A crude benzol condenser array and method of operation thereof

Abstract

The application discloses a crude benzene condenser array and a working method thereof, and belongs to the field of crude benzene condenser arrays.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of crude benzene condensation cooling, and more particularly to a crude benzene condenser array and a working method thereof. BACKGROUND

[0002] The crude benzene condensation device is a key equipment for recycling and processing the crude benzene generated in the coking process. The most common crude benzene condensation device is to pass the cooling water generated by the circulating cooling device into a huge cooling tank to rapidly cool the condensation pipe. The existing improved crude benzene condensation device is to pass the cooling water generated by the circulating cooling device into a plurality of cooling tanks arranged side by side to rapidly cool the condensation pipe, thereby effectively improving the efficiency of crude benzene condensation. However, when the circulating cooling device fails, the cooling operation needs to be stopped immediately, and the entire circulating cooling device needs to be repaired, thereby interrupting the crude benzene condensation process and affecting the progress of the subsequent and subsequent related production processes. SUMMARY

[0003] The present application provides a crude benzene condenser array and a working method thereof, which can make the adjacent two condensers cooperate with each other during the working process by arranging the connecting pipe and the liquid exchange box between the adjacent two condensers in the condenser array. Through the circulating cooling device connected to each condenser, the cooling water in the adjacent other condensers can enter the condenser with the fault through the connecting pipe and the liquid exchange box when the circulating cooling device connected to the condenser fails, thereby ensuring the normal progress of the crude benzene condensation process.

[0004] Technical scheme: To achieve the above-mentioned purpose, the present application provides a crude benzene condenser array and a working method thereof, which comprises a condenser array, the condenser array is composed of a plurality of condensers arranged in a straight line array and arranged side by side, each condenser comprises a cold water pipe and a spiral condensation pipe, the condensation pipe is arranged in the cold water pipe along the length direction, the outer wall of the cold water pipe is provided with a cooling water inlet and a hot water outlet at both ends, respectively, the front and rear ends of the cold water pipe are connected with a front end cover and a rear end cover, respectively, the axis of the front end cover and the rear end cover is provided with a steam inlet and a distillate outlet, respectively, and the two ends of the spiral condensation pipe are connected with the steam inlet and the distillate outlet, respectively; in the plurality of arrayed condensers, the side of the end of any adjacent two cold water pipes close to the cooling water inlet is connected by a communication pipe, and each communication pipe is provided with an electromagnetic valve.

[0005] Further, in the several array distributed condensers, any continuous adjacent three cold water pipes are respectively recorded as a first cold water pipe, a second cold water pipe and a third cold water pipe, and the first cold water pipe, the second cold water pipe and the third cold water pipe are respectively provided with a first cooling water cavity, a second cooling water cavity and a third cooling water cavity; a communication pipe between the first cold water pipe and the second cold water pipe is recorded as a first communication pipe, and a communication pipe between the third cold water pipe and the second cold water pipe is recorded as a second communication pipe; a side of the middle section of the first cold water pipe and the middle section of the second cold water pipe close to each other is communicated through a first liquid exchange box, and a side of the middle section of the third cold water pipe and the middle section of the second cold water pipe close to each other is communicated through a second liquid exchange box; a first hot water outlet, a second hot water outlet and a third hot water outlet are respectively arranged on the first cold water pipe, the second cold water pipe and the third cold water pipe, and the first hot water outlet, the second hot water outlet and the third hot water outlet are respectively connected with a first flow regulating throttle, a second flow regulating throttle and a third flow regulating throttle.

[0006] Further, the first liquid exchange box is a box structure extending along the length direction of the first cold water pipe or the second cold water pipe, and the first liquid exchange box is provided with a first rotating body; when the first rotating body rotates, the first cooling water cavity and the second cooling water cavity periodically exchange liquid under the rotation of the first rotating body; the second liquid exchange box is a box structure extending along the length direction of the second cold water pipe or the third cold water pipe, and the second liquid exchange box is provided with a second rotating body; when the second rotating body rotates, the second cooling water cavity and the third cooling water cavity periodically exchange liquid under the rotation of the second rotating body.

[0007] Further, the first liquid exchange box is provided with a first column cavity along the length direction, and the axis of the first column cavity is parallel to the axis of the first cold water pipe or the second cold water pipe; the two sides of the first column cavity are respectively communicated with the first cooling water cavity and the second cooling water cavity.

[0008] The first rotating body comprises a first middle shaft coaxially arranged at the axis of the first column cavity; the two sides of the first middle shaft are symmetrically connected with a first left sector column and a first right sector column along the length direction; the upper side and the lower side between the first left sector column and the first right sector column respectively form a first upper sector exchange column cavity and a first lower sector exchange column cavity; the outer diameter of the complete cylinder formed by the first left sector column, the first right sector column, the first upper sector exchange column cavity and the first lower sector exchange column cavity is the same as the inner diameter of the first column cavity or is gap fitted.

[0009] Further, in the initial state, the outer arc surface of the first left sector column and the outer arc surface of the first right sector column respectively face the side of the first cooling water cavity and the side of the second cooling water cavity, and the upper part of the outer arc surface of the first left sector column and the outer arc surface of the first right sector column is slidingly fitted with the inner wall of the first column cavity, and the lower part of the outer arc surface of the first left sector column and the outer arc surface of the first right sector column is slidingly fitted with the inner wall of the first column cavity.

[0010] Further, the first left sector column and the first right sector column are respectively provided with a first left mounting slot and a first right mounting slot at the center of the outer arc surfaces thereof, and a first temperature sensor group and a second temperature sensor group are respectively mounted in the first left mounting slot and the first right mounting slot, wherein the first temperature sensor group detects the temperature in the first cooling water cavity and the second temperature sensor group detects the temperature in the second cooling water cavity in the initial state.

[0011] Further, the second liquid exchange box is provided with a second column cavity in the length direction, and the axis of the second column cavity is parallel to the axis of the second cooling water pipe or the third cooling water pipe, and the two sides of the second column cavity are respectively connected to the second cooling water cavity and the third cooling water cavity.

[0012] The second rotating body comprises a second middle shaft coaxial with the axis of the second column cavity, and the two sides of the second middle shaft are respectively connected to a second left sector column and a second right sector column in the length direction, and the upper and lower sides between the second left sector column and the second right sector column form a second upper sector exchange column cavity and a second lower sector exchange column cavity, and the second left sector column, the second right sector column, the second upper sector exchange column cavity and the second lower sector exchange column cavity together form a complete cylindrical body with the same outer diameter as the inner diameter of the second column cavity or a gap fit.

[0013] Further, in the initial state, the outer arc surfaces of the second left sector column and the second right sector column are respectively directed to the two sides of the second cooling water cavity, and the upper parts of the outer arc surfaces of the second left sector column and the second right sector column are in sliding fit with the inner wall of the second column cavity, and the lower parts of the outer arc surfaces of the second left sector column and the second right sector column are in sliding fit with the inner wall of the second column cavity.

[0014] Further, the second left sector column and the second right sector column are respectively provided with a second left mounting slot and a second right mounting slot at the center of the outer arc surfaces thereof, and a third temperature sensor group and a fourth temperature sensor group are respectively mounted in the second left mounting slot and the second right mounting slot, wherein the third temperature sensor group detects the temperature in the second cooling water cavity and the fourth temperature sensor group detects the temperature in the third cooling water cavity in the initial state.

[0015] Further, the control system controls the first liquid exchange box and the second liquid exchange box to work alternately, when the second circulating cooling device connected with the second cold water pipe fails, the temperature of the cooling water in the second cooling water cavity rises, at this time, the second electromagnetic valve is in the closed state, and the first electromagnetic valve is controlled by the control system to change from the closed state to the communication state, so that the cooling water in the first cooling water cavity enters the second cooling water cavity through the first communication pipe, the flow rates of the cooling water in the first cold water pipe and the second cold water pipe are same by adjusting the first throttle connected with the first hot water outlet of the first cold water pipe and the second throttle connected with the second hot water outlet of the second cold water pipe; then the power of the first circulating cooling device connected with the first cold water pipe is increased, the output power of the driving device is set according to the difference between the temperatures detected by the first temperature sensor group and the second temperature sensor group, and the driving device drives the first middle shaft to rotate.

[0016] After a period of time, the temperatures detected by the first temperature sensor group and the second temperature sensor group in the first cold water pipe and the second cold water pipe are basically same, but the temperature detected by the third temperature sensor group in the second liquid exchange box in the second cold water pipe and the temperature detected by the fourth temperature sensor group in the third cold water pipe still have a gap, if the temperature detected by the third temperature sensor group in the second cold water pipe is higher than the temperature detected by the fourth temperature sensor group in the third cold water pipe, the power of the first circulating cooling device connected with the first cold water pipe needs to be continuously increased, if the temperature detected by the third temperature sensor group in the second cold water pipe is lower than the temperature detected by the fourth temperature sensor group in the third cold water pipe, the power of the first circulating cooling device connected with the first cold water pipe needs to be reduced, and finally the temperatures in the first cold water pipe, the second cold water pipe and the third cold water pipe are equal.

[0017] Advantageous effects: the crude benzene condenser array and the working method thereof can make the two adjacent condensers cooperate with each other in the working process through the connecting pipe and the liquid exchange box arranged between the two adjacent condensers in the condenser array, the cooling water in the other condensers adjacent to the condenser connected with the circulating cooling device can enter the condenser with the fault through the connecting pipe and the liquid exchange box when the circulating cooling device connected with the condenser fails, and the normal condensation of the crude benzene is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a structure schematic view of the condenser group of the present application;

[0019] Figure 2 It is a structure schematic view of each condenser of the present application;

[0020] Figure 3Schematic diagram of the array distribution of the condenser array of the present invention;

[0021] Figure 4 This is a cross-sectional view of the assembly of the first liquid exchange box, the first cold water pipe, and the second cold water pipe of the present invention;

[0022] Figure 5 is a cross-sectional view of the first liquid exchange box of the present invention in an initial state;

[0023] Figure 6 It is a cross-sectional view of the first central axis of the first liquid exchange box of the present invention after one rotation cycle;

[0024] Figure 7 This is a cross-sectional view of the second liquid exchange box of the present invention in its initial state. DETAILED DESCRIPTION

[0025] The present invention will be further described below with reference to the accompanying drawings.

[0026] As attached Figures 1-7 As shown, a crude benzene condenser array and a working method thereof include a condenser array, such as Figure 3 As shown, the condenser array consists of several condensers distributed along a straight line and arranged in parallel with each other, as shown in FIG. Figure 2 As shown, each condenser includes a cold water pipe 2 and a spiral condensing pipe 3. The condensing pipe 3 is inside the cold water pipe 2 along the length direction. The condensing pipe 3 is coaxially fixed at the center of the cold water pipe 2. The outer wall of the cold water pipe 2 is connected at both ends with a cooling water inlet 21 and a hot water outlet 22. The cooling water inlet 21 and the hot water outlet 22 are located on the same side of the cold water pipe 2, and the cooling water inlet 21 and the hot water outlet 22 are symmetrically arranged relative to the center point of the length direction of the cold water pipe 2. The cooling water inlet 21 is connected to the cooling water output end of the circulating cooling device, and the hot water outlet 22 is connected to the hot water input end of the circulating cooling device. The front and rear ends of the cold water pipe are respectively connected with a front cover 5 and a rear cover 6, and the cooling water inlet 21 is located at Near the front cover 5, the hot water outlet 22 is located near the rear cover 6. A steam inlet 51 and a distillate outlet 52 are respectively provided at the axis of the front cover 5 and the rear cover 6. The two ends of the spiral condenser 3 are respectively connected to the steam inlet 51 and the distillate outlet 52. Several array-distributed condensers are connected to several circulating cooling devices, and the several circulating cooling devices are independent of each other. Each condenser is connected to a circulating cooling device respectively; in several array-distributed condensers, any two adjacent cold water pipes 2 are connected to each other at one end close to the cooling water inlet 21 through a connecting pipe 41, and a solenoid valve is provided in each connecting pipe 41, and the solenoid valve is in a closed state in the initial state.

[0027] like Figure 2As shown, the cooling water in the cooling water pipe 2, which is transported from the cooling water output end of the circulating cooling device through the cooling water inlet 21, exchanges heat with the crude benzene vapor in the condensing pipe 3, which is introduced through the vapor inlet 51, the crude benzene vapor is liquefied, and is discharged from the condensing pipe through the distillate outlet 52, the temperature of the cooling water in the cooling water pipe is raised, and is discharged from the hot water outlet 22, the hot water discharged from the hot water outlet 22 reenters the circulating cooling device through the hot water inlet of the circulating cooling device, is cooled in the cooling system in the circulating cooling device, and is again transported into the cooling water pipe 2 from the cooling water output end of the circulating cooling device through the cooling water inlet 21, in the arrayed condensers, when a fault occurs in one of the circulating cooling devices connected by the communication connection of any two adjacent condensers, the control system controls the electromagnetic valve in the communication pipe 41 connecting the two condensers to change from a closed state to a communication state, so that the cooling water in the condenser of the circulating cooling device without a fault enters the condenser with a fault through the communication pipe 41.

[0028] As Figure 1As shown, in the condenser distributed in several arrays, any three continuous adjacent cold water pipes 2 are respectively recorded as a first cold water pipe 2a, a second cold water pipe 2b and a third cold water pipe 2c, the first cold water pipe 2a, the second cold water pipe 2b and the third cold water pipe 2c constitute a condenser group, and the first cold water pipe 2a, the second cold water pipe 2b and the third cold water pipe 2c are respectively provided with a first cooling water cavity 23a, a second cooling water cavity 23b and a third cooling water cavity 23c; the communication pipe between the first cold water pipe 2a and the second cold water pipe 2b is recorded as a first communication pipe 41a, and the electromagnetic valve arranged in the first communication pipe 41a is recorded as a first electromagnetic valve; the communication pipe between the third cold water pipe 2c and the second cold water pipe 2b is recorded as a second communication pipe 41b, and the electromagnetic valve arranged in the second communication pipe 41b is recorded as a second electromagnetic valve; when the circulating cooling device connected with the second cold water pipe 2b fails, the cooling water cooled by the second circulating cooling device cannot enter the second cooling water cavity 23b, and the water temperature in the second cooling water cavity 23b rises; at this time, the first electromagnetic valve and the second electromagnetic valve are controlled by the control system to change from the closed state to the communication state, so that the cooling water in the first cooling water cavity 23a of the first cold water pipe 2a enters the second cooling water cavity 23b of the second cold water pipe 2b through the first communication pipe 41a, and the cooling water in the third cooling water cavity 23c of the third cold water pipe 2c enters the second cold water pipe 2b through the second communication pipe 41b; however, due to the uneven heat exchange of the cooling water in the first cold water pipe 2a and the second cold water pipe 2b, and the uneven heat exchange of the cooling water in the third cold water pipe 2c and the second cold water pipe 2b, and the paths of the cooling water in the first cold water pipe 2a and the second cold water pipe 2b are different from the paths of the cooling water in the third cold water pipe 2c and the second cold water pipe 2b, the temperature difference between the first cold water pipe 2a, the third cold water pipe 2c and the second cold water pipe 2b is large, and the flow rate of the cooling water in the first cold water pipe 2a, the second cold water pipe 2b and the third cold water pipe 2c is also different, which further increases the temperature difference between the first cold water pipe 2a, the third cold water pipe 2c and the second cold water pipe 2b.

[0029] In order to solve the above problems, as Figure 1As shown, the side of the middle section of the first cold water pipe 2a and the middle section of the second cold water pipe 2b close to each other is communicated through the first liquid exchange box 42a, and the side of the middle section of the third cold water pipe 2c and the middle section of the second cold water pipe 2b close to each other is communicated through the second liquid exchange box 42b. When the circulating cooling device communicated with the second cooling water cavity 23b fails, the water temperature of the cooling water in the second cooling water cavity 23b rises, the control system controls the first liquid exchange box 42a and the second liquid exchange box 42b to start, and the second cooling water cavity 23b exchanges heat with the first cooling water cavity 23a and the third cooling water cavity 23c respectively; the first hot water outlet 22a, the second hot water outlet 22b and the third hot water outlet 22c are respectively arranged on the first cold water pipe 2a, the second cold water pipe 2b and the third cold water pipe 2c, and the first hot water outlet 22a, the second hot water outlet 22b and the third hot water outlet 22c are all connected with the first flow regulating device, the second flow regulating device and the third flow regulating device. By adjusting the first flow regulating device, the second flow regulating device and the third flow regulating device, the flow rates of the cooling water in the first cold water pipe 2a, the second cold water pipe 2b and the third cold water pipe 2c can be equalized, so as to avoid the temperature difference between the first cold water pipe 2a and the second cold water pipe 2b or between the second cold water pipe 2b and the third cold water pipe 2c caused by different flow rates.

[0030] As shown in Figure 1 The first liquid exchange box 42a is a box structure extending along the length direction of the first cold water pipe 2a or the second cold water pipe 2b, as shown in Figure 4 The first liquid exchange box 42a is a box structure extending along the length direction of the first cold water pipe 2a or the second cold water pipe 2b, as shown in

[0031] As shown in Figure 4 The first liquid exchange box 42a is a box structure extending along the length direction of the first cold water pipe 2a or the second cold water pipe 2b, as shown in

[0032] As shown in Figure 5As shown, the first left sector column 422a and the first right sector column 423a are symmetrically connected on both sides of the first central axis 425a in the length direction, the outer arc surface of the first left sector column 422a and the outer arc surface of the first right sector column 423a are both fixedly installed with the sealing gasket 430, in the cross section of the first liquid exchange box 42a, the upper and lower sides between the first left sector column 422a and the first right sector column 423a respectively form the first upper sector exchange column cavity 424a with a sector-shaped cross section and the first lower sector exchange column cavity 426a with a sector-shaped cross section, the cross-sectional sector surface area of the first left sector column 422a and the first right sector column 423a is equal, the cross-sectional sector surface area of the first upper sector exchange column cavity 424a and the first lower sector exchange column cavity 426a is equal, and the cross-sectional sector surface area of the first left sector column 422a and the first right sector column 423a is greater than the cross-sectional sector surface area of the first upper sector exchange column cavity 424a and the first lower sector exchange column cavity 426a, the outer diameter of the complete cylinder formed by the first left sector column 422a, the first right sector column 423a, the first upper sector exchange column cavity 424a and the first lower sector exchange column cavity 426a is the same as or clearance-fitted with the inner diameter of the first column cavity 421a.

[0033] As Figure 5 shown, in the initial state, the outer arc surface of the first left sector column 422a and the outer arc surface of the first right sector column 423a respectively face the first cooling water cavity 23a side and the second cooling water cavity 23b side, and the upper part of the outer arc surface of the first left sector column 422a and the outer arc surface of the first right sector column 423a is in sliding fit with the inner wall of the first column cavity 421a, and the lower part of the outer arc surface of the first left sector column 422a and the outer arc surface of the first right sector column 423a is in sliding fit with the inner wall of the first column cavity 421a, in this state, the first upper sector exchange column cavity 424a and the first lower sector exchange column cavity 426a are in a relatively static state.

[0034] As Figure 5As shown, the outer arc surface of the first left sector column 422a and the outer arc surface of the first right sector column 423a are respectively provided with a first left mounting slot 427a and a first right mounting slot 428a at the center, and the first left mounting slot 427a and the first right mounting slot 428a are respectively provided with a first temperature sensor group 420 and a second temperature sensor group 429, and in the initial state, the first temperature sensor group 420 detects the temperature in the first cooling water cavity 23a, and the second temperature sensor group 429 detects the temperature in the second cooling water cavity 23b, and the first central shaft 425a rotates two periods, and the first temperature sensor group 420 and the second temperature sensor group 429 can respectively detect the temperature in the first cooling water cavity 23a and the second cooling water cavity 23b at this time, for example, when the first central shaft rotates two periods, the first temperature sensor group 420 is directed to the second cooling water cavity 23b, and the second temperature sensor group 429 is directed to the first cooling water cavity 23a, and at this time, the first temperature sensor group 420 detects the temperature in the second cooling water cavity 23b, and the second temperature sensor group 429 detects the temperature in the first cooling water cavity 23a.

[0035] As shown in Figure 4 The second liquid exchange box 42b is a box structure extending along the length direction of the second cooling water pipe 2b or the third cooling water pipe 2c, and the second liquid exchange box 42b is provided with a second rotating body, and when the second rotating body rotates, the second cooling water cavity 23b and the third cooling water cavity 23c are periodically exchanged under the rotation of the second rotating body.

[0036] As shown in Figure 4 The second liquid exchange box 42b is a box structure extending along the length direction of the second cooling water pipe 2b or the third cooling water pipe 2c, and the second liquid exchange box 42b is provided with a second rotating body, and when the second rotating body rotates, the second cooling water cavity 23b and the third cooling water cavity 23c are periodically exchanged under the rotation of the second rotating body.

[0037] As shown in Figure 7As shown, the second left sector column 422b and the second right sector column 423b are connected to the second central shaft 425b on both sides in the length direction and are symmetrical, the outer arc surface of the second left sector column 422b and the outer arc surface of the second right sector column 423b are both fixedly installed with a sealing gasket 430, in the cross section of the second liquid exchange box 42b, the upper and lower sides between the second left sector column 422b and the second right sector column 423b respectively form a second upper sector exchange column cavity 424b with a sector-shaped cross section and a second lower sector exchange column cavity 426b with a sector-shaped cross section, the cross-sectional sector surface area of the second left sector column 422b and the second right sector column 423b is equal, the cross-sectional sector surface area of the second upper sector exchange column cavity 424b and the second lower sector exchange column cavity 426b is equal, and the cross-sectional sector surface area of the second left sector column 422b and the second right sector column 423b is greater than the cross-sectional sector surface area of the second upper sector exchange column cavity 424b and the second lower sector exchange column cavity 426b, the outer diameter of the complete cylinder formed by the second left sector column 422b, the second right sector column 423b, the second upper sector exchange column cavity 424b and the second lower sector exchange column cavity 426b is the same as or clearance fit with the inner diameter of the second column cavity 421b.

[0038] As Figure 7 shown, in the initial state, the outer arc surface of the second left sector column 422b and the outer arc surface of the second right sector column 423b respectively face the two sides of the second cooling water cavity 23b and the two sides of the third cooling water cavity 23c, and the upper part of the outer arc surface of the second left sector column 422b and the outer arc surface of the second right sector column 423b is in sliding fit with the inner wall of the second column cavity 421b, and the lower part of the outer arc surface of the second left sector column 422b and the outer arc surface of the second right sector column 423b is in sliding fit with the inner wall of the second column cavity 421b, in this state, the second upper sector exchange column cavity 424b and the second lower sector exchange column cavity 426b are in a relatively static state.

[0039] As Figure 7As shown, the outer arc surface of the second left sector column 422b and the outer arc surface of the second right sector column 423b are respectively provided with a second left mounting groove 427b and a second right mounting groove 428b at the center, and the second left mounting groove 427b and the second right mounting groove 428b are respectively provided with a second temperature sensor group 429 and a third temperature sensor group 431, and in the initial state, the second temperature sensor group 429 detects the temperature in the second cooling water cavity 23b, and the third temperature sensor group 431 detects the temperature in the third cooling water cavity 23c, and every two cycles of rotation of the second middle shaft 425b, the second temperature sensor group 429 and the third temperature sensor group 431 can respectively detect the temperature in the second cooling water cavity 23b and the third cooling water cavity 23c at this time, for example, when the second middle shaft rotates two cycles, the second temperature sensor group 429 is directed to the third cooling water cavity 23c, and the third temperature sensor group 431 is directed to the second cooling water cavity 23b, at this time, the second temperature sensor group 429 detects the temperature in the third cooling water cavity 23c, and the third temperature sensor group 431 detects the temperature in the second cooling water cavity 23b.

[0040] Since the first liquid exchange box 42a and the second liquid exchange box 42b have the same structure and the same working process, the working process of the first liquid exchange box 42a and the second liquid exchange box 42b will be mainly introduced below by taking the first liquid exchange box 42a as an example, and the working principle of the first liquid exchange box 42a is as follows:

[0041] As shown in Figure 5 When the second cooling water pipe 2b connected to the circulating cooling device fails, the cooling water cooled by the second circulating cooling device cannot enter the second cooling water cavity 23b, and the temperature of the cooling water in the second cooling water cavity 23b will rise sharply; at this time, the second temperature sensor group 429 sends the temperature data collected in the second cooling water cavity 23b to the control system, and the first temperature sensor group 420 sends the temperature data collected in the first cooling water cavity 23a to the control system, the control system starts the driving device to drive the first middle shaft 425a to rotate, and the control system sets the rotating speed of the driving device driving the first middle shaft 425a to rotate according to the temperature difference detected by the first temperature sensor group 420 and the second temperature sensor group 429, the greater the temperature difference detected by the first temperature sensor group 420 and the second temperature sensor group 429, the faster the rotating speed of the driving device driving the first middle shaft 425a to rotate, and it is assumed that in the initial state, there is no liquid in the first upper sector exchange column cavity 424a and the first lower sector exchange column cavity 426a.

[0042] As shown in Figure 5As shown, when the first middle shaft 425 rotates one cycle, the first left sector column 422a and the first right sector column 423a rotate by an angle of 90°, the outer arc surface of the first left sector column 422a is in sliding fit with the lower end of the inner wall of the first column cavity 421a, the outer arc surface of the first right sector column 423a is in sliding fit with the upper end of the inner wall of the first column cavity 421a, the first upper sector exchange column cavity 424a is in communication with the second cooling water cavity 23b, the cooling water in the second cooling water cavity 23b fills the first upper sector exchange column cavity 424a, and the cooling water filling the first upper sector exchange column cavity 424a rotates with the first upper sector exchange column cavity 424a; the first lower sector exchange column cavity 426a is in communication with the first cooling water cavity 23a, the cooling water in the first cooling water cavity 23a fills the first lower sector exchange column cavity 426a, and the cooling water filling the first lower sector exchange column cavity 426a rotates with the first lower sector exchange column cavity 426a.

[0043] As shown, Figure 6 As shown, when the first middle shaft 425 rotates two cycles, the first left sector column 422a and the first right sector column 423a rotate by an angle of 180°, the outer arc surface of the first left sector column 422a faces the side of the first cooling water cavity 23a, and the outer arc surface of the first right sector column 423a faces the side of the second cooling water cavity 23b, at this time, the positions of the first lower sector exchange column cavity 426a and the first upper sector exchange column cavity 424a are interchanged relative to the initial state, that is, the first lower sector exchange column cavity 426a is located above the first upper sector exchange column cavity 424a, and the first lower sector exchange column cavity 426a and the first upper sector exchange column cavity 424a are again in a relatively sealed state, the cooling water filling the first upper sector exchange column cavity 424a in the second cooling water cavity 23b is still in the closed space formed by the first upper sector exchange column cavity 424a again; the cooling water filling the first lower sector exchange column cavity 426a in the first cooling water cavity 23a is still in the closed space formed by the first lower sector exchange column cavity 426a again.

[0044] After the first middle shaft 425 rotates three cycles, the angle of rotation of the first left sector column 422a and the first right sector column 423a is 270°, the outer arc surface of the first left sector column 422a is in sliding fit with the upper end of the inner wall of the first column cavity 421a, the outer arc surface of the first right sector column 423a is in sliding fit with the lower end of the inner wall of the first column cavity 421a, the first upper sector exchange column cavity 424a is in communication with the first cooling water cavity 23a, the cooling water of the second cooling water cavity 23b filled in the first upper sector exchange column cavity 424a mixes with the cooling water in the first cooling water cavity 23a and neutralizes the temperature, and the mixed cooling water in the first cooling water cavity 23a fills the first upper sector exchange column cavity 424a, and the cooling water filling the first upper sector exchange column cavity 424a rotates with the first upper sector exchange column cavity 424a; the first lower sector exchange column cavity 426a is in communication with the second cooling water cavity 23b, the cooling water of the first cooling water cavity 23a filled in the first lower sector exchange column cavity 426a mixes with the cooling water in the second cooling water cavity 23b and neutralizes the temperature, and the mixed cooling water in the second cooling water cavity 23b fills the first lower sector exchange column cavity 426a, and the cooling water filling the first lower sector exchange column cavity 426a rotates with the first lower sector exchange column cavity 426a.

[0045] After the first middle shaft 425 rotates four cycles, the angle of rotation of the first left sector column 422a and the first right sector column 423a is 360°, the outer arc surface of the first left sector column 422a faces the side of the second cooling water cavity 23b, and the outer arc surface of the first right sector column 423a faces the side of the first cooling water cavity 23a, at this time, the positions of the first lower sector exchange column cavity 426a and the first upper sector exchange column cavity 424a are consistent with the initial state, that is, the first lower sector exchange column cavity 426a is located below the first upper sector exchange column cavity 424a, and the first lower sector exchange column cavity 426a and the first upper sector exchange column cavity 424a are again in a relatively sealed state, and the cooling water filling the first upper sector exchange column cavity 424a in the first cooling water cavity 23a is still in the closed space formed by the first upper sector exchange column cavity 424a again; the cooling water filling the first lower sector exchange column cavity 426a in the second cooling water cavity 23b is still in the closed space formed by the first lower sector exchange column cavity 426a again.

[0046] More cycles of rotation of the first middle shaft 425 will sequentially repeat the entire process of the above four cycles, so as to realize the exchange of the cooling water in the first cooling water cavity 23a and the second cooling water cavity 23b, so as to make the temperatures in the first cooling water cavity 23a and the second cooling water cavity 23b tend to be the same.

[0047] The working method of the crude benzene condenser array is briefly introduced by taking the condenser group composed of the first cold water pipe 2a, the second cold water pipe 2b and the third cold water pipe 2c as an example; the control system controls the first liquid exchange box 42a connected with the first cold water pipe 2a and the second cold water pipe 2b and the second liquid exchange box 42b connected with the third cold water pipe 2c and the second cold water pipe 2b to work alternately, that is, when the first liquid exchange box 42a works, the second liquid exchange box 42b does not work; when the temperature data in the second cooling water cavity 23b transmitted by the second temperature sensor group 429 to the control system increases for a short time and is higher than the temperature in the first cooling water cavity 23a transmitted by the first temperature sensor group 420 to the control system, the control system determines that the second circulating cooling device connected with the second cold water pipe 2b fails, the cooling water cooled by the second circulating cooling device cannot enter the second cooling water cavity 23b, and the water temperature of the cooling water in the second cooling water cavity 23b rises; at this time, the second electromagnetic valve is still in the closed state, and the temperature of the cooling water in the third cooling water cavity 23c will be used as a reference value for subsequent adjustment; the control system controls the first electromagnetic valve to change from the closed state to the communication state, so that the cooling water in the first cooling water cavity 23a of the first cold water pipe 2a enters the second cooling water cavity 23b of the second cold water pipe 2b through the first communication pipe 41a; by adjusting the first throttle connected to the first hot water outlet of the first cold water pipe 2a and the second throttle connected to the second hot water outlet of the second cold water pipe 2b, the flow rates of the cooling water in the first cold water pipe 2a and the second cold water pipe 2b are the same; then the power of the first circulating cooling device connected with the first cold water pipe 2a is increased, so that the temperature of the cooling water cooled by the first circulating cooling device is lower; then the output power of the driving device is set according to the difference between the temperatures of the first cold water pipe and the second cold water pipe detected by the first temperature sensor group 420 and the second temperature sensor group 429 respectively; then the control system starts the driving device, and the driving device drives the first middle shaft 425a to rotate; the greater the output power of the driving device is set, the faster the first middle shaft 425a rotates;

[0048] After a period of time, the temperatures detected by the first temperature sensor group 420 and the second temperature sensor group 429 in the first cold water pipe 2a and the second cold water pipe 2b are substantially the same, but the temperature detected by the third temperature sensor group 431 in the second cold water pipe 2b and the temperature detected by the fourth temperature sensor group 432 in the third cold water pipe 2c in the second liquid exchange tank 24b still have a gap. If the temperature detected by the third temperature sensor group 431 in the second cold water pipe 2b is higher than the temperature detected by the fourth temperature sensor group 432 in the third cold water pipe 2c, the power of the first circulating cooling device in communication with the first cold water pipe 2a needs to be continuously increased. If the temperature detected by the third temperature sensor group 431 in the second cold water pipe 2b is lower than the temperature detected by the fourth temperature sensor group 432 in the third cold water pipe 2c, the power of the first circulating cooling device in communication with the first cold water pipe 2a needs to be reduced. Finally, the temperatures in the first cold water pipe 2a, the second cold water pipe 2b and the third cold water pipe 2c are equalized.

[0049] By using temperature sensors with higher sensitivity, the error value of the temperatures in the first cold water pipe 2a, the second cold water pipe 2b and the third cold water pipe 2c in the present solution can be further reduced.

[0050] The above is the preferred embodiment of the present application. It should be pointed out that for those skilled in the art, without departing from the principles of the present application, a number of improvements and refinements can be made, and these improvements and refinements should also be considered as falling within the scope of the present application.

Claims

1. A crude benzene condenser array, characterized by: The application relates to a condenser array, which comprises a plurality of condensers arranged in a linear array and arranged side by side, each of the condensers comprising a cold water pipe (2) and a spiral condensing pipe (3) arranged in the cold water pipe (2) along the length direction, the outer wall of the cold water pipe (2) being provided with a cooling water inlet (21) and a hot water outlet (22) at two ends respectively, the front end of the cold water pipe being connected with a front end cover (5), the rear end of the cold water pipe being connected with a rear end cover (6), the axis of the front end cover (5) being provided with a steam inlet (51), the axis of the rear end cover (6) being provided with a distillate outlet (52), and the two ends of the spiral condensing pipe (3) being connected with the steam inlet (51) and the distillate outlet (52) respectively; in the plurality of arrayed condensers, the two ends of any two adjacent cold water pipes (2) close to the cooling water inlets (21) are connected through communication pipes (41) on the side close to each other, and each of the communication pipes (41) is provided with an electromagnetic valve. In the plurality of arrayed condensers, any three continuously adjacent cold water pipes (2) are denoted as a first cold water pipe (2a), a second cold water pipe (2b) and a third cold water pipe (2c) respectively, the first cold water pipe (2a), the second cold water pipe (2b) and the third cold water pipe (2c) being provided with a first cooling water cavity (23a), a second cooling water cavity (23b) and a third cooling water cavity (23c) respectively; the communication pipe between the first cold water pipe (2a) and the second cold water pipe (2b) is denoted as a first communication pipe (41a), the communication pipe between the third cold water pipe (2c) and the second cold water pipe (2b) is denoted as a second communication pipe (41b), the middle section of the first cold water pipe (2a) and the middle section of the second cold water pipe (2b) are connected through a first liquid exchange box (42a) on the side close to each other, and the middle section of the third cold water pipe (2c) and the middle section of the second cold water pipe (2b) are connected through a second liquid exchange box (42b) on the side close to each other; the first cold water pipe (2a), the second cold water pipe (2b) and the third cold water pipe (2c) are provided with a first hot water outlet (22a), a second hot water outlet (22b) and a third hot water outlet (22c) respectively, and the first hot water outlet (22a), the second hot water outlet (22b) and the third hot water outlet (22c) are respectively connected with a first flow-adjustable throttler, a second flow-adjustable throttler and a third flow-adjustable throttler. The plurality of arrayed condensers are connected with a plurality of circulating cooling devices, and the plurality of circulating cooling devices are independent of each other, and each condenser is connected with one circulating cooling device.

2. A crude benzol condenser array according to claim 1, characterized in that: The first liquid exchange box (42a) is a box structure extending along the length direction of the first cold water pipe (2a) or the second cold water pipe (2b), the first liquid exchange box (42a) is provided with a first rotating body, and the first cooling water cavity (23a) and the second cooling water cavity (23b) are periodically exchanged under the rotation of the first rotating body. The second liquid exchange box (42b) is a box structure extending along the length direction of the second cold water pipe (2b) or the third cold water pipe (2c), and a second rotating body is arranged in the second liquid exchange box (42b), and when the second rotating body rotates, the second cooling water cavity (23b) and the third cooling water cavity (23c) periodically exchange liquid under the rotation of the second rotating body.

3. A crude benzol condenser array according to claim 2, characterised in that: The first liquid exchange box (42a) is provided with a first column cavity (421a) along the length direction, the axis of the first column cavity (421a) is parallel to the axis of the first cold water pipe (2a) or the second cold water pipe (2b), and the two sides of the first column cavity (421a) are respectively connected with the first cooling water cavity (23a) and the second cooling water cavity (23b); The first rotating body comprises a first middle shaft (425a) coaxially arranged at the axis of the first column cavity (421a), and a first left sector column (422a) and a first right sector column (423a) are symmetrically connected on the two sides of the first middle shaft (425a) along the length direction, and the upper side and the lower side between the first left sector column (422a) and the first right sector column (423a) form a first upper sector exchange column cavity (424a) and a first lower sector exchange column cavity (426a) respectively, and the outer diameter of the complete cylinder formed by the first left sector column (422a), the first right sector column (423a), the first upper sector exchange column cavity (424a) and the first lower sector exchange column cavity (426a) is the same as or gap-fitted with the inner diameter of the first column cavity (421a).

4. A crude benzol condenser array according to claim 3, characterised in that: In the initial state, the outer arc surface of the first left sector column (422a) and the outer arc surface of the first right sector column (423a) respectively face the first cooling water cavity (23a) side and the second cooling water cavity (23b) side, and the upper part of the outer arc surface of the first left sector column (422a) and the outer arc surface of the first right sector column (423a) is in sliding fit with the inner wall of the first column cavity (421a), and the lower part of the outer arc surface of the first left sector column (422a) and the outer arc surface of the first right sector column (423a) is in sliding fit with the inner wall of the first column cavity (421a).

5. A crude benzol condenser array according to claim 3, wherein: First left mounting grooves (427a) and first right mounting grooves (428a) are respectively arranged at the centers of the outer arc surfaces of the first left sector column (422a) and the first right sector column (423a), and first temperature sensor groups (420) and second temperature sensor groups (429) are respectively arranged in the first left mounting grooves (427a) and the first right mounting grooves (428a), and in the initial state, the first temperature sensor groups (420) detect the temperature in the first cooling water cavity (23a), and the second temperature sensor groups (429) detect the temperature in the second cooling water cavity (23b).

6. A crude benzol condenser array according to claim 5, characterized in that: The second liquid exchange box (42b) is provided with a second column cavity (421b) in the length direction, the axis of the second column cavity (421b) is parallel to the axis of the second cold water pipe (2b) or the third cold water pipe (2c), and the two sides of the second column cavity (421b) are respectively communicated with the second cooling water cavity (23b) and the third cooling water cavity (23c); The second rotating body comprises a second middle shaft (425b) coaxially arranged at the axis of the second column cavity (421b), and the two sides of the second middle shaft (425b) are symmetrically connected with a second left sector column (422b) and a second right sector column (423b) in the length direction, the upper side and the lower side between the second left sector column (422b) and the second right sector column (423b) form a second upper sector exchange column cavity (424b) and a second lower sector exchange column cavity (426b) respectively, and the outer diameter of the complete cylinder formed by the second left sector column (422b), the second right sector column (423b), the second upper sector exchange column cavity (424b) and the second lower sector exchange column cavity (426b) is the same as or gap-fitted with the inner diameter of the second column cavity (421b).

7. A crude benzol condenser array according to claim 6, characterized in that: In the initial state, the outer arc surfaces of the second left sector column (422b) and the second right sector column (423b) are respectively directed to the two sides of the second cooling water cavity (23b) and the two sides of the second cooling water cavity (23b), and the upper parts of the outer arc surfaces of the second left sector column (422b) and the second right sector column (423b) are in sliding fit with the inner wall of the second column cavity (421b), and the lower parts of the outer arc surfaces of the second left sector column (422b) and the second right sector column (423b) are in sliding fit with the inner wall of the second column cavity (421b).

8. A crude benzol condenser array according to claim 6, characterized in that: Second left mounting grooves (427b) and second right mounting grooves (428b) are respectively arranged at the centers of the outer arc surfaces of the second left sector column (422b) and the second right sector column (423b), third temperature sensor groups (431) and fourth temperature sensor groups (432) are respectively arranged in the second left mounting grooves (427b) and the second right mounting grooves (428b), in the initial state, the third temperature sensor groups (431) detect the temperature in the second cooling water cavity (23b), and the fourth temperature sensor groups (432) detect the temperature in the third cooling water cavity (23c).

9. A method of operating an array of crude benzol condensers as claimed in claim 8, characterised in that: The control system controls the first liquid exchange box (42a) and the second liquid exchange box (42b) to work alternately. When the second circulating cooling device connected with the second cooling water pipe (2b) fails, the temperature of the cooling water in the second cooling water cavity (23b) rises. At this time, the second electromagnetic valve is in a closed state, and the first electromagnetic valve is controlled by the control system to change from a closed state to a communication state, so that the cooling water in the first cooling water cavity (23a) enters the second cooling water cavity (23b) through the first communication pipe (41a). By adjusting the first throttle connected to the first hot water outlet (22a) of the first cooling water pipe (2a) and the second throttle connected to the second hot water outlet (22b) of the second cooling water pipe (2b), the flow rates of the cooling water in the first cooling water pipe (2a) and the second cooling water pipe (2b) are the same. Then, the power of the first circulating cooling device connected with the first cooling water pipe (2a) is increased, the output power of the driving device is set according to the difference between the temperatures detected by the first temperature sensor group (420) and the second temperature sensor group (429), and the driving device drives the first middle shaft (425a) to rotate. After a period of time, the temperatures detected by the first temperature sensor group (420) and the second temperature sensor group (429) in the first cooling water pipe (2a) and the second cooling water pipe (2b) are basically the same, but the temperature detected by the third temperature sensor group (431) in the second liquid exchange box (42b) in the second cooling water pipe (2b) and the temperature detected by the fourth temperature sensor group (432) in the third cooling water pipe (2c) still have a difference. If the temperature detected by the third temperature sensor group (431) in the second cooling water pipe (2b) is higher than the temperature detected by the fourth temperature sensor group (432) in the third cooling water pipe (2c), the power of the first circulating cooling device connected with the first cooling water pipe (2a) needs to be continuously increased. If the temperature detected by the third temperature sensor group (431) in the second cooling water pipe (2b) is lower than the temperature detected by the fourth temperature sensor group (432) in the third cooling water pipe (2c), the power of the first circulating cooling device connected with the first cooling water pipe (2a) needs to be reduced. Finally, the temperatures in the first cooling water pipe (2a), the second cooling water pipe (2b) and the third cooling water pipe (2c) are equal.

Images