一种混凝土透气系数测定仪气压平衡装置

Abstract

本实用新型公开了一种混凝土透气系数测定仪气压平衡装置，包括空气压缩机、输气管、恒压容器、胶管、四通密封盖、气压室、试块和U形透气仪，空气压缩机通过输气管与恒压容器相连接，空气压缩机和恒压容器上均安装有气压表一，恒压容器通过胶管与四通密封盖相连接，输气管和胶管上均安装有气阀，四通密封盖位于气压室的顶部且包括四通连接头、泄压阀、气压阀、气压表二和密封盘，胶管、泄压阀、气压阀和气压表二分别安装于四通连接头的四个连接端上，四通连接头的下端穿过密封盘的中心处，密封盘通过螺栓固定于气压室的顶部，试块内置于气压室内。本实用新型所设计的改进型混凝土透气系数测定设备可以有效提高试验精度和降低安全风险。

Claims

1. A gas pressure equalizing device for a concrete permeability meter, characterized by: The system includes an air compressor (1), an air supply pipe (2), a constant pressure container (3), a rubber hose (4), a four-way sealing cap (5), a pressure chamber (6), a test block (7), and a U-shaped air permeator (8). The air compressor (1) is connected to the constant pressure container (3) via the air supply pipe (2). Both the air compressor (1) and the constant pressure container (3) are equipped with pressure gauges (9). The constant pressure container (3) is connected to the four-way sealing cap (5) via the rubber hose (4). Both the air supply pipe (2) and the rubber hose (4) are equipped with air valves (10). The four-way sealing cap (5) is located at the top of the pressure chamber (6) and includes a four-way connector (11) and a pressure relief valve. Valve (12), air pressure valve (13), air pressure gauge (14) and sealing plate (15), the hose (4), pressure relief valve (12), air pressure valve (13) and air pressure gauge (14) are respectively installed on the four connecting ends of the four-way connector (11), the lower end of the four-way connector (11) passes through the center of the sealing plate (15), the sealing plate (15) is fixed to the top of the air pressure chamber (6) by bolts, the test block (7) is built into the air pressure chamber (6), the bottom of the air pressure chamber (6) is provided with an air hole (16), the air hole (16) is located directly below the test block (7) and is connected to the U-shaped air permeator (8) through a pipe.

2. The air pressure balancing device for a concrete permeability coefficient measuring instrument according to claim 1, characterized in that: The hose (4) is installed at the left end of the four-way connector (11), the pressure relief valve (12) is installed at the front end of the four-way connector (11), the air pressure valve (13) is installed at the lower end of the four-way connector (11), and the air pressure gauge (14) is installed at the upper end of the four-way connector (11).

3. The air pressure equalizing device for a concrete permeability coefficient measuring instrument according to claim 1, characterized in that: The sealing disc (15) has a disc-shaped structure and several sets of threaded holes (17) are opened on its surface. The several sets of threaded holes (17) are distributed in a ring and are fixed to the top of the air pressure chamber (6) by bolts.

4. The air pressure equalizing device for a concrete permeability tester according to claim 3, characterized in that: The air pressure chamber (6) is a sealed structure and the sealing material is a steel membrane.

5. The air pressure equalizing device for a concrete permeability tester according to claim 4, characterized in that: The outer surface of the test block (7) is coated with a sealing coating (18) and two sets of steel rings (19) are provided at the bottom. The test block (7) is fixed in the air pressure chamber (6) by the steel rings (19).

6. The air pressure equalizing device for a concrete permeability tester according to claim 5, characterized in that: The U-shaped air ventilator (8) has a U-shaped tubular structure and is vertically installed on one side of the pressure chamber (6).

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