Steam pipeline structure of plywood hot press

Abstract

The utility model discloses a steam pipeline structure of a plywood hot press, and relates to the field of hot presses. The device comprises a steam inlet pipe and a steam return pipe, the steam return pipe is connected and provided with a three-way pipe, the bottom end of the three-way pipe is connected and provided with a water collecting tank, the bottom end of the water collecting tank is provided with a water drainage port and a water drainage pipe communicated with the water drainage port, and a sealing valve element is clamped in the water drainage port in a sealing mode. A buoyancy assembly located above the sealing valve element is further installed in the water collecting tank, and the buoyancy assembly can drive the sealing valve element to open the water outlet when being subjected to buoyancy of condensate water. Condensate water in the steam pipeline and the hot press hot plate is collected through the water collecting tank, and the condensate water is prevented from remaining in the steam pipeline and the hot press hot plate to increase energy consumption of the hot press and affect the hot pressing effect of the hot press. And when the liquid level of the condensate water in the water collecting tank overflows the buoyancy assembly, the buoyancy assembly drives the sealing valve element to move upwards under the buoyancy action of the condensate water, so that the water drainage opening in the bottom end of the water collecting tank is opened for water drainage.

Description

Technical Field

[0001] This utility model belongs to the field of hot presses, and more specifically, it relates to a steam pipeline structure for a plywood hot press. Background Technology

[0002] A hot press is a device used to produce plywood. It features a vertically movable hot platen that applies pressure to the plywood. The hot platen contains steam channels for heating the plywood. During hot pressing, steam is introduced into the hot platen through steam pipes and recovered through steam return pipes to achieve steam circulation. However, condensation occurs within the hot platen due to heat exchange during steam heating. This condensate accumulates in the steam pipes and the hot platen. If the condensate is not drained promptly, it increases energy consumption, raises production costs, and affects the hot pressing effect. Current technology for draining condensate from the steam pipes and hot platen cannot accurately remove the condensate, leading to steam overflow from the drain outlet, wasting steam and affecting steam pressure stability. Utility Model Content

[0003] In view of the problems in the related technologies, this utility model proposes a steam pipeline structure for a plywood hot press to overcome the above-mentioned technical problems existing in the existing related technologies.

[0004] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0005] This utility model relates to a steam pipeline structure for a plywood hot press, comprising a steam inlet pipe and a steam return pipe connected to the hot platen of the plywood hot press. A tee pipe is connected and installed on the steam return pipe, and a water collection tank is connected and installed at the bottom end of the tee pipe. A drain outlet and a drain pipe communicating with the drain outlet are provided at the bottom end of the water collection tank. A sealing valve core is sealed and installed inside the drain outlet. A buoyancy component located above the sealing valve core is also installed inside the water collection tank. The buoyancy component can drive the sealing valve core to open the drain outlet when subjected to the buoyancy of condensate water.

[0006] Furthermore, the buoyancy assembly includes a positioning frame, which is fixedly installed on the inner wall of the water collection tank. A limiting plate is fixedly installed in the middle of the positioning frame, and a connecting shaft is slidably inserted into the limiting plate. A float ball is fixedly installed at the top of the connecting shaft, and the bottom end of the connecting shaft is fixedly connected to the top of the sealing valve core.

[0007] Furthermore, a pressure spring is fitted at the lower end of the connecting shaft, with the top end of the pressure spring abutting against the bottom surface of the limiting plate and the bottom end of the pressure spring abutting against the top surface of the sealing valve core.

[0008] Furthermore, a plurality of circumferentially distributed limiting strips are fixedly installed on the outer ring of the top surface of the drain outlet, and the sealing valve core is slidably engaged with the inner ring of the limiting strips.

[0009] Furthermore, both the drain outlet and the sealing valve core are frustum-shaped structures.

[0010] Furthermore, the float is a metal float.

[0011] This utility model has the following beneficial effects:

[0012] 1. In this utility model, a water collection tank is installed on the steam return pipe to collect condensate from the steam pipeline and the hot platen of the hot press, preventing condensate residue from increasing the energy consumption of the hot press and affecting its hot pressing effect. When the condensate level in the water collection tank exceeds the buoyancy component, the buoyancy component drives the sealing valve core upward under the buoyancy of the condensate, opening the drain port at the bottom of the water collection tank and discharging the condensate. When the condensate level is lower than the buoyancy component, the buoyancy component drives the sealing valve core downward to reset, sealing the drain port again and preventing steam leakage from the drain port after the water in the water collection tank is emptied. Thus, through the cooperation of the drain port, sealing valve core, and buoyancy component, automatic drainage of the steam pipeline can be achieved, and steam leakage during drainage can be prevented, ensuring the stability of the steam pressure in the steam pipeline.

[0013] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the utility model embodiments, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For those skilled in the art, the drawings can be obtained from these drawings without creative effort.

[0015] Figure 1 This is one of the three-dimensional structural diagrams of the steam pipeline structure of the plywood hot press of this utility model;

[0016] Figure 2 This is the second three-dimensional structural diagram of the steam pipeline structure of the plywood hot press of this utility model;

[0017] Figure 3 This utility model Figure 2 A magnified schematic diagram of the structure at point A.

[0018] In the diagram: 1. Steam inlet pipe; 2. Steam return pipe; 3. Tee pipe; 4. Water collection tank; 5. Drain pipe; 6. Float ball; 7. Drain outlet; 8. Sealing valve core; 9. Limiting strip; 10. Connecting shaft; 11. Pressure spring; 12. Limiting plate; 13. Positioning frame. Detailed Implementation

[0019] The technical solutions of the utility model embodiments will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the utility model, and not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the utility model.

[0020] Please see Figures 1-3 As shown, this utility model is a steam pipeline structure for a plywood hot press, including a steam inlet pipe 1 and a steam return pipe 2 connected to the hot plate of the plywood hot press. A three-way pipe 3 is connected and installed on the steam return pipe 2. A water collection tank 4 is connected and installed at the bottom end of the three-way pipe 3. A drain outlet 7 and a drain pipe 5 connected to the drain outlet 7 are provided at the bottom end of the water collection tank 4. A sealing valve core 8 is sealed inside the drain outlet 7. A buoyancy component located above the sealing valve core 8 is also installed inside the water collection tank 4. The buoyancy component can drive the sealing valve core 8 to open the drain outlet 7 when subjected to the buoyancy of condensate water.

[0021] The steam inlet pipe 1 is connected to the steam outlet of the steam generator, and the steam return pipe 2 is connected to the inlet of the steam generator. When the plywood hot press is working, the steam generator delivers steam to the hot plate of the hot press through the steam inlet pipe 1 to heat the hot plate. The steam then flows back to the steam generator through the steam return pipe 2. When condensate is generated in the hot plate, it is transported downwards through the three-way pipe 3 to the water collection tank 4 during the steam return pipe 2 process, causing the liquid level in the water collection tank 4 to gradually rise. When the condensate level in the water collection tank 4 overflows the buoyancy component, the buoyancy component... Under the buoyancy of the condensate, the sealing valve core 8 is driven upward, which opens the drain port 7 at the bottom of the water collection tank 4, allowing the condensate in the water collection tank 4 to be discharged outward through the drain port 7 and the drain pipe 5. When the condensate level is lower than the buoyancy component, the buoyancy component drives the sealing valve core 8 downward to reset, sealing the drain port 7 again, preventing steam from leaking from the drain port 7 after the water in the water collection tank 4 is emptied. Thus, through the cooperation of the drain port 7, the sealing valve core 8 and the buoyancy component, not only can the automatic drainage of the steam pipeline be achieved, but also the leakage of steam during drainage can be prevented, ensuring the stability of the steam pressure in the steam pipeline.

[0022] Specifically, the buoyancy component includes a positioning frame 13, which is fixedly installed on the inner wall of the water collection tank 4. A limiting plate 12 is fixedly installed in the middle of the positioning frame 13. A connecting shaft 10 is slidably inserted on the limiting plate 12. A float ball 6 is fixedly installed at the top of the connecting shaft 10. The bottom end of the connecting shaft 10 is fixedly connected to the top end of the sealing valve core 8.

[0023] When the liquid level in the water collection tank 4 rises to the position of the float ball 6, the float ball 6 floats upward under the influence of the condensate. At the same time, the float ball 6 pulls the sealing valve core 8 upward through the connecting shaft 10, so that the sealing valve core 8 is separated from the drain outlet 7, causing the drain outlet 7 to open and begin to drain water. When the condensate in the water collection tank 4 is gradually discharged, and the liquid level is lower than the height of the float ball 6, the sealing valve core 8 and the float ball 6 move downward under the action of gravity, so that the sealing valve core 8 closes the drain outlet 7 again to seal it.

[0024] Specifically, a pressure spring 11 is fitted at the lower end of the connecting shaft 10. The top end of the pressure spring 11 abuts against the bottom surface of the limiting plate 12, and the bottom end of the pressure spring 11 abuts against the top surface of the sealing valve core 8.

[0025] When the float 6 is affected by buoyancy and drives the sealing valve core 8 to move upward and open, the sealing valve core 8 will push the pressure spring 11 to retract and generate a reset force. Then, when the liquid level is lower than the height of the float 6, the pressure spring 11 can drive the sealing valve core 8 to move downward and abut against the drain port 7 through the reset force. Thus, the sealing valve core 8 is more firmly abutted against the drain port 7, thereby improving the sealing performance of the drain port 7.

[0026] Specifically, multiple circumferentially distributed limiting strips 9 are fixedly installed on the outer ring of the top surface of the drain outlet 7. The sealing valve core 8 is slidably clamped into the inner ring of the limiting strips 9, which can limit the sealing valve core 8 through the limiting strips 9, making the sealing valve core 8 more stable when it moves up and down.

[0027] Specifically, both the drain outlet 7 and the sealing valve core 8 are frustoconical structures, which allows the sealing valve core 8 to tightly abut and engage with the drain outlet 7 when it moves downward, thereby improving the sealing performance between the sealing valve core 8 and the drain outlet 7.

[0028] Specifically, float 6 is a metal float, which has high temperature resistance, preventing float 6 from being damaged by the high temperature of steam and condensate, thus improving the service life of float 6.

[0029] The preferred embodiments of the utility model disclosed above are merely illustrative of the utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the utility model, thereby enabling those skilled in the art to better understand and utilize the utility model.

Claims

1. A structure of steam pipeline for plywood hot press, comprising a steam inlet pipe (1) and a steam return pipe (2) connected with a hot flat plate of a plywood hot press, characterized in that: The steam return pipe (2) is connected with a tee pipe (3), the bottom end of the tee pipe (3) is connected with a water collecting tank (4), the bottom end of the water collecting tank (4) is provided with a drain port (7) and a drain pipe (5) communicated with the drain port (7), the drain port (7) is sealed with a sealing valve core (8), the water collecting tank (4) is further provided with a buoyancy assembly above the sealing valve core (8), the buoyancy assembly can drive the sealing valve core (8) to open the drain port (7) when the condensate water has buoyancy.

2. The steam line structure of a plywood hot press according to claim 1, characterized in that: The buoyancy assembly comprises a positioning frame (13) fixedly installed on the inner wall of the water collecting tank (4), the middle part of the positioning frame (13) is fixedly installed with a limiting plate (12), the limiting plate (12) is slidably inserted with a connecting shaft (10), the top end of the connecting shaft (10) is fixedly installed with a floating ball (6), and the bottom end of the connecting shaft (10) is fixedly connected with the top end of the sealing valve core (8).

3. The steam line structure of a plywood hot press according to claim 2, characterized in that: The lower end of the connecting shaft (10) is sleeved with a pressure spring (11), the top end of the pressure spring (11) abuts against the bottom surface of the limiting plate (12), and the bottom end of the pressure spring (11) abuts against the top surface of the sealing valve core (8).

4. The plywood hot press steam line structure according to claim 1, characterized in that: The outer circle of the top surface of the drain port (7) is fixedly installed with a plurality of limiting strips (9) distributed in a circle, and the sealing valve core (8) is slidably inserted into the inner circle of the limiting strips (9).

5. The structure of claim 1, wherein: The drain port (7) and the sealing valve core (8) are both inverted circular trapezoidal structures.

6. The plywood hot press steam line structure according to claim 2, characterized in that: The floating ball (6) is a metal floating ball.

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