KR20220068529A - Chemical Transfer System between Chemical Tank Lorry and Chemical Storage Tank - Google Patents

Abstract

The present invention relates to a system for transferring a chemical between a chemical tank truck and a chemical storage tank. According to the present invention, the system comprises: a connector fluidly connected to the inside of a tank of a chemical tank truck and fixed to an upper portion of the tank of the chemical tank truck to be exposed; and a corresponding connector having a shape corresponding to the connector, fluidly connected to the chemical storage tank, and provided to be lifted while being exposed to a bottom surface of a structure having a height at which a chemical tank truck can be located thereunder. When the chemical tank truck is located at a predetermined position below the structure, the corresponding connector is lowered to be coupled to the connector to transfer a chemical. Therefore, the present invention has the effect of fundamentally preventing an operator from being exposed to a chemical by fully automating the entire process of fluid connection between a tank truck and a storage tank, chemical transfer, and disconnection.

Description

Chemical Transfer System between Chemical Tank Lorry and Chemical Storage Tank

The present invention relates to a chemical transport system between a chemical storage tank installed in a chemical plant or a semiconductor plant and a tank lorry as a chemical transport means.

In general, a chemical storage tank is installed in a factory that uses or supplies a large amount of chemicals, such as a semiconductor factory or a chemical factory, etc. A tank lorry is used for transport to That is, chemical transport is required between the chemical storage tank and the chemical tank lorry, and for the transport of these chemicals, the combination between the chemical storage tank (hereinafter, also referred to as a storage tank for short) and a chemical tank lorry (hereinafter, also referred to as a tank lorry for short) connection) is essential.

Typically, the coupling between the storage tank and the tank lorry is ACQC (Automatic Clean Quick Coupler) having a hose having one end connected to the tank lorry and a connector coupled to the other end, one end connected to the storage tank and the other end having a corresponding connector corresponding to the connector. ) by connecting to a unit called a unit (see Patent Document 1), it is made in a way that combines the storage tank and the tank lorry (fluid connection). However, chemicals used in semiconductor factories or chemical factories, etc. are harmful or toxic to the human body or the environment, and there is a risk of accidents such as fire or explosion when leaked, so it requires considerable attention in handling.

Accordingly, Patent Documents 2 and 3 disclose a system (device) for automatically connecting a hose of a tank lorry to an ACQC unit. In the automatic connection device disclosed in Patent Documents 2 and 3, in common, when the operator mounts the hose on a cradle provided at one end of the automatic connection device, the hose transfer means of the automatic connection device moves the hose toward the ACQC unit provided at the other end of the automatic connection device. It is configured to be connected by horizontal transport.

By using such an automatic connection device, the exposure of the operator to the process of combining the storage tank and the tank lorry is reduced and the risk of accidents is reduced by automating the connection work, but the installation and removal of the hose is still performed manually by the operator This is being requested.

Patent Document 1: Public Utility Model Publication No. 1999-0036616 Patent Document 2: Registered Patent Publication No. 10-1572537 Patent Document 3: Registered Patent Publication No. 10-1776625

The present invention has been made in view of this situation, and it is an object of the present invention to provide a chemical transport system between a chemical storage tank and a chemical tank lorry that is fully automated without exposing an operator to the bonding process between the chemical storage tank and the chemical tank lorry.

The system according to the present invention for achieving the above object is a system for transferring chemicals between a chemical tank lorry and a chemical storage tank, fluidly connected with the inside of the tank of the chemical tank lorry, and fixed so as to be exposed to the upper part of the tank of the chemical tank lorry old connector; and a corresponding connector having a shape corresponding to the connector, fluidly connected to the chemical storage tank, exposed to the bottom surface of a structure having a height under which the chemical tank lorry can be located, and provided to be lifted, the chemical When the tank lorry is located at a predetermined position below the structure, the corresponding connector is lowered to be coupled to the connector and the chemical is transferred.

Here, the corresponding connector may be movable in vertical and horizontal directions, may be rotatable within a predetermined angular range about a vertical central axis, and may be tiltable within a predetermined angular range with respect to the vertical central axis.

In addition, a sensor for detecting the position of the connector is provided on the structure side, and the corresponding connector may be movable in the horizontal direction to the position of the connector sensed by the sensor.

In addition, when the connector is not in use, the connector cover for shielding at least the front end of the connector so as not to be exposed to the outside; and a corresponding connector cover for shielding the corresponding connector from being exposed to the outside of the structure when the corresponding connector is not in use.

In this case, the connector cover and/or the corresponding connector cover may be configured as a sliding door capable of opening and closing a space in which the connector and/or the corresponding connector is provided.

In addition, in this case, the connector cover is made of a cap fastened to the exposed tip of the connector, and the system is provided so as to be able to access or separate from the cap and to be exposed on the bottom surface of the structure, and the cap can be gripped It may further include a connector cap detachable unit having an arm.

In addition, when the connector and the corresponding connector are coupled to each other, it may further include a blocking unit to surround the periphery of the connector and the corresponding connector to block outside air.

In this case, the blocking portion is formed in the form of a barrel with an open bottom, and the corresponding connector is installed surrounded by the blocking portion inside the blocking portion and further includes a lifting unit for lifting and lowering the blocking portion toward the connector, By lowering the blocking portion together with the corresponding connector by the lifting unit, the blocking portion may be configured to surround the connector and the corresponding connector together to block the outside air.

In addition, in this case, a depression is formed in the upper portion of the tank of the chemical tank lorry to be inserted by the blocking part descending, and the connector may be installed in the depression.

In addition, in this case, a fixing groove is formed on the outer surface of the side wall of the blocking part, and a retractable fixing member is provided on the inner wall of the recessed part. It can be fixed so that the blocking part does not rise by being inserted into the.

In addition, a unique code according to the type of chemical is provided on the side of the chemical tank lorry, and a code reading means capable of reading the code is provided on the structure side, so that the code read by the code reading means does not match the predetermined code In this case, it may be configured to stop the coupling operation of the connector and the corresponding connector.

In the system of the present invention, the connector consists of a male connector, and the corresponding connector is a female connector into which the connector is inserted It may be made of a female connector to be coupled.

In this case, when the female connector and the male connector are coupled, the female connector may be configured to first perform cleaning and drying of the bonding site before starting chemical transfer.

In addition, the connector includes a chemical connector for transferring the chemical, and an inert gas connector for transferring an inert gas in a direction opposite to the chemical transfer direction, and the corresponding connector includes a chemical for transferring the chemical. It may include a corresponding connector for the inert gas and a corresponding connector for the inert gas for transferring the inert gas in a direction opposite to the transport direction of the chemical.

According to the present invention, the entire process of fluid connection, chemical transfer, and disconnection between the tank lorry and the storage tank can be fully automated, so that the operator is exposed to chemicals compared to the conventional method in which the operator manually performs the hose mounting/removing operation. can be prevented fundamentally.

In addition, according to the present invention, preparation of the chemical transfer operation is completed only by parking the tank lorry at a predetermined position. Therefore, there is no need for mounting/removing and cleaning of the hose, thereby increasing the efficiency of the operation.

In addition, according to the present invention, it is possible not to use a separate chemical hose on the tank lorry side, and it is possible to fundamentally prevent problems such as chemical leakage due to aging of the soft hose.

The following drawings attached to this specification illustrate preferred embodiments of the present invention, and serve to further understand the technical spirit of the present invention together with the detailed description of the present invention to be described later, so that the present invention is a matter described in such drawings should not be construed as being limited only to
1 is a diagram schematically showing the configuration of a chemical transport system between a chemical tank lorry and a chemical storage tank according to an embodiment of the present invention.
Figure 2 is a partial exploded perspective view schematically showing the configuration of the tank lorry including the connector provided on the upper portion of the chemical tank lorry in the chemical transport system shown in Figure 1 .
FIG. 3 is a longitudinal sectional view showing the configuration of main parts of the chemical transport system shown in FIG. 1 .
FIG. 4 is a longitudinal cross-sectional view illustrating a part of a lifting unit that is a part of a building-side configuration, a blocking unit, and a corresponding connector module in the chemical transport system shown in FIG. 3 .
FIG. 5 is a perspective view illustrating a corresponding connector for chemicals and a connector holder that are part of a building-side configuration in the chemical transport system shown in FIGS. 3 and 4 .
Fig. 6 is an exploded perspective view showing the disassembled connector and connector holder for chemicals shown in Fig. 5;
7 is a perspective view illustrating a connector cap detachable unit that is a part of a building-side configuration in the chemical transport system shown in FIGS. 3 and 4 .
8 to 11 are longitudinal cross-sectional views illustrating a process of coupling a connector and a corresponding connector using the chemical transport system shown in FIG. 3 and transporting the chemical.
12 is a cross-sectional view taken along line A-A' of FIG. 11, illustrating a state immediately after the chemical connector shown in FIG. 11 and the corresponding chemical connector shown in FIG. 11 are coupled.
13 is a cross-sectional view taken along line A-A' of FIG. 11, showing a state in which the chemical connector and the chemical corresponding connector shown in FIG. 11 are fully coupled to allow chemical transfer.

Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings. The terms or words used in the present specification and claims should not be construed as being limited to their ordinary or dictionary meanings, and the inventor may properly define the concept of the term in order to best describe his invention. Based on the principle that there is, it should be interpreted as meaning and concept consistent with the technical idea of the present invention. Therefore, the configuration shown in the embodiments and drawings described in this specification is only the most preferred embodiment of the present invention and does not represent all of the technical idea of the present invention, so at the time of the present application, various It should be understood that there may be equivalents and variations.

In the drawings, the size of each component or a specific part constituting the component is exaggerated, omitted, or schematically illustrated for convenience and clarity of description. Accordingly, the size of each component does not fully reflect the actual size. If it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the gist of the present invention, such description will be omitted.

As used herein, the terms 'coupled', 'mounted', 'fixed' or 'connected' refer to the case where one member and another member are directly coupled, mounted, fixed or connected, as well as when one member engages an intermediate member. It also includes cases where it is indirectly coupled, mounted, fixed, or connected to another member through the intervening.

In addition, although terms indicating directions such as up, down, left, right, front, back, vertical, and horizontal are used in this specification, these directions may vary depending on the direction in which the object is placed and the direction of observation. However, in the present specification, the direction is set and described based on the state shown in FIG. 1 , that is, the tank lorry 10 is normally parked on the non-sloping ground E.

Meanwhile, in the present specification, the term chemical includes a liquid such as pure water or various acidic, alkaline or neutral solutions, and furthermore, an emulsion or paste state such as a slurry in which a liquid is mixed with a powder, and further gas It may also include a state. However, in the following description, a case of transferring the chemical in a liquid state will be described as an example. In addition, in the following description, a system for transferring chemicals from a tank lorry to a storage tank in a building will be described.

1 is a diagram schematically showing the configuration of a chemical transport system (hereinafter, also referred to as 'chemical transport system' or 'system') between a chemical tank lorry and a chemical storage tank according to an embodiment of the present invention. In addition, FIG. 2 is a perspective view schematically showing the configuration of the tank lorry side in the system of this embodiment, and FIG. 3 is a longitudinal sectional view showing the main configuration of the system tank lorry side and the building side (structure side) of the present embodiment. In addition, FIG. 4 is a longitudinal cross-sectional view showing a part of the elevating unit, which is a part of the building-side configuration in FIG. 3, a blocking unit, and a corresponding connector module.

First, referring to FIG. 1 , the chemical transport system according to this embodiment is a system for transporting chemicals from the tank lorry 10 to the storage tank 3 in the building. includes The tank lorry 10 is a vehicle containing and transporting chemicals in the tank 11, and the tank lorry side includes connectors 100a and 100b fluidly connected to the inside of the tank 11 of the tank lorry 10 as a main component. The building may be a building of a semiconductor factory or a chemical factory, and the building may have an outer wall 2 or a roof (canopy) protruding as a structure having a height at which the tank lorry 10 can be located below it. The building side comprises, as a main component, corresponding connectors 200a and 200b fluidly connected to the storage tank 3 . In addition, a valve for controlling the passage of chemicals or inert gas may be provided in the chemical line or inert gas line connecting the storage tank 3 or the inert gas supply source 4 to be described later and the corresponding connectors 200a and 200b.

In the system according to this embodiment, when an operator parks the tank lorry 10 at a predetermined position below the structure, that is, the protruding outer wall 2, the connectors 100a and 100b and the corresponding connectors 200a and 200b are coupled to each other. It is configured to transfer chemicals from the tank 11 of the tank lorry 10 to the storage tank 3 .

On the other hand, in order to guide the operator to park the tank lorry 10 at a predetermined position, the ground (E) has a guide lane (not shown) in the form of a groove corresponding to the wheel width of the tank lorry 10 and a reverse sill ( not shown) may be provided. In addition, if the tank lorry 10 is parked at a predetermined position in reverse, the shutter 5 is lowered in front of the tank lorry 10 to prevent movement of the tank lorry 10 during the chemical transfer operation, or a forward sill that appears in front of the wheels (not shown) can be provided to raise it.

In addition, on the building side, an operation panel 7 including a button and a display for operation of a chemical transfer operation and a control unit for controlling the system may be provided. In addition, the tank lorry 10 may also be provided with a control unit or a remote control for controlling the operation of the configuration on the tank lorry side to be described later.

Hereinafter, the detailed configuration of the system of the present embodiment will be described in detail.

1 to 3 , the tank lorry-side configuration includes connectors 100a and 100b fixed to be exposed on the upper portion of the tank 11 of the tank lorry 10 . Specifically, the depression 12, which is recessed downward in a predetermined position (a position facing the building-side corresponding connectors 200a and 200b when the tank lorry is parked at a predetermined position) of the tank 11 of the tank lorry 10, provided, and the connectors 100a and 100b may be provided in a vertically erected form in the recessed portion 12 . In addition, a sliding door 14 may be provided in the recessed portion 12 as a connector cover that is opened during chemical transfer to expose the connectors 100a and 100b and covers and closes the recessed portion 12 . The sliding door 14 can be slidably driven by a driving means 15 including a pneumatic or hydraulic cylinder or a motor and a gear. Therefore, by closing the sliding door 14 while the chemical transfer operation is not performed, such as during operation of the tank lorry 10, chemicals leak from the connectors 100a and 100b or external contamination sources such as snow, rain or dust into the depression 12. This can be prevented from entering.

Meanwhile, referring to FIGS. 2 and 3 , on the opposite side to the sliding door 14 , a blocking unit fixing door 16 having a shorter length than the sliding door 14 is provided together with the driving means 17 . The operation of this blocking unit fixing door 16 will be described later.

The connectors 100a and 100b are formed to correspond to the corresponding connectors 200a and 200b on the building side, for example, the connectors 100a and 100b are male connectors, and the corresponding connectors 200a and 200b are female connectors. 100a, 100b) can be coupled by inserting the tip ends of the corresponding connectors (200a, 200b).

In this embodiment, the connectors 100a and 100b include a chemical connector 100a for transferring chemicals, and an inert gas connector 100b that receives an inert gas such as compressed nitrogen from the building-side inert gas supply source 4 . includes Connectors (100a, 100b) are each in fluid connection with the inside of the tank 11 of the tank lorry 10, in particular, the chemical connector (100a) is a dip tube (dip tube) 105 extending to the vicinity of the bottom of the tank 11 inside It may be in fluid connection with the inside of the tank 11 through the .

In this embodiment configured in this way, the chemical transport is performed by coupling the chemical connector 100a and the inert gas connector 100b to the chemical corresponding connector 200a and the inert gas corresponding connector 200b, respectively, and the building From the side, an inert gas is supplied to the tank lorry through the corresponding connector 200b for inert gas and the connector 100b for inert gas, and the pressure of the inert gas from the bottom of the tank 11 to the dip tube 105 and the chemical connector (100a) and the chemical through the corresponding connector (200a) for the chemical is made in such a way that the pressure is sent to the building side. However, the present invention is not limited to the chemical transport by the pressure feeding method. That is, the present invention is applicable to a method of transporting chemicals by a pump. In this case, the connector 100b for inert gas, the corresponding connector 200b for inert gas, and the inert gas supply source 4 on the building side are unnecessary, and instead, a pump is required for the chemical line on the building side or the tank lorry side. .

On the other hand, since the chemical connector 100a and the inert gas connector 100b have the same or similar structure except for the size different, the chemical connector 100a will be mainly described below and the inert gas connector 100b. A description thereof will be omitted. In the following description, the reference numerals 'a' and 'b' in the reference numerals represent the same and similar chemical and inert gas configurations, respectively. You can omit the sign.

As shown in FIG. 2 , the connector 100 may have a stepped structure in which the outer diameter is gradually reduced toward the tip or a tapered structure in which the outer diameter is continuously reduced. Although this will be described in detail later, when the corresponding connector 200 is approached to the connector 100 and coupled, the connector 100, which is a male connector, is a male connector even if the centers of the connector 100 and the corresponding connector 200 are not completely aligned. This is to enable insertion into the female connector corresponding to the connector 200 . In addition, the outer diameter of the neck portion 120 of the connector 100 is formed to be smaller than the outer diameter above it. This is to ensure that the fixing member that prevents the connector 100 from being unintentionally released after the connector 100 and the corresponding connector 200 are coupled, as will be described later in detail, is caught.

In addition, a groove-shaped key code (key-code) 110a may be formed on the outer peripheral surface of the connector 100, in particular, the chemical connector 100a. The key code 110a is formed in a unique pattern, that is, a specific number (usually two or more, in a specific direction) according to the type of chemical contained in the tank 11 of the tank lorry 10 . In addition, a corresponding key code (not shown) formed in the form of a projection is formed at a position corresponding to the key code 110a of the connector 100a on the inner peripheral surface of the corresponding connector 200a. Therefore, only the connector 100a and the corresponding connector 200a in which the key code 110a and the corresponding key code match can be coupled to each other, and it is possible to prevent misinjection of chemicals (mistransfer) that may cause a major accident. .

For example, in this embodiment, when the key code 110a defines the rear (-Y direction) of the tank lorry as the 12 o'clock direction, as shown in FIG. It is formed in the form of two grooves, and a total of two corresponding key codes, one in the 12 o'clock direction and the 9 o'clock direction, respectively, may also be formed in a protrusion shape on the inner peripheral surface of the corresponding connector 200a. Of course, here the key code 110a has a groove shape and a corresponding key code has a protrusion shape, but these two can be interchanged, and further, the key code 110a has both a groove and a protrusion, and the corresponding key code also has a protrusion shape. Correspondingly, it may have both projections and grooves.

On the other hand, in the key code 110a and the corresponding key code, for example, the key code formed in the 12 o'clock direction and the corresponding key code are referred to as reference key codes. Otherwise, the connector 100a and the corresponding connector 200a are not coupled. Accordingly, although described later in detail, the coupling process of the connector 100a and the corresponding connector 200a includes a process of aligning the two reference key codes in a predetermined direction.

In addition, the entrance of the groove-shaped key code 110a is widened. This is, even if the key code 110a and the reference key code of the corresponding key code are not completely aligned, when the corresponding connector 200a is approached and coupled to the connector 100a, the protrusion-shaped corresponding key code is a groove with an expanded entrance. It is inserted while being guided by the key code 110a of the form so that the connector 100a and the corresponding connector 200a are coupled to each other.

On the other hand, in this embodiment, although the case where the key code 110a and the corresponding key code are formed only in the chemical connector 100a and the chemical corresponding connector 200a is described as an example, the inert gas connector 100b and the inert gas connector 100b A key code and a corresponding key code may be formed in the gas connector 200b as well, and furthermore, the chemical connector 100a and the chemical connector 200a, the inert gas connector 100b, and the inert gas compatible connector (200b) may not all have such a keycode and a corresponding keycode.

In the recessed portion 12, in addition to or in place of the key code 110a, in addition to the above-described key code 110a, as a means for preventing misinjection (misfeed) of chemicals, the inside of the tank 11 of the tank lorry 10 Depending on the type of chemical contained in the unique code 140 may be provided in the form of a barcode or QR code. In addition, a code reading means (not shown) that can read the code 140 is provided on the structure side, and when the code 140 read by the code reading means does not match the predetermined code, the connector 100 and corresponding The coupling operation of the connector 200 may be configured to be stopped. Either one of the code 140 and the aforementioned key code 110a may be provided, or both may be provided.

The connector 100 is made in the form of a hollow tube having a flow path formed therein, and a check plate 131 is provided to block the flow path through a compression spring 132 at the tip of the connector 100 (see FIG. 12 ). . Although this will be described in detail later, when the connector 100 and the corresponding connector 200 are completely coupled and fluidly connected, the pressure member 233 provided on the corresponding connector 200 side pushes the check plate 131 to open the flow path, thereby opening the chemical This is to prevent chemical leakage by blocking the flow path.

Furthermore, the connectors 100a and 100b may be further provided with respective connector caps 150a and 150b as a chemical leakage preventing means to be covered with the respective connectors 100a and 100b. In this case, the connector caps 150a and 150b become a connector cover in place of or together with the sliding door 14 described above. The connector caps 150a and 150b are provided in a structure and size to cover the upper portions of the neck portions 120a and 120b of the respective connectors 100a and 100b, and are provided with two large diameter portions 151a having relatively large outer diameters on the outer circumferential surface. , 152a; 151b, 152b) and small diameter portions 153a and 153b with small outer diameters are provided between the two large diameter portions 151 and 152, respectively. is configured to be automatically detachable from each of the connectors 100a and 100b.

1, 3 and 4 , the structure-side configuration includes corresponding connectors 200a and 200b provided to be exposed on the bottom surface of the structure, that is, the outer wall 2 of the building. In addition, when the above-described tank lorry-side configuration includes the connector caps 150a and 150b, it may further include a connector cap detaching unit 400 for automatically attaching and detaching the connector caps 150a and 150b, and the connector 100a, 100b) and the corresponding connectors 200a and 200b may further include a vision unit 300 as a sensor for detecting positions of the connectors 100a and 100b for a smooth coupling operation.

In one embodiment, an upwardly depressed space S is formed in a predetermined position (a position facing the connectors 100a and 100b when the tank lorry is parked at a predetermined position) of the bottom of the building outer wall 2, and this space ( In S), the structure side configuration is provided in a vertically suspended form. In particular, in the present embodiment, the corresponding connectors 200a and 200b, the connector cap detachable unit 400 and the vision unit 300, which are structures on the side of the structure, may be provided as one corresponding connector module 20 that can be lifted together. In addition, the corresponding connector module 20 may be installed inside the blocking unit 30 formed in the form of a barrel with an open bottom, and the corresponding connector module 20 is formed by the lifting unit 40 together with the blocking unit 30 . It may be configured to be liftable integrally.

Specifically, the blocking part 30 may be configured in a shape corresponding to the recessed part 12 to be inserted into the recessed part 12, which is a configuration on the tank lorry side, when descending, that is, in the present embodiment, in the form of a square barrel with an open bottom. . Therefore, when the blocking part 30 is lowered by the lifting unit 40 and inserted into the recessed part 12, as shown in FIG. 8, the connectors 100a and 100b installed inside the recessed part 12 and Corresponding connectors 200a and 200b installed inside the blocking unit 30, the connector cap detaching unit 400, and the vision unit 300 are surrounded by the blocking unit and blocked from outside air, so chemical leakage or external contamination sources during chemical transfer work inflow is blocked.

In addition, a fixing groove 31 is formed on the outer surface of the side wall of the blocking portion 30, and a retractable fixing member is provided on the inner wall of the recessed portion 12, as shown in FIG. 8, the blocking portion 30 is lowered and inserted into the recessed portion 12 , the fixing member protrudes and is inserted into the fixing groove 31 , thereby fixing the blocking portion 30 from rising. Specifically, the fixing member may be implemented as the sliding door 14 and the blocking portion fixing door 16 installed on the upper portion of the depression 12 described above.

In addition, the lower edge 32 of the blocking part 30 and the upper edge 13 of the recessed part 12 are chamfered or rounded, so that the blocking part 30 and the recessed part 12 are not perfectly aligned. Even if the outer surface of the blocking portion 30 is guided to the inner wall of the recessed portion 12, the blocking portion 30 may be configured to be lowered and inserted.

The lifting unit 40 is provided above the blocking part 30 in the space S formed at the bottom of the building outer wall 2 . Specifically, the lifting unit 40 includes a first movable frame 42 , a first movable frame 42 , slidably installed in a first horizontal direction (Y-axis direction) in a fixed frame 41 fixed to the upper bottom surface of the space S. A second movable frame 43 installed slidably in the second horizontal direction (X-axis direction) under the movable frame 42, and a hydraulic or pneumatic cylinder 44 interposed therebetween can be raised and lowered in the vertical direction (Z-axis direction) and a connecting shaft 46 connecting the lifting frame 45 and the lifting frame 45 and the blocking unit 30 to each other. Therefore, according to this lifting unit 40, even if the tank lorry 10 is not accurately parked at a predetermined position and the blocking part 30 and the recessed part 12 are slightly shifted in the horizontal direction (XY direction), the first movable frame (42) and the second movable frame 43 to move the blocking part 30 in the horizontal direction to align the blocking part 30 and the recessed part 12, and then the blocking part 30 can be lowered. .

On the other hand, the means for sliding the first movable frame 42 and the second movable frame 43 in the horizontal direction under the fixed frame 41 and the first movable frame 42, respectively, is a hydraulic or pneumatic cylinder (not shown) Alternatively, it may be implemented as a power transmission means such as a motor and a gear. In particular, when the driving means is implemented as a hydraulic or pneumatic cylinder, since it can expand and contract to some extent along the sliding direction (each horizontal direction) due to the characteristics of the hydraulic or pneumatic cylinder, the blocking part 30 is a recessed part as shown in FIG. Even if a slight vibration or deviation occurs in the horizontal direction between the blocking part 30 and the recessed part 12 due to the vibration of the tank lorry 10 or the structure side configuration in the state that is inserted and fixed in the 12, it absorbs it and the blocking part It is possible to maintain the fixed state of the (30) and the depression (12).

Similarly, since the hydraulic or pneumatic cylinder 44 for driving the lifting frame 45 is also expandable and contractible to some extent in the vertical direction, the blocking part 30 is inserted into the recessed part 12 and fixed as shown in FIG. In the state in which the load of the tank lorry 10 changes according to the transport of the chemical, even if the height of the tank lorry 10, that is, the depression 12 slightly changes, it absorbs this and fixes the blocking part 30 and the depression part 12 state can be maintained.

On the other hand, when the tank lorry 10 is parked obliquely backwards, the longitudinal central axis of the tank lorry 10 and the Y-axis of FIG. 3 may be shifted at a slight angle. In this case, it is necessary to rotate the blocking part 30 by an offset angle to align with the recessed part 12 . To this end, the lifting unit 40 may have a configuration for rotating the blocking unit 40 within a predetermined angular range about the vertical axis (Z axis). Specifically, the lifting unit 40 is provided with a motor 48 for rotating the connecting shaft 46 via a bevel gear 47 or a belt, and the connecting shaft 46 installed through the lifting frame 45 is desired. It can be rotated by an angle.

In addition, since the air pressure of the front, rear, left and right wheels of the tank lorry 10 is different from each other, the bottom surface of the recessed part 12 may not be completely level and may be inclined even if it is accurately parked at a predetermined position. In this case, even if the positional alignment of the blocking part 30 and the recessed part 12 is made, the outer surface of the blocking part 30 and the recessed part ( 12), severe friction may occur between the inner walls, so that the blocking part 30 or the recessed part 12 may be deformed or the blocking part 30 may not be smoothly lowered and inserted into the recessed part 12 . Accordingly, the lifting unit 40 may have a configuration such that the blocking unit 30 is lowered and inserted while tilting following the inclination of the inner wall of the recessed portion 12 . Specifically, the lifting unit 40 is provided with a universal joint 49 in the middle of the connecting shaft 46 so that the blocking part 30 can be tilted within a predetermined angle range around the vertical central axis (Z axis). can do.

On the other hand, on the structure side, similar to the configuration on the tank lorry side, during the chemical transfer operation, the space (S) where the structure side configuration is installed is opened to expose the corresponding connectors (200a, 200b), etc., and the space (S) is covered and closed. A sliding door 50 may be provided as a corresponding connector cover. The sliding door 50 can be slidably driven by a driving means 51 including a pneumatic or hydraulic cylinder or a motor and a gear.

The corresponding connector module 20 is installed in the horizontal frame 33 inside the blocking part 30 . In the present embodiment, the corresponding connector module 20 includes corresponding connectors 200a and 200b , a connector cap attaching and detaching unit 400 , and a vision unit 300 . Corresponding connectors 200a and 200b are installed at positions corresponding to the respective connectors 100a and 100b in a state in which the blocking portion 30 is inserted into the recessed portion 12 and fixed, and the connector cap attaching and detaching unit 400 is It is installed between the two corresponding connectors 200a and 200b, and the vision unit 300 includes the lower recessed part 12 and the connector without interfering with the operation of the corresponding connectors 200a and 200b and the connector cap attaching/removing unit 400 . (100a, 100b) is installed in a position that can be detected.

On the other hand, when the position alignment of the blocking part 30 and the recessed part 12 is made by the above-mentioned lifting unit 40 and the coupling of the blocking part 30 and the recessed part 12 is performed, the connector 100 and Since the position of the corresponding connector 200 and the position of the connector cap detaching unit 400 are also automatically aligned, there is no need to separately align the corresponding connector module 20 . Accordingly, the corresponding connector module 20 may be fixedly installed in the blocking portion 30 . However, since the corresponding connector 200 and the connector cap attaching and detaching unit 400 need to be lifted separately as described later, the corresponding connector 200 and the connector cap attaching and detaching unit 400 are mounted on the horizontal frame 33 . In each of the installed vertical frames (34a, 34b, 34c), the motors (35a, 35b, 35c) and a gear or a lifting means such as a pneumatic cylinder is installed to be able to lift independently.

On the other hand, in the embodiment in which the connector cap 150 is not covered on the connector 100 on the tank lorry side, there is no need to provide the connector cap detachable unit 400, and the two corresponding connectors 200a and 200b must also be lifted independently. no need. Therefore, in this case, without each vertical frame (34a, 34b, 34c) and independent lifting means, the blocking portion 30 is lowered by the aforementioned lifting unit 40 and inserted and fixed in the recessed portion 12, the connector (100a, 100b) and each corresponding connector (200a, 200b) may be fixedly installed at a position capable of being coupled at the same time.

However, even if the blocking part 30 and the recessed part 12 are precisely aligned, there is an alignment error between the position of the connector 100 and the position of the corresponding connector 200 and the connector cap attaching and detaching unit 400 due to assembly tolerances, etc. there may be Therefore, in order to solve such an error, the corresponding connector 200 and the connector cap attaching and detaching unit 400 may be slidably installed on the horizontal frame 33 in the Y-axis direction with the sliding frame 36 interposed therebetween. In addition, the horizontal frame 33 can also be installed to be slidable in the X-axis direction. Furthermore, although FIG. 3 shows an example in which the corresponding connectors 200a and 200b and the connector cap detachment unit 400 are installed on a common sliding frame 36 and slidably installed in the Y-axis direction at the same time, the corresponding connector 200a , 200b) and the connector cap attaching and detaching unit 400 may be installed to be slidably slidable independently in the Y-axis direction on the horizontal frame 33 via an individual sliding frame, and furthermore, the corresponding connectors 200a and 200b and the connector cap The detachable unit 400 includes an X-axis sliding frame and a Y-axis sliding frame having a structure similar to that of the first movable frame 42 and the second movable frame 43 of the above-described elevating unit 40, respectively, with the blocking unit 30 interposed therebetween. ), by installing them on the upper and lower surfaces, respectively, it is possible to independently slide in the X-axis direction and the Y-axis direction.

The vision unit 300 is for precisely detecting the position and angle of the depression 12 positioned below by image data processing, and includes an imaging means such as a CCD camera. The image data captured by the imaging means of the vision unit 300 is sent to a control unit (not shown), and the control unit calculates the exact position and angle of the depression 12 , and the first movable frame of the lifting unit 40 . By utilizing the horizontal sliding drive control of the 42 and the second movable frame 43 and the rotation control of the connecting shaft 46 by the motor 48, the blocking part 30 is aligned with the recessed part 12 will do

In addition, when the corresponding connectors 200a and 200b and the connector cap detachment unit 400 are installed to be slidable in the horizontal direction as described above, the vision unit 300 is positioned below the connectors 100a and 100b. may be captured by an imaging means and the image data may be sent to a control unit (not shown). Then, the control unit calculates the correct positions of the connectors 100a and 100b, and utilizes the horizontal sliding drive control of the sliding frame 36, thereby connecting the corresponding connectors 200a and 200b and the connector cap detachment unit 400 to the connector 100a. ,100b) is aligned.

On the other hand, as described with reference to FIG. 2, when a unique code 140 is attached to the tank lorry side, that is, according to the type of chemical according to the type of chemical, a means for reading the code may be provided on the structure side. . Such a code reading means may be implemented as a separate barcode reader or a QR code reader (not shown), and the aforementioned vision unit 300 may also serve as such a code reading means.

Corresponding connector 200 has a shape corresponding to the connector 100 on the tank lorry side, and in this embodiment is a female connector, so that the distal end of the connector 100 can be inserted into the corresponding connector 200 to be coupled. The mating connector 200 in the present embodiment includes a chemical mating connector 200a corresponding to the chemical connector 100a and an inert gas mating connector 100b corresponding to the inert gas connector 100b.

On the other hand, since the corresponding connector for chemicals 200a and the corresponding connector for inert gas 200b have the same or similar structure except for the size different, the corresponding connector for chemical 200a will be mainly described below and the corresponding connector for inert gas. A description of (200b) will be omitted. In the following description, the reference numerals 'a' and 'b' in the reference numerals represent the same and similar chemical and inert gas configurations, respectively. Omit the sign.

5 and 6 are perspective views illustrating a combined state and an exploded state of a corresponding connector for chemicals and a connector holder, which are part of the building-side configuration, respectively, in the chemical transport system shown in FIGS. 3 and 4 .

5 and 6, the corresponding connector 200 is mounted to the vertical frame 34 (refer to Fig. 4, not shown in Figs. 5 and 6) with a connector holder 250 interposed therebetween.

The corresponding connector 200 may include a corresponding connector body 210 and a coupler 230 inserted into the corresponding connector body 210 .

The corresponding connector body 210 is formed in the form of a hollow tube having a space formed therein. On the lower inner surface of the corresponding connector body 210, a step or tapered structure is formed on the outer circumferential surface of the connector 100 so that the connector 100 on the tank lorry side can be inserted (see FIG. 12) ). In addition, when the groove-shaped key code 110a is formed on the outer circumferential surface of the chemical connector 100a as described above, the key code 110a of the connector 100a on the lower inner surface of the corresponding chemical connector body 210a ), a corresponding key code (not shown) in the form of a protrusion is formed at a position corresponding to the .

In addition, on the upper outer peripheral surface of the corresponding connector main body 210, a mounting portion 211 that is detachably attached to the connector holder 250 by the fastening means 212 is provided. Here, the fastening means 212 may be formed of a hook clamp for easy attachment and detachment. The mounting part 211 has a ring shape surrounding the corresponding connector body 210 . The mounting part 211 is mounted and fixed to the connector holder 250 by the fastening means 212, and as will be described later, the corresponding connector body 210a for chemicals is configured to be rotatable about its central axis (Z axis). can be In this case, the mounting portion 211a is preferably made of a bearing that enables stable and smooth rotation of the corresponding connector body 210a for chemicals.

On the other hand, a driven pulley 213a is provided below the mounting portion 211a of the corresponding connector body 210a for chemicals, and the driven pulley 213a is a driving pulley ( 291a). In addition, a motor 290a for rotationally driving the driving pulley 291a is mounted on the connector holder 250a. That is, the drive pulley 291a, the belt 214a, and the driven pulley 213a constitute a power transmission mechanism, and this power transmission mechanism can be changed to another power transmission mechanism such as a gear. Corresponding connector body 210a for chemical by such a motor 290a and power transmission mechanism 291a, 214a, 213a can be configured to be rotatable about its central axis (Z axis) together with the coupler 230a. There is, for the following reasons.

That is, as described above, a key code 110a is formed on the outer peripheral surface of the connector 100, particularly the chemical connector 100a, and among the key codes 110a, a reference key code (for example, a key code formed in the -Y direction) is formed. ) and the reference key codes among the corresponding key codes formed on the inner peripheral surface of the corresponding connector for chemicals 200a must be aligned so that the directions (angles) coincide with each other, so that the connector 100a and the corresponding connector 200a can be coupled. In general, when the recessed portion 12 and the blocking portion 30 are aligned and coupled with each other in direction and position, the reference key codes of the connector 100a and the corresponding connector 200a are also aligned so that the directions coincide with each other, but assembly tolerance, etc. In the case of not being aligned for the reason of , it is necessary to rotate the corresponding connector 200a by an offset angle to match the direction of the reference key code. The alignment of the reference key code may be performed by a controller (not shown) by utilizing the above-described vision unit 300 .

The coupler 230 is formed in the form of a hollow tube having a flow path formed therein, and may be inserted into and coupled to the upper portion of the corresponding connector body 210 to be slidable in the vertical direction inside the corresponding connector body 210 .

Specifically, as shown in FIGS. 12 and 13, the coupler 230 is coupled to form a space between the inner circumferential surface of the corresponding connector body 210 and the outer circumferential surface of the coupler 230 via the bushing 235, By supplying/discharging compressed air through the compressed air inlets 221 and 222 formed in the connector body 210 corresponding to this space, the bushing 235 is pushed in the vertical direction so that the coupler 230 is slidable in the vertical direction. That is, the coupler 230 and the corresponding connector body 210 may operate like a pneumatic cylinder.

Also, at the lower end of the coupler 230 , similarly to the above-described connector 100 , a check plate 231 is provided to block the flow path via a compression spring 232 (see FIG. 12 ). Accordingly, when the chemical is not transferred, the flow path is blocked to prevent the chemical from leaking. On the other hand, a pressing member 233 is provided on the lower surface of the check plate 231 . When the coupler 230 descends, the check plate 131 of the connector 100 is pushed downward by the pressing member 233 to open the flow path of the connector 100, and at the same time, the check plate 231 of the coupler 230 is also The flow path of the coupler 230 is also opened by being pushed upward (refer to the arrow of FIG. 13), and chemical transfer is possible.

On the other hand, in a state immediately after the connector 100 and the corresponding connector 200 are coupled, the coupler 230 is controlled to maintain a spaced apart state from the connector 100 (state of FIG. 12 ). In addition, in the corresponding connector body 210 , washing water inlets 223 and 224 and drying gas outlets 225 and 226 communicating with the space C between the coupler 230 and the connector 100 are formed. Therefore, immediately after the connector 100 and the corresponding connector 200 are combined for chemical transfer and after chemical transfer, the coupler 230 slides upward, so that the coupler 230 and the connector 100 are spaced apart ( 12), the connector 100 and the corresponding connector 200 exposed to the interspace C by sequentially supplying the washing water and the drying gas through the washing water inlets 223 and 224 and the drying gas inlets 225 and 226, respectively. ) can be washed and dried.

Further, a fixing member 215 capable of moving forward and backward in the radial direction of the corresponding connector 200 is provided at the lower end of the corresponding connector body 210 . The fixing member 215 can be driven forward and backward by, for example, a pneumatic cylinder 216 . When the connector 100 is inserted into the connector 200, the fixing member 215 is controlled to advance in the central direction of the connector 200 so as to be in close contact with the outer circumferential surface of the neck portion 120 of the connector 100 . According to the fixing member 215 , it is possible to prevent an unintentional release of the coupling after the connector 100 and the corresponding connector 200 are coupled.

The connector holder 250 is a component for enclosing and supporting the corresponding connector 200 in a detachable and elevating manner. The connector holder 250 wraps the corresponding connector 200 in the longitudinal direction (Z-axis direction), and one side is opened along the longitudinal direction, so that the cross-sectional shape perpendicular to the longitudinal direction may be formed in a U-shape. Accordingly, when the above-described fastening means 212 is released and the belt 214a is peeled off from the pulleys 213a and 291a, the corresponding connector 200 is removed from the connector holder 250 as shown in FIG. It can be easily separated. In addition, when the corresponding connector 200 is mounted on the connector holder 250 , the corresponding connector 200 is pushed into the inner space of the connector holder 250 through the open side of the connector holder 250 , and the belt 214a ) is wound around the pulleys 213a and 291a, and the mounting part 211 is fastened to the connector holder 250 by means of a fastening means 212, so that it can be easily mounted.

In this embodiment, the connector holder 250 includes a lifting frame 251 that is vertically coupled to the aforementioned vertical frames 34a and 34b (refer to FIGS. 3 and 4 ), and is fixed to the lifting frame 258 . It includes a fixing part 260 and tilting parts 270 and 280 that are tiltably coupled to the fixing part 260 . In addition, the corresponding connector 200 is mounted on the connector holder 250 by mounting the mounting portion 211 on the tilting portions 270 and 280 . That is, since the corresponding connector 200 is mounted on the tilting parts 270 and 280 , when the tilting parts 270 and 280 are tilted with respect to the fixing part 260 , the corresponding connector 200 is also tilted with respect to the fixing part 260 . The reason for configuring the corresponding connector 200 to be tiltable in this way is, as described above, the difference in air pressure of the front, rear, left and right wheels of the tank lorry 10 or the connector 100 due to the assembly tolerance of the connector 100 and the corresponding connector 200. This is so that the corresponding connector 200 can be smoothly coupled with the connector 100 while following this inclination even when the corresponding connector 200 is not accurately perpendicular to the ground (E).

In this embodiment, this tilting function is implemented by a plurality of shock absorbers 261,271. Specifically, the shock absorber 261 includes a cylinder 262 having an open end (lower end in this embodiment) and an inner space formed therein, and a rod elastically capable of advancing and retreating into the inner space through the open end of the cylinder 262 ( 263). As the shock absorber, a spring-type, pneumatic or hydraulic shock absorber may be used.

The shock absorber 261 is an element that absorbs and buffers the shock applied in one direction (Z-axis direction) by expanding and contracting in the one direction, and a tilting function cannot be smoothly implemented with only one shock absorber 261 . Therefore, a plurality (at least three, in this embodiment, four) is used. Specifically, the plurality of shock absorbers 261 are arranged parallel to each other so that the expansion and contraction direction is in the vertical direction (Z-axis direction), along the periphery of the corresponding connector 200 at equal intervals as possible, and the plurality of shock absorbers 261 One end (the upper end of the cylinder 262 ) is fixed to the lower surface of the lifting frame 258 or the first bracket 251 constituting the fixing part 260 . And the other end (lower end of the rod 263) of the plurality of shock absorbers 261 is fixed to the second bracket 252 constituting the tilting part 270 .

In this state, by lowering the lifting frame 258, the connector 100 is inserted into the inner peripheral surface of the lower end of the corresponding connector 200, and at this time, the connector 100 or the corresponding connector 200 is tilted with respect to the vertical direction (Z-axis direction). In the case of loss, there is a difference in the degree to which the rods 263 of each of the plurality of shock absorbers 261 enter the inner space of the cylinder 262, and accordingly, the tilting part 270 and the corresponding connector mounted on the tilting part naturally. (200) is also tilted.

Meanwhile, in order to implement the tilting of the corresponding connector 200 more smoothly, the tilting unit may be configured in multiple stages. Specifically, as shown in FIGS. 5 and 6 , in addition to the tiling part 270 , a plurality of ends having one end fixed to the lower surface of the second bracket 252 and the other end fixed to the third bracket 253 are provided. An additional tilting unit 280 in which a tilting function is implemented by the shock absorber 271 may be further provided. Here, since the plurality of shock absorbers 271 implementing the additional tilting unit 280 have substantially the same structure as the plurality of shock absorbers 261 implementing the above-described tilting unit 270 , a detailed description thereof will be omitted.

On the other hand, the mounting part 211 of the corresponding connector 200 is fixed to the tilting part (in this embodiment, the additional tilting part 280), specifically, the fastening means on the lower surface of the fifth bracket 255 constituting the additional tilting part. It is coupled by hook clamps 212 and 257.

Further, in the connector holder 250a, the above-described motor 290a is mounted via the sixth bracket 256a, and the driving pulley 291a connected to the motor shaft, the belt 214a and the corresponding connector 200a are driven. The corresponding connector 200a can be rotated about the vertical axis (Z axis) by the pulley 213a.

Meanwhile, reference numeral '259' denotes a vibration-proof rubber that absorbs and buffers system vibrations, such as vibrations during chemical transfer. A plurality of vibration-proof rubber 259 is disposed between the fourth bracket 254 and the fifth bracket 255 disposed between the third bracket 253 and the fifth bracket 255 . Here, the fourth bracket 254 may be omitted, and the vibration-proof rubber 259 may be directly disposed between the third bracket 253 and the fifth bracket 255 . In addition, in the above description, it has been described that the motor 290a is mounted on the connector holder 250a via the sixth bracket 256a, but the sixth bracket 256a is omitted and the motor ( 290a) can also be installed.

7 is a perspective view illustrating the connector cap detachment unit 400 that is a part of the building-side configuration in the chemical transport system shown in FIGS. 3 and 4 , and the connector cap detachment unit 400 will be described with reference to FIG. 7 .

The connector cap detaching unit 400 is a component for separating or mounting the connector caps 150a and 150b when the connector caps 150a and 150b are covered with the connectors 100a and 100b, and in this embodiment, two corresponding connectors (200a, 200b) is disposed between the two connectors (100a, 100b) is configured so that the respective connector caps (150a, 150b) can be attached and detached at the same time.

Specifically, the connector cap detaching unit 400 includes a lifting frame 401 that is vertically coupled to the vertical frame 34c (see FIGS. 3 and 4 ) and an arm driving unit fixed to the lifting frame 401 . 410 and gripping arms 420a and 420b coupled to the arm driving unit 410 to be retractable in the Y-axis direction, respectively. The arm driving unit 410 may be implemented as a pneumatic or hydraulic cylinder that drives each of the holding arms 420a and 420b forward and backward in the Y-axis direction. In addition, the gripping arms 420a and 420b include rods 421a and 421b protruding and protruding from the arm driving unit 410, respectively, and fingers 425a, which are opened in an approximately U shape formed at the ends of the rods 421a and 421b, respectively; 425b). The fingers 425a and 425b are formed with an inner diameter approximately equal to or slightly larger than the outer diameter of the small diameter portions 153a and 153b (refer to FIG. 2 ) of the connector caps 420a and 420b, and are elastically protruding and protruding stoppers on the inner circumferential surface of the distal end. (426a, 426b) is provided.

The connector cap detachment unit 400 configured as described above is a finger 425a, 425b) descends until the height of the small diameter portions 153a and 153b of the connector caps 150a and 150b matches, and then the gripping arms 420a and 420b are moved in the Y-axis direction by the arm driving unit 410, respectively. advance to Then, the small-diameter portions 153a and 153b of the respective connector caps 150a and 150b are inserted into the fingers 425a and 425b and gripped by the fingers 425a and 425b (see FIG. 9 ). At this time, the stoppers 426a and 426b are pressed and retracted while the small diameter portions 153a and 153b are inserted into the fingers 425a and 425b, and then the small diameter portions 153a and 153b are completely inserted into the fingers 425a and 425b. Then, it protrudes again so that the fingers 425a and 425b can stably grip the connector caps 150a and 150b. In this state, the connector cap detaching unit 400 is slightly raised by the motor 35c, which is a lifting means, to separate the connector caps 150a and 150b from the respective connectors 100a and 100b, and then, the gripping arms 420a and 420b. ) is retracted so as not to interfere with the corresponding connectors 200a and 200b, and then the connector cap detachment unit 400 is raised again to return to the original position (refer to FIG. 10).

Next, the operation of the system of the present embodiment configured as described above will be described with reference to Figs. 3 and 8 to 13 .

First, the operator parks the tank lorry 10 at a predetermined position. Then, the structure-side configuration and the tank lorry-side configuration face each other up and down when the sliding doors 50 and 14 are closed, as shown in FIG. 3 . In this case, the structure-side configuration and the tank lorry-side configuration are not completely aligned, and an alignment error of several cm to tens of cm may exist.

Then, when the operator starts the operation of the system through the operation panel 7 or the remote control, the structure-side sliding door 50 and the tank lorry-side sliding door 14 are opened. Then, image data such as the position and angle of the recessed part 12, the positions of the connectors 100a and 100b, and further the position of the reference key code of the connector 100a are acquired by the vision unit 300, and As a result of image data processing, an alignment error between the recessed part 12 and the blocking part 30 is calculated. The control unit controls the operations of the first movable frame 42 , the second movable frame 43 , and the motor 48 as necessary based on the calculated alignment error to precisely place the blocking part 30 into the recessed part 12 . sort

On the other hand, when the code 140 (refer to FIG. 2) is provided on the tank roller side, when the code 140 is read by the code reading means and the read code does not match the predetermined code, the operation is performed with a warning message. You can stop and close the sliding doors 14 and 50 .

Then, the control unit operates the hydraulic or pneumatic cylinder 44 to lower the blocking part 30 and insert it into the recessed part 12 . At this time, by the lower edge 32 of the chamfered or rounded blocking part 30 and the upper edge 13 of the recessed part 12, further, the blocking part 30 by the universal joint 49 is a recessed part (12) can be smoothly inserted into When the blocking part 30 completely descends to the bottom surface of the recessed part 12, the tank lorry side sliding door 14 and the blocking part fixing door 16 advance, respectively, and enter the fixing groove 31 of the blocking part 30. It is inserted so that the blocking part 30 and the recessed part 12 are fixed to each other (refer to FIG. 8).

Next, the height of the gripping arms 420a and 420b of the connector cap detaching unit 400 to separate the connector caps 150a and 150b is the small diameter portions 153a and 153b of the connector caps 150a and 150b; see FIG. 2 ) After descending until it coincides with the height of , the gripping arms 420a and 420b are advanced in the Y-axis direction by the arm driving unit 410, respectively. Then, the small-diameter portions 153a and 153b of the respective connector caps 150a and 150b are inserted into the fingers 425a and 425b and gripped by the fingers 425a and 425b (see FIG. 9 ).

Next, in this state, the connector cap detaching unit 400 is slightly raised to separate the connector caps 150a and 150b from the respective connectors 100a and 100b, and then the gripping arms 420a and 420b are respectively retracted to retract the corresponding connector. (200a, 200b), and then lift the connector cap detachable unit 400 again to return to the original position (see FIG. 10).

Subsequently, as shown in Fig. 11, the corresponding connectors 200a and 200b are lowered so that the front end portions (the upper ends of the recesses 120a and 120b; see Figs. 2 and 12) of the respective connectors 100a and 100b correspond to each other. to be inserted into the connectors 200a and 200b. At this time, the fixing member 215 (refer to FIG. 12 ) is retracted so as not to interfere with the insertion of the connector 100 . On the other hand, although the connector 100 or the corresponding connector 200 may not be in an exact vertical state with respect to the ground E, even in this case, the corresponding connector 200 is connected to the connector by the above-described tilting parts 270 and 280 (see FIG. 5 ). It is tilted while following the angle of (100) and can be smoothly coupled. In addition, if necessary, the reference key of the connector 100a and the corresponding connector 200a using the vision unit 300, the motor 290a, and the power transmission mechanisms 291a, 214a, and 213a (refer to FIGS. 5 and 6). After aligning the cords, the corresponding connector 200a can be lowered. When the corresponding connector 200 is completely lowered and the connector 100 is completely inserted, the fixing member 215 is again advanced toward the concave portion 120 of the connector 100 so that the connector 100 and the corresponding connector 200 are separated. It is fixed so as not to be separated (refer to FIG. 12).

When the connector 100 and the corresponding connector 200 are coupled in this way, when compressed inert gas is supplied to the tank lorry through the inert gas connector 100b and the corresponding connector 200b, the chemical connector 100a and Chemicals are transferred from the tank 11 of the tank lorry 10 to the structure side through the corresponding connector 200a.

On the other hand, although the connector 100 and the corresponding connector 200 are blocked from outside air when not in use by each of the sliding doors 14 and 50 or the connector cap 150, perfect sealing may not be achieved and the sliding door 14 . Accordingly, in this embodiment, the coupling portion of the connector 100 and the corresponding connector 200 is first cleaned and dried, and then chemical transfer is started in earnest.

Specifically, referring to FIG. 12 , which is a cross-sectional view taken along line A-A' of FIG. 11 , immediately after coupling of the connector 100 and the corresponding connector 200 , the connector 100 is fully inserted into the corresponding connector 200 . Since the coupler 230 inside the corresponding connector 200 does not descend in the state, each flow path is not opened, and a space C is formed between the connector 100 and the coupler 230 . In this state, the inner surface of the corresponding connector 200, the outer surface of the connector 200, and the coupler 230 exposed to this space C by supplying and draining the washing water to the space C through the washing water inlets 223 and 224. clean the outside of Then, the space C is dried by spraying and exhausting a gas such as heated air or nitrogen through the drying gas inlets 225 and 226 .

Then, as shown in FIG. 13, when the coupler 230 is lowered by supplying/discharging compressed air through the compressed air inlets 221 and 222, the connector 100 by the pressing member 233 of the coupler 230 The check plate 131 is pushed downward to open the flow path of the connector 100, and at the same time, the check plate 231 of the coupler 230 is also pushed upward to open the flow path of the coupler 230 (see arrow in FIG. 13). , chemical transfer is possible.

When the chemical transfer is completed in this way, the above-described operation is performed in the reverse order, that is, the coupler 230 is raised, the space C is cleaned and dried, and the corresponding connector 200 is coupled with the connector 100 by raising the corresponding connector 200 . Release, mounting of the connector cap 150 to the connector 100, raising the blocking part 30, and closing the sliding doors 14 and 50 are performed.

As described above, according to the embodiment of the present invention, the entire process of fluid connection, chemical transfer, and disconnection between the tank lorry 10 and the storage tank 3 can be fully automated to fundamentally prevent workers from being exposed to chemicals.

On the other hand, in the above embodiment, although the chemical is transferred from the tank lorry to the storage tank in the building, the present invention can be applied in the opposite direction, that is, when the chemical is transferred from the storage tank in the building to the tank lorry.

In addition, in the above embodiment, although the case has been described that the connector 100 on the tank lorry side is a male connector and the corresponding connector 200 on the structure side is a female connector, the connector may be configured as a female connector and the corresponding connector as a male connector. have. In this case, as the corresponding connector is composed of a male connector with a small size or load, the structure side configuration can be relatively simplified, and instead, the components for cleaning and drying provided in the female connector and the lifting function of the coupler are provided on the tank lorry side. need to prepare

In addition, in the above embodiment, it has been described that the transport of chemicals is possible by parking the tank lorry 10 backwards and parking at a predetermined position. 10) can be configured to move forward, park at a fixed location, transfer chemicals, and then move forward to exit the tunnel.

Furthermore, although it has been described that the storage tank 3 and the structure side configuration are installed in the building in the above embodiment, the structure is not limited to the building and may be provided in the form of a simple roof in an open space, and the storage tank is located in the basement or the building It may be installed outside.

In addition, in the above embodiment, the tilting function of the connector holder 250 (refer to FIGS. 5 and 6) was implemented with a plurality of shock absorbers 261,271, but if the configuration that can tilt the corresponding connector 200 can be supported, specific The means for implementing the tilting function may be changed. For example, the fixing part 260 and the tilting part 270 of the connector holder 250 are connected via a universal joint, or the outer peripheral surface of the corresponding connector body 210 is formed in a spherical shape, and the connector holder is connected to the corresponding connector body. It is also possible to implement a tilting function by configuring a ball joint surrounding the outer circumferential surface.

In addition, in the above-described embodiment, the connector is directly installed on the upper part of the tank without using a separate hose on the tank lorry side, but in addition to this, a conventional hose (connector is coupled to the end) may be further provided. In this case, it is possible to cope with the case where the system of the present invention is not introduced to the structure side or the structure of the structure side cannot be used due to a failure or the like.

In the above, preferred embodiments of the present invention have been described with reference to the accompanying drawings. However, since the embodiments described in this specification and the configurations shown in the drawings are only the most preferred embodiment of the present invention and do not represent all the technical spirit of the present invention, various It should be understood that there may be equivalents and variations.

E: floor
2: building exterior wall
3: Chemical storage tank
4: Inert gas source
7: Operation panel
10: tank lorry
11: Tank
100a, 100b: connector
105: dip tube
200a, 200b: mating connector
12: depression
14: sliding door
16: door for fixing the blocking part
20: corresponding connector module
30: blocking unit
31: groove for fixing
40: elevating unit
50: sliding door
150a, 150b: connector cap
300: vision unit
400: connector cap detachable unit

Claims (17)

A system for transporting chemicals between a chemical tank lorry and a chemical storage tank, comprising:
a connector fluidly connected to the inside of the tank of the chemical tank lorry and fixed so as to be exposed to the upper part of the tank of the chemical tank lorry; and
It has a shape corresponding to the connector, is fluidly connected to the chemical storage tank, and includes a corresponding connector that can be exposed on the bottom of a structure having a height under which the chemical tank lorry can be located and is provided to be liftable,
When the chemical tank lorry is located at a predetermined position below the structure, the corresponding connector is lowered to be coupled to the connector and the chemical is transported, a chemical transport system between a chemical tank lorry and a chemical storage tank. According to claim 1,
The corresponding connector is movable in the vertical and horizontal directions, a chemical transport system between a chemical tank lorry and a chemical storage tank. 3. The method of claim 2,
The corresponding connector is rotatable within a predetermined angular range about a vertical central axis, a chemical transport system between a chemical tank lorry and a chemical storage tank. 3. The method of claim 2,
The corresponding connector is tiltable within a predetermined angle range with respect to the vertical axis, a chemical transport system between a chemical tank lorry and a chemical storage tank. 3. The method of claim 2,
A sensor for detecting the position of the connector is provided on the structure side,
and the corresponding connector is horizontally movable to the position of the connector sensed by the sensor. According to claim 1,
a connector cover that shields at least a tip of the connector from being exposed to the outside when the connector is not in use; and
A chemical transport system between a chemical tank lorry and a chemical storage tank, further comprising a corresponding connector cover for shielding the corresponding connector from being exposed to the outside of the structure when the corresponding connector is not in use. 7. The method of claim 6,
The connector cover and/or the corresponding connector cover comprises a sliding door capable of opening and closing the space provided with the connector and/or the corresponding connector, a chemical transport system between a chemical tank lorry and a chemical storage tank. 7. The method of claim 6,
The connector cover is made of a cap fastened to the exposed tip of the connector,
A chemical transport system between a chemical tank lorry and a chemical storage tank, which is provided so as to be accessible or spaced apart from the cap and exposed on the bottom surface of the structure, further comprising a connector cap detachable unit having a gripping arm capable of gripping the cap. According to claim 1,
A chemical transport system between a chemical tank lorry and a chemical storage tank, further comprising a blocking unit surrounding the connector and the corresponding connector when the connector and the corresponding connector are coupled to each other to block outside air. 10. The method of claim 9,
The blocking part is made in the form of a barrel with an open bottom,
The corresponding connector is installed inside the blocking part surrounded by the blocking part,
Further comprising a lifting unit for elevating the blocking portion toward the connector,
A chemical transport system between a chemical tank lorry and a chemical storage tank, configured to lower the blocking portion together with the corresponding connector by the lifting unit to block the outside air by surrounding the connector and the corresponding connector together with the blocking portion. 11. The method of claim 10,
The chemical transport system between the chemical tank lorry and the chemical storage tank, wherein a depression is formed on the upper portion of the tank of the chemical tank lorry to be inserted by the blocking part descending, and the connector is installed in the depression. 12. The method of claim 11,
A fixing groove is formed on the outer surface of the side wall of the blocking part,
A fixing member capable of retracting and retracting is provided on the inner wall of the depression,
When the blocking part descends and is inserted into the recessed part, the fixing member protrudes and is inserted into the fixing groove to fix the blocking part from rising, a chemical transport system between a chemical tank lorry and a chemical storage tank. According to claim 1,
A unique code according to the type of chemical is provided on the side of the chemical tank lorry,
A code reading means capable of reading the code is provided on the side of the structure,
When the code read by the code reading means does not match the predetermined code, the coupling operation of the connector and the corresponding connector is stopped. According to claim 1,
The connector consists of a male connector,
The corresponding connector consists of a female connector into which the connector is inserted and coupled, a chemical transport system between a chemical tank lorry and a chemical storage tank. According to claim 1,
The corresponding connector consists of a male connector,
The connector comprises a female connector into which the corresponding connector is inserted and coupled, a chemical transport system between a chemical tank lorry and a chemical storage tank. 16. The method of claim 14 or 15,
The female connector is configured to first perform cleaning and drying of the bonding site before starting chemical transfer when the female connector and the male connector are combined, a chemical transfer system between a chemical tank lorry and a chemical storage tank. According to claim 1,
The connector includes a connector for a chemical for transferring the chemical, and a connector for an inert gas for transferring an inert gas in a direction opposite to the transfer direction of the chemical,
The corresponding connector includes a corresponding connector for chemicals for transporting the chemical, and a corresponding connector for inert gas for transporting an inert gas in a direction opposite to the transport direction of the chemical, a chemical transport system between a chemical tank lorry and a chemical storage tank .

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