Defoaming device for steam type scraper evaporator

Abstract

The utility model relates to the related technical field of evaporator auxiliary equipment, in particular to a defoaming device for a steam type scraper evaporator, which comprises an evaporator tank body, and a defoaming mechanism is arranged on the inner side surface of the evaporator tank body. According to the defoaming device for the steam type scraper evaporator, through the arrangement of the defoaming mechanism, when the defoaming device is used, equipment runs and foams reach a set early warning height, a valve is opened, a defoaming agent in a defoaming agent box is conveyed to an annular pipe through a connecting pipe and is sprayed into a tank through an atomizing spray head, the defoaming agent reduces the surface tension of the foams by virtue of the characteristics of the defoaming agent, and the foams are uniformly dispersed; the defoaming mechanism is convenient to operate, daily maintenance and use are facilitated, the ultrasonic foam sensor senses the foam, the defoaming process is rapidly triggered, the foam is effectively inhibited, a good foam-free working environment is continuously maintained for the evaporator tank body, and the defoaming effect is good. And the product yield and the economic benefit are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to evaporator auxiliary equipment related technical field especially, it relates to a defoaming device for steam type scraper evaporator. BACKGROUND

[0002] Steam type scraper evaporator is widely used in solution concentration, material separation and other process in chemical industry, food industry, pharmaceutical industry and many other industrial fields, and the scraper evaporator is a new type of evaporator with strong adaptability, for example, it is suitable for high viscosity, heat-sensitive and easy crystallization, scale forming materials, when the evaporator is running, the material is heated to boil, the gas-liquid is violently rolled and the mechanical agitation of the scraper is combined, a large amount of foam is easily produced, the foam occupies the internal space of the evaporator, reduces the effective evaporation volume, hinders the normal rising of the steam, and causes the heat and mass transfer efficiency to be greatly discounted, therefore, a defoaming device for steam type scraper evaporator is particularly needed.

[0003] However, the existing steam type scraper evaporator usually simply relies on adjusting operation process parameters such as temperature, pressure and feed flow rate to solve the problem of foam, the effect is limited, and the adjustment space is greatly limited by the production process, so it is difficult to effectively inhibit the foam fundamentally. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a defoaming device for steam type scraper evaporator to solve the problem that the existing steam type scraper evaporator is usually simply adjusted by operation process parameters such as temperature, pressure and feed flow rate to solve the problem of foam, the effect is limited, and the adjustment space is greatly limited by the production process, so it is difficult to effectively inhibit the foam fundamentally.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: a defoaming device for steam type scraper evaporator, including evaporator tank body, the outside surface of evaporator tank body is fixedly connected with feed inlet, the inside surface of evaporator tank body is provided with stirring mechanism, the inside surface of evaporator tank body is provided with defoaming mechanism;

[0006] The defoaming mechanism includes a fixed block, an annular pipe, an atomizing nozzle, a connecting pipe, a defoaming agent tank, a support plate, an observation plate, a limiting groove, a limiting block, a cover plate, a handle, an ultrasonic foam sensor and a valve, the inner side surface of the evaporator tank body is fixedly connected with the fixed block, the inner side surface of the fixed block is fixedly connected with the annular pipe, the outer side surface of the annular pipe is fixedly connected with the atomizing nozzle, the outer side surface of the annular pipe is fixedly connected with the connecting pipe, one end surface of the connecting pipe is fixedly connected with the defoaming agent tank, the lower surface of the defoaming agent tank is fixedly connected with the support plate, one side surface of the defoaming agent tank is fixedly connected with the observation plate, the inner side surface of the defoaming agent tank is provided with the limiting groove, the inner side surface of the limiting groove is slidably connected with the limiting block, one side surface of the limiting block is fixedly connected with the cover plate, one side surface of the cover plate is fixedly connected with the handle, the inner side surface of the evaporator tank body is fixedly connected with the ultrasonic foam sensor, and the outer side surface of the connecting pipe is fixedly connected with the valve.

[0007] Preferably, the fixed block is provided with multiple groups at equal intervals on the inner side surface of the evaporator tank body, and the atomizing nozzle is provided with multiple groups at equal intervals on the outer side surface of the annular pipe.

[0008] Preferably, the support plate is fixedly connected with the evaporator tank body, and the bottom of the defoaming agent tank is inclined.

[0009] Preferably, the inner side dimension of the limiting groove is consistent with the outer side dimension of the limiting block, and the limiting block is provided with two groups symmetrically about the central axis of the cover plate.

[0010] Preferably, the stirring mechanism includes a first motor, a rotating shaft, a connecting rod, a scraper, a support rod and a limiting ring, the upper surface of the evaporator tank body is fixedly connected with the first motor, one end surface of the first motor is fixedly connected with the rotating shaft, the outer side surface of the rotating shaft is fixedly connected with the connecting rod, one end surface of the connecting rod is fixedly connected with the scraper, the outer side surface of the rotating shaft is fixedly connected with the support rod, and one end surface of the support rod is fixedly connected with the limiting ring.

[0011] Preferably, the connecting rod is provided with two groups on the two end surfaces of the scraper, and the scraper is provided with multiple groups.

[0012] Preferably, the limiting ring is provided with two groups, and the outer side dimension of the limiting ring is consistent with the inner side dimension of the evaporator tank body.

[0013] Compared with the prior art, the steam type defoaming device for the scraper evaporator has the advantages that: when the equipment is running, the ultrasonic foam sensor monitors the foam condition in the evaporator tank in real time, when the foam reaches the set early warning height, the signal transmission opens the valve on the connecting pipe, the valve opening makes the passage between the defoamer tank and the annular pipe unobstructed, the defoamer in the defoamer tank is transported to the annular pipe through the connecting pipe, and then is evenly distributed by the annular pipe, and then is sprayed into the foam layer in the tank by the atomizing nozzle in mist form, the defoamer reduces the surface tension of the foam by its own characteristics, destroys the stability of the foam to make it break and dissipate, the remaining amount of the defoamer in the tank can be observed through the observation plate, when the remaining amount is insufficient, the handle can be held to move, the cover plate is opened to supplement the defoamer, the defoaming mechanism is convenient to operate, is convenient for daily maintenance and use, the ultrasonic foam sensor senses the foam, rapidly triggers the defoaming process, effectively suppresses the foam, continuously maintains a good foam-free working environment for the evaporator tank, and improves the product output rate and economic benefits. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a side view appearance structure schematic view of the utility model;

[0015] Figure 2 It is a stirring mechanism structure schematic view of the utility model;

[0016] Figure 3 It is a defoaming mechanism structure schematic view of the utility model;

[0017] Figure 4 It is a limit groove and limit block mutual cooperation structure schematic view of the utility model.

[0018] In the drawing: 1, evaporator tank; 2, feed inlet; 3, stirring mechanism; 301, first motor; 302, rotating shaft; 303, connecting rod; 304, scraper; 305, support rod; 306, limit ring; 4, defoaming mechanism; 401, fixed block; 402, annular pipe; 403, atomizing nozzle; 404, connecting pipe; 405, defoamer tank; 406, support plate; 407, observation plate; 408, limit groove; 409, limit block; 410, cover plate; 411, handle; 412, ultrasonic foam sensor; 413, valve. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0020] Please refer to Figures 1-4 The utility model provides a technical scheme: a defoaming device for steam type scraper evaporimeter, including evaporimeter jar body 1, the outside surface of evaporimeter jar body 1 is fixedly connected with feed inlet 2, the inside surface of evaporimeter jar body 1 is provided with stirring mechanism 3, the inside surface of evaporimeter jar body 1 is provided with defoaming mechanism 4,

[0021] Defoaming mechanism 4 including fixed block 401, annular pipe 402, atomizing nozzle 403, connecting pipe 404, defoaming agent tank 405, support plate 406, observation plate 407, limiting groove 408, limiting block 409, cover plate 410, handle 411, ultrasonic wave foam sensor 412 and valve 413, the inside surface of evaporimeter jar body 1 is fixedly connected with fixed block 401, the inside surface of fixed block 401 is fixedly connected with annular pipe 402, the outside surface of annular pipe 402 is fixedly connected with atomizing nozzle 403, the outside surface of annular pipe 402 is fixedly connected with connecting pipe 404, one end surface of connecting pipe 404 is fixedly connected with defoaming agent tank 405, the lower surface of defoaming agent tank 405 is fixedly connected with support plate 406, one side surface of defoaming agent tank 405 is fixedly connected with observation plate 407, the inside surface of defoaming agent tank 405 is provided with limiting groove 408, the inside surface of limiting groove 408 is slidably connected with limiting block 409, one side surface of limiting block 409 is fixedly connected with cover plate 410, one side surface of cover plate 410 is fixedly connected with handle 411, the inside surface of evaporimeter jar body 1 is fixedly connected with ultrasonic wave foam sensor 412, the outside surface of connecting pipe 404 is fixedly connected with valve 413, through the setting of fixed block 401, annular pipe 402, atomizing nozzle 403, connecting pipe 404, defoaming agent tank 405, support plate 406, observation plate 407, limiting groove 408, limiting block 409, cover plate 410, handle 411, ultrasonic wave foam sensor 412 and valve 413, when the equipment runs when using, ultrasonic wave foam sensor 412 monitors the foam condition in evaporimeter jar body 1 in real time, when the foam reaches the set early warning height, signal transmission opens valve 413 on connecting pipe 404, valve 413 opens to make the passage between defoaming agent tank 405 and annular pipe 402 unobstructed, the defoaming agent in defoaming agent tank 405 is transported to annular pipe 402 through connecting pipe 404, relies on annular pipe 402 and evenly distributes, and then atomizing nozzle 403 sprays the defoaming agent into the foam layer in the jar in mist, the defoaming agent reduces the surface tension of the foam by its own characteristics, destroys the stability of the foam and makes it break and dissipate, the defoaming agent tank 405 is checked through observation plate 407, when the remaining amount is insufficient, can hold handle 411 and move, open cover plate 410 and supplement the defoaming agent, defoaming mechanism 4 is convenient to operate, is convenient for daily maintenance and use, ultrasonic wave foam sensor 412 senses the foam, rapidly triggers the defoaming process, effectively inhibits the foam, continuously maintains the good bubble-free working environment for evaporimeter jar body 1, improves product output rate and economic benefit.

[0022] Further, the fixed blocks 401 are arranged in multiple groups at equal intervals on the inner side surface of the evaporator tank body 1, and the atomizing nozzles 403 are arranged in multiple groups at equal intervals on the outer side surface of the annular pipe 402. Through the arrangement of the fixed blocks 401, in use, the multiple groups of fixed blocks 401 are evenly distributed and stably support the annular pipe 402, so that the annular pipe 402 is more stable in the evaporator tank body 1.

[0023] Further, the support plate 406 is fixedly connected with the evaporator tank body 1, and the bottom of the defoaming agent tank 405 is inclined. Through the arrangement of the defoaming agent tank 405, in use, the inclined bottom is conducive to the full collection of the defoaming agent to the lowest position under the action of its own gravity, so that the residual amount in the tank can be reduced to the minimum when the defoaming agent is delivered, high-efficiency discharging is realized, and the defoaming agent is prevented from deteriorating or failing due to stagnation and accumulation in the tank.

[0024] Further, the inner side dimension of the limiting groove 408 is consistent with the outer side dimension of the limiting block 409, and the limiting block 409 is symmetrically arranged in two groups about the central axis of the cover plate 410. Through the arrangement of the limiting block 409, in use, the two groups of limiting blocks 409 symmetrically arranged about the central axis of the cover plate 410 provide balanced force points and smooth guidance for the operator to open and close the cover plate 410, so that the cover plate 410 is more smooth and stable in sliding.

[0025] Further, the stirring mechanism 3 comprises a first motor 301, a rotating shaft 302, a connecting rod 303, a scraper 304, a support rod 305, and a limiting ring 306. The first motor 301 is fixedly connected to the upper surface of the evaporator tank body 1. One end surface of the first motor 301 is fixedly connected with the rotating shaft 302. The outer side surface of the rotating shaft 302 is fixedly connected with the connecting rod 303. One end surface of the connecting rod 303 is fixedly connected with the scraper 304. The outer side surface of the rotating shaft 302 is fixedly connected with the support rod 305. One end surface of the support rod 305 is fixedly connected with the limiting ring 306. Through the arrangement of the first motor 301, the rotating shaft 302, the connecting rod 303, the scraper 304, the support rod 305, and the limiting ring 306, in use, the first motor 301 is started, the rotating shaft 302 starts to rotate, the outer fixed connecting rod 303 rotates, the scraper 304 is scraped in the inner wall of the evaporator tank body 1, and the support rod 305 and the limiting ring 306 provide additional support force for the rotating shaft 302 to share the force generated by the scraping of the scraper 304 and the resistance of the material.

[0026] Further, the connecting rod 303 is arranged in two groups on the two end surfaces of the scraper 304, and the scraper 304 is arranged in multiple groups. Through the arrangement of the scraper 304, in use, the multiple groups of scrapers 304 work cooperatively, constantly stir the material in the tank with the rotation, and make the material mixing more uniform.

[0027] Further, the limiting ring 306 is provided with two groups, the outside size of the limiting ring 306 is consistent with the inside size of the evaporator tank body 1, through the setting of the limiting ring 306, in use, the outside size of the limiting ring 306 is consistent with the inside size of the evaporator tank body 1, the swing amplitude of the rotating shaft 302 can be limited, the central position is prevented from deviating, and the stirring mechanism 3 is more stable during operation.

[0028] Working principle: start the first motor 301, the rotating shaft 302 starts to rotate, the fixed connecting rod 303 on the outside rotates, drives the scraper 304 to scrape on the inner wall of the evaporator tank body 1, the supporting rod 305 and the limiting ring 306 provide additional support force for the rotating shaft 302, and share the force generated by the scraping of the scraper 304, material resistance and the like, when the equipment operates, the ultrasonic foam sensor 412 monitors the foam condition in the evaporator tank body 1 in real time, when the foam reaches the set early warning height, the signal transmission opens the valve 413 on the connecting pipe 404, the valve 413 is opened to make the passageway between the defoaming agent tank 405 and the annular pipe 402 unobstructed, the defoaming agent in the defoaming agent tank 405 is transported to the annular pipe 402 through the connecting pipe 404, relies on the annular pipe 402 to distribute uniformly, and then the defoaming agent is sprayed into the foam layer in the tank in the form of mist by the atomizing nozzle 403, the defoaming agent reduces the surface tension of the foam by virtue of its own characteristics, destroys the stability of the foam and makes it break and dissipate, the remaining amount of the defoaming agent in the tank can be observed through the observation plate 407, when the remaining amount is insufficient, the handle 411 can be moved to open the cover plate 410 to supplement the defoaming agent, the defoaming mechanism 4 is convenient to operate, is convenient for daily maintenance and use, the ultrasonic foam sensor 412 senses the foam, quickly triggers the defoaming process, effectively inhibits the foam, and continuously maintains a good foam-free working environment for the evaporator tank body 1, improves product output rate and economic benefit, and the model of the first motor 301 is YE2-132S-4.

[0029] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A defoaming device for a steam scraped surface evaporator comprising an evaporator vessel (1), characterised in that: The outer side surface of the evaporator tank body (1) is fixedly connected with a feeding port (2), the inner side surface of the evaporator tank body (1) is provided with a stirring mechanism (3), and the inner side surface of the evaporator tank body (1) is provided with a defoaming mechanism (4); The defoaming mechanism (4) comprises a fixed block (401), an annular pipe (402), an atomizing nozzle (403), a connecting pipe (404), a defoaming agent tank (405), a supporting plate (406), an observation plate (407), a limiting groove (408), a limiting block (409), a cover plate (410), a handle (411), an ultrasonic foam sensor (412) and a valve (413), the inner side surface of the evaporator tank body (1) is fixedly connected with the fixed block (401), the inner side surface of the fixed block (401) is fixedly connected with the annular pipe (402), the outer side surface of the annular pipe (402) is fixedly connected with the atomizing nozzle (403), the outer side surface of the annular pipe (402) is fixedly connected with the connecting pipe (404), one end surface of the connecting pipe (404) is fixedly connected with the defoaming agent tank (405), the lower surface of the defoaming agent tank (405) is fixedly connected with the supporting plate (406), one side surface of the defoaming agent tank (405) is fixedly connected with the observation plate (407), the inner side surface of the defoaming agent tank (405) is provided with the limiting groove (408), the inner side surface of the limiting groove (408) is slidably connected with the limiting block (409), one side surface of the limiting block (409) is fixedly connected with the cover plate (410), one side surface of the cover plate (410) is fixedly connected with the handle (411), the inner side surface of the evaporator tank body (1) is fixedly connected with the ultrasonic foam sensor (412), and the outer side surface of the connecting pipe (404) is fixedly connected with the valve (413).

2. A defoaming device for a steam-type scraped surface evaporator according to claim 1, characterized in that: The fixed block (401) is arranged at equal intervals on the inner side surface of the evaporator tank body (1), and the atomizing nozzle (403) is arranged at equal intervals on the outer side surface of the annular pipe (402).

3. A defoaming device for a steam-type scraped surface evaporator according to claim 1, characterized in that: The supporting plate (406) is fixedly connected with the evaporator tank body (1), and the bottom of the defoaming agent tank (405) is inclined.

4. A defoaming device for a steam-type scraped surface evaporator according to claim 1, characterized in that: The inner side dimension of the limiting groove (408) is consistent with the outer side dimension of the limiting block (409), and the limiting block (409) is symmetrically provided with two groups of the cover plate (410).

5. A defoaming device for a steam-type scraper evaporator according to claim 1, characterized in that: Said stirring mechanism (3) includes first motor (301), rotating shaft (302), connecting rod (303), scraper (304), support rod (305) and limit ring (306), the upper surface of the evaporator tank (1) is fixedly connected with first motor (301), one end surface of first motor (301) is fixedly connected with rotating shaft (302), the outer surface of rotating shaft (302) is fixedly connected with connecting rod (303), one end surface of connecting rod (303) is fixedly connected with scraper (304), the outer surface of rotating shaft (302) is fixedly connected with support rod (305), one end surface of support rod (305) is fixedly connected with limit ring (306).

6. A defoaming device for a steam-type scraped surface evaporator according to claim 5, characterized in that: Two groups of connecting rods (303) are arranged on both end surfaces of the scraper (304), and the scraper (304) is provided with multiple groups.

7. A defoaming device for a steam-type scraper evaporator according to claim 5, characterized in that: The limit ring (306) is provided with two groups, and the outer size of the limit ring (306) is consistent with the inner size of the evaporator tank (1).

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