WO2014008714A1

WO2014008714A1 - Tank car charging and discharging system

Info

Publication number: WO2014008714A1
Application number: PCT/CN2012/081988
Authority: WO
Inventors: 卢奎刚; 孙晓鹏; 陈宝顺; 候军; 郑继承
Original assignee: 西安轨道交通装备有限责任公司
Priority date: 2012-07-11
Filing date: 2012-09-26
Publication date: 2014-01-16
Also published as: CN103538814B; CN103538814A

Abstract

A tank car charging and discharging system belongs to railway tank car pneumatic operations and remotely monitored top loading and bottom unloading. The tank car charging and discharging system comprises a charging and discharging device disposed at the bottom of a tank car and an overcharge automatic protection device (9) disposed on the top of the tank car. During medium loading on the tank car, when the medium reaches a preset height, the overcharge automatic protection device (9) provides a signal for ground equipment, and ground operation personnel decide to turn on or turn off the charging and discharging device according to the signal. The tank car charging and discharging system is high in safety, strong in reliability, and good in accuracy.

Description

One

Technical field

The invention belongs to the technical field of tanker loading and unloading, and relates to a tanker loading and unloading device, in particular to a tanker and exhausting operation and a remote monitoring system for pneumatic operation of a railway tanker and a remote monitoring type bottom loading and unloading device.

Background technique

With the rapid development of China's economy and the increasing international influence, China's railway truck products have been fully upgraded. At present, the upper and lower loading and unloading devices are manually or hydraulically controlled. With the maturity of pneumatic control technology, the railway tankers have also developed corresponding pneumatically operated products. The current layout structure and methods have the following defects:

1. The railway tanker loading and unloading device is dispersedly installed on the tanker. When the tanker encounters collision or overturning, these dispersed tanker control and protection components are easily damaged, and the safety and reliability are relatively poor.

2. The medium loading and unloading system used on the railway tanker includes an oil-discharging port and a gas-discharging valve installed at the oil-filling port. When loading or unloading the media inside the tanker, the speed of loading and unloading is slow. , work efficiency is low.

3. When the railway tanker adopts the lower oil discharge or the lower discharge oil discharge device, the oil discharge valve seat connected with the oil discharge valve at the bottom of the tank body is generally processed by steel plate, or cast or forged. For the addition of the oil drain valve seat, the current method is to open the oil outlet directly at the bottom of the tanker. The connection part (with the oil discharge valve) at the opening and the oil discharge valve is provided with a filter screen, but pneumatic control is adopted. After the valve is unloaded, due to the restriction of the bottom structure of the oil drain valve when the bottom of the oil drain valve is connected with the valve seat, the bottom of the oil draining valve is thicker (there are blind holes for connecting with the lower discharge valve), which is directly shortened. The distance between the oil supply port at the bottom of the tanker and the oil-filled valve seat is shortened, the oil discharge space is greatly reduced, the flow rate of the oil discharge port is significantly reduced, and the work efficiency is low.

In view of this, it is particularly important to ensure the accuracy, reliability and safety of the pneumatic control system in the rail tanker.

Summary of the invention

In order to solve the above technical problems existing in the background art, the present invention provides a security High, reliable and accurate tanker plus exhaust operation and remote monitoring system. The technical solution of the present invention is: The present invention provides a tanker and exhaust operation and remote monitoring system, which is special in that: the tanker plus exhaust operation and remote monitoring system includes a set at the bottom of the tanker. a row device and an overcharge automatic protection device disposed at the top of the tanker; the overcharge automatic protection device provides a signal to the ground device when the medium reaches a predetermined height during the process of adding the medium to the tanker, and the ground operator determines by the signal The opening and closing device is opened or closed.

The overcharge automatic protection device includes an overcharge protection sensor and a ground controller electrically connected to the overcharge protector; the ground controller controls the opening or closing of the addition and discharge device.

The above-mentioned adding and discharging device includes at least a first oil-discharging valve and a second oil-discharging valve which are disposed at the tanker and the oil discharge port.

The above-mentioned adding and discharging device further comprises an oil-discharging pipe connected to the first oil-discharging valve and/or the second oil-discharging valve; and the quick-connecting joint is arranged at the outlet of the oil-filling pipe.

The tanker and exhaust operation and remote monitoring system further includes a tank top safety protection device disposed at the top of the tanker, the tank top safety protection device including a top valve group disposed at the top of the tanker and a valve sleeved outside the top valve group a protective cover; the overcharge automatic protection device is disposed on the top valve block.

The valve block protection cover includes at least one vent hole, one threading hole, and one or more fixing holes adapted to the top valve block; the vent hole is provided with a sieve.

The top valve block includes a mounting cover, the mounting cover is provided with a flange, a vacuum safety valve, a vent valve and a hand hole; the vent valve is connected with the vent hole; the overcharge automatic protection device is installed at the installation The venting valve is fixedly connected to the mounting large cover by bolts; the vacuum safety valve is disposed on the mounting large cover through the flange.

The tanker and exhaust operation and remote monitoring system further includes a draining valve seat disposed at the bottom of the loading and unloading device; the fueling valve seat includes a bottom portion of the oil draining valve seat and a bottom edge of the oil draining valve seat The root portion of the extended oil discharge valve seat is extended, and the thickness of the bottom portion of the oil discharge valve seat is lower than the thickness of the root portion of the oil discharge valve seat.

The bottom of the oil-discharge valve seat includes a bottom surface of the bottom of the oil-discharge valve seat and a bottom surface of the bottom of the oil-discharge valve seat opposite to the upper surface of the bottom of the oil-discharge valve seat; the upper surface of the bottom of the oil-discharge valve seat is disposed a boss having a position corresponding to the upper surface of the bottom of the oil drain valve seat when the lower surface of the bottom portion of the oil drain valve seat is connected with other parts; the boss is one or more; When there are a plurality of stages, the plurality of bosses are evenly distributed on the upper surface of the bottom of the oil drain valve seat; the inside of the boss is provided with a thread.

The root portion of the above-mentioned oil-discharge valve seat has an arc shape, an elliptical shape or a rectangular shape in the longitudinal direction; the root portion of the oil-discharge valve seat is high in the lateral direction of the tank body and low in the lateral direction of the tank body. The root of the oil-discharge valve seat is high along the longitudinal sides of the can body and is low along the longitudinal direction of the can body; the over-charge protector is a position sensor.

The advantages of the invention are:

1. The tank top safety protection device used in the present invention comprises a top valve block disposed at the top of the tanker and a valve block protection cover attached to the top valve group; the top valve group is a vacuum safety valve that is dispersedly mounted on the tanker, The venting valve and the hand hole are integrated and installed on the large cover to ensure the reliability and safety of the railway tanker while ensuring the accuracy of the pneumatic control system. At the same time, the valve guard cover is on the top. The valve block is double protected to make the interior of the tanker safer and more reliable.

2. The tanker loading and unloading device used in the present invention is provided with two oil-discharging and oil-discharging valves at the oil and gas discharge port, and the loading and discharging speed thereof is greatly improved, and the working efficiency is high. At the same time, the invention is provided with a quick-connecting joint at the outlet of the pipe connected to the oil-discharging valve, which facilitates the rapid connection of the pipeline with other medium carriers, and further improves the working efficiency.

3. The overcharge automatic protection device used in the present invention is provided with a position sensor inside the tanker, and the position sensor monitors the internal medium of the tanker to the safe loading and unloading limit at any time. When the medium reaches the safety limit, the position sensor feeds back the monitored signal to the signal. The ground control facility (ground controller), the ground control facility closes or opens the valve. It has good automatic control and automatic protection function, which further improves the accuracy of the rail tanker. Reliability and security.

4. The oil-discharge valve seat used in the present invention requires high rigidity according to the connection position of the tank body, but the position to be connected with the lower discharge valve is required to be as low as possible, by adding and discharging the oil base, especially The internal bolt connection part of the unloading valve is provided with a boss, which divides the traditional thick thickness into a thin thickness with a boss, which eliminates excess material at the bottom of the valve seat, and is specifically represented by adding a drain valve seat. The cross-section is a relatively thin shape with a relatively thin bottom and a relatively thick root, which increases the size of the oil discharge port, increases the liquid flow inside the tanker, and ensures the working efficiency of tanker loading and discharging; meanwhile, the present invention ensures Good sealing, threaded inside the boss, the thread meets the connection between the oil drain valve seat and the lower discharge valve and does not leak the medium; Thirdly, the upper surface of the oil and gas valve seat provided by the invention is for matching the tank body The curve is formed into a circular arc surface, and the circular arc surface is high along the lateral direction of the tank body, and is low in the middle, and is high along the longitudinal sides of the tank body, and is low in the middle. Fourth, the oil and gas valve seat provided by the present invention can be cast or Forging type, and then machining the corresponding contact surface, the processing process is convenient and simple.

5. The tank top valve block used in the present invention integrates the vacuum safety valve, the vent valve and the hand hole dispersedly mounted on the tanker, and is installed on the large cover to ensure the accuracy of the pneumatic control system. At the same time, the reliability and safety of railway tankers have been greatly improved. At the same time, the present invention adds a position sensor for monitoring the filling medium inside the tank on the large cover, and automatically protects the overcharge inside the tank. The tank top valve block provided by the invention is directly installed on the top of the railway tank car and is very convenient to use.

DRAWINGS

1 is a schematic structural view of a tank top safety protection device used in the present invention;

2 is a schematic front structural view of a tank top safety protection device used in the present invention; FIG. 3 is a schematic block diagram showing the structure of a tanker loading and unloading device used in the present invention;

4 is a schematic block diagram showing the structure of an overcharge automatic protection device used in the present invention;

Figure 5 is a schematic view showing the structure of the oil-discharge valve seat used in the present invention;

Figure 6 is a plan view of Figure 4;

Figure 7 is a view taken along line A-A of Figure 4;

Figure 8 is a schematic enlarged plan view of the C-C arrow view of Figure 4;

Figure 9 is a schematic structural view of a tank top valve block used in the present invention;

among them:

1-ventilation hole; 2-threading hole; 3-mounting large cover; 4-hand hole; 5-first oil-discharge valve; 6-second oil-discharge valve; 7-fast connector; 8-plus oil Pipeline; 9-overcharge protector; 10-face controller; 11- drain valve seat bottom; 111- drain valve seat bottom upper surface; 112- drain valve seat bottom lower surface; 12-plus oil drain seat Root; 13-bolt; 14-blind hole; 15-vent valve; 16-vacuum safety valve; 17-flange; 18-vacuum safety valve seat; 19- fixing hole.

detailed description The invention provides a tanker and exhaust operation and a remote monitoring system, and the tanker and exhaust operation and remote monitoring system comprises a draining valve seat arranged at the bottom of the tanker and a loading and unloading device, and a tanker arranged from bottom to top. Overfill automatic protection device at the top, top valve block and valve block protection cover; add oil discharge valve group at the bottom of the addition and discharge device; overcharge automatic protection device is set at the top valve block; valve block protection cover is attached to the top valve On the group; the overcharge automatic protection device transmits the signal to the ground controller through the socket, and is used for closing the ground control device. The overcharge automatic protection device provides a signal to the ground device when the medium reaches a predetermined height during the process of adding the medium to the tanker, and the ground operator determines whether the addition and the closing device are turned on or off by a signal. The tank car and exhaust operation and remote monitoring system provided by the invention can control the ventilation valve and the oil discharge valve in series or in parallel, which is very convenient to use.

Referring to Figures 1 and 2, the tank top safety protection device of the present invention, the tank top safety protection device, includes a top valve block disposed at the top of the tanker and a valve block cover disposed outside the top valve block.

The valve block cover includes at least one vent hole 1, a threading hole 2, and one or more fixing holes 19 adapted to the top valve block; the vent hole 1 is provided with a screen.

The top valve block of the tanker comprises a large cover 3, the vacuum cover 16 is provided on the large cover 3, and the vent valve 15 is provided; the vent valve 15 is fixedly connected to the mounting cover 3 by bolts; the vacuum safety valve 16 is installed through the flange 17 Big cover 3 on. The tank top valve block further includes a hand hole 4 disposed on the mounting cover 3 and an overcharge protector 9; the overcharge protector 9 is a position sensor; the overcharge protector 9 is screwed to the mounting tube, and the mounting tube and the mounting are large The reserved holes of the cover 3 are welded.

The top safety protection device of the tanker is installed on the top of the railway tanker and has a protection function.

Referring to FIG. 3, the present invention adopts a tanker loading and unloading device, which is the same as the conventional tanker loading and discharging device, and includes a first oil discharge port and a first oil discharge valve 5 disposed at the oil and gas discharge port, and the conventional addition and discharge The system is different: the tank loading and unloading device used in the present invention is provided with at least a second oil-discharging valve 6 at the oil-discharging port, and the two oil-discharging valves simultaneously work to speed up the loading and unloading speed. Improve work efficiency.

At the same time, the tanker loading and unloading device used in the present invention further comprises a quick connector 7 connected at the outlet of the oil and gas pipeline, and the quick connection of the quick connector 7 with other medium carriers further improves the working efficiency.

Referring to FIG. 4, the present invention adopts an overcharge automatic protection device, and the overcharge automatic protection device includes The charger 9 and the socket 10 electrically connected to the overcharge protector 9. The overcharge protector 9 is a position sensor.

When in use, the overcharge protector 9 opens the venting valve 15 on the tanker so that the inside of the tank is connected to the atmosphere, the external device fills the tank with the medium, and the overcharge protector 9 monitors the liquid to the safe loading and unloading limit at any time. When the liquid reaches the safety limit, the overcharge protector 9 feeds the monitored signal back to the ground device through the socket 10, and the ground control device receives the position signal from the overcharge protector 9 and then closes the loading and unloading device on the tanker. , stop raising.

The drain valve seat is to be connected to the tank on the one hand and to the lower discharge valve on the other hand. The part connected to the tank body requires high rigidity, but the part connected to the lower discharge valve is required to increase the size of the oil discharge port and increase the flow rate. Therefore, the oil discharge valve seat has a thin upper portion and a thick bottom portion.

Referring to FIG. 5, FIG. 6, FIG. 7 and FIG. 8, the present invention adopts an oil-discharging valve seat for the upper part of the first oil-discharging valve 5 and the second oil-discharging valve 6, and the oil-filling valve seat includes a row and a row. The bottom portion 11 of the oil valve seat and the root portion 12 of the oil-discharge valve seat extending upward from the edge of the bottom portion 11 of the oil-discharge valve seat, in order to ensure that the oil discharge port is as large as possible, the excess of the bottom portion 11 of the oil-discharge valve seat is eliminated. The material ensures that the flow rate of the oil discharge port is as large as possible. Therefore, compared with the conventional technology, the thickness of the bottom portion 11 of the oil supply valve seat of the oil and gas valve seat used in the present invention is lower than that of the root portion 12 of the oil discharge valve seat. thickness of.

The bottom portion 11 of the oil-discharge valve seat includes a bottom surface 111 of the bottom of the oil-discharge valve seat and a bottom surface 112 of the bottom of the oil-discharge valve seat opposite to the upper surface 111 of the bottom of the oil-filled valve seat; A boss 13 is disposed, and the boss 13 is disposed at a position corresponding to the upper surface 111 of the bottom of the oil drain valve seat when the bottom surface 112 of the bottom of the oil drain valve seat is connected with other parts, and the blind hole 14 is disposed inside the boss 13 . The blind hole 14 can be used to connect a device such as a lower relief valve. In order to ensure good sealing performance, the oil-filled valve seat used in the present invention is provided with a thread inside the blind hole 14, and the thread satisfies the connection between the oil discharge valve seat and the lower discharge valve and does not leak the medium.

At least one or more of the bosses 13 are provided. If the bosses 13 are plural, the plurality of bosses 13 are evenly distributed on the upper surface 111 of the bottom of the oil discharge valve seat.

The root portion 12 of the oil-discharge valve seat is formed into a circular arc surface, an elliptical shape or a rectangular shape in the longitudinal direction thereof in order to match the curve of the tank body; and the circular arc surface is high in the lateral direction of the tank body, and is low in the middle, along the longitudinal direction of the tank body. Both sides are high and the middle is low. The oil-filled valve seat can be cast or forged, and then the corresponding contact surface is machined. Referring to Fig. 9, the invention adopts a tank top valve block, and the tank top valve group is arranged on the top of the railway tank car, and has the function of adding and discharging control.

The invention adopts a tank top valve block, the tank top valve group comprises a mounting large cover 3, the installation large cover 3 is provided with a vacuum safety valve 16 and a venting valve 15; the venting valve 15 is fixedly connected with the mounting large cover 3 by bolts The vacuum relief valve 16 is disposed on the vacuum safety valve seat 18 via the flange 17, and the vacuum safety valve seat 18 is fixed to the mounting large cover 3. The tank top valve block further includes a hand hole 4 disposed on the large cover 3 and an overcharge protector 9; the overcharge protector 9 is screwed to the mounting tube, and the mounting tube is welded to the reserved hole of the large cover 3.

Claims

claims

1. A tank truck venting pneumatic operation and remote monitoring system, characterized in that: the tank truck venting pneumatic operation and remote monitoring system includes a venting device provided at the bottom of the tanker and an automatic overcharge protection provided at the top of the tanker. Device; The automatic overcharge protection device controls the opening or closing of the charging device.

2. The tank truck venting pneumatic operation and remote monitoring system according to claim 1, characterized in that: the automatic overcharge protection device includes an overcharge protector and a ground controller electrically connected to the overcharge protector; The ground controller controls the opening or closing of the row adding device.

3. The tank truck refueling pneumatic operation and remote monitoring system according to claim 2, characterized in that: the refueling and evacuation device at least includes a first refueling and evacuation valve and a second refueling and evacuation valve arranged at the tanker refueling and evacuation port. Oil drain valve.

4. The tank truck filling and draining pneumatic operation and remote monitoring system according to claim 3, characterized in that: the filling and draining device further includes a filling and draining device connected to the first filling and draining valve and/or the second filling and draining valve. Oil drain pipe; A quick connector is provided at the outlet of the oil filling and drain pipe.

5. The tank truck venting pneumatic operation and remote monitoring system according to claim 1 or 2 or 3 or 4, characterized in that: the tank truck venting pneumatic operation and remote monitoring system further includes a tank truck arranged on the top of the tank truck. Top safety protection device, the top safety protection device of the tank car includes a top valve group provided on the top of the tank car and a valve group protection cover connected to the outside of the top valve group; the automatic overcharge protection device is provided on the top valve group.

6. The tank truck venting pneumatic operation and remote monitoring system according to claim 5, characterized in that: the valve group protection cover at least includes a ventilation hole, a threading hole, one or more valve groups that are suitable for the top Equipped with fixed holes; a filter screen is provided on the ventilation hole.

7. The tank truck venting pneumatic operation and remote monitoring system according to claim 6, characterized in that: the top valve group includes a large installation cover, and the large installation cover is provided with a flange, a vacuum safety valve, a ventilation valve and hand hole; the ventilation valve is connected with the ventilation hole; the automatic overcharge protection device is set on the large installation cover; the ventilation valve is fixedly connected to the large installation cover through bolts; the vacuum safety valve passes through the flange Set on the large mounting cover.

8. The tank truck venting pneumatic operation and remote monitoring system according to claim 7, characterized in that In: The tank truck filling and venting pneumatic operation and remote monitoring system also includes an oil filling and draining valve seat arranged at the bottom of the filling and draining device; the oil filling and draining valve seat includes the bottom of the oil filling and draining valve seat and an oil filling and draining valve seat. The bottom edge extends upward toward the root of the oil filling and draining valve seat, and the thickness of the bottom of the oil filling and draining valve seat is lower than the thickness of the root of the oil filling and draining valve seat.

9. The tank truck filling and venting pneumatic operation and remote monitoring system according to claim 8, characterized in that: the bottom of the oil filling and draining valve seat includes an upper surface of the bottom of the oil filling and draining valve seat and an upper surface of the bottom of the oil filling and draining valve seat. The lower surface of the bottom of the oil filling and discharging valve seat has an opposite surface; a boss is provided on the upper surface of the bottom of the oil filling and discharging valve seat, and the boss is provided on the bottom surface of the oil filling and discharging valve seat when it is connected to other parts. The position of the upper surface of the bottom of the oil filling and draining valve seat; the number of the bosses is one or more; when there are multiple bosses, the plurality of bosses are evenly distributed on the upper surface of the bottom of the oil filling and draining valve seat; The boss is provided with threads inside.

10. The tank truck gas filling pneumatic operation and remote monitoring system according to claim 9, characterized in that: the root of the oil filling and discharge valve seat is arc-shaped, elliptical or rectangular in the longitudinal direction; The root of the oil valve seat is high along the transverse direction of the tank body and low in the middle along the transverse direction of the tank body. The root of the oil filling and discharging valve seat is high along the longitudinal sides of the tank and low along the longitudinal middle of the tank; the overcharge protector is a position sensor.