibration.

[0032] On-site testing: The sample is sealed in a temporary test chamber, and a centrifugal fan, an air flow meter, a differential pressure gauge and the test chamber are connected (to maintain the pressure difference between the inside and outside of the chamber). Turn on the water supply and adjust the water pressure to the calibrated pressure value (e.g., 0.05MPa). Pressurize the air pressure inside the test chamber to the specified pressure and stabilize it within 15 seconds. Observe whether there is any water leakage inside the sample chamber within the specified time limit. If no water seepage is observed in the sample, the test is complete; if water seepage is observed, record the location of the seepage, the test time, take photos and videos, and stop the equipment and spray device; if a dynamic water tightness test process is used, adjust the pressurization process as required.

[0033] Recycling and dismantling: After the test is completed, the sealed box and spray device are removed, and the nozzles, spray pipes, T-connectors and main water pipes are removed in sequence. After cleaning the residual water, they are put into cloth bags for recycling and transportation.

[0034] Application Example 2 (Testing for Large-Size Curtain Walls) Compared to application example 1, only the following adjustments are made: The number of sprinkler pipes has increased to 4, the number of T-connectors has increased to 4, and the main water pipe uses 2 sections of PVC pipe, each 1.8 meters long, connected in series by T-connectors; The number of nozzles has been increased to 16 (4 nozzles per spray pipe); The length of the water supply pipe has been increased to 12 meters to accommodate the testing range of the curtain wall.

[0035] This application example can cover curtain wall testing within 10m², is easy to install and disassemble, and meets the needs of efficient on-site testing.

[0036] Precautions: When connecting components, the sealing performance must be checked to avoid water leakage affecting the test; Water pressure should be adjusted slowly to prevent sudden pressure increases from damaging the nozzles. Safety precautions must be taken during on-site testing to prevent workers from climbing and coming into contact with the spray area.

[0037] Those skilled in the art should understand that the scope of protection of this utility model is not limited to the specific technical descriptions shown in the above embodiments and application examples. The above embodiments and application examples are intended to illustrate the application principle of the technical solution of this utility model. Without departing from the construction principle of this utility model, those skilled in the art can make various changes and modifications, and these changes and modifications all fall within the scope of the technical solution claimed by this patent.

Claims

1. A spray device for on-site water tightness testing in construction engineering, characterized in that: Includes a main water pipe (1), at least one sprinkler pipe (2), multiple sprinkler heads (3), at least one tee connector (4), and a water pressure gauge (5); In application, One end of the main water pipe (1) is connected to the water supply source, the water pressure gauge (5) is installed on the main water pipe (1) near the water supply source, and the three-way connector (4) is spaced on the main water pipe (1). One end of the spray pipe (2) is connected to the tee connector (4), and the other end is closed or connected to other spray pipes; The nozzles (3) are spaced apart on the spray pipe (2); The water pressure at the supply end of the main water pipe can be adjusted within the range of 0-0.2MPa.

2. The spray device for on-site water tightness testing in construction engineering as described in claim 1, characterized in that: The length of each section of the main water pipe (1) and the spray pipe (2) does not exceed 1.8 meters.

3. The spray device for on-site water tightness testing in construction engineering as described in claim 1, characterized in that: The main water pipe (1) is made of PVC material with a diameter of 50mm-60mm.

4. The spray device for on-site water tightness testing in construction engineering as described in claim 1, characterized in that: A PVC union ball valve is connected in series on the main water pipe (1), and a sealed plug is provided at the end of the main water pipe (1) away from the water supply source.

5. The spray device for on-site water tightness testing in construction engineering as described in claim 1, characterized in that: The main water pipe (1) and the tee connector (4), and the spray pipe (2) and the tee connector (4) are all connected by metal connector threads.

6. The spray device for on-site water tightness testing of building engineering as described in claim 1, characterized in that: The spray pipe (2) is made of PPR material and has a diameter of 15mm-30mm.

7. The spray device for on-site water tightness testing of building engineering as described in claim 1, characterized in that: Both ends of the spray pipe (2) are provided with stainless steel male and female direct connectors, and the spray pipe (2) is connected to the interface of the tee connector through the stainless steel male and female direct connectors.

8. The spray device for on-site water tightness testing of building engineering as described in claim 1, characterized in that: The nozzle (3) is a 2-point stainless steel nozzle with an orifice diameter of 1.6mm.

9. The spray device for on-site water tightness testing of building engineering as described in claim 5, characterized in that: The three-way connector (4) is made of PVC and each interface is provided with a stainless steel thread. The metal connector and the stainless steel thread cooperate to achieve a threaded connection.

10. The spray device for on-site water tightness testing in construction engineering as described in claim 1, characterized in that: The water pressure at the supply end of the main water pipe (1) is in the range of 0.03-0.1 MPa.

11. The spray device for on-site water tightness testing of building engineering projects as described in any one of claims 1-10, characterized in that: It also includes a water supply hose (6), one end of which is used to connect to the main water pipe (1), and the other end is used to connect to the water supply source.

12. The spray device for on-site water tightness testing in construction engineering as described in claim 11, characterized in that: The water supply hose (6) is a high-pressure woven canvas hose.

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