Exhaust valve group for linear compressor

Abstract

The utility model discloses an exhaust valve group for a linear compressor, which belongs to the technical field of compressors and comprises a valve bin, an upper cover valve disc and a sealing valve disc are arranged on the inner side of the valve bin, a limiting column is arranged in the middle of the upper cover valve disc and the sealing valve disc, a temperature compensation mechanism is arranged in front of the upper cover valve disc, and a refrigerating mechanism is arranged above the valve bin. A first cooling copper pipe is fixedly installed at the front end of the upper cover valve disc, a liquid guide transverse pipe is fixedly connected to the inner wall of the first cooling copper pipe, the exhaust valve set for the linear compressor is additionally provided with a temperature compensation mechanism and a refrigeration mechanism, the temperature compensation mechanism and the refrigeration mechanism supplement each other, and a tiled cooling structure and a continuous cooling structure are adopted; the low-temperature effect of cooling liquid can be evenly transmitted to the valve disc, then the working temperature of the valve disc is reduced, the temperature compensation effect is achieved, the probability of thermal expansion of the valve disc is effectively reduced, the sealing performance of the valve disc is improved, and then the probability of gas leakage is reduced.

Description

Technical Field

[0001] This utility model relates to the field of compressor technology, specifically an exhaust valve assembly for a linear compressor. Background Technology

[0002] A compressor is an important mechanical device that compresses gas to higher pressures for storage, transportation, or use. Compressors have a wide range of applications, covering many fields such as household refrigerators, air conditioning systems, and various processes in industrial production. In terms of working principle, compressors mainly achieve gas compression in two ways: positive displacement compression and pneumatic compression. Positive displacement compressors increase pressure by reducing the volume occupied by the gas, and common types include reciprocating and rotary compressors (such as scroll and screw compressors). Pneumatic compressors increase the velocity of the gas and then convert kinetic energy into pressure energy through a diffuser, and common types include centrifugal and axial compressors.

[0003] Based on existing compressor exhaust valve assemblies, it has been found that when the compressor exhaust valve assembly is in use, the valve disc will expand due to thermal expansion during long-term operation in a high-temperature environment. This will increase the gap, reduce the sealing performance, and thus cause gas leakage and reduce compression efficiency. Utility Model Content

[0004] The purpose of this invention is to provide an exhaust valve assembly for a linear compressor to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an exhaust valve assembly for a linear compressor, comprising a valve chamber, an upper cover valve disc and a sealing valve disc disposed on the inner side of the valve chamber, a limiting column disposed in the middle of the upper cover valve disc and the sealing valve disc, a temperature compensation mechanism disposed in front of the upper cover valve disc, and a refrigeration mechanism disposed above the valve chamber, the temperature compensation mechanism comprising an injection pipe, a first cooling copper pipe, a liquid guiding horizontal pipe, a second cooling copper pipe, a third cooling copper pipe, a liquid drain pipe and a return pipe, the first cooling copper pipe being fixedly installed at the front end of the upper cover valve disc, a liquid guiding horizontal pipe being fixedly connected to the inner wall of the first cooling copper pipe, a second cooling copper pipe being fixedly connected to the inner side of the liquid guiding horizontal pipe, and a third cooling copper pipe being disposed on the inner side of the second cooling copper pipe, the refrigeration mechanism comprising a recovery chamber, a first aluminum plate, a first fan body, a coolant chamber, a second aluminum plate, a second fan body, a water pump body, a liquid extraction pipe and a liquid discharge pipe, and a recovery chamber and a coolant chamber being fixedly installed at the upper end of the valve chamber.

[0006] Optionally, the upper end of the first cooling copper pipe is fixedly connected to a liquid injection pipe, the lower end of the first cooling copper pipe is fixedly connected to a liquid discharge pipe, and the lower end of the liquid discharge pipe is fixedly connected to a return pipe.

[0007] Optionally, the end of the return pipe away from the liquid discharge pipe is inserted into the interior of the recovery chamber, and the end of the injection pipe away from the first cooling copper pipe is inserted into the interior of the coolant chamber.

[0008] Optionally, a first aluminum plate is fixedly installed at the rear end of the recycling bin, and multiple first aluminum plates are distributed from left to right on the outer wall of the recycling bin. A first fan is fixedly installed at the rear end of the first aluminum plate.

[0009] Optionally, a second aluminum plate is fixedly installed at the rear end of the coolant tank, and multiple second aluminum plates are distributed from left to right on the outer wall of the coolant tank. A second fan body is fixedly installed at the rear end of the second aluminum plate.

[0010] Optionally, a water pump body is fixedly installed at the upper end of the coolant tank, a drain pipe is fixedly connected to the upper end of the water pump body, and a pumping pipe is fixedly connected to the left end of the water pump body.

[0011] Optionally, the end of the liquid extraction pipe away from the water pump body is inserted into the interior of the recovery chamber, and the end of the liquid discharge pipe away from the water pump body is inserted into the interior of the coolant chamber.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This invention includes a temperature compensation mechanism and a refrigeration mechanism. The temperature compensation mechanism, through the action of the water pump, evenly circulates the coolant to the valve disc, effectively reducing the temperature of the valve disc during operation and significantly reducing thermal expansion caused by high temperatures. This reduces the increase in the gap between the valve seat and the valve, maintaining good sealing performance. Due to the effective circulation of the coolant, the temperature stability of the valve disc is improved, the sealing surface fit is enhanced, and the probability of gas leakage is reduced. By reducing the impact of thermal expansion on the valve disc, the temperature compensation mechanism helps extend the service life of the compressor and exhaust valve assembly. The refrigeration mechanism, through the operation of the first and second fan bodies, effectively reduces the temperature of the coolant in the coolant tank and the recovery tank. This improves the cooling capacity of the coolant, enabling the valve disc to dissipate heat quickly and evenly. The refrigeration mechanism considers the recycling of coolant, reducing resource consumption and energy waste. Attached Figure Description

[0014] Figure 1 This is a three-dimensional front view structural diagram of the present invention;

[0015] Figure 2 This is a schematic diagram of the structure of this utility model from a frontal view.

[0016] Figure 3 This is a schematic diagram of the three-dimensional rear view structure of this utility model;

[0017] Figure 4This is a three-dimensional left-side view structural schematic diagram of the present invention;

[0018] Figure 5 This is a three-dimensional sectional view of the present invention.

[0019] In the diagram: 1. Valve chamber; 2. Upper cover valve disc; 3. Sealing valve disc; 4. Limiting column; 5. Temperature compensation mechanism; 501. Liquid injection pipe; 502. First cooling copper pipe; 503. Liquid guiding horizontal pipe; 504. Second cooling copper pipe; 505. Third cooling copper pipe; 506. Liquid discharge pipe; 507. Return pipe; 6. Refrigeration mechanism; 601. Recovery chamber; 602. First aluminum sheet; 603. First fan body; 604. Coolant chamber; 605. Second aluminum sheet; 606. Second fan body; 607. Water pump body; 608. Liquid extraction pipe; 609. Liquid discharge pipe. Detailed Implementation

[0020] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of 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.

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figures 1-5 In this embodiment of the present invention, an exhaust valve assembly for a linear compressor includes a valve chamber 1. An upper cover valve disc 2 and a sealing valve disc 3 are disposed on the inner side of the valve chamber 1. A limiting post 4 is disposed in the middle of the upper cover valve disc 2 and the sealing valve disc 3. A temperature compensation mechanism 5 is disposed in front of the upper cover valve disc 2. A refrigeration mechanism 6 is disposed above the valve chamber 1. The temperature compensation mechanism 5 includes an injection pipe 501, a first cooling copper pipe 502, a liquid guiding horizontal pipe 503, a second cooling copper pipe 504, a third cooling copper pipe 505, a liquid drain pipe 506, and a return pipe 507. The first cooling copper pipe 502 is fixedly installed at the front end of the upper cover valve disc 2. A liquid guiding horizontal pipe 503 is fixedly connected to the inner wall of the first cooling copper pipe 502. The second cooling copper pipe 504 is fixedly connected to the inner side of the liquid guiding horizontal pipe 503. The third cooling copper pipe 505 is disposed inside the second cooling copper pipe 504. The upper end of the first cooling copper pipe 502 is fixed... A liquid injection pipe 501 is connected to the lower end of the first cooling copper pipe 502, which is fixedly connected to a liquid discharge pipe 506. A return pipe 507 is fixedly connected to the lower end of the liquid discharge pipe 506. The end of the return pipe 507 away from the liquid discharge pipe 506 is inserted into the interior of the recovery chamber 601. The end of the liquid injection pipe 501 away from the first cooling copper pipe 502 is inserted into the interior of the coolant chamber 604. The liquid injection pipe 501 ensures that the coolant can be efficiently delivered to the valve plate, providing a necessary channel for temperature compensation. The first cooling copper pipe 502, the second cooling copper pipe 504, and the third cooling copper pipe 505, along with the liquid guide horizontal pipe 503, constitute the flow path of the coolant, ensuring that the coolant can be evenly dispersed and cover the valve plate, improving cooling efficiency and uniformity. The liquid discharge pipe 506 and the return pipe 507 enable the coolant to effectively return to the recovery chamber 601, achieving recycling.

[0024] The refrigeration mechanism 6 includes a recovery chamber 601, a first aluminum plate 602, a first fan body 603, a coolant chamber 604, a second aluminum plate 605, a second fan body 606, a water pump body 607, a liquid extraction pipe 608, and a liquid discharge pipe 609. The recovery chamber 601 and the coolant chamber 604 are fixedly installed at the upper end of the valve chamber 1. The first aluminum plate 602 is fixedly installed at the rear end of the recovery chamber 601. Multiple first aluminum plates 602 are distributed from left to right on the outer wall of the recovery chamber 601. A first aluminum plate 605 is fixedly installed at the rear end of each first aluminum plate 602. A first fan body 603 and a second aluminum plate 605 are fixedly installed at the rear end of the coolant reservoir 604. Multiple second aluminum plates 605 are distributed from left to right on the outer wall of the coolant reservoir 604. A second fan body 606 is fixedly installed at the rear end of the second aluminum plates 605. A water pump body 607 is fixedly installed at the upper end of the coolant reservoir 604. A drain pipe 609 is fixedly connected to the upper end of the water pump body 607. A suction pipe 608 is fixedly connected to the left end of the water pump body 607. The end of the suction pipe 608 away from the water pump body 607 is inserted into the return... Inside the collection chamber 601, the end of the drain pipe 609 away from the water pump body 607 is inserted into the coolant tank 604. The collection chamber 601 collects the returned coolant, providing a stable starting point for the refrigeration cycle and ensuring a continuous supply of coolant. The first aluminum plate 602 and the second aluminum plate 605, as part of the heat exchanger, accelerate heat dissipation through the action of the fan, improving the cooling efficiency of the coolant. The first fan body 603 and the second fan body 606 accelerate the heat exchange between the coolant and the aluminum plates through the blowing action, reducing the temperature of the coolant and thus improving the working efficiency of the entire refrigeration mechanism 6. The coolant tank 604 stores and supplies coolant, ensuring sufficient coolant in the refrigeration mechanism 6 and providing the necessary material basis for continuous refrigeration. The water pump body 607 is responsible for driving the circulation of coolant in the system. Its efficient operation ensures the uniform distribution and recycling of coolant. The liquid extraction pipe 608 and the liquid drainage pipe 609 constitute the flow channel of coolant, ensuring the continuous flow of coolant and thus achieving an effective cooling effect.

[0025] The working principle of this utility model is as follows: The exhaust valve assembly for the linear compressor is equipped with a temperature compensation mechanism 5 and a refrigeration mechanism 6. Before using this exhaust valve assembly, it is necessary to install the exhaust valve assembly on the compressor in advance, and connect the first fan body 603, the second fan body 606, and the water pump body 607 to the power supply and control terminal. When using the exhaust valve of this compressor, the temperature compensation mechanism 5 and the refrigeration mechanism 6 are activated simultaneously. The first fan body 603 and the second fan body 606 in the refrigeration mechanism 6 are connected to the power supply to blow air, thereby effectively reducing the temperature on the first aluminum plate 602 and the second aluminum plate 605, so that the temperature of the coolant in the recovery chamber 601 and the coolant chamber 604 is reduced, ensuring the low-temperature effect of the coolant. The water pump body 607 is activated in conjunction with the temperature compensation mechanism 5, and the water pump body 607 pumps the coolant to the injection chamber. Within the liquid pipe 501, the coolant flows downwards and fills the first cooling copper pipe 502, the liquid guide horizontal pipe 503, the second cooling copper pipe 504, and the third cooling copper pipe 505, achieving a uniformly dispersed low-temperature effect. This uniformly cools the valve disc. After the cooling operation is completed, the coolant, under the action of the water pump body 607, flows back to the recovery chamber 601 through the lower liquid pipe 506 and the return pipe 507, achieving a circulating cooling effect. In summary, the temperature compensation mechanism 5 and the cooling mechanism 6 complement each other, employing a flat cooling structure and a continuous cooling structure. This allows the low-temperature effect of the coolant to be uniformly transferred to the valve disc, thereby reducing the operating temperature of the valve disc and achieving a temperature compensation effect. This effectively reduces the probability of thermal expansion of the valve disc, improves the sealing performance of the valve disc, and thus reduces the probability of gas leakage.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An exhaust valve assembly for a linear compressor, comprising a valve chamber (1), wherein an upper cover valve disc (2) and a sealing valve disc (3) are disposed on the inner side of the valve chamber (1), and a limiting post (4) is disposed in the middle of the upper cover valve disc (2) and the sealing valve disc (3), characterized in that: A temperature compensation mechanism (5) is provided in front of the upper cover valve disc (2), and a refrigeration mechanism (6) is provided above the valve chamber (1). The temperature compensation mechanism (5) includes an injection pipe (501), a first cooling copper pipe (502), a liquid guiding horizontal pipe (503), a second cooling copper pipe (504), a third cooling copper pipe (505), a liquid discharge pipe (506), and a return pipe (507). The first cooling copper pipe (502) is fixedly installed at the front end of the upper cover valve disc (2), and a liquid guiding horizontal pipe (503) is fixedly connected to the inner wall of the first cooling copper pipe (502). The inner side of the liquid guiding horizontal pipe (503) is fixedly connected to a second cooling copper pipe (504), and the inner side of the second cooling copper pipe (504) is provided with a third cooling copper pipe (505). The refrigeration mechanism (6) includes a recovery chamber (601), a first aluminum plate (602), a first fan body (603), a coolant chamber (604), a second aluminum plate (605), a second fan body (606), a water pump body (607), a liquid extraction pipe (608), and a liquid discharge pipe (609). The upper end of the valve chamber (1) is fixedly installed with a recovery chamber (601) and a coolant chamber (604).

2. The exhaust valve assembly for a linear compressor according to claim 1, characterized in that: The upper end of the first cooling copper pipe (502) is fixedly connected to a liquid injection pipe (501), the lower end of the first cooling copper pipe (502) is fixedly connected to a liquid discharge pipe (506), and the lower end of the liquid discharge pipe (506) is fixedly connected to a return pipe (507).

3. The exhaust valve assembly for a linear compressor according to claim 2, characterized in that: The end of the return pipe (507) away from the liquid discharge pipe (506) is inserted into the interior of the recovery chamber (601), and the end of the liquid injection pipe (501) away from the first cooling copper pipe (502) is inserted into the interior of the coolant chamber (604).

4. The exhaust valve assembly for a linear compressor according to claim 1, characterized in that: The rear end of the recycling bin (601) is fixedly installed with a first aluminum plate (602), and multiple first aluminum plates (602) are distributed from left to right on the outer wall of the recycling bin (601). The rear end of the first aluminum plate (602) is fixedly installed with a first fan body (603).

5. The exhaust valve assembly for a linear compressor according to claim 1, characterized in that: A second aluminum plate (605) is fixedly installed at the rear end of the coolant tank (604). Multiple second aluminum plates (605) are distributed from left to right on the outer wall of the coolant tank (604). A second fan body (606) is fixedly installed at the rear end of the second aluminum plate (605).

6. The exhaust valve assembly for a linear compressor according to claim 1, characterized in that: A water pump body (607) is fixedly installed at the upper end of the coolant tank (604), and a drain pipe (609) is fixedly connected to the upper end of the water pump body (607). A pumping pipe (608) is fixedly connected to the left end of the water pump body (607).

7. An exhaust valve assembly for a linear compressor according to claim 6, characterized in that: The end of the liquid extraction pipe (608) away from the water pump body (607) is inserted into the interior of the recovery chamber (601), and the end of the liquid discharge pipe (609) away from the water pump body (607) is inserted into the interior of the coolant chamber (604).

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