CN212082816U - Detection device with function of detecting whether dry-type coupling valve is reliably connected - Google Patents

Abstract

The utility model relates to the field of petrochemical industry and loading and unloading tank cars, in particular to a detection device with the function of detecting whether a dry type coupling valve is reliably connected, which comprises a detection device body, an adapter plate, a movable shaft, a spring and a detected ring, wherein the detection device body is internally provided with a cavity for placing a detection element, the adapter plate is in threaded connection with one side of the detection device body, the lower end of the detection device body is movably connected with the movable shaft, the middle part of the movable shaft is sleeved with the spring, the upper end of the movable shaft is connected with the detected ring through a fastening screw, the fastening screw and the detected ring are both arranged in the cavity in the detection device body, the detection device detects the displacement of the movable shaft driving the detected ring according to the principle of a Hall element, thereby realizing the function of detecting whether the dry type coupling valve is reliably connected, the detection device has small volume and does not influence the normal, the safety of loading and unloading of the tank car on site is guaranteed.

Description

Detection device with function of detecting whether dry-type coupling valve is reliably connected

Technical Field

The utility model relates to a petrochemical, loading and unloading tank car field, concretely relates to detection device with detect whether reliable connection function of dry-type coupling valve.

Background

According to the requirements of safety and environmental protection, the loading mode of a dangerous chemical (oil products and chemical products) storage and transportation tank truck is improved from the prior open top loading to the prior closed bottom loading, before the tank truck enters a loading and unloading platform, an oil gas recovery oil filling riser of the loading and unloading platform needs to be reliably connected with an oil gas recovery pipeline on the tank truck, and then a dry coupling valve on a liquid phase oil filling riser is closely connected with an oil unloading valve on the tank truck, so that a complete loading and unloading loop is formed. Because the bottom truck loading belongs to closed truck loading, when the dry type coupling valve on the liquid phase loading arm is not reliably connected with the oil unloading valve on the tank truck, the valve cavity of the dry type coupling valve on the liquid phase loading arm is not communicated with the valve cavity of the oil unloading valve on the tank truck, the oil loading and unloading platform continuously conveys hazardous chemicals (oil products and chemical products) into the valve cavity of the dry type coupling valve, the hazardous chemicals (oil products and chemical products) cannot enter the oil unloading valve through the dry type coupling valve, pressure building in the dry type coupling valve is caused continuously, the severe consequence of explosion of the dry type coupling valve and the liquid phase pipeline is caused, the hazardous chemicals (oil products and chemical products) are leaked, the environment is seriously polluted and even the casualties are caused, all the dry type coupling valves existing in the market are not provided with a detection device with the function of detecting whether the dry type coupling valve is reliably connected, and.

Because the dry coupling valves used on all loading and unloading platforms in the field are not provided with a detection device with a function of detecting whether the dry coupling valves are reliably connected, namely the dry coupling valves are reliably connected with the oil unloading valves, the risk always exists when dangerous chemicals (oil products and chemical products) are loaded and unloaded in the field by completely depending on human observation. When manual operation is not in place, the dry coupling valve on the oil filling riser cannot be reliably connected with the oil discharge valve on the tank truck, and accidents happen occasionally. There is a great need in the market for a device that can solve this problem.

Disclosure of Invention

For solving the not enough of prior art existence, the utility model provides a detection device with detect whether reliable connection function of dry-type coupling valve.

The technical scheme of the utility model is that: the utility model provides a detection device with detect whether reliable connection function of dry-type coupling valve, it includes detection device body, keysets, loose axle, spring and is detected the ring, its characterized in that: the detection device comprises a detection device body and is characterized in that a cavity for placing a detection element is formed in the detection device body, the adapter plate is in threaded connection with one side of the detection device body, the lower end of the detection device body is movably connected with a movable shaft, a spring is sleeved in the middle of the movable shaft, the upper end of the movable shaft is connected with a detected ring through a fastening screw, and the fastening screw and the detected ring are both installed in the cavity in the detection device body.

Further, the detection element is a hall element.

Further, the detected ring is a magnet.

Furthermore, the longitudinal section of the adapter plate is of an inverted L shape.

Further, an indicator light is installed on the outer side of the detection device body.

The utility model discloses the beneficial effect who reaches does:

1. according to the principle of a Hall element, the displacement of the detected ring driven by the movable shaft is detected, so that the function of detecting whether the dry type coupling valve is reliably connected is realized, the safety of loading and unloading of a site tank car is guaranteed, whether the dry type coupling valve on the liquid phase loading arm is reliably connected with the oil unloading valve on the tank car can be accurately detected, a linkage signal is output to a site loading and unloading system, the connection and the matching of various dry type coupling valves can be realized, and the function of detecting whether the dry type coupling valve on the liquid phase loading arm is reliably connected with the oil unloading valve on the tank car is realized.

2. The detection device is small in size, and does not influence the normal use of the dry coupling valve; if the detection device provided by the invention has a fault, no danger can be generated, and the normal loading and unloading process can not be influenced, the detection equipment of the invention adopts an intrinsically safe circuit design (the intrinsically safe circuit is an explosion-proof circuit design which can not generate sparks or dangers even if the circuit has a fault), and has safety guarantee.

3. The detection device can output switching value signals to carry out interlocking control with a field loading and unloading vehicle system, if the dry coupling valve on the liquid phase loading arm is reliably connected with the oil unloading valve on the tank car, the dry coupling valve is smoothly opened, the detection device can output interlocking signals to the field loading and unloading vehicle system, and the field loading and unloading vehicle system starts or recovers the loading and unloading process; if the dry coupling valve on the liquid phase loading arm is not reliably connected with the oil unloading valve on the tank car, and the dry coupling valve cannot be opened smoothly or falls off and is closed in the oil loading process, the detection device can output a linkage signal to the field loading and unloading system, and the field loading and unloading system does not start or stop the loading and unloading process.

Drawings

Fig. 1 is a schematic view of the overall structure of the detecting device of the present invention.

Fig. 2 is a cross-sectional view of a longitudinal section of the detection device of the present invention.

Fig. 3 is a schematic diagram of the connection between the dry coupling valve and the detection device according to the present invention.

Fig. 4 is the structure schematic diagram of the liquefied gas bottom loading system of the utility model.

In the figure, 1, a storage tank, 2, a pump, 3, an oil gas recovery device, 4, a valve, 5, a conveying pipeline, 6, a bottom-mounted liquid phase oil filling pipe, 7, a dry coupling valve, 71, a detection device, 710, a detection device body, 711, an adapter plate, 712, a movable shaft, 713, a spring, 714, a detected ring, 715, a fastening screw, 72, a connecting rod, 73, a sleeve, 74, a handle, 75, a movable shaft detection table, 76, an indicator light, 8, a bottom-mounted gas phase oil filling pipe, 9, an oil gas coupling valve, 10, an oil gas recovery joint, 11 and an oil unloading valve.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1-4, the utility model provides a detection device with detect whether reliable connection function of dry-type coupling valve, it includes detection device body 710, adapter plate 711, loose axle 712, spring 713 and is detected ring 714, the inside of detection device body 710 is provided with the cavity of laying detection element, detection element specifically installs bottom surface under the cavity, detection element is hall element, and hall element is a magnetic sensor based on hall effect, can detect magnetic field and change with them, can use in various occasions relevant with the magnetic field.

The adapter plate 711 is in threaded connection with one side of the detection device body 710, the longitudinal section of the adapter plate is inverted-L-shaped, that is, the adapter plate is divided into two parts, namely a short plate and a long plate, the short plate is welded with the long plate, mounting holes are formed in two ends of the surface of the short plate and are mounted on the side surface of the dry-type coupling valve 7 through screws, the mounting holes mounted on the detection device body 710 are formed in the inner sides of four corners of the surface of the long plate, the mounting holes are inserted into the mounting holes through screws and are in threaded connection with the detection device body 710, the lower end of the detection device body 710 is movably connected with the movable shaft 712, the middle of the movable shaft 712 is sleeved with a spring 713, a protruding shaft for blocking the spring 713 to slide is arranged at the lower end of the movable shaft 712, the upper end of the movable shaft is connected with the detected ring 714 through a fastening screw 715, the detected ring 714 is a magnet, the fastening screw, the Hall element installed in the cavity senses the magnetic field intensity according to the position change of the magnet, namely, the dry-type coupling valve 7 is determined whether to be reliably connected according to the position change of the detected ring, the indicator lamp 76 is installed on the outer side of the detection device body 710, and the indicator lamp 76 is specifically installed in the rectangular frame on the right side of the cavity in the cross-sectional view of FIG. 2.

Specifically, the method comprises the following steps: the dry type coupling valve 7 comprises a detection device 71 positioned on the side surface of the valve body, a connecting rod 72, a sleeve 73 and a handle 74 symmetrically arranged with the connecting rod 72, wherein the tail end of the connecting rod 72 is fixedly connected with a fixture block 721, the side surface of the fixture block 721 is tightly connected with the outer side of the sleeve 73, the upper end of the sleeve 73 is provided with an outwardly convex movable shaft detection table 75, the upper end of the fixture block 721 is tightly connected with the upper end of the dry type coupling valve 7 through a vertical rod sleeved with a spring, and the connecting rod 72 can enable a connecting jaw inside the dry type coupling valve 7 to clamp the end part of the oil discharge valve 11 in the upward pulling process to reliably connect the two, because the fixture block 721 connected with the tail end of the connecting rod 72 is tightly connected with the sleeve 73, when the connecting rod 72 is pulled upward or downward, the movable shaft detection table 75 at the upper end of the sleeve 73 moves upward or downward, further pushes the movable shaft 712 in, and then whether the dry coupling valve 7 and the oil discharge valve 11 are reliably connected is detected.

The working principle is as follows: during the normal operation of loading operation, as shown in fig. 4, the safety equipment, the bottom-loading gas phase loading arm 6 and the bottom-loading liquid phase loading arm 8 need to be connected, namely before loading, the oil gas coupling valve 9 on the gas phase loading arm 8 is reliably connected with the oil gas recovery joint on the tank car, the dry type coupling valve 7 on the bottom-loading liquid phase loading arm 6 is reliably connected with the oil discharge valve 11 on the tank car, so that loading and unloading operation can be carried out, when the dry type coupling valve 7 is not reliably connected with the oil discharge valve 11, the connecting rod 72 is lifted, the movable shaft 712 of the detection device 71 is extruded by the movable shaft detection platform 75 above the dry type coupling valve sleeve 73, the spring 713 is compressed, at the moment, the detected ring 714 in the movable shaft 712 inside the detection device 71 is compressed along with the spring 713 to be far away from the detection element (hall element), it is determined that the dry type coupling valve (fig. 1-4) is not reliably connected with the oil discharge valve 11 on the tank car, the indicator lamp in, and will send the chain signal to the on-the-spot loading system, will not start or stop the oil loading and unloading operation.

The connecting rod 72 is put down, the connecting rod 72 of the dry type coupling valve 7 drives the jaws in the dry type coupling valve 7 to contract inwards, so that the connecting jaws in the dry type coupling valve clamp the end part of the oil unloading valve to be reliably connected with the oil unloading valve, the sleeve 73 of the dry type coupling valve 7 can generate vertical downward axial displacement along the direction close to the oil unloading valve 11, the movable shaft detection table 75 on the dry type coupling valve 7 is separated from the movable shaft 712 of the detection device 71 and can not compress the movable shaft 712 again, the spring 713 recovers most of the compressed length, the movable shaft 712 and the detected ring 714 inside the movable shaft 712 generate axial displacement along the direction close to the oil unloading valve 11 along with the reduction of the compression amount of the spring 713, and approach to a detection element (Hall element), and after the detection element (Hall element) detects that the detected ring 714 approaches, the dry type coupling valve 7 on the bottom loading liquid phase pipe 6 is judged to be reliably connected with the oil unloading valve 11 on the, and the indicating lamp in the detection device 71 can send out a green indicating signal and can send a linkage signal to a field loading system to start or recover oil loading and unloading operation.

The above-mentioned embodiments of the present invention do not limit the scope of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims (5)

1. The utility model provides a detection device with detect whether reliable connection function of dry-type coupling valve, it includes detection device body, keysets, loose axle, spring and is detected the ring, its characterized in that: the detection device comprises a detection device body and is characterized in that a cavity for placing a detection element is formed in the detection device body, the adapter plate is in threaded connection with one side of the detection device body, the lower end of the detection device body is movably connected with a movable shaft, a spring is sleeved in the middle of the movable shaft, the upper end of the movable shaft is connected with a detected ring through a fastening screw, and the fastening screw and the detected ring are both installed in the cavity in the detection device body.

2. The device for detecting whether a dry-type coupling valve is reliably connected according to claim 1, wherein: the detection element is a Hall element.

3. The device for detecting whether a dry-type coupling valve is reliably connected according to claim 1, wherein: the detected ring is a magnet.

4. The device for detecting whether a dry-type coupling valve is reliably connected according to claim 1, wherein: the longitudinal section of the adapter plate is of an inverted L shape.

5. The device for detecting whether a dry-type coupling valve is reliably connected according to claim 1, wherein: and an indicator lamp is installed on the outer side of the detection device body.

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