Ethylene glycol evaporator eg line heating structure

Abstract

An ethylene glycol evaporator EG pipeline heating structure, including ethylene glycol collection tank, circulating pump, three stage spraying device, evaporator and EG collection tank, the ethylene glycol collection tank is connected with circulating pump by pipeline, the circulating pump is connected with three stage spraying device by first pipeline, and circulating pump is connected with evaporator by second pipeline, the evaporator is connected with EG collection tank by third pipeline, the second pipeline is connected with heating jacket, the third pipeline includes first steam pipe and second steam pipe, the utility model discloses utilize the high temperature EG of evaporator generation, send it into heating jacket and carry out heat exchange with the ethylene glycol of supplementing evaporator, to heat before entering evaporator to the ethylene glycol of supplementing, can reduce cold and hot impact after the ethylene glycol of heating, to protect equipment.

Description

Technical Field

[0001] This utility model relates to the field of evaporator equipment technology, specifically to a heating structure for an ethylene glycol evaporator EG pipeline. Background Technology

[0002] Ethylene glycol evaporators are specialized equipment for processing ethylene glycol solutions, widely used in chemical, refrigeration, and food processing industries. Their core function is to concentrate or cool the ethylene glycol solution through evaporation, featuring corrosion resistance and high-efficiency heat exchange. However, in current ethylene glycol evaporators, cold liquid ethylene glycol is often directly added during continuous use. This method is prone to thermal shock, affecting the evaporator's lifespan and resulting in relatively poor operating efficiency. Utility Model Content

[0003] The present invention provides a heating structure for the EG pipeline of an ethylene glycol evaporator to solve the above-mentioned technical problems. This heating structure can reduce thermal shock and protect the equipment.

[0004] To solve the above-mentioned technical problems, the technical solution of this utility model for a heating structure of an ethylene glycol evaporator EG pipeline is as follows:

[0005] The system includes an ethylene glycol collection tank, a circulating pump, a three-stage spray system, an evaporator, and an EG collection tank. The ethylene glycol collection tank is connected to the circulating pump via a pipeline. The circulating pump is connected to the three-stage spray system via a first pipeline and to the evaporator via a second pipeline. The evaporator is connected to the EG collection tank via a third pipeline, and a heating jacket is connected to the second pipeline. The third pipeline includes a first steam supply pipe and a second steam supply pipe. One end of the first steam supply pipe is connected to the evaporator, and the other end is connected to the heating jacket. One end of the second steam supply pipe is connected to the heating jacket, and the other end is connected to the EG collection tank.

[0006] The heating jacket is connected to a steam inlet pipe and a steam outlet pipe; the steam inlet pipe is connected to the first steam supply pipe through a flange, and the steam outlet pipe is connected to the second steam supply pipe through a flange.

[0007] The second pipeline includes a heat exchange coil, a first conveying pipe, and a second conveying pipe; the heat exchange coil is connected between the first conveying pipe and the second conveying pipe, and the heat exchange coil is installed inside the heating jacket.

[0008] The heating jacket includes a jacket body and an upper cover that is sealed to the top of the jacket body by bolts; the heat exchange coil is located inside the jacket body.

[0009] The heat exchange coil has an upper mounting pipe and a lower mounting pipe respectively passing through the upper cover and the sleeve at its upper and lower ends; the upper mounting pipe is threaded to an upper connecting pipe, and the lower mounting pipe is threaded to a lower connecting pipe; the lower connecting pipe is connected to a first conveying pipe through a flange, and the upper connecting pipe is connected to a second conveying pipe through a flange.

[0010] A first sealing ring is connected between the upper connecting pipe and the upper cover, and a second sealing ring is connected between the lower connecting pipe and the sleeve.

[0011] A first limiting ring is connected to the upper mounting tube, and a second limiting ring is connected to the lower mounting tube; a third sealing ring is connected between the first limiting ring and the upper cover; and a fourth sealing ring is connected between the second limiting ring and the sleeve.

[0012] The technical effects that this utility model can achieve are:

[0013] 1. This utility model utilizes the high-temperature EG generated by the evaporator to send it into the heating jacket for heat exchange with the ethylene glycol supplied to the evaporator. This heats the supplied ethylene glycol before it enters the evaporator, reducing thermal shock and thus protecting the equipment.

[0014] 2. The heat exchange coil can increase the heat exchange area, resulting in better heat exchange effect; secondly, the heat exchange coil is connected by a detachable connection mechanism, which makes it convenient to replace it after damage. Attached Figure Description

[0015] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0016] Figure 1 This is a schematic diagram of the heating structure of an ethylene glycol evaporator EG pipeline according to this utility model;

[0017] Figure 2 This is a cross-sectional view of the heating jacket;

[0018] Figure 3 yes Figure 2 Enlarged view of part A;

[0019] Figure 4 yes Figure 2 Enlarged view of part B;

[0020] Figure 5 This is a schematic diagram of the heating jacket structure;

[0021] Figure 6 This is a schematic diagram of the heat exchange coil structure. Detailed Implementation

[0022] The present invention will now be described in further detail with reference to the accompanying drawings.

[0023] See Figures 1 to 6 .

[0024] An ethylene glycol evaporator EG pipeline heating structure includes an ethylene glycol collection tank 1, a circulating pump 2, a three-stage spray device 3, an evaporator 4, and an EG collection tank 5. The ethylene glycol collection tank 1 is connected to the circulating pump 2 via a pipeline. The circulating pump 2 is connected to the three-stage spray device 3 via a first pipeline 6. The circulating pump 2 is connected to the evaporator 4 via a second pipeline 7. The evaporator 4 is connected to the EG collection tank 5 via a third pipeline. A heating jacket 8 is connected to the second pipeline 7. The third pipeline includes a first steam supply pipe 9 and a second steam supply pipe 10. One end of the first steam supply pipe 9 is connected to the evaporator 4, and the other end is connected to the heating jacket 8. One end of the second steam supply pipe 10 is connected to the heating jacket 8, and the other end is connected to the EG collection tank 5. Specifically, an inlet pipe 21 and an outlet pipe 22 are connected to the heating jacket 8. The inlet pipe 21 is connected to the first steam supply pipe 9 via a flange, and the outlet pipe 22 is connected to the second steam supply pipe 10 via a flange. The high-temperature EG generated by the evaporator 4 of this invention is sent into the heating jacket 8 through the first steam pipe 9 and exchanges heat with the ethylene glycol supplied to the evaporator 4 through the second pipe 7. This heats the supplied ethylene glycol before it enters the evaporator 4, and the heated ethylene glycol reduces thermal shock after entering the evaporator 4, thus protecting the equipment.

[0025] In the design of the heating jacket 8, the second pipe 7 includes a heat exchange coil 11, a first conveying pipe 12, and a second conveying pipe 13. The heat exchange coil 11 is connected between the first conveying pipe 12 and the second conveying pipe 13, and the heat exchange coil 11 is installed inside the heating jacket 8. The heating jacket 8 includes a sleeve 31 and an upper cover 32 that is bolted and sealed to the upper part of the sleeve 31. The heat exchange coil 11 is located inside the sleeve 31. The upper and lower ends of the heat exchange coil 11 pass through the upper cover 32 and the sleeve 31 respectively and are connected to an upper mounting pipe 41 and a lower mounting pipe 42 respectively. The upper mounting pipe 41 is threaded to an upper connecting pipe 43, and the lower mounting pipe 42 is threaded to a lower connecting pipe 44. The lower connecting pipe 44 is connected to the first conveying pipe 12 through a flange, and the upper connecting pipe 43 is connected to the second conveying pipe 13 through a flange. This utility model uses a heat exchange coil 11 for heat exchange. The heat exchange coil 11 adopts a spiral design, which helps to increase the heat exchange area and improve the heat exchange efficiency. In addition, the heat exchange coil 11 adopts the above-mentioned detachable connection structure design (that is, the upper mounting pipe 41 is threaded to the upper connecting pipe 43, and the lower mounting pipe 42 is threaded to the lower connecting pipe 44), which facilitates replacement after damage.

[0026] To ensure a tight seal, this invention features a first sealing ring 51 connecting the upper connecting pipe 43 and the upper cover 32, and a second sealing ring 52 connecting the lower connecting pipe 44 and the sleeve 31. A first limiting ring 61 is connected to the upper mounting pipe 41, and a second limiting ring 62 is connected to the lower mounting pipe 42. A third sealing ring 53 connects the first limiting ring 61 to the upper cover 32, and a fourth sealing ring 54 connects the second limiting ring 62 to the sleeve 31. These sealing rings effectively enhance the sealing performance and prevent leakage.

Claims

1. A heating structure for an ethylene glycol evaporator EG pipeline, comprising an ethylene glycol collection tank (1), a circulating pump (2), a three-stage spray device (3), an evaporator (4), and an EG collection tank (5); the ethylene glycol collection tank (1) is connected to the circulating pump (2) via a pipeline; the circulating pump (2) is connected to the three-stage spray device (3) via a first pipeline (6), and the circulating pump (2) is connected to the evaporator (4) via a second pipeline (7); the evaporator (4) is connected to the EG collection tank (5) via a third pipeline, characterized in that: The second pipe (7) is connected to a heating jacket (8); the third pipe includes a first steam pipe (9) and a second steam pipe (10); one end of the first steam pipe (9) is connected to the evaporator (4) and the other end is connected to the heating jacket (8); one end of the second steam pipe (10) is connected to the heating jacket (8) and the other end is connected to the EG collection tank (5).

2. The heating structure for an ethylene glycol evaporator EG pipeline according to claim 1, characterized in that: The heating jacket (8) is connected to a steam inlet pipe (21) and a steam outlet pipe (22); the steam inlet pipe (21) is connected to the first steam supply pipe (9) through a flange, and the steam outlet pipe (22) is connected to the second steam supply pipe (10) through a flange.

3. The heating structure for the EG pipeline of an ethylene glycol evaporator according to claim 1, characterized in that: The second pipeline (7) includes a heat exchange coil (11), a first conveying pipe (12) and a second conveying pipe (13); the heat exchange coil (11) is connected between the first conveying pipe (12) and the second conveying pipe (13), and the heat exchange coil (11) is installed in the heating jacket (8).

4. The heating structure for an ethylene glycol evaporator EG pipeline according to claim 3, characterized in that: The heating jacket (8) includes a jacket (31) and an upper cover (32) that is bolted and sealed to the top of the jacket (31); the heat exchange coil (11) is located inside the jacket (31).

5. The heating structure for an ethylene glycol evaporator EG pipeline according to claim 4, characterized in that: The heat exchange coil (11) passes through the upper cover (32) and the sleeve (31) respectively and is connected to the upper installation pipe (41) and the lower installation pipe (42); the upper installation pipe (41) is threaded to the upper connecting pipe (43), and the lower installation pipe (42) is threaded to the lower connecting pipe (44); the lower connecting pipe (44) is connected to the first conveying pipe (12) through a flange, and the upper connecting pipe (43) is connected to the second conveying pipe (13) through a flange.

6. The heating structure for an ethylene glycol evaporator EG pipeline according to claim 5, characterized in that: A first sealing ring (51) is connected between the upper connecting pipe (43) and the upper cover (32), and a second sealing ring (52) is connected between the lower connecting pipe (44) and the sleeve (31).

7. The heating structure for an ethylene glycol evaporator EG pipeline according to claim 5, characterized in that: The upper mounting tube (41) is connected to a first limiting ring (61), and the lower mounting tube (42) is connected to a second limiting ring (62); a third sealing ring (53) is connected between the first limiting ring (61) and the upper cover (32); a fourth sealing ring (54) is connected between the second limiting ring (62) and the sleeve (31).

Images