CN213569627U - Airtight water system of cutting of storage tank - Google Patents

Abstract

The utility model relates to an airtight water system of cutting of storage tank, including storage tank, oil slick collecting vessel, sump oil jar and waste water tank, the cut mouth of a river of the lower part of storage tank with the pipeline intercommunication is passed through in the import of oil slick collecting vessel, the outlet of oil slick collecting vessel with the waste water tank passes through the pipeline intercommunication, the oil drain port of oil slick collecting vessel with the sump oil jar passes through the pipeline intercommunication, be equipped with the two liquid level measurement level gauges of profit in the storage tank. The utility model has the advantages that: the function of airtight water cutting is realized. Safety, the oil products are prevented from leaking to a sewage system, and the safety risk is reduced; the method is environment-friendly, reduces the oil content in the sewage, and reduces the oil removal cost in sewage treatment; the simplified operation even adopt artifical water cutting, has the oil to carry out water oil separating from cutting the mouth of a river discharge back, can also carry out oil water separation through the oil slick collecting tank, and the operation degree of difficulty reduces, reduces the cost of labor, improves work efficiency.

Description

Airtight water system of cutting of storage tank

Technical Field

The utility model relates to a petrochemical industry field, concretely relates to airtight water system of cutting of storage tank.

Background

The problem of cutting water of oil tank in petrochemical enterprise is a big hidden danger of safety in production, and in the production process, the higher water content is very easily caused the machine pump cavitation and catalyst crystallization in the oil, and the storage tank is generally adopted at present to open the valve through the bottom cut mouth of a river and is cut the water, arranges to the sewage pipe network on the spot, and personnel monitor, and the valve can be closed to storage tank bottom cut water valve, stops cutting water to have the oil to cut the back. A small amount of oil is inevitably cut into a sewage pipe network along with water in the water cutting process and flows into an initial rainwater pool. Because the volatility of oil is stronger, the oil cuts airtight spaces such as ground well will increase storage tank safety risk, and initial stage rainwater pond oil content is high simultaneously, increases initial stage rainwater pond sump oil recovery cost.

The prior art has the following disadvantages: a small amount of oil is inevitably cut into a sewage pipe network along with water, so that oil is carried in a sewage well and an initial rainwater pool, combustible gas in the well exceeds the standard, and potential safety hazards exist. Secondly, the oil content of the initial rainwater tank is high, so that the discharged sewage index is unqualified, and the recovery cost of the sump oil of the initial rainwater tank is increased. The manual water cutting method which is commonly adopted at present has high labor intensity, depends on the responsibility of an operator, and can cause oil leakage accidents by a little negligence, thereby seriously affecting the safety and the environmental protection.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that will solve is how safe effective water of cutting.

The utility model provides an above-mentioned technical problem's technical scheme as follows: the utility model provides an airtight water system of cutting of storage tank, its characterized in that, includes storage tank, oil slick collecting tank, sump oil jar and waste water tank, the cut mouth of a river of the lower part of storage tank with the import of oil slick collecting tank passes through the pipeline intercommunication, the outlet of oil slick collecting tank with the waste water tank passes through the pipeline intercommunication, the oil drain port of oil slick collecting tank with the sump oil jar passes through the pipeline intercommunication, be equipped with the two liquid level measurement level gauges of profit in the storage tank.

The utility model has the advantages that: the liquid level meter in the storage tank of the oil product is replaced by an oil-water double-liquid-level measuring liquid level meter, water is cut through a water cutting opening of the storage tank, and the water is collected into a floating oil collecting tank. The oil in the floating oil collecting tank is naturally layered up and down, the water in the lower layer is discharged to the waste water tank, and the oil in the upper layer is discharged to the dirty oil tank. The airtight water system of cutting of storage tank realizes airtight function of cutting water, and the advantage lies in: safety is realized, the oil products are prevented from leaking to a sewage system, and the safety risk is reduced; secondly, the environment is protected, the oil content in the sewage is reduced, and the oil removal cost in the sewage treatment is reduced; the simplified operation, even adopt artifical water of cutting, have the oil to carry out water oil separating from cutting the mouth of a river discharge back, can also carry out oil water separation through the oil slick collecting tank, the operation degree of difficulty reduces, reduces the cost of labor, improves work efficiency.

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

The floating oil collecting tank is characterized by further comprising a water cutting pump, wherein the inlet of the water cutting pump is communicated with the water cutting port through a pipeline, and the outlet of the water cutting pump is communicated with the inlet of the floating oil collecting tank through a pipeline.

The beneficial effect of adopting the further scheme is that: and a cutting water pump is additionally arranged in the safe distance, and the wastewater and the floating oil are conveyed to a floating oil collecting tank through the cutting water pump.

Preferably, the water cutting pump is a centrifugal pump.

And the sewage pump is characterized by further comprising a sewage pump, wherein the inlet of the sewage pump is communicated with the water outlet of the floating oil collecting tank through a pipeline, and the outlet of the sewage pump is communicated with the wastewater tank through a pipeline.

The beneficial effect of adopting the further scheme is that: and the sewage is sent to a wastewater tank through a sewage pump for storage and waiting for subsequent treatment.

Further, still include the sump oil pump, the import of sump oil pump with the oil drain port of oil slick collecting tank passes through the pipeline intercommunication, its export with the sump oil jar passes through the pipeline intercommunication.

The beneficial effect of adopting the further scheme is that: and (4) after the floating oil is collected, the floating oil is conveyed to a dirty oil storage tank through a dirty oil pump, and the floating oil is stored and recycled or recovered to an oil product production device for secondary processing.

Furthermore, a water cutting valve is arranged on a pipeline communicated with a water cutting opening of the storage tank.

The beneficial effect of adopting the further scheme is that: the water cutting port is controlled to be opened and closed by a water cutting valve.

Wherein, the water cutting valve is manually controlled or automatically controlled.

Further, the storage tank is a plurality of, a plurality of the storage tank all with the import of oil slick collecting tank passes through the pipeline intercommunication.

The beneficial effect of adopting the further scheme is that: one or more of the tanks may be simultaneously shut off.

Further, the storage tank with pipeline between the oil slick collecting tank includes that the owner cuts water pipe way and a plurality of branch and cuts water pipe way, and is a plurality of the storage tank is equallyd divide and is passed through branch cut water pipe way with the main water pipe way intercommunication of cutting, every be equipped with one on the branch cut water pipe way cut the water valve, the main one end of cutting the water pipe way with the import intercommunication of oil slick collecting tank.

The beneficial effect of adopting the further scheme is that: the communicating structure is simple, and the pipeline arrangement is convenient.

Further, the waste water tank is communicated with the water treatment device through a pipeline.

The beneficial effect of adopting the further scheme is that: the waste water in the waste water tank is discharged after being treated by the water treatment device, so that the environment is protected.

Further, the sump oil tank is communicated with the production device through a pipeline.

The beneficial effect of adopting the further scheme is that: the oil in the dirty oil tank is recycled to the production device for secondary processing, and the oil product is reduced and wasted.

Furthermore, all the pipelines are made of stainless steel.

The beneficial effect of adopting the further scheme is that: the water cut out in the storage tank is usually acidic, and the pipeline made of stainless steel can avoid the pipeline from being corroded and damaged, so that the service life of the pipeline is prolonged.

Drawings

Fig. 1 is a schematic diagram of the closed water-cutting system of the storage tank of the present invention.

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

1. the device comprises a storage tank, 2, a floating oil collecting tank, 3, a sump oil tank, 4, a wastewater tank, 5, a water cutting pump, 6, a sewage pump, 7, a sump oil pump and 8, and a water cutting valve.

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, the present embodiment provides a closed water cutting system for a storage tank, which includes a storage tank 1, a floating oil collecting tank 2, a dirty oil tank 3 and a waste water tank 4, wherein a water cutting opening at the lower part of the storage tank 1 is communicated with an inlet of the floating oil collecting tank 2 through a pipeline, a water outlet of the floating oil collecting tank 2 is communicated with the waste water tank 4 through a pipeline, an oil discharge opening of the floating oil collecting tank 2 is communicated with the dirty oil tank 3 through a pipeline, and an oil-water dual-level measuring level meter is arranged in the storage tank 1.

In this embodiment, the level gauge is changed to the two level measurement level gauges of profit in the storage tank 1 with the oil, cuts water through the mouth of a river of cutting of storage tank 1 to collect in the oil slick collecting tank 2. The oil in the floating oil collecting tank 2 is naturally layered up and down, the water in the lower layer is discharged to the waste water tank 4, and the oil in the upper layer is discharged to the dirty oil tank 3. The airtight water system of cutting of storage tank 1 realizes airtight function of cutting water, and the advantage lies in: safety is realized, the oil products are prevented from leaking to a sewage system, and the safety risk is reduced; secondly, the environment is protected, the oil content in the sewage is reduced, and the oil removal cost in the sewage treatment is reduced; the simplified operation, even adopt artifical water of cutting, have the oil to carry out water oil separating from cutting the mouth of a river discharge back, can also carry out oil water separation through the oil slick collecting tank, the operation degree of difficulty reduces, reduces the cost of labor, improves work efficiency.

Specifically, as shown in fig. 1, the floating oil collecting tank 2 comprises a main tank body and a water drum, the water drum is fixed and communicated with the bottom of the main tank body, a boundary level meter is arranged in the water drum, and a liquid level meter is arranged in the main tank body. The oil water in the floating oil collecting tank 2 is naturally layered from top to bottom, water flows into a water bag at the bottom, a small part of the oil is in the water bag, a large part of the oil is stored in a main tank body at the top, and the interface of the water and the oil is in the water bag.

In the above embodiment, preferably, the floating oil collecting tank further comprises a water cutting pump 5, an inlet of the water cutting pump 5 is communicated with the water cutting port through a pipeline, and an outlet of the water cutting pump 5 is communicated with an inlet of the floating oil collecting tank 2 through a pipeline.

Wherein, preferably, the water cutting pump is a centrifugal pump. In one embodiment, the specific parameters of the centrifugal pump are as follows: flow rate Q15³H, head H is 40m, motor power N is 15Kw, explosion protection grade dii CT4, protection grade IP 55.

In any of the above embodiments, preferably, the sewage treatment system further comprises a sewage pump 6, wherein an inlet of the sewage pump 6 is communicated with the drainage port of the floating oil collecting tank 2 through a pipeline, and an outlet of the sewage pump 6 is communicated with the wastewater tank 4 through a pipeline.

In any of the above embodiments, preferably, the device further comprises a dirty oil pump 7, an inlet of the dirty oil pump 7 is communicated with the oil discharge port of the floating oil collecting tank 2 through a pipeline, and an outlet of the dirty oil pump 7 is communicated with the dirty oil tank 3 through a pipeline.

In any of the above embodiments, preferably, a water cutting valve 8 is disposed on the pipeline communicated with the water cutting port of the storage tank 1.

Wherein, the water cutting valve 8 is manually controlled or automatically controlled. Specifically, a manual water cutting mode is adopted, the oil-water double-liquid-level measuring liquid level meter in the storage tank 1 is observed, when the storage tank 1 needs to cut water, the corresponding water cutting valve 8 is opened, the water cutting pump 5 is opened, and the water cutting valve 8 is closed after all water in the storage tank 1 is cut. Or the water can be cut in an automatic control mode, a controller is arranged, the water cutting valve 8, the water cutting pump 5 and the oil-water dual-level measuring liquid level meter are all electrically connected with the controller and transmit signals, when the water-oil interface level of the oil-water dual-level measuring liquid level meter exceeds a set value, the controller controls the water cutting valve 8 and the water cutting pump 5 to be opened, and when the water-oil interface level of the oil-water dual-level measuring liquid level meter is reduced to 0, the controller controls the water cutting valve 8 and the water cutting pump 5 to be closed.

In any of the above embodiments, preferably, the storage tank 1 is multiple, and the storage tanks 1 are all communicated with the inlet of the floating oil collecting tank 2 through a pipeline.

In any of the above embodiments, preferably, the pipelines between the storage tank 1 and the floating oil collecting tank 2 include a main water cutting pipeline and a plurality of branch water cutting pipelines, the plurality of storage tanks 1 are respectively communicated with the main water cutting pipeline through the branch water cutting pipelines, each branch water cutting pipeline is provided with one water cutting valve 8, and one end of the main water cutting pipeline is communicated with the inlet of the floating oil collecting tank 2.

Specifically, the water cutting pump 5 is connected in series to the main water cutting pipeline and is located at one end close to the floating oil collecting tank 2.

In any of the above embodiments, preferably, the wastewater tank 4 is in communication with the water treatment device through a pipeline.

In any of the above embodiments, preferably, the dirty oil tank 3 is in communication with the production device through a pipeline.

In any of the above embodiments, preferably, all the pipes are made of stainless steel.

The storage tank closed water cutting system adopting the embodiment has the following specific operation process:

1. observing the liquid level and the boundary level of the oil storage tank 1, wherein the boundary level reaches 10% of the total height of the oil storage tank 1;

2. opening a water cutting valve 8, wherein the storage tank 1 is a normal pressure tank and is pressed to an inlet of a water cutting pump 5 through the self weight of liquid in the storage tank 1;

3. and opening an inlet hand valve of the water cutting pump 5 to fill the pump, and starting the water cutting pump 5 to pump the water in the storage tank 1 to the floating oil collecting tank 2. When the boundary position of the floating oil collecting tank 2 rises to 60% of the total height of the water drum, starting a sewage pump 6 to discharge the wastewater to a wastewater tank 4; and when the liquid level of the floating oil collecting tank 2 rises to 60 percent of the main tank body, the sump oil pump 7 is started to discharge sump oil to the sump oil tank 3.

In the floating oil collecting tank 2, the liquid level represents the height of the upper surface of the dirty oil, the interface level represents the height of the upper surface of the dirty water, and whether the dirty oil pump or the sewage pump is started or not is judged through the interface level and the liquid level. 60% is the safe liquid level of oil slick collecting tank 2, reaches liquid level 60% back, starts sump oil pump 7 and can not cause oil slick collecting tank 2 to take place the jar that overflows, can not lead to the sump oil pump simultaneously and manage to find time, satisfies service condition.

In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "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 particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. 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 an airtight water cut system of storage tank, its characterized in that, includes storage tank (1), oil slick collecting tank (2), sump oil jar (3) and waste water jar (4), the water cut mouth of the lower part of storage tank (1) with the import of oil slick collecting tank (2) passes through the pipeline intercommunication, the outlet of oil slick collecting tank (2) with waste water jar (4) pass through the pipeline intercommunication, the oil drain port of oil slick collecting tank (2) with sump oil jar (3) passes through the pipeline intercommunication, be equipped with the two level measurement level gauges of profit in storage tank (1).

2. The closed water cutting system for the storage tank, as recited in claim 1, further comprising a water cutting pump (5), wherein an inlet of the water cutting pump (5) is communicated with the water cutting port through a pipeline, and an outlet of the water cutting pump (5) is communicated with an inlet of the floating oil collecting tank (2) through a pipeline.

3. The closed water cutting system for the storage tank is characterized by further comprising a sewage pump (6), wherein an inlet of the sewage pump (6) is communicated with a water outlet of the floating oil collecting tank (2) through a pipeline, and an outlet of the sewage pump is communicated with the waste water tank (4) through a pipeline.

4. The closed water cutting system for the storage tank is characterized by further comprising a sump oil pump (7), wherein an inlet of the sump oil pump (7) is communicated with an oil discharge port of the floating oil collecting tank (2) through a pipeline, and an outlet of the sump oil pump (7) is communicated with the sump oil tank (3) through a pipeline.

5. The closed water cutting system for the storage tank is characterized in that a water cutting valve (8) is arranged on a pipeline communicated with a water cutting opening of the storage tank (1).

6. The closed storage tank water cutting system of claim 5, wherein the storage tanks (1) are multiple, and the storage tanks (1) are communicated with the inlet of the floating oil collecting tank (2) through a pipeline.

7. The closed water cutting system for the storage tank is characterized in that the pipeline between the storage tank (1) and the floating oil collecting tank (2) comprises a main water cutting pipeline and a plurality of branch water cutting pipelines, the plurality of storage tanks (1) are respectively communicated with the main water cutting pipeline through the branch water cutting pipelines, each branch water cutting pipeline is provided with one water cutting valve (8), and one end of the main water cutting pipeline is communicated with the inlet of the floating oil collecting tank (2).

8. The closed tank water cutting system according to claim 1, wherein the wastewater tank (4) is communicated with the water treatment device through a pipeline.

9. The closed storage tank water cutting system according to claim 1, wherein the slop oil tank (3) is communicated with a production device through a pipeline.

10. The closed tank water cutting system according to any one of claims 1 to 4 or 6 to 9, wherein all the pipes are made of stainless steel.

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