Cylinder cover for compressor

Abstract

The utility model discloses a cylinder cover for a compressor, and the cylinder cover comprises a gas inlet structure which is used for enabling gas to pass through and enabling the gas to enter a specified structure; the gas outlet structure is used for allowing gas to pass through, so that the gas is discharged from a specified structure; the heat insulation part is arranged between the air inlet structure and the air outlet structure, and the air inlet structure and the air outlet structure are separated by the heat insulation part. The air inlet structure and the air outlet structure can be independently arranged, the temperature of high-temperature air in the air outlet structure cannot be conducted to the air inlet structure through the metal partition plate, the temperature of the air inlet structure is stable, and the air suction volume efficiency of the compressor air cylinder cannot be affected.

Description

Technical Field

[0001] The invention relates to the technical field of compressor manufacturing, and in particular to a cylinder head for a compressor. Background Art

[0002] The cylinder head is an important component of the compressor. It is located at the top of the cylinder and together with the piston and cylinder forms a closed compression volume.

[0003] In the prior art, the cylinder head on the air-cooled piston compressor is mainly an integral structural part made of metal materials (such as aluminum alloy materials). In order to achieve the purpose of isolating the airflow, a layer of isolation plate is set between the intake chamber and the exhaust chamber of the cylinder head; however, this form cannot block the transfer of heat due to the relatively good heat transfer performance of metal materials; the high-temperature gas entering the exhaust chamber transfers heat to the gas in the intake chamber through the metal isolation plate, thereby causing the intake temperature to rise. The increase in intake temperature will also increase the exhaust temperature after compression. Due to the increase in intake chamber temperature, the compressor cylinder suction volume efficiency will be affected, resulting in a decrease in exhaust volume, which will have an adverse effect on the performance of the compressor. At the same time, it will accelerate the aging of important components of the compressor and shorten the service life of important components, such as valves, sealing gaskets and coolers.

[0004] Therefore, it is necessary to provide a cylinder head for a compressor to solve the above problems existing in the prior art. Summary of the invention

[0005] The object of the present invention is to provide a cylinder head for a compressor, which is used to hinder the heat conduction between the air inlet cavity and the air outlet cavity of the cylinder head, and can reduce the influence of high-temperature gas on the compressor.

[0006] To achieve the above object, the technical solution of the present invention is as follows:

[0007] A cylinder head for a compressor, comprising:

[0008] An air intake structure, the air intake structure is used to pass the gas so that the gas enters the designated structure;

[0009] An air outlet structure, the air outlet structure is used to pass the gas so that the gas is discharged from the designated structure;

[0010] A heat insulating portion is disposed between the air inlet structure and the air outlet structure to separate the air inlet structure from the air outlet structure.

[0011] By adopting the above technical solution, an isolation part is provided to separate the air intake structure from the air outlet structure, that is, the air intake structure and the air outlet structure are independently provided, and the heat insulation part can effectively block the conduction of heat, so that the high-temperature gas in the air outlet structure will not be conducted to the air intake structure through the metal partition, and the temperature of the air intake structure is stable, so the air intake volume efficiency of the compressor cylinder will not be affected, the exhaust volume is stable, and it will not have an adverse effect on the performance of the compressor.

[0012] Optionally, the heat insulation portion is a separation groove formed by side walls adjacent to the air inlet structure and the air outlet structure.

[0013] By adopting the above technical solution, the heat insulation part is specifically a partition groove, that is, the gap between the air intake structure and the air outlet structure. The air intake structure and the air outlet structure are separated by the gap, which reduces the use of heat insulation materials and improves economic benefits. At the same time, the airflow in the external environment can pass through the partition groove, which can bring part of the heat from the side walls of the air intake structure and the air outlet structure, further reducing heat conduction.

[0014] Optionally, the distance between adjacent side walls of the air inlet structure and the air outlet structure is 4-12 mm.

[0015] By adopting the above technical solution, the conduction of heat can be effectively hindered, thereby reducing the impact of the high-temperature area on the low-temperature area.

[0016] Optionally, a mounting member is further included, and the air inlet structure and the air outlet structure are both arranged on the mounting member.

[0017] By adopting the above technical solution, the mounting parts fix the air intake structure and the air outlet structure, so that the air intake structure can move synchronously with the air outlet structure. When the cylinder head is connected to the compressor, the position movement of the air intake structure and the air outlet structure can be controlled at the same time, and the operation process is convenient.

[0018] Optionally, the mounting piece is in the shape of a plate, and the thickness of the mounting piece is 10-28 mm.

[0019] By adopting the above technical solution, the thicker connecting plate can withstand greater force and is not easily deformed. At the same time, within this range, it performs better in terms of vibration resistance, which can reduce the mechanical vibration caused by the cylinder action, thereby improving the dynamic performance of the entire system; the thickness range of 10-28mm provides design flexibility, and the appropriate thickness can be selected according to different application environments and load requirements to adapt to different working conditions.

[0020] Optionally, the distance between the mounting member and the end surface of the air intake structure facing away from each other is 100-130 mm.

[0021] By adopting the above technical solution, the distance between the mounting part and the end face opposite to the intake structure is 100-130mm, that is, the overall thickness of the cylinder head is 100-130mm, the structural strength is high, not easy to deform, and the long-term reliability of the compressor is improved.

[0022] Optionally, the air intake structure has a first cavity, and a first air inlet and a second air inlet are opened on the side wall of the first cavity. The first air inlet is connected to the second air inlet, the first air inlet is used to connect to the external environment or the upper-level pipeline, and the second air inlet is used to connect to a designated structure.

[0023] By adopting the above technical solution, the first air inlet is connected to the upper-level pipeline of the external environment, and the second air inlet is connected to the designated structure. The gas in the upper-level pipeline of the external environment enters the second air inlet through the first air inlet, and is transferred from the second air inlet to the designated structure, that is, transferred to the cylinder.

[0024] Optionally, there are multiple second air inlets, a first partition plate is provided on the inner wall of the first cavity, the first partition plate is placed between adjacent second air inlets, and the multiple second air inlets are all connected to the first air inlet.

[0025] By adopting the above technical solution, there are multiple second air inlets, which can ensure sufficient gas flow and make the layout compact. At the same time, the flow surface of the air valve is arranged as much as possible within the projection surface of the cylinder inner diameter to reduce resistance loss. In addition, the first partition plate enhances the overall strength of the intake structure and makes the cylinder head structure firm.

[0026] Optionally, the air outlet structure has a second cavity, and the side wall of the second cavity is provided with a first air outlet and a second air outlet, the first air outlet is connected to the second air outlet, the second air outlet is used to connect to the next-level pipeline, and the first air outlet is used to connect to a designated structure.

[0027] By adopting the above technical solution, the second gas outlet is connected to the next-level pipeline, and the first gas outlet is connected to the designated structure. The gas in the designated structure, that is, the gas in the cylinder, is transferred to the second gas outlet through the first gas outlet, and then transferred to the next-level pipeline, which facilitates the gas transfer process.

[0028] Optionally, there are multiple first air outlets, and a second partition plate is provided on the inner wall of the second cavity, the second partition plate is placed between adjacent first air outlets, and the multiple first air outlets are all connected to the second air outlet.

[0029] By adopting the above technical solution, the design of multiple valve chambers can not only ensure sufficient gas flow, but also make the layout compact, and at the same time arrange the flow surface of the gas valve as much as possible within the projection surface of the cylinder inner diameter to reduce resistance loss. In addition, the second partition can enhance the overall strength of the second cavity and make the cylinder head structure firm.

[0030] Optionally, a plurality of heat sinks are provided on an outer wall of at least one of the air inlet structure and the air outlet structure; and the plurality of heat sinks are evenly distributed on the outer wall of the air inlet structure and / or the air outlet structure.

[0031] By adopting the above technical solution, the heat sink is evenly distributed on the outer wall of the intake structure and / or the outlet structure; the heat sink increases the surface area of ​​the cylinder head so that more heat can be transferred to the surrounding air. The shape and arrangement of the heat sink can guide the air flow to form more effective convection heat dissipation to help take away heat. At the same time, the heat sink can help to evenly disperse the heat, reduce the thermal stress inside the cylinder head, and prevent cracks caused by uneven thermal expansion.

[0032] Optionally, the number of heat sinks is 3-8.

[0033] By adopting the above technical solution, the heat sink can be selected according to different heat dissipation requirements, which can meet the heat dissipation of smaller heat dissipation requirements as well as the heat dissipation of larger heat dissipation requirements.

[0034] The beneficial effects of a cylinder head for a compressor provided by the present invention are:

[0035] 1. The air intake structure and the air outlet structure on the cylinder head are separated, so that the area of ​​direct contact between the cylinder head and the air becomes larger, and the air cooling effect is better;

[0036] 2. There are multiple second air inlets and multiple first air outlets. Such a design can ensure sufficient gas flow and make the layout compact, so that the flow surface of the air valve is arranged as much as possible within the projection surface of the cylinder inner diameter to reduce resistance loss;

[0037] 3. The air intake structure and the air outlet structure are separated, which directly blocks the high temperature of the exhaust chamber from being transmitted to the relatively low temperature air intake chamber. The air intake temperature is not heated, and the exhaust temperature will not rise further. In this way, the air intake volumetric efficiency of the compressor cylinder will not be affected due to the increase in the temperature of the air intake structure, resulting in a decrease in the exhaust volume. It can also play a certain protective role on the important components of the compressor. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 This is a schematic diagram of the main structure of a cylinder head for a compressor according to an embodiment of the present invention;

[0039] Figure 2A cross-sectional view of the main structure of a cylinder head for a compressor according to an embodiment of the present invention;

[0040] Reference numerals:

[0041] 100, air inlet structure; 101, first air inlet; 102, second air inlet; 103, first partition plate; 104, first connecting groove; 200, air outlet structure; 201, first air outlet; 202, second air outlet; 203, second partition plate; 204, second connecting groove; 300, heat insulation part; 400, mounting part; 500, heat sink. DETAILED DESCRIPTION

[0042] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below. 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. Unless otherwise defined, the technical terms or scientific terms used herein should be understood by people with general skills in the field to which the present invention belongs. "Including" and similar words used in this article mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects.

[0043] The specific implementation modes of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0044] Reference Figure 1 and Figure 2 . An embodiment of the present invention provides a cylinder head for a compressor, comprising: an air intake structure 100, an air outlet structure 200 and an insulation part 300. The air intake structure 100 is used for air intake. The gas from the external environment or the upper-level pipeline passes through the air intake structure 100 and enters the designated structure. In this embodiment, the designated structure is the cylinder of the compressor; the air outlet structure 200 is used for exhausting gas. The gas of the designated structure passes through the compressor and enters the lower-level pipeline; the insulation part 300 is placed between the air intake structure 100 and the air outlet structure 200, and separates the air intake structure 100 from the air outlet structure 200, so that the air intake structure 100 and the air outlet structure 200 form two independent parts. The insulation part 300 can be an insulation material arranged between the air intake structure 100 and the air outlet structure 200, or can directly use air insulation. In this embodiment, the air insulation method is adopted; in this embodiment, the insulation part 300 is a separation groove formed by the side walls adjacent to the air intake structure 100 and the air outlet structure 200.

[0045] That is, it can be understood that the air intake structure 100 and the air outlet structure 200 are independently arranged, and the heat insulation part 300 is the gap between the two, so as to achieve the effect of hindering heat transfer; it can also be understood that the heat insulation part 300 is arranged between the cavities of the air intake structure 100 and the air outlet structure 200, and the heat insulation part 300 is a material with good heat insulation effect, so as to achieve the effect of hindering heat transfer; in this embodiment, the air intake structure 100 and the air outlet structure 200 are independently arranged, and a separation groove is formed between the two, so that the high temperature of the air outlet structure 200 will not be directly transferred to the air intake structure 100 through the metal partition, thereby not affecting the compressor cylinder suction volume efficiency.

[0046] Reference Figure 1 and Figure 2 The air intake structure 100 has a first cavity, and a first air intake port 101 and a second air intake port 102 are formed on a side wall of the first cavity. The first air intake port 101 is connected to the second air intake port 102. The axes of the first air intake port 101 and the second air intake port 102 may be parallel to or perpendicular to each other. In this embodiment, the axis of the second air intake port 102 is perpendicular to the axis of the first air intake port 101. At the same time, the second air intake port 102 penetrates the first cavity. An open end of the second air intake port 102 is used to be connected to a designated structure, that is, connected to the cylinder of the compressor, and the other open end is used to set a piston rod. The open end of the first air intake port 101 is used to be connected to the external environment or the upper-level pipeline. At the same time, since the first air intake port 101 is connected to the second air intake port 102, the gas in the external environment or the upper-level pipeline passes through the first air intake port 101 and enters the second air intake port 10 2, and enters into the cylinder of the compressor; at the same time, the number of the first air inlet 101 can be one or more, and the number of the second air inlet 102 can be one or more. In this embodiment, the number of the first air inlet 101 is one, and the number of the second air inlet 102 is multiple; the multiple second air inlets 102 are all connected with the first air inlet 101. In this embodiment, the number of the second air inlet 102 is two, and a first partition plate 103 is provided on the inner wall of the first cavity. The first partition plate 103 is formed by the side walls of adjacent second air inlets 102, so the first partition plate 103 is placed between adjacent second air inlets 102, and a first connecting groove 104 is opened on the first partition plate 103. The first connecting groove 104 is respectively connected to the second air inlet 102 and the first air inlet 101, so that the first air inlet 101 and the second air inlet 102 remain connected.

[0047] Reference Figure 1 and Figure 2The air intake structure 100 has a second cavity, and a second air outlet 202 and a first air outlet 201 are formed on a side wall of the second cavity. The second air outlet 202 is connected to the first air outlet 201. The axes of the second air outlet 202 and the first air outlet 201 can be parallel to each other or perpendicular to each other. In this embodiment, the axis of the first air outlet 201 is perpendicular to the axis of the second air outlet 202. At the same time, the first air outlet 201 penetrates the second cavity. An open end of the first air outlet 201 is used to communicate with a designated structure, that is, connected to the cylinder of the compressor, and the other open end is used to set a piston rod. The open end of the second air outlet 202 is used to communicate with the next-level pipeline. At the same time, since the second air outlet 202 is connected to the first air outlet 201, the gas of the designated structure enters the first air outlet 201 after passing through the second air outlet 202, and enters to the next-level pipeline; at the same time, the number of second air outlets 202 can be one or more, and the number of first air outlets 201 can be one or more. In the present embodiment, the number of second air outlets 202 is one, and the number of first air outlets 201 is multiple; multiple first air outlets 201 are all connected to the second air outlet 202. In the present embodiment, the number of first air outlets 201 is two, and a second partition plate 203 is provided on the inner wall of the second cavity. The second partition plate 203 is formed by the side walls of adjacent first air outlets 201, so the second partition plate 203 is placed between adjacent first air outlets 201, and a second connecting groove 204 is opened on the second partition plate 203. The second connecting groove 204 is respectively connected to the first air outlet 201 and the second air outlet 202, so that the second air outlet 202 remains connected with the first air outlet 201.

[0048] Reference Figure 1 and Figure 2 A plurality of heat sinks 500 are disposed on the outer wall of at least one of the air inlet structure 100 and the air outlet structure 200 , and the plurality of heat sinks 500 are evenly distributed on the outer wall of the air inlet structure 100 and / or the air outlet structure 200 .

[0049] That is, a heat sink 500 may be provided on a single air intake structure 100; or a heat sink 500 may be provided on a single air outlet structure 200; or heat sinks 500 may be provided on both the air intake structure 100 and the air outlet structure 200; in the present embodiment, it is preferred to provide heat sinks 500 on the side walls of both the air intake structure 100 and the air outlet structure 200; at the same time, a plurality of heat sinks 500 may be evenly distributed along the axis direction of the first air outlet 201, or may be evenly distributed along the axis direction of the second air outlet 202, or may be evenly distributed along other directions. In the present embodiment, a plurality of heat sinks 500 are evenly distributed along the axis direction of the first air outlet 201, that is, they are evenly distributed along the thickness direction of the air intake structure 100 and the air outlet structure 200; in the present embodiment, 3-8 heat sinks 500 are used.

[0050] At the same time, in the formation of the heat sink 500, the heat sink 500 can be directly fixed on the outer wall of the air intake structure 100 and the air outlet structure 200, or grooves can be made in the side walls of the air intake structure 100 and the air outlet structure 200, and the side walls between two adjacent grooves form the heat sink 500; in this embodiment, a solution is adopted in which grooves are made in the side walls of the air intake structure 100 and the air outlet structure 200 to form the heat sink 500. This solution effectively reduces the thickness of the side walls of the air intake structure 100 and the air outlet structure 200, which helps the heat dissipation process; good heat dissipation can reduce the extra energy consumption of the equipment due to poor heat dissipation and improve the energy efficiency ratio. At the same time, 3-8 heat sinks 500 can be selected according to different heat dissipation requirements, which can not only meet the heat dissipation of smaller heat dissipation requirements, but also cope with the heat dissipation of larger heat dissipation requirements.

[0051] Reference Figure 1 and Figure 2 The cylinder head further includes a mounting member 400, and the air intake structure 100 and the air outlet structure 200 are both arranged on the mounting member 400. In the present embodiment, the mounting member 400 is in the shape of a plate, and the plate-shaped side wall of the mounting member 400 is fixed to the side wall of the air intake structure 100 and the side wall of the air outlet structure 200, and the end face of the mounting member 400, the end face of the air intake structure 100, and the end face of the air outlet structure 200 are placed on the same plane, and the positions of the air intake structure 100 and the air outlet structure 200 are fixed. The shapes of the two side walls of the mounting member 400 correspond to the shapes of the side walls of the air intake structure 100 and the shapes of the side walls of the air outlet structure 200, respectively; the side walls of the air intake structure 100, the side walls of the air outlet structure 200 and the end face of the mounting member 400 jointly form a separation groove, which can better hinder heat conduction, and the distance between the adjacent side walls of the air intake structure 100 and the air outlet structure 200 is 4-12 mm, that is, the width of the separation groove is 4-12 mm, which can effectively hinder heat conduction, thereby reducing the high temperature area. domain for the low temperature area; it is worth noting that, when the mounting member 400 is not provided, that is, the air intake structure 100 and the air outlet structure 200 are installed and used separately, the heat conduction can also be hindered; at the same time, the thickness of the mounting member 400 is 10-28mm, which can stably fix the air intake structure 100 and the air outlet structure 200. During use, the air intake structure 100 and the air outlet structure 200 can move synchronously, which increases the convenience of cylinder head installation; the distance between the mounting member 400 and the end face opposite to the air intake structure 100 is 100-130mm, that is, the overall thickness of the cylinder head is 100-130mm, and the thicker cylinder head has higher strength and can withstand higher pressure. At the same time, the thicker cylinder head can better resist high temperature and reduce deformation caused by high temperature. In addition, the thicker cylinder head helps to better conduct and disperse the high temperature generated, reduce the temperature gradient on the surface of the cylinder head, and reduce thermal stress.

[0052] The implementation principle of a cylinder head for a compressor in the present application is to design and install the cylinder head in the above-mentioned manner, that is, the air intake structure 100 and the air outlet structure 200 are independently arranged, and there is a separation groove between the two, and the temperature of the exhaust structure will not be transmitted to the air intake structure 100 through the metal isolation plate, so the temperature of the air intake structure 100 is stable; in the prior art, the temperature of the air intake structure 100 increases, and the temperature increase causes the density of the intake air to decrease, which means that under the same volume, the mass of air entering the cylinder is reduced, so that the efficiency of the compressor is reduced; the air intake structure 100 and the air outlet structure 200 in the present solution are separately arranged, which will not affect the volumetric efficiency of the compressor cylinder, and will not accelerate the aging of important components of the compressor, thereby ensuring the service life of important components of the compressor, and heat sinks 500 are arranged on the outer walls of the air intake structure 100 and the air outlet structure 200, and the heat sink 500 dissipates heat, which can further ensure that the air intake structure 100 will not be affected by high temperature.

[0053] Although the embodiments of the present invention are described in detail above, it is obvious to those skilled in the art that various modifications and variations can be made to these embodiments. However, it should be understood that such modifications and variations are within the scope and spirit of the present invention as described in the claims. Moreover, the present invention described herein may have other embodiments and may be implemented or realized in a variety of ways.

Claims

1. A cylinder head for a compressor, characterized in that: include: An air intake structure (100), the air intake structure (100) is used to pass gas so that the gas enters a designated structure; An air outlet structure (200), wherein the air outlet structure (200) is used to pass the gas so that the gas is discharged from a designated structure; A heat insulating portion (300) is disposed between the air intake structure (100) and the air outlet structure (200), and separates the air intake structure (100) from the air outlet structure (200).

2. The cylinder head for a compressor according to claim 1, characterized in that: The heat insulating portion (300) is a separation groove formed by the adjacent side walls of the air inlet structure (100) and the air outlet structure (200).

3. The cylinder head for a compressor according to claim 1, characterized in that: The distance between adjacent side walls of the air inlet structure (100) and the air outlet structure (200) is 4-12 mm.

4. The cylinder head for a compressor according to claim 1, characterized in that: It also includes a mounting member (400), and the air inlet structure (100) and the air outlet structure (200) are both arranged on the mounting member (400).

5. The cylinder head for a compressor according to claim 4, characterized in that: The mounting member (400) is in a plate shape, and the thickness of the mounting member (400) is 10-28 mm.

6. The cylinder head for a compressor according to claim 4, characterized in that: The distance between the end faces of the mounting member (400) and the air intake structure (100) facing away from each other is 100-130 mm.

7. The cylinder head for a compressor according to claim 1, characterized in that: The air intake structure (100) comprises a first cavity, a side wall of which is provided with a first air intake port (101) and a second air intake port (102), the first air intake port (101) being connected to the second air intake port (102), the first air intake port (101) being used to connect to an external environment or an upper-level pipeline, and the second air intake port (102) being used to connect to a designated structure.

8. The cylinder head for a compressor according to claim 7, characterized in that: There are a plurality of second air inlets (102), a first partition plate (103) is provided on the inner wall of the first cavity, the first partition plate (103) is placed between adjacent second air inlets (102), and the plurality of second air inlets (102) are all connected to the first air inlet (101).

9. The cylinder head for a compressor according to claim 1, characterized in that: The air outlet structure (200) has a second cavity, and the side wall of the second cavity is provided with a first air outlet (201) and a second air outlet (202), the first air outlet (201) is connected to the second air outlet (202), the second air outlet (202) is used to connect to the next-level pipeline, and the first air outlet (201) is used to connect to a designated structure.

10. The cylinder head for a compressor according to claim 9, characterized in that: There are a plurality of first air outlets (201), a second partition plate (203) is provided on the inner wall of the second cavity, the second partition plate (203) is placed between adjacent first air outlets (201), and the plurality of first air outlets (201) are all connected to the second air outlet (202).

11. The cylinder head for a compressor according to any one of claims 1 to 10, characterized in that: A plurality of heat sinks (500) are arranged on the outer wall of at least one of the air inlet structure (100) and the air outlet structure (200); the plurality of heat sinks (500) are evenly distributed on the outer wall of the air inlet structure (100) and / or the air outlet structure (200).

12. The cylinder head for a compressor according to claim 11, characterized in that: The number of the heat sinks (500) is 3-8.

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