Hydrogenation product low-pressure separator

Abstract

The utility model relates to the technical field of hydrogenation product distillate oil, in particular to a hydrogenation product low-pressure separator which comprises a closed water storage tank and an air outlet pipe communicated with a low-pressure separator body, the air outlet end of the air outlet pipe penetrates into the lower portion of the water storage tank, the top face of the water storage tank is communicated with one end of an exhaust pipe, and the other end of the exhaust pipe is communicated with a drying pipe. The drying pipe is communicated with an air inlet pipe communicated with the collecting tank, and drying agent particles are arranged in the drying pipe. By means of the drying agent, water vapor can be absorbed twice in the mode of first rinsing and then drying, the water vapor can be absorbed more thoroughly, meanwhile, the service life of the drying agent can be prolonged, and consumption is reduced to a certain degree.

Description

Technical Field

[0001] The utility model belongs to the technical field of hydrogenation product distillate oil, in particular to a low-pressure separator for hydrogenation products. Background Art

[0002] In the technology of cutting the hydrogenation product fraction oil, in order to increase the cracking reaction during the reaction process, it is often necessary to add a hydrocracking agent to the reaction gas system, and adding a hydrocracking agent to the reaction gas system will produce water, oil and liquefied gas. In order to collect the liquefied gas, a low-pressure separator is required. Among them, the existing low-pressure separator liquefies the gas at the separation point, but due to the lack of a drying structure, the liquefied gas is often discharged together with water vapor, which will cause the liquefied gas to contain a certain amount of water when it is recovered, thereby affecting the normal use of the liquefied gas. Utility Model Content

[0003] The utility model provides a low-pressure separator for hydrogenation products, which is used to solve the defects in the prior art.

[0004] The utility model is realized through the following technical solutions:

[0005] A low-pressure separator for hydrogenation products comprises a closed water storage tank and an air outlet pipe connected to a main body of the low-pressure separator, wherein the air outlet end of the air outlet pipe penetrates into the lower part of the water storage tank, the top surface of the water storage tank is connected to one end of an exhaust pipe, the exhaust pipe is connected to a drying pipe, the drying pipe is connected to an air inlet pipe connected to a collection tank, and desiccant particles are arranged in the drying pipe.

[0006] When the present application is in use, first, a mixed gas mixed with water vapor enters a water tank, wherein the water vapor cools down when it meets water and turns into water, whereas natural gas is insoluble in water. Therefore, in the mixed gas coming out of the water tank, the water vapor content is reduced, and then the mixed gas continues to enter the drying tube through the exhaust pipe, so that the water vapor in the mixed gas is further absorbed by the desiccant particles in the drying tube, thereby ensuring that the gas coming out of the drying tube and entering the intake pipe is natural gas. At the same time, since most of the water vapor in the mixed gas is dissolved in water, very few desiccant particles enter the drying tube, thereby reducing the amount of desiccant particles used, saving costs to a certain extent.

[0007] Preferably, a branch pipe is connected to the middle part of the exhaust pipe, a first valve is provided at the air inlet end of the branch pipe and the air outlet end is connected to the air inlet pipe, a drying area is separated by two filters in the branch pipe, desiccant particles are provided in the drying area, a feed port and a discharge port are respectively provided on the top surface and the ground of the branch pipe, the feed port and the discharge port are located in the drying area and are sealed by a detachable sealing rod, a second valve is also provided at the air outlet end of the exhaust pipe, a socket is vertically provided on the top surface of the drying pipe, the socket is sealed by an arc plate, the arc plate is fixedly connected to the drying pipe by bolts, the arc plate is fixedly connected to a grid box, the upper part of the grid box is located in the socket and the bottom surface is in contact with the inner wall of the bottom surface of the drying pipe, desiccant particles are provided in the grid box, baffle plates are provided on both sides of the grid box, the baffle plates are in contact with the inner wall of the drying pipe and are fixedly connected, and the drying pipe is separated by the baffle plate and the grid box. After the drying pipe is ventilated for a period of time, the second valve can be closed and the first valve can be opened to allow the mixed gas to circulate through the branch pipe and flow into the air inlet pipe again, thereby facilitating the opening of the arc plate and removing the grid box from the drying pipe without affecting the normal air flow, thereby facilitating the replacement of the desiccant particles in the drying pipe. At the same time, after the replacement is completed, the arc plate is closed, and the first valve can be closed and the second valve can be opened to allow the mixed gas to continue to circulate in the drying pipe, and the desiccant particles in the branch pipe can be replaced through the feed port and the discharge port.

[0008] Preferably, the arc-shaped plate is vertically provided with a screw hole, the inner thread of the screw hole is matched with a circular plate located at the upper part of the screw hole, the circular plate is fixedly connected with a rotating rod upward, the lower part of the screw hole is coaxially connected and connected with a feed pipe, the discharge end of the feed pipe is connected with a grid box, the bottom of the grid box is connected with a discharge pipe, a cap is threadedly connected on the discharge pipe, a groove is provided on the inner wall of the top surface of the drying tube, and the cap is located in the groove. The screw can be rotated out of the screw hole by rotating the screw rod, so that the screw rod can not only play the role of lifting the arc-shaped plate, but also close the screw hole, and the desiccant particles can enter the grid box through the screw hole and the feed pipe and flow out through the discharge pipe, so as to realize the replacement of the desiccant particles in the grid box.

[0009] Preferably, the sockets are provided with a plurality of mesh boxes along the length direction of the drying tube and corresponding mesh boxes are used in the sockets. Having a plurality of mesh boxes can not only absorb water vapor better, but also only one mesh box can be replaced with desiccant particles at a time, and the mesh box at the rear side can be moved forward, and the removed mesh box can be placed at the rear after the desiccant particles are replaced, so as to fully utilize the desiccant particles.

[0010] Preferably, the two filter screens are symmetrically arranged along the discharge port and the filter screens are inclined from top to bottom toward the discharge port. The inclined arrangement of the filter screens can facilitate the desiccant particles in the branch pipe to be discharged and replaced from the discharge port.

[0011] Preferably, the water storage tank is provided with a water inlet on the top surface and a water outlet on the bottom, the water outlet is connected to a water outlet pipe, the water outlet pipe is provided with a water outlet valve, the water inlet is sealed by a cover, and the water storage tank is provided with a thermometer capable of measuring water temperature. The water in the water storage tank can be easily replaced through the water inlet and the water outlet, thereby ensuring that the water in the water storage tank is cold water, facilitating the cooling of water vapor, and the thermometer can measure the temperature of the water in the water storage tank, making it convenient to observe the temperature in the water storage tank and replace the water.

[0012] The beneficial effects of the utility model are as follows: the use of the present application can absorb water vapor twice by first hydrating and then drying, which can not only absorb the water vapor more thoroughly, but also increase the service life of the desiccant and save consumption to a certain extent; at the same time, the desiccant in the drying tube can be replaced by closing the first valve and opening the second valve without affecting normal exhaust. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0014] Figure 1 It is a structural schematic diagram of the utility model;

[0015] Figure 2 This is a schematic diagram of the grid box fitting inside the drying tube.

[0016] As shown in the figure:

[0017] 1. Water storage tank, 2. Air outlet pipe, 3. Exhaust pipe, 4. Drying pipe, 5. Air inlet pipe, 6. Branch pipe, 7. First valve, 8. Second valve, 9. Filter, 10. Socket, 11. Curved plate, 12. Grid box, 13. Blocking plate, 14. Screw hole, 15. Discharge pipe, 16. Cap, 17. Water inlet, 18. Water outlet, 19. Feed port, 20. Discharge port, 21. Feed pipe. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] A low-pressure separator for hydrogenation products, such as Figure 1 and Figure 2 It includes a closed water storage tank 1 and an air outlet pipe connected to the main body of the low-pressure separator, the air outlet end of the air outlet pipe penetrates into the lower part of the water storage tank 1, the top surface of the water storage tank 1 is connected to one end of an exhaust pipe 3, the exhaust pipe 3 is connected to a drying pipe 4, the drying pipe 4 is connected to an air inlet pipe 5 connected to the collection tank, and desiccant particles are arranged in the drying pipe 4.

[0020] When the present application is in use, first, a mixed gas mixed with water vapor enters the water storage tank 1, wherein the water vapor cools down when it meets water and turns into water, while natural gas is insoluble in water. Therefore, the water vapor content in the mixed gas coming out of the water storage tank 1 is reduced, and then the mixed gas continues to enter the drying tube 4 through the exhaust pipe 3, so that the water vapor in the mixed gas is further absorbed by the desiccant particles in the drying tube 4, thereby ensuring that the gas coming out of the drying tube 4 and entering the intake pipe 5 is natural gas. At the same time, since most of the water vapor in the mixed gas is dissolved in water, very few desiccant particles enter the drying tube 4, thereby reducing the amount of desiccant particles used, saving costs to a certain extent.

[0021] The middle part of the exhaust pipe 3 is connected with a branch pipe 6, the air inlet end of the branch pipe 6 is provided with a first valve 7 and the air outlet end is connected with the air inlet pipe, a drying area is separated by two filter screens 9 in the branch pipe 6, desiccant particles are arranged in the drying area, a feed port 19 and a discharge port 20 are respectively provided on the top surface and the ground of the branch pipe 6, the feed port 19 and the discharge port 20 are located in the drying area and are sealed by a detachable sealing rod, specifically, the feed port 19 and the discharge port 20 are provided with internal threads and are threadedly connected with the sealing rod.

[0022] A second valve 8 is also provided at the outlet end of the exhaust pipe 3. A socket 10 is vertically opened on the top surface of the drying pipe 4. Multiple sockets 10 are provided along the direction of the drying pipe 4. The socket 10 is covered and sealed by an arc plate 11. The arc plate 11 is fixedly connected to the drying pipe 4 by bolts. The arc plate 11 is fixedly connected to a grid box 12. The upper part of the grid box 12 is located in the socket 10 and the bottom surface contacts the inner wall of the bottom surface of the drying pipe 4. Desiccant particles are arranged in the grid box 12. Baffle plates 13 are provided on both sides of the grid box 12. The baffle plates 13 are in contact with the inner wall of the drying pipe 4 and are fixedly connected. The drying pipe 4 is separated from the grid box 12 by the baffle plate 13. After the drying pipe 4 is ventilated for a period of time, the second valve 8 can be closed and the first valve 7 can be opened, so that the mixed gas can circulate through the branch pipe 6 and flow into the intake pipe again, so that the arc plate 11 can be opened and the grid box 12 can be removed from the drying pipe 4 without affecting the normal gas flow, so that the desiccant particles in the drying pipe 4 can be replaced conveniently. At the same time, after the replacement is completed, the arc plate 11 can be closed, and the first valve 7 can be closed and the second valve 8 can be opened, so that the mixed gas can continue to circulate in the drying pipe 4, and the desiccant particles in the branch pipe 6 can be replaced through the feed port 19 and the discharge port 20. Having multiple grid boxes 12 can not only better absorb water vapor, but also only replace the desiccant particles in one grid box 12 at a time, and the grid box 12 at the rear side can be moved forward, and the removed grid box 12 can be placed at the rear after the desiccant particles are replaced, so as to make full use of the desiccant particles.

[0023] The arc plate 11 is vertically provided with a screw hole 14, and the inner thread of the screw hole 14 is matched with a circular plate located at the upper part of the screw hole 14. The circular plate is vertically connected with a rotating rod upward, and the rotating rod passes through the screw hole, so as to facilitate the rotation of the circular plate. The lower part of the screw hole 14 is coaxially connected and connected with a feed pipe 21, and the discharge end of the feed pipe 21 is connected with the grid box 12, and the bottom surface of the grid box 12 is connected with a discharge pipe 15, and a cap 16 is threadedly connected on the discharge pipe 15. A groove is provided on the inner wall of the top surface of the drying tube 4, and the cap 16 is located in the groove. The screw can be rotated out of the screw hole 14 by rotating the screw rod, so that the screw rod can not only play the role of lifting the arc plate 11, but also close the screw hole 14, and the desiccant particles can enter the grid box 12 through the screw hole 14 and the feed pipe 21 and flow out through the discharge pipe 15, so as to realize the replacement of the desiccant particles in the grid box 12.

[0024] The two filter screens 9 are symmetrically arranged along the discharge port 20 and the filter screens 9 are inclined from top to bottom toward the discharge port 20. The inclined arrangement of the filter screens 9 can facilitate the desiccant particles in the branch pipe 6 to be discharged and replaced from the discharge port 20 better.

[0025] The top surface of the water storage tank 1 is provided with a water inlet 17, and the lower part is provided with a water outlet 18, the water outlet 18 is connected with a water outlet pipe, and the water outlet pipe is provided with a water outlet valve, the water inlet 17 is sealed by a cover, and a thermometer capable of measuring the water temperature is provided on the water storage tank 1. The water in the water storage tank 1 can be conveniently replaced through the water inlet 17 and the water outlet 18, thereby ensuring that the water in the water storage tank 1 is cold water, which is convenient for water vapor cooling, and the thermometer can measure the temperature of the water in the water storage tank 1, which is convenient for observing the temperature in the water storage tank 1 and convenient for replacing the water.

[0026] The use of the present application can absorb water vapor twice by first hydrating and then drying, which can not only absorb the water vapor more thoroughly, but also increase the service life of the desiccant and save consumption to a certain extent; at the same time, the desiccant in the drying tube 4 can be replaced by closing the first valve 7 and opening the second valve 8 without affecting the normal exhaust.

[0027] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A low-pressure separator for hydrogenation products, Features: It includes a closed water storage tank and an air outlet pipe connected to the low-pressure separator body. The air outlet end of the air outlet pipe penetrates into the lower part of the water storage tank. The top surface of the water storage tank is connected to one end of an exhaust pipe. The other end of the exhaust pipe is connected to a drying pipe. The drying pipe is connected to an air inlet pipe connected to a collection tank. Desiccant particles are arranged in the drying pipe.

2. The hydrogenation product low-pressure separator according to claim 1, Features: A branch pipe is connected to the middle part of the exhaust pipe, a first valve is provided at the air inlet end of the branch pipe and the air outlet end is connected to the air inlet pipe, a drying area is separated by two filters in the branch pipe, desiccant particles are provided in the drying area, a feed port and a discharge port are respectively provided on the top and bottom surfaces of the branch pipe, the feed port and the discharge port are located in the drying area and are sealed by a detachable sealing rod, a second valve is also provided at the air outlet end of the exhaust pipe, a socket is vertically provided on the top surface of the drying pipe, the socket is sealed by an arc plate, the arc plate is fixedly connected to the drying pipe by bolts, a grid box is fixedly connected to the arc plate, the upper part of the grid box is located in the socket and the bottom surface contacts the inner wall of the bottom surface of the drying pipe, desiccant particles are provided in the grid box, baffle plates are provided on both sides of the grid box, the baffle plates are in contact with the inner wall of the drying pipe and are fixedly connected, and the drying pipe is separated by the baffle plate and the grid box.

3. The hydrogenation product low-pressure separator according to claim 2, Features: A screw hole is vertically opened on the arc plate, and the inner thread of the screw hole is matched with a circular plate located on the upper part of the screw hole. The circular plate is fixedly connected with a rotating rod upward, and the lower part of the screw hole is coaxially connected and connected with a feed pipe. The discharge end of the feed pipe is connected with a grid box, and the bottom of the grid box is connected with a discharge pipe. A cap is threadedly connected to the discharge pipe, and a groove is opened on the inner wall of the top surface of the drying tube, and the cap is located in the groove.

4. The hydrogenation product low-pressure separator according to claim 3, Features: A plurality of sockets are provided along the length direction of the drying tube and corresponding grid boxes are used in the sockets.

5. The hydrogenation product low-pressure separator according to claim 2, Features: The two filter screens are symmetrically arranged along the discharge port and the filter screens are inclined from top to bottom toward the discharge port.

6. The hydrogenation product low-pressure separator according to claim 1, Features: The top surface of the water tank is provided with a water inlet, the lower part is provided with a water outlet, the water outlet is connected with a water outlet pipe, the water outlet pipe is provided with a water outlet valve, the water inlet is sealed by a cover, and the water tank is provided with a thermometer which can measure the water temperature.

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