CN219135190U - White oil tank emptying system - Google Patents

Abstract

The utility model belongs to the field of chemical industry, and particularly relates to a white oil tank emptying system which comprises a white oil tank emptying pipeline collecting pipe bundle and a white oil tank emptying tank, wherein the white oil tank emptying pipeline collecting pipe bundle is connected to a white oil tank emptying inlet through an emptying tank inlet pipeline, a white oil tank emptying outlet is connected to a flare main pipe network through a discharge pipeline, and the tail end of the discharge pipeline is higher than the flare main pipe network and is obliquely connected into the flare main pipe network. The utility model concentrates the white oil tank emptying line of the sub-unit or the sub-device into the newly added white oil tank emptying tank, and the white oil tank emptying tank outlet is provided with a discharge pipeline and the like and is further converged into the main pipeline of the torch. The system can solve the problem that the steam during steam blowing enters the white oil tank to be sealed poorly. Reduce the occurrence of petrochemical toxic hazard medium leakage and safety accidents.

Description

White oil tank emptying system

Technical Field

The utility model belongs to the field of chemical industry, and particularly relates to a white oil tank emptying system.

Background

The white oil tank is mainly used for storing white oil serving as sealing isolation liquid. When refining and separating crude oil in petrochemical industry, a great deal of separation pumps and seal tanks are used. White oil is often used for mechanical sealing of the separation pump and seal pot. However, if the oil level of the white oil tank is improperly controlled or the white oil is watered, the leakage of petrochemical products and safety accidents caused by poor sealing can easily occur.

Because of the design of chemical plant centrifugal pump white oil jar drain line is for discharging into the torch system, but daily have the heat exchanger maintenance steam to sweep, carclazyte tower, dechlorination tower, reactor steam can carry a large amount of steam and get into torch pipeline system when sweeping, white oil jar drain torch system often has the check valve seal not tight, to the steam seal effect is not good enough, leads to steam to get into in the white oil jar, causes very big potential safety hazard to centrifugal pump mechanical seal. The occurrence of petrochemical leakage and safety accidents caused by poor sealing is easy to occur.

Disclosure of Invention

According to the defects of the prior art, the utility model aims to provide a white oil tank emptying system, so that the problem that water vapor enters the white oil tank during steam purging and is poor in mechanical seal is solved. Reduce the occurrence of petrochemical toxic hazard medium leakage and safety accidents.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows: the utility model provides a white oil tank emptying system, includes white oil tank emptying pipeline collection tube bank and white oil tank emptying jar, white oil tank emptying pipeline collection tube bank is connected to white oil tank emptying jar entry through the emptying jar entry pipeline, and white oil tank emptying jar export is connected to the torch total pipe network through the drain line, and the drain line end is higher than the torch total pipe network and links into the torch total pipe network in the slope.

Further, a first check valve is arranged at the tail end of the discharge pipeline, and a back pipeline of the first check valve is obliquely connected into a flare main pipe network.

Further, the first check valve is horizontally arranged higher than the main pipe network of the torch, the back pipeline of the first check valve comprises a horizontal pipe section and an inclined pipe section, the first check valve is connected with the horizontal pipe section, the horizontal pipe section is continuous with the inclined pipe section, and the inclined pipe section is connected into the main pipe network of the torch.

Further, the inclined pipe section is higher than the main pipe network of the torch and is connected into the main pipe network of the torch by 45 degrees of inclined insertion.

Further, a water filtering device is arranged in the white oil tank emptying tank.

Further, the white oil tank emptying tank inlet is positioned at the top of the white oil tank emptying tank, and an upper baffle, a lower baffle and a water vapor removal filter screen are sequentially arranged from the white oil tank emptying tank inlet to the white oil tank emptying tank outlet in the white oil tank emptying tank, so that a water filtering device in the white oil tank emptying tank is formed by the upper baffle, the lower baffle and the water vapor removal filter screen.

Further, the upper baffle is connected at white oil tank emptying tank top, and the lower baffle is connected in white oil tank emptying tank bottom, and upper baffle and lower baffle interval one section distance dislocation set in white oil tank emptying tank, upper baffle and lower baffle are in the partial coincidence of the direction of height of white oil tank emptying tank.

Further, the bottom of the white oil tank emptying tank is connected with a drain line, the drain line is arranged at the outlet side of the white oil tank emptying tank, and a drain valve is arranged on the drain line; the white oil tank emptying tank is provided with a field liquid level meter, a remote transmission liquid level meter and a pressure transmitter, and the liquid level in the white oil tank emptying tank is monitored and a liquid discharge valve is controlled through a remote transmission system.

Further, the head end and the tail end of the blow tank inlet line are respectively provided with a second check valve and a third check valve.

Further, the white oil tank emptying pipeline collecting tube bundle is formed by collecting a plurality of white oil tank emptying pipelines, and the white oil tanks are used for placing white oil of centrifugal pumps and mechanical seals.

The beneficial effects of the utility model are as follows: the utility model concentrates the white oil tank emptying line of the sub-unit or the sub-device into the newly added white oil tank emptying tank, and the white oil tank emptying tank outlet is provided with a discharge pipeline and the like and is further converged into the main pipeline of the torch. The system can solve the problem that the steam during steam blowing enters the white oil tank to be sealed poorly. Reduce the occurrence of petrochemical toxic hazard medium leakage and safety accidents.

Drawings

FIG. 1 is a process flow diagram of a white oil tank emptying system of the present utility model;

in the figure: 1. bai Youguan emptying pipeline collecting tube bundle, 2, white oil tank emptying tank, 3, emptying tank inlet pipeline, 4, discharge pipeline, 4.1 horizontal tube section, 4.2 and inclined tube section, 5, torch main tube network, 6, first check valve, 7, upper baffle, 8, lower baffle, 9, vapor removal filter screen, 10, drain line, 11, drain valve, 12, second check valve, 13, third check valve, 14, each white oil tank, 15, each centrifugal pump and mechanical seal.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The present utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the utility model, whereby the utility model is not limited to the specific embodiments disclosed below.

Referring to fig. 1, a white oil tank emptying system comprises a white oil tank emptying pipeline collecting pipe bundle 1 and a white oil tank emptying tank 2, wherein the white oil tank emptying pipeline collecting pipe bundle 1 is connected to an inlet of the white oil tank emptying tank 2 through an inlet pipeline 3 of the white oil tank, an outlet of the white oil tank emptying tank 2 is connected to a flare main pipe network 5 through a discharge pipeline 4, and the tail end of the discharge pipeline 4 is higher than the flare main pipe network 5 and is obliquely connected into the flare main pipe network 5.

Based on the technical scheme, the tail end of the discharge pipeline 4 is higher than the flare main pipe network 5 and is obliquely connected into the flare main pipe network 5, so that water vapor in the flare main pipe network can be effectively prevented from flowing back into the discharge pipeline 4.

Further, a first check valve 6 is arranged at the tail end of the discharge pipeline 4, and a back pipeline of the first check valve 6 is obliquely connected into the flare main pipe network 5.

Further, the first check valve 6 is horizontally arranged higher than the flare main pipe network 5, the back pipeline of the first check valve 6 comprises a horizontal pipe section 4.1 and an inclined pipe section 4.2, the first check valve 6 is connected with the horizontal pipe section 4.1, the horizontal pipe section 4.1 is continuous with the inclined pipe section 4.2, and the inclined pipe section 4.2 is connected into the flare main pipe network 5.

Further, the inclined pipe section 4.2 is higher than the flare main pipe network 5 and is connected into the flare main pipe network 5 by 45 degrees in an inclined insertion mode.

Further, a water filtering device is arranged in the white oil tank emptying tank 2.

Further, the white oil tank emptying tank inlet is positioned at the top of the white oil tank emptying tank 2, and an upper baffle 7, a lower baffle 8 and a water vapor removal filter screen 9 are sequentially arranged from the white oil tank emptying tank inlet to the white oil tank emptying tank outlet in the white oil tank emptying tank, and the upper baffle 7, the lower baffle 8 and the water vapor removal filter screen 9 form a water filtering device in the white oil tank emptying tank.

Further, the upper baffle 7 is connected at the top of the white oil tank, the lower baffle 8 is connected at the bottom of the white oil tank, the upper baffle 7 and the lower baffle 8 are arranged at intervals in the white oil tank in a staggered mode, and the upper baffle 7 and the lower baffle 8 are partially overlapped in the height direction of the white oil tank. The upper baffle 7 and the lower baffle 8 isolate the inside of the white oil tank emptying tank 2 to form a serpentine space, so that liquid phase water and trace vapor phase water are effectively prevented from passing through.

Further, the bottom of the white oil tank emptying tank 2 is connected with a drain line 10, the drain line 10 is arranged at the outlet side of the white oil tank emptying tank 2, and a drain valve 11 is arranged on the drain line 10; the white oil tank emptying tank 2 is provided with an on-site liquid level meter, a remote transmission liquid level meter and a pressure transmitter, and the liquid level in the white oil tank emptying tank 2 is monitored and a liquid discharge valve 11 is controlled through a remote transmission system.

Based on the above technical scheme, drain line 10 sets up in the one side that vapor filter screen 9 is close to white oil jar blow tank outlet.

Further, the blow tank inlet line 3 is provided with a second check valve 12 and a third check valve 13 at the head and tail ends, respectively.

Further, the white oil tank emptying line collecting tube bundle 1 is formed by collecting the emptying lines of a plurality of white oil tanks, and the white oil tanks are used for placing white oil of centrifugal pumps and mechanical seals.

Compared with the prior art, the utility model makes the following improvements: 1. the newly added white oil tank emptying line is connected into the newly added white oil tank emptying tank through the newly added emptying tank inlet pipeline 3, the second check valve 12 and the third check valve 13; 2. the white oil tank emptying tank 2 (about 5 cubic meters of horizontal storage tank) is newly added, and white oil tank emptying lines such as a centrifugal pump and the like are collected in the white oil tank emptying tank 2. 3. The baffles 7 and 8 in the white oil emptying tank can effectively prevent liquid phase water and trace vapor phase water from entering the white oil tank emptying pipeline. 4. The new water vapor filter screen 9 effectively intercepts water vapor to condense liquid phase water, and prevents vapor phase water from passing through to the maximum extent. 5. And a drain line for periodically draining the liquid phase water in the white oil tank emptying tank 2. 6. The white oil tank emptying tank 2 is discharged to the flare main pipe network 5, so that the gas phase can be discharged to a flare system.

The utility model concentrates the white oil tank emptying line of the sub-unit or the sub-device into the newly added white oil tank emptying tank, and the white oil tank emptying tank outlet is provided with a discharging line, a first check valve and other pipelines which are then converged into the main torch pipeline. The white oil tank emptying tank is provided with a field liquid level meter, a remote transmission liquid level meter and a pressure transmitter, and is provided with a liquid discharge valve group. A baffle and a vapor removal filter screen 9 (a foam removal screen) are arranged in the white oil tank emptying tank to prevent vapor from entering the white oil tank. The problem that steam enters the white oil tank and is poor in mechanical seal during steam blowing can be solved. Reduce the occurrence of petrochemical toxic hazard medium leakage and safety accidents.

The terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying 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," "connected," "secured," 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 being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher 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.

The foregoing list is only the preferred embodiments of the present utility model. Obviously, the utility model is not limited to the above embodiments, but many variations are possible. All modifications directly derived or suggested to one skilled in the art from the present disclosure should be considered as being within the scope of the present utility model.

Claims (9)

1. A white oil tank emptying system, characterized in that: the device comprises a white oil tank emptying pipeline collecting pipe bundle and a white oil tank emptying tank, wherein the white oil tank emptying pipeline collecting pipe bundle is connected to a white oil tank emptying tank inlet through an emptying tank inlet pipeline, a white oil tank emptying tank outlet is connected to a flare main pipe network through a discharging pipeline, and the tail end of the discharging pipeline is higher than the flare main pipe network and is obliquely connected into the flare main pipe network.

2. A white oil tank emptying system as claimed in claim 1, characterized in that: the tail end of the discharge pipeline is provided with a first check valve, and a back pipeline of the first check valve is obliquely connected into a flare main pipe network.

3. A white oil tank emptying system as claimed in claim 2, characterized in that: the first check valve is higher than the level installation of the main pipe network of the torch, the back pipeline of the first check valve comprises a horizontal pipe section and an inclined pipe section, the first check valve is connected with the horizontal pipe section, the horizontal pipe section is continuous with the inclined pipe section, and the inclined pipe section is connected into the main pipe network of the torch.

4. A white oil tank emptying system as claimed in claim 3, characterized in that: the inclined pipe section is higher than the main pipe network of the torch and is connected into the main pipe network of the torch by 45 degrees of inclined insertion.

5. A white oil tank emptying system as claimed in claim 1, characterized in that: the white oil tank is internally provided with a water filtering device.

6. A white oil tank emptying system as claimed in claim 1 or 5, characterized in that: the white oil tank emptying tank inlet is positioned at the top of the white oil tank emptying tank, and an upper baffle, a lower baffle and a water removal filter screen are sequentially arranged from the white oil tank emptying tank inlet to the white oil tank emptying tank outlet in the white oil tank emptying tank, so that a water filtering device in the white oil tank emptying tank is formed by the upper baffle, the lower baffle and the water removal filter screen.

7. A white oil tank emptying system as claimed in claim 6, wherein: the upper baffle is connected to the top of the white oil tank, the lower baffle is connected to the bottom of the white oil tank, the upper baffle and the lower baffle are arranged in the white oil tank in a staggered mode at intervals, and the upper baffle and the lower baffle are partially overlapped in the height direction of the white oil tank.

8. A white oil tank emptying system as claimed in claim 1, characterized in that: the drain line is arranged at the outlet side of the white oil tank emptying tank, and a drain valve is arranged on the drain line.

9. A white oil tank emptying system as claimed in claim 1, characterized in that: the head end and the tail end of the inlet pipeline of the emptying tank are respectively provided with a second check valve and a third check valve.

Images