Safe ethylene storage tank

Abstract

The utility model relates to a safety type ethylene storage tank which comprises a cover plate, an air inlet and a frame body, an air entraining pipe is communicated and connected with the ethylene storage tank through a pressure transmitter, in the storage process of ethylene in the ethylene storage tank, partial vaporization occurs, the partially vaporized gas enters the air entraining pipe through the pressure transmitter and is guided to a steam heater, and the steam heater is used for heating the ethylene. By means of the arranged stability maintaining structure, when the conveying pipe hangers of different specifications penetrate through the inner side of the locking structure, pushing force is generated on the touch pressing blocks, the annularly-distributed touch pressing blocks synchronously move outwards or inwards, and therefore the conveying pipe hangers of the different specifications can be conveniently recycled. The diameter of a circle formed on the inner side of the locking structure can be flexibly varied, so that the locking structure can adapt to transmission pipes of various diameter and width specifications, is installed on the periphery of the transmission pipe, can be matched with the transmission pipe to maintain stability in the refrigerant supplementing pipe, prevents the transmission pipe from being subjected to the air pressure effect of internally transmitted air, and does not regularly shake in the refrigerant supplementing pipe in the direction.

Description

Technical Field

[0001] The utility model relates to the technical field of ethylene storage tanks, in particular to a safety ethylene storage tank. Background Art

[0002] A sealed container for storing liquid or gas is called a storage tank. Ethylene is a low-temperature liquid phase refrigerant and the simplest olefin. It is a basic chemical raw material for synthetic fibers, synthetic rubber, synthetic plastics, and synthetic ethanol. One of its storage methods is to store it in a normal pressure low-temperature storage tank, usually in a storage tank.

[0003] When optimizing existing ethylene storage tanks, most of the focus is on improving their safety and the safety and environmental friendliness of the gas during transportation. For example, the invention patent with application number CN201110143811.3 discloses "A liquid ethylene storage tank and a liquid ethylene storage and gasification system using the storage tank, and a liquid ethylene gasification method". The storage tank includes: an outer tank, an inner tank for storing liquid ethylene, an insulating material, an input pipe for inputting liquid ethylene into the inner tank, a delivery pump for pressurizing the liquid ethylene, a delivery pump well for outputting the pressurized liquid ethylene, and an output pipe for delivering the liquid ethylene to the device for use; the outer tank is a hollow flat The bottom arch is a closed container with the lower bottom surface on the ground or foundation; the inner tank is inside the outer tank, which is a hollow cylindrical flat-bottomed cup-shaped container, and an open circular ceiling is set to connect with the outer tank arch through a hanger; the insulation material fills the space between the inner and outer tanks; the input pipe passes through the outer tank arch, the insulation material and the inner tank ceiling in sequence to communicate with the inner tank; the delivery pump well passes through the inner tank ceiling, the insulation material and the outer tank arch in sequence to be connected with the output pipe outside the outer tank; the delivery pump is located below the liquid level in the delivery pump well, which can prevent the storage tank from rupturing and the cavitation of the delivery pump, and avoid the existence of cavitation in the delivery pump, which causes vibration during the operation of the pump and then damages the pump, causing economic losses and safety and environmental protection problems.

[0004] Although the above-mentioned ethylene storage tanks have certain advantages in improving their safety and the safety and environmental protection of gas during transportation, they still have certain disadvantages: ethylene is a low-temperature liquid refrigerant. During the storage process, it will partially vaporize and the tank pressure will increase. When the pressure of the ethylene storage tank is ≥1.0MPa, the safety valve will trip and release the pressure to the flare. If a refrigerant circulation system is not added, it is easy to cause refrigerant loss and waste. Utility Model Content

[0005] 1. Technical issues to be solved

[0006] In order to solve the above technical problems, the utility model provides a safe ethylene storage tank.

[0007] (II) Technical solution

[0008] Based on this, the utility model provides the following technical solutions: a safe ethylene storage tank, comprising a cover plate, an air inlet and a frame, wherein the air inlet and the cover plate are an integrated structure and are arranged through the middle thereof, and the cover plate bolts are installed on one side end of the frame; the frame comprises a frame plate, an ethylene storage tank, a pressure transmitter, an air bleed pipe, a steam heater, a pressure gauge and a refrigeration cycle system, the ethylene storage tank is installed at an internal front position of the frame plate, the pressure transmitter is located at the top position of the frame plate, the pressure transmitter is located above the ethylene storage tank, one end of the air bleed pipe is connected to the ethylene storage tank by being connected to the pressure transmitter through the frame plate, the other end of the air bleed pipe is connected to the pressure gauge, the steam heater is located beside the ethylene storage tank, one end of the refrigeration cycle system is connected to the other end of the air bleed pipe and is arranged through the inside, and the other end of the refrigeration cycle system is connected to the ethylene storage tank by passing through the front end face of the frame plate.

[0009] Preferably, the refrigeration cycle system includes a refrigerant replenishment pipe, a transmission pipe and a stabilizing structure, the transmission pipe is embedded and installed in the refrigerant replenishment pipe, the outer side of the stabilizing structure is connected to the inner wall of the refrigerant replenishment pipe, and the stabilizing structure is installed on the outer side of the refrigerant replenishment pipe.

[0010] Preferably, the stabilization structure comprises a ring frame, a locking port and a locking structure, the locking port and the ring frame are an integrated structure, the locking structure passes through the interior of the ring frame, and the locking structure is movably engaged with the locking port.

[0011] Preferably, the locking structure includes an outer arc plate, a connecting rod, a spring, a touch-pressure block and a linkage rod, the outer end of the connecting rod is fixedly connected to the outer arc plate, the spring is connected to the outer circumference of the connecting rod and movably cooperates, the touch-pressure block is fixedly connected to the front end of the connecting rod, and the two ends of the linkage rod are respectively hinged to the front end of the connecting rod.

[0012] Preferably, the left end of the frame plate is bolted to the cover plate, the front end of the ethylene storage tank is connected to the rear end of the air inlet and is internally through-set, and the air duct can transmit part of the vaporized ethylene gas from the ethylene storage tank to the steam heater, and then transmit it back to the ethylene storage tank via the refrigeration cycle system, forming a circulating operation.

[0013] Preferably, the left end of the refrigerant replenishment pipe passes through the left end surface of the frame plate, the right end of the refrigerant replenishment pipe passes through the front end surface of the frame plate, the left end of the transmission pipe is connected to one end of the air duct and is internally through-set, and the other end of the transmission pipe passes through an ethylene storage tank. The refrigerant replenishment pipe provides a placement space for the transmission pipe, and refrigerant replenishment liquid can be added to the inside of the refrigerant replenishment pipe. The stabilizing structure is installed outside the refrigerant replenishment pipe to assist in its transmission process, and will not swing continuously in the refrigerant replenishment pipe with changes in gas pressure.

[0014] Preferably, the front end of the locking structure is movably matched with the periphery of the transmission tube, the ring frame is ring-shaped, the locking opening is an empty opening on the ring frame, and the locking structure is provided with six groups, which are evenly distributed in a ring shape.

[0015] Preferably, the touch-pressure block is movably engaged with the locking port, the outer side of the outer arc plate is fixedly connected to the inner wall of the refrigerant replenishing pipe, the touch-pressure block is a rubber block with good anti-slip properties, the connecting rod has telescopic deformation properties, and the linkage rod is made of silicone with certain toughness. The touch-pressure block moves with the size of the extrusion force received under the telescopic cooperation of the connecting rod, and the touch-pressure block moves synchronously, so that the size of the circular diameter formed by it changes, which can adapt to transmission pipes of various diameters and widths, and can help the transmission pipe maintain stability inside the refrigerant replenishing pipe.

[0016] (III) Beneficial effects

[0017] Compared with the prior art, the utility model provides a safe ethylene storage tank, which has the following beneficial effects:

[0018] 1. This kind of safety ethylene storage tank is connected with the ethylene storage tank by an air bleed pipe through a pressure transmitter. During the storage process in the ethylene storage tank, part of the vaporization will occur. The part of the vaporized gas enters the air bleed pipe through the pressure transmitter and is guided to the steam heater. After being acted on, it is transmitted into the refrigeration cycle system through the lower end of the air bleed pipe, which is conducive to recovery.

[0019] 2. This kind of safety ethylene storage tank has a stabilizing structure. When transmission pipes of different specifications are hung and passed through the inner side of the locking structure, a pushing force is generated on the touch-pressure blocks. The annularly distributed touch-pressure blocks are therefore synchronously displaced outward or inward, so that the diameter of the circle formed on the inner side of the locking structure can be flexibly changed, thereby being able to adapt to transmission pipes of various diameters and widths. When installed on the outer periphery of the transmission pipe, it can cooperate with the transmission pipe to stabilize the inside of the refrigerant replenishment pipe, thereby preventing the transmission pipe from being affected by the gas pressure of the internal transmission, and shaking in no regular direction in the refrigerant replenishment pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 It is a structural schematic diagram of the frame of the utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the refrigeration cycle system of the utility model;

[0023] Figure 4 It is a structural schematic diagram of the stabilizing structure of the utility model;

[0024] Figure 5 It is a structural schematic diagram of the ring frame of the utility model;

[0025] Figure 6 It is a structural schematic diagram of the locking structure of the utility model.

[0026] In the figure: cover plate-1, air inlet-2, frame-3, frame plate-31, ethylene storage tank-32, pressure transmitter-33, air bleed pipe-34, steam heater-35, pressure gauge-36, refrigeration cycle system-37, refrigerant replenishing pipe-371, transmission pipe-372, stabilizing structure-373, ring frame-q1, positioning port-q2, locking structure-q3, outer arc plate-q31, connecting rod-q32, spring-q33, contact pressure block-q34, linkage rod-q35. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] See also Figure 1-2 A safety ethylene storage tank comprises a cover plate, an air inlet and a frame, wherein the air inlet and the cover plate are an integrated structure and are arranged through the middle thereof, and the cover plate bolts are installed on one side end of the frame; the frame comprises a frame plate, an ethylene storage tank, a pressure transmitter, an air bleed pipe, a steam heater, a pressure gauge and a refrigeration cycle system, the ethylene storage tank is installed at the inner front position of the frame plate, the pressure transmitter is located at the top position of the frame plate, the pressure transmitter is located above the ethylene storage tank, one end of the air bleed pipe is connected to the ethylene storage tank by penetrating and connecting to the pressure transmitter, and the air bleed pipe The other end is connected to the pressure gauge, the steam heater is located beside the ethylene storage tank, one end of the refrigeration cycle system is connected to the other end of the air bleed pipe and the interior is connected, the other end of the refrigeration cycle system is connected to the ethylene storage tank by passing through the front end face of the frame plate, the left end of the frame plate is bolted to the cover plate, the front end of the ethylene storage tank is connected to the rear end of the air inlet and the interior is connected, the air bleed pipe can transmit part of the ethylene gas vaporized from the ethylene storage tank to the steam heater, and then transmit it back to the ethylene storage tank through the refrigeration cycle system, forming a cyclic operation.

[0029] See also Figure 3-4A safe ethylene storage tank, a refrigeration cycle system includes a refrigerant replenishment pipe, a transmission pipe and a stabilization structure, the transmission pipe is embedded and installed in the refrigerant replenishment pipe, the outer side of the stabilization structure is connected to the inner wall of the refrigerant replenishment pipe, the stabilization structure is installed on the outer side of the refrigerant replenishment pipe, the stabilization structure includes a ring frame, a clamping port and a locking structure, the clamping port and the ring frame are an integrated structure, the locking structure passes through the inside of the ring frame, the locking structure and the clamping port are movably engaged, the left end of the refrigerant replenishment pipe passes through the left end face of the frame plate, and the right end of the refrigerant replenishment pipe passes through the On the front end face, the left end of the transmission pipe is connected to one end of the air duct and is internally through-set, and the other end of the transmission pipe passes through the ethylene storage tank. The refrigerant replenishment pipe provides a placement space for the transmission pipe, and refrigerant replenishment liquid can be added to the inside of the refrigerant replenishment pipe. The stabilizing structure is installed outside the refrigerant replenishment pipe to assist in the transmission process, and it will not swing continuously in the refrigerant replenishment pipe with changes in gas pressure. The front end of the locking structure cooperates with the outer periphery of the transmission pipe, the ring frame is ring-shaped, and the locking port is an empty port on the ring frame. The locking structure is provided with six groups, and is evenly distributed in a ring shape.

[0030] See also Figure 5 , a safety ethylene storage tank, a locking structure includes an outer arc plate, a connecting rod, a spring, a touch block and a linkage rod, the outer end of the connecting rod is fixedly connected to the outer arc plate, the spring is connected to the outer periphery of the connecting rod and movably cooperates, the touch block is fixedly connected to the front end of the connecting rod, the two ends of the linkage rod are respectively hinged to the front end of the connecting rod, the touch block is movably engaged with the positioning port, the outer side of the outer arc plate is fixedly connected to the inner wall of the refrigerant replenishment pipe, the touch block is a rubber block with good anti-slip performance, the connecting rod has telescopic deformation, the linkage rod is made of silicone with certain toughness, the touch block moves with the size of the extrusion force received under the telescopic cooperation of the connecting rod, and the touch block moves synchronously, so that the diameter of the circle formed by it changes, which is suitable for transmission pipes of various diameters and widths, and can assist the transmission pipe in maintaining stability inside the refrigerant replenishment pipe.

[0031] In summary, the outer end of the air inlet is connected to the ethylene gas outlet, and the ethylene storage tank is connected to the air inlet through the connection, which facilitates the transmission of ethylene into the ethylene storage tank for storage. The air bleed pipe is connected to the ethylene storage tank through the pressure transmitter. During the storage process of ethylene in the ethylene storage tank, part of the vaporization will occur. The partially vaporized gas enters the air bleed pipe through the pressure transmitter and is guided to the steam heater. After being acted on, it is transmitted into the refrigeration cycle system through the lower end of the air bleed pipe, which is convenient for recovery. Through the provided stabilization structure, when personnel insert the transmission pipe into the refrigerant replenishment pipe and make the other end of the transmission pipe penetrate into the ethylene storage tank When transmission tubes of different specifications are hung and passed through the inner side of the locking structure, a pushing force is generated on the touch-pressure block. The retractable connecting rod is retracted and expanded by the pressure of the touch-pressure block. When one of the touch-pressure blocks is displaced, the adjacent touch-pressure blocks are also subjected to force under the connection of the linkage rod. Therefore, the annularly distributed touch-pressure blocks are synchronously displaced outward or inward, so that the diameter of the circle formed on the inner side of the locking structure can be flexible and changeable, and thus can adapt to transmission tubes of various diameters and widths. When installed on the outer periphery of the transmission tube, it can cooperate with the transmission tube to maintain stability inside the refrigerant replenishment tube, thereby preventing the transmission tube from being affected by the gas pressure of the internal transmission and shaking irregularly in the refrigerant replenishment tube.

[0032] The control method of the present invention is to control by manually starting and closing the switch. The wiring diagram of the power element and the provision of power supply are common knowledge in the field, and the present invention is mainly used to protect mechanical devices, so the present invention will not explain the control method and wiring arrangement in detail.

[0033] The control method of the present invention is automatic control through a controller. The control circuit of the controller can be realized by simple programming by technicians in this field. The provision of power is also common knowledge in this field. The present invention is mainly used to protect mechanical devices, so the present invention will no longer explain the control method and circuit connection in detail.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A safe ethylene storage tank, characterized in that: It comprises a cover plate (1), an air inlet (2) and a frame (3), wherein the air inlet (2) and the cover plate (1) are an integrated structure and are arranged through the middle thereof, and the cover plate (1) is bolted to one side end of the frame (3); The frame (3) comprises a frame plate (31), an ethylene storage tank (32), a pressure transmitter (33), an air bleed pipe (34), a steam heater (35), a pressure gauge (36) and a refrigeration cycle system (37). The ethylene storage tank (32) is installed at a front position inside the frame plate (31). The pressure transmitter (33) is located at the top position of the frame plate (31). The pressure transmitter (33) is located above the ethylene storage tank (32). One end of the refrigeration cycle system (37) is connected to the other end of the refrigeration cycle system (37) and is connected to the ethylene storage tank (32) by penetrating and connecting to the pressure transmitter (33). The other end of the air bleed pipe (34) is connected to the pressure gauge (36). The steam heater (35) is located beside the ethylene storage tank (32). One end of the refrigeration cycle system (37) is connected to the other end of the air bleed pipe (34) and is internally through-connected. The other end of the refrigeration cycle system (37) is connected to the ethylene storage tank (32) by penetrating through the front end surface of the frame plate (31).

2. A safe ethylene storage tank according to claim 1, characterized in that: The refrigeration cycle system (37) includes a refrigerant replenishing pipe (371), a transmission pipe (372) and a stabilizing structure (373), wherein the transmission pipe (372) is embedded and installed in the refrigerant replenishing pipe (371), the outer side of the stabilizing structure (373) is connected to the inner wall of the refrigerant replenishing pipe (371), and the stabilizing structure (373) is installed on the outer side of the refrigerant replenishing pipe (371).

3. A safe ethylene storage tank according to claim 2, characterized in that: The stabilizing structure (373) comprises a ring frame (q1), a locking opening (q2) and a locking structure (q3); the locking opening (q2) and the ring frame (q1) are an integrated structure; the locking structure (q3) passes through the interior of the ring frame (q1); and the locking structure (q3) is movably engaged with the locking opening (q2).

4. A safe ethylene storage tank according to claim 3, characterized in that: The locking structure (q3) comprises an outer arc plate (q31), a connecting rod (q32), a spring (q33), a pressure block (q34) and a linkage rod (q35); the outer end of the connecting rod (q32) is fixedly connected to the outer arc plate (q31); the spring (q33) is connected around the outer periphery of the connecting rod (q32) and is movably engaged; the pressure block (q34) is fixedly connected to the front end of the connecting rod (q32); and the two ends of the linkage rod (q35) are respectively hinged to the front end of the connecting rod (q32).

5. A safe ethylene storage tank according to claim 1, characterized in that: The left end of the frame plate (31) is bolted to the cover plate (1), and the front end of the ethylene storage tank (32) is connected to the rear end of the air inlet (2) and is internally connected.

6. A safe ethylene storage tank according to claim 2, characterized in that: The left end of the refrigerant replenishment pipe (371) passes through the left end surface of the frame plate (31), the right end of the refrigerant replenishment pipe (371) passes through the front end surface of the frame plate (31), the left end of the transmission pipe (372) is connected to one end of the air duct (34) and is internally through-set, and the other end of the transmission pipe (372) passes through the ethylene storage tank (32).

7. A safety ethylene storage tank according to claim 3, characterized in that: The front end of the locking structure (q3) is movably matched with the periphery of the transmission tube (372).

8. A safe ethylene storage tank according to claim 4, characterized in that: The contact pressure block (q34) is movably engaged with the locking opening (q2), and the outer side of the outer arc plate (q31) is fixedly connected to the inner wall of the refrigerant replenishing pipe (371).

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