Gas compression system of screw machine

Abstract

The utility model relates to a gas compression system of a screw machine, and belongs to the technical field of gas compression. Comprising a first silencer, two filters, a screw machine, a second silencer, a water cooler, a gas-liquid separator, a motor, a plurality of connecting pipelines and a controller. According to the utility model, the coking equipment is connected with the inlets of the two filters to filter impurities in gas output from the coking equipment, the two filters are adopted and can be alternately used, and when one filter is used, the other filter is maintained to ensure that the filtering work is continuously carried out; compression power is provided for the screw machine through the motor, the coke-oven gas is compressed by the screw machine, and the motor and the screw machine are adopted as gas compression equipment, so that the power is lower, the amount of compressed gas generated by the screw machine during one-time compression treatment is smaller, the compressed gas can be completely reacted, residual compressed gas is avoided, and the service life of the coke-oven gas is prolonged. And the power consumption of the motor and the screw machine is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of gas compression, in particular to a screw machine gas compression system. Background Art

[0002] In the methanol production process, the coke oven gas produced by the coking equipment needs to be input into the gas compression equipment for compression treatment, and then passed into the subsequent debenzenization equipment for debenzenization treatment.

[0003] In the prior art, a gas compressor is usually used as a gas compression device. However, the power of the gas compressor is relatively large, and the amount of compressed gas generated by one compression process is large. One debenzenization process cannot completely process all the compressed gas. The unprocessed compressed gas will return to the input gas pipeline and wait for the next compression process. This process easily causes serious power consumption of the gas compressor and electricity consumption, and also easily leads to waste of resources. Summary of the Invention

[0004] In order to solve the above technical problems, the present invention provides a screw compressor gas compression system. The technical solution of the present invention is as follows:

[0005] The utility model provides a screw machine gas compression system, comprising a first muffler, two filters, a screw machine, a second muffler, a water cooler, a gas-liquid separator, a motor, multiple connecting pipes and a controller, wherein the outlet of the coking equipment is connected to the inlet of the first muffler through a connecting pipe, the outlet of the first muffler is connected to the inlet of both the filters through a connecting pipe, the outlet of both the filters is connected to the inlet of the screw machine through a connecting pipe, the outlet of the screw machine is connected to the inlet of the second muffler through a connecting pipe, the outlet of the second muffler is connected to the inlet of the water cooler through a connecting pipe, the outlet of the water cooler is connected to the inlet of the gas-liquid separator through a connecting pipe, the outlet of the gas-liquid separator is connected to the inlet of the debenzening equipment through a connecting pipe, the output shaft of the motor is connected to the input shaft of the screw machine through a coupling; and the motor is electrically connected to the controller.

[0006] Optionally, a screw machine gas compression system also includes a first electric valve and a first shaped-eight blind plate, wherein the first electric valve and the first shaped-eight blind plate are both connected to the connecting pipe between the coking equipment and the first muffler, and the first shaped-eight blind plate is located between the first electric valve and the first muffler; the first electric valve is electrically connected to the controller.

[0007] Optionally, a screw machine gas compression system further includes a second shaped-eight blind plate, which is connected to the connecting pipe between the coking equipment and the first muffler, and the second shaped-eight blind plate is located between the first muffler and the first shaped-eight blind plate.

[0008] Optionally, a screw compressor gas compression system further includes a first check valve, wherein the first check valve is connected to a connecting pipe between the second muffler and the water cooler.

[0009] Optionally, a screw machine gas compression system also includes a second electric valve, a gate valve and a second check valve, wherein the second electric valve, the gate valve and the second check valve are all located on the connecting pipe between the gas-liquid separator and the debenzenization equipment, the second electric valve is located on one side of the debenzenization equipment, the gate valve is located on one side of the second electric valve, and the second check valve is located between the gate valve and the separator; the second electric valve is electrically connected to the controller.

[0010] Optionally, a screw compressor gas compression system further includes a third shaped-eight blind plate, which is connected to the connecting pipe between the separator and the debenzenization equipment, and the third shaped-eight blind plate is located between the second electric valve and the gate valve.

[0011] All the above optional technical solutions can be combined arbitrarily, and the present utility model does not provide detailed descriptions of the structures after each combination.

[0012] By means of the above solution, the beneficial effects of the present invention are as follows:

[0013] By arranging a first silencer, two filters, a screw machine, a second silencer, a water cooler, a separator, and an electric motor, the coking equipment is connected to the inlets of the two filters through the first silencer, and the outlets of the two filters are connected to the inlet of the screw machine. The filters can filter impurities in the coke oven gas output from the coking equipment, thereby sending the filtered coke oven gas into the screw machine for compression processing. The two filters in the utility model can be used alternately. When one filter is in use, the other filter can be cleaned and maintained to ensure continuous filtering work.

[0014] The screw machine is connected to the debenzenization equipment through a second silencer, a water cooler and a separator. The output shaft of the motor is connected to the input shaft of the screw machine through a coupling. The motor provides compression power for the screw machine. After the screw machine completes the compression process, the generated compressed gas is transported to the debenzenization equipment to facilitate the compressed gas to undergo subsequent debenzenization treatment. By selecting the motor and the screw machine as gas compression equipment, the utility model has lower power than the gas compressor in the prior art, so that the amount of compressed gas generated by the screw machine during a compression process is smaller, and the compressed gas generated during a reaction process can be completely reacted, avoiding the existence of residual compressed gas, reducing the power consumption of the motor and the screw machine, reducing the waste of electricity, and reducing the waste of resources; by providing the first silencer and the second silencer, the noise generated by the screw machine during operation can be reduced, protecting the staff.

[0015] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and to implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the system composition of the utility model;

[0017] Figure 2 This is a schematic diagram of the connection relationship among the coking equipment, the first electric valve, the first splayed blind plate, the second splayed blind plate, the first muffler and the two filters in the utility model;

[0018] Figure 3 This is a schematic diagram of the connection relationship between the debenzening equipment, the second electric valve, the gate valve, the second check valve and the third figure-eight blind plate in the utility model.

[0019] Description of Figure Numbers:

[0020] 1. Coking equipment; 2. First silencer; 3. Filter; 4. Screw compressor; 5. Second silencer; 6. Water cooler; 7. Separator; 8. Debenzening equipment; 9. Electric motor; 10. Coupling; 11. First electric valve; 12. First splayed blind plate; 13. Second splayed blind plate; 14. First check valve; 15. Second electric valve; 16. Gate valve; 17. Second check valve; 18. Third splayed blind plate. DETAILED DESCRIPTION

[0021] The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0022] like Figures 1 to 3As shown, the utility model provides a screw machine gas compression system, including a first muffler 2, two filters 3, a screw machine 4, a second muffler 5, a water cooler 6, a gas-liquid separator 7, a motor 9, multiple connecting pipes and a controller, the outlet of the coking equipment 1 is connected to the inlet of the first muffler 2 through a connecting pipe, the outlet of the first muffler 2 is connected to the inlet of the two filters 3 through a connecting pipe, the outlets of the two filters 3 are connected to the inlet of the screw machine 4 through a connecting pipe, the outlet of the screw machine 4 is connected to the inlet of the second muffler 5 through a connecting pipe, the outlet of the second muffler 5 is connected to the inlet of the water cooler 6 through a connecting pipe, the outlet of the water cooler 6 is connected to the inlet of the gas-liquid separator 7 through a connecting pipe, the outlet of the gas-liquid separator 7 is connected to the inlet of the debenzenization equipment 8 through a connecting pipe, the output shaft of the motor 9 is connected to the input shaft of the screw machine 4 through a coupling 10; the motor 9 is electrically connected to the controller.

[0023] Specifically, the power of the electric motor 9 in the present invention is 2000 kW.

[0024] In a specific embodiment, the coking equipment 1 is connected to the inlet of two filters 3 through the first silencer 2, and the outlet of the two filters 3 is connected to the inlet of the screw machine 4. The filter 3 can filter the impurities inside the coke oven gas output from the coking equipment 1; the filtered gas is sent into the screw machine 4, and the motor 9 provides compression power for the screw machine 4, so that the filtered coke oven gas is sent into the screw machine 4 for compression treatment; after the screw machine 4 completes the compression treatment, the generated compressed gas is transported to the debenzenization equipment 8 to facilitate the compressed gas to undergo subsequent reactions.

[0025] The utility model selects the electric motor 9 and the screw machine 4 as the gas compression equipment, which has smaller power than the gas compressor in the prior art, so that the amount of compressed gas generated by the screw machine 4 during a compression process is smaller, and the compressed gas generated during a reaction process can be completely reacted, avoiding the situation of residual compressed gas, reducing the power consumption of the electric motor 9 and the screw machine 4, reducing the waste of electricity and reducing the waste of resources; the two filters 3 in the utility model can be used alternately, and when one of the filters 3 is in use, the other filter 3 can be cleaned and maintained to ensure the continuous filtering work; the utility model can reduce the noise generated by the screw machine 4 during operation and protect the staff by setting the first muffler 2 and the second muffler 5.

[0026] Optionally, a screw machine gas compression system also includes a first electric valve 11 and a first splayed blind plate 12, wherein the first electric valve 11 and the first splayed blind plate 12 are both connected to the connecting pipe between the coking equipment 1 and the first muffler 2, and the first splayed blind plate 12 is located between the first electric valve 11 and the first muffler 2; the first electric valve 11 is electrically connected to the controller.

[0027] By connecting the first electric valve 11 and the first splayed blind plate 12 , the first splayed blind plate 12 can completely cut off the connecting pipe where the first electric valve 11 is located, so as to facilitate maintenance of the equipment or the connecting pipe.

[0028] Optionally, a screw machine gas compression system further includes a second shaped-eight blind plate 13, which is connected to the connecting pipe between the coking equipment 1 and the first muffler 2, and the second shaped-eight blind plate 13 is located between the first muffler 2 and the first shaped-eight blind plate 12.

[0029] The second eight-shaped blind plate 13 can completely cut off the connecting pipeline where the first muffler 2 is located, so as to facilitate maintenance of the equipment or the connecting pipeline.

[0030] Optionally, a screw compressor gas compression system further includes a first check valve 14 , which is connected to a connecting pipe between the second muffler 5 and the water cooler 6 .

[0031] Optionally, a screw machine gas compression system also includes a second electric valve 15, a gate valve 16 and a second check valve 17, and the second electric valve 15, the gate valve 16 and the second check valve 17 are all located on the connecting pipe between the gas-liquid separator 7 and the debenzenization equipment 8, the second electric valve 15 is located on one side of the debenzenization equipment 8, the gate valve 16 is located on one side of the second electric valve 15, and the second check valve is located between the gate valve 16 and the separator 7; the second electric valve 15 is electrically connected to the controller.

[0032] Specifically, the first electric valve 11 and the second electric valve 15 in the present invention are both electric butterfly valves.

[0033] The first electric valve 11 and the second electric valve 15 in the present invention are both used to adjust the flow rate of the gas. The first check valve 14 and the second check valve 17 in the present invention are both used to prevent the gas from flowing back.

[0034] The gate valve 16 can be used as a backup valve for the connecting pipeline where the second electric valve 15 is located. When the second electric valve 15 fails, the staff can manually start the gate valve 16 to ensure the normal transportation of compressed gas.

[0035] Optionally, a screw compressor gas compression system further includes a third shaped-eight blind plate 18, which is connected to the connecting pipe between the separator 7 and the debenzenization equipment 8, and the third shaped-eight blind plate 18 is located between the second electric valve 15 and the gate valve 16.

[0036] During equipment maintenance or emergency repairs, the first electric valve 11 and the second electric valve 15 can respond quickly and close, while the first and third splayed blind plates 12 and 18 ensure isolation after closing to prevent the accident from expanding.

[0037] Furthermore, a gas compressor commonly used in the prior art can be used as a backup gas compression device for the gas compression system provided by the present invention.

[0038] The connecting pipeline between the third eight-shaped blind plate 18 and the gate valve 16 in the present invention can also be connected to another plant area through a pipeline, and the electric gate valve is connected to the pipeline. When the compression equipment used in the other plant area fails, the controller can close the second electric valve 15 in the present invention and open the electric gate valve, so that the compressed gas generated by the screw machine 4 is transported to the other plant area through the pipeline and the electric gate valve, and the plant area where the screw machine gas compression system provided by the utility model is located can start the standby gas compressor to work.

[0039] In a specific implementation, the coke oven gas output by the coking equipment 1 is filtered through one of the filters 3 to remove internal impurities, and the filtered coke oven gas is transported to the screw machine 4, which is driven by the motor 9 to compress the coke oven gas to obtain compressed gas. The compressed gas enters the water cooler 6 for cooling treatment to reduce the temperature of the compressed gas. The compressed gas carries liquid inside, and the cooled compressed gas enters the gas-liquid separator 7 for gas-liquid separation, so that the gas-liquid separator 7 separates the liquid inside the cooled compressed gas and outputs dry compressed gas. Finally, the dry compressed gas is transported to the debenzenization equipment 8 for debenzenization treatment.

[0040] In summary, the screw machine gas compression system provided by the utility model uses a motor 9 and a screw machine 4 with lower power, so that the amount of compressed gas generated during one gas compression is smaller, thereby reducing the power consumption of the motor 9 and the screw machine 4, reducing the waste of electricity, and reducing the waste of resources.

[0041] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. It should be pointed out that ordinary technicians in this technical field can make several improvements and modifications without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A screw compressor gas compression system, characterized in that: include: A first muffler (2), two filters (3), a screw machine (4), a second muffler (5), a water cooler (6), a gas-liquid separator (7), a motor (9), a plurality of connecting pipes and a controller, wherein the outlet of the coking equipment (1) is connected to the inlet of the first muffler (2) through a connecting pipe, the outlet of the first muffler (2) is connected to the inlet of the two filters (3) through a connecting pipe, the outlets of the two filters (3) are connected to the inlet of the screw machine (4) through a connecting pipe, the outlet of the screw machine (4) is connected to the inlet of the second muffler (5) through a connecting pipe, the outlet of the second muffler (5) is connected to the inlet of the water cooler (6) through a connecting pipe, the outlet of the water cooler (6) is connected to the inlet of the gas-liquid separator (7) through a connecting pipe, the outlet of the gas-liquid separator (7) is connected to the inlet of the debenzenization equipment (8) through a connecting pipe, and the output shaft of the motor (9) is connected to the input shaft of the screw machine (4) through a coupling (10); The motor (9) is electrically connected to the controller.

2. The screw compressor gas compression system according to claim 1, characterized in that: Also includes: a first electric valve (11) and a first splayed blind plate (12), wherein the first electric valve (11) and the first splayed blind plate (12) are both connected to a connecting pipe between the coking equipment (1) and the first muffler (2), and the first splayed blind plate (12) is located between the first electric valve (11) and the first muffler (2); The first electric valve (11) is electrically connected to the controller.

3. The screw compressor gas compression system according to claim 2, characterized in that: Also includes: A second splayed blind plate (13), the second splayed blind plate (13) being connected to a connecting pipe between the coking equipment (1) and the first muffler (2), and the second splayed blind plate (13) being located between the first muffler (2) and the first splayed blind plate (12).

4. The screw compressor gas compression system according to claim 1, characterized in that: Also includes: A first check valve (14), the first check valve (14) is connected to the connecting pipe between the second muffler (5) and the water cooler (6).

5. The screw compressor gas compression system according to claim 1, characterized in that: Also includes: a second electric valve (15), a gate valve (16) and a second check valve (17); the second electric valve (15), the gate valve (16) and the second check valve (17) are all located on the connecting pipe between the gas-liquid separator (7) and the debenzenization device (8); the second electric valve (15) is located on one side of the debenzenization device (8); the gate valve (16) is located on one side of the second electric valve (15); and the second check valve (17) is located between the gate valve (16) and the separator (7); The second electric valve (15) is electrically connected to the controller.

6. The screw compressor gas compression system according to claim 5, characterized in that: Also includes: A third splayed blind plate (18), the third splayed blind plate (18) being connected to the connecting pipe between the separator (7) and the debenzenization device (8), the third splayed blind plate (18) being located between the second electric valve (15) and the gate valve (16).

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