CN217382499U - Low pressure torch gas water seal tank - Google Patents

Abstract

The utility model relates to a low pressure torch air water seal tank relates to the water seal tank field, and the jar body has return gas mouth and oil drain port, and return gas mouth and oil drain port all set up in the lateral wall of the jar body and with oil extraction pipeline intercommunication, and the return gas mouth is located the top of oil drain port. The utility model has the advantages that: the floating oil is collected periodically through the oil discharge port, and the safe operation of the system is ensured. In the floating oil collecting process, if torch gas enters an oil discharging pipeline, the risk of fire and explosion exists. Set up the return air mouth, the gas density that enters into the oil extraction pipeline is little, and it is internal that the jar is returned to the return air mouth discharge from the top naturally, has avoided oil extraction pipeline to catch fire the danger of explosion.

Description

Low pressure torch gas water seal tank

Technical Field

The utility model relates to a water seal tank field, concretely relates to low pressure torch air water seal tank.

Background

Combustible gas that each device produced in the normal chemical production need arrange low pressure torch gas outward, send to the low pressure torch gas of torch device and divide liquid jar once more after dividing liquid jar and carry out preliminary liquid. Then the flare gas enters the low-pressure water-sealed tank, and an inlet pipeline is buried in the water-sealed liquid of the low-pressure water-sealed tank.

The water-sealed tank has the function of preventing the occurrence of a backfire phenomenon, and if the backfire occurs, the flame enters the water-sealed tank through the flare gas outlet and then is prevented from being continuously transmitted because the inlet pipeline is below the water surface.

When chemical production device was because of all kinds of troubles or abnormal operating mode, can not be divided in the torch gas divides the fluid reservoir, can become oil at the condensation in low pressure water seal tank water, because the blowdown of water seal tank sets up in the bottom, the oil slick can constantly accumulate, causes major potential safety hazards such as fire and rain. After oil is condensed, the float of the on-site and remote-transmission liquid level meter is blocked, and the normal display of the liquid level meter is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem of how to get rid of the floating oil in the water seal jar.

The utility model provides an above-mentioned technical problem's technical scheme as follows: the utility model provides a low pressure torch air water seal tank, includes a jar body, the jar body has torch gas import and torch gas export, the torch gas import is located the lower part of the jar body, the torch gas export is located the upper portion of the jar body still includes oil extraction pipeline, the jar body has gas return port and oil drain port, the gas return port with the oil drain port all set up in the lateral wall of the jar body and with oil extraction pipeline intercommunication, the gas return port is located the top of oil drain port.

The beneficial effects of the utility model are that: the floating oil is collected periodically through the oil discharge port, and the safe operation of the system is ensured. In the floating oil collecting process, if torch gas enters an oil discharging pipeline, the risk of fire and explosion exists. Set up the return air mouth, the gas density that enters into the oil extraction pipeline is little, and it is internal that the jar is returned to the return air mouth discharge from the top naturally, has avoided oil extraction pipeline to catch fire the danger of explosion.

On the basis of the technical scheme, the utility model discloses can also do following improvement.

Further, the oil drain port is equipped with at least two, at least two the oil drain port from top to bottom interval sets up.

The beneficial effect of adopting the further scheme is that: the oil liquid can be layered due to different densities, and at least two oil discharge ports can respectively discharge the oil liquid with different densities for recovery.

Further, the middle part of the oil drainage pipeline is provided with a U-shaped pipe section with an upward opening.

The beneficial effect of adopting the further scheme is that: the middle part is provided with a U-shaped pipe section, thereby further avoiding the outward discharge of flare gas.

Furthermore, the heat tracing pipeline is fixed on the outer wall of the tank body.

The beneficial effect of adopting the further scheme is that: the heat tracing pipeline can heat the tank body and is used for preventing freezing in winter.

Further, still include an overflow section of thick bamboo and intake pipe, an overflow section of thick bamboo is fixed in the internal diapire of jar, the top of an overflow section of thick bamboo is uncovered, the lower extreme of intake pipe penetrates in the jar is internal and extend to lower part in an overflow section of thick bamboo, the lower extreme of intake pipe has the torch gas import.

The beneficial effect of adopting the further scheme is that: the overflow cylinder limits the water level in the tank body and ensures that the water level is not higher than a set value.

Further, be located in the overflow section of thick bamboo jar body diapire has a section of thick bamboo interior drain hole and water inlet, a section of thick bamboo interior drain hole with water inlet department is equipped with a section of thick bamboo interior drain valve and water intaking valve respectively.

The beneficial effect of adopting the further scheme is that: fresh water is injected through the water inlet, thereby maintaining the liquid level stable. The inner drain outlet is used for discharging impurities at the bottom of the overflow cylinder.

The overflow tank is characterized by further comprising a controller, an in-tank local liquid level meter and an in-tank remote liquid level meter, wherein the in-tank local liquid level meter and the in-tank remote liquid level meter are communicated with the inside of the overflow tank, the in-tank remote liquid level meter is in communication connection with the controller, and the controller is in communication connection with the water inlet valve.

The beneficial effect of adopting the further scheme is that: the in-cylinder in-situ liquid level meter indicates the liquid level in situ, the in-cylinder remote liquid level meter transmits liquid level information to the controller, and if the liquid level information is lower than a set value, the controller opens the water inlet valve to replenish water. And the in-cylinder local liquid level meter and the in-cylinder remote liquid level meter can be compared for checking whether the liquid level meter works normally.

Furthermore, the bottom wall of the tank body positioned outside the overflow cylinder is provided with an outer cylinder sewage discharge port, and the outer cylinder sewage discharge port is provided with an outer cylinder sewage discharge valve.

The beneficial effect of adopting the further scheme is that: the outer drain outlet of the barrel is used for discharging impurities in the tank body outside the overflow barrel.

Further, the device also comprises an external local liquid level meter, and the external local liquid level meter is communicated with the tank body outside the overflow cylinder.

The beneficial effect of adopting the further scheme is that: the external on-site liquid level meter is used for observing the liquid level outside the overflow cylinder.

The temperature measuring device further comprises a thermometer, wherein the thermometer is fixedly connected with the tank body and used for detecting the temperature in the tank body.

The beneficial effect of adopting the further scheme is that: the thermometer displays the temperature in the tank body, whether the tank body is at the normal working temperature or not is observed, and if the temperature is lower, the heat tracing pipeline can be started.

Drawings

FIG. 1 is a schematic view of the low-pressure flare gas-water tank sealing structure of the present invention, in which the dotted line indicates the position of the heat-tracing pipe, and the arrow indicates the flowing direction of the liquid in the heat-tracing pipe;

fig. 2 is a left side view of the oil discharge pipeline of the present invention, and the dotted line in the figure represents the liquid level in the tank body.

In the drawings, the components represented by the respective reference numerals are listed below:

1. a tank body; 101. a flare gas inlet; 102. a flare gas outlet; 103. an air return port; 104. an oil discharge port; 105. a drain port in the barrel; 106. a water inlet; 107. a drain outlet outside the barrel; 2. an oil discharge pipeline; 3. a heat tracing pipeline; 4. an overflow cylinder; 5. an in-situ liquid level gauge in the barrel; 6. a remote-transmission liquid level meter in the cylinder; 7. an off-cylinder in-situ level gauge; 8. a thermometer.

Detailed Description

The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.

As shown in fig. 1 and fig. 2, this embodiment is a low pressure flare gas water seal tank, including jar body 1, jar body 1 has flare gas import 101 and flare gas export 102, flare gas import 101 is located the lower part of jar body 1, flare gas export 102 is located the upper portion of jar body 1 still includes oil drain pipeline 2, jar body 1 has gas return port 103 and oil drain port 104, gas return port 103 with oil drain port 104 all set up in the lateral wall of jar body 1 and with oil drain pipeline 2 intercommunication, gas return port 103 is located the top of oil drain port 104.

The floating oil is collected periodically through the oil outlet 104, and the safe operation of the system is ensured. In the floating oil collecting process, if torch gas enters the oil discharge pipeline 2, the risk of fire and explosion exists. The gas return port is arranged, so that the density of gas entering the oil discharge pipeline 2 is low, and the gas is naturally discharged back into the tank body 1 from the gas return port 103 above, thereby avoiding the danger of fire and explosion of the oil discharge pipeline 2.

As shown in fig. 2, in actual use, the air return port 103 is located above the liquid level of the tank body 1, and the oil discharge port 104 is located below the liquid level and is disposed at a position close to the liquid level, so as to discharge the floating oil on the upper layer of the water-sealed tank.

Optionally, the flare gas inlet 101 may be opened in the lower side wall or bottom wall of the tank 1, or may also extend to the lower part of the tank 1 through a gas inlet pipe, and the end of the gas inlet pipe is provided with the flare gas inlet 101.

On the basis of the scheme, the number of the oil discharge ports 104 is at least two, and the oil discharge ports 104 are arranged at intervals from top to bottom.

The oil liquid can be layered due to different densities, and at least two oil outlets 104 can respectively discharge the oil liquid with different densities for recycling.

Specifically, each oil drain port 104 is connected to the oil drain pipeline 2 through an oil drain valve, a pipeline main valve is arranged in the oil drain pipeline 2, and the oil drain valve and the pipeline main valve are used for controlling the on-off of the pipeline.

On the basis of any of the above solutions, the middle part of the oil drainage pipeline 2 is provided with a U-shaped pipe section with an upward opening.

As shown in FIG. 2, the U-shaped pipe section is arranged in the middle part, so that flare gas is further prevented from being discharged outwards.

On the basis of the scheme, the heat tracing pipe 3 is further included, and the heat tracing pipe 3 is fixed on the outer wall of the tank body 1.

The heat tracing pipeline 3 can heat the tank body 1 and is used for preventing freezing in winter. Specifically, heated medium is introduced into the heat tracing pipeline 3, and heat is conducted to the tank body 1 by the medium.

On the basis of any scheme, still include an overflow section of thick bamboo 4 and intake pipe, an overflow section of thick bamboo 4 is fixed in the diapire in the jar body 1, the top of an overflow section of thick bamboo 4 is uncovered, the lower extreme of intake pipe penetrates in the jar body 1 and extends to the lower part in an overflow section of thick bamboo 4, the lower extreme of intake pipe has torch gas import 101.

The overflow cylinder 4 limits the water level in the tank 1 to ensure that the water level is not higher than a set value. The oil slick on the liquid surface in the overflow cylinder 4 will be discharged out of the overflow cylinder 4 by means of overflow.

Regarding the arrangement mode of the flare gas inlet 101, specifically, an air inlet pipe penetrates from the top of the tank body 1, the lower end of the air inlet pipe is provided with the flare gas inlet 101, and the upper end of the air inlet pipe is located outside the tank body 1 and used for air inlet.

On the basis of any scheme, the bottom wall of the tank body 1 in the overflow cylinder 4 is provided with an in-cylinder sewage discharge port 105 and a water inlet 106, and the in-cylinder sewage discharge valve and the water inlet valve are respectively arranged at the in-cylinder sewage discharge port 105 and the water inlet 106.

Fresh water is injected through the water inlet 106 to maintain the liquid level stable. The in-cylinder drain port 105 is used for discharging impurities at the bottom of the overflow cylinder 4.

On the basis of any scheme, the device further comprises a controller, an in-cylinder in-situ liquid level meter 5 and an in-cylinder remote liquid level meter 6, wherein the in-cylinder in-situ liquid level meter 5 and the in-cylinder remote liquid level meter 6 are communicated with the inside of the overflow cylinder 4, the in-cylinder remote liquid level meter 6 is in communication connection with the controller, and the controller is in communication connection with the water inlet valve.

The in-cylinder local liquid level meter 5 indicates the liquid level in situ, the in-cylinder remote liquid level meter 6 transmits liquid level information to the controller, and if the liquid level information is lower than a set value, the controller opens the water inlet valve to replenish water. And the in-cylinder local liquid level meter 5 and the in-cylinder remote liquid level meter 6 can be compared for checking whether the liquid level meters work normally or not. If the difference between the displayed liquid levels is large and exceeds a preset error value, excessive oil floating in the tank body 1 possibly exists, and the normal display of the liquid level meter is influenced. At the moment, the air return port and the oil discharge port can be opened for oil discharge; or the work of the water seal tank can be stopped, the liquid and the gas in the tank body 1 are discharged, and the maintenance is carried out through the maintenance opening of the tank body 1.

Alternatively, the in-cartridge in-situ level gauge 5 is not normally connected to the controller and is compared to the in-cartridge remote level gauge 6 by means of manual observation of the values. Of course, the in-cylinder in-situ liquid level meter 5 can also be in communication connection with the controller, and the numerical values of the in-cylinder in-situ liquid level meter 5 and the in-cylinder remote liquid level meter 6 are compared through the controller.

Specifically, in this embodiment, the upper ends of the in-situ liquid level meter 5 and the in-tube remote-transmission liquid level meter 6 in the tube are communicated with the side wall above the liquid level of the tank body 1, and the lower ends of the in-situ liquid level meter 5 and the in-tube remote-transmission liquid level meter 6 in the tube are communicated with the lower part of the liquid level in the overflow tube 4, so that the liquid level in the tube can be detected, and the internal pressure of the liquid level meter can be balanced.

On the basis of any scheme, the bottom wall of the tank body 1, which is positioned outside the overflow cylinder 4, is provided with an outer cylinder sewage discharge port 107, and an outer cylinder sewage discharge valve is arranged at the outer cylinder sewage discharge port 107.

The outer-barrel sewage draining outlet 107 is used for draining impurities in the tank body 1 outside the overflow barrel 4.

On the basis of any scheme, the overflow tank further comprises an external local liquid level meter 7, and the external local liquid level meter 7 is communicated with the tank body 1 outside the overflow tank 4.

The off-cartridge in-situ level gauge 7 is used to observe the level of liquid outside the overflow cartridge 4.

Specifically, in this embodiment, the upper end of the external local level gauge 7 is communicated with the side wall above the liquid level of the tank body 1, and the lower end of the external local level gauge 7 is communicated with the lower part of the liquid level of the overflow tank 4, so that the external liquid level can be detected, and the internal pressure of the level gauge can be balanced.

On the basis of any scheme, the temperature measuring device further comprises a thermometer 8, wherein the thermometer 8 is fixedly connected with the tank body 1 and is used for detecting the temperature in the tank body 1.

The thermometer 8 displays the temperature in the tank body 1, observes whether the temperature is at the normal working temperature or not, and if the temperature is lower, the heat tracing pipeline 3 can be started.

In the description of the present invention, it should be noted that the terms "upper", "lower", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the present application, unless expressly stated or limited otherwise, a first feature "on" or "under" a second feature may be directly contacting the second feature or the first and second features may be indirectly contacting the second feature through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims (10)

1. The utility model provides a low pressure torch gas water seal tank, includes jar body (1), jar body (1) has torch gas import (101) and torch gas export (102), torch gas import (101) are located the lower part of jar body (1), torch gas export (102) are located the upper portion of jar body (1), its characterized in that still includes oil drainage pipeline (2), jar body (1) has gas return port (103) and oil drain (104), gas return port (103) with oil drain (104) all set up in the lateral wall of jar body (1) and with oil drainage pipeline (2) intercommunication, gas return port (103) are located the top of oil drain (104).

2. The low-pressure flare gas water seal tank of claim 1, wherein at least two oil discharge ports (104) are provided, and at least two oil discharge ports (104) are arranged at intervals from top to bottom.

3. The low-pressure flare gas-water seal tank of claim 1, wherein the middle part of the oil discharge pipeline (2) is provided with a U-shaped pipe section with an upward opening.

4. The low-pressure flare gas water seal tank is characterized by further comprising a heat-tracing pipeline (3), wherein the heat-tracing pipeline (3) is fixed on the outer wall of the tank body (1).

5. The low-pressure flare gas water seal tank is characterized by further comprising an overflow cylinder (4) and a gas inlet pipe, wherein the overflow cylinder (4) is fixed on the bottom wall in the tank body (1), the top of the overflow cylinder (4) is open, the lower end of the gas inlet pipe penetrates into the tank body (1) and extends to the lower part in the overflow cylinder (4), and the lower end of the gas inlet pipe is provided with the flare gas inlet (101).

6. The low-pressure flare gas water seal tank is characterized in that the bottom wall of the tank body (1) in the overflow cylinder (4) is provided with an in-cylinder sewage discharge port (105) and a water inlet (106), and an in-cylinder sewage discharge valve and a water inlet valve are respectively arranged at the in-cylinder sewage discharge port (105) and the water inlet (106).

7. The low-pressure flare gas water seal tank is characterized by further comprising a controller, an in-cylinder in-situ liquid level meter (5) and an in-cylinder remote liquid level meter (6), wherein the in-cylinder in-situ liquid level meter (5) and the in-cylinder remote liquid level meter (6) are communicated with the inside of the overflow cylinder (4), the in-cylinder remote liquid level meter (6) is in communication connection with the controller, and the controller is in communication connection with the water inlet valve.

8. The low-pressure flare gas water seal tank is characterized in that an outer tank drain outlet (107) is formed in the bottom wall of the tank body (1) outside the overflow tank (4), and an outer tank drain valve is arranged at the outer tank drain outlet (107).

9. The low-pressure flare gas water seal tank is characterized by further comprising an external on-site liquid level meter (7), wherein the external on-site liquid level meter (7) is communicated with the tank body (1) outside the overflow tank (4).

10. The low-pressure torch gas-water sealed tank according to any one of claims 1 to 4, further comprising a thermometer (8), wherein the thermometer (8) is fixedly connected with the tank body (1) and is used for detecting the temperature in the tank body (1).

Images