A deteriorant separation device in an organic heat carrier

Abstract

The utility model relates to a kind of deteriorated substance separation device in organic heat carrier, including: rectifying kettle is connected with the input pipeline with first valve;Slag tank is communicated with the bottom outlet of rectifying kettle between inlet by slag pipeline with second valve;Product tank is communicated with the top outlet of rectifying kettle between inlet by product pipeline with cooler and third valve;The bottom of product tank is connected with the product output pipeline with fourth valve;Light component tank is communicated with the light component pipeline with fifth valve between inlet and product pipeline;The bottom of light component tank is connected with the light component output pipeline with sixth valve;Vacuum pumping device is communicated with rectifying kettle, slag tank, product tank and light component tank between vacuum pumping inlet;Temperature sensor is used to detect the temperature in rectifying kettle;Controller, its input end connects temperature sensor, its output end connects each valve and vacuum pumping device.

Description

Technical Field

[0001] This utility model belongs to the field of organic heat transfer fluid processing technology, specifically relating to a device for separating deteriorated substances (including solid particles, carbon deposits, polymers, colloids, etc.) in organic heat transfer fluids (such as mineral oil, synthetic oil, etc.). Background Technology

[0002] The deterioration separation device in organic heat transfer fluid is a device used to separate deterioration products (such as solid particles, carbon deposits, polymers, colloids, etc.) generated in organic heat transfer fluid due to high temperature, oxidation and other reactions.

[0003] Traditional deterioration separation devices suffer from problems such as low separation efficiency, high energy consumption, and complex operation. During separation, the light components, normal organic heat carriers, and heavy components are separated by manually judging and switching valve groups. This results in large human control errors and requires continuous monitoring by workers, which in turn leads to poor separation accuracy and waste of some normal organic heat carriers that are separated along with the light and heavy components. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a device for separating deteriorated substances in organic heat carriers, in order to improve separation accuracy and reduce waste, in light of the current state of the technology.

[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is: a device for separating deteriorated substances in an organic heat carrier, comprising:

[0006] A distillation vessel is connected to an input line for the input of the organic heat carrier to be processed, and the input line is equipped with a first valve for controlling the flow rate;

[0007] The slag discharge tank has its inlet connected to the bottom outlet of the distillation vessel via a slag discharge pipeline. It is used to receive the heavy components separated in the distillation vessel, and a second valve for controlling the flow rate is provided on the slag discharge pipeline.

[0008] The product tank has its inlet connected to the top outlet of the distillation vessel via a product pipeline, allowing the finished organic heat carrier after the separation of deteriorated substances in the distillation vessel to be collected into the product tank. The product pipeline is equipped with a cooler for reducing the temperature of the finished organic heat carrier after the separation of deteriorated substances and a third valve for controlling the flow rate. The bottom of the product tank is connected to a product outlet pipeline for outputting the finished organic heat carrier after the separation of deteriorated substances, and the product outlet pipeline is equipped with a fourth valve for controlling the flow rate.

[0009] The light component tank has its inlet connected to the product pipeline via a light component pipeline, with the connection point located downstream of the cooler and upstream of the third valve. The light component pipeline is equipped with a fifth valve for controlling the flow rate. The bottom of the light component tank is connected to a light component output pipeline for outputting light components, and the light component output pipeline is equipped with a sixth valve for controlling the flow rate.

[0010] A vacuum device, the vacuum inlet of which is connected to the distillation kettle, slag discharge tank, product tank and light component tank;

[0011] Its characteristic is that it also includes:

[0012] Temperature sensor used to detect the temperature inside the distillation vessel;

[0013] The controller has its input terminal connected to the temperature sensor and its output terminal connected to the first valve, second valve, third valve, fourth valve, fifth valve, sixth valve and vacuum device, and is used to control the operation of each valve and vacuum device according to the signal output by the temperature sensor.

[0014] Before separation, the distillation temperature of the organic heat carrier to be processed under reduced pressure fractionation is simulated through experiments. Then, the distillation temperature under actual vacuum is set on the separation device. During the separation process, the controller controls the operation of the entire separation device based on the signal output by the temperature sensor, including but not limited to the flow rate of the organic heat carrier to be processed entering the distillation kettle, the flow rate of the heavy components output from the bottom of the distillation kettle, the flow rate of the light components output from the top of the distillation kettle, the flow rate of the separated organic heat carrier, the flow rate of the light components output from the bottom of the light component tank, the flow rate of the separated organic heat carrier output from the bottom of the product tank, and the vacuum degree in the distillation kettle, slag tank, product tank, and light component tank. This ensures that the light components, heavy components, and deteriorated substances in the organic heat carrier to be processed are separated and transported to their respective light component tank, slag tank, and product tank, improving the separation accuracy and avoiding the waste caused by the normal and useful organic heat carrier being released along with the light and heavy components.

[0015] Meanwhile, this utility model eliminates the need for manual monitoring and operation, reducing errors caused by human control and lowering labor costs.

[0016] Preferably, the temperature sensor is a distributed fiber optic temperature sensor, in which the optical fibers are vertically positioned inside the distillation vessel. This enables multi-point temperature detection, further improving the accuracy of separation.

[0017] Preferably, the cooler includes an oil cooler and a first water cooler located downstream of the oil cooler. The cooling oil inlet and cooling oil outlet of the oil cooler are connected through a cooling oil loop, and a preheating vessel for storing organic heat carriers and a circulating pump are provided on the cooling oil loop.

[0018] Before separation, a portion of the user's organic heat transfer fluid can be transferred to a preheating vessel for recycling as cooling oil. The remaining organic heat transfer fluid is transferred to a distillation vessel for separation. After separation, the organic heat transfer fluid in the preheating vessel is transferred to the distillation vessel for further separation. The separated organic heat transfer fluid is then transferred back to the preheating vessel for recycling as cooling oil. Once all separation is complete, the cooling oil is discharged and returned to the user.

[0019] Furthermore, a thermometer is provided on the cooling oil ring line for detecting the temperature of the organic heat carrier therein;

[0020] The cooling oil ring line is provided with a cooling pipeline in parallel, and the cooling pipeline is provided with a second water cooler for reducing the temperature of the organic heat carrier and a seventh valve;

[0021] The thermometer and the seventh valve are respectively connected to the input and output terminals of the controller, and the controller controls the operation of the seventh valve according to the signal output by the thermometer.

[0022] This allows for selective cooling of the organic heat transfer fluid based on its temperature within the cooling oil ring.

[0023] In the above scheme, preferably, a heating line is connected in parallel to the input line of the distillation vessel, and the heating line is equipped with a heater and an eighth valve, the eighth valve being connected to the output terminal of the controller. This allows the heater to be selectively used for heating according to the temperature of the organic heat carrier to be processed.

[0024] The heaters mentioned above can be of various types, such as electric heating, oil heating, natural gas heating, etc.

[0025] Preferably, the vacuum pumping device includes:

[0026] Vacuum pump set;

[0027] A vacuum buffer tank is connected to the gas inlet of the vacuum pump unit. The upper inlet of the vacuum buffer tank is connected to the upper outlet of the slag discharge tank, product tank, and light component tank through a vacuum pipeline, and a cooling device for cooling is provided on the vacuum pipeline.

[0028] Preferably, the vacuum pump assembly includes a water ring vacuum pump and a Roots vacuum pump.

[0029] Preferably, the product output pipeline is provided with a first pump body for extracting the organic heat carrier of the finished product after the deterioration is separated, and the first pump body is located downstream of the fourth valve.

[0030] Preferably, the bottom of the slag discharge tank is connected to a heavy component output pipeline for outputting heavy components. The heavy component output pipeline is equipped with a ninth valve for controlling the flow rate and a second pump body. The ninth valve is connected to the output terminal of the controller. The first and second pump bodies can be in a normally open state, or they can be connected to the output terminal of the controller and operate under the control of the controller.

[0031] In the above embodiments, preferably, both the product tank and the light component tank are equipped with a liquid level sensor, which is connected to the input terminal of the controller to control the opening and closing of each valve based on the liquid level.

[0032] Preferably, the distillation vessel, slag discharge tank, product tank, and light component tank are all equipped with pressure sensors for detecting internal pressure, and the pressure sensors are connected to the input terminal of the controller.

[0033] Furthermore, the deteriorated substance separation device is a movable device that can be installed entirely within a container. In this invention, the length of the distillation vessel itself in the vertical direction is smaller than that of existing distillation columns. Combined with the use of a vacuum device and a heater, this allows for effective separation of the organic heat carrier to be treated, while also enabling the entire separation device to be assembled within an existing container, thus achieving mobile use for separation.

[0034] Compared with the prior art, the advantages of this utility model are as follows: The temperature sensor and controller of this utility model allow for the simulation of the distillation temperature of the organic heat carrier to be processed under reduced pressure before separation, and then the distillation temperature under actual vacuum is set on the separation device. During the separation process, the controller controls the operation of the entire separation device according to the signal output by the temperature sensor, including but not limited to the flow rate of the organic heat carrier to be processed entering the distillation kettle, the flow rate of the heavy components output from the bottom of the distillation kettle, the flow rate of the light components output from the top of the distillation kettle, the flow rate of the separated organic heat carrier, the flow rate of the light components output from the bottom of the light component tank, the flow rate of the separated organic heat carrier output from the bottom of the product tank, and the vacuum degree in the distillation kettle, slag tank, product tank, and light component tank. This ensures that the light components, heavy components, and deteriorated substances in the organic heat carrier to be processed are separated and transported to their respective light component tank, slag tank, and product tank, improving the separation accuracy and avoiding the waste caused by the normal and useful organic heat carrier being released along with the light and heavy components.

[0035] Meanwhile, this utility model eliminates the need for manual monitoring and operation, reducing errors caused by human control and lowering labor costs. Attached Figure Description

[0036] Figure 1 This is a structural schematic diagram of an embodiment of the present utility model. Detailed Implementation

[0037] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0038] like Figure 1 The image shows a preferred embodiment of a deterioration separation device in an organic heat carrier according to the present invention. The separation device is a movable device that can be installed entirely in a container, including a distillation kettle 1, a slag discharge tank 3, a product tank 4, a cooler 5, a light component tank 6, a vacuum device 7, as well as a temperature sensor, a liquid level sensor, a pressure sensor, and a controller.

[0039] The distillation vessel 1 is connected to an input line 11 for the input of the organic heat carrier to be processed. A first valve 21 for controlling the flow rate is installed on the input line 11. Simultaneously, a heating line 13 is connected in parallel to the input line 11, and a heater 14 (a conventional electric heater) and an eighth valve 28 for controlling the flow rate are installed on the heating line. In this embodiment, the distillation vessel 1, like in the prior art, is designed with a three-stage gradient heating jacket (each heating jacket has a gradient temperature set according to the difference in boiling points of the components). Each heating jacket is arranged along the vertical direction of the distillation vessel to achieve segmented heating.

[0040] When the temperature of the organic heat carrier to be processed is ≥320℃, the flow rate is controlled by the first valve 21 to control the oil temperature of the organic heat carrier to be processed in the distillation kettle 1; when the temperature of the organic heat carrier to be processed is <320℃, the eighth valve 28 is controlled to heat the organic heat carrier to be processed by the heater 14 to reach the required temperature.

[0041] The inlet of the slag discharge tank 3 is connected to the bottom outlet of the distillation vessel 1 via a slag discharge pipeline 31, which is used to receive the heavy components separated in the distillation vessel 1. The slag discharge pipeline 31 is equipped with a second valve 22 for controlling the flow rate. The bottom of the slag discharge tank 3 is connected to a heavy component output pipeline 32 for outputting the heavy components. The heavy component output pipeline 32 is equipped with a ninth valve 29 for controlling the flow rate and a second pump body 33 (which is an existing canned motor pump).

[0042] The inlet of product tank 4 is connected to the top outlet of distillation vessel 1 via product pipeline 41, allowing the finished organic heat carrier after the separation of deteriorated substances in distillation vessel 1 to be collected in product tank 4. Product pipeline 41 is equipped with a cooler 5 for reducing the temperature of the finished organic heat carrier after deterioration separation and a third valve 23 for controlling the flow rate. In this embodiment, cooler 5 includes an oil cooler 51 and a first water cooler 52 located downstream of the oil cooler 51. The cooling oil inlet and outlet of the oil cooler 51 are connected via a cooling oil loop 50, which is equipped with a preheating vessel 53 for storing the organic heat carrier, a circulating pump 54, and a thermometer 55 for detecting the temperature of the organic heat carrier within it. Simultaneously, a cooling pipeline 56 is connected in parallel on the cooling oil loop 50, and the cooling pipeline 56 is equipped with a second water cooler 57 for reducing the temperature of the organic heat carrier and a seventh valve 27 for controlling the flow rate. Before separation, a portion of the user's organic heat carrier can be transported to the preheating vessel 53 for recycling as cooling oil. Other organic heat carriers to be processed are transported to the distillation vessel 1 for separation. After separation, the organic heat carriers in the preheating vessel 53 are transported to the distillation vessel 1 for further separation. The separated organic heat carriers are then transported back to the preheating vessel 53 for use as cooling oil. After all separation is completed, the cooling oil is discharged from the preheating vessel 53 and returned to the user. The bottom of the product tank 4 is connected to a product output pipeline 42 for outputting the finished organic heat carriers after the deterioration is separated. The product output pipeline 42 is equipped with a fourth valve 24 for controlling the flow rate and a first pump body 43 for extracting the finished organic heat carriers after the deterioration is separated. The first pump body 43 is located downstream of the fourth valve 24.

[0043] The inlet of the light component tank 6 is connected to the product pipeline 41 via the light component pipeline 61, which is located downstream of the cooler 5 and upstream of the third valve 23. A fifth valve 25 is installed on the light component pipeline 61 to control the flow rate. By opening and closing the fifth valve 25 and the third valve 23, the components output from the distillation vessel 1 can be cooled and collected in the product tank or the light component tank 6. In this embodiment, a control valve 8 is installed at the connection point between the light component pipeline 61 and the product pipeline 41. A temperature detector 411 is installed on the product pipeline 41, located upstream of the oil cooler 51. The temperature detector 411 is connected to the input of a controller, and the output of the controller is connected to the control valve 8. The controller controls the operation of the control valve 8 based on the signal received from the temperature detector 411, thereby ensuring that the components are delivered to the light component tank 6 or the product tank 4.

[0044] The bottom of the light component tank 6 is connected to a light component output pipeline 62 for outputting light components, and a sixth valve 26 for controlling the flow rate is provided on the light component output pipeline 62.

[0045] The vacuum inlet of the vacuum device 7 is connected to the distillation kettle 1, the slag discharge tank 3, the product tank 4, and the light component tank 6. Specifically, the vacuum device 7 includes a vacuum pump assembly 71 and a vacuum buffer tank 72 connected to the gas inlet of the vacuum pump assembly 71. The vacuum pump assembly 71 includes existing water ring vacuum pumps and Roots vacuum pumps. The upper inlet of the vacuum buffer tank 72 is connected to the upper outlet of the slag discharge tank 3, the product tank 4, and the light component tank 6 via a vacuum pipeline 73, and a cooling device 74 for cooling is provided on the vacuum pipeline 73. The cooling device 74 can be an existing water cooler.

[0046] The aforementioned temperature sensor is an existing distributed fiber optic temperature sensor. The optical fiber in the sensor is vertically positioned inside the distillation vessel 1. Using distributed fiber optic temperature measurement (DTS) technology, it continuously monitors and extracts the temperature values ​​of multiple pre-set, fixed key points (10 key points in this embodiment) on the optical fiber. These 10 key points constitute a one-dimensional temperature sensor array, providing temperature distribution information in the vertical direction within the distillation vessel 1. Existing level sensors are also installed on the product tank 4 and the light component tank 6. Existing pressure sensors for detecting internal pressure are also installed on the distillation vessel 1, the slag discharge tank 3, the product tank 4, and the light component tank 6.

[0047] The input terminals of the aforementioned controller (PLC controller) are connected to a temperature sensor, a liquid level sensor, a pressure sensor, and a thermometer 55. The output terminals are connected to the first valve 21, the second valve 22, the third valve 23, the fourth valve 24, the fifth valve 25, the sixth valve 26, the seventh valve 27, the eighth valve 28, the ninth valve 29, the vacuum device 7, and the heater 14. This controller is used to control the operation of each valve, the vacuum device 7, and the heater 14 based on the signals output by the temperature sensors. During operation, the cooler 5 and the cooling device 74 are normally open.

[0048] Before separation, the distillation temperature of the organic heat carrier to be processed under reduced pressure fractionation is simulated through experiments. Then, the distillation temperature under actual vacuum is set on the separation device. During the separation process, the controller controls the operation of the entire separation device based on the signal output by the temperature sensor, including but not limited to the flow rate of the organic heat carrier to be processed entering the distillation kettle, the flow rate of the heavy components output from the bottom of the distillation kettle, the flow rate of the light components output from the top of the distillation kettle, the flow rate of the separated organic heat carrier, the flow rate of the light components output from the bottom of the light component tank, the flow rate of the separated organic heat carrier output from the bottom of the product tank, and the vacuum degree in the distillation kettle, slag tank, product tank, and light component tank. This ensures that the light components, heavy components, and deteriorated substances in the organic heat carrier to be processed are separated and transported to their respective light component tank, slag tank, and product tank, improving the separation accuracy and avoiding the waste caused by the normal and useful organic heat carrier being released along with the light and heavy components.

[0049] The separation accuracy of this embodiment can reach ±0.5℃, the vacuum control accuracy is ±10Pa, the energy saving is more than 25% compared with the traditional separation method, and the recovery rate of effective components (i.e. the organic heat carrier of the finished product after the separation of deteriorated substances) is increased to 98.7%.

Claims

1. A device for separating deteriorated substances in an organic heat transfer fluid, comprising: A distillation vessel (1) is connected to an input line (11) for inputting the organic heat carrier to be processed, and the input line (11) is provided with a first valve (21) for controlling the flow rate; The slag discharge tank (3) is connected to the bottom outlet of the distillation vessel (1) via a slag discharge pipeline (31) to receive the heavy components separated in the distillation vessel (1), and a second valve (22) for controlling the flow rate is provided on the slag discharge pipeline (31). The product tank (4) is connected to the top outlet of the distillation vessel (1) via a product pipeline (41) so that the finished organic heat carrier after the deterioration in the distillation vessel (1) can be collected into the product tank (4). The product pipeline (41) is equipped with a cooler (5) for reducing the temperature of the finished organic heat carrier after the deterioration and a third valve (23) for controlling the flow rate. The bottom of the product tank (4) is connected to a product output pipeline (42) for outputting the finished organic heat carrier after the deterioration. The product output pipeline (42) is equipped with a fourth valve (24) for controlling the flow rate. The light component tank (6) is connected to the product pipeline (41) via the light component pipeline (61), and the connection point is downstream of the cooler (5) and upstream of the third valve (23). The light component pipeline (61) is equipped with a fifth valve (25) for controlling the flow rate. The bottom of the light component tank (6) is connected to a light component output pipeline (62) for outputting light components. The light component output pipeline (62) is equipped with a sixth valve (26) for controlling the flow rate. The vacuum device (7) has its vacuum inlet connected to the distillation kettle (1), the slag discharge tank (3), the product tank (4), and the light component tank (6); Its features It also includes: A temperature sensor is used to detect the temperature inside the distillation vessel (1); The controller has its input end connected to the temperature sensor and its output end connected to the first valve (21), the second valve (22), the third valve (23), the fourth valve (24), the fifth valve (25), the sixth valve (26) and the vacuum device (7), and is used to control the operation of each valve and the vacuum device (7) according to the signal output by the temperature sensor.

2. The deterioration separation device according to claim 1, characterized in that: The temperature sensor is a distributed optical fiber temperature sensor, in which the optical fiber is vertically positioned inside the distillation vessel (1).

3. The deterioration separation device according to claim 1, characterized in that: The cooler (5) includes an oil cooler (51) and a first water cooler (52) located downstream of the oil cooler (51). The cooling oil inlet and cooling oil outlet of the oil cooler (51) are connected through a cooling oil loop (50), and a preheating vessel (53) for storing organic heat carriers and a circulating pump (54) are provided on the cooling oil loop (50).

4. The deterioration separation device according to claim 3, characterized in that: The cooling oil ring line (50) is equipped with a thermometer (55) for detecting the temperature of the organic heat carrier inside it; A cooling pipeline (56) is provided in parallel on the cooling oil loop (50), and a second water cooler (57) and a seventh valve (27) are provided on the cooling pipeline (56) for reducing the temperature of the organic heat carrier. The thermometer (55) and the seventh valve (27) are respectively connected to the input and output terminals of the controller. The controller controls the operation of the seventh valve (27) according to the signal output by the thermometer (55).

5. The deterioration separation device according to claim 1, characterized in that: A heating line (13) is connected in parallel to the input line (11) of the distillation vessel (1). A heater (14) and an eighth valve (28) are provided on the heating line. The eighth valve (28) is connected to the output terminal of the controller.

6. The deterioration separation device according to claim 1, characterized in that: The vacuum pumping device (7) includes: Vacuum pump unit (71); A vacuum buffer tank (72) is connected to the gas inlet of the vacuum pump unit (71). The upper inlet of the vacuum buffer tank (72) is connected to the upper outlet of the slag discharge tank (3) and the upper outlet of the product tank (4) through a vacuum pipeline (73). A cooling device (74) for cooling is provided on the vacuum pipeline (73).

7. The deterioration separation device according to claim 1, characterized in that: The product output pipeline (42) is equipped with a first pump body (43) for extracting the organic heat carrier of the finished product after the deterioration is separated. The first pump body (43) is located downstream of the fourth valve (24). The bottom of the slag discharge tank (3) is connected to a heavy component output pipeline (32) for heavy component output. The heavy component output pipeline (32) is equipped with a ninth valve (29) for controlling the flow rate and a second pump body (33). The ninth valve (29) is connected to the output end of the controller.

8. The deterioration separation device according to any one of claims 1 to 7, characterized in that: Both the product tank (4) and the light component tank (6) are equipped with level sensors, which are connected to the input terminal of the controller.

9. The deterioration separation device according to any one of claims 1 to 7, characterized in that: The distillation vessel (1), slag discharge tank (3), product tank (4) and light component tank (6) are all equipped with pressure sensors for detecting internal pressure, and the pressure sensors are connected to the input terminal of the controller.

10. The deterioration separation device according to any one of claims 1 to 7, characterized in that: The deterioration separation device is a movable device that can be installed entirely inside a container.

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