A high-efficiency static defoamer for scraper evaporator

Abstract

The present invention discloses a high-efficiency static demister for a scraper evaporator, specifically in the field of evaporators, comprising an upper steam outlet, an upper outlet pipe and a body, an upper connector body fixedly mounted at the bottom of the upper outlet pipe, a lower connector body fixedly mounted at the bottom of the body, a lower steam outlet fixedly connected to the bottom of the lower connector body, a lower outlet pipe provided at the bottom of the lower steam outlet, a fixed block fixedly mounted on the inner wall of the inner cavity of the body, and a feed pipe fixedly connected to the side of the body. The present invention arranges a liquid-foam conversion device so that the demister is installed near the steam outlet, so a large amount of liquid foam will be generated on the surface of the demister, and when the liquid foam sticks to the demister, the liquid-foam conversion device will automatically remove the liquid foam on the demister while the demister is working, which not only avoids the problem of demister blockage, but also solves the problem of evaporator operation, thereby ensuring the normal operation of the demister.

Description

Technical Field

[0001] The present invention relates to the technical field of evaporators, and more specifically, to a high-efficiency static defoamer for a scraper evaporator. Background Art

[0002] A demister refers to a device that is installed near the steam outlet because a large amount of liquid is entrained in the secondary steam during evaporation operation. Although separation is carried out in the separation chamber, in order to prevent the loss of useful products or contamination of the condensed liquid, it is still necessary to find a way to reduce the entrained liquid foam.

[0003] The current scraper evaporator is a new type of evaporator with strong adaptability. For example, it is suitable for materials with high viscosity, heat sensitivity, easy crystallization and scaling. It is mainly composed of a heating jacket and a scraper. Heating steam passes through the jacket. The scraper is installed on a rotatable shaft. A very small gap is maintained between the scraper and the inner wall of the heating jacket, usually 0.5-1.5 mm. After preheating, the liquid is added from the upper part of the evaporator along the tangential direction. Under the action of gravity and the rotating scraper, it is distributed on the inner wall to form a downward rotating film, and is continuously evaporated and concentrated during the descending process. The completed liquid is discharged from the bottom and the secondary steam escapes from the top. Since the demister is installed near the steam outlet, a large amount of liquid foam will be generated on the surface of the demister, and these liquid foams will stick to the demister, thereby affecting the demister and the scraper evaporator.

[0004] In addition, generally after the evaporator is finished working, the demister must be dismantled and cleaned before it can be used again. Such dismantling and cleaning will waste a lot of time and will also cause certain damage to the demister.

[0005] Therefore, there is an urgent need to provide an efficient static demister for a scraper evaporator that is easy to demister, damage-resistant and easy to clean. Summary of the invention

[0006] In order to overcome the above-mentioned defects of the prior art, an embodiment of the present invention provides a high-efficiency static demister for a scraper evaporator, which is configured to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a high-efficiency static demister for a scraper evaporator, comprising an upper steam outlet, an upper outlet pipe and a body, an upper connector body is fixedly installed at the bottom of the upper outlet pipe, a lower connector body is fixedly installed at the bottom of the body, a lower steam outlet is fixedly connected to the bottom of the lower connector body, a lower outlet pipe is provided at the bottom of the lower steam outlet, a fixing block is fixedly installed on the inner wall of the inner cavity of the body, a feed pipe is fixedly connected to the side of the body, a guide plate is fixedly installed at the bottom of the inner cavity of the body, a conversion device is fixedly installed on the top of both sides of the body, a spray device is fixedly installed on the top of the conversion device, a spray pipe is fixedly connected to the side of the spray device, a defoaming device is fixedly installed on the top of the inner wall of the body, a defoamer is fixedly installed on the top of the defoamer, and a wire mesh is fixedly installed inside the defoamer.

[0008] In a preferred embodiment, a extraction box is fixedly installed on the top of the inner cavity of the defoaming device, a hydraulic rod is fixedly installed on the side of the extraction box, a foam outlet plate is fixedly installed on the top of the hydraulic rod, a foam outlet groove is opened on the side of the defoaming device, an extraction pipe is fixedly connected to the other side of the extraction box, an extraction device is fixedly installed on the other side of the extraction pipe, and a delivery pipe is fixedly connected to the other side of the extraction device.

[0009] In a preferred embodiment, a water baffle is fixedly installed inside the spray pipe, and a spray hole is opened on the surface of the water baffle.

[0010] In a preferred embodiment, a foaming pipe is fixedly installed at the bottom of the inner cavity of the conversion device, the top of the foaming pipe is fixedly connected to a condensing pipe, the top of the condensing pipe is fixedly connected to a collecting plate, and the top of the collecting plate is fixedly connected to a conduction pipe.

[0011] In a preferred embodiment, a water tank is fixedly installed at the bottom of the inner cavity of the spray device, a water column is fixedly installed at the top of the water tank, and a spray pipe is fixedly installed at the top of the side of the water column.

[0012] In a preferred embodiment, the delivery pipe is connected to the foaming pipe through a conversion device.

[0013] In a preferred embodiment, there are a plurality of spray holes, and the diameter of the spray holes is one centimeter to two centimeters.

[0014] In a preferred embodiment, there are two defoaming devices, which are respectively installed on both sides of the bottom of the defoamer.

[0015] Technical effects and advantages of the present invention:

[0016] 1. The present invention provides a liquid-foam conversion device so that the foamer is installed near the steam outlet. Therefore, a large amount of liquid foam will be generated on the surface of the demister. When the liquid foam sticks to the demister, the liquid-foam conversion device will automatically remove the liquid foam on the demister while the demister is working, thereby avoiding the problem of demister blockage and solving the problem of evaporator operation, thereby ensuring the normal operation of the demister;

[0017] 2. The invention provides an anti-disassembly device, so that after the evaporator finishes working, the demister needs to be dismantled and cleaned so that it can be used again. At this time, the anti-disassembly device will comprehensively clean the demister after the evaporator finishes working, which not only avoids the problem of wasting time, but also solves the problem of damage to the demister, thereby ensuring the safe and normal use of the demister. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0019] Figure 2 For the present invention Figure 1 Schematic diagram of the structure at point A.

[0020] Figure 3 It is a schematic diagram of the inner cavity structure of the defoaming device of the present invention.

[0021] Figure 4 It is a schematic diagram of the side structure of the spray pipe of the present invention.

[0022] Figure 5 It is a schematic diagram of the inner cavity structure of the conversion device of the present invention.

[0023] Figure 6 It is a schematic diagram of the inner cavity structure of the spraying device of the present invention.

[0024] The accompanying drawings are marked as follows: 1. upper steam outlet; 2. upper outlet pipe; 3. upper connector body; 4. body; 5. lower connector body; 6. lower steam outlet; 7. lower outlet pipe; 8. fixing block; 9. feed pipe; 10. guide plate; 11. conversion device; 12. spraying device; 13. spraying pipe; 14. defoaming device; 15. defoamer; 16. wire mesh; 141. extraction box; 142. hydraulic rod; 143. foam outlet plate; 144. foam outlet groove; 145. extraction pipe; 146. extraction device; 147. conveying pipe; 131. water baffle; 132. spray hole; 111. defoaming pipe; 112. condenser; 113. collecting plate; 114. conduction pipe; 121. water tank; 122. water column; 123. spraying pipe. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] As attached Figure 1-6 The high-efficiency static defoamer of a scraper evaporator shown in the figure comprises an upper steam outlet 1, an upper outlet pipe 2 and a body 4, an upper connector body 3 is fixedly installed at the bottom of the upper outlet pipe 2, a lower connector body 5 is fixedly installed at the bottom of the body 4, a lower steam outlet 6 is fixedly connected to the bottom of the lower connector body 5, a lower outlet pipe 7 is provided at the bottom of the lower steam outlet 6, a fixing block 8 is fixedly installed on the inner wall of the inner cavity of the body 4, a feed pipe 9 is fixedly connected to the side of the body 4, a guide plate 10 is fixedly installed at the bottom of the inner cavity of the body 4, and the tops of the two sides of the body 4 are fixed. A conversion device 11 is installed, a spraying device 12 is fixedly installed on the top of the conversion device 11, a spraying pipe 13 is fixedly connected to the side of the spraying device 12, a defoaming device 14 is fixedly installed on the top of the inner wall of the body 4, a defoamer 15 is fixedly installed on the top of the defoaming device 14, a wire mesh 16 is fixedly installed inside the defoamer 15, a extraction box 141 is fixedly installed on the top of the inner cavity of the defoaming device 14, a hydraulic rod 142 is fixedly installed on the side of the extraction box 141, a foaming plate 143 is fixedly installed on the top of the hydraulic rod 142, and the defoaming device 141 is fixedly installed on the top of the inner cavity of the defoaming device 14. A foam outlet groove 144 is provided on the side of the device 14, a suction pipe 145 is fixedly connected to the other side of the extraction box 141, a suction device 146 is fixedly installed on the other side of the extraction pipe 145, and a delivery pipe 147 is fixedly connected to the other side of the extraction device 146. A water baffle 131 is fixedly installed inside the spray pipe 13, and a spray hole 132 is provided on the surface of the water baffle 131. A foaming pipe 111 is fixedly installed at the bottom of the inner cavity of the conversion device 11, and a condensing pipe 112 is fixedly connected to the top of the foaming pipe 111. The top of the condensing pipe 112 is fixedly connected to the top of the condensing pipe 112. It is connected to a collecting plate 113, the top of which is fixedly connected to a conducting pipe 114, a water tank 121 is fixedly installed at the bottom of the inner cavity of the spraying device 12, a water column 122 is fixedly installed on the top of the water tank 121, a spraying pipe 123 is fixedly installed on the top of the side of the water column 122, a delivery pipe 147 is connected to the foaming pipe 111 through a conversion device 11, a plurality of spraying holes 132 are opened, and the diameter of the spraying holes 132 is one to two centimeters, and there are two defoaming devices 14, which are respectively installed on both sides of the bottom of the defoamer 15.

[0027] As attached Figure 3The defoaming device 14 shown has an extraction box 141 fixedly installed on the top of the inner cavity, a hydraulic rod 142 fixedly installed on the side of the extraction box 141, a foam outlet plate 143 fixedly installed on the top of the hydraulic rod 142, a foam outlet groove 144 is provided on the side of the defoaming device 14, an extraction pipe 145 is fixedly connected to the other side of the extraction box 141, an extraction device 146 is fixedly installed on the other side of the extraction pipe 145, and a delivery pipe 147 is fixedly connected to the other side of the extraction device 146.

[0028] The specific implementation method is as follows: by setting the defoamer 14, when the defoamer 15 is working, the hydraulic rod 142 is controlled to start, thereby driving the foam outlet plate 143 to extend, and the foam outlet plate 143 is extended from the foam outlet groove 144, and then the liquid foam is absorbed on the bottom surface of the defoamer 15;

[0029] As attached Figure 4 A water baffle 131 is fixedly installed inside the spray pipe 13 shown, and a spray hole 132 is opened on the surface of the water baffle 131 .

[0030] The specific implementation method is as follows: by setting a spray pipe 13, when the evaporator finishes working, the water flowing in is dispersed and sprayed out by using the spray hole 132;

[0031] As attached Figure 5 A foaming pipe 111 is fixedly installed at the bottom of the inner cavity of the conversion device 11 shown. The top of the foaming pipe 111 is fixedly connected to a condensing pipe 112. The top of the condensing pipe 112 is fixedly connected to a collecting plate 113. The top of the collecting plate 113 is fixedly connected to a conducting pipe 114.

[0032] The specific implementation method is as follows: by setting the conversion device 11, when the liquid foam flows from the delivery pipe 147 into the foaming pipe 111, the foaming pipe 111 disperses the liquid foam, and then transmits it to the condensing pipe 112 for conversion, and after the conversion, it is conducted to the collecting plate 113 and then flows out from the conducting pipe 114;

[0033] As attached Figure 6 A water tank 121 is fixedly installed at the bottom of the inner cavity of the spraying device 12 shown, a water column 122 is fixedly installed at the top of the water tank 121, and a spraying pipe 123 is fixedly installed at the top of the side of the water column 122.

[0034] The specific implementation method is as follows: by setting up a spraying device 12, when the conducting pipe 114 brings water into the water tank 121, the water column 122 is used to draw the water into the spraying pipe 123 for spraying;

[0035] Working principle of the present invention:

[0036] Preparation phase: First place the equipment at the designated location, and then install each component.

[0037] Working stage: First, when the demister 15 is working, the hydraulic rod 142 is controlled to start, thereby driving the foam plate 143 to extend, and the foam plate 143 is extended from the foam outlet groove 144, and then the liquid foam is absorbed on the bottom surface of the demister 15. After the liquid foam is absorbed, it is stored in the extraction box 141. When the evaporator is finished working, the extraction device 146 is controlled to start, so that the liquid foam is extracted into the delivery pipe 147 through the extraction pipe 145, and the liquid foam is discharged from the delivery pipe 147. When the liquid 47 flows into the foaming pipe 111, the foaming pipe 111 disperses the liquid foam, and then transmits it to the condensing pipe 112 for conversion. After the conversion, it is transmitted to the collecting plate 113 and then flows out from the conducting pipe 114. When the conducting pipe 114 brings the water into the water tank 121, the water is pumped into the spraying pipe 123 by the water column 122, and then the flowing water is dispersed and sprayed by the spraying hole 132, so as to spray and clean the demister 15 comprehensively.

[0038] Ending stage: After cleaning, turn off the main power supply and then conduct regular inspections.

[0039] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0040] Secondly: In the drawings of the embodiments disclosed in the present invention, only the structures related to the embodiments disclosed in the present invention are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present invention can be combined with each other;

[0041] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A high-efficiency static demister for a scraped-plane evaporator, comprising an upper steam outlet (1), an upper outlet pipe (2) and a body (4), characterized in that: An upper connector body (3) is fixedly mounted on the bottom of the upper outlet pipe (2); a lower connector body (5) is fixedly mounted on the bottom of the body (4); a lower steam outlet (6) is fixedly connected to the bottom of the lower connector body (5); a lower outlet pipe (7) is provided at the bottom of the lower steam outlet (6); a fixing block (8) is fixedly mounted on the inner wall of the inner cavity of the body (4); a feed pipe (9) is fixedly connected to the side of the body (4); a guide plate (10) is fixedly mounted on the bottom of the inner cavity of the body (4); conversion devices (11) are fixedly mounted on the top of both sides of the body (4); a spraying device (12) is connected to the top of the conversion device (11); a spraying pipe (13) is fixedly mounted on the side of the spraying device (12); a defoaming device (14) is fixedly mounted on the top of the inner wall of the body (4); a defoamer (15) is fixedly mounted on the top of the defoamer (14); a wire mesh (16) is fixedly mounted inside the defoamer (15); A extraction box (141) is fixedly mounted on the top of the inner cavity of the defoaming device (14), a hydraulic rod (142) is fixedly mounted on the side of the extraction box (141), a foam outlet plate (143) is fixedly mounted on the top of the hydraulic rod (142), a foam outlet groove (144) is provided on the side of the defoaming device (14), a extraction pipe (145) is fixedly connected to the other side of the extraction box (141), a extraction device (146) is fixedly mounted on the other side of the extraction pipe (145), and a delivery pipe (147) is fixedly connected to the other side of the extraction device (146); A water baffle (131) is fixedly installed inside the spray pipe (13), and a spray hole (132) is opened on the surface of the water baffle (131). The spray device (12) is used to spray and clean the demister (15); A foaming pipe (111) is fixedly installed at the bottom of the inner cavity of the conversion device (11), the top of the foaming pipe (111) is fixedly connected to a condensing pipe (112), the top of the condensing pipe (112) is fixedly connected to a current collecting plate (113), and the top of the current collecting plate (113) is fixedly connected to a conducting pipe (114); A water tank (121) is fixedly mounted at the bottom of the inner cavity of the spraying device (12), a water column (122) is fixedly mounted at the top of the water tank (121), and a spraying pipe (123) is fixedly mounted at the top of the side of the water column (122); The delivery pipe (147) is connected to the foaming pipe (111) via the conversion device (11); There are a plurality of spray holes (132), and the diameter of the spray holes (132) is between one centimeter and two centimeters; There are two defoaming devices (14), which are respectively installed on both sides of the bottom of the defoamer (15).

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