Intermittent pressurizing rapid vacuum breaking device

Abstract

The utility model discloses an intermittent pressurization rapid vacuum breaking device which comprises a plurality of vacuum breaking units connected to a gate cavity, the vacuum breaking units are provided with filter element modules, and the filter element modules are connected with the gate cavity through vacuum breaking pipelines; and the outer side of the filter element module is sleeved with a compression air inlet module. On the basis of an original normal-pressure air vacuum breaking device, a double-cavity pressurization air inlet structure is additionally arranged, under the original suction effect, the air suction amount is intermittently increased through piston movement cooperation, sucked air is compressed, and therefore the air inlet efficiency is intermittently improved through pressurization, and compared with original normal-pressure air vacuum breaking, the vacuum breaking efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of glass production, in particular to an intermittent pressurized rapid air-breaking device. Background Art

[0002] In the production of magnetron sputtering coated glass, the inlet and outlet of the coating equipment need to frequently switch between vacuum and normal pressure. There are two common air-breaking methods: compressed air breaking and normal pressure air breaking. The former requires the air compressor to run continuously at full load, which consumes a lot of energy. The latter is affected by complex atmospheric environmental factors and has a slow air intake efficiency. In particular, most existing normal pressure air breaking devices use the method of directly contacting the filter element with the atmosphere to extract air for breaking, which can easily lead to rapid contamination and damage of the filter element, further affecting the efficiency of breaking. Summary of the invention

[0003] Purpose of the invention: In order to overcome the deficiencies in the prior art, the utility model provides an intermittently pressurized rapid vacuum breaking device, which improves the air intake efficiency through intermittently pressurized air intake, thereby achieving energy-saving and efficient vacuum breaking.

[0004] Technical solution: To achieve the above-mentioned purpose, the utility model provides an intermittent pressurized rapid air-breaking device, comprising a plurality of air-breaking units connected to a gate cavity, wherein the air-breaking units are provided with a filter element module, and the filter element module is connected to the gate cavity through an air-breaking pipeline; a compressed air intake module is provided on the outer side of the filter element module.

[0005] Furthermore, the compressed air intake module includes a shell body covered on the outside of the filter element module, an air intake cavity is formed inside the shell, a compressed air intake structure is arranged on the upper part of the shell, and the compressed air intake structure connects the external atmosphere with the internal air intake cavity.

[0006] Furthermore, the compressed air intake structure includes an air intake port, the air intake port is connected to a first boost chamber, the first boost chamber is connected to a second boost chamber through a transition port, and the second boost chamber is connected to the air intake chamber.

[0007] Furthermore, the compressed air intake structure is provided with an inner cylinder, an outer cylinder is coaxially sleeved on the outer side of the inner cylinder, and the inner cylinder and the outer cylinder are both fixedly connected to the shell; a piston cylinder is fitted on the outer side of the inner cylinder, and the piston structure at the bottom of the piston cylinder fits with the cylinder wall of the inner cylinder and the outer cylinder for piston movement; the bottom surface of the piston structure and the gap between the inner cylinder and the outer cylinder constitute the second boosting chamber, the upper end of the piston cylinder is closed, and the inner cavity of the piston cylinder is connected with the inner cavity of the inner cylinder to constitute the first boosting chamber; the air inlet is located at the upper end of the cylinder wall of the piston cylinder, and the transition port is located at the lower end of the cylinder wall of the inner cylinder.

[0008] Furthermore, the air inlet and the transition port each include a plurality of through holes surrounding the corresponding cylinder wall, and the plurality of through holes are evenly distributed.

[0009] Furthermore, a baffle structure is provided at the top end of the piston cylinder, and the baffle structure is circumferentially buckled on the outer side of the air inlet.

[0010] Beneficial effect: The utility model is an intermittent pressurized rapid air-breaking device. On the basis of the original normal-pressure air-breaking device, a double-chamber pressurized air intake structure is added. Under the original suction action, the air intake volume is intermittently increased through the cooperation of piston movement, and then the inhaled air is compressed, so as to intermittently improve the air intake efficiency through pressurization. Compared with the original normal-pressure air-breaking, the air-breaking efficiency is improved. And there is no need to supply compressed air through the continuous full-load operation of the air compressor, so as to achieve energy-saving and efficient vacuum breaking. At the same time, the air intake structure also has a dust-proof effect, which can prevent dust in the air from contaminating the filter element, and then prevent the filter element from being blocked and affecting the normal air intake. Therefore, the internal filter element can also be made of materials with better air permeability, which further improves the air intake efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Attached Figure 1 This is a schematic diagram of the connection relationship structure of an embodiment of the utility model;

[0012] Attached Figure 2 It is a schematic structural perspective view of a compressed air intake module according to an embodiment of the utility model. DETAILED DESCRIPTION

[0013] The utility model is further described below in conjunction with the accompanying drawings.

[0014] As attached Figure 1-2 The intermittently pressurized rapid air-breaking device comprises a plurality of air-breaking units 2 connected to a gate cavity 1, wherein the air-breaking units 2 are provided with filter element modules 3, and the filter element modules 3 are connected to the gate cavity 1 via an air-breaking pipeline 4; a compressed air intake module 6 is sleeved on the outer side of the filter element module 3.

[0015] This solution is applied to the air breaking at the inlet and outlet ends of coating equipment, especially in the production of coated glass. By adding a compressed air intake module on the basis of the original atmospheric pressure air breaking pipeline, the air drawn in is intermittently compressed, thereby improving the air intake efficiency.

[0016] The compressed air intake module 6 includes a shell 61 which is covered on the outside of the filter element module 3. The interior of the shell 61 forms an air intake cavity. A compressed air intake structure 62 is provided on the upper part of the shell 61. The compressed air intake structure 62 connects the outside atmosphere with the internal air intake cavity. The shell part can protect the filter element. The air enters the air intake cavity through the compressed air intake structure, passes through the filter element, and is guided to the gate cavity by the air-breaking pipeline to achieve air-breaking. Not only can the air entering the air intake cavity be compressed, but also a certain dust-proof effect is achieved, and the air intake efficiency can be avoided from being affected by the clogging of the filter element. Since there is no worry about the clogging of the filter element, the filter element can be made of polyester fiber material, which has smaller air resistance. Under the effect of cyclic supercharging, the air intake efficiency can be further improved.

[0017] The compressed air intake structure 62 includes an air inlet 621, which is connected to a first boost chamber 622, which is connected to a second boost chamber 624 via a transition port 623, and which is connected to the air intake chamber. Normal pressure air is sucked in from the air inlet under the suction of the air-breaking pipeline, and then passes through the two boost chambers in sequence into the air intake chamber, which can better push the air through the filter element, thereby achieving the purpose of improving the air intake efficiency.

[0018] Preferably, the compressed air intake structure 62 is provided with an inner cylinder 63, and an outer cylinder 64 is coaxially sleeved on the outer side of the inner cylinder 63, and the inner cylinder 63 and the outer cylinder 64 are both fixedly connected to the shell 61; a piston cylinder 65 is fitted on the outer side of the inner cylinder 63, and the piston structure at the bottom of the piston cylinder 65 fits with the cylinder wall of the inner cylinder 63 and the outer cylinder 64 for piston movement; the gap between the bottom surface of the piston structure and the inner cylinder 63 and the outer cylinder 64 constitutes the second boosting chamber 624, the upper end of the piston cylinder 65 is closed, and the inner cavity of the piston cylinder 65 is connected with the inner cavity of the inner cylinder 63 to constitute the first boosting chamber 622; the air inlet 621 is located at the upper end of the cylinder wall of the piston cylinder 65, and the transition port 623 is located at the lower end of the cylinder wall of the inner cylinder 63.

[0019] Through the coordination of multiple sleeve structures, a dual boost chamber structure is formed. Since the pump valve structure of the air-breaking pipeline provides a stable suction force, the general flow direction of the air maintains an inward flow trend. When the piston cylinder moves upward, the space of the two boost chambers increases at the same time, and the air flowing through the two chambers at the same time flows toward the air inlet chamber, resulting in a decrease in the pressure in the chamber, thereby sucking in more air from the outside atmosphere for filling; when the piston cylinder moves to the upper limit position, it then moves downward, compressing the air just sucked into the chamber, and under the traction of the main airflow, it flows to the air inlet chamber, thereby causing a short-term pressurization in the air inlet chamber, increasing the rate of air passing through the filter element, and greatly improving the air-breaking efficiency compared to the original normal pressure air-breaking. Moreover, the energy consumption driven by the piston movement is more energy-saving than the continuous operation of the air compressor at full load. The movement of the piston cylinder can be driven by an oil cylinder or an air cylinder.

[0020] The air inlet 621 and the transition port 623 both include a plurality of through holes surrounding the corresponding cylinder wall, and the plurality of through holes are evenly arranged. By setting a porous structure, the air is subjected to multiple diversions and buffered when passing through the compressed air intake structure, so as to avoid the air rushing into the cavity quickly and directly causing excessive impact on the internal filter element, thereby affecting the service life of the filter element. The evenly surrounding arrangement of the multiple holes can ensure the balance and stability of the air intake.

[0021] The top of the piston cylinder 65 is provided with a baffle structure 66, which is circumferentially buckled on the outside of the air inlet 621. That is, an umbrella-shaped baffle structure is provided on the top of the piston cylinder, which can restrain part of the air around the air inlet when the piston cylinder moves up and down, especially when it moves downward, to prevent it from being squeezed and diffused to the surroundings, resulting in a negative pressure outside the air inlet that is lower than that inside, thereby avoiding the phenomenon of air backflow.

[0022] The above are only preferred embodiments of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. An intermittent pressurized rapid air-breaking device, characterized in that: The invention comprises a plurality of air-breaking units (2) connected to a gate cavity (1), wherein the air-breaking units (2) are provided with a filter element module (3), and the filter element module (3) is connected to the gate cavity (1) via an air-breaking pipeline (4); and a compressed air intake module (6) is sleeved on the outer side of the filter element module (3).

2. The intermittent pressurized rapid air-breaking device according to claim 1, characterized in that: The compressed air intake module (6) comprises a shell (61) which is covered on the outside of the filter element module (3), an air intake cavity is formed inside the shell (61), and a compressed air intake structure (62) is arranged on the upper part of the shell (61), and the compressed air intake structure (62) connects the external atmosphere with the internal air intake cavity.

3. The intermittent pressurized rapid air-breaking device according to claim 2, characterized in that: The compressed air intake structure (62) comprises an air intake port (621), wherein the air intake port (621) is connected to a first boost chamber (622), wherein the first boost chamber (622) is connected to a second boost chamber (624) via a transition port (623), and the second boost chamber (624) is connected to the air intake chamber.

4. The intermittent pressurized rapid air-breaking device according to claim 3 is characterized in that: The compressed air intake structure (62) is provided with an inner cylinder (63), and an outer cylinder (64) is coaxially sleeved on the outer side of the inner cylinder (63), and the inner cylinder (63) and the outer cylinder (64) are both fixedly connected to the shell (61); a piston cylinder (65) is sleeved on the outer side of the inner cylinder (63), and the piston structure at the bottom of the piston cylinder (65) is in contact with the cylinder wall of the inner cylinder (63) and the outer cylinder (64) for piston movement; The gap between the bottom surface of the piston structure and the inner cylinder (63) and the outer cylinder (64) forms the second boosting chamber (624); the upper end of the piston cylinder (65) is closed, and the inner cavity of the piston cylinder (65) is connected to the inner cavity of the inner cylinder (63) to form the first boosting chamber (622); the air inlet (621) is located at the upper end of the cylinder wall of the piston cylinder (65), and the transition port (623) is located at the lower end of the cylinder wall of the inner cylinder (63).

5. The intermittent pressurized rapid air-breaking device according to claim 4, characterized in that: The air inlet (621) and the transition port (623) both include a plurality of through holes surrounding the corresponding cylinder wall, and the plurality of through holes are evenly distributed.

6. The intermittent pressurized rapid air-breaking device according to claim 5, characterized in that: A baffle structure (66) is provided at the top end of the piston cylinder (65), and the baffle structure (66) is circumferentially buckled on the outside of the air inlet (621).

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