Evaporation box for oil gas condensation recovery

Abstract

The utility model discloses an evaporation box for condensing and recovering oil gas, which comprises an evaporation box body, the bottom of the evaporation box body is communicated with an oil outlet pipe, and a plurality of condensing coils are arranged in the evaporation box body; a supporting shell is fixed to the surface of the condensing coil, the surface of the condensing coil communicates with a liquid inlet pipe and a liquid discharging pipe, a motor is fixed to the surface of the evaporation box body, two rotating shafts are rotationally connected to the inner wall of the evaporation box body, two cams are fixed to the surfaces of the rotating shafts, and springs are fixed to the surface of the supporting shell. A connecting plate is fixed to the inner wall of the evaporation box body, a circulating fan is fixed to the top of the evaporation box body, the air exhaust end of the circulating fan communicates with an air suction pipe, the air exhaust end of the circulating fan communicates with an air exhaust pipe, and an electric heating pipe is fixed to the upper portion of the inner wall of the evaporation box body. According to the utility model, water drops attached to the surface of the condensation pipe can be automatically removed in the oil gas condensation process, so that the surface of the condensation pipe is not easy to solidify.

Description

Technical Field

[0001] This utility model relates to the field of oil and gas recovery technology, specifically to an evaporator for oil and gas condensation recovery. Background Technology

[0002] With the vigorous promotion of national environmental protection policies, oil and gas recovery devices are widely used in oil depots, gas stations, petroleum processing, printing, pharmaceuticals and other fields. There are four existing oil and gas recovery and treatment methods: condensation, absorption, adsorption and membrane. Among them, condensation can ultimately convert the light hydrocarbon components in oil and gas into liquid for recycling, thereby achieving the purpose of pollution control. Moreover, the key technologies are mature, the cost is relatively low, maintenance is easy and safety is good.

[0003] However, due to the very low temperature of the condensing oil and gas treatment, a large amount of solidified oil and gas and frost will accumulate on the surface of the condenser tubes after the unit has been running for a period of time. These solids will form a heat insulation layer, which will hinder the effective heat exchange between the oil and gas and the condenser tubes, thereby reducing the condensation efficiency and affecting the condensation effect of the oil and gas. Utility Model Content

[0004] The purpose of this invention is to provide an evaporator for oil and gas condensation recovery, which can automatically remove water droplets adhering to the surface of the condenser tube during the oil and gas condensation process, so that the surface of the condenser tube is less prone to solidification.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an evaporator for oil and gas condensation recovery, comprising an evaporator body, an oil outlet pipe connected to the bottom of the evaporator body, and multiple condensation coils arranged inside the evaporator body;

[0006] A support shell is fixed to the surface of the condensing coil. An inlet pipe and a drain pipe are connected to the surface of the condensing coil. A motor is fixed to the surface of the evaporator body. Two rotating shafts are rotatably connected to the inner wall of the evaporator body. Two cams are fixed to the surface of the rotating shafts. A spring is fixed to the surface of the support shell. A connecting plate is fixed to the inner wall of the evaporator body. A circulating fan is fixed to the top of the evaporator body. The suction end of the circulating fan is connected to a suction pipe, and the exhaust end of the circulating fan is connected to an exhaust pipe. An electric heating element is fixed to the upper part of the inner wall of the evaporator body.

[0007] As a preferred embodiment of the evaporator for oil and gas condensation recovery according to this utility model, both the inlet pipe and the outlet pipe are equipped with corrugated pipes.

[0008] As a preferred embodiment of the evaporator for oil and gas condensation recovery according to this utility model, the surface of the condensation coil is fixed with multiple heat-conducting fins.

[0009] As a preferred embodiment of the evaporator for oil and gas condensation recovery according to this utility model, a transmission wheel is fixed on the surface of the rotating shaft, and the upper and lower transmission wheels are connected by belt drive.

[0010] As a preferred embodiment of the evaporator for oil and gas condensation recovery according to this utility model, the upper and lower sides of the inner wall of the evaporator body are fixed with slide rails, and the slide rails are slidably connected with sliders, the sliders being fixedly connected to the surface of the support shell.

[0011] As a preferred embodiment of the evaporator for oil and gas condensation recovery according to this utility model, a transparent observation window is embedded and fixed on the top of the evaporator body.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] In this invention, the inlet pipe is used to add external coolant, and the outlet pipe is used to discharge coolant. During the process of oil and gas passing through the condenser coil, the motor is started, causing the shaft to drive the cam to rotate. At this time, the cam's protruding part pushes the support shell to the right, compressing the spring. When the cam rotates to the left of the support shell, the spring rebounds, causing the support shell surface to adhere to the cam, thus allowing the condenser coil to oscillate back and forth slightly. This oscillation helps reduce the direct accumulation of condensed oil or frost on the surface of the condenser coil, because continuous movement can help to reduce the accumulation of newly formed condensate. Liquid droplets or ice crystals are difficult to adhere stably and are therefore easy to detach. When the circulating fan starts, it can absorb some of the oil and gas passing through the condenser coil and discharge it back above the condenser coil through the exhaust pipe. This allows the pressurized oil and gas to be blown directly onto the surface of the condenser coil, thereby further removing the oil and gas droplets condensed on the surface of the condenser coil. At the same time, the oil and gas can pass through the condenser coil again and undergo secondary condensation, thus improving the condensation effect of the oil and gas. When the oil on the surface of the condenser coil freezes and solidifies, turning on the electric heating element can discharge heated gas through the exhaust pipe, thereby thawing the surface of the condenser coil. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0016] Figure 3 This is a partial structural schematic diagram of the present invention;

[0017] Figure 4 This is a schematic diagram of the structure of the condenser coil after disassembly in this utility model.

[0018] In the diagram: 1. Evaporator body; 2. Oil outlet pipe; 3. Condensation coil; 4. Support shell; 5. Liquid inlet pipe; 6. Liquid outlet pipe; 7. Motor; 8. Rotating shaft; 9. Cam; 10. Spring; 11. Connecting plate; 12. Circulating fan; 13. Suction pipe; 14. Exhaust pipe; 15. Heating element; 16. Transparent observation window; 17. Transmission wheel; 18. Heat-conducting fins; 19. Slide rail; 20. Slider; 21. Corrugated pipe. Detailed Implementation

[0019] Please see Figure 1-4 An evaporator for oil and gas condensation recovery includes an evaporator body 1, an air inlet on the left side of the evaporator body 1, an exhaust port on the right side of the evaporator body 1, an oil outlet pipe 2 connected to the bottom of the evaporator body 1, and multiple condensation coils 3 inside the evaporator body 1.

[0020] Oil and gas enter the evaporator body 1 through the left side. Coolant can be transported inside the condenser coil 3, so that the condenser coil 3 can condense the oil and gas. The condensed oil and gas can be discharged through the exhaust port on the right side of the evaporator body 1, while the condensed oil can be discharged from the evaporator body 1 through the oil outlet pipe 2.

[0021] A support shell 4 is fixed to the surface of the condensing coil 3. An inlet pipe 5 and a drain pipe 6 are connected to the surface of the condensing coil 3. Both the inlet pipe 5 and the drain pipe 6 penetrate the evaporator body 1. A motor 7 is fixed to the surface of the evaporator body 1. Two rotating shafts 8 are rotatably connected to the inner wall of the evaporator body 1. The output shaft of the motor 7 penetrates the evaporator body 1 and is fixedly connected to one end of the lower rotating shaft 8. Two cams 9 are fixed to the surface of the rotating shaft 8. The cams 9 are slidably connected to the surface of the support shell 4. A spring 10 is fixed to the surface of the support shell 4. A connecting plate 11 is fixed to the inner wall of the evaporator body 1. One end of the spring 10 is fixedly connected to the surface of the connecting plate 11. A circulating fan 12 is fixed to the top of the evaporator body 1. A suction pipe 13 is connected to the suction end of the circulating fan 12. An exhaust pipe 14 is connected to the exhaust end of the circulating fan 12. Both the suction pipe 13 and the exhaust pipe 14 penetrate the evaporator body 1. An electric heating tube 15 is fixed to the upper part of the inner wall of the evaporator body 1.

[0022] The inlet pipe 5 is used to add external coolant, and the drain pipe 6 is used to drain coolant. During the process of oil and gas passing through the condenser coil 3, the motor 7 is started, causing the shaft 8 to drive the cam 9 to rotate. At this time, the protruding part of the cam 9 pushes the support housing 4 to the right, compressing the spring 10. When the cam 9 rotates to the left of the support housing 4, the spring 10 rebounds, causing the support housing surface 4 to adhere to the cam 9. This allows the condenser coil 3 to oscillate back and forth slightly. This oscillation helps reduce the direct accumulation of condensed oil or frost on the surface of the condenser coil 3, because the continuous movement can dissolve newly formed droplets. Ice crystals may be difficult to adhere stably and thus easily fall off. When the circulating fan 12 starts, it can absorb some of the oil and gas passing through the condenser coil 3 and discharge it back to the top of the condenser coil 3 through the exhaust pipe 14. This allows the pressurized oil and gas to be blown directly onto the surface of the condenser coil 3, thereby further removing the oil and gas droplets condensed on the surface of the condenser coil 3. At the same time, the oil and gas can pass through the condenser coil 3 again and undergo secondary condensation, thereby improving the condensation effect of the oil and gas. When the surface of the condenser coil 3 is frozen and solidified, the electric heating tube 15 can be turned on to discharge the heated gas through the exhaust pipe 14, thereby thawing the surface of the condenser coil 3.

[0023] Furthermore, corrugated pipes 21 are installed on the surfaces of both the inlet pipe 5 and the outlet pipe 6;

[0024] The bellows 21 provides the necessary flexibility to ensure that the condenser coil 3 can drive the inlet pipe 5 and the outlet pipe 6 normally, while also ensuring the normal circulation of the coolant.

[0025] Furthermore, multiple heat-conducting fins 18 are fixed on the surface of the condenser coil 3;

[0026] The heat-conducting fins 18 can increase the contact area with oil and gas, thereby improving the condensation effect of oil and gas.

[0027] Furthermore, a transmission wheel 17 is fixed on the surface of the rotating shaft 8, and the upper and lower transmission wheels 17 are connected by a belt drive.

[0028] When the lower rotating shaft 8 rotates, it can drive the upper rotating shaft 8 to rotate synchronously through the transmission of two transmission wheels 17 and belt, thereby ensuring that the upper and lower cams 9 can push the support shell 4 at the same time.

[0029] Furthermore, slide rails 19 are fixed on both the upper and lower sides of the inner wall of the evaporator body 1, and sliders 20 are slidably connected to the surface of the slide rails 19. The surface of the sliders 20 is fixedly connected to the surface of the support shell 4.

[0030] The support shell 4 can drive the slider 20 to slide on the surface of the slide rail 19, thereby making the support shell 4 more stable when it moves.

[0031] Furthermore, a transparent observation window 16 is embedded and fixed on the top of the evaporator body 1;

[0032] The transparent observation window 16 allows operators to observe whether there is frost on the surface of the condenser coil 3.

[0033] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An evaporator for oil and gas condensation recovery, comprising an evaporator body (1), characterized in that: The bottom of the evaporator body (1) is connected to an oil outlet pipe (2), and multiple condenser coils (3) are installed inside the evaporator body (1). A support shell (4) is fixed on the surface of the condensing coil (3). An inlet pipe (5) and a drain pipe (6) are connected to the surface of the condensing coil (3). A motor (7) is fixed on the surface of the evaporator body (1). Two rotating shafts (8) are rotatably connected to the inner wall of the evaporator body (1). Two cams (9) are fixed on the surface of the rotating shafts (8). A spring (10) is fixed on the surface of the support shell (4). A connecting plate (11) is fixed on the inner wall of the evaporator body (1). A circulating fan (12) is fixed on the top of the evaporator body (1). A suction pipe (13) is connected to the suction end of the circulating fan (12). An exhaust pipe (14) is connected to the exhaust end of the circulating fan (12). An electric heating tube (15) is fixed on the upper part of the inner wall of the evaporator body (1).

2. An evaporator for oil and gas condensation recovery according to claim 1, characterized in that: Both the inlet pipe (5) and the outlet pipe (6) are fitted with corrugated pipes (21).

3. An evaporator for oil and gas condensation recovery according to claim 1, characterized in that: The surface of the condenser coil (3) is fixed with multiple heat-conducting fins (18).

4. An evaporator for oil and gas condensation recovery according to claim 1, characterized in that: The rotating shaft (8) has a transmission wheel (17) fixed on its surface, and the upper and lower transmission wheels (17) are connected by belt drive.

5. An evaporator for oil and gas condensation recovery according to claim 1, characterized in that: The evaporator body (1) has slide rails (19) fixed on both the upper and lower sides of the inner wall. A slider (20) is slidably connected to the surface of the slide rail (19). The surface of the slider (20) is fixedly connected to the surface of the support shell (4).

6. An evaporator for oil and gas condensation recovery according to claim 1, characterized in that: A transparent observation window (16) is embedded and fixed on the top of the evaporator body (1).

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