Ethylene glycol heat recovery device

Abstract

The utility model discloses an ethylene glycol heat recovery device which comprises a frame, a processing mechanism is arranged on the outer surface of the frame, the processing mechanism comprises a heating plate, and ethylene glycol is uniformly heated through lifting of the heating plate. The MEG tower is fixedly communicated with a pipeline with a control valve, the pipeline is fixedly communicated with a cooling tank, the control valve is installed on the pipeline and used for controlling flowing of fluid, the cooling tank is rotationally connected with a cooling pipe, and the cooling pipe and a rotating frame are rotationally connected with a synchronous belt through a synchronous wheel and drive the rotating pipe to rotate. The ethylene glycol can circulate in the cooling pipe, other liquid is heated while the ethylene glycol is cooled, after the ethylene glycol is cooled, the water pump sucks the ethylene glycol, and the ethylene glycol enters the fixedly communicated heating tank, so that the ethylene glycol is heated subsequently, heat energy utilization is maximized, and the ethylene glycol recycling device has the effect of recycling the ethylene glycol.

Description

Technical Field

[0001] The utility model relates to the technical field of ethylene glycol, in particular to an ethylene glycol heat recovery device. Background Technique

[0002] Ethylene glycol is an important basic organic raw material in petrochemical industry, mainly used in the production of polyester, antifreeze, lubricant, plasticizer, etc. With the continuous change of market conditions, the construction of ethylene glycol plants is developing towards large-scale, technical and economic directions, which requires us to adjust the production process of our own plants, optimize the energy utilization system, reduce the energy consumption of the plants, and improve the competitiveness of enterprises.

[0003] The Chinese patent with the authorization announcement number CN218740267U discloses a heat recovery and utilization mechanism for ethylene glycol products, which includes a refining tower, a product pump, an air cooler, and a product tank connected in series in sequence. A heat exchanger is arranged between the product pump and the air cooler. A pump outlet pipeline is connected between the feed inlet of the heat exchanger and the product pump, and a heat exchange outlet pipeline is connected between the discharge outlet of the heat exchanger and the air cooler. The cold source used by the heat exchanger is boiler water. The utility model has the following beneficial effects: realizing the recovery and utilization of heat, reducing the power consumption of the air-cooled air cooler at the same time, and increasing the benefits of the enterprise.

[0004] Regarding the above related technologies, the inventor believes that when recovering ethylene glycol, using boiler water to flow through the heat exchange outlet pipeline to cool ethylene glycol. If the pipeline cannot rotate, the surface area of heat transfer will be reduced, and at the same time, the cleaning and maintenance work may be restricted. Moreover, the cooled ethylene glycol may still contain a certain amount of thermal energy. If it is not reheated and utilized again, these thermal energies will be wasted, resulting in inefficient use of energy, increasing energy costs and environmental impacts. Therefore, an ethylene glycol heat recovery device is proposed to solve the above-mentioned problems. Content of the Utility Model

[0005] In order to solve the technical problem that when recovering ethylene glycol, using boiler water to flow through the heat exchange outlet pipeline to cool ethylene glycol. If the pipeline cannot rotate, the surface area of heat transfer will be reduced, and the cooled ethylene glycol may still contain a certain amount of thermal energy. If it is not reheated and utilized again, resulting in waste of thermal energy, this application provides an ethylene glycol heat recovery device.

[0006] This application provides an ethylene glycol heat recovery device, adopting the following technical scheme:

[0007] An ethylene glycol heat recovery device includes a frame, and a processing mechanism is arranged on the outer surface of the frame. The processing mechanism includes a heating plate, and the lifting of the heating plate uniformly heats ethylene glycol.

[0008] A utilization mechanism is provided on the outer surface of the frame. The utilization mechanism includes a water pump, and the suction of the water pump conveys ethylene glycol.

[0009] Optionally, the processing mechanism includes a motor fixedly installed on the outer surface of the frame, and a rotating frame is fixedly installed on the output shaft of the motor.

[0010] Optionally, a heating tank is fixedly installed on the outer surface of the frame, a support frame is fixedly installed on the outer surface of the heating tank, a support ring is spherically hinged to the inner wall of the groove of the support frame, and the outer surface of the support ring is spherically hinged to the inner wall of the groove of the rotating frame.

[0011] Optionally, a spherical rod is spherically hinged to the inner wall of the groove of the support ring, the outer surface of the spherical rod is slidably sleeved on the outer surface of the support frame, and one end of the spherical rod penetrates through the outer surface of the heating tank and extends into its interior.

[0012] Optionally, the outer surface of the spherical rod is fixedly installed with the outer surface of the heating plate, a spring is fixedly installed on the outer surface of the spherical rod, and one end of the spring is fixedly installed on the outer surface of the support frame.

[0013] Optionally, the utilization mechanism further includes a MEG tower fixedly installed on the outer surface of the frame. A pipeline with a control valve is fixedly communicated with the outer surface of the MEG tower. A cooling tank is fixedly installed on the outer surface of the frame. The outer surface of the cooling tank is fixedly communicated with one end of the pipeline. A cooling pipe is rotatably connected to the inner wall of the groove of the cooling tank.

[0014] Optionally, a synchronous belt is rotatably connected to the outer surfaces of the cooling pipe and the rotating frame through synchronous wheels. The outer surface of the cooling tank is fixedly connected to the liquid inlet end of the water pump through a liquid inlet pipe. The water pump is fixedly installed on the outer surface of the frame. The liquid outlet end of the water pump is fixedly communicated with the outer surface of the heating tank through a liquid outlet pipe.

[0015] In summary, the present application includes at least one of the following beneficial technical effects:

[0016] 1. By setting up a processing mechanism to uniformly heat ethylene glycol, the output shaft of the motor drives the rotating frame to rotate, thereby driving the support ring, which is spherically hinged thereto, to rotate on the support frame with a spherical hinge, driving the spherical rod, which is spherically hinged to the support ring, to move up and down. The spherical rod is slidably sleeved on the support frame to limit its movement so that it only moves up and down. The spring is fixedly installed on the support frame so that it can be reset by the spring after descending, thereby realizing the up-and-down cycle, and driving the heating plate fixedly installed on the spherical rod to move up and down. This solves the technical problem that when recovering ethylene glycol, the cooled ethylene glycol may still contain a certain amount of thermal energy. If this thermal energy is not reheated and utilized, it will be wasted, resulting in inefficient use of energy, increased energy costs, and environmental impacts.

[0017] 2. By setting up a utilization mechanism to suck ethylene glycol, the MEG tower is fixedly connected to a pipeline with a control valve. The pipeline is fixedly connected to a cooling tank. A control valve is installed on the pipeline to control the flow of fluid and the processing process. The cooling tank is rotatably connected to a cooling pipe. The cooling pipe is rotationally connected to the rotating frame through a synchronous pulley and a synchronous belt to drive the rotating pipe to rotate. When heating other liquids is required, it can circulate in the cooling pipe to heat other liquids while cooling ethylene glycol. When the ethylene glycol in the cooling tank is cooled, a water pump sucks it and sends it into the fixedly connected heating tank for subsequent heating to maximize the utilization of thermal energy. This solves the technical problem that when recovering ethylene glycol, using boiler water to flow through the heat exchange outlet pipeline to cool ethylene glycol, if the pipeline cannot rotate, the surface area for heat transfer will be reduced, and at the same time, cleaning and maintenance work may be restricted. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of an ethylene glycol heat recovery device proposed by the present utility model;

[0019] Figure 2 is a perspective view of the motor structure of an ethylene glycol heat recovery device proposed by the present utility model;

[0020] Figure 3 is a perspective view of the heating plate structure of an ethylene glycol heat recovery device proposed by the present utility model;

[0021] Figure 4 is a perspective view of the spring structure of an ethylene glycol heat recovery device proposed by the present utility model.

[0022] In the figure: 1, frame; 2, motor; 21, rotating frame; 3, heating tank; 31, support frame; 32, support ring; 4, spherical rod; 5, heating plate; 51, spring; 6, MEG tower; 61, pipeline; 62, cooling tank; 63, cooling pipe; 7, synchronous belt; 71, water pump. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The following is a further detailed description of the present application in conjunction with the attached drawings. Figures 1-4 The present application will be further described in detail below.

[0024] Referring to Figures 1-4 , an ethylene glycol heat recovery device includes a frame 1. A processing mechanism is provided on the outer surface of the frame 1. The processing mechanism includes a heating plate 5, and the lifting of the heating plate 5 uniformly heats the ethylene glycol.

[0025] In order to drive the rotation of the rotating frame 21, the processing mechanism includes a motor 2. The motor 2 is fixedly installed on the outer surface of the frame 1. A rotating frame 21 is fixedly installed on the output shaft of the motor 2. By fixedly installing the motor 2 on the frame 1, it is fixed. By fixedly installing the output shaft of the motor 2 on the rotating frame 21, it drives its rotation, thereby driving the support ring 32 that is spherically hinged to it to rotate on the support frame 31 with spherical hinge, driving the spherical rod 4 that is spherically hinged to the support ring 32 to lift, and thereby driving the heating plate 5 fixedly installed on the spherical rod 4 to lift, so as to heat the cooled ethylene glycol.

[0026] In order not to affect the rotation of the support ring 32, a heating tank 3 is fixedly installed on the outer surface of the frame 1. A support frame 31 is fixedly installed on the outer surface of the heating tank 3. The inner wall of the groove of the support frame 31 is spherically hinged to the support ring 32. The outer surface of the support ring 32 is spherically hinged to the inner wall of the groove of the rotating frame 21. By fixedly installing the frame 1 on the heating tank 3, it is fixed. By fixedly installing the heating tank 3 on the support frame 31, it is fixedly supported. By spherically hinging the support frame 31 to the support ring 32, while fixing it, it does not affect its rotation. By spherically hinging the support ring 32 to the rotating frame 21, while fixing it, it does not affect its rotation, so as to drive the spherical rod 4 that is spherically hinged to the support ring 32 to lift, and make the heating plate 5 fixedly installed on the spherical rod 4 lift, thereby heating the cooled ethylene glycol.

[0027] In order to limit the spherical rod 4, a spherical rod 4 is spherically hinged to the inner wall of the groove of the support ring 32. The outer surface of the spherical rod 4 is slidably sleeved on the outer surface of the support frame 31. One end of the spherical rod 4 penetrates through the outer surface of the heating tank 3 and extends into its interior. By spherically hinging the support ring 32 to the spherical rod 4, while fixing it, it does not affect its rotation. By slidably sleeving the spherical rod 4 on the support frame 31, it is limited, so that it only moves up and down, and thereby drives the heating plate 5 fixedly installed on it to lift, so as to heat the cooled ethylene glycol.

[0028] To drive the lifting of the heating plate 5, the outer surface of the spherical rod 4 is fixedly installed with the outer surface of the heating plate 5. A spring 51 is fixedly installed on the outer surface of the spherical rod 4. One end of the spring 51 is fixedly installed with the outer surface of the support frame 31. By fixedly installing the spherical rod 4 with the heating plate 5, its lifting is driven to increase the contact area with ethylene glycol. By fixedly installing the spherical rod 4 with the spring 51 and the spring 51 with the support frame 31, it is reset by the spring 51 after descending, thus realizing the lifting cycle to improve the heating efficiency.

[0029] By setting up a processing mechanism to uniformly heat ethylene glycol, the output shaft of the motor 2 drives the rotating frame 21 to rotate, thereby driving the support ring 32, which is spherically hinged to it, to rotate on the support frame 31 with spherical hinge, driving the spherical rod 4, which is spherically hinged to the support ring 32, to lift. The spherical rod 4 is slidably sleeved with the support frame 31 to limit its position so that it only moves up and down. The spring 51 is fixedly installed with the support frame 31 and is reset by the spring 51 after descending, thus realizing the lifting cycle, and then driving the heating plate 5 fixedly installed with the spherical rod 4 to lift, solving the technical problem that when recycling ethylene glycol, the cooled ethylene glycol may still contain a certain amount of thermal energy. If this thermal energy is not reheated and utilized, it will be wasted, resulting in inefficient use of energy, increased energy costs and environmental impacts.

[0030] To convey ethylene glycol, a utilization mechanism is arranged on the outer surface of the frame 1. The utilization mechanism includes a water pump 71, and the suction of the water pump 71 conveys ethylene glycol.

[0031] To control the flow and processing of the fluid, the utilization mechanism further includes a MEG tower 6. The MEG tower 6 is fixedly installed on the outer surface of the frame 1. A pipeline 61 with a control valve is fixedly communicated with the outer surface of the MEG tower 6. A cooling tank 62 is fixedly installed on the outer surface of the frame 1. One end of the pipeline 61 is fixedly communicated with the outer surface of the cooling tank 62. A cooling pipe 63 is rotatably connected to the inner wall of the groove of the cooling tank 62. By fixedly installing the MEG tower 6 with the frame 1, it is fixed. By fixedly communicating the MEG tower 6 with the pipeline 61 with a control valve, the pipeline 61 is fixedly communicated with the cooling tank 62, and a control valve is installed on the pipeline 61 to control the flow and processing of the fluid. By rotatably connecting the cooling tank 62 with the cooling pipe 63, it is fixed without affecting its rotation, so as to increase the contact area between the pipeline 61 and ethylene glycol and improve the cooling efficiency. When other liquids need to be heated, they can circulate in the cooling pipe 63 to heat other liquids while cooling ethylene glycol.

[0032] To drive the rotation of the rotating tube, a synchronous belt 7 is rotationally connected between the outer surface of the cooling tube 63 and the outer surface of the rotating frame 21 through a synchronous pulley. The outer surface of the cooling tank 62 is fixedly connected to the liquid inlet end of the water pump 71 through a liquid inlet pipe. The water pump 71 is fixedly installed on the outer surface of the frame 1. The liquid outlet end of the water pump 71 is fixedly communicated with the outer surface of the heating tank 3 through a liquid outlet pipe. By rotationally connecting the cooling tube 63 and the rotating frame 21 with the synchronous belt 7 through a synchronous pulley, the rotating tube is driven to rotate. When the ethylene glycol in the cooling tank 62 is cooled, the water pump 71 sucks it and enters the fixedly connected heating tank 3 for subsequent heating to maximize the utilization of thermal energy.

[0033] By setting up a utilization mechanism to suck ethylene glycol, the MEG tower 6 is fixedly communicated with a pipeline 61 with a control valve. The pipeline 61 is fixedly communicated with the cooling tank 62. A control valve is installed on the pipeline 61 to control the fluid flow and treatment process. The cooling tank 62 is rotationally connected to the cooling tube 63. The cooling tube 63 is rotationally connected to the rotating frame 21 through a synchronous belt 7 of a synchronous pulley to drive the rotating tube to rotate. When other liquids need to be heated, it can circulate in the cooling tube 63 to heat other liquids while cooling the ethylene glycol. When the ethylene glycol in the cooling tank 62 is cooled, the water pump 71 sucks it and enters the fixedly connected heating tank 3 for subsequent heating to maximize the utilization of thermal energy, solving the technical problem that when recovering ethylene glycol, using boiler water to flow through the heat exchange outlet pipeline to cool the ethylene glycol, if the pipeline 61 cannot rotate, the heat transfer surface area decreases, and at the same time, the cleaning and maintenance work may be restricted.

[0034] Working principle: When ethylene glycol needs to be cooled, the ethylene glycol in the MEG tower 6 is heated, and the steam rises and enters the cooling tank 62 through the pipeline 61 with a control valve. The cooling tube 63 is fixedly communicated with the liquid to be cooled through a container, and it circulates in the cooling tube 63 to heat the liquid while cooling the ethylene glycol. At the same time, the motor 2 is started, and the synchronous belt 7 rotationally connected through the synchronous pulley drives the cooling tube 63 to rotate, increasing the contact area with the ethylene glycol and improving the cooling efficiency;

[0035] After cooling is completed, the water pump 71 sucks it and enters the fixedly connected heating tank 3. The motor 2 drives the rotating frame 21 to rotate, thereby driving the support ring 32 spherical-hinged to it to rotate on the spherical-hinged support frame 31, driving the spherical rod 4 spherical-hinged on the support ring 32 to rotate. Since the spherical rod 4 is slidably sleeved on the support frame 31, it is limited to only move up and down, thereby driving the heating plate 5 fixedly installed on it to move up and down, and the spring 51 makes it reset after descending to achieve cyclic up and down movement.

[0036] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application shall be covered within the protection scope of the present application.

Claims

1. An ethylene glycol heat recovery device, characterized in that: It comprises a frame (1), the outer surface of the frame (1) is provided with a processing mechanism, the processing mechanism comprises a heating plate (5), and the raising and lowering of the heating plate (5) uniformly heats the ethylene glycol; The outer surface of the frame (1) is provided with a utilization mechanism, which comprises a water pump (71), and the water pump (71) transports ethylene glycol through suction.

2. The ethylene glycol heat recovery device according to claim 1, characterized in that: The processing mechanism comprises a motor (2), the motor (2) is fixedly mounted on the outer surface of the frame (1), and a rotating frame (21) is fixedly mounted on the output shaft of the motor (2).

3. The ethylene glycol heat recovery device according to claim 2, characterized in that: A heating tank (3) is fixedly mounted on the outer surface of the frame (1), a support frame (31) is fixedly mounted on the outer surface of the heating tank (3), a support ring (32) is spherically hingedly connected to the inner wall of the groove of the support frame (31), and the outer surface of the support ring (32) is spherically hingedly connected to the inner wall of the groove of the rotating frame (21).

4. The ethylene glycol heat recovery device according to claim 3, characterized in that: A spherical rod (4) is spherically hinged on the inner wall of the groove of the support ring (32); the outer surface of the spherical rod (4) is slidably sleeved with the outer surface of the support frame (31); one end of the spherical rod (4) penetrates the outer surface of the heating tank (3) and extends into the interior thereof.

5. The ethylene glycol heat recovery device according to claim 4, characterized in that: The outer surface of the spherical rod (4) is fixedly mounted to the outer surface of the heating plate (5), a spring (51) is fixedly mounted to the outer surface of the spherical rod (4), and one end of the spring (51) is fixedly mounted to the outer surface of the support frame (31).

6. The ethylene glycol heat recovery device according to claim 5, characterized in that: The utilization mechanism also includes a MEG tower (6), the MEG tower (6) is fixedly mounted on the outer surface of the frame (1), the outer surface of the MEG tower (6) is fixedly connected to a pipeline (61) with a control valve, the outer surface of the frame (1) is fixedly mounted with a cooling tank (62), the outer surface of the cooling tank (62) is fixedly connected to one end of the pipeline (61), and the inner wall of the groove of the cooling tank (62) is rotatably connected to a cooling pipe (63).

7. The ethylene glycol heat recovery device according to claim 6, characterized in that: The outer surface of the cooling pipe (63) and the outer surface of the rotating frame (21) are rotatably connected to a synchronous belt (7) via a synchronous wheel; the outer surface of the cooling tank (62) is fixedly connected to the liquid inlet end of the water pump (71) via a liquid inlet pipe; the water pump (71) is fixedly mounted on the outer surface of the frame (1); and the liquid outlet end of the water pump (71) is fixedly connected to the outer surface of the heating tank (3) via a liquid outlet pipe.

Images