Self-cleaning condenser with water droplets on the heat exchange surface

Abstract

The present application relates to a kind of self-cleaning condenser of heat exchange surface water drop, including condensing pipe and water removal component;Condensing pipe is horizontally spaced multiple in condensing box, and the condensing pipe of horizontally spaced is longitudinally spaced multiple layers, and the condensing pipe of adjacent two layers is staggered with each other;Water removal component includes two wiper parts and driving part;Two wiper parts are respectively clamped on the condensing pipe of adjacent two, and driving part is located between two wiper parts, and is respectively elastically connected with two wiper parts;Driving part can drive two wiper parts to move along the surface of condensing pipe after being started.Due to the driving part of water removal component can be driven and move along the setting direction of condensing pipe, and water removal component has two oppositely arranged wiper parts, two wiper parts are respectively clamped on the surface of adjacent two condensing pipes, when the water drop gathered on condensing pipe cannot be removed in time, can start driving part to drive two wiper parts to move, to remove the water drop on the surface of condensing pipe, reduce the influence caused by water drop to condensing pipe.

Description

Technical Field

[0001] The invention relates to the technical field of heat exchange, in particular to a condenser capable of self-clearing water drops on a heat exchange surface. Background Art

[0002] The condenser is a heat exchange device that converts exhaust steam from the steam turbine into condensate. After the steam expands and produces work within the turbine, it condenses in the condenser, causing the exhaust volume to shrink dramatically. A high vacuum forms in the space previously filled with steam, and the condensate collects in the condenser's hot well. Powered by a condensate pump, the condensate is then transported to the boiler via a heater and feedwater pump, ensuring the continuity of the entire thermal cycle.

[0003] Traditional condensers insert circular tubes, through which coolant flows, into the condenser shell. These tubes are arranged in a staggered pattern to ensure that steam, after entering the condenser shell from the top, fully contacts the tube surfaces as it passes through them, effectively condensing the high-temperature steam. However, after condensing the steam, traditional condensers often leave a large amount of water droplets on the tube surfaces, which can affect subsequent contact between the steam and the tube surfaces. Summary of the Invention

[0004] Based on this, it is necessary to provide a condenser that can self-clean water droplets from the heat exchange surface to address the above technical problems. The condenser can remove water droplets from the surface of the condenser tube at appropriate times, effectively reducing the impact of water droplets on the condenser tube.

[0005] A condenser capable of self-cleaning water droplets from a heat exchange surface, characterized by comprising:

[0006] A plurality of condensing tubes are horizontally spaced apart in the condensing box, and the horizontally spaced condensing tubes are vertically spaced apart in multiple layers, with the condensing tubes in two adjacent layers being staggered with each other;

[0007] The water removal assembly includes two wiper parts and a drive part; the two wiper parts are respectively clamped on two adjacent condensation tubes, and the drive part is located between the two wiper parts and elastically connected to the two wiper parts; when the drive part is activated, it can drive the two wiper parts to move along the surface of the condensation tube;

[0008] The temperature sensor is located in the lower part of the condensation box and is used to detect the temperature inside the condensation box;

[0009] The host computer is electrically connected to the temperature sensor and the driving unit, and is used to display the temperature signal detected by the temperature sensor in a graphical manner; and start the driving unit when the temperature reaches a first threshold.

[0010] In one of the embodiments, the host computer is configured to display the temperature signals detected by the temperature sensor in a line graph, so as to determine the heat exchange state in the condensing box according to the trend of the line graph, and perform corresponding control.

[0011] In one of the embodiments, when the curve of the line graph shows an upward trend, and the difference between two adjacent temperature signals is greater than the second threshold, the host computer starts the driving part.

[0012] In one of the embodiments, the host computer is further connected with a mobile terminal in communication, the host computer sends the line graph composed of temperature signals to the mobile terminal, receives control instructions sent by the mobile terminal, and performs corresponding control.

[0013] In one of the embodiments, the condensing pipe comprises a bent pipe part and two straight pipe parts; the two ends of the bent pipe part are inclined downward, the two straight pipe parts are coaxially arranged, and the opposite ends of the two straight pipe parts penetrate through the opposite sides of the condensing box, respectively, and the opposite ends of the two straight pipe parts are connected to the two ends of the bent pipe part, respectively.

[0014] In one of the embodiments, the opposite ends of two adjacent condensing pipes are connected to each other, and the connection part of the adjacent condensing pipes is located in the heat exchange box, and the heat exchange box contains cooling liquid.

[0015] In one of the embodiments, the wiper part comprises:

[0016] The sliding block is provided with a clamping groove matched with the surface of the condensing pipe at one end;

[0017] The second positioning block is fixed at the other end of the sliding block and is elastically connected with the driving part through a spring.

[0018] In one of the embodiments, the driving part comprises:

[0019] The fixed block is located between two adjacent second positioning blocks;

[0020] The two first positioning blocks are fixed at the two ends of the fixed block, respectively, and are opposite to two adjacent second positioning blocks, respectively, and are elastically connected with the two second positioning blocks through the spring;

[0021] The driving shaft is connected with the fixed block at one end, and the driving shaft can move axially and drive the fixed block to move along the arrangement direction of the condensing pipe.

[0022] In one of the embodiments, the end of the sliding block provided with the clamping groove is an arc surface end, the middle part of the arc surface end is attached to the surface of the condensing pipe, and the two ends of the arc surface end have a gap with the surface of the condensing pipe.

[0023] In one of the embodiments, the sum of the thicknesses of the two sliding blocks, the two first positioning blocks, the two second positioning blocks and the fixed block is less than the distance between two adjacent condensing pipes.

[0024] The condenser capable of self-removing water droplets on the heat exchange surface has the driving part of the water removing assembly capable of being driven and moving along the arrangement direction of the condensing pipes, and the two oppositely arranged water scraping parts on the water removing assembly are respectively clamped on the surfaces of two adjacent condensing pipes. Therefore, when the water droplets gathered on the condensing pipes cannot be removed in time, the driving part can be started to drive the two water scraping parts to move, so as to remove the water droplets on the surfaces of the condensing pipes, effectively avoiding the water droplets gathered on the condensing pipes and unable to be removed in time, and reducing the influence of the water droplets on the condensing pipes. Meanwhile, the temperature sensor is used to detect the temperature in the condensing box and send the detected temperature signal to the upper computer. The upper computer displays the temperature signal in the form of a chart, so that the relevant staff can intuitively and conveniently observe the temperature change trend in the condenser, thereby inferring the replacement time of the cooling liquid and the starting interval time of the water removing assembly, and contributing to the optimization of the heat exchange effect of the condenser. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the present application or prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative effort.

[0026] Figure 1 It is a structural schematic view of one side of the condenser capable of self-removing water droplets on the heat exchange surface of the present application.

[0027] Figure 2 It is a structural schematic view of the other side of the condenser capable of self-removing water droplets on the heat exchange surface of the present application.

[0028] Figure 3 It is a structural schematic view of one side of the water removing assembly of the condenser capable of self-removing water droplets on the heat exchange surface of the present application.

[0029] Figure 4 It is a structural schematic view of the other side of the water removing assembly of the condenser capable of self-removing water droplets on the heat exchange surface of the present application.

[0030] Figure 5 It is a structural schematic view of the condensing pipe of the condenser capable of self-removing water droplets on the heat exchange surface of the present application.

[0031] Figure 6 It is a connection module diagram of the driving part of the condenser capable of self-removing water droplets on the heat exchange surface of the present application.

[0032] Reference Signs:

[0033] 110, condensing tank; 111, steam inlet; 112, condensed water outlet; 113, air outlet; 120, heat exchange tank; 210, elbow section; 220, straight section; 300, driving section; 310, fixing block; 320, driving shaft; 330, first positioning block; 340, temperature sensor; 410, sliding block; 411, clamping groove; 420, second positioning block; 500, spring; 600, upper computer; 700, mobile terminal. DETAILED DESCRIPTION

[0034] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the following will clearly and completely explain the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of the present application.

[0035] It should be noted that when a component is referred to as being "fixed to" or "set to" another component, it can be directly on the other component or there can be a middle 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 a middle component. The terms "vertical", "horizontal", "upper", "lower", "left", "right", and similar expressions used in the description of the present application are for the purpose of illustration only and do not indicate the only embodiment.

[0036] In addition, the terms "first", "second", etc. are used only for descriptive purposes and should not be construed as indicating or implying relative importance or an indicated number of technical features. Therefore, the features defined as "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise explicitly specified and limited.

[0037] In the present application, unless otherwise explicitly specified and limited, the "on", "under", "above" and "over" of the first feature to the second feature can be that the first feature is in direct contact with the second feature, or the first feature is indirectly in contact with the second feature through an intermediate medium. Moreover, the "on", "above" and "over" of the first feature to the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The "under", "below" and "under" of the first feature to the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0038] Unless otherwise defined, all technical and scientific terms used in the present disclosure 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. All publications, patent applications, patents, and other references mentioned in this specification are herein incorporated by reference in their entirety for the purpose of describing and disclosing, for example, the methodologies described in such publications that might be used in connection with the application.

[0039] The application will be described below with reference to the drawings. Figures 1-6 The application is a condenser with self-cleaning water droplets on the heat exchange surface.

[0040] As shown in Figure 1 , Figure 2 and Figure 6 , in one embodiment, a condenser with self-cleaning water droplets on the heat exchange surface includes a condensing pipe, a water removal assembly, a host computer 600, and a temperature sensor 340; the condensing pipe is arranged horizontally and spaced in the condensing box 110, and the horizontally and spaced condensing pipes are arranged vertically and spaced in multiple layers, with adjacent two layers of condensing pipes interleaved with each other; as shown in Figure 3 and Figure 4 , the water removal assembly includes two wiper parts and a driving part 300; the two wiper parts are respectively clamped on adjacent two condensing pipes, and the driving part 300 is located between the two wiper parts and is respectively elastically connected with the two wiper parts; after the driving part 300 is started, it can drive the two wiper parts to move along the surface of the condensing pipe; the temperature sensor 340 is located in the lower half of the condensing box 110 and is used to detect the temperature in the condensing box 110; the host computer 600 is electrically connected with the temperature sensor 340 and the driving part 300, and is used to display the temperature signal detected by the temperature sensor 340 in a graphical manner; and the driving part 300 is started when the temperature reaches a first threshold value.

[0041] The condenser with self-cleaning water droplets on the heat exchange surface described above, since the driving part 300 of the water removal assembly can be driven and moved along the arrangement direction of the condensing pipe, and the water removal assembly has two oppositely arranged wiper parts which are respectively clamped on the surfaces of adjacent two condensing pipes, when the water droplets gathered on the condensing pipe cannot be removed in time, the driving part 300 can be started to drive the two wiper parts to move, thereby removing the water droplets on the surface of the condensing pipe, effectively avoiding the water droplets gathered on the condensing pipe and unable to be removed in time, and reducing the impact of the water droplets on the condensing pipe. At the same time, the temperature sensor 340 is used to detect the temperature in the condensing box 110 and send the detected temperature signal to the host computer 600, and the host computer 600 displays the temperature signal in a chart form, which can enable the relevant staff to intuitively and conveniently observe the temperature change trend in the condenser, thereby inferring the replacement time of the cooling liquid and the starting interval time of the water removal assembly, and contributing to optimizing the heat exchange effect of the condenser.

[0042] It should be noted that the top end of the condenser 110 is the steam inlet 111, the bottom end of the condenser 110 is the condensed water outlet 112, and the bottom end of the side wall of the condenser 110 is the air outlet 113.

[0043] In one embodiment, the host computer 600 is configured to display the temperature signal detected by the temperature sensor 340 in the form of a line graph, so as to determine the heat exchange state in the condenser 110 according to the change trend of the line graph, and perform corresponding control.

[0044] Specifically, the line graph is more intuitive in expressing the change trend of information than other forms of charts such as bar charts. According to the change trend, the host computer 600 can determine the heat exchange state in the condenser 110, for example, a slow upward trend of the change curve in the line graph represents that the temperature of the cooling liquid in the condenser tube is slowly rising, thereby affecting the condensation of high-temperature steam; or the condensed water droplets on the condenser tube gradually increase, thereby affecting the condensation of high-temperature steam.

[0045] In one embodiment, when the curve of the line graph shows an upward trend and the difference between the two adjacent temperature signals is greater than the second threshold value, the host computer 600 starts the driving part 300.

[0046] Specifically, if the value of the temperature signal at the current time is greater than the value of the temperature signal at the previous time by the second threshold value, it indicates that the temperature in the condenser 110 at the current time is rapidly rising, and therefore it is necessary to immediately remove the water droplets on the condenser tube; or replace or cool the cooling liquid in the condenser tube.

[0047] In one embodiment, the host computer 600 is also in communication connection with the mobile terminal 700. The host computer 600 sends the line graph composed of the temperature signal to the mobile terminal 700, receives the control instruction issued by the mobile terminal 700, and performs corresponding control. Remote control of the condenser can be realized through the mobile terminal 700.

[0048] In one embodiment, the condenser tube comprises a bent pipe portion 210 and two straight pipe portions 220. The two ends of the bent pipe portion 210 are inclined downward, the two straight pipe portions 220 are coaxially arranged, and the opposite ends of the two straight pipe portions 220 respectively penetrate through the opposite sides of the condenser 110, and the opposite ends of the two straight pipe portions 220 are respectively connected to the two ends of the bent pipe portion 210.

[0049] Specifically, since the condensing pipe is composed of the intermediate bent pipe portion 210 and the straight pipe portions 220 at both ends, and the two ends of the bent pipe portion 210 are inclined towards the lower side, the overall structure of the condensing pipe presents an upward protrusion. When the top end of the condensing box 110 enters the hot steam, since the cooling liquid flows through the condensing pipe, when the high-temperature steam contacts the surface of the low-temperature condensing pipe, water droplets are condensed and adhere to the surface of the condensing pipe, and when the water droplets gather to a certain amount, they fall from the condensing pipe. In the embodiment, since the overall structure of the condensing pipe presents an upward protrusion, the water droplets condensed on the surface of the condensing pipe are more likely to slide down the surface of the condensing pipe, avoiding long-term accumulation on the surface of the condensing pipe and affecting the condensation of the steam.

[0050] In one embodiment, two adjacent condensing pipes are connected in series, and the connection between the adjacent condensing pipes is located in the heat exchange box 120, which contains the cooling liquid.

[0051] Specifically, taking the multiple condensing pipes arranged at intervals as an example, the multiple condensing pipes are located in a rectangular space, one end of the condensing pipe at a corner of the rectangle is the cooling liquid inlet, and the other end of the condensing pipe is connected to one end of another condensing pipe adjacent horizontally. When the condensing pipe is connected to another corner of the rectangle, one end of the condensing pipe at the corner is connected to one end of a condensing pipe adjacent vertically. In this way, the ends of the multiple condensing pipes are connected to each other, and the connection pipelines are regular, so that the heat exchange in the heat exchange box 120 is more uniform. At the same time, since the cooling liquid needs to flow through the heat exchange box 120 after passing through each condensing pipe, the temperature of the cooling liquid can be maintained within a certain range, thereby improving the condensation effect of the steam.

[0052] As shown in FIG. 1, Figure 5 In one embodiment, the longitudinal section of the condensing pipe is in a rectangular structure, and the two right-angle ends of the rectangular structure are directed upwards and downwards, respectively.

[0053] Specifically, by arranging the structure of the condensing pipe, the longitudinal section of the condensing pipe is in a rectangular structure. When water droplets are condensed on the surface of the condensing pipe, since the inclination of the edges of the rectangular structure directed upwards and downwards is greater than that of the outer wall of a circular pipe, the rectangular structure is more likely to make the water droplets slide down the surface of the condensing pipe, effectively preventing the water droplets from accumulating on the condensing pipe.

[0054] In one embodiment, the longitudinal section of the condensing pipe is composed of two horizontally symmetrical arc lines.

[0055] Specifically, since the other two right-angle ends of the rectangular structure are horizontally opposite, the water droplets are prone to be retained when sliding to the two right-angle ends, thereby affecting the sliding of the water droplets. In the embodiment, the two right-angle ends of the rectangular structure are provided with rounded corners, that is, the rectangular structure is changed into two arc-shaped lines which are horizontally symmetrical and connected with each other, and the condenser pipe has a better water droplet guiding effect.

[0056] In one embodiment, the wiper part includes a sliding block 410 and a second positioning block 420; the sliding block 410 is provided with a clamping groove 411 at one end which matches the surface of the condenser pipe; the second positioning block 420 is fixed at the other end of the sliding block 410 and is elastically connected with the driving part 300 through a spring 500.

[0057] The driving part 300 includes a fixed block 310, two first positioning blocks 330 and a driving shaft 320; the fixed block 310 is located between the adjacent two second positioning blocks 420; the two first positioning blocks 330 are respectively fixed at the two ends of the fixed block 310 and respectively opposite to the adjacent two second positioning blocks 420 and are elastically connected with the two second positioning blocks 420 through the spring 500; the driving shaft 320 is connected with the fixed block 310 at one end and can move axially and drive the fixed block 310 to move along the setting direction of the condenser pipe.

[0058] Specifically, under normal circumstances, the two first positioning blocks 330 and the two second positioning blocks 420 are supported by the spring 500, so that the two sliding blocks 410 are attached to the surface of the condenser pipe; when it is necessary to remove the water droplets on the surface of the condenser pipe which cannot be removed in time, the driving shaft 320 is operated and moved along the setting direction of the condenser pipe, thereby driving the sliding block 410 to move along the surface of the condenser pipe. Since the overall structure of the condenser pipe is upwardly convex, when the sliding block 410 moves to the structure change position of the condenser pipe, the distance between the two sliding blocks 410 changes, at which time the spring 500 can limit the distance between the two sliding blocks 410, so that the two sliding blocks 410 can always be attached to the surface of the condenser pipe, thereby ensuring the stability of the water removal process.

[0059] In one embodiment, the end of the sliding block 410 provided with the clamping groove 411 is provided with an arc-shaped end, the middle part of the arc-shaped end is attached to the surface of the condenser pipe, and the two ends of the arc-shaped end are spaced apart from the surface of the condenser pipe.

[0060] Specifically, the attachment area between the sliding block 410 and the condenser pipe is effectively reduced, and the interference of the sliding block 410 when moving to the structure change position of the condenser pipe is effectively avoided, so that the movement of the sliding block 410 is smoother.

[0061] In one embodiment, the sum of the thicknesses of the two sliding blocks 410, the two first positioning blocks 330, the two second positioning blocks 420 and the fixed block 310 is less than the distance between two adjacent condensing pipes.

[0062] The technical features of the above embodiments can be combined in any manner. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described, but it should be understood that any combination of the technical features is within the scope of the present disclosure as long as the combination does not result in contradictions.

[0063] The above embodiments only express several implementation manners of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation on the patent scope of the present application. It should be pointed out that, for ordinary skilled persons in the art, several modifications and improvements can be made without departing from the concept of the present application, and these are within the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. A condenser for self-cleaning of water droplets from a heat exchange surface, characterized in that, The application relates to a condensing device. The condensing device comprises a condensing box, a plurality of condensing pipes horizontally and vertically arranged in the condensing box, and a plurality of layers of the condensing pipes longitudinally arranged, wherein the condensing pipes of adjacent two layers are staggered; the condensing pipe comprises a bent pipe part and two straight pipe parts; the two ends of the bent pipe part are inclined downward; the two straight pipe parts are coaxially arranged, and the opposite ends of the two straight pipe parts penetrate through the opposite sides of the condensing box; the opposite ends of the two straight pipe parts are connected to the two ends of the bent pipe part; the two condensing pipes are connected in sequence, and the connection part of the two condensing pipes is located in a heat exchange box; the heat exchange box contains cooling liquid; The water removal assembly comprises two scraping parts and a driving part; the two scraping parts are respectively clamped on the two condensing pipes; the driving part is located between the two scraping parts and is elastically connected to the two scraping parts; the driving part can drive the two scraping parts to move along the surface of the condensing pipe; the scraping part comprises a sliding block and a second positioning block; the sliding block is provided with a clamping groove matched with the surface of the condensing pipe at one end; the second positioning block is fixed at the other end of the sliding block and is elastically connected to the driving part through a spring; the driving part comprises a fixed block, two first positioning blocks and a driving shaft; the fixed block is located between the two second positioning blocks; the two first positioning blocks are respectively fixed at the two ends of the fixed block and are opposite to the two second positioning blocks; the driving shaft is connected to the fixed block at one end and can move axially to drive the fixed block to move along the arrangement direction of the condensing pipe; the end of the sliding block provided with the clamping groove is an arc end; the middle part of the arc end is matched with the surface of the condensing pipe; the two ends of the arc end are spaced from the surface of the condensing pipe; the sum of the thicknesses of the two sliding blocks, the two first positioning blocks, the two second positioning blocks and the fixed block is less than the distance between the two condensing pipes; A temperature sensor is located in the lower half of the condensing box and is used for detecting the temperature in the condensing box; An upper computer is electrically connected to the temperature sensor and the driving part, is used for displaying the temperature signal detected by the temperature sensor in a graphic mode, and is used for judging the heat exchange state in the condensing box according to the change trend of the line graph; when the curve of the line graph shows an upward trend and the difference between the two adjacent temperature signals is greater than a second threshold value, the driving part is started; the upper computer is also in communication connection with a mobile terminal; the upper computer sends the line graph formed by the temperature signal to the mobile terminal, receives the control instruction sent by the mobile terminal, and executes corresponding control; and when the temperature reaches a first threshold value, the driving part is started.

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