Carbon dioxide compressor cylinder cover with protection function
By designing loading and unloading grooves and reinforcement rib structures on the cylinder head of the carbon dioxide compressor and combining with the cooling waterway system, the problems of stress concentration and poor cooling of the cylinder head are solved, and high strength and efficient cooling of the cylinder head are achieved, which improves the stability and production efficiency of the equipment.
Patent Information
- Application Number
- CN202422288979.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-19
- Publication Date
- 2025-08-29
- Estimated Expiration
- 2034-09-19
AI Technical Summary
The existing carbon dioxide compressor cylinder head structure has a stress concentration area, which is prone to cracks and fatigue damage, and has poor cooling effect, resulting in an increase in thermal stress of the material and affecting the stability and efficiency of the equipment.
The loading and unloading groove and reinforcement rib structure are designed, and the loading and unloading grooves are equipped with connecting holes and transitional corners distributed in the circumferential array to reduce stress concentration; at the same time, a cooling water channel system is set up to achieve the circulating flow of coolant and reduce the cylinder head temperature.
Effectively disperse stress concentration, improve the overall strength and durability of the cylinder head, reduce the risk of cracks and fatigue damage, improve cooling efficiency, reduce equipment downtime, and improve operating efficiency.
Smart Images
Figure CN223282192U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of carbon dioxide compressors, in particular to a carbon dioxide compressor cylinder cover with a protective function. Background Art
[0002] A carbon dioxide compressor is a compressor specially used to pressurize and transport carbon dioxide gas. The carbon dioxide compressor cylinder is an important component of the carbon dioxide compressor, which is directly related to the performance and efficiency of the compressor. The carbon dioxide compressor cylinder is mainly composed of three parts: cylinder base, cylinder body and cylinder head.
[0003] The cylinder head structure on the existing carbon dioxide compressor cylinder has stress concentration areas, which are prone to cracks and fatigue damage under the action of alternating loads. The bolt holes in the cylinder head are prone to stress concentration due to their discontinuous structure. In addition, the cylinder head has poor cooling effect and cannot effectively dissipate heat in high temperature and high pressure environments, causing increased thermal stress in the material and accelerating damage to the cylinder block and cylinder head. Utility Model Content
[0004] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:
[0005] A carbon dioxide compressor cylinder head with a protective function comprises: a cylinder head body; a plurality of bolts arranged on the cylinder head body, the bolts being used to fix the cylinder head body to the carbon dioxide compressor cylinder; a loading and unloading groove integrally formed on the cylinder head body, the plurality of bolts being arranged in the loading and unloading groove, the loading and unloading groove being used to provide a continuous installation environment for the bolts; the loading and unloading groove comprises a plurality of connecting holes, the plurality of connecting holes being opened on the inner wall of the loading and unloading groove and distributed in a circular array, the bolts passing through the connecting holes, the opening edge of the connecting hole being formed with a second transition fillet, the second transition fillet being used to reduce stress concentration caused by structural discontinuity.
[0006] Both side walls of the loading and unloading groove are formed with a first transition fillet, and the first transition fillet is used to reduce the stress concentration area.
[0007] It also includes: two reinforcing ribs connected in the loading and unloading groove, and the reinforcing ribs are used to enhance the rigidity and stability of the cylinder head body and reduce stress concentration.
[0008] The projection shapes of the two reinforcing ribs are both circular ring-shaped, the projection shape of the loading and unloading groove is circular ring-shaped, and the two reinforcing ribs are respectively connected to the inner ring wall and the outer ring wall of the loading and unloading groove.
[0009] It also includes: a cylinder body, which is installed on one side of the cylinder head body, and the cylinder head body is connected to the cylinder body through bolts.
[0010] The cylinder head body includes: an inlet pipe installed on the cylinder head body for delivering coolant into the cylinder head body; an outlet pipe installed on the cylinder head body for discharging the coolant in the cylinder head body; two first cooling water channels opened on the cylinder head body, the inlet pipe and the outlet pipe are respectively connected to the two first cooling water channels, and the first cooling water channels are used to transport coolant; two second cooling water channels are formed in the cylinder head body, and the two ends of the second cooling water channels are respectively connected to the two first cooling water channels to form a closed coolant circulation path, and the second cooling water channels are used to transport coolant.
[0011] The cross-section of the second cooling water channel is annular.
[0012] The utility model provides a carbon dioxide compressor cylinder cover with protective function. Compared with the existing technology, it has the following beneficial effects:
[0013] 1. By designing the first and second transition fillets on the two side walls of the loading and unloading groove and the opening edge of the connection hole, the stress concentration caused by structural discontinuity is effectively dispersed, reducing the risk of cracks and fatigue damage in the cylinder head body under alternating loads. The two reinforcing ribs enhance the rigidity and stability of the cylinder head body, reduce stress concentration, and improve the overall strength and durability of the cylinder head body.
[0014] 2. The cooling system, consisting of a liquid inlet pipe, a liquid outlet pipe, a first cooling water channel, and a second cooling water channel, realizes the circulation of coolant inside the cylinder head body, effectively reduces the operating temperature of the cylinder head body, prevents the increase of material thermal stress and performance degradation caused by high temperature, helps to reduce the compressor downtime caused by damage to the cylinder head body, and improves the operating efficiency and production benefits of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 This is a schematic diagram of the three-dimensional structure proposed by the utility model.
[0016] Figure 2 This is a schematic diagram of the three-dimensional structure from another perspective proposed by the utility model.
[0017] Figure 3 This is a schematic diagram of the cross-sectional structure of the cylinder head body proposed in the present utility model.
[0018] Figure 4 This is a structural schematic diagram of the cylinder head body, liquid inlet pipe and liquid outlet pipe proposed in the utility model.
[0019] Figure 5 This is a schematic diagram of the cross-sectional structure of the first cooling water channel and the second cooling water channel proposed in the present invention.
[0020] The reference numerals in the figures are:
[0021] 1. Cylinder body;
[0022] 2. Cylinder head body; 201. Liquid inlet pipe; 202. Liquid outlet pipe; 203. First cooling water channel; 204. Second cooling water channel;
[0023] 3. Loading and unloading groove; 301. Connecting hole; 302. First transition fillet; 303. Second transition fillet;
[0024] 4. Bolts;
[0025] 5. Strengthen the ribs. DETAILED DESCRIPTION
[0026] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only 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 making any creative efforts are within the scope of protection of the present invention.
[0027] Reference Figure 1-Figure 5 , a carbon dioxide compressor cylinder head with a protective function, comprising: a cylinder head body 2. The cylinder head body 2, as a key component of the compressor cylinder, not only carries the sealing and fixing functions, but also optimizes the stability and durability of the overall structure through its design, and its design fully considers thermal management and stress distribution; a plurality of bolts 4, which are arranged on the cylinder head body 2, and the bolts 4 are used to fix the cylinder head body 2 on the carbon dioxide compressor cylinder; a loading and unloading groove 3, which is integrally formed on the cylinder head body 2, and a plurality of bolts 4 are arranged in the loading and unloading groove 3. The loading and unloading groove 3 is used to provide a continuous installation environment for the bolts 4. The setting of the bolts 4 ensures a firm connection between the cylinder head body 2 and the compressor cylinder body 1, and the loading and unloading groove 3 provides a continuous and stable installation environment for the bolts 4, and the bolts 4 are installed in the loading and unloading groove 3, which can improve the flatness of one side of the cylinder head body 2 The design of the second transition fillet 303 of the connecting hole 301 and the opening edge of the loading and unloading groove 3 effectively reduces the stress concentration caused by structural discontinuity, extends the service life of the cylinder head body 2 and the bolt 4, and reduces maintenance costs; the loading and unloading groove 3 includes a plurality of connecting holes 301, and the plurality of connecting holes 301 are all opened on the inner wall of the loading and unloading groove 3 and distributed in a circular array. The bolt 4 passes through the connecting hole 301, and the opening edge of the connecting hole 301 is formed with a second transition fillet 303. The second transition fillet 303 is used to reduce the stress concentration caused by structural discontinuity. The design of the first transition fillet 302 on both side walls of the loading and unloading groove 3 further enhances the fatigue resistance of the cylinder head body 2. These fillets can disperse and relieve stress, prevent cracks or fractures in high-pressure and high-temperature environments, and improve the overall reliability and safety of the compressor cylinder.
[0028] Reference Figure 3 Both side walls of the loading and unloading groove 3 are formed with a first transition fillet 302, and the first transition fillet 302 is used to reduce the stress concentration area.
[0029] Reference Figure 3 and Figure 4 , two reinforcing ribs 5 are connected in the loading and unloading groove 3, and the reinforcing ribs 5 are used to strengthen the rigidity and stability of the cylinder head body 2 and reduce stress concentration; the projection shape of the two reinforcing ribs 5 is circular, and the projection shape of the loading and unloading groove 3 is circular. The two reinforcing ribs 5 are respectively connected to the inner ring wall and the outer ring wall of the loading and unloading groove 3, and the two circular reinforcing ribs 5 are respectively connected to the inner ring wall and the outer ring wall of the loading and unloading groove 3, which significantly enhances the rigidity and stability of the cylinder head body 2, not only improves the ability of the cylinder head body 2 to resist external impact and vibration, but also further reduces the stress concentration phenomenon, ensuring the stable operation of the compressor cylinder under harsh working conditions.
[0030] Reference Figure 2 and Figure 5 , cylinder body 1, mounted on one side of cylinder head body 2, cylinder head body 2 is connected to cylinder body 1 by bolts 4; cylinder head body 2 comprises: a liquid inlet pipe 201, mounted on cylinder head body 2, for delivering coolant into cylinder head body 2; a liquid outlet pipe 202, mounted on cylinder head body 2, for discharging coolant in cylinder head body 2; two first cooling water channels 203, opened on cylinder head body 2, the liquid inlet pipe 201 and the liquid outlet pipe 202 are respectively communicated with the two first cooling water channels 203, the first cooling water channels 203 are used to transport coolant; two second cooling water channels 204, formed in cylinder head body 2, the two ends of the second cooling water channel 204 are respectively communicated with the two first cooling water channels 203, forming a closed coolant circulation path, the second cooling water channel 204 is used to transport coolant; the cross-sectional shape of the second cooling water channel 204 is circular, the liquid inlet pipe 201 and the liquid outlet pipe 2 The setting of 02 realizes the circulation of coolant inside the cylinder head body 2. By injecting coolant into the cylinder head body 2 and discharging the hot coolant, the working temperature of the cylinder head body 2 is effectively reduced, and the increase of material thermal stress and performance degradation caused by high temperature are prevented. The two first cooling water channels 203 and the two second cooling water channels 204 together constitute the cooling system of the cylinder head body 2. The first cooling water channel 203 is located on the surface of the cylinder head body 2, which is convenient for connection with the liquid inlet pipe 201 and the liquid outlet pipe 202; the second cooling water channel 204 is located inside the cylinder head body 2, and forms a closed coolant circulation path with the first cooling water channel 203, which not only improves the cooling efficiency, but also ensures uniform cooling of various areas inside the cylinder head body 2. The circular cross-section design of the second cooling water channel 204 further enhances the cooling effect, so that the coolant can fully contact and take away the heat inside the cylinder head body 2.
[0031] During use, the bolts 4 are passed through the connecting holes 301 in the loading and unloading groove 3 one by one and preliminarily fixed on the cylinder head body 2. The design of the loading and unloading groove 3 ensures the continuity and stability of the installation of the bolts 4. At the same time, the second transition fillet 303 of the opening edge of the connecting hole 301 reduces stress concentration. The two annular reinforcement ribs 5 are respectively connected to the inner ring wall and the outer ring wall of the loading and unloading groove 3 to enhance the rigidity and stability of the cylinder head body 2. The cylinder head body 2 is firmly fixed to the cylinder block 1 with the bolts 4 to ensure the stability of the overall structure of the compressor cylinder. The liquid inlet pipe 201 and the liquid outlet pipe 202 are installed on the cylinder head body 2, and ensure that they are properly connected to the two first cooling water channels 203 respectively. Check whether the second cooling water channel 204 has been correctly formed inside the cylinder head body 2 and forms a closed coolant circulation path with the first cooling water channel 203. Diameter, after confirming that all components have been correctly installed and connected, the carbon dioxide compressor is started, and the compressor begins to work to compress the carbon dioxide. During this process, the cylinder head body 2 and the cylinder body 1 are jointly subjected to a high-pressure and high-temperature environment. The first transition fillet 302 on the two side walls of the loading and unloading groove 3 and the second transition fillet 303 on the opening edge of the connecting hole 301 effectively disperse and relieve stress, preventing the cylinder head body 2 from cracking or breaking under high pressure and high temperature, thereby improving the reliability and safety of the overall structure. The coolant in the original cooling system on the carbon dioxide compressor enters the first cooling water channel 203 in the cylinder head body 2 through the liquid inlet pipe 201, and then flows into the second cooling water channel 204, forming a closed circulation path. The coolant fully contacts and takes away the heat inside the cylinder head body 2 during the flow process, and is finally discharged through the liquid outlet pipe 202.
[0032] In summary, compared with the existing technology, it has the following beneficial effects:
[0033] By designing the first transition radius 302 and the second transition radius 303 on the two side walls of the loading and unloading groove 3 and the opening edge of the connecting hole 301, the stress concentration caused by structural discontinuity is effectively dispersed, and the risk of cracks and fatigue damage to the cylinder head body 2 under alternating loads is reduced. The two reinforcing ribs 5 enhance the rigidity and stability of the cylinder head body 2, reduce stress concentration, and improve the overall strength and durability of the cylinder head body 2.
[0034] The cooling structure composed of the liquid inlet pipe 201, the liquid outlet pipe 202, the first cooling water channel 203 and the second cooling water channel 204 realizes the circulation of the coolant inside the cylinder head body 2, effectively reduces the operating temperature of the cylinder head body 2, prevents the increase of thermal stress and performance degradation of the material caused by high temperature, helps to reduce the compressor downtime caused by damage to the cylinder head body 2, and improves the operating efficiency and production benefits of the equipment.
[0035] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.
[0036] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments can still be modified, or some of the technical features thereof can be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.
Claims
1. A carbon dioxide compressor cylinder head with protective function, characterized in that: include: Cylinder head body (2); A plurality of bolts (4) are provided on the cylinder head body (2), and the bolts (4) are used to fix the cylinder head body (2) to the carbon dioxide compressor cylinder; A loading and unloading groove (3) is integrally formed on the cylinder head body (2), and a plurality of bolts (4) are arranged in the loading and unloading groove (3). The loading and unloading groove (3) is used to provide a continuous installation environment for the bolts (4); The loading and unloading groove (3) comprises a plurality of connection holes (301), which are all provided on the inner wall of the loading and unloading groove (3) and distributed in a circular array. The bolts (4) pass through the connection holes (301), and the opening edges of the connection holes (301) are formed with second transition fillets (303). The second transition fillets (303) are used to reduce stress concentration caused by structural discontinuity.
2. The carbon dioxide compressor cylinder head with protective function according to claim 1, characterized in that: Both side walls of the loading and unloading groove (3) are formed with first transition fillets (302), and the first transition fillets (302) are used to reduce stress concentration areas.
3. The carbon dioxide compressor cylinder head with protective function according to claim 1, characterized in that: Also includes: Two reinforcing ribs (5) are connected in the loading and unloading groove (3), and the reinforcing ribs (5) are used to strengthen the rigidity and stability of the cylinder head body (2) and reduce stress concentration.
4. The carbon dioxide compressor cylinder head with protective function according to claim 3, characterized in that: The projection shapes of the two reinforcing ribs (5) are both circular, the projection shape of the loading and unloading groove (3) is circular, and the two reinforcing ribs (5) are respectively connected to the inner ring wall and the outer ring wall of the loading and unloading groove (3).
5. The carbon dioxide compressor cylinder head with protective function according to claim 1, characterized in that: Also includes: The cylinder body (1) is mounted on one side of the cylinder head body (2), and the cylinder head body (2) is connected to the cylinder body (1) via bolts (4).
6. The carbon dioxide compressor cylinder head with protective function according to claim 1, characterized in that: The cylinder head body (2) comprises: A liquid inlet pipe (201) is mounted on the cylinder head body (2) and is used to deliver coolant into the cylinder head body (2); A liquid outlet pipe (202) is installed on the cylinder head body (2) and is used to discharge the coolant in the cylinder head body (2).
7. The carbon dioxide compressor cylinder head with protective function according to claim 6, characterized in that: The cylinder head body (2) further comprises: Two first cooling water channels (203) are provided on the cylinder head body (2); the liquid inlet pipe (201) and the liquid outlet pipe (202) are respectively connected to the two first cooling water channels (203); the first cooling water channels (203) are used to transport cooling liquid; Two second cooling water channels (204) are formed in the cylinder head body (2), and both ends of the second cooling water channels (204) are respectively connected to the two first cooling water channels (203) to form a closed coolant circulation path. The second cooling water channels (204) are used to transport coolant.
8. The carbon dioxide compressor cylinder head with protective function according to claim 7, characterized in that: The cross-section of the second cooling water channel (204) is in the shape of a circular ring.