Condenser for rectifying tower

Abstract

The condenser comprises an outer wall body, a cooling tank, a circulating water pipe, a circulating water pump and an atomization sprayer, the outer wall body is longitudinally arranged on one side of the rectifying tower, the cooling tank is arranged in the middle of the outer wall body, and first air inlets are evenly formed in the side wall of the bottom of the outer wall body; a water collecting cover is arranged at the top end of the outer wall body, a first air outlet is formed in the top of the water collecting cover, a second air inlet and a liquid phase product outlet are formed in the bottom of the cooling tank, a second air outlet is formed in the top of the cooling tank, and the circulating water pipes are evenly arranged on the inner side of the outer wall body. The circulating water pump is arranged at the bottom of the outer wall body, the circulating water pump is communicated with the circulating water pipe, and the atomizing nozzle is arranged on the circulating water pipe. According to the invention, the gas-phase feed liquid in the cooling tank can be cooled from inside and outside at the same time, and the condensation efficiency of the feed liquid is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of condensers, and in particular relates to a condenser for a distillation tower. Background Art

[0002] A distillation tower is a tower-type gas-liquid contact device for distillation. By utilizing the different volatilities of the components in the mixture, that is, the different vapor pressures of the components at the same temperature, the light components (low-boiling substances) in the liquid phase are transferred to the gas phase, and the heavy components (high-boiling substances) in the gas phase are transferred to the liquid phase, thereby achieving the purpose of separation. The high-temperature gas generated during the distillation process needs to be heat exchanged through a condenser.

[0003] Chinese utility model patent CN 219681719 U discloses a distillation tower condenser, which is configured as a vertical structure, thereby saving the space occupied by the condenser, and dispersing the steam through a diverter pipe to increase the contact area with the coolant. However, the condenser still has the problem of untimely heat exchange between the steam and the coolant, resulting in low condensation efficiency.

[0004] Therefore, how to propose a condenser for a distillation tower with higher heat exchange efficiency has become a technical problem that technical personnel in this field need to solve urgently. Summary of the invention

[0005] In view of this, the present invention provides a condenser for a distillation tower, which can overcome the above-mentioned shortcomings of the prior art. Through simultaneous internal and external heat exchange, the heat of the gas phase liquid in the condenser can be more easily dissipated, thereby improving the heat exchange efficiency of the condenser.

[0006] In order to achieve the above object, the present invention adopts the following technical solution:

[0007] A condenser for a distillation tower comprises an outer wall body, a cooling tank, a circulating water pipe, a circulating water pump and an atomizing nozzle, wherein the outer wall body is longitudinally arranged on one side of the distillation tower, the cooling tank is arranged in the middle of the outer wall body, the bottom side wall of the outer wall body is evenly provided with a first air inlet, the top of the outer wall body is provided with a water collecting hood, the top of the water collecting hood is provided with a first air outlet, the bottom of the cooling tank is provided with a second air inlet and a liquid product outlet, the top of the cooling tank is provided with a second air outlet, the circulating water pipe is evenly arranged on the inner side of the outer wall body, the circulating water pump is arranged at the bottom of the outer wall body, the circulating water pump is connected to the circulating water pipe, and the atomizing nozzle is arranged on the circulating water pipe.

[0008] Furthermore, the cooling tank is made of a heat-conducting material, and the surface of the cooling tank is textured to improve the adsorption of water droplets.

[0009] Furthermore, an air filter is provided at the first air inlet.

[0010] Furthermore, the interior of the cooling tank is provided with a first diverter plate, a diverter pipe, a second diverter plate and a liquid collecting tank, the first diverter plate is arranged at the top of the cooling tank, the first diverter plate is connected with the refrigerant pipe, the second diverter plate is arranged at the bottom of the cooling tank, the bottom end of the second diverter plate is conical, the diverter pipe is arranged between the first diverter plate and the second diverter plate, the diverter pipe is connected with the first diverter plate and the second diverter plate, the liquid collecting tank is arranged below the second diverter plate, and the liquid product outlet is connected with the liquid collecting tank.

[0011] Furthermore, a liquid guide plate is arranged between the upper edge of the liquid collecting box and the cooling tank, the liquid guide plate is arranged obliquely, and a plurality of air guide holes are arranged on the surface of the liquid guide plate.

[0012] Furthermore, an annular protrusion is provided on the edge of the air guide hole to prevent condensed liquid from flowing into the air guide hole.

[0013] Furthermore, a retention chamber is provided at the bottom end of the cooling tank, an arc-shaped guide plate opening downward is provided inside the retention chamber, and the top end of the arc-shaped guide plate is connected to the liquid collecting tank.

[0014] Furthermore, the top of the arc-shaped guide plate is fixedly connected to the liquid storage box via a heat insulation plate.

[0015] The beneficial effects of the present invention are:

[0016] 1. The present invention improves the heat exchange efficiency and accelerates the condensation of gas phase liquid by arranging cooling mechanisms both inside and outside the cooling tank. The arrangement of the outer wall cleverly utilizes the chimney effect and takes away the heat absorbed by the water droplets on the surface of the cooling tank through the rapid circulation of airflow;

[0017] 2. The air filter of the present invention can prevent dust and impurities from being brought into the outer wall when air enters, which is beneficial to maintaining the cleanliness of the circulating water;

[0018] 3. The arrangement of the flow divider of the present invention can increase the contact area between steam and refrigerant and improve the heat exchange effect;

[0019] 4. The setting of the retention chamber of the present invention can increase the retention time of the gas phase liquid at the bottom of the cooling tank, increase the temperature of the retention chamber, and contribute to the occurrence of the chimney effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the main structure of the present invention;

[0021] Figure 2 It is a cross-sectional view of the present invention;

[0022] Figure 3 for Figure 2 A partial enlarged view of the middle part;

[0023] Figure 4 It is a schematic diagram of the structure of the liquid collecting tank of the present invention;

[0024] Figure 5 It is a cross-sectional view of the outer wall of the liquid collecting tank of the present invention.

[0025] In the figure: 1-outer wall, 2-cooling tank, 3-circulating water pipe, 4-circulating water pump, 5-atomizing nozzle, 6-air filter, 7-water collecting cover, 8-first air outlet; 9-first air inlet; 10-second air inlet; 11-liquid product outlet; 12-second air outlet; 13-first diverter plate; 14-diverter pipe; 15-second diverter plate; 16-liquid collecting box; 17-liquid guide plate; 18-air guide hole; 19-retention chamber; 20-arc guide plate; 21-heat insulation board. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0027] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "horizontal", "inner", "outer", "one side", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention; the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or a circuit connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] Example 1

[0029] like Figure 1-5As shown, this embodiment discloses a condenser for a distillation tower, comprising an outer wall body 1, a cooling tank 2, a circulating water pipe 3, a circulating water pump 4 and an atomizing nozzle 5. The outer wall body 1 is longitudinally arranged on one side of the distillation tower, the cooling tank 2 is arranged in the middle of the outer wall body 1, and the bottom side wall of the outer wall body 1 is evenly provided with a first air inlet 9, and an air filter 6 is arranged at the first air inlet 9 to prevent impurities in the air from entering the wall body, a water collecting cover 7 is arranged at the top of the outer wall body 1, and a first air outlet 8 is arranged at the top of the water collecting cover 7. The water collecting cover 7 is arranged for collecting water molecules to avoid the loss of circulating water, a second air inlet 10 and a liquid product outlet 11 are arranged at the bottom of the cooling tank 2, and a second air outlet 12 is arranged at the top of the cooling tank 2. The circulating water pipe 3 is evenly arranged on the inner side of the outer wall body 1, the circulating water pump 4 is arranged at the bottom of the outer wall body 1, the circulating water pump 4 is connected to the circulating water pipe 3, and the atomizing nozzle 5 is arranged on the circulating water pipe 3. By arranging an outer wall body 1 and a circulating water pipe 3 outside the cooling tank 2, the cooling tank 2 and the outer wall body 1 can be used to form a chimney effect. The circulating water pump 4 sprays cooling water onto the surface of the cooling tank 2 through the atomizing nozzle 5. The large specific heat and strong heat absorption capacity of water molecules are utilized to make it easier for the heat in the cooling tank 2 to dissipate, and then the heat is taken away by the fast-flowing air. The present invention simultaneously cools the gas-phase feed liquid through the cooling mechanism in the cooling tank 2 and the cooling device outside the cooling tank 2, thereby greatly accelerating the condensation speed of the feed liquid.

[0030] As a preferred embodiment of the present invention, a liquid level sensor and a water replenishment port (not shown in the figure) are also provided at the bottom end of the outer wall body 1 for replenishing circulating water.

[0031] As a preferred embodiment of the present invention, the cooling tank 2 is made of a heat-conducting material, and the surface of the cooling tank 2 is textured to improve the adsorption of water droplets.

[0032] Specifically, the interior of the cooling tank 2 is provided with a first diverter plate 13, a diverter pipe 14, a second diverter plate 15 and a liquid collecting box 16. The first diverter plate 13 is arranged at the top of the cooling tank 2, and the first diverter plate 13 is connected to the outlet of the refrigerant pipe. The second diverter plate 15 is arranged at the bottom of the cooling tank 2. The bottom end of the second diverter plate 15 is conical and is connected to the inlet of the refrigerant pipe. The diverter pipe 14 is arranged between the first diverter plate 13 and the second diverter plate 15. The diverter pipe 14 is connected to the first diverter plate 13 and the second diverter plate 15. Through the setting of the diverter pipe 14, the contact area between the gas phase liquid in the cooling tank 2 and the diverter pipe 14 is increased, and the heat exchange efficiency is improved. The setting of the conical second diverter plate 15 facilitates the downward flow of the condensed liquid.

[0033] The liquid collecting box 16 is arranged below the second diverter plate 15, and a liquid guide plate 17 is arranged on the upper edge of the liquid collecting box 16. The liquid guide plate 17 is fixedly connected to the cooling tank 2, and the liquid guide plate 17 is arranged at an angle. A plurality of air guide holes 18 are arranged on the surface of the liquid guide plate 17, and the liquid product outlet 11 is connected to the bottom end of the liquid collecting box 16. The arrangement of the liquid guide plate 17 enables the condensed liquid to flow into the liquid collecting box 16 along the surface of the cooling tank 2, and the arrangement of the air guide holes 18 enables the gaseous liquid to flow upward, and an annular protrusion is arranged on the edge of the air guide hole 18 to prevent the condensed liquid from flowing into the air guide hole 18.

[0034] As a preferred embodiment of the present invention, a retention chamber 19 is provided at the bottom end of the cooling tank 2. The retention chamber 19 is a conical structure that is thick at the bottom and thin at the top. An arc-shaped guide plate 20 opening downward is provided inside the retention chamber 19. The top of the arc-shaped guide plate 20 is fixedly connected to the liquid collecting tank 16 through an insulation plate 21. The arrangement of the arc-shaped guide plate 20 can increase the time that the gas-phase liquid stays in the retention chamber 19, increase the temperature of the retention chamber 19, and accelerate the generation of the chimney effect.

[0035] Although the above describes the specific implementation mode of the present invention in conjunction with the accompanying drawings, it is not intended to limit the scope of protection of the present invention. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art on the basis of the technical solution of the present invention without creative work are still within the scope of protection of the present invention.

Claims

1. A condenser for a distillation tower, characterized in that: It includes an outer wall body, a cooling tank, a circulating water pipe, a circulating water pump and an atomizing nozzle, wherein the outer wall body is longitudinally arranged on one side of the distillation tower, the cooling tank is arranged in the middle of the outer wall body, the bottom side wall of the outer wall body is evenly provided with a first air inlet, the top of the outer wall body is provided with a water collecting cover, the top of the water collecting cover is provided with a first air outlet, the bottom of the cooling tank is provided with a second air inlet and a liquid product outlet, the top of the cooling tank is provided with a second air outlet, the circulating water pipe is evenly arranged on the inner side of the outer wall body, the circulating water pump is provided at the bottom of the outer wall body, the circulating water pump is connected with the circulating water pipe, and the atomizing nozzle is provided on the circulating water pipe.

2. A condenser for a distillation tower according to claim 1, characterized in that: The cooling tank is made of a heat-conducting material, and the surface of the cooling tank is textured to improve the adsorption of water droplets.

3. A condenser for a distillation tower according to claim 1, characterized in that: An air filter is arranged at the first air inlet.

4. A condenser for a distillation tower according to claim 1, characterized in that: The interior of the cooling tank is provided with a first diverter plate, a diverter pipe, a second diverter plate and a liquid collecting tank. The first diverter plate is arranged at the top of the cooling tank, the first diverter plate is connected with the refrigerant pipe, the second diverter plate is arranged at the bottom of the cooling tank, the bottom end of the second diverter plate is conical, the diverter pipe is arranged between the first diverter plate and the second diverter plate, the diverter pipe is connected with the first diverter plate and the second diverter plate, the liquid collecting tank is arranged below the second diverter plate, and the liquid product outlet is connected with the liquid collecting tank.

5. A condenser for a distillation tower according to claim 4, characterized in that: A liquid guide plate is arranged between the upper edge of the liquid collecting box and the cooling tank. The liquid guide plate is arranged obliquely, and a plurality of air guide holes are arranged on the surface of the liquid guide plate.

6. A condenser for a distillation tower according to claim 5, characterized in that: The edge of the air guide hole is provided with an annular protrusion to prevent condensed liquid from flowing into the air guide hole.

7. A condenser for a distillation tower according to claim 4, characterized in that: The bottom end of the cooling tank is provided with a retention cavity, the interior of the retention cavity is provided with an arc-shaped guide plate opening downward, and the top end of the arc-shaped guide plate is connected to the liquid collecting tank.

8. A condenser for a distillation tower according to claim 7, characterized in that: The top of the arc-shaped guide plate is fixedly connected to the liquid storage box via a heat insulation plate.

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