Steam pressure protection device of steam type scraper evaporator

Abstract

The utility model discloses a steam pressure protection device of a steam type scraper evaporator, which relates to the technical field of scraper evaporators and comprises an air inlet pipe, the upper end of the air inlet pipe is fixedly connected with a connecting pipe, the upper end of the connecting pipe is fixedly connected with a hollow pipe, and the outer surface of the connecting pipe is fixedly connected with an exhaust pipe in a penetrating manner. The inner cylindrical surface of the air inlet pipe is fixedly connected with a guide cylinder, the upper end of the guide cylinder is movably sleeved with a sealing cover, the upper end of the sealing cover is fixedly connected with a connecting rod, the upper end of the connecting rod movably penetrates into the hollow pipe and is fixedly connected with a first circular plate, and the upper end of the first circular plate is fixedly connected with a spring; the upper end of the spring is fixedly connected with a second circular plate, and the second circular plate is in movable contact with the upper inner wall of the hollow pipe. According to the utility model, the exhaust component is arranged to accelerate the exhaust of steam, so that the steam is prevented from being accumulated near the exhaust port, thereby reducing the local pressure to influence the safety and stability of the equipment.

Description

Technical Field

[0001] This utility model relates to the field of scraped evaporator technology, and in particular to a steam pressure protection device for a steam-type scraped evaporator. Background Technology

[0002] The steam pressure protection device of the steam scraper evaporator ensures that the equipment operates within a safe range by automatically regulating the steam pressure. The device is equipped with a regulating valve, which is triggered when the steam pressure exceeds the set value to release excess steam in time and prevent the equipment from being damaged due to overpressure.

[0003] Existing steam pressure protection devices mostly rely on the natural discharge of steam when discharging excess steam. However, when the steam discharge rate is slow, it may accumulate near the discharge port, increasing local pressure and affecting the safety and stability of the equipment. Further improvements are needed. Therefore, a steam pressure protection device for a steam scraper evaporator is proposed. Utility Model Content

[0004] The main objective of this invention is to provide a steam pressure protection device for a steam scraper evaporator, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A steam pressure protection device for a steam-type scraped evaporator includes an inlet pipe, a connecting pipe fixedly connected to the upper end of the inlet pipe, a hollow pipe fixedly connected to the upper end of the connecting pipe, an exhaust pipe fixedly inserted through the outer surface of the connecting pipe, a guide tube fixedly connected to the inner cylindrical surface of the inlet pipe, a sealing cover movably fitted onto the upper end of the guide tube, a connecting rod fixedly connected to the upper end of the sealing cover, the upper end of the connecting rod movably inserted into the hollow pipe and fixedly connected to a first circular plate, a spring fixedly connected to the upper end of the first circular plate, a second circular plate fixedly connected to the upper end of the spring, the second circular plate movably contacting the upper inner wall of the hollow pipe, and an exhaust component for accelerating steam flow rate installed on the exhaust pipe.

[0007] Preferably, the exhaust component includes a motor, which is mounted on the outer cylindrical surface of the exhaust pipe. The output end of the motor is movably inserted into the exhaust pipe and fixedly connected to a first bevel gear. The first bevel gear is meshed with a second bevel gear. The left end of the second bevel gear is driven to a fan blade via a connecting shaft. The fan blade is fixedly connected to the inner cylindrical surface of the exhaust pipe, and a temperature sensor is installed on the fan blade.

[0008] Preferably, the upper part of the outer surface of the guide tube has a plurality of through grooves arranged in a ring array, and a sealing ring is movably fitted on the upper part of the outer surface of the guide tube, with the through grooves located inside the sealing ring.

[0009] Preferably, the upper end of the sealing ring is equipped with a plurality of fixing rods arranged in a ring array, and the upper ends of the plurality of fixing rods are fixedly connected to the lower end of the sealing cover.

[0010] Preferably, a screw is movably connected to the upper end of the second circular plate, and the upper end of the screw is threaded through the upper side of the hollow tube.

[0011] Preferably, the outer cylindrical surfaces of both the first and second circular plates are slidably connected to the inner cylindrical surface of the hollow tube.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. By setting up an exhaust component, the steam discharge can be accelerated. When the steam is discharged, the temperature sensor detects that the temperature inside the exhaust pipe continues to rise. Then, the output end of the control motor drives the first bevel gear to rotate, the first bevel gear drives the second bevel gear to rotate, and the second bevel gear drives the fan blade to rotate, thereby accelerating the discharge of steam in the connecting pipe and preventing steam from accumulating near the exhaust port, thus reducing local pressure and affecting the safety and stability of the equipment.

[0014] 2. By setting up through slots, fixing rods and sealing rings in combination, the steam discharge flow rate can be increased. During exhaust, the sealing cover moves the sealing ring upward through the fixing rod. Steam is discharged simultaneously above multiple through slots and guide tubes, effectively increasing the discharge area, quickly reducing the internal pressure of the equipment, and avoiding safety problems caused by excessive pressure. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the entire structure presented in this embodiment;

[0016] Figure 2 This is a schematic diagram of the overall cross-sectional structure in this embodiment;

[0017] Figure 3 This is a schematic diagram of the exhaust component in this embodiment;

[0018] Figure 4 This is a cross-sectional view of the guide tube, sealing cap, and sealing ring in this embodiment.

[0019] In the diagram: 1. Intake pipe; 2. Connecting pipe; 3. Hollow pipe; 4. Screw; 5. Exhaust pipe; 6. Exhaust component; 7. Flow guide tube; 8. Sealing cap; 9. Connecting rod; 10. First circular plate; 11. Spring; 12. Second circular plate; 61. Motor; 62. First bevel gear; 63. Second bevel gear; 64. Fan blade; 65. Temperature sensor; 13. Through groove; 14. Fixing rod; 15. Sealing ring. Detailed Implementation

[0020] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0021] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] like Figures 1-4 As shown, a steam pressure protection device for a steam-type scraper evaporator includes an inlet pipe 1, a connecting pipe 2 fixedly connected to the upper end of the inlet pipe 1, a hollow pipe 3 fixedly connected to the upper end of the connecting pipe 2, an exhaust pipe 5 fixedly inserted through the outer surface of the connecting pipe 2, a guide cylinder 7 fixedly connected to the inner cylindrical surface of the inlet pipe 1, a sealing cover 8 movably fitted onto the upper end of the guide cylinder 7, a connecting rod 9 fixedly connected to the upper end of the sealing cover 8, the upper end of the connecting rod 9 movably inserted into the hollow pipe 3 and fixedly connected to a first circular plate 10, a spring 11 fixedly connected to the upper end of the first circular plate 10, and a second circular plate 12 fixedly connected to the upper end of the spring 11. 12 is in contact with the upper inner wall of the hollow tube 3. During use, the air inlet pipe 1 is fixed on the steam scraper evaporator. When the internal pressure of the evaporator is too high, the steam pushes the sealing cover 8 to move upward. The sealing cover 8 compresses the spring 11 through the connecting rod 9 and the first circular plate 10. The steam enters the connecting pipe 2 through the guide tube 7 and then exits through the exhaust pipe 5 to relieve pressure inside the evaporator. When the internal pressure of the evaporator decreases, the spring 11 drives the sealing cover 8 to cover the top of the guide tube 7 through its elasticity. However, when the steam discharge speed is slow, it may accumulate near the discharge port, increasing the local pressure and affecting the safety and stability of the equipment.

[0024] To solve the above problems, an exhaust component 6 is installed on the exhaust pipe 5 to accelerate the steam flow rate.

[0025] Specifically: the exhaust component 6 includes a motor 61, which is mounted on the outer cylindrical surface of the exhaust pipe 5. The output end of the motor 61 is movably inserted into the exhaust pipe 5 and fixedly connected to a first bevel gear 62. The first bevel gear 62 is meshed with a second bevel gear 63. The left end of the second bevel gear 63 is driven to a fan blade 64 via a connecting shaft. The fan blade 64 is fixedly connected to the inner cylindrical surface of the exhaust pipe 5. A temperature sensor 65 is installed on the fan blade 64. When steam is discharged, the temperature sensor 65 detects that the temperature inside the exhaust pipe 5 is continuously rising. Then, it controls the output end of the motor 61 to drive the first bevel gear 62 to rotate. The first bevel gear 62 drives the second bevel gear 63 to rotate. The second bevel gear 63 drives the fan blade 64 to rotate, accelerating the airflow and thus accelerating the discharge of steam from the connecting pipe 2. This prevents steam from accumulating near the discharge port, thereby reducing local pressure and ensuring the safety and stability of the equipment.

[0026] In addition, in order to quickly reduce the internal pressure of the equipment and avoid safety problems caused by excessive pressure, several through slots 13 arranged in a ring array are opened on the upper part of the outer surface of the guide tube 7. Specifically, four through slots 13 are provided. A sealing ring 15 is movably fitted on the upper part of the outer surface of the guide tube 7. The through slots 13 are located inside the sealing ring 15. Several fixed rods 14 arranged in a ring array are installed on the upper end of the sealing ring 15. Specifically, four fixed rods 14 are provided. The upper ends of the fixed rods 14 are fixedly connected to the lower end of the sealing cover 8. When venting, the sealing cover 8 drives the sealing ring 15 to move upward through the fixed rods 14. Steam is discharged simultaneously from the upper part of the multiple through slots 13 and the guide tube 7, effectively increasing the discharge area.

[0027] Based on the above scheme, in order to adjust the pressure of the sealing cover 8, a screw 4 is movably connected to the upper end of the second circular plate 12. The upper end of the screw 4 is threaded through the upper side of the hollow tube 3. The outer cylindrical surfaces of the first circular plate 10 and the second circular plate 12 are slidably connected to the inner cylindrical surface of the hollow tube 3. When it is necessary to increase the pressure at the trigger, the screw 4 is rotated to move the second circular plate 12 downward, compressing the spring 11, thereby increasing the force required to compress the spring 11. When it is necessary to reduce the pressure at the trigger, the screw 4 is rotated in the opposite direction to move the second circular plate 12 upward, so that the spring 11 is reset, thereby reducing the force required to compress the spring 11.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A steam pressure protection device for a steam scraped surface evaporator comprising an inlet pipe (1), characterised in that: The upper end of the air inlet pipe (1) is fixedly connected to a connecting pipe (2), the upper end of the connecting pipe (2) is fixedly connected to a hollow pipe (3), the outer surface of the connecting pipe (2) is fixedly connected to an exhaust pipe (5), the inner cylindrical surface of the air inlet pipe (1) is fixedly connected to a guide tube (7), the upper end of the guide tube (7) is movably fitted with a sealing cover (8), the upper end of the sealing cover (8) is fixedly connected to a connecting rod (9), the upper end of the connecting rod (9) is movably inserted into the hollow pipe (3) and fixedly connected to a first circular plate (10), the upper end of the first circular plate (10) is fixedly connected to a spring (11), the upper end of the spring (11) is fixedly connected to a second circular plate (12), the second circular plate (12) is in movable contact with the upper inner wall of the hollow pipe (3), and an exhaust component (6) for accelerating the steam flow rate is installed on the exhaust pipe (5).

2. The steam pressure protection device for a steam-type scraper evaporator according to claim 1, characterized by: The exhaust component (6) includes a motor (61), which is mounted on the outer cylindrical surface of the exhaust pipe (5). The output end of the motor (61) is movably inserted into the exhaust pipe (5) and fixedly connected to a first bevel tooth (62). The first bevel tooth (62) is meshed with a second bevel tooth (63). The left end of the second bevel tooth (63) is driven to a fan blade (64) via a connecting shaft. The fan blade (64) is fixedly connected to the inner cylindrical surface of the exhaust pipe (5). A temperature sensor (65) is mounted on the fan blade (64).

3. The steam pressure protection device for a steam-type scraper evaporator according to claim 1, characterized by: The upper part of the outer surface of the guide tube (7) is provided with a number of through grooves (13) arranged in a ring array. A sealing ring (15) is movably sleeved on the upper part of the outer surface of the guide tube (7), and the through grooves (13) are located inside the sealing ring (15).

4. The steam pressure protection device for a steam-type scraper evaporator according to claim 3, characterized by: The upper end of the sealing ring (15) is equipped with a plurality of fixed rods (14) arranged in a ring array, and the upper ends of the plurality of fixed rods (14) are fixedly connected to the lower end of the sealing cover (8).

5. The steam pressure protection device for a steam-type scraper evaporator according to claim 1, characterized by: The upper end of the second circular plate (12) is movably connected to a screw (4), and the upper end of the screw (4) is threaded through the upper side of the hollow tube (3).

6. The steam pressure protection device for a steam-type scraped evaporator according to claim 1, characterized in that: The outer cylindrical surfaces of the first circular plate (10) and the second circular plate (12) are slidably connected to the inner cylindrical surface of the hollow tube (3).

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