CN219016853U

CN219016853U - Steam protection system

Info

Publication number: CN219016853U
Application number: CN202223430157.7U
Authority: CN
Inventors: 郝毅
Original assignee: Dalian Fujia Dahua Petrochemical Co Ltd
Current assignee: Dalian Fujia Dahua Petrochemical Co Ltd
Priority date: 2022-12-21
Filing date: 2022-12-21
Publication date: 2023-05-12
Anticipated expiration: 2032-12-21

Abstract

The utility model provides a steam protection system, which comprises a steam pipeline and a condensate water collecting device arranged on the steam pipeline, wherein the condensate water collecting device comprises a liquid storage tank, an inlet of the liquid storage tank is communicated with the steam pipeline through a first pipeline, an outlet of the liquid storage tank is connected to a condensate water pipeline network through a second pipeline, a pressure detecting device and a control valve are arranged on the first pipeline, and the pressure detecting device is positioned on an upstream pipeline of the control valve. The condensate water collecting device is arranged at the water hammer position, so that high-pressure condensate water in the steam pipeline can be timely discharged, and the occurrence of pipeline water hammer is avoided.

Description

Steam protection system

Technical Field

The utility model relates to the technical field of chemical industry, in particular to a steam protection system.

Background

In the chemical production process, steam is an indispensable part of production as a heat source. In the steam pipeline operation process, because steam trap faults and water in the steam pipeline cannot be discharged in time, pipeline water is impacted, and when serious, the steam pipeline is cracked, personnel injury is caused, and property loss is caused.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model aims to provide a steam protection system which can timely discharge high-pressure water in a steam pipeline and avoid the occurrence of pipeline water hammer.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the utility model provides a steam protection system, includes steam line and sets up condensate water collection device on the steam line, condensate water collection device includes the liquid storage jar, liquid storage jar entry is through first pipeline intercommunication steam line, liquid storage jar export is connected to condensate water pipe network through the second pipeline, be provided with pressure detection device and control valve on the first pipeline, pressure detection device is located on the upstream pipeline of control valve.

Further, a liquid level detection device is arranged on the liquid storage tank.

Further, a liquid discharge pump is arranged on the second pipeline.

Further, a one-way valve is arranged on an outlet pipeline of the liquid discharge pump.

Further, the control system is further provided with a pressure detection device which is a pressure sensor, the control valve is an electromagnetic valve, the pressure sensor and the electromagnetic valve are electrically connected with the control system, and the control system receives signals output by the pressure sensor and controls the electromagnetic valve to be opened and closed according to a preset pressure value.

Further, the liquid level detection device is a liquid level sensor, the liquid level sensor and the liquid discharge pump are electrically connected with the control system, and the control system receives signals of the liquid level sensor and controls the liquid discharge pump to be started or stopped according to a preset temperature value.

Further, the control system is a PLC controller.

Further, the steam pipeline is portal frame type, and the condensate water collecting device is arranged at the position from the low point to the high point elbow of the portal frame type steam pipeline.

Compared with the prior art, the utility model has the beneficial effects that:

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present utility model.

In the figure: 1. the device comprises a steam pipeline, 2, a liquid storage tank, 3, a first pipeline, 4, a second pipeline, 5, a pressure detection device, 6, a control valve, 7, a liquid level detection device, 8, a liquid discharge pump, 9 and a one-way valve.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

Example 1

As shown in fig. 1, a vapor protection system includes a vapor line 1 and a condensate collection device disposed on the vapor line 1. In order to eliminate the stress caused by heat expansion and cold contraction of the pipeline, the steam pipeline 1 of the embodiment is in a portal frame shape, namely in a shape like a Chinese character 'ji', and the position from the low point to the high point elbow of the portal frame shape of the steam pipeline 1 is easy to be impacted by water in the process of converting kinetic energy into potential energy, so that the condensed water collecting device is arranged at the position from the low point to the high point elbow at the portal frame.

The condensate water collecting device comprises a liquid storage tank 2, a liquid storage tank inlet is formed in the top of the liquid storage tank 2, a liquid storage tank outlet is formed in the bottom of the liquid storage tank 2, the liquid storage tank inlet is communicated with a steam pipeline 1 through a first pipeline 3, the liquid storage tank outlet is connected to a condensate water pipe network through a second pipeline 4, a pressure detecting device 5 and a control valve 6 are arranged on the first pipeline 3, and the pressure detecting device 5 is located on an upstream pipeline of the control valve 6.

When the pressure detection device 5 detects that the low-point elbow position at the portal frame of the steam pipeline 1 is about to be impacted by water, the control valve 6 is opened, and the pressure in the steam pipeline 1 is timely discharged into the liquid storage tank 2, so that the steam pipeline 1 is prevented from being damaged by the water impact. Thereby achieving the effects of eliminating water hammer and protecting pipelines.

In order to facilitate timely discharging of condensate in the liquid storage tank 2, normal use of the liquid storage tank 2 is guaranteed, a liquid level detection device 7 is arranged on the liquid storage tank 2, and a liquid discharge pump 8 is arranged on the second pipeline 4. The outlet pipeline of the liquid discharge pump 8 is provided with a one-way valve 9.

The embodiment also comprises a control system, wherein the pressure detection device 5 is a pressure sensor, the control valve 6 is an electromagnetic valve, the pressure sensor and the electromagnetic valve are electrically connected with the control system, and the control system receives signals output by the pressure sensor and controls the electromagnetic valve to be opened and closed according to a preset program. It is to be noted that, through the automatic real-time detection of control system steam line 1's pressure to control solenoid valve's start and stop, can effectually avoid steam water hammer's production.

The liquid level detection device 7 is a liquid level sensor, the liquid level sensor and the liquid discharge pump 8 are electrically connected with a control system, and the control system receives signals of the liquid level sensor and controls the liquid discharge pump 8 to be started and stopped according to a preset program.

It should be noted that, by automatically monitoring the liquid level of the liquid storage tank 2 in real time by the control system and controlling the liquid discharge pump 8 to discharge the condensed water in the liquid storage tank 2, the stable operation of the condensed water collecting device can be ensured.

The control system of the present embodiment is a PLC controller.

The condensate recovery device is arranged at a position (namely a low-point elbow position to a high-point elbow position) where the steam pipeline 1 is easy to strike, the remote control system monitors the water strike of the steam pipeline 1 through the pressure sensor, when the steam pipeline 1 is struck by water, the pressure sensor timely transmits data to the remote control system, and when the data of the pressure sensor reaches 10% of the operating pressure of the steam pipeline 1, the remote control system opens the electromagnetic valve to discharge the struck liquid into the liquid storage tank 2;

when the remote control system monitors that the liquid level of the liquid storage tank 2 reaches 80% through the liquid level sensor, the remote control system starts the liquid discharge pump 8, and the condensed water in the liquid storage tank 2 is conveyed to a condensed water pipe network through the one-way valve 9, and when the liquid level of the liquid storage tank 2 reaches 20%, the remote control system stops the operation of the liquid discharge pump 8;

when the remote control system monitors that the steam line 1 pressure is restored to the operating pressure by the pressure sensor, the solenoid valve is closed.

It should be noted that the detailed portions of the present utility model are not described in the prior art.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "configured," "connected," "secured," "screwed," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature "above," "over" and "on" a second feature may be a first feature directly above or obliquely above the second feature, or simply indicate that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

In the description of the present utility model, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

While embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the utility model as defined by the appended claims and their equivalents.

Claims

1. A vapor protection system, characterized by: including steam line and setting are in condensate water collection device on the steam line, condensate water collection device includes the liquid storage jar, liquid storage jar entry is through first pipeline intercommunication steam line, liquid storage jar export is connected to condensate water pipe network through the second pipeline, be provided with pressure detection device and control valve on the first pipeline, pressure detection device is located on the upstream pipeline of control valve.

2. A vapor protection system as recited in claim 1, further characterized by: the liquid storage tank is provided with a liquid level detection device.

3. A vapor protection system as recited in claim 1, further characterized by: and a liquid discharge pump is arranged on the second pipeline.

4. A vapor protection system as set forth in claim 3, characterized in that: and a one-way valve is arranged on an outlet pipeline of the liquid discharge pump.

5. A vapor protection system as recited in any one of claims 1-4, further characterized by: the steam pipeline is portal frame type, and the condensate water collecting device is arranged at the position from the low point to the high point elbow at the portal frame.