Instrument sewage and exhaust device and method thereof

Abstract

The present invention belongs to the field of instrument control technology, and specifically relates to an instrument sewage and exhaust device and method thereof. The present invention comprises a transparent sealed box, a handle, a stop valve 1, a stop valve 2, a connecting hose, an instrument valve group joint, a quick locking joint, a clamp 1, a clamp 2, and a drain valve. The handle is connected to the top of the transparent sealed box to realize the portable device; the upper part of the transparent sealed box is connected to the stop valve 1, the quick locking joint is connected to the stop valve 1 and the stop valve 2 respectively, the clamp 1 and the clamp 2 fix the connecting hose to the stop valve 2 and the instrument valve group joint respectively, and the instrument valve group joint is connected to the instrument valve group; the drain valve is connected to the bottom of the transparent sealed box to discharge the medium in the transparent sealed box. The present invention can complete the instrument sewage and exhaust work safely and quickly.

Description

Technical Field

[0001] The invention belongs to the technical field of instrument control, and in particular relates to an instrument sewage and exhaust device and a method thereof. Background Art

[0002] In industrial applications, due to the process system, maintenance personnel are required to regularly drain or exhaust some instruments or instrument pressure pipelines. Even some process system pipelines need to drain or exhaust from the instrument. The drainage or exhaust of the instrument is generally carried out from the instrument valve group. Some instruments in industrial applications measure not only high-temperature and high-pressure media, but also high-risk chemical media such as strong acids, strong alkalis, and strong radioactivity. At the same time, there may also be high-risk media around the installation location of the instrument. This brings inconvenience to the drainage or exhaust of the instrument by on-site maintenance personnel. Taking the three waste systems of a nuclear power plant as an example, the instruments or instrument pipelines of the system are often blocked, and maintenance personnel are required to drain the instruments or instrument pipelines from the instrument valve group. However, the medium inside the system is generally a highly radioactive medium, and the surrounding environment is highly radioactive, so the risk of draining the instrument or instrument pipeline is high. During a unit overhaul, when the maintenance personnel drained the instrument from the instrument valve group, the radioactive medium in the instrument sampling tube was ejected due to the high internal pressure of the system, causing the staff and the workplace to be contaminated by the radioactive medium. Therefore, it is extremely important to improve the safety and efficiency of instrument sewage and exhaust work.

[0003] Now there is an urgent need for an instrument sewage and exhaust device that can complete the instrument sewage and exhaust work safely and quickly. Summary of the invention

[0004] Technical problems solved by the present invention:

[0005] The present invention provides an instrument sewage and gas discharge device and method, which can complete the instrument sewage and gas discharge work safely and quickly.

[0006] The technical solution adopted by the present invention is:

[0007] An instrument sewage and air discharge device comprises a transparent sealed box, a handle, a stop valve 1, a stop valve 2, a connecting hose, an instrument valve group joint, a quick locking joint, a clamp 1, a clamp 2, and a drain valve. The handle is connected to the top of the transparent sealed box so that the device can be carried by hand; the upper part of the transparent sealed box is connected to the stop valve 1, the quick locking joint is connected to the stop valve 1 and the stop valve 2 respectively, the clamp 1 and the clamp 2 fix the connecting hose to the stop valve 2 and the instrument valve group joint respectively, and the instrument valve group joint is connected to the instrument valve group; the drain valve is connected to the bottom of the transparent sealed box for discharging the medium in the transparent sealed box.

[0008] The stop valve 1 can close the transparent sealing box side.

[0009] The stop valve 2 can close the instrument valve group side

[0010] The transparent sealing box and the instrument valve group can be quickly connected or disconnected through the quick locking connector.

[0011] The volume of the transparent sealed box and the length of the connecting hose are adjustable.

[0012] A method for an instrument sewage and exhaust device comprises the following steps:

[0013] Step 1: Close stop valve 1, stop valve 2 and drain valve, connect the instrument valve group connector to the instrument valve group, open the instrument valve on the instrument valve group, and then open stop valve 2 and stop valve 1 in sequence to drain or exhaust the instrument;

[0014] Step 2: When the transparent sealed box is filled with the medium, close stop valve 2 and stop valve 1 in sequence, disconnect the quick locking connector, use the handle to lift the stop valve side of the device to the pit, open the drain valve, and drain the medium in the transparent sealed box.

[0015] Step 3: If the instrument still needs to be drained or exhausted, close the drain valve, quickly lock the quick-lock connector and shut-off valve 2, and then open shut-off valve 2 and shut-off valve 1 in sequence to continue draining or exhausting the instrument.

[0016] During the process of draining or exhausting the instrument, if an abnormality occurs on the instrument valve group side, immediately close the instrument valve and stop valve 2 on the instrument valve group to isolate the device from the instrument valve group; if an abnormality occurs on the transparent sealing box side of the device, immediately close the instrument valve and stop valve 1 on the instrument valve group to isolate the device from the instrument valve group.

[0017] Beneficial effects of the present invention:

[0018] (1) In the instrument sewage and exhaust device provided by the present invention, when the sewage and exhaust work abnormally, the two stop valves are quickly closed from the instrument valve group side in sequence, and after the quick locking joint is disconnected, the device can be quickly isolated from the instrument valve group, which is highly practical;

[0019] (2) The instrument sewage and exhaust device provided by the present invention can be effectively isolated from the outside world after being connected to the instrument valve group, which can prevent the medium from overflowing during the working process, effectively reduce the working risk, and has strong safety;

[0020] (3) In the instrument sewage and exhaust device provided by the present invention, the volume of the transparent sealing box can be designed according to the requirements and has a wide application. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1A schematic diagram of the structure of an instrument sewage and exhaust device provided by the present invention;

[0022] In the figure: 1-transparent sealing box; 2-handle; 3-stop valve 1; 4-stop valve 2; 5-connecting hose; 6-instrument valve group connector; 7-quick locking connector; 8-clamp 1; 9-clamp 2; 10-drain valve. DETAILED DESCRIPTION

[0023] The following is a further detailed description of an instrument sewage and gas discharge device and method provided by the present invention in conjunction with the accompanying drawings and specific embodiments.

[0024] like Figure 1 As shown, an instrument sewage and exhaust device provided by the present invention comprises a transparent sealing box 1, a handle 2, a stop valve 1 3, a stop valve 2 4, a connecting hose 5, an instrument valve group connector 6, a quick locking connector 7, a clamp 1 8, a clamp 2 9, and a drain valve 10.

[0025] The handle 2 is connected to the top of the transparent sealed box 1, so that the device can be carried by hand; the upper part of the transparent sealed box 1 is connected to the stop valve 1 3, and the quick locking connector 7 is respectively connected to the stop valve 1 3 and the stop valve 2 4, and the clamp 1 8 and the clamp 2 9 fix the connecting hose 5 on the stop valve 2 4 and the instrument valve group connector 6 respectively, and the instrument valve group connector 6 is connected to the instrument valve group; the stop valve 1 3 can close the transparent sealed box 1 side, and the stop valve 2 4 can close the instrument valve group side, and the quick locking connector 7 can be used to realize the quick connection or disconnection of the transparent sealed box 1 and the instrument valve group; the drain valve 10 is connected to the bottom of the transparent sealed box 1, and is used to discharge the medium in the transparent sealed box 1; the combination of the above components can safely and quickly realize the drainage or exhaust of the instrument.

[0026] The volume of the transparent sealing box 1 and the length of the connecting hose 5 can be designed according to the actual needs of the work; the instrument valve group connector 6 is designed as a flexible joint. When the clamp 2 9 fixes the connecting hose 5 on the instrument valve group connector 6, a wrench can be used to connect the instrument valve group connector 6 to the instrument valve group.

[0027] The present invention provides an instrument sewage and gas discharge method, comprising the following steps:

[0028] Step 1: Close the stop valve 1 3, the stop valve 2 4 and the drain valve 10, connect the instrument valve group connector 6 to the instrument valve group, open the instrument valve on the instrument valve group, and then open the stop valve 2 4 and the stop valve 1 3 in sequence to drain or exhaust the instrument;

[0029] Step 2: When the transparent sealed box 1 is filled with the medium, close the stop valve 2 4 and the stop valve 1 3 in sequence, disconnect the quick locking connector 7, use the handle 2 to lift the stop valve 1 3 side of the device to the dedicated pit, open the drain valve 10, and drain the medium in the transparent sealed box 1.

[0030] Step 3: If it is still necessary to drain or exhaust the instrument, close the drain valve 10, quickly lock the quick-lock connector 7 and the stop valve 2 4, and then open the stop valve 2 4 and the stop valve 1 3 in sequence to continue draining or exhausting the instrument.

[0031] During the process of draining or exhausting the instrument, if an abnormality occurs on the instrument valve group side, immediately close the instrument valve and stop valve 4 on the instrument valve group to isolate the device from the instrument valve group; if an abnormality occurs on the transparent sealing box 1 side of the device, immediately close the instrument valve and stop valve 3 on the instrument valve group to isolate the device from the instrument valve group.

[0032] The present invention is described in detail above with reference to the accompanying drawings and actual operations, but the present invention is not limited to the above operations. Various changes, including changes in size, can be made within the knowledge of ordinary technicians in the field without departing from the purpose of the present invention. Any content not described in detail in the present invention can adopt the existing technology.

Claims

1. A method for draining and exhausting an instrument, based on an instrument draining and exhausting device, comprising a transparent sealing box (1), a handle (2), a stop valve 1 (3), a stop valve 2 (4), a connecting hose (5), an instrument valve group connector (6), a quick locking connector (7), a clamp 1 (8), a clamp 2 (9), and a drain valve (10), wherein the handle (2) is connected to the top of the transparent sealing box (1) to enable the device to be carried by hand; the upper part of the transparent sealing box (1) is connected to the stop valve 1 (3), the quick locking connector (7) is respectively connected to the stop valve 1 (3) and the stop valve 2 (4), and the clamp 1 (8) and the clamp 2 (9) are connected to the stop valve 1 (3) and the stop valve 2 (4). The second hoop (9) fixes the connecting hose (5) on the second stop valve (4) and the instrument valve group connector (6), respectively, and the instrument valve group connector (6) is connected to the instrument valve group; the drain valve (10) is connected to the bottom of the transparent sealed box (1) and is used to discharge the medium in the transparent sealed box (1); the first stop valve (3) can close the transparent sealed box (1); the second stop valve (4) can close the instrument valve group side; the transparent sealed box (1) and the instrument valve group can be quickly connected or disconnected by a quick locking connector (7); the volume of the transparent sealed box (1) and the length of the connecting hose (5) are adjustable; Features: The steps include: Step 1: Close the stop valve 1 (3), the stop valve 2 (4) and the drain valve (10), connect the instrument valve group connector (6) to the instrument valve group, open the instrument valve on the instrument valve group, and then open the stop valve 2 (4) and the stop valve 1 (3) in sequence to drain or exhaust the instrument; Step 2: When the transparent sealed box (1) is filled with the medium, the stop valve 2 (4) and the stop valve 1 (3) are closed in sequence, the quick-locking connector (7) is disconnected, the stop valve 1 (3) side of the device is lifted to the pit using the handle (2), and the drain valve (10) is opened to drain the medium in the transparent sealed box (1); Step 3: If it is still necessary to drain or exhaust the instrument, close the drain valve (10), quickly lock the quick-lock connector (7) and the stop valve 2 (4), and then open the stop valve 2 (4) and the stop valve 1 (3) in sequence to continue draining or exhausting the instrument.

2. The method according to claim 1, Features: During the process of draining or exhausting the instrument, if an abnormality occurs on the instrument valve group side, immediately close the instrument valve and stop valve 2 (4) on the instrument valve group to isolate the device from the instrument valve group; If an abnormality occurs on the transparent sealing box (1) side of the device, immediately close the instrument valve and stop valve 1 (3) on the instrument valve group to isolate the device from the instrument valve group.

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