An external plate pressure defoaming device

Abstract

The present invention provides an external plate pressure defoaming device, including an inlet cabin, a heating cabin, a defoaming cabin and a heating component, wherein the inlet cabin is connected to the heating cabin, the heating cabin is connected to the defoaming cabin, the heating component is installed on the heating cabin, the heating component includes a heating cycle integrated machine and a plurality of heating plates, the two ends of the heating cycle integrated machine are respectively connected to a water supply pipe and a water return pipe, the plurality of heating plates are parallel to each other and arranged in layers, and the end faces of the heating plates are provided with through holes, the two ends of the through holes are respectively connected to a water supply pipe and a water return pipe, and the heating cycle integrated machine is also connected to a filling pipe. The present invention uses an inlet cabin, a heating cabin, a defoaming cabin and a heating component, and in the process of treating the foam in the drainage well, the heating component can preheat the foam, so that a part of the foam is eliminated before entering the defoaming cabin, and then becomes water and flows back to the drainage well, which is suitable for the situation where the amount of foam is too large.

Description

Technical Field

[0001] The invention belongs to the technical field of defoaming equipment, and in particular relates to an external plate pressure type defoaming device. Background Art

[0002] Nuclear power and thermal power plants usually use direct cooling water supply systems. In order to reduce the head of the circulating water pump to achieve energy saving and consumption reduction, drainage siphon wells are normally set up. An overflow weir is set up in the siphon well, and the water level at the top of the overflow weir needs to be maintained at a certain height to ensure the siphon effect; but while ensuring the siphon effect, the overflow weir causes a certain water drop between the upstream and downstream. After the upstream water falls, it collides violently with the downstream water, mixing in a large amount of air, thereby generating a large amount of foam. This phenomenon is more obvious when the plant site elevation is high.

[0003] In addition, to prevent marine organisms from attaching to the cooling water system pipes, power plant circulating cooling water systems usually add sodium hypochlorite and other chemicals for treatment. Sodium hypochlorite and other chemicals, microorganisms or proteins will increase the viscosity and surface tension of the water, making the foam more stable and difficult to break, and a large amount of foam will accumulate. As the accumulated foam increases, the foam will overflow from the siphon well or the top of the channel inspection hole, causing environmental pollution and even affecting the traffic and maintenance safety of the site.

[0004] Foam treatment in circulating water drainage has become a technical pain point and difficulty in the industry. Currently, there are two main methods: chemical and physical. The chemical treatment method mainly involves adding defoaming agents, which can effectively reduce the surface tension of foam and are an effective way to eliminate foam. However, they have high operating costs and will cause secondary pollution to the marine environment. The physical method mainly includes adjusting the siphon well structure and adding water spraying equipment. Adjusting the siphon well structure is suitable for implementation in the initial stage of project planning and construction, and the project volume is large; adding water spraying equipment can be used after the project is completed, but the system is more complicated; the defoaming effect of the above method is easily affected by changes in tide levels, and the defoaming effect cannot be guaranteed when the amount of foam is large. Summary of the invention

[0005] In view of the above problems, the present invention proposes an external plate pressing defoaming device.

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

[0007] An external plate pressure defoaming device comprises an inlet cabin, a heating cabin, a defoaming cabin and a heating component, wherein the inlet cabin is connected to the heating cabin, the heating cabin is connected to the defoaming cabin, and the heating component is installed on the heating cabin;

[0008] The heating assembly includes a heating circulation integrated machine and a plurality of heating plates;

[0009] The two ends of the heating circulation integrated machine are respectively connected to a water supply pipe and a water return pipe;

[0010] The plurality of heating plates are parallel to each other and arranged in layers, and the end faces of the heating plates are provided with through holes, and the two ends of the through holes are respectively connected to the water supply pipe and the water return pipe;

[0011] The heating circulation integrated machine is also connected with a filling pipe.

[0012] Preferably, a first observation window is provided on one side of the inlet cabin;

[0013] The heating chamber is also provided with an inspection window, which is located on one side of the heating component.

[0014] Preferably, a gate assembly is installed on the defoaming chamber, and the gate assembly is located at the connection between the heating chamber and the defoaming chamber.

[0015] Preferably, the gate assembly comprises a first motor, a gate, a first pull rope, a limit plate and a fixing rubber strip;

[0016] The inner walls of both sides of the defoaming chamber are provided with limiting grooves;

[0017] The limiting plate is perpendicular to the inner walls on both sides of the defoaming chamber and is installed in the limiting groove;

[0018] The fixing rubber strip is fitted in the limiting groove and abuts against the limiting plate;

[0019] A slide groove is formed between the limit plate and the inner wall of the defoaming chamber in a parallel direction;

[0020] The gate is slidably connected to the slideway and is located in the defoaming chamber;

[0021] One end of the first pull rope is connected to the gate, and the other end is connected to the first motor, and is used to pull the gate up and down through the first motor;

[0022] The first motor is installed on the outer wall of the heating chamber.

[0023] Preferably, the limiting plate is a rectangular plate structure, with a rectangular opening at one end;

[0024] The gate is in a rectangular plate structure, and the size of the rectangular plate structure is larger than the size of the rectangular opening of the limiting plate.

[0025] Preferably, a second observation window is installed on one side of the defoaming chamber.

[0026] Preferably, a bubble compression component is also installed on the defoaming cabin, and the bubble compression component is located on one side of the gate component.

[0027] Preferably, the bubble pressing assembly includes a plurality of second motors, a plurality of second pull ropes and a pressing plate;

[0028] A plurality of the second motors are installed on the outer wall of the defoaming chamber;

[0029] One end of the plurality of second pull ropes is connected to the pressing plate, and the other end is connected to the second motor;

[0030] The pressing plate is located in the defoaming cabin.

[0031] Preferably, the defoaming chamber is connected with an exhaust pipe.

[0032] Preferably, a drainage trough is installed at the bottom of the defoaming chamber, and the drainage trough is connected to a drainage pipe.

[0033] Preferably, the height difference between the bottom of the heating chamber and the bottom of the defoaming chamber is not less than m.

[0034] Preferably, the external plate pressure defoaming device further includes a power supply component and a control panel;

[0035] The power supply assembly includes a battery and a distribution box, which are electrically connected to the first motor, the second motor and the heating cycle integrated machine;

[0036] The control panel is electrically connected to the power supply assembly.

[0037] Beneficial effects of the present invention:

[0038] 1. The present invention uses an inlet cabin, a heating cabin, a defoaming cabin and a heating component. In the process of treating the foam in the drainage well, the heating component can preheat the foam so that a part of the foam is eliminated before entering the defoaming cabin, and then turns into water and flows back to the drainage well. It is suitable for the situation where the amount of foam is too large;

[0039] 2. The present invention uses a gate assembly and a foam pressing assembly. When performing the foam pressing treatment, the gate assembly can separate the foam in the heating chamber and the defoaming chamber, and then the foam pressing assembly crushes the foam. This process does not require the use of chemical agents such as defoaming agents, which is beneficial to environmental protection. At the same time, the structure is simple, which is beneficial to reducing costs and is easy to operate.

[0040] 3. The device of the present invention can effectively deal with the foam overflow problem of the siphon well of the circulating water drainage of the power station or the inspection well of the drainage ditch. It is a physical defoaming device with "the defoaming effect is not affected by the tide level", "the defoaming does not cause secondary pollution to the marine environment", "can be installed during the planned construction period or after production", and "does not affect the operation of various systems in the power plant". It has the characteristics of small footprint, convenient installation and maintenance, flexible operation and operation, low project investment, and environmental protection. At the same time, in the device, welding or bolt connection is used as little as possible between the components, and they are mostly fixed by slots or rubber strips, which greatly reduces the installation and maintenance workload.

[0041] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures pointed out in the description, claims and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0043] Figure 1 A schematic diagram showing the internal structure of an external plate pressure defoaming device of the present invention is shown;

[0044] Figure 2 Shows Figure 1 Dorsal structural view of the ;

[0045] Figure 3 A schematic diagram of the structure of the heating assembly of the present invention is shown;

[0046] Figure 4 A schematic structural diagram of a limit plate of the present invention is shown;

[0047] Figure 5 The schematic diagram of the structure of the gate of the present invention is shown;

[0048] Figure 6 The schematic diagram of the installation of the gate and the limit plate of the present invention on the defoaming cabin is shown;

[0049] Figure 7 The diagram shows the connection relationship between the gate, the limit plate and the fixing rubber strip on the defoaming chamber.

[0050] In the figure: 1. Inlet cabin; 2. Heating cabin; 3. Defoaming cabin; 4. Heating component; 401. Heating circulation integrated machine; 402. Water supply pipe; 403. Heating plate; 404. Filling pipe; 405. Return pipe; 5. First motor; 6. Second motor; 7. First observation window; 8. Exhaust pipe; 9. Gate; 901. First pull rope; 902. Limit plate; 903. Fixing rubber strip; 10. Drain trough; 11. Drain pipe; 12. Second pull rope; 13. Press plate; 14. Second observation window; 15. Limit groove; 16. Power supply component; 17. Control panel; 18. Inspection window. DETAILED DESCRIPTION

[0051] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are 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.

[0052] An external plate pressure defoaming device, such as Figure 1 As shown, it includes an inlet cabin 1, a heating cabin 2, a defoaming cabin 3 and a heating assembly 4. The inlet cabin 1 is connected to the heating cabin 2, the heating cabin 2 is connected to the defoaming cabin 3, and the heating assembly 4 is installed on the heating cabin 2. Among them, the inlet cabin 1 is the inlet position of the foam. During the production process, the foam overflows from the drainage well (not shown in the figure) and flows out from the Figure 1 It can be seen that the inlet cabin 1 is a step-shaped structure with a larger opening facing downwards, in order to keep consistent with the opening size of the well. The angle of the side panels of the step-shaped structure can be selected for inclined or flat installation according to the actual application conditions (foam overflow height, drainage wellhead height, etc.). The side panels of the step-shaped structure are welded or bonded as a whole and fixed to the top of the wellhead with bolts. In order to facilitate observation of the foam accumulation in the well, a first observation window 7 is set on one side of the inlet cabin 1, which is made of glass and fixed to the inlet cabin 1 through a glass frame.

[0053] It should be noted that the height difference between the bottom of the heating chamber 2 and the bottom of the defoaming chamber 3 is not less than 1m to ensure the amount and effect of foam removal. In addition, the bottom plate of the defoaming chamber 3 is installed above ground or underground according to engineering conditions. In addition, the shape of the inlet chamber 1 is not fixed and needs to be changed according to the structure of the drainage well.

[0054] like Figure 4 As shown, the heating assembly 4 includes a heating circulation integrated machine 401 (including a micro-circulating water pump and an electric heating device) and a plurality of heating plates 403, wherein the two ends of the heating circulation integrated machine 401 are respectively connected with a water supply pipe 402 and a water return pipe 405, and the plurality of heating plates 403 are parallel to each other, arranged in layers, and arranged in parallel from top to bottom, and a certain slope is set at the same time, which is an uphill slope from the heating chamber 2 to the defoaming chamber 3, and the liquid after the foam is heated and expanded and ruptured can flow back to the drainage well, and the end face of the heating plate 403 is provided with a through hole, and the two ends of the through hole are respectively connected to the water supply pipe 402 and the water return pipe 405, and specifically, a threaded flexible joint can be used for connection. When the heating circulation integrated machine 401 passes hot water into the heating plate 403, heat can be transferred to the heating plate 403, and the heating plate 403 can use a glass plate to improve the heat transfer efficiency and anti-corrosion performance.

[0055] It should be noted that, combined with Figure 1 and Figure 2It can be seen that the heating chamber 2 is provided with an inspection window 18, and the inspection window 18 is located on one side of the heating component 4, so that the inspection window 18 can be opened regularly to inspect and maintain the heating component 4.

[0056] In addition, combined Figure 1 and Figure 3 It can be seen that the heating cycle integrated machine 401 is installed on the top of the heating cabin 2, the heating plate 403 is installed inside the heating cabin 2, and the heating cycle integrated machine 401 is also connected to a filling pipe 404, which can add water to the heating cycle integrated machine 401, and the filling pipe 404 can be used to see whether the water in the heating cycle integrated machine 401 is full and observe its liquid level. The water supply pipe 402 and the water return pipe 405 need to pass through the bulkhead of the heating cabin 2, so the water supply pipe 402 and the water return pipe 405 pass through the bulkhead of the heating cabin 2. The soft rubber seal is used to seal the water supply pipe 402 and the water return pipe 405 when passing through the bulkhead of the heating cabin 2.

[0057] In addition, Figure 1 In the defoaming chamber 3, a gate assembly is installed, and the gate assembly is located at the connection between the heating chamber 2 and the defoaming chamber 3. Figure 1 , Figure 6 and Figure 7 It can be seen that the gate assembly includes a first motor 5, a gate 9, a first pull rope 901, a limit plate 902 and a fixing rubber strip 903, wherein Figure 7 As shown, the inner walls of both sides of the defoaming chamber 3 are provided with limiting grooves 15, the limiting plates 902 are perpendicular to the inner walls of both sides of the defoaming chamber 3 and are installed in the limiting grooves 15, the fixing rubber strips 903 are fitted in the limiting grooves 15 and abut against the limiting plates 902, and a slide groove is formed between the limiting plates 902 and the inner walls of the defoaming chamber 3 in a parallel direction, and the gate 9 is slidably connected to the slide groove and is located in the defoaming chamber 3, as shown in FIG. Figure 1 As shown, one end of the first pull rope 901 is connected to the gate 9, and the other end is connected to the first motor 5, which is used to pull the gate 9 up and down through the first motor 5. The first motor 5 is installed on the outer wall of the heating chamber 2. Figure 4 As shown, the limiting plate 902 is a rectangular plate structure, with a rectangular opening at one end; Figure 5 and Figure 6 It can be seen that the gate 9 is a rectangular plate structure, and the size of the rectangular plate structure is larger than the size of the rectangular opening of the limiting plate 902 .

[0058] It should be noted that the rectangular opening of the limit plate 902 is located at the connection point between the heating chamber 2 and the defoaming chamber 3. 50-100mm frames must be retained on both sides of the rectangular opening to ensure that the gate 9 does not deviate during the lifting process. The limit plate 902 is installed on the side close to the gate 9 to meet the limit requirements of the gate 9. A fixed rubber strip 903 is vertically installed between the limit plate 902 and the limit groove 15 to prevent the limit plate 902 from shaking. In addition, the gate 9 is the same width as the inside of the heating chamber 2; when the gate 9 is located at the bottom of the defoaming chamber 3, the top of the gate 9 is 100mm higher than the rectangular opening of the limit plate 902 to ensure that the gate 9 does not move away from its placement after it is lifted to the top of the defoaming chamber 3. In addition, from Figure 5 It can be seen that a lifting lug is provided on the top of the gate 9 to fix the first pull rope 901 to meet the lifting needs.

[0059] Furthermore, a second observation window 14 is installed on one side of the defoaming chamber 3 , and the second observation window 14 is made of glass and fixed on the wall of the defoaming chamber 3 through a glass frame, so that the foam state in the defoaming chamber 3 can be easily observed.

[0060] Furthermore, a bubble suppressing assembly is installed on the defoaming chamber 3, and the bubble suppressing assembly is located on one side of the gate assembly. The bubble suppressing assembly includes a plurality of second motors 6, a plurality of second pull ropes 12, and a pressing plate 13. The plurality of second motors 6 are installed on the outer wall of the defoaming chamber 3, one end of the plurality of second pull ropes 12 is connected to the pressing plate 13, and the other end is connected to the second motor 6, and the pressing plate 13 is located in the defoaming chamber 3.

[0061] It should be noted that the pressing plate 13 is a steel structure, and its size matches the length and width of the installation area, and is installed horizontally; in order to keep the pressing plate 13 horizontal during the lifting process and avoid tipping over, the pressing plate 13 must be guaranteed to have a thickness of not less than 10 mm. In addition, a lifting lug is provided on the top of the pressing plate 13 to meet the lifting needs with the second pull rope 12.

[0062] The second motor 6 is installed on the top plate of the defoaming chamber 3 by bolts, and is responsible for the lifting and lowering of the pressure plate 13. Its installation position corresponds to the position of the second pull rope 12, and a round hole is opened on the top of the defoaming chamber 3, and a soft rubber is installed around the round hole. Similarly, the first motor 5 and the first pull rope 901 are also installed in the same way.

[0063] Furthermore, the defoaming chamber 3 is connected to an exhaust pipe 8 , and a drainage groove 10 is installed at the bottom of the defoaming chamber 3 , and the drainage groove 10 is connected to a drainage pipe 11 .

[0064] It should be noted that the exhaust pipe 8 is installed on the top of the defoaming chamber 3, with a length of 150 mm and a diameter within 50 mm. It is welded to the defoaming chamber 3, and an automatic air intake and exhaust valve is installed at the outlet of the exhaust pipe 8.

[0065] The cross-sectional size of the drain trough 10 should not be greater than 150×150mm, and it is welded to the bottom plate of the defoaming chamber 3. A drain pipe 11 is arranged at the end of the drain trough 10, with a length of 150mm and a diameter of 50mm. The drain pipe 11 is welded to the wall of the drain trough 10, and the bottom of the pipe is flush with the trough body, and an electric drain valve is installed at the outlet of the drain pipe 11.

[0066] Furthermore, the external plate pressure defoaming device also includes a power supply assembly 16 and a control panel 17. The power supply assembly 16 includes a battery and a distribution box, and is electrically connected to the first motor 5, the second motor 6 and the heating circulation integrated machine 401. The control panel 17 is electrically connected to the power supply assembly 16.

[0067] It should be noted that the power supply assembly 16 can supply power to the defoaming device, which is not limited to the first motor 5, the second motor 6 and the heating circulation integrated machine 401, and the control panel 17 can input parameters to control the operating status of the first motor 5, the second motor 6 and the heating circulation integrated machine 401 and other equipment.

[0068] The installation process of the external plate pressure defoaming device of the present invention is described below:

[0069] 1. When using the device of the present invention for defoaming treatment, firstly, a corresponding inlet cabin 1 should be made according to the size of the drainage wellhead and the foam accumulation situation to effectively collect the foam and prevent overflow;

[0070] 2. Install the heating component 4 in place, and set the heating plate 403 to an uphill inclined structure from the heating chamber 2 to the defoaming chamber 3. When the foam contacts the high-temperature glass plate, the surface tension of the foam is reduced and the thermal expansion effect is eliminated, so that the water body can flow back to the drainage well after the foam is broken. Considering the contact area and the resistance of foam passage, the interlayer spacing of the heating plate 403 is recommended to be no more than 200mm. The specific spacing and number of layers can be determined according to the actual amount of foam and the bubble height; the plate width is recommended to be no less than 500mm; in addition, the heating circulation integrated machine 401 is equipped with a micro-circulating water pump and an electric heating rod to always keep the water temperature in the heating component not lower than 60°C (the specific temperature can be adjusted according to the defoaming effect); in addition, the heating component 4 is a closed circulating water system, which uses softened water inside; due to its small size and basically no loss, it is manually inspected and replenished regularly;

[0071] 3. Fix the gate 9, the limiting plate 902 and the fixing rubber strip 903 in the limiting groove 15, and then connect the gate 9 to the first motor 5 through the first pull rope 901; at the same time, install the pressing plate 13 in the defoaming chamber 3, and connect it to the second motor 6 through the second pull rope 12, and then install the top automatic air intake and exhaust valve and the bottom electric drain valve.

[0072] The operation process of the external plate pressure defoaming device of the present invention is described below:

[0073] 1. The foam in the drainage well is transported to the inlet tank 1 by overflow or suction;

[0074] 2. When the foam enters the inlet cabin 1, the gate 9 is placed at the bottom of the defoaming cabin 3 and the pressure plate 13 is placed at the top of the defoaming cabin 3. Then the foam enters the heating cabin 2. At this time, the heating component 4 works, and the heating circulation integrated machine 401 heats the water inside it. Then the water enters the heating plate 403 through the water supply pipe 402 to heat the heating plate 403. Then the water returns to the heating circulation integrated machine 401 through the return pipe 405. After the heating plate 403 is heated, part of the foam can be broken. Moreover, since the heating plate 403 is provided with a slope, the water after the foam is broken will flow back to the drainage well, and the unbroken foam will enter the defoaming cabin 3 through the rectangular opening of the limit plate 902;

[0075] 3. After the defoaming chamber 3 is filled with foam, the first motor 5 pulls the gate 9 to rise to the top of the defoaming chamber 3, blocks the rectangular opening of the limit plate 902, and isolates the foam in the heating chamber 2 and the defoaming chamber 3. Then, the second motor 6 is started to lower the pressing plate 13 to the bottom of the defoaming chamber 3 until the pressing plate 13 is in contact with the bottom plate of the defoaming chamber 3. After the foam pressing is completed, the pressing plate 13 is lifted to the top of the defoaming chamber 3, and then the gate 9 is lowered to the bottom of the defoaming chamber 3;

[0076] The above process is repeated, and the time interval is determined according to the amount of foam accumulation and the processing capacity of the device. The first motor 5 and the second motor 6 can be manually operated on site or automatically controlled by a control box.

[0077] 4. When the foam bursts, gas and water will be generated. The gas rises to the top of the defoaming chamber 3 and is discharged through the automatic air intake and exhaust valve in the exhaust pipe 8. At the same time, the automatic air intake and exhaust valve can prevent the foam from overflowing; the water flows into the drain trough 10 and is regularly discharged through the electric drain valve in the drain pipe 11. Due to the small drainage volume, the electric drain valve is automatically opened and closed for a short time.

[0078] It should be noted that one side of the external plate pressure defoaming device of the present invention can be equipped with an on-site photovoltaic panel and a breeze generator. The device gives priority to the use of renewable energy power generation, and the insufficient part is supplemented by an external power supply.

[0079] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein; and these modifications or substitutions do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An external plate pressure defoaming device, characterized in that: The invention comprises an inlet chamber (1), a heating chamber (2), a defoaming chamber (3) and a heating component (4), wherein the inlet chamber (1) is connected to the heating chamber (2), the heating chamber (2) is connected to the defoaming chamber (3), and the heating component (4) is installed on the heating chamber (2); The inlet cabin (1) is a step-type structure, and the opening of the inlet cabin (1) of the step-type structure is arranged downward; The heating component (4) comprises a heating circulation integrated machine (401) and a plurality of heating plates (403); The two ends of the heating circulation integrated machine (401) are respectively connected to a water supply pipe (402) and a water return pipe (405); The plurality of heating plates (403) are parallel to each other and arranged in layers, and the end faces of the heating plates (403) are provided with through holes, and the two ends of the through holes are respectively connected to the water supply pipe (402) and the water return pipe (405); The heating circulation integrated machine (401) is also connected to a filling pipe (404); A gate assembly is installed on the defoaming chamber (3), and the gate assembly is located at the connection between the heating chamber (2) and the defoaming chamber (3); The gate assembly comprises a first motor (5), a gate (9), a first pull rope (901), a limit plate (902) and a fixing rubber strip (903); Limiting grooves (15) are provided on the inner walls of both sides of the defoaming chamber (3); The limiting plate (902) is perpendicular to the inner walls on both sides of the defoaming chamber (3), and is installed in the limiting groove (15); The fixing rubber strip (903) is fitted in the limiting groove (15) and abuts against the limiting plate (902); A slide groove is formed between the limiting plate (902) and the inner wall of the defoaming chamber (3) in a parallel direction; The gate (9) is slidably connected to the slide groove and is located in the defoaming chamber (3); One end of the first pull rope (901) is connected to the gate (9), and the other end is connected to the first motor (5), and is used to pull the gate (9) up and down through the first motor (5); The first motor (5) is mounted on the outer wall of the heating chamber (2); The defoaming chamber (3) is also equipped with a bubble compression component, which is located on one side of the gate component; The bubble pressing assembly comprises a plurality of second motors (6), a plurality of second pull ropes (12) and a pressing plate (13); A plurality of the second motors (6) are installed on the outer wall of the defoaming chamber (3); One end of a plurality of the second pull ropes (12) is connected to the pressure plate (13), and the other end is connected to the second motor (6); The pressing plate (13) is located in the defoaming chamber (3).

2. The external plate pressure defoaming device according to claim 1, characterized in that: A first observation window (7) is provided on one side of the inlet cabin (1); The heating chamber (2) is also provided with an inspection window (18), and the inspection window (18) is located on one side of the heating component (4).

3. The external plate pressure defoaming device according to claim 1, characterized in that: The limiting plate (902) is a rectangular plate structure, with a rectangular opening provided at one end; The gate (9) is in the form of a rectangular plate structure, and the size of the rectangular plate structure is larger than the size of the rectangular opening of the limiting plate (902).

4. The external plate pressure defoaming device according to claim 1, characterized in that: A second observation window (14) is installed on one side of the defoaming chamber (3).

5. The external plate pressure defoaming device according to claim 1, characterized in that: The defoaming chamber (3) is connected to an exhaust pipe (8).

6. An external plate pressure defoaming device according to any one of claims 1 to 5, characterized in that: A drainage trough (10) is installed at the bottom of the defoaming chamber (3), and the drainage trough (10) is connected to a drainage pipe (11).

7. The external plate pressure defoaming device according to claim 1, characterized in that: The height difference between the bottom of the heating chamber (2) and the bottom of the defoaming chamber (3) is not less than 1 m.

8. The external plate pressure defoaming device according to claim 1, characterized in that: The external plate pressure defoaming device further includes a power supply component (16) and a control panel (17); The power supply assembly (16) comprises a storage battery and a distribution box, and is electrically connected to the first motor (5), the second motor (6) and the heating circulation integrated machine (401); The control panel (17) is electrically connected to the power supply component (16).

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