Compressor for decarburization

Abstract

The utility model relates to the technical field of compressors, in particular to a compressor for decarburization, which comprises a compression main machine, one end of the compression main machine is provided with an air inlet, the other end of the compression main machine is provided with an air supply port, and the air inlet is sequentially provided with an air inlet filtering mechanism and a screw main machine along the conveying direction of air. The screw main machine is connected with an oil circulation mechanism and an oil-gas separation mechanism, one end, far away from the screw main machine, of the oil circulation mechanism is communicated with the oil-gas separation mechanism, an oil-gas mixing pipe is arranged between the screw main machine and the oil-gas separation mechanism, and the oil-gas separation mechanism is connected with an emptying mechanism; the gas supply port is connected to the oil-gas separation mechanism, and a control mechanism is arranged among the gas inlet, the oil-gas separation mechanism, the gas supply port and the emptying mechanism. The utility model aims to improve the compression efficiency and guarantee the stable operation of the compressor.

Description

TECHNICAL FIELD

[0001] The utility model relates to a compressor technical field especially relates to a kind of compressor for decarburization. BACKGROUND

[0002] Gas compressor is an important equipment widely used in modern industry, especially plays an important role in the field of natural gas treatment, petrochemical industry, gas storage and transportation. Natural gas compressor is mainly used to pressurize natural gas, so that it can be efficiently transported, stored or processed. The compression process of natural gas needs to compress the volume of gas to a higher pressure state to increase the concentration of carbon dioxide in the gas, which is beneficial to more efficient filtration of carbon dioxide in the gas and improves the quality of natural gas.

[0003] The existing gas compressor has high energy consumption, poor durability of the equipment and increased risk of equipment failure due to temperature rise of compressed gas during compression process. With the improvement of environmental protection requirements and the increase of natural gas decarburization demand, the efficiency optimization of gas compressor in carbon dioxide separation process has become a technical problem to be solved. SUMMARY

[0004] The main purpose of the utility model is to provide a kind of compressor for decarburization, to improve the compression efficiency and ensure the stable operation of compressor.

[0005] To achieve the above purpose, the utility model provides a kind of compressor for decarburization, comprising a compression host, the compression host one end is equipped with air inlet, the other end is equipped with gas supply port, the air inlet is sequentially equipped with air inlet filtering mechanism along the conveying direction of gas, screw host, the screw host is connected with oil circulation mechanism and oil-gas separation mechanism, the oil circulation mechanism is communicated with oil-gas separation mechanism at the end away from screw host, oil-gas mixing pipe is equipped between screw host and oil-gas separation mechanism, the oil-gas separation mechanism is connected with emptying mechanism.

[0006] The gas supply port is connected to the oil-gas separation mechanism, and a control mechanism is provided between the air inlet, oil-gas separation mechanism, gas supply port and emptying mechanism.

[0007] In an embodiment of the present application, the air inlet filtering mechanism is provided with at least two, and the two air inlet filtering mechanisms are connected in parallel and located between the air inlet and the screw host.

[0008] In an embodiment of the present application, the gas supply port is sequentially provided with gas cooling mechanism, gas cooling temperature measuring mechanism, gas filtering mechanism and gas pressure detection mechanism along the direction away from the oil-gas separation mechanism, and the end of the gas supply port away from the oil-gas separation mechanism is provided with a backflow structure relative to the air inlet.

[0009] In an embodiment of the present application, the oil circulation mechanism is provided with a temperature control valve, one end of the temperature control valve is connected to the oil-gas separation mechanism, the other end is connected to the screw main machine, the oil filter mechanism is connected between the screw main machine and the temperature control valve, and the oil circulation mechanism is provided with an oil injection pressure measurement mechanism relative to the screw main machine.

[0010] The oil circulation mechanism is connected in parallel with an oil cooling branch, one end of the oil cooling branch is connected to the temperature control valve, and the other end is connected to the oil filter mechanism.

[0011] In an embodiment of the present application, the control mechanism comprises a gas supply venting part, a gas inlet venting part, an internal circulation part, and an oil-gas separation venting part, one end of the gas supply venting part is connected to the venting mechanism, and the other end is connected to one end of the gas cooling mechanism facing the oil-gas separation mechanism.

[0012] One end of the oil-gas separation venting part is connected to the oil-gas separation mechanism, and the other end is connected to the venting mechanism.

[0013] The gas inlet venting part and the internal circulation part are connected to each other and to the oil-gas separation venting part, the internal circulation part is connected to the screw main machine, and the gas inlet venting part is connected to the backflow structure.

[0014] In an embodiment of the present application, the control mechanism further comprises a venting valve, a venting electromagnetic valve, a loading electromagnetic valve, an unloading electromagnetic valve, and an internal circulation valve, the venting valve is connected to the gas inlet venting part and connected to the first end of the venting electromagnetic valve, the second end of the venting electromagnetic valve is connected to the loading electromagnetic valve and the unloading electromagnetic valve and connected to the venting mechanism, the third end of the venting electromagnetic valve is connected to the loading electromagnetic valve and the unloading electromagnetic valve, and the unloading electromagnetic valve is connected to the screw main machine.

[0015] The internal circulation valve is arranged in the internal circulation part, and one end of the internal circulation valve is connected to the screw main machine and the unloading electromagnetic valve.

[0016] By adopting the above technical scheme, the present application has the following advantages:

[0017] 1. The air inlet is used for conveying the gas to be compressed into the compression main machine, and the air outlet is used for outputting the compressed gas, the gas entering from the air inlet will first pass through the air inlet filtering mechanism and then be injected into the screw main machine through the air inlet valve, the air inlet filtering mechanism can filter part of the gas impurities and discharge them through the blowdown port, thereby ensuring the product quality, the screw main machine is connected with the oil circulating mechanism, and the circulating oil is used for cooling the compressed gas, thereby ensuring the safety during the compression of the gas, after the compression is completed, the oil-gas mixture is input into the oil-gas separation mechanism through the oil-gas mixing pipe, and after the oil is separated, stable compressed gas can be obtained, through the structure, the stability of the compressor during operation can be ensured, and danger can be avoided, after the gas is quickly and stably compressed by the compressor, the relative concentration of carbon dioxide in the gas can be effectively improved, the compressed gas is conveyed to the carbon dioxide removal machine through the air outlet, and natural gas and other fuel gases are filtered, which is beneficial to improving the carbon removal effect, and the purpose of improving the quality of natural gas is achieved.

[0018] 2. The oil circulating mechanism is connected with the screw main machine and the oil-gas separation mechanism, the cooling structure is arranged in the oil circulating mechanism, the oil separated from the gas is extracted from the oil-gas separation mechanism, and after being cooled, the oil is input into the screw main machine, the auxiliary compression oil can be recycled, the working efficiency of the compressor is ensured, the working stability of the compressor is improved, and the generation of pollutants can be reduced.

[0019] 3. The air outlet is communicated with the oil-gas separation mechanism, the compressed gas can be transferred away in the first time, and the compression efficiency is improved, and in order to ensure the safety of the compressor in shutdown or emergency, the oil-gas separation mechanism is connected with the vent valve, the vent valve can urgently vent the oil-gas separation mechanism when the pressure in the oil-gas separation mechanism exceeds a certain value, danger is avoided, and the air inlet, the air outlet and the oil-gas separation mechanism are all connected to the vent mechanism through the control mechanism, so that the machine body can be urgently stopped and the internal pressure can be quickly reduced to a safe level when any part of the machine body is blocked and the internal pressure of the machine body rises, and safety hazards can be avoided. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained according to the structures shown in the drawings without creative labor for those skilled in the art.

[0021] Figure 1 It is a structural schematic view of the compressor for decarburization.

[0022] Explanation of reference numerals:

[0023] 1, compression host; 2, air inlet; 21, air inlet filter mechanism; 22, screw host; 3, oil circulation mechanism; 31, temperature control valve; 32, oil cooling branch; 4, oil-gas separation mechanism; 5, emptying mechanism; 6, gas supply port; 61, gas cooling mechanism; 62, backflow structure; 7, control mechanism; 71, gas supply emptying part; 72, air inlet emptying part; 73, internal circulation part; 74, oil-gas separation emptying part.

[0024] The realization, functional features and advantages of the utility model will be further described with reference to the drawings in combination with embodiments. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical scheme and advantages of the present application more clear, the present application will be further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and not to limit the present application.

[0026] Reference Figure 1 To achieve the above purpose, the utility model provides a kind of compressor for decarburization, including compression host 1, compression host 1 one end is equipped with air inlet 2, the other end is equipped with gas supply port 6, air inlet 2 is along the conveying direction of gas in turn equipped with air inlet filter mechanism 21, screw host 22, screw host 22 is connected with oil circulation mechanism 3 and oil-gas separation mechanism 4, oil circulation mechanism 3 is communicated at the end away from screw host 22 in oil-gas separation mechanism 4, oil-gas mixing pipe is equipped between screw host 22 and oil-gas separation mechanism 4, oil-gas separation mechanism 4 is connected with emptying mechanism 5;

[0027] Gas supply port 6 is connected to oil-gas separation mechanism 4, control mechanism 7 is equipped between air inlet 2, oil-gas separation mechanism 4, gas supply port 6, emptying mechanism 5.

[0028] Air inlet 2 is used to transport the gas to be compressed into compression host 1, and gas supply port 6 is used to output the compressed gas. The gas entering from the air inlet 2 will first pass through the air inlet filter mechanism 21 and then be injected into the screw host 22 through the air inlet valve. The air inlet filter mechanism 21 can filter part of the gas impurities and discharge them through the blowdown port to ensure product quality. The screw host 22 is connected with the oil circulation mechanism 3, which uses circulating oil to cool the compressed gas and ensure the safety of the gas compression. After compression is completed, the oil-gas mixture will be input into the oil-gas separation mechanism 4 through the oil-gas mixing pipe. After the oil is separated, stable compressed gas can be obtained. This structure can ensure the stability of the compressor operation and avoid danger. The compressor of the present application can quickly and stably compress the gas, effectively improve the relative concentration of carbon dioxide in the gas, and transport the compressed gas from the gas supply port to the carbon dioxide removal machine to filter natural gas and other fuel gases, which is beneficial to improve the carbon removal effect and carbon removal rate, so as to achieve the purpose of improving the quality of natural gas.

[0029] The oil circulation mechanism 3 is connected with the screw main machine 22 and the oil-gas separation mechanism 4, and the oil circulation mechanism 3 is provided with a cooling structure. The oil separated from the gas is extracted from the oil-gas separation mechanism 4, cooled and then input into the screw main machine 22. The auxiliary compression oil can be recycled, the working efficiency of the compressor is ensured, the working stability of the compressor is improved, and the generation of pollutants is reduced.

[0030] The gas supply port 6 is communicated with the oil-gas separation mechanism 4, so that the compressed gas can be transferred away in the first time, and the compression efficiency is improved. In order to ensure the safety of the compressor in shutdown or emergency, the oil-gas separation mechanism 4 is connected with a vent valve. The vent valve can vent the oil-gas separation mechanism 4 in emergency when the pressure in the oil-gas separation mechanism 4 exceeds a certain value, so as to avoid danger. At the same time, the control mechanism 7 is used to connect the air inlet 2, the gas supply port 6 and the oil-gas separation mechanism 4 to the venting mechanism 5, so that the machine can be controlled and managed by the valve, and the machine can be stopped in emergency and the internal pressure can be quickly reduced to a safe level when any part of the machine is blocked, so as to avoid safety hazards.

[0031] In combination with the drawings, Figure 1 The air inlet filter mechanism 21 is provided with at least two, and the two air inlet filter mechanisms 21 are connected in parallel and between the air inlet 2 and the screw main machine 22.

[0032] The air inlet 2 for connecting the input gas is provided with only one group, but at least two groups of branch pipes are required to be configured, so that when one group of air inlet filter mechanisms needs to be cleaned, repaired and maintained, the other group of air inlet filter mechanisms can work normally, so as to ensure the working efficiency.

[0033] In combination with the drawings, Figure 1 The gas supply port 6 is provided with a gas cooling mechanism 61, a gas cooling temperature measuring mechanism, a gas filter mechanism and a gas pressure detection mechanism in sequence away from the oil-gas separation mechanism 4. The end of the gas supply port 6 away from the oil-gas separation mechanism 4 is provided with a backflow structure 62 relative to the air inlet 2.

[0034] The gas supply pipeline connected with the gas supply port 6 is provided with a gas cooling mechanism 61 for cooling the gas;

[0035] The gas cooling temperature measuring mechanism is used for measuring the temperature of the cooled gas. When the temperature of the gas is too high, the cooling fan additionally arranged outside the gas cooling mechanism 61 will work to ensure the cooling of the gas;

[0036] The gas filter mechanism can further filter the gas to prevent the compression oil from mixing into the gas, ensure the purity of the gas and avoid impurities;

[0037] The air pressure detection mechanism can test the air pressure of the air supply port 6, and the backflow structure 62 can transport the excess gas back to the air inlet 2 and recover it after the machine body is stopped, which can effectively avoid waste of gas resources.

[0038] With reference to Figure 1 The oil circulation mechanism 3 is provided with a temperature control valve 31, one end of which is connected to the oil-gas separation mechanism 4, and the other end is connected to the screw main machine 22. An oil filtering mechanism is connected between the screw main machine 22 and the temperature control valve 31. The oil circulation mechanism 3 is provided with an oil injection pressure measurement mechanism relative to the screw main machine 22. The oil circulation mechanism 3 is connected in parallel with an oil cooling branch 32, one end of which is connected to the temperature control valve 31, and the other end is connected to the oil filtering mechanism.

[0039] The temperature control valve 31 can detect the temperature of the oil. When the oil temperature is normal, it can be directly input to the oil filtering mechanism and sent into the screw main machine 22 to improve the oil recovery efficiency. When the oil temperature is too high, the oil will enter the oil cooling branch 32 with the help of the temperature control valve 31, be cooled by the cooling structure, and then be measured for temperature after cooling and merged into the oil circulation mechanism 3, and filtered by the oil filtering mechanism. The oil circulation mechanism 3 is also provided with an oil injection pressure measurement mechanism towards the screw main machine 22, which can detect the pressure of the oil, so that the system can more accurately control the input speed of the oil and ensure the compression efficiency.

[0040] With reference to Figure 1 The control mechanism 7 includes a gas supply venting part 71, an air inlet venting part 72, an internal circulation part 73, and an oil-gas separation venting part 74. One end of the gas supply venting part 71 is connected to the venting mechanism 5, and the other end is connected to one end of the gas cooling mechanism 61 towards the oil-gas separation mechanism 4. One end of the oil-gas separation venting part 74 is connected to the oil-gas separation mechanism 4, and the other end is connected to the venting mechanism 5. The air inlet venting part 72 and the internal circulation part 73 are connected to each other and to the oil-gas separation venting part 74. The internal circulation part 73 is connected to the screw main machine 22, and the air inlet venting part 72 is connected to the backflow structure 62.

[0041] The gas supply venting part 71, the air inlet venting part 72, the internal circulation part 73, and the oil-gas separation venting part 74 can connect different mechanisms to the venting mechanism 5, so that in an emergency, the gas supply venting part 71, the air inlet venting part 72, the internal circulation part 73, and the oil-gas separation venting part 74 can be started by the electric control valve and quickly make the pressure in the compressor safe, ensuring the safety of the user.

[0042] With reference to Figure 1The control mechanism 7 further comprises a vent valve, a vent solenoid valve, a loading solenoid valve, an unloading solenoid valve, and an internal circulation valve. The vent valve is connected to the air inlet venting portion 72 and connected to the first end of the vent solenoid valve. The second end of the vent solenoid valve is connected to the loading solenoid valve and the unloading solenoid valve, and connected to the venting mechanism 5. The third end of the vent solenoid valve is connected to the loading solenoid valve and the unloading solenoid valve. The unloading solenoid valve is connected to the screw main machine 22.

[0043] The internal circulation valve is arranged in the internal circulation portion 73, and one end of the internal circulation valve is connected to the screw main machine 22 and the unloading solenoid valve.

[0044] The vent valve, the vent solenoid valve, the loading solenoid valve, the unloading solenoid valve, and the internal circulation valve cooperate with each other. Each valve comprises at least three pins, and can efficiently protect the whole machine and avoid danger in production under the interaction.

[0045] In the drawings of the embodiment, the same or similar reference numerals correspond to the same or similar components; in the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore the terms describing the positional relationship in the drawings are only used for exemplary illustration, and cannot be understood as a limitation of the present patent. For those skilled in the art, the specific meanings of the above terms can be understood according to the specific circumstances.

[0046] The above is only a preferred embodiment of the present application, and does not limit the present application. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A compressor for decarburization comprising a compression main, characterized in that, One end of the compression host is provided with an air inlet, and the other end is provided with a gas supply port, the air inlet is sequentially provided with an air inlet filtering mechanism and a screw host along the conveying direction of the gas, the screw host is connected with an oil circulation mechanism and an oil-gas separation mechanism, one end of the oil circulation mechanism away from the screw host is communicated with the oil-gas separation mechanism, an oil-gas mixing pipe is arranged between the screw host and the oil-gas separation mechanism, and the oil-gas separation mechanism is connected with a venting mechanism. The gas supply port is connected to the oil-gas separation mechanism, and a control mechanism is arranged between the air inlet, the oil-gas separation mechanism, the gas supply port and the venting mechanism.

2. A compressor for decarburization according to claim 1, characterized in that, The air inlet filtering mechanism is provided with at least two, and the two air inlet filtering mechanisms are parallel to each other and between the air inlet and the screw host.

3. A compressor for decarburization according to claim 1, characterized in that, The gas supply port is sequentially provided with a gas cooling mechanism, a gas cooling temperature measuring mechanism, a gas filtering mechanism and a gas pressure detection mechanism in the direction away from the oil-gas separation mechanism, and the end of the gas supply port away from the oil-gas separation mechanism is provided with a backflow structure relative to the air inlet.

4. A compressor for decarburization according to claim 1, characterized in that, The oil circulation mechanism is provided with a temperature control valve, one end of the temperature control valve is connected to the oil-gas separation mechanism, the other end of the temperature control valve is connected to the screw host, an oil filtering mechanism is connected between the screw host and the temperature control valve, and the oil circulation mechanism is provided with an oil injection pressure measuring mechanism relative to the screw host. The oil circulation mechanism is connected with an oil cooling branch in parallel, one end of the oil cooling branch is connected to the temperature control valve, and the other end of the oil cooling branch is connected to the oil filtering mechanism.

5. A compressor for decarburization according to claim 3, wherein, The control mechanism comprises a gas supply venting part, an air inlet venting part, an internal circulation part, an oil-gas separation venting part, one end of the gas supply venting part is connected to the venting mechanism, and the other end of the gas supply venting part is connected to one end of the gas cooling mechanism facing the oil-gas separation mechanism; One end of the oil-gas separation venting part is connected to the oil-gas separation mechanism, and the other end of the oil-gas separation venting part is communicated with the venting mechanism; The air inlet venting part and the internal circulation part are connected to each other and connected to the oil-gas separation venting part together, the internal circulation part is connected to the screw host, and the air inlet venting part is connected to the backflow structure.

6. A compressor for decarburization according to claim 5, characterized in that, The control mechanism further comprises a venting valve, a venting electromagnetic valve, a loading electromagnetic valve, an unloading electromagnetic valve and an internal circulation valve, the venting valve is connected to the air inlet venting part and connected to the first end of the venting electromagnetic valve, the second end of the venting electromagnetic valve is connected to the loading electromagnetic valve and the unloading electromagnetic valve and connected to the venting mechanism, the third end of the venting electromagnetic valve is connected to the loading electromagnetic valve and the unloading electromagnetic valve, and the unloading electromagnetic valve is connected to the screw host; The internal circulation valve is arranged in the internal circulation part, and one end of the internal circulation valve is connected to the screw host and the unloading electromagnetic valve.

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