Special efficient heat exchanger for petrochemical industry

Abstract

The utility model discloses a special efficient heat exchanger for petrochemical engineering, which relates to the technical field of heat exchangers and comprises a bottom frame and a heat exchanger body, the heat exchanger body is fixedly arranged on the upper side of the bottom frame, and a medium inlet pipe and a medium outlet pipe are fixedly arranged at two ends of the upper side of the heat exchanger body respectively. A feeding port and a discharging port are formed in the two sides of the heat exchanger body correspondingly, a feeding shell and a discharging shell are fixedly arranged on the outer side of the feeding port and the outer side of the discharging port correspondingly, a filter screen cylinder is fixedly arranged on the side, close to the feeding port, in the feeding shell, a feeding pipe is fixedly arranged on the lower side of the feeding shell, and a discharging pipe is fixedly arranged on the lower side of the discharging shell. The outer wall of the filter screen cylinder is sleeved with a scraping ring in an abutting mode. And a transmission mechanism for driving the scraping ring to move is arranged in the feeding shell. Impurities in petroleum can be filtered, the heat exchange pipeline is prevented from being blocked by the impurities in the petroleum as much as possible, and smooth heat exchange of the heat exchanger is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchangers, in particular to a special high-efficiency heat exchanger for petrochemical industry. Background Art

[0002] Heat exchanger is a device that transfers part of the heat of hot fluid to cold fluid, also known as heat exchanger. Heat exchanger plays an important role in chemical, petroleum, power, food and many other industrial production.

[0003] Traditional high-efficiency heat exchangers dedicated to petrochemicals do not have a mechanism to filter impurities in oil. Therefore, during long-term use, impurities in the oil will cause blockage in the heat exchange pipes, which is very cumbersome to clean and greatly reduces the efficiency of the heat exchanger. Utility Model Content

[0004] In view of the above problems existing in the existing high-efficiency heat exchanger dedicated to petrochemical industry, the present utility model is proposed.

[0005] Therefore, the purpose of the utility model is to provide a high-efficiency heat exchanger specially used in petrochemical industry, which solves the problem that the high-efficiency heat exchanger specially used in petrochemical industry in the prior art does not have a mechanism for filtering impurities in petroleum. Therefore, during long-term use, impurities in the petroleum will cause blockage of the heat exchange pipeline, which is very cumbersome to clean and greatly reduces the use efficiency of the heat exchanger.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A high-efficiency heat exchanger for petrochemical industry, comprising a base frame and a heat exchanger body, wherein the heat exchanger body is fixedly arranged on the upper side of the base frame, a medium inlet pipe and a medium outlet pipe are fixedly arranged at both ends of the upper side of the heat exchanger body, a feed port and a discharge port are respectively opened on both sides of the heat exchanger body, a feed shell and a discharge shell are fixedly arranged on the outside of the feed port and the discharge port, a filter screen cylinder is fixedly arranged inside the feed shell and on the side close to the feed port, a feed pipe is fixedly arranged on the lower side of the feed shell, and a scraper ring is sleeved on the outer wall of the filter screen cylinder;

[0008] A transmission mechanism for driving the scraper ring to move is arranged inside the feed shell.

[0009] Preferably, the transmission mechanism includes a baffle and a push rod, the push rod is movably sleeved in the middle of the filter mesh cylinder, one end of the push rod extends to the interior of the heat exchanger body, the baffle is fixedly arranged at the end of the push rod located inside the heat exchanger body, a reset plate is fixedly arranged at the end of the push rod away from the baffle, both ends of the reset plate are fixedly connected to the scraper ring through a connecting rod, a spring is fixedly arranged on the side of the reset plate close to the scraper ring, and the other end of the spring is fixedly connected to the inner wall of the feed shell.

[0010] Preferably, limiting rods are fixedly provided on both sides of the interior of the feed shell, and both ends of the reset plate are movably sleeved with the corresponding limiting rods.

[0011] Preferably, the scraper ring is a rubber ring.

[0012] Preferably, a sealing sleeve is fixedly sleeved on the rod wall of the push rod.

[0013] Preferably, a sealing ring is fixedly provided at the connection portion between the filter screen cylinder and the feed shell.

[0014] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0015] In the utility model, oil enters the feed pipe and then the feed shell, and then is filtered by the filter cylinder, and then enters the heat exchanger body for heat exchange. During this period, the oil will push the baffle open. When the filter cylinder is blocked by debris, the baffle loses thrust, so that the springs on both sides are elastically reset, and the reset plate is pushed to the side away from the baffle, so that the connecting rod drives the scraper ring to move, so that the debris on the surface of the rotating cylinder can be scraped and cleaned, so that the rotating cylinder can pass oil smoothly. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0017] FIG1 is a schematic diagram of the structure of a high-efficiency heat exchanger for petrochemical industry proposed by the utility model;

[0018] FIG2 is an enlarged schematic diagram of the structure of the local A portion in FIG1;

[0019] FIG. 3 is a three-dimensional view of the scraper ring in FIG. 2 .

[0020] Description of reference numerals:

[0021] 1. Base frame; 2. Heat exchanger body; 3. Medium inlet pipe; 4. Medium outlet pipe; 5. Feed shell; 6. Discharge shell; 7. Feed pipe; 8. Filter cylinder; 9. Push rod; 10. Baffle; 11. Reset plate; 12. Connecting rod; 13. Scraper ring; 14. Limit rod; 15. Spring. DETAILED DESCRIPTION

[0022] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0023] The utility model embodiment discloses a high-efficiency heat exchanger dedicated to petrochemical industry.

[0024] 1-3, a high-efficiency heat exchanger for petrochemical industry includes a base frame 1 and a heat exchanger body 2. The heat exchanger body 2 is fixedly arranged on the upper side of the base frame 1. A medium inlet pipe 3 and a medium outlet pipe 4 are fixedly arranged at both ends of the upper side of the heat exchanger body 2. A feed port and a discharge port are respectively opened on both sides of the heat exchanger body 2. A feed shell 5 and a discharge shell 6 are fixedly arranged on the outer sides of the feed port and the discharge port, respectively. A filter screen cylinder 8 is fixedly arranged inside the feed shell 5 and on the side close to the feed port. A sealing ring is fixedly arranged at the connection between the filter screen cylinder 8 and the feed shell 5 to improve the sealing performance of the connection between the filter screen cylinder 8 and the feed shell 5. A feed pipe 7 is fixedly arranged on the lower side of the feed shell 5. A scraper ring 13 is sleeved on the outer wall of the filter screen cylinder 8. The scraper ring 13 is a rubber ring to prevent scratches on the filter screen cylinder 8 as much as possible.

[0025] 1-3, a transmission mechanism for driving the scraper ring 13 to move is provided inside the feed shell 5, and the transmission mechanism includes a baffle 10 and a push rod 9. The push rod 9 is movably sleeved in the middle of the filter screen cylinder 8, and a sealing sleeve is fixedly sleeved on the rod wall of the push rod 9 to improve the sealing between the push rod 9 and the filter screen cylinder 8. One end of the push rod 9 extends to the inside of the heat exchanger body 2, and the baffle 10 is fixedly provided at one end of the push rod 9 located inside the heat exchanger body 2. A reset plate 11 is fixedly provided at one end of the push rod 9 away from the baffle 10, and both ends of the reset plate 11 are fixedly connected to the scraper ring 13 through a connecting rod 12. A spring 15 is fixedly provided on one side of the reset plate 11 close to the scraper ring 13, and the other end of the spring 15 is fixedly connected to the inner wall of the feed shell 5.

[0026] 1-3 , the inner sides of the feed shell 5 are fixedly provided with limit rods 14 , and both ends of the reset plate 11 are movably connected with the corresponding limit rods 14 , so that the reset plate 11 can slide stably.

[0027] In the utility model, when in use, the oil enters the feed shell 5 through the feed pipe 7, is filtered by the filter screen cylinder 8, and then enters the heat exchanger body 2 for heat exchange. During this period, the oil will push the baffle 10 open. When the filter screen cylinder 8 is blocked by debris, the baffle 10 loses its thrust, so that the springs 15 on both sides are elastically reset, and the reset plate 11 is pushed to the side away from the baffle 10, so that the connection rod 12 drives the scraper ring 13 to move, that is, the debris on the surface of the rotating screen cylinder 8 can be scraped and cleaned, so that the rotating screen cylinder 8 can pass the oil smoothly.

[0028] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A high-efficiency heat exchanger for petrochemical industry, comprising a base frame (1) and a heat exchanger body (2), characterized in that: The heat exchanger body (2) is fixedly arranged on the upper side of the base frame (1), and a medium inlet pipe (3) and a medium outlet pipe (4) are fixedly arranged at both ends of the upper side of the heat exchanger body (2), and a feed port and a discharge port are respectively opened on both sides of the heat exchanger body (2), and a feed shell (5) and a discharge shell (6) are respectively fixedly arranged on the outer sides of the feed port and the discharge port, and a filter screen cylinder (8) is fixedly arranged inside the feed shell (5) and on a side close to the feed port, and a feed pipe (7) is fixedly arranged on the lower side of the feed shell (5), and a scraper ring (13) is sleeved on the outer wall of the filter screen cylinder (8); A transmission mechanism for driving the scraper ring (13) to move is arranged inside the feed shell (5).

2. The high-efficiency heat exchanger for petrochemical industry according to claim 1, characterized in that: The transmission mechanism comprises a baffle (10) and a push rod (9), wherein the push rod (9) is movably sleeved on the middle part of the filter screen cylinder (8), one end of the push rod (9) extends to the inside of the heat exchanger body (2), the baffle (10) is fixedly arranged at the end of the push rod (9) located inside the heat exchanger body (2), a reset plate (11) is fixedly arranged at the end of the push rod (9) away from the baffle (10), both ends of the reset plate (11) are fixedly connected to the scraper ring (13) through a connecting rod (12), a spring (15) is fixedly arranged on the side of the reset plate (11) close to the scraper ring (13), and the other end of the spring (15) is fixedly connected to the inner wall of the feed shell (5).

3. The high-efficiency heat exchanger for petrochemical industry according to claim 2, characterized in that: Limit rods (14) are fixedly arranged on both sides of the interior of the feed shell (5), and both ends of the reset plate (11) are movably sleeved with corresponding limit rods (14).

4. The high-efficiency heat exchanger for petrochemical industry according to claim 1, characterized in that: The scraper ring (13) is a rubber ring.

5. The high-efficiency heat exchanger for petrochemical industry according to claim 2, characterized in that: The rod wall of the push rod (9) is fixedly sleeved with a sealing sleeve.

6. The high-efficiency heat exchanger for petrochemical industry according to claim 1, characterized in that: A sealing ring is fixedly provided at the connection portion between the filter screen cylinder (8) and the feed shell (5).

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