Gland and air chamber assembly

Abstract

The present invention belongs to the field of air chamber technology. The present invention provides a gland, comprising a gland air inlet, an air outlet, a bottom fixing port, an upper fixing port, and an air pipeline; the gland air inlet is arranged in the middle of the front of the gland; the air outlet is arranged on both sides of the gland; an air pipeline is also arranged inside the gland, and the air pipeline outlet is arranged in front of the window piece; the bottom fixing port is arranged at the lower part of the gland; and the upper fixing port is arranged at the upper part of the gland. In the device of the present invention, the window piece does not require screw fasteners, and an ordinary maintenance worker can complete the replacement of the window piece without any tools, only with the window piece. The window piece replacement structure integrates a purge function to avoid window piece contamination caused by aging of the equipment itself.

Description

Technical Field

[0001] The invention belongs to the technical field of air chambers. Background Art

[0002] During the use of online optical gas analyzers, when the detected gas is viscous, the window is easily contaminated by the detected gas; or when the gas chamber temperature suddenly drops after a sudden power outage, the measured gas in the gas chamber condenses or crystallizes on the window, causing contamination.

[0003] For high-temperature optical instruments, components in the high-temperature area outside the gas chamber work for a long time, which may lead to aging problems. The viscous gas will then evaporate and adhere to the window, causing window contamination.

[0004] When the window is contaminated, the light emitted by the light source cannot be effectively transmitted through the gas chamber to the spectral analysis system, making it impossible for the equipment to correctly analyze the actual content of the measured gas.

[0005] Most optical analysis instruments fix the lenses around or inside the gas chamber, aim the light source at the window at the gas chamber entrance, and the receiving end of the spectral analysis system at the window at the gas chamber exit. In addition, window replacement requires disassembly of many parts, and ordinary maintenance personnel cannot complete on-site window replacement, so the window needs to be returned to the original manufacturer for replacement. Summary of the Invention

[0006] In view of this, the present invention provides a gland, comprising a gland air inlet, an air outlet, a bottom fixed port, an upper fixed port, and an air pipeline; the gland air inlet is arranged in the middle of the front of the gland; the air outlet is arranged on both sides of the gland; an air pipeline is also arranged inside the gland, and the air pipeline outlet is arranged in front of the window piece; the bottom fixed port is arranged at the lower part of the gland; and the upper fixed port is arranged at the upper part of the gland.

[0007] The present invention also provides an air chamber device, comprising: a pressure cover, a hinge, a window plate carrier, an air chamber, a slider assembly, a valve block, and a base; the pressure cover is fixedly connected to the two sides of the lower part of the air chamber through a bottom fixing port and a rotating shaft; the two sides of the upper part are connected through a hinge with one end fixed to the upper fixing port and the other end fixed to the air chamber; the pressure cover and the valve block are connected through a slider assembly; one end of the slider assembly is rotatably fixed to the air path inlet of the pressure cover and is air-connected; the slider assembly has an air path channel in the middle and is retractable; the valve block is provided with a purge air inlet and an air path channel and is rotatably fixed to the air path channel of the slider assembly and is air-connected; the air chamber and the valve block are both fixed on the base.

[0008] In a specific embodiment of the present invention, a window piece carrier is provided in the middle of the two hinges; two window piece fixing openings are provided on the window piece carrier; the opening size of the window piece fixing opening on the side adjacent to the air chamber is smaller than the size of the window piece, and the opening size on the other side is set to match the size of the window piece.

[0009] The present invention further provides a method for replacing a window piece in an air chamber device, comprising the following steps: opening a pressure cover, fully opening the pressure cover under the connection of two hinges, and simultaneously being stuck under the action of the telescopic thrust of a slider assembly; with the opening size of the window piece carrier matching the size of the window piece and one side facing upward, the window piece is removed with the aid of a vacuum suction cup, and then a new window piece is replaced with the aid of the vacuum suction cup and pushed upwards, and the pressure cover is closed, and the pressure cover is pressed tightly against the air chamber under the thrust of the telescopic slider assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the gland gas path.

[0011] Figure 2 This is the gland gas circuit diagram.

[0012] Among them: 1 is the gland gas inlet, 2 is the gas outlet, and 5 is the gas pipeline.

[0013] Figure 3 It is a schematic diagram of the air chamber device.

[0014] 101 is the gland, 2 is the gas outlet, 102 is the hinge, 103 is the air chamber, 104 is the slider assembly, 105 is the valve block, and 106 is the base.

[0015] Figure 4 This is a diagram of the air chamber device. DETAILED DESCRIPTION

[0016] Example 1

[0017] The solution of the present invention is to design the window piece to be easy to replace. When the measured gas inside the air chamber contaminates the window piece, the window piece can be replaced. The present invention also adds a purge function to the window piece to prevent the equipment from aging and contaminating the window piece, thereby extending the service life of the lens.

[0018] Window: Installed around or inside the gas chamber, it isolates the gas detected in the gas chamber from the external environment while allowing 100% of the light emitted by the light source to pass through the gas chamber cavity.

[0019] Light source: the transmitting end of the optical signal.

[0020] Contamination: Attachments reduce the light transmittance of the window.

[0021] Spectral analysis system: compares the light signals before and after the measured gas is absorbed and calculates the content of the measured gas.

[0022] Crystallization: Gas solidifies due to a decrease in temperature, changing from a gaseous state to a solid state.

[0023] The device provided by the present invention is easy to replace and does not require screw fastening, making on-site replacement convenient. The device of the present invention also has a purge function to avoid pollution caused by aging of the equipment itself.

[0024] The air chamber device provided by the present invention comprises an air chamber, a gland, a slider assembly, a valve block and a base.

[0025] The gland is rotatably connected to the air chamber via two bottom fixing openings and a rotating shaft. Its upper sides are connected by hinges, one end of which is fixed to the upper fixing opening and the other end is fixed to the air chamber. A window carrier is located between the two hinges and has two window fixing openings. The opening of the window fixing opening on the side adjacent to the air chamber is smaller than the window, ensuring that the window is fixed therein. The opening on the other side of the window fixing opening matches the size of the window, allowing the window to be installed and removed. When replacing the window, the window carrier is connected to the air chamber gland by the hinges on both sides.

[0026] The gland and valve block are connected via a slider assembly. One end of the slider assembly is rotatably fixed to the gland's gas inlet and connected to the gas path. A gas path is defined in the center of the slider assembly. The slider assembly is retractable, allowing the gland to press the window carrier against the end face of the air chamber or straighten the window carrier. When the window carrier is straightened, the window can be replaced. When the window is pressed, the slider assembly's internal spring resets the gland and compresses the air chamber.

[0027] The gland includes a gland gas inlet, a gas outlet, a bottom fixing port, an upper fixing port, and a gas pipeline. The gland gas inlet is provided in the middle of the front of the gland, gas outlets are provided on both sides of the gland, and a gas pipeline is provided inside the gland. The gas pipeline outlet is provided in front of the window piece to guide gas to blow toward the window piece and flow out from the gas outlet. The bottom fixing port is provided at the bottom of the gland and is used to be rotatably connected to the air chamber. The upper fixing port is provided at the top of the gland and is used to be connected to the hinge.

[0028] The valve block is provided with a purge gas inlet and an air path and is rotatably fixed to the air path of the slider assembly and air-connected. The purge gas enters the valve block through the purge gas inlet and then enters the air cover through the valve block air path and the air path of the slider assembly.

[0029] The valve block and slider assembly, and the slider assembly and gas cap, are both connected via a rotating shaft and internally provided with gas passages. Purge gas passes through the valve block and into the rotating shaft, which then directs the purge gas into the slider assembly. The gland's gas inlet shares the same gas path as the slider assembly. Two outlets lead from the gland's gas inlet, each aligned with the two windows, and are discharged through exhaust holes on either side of the gland.

[0030] The air chamber and the valve block are both fixed on the base.

[0031] The purge gas enters through the purge gas inlet of the valve block, enters the gland through the internal gas channel of the slider assembly and the gland gas inlet, is blown to the window pieces through the gas pipelines, and is discharged through the gas outlets on both sides.

[0032] A method for replacing a window piece in an air chamber device comprises the following steps: opening a pressure cover, fully extending the pressure cover by two hinge connections, and simultaneously being locked by the telescopic thrust of a slider assembly; removing the window piece with the aid of a vacuum suction cup, with one side of the window piece carrier facing upward with the opening size matching the size of the window piece, then replacing the window piece with a new one by the vacuum suction cup and pushing it upward tightly, closing the pressure cover, and sealing the pressure cover with the air chamber under the thrust of the telescopic slider assembly.

[0033] In the device of the present invention, the window does not require screw fasteners, and an ordinary maintenance worker can complete the replacement of the window without any tools, only with the window. The window replacement structure is integrated with a purge function to avoid window contamination caused by aging of the equipment itself.

Claims

1. An air chamber device, characterized in that include: Gland, hinge, window carrier, air chamber, slider assembly, valve block, base; The gland is fixedly connected to both sides of the lower portion of the air chamber via a bottom fixing port and a rotating shaft; The gland includes a gland gas inlet, a gas outlet, a bottom fixing port, an upper fixing port, and a gas pipeline; the gland gas inlet is arranged in the middle of the front of the gland; the gas outlet is arranged on both sides of the gland; an gas pipeline is further arranged inside the gland, and the gas pipeline outlet is arranged in front of the window piece; the bottom fixing port is arranged at the lower part of the gland; the upper fixing port is arranged at the upper part of the gland; The upper two sides of the gland are connected by a hinge with one end fixed to the upper fixing port and the other end fixed to the air chamber; a window sheet carrier is provided in the middle of the two hinges; The gland is connected to the valve block via a slider assembly; one end of the slider assembly is rotatably fixed to the gland gas inlet and is gas-connected; The slider assembly has an air passage in the middle and is retractable; The valve block is provided with a purge gas inlet and an air passage, and is rotatably fixed to the air passage of the slider assembly and air-connected; The air chamber and the valve block are both fixed on the base.

2. The air chamber device according to claim 1, characterized in that: The window piece carrier is provided with two window piece fixing openings; The opening size of the window piece fixing port on one side adjacent to the air chamber is smaller than the size of the window piece, and the opening size on the other side is set to match the size of the window piece.

3. The method for replacing a window piece of an air chamber device according to any one of claims 1-2, characterized in that: The steps include: Open the pressure cover, which is fully opened by the two hinges and is stuck by the telescopic thrust of the slider assembly; the window piece carrier opening size matches the size of the window piece with one side facing upwards, and the window piece is taken out with the help of the vacuum suction cup, and then replaced with a new window piece with the help of the vacuum suction cup and pushed upwards tightly, and the pressure cover is closed, and the pressure cover is pressed tightly against the air chamber under the thrust of the telescopic slider assembly.

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