CN211600202U - An electronically controlled high-pressure steam pipeline draining device - Google Patents

Abstract

The utility model discloses an electric control high-pressure steam pipeline drainage device, which comprises a drainage pipe, wherein one end of the drainage pipe is provided with a water inlet, and the other end of the drainage pipe is provided with a water outlet; the drain pipe is sequentially provided with a first liquid level meter, a second liquid level meter and an electromagnetic valve along the direction from the water inlet to the water outlet; the first liquid level meter is positioned above the second liquid level meter, and the electromagnetic valve is set to be opened when the liquid level height reaches the first liquid level meter and closed when the liquid level height is lower than the second liquid level meter. The utility model discloses can realize automatic hydrophobic to high-pressure steam line.

Description

An electronically controlled high-pressure steam pipeline draining device

technical field

The utility model relates to a drainage device, in particular to an electric control high-pressure steam pipeline drainage device.

Background technique

In industrial production, high-pressure steam is almost an indispensable energy supply for production. The discharge of cold energy and water in the high-pressure steam conveying pipeline has always been an extremely important part of the steam conveying system. Many types of steam draining devices have been designed for this purpose. In the actual use process, due to the unstable operation of the trapping device, it is very easy to cause the condensate discharge to be unclean and cause water hammer, or the trap valve is not closed in time, resulting in a large amount of steam leakage. It is urgent to design a set of self-controlled high-pressure steam with simple structure and stable operation. Pipeline drainage system.

Utility model content

The purpose of the utility model is to provide an electronically controlled high-pressure steam pipeline draining device to solve the technical problems in the prior art, which can drain the high-pressure steam pipeline.

The utility model provides an electric control high-pressure steam pipeline draining device, comprising a draining pipe, one end of the draining pipe is provided with a water inlet, and the other end of the draining pipe is provided with a drain; wherein, the draining pipe is arranged along the A first liquid level gauge, a second liquid level gauge and a solenoid valve are arranged in sequence from the water inlet to the water outlet;

The first liquid level gauge is located above the second liquid level gauge, and the solenoid valve is configured to be opened when the liquid level reaches the first liquid level, and when the liquid level is lower than The second level timer is turned off.

The above-mentioned electronically controlled high-pressure steam pipeline draining device, wherein, optionally, the first liquid level gauge and the second liquid level gauge are both tuning fork liquid level gauges, and the first liquid level gauge and the second liquid level gauge are normally open liquid level gauges.

The above electrically controlled high-pressure steam pipeline draining device, wherein, optionally, the electrically-controlled high-pressure steam pipeline draining device further includes an electronic control circuit;

the solenoid valve is connected to a power source;

The solenoid coil of the solenoid valve is connected in series with the electronic control circuit to form a control circuit, and the control circuit is connected in parallel with the solenoid valve; the solenoid coil of the solenoid valve is configured to control the solenoid valve when it is turned on Open;

The electronic control circuit is used for timing the conduction when the liquid level is higher than the first liquid level until the timing is disconnected when the liquid level is lower than the second liquid level.

The above electronically controlled high-pressure steam pipeline draining device, wherein, optionally, the electronically controlled circuit includes a first branch and a second branch;

the first liquid level gauge is connected to the first branch road;

The second liquid level gauge is connected to the second branch road, and the second branch road is also provided with an electromagnetic switch connected in series with the second liquid level gauge, the electromagnetic switch is a normally open switch, and the A solenoid switch is arranged to close when the solenoid coil is energized.

The above-mentioned electronically controlled high-pressure steam pipeline draining device, optionally, further comprises an emergency stop switch connected in series with the control circuit.

In the above electric control high-pressure steam pipeline draining device, optionally, the diameter of the end of the drain pipe close to the water outlet is smaller than the diameter of the end of the drain pipe close to the water inlet.

The above electrically controlled high-pressure steam pipeline draining device, wherein, optionally, the electrically-controlled high-pressure steam pipeline draining device further includes a drain pipe, the drain pipe is communicated with the drain outlet, and the drain pipe There is a stop valve on it.

In the above-mentioned electric control high-pressure steam pipeline draining device, optionally, a flange is provided at one end of the draining pipe close to the water inlet.

In the above electric control high-pressure steam pipeline draining device, optionally, the diameter of one end of the drain pipe close to the water inlet is 100 mm, and the diameter of the end of the drain pipe close to the water outlet is 25 mm.

In the above electronically controlled high-pressure steam pipeline draining device, optionally, the distance between the first liquid level gauge and the second liquid level gauge is not less than 400 mm.

Compared with the prior art, in the present invention, the first liquid level gauge and the second liquid level gauge with different heights are arranged on the drain pipe, and the different first liquid level gauge and the second liquid level gauge are generated by using the different liquid level heights. The signal combination of the liquid level gauge can adjust the opening or closing of the solenoid valve to achieve the purpose of water drainage.

Description of drawings

Fig. 1 is the structural representation of the present utility model;

FIG. 2 is a schematic circuit diagram of the present invention.

Description of reference numerals: 1- drain pipe, 2- first liquid level gauge, 3- second liquid level gauge, 4- solenoid valve, 5- electric control circuit, 6- control circuit, 7- emergency stop switch, 8- Drain pipe, 9-stop valve, 10-flange;

41 - electromagnetic coil;

51-first branch, 52-second branch, 53-electromagnetic switch.

Detailed ways

The following describes in detail the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary, and are only used to explain the present invention, but not to be construed as a limitation of the present invention.

Please refer to FIGS. 1 and 2 , the present invention proposes an electronically controlled high-pressure steam pipeline draining device, including a draining pipe 1 for discharging liquid water in the high-pressure steam pipeline. Specifically, one end of the drain pipe 1 is provided with a water inlet, and the other end of the drain pipe 1 is provided with a drain port; the water inlet of the drain pipe 1 is used to communicate with the sub-cylinder or the steam pipeline. Specifically, During installation, the drain pipe 1 is used to communicate with the drain port at the bottom of the sub-cylinder or steam pipeline. More specifically, the drain pipe 1 is sequentially provided with a first liquid level gauge 2 , a second liquid level gauge 3 and a solenoid valve 4 along the direction from the water inlet to the water outlet. In a specific implementation, the drain pipe 1 is arranged vertically, the first liquid level gauge 2 is located above the second liquid level gauge 3, and the solenoid valve 4 is configured to be used when the liquid level reaches a certain height. When the first liquid level gauge 2 is turned on, it is turned off when the liquid level is lower than the second liquid level gauge 3 .

In specific implementation, when the liquid level in the drain pipe 1 is higher than the first liquid level gauge 2, at this time, there is a lot of water in the drain pipe 1. At this time, the solenoid valve 4 is opened to drain water, and the drain The liquid level in the pipe 1 continues to drop until the liquid level is lower than the second liquid level, and the solenoid valve 4 is closed. In this way, the pressure relief caused by the liquid in the drain pipe 1 being exhausted can be prevented. The utility model can not only realize automatic drainage, but also prevent the high-pressure gas from the sub-cylinder or the steam pipeline from being discharged.

Specifically, the first liquid level gauge 2 and the second liquid level gauge 3 are both tuning fork level gauges, and the first liquid level gauge 2 and the second liquid level gauge 3 are both normally open type level gauge. More specifically, as for the selection of the first liquid level gauge 2 and the second liquid level gauge 3, those skilled in the art can choose according to needs, which will not be repeated here.

In order to complete the above working process, it can be realized by a controller or a circuit. As a preferred implementation, please refer to FIG. 2 , the electronically controlled high-pressure steam pipeline draining device further includes an electronic control circuit 5 ; specifically, the solenoid valve 4 is connected to a power source. The solenoid coil 41 of the solenoid valve 4 is connected in series with the electronic control circuit 5 to form a control circuit 6, and the control circuit 6 is connected in parallel with the solenoid valve 4; The solenoid valve 4 is opened. The electronic control circuit 5 is used to conduct when the liquid level is higher than the first liquid level gauge 2 until it is turned off when the liquid level is lower than the second liquid level gauge 3. More specifically, the electronic control circuit 5 includes a first branch 51 and a second branch 52; the first liquid level gauge 2 is connected to the first branch 51; the second liquid level gauge 3 Connected to the second branch 52, the second branch 52 is also provided with an electromagnetic switch 53 connected in series with the second liquid level gauge 3, the electromagnetic switch 53 is a normally open switch, the The electromagnetic switch 53 is arranged to close when the electromagnetic coil 41 is energized.

Specifically, in use, when the liquid level in the drain pipe 1 is lower than the second liquid level gauge 3, at this time, neither the first liquid level gauge 2 nor the second liquid level gauge 3 conducts On, the electromagnetic coil 4 is not energized. At this time, the solenoid valve 4 is in a closed state, and water cannot be drained. When the liquid level in the drain pipe 1 is between the first liquid level gauge 2 and the second liquid level gauge 3, at this time, although the second liquid level gauge 3 is turned on, the electromagnetic switch 53 is turned off, regardless of the first liquid level gauge 3. Neither the branch circuit 51 nor the second branch circuit 52 is conducted, and the drainage cannot be carried out. When the liquid level in the drain pipe 1 rises to the position of the first liquid level gauge 2, at this time, the first branch 51 is turned on, and the electromagnetic coil 41 is powered on, so that the solenoid valve 4 is opened, and the drain pipe 1 is turned on. At the same time, the electromagnetic switch 53 is closed, and the second branch 52 is turned on. As the drainage progresses, when the liquid level in the drain pipe 1 drops to between the first liquid level gauge 2 and the second liquid level gauge 3, the first branch 51 is disconnected, and the second branch 52 is turned on , at this time, the solenoid coil 41 is still powered on, the solenoid valve 4 remains open, and continues to drain water. With the further progress of drainage, when the liquid level in the drain pipe 1 drops below the second liquid level gauge 3, at this time, the first liquid level gauge 2 and the second liquid level gauge 3 are both disconnected, and the first liquid level gauge 2 and the second liquid level gauge 3 are disconnected. The branch 51 and the second branch 52 are not conducting, the electromagnetic coil 4 is de-energized, the electromagnetic valve 4 is restored to the closed state, and the electromagnetic switch 53 is restored to the open state.

As a preferred embodiment, the present invention also includes an emergency stop switch 7 connected in series with the control circuit 6 . In this way, by arranging the emergency stop switch 7, the electric control circuit 6 can be easily cut off, so as to facilitate maintenance.

As a preferred embodiment, the diameter of the end of the drain pipe 1 close to the water outlet is smaller than the diameter of the end of the drain pipe 1 close to the water inlet. In a specific implementation, the first liquid level gauge 2 and the second liquid level gauge 3 are both installed on the pipe section with the larger diameter of the drain pipe 1 . More specifically, the distance between the second liquid level gauge 3 and the pipe section with the smaller diameter of the drain pipe 1 is at least 50 mm. It takes 100 milliseconds from the time when the probe of the second level gauge 3 detects that there is no water until the solenoid valve 4 is closed. At this time, the liquid in the lower chamber of the second level gauge 3 is about to be drained to ensure that there is no steam leakage. Further, the diameter of one end of the drainage pipe 1 close to the water inlet is 100 mm, and the diameter of the end of the drainage pipe 1 close to the water outlet is 25 mm. The distance between the first liquid level gauge 2 and the second liquid level gauge 3 is not less than 400 mm.

As a preferred embodiment, the electronically controlled high-pressure steam pipeline draining device further includes a drain pipe 8, the drain pipe 8 is communicated with the drain outlet, and a stop valve 9 is provided on the drain pipe 8. Specifically, the shut-off valve 9 is used to manually close the drainage device.

As a preferred embodiment, a flange 10 is provided at one end of the drain pipe 1 close to the water inlet. In this way, the flange 10 is connected to the sub-cylinder or the steam line, and the flange 10 is sealedly connected to the sub-cylinder or the steam line.

The structure, features and effects of the present invention are described in detail above according to the embodiments shown in the drawings. The above are only the preferred embodiments of the present invention, but the scope of the present invention is not limited by the drawings. , any changes made in accordance with the concept of the present invention, or modifications to equivalent embodiments with equivalent changes, shall fall within the protection scope of the present invention if they still do not exceed the spirit covered by the description and the drawings.

Claims (10)

1. An electric control high-pressure steam pipeline drainage device comprises a drainage pipe (1), wherein a water inlet is formed in one end of the drainage pipe (1), and a water outlet is formed in the other end of the drainage pipe (1); the method is characterized in that: the drain pipe (1) is sequentially provided with a first liquid level meter (2), a second liquid level meter (3) and an electromagnetic valve (4) along the direction from the water inlet to the water outlet;

the first level gauge (2) is located above the second level gauge (3), and the solenoid valve (4) is arranged for opening when the level reaches the first level gauge (2) and closing when the level is lower than the second level gauge (3).

2. The electrically controlled high pressure steam line trap as in claim 1, wherein: the first liquid level meter (2) and the second liquid level meter (3) are tuning fork liquid level meters, and the first liquid level meter (2) and the second liquid level meter (3) are normally open liquid level meters.

3. The electrically controlled high pressure steam line trap as claimed in claim 2, wherein: the electric control high-pressure steam pipeline drainage device also comprises an electric control circuit (5);

the electromagnetic valve (4) is connected with a power supply;

the electromagnetic coil (41) of the electromagnetic valve (4) is connected with the electric control circuit (5) in series to form a control circuit (6), and the control circuit (6) is connected with the electromagnetic valve (4) in parallel; the solenoid (41) is arranged to control the solenoid valve (4) to open when switched on;

the electric control circuit (5) is used for being switched on when the liquid level is higher than the first liquid level meter (2) and being switched off when the liquid level is lower than the second liquid level meter (3).

4. The electrically controlled high pressure steam line trap as in claim 3, wherein: the electric control circuit (5) comprises a first branch (51) and a second branch (52);

the first liquid level meter (2) is connected to the first branch (51);

the second liquid level meter (3) is connected to the second branch (52), an electromagnetic switch (53) connected with the second liquid level meter (3) in series is further arranged on the second branch (52), the electromagnetic switch (53) is a normally open switch, and the electromagnetic switch (53) is set to be closed when the electromagnetic coil (41) is electrified.

5. The electrically controlled high pressure steam line trap as in claim 4, wherein: and the emergency stop switch (7) is connected with the control circuit (6) in series.

6. The electrically controlled high pressure steam line trap according to any one of claims 1 to 5, wherein: the diameter of one end of the drain pipe (1) close to the water outlet is smaller than that of one end of the drain pipe (1) close to the water inlet.

7. The electrically controlled high pressure steam line trap as in claim 6, wherein: the electric control high-pressure steam pipeline drainage device further comprises a drainage pipe (8), the drainage pipe (8) is communicated with the drainage port, and a stop valve (9) is arranged on the drainage pipe (8).

8. The electrically controlled high pressure steam line trap as in claim 6, wherein: and a flange plate (10) is arranged at one end of the drain pipe (1) close to the water inlet.

9. The electrically controlled high pressure steam line trap as in claim 6, wherein: the diameter of one end of the drain pipe (1) close to the water inlet is 100 mm, and the diameter of one end of the drain pipe (1) close to the water outlet is 25 mm.

10. The electrically controlled high pressure steam line trap as in claim 6, wherein: the distance between the first gauge (2) and the second gauge (3) is not less than 400 mm.

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