Closed oil discharge device

Abstract

The utility model discloses a closed oil discharge device which comprises an oil storage tank, an oil discharge pump arranged on the side wall of the oil storage tank, a gas collection hopper arranged at the top of the oil storage tank, a gas delivery pipe arranged at the top of the gas collection hopper, a cooling tank arranged at the other end of the gas delivery pipe, a fan arranged on the side wall of an inner cavity of the cooling tank, a cooling pipe arranged on the inner wall of the cooling tank, and a return pipe arranged at the other end of the cooling pipe. According to the closed oil discharging device, volatile oil gas is collected through the gas collecting hopper, liquid is filtered through the oil filter and falls back into the oil storage tank, gas enters the cooling pipe from the gas conveying pipe, and the fan is turned on to drive air circulation so that the heat exchange effect of the fins can be better; and secondly, the oil discharge pipe is inserted into the oil discharge port of the oil tank truck, the fan is turned on to drive the gas to enter the oil tank truck from the gas supply pipe, the pressure intensity in the oil tank truck is balanced, and oil discharge is facilitated.

Description

Technical Field

[0001] This utility model relates to the technical field of oil unloading devices, specifically a closed oil unloading device. Background Technology

[0002] Because the distances between oil production sites in China are relatively far, and pipeline transportation is costly, most oil is transported by truck. Therefore, research on crude oil loading and unloading technology is very important. Unloading is a crucial step in crude oil transportation. Currently, traditional unloading methods include open unloading and semi-closed unloading. During the unloading process, there are problems with oil and gas volatilization, which not only cause economic losses but may also lead to deflagration.

[0003] The prior art patent document with publication number CN219906985U provides: a closed oil unloading device, including an oil unloading device, which fixes the oil delivery pipe to a fixed ring, and then lifts the fixed ring by a hydraulic rod to align the oil delivery pipe with the oil outlet on the tank truck, making it convenient for workers to connect and fix. Then, under the action of an oil unloading pump connected to an oil storage tank, crude oil is pumped into the oil storage tank. The oil delivery pipe is equipped with a flexible hose so that the oil delivery pipe can be better adjusted to follow the rise and fall of the hydraulic rod.

[0004] Although the device has many beneficial effects, it still has the following problems: During the use of the device, crude oil evaporates, causing waste and posing a risk; secondly, the negative pressure generated after the crude oil is extracted from the tanker truck during the use of the device affects the unloading effect and needs to be improved. In view of this, we propose a closed unloading device. Utility Model Content

[0005] The purpose of this section is to outline some aspects of the embodiments of this utility model and to briefly introduce some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be used to limit the scope of this utility model.

[0006] 1. Technical problems to be solved:

[0007] In order to solve the problems mentioned above, such as waste caused by crude oil evaporation and potential danger, and negative pressure generated inside the oil tanker after crude oil is extracted, which affects the oil unloading effect, this utility model is proposed.

[0008] Therefore, the purpose of this utility model is to provide a closed oil unloading device that facilitates the recovery of volatile gaseous crude oil, avoids waste, improves safety, facilitates the balance of internal pressure of oil tankers, and makes oil unloading convenient.

[0009] 2. Technical Solution:

[0010] To solve the above-mentioned technical problems, according to one aspect of the present invention, the present invention provides the following technical solution:

[0011] A closed oil unloading device includes an oil storage tank, an oil unloading pump mounted on the side wall of the oil storage tank, a recovery assembly mounted on the top of the oil storage tank, the recovery assembly including a gas collecting hopper, a gas supply pipe mounted on the top of the gas collecting hopper, an oil filter mounted on the inner circumference of the gas supply pipe, a cooling box mounted at the other end of the gas supply pipe, a fan mounted on the side wall of the inner cavity of the cooling box, a cooling pipe mounted on the inner wall of the cooling box, multiple fins mounted on the outer circumference of the cooling pipe, a return pipe mounted at the other end of the cooling pipe, a flexible hose mounted on the side wall of the oil storage tank, and an oil unloading assembly mounted at the other end of the flexible hose. The oil unloading pump and the fan are electrically connected to an external power source.

[0012] As a preferred embodiment of the sealed oil unloading device of this utility model, the oil unloading assembly includes an oil unloading pipe, a flange ring is provided on the outer circumference of the oil unloading pipe, a fan is provided on the top of the outer circumference of the oil unloading pipe, an air supply pipe is provided at the output end of the fan, and a one-way valve is provided on the outer circumference of the air supply pipe.

[0013] In a preferred embodiment of the sealed oil unloading device of this utility model, the cooling pipe is arranged in an S-shaped circulation configuration, and the fins are made of aluminum alloy.

[0014] In a preferred embodiment of the sealed oil unloading device of this utility model, the position of one end of the cold pipe matches the position of the other end of the gas transmission pipe, and the other end of the return pipe penetrates through the top of the oil storage tank.

[0015] As a preferred embodiment of the sealed oil unloading device of this utility model, the cooling box side wall is provided with a box door, the box door side wall is provided with a vent hole, and the four corners of the box door side wall are threaded with bolts.

[0016] In a preferred embodiment of the sealed oil unloading device of this utility model, the air supply pipe penetrates the outer circumference of the oil unloading pipe, and the other end of the air supply pipe extends beyond the end of the oil unloading pipe.

[0017] In a preferred embodiment of the sealed oil unloading device of this utility model, the flange ring sidewall is provided with a sealing ring, and the sealing ring is made of neoprene rubber.

[0018] 3. Beneficial effects:

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] This type of closed oil unloading device collects the volatile oil vapors through a gas collecting hopper, filters the liquid through an oil filter and returns it to the inside of the oil storage tank, and the gas enters the cooling pipe from the gas delivery pipe. Turning on the fan drives the air circulation to facilitate better heat exchange of the fins, and the gas inside the cooling pipe is more fully condensed into liquid, which facilitates the recovery of the volatile gaseous crude oil, avoids waste, and improves safety.

[0021] This type of closed oil unloading device inserts the oil unloading pipe into the oil tanker's unloading port, improves the connection stability through a flange ring, and drives gas from the air supply pipe into the oil tanker by turning on the fan, which helps to balance the internal pressure of the oil tanker and facilitates oil unloading. A one-way valve prevents crude oil from entering the air supply pipe. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0023] Figure 1 This is a schematic diagram of the overall structure of a closed oil unloading device according to the present invention;

[0024] Figure 2 This is a structural breakdown diagram of the recovery component of a closed oil unloading device according to the present invention;

[0025] Figure 3 This is a schematic diagram showing the disassembled structure of the cooling box door of a sealed oil unloading device according to this utility model;

[0026] Figure 4 This is a cross-sectional schematic diagram of the gas collecting hopper structure of a closed oil unloading device according to the present invention;

[0027] Figure 5 This is a schematic diagram of the oil unloading component structure of a closed oil unloading device according to the present invention.

[0028] The following are the labels in the diagram: 1. Oil storage tank; 2. Oil unloading pump; 3. Recovery assembly; 4. Hospital; 5. Oil unloading assembly; 301. Air collection hopper; 302. Air supply pipe; 303. Oil filter; 304. Cooling box; 305. Fan; 306. Cooling pipe; 307. Fin; 308. Return pipe; 309. Box door; 310. Vent hole; 311. Bolt; 501. Oil unloading pipe; 502. Flange ring; 503. Blower; 504. Air supply pipe; 505. Check valve; 506. Sealing ring. Detailed Implementation

[0029] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0030] This utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not be construed as limiting the scope of protection of this utility model. In actual manufacturing, the three-dimensional spatial dimensions of length, width, and depth should be included.

[0031] The orientation or positional relationship indicated in the terminology is based on the orientation or positional relationship shown in the accompanying drawings and is only for the convenience of describing the present invention and simplifying the description. It is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0032] The term "connection method" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0033] The embodiments of this utility model will now be described in further detail with reference to the accompanying drawings.

[0034] This utility model provides an overall structural schematic diagram of an embodiment of a closed oil unloading device, including:

[0035] Please see Figures 1-5This embodiment of a closed oil unloading device includes an oil storage tank 1. An oil unloading pump 2 is fixedly mounted on the side wall of the oil storage tank 1. A recovery assembly 3 is fixedly mounted on the top of the oil storage tank 1. The recovery assembly 3 includes a gas collecting hopper 301. A gas supply pipe 302 is welded to the top of the gas collecting hopper 301. An oil filter 303 is fixedly mounted on the inner circumference of the gas supply pipe 302. A cooling box 304 is fixedly mounted at the other end of the gas supply pipe 302. A fan 305 is threadedly connected to the inner side wall of the cooling box 304. A cooling pipe 306 is fixedly mounted on the inner wall of the cooling box 304. Multiple fins 307 are welded to the outer circumference of the cooling pipe 306. A return pipe 308 is fixed at the other end, and a hose 4 is fixed on the side wall of the oil storage tank 1. An oil unloading assembly 5 is fixed at the other end of the hose 4. The oil unloading pump 2 and the fan 305 are electrically connected to an external power source. The volatile oil vapor is collected through the gas collecting hopper 301, and the liquid is filtered and returned to the inside of the oil storage tank 1 through the oil filter 303. The gas enters the cold pipe 306 from the gas supply pipe 302. The fan 305 is turned on to drive air circulation, which facilitates better heat exchange of the fins 307. The gas inside the cold pipe 306 is more fully condensed into liquid, which facilitates the recovery of volatile gaseous crude oil, avoids waste, and improves safety.

[0036] It is worth noting that, in order to prevent the cooling box 304 from rotating, the oil unloading assembly 5 specifically includes an oil unloading pipe 501. A flange ring 502 is welded to the outer circumference of the oil unloading pipe 501. A fan 503 is fixed to the top of the outer circumference of the oil unloading pipe 501. An air supply pipe 504 is fixed to the output end of the fan 503. A one-way valve 505 is fixed to the outer circumference of the air supply pipe 504. By inserting the oil unloading pipe 501 into the oil tanker's unloading port, the flange ring 502 improves the connection stability. By turning on the fan 503, gas is driven from the air supply pipe 504 into the oil tanker, which helps to balance the pressure inside the oil tanker and facilitates oil unloading. The one-way valve 505 prevents crude oil from entering the air supply pipe 504.

[0037] Next, in order to improve the oil and gas recovery effect, the cold pipe 306 is arranged in an S-shaped circulation configuration, and the fins 307 are made of aluminum alloy. The S-shaped circulation configuration of the cold pipe 306 increases the residence time of oil and gas, resulting in better condensation and recovery. The aluminum alloy fins 307 save costs.

[0038] Meanwhile, to facilitate oil and gas recovery, specifically, the position of one end of the cold pipe 306 matches the position of the other end of the gas transmission pipe 302, and the other end of the return pipe 308 penetrates through the top of the oil storage tank 1. Through the return pipe 308 penetrating the top of the oil storage tank 1, it is convenient for the condensed and recovered crude oil to re-enter the oil storage tank 1.

[0039] Furthermore, in order to improve the heat exchange effect, specifically, the side wall of the cooling box 304 is threaded with a box door 309, the side wall of the box door 309 is provided with a vent hole 310, and the four corners of the side wall of the box door 309 are threaded with bolts 311. The vent hole 310 facilitates air circulation and heat exchange, and the bolts 311 facilitate the disassembly and assembly of the box door 309, thereby facilitating the maintenance of the interior of the cooling box 304.

[0040] It is worth noting that, in order to avoid a reduction in sealing performance, specifically, the air supply pipe 504 penetrates the outer circumference of the unloading pipe 501, and the other end of the air supply pipe 504 extends beyond the end of the unloading pipe 501. By passing through the outer circumference of the unloading pipe 501, the air supply pipe 504 can be easily installed together with the air supply pipe 504 at the unloading position of the oil tanker, which facilitates sealing.

[0041] Finally, to prevent crude oil leakage, a sealing ring 506 is fixed to the side wall of the flange ring 502. The sealing ring 506 is made of chloroprene rubber, which is made by α-polymerization of chloroprene as the main raw material. It has good physical and mechanical properties, and is resistant to heat, oil, acids and alkalis, and sunlight. The sealing performance is improved by the chloroprene rubber sealing ring 506.

[0042] In addition, the circuits, electronic components, and modules involved in this utility model are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. Furthermore, the scope of protection of this utility model does not involve improvements to the internal structure and methods.

[0043] The device or equipment models mentioned in this article may be as follows:

[0044] Oil unloading pump 2: 65Y-60B;

[0045] Fan 305: DE07020B12U-FAR;

[0046] Fan 503: 4-72-5 / A.

[0047] Combination Figures 1-5 The specific usage process of the closed oil unloading device of this embodiment is as follows:

[0048] 1: According to actual use, after the oil vapor inside the oil tank 1 evaporates into a gaseous state, it rises into the gas collecting hopper 301. The oil filter 303 filters and separates the gas and liquid. The gas enters the cooling pipe 306 from the gas supply pipe 302. The fan 305 is started to drive the air circulation to dissipate heat from the fins 307. After the gas inside the cooling pipe 306 condenses into liquid, it re-enters the oil tank 1 from the return pipe 308.

[0049] 2: Insert the unloading pipe 501 into the unloading port of the oil tanker, start the blower 503 to drive the gas from the air supply pipe 504 into the inside of the oil tanker, balance the pressure inside the oil tanker during unloading, and install a one-way valve 505 on the outer circumference of the air supply pipe 504.

[0050] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A closed oil unloading device, characterized in that, The oil storage tank (1) is characterized in that: an oil unloading pump (2) is provided on the side wall of the oil storage tank (1), a recovery assembly (3) is provided on the top of the oil storage tank (1), the recovery assembly (3) includes a gas collecting hopper (301), a gas supply pipe (302) is provided on the top of the gas collecting hopper (301), an oil filter (303) is provided on the inner circumference of the gas supply pipe (302), and a cooling box (304) is provided at the other end of the gas supply pipe (302). 304) A fan (305) is provided on the inner side wall of the cavity. A cold pipe (306) is provided on the inner wall of the cooling box (304). Multiple fins (307) are provided on the outer circumference of the cold pipe (306). A return pipe (308) is provided at the other end of the cold pipe (306). A hose (4) is provided on the side wall of the oil storage tank (1). An oil unloading assembly (5) is provided at the other end of the hose (4). The oil unloading pump (2) and the fan (305) are electrically connected to an external power source.

2. The closed oil unloading device according to claim 1, characterized in that, The oil unloading assembly (5) includes an oil unloading pipe (501), a flange ring (502) is provided on the outer circumference of the oil unloading pipe (501), a blower (503) is provided on the top of the outer circumference of the oil unloading pipe (501), an air supply pipe (504) is provided at the output end of the blower (503), and a one-way valve (505) is provided on the outer circumference of the air supply pipe (504).

3. The closed oil unloading device according to claim 2, characterized in that, The cooling pipe (306) is arranged in an S-shaped loop, and the fins (307) are made of aluminum alloy.

4. The closed oil unloading device according to claim 3, characterized in that, The position of one end of the cold pipe (306) matches the position of the other end of the gas transmission pipe (302), and the other end of the return pipe (308) passes through the top of the oil storage tank (1).

5. The closed oil unloading device according to claim 4, characterized in that, The cooling box (304) has a door (309) on its side wall, and a vent hole (310) is opened on the side wall of the door (309). Bolts (311) are threadedly connected to the four corners of the side wall of the door (309).

6. The closed oil unloading device according to claim 5, characterized in that, The air supply pipe (504) penetrates the outer circumference of the oil unloading pipe (501), and the other end of the air supply pipe (504) extends beyond the end of the oil unloading pipe (501).

7. The closed oil unloading device according to claim 6, characterized in that, The flange ring (502) has a sealing ring (506) on its side wall, and the sealing ring (506) is made of neoprene rubber.

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