CN207349805U - A kind of vapor-proof reveals pot type condensate water drainage arrangement - Google Patents

Abstract

The utility model belongs to the technical field of steam condensed water recovery, in particular to an anti-steam leakage tank type condensed water drainage device, comprising a condensed water tank, a magnetic float level gauge arranged on the condensed water tank and a DCS control system; the condensed water tank is provided with a condensed water inlet pipe and an outlet pipe, and the outlet pipe is provided with a self-regulating valve, and the self-regulating valve includes a signal receiving end; the magnetic float level gauge includes a liquid level transmitter , the signal output end of the liquid level transmitter is connected to the DCS control system, and the DCS control system is connected to the signal receiving end of the self-regulating valve. It has the characteristics of convenient use, simple operation, easy maintenance, safe and reliable operation.

Description

An anti-steam leakage tank type condensate drainage device

technical field

The utility model belongs to the technical field of steam condensed water recovery, in particular to a tank-type condensed water drainage device for preventing steam leakage.

Background technique

At present, the condensed water drains used by enterprises are generally manual drains, and its structure mainly includes a condensed water tank, a heat exchanger condensed water connection pipe located on the upper part of the condensed water tank, and a condensed water drain located on the lower part of the condensed water tank. Water drain pipe and shut-off valve on the condensate drain pipe. The shortcomings of the condensate drainer are: some condensate drainers do not contain an automatic drain adjustment device, and it is impossible to judge whether there is a liquid level in the condensate tank, and it is impossible to judge whether the condensate in the condensate tank is drained; Although the discharge is clean, it is very easy to discharge high-pressure steam, causing burns to the staff, and at the same time leaking steam pressure and wasting energy.

In addition, the main drainage equipment of the steam condensate drainage system is the steam trap. The disadvantage of the steam trap is that the failure rate is high. After a failure, it will either not drain water or easily leak air, which will easily cause burns to the staff and waste of resources. .

Utility model content

The utility model provides an anti-steam leakage tank-type condensed water drainage device, which mainly solves the problem that the existing condensed water drainer cannot automatically control the discharge of condensed water and easily causes high-pressure steam leakage.

In order to achieve the above purpose, the utility model designs an anti-steam leakage tank-type condensate drainage device, which includes a condensate tank, a magnetic float level gauge installed on the condensate tank, and a DCS control system located outside the condensate tank ;

The condensed water tank is provided with a condensed water inlet pipe and an outlet pipe, and the outlet pipe is provided with a self-regulating valve, which includes a signal receiving end; the magnetic float level gauge includes a liquid level transmitter, and the liquid level transmitter The signal output end of the transmitter is connected to the DCS control system, and the DCS control system is connected to the signal receiving end of the self-regulating valve.

Specifically, the device also includes a bypass pipe arranged in parallel with the water outlet pipe, the bypass pipe is provided with a third cut-off valve, the part where the water outlet pipe is connected with the bypass pipe is provided with a first cut-off valve and a second cut-off valve, the second A stop valve is located on the left side of the self-regulating valve, and a second stop valve is located on the right side of the self-regulating valve. The first stop valve, the self-regulating valve and the second stop valve are all arranged in parallel with the third stop valve.

Specifically, the self-adjusting valve, the first shut-off valve, the second shut-off valve and the third shut-off valve are one or both of electromagnetic valves, electric valves and pneumatic valves.

This is a new type of tank-type condensate drainage device. The liquid level gauge is a magnetic float level gauge that can be read on site. The liquid level transmitter has a signal sending function. The pipe connection can detect the water level in the condensed water tank and send a signal to the DCS control system; when in use, the condensed water containing high-pressure steam is discharged through the heat exchanger and enters the condensed water tank through the condensed water connection pipe, and the liquid level transmitter is used to Detect the liquid level. When the condensed water level is higher than the outlet pipe, the liquid level transmitter will send the signal to open the self-regulating valve to the DCS control system. After receiving the signal, the DCS control system will send a signal to the signal receiving end of the self-regulating valve to open The self-regulating valve discharges the condensed water; when the liquid level in the condensed water tank reaches the outlet pipe, the liquid level transmitter sends a signal to the DCS control system, and the self-adjusting valve is closed to stop discharging the condensed water to prevent the high-pressure steam from leaking.

In order to ensure the normal operation of the condensate tank, when the self-regulating valve is overhauled or replaced, the water is drained through the bypass pipe installed in parallel on the outlet pipe, that is, when the self-regulating valve fails, the first stop valve and the second stop valve are closed , Open the third cut-off valve to overhaul or replace the self-adjusting valve. At this time, by manually observing the display end of the magnetic float level gauge, adjust the third cut-off valve to discharge the condensed water.

The beneficial effects of the utility model are:

1. The anti-steam leakage tank-type condensate drainage device described in this utility model is mainly used to improve the existing condensate tank. The liquid level is detected by the liquid level transmitter and the DCS control system controls and adjusts the self-adjusting valve to realize the condensate discharge. Automatic discharge is conducive to the separation of condensed water and high-pressure steam, and at the same time prevents steam from being discharged from the drain pipe, avoiding leakage of steam pressure and waste of energy;

2. The heat carried by the discharged condensed water can be further collected by setting a pipeline circuit for secondary use;

3. Set up self-regulating valves for self-regulating drainage of tanks, which can avoid hazards to human health caused by high-pressure steam leakage during manual drainage;

4. The bypass pipe connected in parallel with the outlet pipe can realize the maintenance of the self-regulating valve under the condition of uninterrupted production.

The anti-steam leakage tank-type condensate drainage device of the utility model can greatly reduce labor intensity, improve production efficiency, and help reduce costs; meanwhile, it has the characteristics of convenient use, simple operation, easy maintenance, and safe and reliable operation.

Description of drawings

Fig. 1 is a schematic diagram of the anti-steam leakage tank type condensate drainage device of the present invention.

Detailed ways

The utility model will be described in further detail below in conjunction with the accompanying drawings, but the protection scope of the utility model is not limited thereto.

Example 1

As shown in Figure 1, an anti-steam leakage tank-type condensate drainage device includes a condensate tank 1, a magnetic float level gauge 5 installed on the condensate tank 1, and a DCS control system located outside the condensate tank 1 (Not marked in the figure); The condensed water tank 1 is provided with a condensed water inlet pipe 2 and an outlet pipe 3, and the outlet pipe 3 is provided with a self-regulating valve 4, and the self-regulating valve 4 includes a signal receiving end; the maglev The sub-level gauge 5 includes a liquid level transmitter 6, the signal output end of the liquid level transmitter 6 is connected to the DCS control system (to send a signal to open or close the self-regulating valve 4), and the DCS control system is connected to the self-regulating valve 4 The signal receiving end (to control the opening or closing of the self-regulating valve 4);

In this embodiment, the model of the magnetic float level gauge 5 is LM6RCSB42FLN-OSi-1000, the model of the liquid level transmitter 6 is LMS-1, and the liquid level transmitter 6 is connected to the main conduit of the magnetic float level gauge 5, The liquid level in the condensate tank can be converted into a 4~20mADC standard signal and output to the DCS control system.

The device also includes a bypass pipe 9 arranged in parallel with the outlet pipe 3, the bypass pipe 9 is provided with a third shut-off valve 10, and the part where the outlet pipe 3 is connected to the bypass pipe 9 is provided with a first shut-off valve 7 and a second shut-off valve. The stop valve 8, the first stop valve 7 is located on the left side of the self-regulating valve 4, the second stop valve 8 is located on the right side of the self-regulating valve 4, the first stop valve 7, the self-regulating valve 4 and the second stop valve 8 They are all arranged in parallel with the third shut-off valve 10 .

In this embodiment, the self-regulating valve 4 is an electromagnetic valve, and the first stop valve 7 , the second stop valve 8 and the third stop valve 10 are electric valves.

When in use, open the first shut-off valve 7 and the second shut-off valve 8, close the third shut-off valve 10, discharge the condensed water containing high-pressure steam through the heat exchanger, enter the condensed water tank 1 through the condensed water inlet pipe 2, and pass through the liquid The level transmitter 6 detects the liquid level. When the liquid level is higher than the outlet pipe 3, the liquid level transmitter 6 sends a signal to the DCS control system to open the self-regulating valve 4, and the DCS control system sends a signal to the self-regulating valve 4 after receiving the signal. Send a signal to control the self-regulating valve 4 to open and discharge the condensed water; when the liquid level in the condensed water tank 1 reaches the outlet pipe 3, the liquid level transmitter 6 sends a signal to the DCS control system, and controls to close the self-regulating valve 4 to stop draining , to prevent the leakage of high-pressure steam;

When the self-regulating valve 4 breaks down and needs to be repaired or replaced, in order to ensure the continuous operation of the condensed water tank 1, drain water through the bypass pipe 9. At this time, the first stop valve 6 and the second stop valve 7 are closed, and the third stop valve is opened. Valve 9, overhaul or replace the self-regulating valve 4, and adjust the third stop valve 9 by manually observing the liquid level of the magnetic float level gauge 5 to discharge condensed water.

The above is only a preferred embodiment of the utility model, so all equivalent changes or modifications done according to the structure, features and principles described in the utility model patent application scope are included in the utility model patent application protection scope Inside.

Claims (3)

1. An anti-steam leakage tank type condensed water drainage device is characterized in that it comprises a condensed water tank, a magnetic float liquid level gauge arranged on the condensed water tank and a DCS control system located outside the condensed water tank; The condensed water tank is provided with a condensed water inlet pipe and an outlet pipe, and the outlet pipe is provided with a self-regulating valve, which includes a signal receiving end; the magnetic float level gauge includes a liquid level transmitter, and the liquid level transmitter The signal output end of the transmitter is connected to the DCS control system, and the DCS control system is connected to the signal receiving end of the self-regulating valve. 2. According to claim 1, the anti-steam leakage tank type condensate drainage device is characterized in that the device also includes a bypass pipe arranged in parallel with the outlet pipe, the bypass pipe is provided with a third shut-off valve, and the outlet pipe is connected to the water outlet pipe. The part connected by the bypass pipe is provided with a first stop valve and a second stop valve, the first stop valve is located on the left side of the self-regulating valve, the second stop valve is located on the right side of the self-regulating valve, the first stop valve, Both the regulating valve and the second cut-off valve are arranged in parallel with the third cut-off valve. 3. According to claim 1 or 2, the anti-steam leakage tank type condensate drainage device is characterized in that, the self-regulating valve, the first shut-off valve, the second shut-off valve and the third shut-off valve are electromagnetic valves, electric One or both of valves and pneumatic valves.