JP4975574B2 - Compressor and operation method thereof - Google Patents

Description

  The present invention relates to a compressor and an operation method thereof.

  The product manufacturing method may include a step of compressing a product gas as a raw material to a predetermined pressure by a compressor. The compressor uses, for example, a seal gas to prevent external fluid and foreign matter from entering the fluid to be compressed (process gas). This seal gas is usually supplied via a filter element from a gas supply source installed separately from the compressor. For example, in Patent Document 1 below, two types of filter elements (first and second filter elements) are installed in series in the flow direction of the seal gas, and the first is disposed upstream in the flow direction of the seal gas. The filter element removes large particles from the gas flow, and the second filter element disposed downstream thereof removes particles smaller than the first filter element.

  When the supply source of the seal gas is not installed near the compressor, a part of the process gas is used as the seal gas.

JP-T-2004-508169

  By the way, the process gas described above may contain dirt (polymer) due to oil such as tar. When a part of such process gas is used as a seal gas, the frequency of replacement of the filter element increases and pressure loss increases due to adhesion of the polymer or the like contained in the process gas to the filter element. In addition, the increased adhesion of the polymer to the filter element could cause it to fail. In addition, collisions of the polymer with the filter element could degrade its function.

  Therefore, the present invention has been proposed in view of the above-described problems, and even when the fluid to be compressed (process gas) contains impurities such as polymers, the structure to be compressed has a simple structure. It is an object of the present invention to provide a compressor that can be stably used for shaft sealing of a fluid and an operation method thereof.

  A compressor according to a first aspect of the present invention that solves the above-described problem includes a shaft that is rotatably supported by a casing, an impeller that is attached to the shaft and rotates to compress a fluid to be compressed, Shaft sealing fluid supply means for supplying a shaft sealing fluid having the same component as the fluid to be compressed into the casing so as to seal the compressed fluid, and the shaft sealing fluid supply means includes the shaft sealing. A shaft sealing fluid supply line through which the working fluid flows, a first impurity removal mechanism provided in the shaft sealing fluid supply line, for removing impurities contained in the shaft sealing fluid, and the first impurity removal A cleaning agent distribution means provided on the upstream side of the mechanism in the flow direction of the shaft seal fluid, and a cleaning agent distribution means for flowing a cleaning agent for cleaning the shaft seal fluid supply means; and the cleaning agent distribution means, A detergent distribution line through which the detergent flows; and And characterized in that having a second impurity removing mechanism for removing impurities flowing in the cleaning agent circulation line.

  A compressor according to a second invention for solving the above-described problem is the compressor according to the first invention, wherein the cleaning agent flow means can control the flow rate of the cleaning agent. It is characterized by comprising.

  A compressor according to a third invention that solves the above-described problem is the compressor according to the first or second invention, wherein the second impurity removal mechanism is made of metal and formed in a net shape. It is characterized by comprising the filtration means.

  A compressor according to a fourth invention that solves the above-described problem is the compressor according to the third invention, wherein the first filtering means is disposed downstream in the fluid flow direction of the first filtering means. It is characterized by removing impurities having a particle size about 10 times larger than impurities removed by the second filtering means.

  A compressor according to a fifth invention that solves the above-described problem is the compressor according to the third or fourth invention, wherein the downstream side of the cleaning agent in the flow direction of the cleaning agent in the cleaning agent distribution line is the first compressor. The impurity removing mechanism is connected to the upstream side in the flow direction of the shaft sealing fluid.

  A compressor according to a sixth invention that solves the above-described problem is the compressor according to the third or fourth invention, wherein the downstream side in the flow direction of the cleaning agent in the cleaning agent distribution line is the first compressor. The impurity removing mechanism is connected to the downstream side in the flow direction of the shaft sealing fluid.

  A compressor according to a seventh invention for solving the above-described problem is a compressor according to any one of the first to sixth inventions, wherein the shaft sealing fluid is compressed by the impeller. It is the fluid to be compressed.

  A compressor operating method according to an eighth invention for solving the above-described problem is a compressor operating method according to any one of the first to seventh inventions, wherein the shaft seal fluid supply means is provided. The shaft seal fluid is circulated by using the cleaning agent distribution means until 24 hours have passed since the cleaning with the cleaning agent.

  According to the compressor according to the first invention, the shaft body rotatably supported by the casing, the impeller attached to the shaft body and rotating to compress the fluid to be compressed, and the shaft to be compressed. Shaft sealing fluid supply means for supplying a shaft sealing fluid having the same component as the fluid to be compressed into the casing so as to seal, and the shaft sealing fluid supply means circulates the shaft sealing fluid. A shaft sealing fluid supply line, a first impurity removing mechanism that is provided in the shaft sealing fluid supply line and removes impurities contained in the shaft sealing fluid, and the shaft of the first impurity removing mechanism. A cleaning agent distribution means provided on the upstream side of the sealing fluid distribution direction and through which a cleaning agent for cleaning the shaft sealing fluid supply means distributes, wherein the cleaning agent distribution means includes the cleaning agent Distributing cleaning agent distribution line and the cleaning agent distribution line And a second impurity removing mechanism that removes the circulating impurities, so that when the shaft sealing fluid supply means is cleaned by the cleaning agent, the cleaning agent and the cleaning agent remove the impurities. It is possible to suppress the flow of impurities to the first impurity removal mechanism, and to suppress a decrease in the impurity removal function of the first impurity removal mechanism. As a result, even if the fluid to be compressed (process gas) contains impurities such as polymers, it can be stably used for shaft sealing of the fluid to be compressed with a simple structure.

  According to the compressor which concerns on 2nd invention, the said washing | cleaning agent distribution | circulation means comprises the washing | cleaning agent flow-rate control means which can control the distribution | circulation speed | rate of the said washing | cleaning agent, The compression which concerns on 1st invention In addition to having the same operational effects as the machine, the cleaning agent flow rate control means controls the flow rate of the cleaning agent to be reduced so that impurities removed by the cleaning agent are downstream in the flow direction of the cleaning agent. It is possible to reduce the impact when colliding with the second impurity removal mechanism disposed on the substrate, and to suppress the deterioration of the impurity removal function of the second impurity removal mechanism due to the impact.

  According to the compressor according to the third aspect of the invention, the second impurity removal mechanism includes the first filtration means made of metal and formed in a net shape, whereby the first and second aspects of the invention are provided. In addition to the same operational effects as the compressor according to the above, the first filtration means itself has a predetermined strength, and the impact removed when the impurities removed by the cleaning agent collide with the first filtration means. It can endure, the said 1st filtration means can be used over a long term, and the increase in operation cost can be suppressed.

  According to the compressor which concerns on 4th invention, the said 1st filtration means is about 10 times the impurity removed by the 2nd filtration means arrange | positioned in the fluid distribution direction downstream of the said 1st filtration means. By removing impurities having a large particle size as described above, the same effect as the compressor according to the third invention can be obtained, and impurities having a predetermined particle size or more can be obtained by the first filtering means. The impurities that can be removed and that pass through the first filtering means can be impurities having a particle size smaller than a predetermined particle size, and even if this impurity collides with the second filtering device. The kinetic energy consisting of mass and distribution speed is suppressed, and the impact itself is small. As a result, the second filtering means can be protected from both sides of filter clogging and damage due to impact, can be used for a long time, and an increase in operation cost can be suppressed.

  According to the compressor which concerns on 5th invention, the flow direction downstream side of the said cleaning agent in the said cleaning agent distribution line contacts the flow direction upstream of the said shaft seal fluid of a said 1st impurity removal mechanism. In addition to the same function and effect as the compressors according to the third and fourth inventions, it is possible to suppress the impurities removed by the cleaning agent from directly flowing into the first impurity removal mechanism. This impurity removal mechanism can be used stably over a long period of time, and an increase in operating costs can be suppressed.

  According to the compressor pertaining to the sixth aspect of the invention, the downstream side in the flow direction of the cleaning agent in the cleaning agent distribution line communicates with the downstream side in the flow direction of the shaft sealing fluid of the first impurity removal mechanism. In addition to the same operational effects as the compressors according to the third and fourth inventions, the cleaning agent can be prevented from flowing into the first impurity removal mechanism, and impurities removed by the cleaning agent can be prevented. Collision with the first impurity removal mechanism can be avoided, the first impurity removal mechanism can be used stably over a long period of time, and an increase in operation cost can be suppressed.

  According to the compressor according to the seventh aspect of the invention, the shaft sealing fluid is the fluid to be compressed compressed by the impeller, so that the same action as the compressor according to the first to sixth aspects is achieved. In addition to the effects, there is no need to provide a separate supply source of the shaft sealing fluid, and the compressor itself can be made compact.

  According to the compressor operating method of the eighth aspect of the present invention, the shaft sealing fluid is utilized for the shaft sealing until 24 hours have elapsed since the shaft sealing fluid supply unit was cleaned with the cleaning agent. By allowing the fluid to flow, the impurities that the cleaning agent cleans and removes in the shaft seal fluid supply means can be removed from the shaft seal fluid supply means, and the first due to the impurities can be removed. A decrease in the impurity removal function of the impurity removing means can be suppressed. As a result, even if the fluid to be compressed (process gas) contains impurities such as polymers, it can be stably used for shaft sealing of the fluid to be compressed with a simple structure.

  The best mode for carrying out the compressor and the operating method thereof according to the present invention will be specifically described below based on the embodiments.

Below, the compressor concerning the 1st example of the present invention is explained using a drawing. However, in the compressor according to the first embodiment of the present invention, a part of the fluid to be compressed containing impurities such as a polymer that easily adheres to the wall surface or filter element in the pipe is used for shaft sealing of the fluid to be compressed. ing.
FIG. 1 is a schematic view of a compressor according to a first embodiment of the present invention.

  As shown in FIG. 1, the compressor 50 according to the first embodiment of the present invention includes a casing 11, a shaft body 14 rotatably supported in the casing 11 via bearing portions 12 and 13, and a shaft A plurality of impellers 15 that are attached to the body 14 and rotate to compress the compressed fluid G, and are fixed in the casing 11, projecting toward the shaft body 14, and compressed compressed fluid (compressed fluid) A shaft sealing fluid G1 having the same component as G) is supplied through a compressed fluid supply mechanism 20 described later, and has shaft sealing portions 18 and 19 for sealing the compressed fluid G. Near the impeller 15 in the casing 11, an introduction pipe 16 for introducing the compressed fluid G into the casing, and a discharge pipe 17 for discharging the compressed fluid (shaft sealing fluid) G <b> 1 compressed by the impeller 15; Is provided.

  The compressed fluid supply mechanism (shaft seal fluid supply means) 20 has one end connected to the discharge pipe 17 and the other end branched into two, in the vicinity of the shaft seals 18 and 19 in the casing 11. Each has a feed pipe 21 connected thereto. The feed pipe 21 communicates with the discharge pipe 17, introduces the shaft sealing fluid G1, and communicates with the introduction section 21a. The branching portion branches into two and the shaft sealing fluid G1 flows. 21b and the branching part 21b, gathering into one and collecting part 21c through which the shaft sealing fluid G1 circulates, and communicating with the gathering part 21c and branching into two and the shaft sealing part 18 in the casing 11, 19 and a discharge part 21d for supplying a shaft sealing fluid G1. Therefore, the feed pipe 21 forms a shaft seal fluid supply line through which the shaft seal fluid G1 flows.

  A first impurity removing mechanism 22a, 22b for removing impurities contained in the shaft sealing fluid G1 is provided in parallel at the branch portion 21b of the feed pipe 21. The first impurity removal mechanisms 22a and 22b include first filters 23a and 23b each having a filter that roughly removes (captures) impurities contained in the shaft sealing fluid G1, and the first filters 23a and 23b. Are disposed on the downstream side in the flow direction of the shaft sealing fluid G1, and have second filters 24a and 24b for capturing impurities smaller than those of the first filters 23a and 23b. In addition, the flow of the shaft sealing fluid G1 to the branch portion 21b of the supply pipe 21 is controlled by being positioned upstream and downstream in the flow direction of the shaft sealing fluid G1 of the first impurity removing mechanisms 22a and 22b. First and second control valves 25a, 25b, 26a, and 26b are provided. The discharge portion 21d of the feed pipe 21 is provided with third control valves 27a and 27b for controlling the flow of the shaft sealing fluid G1 to the shaft sealing portions 18 and 19.

  However, the supply pipe 21 described above is provided with a cleaning agent distribution mechanism (cleaning agent distribution means) 30 through which a cleaning agent for cleaning the supply pipe 21 flows. The cleaning agent circulation mechanism 30 is provided in the middle of the connecting pipe (cleaning agent distribution line) 31 that connects the introduction part 21a of the feeding pipe 21 and the gathering part 21c of the feeding pipe 21, and the impurities. And a second impurity removal mechanism 32 that captures and removes the impurity. The second impurity removal mechanism 32 is arranged upstream of the shaft sealing fluid G1 in the flow direction, and is a net-like filter made of a metal that roughly removes (captures) impurities, for example, a size of about 0.025 mm. A first filter (strainer) 33 having a 100-mesh filter capable of trapping impurities, and a first filter disposed on the downstream side in the flow direction of the shaft sealing fluid G1 of the first filter 33. And a second filter 34 that captures and removes impurities having a size of about 0.002 mm, for example. However, the first filter 33 is set so as to capture and remove impurities having a particle size about 10 times larger than the impurities that can be captured and removed by the second filter 34. At this time, if the trapped particle size is different by about 10 times and the flow path reduction due to filter clogging is 1/10, impurities having a kinetic energy of about 1000 times or more can be filtered in advance. A cleaning agent that is positioned upstream and downstream in the flow direction of the shaft sealing fluid G1 of the second impurity removal mechanism 32 in the communication pipe 31 and controls the flow of the shaft sealing fluid G1 to the cleaning agent distribution mechanism 30. Distribution mechanism control valves 35 and 36 are provided, respectively. The cleaning agent flow mechanism control valves 35 and 36 can be controlled to reduce the flow rate of the cleaning agent, and the flow of the shaft seal fluid G1 into the cleaning agent flow mechanism 30 can be controlled.

Here, the operation method of the compressor 50 will be described below.
The first and second control valves 25a, 25b, 26a and 26b are opened, while the cleaning agent distribution mechanism control valves 35 and 36 are closed. Accordingly, the shaft sealing fluid G1 discharged from the discharge pipe 17 is supplied to the shaft sealing portions 18 and 19 by the compressed fluid supply mechanism 20. That is, the shaft sealing fluid G1 includes the introduction portion 21a of the feed pipe 21, the first control valves 25a and 25b, the first filters 23a and 23b, the second filters 24a and 24b, and the second control valve. 26a and 26b, the collecting portion 21c and the discharge portion 21d of the feed pipe 21, and the third control valves 27a and 27b are supplied to the shaft seal portions 18 and 19 of the casing 11, respectively. Thereby, the to-be-compressed fluid G introduced from the introduction pipe 16 can be shaft-sealed in the vicinity of the impeller 15 in the casing 11. The shaft sealing fluid G1 supplied to the shaft sealing portions 18 and 19 flows in a direction away from the impeller 15 and is exhausted from the casing 11 to the atmosphere.

Next, the case where the shaft seal fluid supply mechanism 20 is cleaned with a cleaning agent will be described below.
The first and second control valves 25a, 25b, 26a, and 26b are closed, and the cleaning agent distribution mechanism control valves 35 and 36 are opened. The cleaning agent is introduced from the vicinity of the discharge pipe 17 in the introduction portion 21 a of the supply pipe 21. This cleaning agent is discharged from the vicinity of the casing 11 in the discharge portion 21 of the supply pipe 21 through the introduction portion 21 a of the supply pipe 21, the cleaning agent distribution mechanism 30, and the collecting portion 21 c of the supply pipe 21. At this time, deposits (impurities) such as polymers adhering to the wall surface of the supply pipe 21 are peeled off from the wall surface by the cleaning agent. The impurities are captured by the first filter 33 through the introduction portion 21 a of the feed pipe 21, the cleaning agent distribution mechanism control valve 35, and the communication pipe 31. Impurities that have passed through the first filter 33 are captured and removed by the second filter 34 disposed downstream in the flow direction of the cleaning agent. Thereby, impurities, such as a polymer adhering to the wall surface of the introduction part 21a of the feed pipe 21, can be removed. However, the shaft seal fluid G1 is circulated using the cleaning agent distribution mechanism 30 until 24 hours have passed since the shaft seal fluid supply mechanism 30 was cleaned with the cleaning agent. Thereby, the cleaning agent adhering to the introduction portion 21a of the feeding pipe 21 can be removed, and impurities such as polymers adhering to the wall surface of the feeding pipe 21 are removed from the wall surface of the feeding pipe 21. It can be peeled off and removed.

  Therefore, impurities having a predetermined particle size or more can be removed by the first filter 33, and impurities passing through the first filter 33 have impurities having a particle size smaller than the predetermined particle size. Even if this impurity collides with the second filter 34, the impact itself is small. As a result, the second filter 34 can be used over a long period of time, and an increase in operation cost can be suppressed. Furthermore, in addition to preventing the cleaning agent from flowing into the first impurity removal mechanisms 22a and 22b, it is possible to prevent the impurities removed by the cleaning agent from colliding with the first impurity removal mechanisms 22a and 22b. In addition, the first impurity removal mechanisms 22a and 22b can be used stably over a long period of time, and an increase in operation cost can be suppressed.

  Therefore, according to the compressor 50 according to the first embodiment of the present invention described above, the shaft body 14 rotatably supported by the casing 11, the shaft body 14 is attached to the shaft body 14, and the compressed fluid G is rotated to rotate. An impeller 15 to be compressed, and a shaft sealing fluid supply mechanism 20 that supplies a shaft sealing fluid G1 having the same component as the fluid to be compressed G into the casing 11 so as to seal the fluid G to be compressed. A shaft sealing fluid supply mechanism 20 is provided in the feeding pipe 21 through which the shaft sealing fluid G1 flows, and a first impurity removing mechanism 22a that removes impurities contained in the shaft sealing fluid G1. , 22b, and a cleaning agent distribution mechanism 30 provided on the upstream side in the distribution direction of the shaft sealing fluid G1 of the first impurity removal mechanisms 22a, 22b and through which the cleaning agent for cleaning the shaft sealing fluid supply mechanism 20 flows. The cleaning agent distribution mechanism 30 The shaft sealing fluid supply mechanism 20 is provided by the cleaning agent by including the connecting pipe 31 through which the cleaning agent flows and the second impurity removing mechanism 32 that removes impurities flowing through the connecting pipe 31. When cleaning, the flow of the cleaning agent and impurities removed by the cleaning agent to the first impurity removing mechanisms 22a and 22b is suppressed, and the impurities of the first impurity removing mechanisms 22a and 22b are removed. A decline in function can be suppressed. As a result, even if the fluid to be compressed (process gas) contains impurities such as polymers, it can be stably used for shaft sealing of the fluid to be compressed G with a simple structure.

  Further, the cleaning agent distribution mechanism 30 includes the cleaning agent distribution mechanism control valves 35 and 36 so that the cleaning agent distribution mechanism control valves 35 and 36 are controlled to reduce the cleaning agent distribution speed. Thus, when the impurities removed by the cleaning agent collide with the second impurity removing mechanism 32 disposed on the downstream side in the flow direction of the cleaning agent, the impact can be reduced, and the second impurity due to the impact can be reduced. A decrease in the impurity removal function of the removal mechanism 32 can be suppressed.

  Since the second impurity removing mechanism 32 includes the first filter 33 made of metal and formed in a net shape, the first filter 33 itself has a predetermined strength, and the cleaning is performed. It is possible to withstand the impact when the impurities removed by the agent collide with the first filter 33, the first filter 33 can be used for a long period of time, and the increase in operation cost is suppressed. Can do.

  Since the shaft sealing fluid G1 is the fluid to be compressed G1 compressed by the impeller 15, it is not necessary to separately provide a supply source of the shaft sealing fluid G1, and the compressor 50 itself can be made compact. it can.

  Since the shaft sealing fluid G1 is circulated using the cleaning agent distribution mechanism 30 until 24 hours have elapsed since the shaft sealing fluid supply mechanism 30 was cleaned with the cleaning agent, the cleaning agent was removed from the shaft sealing fluid. Impurities that are cleaned and removed in the supply mechanism 20 can be removed from the shaft-sealed fluid supply mechanism 20, and a decrease in the impurity removal function of the first impurity removal mechanisms 22a and 22b due to the impurities is suppressed. be able to. As a result, even if the fluid to be compressed (process gas) contains impurities such as polymers, it can be stably used for shaft sealing of the fluid to be compressed with a simple structure.

A compressor according to a second embodiment of the present invention will be described below with reference to the drawings. In addition, the compressor which concerns on a present Example changes the washing | cleaning-agent supply mechanism which the compressor which concerns on the 1st Example of this invention mentioned above has, and other than that is the same. Therefore, in the present embodiment, the same members as those in the compressor according to the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.
FIG. 2 is a schematic view of a compressor according to a second embodiment of the present invention.

  As shown in FIG. 2, the compressor 100 according to the second embodiment of the present invention communicates the upstream side in the flow direction of the shaft sealing fluid G1 in the first control valves 25a and 25b and the downstream side thereof. A cleaning agent supply mechanism 60 is provided. The cleaning agent supply mechanism 60 includes connecting pipes (cleaning agent distribution lines) 61a and 61b that connect the upstream side and the downstream side in the flow direction of the shaft sealing fluid G1 of the first control valves 25a and 25b, and the connecting pipe 61a. 61b, the first filter 62a, 62b of the second impurity removal mechanism, and the upstream side and the downstream side of the first filter 62a, 62b in the cleaning agent flow direction. Control valves 63a, 63b, 64a, 64b that can control the flow of the agent and shaft sealing fluid G1). Examples of the first filters 62a and 62b of the second impurity removal mechanism include filters (strainers) made of metal and formed in a net shape.

  Therefore, according to the compressor 100 according to the second embodiment of the present invention, the same effect as that of the compressor according to the first embodiment described above can be obtained, and the impurities removed by the cleaning agent are the first. Direct flow into the second filters 24a and 24b of the impurity removal mechanism can be suppressed, the second filters 24a and 24b can be used stably over a long period of time, and the operation cost is increased. Can be suppressed.

  The first filter 62a, 62b of the second impurity removal mechanism is replaced with a strainer instead of the first filter 62a, 62b of the second impurity removal mechanism, and the non-woven fabric is replaced with a Teflon (registered trademark) binder. It is good also as a filter formed by laminating and sintering. Such a cleaning agent supply mechanism also has the same effects as the cleaning agent supply mechanism 60 described above.

1 is a schematic view of a compressor according to a first embodiment of the present invention. It is the schematic of the compressor which concerns on the 2nd Example of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 11 Casing 12, 13 Bearing part 14 Shaft body 15 Impeller 16 Introducing pipe 17 Discharge pipe 18, 19 Shaft sealing part 20 Shaft sealing fluid supply mechanism 21 Feed pipe 22 1st impurity removal mechanism 23a, 23b 1st filter 24a, 24b Second filter 32 Second impurity removal mechanism 30, 60 Cleaning agent supply mechanism 50, 100 Compressor

Claims (8)

A shaft body rotatably supported by the casing;
An impeller attached to the shaft and rotating to compress the fluid to be compressed;
A shaft sealing fluid supply means for supplying a shaft sealing fluid of the same component as the compressed fluid into the casing so as to seal the compressed fluid.
The shaft seal fluid supply means includes a shaft seal fluid supply line through which the shaft seal fluid flows;
A first impurity removal mechanism that is provided in the shaft seal fluid supply line and removes impurities contained in the shaft seal fluid;
The first impurity removing mechanism is provided on the upstream side in the flow direction of the shaft seal fluid, and includes a cleaning agent flow means for flowing a cleaning agent for cleaning the shaft seal fluid supply means.
The compression means characterized in that the cleaning agent distribution means comprises a cleaning agent distribution line through which the cleaning agent distributes and a second impurity removal mechanism for removing impurities flowing through the cleaning agent distribution line. Machine. A compressor according to claim 1, wherein
The compressor characterized in that the cleaning agent flow means includes a cleaning agent flow rate control means capable of controlling a flow rate of the cleaning agent. A compressor according to claim 1 or claim 2, wherein
The compressor characterized in that the second impurity removing mechanism includes a first filtering means made of metal and formed in a net shape. A compressor according to claim 3, wherein
The first filtration means removes impurities having a particle size about 10 times larger than impurities removed by the second filtration means arranged on the downstream side in the fluid flow direction of the first filtration means. A compressor characterized by being. A compressor according to claim 3 or claim 4, wherein
The compressor in the flow direction downstream of the cleaning agent in the cleaning agent distribution line communicates with the upstream side in the flow direction of the shaft sealing fluid of the first impurity removal mechanism. A compressor according to claim 3 or claim 4, wherein
The compressor, wherein a downstream side of the cleaning agent in the distribution direction of the cleaning agent communicates with a downstream side of the first impurity removing mechanism in the distribution direction of the shaft seal fluid. A compressor according to any one of claims 1 to 6,
The compressor according to claim 1, wherein the shaft sealing fluid is the fluid to be compressed compressed by the impeller. A method for operating a compressor according to any one of claims 1 to 7,
The compressor is characterized in that the shaft seal fluid is circulated using the cleaning agent distribution means until 24 hours have elapsed since the shaft seal fluid supply means was cleaned with the cleaning agent. how to drive.

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