A condensate collection device for a drain

Abstract

The application discloses a kind of emptying pipe condensate water collection device, including emptying pipe, condensate water collector, condensate water recovery pipe, annular baffle and water curtain groove;Condensate water collector is located above emptying pipe, and the inside of condensate water collector is provided with a condensate water collection cavity;The caliber of condensate water collection cavity is greater than the caliber of emptying pipe, and one end of emptying pipe is inserted into condensate water collection cavity, and the end of emptying pipe is higher than the bottom of condensate water collection cavity;Annular baffle is fixedly connected inside condensate water collection cavity;Condensate water recovery pipe is installed at the bottom of condensate water collector and is communicated to condensate water collection cavity;Water curtain groove is arranged on the inner wall of the top of condensate water collection cavity, and condensate water collector is provided with water pipe for supplying water to water curtain groove.The application expands flow at condensate water collector and adds annular baffle to realize secondary speed reduction condensation, improves condensation recovery efficiency, and uses water overflowed from water curtain groove to form water curtain for heat exchange, recovers heat.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of metallurgical equipment, in particular to a kind of emptying pipe condensate collecting device. BACKGROUND

[0002] In the production process of alumina, the atmospheric tank containing high-temperature sodium aluminate solution or slurry often causes the pressure in the tank to increase due to solution evaporation, so the top is usually equipped with a vent pipe for discharging the steam volatilized in the tank; the tail of the raw material mill also needs to be discharged outward by a suction fan, so a vent pipe is also provided; the filter machine in the entire production process needs to be filtered by a vacuum pump, and the tail gas discharged by the filter is also discharged through a vent pipe; the steam discharged by these vent pipes has a common characteristic: high temperature (above 80℃), low alkali concentration, and fast flow rate. The steam suddenly expands at the outlet of the vent pipe, easily condensing into water mist, and the condensed water mist with low alkali concentration falls to the ground, affecting the environment and easily entering the production post, affecting production. Therefore, the discharge port of the vent pipe needs to be modified and a condensate collecting device needs to be added.

[0003] The patent document with application number CN201320220761.9 discloses an acid mist condensation recovery tower, which includes a comprehensive reaction tank, the upper end of the comprehensive reaction tank is connected to a condensation tower, the top of the condensation tower is provided with an exhaust pipe, the top inner wall of the condensation tower is provided with a plurality of condensation pieces, the top of the condensation tower is provided with a circulating cooling water interlayer, the inner wall of the condensation tower is provided with a plurality of guide grooves, and the bottom of the condensation tower is provided with a liquid storage tank. The structure is simple and can effectively reduce air pollution. If the vent pipe is modified using the above-mentioned equipment, the heat of the high-temperature steam in the vent pipe cannot be effectively recovered, resulting in energy waste, therefore, a vent pipe condensate collecting device needs to be designed to solve the above-mentioned technical problems. SUMMARY

[0004] The present application provides a kind of emptying pipe condensate collecting device, in condensate collector place expansion and additional annular baffle plate realize secondary speed reduction condensation, improve condensation recovery efficiency, water curtain groove overflow water is used to form water curtain to cool inner wall simultaneously, and heat exchange with steam, recover heat.

[0005] To achieve the above-mentioned purposes, the technical scheme adopted by the present application is as follows:

[0006] The application discloses a condensate water collecting device for exhaust pipe, which comprises an exhaust pipe, a condensate water collector, a condensate water recovery pipe and an annular baffle; the exhaust pipe is vertically arranged upwards; the condensate water collector is arranged above the exhaust pipe; an inner part of the condensate water collector is provided with a condensate water collecting cavity; the condensate water collecting cavity has a larger diameter than the exhaust pipe; one end of the exhaust pipe is inserted into the condensate water collecting cavity; the end of the exhaust pipe is higher than the bottom of the condensate water collecting cavity; the annular baffle is fixedly connected to the inner part of the condensate water collecting cavity; the condensate water recovery pipe is installed at the bottom of the condensate water collector and is communicated with the condensate water collecting cavity; a water curtain groove is arranged on the top inner wall of the condensate water collecting cavity; and the condensate water collector is provided with a water pipe for supplying water to the water curtain groove.

[0007] Further, the condensate water collector is provided with a tubular structure; the bottom of the condensate water collector is provided with a cover to form the condensate water collecting cavity; the cover is provided with an air inlet; the exhaust pipe is inserted into the air inlet and passes through the cover; and the air inlet is sealingly connected to the outer wall of the exhaust pipe.

[0008] Further, a plurality of connecting blocks are fixedly connected to the top outer periphery of the annular baffle at equal angles; the connecting blocks are fixedly connected to the inner wall of the condensate water collector; and the outer periphery of the annular baffle is arranged to be spaced apart from the inner wall of the condensate water collector to form an annular drainage hole.

[0009] Further, the annular baffle can also be provided with a conical structure formed by abutting two fan-shaped plates; and the annular baffle is arranged to be inclined with the inner side being higher than the outer side.

[0010] Further, a plurality of annular baffles are arranged to be spaced apart on the inner wall of the condensate water collector.

[0011] Further, the bottom of the condensate water collecting cavity is provided with an inclined surface; and the condensate water recovery pipe is arranged at the lowest end of the inclined surface.

[0012] Further, the water curtain groove comprises an annular water groove and an annular connecting frame; the opening end of the annular water groove is arranged to be lower on the outer side and higher on the inner side; the outer periphery of the annular water groove is closely arranged to the inner wall of the condensate water collecting cavity; the inner side of the annular water groove is fixedly connected to the inner bottom of the annular connecting frame; the outer side of the annular connecting frame is fixedly connected to the inner wall of the condensate water collector; and the water pipe extends into the annular water groove.

[0013] The application has the following beneficial effects:

[0014] 1) This invention designs a condensate collector at the inlet of the vent pipe, allowing high-temperature steam to suddenly expand when it enters the condensate collector, achieving the first deceleration condensation. An annular baffle is added to the inner wall of the condensate collector to achieve the second deceleration condensation, improving the condensation recovery efficiency. At the same time, a water curtain trough is set on the inner wall of the condensate collector, and the water overflowing from the water curtain trough forms a water curtain to exchange heat with the steam and recover heat. Since the inlet of the vent pipe is higher than the bottom of the condensate collector, it can prevent the condensate that has accumulated at the bottom from falling into the vent pipe. The condensate is finally recovered by the condensate recovery pipe.

[0015] 2) Several drainage holes are opened at equal angles on the annular baffle plate to allow condensate to flow down along the drainage holes, so as to achieve the purpose of smooth collection of condensate.

[0016] 3) The annular baffle plate is inclined with the inner side higher than the outer side, allowing the attached condensate to flow along the inclined plate surface to the drain hole, which is more conducive to the collection of condensate.

[0017] 4) The bottom of the condensate collection chamber is set as an inclined surface, and the condensate recovery pipe is located at the lowest end of the inclined surface 22. The collected condensate flows through the inclined surface to the lowest part of the condensate collector, and then enters the production return water system through the condensate recovery pipe at the lowest end. For example, it can be used for the red mud washing process. This can prevent condensate from accumulating in the condensate collector, eliminating the need for manual drainage, and at the same time, reuse this part of the water, saving resources.

[0018] 5) When the water in the annular water tank is full, it overflows onto the inner wall of the condensate collector and flows down the inner wall to form a water curtain, carrying away the condensate attached to the inner wall. At the same time, it can cool down the condensate collector and exchange heat with the steam to recover the heat of the steam. Attached Figure Description

[0019] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings, wherein:

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 This is a perspective view of the annular baffle in this invention;

[0022] Figure 3 This is a side view of the annular baffle in this invention;

[0023] Figure 4 This is a schematic diagram of the annular baffle plate from a top-down perspective in this invention;

[0024] Figure 5 This is a perspective view of the water curtain trough in this invention;

[0025] Figure 6A sectional view of a water curtain groove in the present application;

[0026] Reference signs:

[0027] 1 - drain pipe, 2 - condensate collector, 3 - condensate recovery pipe, 4 - annular baffle, 5 - water curtain groove, 21 - condensate collection cavity, 22 - inclined surface, 23 - water pipe, 41 - connecting block, 51 - annular water groove, 52 - annular connecting frame. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0029] It should be noted that when a component is referred to as being "fixed" to another component, it can be directly on the other component or there can be an intervening component. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or there can be an intervening component. When a component is referred to as being "disposed on" another component, it can be directly disposed on the other component or there can be an intervening component. When a component is referred to as being "disposed in the middle", it is not only disposed in the middle position, but also disposed in the range defined by the two ends. The terms "vertical", "horizontal", "left", "right", and the like used herein are for illustrative purposes only.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0031] Reference Figures 1 to 6 As shown in the figure, a drain pipe condensate collecting device includes a drain pipe 1, a condensate collector 2, a condensate recovery pipe 3, an annular baffle 4, and a water curtain groove 5.

[0032] The evacuation pipe 1 is arranged vertically upward, the bottom of the evacuation pipe 1 is connected with a vacuum pump, or an air extractor, or a normal pressure tank containing high-temperature sodium aluminate solution or slurry; the condensate water collector 2 is located above the evacuation pipe 1; the condensate water collector 2 is provided in a tubular structure and coaxially arranged with the evacuation pipe 1, the bottom of the condensate water collector 2 is covered to form the condensate water collecting cavity 21 in the pipe, the caliber of the condensate water collecting cavity is larger than the caliber of the evacuation pipe 1, so that the steam is suddenly expanded at the outlet of the evacuation pipe 1 to realize the first speed reduction and rapidly condenses into water; an air inlet is arranged on the cover, one end of the evacuation pipe 1 is inserted into the air inlet and beyond the cover, the circumferential side of the air inlet is welded and sealed with the outer wall of the evacuation pipe, so that the end of the evacuation pipe 1 is higher than the bottom of the condensate water collecting cavity 21, and the condensed water does not fall into the evacuation pipe 1 when flowing down the inner wall of the condensate water collector 2.

[0033] A plurality of connecting blocks 41 are fixedly connected on the top outer circumferential side of the annular baffle 4, and the connecting blocks 41 are fixedly connected with the inner wall of the condensate water collector 2 during installation. The condensed water adheres to the annular baffle 4 and flows down along the annular baffle, therefore, the outer circumferential side of the annular baffle 41 is arranged in a spaced manner with the inner wall of the condensate water collector to form an annular drain hole 41 for the condensed water to flow down along the drain hole 41 to achieve smooth collection of the condensed water; meanwhile, the annular baffle 4 can further reduce the flow speed of the water vapor to achieve the function of secondary condensation into water. The number of the annular baffles 4 is several, and the annular baffles 4 are arranged in a spaced manner on the inner wall of the condensate water collector 2. The speed reduction through the multiple layers of annular baffles 4 can further improve the condensation effect.

[0034] Please refer to Figure 2 The annular baffle 4 can also be provided in a conical structure surrounded by the butt joint of the two sides of the fan-shaped plate, so that the annular baffle 4 is in an inclined state with the inside higher and the outside lower, and the inclination angle can be designed as 30°, so that the adhered condensed water can flow to the drain hole 41 along the inclined plate surface, which is more conducive to the collection of the condensed water.

[0035] The condensate water recovery pipe 3 is installed at the bottom of the condensate water collector 2 and communicates with the condensate water collecting cavity 21, the bottom of the condensate water collecting cavity 21 is provided with a slope 22, and the condensate water recovery pipe 3 is located at the lowest end of the slope 22, and the other end of the condensate water recovery pipe 3 can be connected to a red mud washing water pipeline. The collected condensed water is collected at the lowest part of the condensate water collector 2 through the slope and enters the production water return system through the condensate water recovery pipe 3 at the lowest end, such as a red mud washing water process for reuse, which can avoid the accumulation of condensed water in the condensate water collector 2 and does not need to be manually discharged, and at the same time, the water is reused to save resources.

[0036] The water curtain groove 5 is arranged on the top inner wall of the condensate water collecting cavity 21, and the condensate water collector 2 is provided with a water pipe 23 for supplying water to the water curtain groove 5. The water curtain groove 5 comprises a ring-shaped water groove 51 and a ring-shaped connecting frame 52. The opening end of the ring-shaped water groove 51 is in a structure of lower outside and higher inside, and the outer periphery of the ring-shaped water groove 51 is tightly attached to the inner wall of the condensate water collecting cavity. The inner side of the ring-shaped water groove 51 is fixedly connected to the inner bottom of the ring-shaped connecting frame 32, and the outer side of the ring-shaped connecting frame 52 is fixedly connected to the inner wall of the condensate water collector by welding. The water pipe 23 extends into the ring-shaped water groove 51. When the water in the ring-shaped water groove 51 overflows, it overflows to the inner wall of the condensate water collector 2 and flows down along the inner wall to form a water curtain, which can cool the condensate water collector 2 and exchange heat with steam to recover the heat of the steam, carry away the condensate water attached below, and avoid the corrosion of the condensate water collector 2 caused by the long-time attachment of the condensate water.

[0037] The present application designs the condensate water collector 2 at the pipe opening of the exhaust pipe 1, so that the high-temperature steam suddenly expands when entering the condensate water collector 2, realizing the first speed reduction and condensation. The ring-shaped baffle 4 is additionally arranged on the inner wall of the condensate water collector 2 to realize the second speed reduction and condensation, improving the condensation and recovery efficiency. Meanwhile, the water curtain groove is arranged on the inner wall of the condensate water collector 3, the inner wall of the condensate collector is washed by the water curtain, and the condensate collector is cooled, which is beneficial to the heat exchange with steam and the recovery of heat. Meanwhile, the water curtain makes the attached condensate water flow smoothly to the bottom. Since the pipe opening of the exhaust pipe 1 is higher than the bottom of the condensate water collector 2, the condensate water gathered at the bottom can be prevented from falling into the exhaust pipe 1, and the condensate water is finally recovered by the condensate water recovery pipe 3.

[0038] The above examples are only used to illustrate the technical solutions of the present application and not to limit it. Any modification or equivalent replacement within the spirit and scope of the present application should be covered in the scope of the technical solutions of the present application.

Claims

1. A condensate collection device for an empty pipe, characterized in that, The device includes an empty pipe, a condensate collector, a condensate recovery pipe, an annular baffle plate, and a water curtain trough. The empty pipe is arranged vertically upwards, and the condensate collector is located above the empty pipe. The condensate collector has a condensate collection chamber inside. The diameter of the condensate collection chamber is larger than the diameter of the empty pipe. One end of the empty pipe is inserted into the condensate collection chamber, and the end of the empty pipe is higher than the bottom of the condensate collection chamber. The annular baffle plate is fixedly connected inside the condensate collection chamber. The condensate recovery pipe is installed at the bottom of the condensate collector and connects to the condensate collection chamber. The water curtain trough is located on the inner side of the top of the condensate collection chamber, and the condensate collector has a water pipe that supplies water to the water curtain trough. The condensate collector is configured as a tubular structure, and the bottom cover of the condensate collector forms the condensate collection chamber; the cover is provided with an air inlet, and the exhaust pipe is inserted from the air inlet and passes through the cover, and the periphery of the air inlet is sealed to the outer wall of the exhaust pipe. A plurality of connecting blocks are fixedly connected at equal angles on the top outer periphery of the annular baffle plate. The plurality of connecting blocks are fixedly connected to the inner wall of the condensate collector. The outer periphery of the annular baffle plate and the inner wall of the condensate collector are arranged at intervals to form annular drainage holes. The annular baffle is designed as a conical structure formed by the two sides of a fan-shaped plate joining together, so that the annular baffle is inclined with the inner side higher than the outer side. The water curtain trough includes an annular water tank and an annular connecting frame; the opening end of the annular water tank has a structure with the outer side lower and the inner side higher, and the outer periphery of the annular water tank is in close contact with the inner wall of the condensate collection chamber; the inner side of the annular water tank is fixedly connected to the inner bottom of the annular connecting frame, and the outer side of the annular connecting frame is fixedly connected to the inner wall of the condensate collector; the water pipe extends into the annular water tank.

2. The condensate collection device for a drain pipe according to claim 1, characterized in that, The number of annular baffles is set to several, and the several annular baffles are arranged at intervals on the inner wall of the condensate collector.

3. The condensate collection device for a drain pipe according to claim 1, characterized in that, The bottom of the condensate collection chamber is set as an inclined surface, and the condensate recovery pipe is located at the lowest end of the inclined surface.

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