Liquid ethylene and ethane gasification device

Abstract

The utility model discloses a liquid ethylene and ethane gasification device which comprises a tank body, a hollow pipe is arranged in the tank body, the output end of the hollow pipe downwards winds and penetrates through the tank body, a pumping assembly used for inputting liquid ethane or liquid ethylene into the hollow pipe is arranged on one side of the tank body, and the other end of the hollow pipe is communicated with a reducing pipe. The large end of the reducing pipe upwards penetrates through the tank body and is communicated with a flow meter, and the other side of the tank body is provided with a circulating conveying assembly used for pumping liquid on the upper portion of the tank body to the bottom of the tank body. The snake-shaped design of the hollow pipe enables liquid ethane or ethylene to stay for a longer time and a longer path in the tank body, the contact area between the liquid ethane or ethylene and a surrounding heat medium is increased, heat exchange is promoted, and a large amount of ethane or ethylene can be gasified, so that the gasification efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to liquid ethylene ethane gasification device technical field, concretely is a liquid ethylene ethane gasification device. BACKGROUND

[0002] Ethylene and ethane are the core raw materials of the petrochemical industry, and the ethylene or ethane gasification device is the core device of the petrochemical industry. Ethylene or ethane is stored in a low-temperature storage tank and needs to pass through a heat exchange device to realize the steps of liquid temperature rising, gasification and gaseous overheating after pressurization, thereby converting from liquid phase to gas phase and being used for production as the main petrochemical raw material.

[0003] At present, the Chinese patent with publication number discloses an ethylene oxide gasification device, which comprises a tank body, a tank body bottom provided with a discharge port, a tank body top opening, an upper head sealingly connected to the tank body top opening, an ethylene oxide liquid inlet, an ethylene oxide gas outlet, a hot water inlet and a hot water outlet respectively formed in the upper head, a gasification pipe spirally arranged in the tank body below the ethylene oxide liquid inlet, one end of the gasification pipe being communicated with the hot water inlet of the upper head, and the other end of the gasification pipe being communicated with the hot water outlet of the upper head, and a jacket surrounding the tank body outer wall and provided with the hot water inlet and the hot water outlet. The device provided by the utility model has high gasification rate, can avoid long residence time of ethylene oxide liquid material, reduce the self-polymerization side reaction, improve safety, has simple structure, is safe and reliable, and is suitable for production lines with small demand for ethylene oxide gas.

[0004] The above-mentioned ethylene oxide gasification device still has some problems in use. Ethane drops on the gasification pipe to realize gasification through heat exchange with the gasification pipe. However, when large-scale gasification of ethane is needed, the method of adding ethane drop by drop will inevitably reduce the gasification speed of ethane. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a liquid ethylene ethane gasification device to solve the problem that the method of adding ethane drop by drop will inevitably reduce the gasification speed of ethane when large-scale gasification of ethane is needed.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme.

[0007] The utility model provides a liquid ethylene ethane gasification device, including the tank body, the inside of tank body is provided with the hollow pipe, the output end of hollow pipe is down and is through tank body, one side of tank body is provided with the pumping assembly for inputting liquid ethane or liquid ethylene to the inside of hollow pipe, the other end of hollow pipe is communicated with the reducer, the big end of reducer is up and is communicated with flowmeter and is through tank body, the other side of tank body is provided with the circulating delivery assembly for pumping the liquid of tank body upper portion to tank body bottom, the other side of tank body is provided with the control assembly for controlling pumping assembly and circulating delivery assembly,

[0008] The circulating delivery assembly includes a water tank fixedly installed on the other side of the tank body, the inside of the water tank is provided with a heating assembly for heating the water source in the tank, one side of the top of the water tank is communicated with a solenoid valve, the delivery end of the solenoid valve is communicated with an input pipe, the other end of the input pipe is communicated with the middle part of the tank body, the other side of the water tank is communicated with a delivery pump, the output end of the delivery pump is communicated with a delivery pipe, one end of the delivery pipe extends to the bottom center of the tank body and penetrates the tank body upward.

[0009] Preferably, the pumping assembly includes a peristaltic pump fixedly installed on one side of the tank body, the output end of the peristaltic pump is communicated with the input end of the hollow pipe, and the input end of the peristaltic pump is communicated with a liquid inlet pipe.

[0010] Preferably, the control assembly includes a DSP controller and a temperature controller fixedly installed on the front surface of the water tank, the signal output end of the temperature controller is electrically connected to the signal input end of the DSP controller through wires, a touch screen is fixedly installed on the front surface of the tank body, the signal output end of the DSP controller is electrically connected to the signal input end of the touch screen through wires, the signal input end of the peristaltic pump is electrically connected to the signal output end of the DSP controller through wires, the solenoid valve is controlled by the DSP controller, and the signal output end of the flowmeter is electrically connected to the signal input end of the DSP controller through wires.

[0011] Preferably, the heating assembly includes a plurality of groups of electric heating rods fixedly installed on the top of the water tank, the heating end of the electric heating rod extends to the inside of the water tank, a first temperature sensor is fixedly installed on the top and the middle part of one side of the tank body, a second temperature sensor is fixedly installed on the middle part of one side of the water tank, and the signal output ends of the first temperature sensor and the second temperature sensor are electrically connected to the signal input end of the temperature controller through wires.

[0012] Preferably, the hollow pipe output end surface is communicated with a plurality of groups of linear and equidistantly arranged internal thread sleeves from bottom to top, the internal thread sleeves are all sealed and threadedly connected with threaded rings, the threaded rings are all sealed and inserted with liquid level meters, and signal output ends of the plurality of groups of liquid level meters are all electrically connected to signal input ends of the DSP controller through wires.

[0013] Preferably, one end of the conveying pipe located in the tank body is communicated with an aeration disc.

[0014] Preferably, the hollow pipe is a serpentine pipe.

[0015] Compared with the prior art, the liquid ethylene and ethane gasification device has the following beneficial effects:

[0016] The serpentine design of the hollow pipe enables the liquid ethane or ethylene to have a longer residence time and path in the tank body, increases the contact area with the surrounding heat medium, promotes heat exchange, and can gasify a large amount of ethane or ethylene, thereby improving the gasification efficiency.

[0017] The operator can intuitively set and monitor various parameters such as temperature, flow rate, liquid level, etc. through the touch screen, and the DSP controller can quickly and accurately calculate and make decisions according to the data fed back by the sensors, automatically adjust the running state of the pumping assembly, the circulating conveying assembly and the heating assembly, etc.

[0018] The liquid level meter can monitor the liquid level height of the liquid material in the pipe in real time and feed back the liquid level signal to the DSP controller, so that the operator can know the inventory of the material in time, and the DSP controller can also accurately control the pumping assembly according to the liquid level information. BRIEF DESCRIPTION OF DRAWINGS

[0019] Fig. 1 It is a structural schematic view of the liquid ethylene and ethane gasification device of the utility model;

[0020] Fig. 2 It is a sectional structural schematic view of the tank body of the utility model;

[0021] Fig. 3 It is the structure schematic view of hollow pipe in the utility model.

[0022] In the drawing:

[0023] 100, tank body;

[0024] 200, liquid inlet pipe; 201, reducing pipe; 202, hollow pipe; 203, peristaltic pump;

[0025] 300, touch screen; 301, flow meter; 302, temperature controller; 303, DSP controller; 304, first temperature sensor; 305, second temperature sensor;

[0026] 400, input pipe; 401, electromagnetic valve; 402, electric heating rod; 403, conveying pump; 404, conveying pipe; 405, aerator; 406, water tank;

[0027] 500, liquid level meter; 501, threaded ring; 502, internally threaded sleeve. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the utility model will be apparently and completely described in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the ordinary skilled in the art without creative labor fall within the protection scope of the utility model.

[0029] Please refer to Figs. 1-3 The embodiment provides a liquid ethylene ethane gasification device, which comprises a tank body 100, the inside of the tank body 100 is provided with a hollow pipe 202, the hollow pipe 202 is a serpentine pipe, wherein the serpentine pipe is a straight pipe continuously bent, is similar to a serpentine in shape, has a plurality of bending portions, can increase the length of the pipeline in limited space, thereby increasing the heat exchange area, the output end of the hollow pipe 202 is downwardly meandering and penetrates through the tank body 100, one side of the tank body 100 is provided with a pumping assembly for inputting liquid ethane or liquid ethylene into the inside of the hollow pipe 202, the other end of the hollow pipe 202 is communicated with a reducing pipe 201, the large end of the reducing pipe 201 penetrates through the tank body 100 upwards and is communicated with a flow meter 301, the other side of the tank body 100 is provided with a circulating conveying assembly for pumping liquid on the upper part of the tank body 100 to the bottom of the tank body 100, the other side of the tank body 100 is provided with a control assembly for controlling the pumping assembly and the circulating conveying assembly;

[0030] The circulating conveying assembly comprises a water tank 406 fixedly installed on the other side of the tank body 100, a heating assembly is arranged in the water tank 406 for heating the water source in the tank, an electromagnetic valve 401 is communicated with the top of one side of the water tank 406, the conveying end of the electromagnetic valve 401 is communicated with an input pipe 400, the other end of the input pipe 400 is communicated with the middle part of the tank body 100, a conveying pump 403 is communicated with the other side of the water tank 406, the output end of the conveying pump 403 is communicated with a conveying pipe 404, one end of the conveying pipe 404 extends to the bottom center of the tank body 100 and penetrates the tank body 100 upwards, through the arrangement of the hollow pipe 202 and the circulating conveying assembly, the serpentine design of the hollow pipe 202 enables the liquid ethane or ethylene to have a longer residence time and path in the tank body 100, increases the contact area with the surrounding heat medium, promotes heat exchange, and can gasify a large amount of ethane or ethylene, thereby improving the gasification efficiency, at the same time, the circulating conveying assembly can form a circulating flow of the heated water in the tank body 100, so that the heat is uniformly distributed in the whole tank body 100, ensures that the liquid ethane or ethylene can be uniformly heated at each position, avoids the local overheating or overcooling phenomenon, reduces the problems of material decomposition, coking or incomplete gasification caused by uneven temperature, and improves the product quality and production stability.

[0031] Preferably, the pumping assembly comprises a peristaltic pump 203 fixedly installed on one side of the tank body 100, the output end of the peristaltic pump 203 is communicated with the input end of the hollow pipe 202, the input end of the peristaltic pump 203 is communicated with a liquid inlet pipe 200, through the arrangement of the peristaltic pump 203, the precise flow control ability is achieved, the conveying amount and flow rate of the liquid ethane or ethylene are accurately adjusted, the material amount entering the hollow pipe 202 is stabilized, and problems such as incomplete gasification or pressure fluctuation caused by unstable material supply are avoided.

[0032] Furthermore, the control components include a DSP controller 303 and a temperature controller 302 fixedly installed on the front surface of the water tank 406. The signal output terminal of the temperature controller 302 is electrically connected to the signal input terminal of the DSP controller 303 via a wire. A touch screen 300 is fixedly installed on the front side of the tank 100. The signal output terminal of the DSP controller 303 is electrically connected to the signal input terminal of the touch screen 300 via a wire. The signal input terminal of the peristaltic pump 203 is electrically connected to the signal output terminal of the DSP controller 303 via a wire. The solenoid valve 401 is controlled by the DSP controller 303. The signal output terminal of the flow meter 301 is electrically connected to the signal input terminal of the DSP controller 303 via a wire. Through the settings of the control components, operators can intuitively set and monitor various parameters, such as temperature, flow rate, and liquid level, through the touch screen 300. The DSP controller 303 performs rapid and accurate calculations and decisions based on the data fed back from the sensors, automatically adjusting the operating status of the pumping components, circulation conveying components, and heating components, etc., to achieve precise control of the entire gasification process, improve production efficiency and product quality, and reduce the intensity of manual operation and the risk of error.

[0033] Among them, the DSP controller 303 is model TMS320F2812, the temperature controller 302 is model ANTHONE LU-926M, and the flow meter 301 is model WF-LWQ-C.

[0034] Furthermore, the heating assembly includes several sets of electric heating rods 402 fixedly installed on the top of the water tank 406. The electrical control end of the electric heating rods 402 is electrically connected to the control output end of the DSP controller 303. The heating end of the electric heating rods 402 extends into the interior of the water tank 406. A first temperature sensor 304 is fixedly installed on the top and the inner wall of one side of the tank 100. A second temperature sensor 305 is fixedly installed on the inner wall of one side of the water tank 406. The signal output ends of the first temperature sensor 304 and the second temperature sensor 305 are electrically connected to the signal input end of the temperature controller 302 through wires. By setting up the heating assembly, the water in the water tank 406 can be heated to the required temperature in a short time, providing sufficient heat for the vaporization of liquid materials.

[0035] Among them, the first temperature sensor 304 and the second temperature sensor 305 are model pt100.

[0036] It is worth mentioning that the hollow pipe 202 output end surface is communicated with several groups of linear and equidistantly arranged internal thread sleeves 502 from bottom to top, the inside of the internal thread sleeve 502 is sealingly threadedly connected with a threaded ring 501, the inside of the threaded ring 501 is sealingly inserted with a liquid level meter 500, the signal output ends of the several groups of liquid level meters 500 are electrically connected to the signal input end of the DSP controller 303 through wires, through the setting of the liquid level meter 500, the liquid level height of the liquid material in the pipe can be monitored in real time, and the liquid level signal is fed back to the DSP controller 303, so that the operator can know the inventory of the material in time, and the DSP controller 303 can also accurately control the pumping assembly according to the liquid level information, prevent the liquid level from being too high to cause the material to overflow or the liquid level from being too low to cause the gasification to be interrupted, and ensure the safe and stable operation of the device, improve the reliability and continuity of the production process.

[0037] The model of the liquid level meter 500 is Prolev500 / 500D.

[0038] It is worth mentioning that one end of the conveying pipe 404 located in the inside of the tank body 100 is communicated with an aeration disc 405, through the setting of the aeration disc 405, hot water is sprayed into the tank body 100 in the form of dispersed small bubbles, which greatly increases the contact area and contact opportunity of hot water with liquid material and other media in the tank, strengthens the heat transfer process, and makes the liquid material absorb heat more quickly and fully, and accelerates the gasification process.

[0039] Working principle;

[0040] Firstly, the water temperature and the initial pumping speed of the peristaltic pump 203 and the conveying pump 403 are set through the touch screen 300;

[0041] At the same time, the circulating conveying assembly starts to work, the DSP controller 303 controls the electric heating rod 402 to work, the water in the water tank 406 is quickly heated, when the water temperature reaches the predetermined initial temperature, the conveying pump 403 installed on the other side of the water tank 406 draws out the hot water, which is conveyed to the bottom center of the tank body 100 through the conveying pipe 404, the aeration disc 405 at the end of the conveying pipe 404 uniformly disperses the hot water into the tank body 100, so that the hot water forms a strong convection circulation in the tank body 100 from bottom to top, the heat of the hot water is fully utilized to heat the liquid material and the environment in the tank body 100, and the temperature controller 302 collects the data of the first temperature sensor 304 and the second sensor and transmits it to the DSP controller 303, so as to heat the water in the tank body 100 at constant temperature;

[0042] Subsequently, the peristaltic pump 203 is started by the DSP controller 303, and the stored liquid ethane or liquid ethylene is pumped into the hollow pipe 202 inside the tank 100 through the connected liquid inlet pipe 200, and in the process of flowing along the serpentine pipe, the liquid ethane or liquid ethylene absorbs the heat transferred by the surrounding circulating hot water in the serpentine hollow pipe 202, and gradually changes from liquid to gas, and the gas continues to flow along the hollow pipe 202, and finally is discharged from the tank 100 through the reducer pipe 201, so as to facilitate the staff to collect the gas;

[0043] The flowmeter 301 at the large end of the reducer pipe 201 connected to the other end of the hollow pipe 202 and penetrating upward through the tank 100 monitors the flow rate of the material in real time and feeds back the flow rate signal to the DSP controller 303, and the DSP controller 303 compares and analyzes the measured flow rate with the preset flow rate, and if the flow rate deviation is found, the speed of the peristaltic pump 203 is immediately adjusted to ensure that the liquid material flows stably in the hollow pipe 202 at the accurately set flow rate, and the liquid level meter 500 can accurately measure the liquid level height of the liquid material in the hollow pipe 202 and timely transmit the liquid level signal to the DSP controller 303, and the DSP controller 303 judges whether the material supply condition and the gasification process are normal according to the liquid level information, and once the liquid level abnormality is detected, the running state of the peristaltic pump 203 is immediately adjusted, such as increasing or reducing the material conveying speed.

[0044] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A liquid ethylene ethane gasification apparatus, characterized by, The application relates to a liquid ethane or liquid ethylene production device, which comprises a tank body (100), the inside of the tank body (100) is provided with a hollow pipe (202), the output end of the hollow pipe (202) is downwardly meandering and penetrates through the tank body (100), one side of the tank body (100) is provided with a pumping assembly for inputting liquid ethane or liquid ethylene into the inside of the hollow pipe (202), the other end of the hollow pipe (202) is communicated with a reducer (201), the large end of the reducer (201) penetrates through the tank body (100) upwardly and is communicated with a flowmeter (301), the other side of the tank body (100) is provided with a circulating conveying assembly for pumping liquid in the upper part of the tank body (100) to the bottom of the tank body (100), and the other side of the tank body (100) is provided with a control assembly for controlling the pumping assembly and the circulating conveying assembly. The circulating conveying assembly comprises a water tank (406) fixedly installed on the other side of the tank body (100), the inside of the water tank (406) is provided with a heating assembly for heating water in the water tank (406), one side of the top of the water tank (406) is communicated with a solenoid valve (401), the conveying end of the solenoid valve (401) is communicated with an input pipe (400), the other end of the input pipe (400) is communicated with the middle part of the tank body (100), the other side of the water tank (406) is communicated with a conveying pump (403), the output end of the conveying pump (403) is communicated with a conveying pipe (404), and one end of the conveying pipe (404) extends to the bottom center of the tank body (100) and penetrates through the tank body (100) upwardly.

2. A liquid ethylene ethane gasification device according to claim 1, wherein: The pumping assembly comprises a peristaltic pump (203) fixedly installed on one side of the tank body (100), the output end of the peristaltic pump (203) is communicated with the input end of the hollow pipe (202), and the input end of the peristaltic pump (203) is communicated with a liquid inlet pipe (200).

3. A liquid ethylene ethane gasification apparatus according to claim 2, wherein: The control assembly comprises a DSP controller (303) and a temperature controller (302) fixedly installed on the front surface of the water tank (406), the signal output end of the temperature controller (302) is electrically connected to the signal input end of the DSP controller (303) through wires, a touch screen (300) is fixedly installed on the front surface of the tank body (100), the signal output end of the DSP controller (303) is electrically connected to the signal input end of the touch screen (300) through wires, the signal input end of the peristaltic pump (203) is electrically connected to the signal output end of the DSP controller (303) through wires, the solenoid valve (401) is controlled by the DSP controller (303), and the signal output end of the flowmeter (301) is electrically connected to the signal input end of the DSP controller (303) through wires.

4. A liquid ethylene ethane gasification apparatus according to claim 3, wherein: The heating assembly comprises a plurality of groups of electric heating rods (402) fixedly installed on the top of the water tank (406), the heating ends of the electric heating rods (402) extend to the inside of the water tank (406), the top and the middle inner wall of one side of the tank body (100) are fixedly installed with a first temperature sensor (304), the middle inner wall of one side of the water tank (406) is fixedly installed with a second temperature sensor (305), and the signal output ends of the first temperature sensor (304) and the second temperature sensor (305) are electrically connected to the signal input end of the temperature controller (302) through wires.

5. A liquid ethylene ethane gasification device according to claim 3, wherein: The surface of the output end of the hollow pipe (202) is connected with a plurality of groups of linear and equidistantly arranged internal thread sleeves (502) from bottom to top, the inside of each internal thread sleeve (502) is sealingly and threadedly connected with a threaded ring (501), the inside of the threaded ring (501) is sealingly and plug-connectionally provided with a liquid level meter (500), and the signal output ends of a plurality of groups of the liquid level meters (500) are electrically connected to the signal input end of the DSP controller (303) through wires.

6. A liquid ethylene ethane gasification device according to claim 1, wherein: The conveying pipe (404) located in the inside of the tank body (100) is communicated with an aeration disc (405) at one end.

7. A liquid ethylene ethane gasification apparatus according to any one of claims 1 to 6, wherein: The hollow pipe (202) is a serpentine pipe.

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