Disc type cooling membrane head structure and high-speed membrane compressor

Abstract

The utility model discloses a disc type cooling film head structure and a high-speed diaphragm compressor, and relates to the technical field of diaphragm compressors, the disc type cooling film head structure comprises a cylinder cover, an air disc, an oil distribution disc and a cylinder body which are stacked, the air disc is provided with an air inlet channel and an air outlet channel, and the side wall, in press contact with the air disc, of the cylinder cover is provided with a plurality of first grooves; a first water channel is defined between the first groove and the side wall of the air disc, the first groove is arranged on the cylinder cover in a snakelike mode and surrounds the periphery of the air inlet channel and the periphery of the exhaust channel, at least two second water channels penetrating in the radial direction of the air disc are arranged in the air disc, a cylinder sleeve is arranged on the side, away from the cylinder cover, of the cylinder body, and the periphery of the cylinder sleeve is sleeved with a cooling block. The cooling block is internally provided with a third water channel, the first water channel, the second water channel and the third water channel are all filled with cooling liquid circularly circulating with the outside, the cylinder cover, the air disc and the cylinder body are cooled through the first water channel, the second water channel and the third water channel for circulating the cooling liquid, heat of corresponding parts can be effectively taken away, and the cooling efficiency is improved. Therefore, the compression amount and the inflation efficiency of the gas are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of diaphragm compressors, in particular to a disc-shaped cooling membrane head structure and a high-speed diaphragm compressor. Background Art

[0002] A diaphragm compressor is a positive displacement compressor that uses a diaphragm to separate the oil side and the gas side. The motor drives the crankshaft and connecting rod, which drives the piston to move back and forth to increase and reduce the pressure of the high-pressure oil. The high-pressure oil then pushes the diaphragm to compress and discharge the gas.

[0003] The volume of a diaphragm compressor is determined by the volume of the diaphragm cavity on both sides of the diaphragm. In order to improve the inflation efficiency, diaphragm compressors are currently developing in the direction of high speed. However, high-speed compressors will generate a lot of heat. The intake temperature directly affects the volumetric efficiency, exhaust temperature and actual exhaust volume of the diaphragm compressor. Therefore, the diaphragm compressors currently on the market are equipped with cooling water channels on the cylinder head to achieve cooling. However, the cooling effect is limited and the temperature around the gas side wall of the diaphragm cavity and the exhaust cavity cannot be effectively reduced. Utility Model Content

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a disc-shaped cooling membrane head structure and a high-speed diaphragm compressor, which can improve the cooling effect and thus improve the inflation efficiency.

[0005] According to the first embodiment of the present invention, a disc-shaped cooling film head structure includes:

[0006] The cylinder head, gas plate, oil distribution plate and cylinder body are stacked, and the gas plate is provided with an intake duct and an exhaust duct;

[0007] A plurality of first grooves are provided on the side wall of the cylinder head that contacts the gas disc. A first water channel is defined between the first groove and the side wall of the gas disc. The first grooves are arranged in a serpentine shape on the cylinder head and surround the outer periphery of the intake and exhaust channels.

[0008] At least two second water channels are provided in the gas disc, and the second water channels penetrate along the radial direction of the gas disc;

[0009] A cylinder liner is provided on the side of the cylinder body away from the cylinder head, a cooling block is provided on the outer periphery of the cylinder liner, a third water channel is provided in the cooling block, and the first water channel, the second water channel and the third water channel are all filled with coolant that circulates with the outside world.

[0010] According to a disc-type cooling membrane head structure of an embodiment of the first aspect of the utility model, there is at least the following beneficial effects: this embodiment includes a stacked cylinder head, an air disc, an oil distribution disc and a cylinder body, the air disc is provided with an intake duct and an exhaust duct, and a plurality of first grooves are provided on the side wall of the cylinder head that is in pressure contact with the air disc, a first water channel is defined between the first groove and the side wall of the air disc, the first groove is arranged in a serpentine shape on the cylinder head, and the first groove is wrapped around the outer periphery of the intake duct and the exhaust duct, at least two second water channels are provided in the air disc, the second water channel passes through in the radial direction of the air disc, a cylinder liner is provided on the side of the cylinder body away from the cylinder head, a cooling block is provided on the outer periphery of the cylinder liner, a third water channel is provided in the cooling block, the first water channel, the second water channel and the third water channel are all filled with coolant that circulates with the outside world, and by providing the first water channel, the second water channel and the third water channel for circulating the coolant, the cylinder head, the air disc and the cylinder body are cooled respectively, which can effectively bring heat into the exhaust part and the hydraulic oil, achieve effective cooling, and thus improve the compression volume and charging efficiency of the gas.

[0011] According to an embodiment of the first aspect of the present utility model, along the circumference of the cylinder head, the first groove includes a plurality of sectors, and the first grooves arranged in a serpentine shape are provided in the sectors.

[0012] According to an embodiment of the first aspect of the present invention, the first groove located in the sector is provided with at least a first connecting pipe and a second connecting pipe for connecting the coolant, the first connecting pipe extends along the radial direction of the cylinder head, and the second connecting pipe extends along the axial direction of the cylinder head.

[0013] According to an embodiment of the first aspect of the present invention, a second bypass channel connected to the second water channel is provided in the gas disc, and at least one end of the second bypass channel passes through the radial outer wall of the gas disc.

[0014] According to an embodiment of the first aspect of the present invention, one end of the cooling block abuts against the cylinder body, and an opening connected to the third water channel is provided on the cooling block, and the opening enables the coolant in the third water channel to contact the side wall of the cylinder body.

[0015] According to an embodiment of the first aspect of the present utility model, a second groove is provided on the side wall of the cylinder body that abuts against the cooling block, and the second groove is connected to the opening of the third water channel.

[0016] According to an embodiment of the first aspect of the present invention, the air disc is provided with an intake column and an exhaust column, the intake duct is located in the intake column, the exhaust duct is located in the exhaust column, and the intake column and the exhaust column are plugged into and pass through the cylinder head.

[0017] According to an embodiment of the first aspect of the present utility model, the cylinder head is provided with a first hole for inserting the intake column and a second hole for inserting the exhaust column, and the first water channel is located at the periphery of the first hole and the second hole.

[0018] According to an embodiment of the first aspect of the present utility model, the first water channel, the second water channel and the third water channel are not connected to each other.

[0019] According to an embodiment of the second aspect of the present invention, a high-speed diaphragm compressor is provided, comprising the above-mentioned disc-shaped cooling membrane head structure.

[0020] A high-speed diaphragm compressor according to the second embodiment of the present invention has at least the following beneficial effects:

[0021] Compared with the existing technology, a disc-type cooling membrane head structure and a high-speed diaphragm compressor are respectively provided with a first water channel, a second water channel and a third water channel for connecting the coolant on the cylinder head, the air disc and the cylinder body. The first water channel is serpentinely arranged on the cylinder head and located on the periphery of the intake and exhaust channels of the air disc, effectively reducing the temperature of the intake and exhaust areas and the hydraulic oil, thereby increasing the compression amount of the gas and thus improving the charging efficiency of the compressor.

[0022] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0024] Figure 1 This is an exploded view of a disc-shaped cooling film head structure in an embodiment of the first aspect of the present utility model;

[0025] Figure 2 A cross-sectional view of a disc-shaped cooling film head structure in an embodiment of the first aspect of the present utility model;

[0026] Figure 3 for Figure 2 A magnified view of center A;

[0027] Figure 4 for Figure 2 Magnified view of middle B;

[0028] Figure 5 A bottom view of a cylinder head in an embodiment of the first aspect of the present invention;

[0029] Figure 6 A cross-sectional view of a cylinder head in an embodiment of the first aspect of the present utility model;

[0030] Figure 7 A cross-sectional view of the gas disk in the embodiment of the first aspect of the present utility model;

[0031] Figure 8 This is a bottom view of the cylinder body in the embodiment of the first aspect of the present utility model.

[0032] Reference numerals:

[0033] Cylinder head 100; first groove 101; first water channel 102; sector 103; first connecting pipe 104; second connecting pipe 105; first hole 106; second hole 107;

[0034] Gas disc 110; air intake column 111; air intake passage 1111; exhaust column 112; exhaust passage 1121; second water channel 113; second bypass channel 114; communication hole 115;

[0035] Oil distribution plate 120; diaphragm 121; second groove 122;

[0036] Cylinder body 130 ; cylinder liner 131 ; cooling block 132 ; third water channel 133 ; opening 134 . DETAILED DESCRIPTION

[0037] The following describes in detail embodiments of the present invention. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0038] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0039] In the description of this utility model, "several" means one or more, "many" means more than two, "greater than," "less than," and "exceed" are understood to exclude the number itself, while "above," "below," and "within" are understood to include the number itself. The use of "first" and "second" in the description is solely for the purpose of distinguishing technical features and is not to be construed as indicating or implying relative importance, implicitly specifying the number of the indicated technical features, or implicitly specifying the order of the indicated technical features.

[0040] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0041] A diaphragm compressor is a positive displacement compressor that uses a diaphragm to separate the oil side and the gas side. The motor drives the crankshaft and connecting rod, which drives the piston to perform reciprocating motion to increase and reduce the pressure of the high-pressure oil. The high-pressure oil then pushes the diaphragm to compress and discharge the gas. The volume of the diaphragm compressor is determined by the volume of the diaphragm cavity on both sides of the diaphragm. Currently, in order to improve the inflation efficiency, diaphragm compressors are constantly developing in the direction of high speed. However, high-speed compressors will generate a lot of heat, and the intake temperature directly affects the volumetric efficiency, exhaust temperature and actual exhaust volume of the diaphragm compressor. Therefore, the diaphragm compressors currently on the market are equipped with cooling water channels on the cylinder head to achieve cooling. However, the cooling effect is limited and the temperature around the gas side wall of the diaphragm cavity and the exhaust cavity cannot be effectively reduced.

[0042] To solve the above problems, refer to Figure 1 and Figure 2 In an embodiment of the present invention, a disc-type cooling film head structure includes a stacked cylinder head 100, an air disc 110, an oil distribution disc 120 and a cylinder block 130. The air disc 110 is provided with an intake duct 1111 and an exhaust duct 1121. The intake duct 1111 and the exhaust duct 1121 pass through the cylinder head 100. A plurality of first grooves 101 are provided on the side wall of the cylinder head 100 that is in pressure contact with the air disc 110. A first water channel 102 is defined between the first groove 101 and the side wall of the air disc 110. The first grooves 101 are arranged in a serpentine shape on the cylinder head 100 to form a serpentine-arranged first water channel 102, and the first grooves 101 are wrapped around the outer periphery of the intake duct 1111 and the exhaust duct 1121. At least two second water channels 113 are provided in the gas disk 110. The second water channel 113 runs through the gas disk 110 in the radial direction. A cylinder sleeve 131 is provided on the side of the cylinder body 130 away from the cylinder head 100. The cylinder sleeve 131 is used to connect the hydraulic oil. A cooling block 132 is provided on the outer periphery of the cylinder sleeve 131. A third water channel 133 is provided in the cooling block 132. The first water channel 102, the second water channel 113 and the third water channel 133 are all filled with coolant circulating with the outside world. In addition, the first water channel 102, the second water channel 113 and the third water channel 133 are all filled with coolant circulating with the outside world. The three water channels 133 are independently filled with circulating coolant and are not connected to each other. It can be understood that since heat is mainly concentrated on the gas plate 110, the oil distribution plate 120 and the cylinder body 130 when the compressor is working, the first water channel 102, the second water channel 113 and the third water channel 133 through which coolant circulates are provided to cool the cylinder head 100, the gas plate 110 and the cylinder body 130 respectively, which can effectively bring heat into the exhaust part and the hydraulic oil, achieve effective cooling, and thus improve the compression volume and charging efficiency of the gas.

[0043] Reference Figure 2 and Figure 3It can be understood that a chamber is provided between the gas disc 110 and the oil distribution disc 120, and a diaphragm 121 is provided on the oil distribution disc 120. The diaphragm 121 divides the chamber into a gas side close to the gas disc 110 and an oil side close to the oil distribution disc 120. During operation, the hydraulic oil pushes the diaphragm 121 to vibrate, causing the air flow on the gas side to fluctuate, thereby achieving air extraction from the outside through the intake duct 1111 and air charging into the equipment through the exhaust duct 1121. The intake duct 1111 and the exhaust duct 1121 are connected to the gas side. The gas disc 110 is provided with an intake column 111 and an exhaust column 112. The intake duct 1111 is located in the intake column 111, and the exhaust duct 1121 is located in the exhaust column 112. The intake column 111 and the exhaust column 112 are plugged into and pass through the cylinder head 100. Accordingly, referring to Figure 5 The cylinder head 100 is provided with a first hole 106 for inserting the intake column 111 and a second hole 107 for inserting the exhaust column 112. The first water channel 102 is located on the periphery of the first hole 106 and the second hole 107. It can be understood that along the circumference of the cylinder head 100, the first groove 101 includes a plurality of sectors 103, and the sectors 103 are provided with the first grooves 101 arranged in a serpentine shape. In this embodiment, at least four sectors 103 are provided, which helps to fully utilize the surface of the cylinder head 100, increase the contact area between the coolant and the cylinder head 100 and the gas plate 110, and thus improve the cooling effect. At the same time, referring to Figure 6 The first groove 101 within sector 103 is provided with at least one first communicating pipe 104 and a second communicating pipe 105 for communicating coolant. The first communicating pipe 104 extends in the radial direction of the cylinder head 100, and the second communicating pipe 105 extends in the axial direction of the cylinder head 100. It is understood that the first communicating pipe 104 is connected to the end of the first groove 101 close to the outer circumference of the cylinder head 100, and the second communicating pipe 105 is connected to the other end of the first groove 101. During operation, coolant enters the first water channel 102 from the first communicating pipe 104 and leaves the first water channel 102 from the second communicating pipe 105, or vice versa, coolant enters the first water channel 102 from the second communicating pipe 105 and leaves the first water channel 102 from the first communicating pipe 104, thereby reducing the temperatures of the cylinder head 100 and the gas plate 110, thereby reducing the temperatures of the intake passage 1111 and the exhaust passage 1121, and improving charging efficiency.

[0044] Reference Figure 7The two second water channels 113 within the air disk 110 are located on either side of the intake channel 1111 and the exhaust channel 1121. It will be appreciated that in this embodiment, two intake channels 1111 are provided, and the exhaust channel 1121 is located between the two intake channels 1111. In other embodiments, the exhaust channel 1121 is located at the axial center of the air disk 110, and the intake channel 1111 is located to one side of the exhaust channel 1121. Furthermore, the air disk 110 is provided with second bypass channels 114 connected to the second water channels 113. Each second water channel 113 is connected to at least one second bypass channel 114. At least one end of the second bypass channel 114 passes through the radially outer wall of the air disk 110, and the other end is connected to the second water channel 113. It can be understood that a plurality of connecting holes 115 are provided on the radial outer wall of the gas disk 110, and at least one end of the second water channel 113 and the second bypass channel 114 has a connecting hole 115. Cooling water can enter the gas disk 110 from the connecting hole 115 of the second water channel 113 and be discharged from the gas disk 110 from the connecting hole 115 of the second bypass channel 114, or, cooling water can enter the gas disk 110 from the connecting hole 115 of the second bypass channel 114 and be discharged from the gas disk 110 from the connecting hole 115 of the second water channel 113, thereby cooling the gas disk 110.

[0045] Reference Figure 1 One end of the cooling block 132 abuts against the cylinder body 130. The third water channel 133 in the cooling block 132 is arranged in an annular shape. The cooling block 132 is provided with an opening 134 that communicates with the third water channel 133. The opening 134 enables the coolant in the third water channel 133 to contact the side wall of the cylinder body 130, so that the coolant can circulate and take away the heat of the cylinder body 130, thereby reducing the temperature of the hydraulic oil. Figure 4 The side wall of the cylinder body 130 that contacts the cooling block 132 is provided with a second groove 122, and the second groove 122 is connected to the opening 134 of the third water channel 133. Figure 8 The second grooves 122 are provided with a plurality of second grooves 122 arranged in a ring shape, and the trajectory center of the second groove 122 is located on the axis of the cylinder body 130, which helps to increase the contact area between the cylinder body 130 and the coolant in the third water channel 133, thereby improving the heat exchange efficiency and achieving an improved cooling effect.

[0046] According to an embodiment of the second aspect of the present utility model, a high-speed diaphragm compressor is provided, including the above-mentioned disc-type cooling membrane head structure. It can be understood that since the high-speed diaphragm compressor includes all the technical features of a disc-type cooling membrane head structure, the high-speed diaphragm compressor also has all the beneficial effects of the disc-type cooling membrane head structure in the above content.

[0047] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A disc-type cooling film head structure, characterized in that: include: The cylinder head, gas plate, oil distribution plate and cylinder body are stacked, and the gas plate is provided with an intake duct and an exhaust duct; A plurality of first grooves are provided on the side wall of the cylinder head that contacts the gas plate, wherein a first water channel is defined between the first groove and the side wall of the gas plate. The first grooves are arranged in a serpentine shape on the cylinder head and surround the outer periphery of the intake channel and the exhaust channel. At least two second water channels are provided in the gas disk, and the second water channels penetrate the gas disk in a radial direction; A cylinder liner is provided on the side of the cylinder body away from the cylinder head, a cooling block is provided on the outer periphery of the cylinder liner, a third water channel is provided in the cooling block, and the first water channel, the second water channel and the third water channel are all filled with coolant that circulates with the outside world.

2. A disc-shaped cooling film head structure according to claim 1, characterized in that: Along the circumference of the cylinder head, the first groove includes a plurality of sectors, and the first grooves are arranged in a serpentine shape in the sectors.

3. A disc-shaped cooling film head structure according to claim 2, characterized in that: The first groove located in the sector is provided with at least a first communicating pipe and a second communicating pipe for communicating with the coolant, the first communicating pipe extends along the radial direction of the cylinder head, and the second communicating pipe extends along the axial direction of the cylinder head.

4. The disc-shaped cooling film head structure according to claim 1, characterized in that: A second bypass channel connected to the second water channel is provided in the gas disk, and at least one end of the second bypass channel passes through the radial outer side wall of the gas disk.

5. The disc-shaped cooling film head structure according to claim 1, characterized in that: One end of the cooling block is in contact with the cylinder body. The cooling block is provided with an opening communicating with the third water channel. The opening enables the coolant in the third water channel to contact the side wall of the cylinder body.

6. The disc-shaped cooling film head structure according to claim 5, characterized in that: A second groove is provided on the side wall of the cylinder body that abuts against the cooling block, and the second groove is connected to the opening of the third water channel.

7. The disc-shaped cooling film head structure according to claim 6, characterized in that: The gas disc is provided with an intake column and an exhaust column. The intake passage is located in the intake column, the exhaust passage is located in the exhaust column, and the intake column and the exhaust column are plugged into and pass through the cylinder head.

8. The disc-shaped cooling film head structure according to claim 7, characterized in that: The cylinder head is provided with a first hole for inserting the intake column and a second hole for inserting the exhaust column, and the first water channel is located at the periphery of the first hole and the second hole.

9. The disc-shaped cooling film head structure according to claim 1, characterized in that: The first water channel, the second water channel and the third water channel are not connected to each other.

10. High-speed diaphragm compressor, characterized in that The invention comprises a disc-shaped cooling film head structure according to any one of claims 1 to 9.

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