CN218115014U - Oil filling riser loading oil gas airtight collecting device and oil filling riser system - Google Patents

Abstract

The utility model relates to an oil refining, chemical industry class liquid product warehousing and transportation technique discloses an airtight collection device of oil filling riser loading oil gas and oil filling riser system. The airtight collection device of oil gas of oil filling riser loading includes gas collecting channel mechanism and telescopic machanism, and gas collecting channel mechanism includes first apron, the flexible cover body and second apron, the one end of the flexible cover body with first cover connection, the other end with second cover connection, the second apron dorsad one side of the flexible cover body is provided with the sealing member that is used for airtight jar mouth, be provided with the first through-hole that supplies the oil filling riser to pass on the first apron, be provided with the confession on the second apron the second through-hole that the oil filling riser passed and can with the oil filling riser with the connecting piece of second apron linkage, telescopic machanism's stiff end with first apron fixed connection, flexible end with the second apron is articulated. The collecting device can ensure that the tank opening is always in a good sealing state, reduce oil loss and reduce environmental pollution.

Description

Oil filling riser loading oil gas airtight collecting device and oil filling riser system

Technical Field

The utility model relates to an oil refining, chemical industry class liquid product warehousing and transportation technique specifically relates to an airtight collection device of oil filling riser loading oil gas. Furthermore, the utility model discloses still relate to the oil filling riser system who contains this oil filling riser loading airtight collection device of oil gas.

Background

At present, the railway tank car oil loading operation, the loading of the great loading arm of more use, the ubiquitous problem of leaking of oil gas part in the operation process leads to the Volatile Organic Compounds (VOCs) inorganization of operation scene to discharge and exceeds standard, not only can cause the loss of oil, can lead to all ring edge border environmental pollution moreover, is unfavorable for the healthy of worker.

When a large oil filling riser light oil seal car is adopted in the large oil filling riser oil filling operation of a railway tank car, the currently adopted sealing structure mainly has two forms, one belongs to a gravity type, and the other belongs to a partial balance type. The gravity type sealing structure depends on the gravity of the sealing cover and the action of the plane sealing gasket to realize the sealing action in the loading process, but the gravity action of the self-weight of the sealing cover on the sealing gasket is insufficient, so that the elastic deformation of the sealing gasket is insufficient, the sealing gasket is not aligned relative to the tank opening, the sealing cover is easy to damage and the like, the tank opening is not tightly sealed and oil gas is leaked in the loading process, and in addition, the sealing requirement of sinking of a vehicle body in the loading process cannot be met; the bearing capacity seal cover body of part balanced type seal structure foundation crane pipe need take light-duty design, considers that the equalizer receives the material intensity restriction, can not design into the form of complete balance type or overbalance type, and airtight lid risees along with the interior gas pressure of tank car at the loading in-process, and the pressure of sealed lid rubber pad to tank mouth department will reduce, at first can lead to sealed defect department to appear leaking, and secondly can make the sealed effect variation of tank mouth department and lead to losing efficacy.

Therefore, the oil-gas airtight collecting device for loading the loading arm needs to be designed, so that the sealing performance can be kept in the oil loading process, and oil-gas leakage is avoided.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problem that an airtight collection device of oil filling riser loading oil gas and oil filling riser system are provided, this airtight collection device of oil filling riser loading oil gas can guarantee that the jar mouth is in good encapsulated situation all the time, and reduces the oil loss, reduces environmental pollution.

The utility model discloses secondly the problem that will solve provides a crane pipe system, and this crane pipe system can guarantee that the jar mouth is in good encapsulated situation all the time, and reduces the oil loss, reduces environmental pollution.

In order to realize the above object, the utility model provides a loading arm loading oil gas airtight collection device is provided in the first aspect, including gas collecting channel mechanism and telescopic machanism, gas collecting channel mechanism includes first apron, the telescopic cover body and second apron, the one end of the telescopic cover body with first cover connection, the other end with second cover connection, the second apron dorsad one side of the telescopic cover body is provided with the sealing member that is used for airtight jar mouth, be provided with the first through-hole that supplies the loading arm to pass on the first apron, be provided with the confession on the second apron the second through-hole that the loading arm passed and can with the loading arm with the connecting piece of second apron linkage, telescopic machanism's stiff end with first apron fixed connection, flexible end with the second apron is articulated.

Preferably, the telescopic mechanism comprises at least one telescopic cylinder, the outer wall of the telescopic cylinder is fixedly connected with the first cover plate, and the extending end of the piston rod is hinged with the second cover plate.

More preferably, the telescopic cylinder is provided in plurality and evenly distributed on the periphery of the telescopic cover body.

As a preferable structure, the connecting member is configured as a joint bearing and is located at the second through hole on the second cover plate.

Preferably, an air outlet and a pressure relief mechanism are arranged on the first cover plate, and the air outlet and the pressure relief mechanism are respectively communicated with the telescopic cover body.

More preferably, the pressure relief mechanism comprises a pressure sensor arranged on the first cover plate, a pressure relief pipe connected with the first cover plate, a pressure relief valve and a fire relief valve, and the pressure relief valve and the fire relief valve are arranged on the pressure relief pipe.

Further preferably, the exhaust port is in an arc-shaped hole structure.

Specifically, the telescopic cover body is an integral corrugated cloth-clamping hose.

Typically, the sealing member is the sealed pad that is tire shape, the second apron dorsad one side of the flexible cover body is provided with the sealing member installation department, the sealing member is installed on the sealing member installation department so that the sealing member with the second apron is connected and is formed the sealed gasbag that is tire structure.

The utility model discloses the second aspect provides a crane pipe system, including crane pipe and the airtight collection device of aforementioned crane pipe loading oil gas, the crane pipe inserts first through-hole with in the second through-hole, the crane pipe with the second apron passes through the connecting piece linkage is connected.

Through the technical scheme, the utility model provides an airtight collection device of oil filling riser loading oil gas, it is articulated with telescopic machanism's flexible end and second apron to eliminate the second apron and to telescopic machanism's radial force effect, utilize the connecting piece to form the loose connection with the linkage of oil filling riser and second apron when using, in order to eliminate the second apron and to act on the radial force of oil filling riser, make the sealing member can accurately be adjusted well with jar mouth, and then and can form the seal structure of forcing to compress tightly between the jar mouth, it is sealed effectual. When being applied to tank car liquid loading operation, along with the increase of the oil mass in the tank car, a small amount of downward movements can appear in the jar body, the second apron descends along with the tank car, telescopic machanism continues to drive the second apron and pushes down to force to compress tightly the sealing member in order to keep sufficient pressurized deformation volume, keep the pressure to tank opening department, guarantee that the sealing member is in good encapsulated situation all the time, and then can reduce the loss of oil, reduce environmental pollution, and this collection device's simple structure, the small investment, it is fast to take effect, wide market prospect has.

In the preferred embodiment of the present invention, a sealing air bag in a tire structure is formed between the sealing member and the second cover plate, so that the larger the external pressure of the sealing member is, the better the sealing effect is; the arrangement of the pressure relief mechanism on the first cover plate can open the pressure relief valve in time to relieve pressure and stop oil charging operation when the pressure of oil gas in the collecting device exceeds a safety limit value, and the fire relief valve can be isolated to prevent oil gas in the recovery device from being ignited, so that the operation safety of the sealed recovery device is jointly ensured; the pressure sensor on the first cover plate is arranged, so that when the pressure sensor detects that the pressure of the oil gas in the collecting device exceeds the upper limit requirement of the set limit value, the pressure sensor works to stop oil filling operation, and when the pressure is reduced to the lower limit of the set limit value, the oil filling operation is restarted.

Other technical features and advantages of the present invention will be further described in the following detailed description.

Drawings

Fig. 1 is a front view of an embodiment of the closed oil-gas collecting device for loading crane pipes of the present invention;

fig. 2 is a top view of the loading arm oil and gas airtight collecting device shown in fig. 1.

Description of the reference numerals

1 telescopic cylinder 2 exhaust port

3 crane pipe 4 pressure sensor

5 fire relief valve 6 relief valve

7 first cover plate 8 telescopic cover body

9 second cover plate 10 seal

11 connecting piece

Detailed Description

The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings. It is to be understood that the description of the embodiments herein is for purposes of illustration and explanation only and is not intended to limit the invention.

It should be noted that, in the following description, for clearly explaining the technical solution of the present invention, some orientation words, such as the orientation or position relation indicated by "up and down" are based on the orientation or position relation of the crane-loading oil-gas airtight collecting device of the present invention when it is normally installed and used, "up" refers to the orientation of the first cover plate 7 after the crane-loading oil-gas airtight collecting device is installed, and "down" refers to the orientation of the second cover plate 9 after the crane-loading oil-gas airtight collecting device is installed. The terminology used is for the purpose of describing the invention only and is for the purpose of simplifying the description based on the directions or positional relationships illustrated in the drawings, and is not intended to indicate or imply that the device or structure referred to must have a particular orientation, be constructed and operated in a particular orientation, and is therefore not to be construed as limiting the invention.

In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "disposed," "connected," and "mounted" are to be construed broadly, e.g., the connection may be a fixed connection, a detachable connection, or an integral connection; they may be directly connected or indirectly connected through intervening media, or may be interconnected between two elements or may be in an interactive relationship between the two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art. Furthermore, the terms "first", "second" and "first" 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, therefore, the features defined "first" and "second" may explicitly or implicitly include one or more of the features described.

The utility model discloses the airtight collection device of oil filling riser loading oil gas that the first aspect provided, see fig. 1 and fig. 2, including gas collecting channel mechanism and telescopic machanism, gas collecting channel mechanism includes first apron 7, the telescopic cover body 8 and second apron 9, the one end and the first apron 7 of the telescopic cover body 8 are connected, the other end is connected with second apron 9, one side of the second apron 9 flexible cover body 8 dorsad is provided with the sealing member 10 that is used for airtight jar mouth, be provided with the first through-hole that supplies oil filling riser 3 to pass on the first apron 7, be provided with the second through-hole that supplies oil filling riser 3 to pass on the second apron 9 and can be with the connecting piece 11 of oil filling riser 3 with the linkage of second apron 9, telescopic machanism's stiff end and first apron 7 fixed connection, flexible end is articulated with second apron 9.

The utility model discloses in, the airtight collection device of oil filling riser loading oil gas can be applied to the tank car liquid loading link of each big smelting enterprise tank wagon transportation or the liquid loading link of other liquid storage facilities, and general cooperation oil filling riser 3 and its operating system use, and first apron 7, the flexible cover body 8 and second apron 9 are connected in order to form the gas collecting channel that is used for collecting oil gas. It should be noted that the tank opening sealed by the sealing member 10 refers to an inlet on a tank car or other liquid storage equipment for loading the loading arm 3 with liquid; the telescopic mechanism is arranged for driving the second cover plate 9 to forcedly press the sealing piece 10 to seal the tank opening of the tank car through the pressure generated when the telescopic mechanism is stretched, and a controller and power equipment for controlling the stretching or shortening of the telescopic mechanism can be correspondingly arranged; after the loading arm 3 is inserted into the first through hole and the second through hole, the first through hole and the loading arm 3 are directly connected in a sealing mode or indirectly connected in a sealing mode, for example, the first through hole and a supporting piece of the loading arm 3 are connected in a sealing mode; oil gas in the tank car enters the telescopic cover body 8 through a connecting piece 11 connected with the second cover plate 9.

In order to explain better the utility model provides a sealed collection device's of oil filling riser loading oil gas working process, following combine this sealed collection device of oil filling riser loading oil gas to carry out detailed introduction and explanation when being applied to tank car liquid loading operation, at this moment, the sealed collection device cooperation oil filling riser 3 of oil filling riser loading oil gas and function system use, insert first through-hole and second through-hole with oil filling riser 3 before the use in for the support piece and the first through-hole sealing connection of oil filling riser 3, with oil filling riser 3 through connecting piece 11 and the linkage of second apron 9 and be connected. When the oil filling operation is started, the oil filling pipe 3 moves downwards, the second cover plate 9 and the telescopic cover body 8 move downwards along with the downward movement until the sealing element 10 presses the tank opening of the tank car, the sealing element 10 deforms under the action of the gravity of the second cover plate 9 and the telescopic cover body 8 to form tank opening sealing, meanwhile, the telescopic mechanism applies downward pressure to the second cover plate 9 through the self extension of the telescopic mechanism to drive the second cover plate 9 to forcibly press the sealing element 10 to deform again, the sealing of the tank opening is enhanced, and the sealing effect is ensured; after the oil filling operation is carried out for a period of time, the tank body slightly moves downwards along with the increase of the oil amount in the tank car, the second cover plate 9 descends along with the tank body, the telescopic mechanism continuously applies downward pressure to the second cover plate 9 through the self extension of the telescopic mechanism to drive the second cover plate 9 to forcibly compress the sealing element 10, so that the sealing element 10 keeps enough compression deformation, the sealing element 10 is ensured to be always in a good sealing state, and oil gas enters the telescopic cover body 8 through the connecting piece 11 to be collected; after the oil loading operation is stopped, the telescopic mechanism retracts, the oil filling riser 3 moves upwards, and the second cover plate 9 and the telescopic cover body 8 are driven to move upwards to an initial state.

The utility model provides an in the airtight collection device use of oil filling riser loading oil gas, telescopic machanism's flexible end is lapped 9 articulatedly with the second, in order to eliminate the second and lap 9 radial force effects to telescopic machanism, utilize connecting piece 11 to lap 9 linkages with the oil filling riser 3 with the second and form loose the connection when using, in order to eliminate the radial force effect of second apron 9 to oil filling riser 3, make sealing member 10 can accurately be adjusted well with jar mouth, and then and form the seal structure of forcing to compress tightly between the jar mouth, it is sealed effectual. When being applied to tank car liquid loading operation, along with the increase of the tank car built-in oil mass, a small amount of can appear moving down in the jar body, and second apron 9 descends along with the tank car, and telescopic machanism continues to drive second apron 9 and pushes down to force to compress tightly sealing member 10 in order to keep sufficient pressurized deformation volume, guarantee that sealing member 10 forms continuous, stable sealing pressure to the jar mouth, make the jar mouth be in good encapsulated situation all the time, and then can reduce the loss of oil, reduce environmental pollution.

The utility model discloses in, telescopic machanism can adopt by the flexible connecting rod of motor drive, also can adopt telescopic cylinder. As a preferred embodiment of the middle telescopic mechanism, the telescopic mechanism comprises at least one telescopic cylinder 1, and the outer wall of the telescopic cylinder 1 is hinged with the second cover plate 9 through the extending end of the first cover plate 7, the piston rod and the like. Be provided with the piston rod in telescopic cylinder 1's the cylinder body, through the motion of stretching out or retracting of piston rod, control telescopic cylinder 1 is to the driving action of second apron 9, and then realizes compressing tightly the compulsory of sealing member 10, promotes sealing effect and the seal stability of sealing member 10 to jar mouth.

The utility model discloses in, under the preferred condition, telescopic cylinder 1 can set up to one or more, and telescopic cylinder 1 sets up according to telescopic cylinder 1's different quantity with the hookup location of first apron 7 and second apron 9 to can exert the effect that compresses tightly to the forcing of sealing member 10. Under the preferred condition, telescopic cylinder 1 sets up to a plurality ofly, and evenly distributed is in telescopic cover body 8's periphery to make a plurality of telescopic cylinder 1 comparatively even to the drive power distribution of second apron 9, and then make sealing member 10 high to the pressure degree of consistency of jar mouth department, sealed effect is better.

The utility model discloses in, connecting piece 11 can make oil filling riser 3 and 9 linkages of second apron through articulated mode. As a preferred embodiment of the middle connecting member 11 of the present invention, the connecting member 11 is provided as a joint bearing and is located at the second through hole of the second cover plate 9. Specifically, the outer ring of the knuckle bearing can be fixed at the second through hole on the second cover plate 9, and the oil filling riser 3 is inserted into the inner ring of the knuckle bearing, so as to realize the loose connection between the oil filling riser 3 and the second cover plate 9. Preferably, the knuckle bearing is made of metal materials, such as a copper knuckle bearing, so that the pressure bearing capacity of the knuckle bearing is high, static electricity generated in the working process is avoided, and the use is safer and more reliable.

As the utility model discloses in a preferred embodiment of first apron 7, be provided with gas vent 2 and pressure release mechanism on the first apron 7, gas vent 2 and pressure release mechanism communicate with the flexible cover body 8 respectively. Be connected with oil gas recovery's equipment through gas vent 2 to carry out recovery processing with the oil gas of collecting in the telescopic cover body 8, reduce the pressure in the telescopic cover body 8. Preferably, referring to fig. 2, the exhaust port 2 is an arc-shaped hole structure similar to a shape of a partial circular ring, so that a large flow area can be realized in a narrow structural space, the requirement of oil gas flux is met, the emission of the VOCs in the working environment is reduced, and the pressure in the telescopic cover body 8 is reduced.

The utility model discloses in, pressure release mechanism on the first apron 7 can carry out in time the pressure release when the oil gas pressure in the flexible cover body 8 surpasses the safety limit value to guarantee the airtight collection device's of oil filling riser loading oil gas safe operation. As the utility model discloses a preferred embodiment of well pressure relief mechanism, pressure relief mechanism are including setting up pressure sensor 4 on first apron 7, the pressure release pipe of being connected with first apron 7, relief valve 6 and back-fire relief valve 5, and relief valve 6 and back-fire relief valve 5 all set up on the pressure release pipe. It can be understood that when the pressure of the oil gas in the telescopic cover body 8 exceeds a safety limit (the safety limit can be monitored by the pressure sensor 4 or by an additional pressure testing device), the controller of the pressure release valve 6 controls the pressure release valve 6 to be opened in time, the controller of the fire retardant valve 5 controls the fire retardant valve 5 to be opened to block the oil gas in the telescopic cover body 8 from being ignited, and the safety of the operation of the oil gas closed collecting device for loading the oil filling riser on a truck is ensured; when the pressure release valve 6 reduces the pressure in the telescopic cover body 8 to the safety limit value, the pressure release valve 6 and the fire relief valve 5 are closed.

The utility model discloses in, pressure sensor 4 is connected with the controller electricity that control oil filling riser 3 carried out the oil filling operation to make when pressure sensor 4 detects the interior oil gas pressure of the flexible cover body 8 and surpasss the limit value upper limit of setting for, when control relief valve 6 was opened, oil filling riser 3 of controller control of oil filling riser 3 stopped the oil filling operation, treat that the interior pressure of the flexible cover body 8 reduces the limit value lower limit of setting for when, oil filling operation is restarted to controller control oil filling riser 3, further improve this collection device's safety in utilization.

In the utility model, the telescopic cover body 8 can be a gas collecting hood with a telescopic structure, and also can be a gas collecting hood made of a telescopic or elastic material. As the utility model discloses a preferred embodiment of well telescopic cover body 8, telescopic cover body 8 is integral ripple clamp cloth hose, can resistant oily fire prevention, improves this recovery unit's security.

In the present invention, the sealing member 10 may be a sealing ring or a sealing pad made of elastic material. As a preferred embodiment of the middle sealing member 10 of the present invention, the sealing member 10 is a sealing pad in a tire shape, one side of the second cover plate 9 facing away from the telescopic cover body 8 is provided with a sealing member mounting portion, and the sealing member 10 is mounted on the sealing member mounting portion so that the sealing member 10 is connected with the second cover plate 9 to form a sealing air bag in a tire structure. The sealing element 10 and the second cover plate 9 adopt a tire type mounting structure, so that the sealing effect on the tank opening is better when the external pressure of the sealing element 10 is higher.

Based on the airtight collection device of oil filling riser loading oil gas that the above-mentioned provided, the utility model discloses the oil filling riser system that the second aspect provided, including oil filling riser 3 and the airtight collection device of aforementioned oil filling riser loading oil gas, in oil filling riser 3 inserted first through-hole and second through-hole, oil filling riser 3 and second apron 9 passed through connecting piece 11 linkage connection.

It should be noted that the crane pipe system can be provided with a controller or a control system required by the crane pipe system to realize the automatic operation or operation of the crane pipe 3 and the crane pipe loading oil gas closed collection device.

As a relatively preferred embodiment of the crane pipe system of the present invention, see fig. 1 and fig. 2, the crane pipe system includes a crane pipe 3 and a crane pipe loading oil-gas airtight collecting device, the crane pipe loading oil-gas airtight collecting device includes a gas collecting hood mechanism and a telescopic mechanism, the gas collecting hood mechanism includes a first cover plate 7, a telescopic hood body 8 and a second cover plate 9, one end of the telescopic hood body 8 is connected with the first cover plate 7, and the other end is connected with the second cover plate 9, one side of the second cover plate 9, which is opposite to the telescopic hood body 8, is provided with a sealing member 10 for sealing a tank opening, the first cover plate 7 is provided with a first through hole for the crane pipe 3 to pass through, the second cover plate 9 is provided with a second through hole for the crane pipe 3 to pass through, the second through hole on the second cover plate 9 is provided with a connecting member 11 capable of linking the crane pipe 3 and the second cover plate 9, and the connecting member 11 adopts a copper knuckle bearing; the telescopic mechanism comprises two telescopic cylinders 1 symmetrically arranged on the periphery of a telescopic cover body 8, the outer wall of each telescopic cylinder 1 is fixedly connected with a first cover plate 7, and the extending end of a piston rod is hinged with a second cover plate 9; an exhaust port 2 and a pressure relief mechanism which are communicated with a telescopic cover body 8 are arranged on a first cover plate 7, the exhaust port 2 is communicated with the telescopic cover body 8 and is of an arc-shaped hole structure, the pressure relief mechanism comprises a pressure sensor 4 arranged on the first cover plate 7, a pressure relief pipe which is connected with the first cover plate 7 and is communicated with the telescopic cover body 8, a pressure relief valve 6 and a fire relief valve 5, the pressure relief valve 6 and the fire relief valve 5 are both arranged on the pressure relief pipe, the pressure sensor 4 is electrically connected with a controller which controls the oil filling operation of an oil filling riser 3, the telescopic cover body 8 is an integral corrugated cloth clamping hose, a sealing element 10 is a tire-shaped sealing gasket, a sealing element mounting part is arranged on one side, back to the telescopic cover body 8, of a second cover plate 9, and the sealing element 10 is mounted on the sealing element mounting part so that the sealing element 10 is connected with the second cover plate 9 to form a sealing airbag which is of a tire structure; the oil filling riser 3 inserts in the inner circle of first through-hole, copper joint bearing in proper order, and the support piece and the first through-hole sealing connection of oil filling riser 3, oil filling riser 3 and second apron 9 are connected through 11 linkages of connecting piece.

The crane pipe system is used as follows: the initial state is that the piston rod of the telescopic cylinder 1 and the telescopic cover body 8 are both in a retraction state, the second cover plate 9 and the sealing element 10 are at upper limit positions, when oil loading operation starts, the oil filling pipe 3 moves downwards, the second cover plate 9 and the telescopic cover body 8 move downwards along with the downward movement until the sealing element 10 presses on a tank opening of a tank car, the sealing element 10 deforms under the action of the gravity of the second cover plate 9 and the telescopic cover body 8 to form tank opening sealing, meanwhile, the piston rod of the telescopic cylinder 1 extends to apply downward pressure to the second cover plate 9 to drive the second cover plate 9 to forcibly press the sealing element 10 to deform again, sealing of the tank opening is enhanced, and sealing effect is guaranteed; after the oil filling operation is carried out for a period of time, a small amount of downward movement of the tank body can occur along with the increase of the oil amount in the tank car, the second cover plate 9 descends along with the tank body, the telescopic cylinder 1 continuously applies downward pressure to the second cover plate 9 through the extension of the piston rod, the second cover plate 9 is driven to forcibly press the sealing element 10, so that the sealing element 10 is kept at a sufficient compression deformation amount, and the sealing element 10 is ensured to be always in a good sealing state; when the pressure sensor 4 detects that the pressure of the oil gas in the telescopic cover body 8 exceeds the set upper limit value, the pressure release valve 6 is controlled to be opened, the controller of the oil filling riser 3 controls the oil filling riser 3 to stop oil filling operation, when the pressure release valve 6 enables the pressure in the telescopic cover body 8 to be reduced to the set lower limit value, the oil filling riser 3 is controlled to restart the oil filling operation, and meanwhile, the pressure release valve 6 is controlled to be closed; after the oil charging operation is stopped, the piston rod of the telescopic cylinder 1 retracts, the oil filling riser 3 moves upwards, and the second cover plate 9 and the telescopic cover body 8 are driven to move upwards to an initial state.

Can see by the above description, the utility model provides a sealed collection device of oil filling riser loading oil gas, it is articulated with telescopic machanism's flexible end and second apron 9, in order to eliminate the radial force effect of second apron 9 to telescopic machanism, utilize connecting piece 11 to form loose connection with the linkage of oil filling riser 3 and second apron 9 when using, in order to eliminate the radial force effect of second apron 9 to oil filling riser 3, make sealing member 10 can accurately be adjusted well with jar mouth, and then and can form the seal structure of forcing to compress tightly between the jar mouth, it is sealed effectual. When the recovery device is applied to liquid loading operation of the tank car, a small amount of downward movement of the tank body can occur along with the increase of the oil amount in the tank car, the second cover plate 9 descends along with the tank car, and the telescopic mechanism continues to drive the second cover plate 9 to press down, so that the sealing piece 10 is forced to be pressed to keep enough compression deformation, the sealing piece 10 is guaranteed to be always in a good sealing state, the loss of oil products can be reduced, the environmental pollution is reduced, and the recovery device is simple in structure, low in investment, quick in effect and wide in market prospect.

The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited thereto. In the technical idea scope of the present invention, it is possible to provide the technical solution of the present invention with a plurality of simple modifications, including combining each specific technical feature in any suitable manner, and in order to avoid unnecessary repetition, the present invention does not provide additional description for various possible combinations. These simple variations and combinations should also be considered as disclosed in the present invention, all falling within the scope of protection of the present invention.

Claims (10)

1. The utility model provides a sealed collection device of oil gas of oil filling riser loading, its characterized in that, includes gas collecting channel mechanism and telescopic machanism, gas collecting channel mechanism includes first apron (7), the flexible cover body (8) and second apron (9), the one end of the flexible cover body (8) with first apron (7) are connected, the other end with second apron (9) are connected, second apron (9) dorsad one side of the flexible cover body (8) is provided with sealing member (10) that are used for airtight jar mouth, be provided with the first through-hole that supplies oil filling riser (3) to pass on first apron (7), be provided with the confession on second apron (9) the second through-hole that oil filling riser (3) passed and can with oil filling riser (3) with connecting piece (11) of second apron (9) linkage, telescopic machanism's stiff end with first apron (7) fixed connection, flexible end with second apron (9) are articulated.

2. The closed oil-gas collecting device for loading crane pipes according to claim 1, wherein the telescopic mechanism comprises at least one telescopic cylinder (1), the outer wall of the telescopic cylinder (1) is fixedly connected with the first cover plate (7), and the extending end of the piston rod is hinged to the second cover plate (9).

3. The oil-gas closed collecting device for loading crane pipes on a truck according to claim 2, wherein the number of the telescopic cylinders (1) is multiple, and the telescopic cylinders are uniformly distributed on the periphery of the telescopic cover body (8).

4. The oil-gas sealed collecting device for loading crane pipes on loading cranes of any one of claims 1 to 3, characterized in that the connecting piece (11) is provided as a joint bearing and is positioned at the second through hole on the second cover plate (9).

5. The oil-gas sealed collecting device for loading crane pipes on loading cranes as claimed in any one of claims 1 to 3, wherein the first cover plate (7) is provided with an exhaust port (2) and a pressure relief mechanism, and the exhaust port (2) and the pressure relief mechanism are respectively communicated with the telescopic cover body (8).

6. The oil filling riser loading oil-gas sealed collecting device according to claim 5, wherein the pressure relief mechanism comprises a pressure sensor (4) arranged on the first cover plate (7), a pressure relief pipe connected with the first cover plate (7), a pressure relief valve (6) and a fire retardant valve (5), and the pressure relief valve (6) and the fire retardant valve (5) are arranged on the pressure relief pipe.

7. The oil-gas closed collecting device for loading crane pipes as claimed in claim 5, wherein the exhaust port (2) is of an arc-shaped hole structure.

8. The oil-gas sealed collecting device for loading crane pipes according to any one of claims 1 to 3, characterized in that the telescopic cover body (8) is an integral corrugated cloth-sandwiched hose.

9. The oil-air sealing and collecting device for loading crane pipes on loading cranes as claimed in any one of claims 1 to 3, wherein the sealing element (10) is a sealing gasket in the shape of a tire, a sealing element mounting part is arranged on one side, facing away from the telescopic cover body (8), of the second cover plate (9), and the sealing element (10) is mounted on the sealing element mounting part so that the sealing element (10) and the second cover plate (9) are connected to form a sealing air bag in the shape of a tire.

10. A crane pipe system, characterized in that, including crane pipe (3) and the airtight collection device of crane pipe loading oil gas of any one of claims 1 to 9, crane pipe (3) insert first through-hole with in the second through-hole, crane pipe (3) with second apron (9) pass through connecting piece (11) linkage is connected.

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