Cooling conveying pipeline system and two-stage Roots blower countercurrent cooling method

Abstract

The invention relates to the technical field of fluid medium transmission, and provides a cooling conveying pipeline system and a two-stage Roots blower countercurrent cooling method. The cooling conveying pipeline system comprises a monitoring and adjusting assembly. The monitoring and adjusting assembly comprises a shell, an adjusting assembly rotationally installed on the shell, a rotating piece installed on the adjusting assembly and a monitoring piece installed on the shell. The adjusting assembly comprises a driving part which is rotatably mounted on the cover plate and can be pressed to move relative to the cover plate, a rotating seat which is rotatably mounted between the cover plate and the shell, and a first adjusting part which is rotatably supported at one end of the rotating seat and can be rotated by the driving part; the second adjusting part is arranged opposite to the first adjusting part, is rotatably supported at the other end of the rotating seat and can be rotated by the driving part; the moving part is movably jointed in the rotating seat and can be partially jointed in the first adjusting part; the rotating shaft is arranged in the rotating seat and is partially jointed in the moving part; and the elastic part is arranged between the moving part and the rotating shaft.

Description

Technical Field

[0001] The invention relates to the technical field of fluid medium transmission, and in particular to a cooling conveying pipeline system and a countercurrent cooling method for a two-stage Roots blower. Background Art

[0002] The two-stage Roots blower is composed of two Roots blowers connected in series, including a primary blower and a secondary blower. The gas enters the primary blower to increase the pressure, and then enters the secondary blower to continue to increase the pressure after the temperature drops. Due to material problems, during actual operation, there will be differences in the internal leakage of the primary blower and the secondary blower, resulting in the primary blower being stuck due to excessive temperature when the pressure is high. The above problem can be solved by introducing the cooled gas into the primary blower and the secondary blower respectively through a cooling and conveying pipeline system. However, the existing cooling and conveying pipeline system is not convenient for the operator to monitor and adjust the gas flow rate flowing through the pipeline, and it is not convenient for the operator to judge the accumulation of impurities in the pipeline. Summary of the invention

[0003] In view of this, an object of the present invention is to provide a cooling conveying pipeline system and a two-stage Roots blower countercurrent cooling method that can solve or at least alleviate the above-mentioned problems, so as to facilitate the operator to monitor and adjust the gas flow rate flowing through the pipeline, and facilitate the operator to judge the impurity accumulation in the pipeline.

[0004] The technical solution of the present invention is: a cooling delivery pipeline system, which can deliver low-temperature gas to a two-stage Roots blower, includes a monitoring and adjusting component installed on the pipeline; the monitoring and adjusting component can monitor and adjust the gas flow rate flowing through the pipeline, including a shell, an adjusting component rotatably installed on the shell, a rotating member installed on the adjusting component, and a monitoring member installed on the shell; the shell is covered with a cover plate; the adjusting component includes a driving member, a rotating seat, a first adjusting member, a second adjusting member, a moving member, a rotating shaft and an elastic member; the driving member is rotatably installed on the cover plate, and can be pressed to move relative to the The cover plate moves; the rotating seat is rotatably installed between the cover plate and the shell; the first adjusting member is rotatably supported on one end of the rotating seat and can be rotated by the driving member; the second adjusting member is arranged opposite to the first adjusting member, and is rotatably supported on the other end of the rotating seat, and can be rotated by the driving member; the moving member is movably engaged in the rotating seat, and can be partially engaged in the first adjusting member, so that the first adjusting member rotates with the rotation of the rotating seat; the rotating shaft is installed in the rotating seat, and is partially engaged in the moving member; the elastic member is between the moving member and the rotating shaft.

[0005] In some embodiments, after cooling the gas from the first-stage blower of the two-stage Roots blower, a portion of the cooled gas is introduced into the second-stage blower of the two-stage Roots blower, and another portion of the cooled gas is introduced into the first-stage blower; the cooling and conveying pipeline system also includes a first pipeline connected to the outlet of the first-stage blower, a cooler connected to the first pipeline, a second pipeline connected between the cooler and the inlet of the second-stage blower, a third pipeline arranged on one side of the second pipeline, a countercurrent cooling gas control system connected to the third pipeline, a fourth pipeline connected to the countercurrent cooling gas control system, and a first connecting pipe and a second connecting pipe respectively connected to the fourth pipeline, the end of the first connecting pipe away from the fourth pipeline is connected to the first connecting column of the first-stage blower, and the end of the second connecting pipe away from the fourth pipeline is connected to the second connecting column of the first-stage blower; the monitoring and adjustment component is installed on the third pipeline.

[0006] In some embodiments, the driving member is provided with a rotating part, a first cylindrical part, a first non-circular part, a second cylindrical part and a second non-circular part; the rotating part can be pressed to move relative to the cover plate; the first cylindrical part is rotatably mounted on the cover plate; the rotating part is arranged on an axial end of the first cylindrical part, and the first non-circular part is arranged on the other axial end of the first cylindrical part; the second cylindrical part is arranged on the axial end of the first non-circular part away from the first cylindrical part; the second non-circular part is arranged on the axial end of the second cylindrical part away from the first non-circular part.

[0007] In some embodiments, the rotating seat is cylindrical; a first support member is installed at the axial end of the rotating seat adjacent to the cover plate, and a second support member is installed at the other axial end of the rotating seat away from the cover plate, and the rotating seat is rotatably supported on the cover plate and the shell through the first support member and the second support member; the first support member is a hollow cylinder with openings at both ends; the second support member includes a support member body and a support column; the support member body is a hollow cylinder with an opening at one end, and the support column is arranged on the outer side of the closed end of the support member body along the axial direction of the support member body; the support column protrudes from the closed end of the shell, and the rotating member is installed on the axial end of the support column away from the support member body; an installation channel is opened in the center of the rotating seat, and the installation channel passes through the rotating seat along the axial direction of the rotating seat.

[0008] In some embodiments, the rotating seat is provided with a plurality of mounting grooves, which are arranged along the radial direction of the rotating seat and penetrate the rotating seat along the axial direction of the rotating seat; the blades are engaged in the mounting grooves; mounting columns are respectively provided at both ends of the blades; the mounting column of the blade adjacent to the cover plate is movably engaged in the first adjusting member, and the mounting column of the blade away from the cover plate is movably engaged in the second adjusting member; a first support portion is also installed at the axial end of the rotating seat adjacent to the cover plate, the first support portion is located on the inner side of the first support member, and the lower side of the first adjusting member is rotatably supported on the first support portion; a second support portion is also installed at the other axial end of the rotating seat away from the cover plate, the second support portion is located on the inner side of the support member body of the second support member, and the upper side of the second adjusting member is rotatably supported on the second support portion.

[0009] In some embodiments, the first adjusting member is cylindrical; a plurality of first slots are provided on the first adjusting member, and the first slots penetrate the first adjusting member along the axial direction of the first adjusting member; the plurality of first slots are evenly distributed along the circumference of the first adjusting member; a first engaging hole is provided at the center of the first adjusting member, and the first non-circular portion of the driving member can be engaged in the first engaging hole; the distance between one end of the first slot adjacent to the outer periphery of the first adjusting member and the first engaging hole is greater than the distance between the other end of the first slot and the first engaging hole; the mounting column of the blade adjacent to the cover plate is engaged in the first slot; an annular groove is provided on the side of the first adjusting member facing the rotating seat, the annular groove is recessed along the axial direction of the first adjusting member, and the annular groove is located between the first engaging hole and the first slot; a first engaging portion is provided on the side of the annular groove adjacent to the first engaging hole.

[0010] In some embodiments, the second adjusting member is cylindrical and is accommodated in the support member body; the second adjusting member is provided with a plurality of second grooves arranged opposite to the first grooves, and the second grooves penetrate the second adjusting member along the axial direction of the second adjusting member; the plurality of second grooves are evenly distributed along the circumference of the second adjusting member, and the shape of the second grooves is consistent with the shape of the first grooves; a second engaging hole is provided at the center of the second adjusting member; the second non-circular portion of the driving member can be engaged in the second engaging hole; the moving member can be partially engaged in the annular groove to prevent the first adjusting member from rotating relative to the rotating seat.

[0011] In some embodiments, the moving member includes a moving member body, a protrusion and a stop portion; the moving member body is movably engaged in the mounting channel of the rotating seat; the moving member body is a hollow column with openings at both ends; the protrusion is arranged on the axial end of the moving member body facing the first adjusting member, and the inner side of the protrusion is arranged as a second engaging portion, and the second engaging portion can engage with the first engaging portion; the stop portion is arranged on the inner side of the axial end of the moving member body facing the first adjusting member, and the inner diameter of the stop portion is smaller than the inner diameter of the protrusion; the second cylindrical portion of the driving member passes through the moving member and the rotating shaft, and the second non-circular portion protrudes from the axial end of the rotating shaft away from the moving member.

[0012] In some embodiments, the rotating shaft is fixed in the mounting channel of the rotating seat; the rotating shaft is in the shape of a hollow cylinder with openings at both ends, including a rotating shaft body and a boss arranged on the upper end of the rotating shaft body; the rotating shaft body is engaged in the mounting channel; the outer diameter of the boss is smaller than the outer diameter of the rotating shaft body; the elastic member is sleeved on the boss, and the two ends of the elastic member respectively abut against the upper end of the rotating shaft body and the lower end of the stop portion.

[0013] In addition, the present invention also provides a countercurrent cooling method for a two-stage Roots blower, which uses the above-mentioned cooling conveying pipeline system, cools the gas from the first-stage blower of the two-stage Roots blower through the cooling conveying pipeline system, and then introduces a part of the cooled gas into the second-stage blower of the two-stage Roots blower, and another part of the cooled gas into the first-stage blower, comprising the following steps: S1, the gas from the first-stage blower of the two-stage Roots blower enters the cooler through the first pipeline for cooling; S2, a portion of the cooled gas is introduced into the secondary fan via the second pipeline, and the other portion is introduced into the primary fan via the third pipeline; S3. Monitor and adjust the gas flow rate flowing through the third pipeline through a monitoring and adjusting component installed on the third pipeline.

[0014] Compared with the prior art, the present invention has at least the following beneficial effects: 1. The cooling and conveying pipeline system provided by the present invention can facilitate the operator to monitor and adjust the gas flow rate flowing through the pipeline, and facilitate the operator to judge the accumulation of impurities in the pipeline.

[0015] 2. The cooling and conveying pipeline system provided by the present invention can significantly improve the temperature rise problem of the fan, ensure the safe performance of operation, and solve the problem of excessive temperature of the two-stage Roots blower under the premise of maintaining the original processing level and the original gap.

[0016] 3. In the present invention, mounting columns are respectively provided at both ends of the blade. The mounting column of the blade adjacent to the cover plate is movably engaged in the first adjusting member, and the mounting column of the blade away from the cover plate is movably engaged in the second adjusting member. Under the joint action of the first adjusting member and the second adjusting member, it can be ensured that the blade moves smoothly relative to the rotating seat.

[0017] 4. In the present invention, the driving member drives the first adjusting member and the second adjusting member to rotate simultaneously, and the structure is simple.

[0018] 5. In the present invention, the monitoring and regulating component is installed on the third pipeline, which can monitor and regulate the gas flow rate flowing through the third pipeline, and facilitate the operator to judge the impurity accumulation in the third pipeline based on the rotation speed of the corresponding blade state. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A perspective view of a cooling delivery duct system connected to a two-stage Roots blower is shown.

[0020] Figure 2 A schematic diagram of gas flow when the cooling delivery pipeline system delivers low-temperature gas to the primary fan is shown.

[0021] Figure 3 A perspective view of a monitoring and regulating assembly of a cooling delivery piping system is shown.

[0022] Figure 4 Shows Figure 3 An exploded view of the cooling duct system is shown with the blades in a first state.

[0023] Figure 5 Shows Figure 3 A plan view of the cooling delivery piping system is shown.

[0024] Figure 6 Shown along Figure 5 Sectional view along line AA.

[0025] Figure 7 Shows Figure 3 Another exploded view of the cooling delivery duct system is shown with some components omitted.

[0026] Figure 8 Shows Figure 7 A perspective view of a regulating assembly of a cooling delivery piping system is shown.

[0027] Fig. 9 Shows Figure 8 A schematic plan view of the adjustment assembly is shown.

[0028] Fig.10 Shown along Fig. 9Cross-sectional view along line BB in FIG.

[0029] Fig.11 Shows Figure 8 Exploded view of the adjustment assembly shown.

[0030] Fig.12 Shows Figure 8 A perspective view of a first adjustment member of the adjustment assembly is shown.

[0031] Fig.13 Shows Figure 8 A perspective view of the moving parts of the adjustment assembly is shown.

[0032] Fig.14 Shows Fig.13 A perspective view of the moving part shown in another direction.

[0033] Fig.15 Shows Figure 3 A perspective view of a portion of a cooling duct system is shown with the blades in a second state.

[0034] Fig.16 Shows Fig.15 A three-dimensional view of some components shown in another direction.

[0035] Description of reference numerals: 100-cooling delivery pipeline system; 1-first pipeline; 2-cooler; 3-second pipeline; 4-third pipeline; 5-monitoring and adjusting assembly; 51-housing; 511-cover plate; 52-adjusting assembly; 21-driving member; 211-rotating portion; 212-first cylindrical portion; 213-first non-circular portion; 214-second cylindrical portion; 215-second non-circular portion; 22-first adjusting member; 222-first slot; 223-annular slot; 224-first engaging portion; 225-first engaging hole; 23-rotating seat; 231-first supporting member; 232-second supporting member; 321-supporting member body; 322-supporting column; 233-blade; 24-second adjusting member; 2 42-second slot; 243-second engaging hole; 25-moving member; 251-moving member body; 252-protrusion; 253-second engaging portion; 254-stop portion; 26-rotating shaft; 61-rotating shaft body; 62-convex column; 27-elastic member; 31-rotating member; 32-monitoring member; 6-countercurrent cooling gas control system; 7-fourth pipeline; 8-first connecting pipe; 81-first branch pipe; 82-second branch pipe; 9-second connecting pipe; 91-third branch pipe; 92-fourth branch pipe; 200-two-stage Roots blower; 201-first-stage blower; 202-second-stage blower; 203-first-stage blower inlet; 204-first-stage blower outlet; 205-first connecting column; 206-second connecting column. DETAILED DESCRIPTION

[0036] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0037] It should be noted that the following detailed descriptions are all illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0038] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit exemplary embodiments according to the present invention. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0039] In the present invention, terms such as "upper", "lower", "left", "right", "front", "back", "vertical", "horizontal", "side", "bottom", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are relational words determined only for the convenience of describing the structural relationships of the various parts or elements of the present invention, and do not specifically refer to any part or element in the present invention and should not be understood as limitations on the present invention.

[0040] In the present invention, terms such as "fixed connection", "connected", "connection", etc. should be understood in a broad sense, indicating that it can be fixedly connected, integrally connected or detachably connected; it can be directly connected or indirectly connected through an intermediate medium. Relevant scientific research or technical personnel in this field can determine the specific meanings of the above terms in the present invention according to specific circumstances, and they should not be understood as limiting the present invention.

[0041] Also refer to Figure 1 and Figure 2The cooling and conveying pipeline system 100 provided by the present invention can convey low-temperature gas to the two-stage Roots blower 200. The two-stage Roots blower 200 includes a primary blower 201 and a secondary blower 202. After the cooling and conveying pipeline system 100 cools the gas from the primary blower 201, a part of the cooled gas is introduced into the secondary blower 202, and the other part of the cooled gas is introduced into the primary blower 201 to prevent the primary blower 201 from being locked due to excessive temperature. The primary blower 201 is provided with a primary blower inlet 203, a primary blower outlet 204, and a first connecting column 205 and a second connecting column 206 respectively arranged on both sides of the primary blower outlet 204, wherein the first connecting column 205 and the second connecting column 206 are respectively connected to the internal space of the primary blower 201. Preferably, two first connecting columns 205 and two second connecting columns 206 are provided on the primary blower 201. The primary fan inlet 203, the primary fan outlet 204 and the secondary fan 202 may all adopt existing structures in the prior art, which will not be described in detail herein.

[0042] The cooling delivery pipeline system 100 includes a first pipeline 1 connected to the primary fan outlet 204, a cooler 2 connected to the first pipeline 1, a second pipeline 3 connected between the cooler 2 and the inlet of the secondary fan 202, a third pipeline 4 arranged on one side of the second pipeline 3, a monitoring and regulating component 5 installed on the third pipeline 4, a counter-flow cooling gas control system 6 connected to the third pipeline 4, a fourth pipeline 7 connected to the counter-flow cooling gas control system 6, and a first connecting pipe 8 and a second connecting pipe 9 respectively connected to the fourth pipeline 7, wherein the end of the first connecting pipe 8 away from the fourth pipeline 7 is connected to the first connecting column 205 of the primary fan 201, and the end of the second connecting pipe 9 away from the fourth pipeline 7 is connected to the second connecting column 206 of the primary fan 201. Preferably, the first connecting pipe 8 includes a first branch pipe 81 and a second branch pipe 82, and the ends of the first branch pipe 81 and the second branch pipe 82 away from the fourth pipeline 7 are respectively connected to the two first connecting columns 205. The second connecting pipe 9 includes a third branch pipe 91 and a fourth branch pipe 92, and the ends of the third branch pipe 91 and the fourth branch pipe 92 away from the fourth pipeline 7 are respectively connected to two second connecting columns 206. Preferably, valves are respectively provided in the first branch pipe 81, the second branch pipe 82, the third branch pipe 91 and the fourth branch pipe 92, and the valves are used to control the reverse flow gas from the corresponding branch pipes to enter the primary fan 201 according to the operation conditions. It is also preferred that a temperature transmitter, a filter, a flow meter and a check valve are provided in the countercurrent cooling gas control system 6; after the gas passes through the temperature transmitter, when the temperature is higher than the ideal temperature, a signal will be transmitted to the electric valve at the cooling water inlet of the cooler 2, and the electric valve will be used to control the inlet cooling water flow, and the cooling water volume of the cooler 2 will be increased to further reduce the gas temperature; the gas is filtered through the filter to ensure the cleanliness of the gas entering the primary fan 201; when the filtered gas passes through the flow meter, when the flow meter shows that the flow exceeds the specified value, the flow is controlled by the valve on the flow meter to ensure that the gas entering the primary fan 201 in the reverse direction is not too large, so as not to affect the normal operation of the primary fan 201; when the countercurrent gas finally flows to the primary fan 201 through the check valve, the fluid pressure on the inlet side is greater than the fluid pressure on the outlet side. At this time, the check valve is opened and the fluid can flow smoothly. If the gas flows in the reverse direction, that is, the fluid pressure on the outlet side is greater than the fluid pressure on the inlet side, the check valve will be closed, thereby preventing the reverse flow of the fluid.The first-stage fan 201 inhales the imported normal temperature gas. After the pressure is increased in the first-stage fan 201, the high-temperature gas (i.e., the outlet high-temperature gas) from the first-stage fan 201 enters the cooler 2 through the first pipeline 1 for cooling. A part of the cooled low-temperature gas enters the second-stage fan 202 through the second pipeline 3, and another part of the cooled low-temperature gas enters the countercurrent cooling gas control system 6 through the third pipeline 4. When the other part of the cooled low-temperature gas passes through the third pipeline 4, the monitoring and regulating component 5 installed on the third pipeline 4 can monitor and regulate the gas flow rate flowing through the third pipeline 4. After flowing through the countercurrent cooling gas control system 6, the cooled low-temperature gas (i.e., the countercurrent low-temperature gas) enters the first connecting pipe 8 and the second connecting pipe 9 through the fourth pipeline 7, and is finally introduced into the casing of the first-stage fan 201 through the first connecting column 205 and the second connecting column 206, so as to cool the first-stage fan 201, thereby preventing the temperature of the first-stage fan 201 from being too high and ensuring the normal operation of the two-stage Roots blower 200.

[0043] Also refer to Figures 3 to 7 The monitoring and adjusting component 5 includes a shell 51, an adjusting component 52 rotatably mounted on the shell 51, a rotating member 31 mounted on the adjusting component 52, and a monitoring component 32 mounted on the shell 51. The shell 51 is roughly in the shape of a hollow cylinder with one end open, and both sides are respectively mounted on the third pipe 4. The open end cover of the shell 51 is provided with a cover plate 511. The monitoring component 32 is mounted on the outer side of the closed end of the shell 51 and is located on one side of the rotating member 31. In this embodiment, a protrusion is installed on the rotating member 31, and the monitoring component 32 monitors the rotation speed of the rotating member 31 through the protrusion.

[0044] Also refer to Figures 8 to 10 The adjusting assembly 52 includes a driving member 21, a rotating seat 23, a first adjusting member 22, a second adjusting member 24, a moving member 25, a rotating shaft 26 and an elastic member 27. The driving member 21 is rotatably mounted on the cover plate 511 and can be pressed to move relative to the cover plate 511. The rotating seat 23 is rotatably mounted between the cover plate 511 and the housing 51. The first adjusting member 22 is rotatably supported on one end of the rotating seat 23 and can be rotated by the driving member 21. The second adjusting member 24 is arranged opposite to the first adjusting member 22 and is rotatably supported on the other end of the rotating seat 23 and can be rotated by the driving member 21. The moving member 25 is movably engaged in the rotating seat 23 and can be partially engaged in the first adjusting member 22, so that the first adjusting member 22 rotates with the rotation of the rotating seat 23. The rotating shaft 26 is mounted in the rotating seat 23 and is partially engaged in the moving member 25. The elastic member 27 is between the moving member 25 and the rotating shaft 26. Preferably, the elastic member 27 is a spring.

[0045] Also refer to Fig.11 , Fig.12 , Fig.15 and Fig.16 , the driving member 21 is provided with a rotating portion 211, a first cylindrical portion 212, a first non-circular portion 213, a second cylindrical portion 214 and a second non-circular portion 215. The rotating portion 211 can be pressed to move relative to the cover plate 511. The first cylindrical portion 212 is rotatably mounted on the cover plate 511. The rotating portion 211 is arranged on an axial end of the first cylindrical portion 212, and the first non-circular portion 213 is arranged on the other axial end of the first cylindrical portion 212. The second cylindrical portion 214 is arranged on the axial end of the first non-circular portion 213 away from the first cylindrical portion 212. The second non-circular portion 215 is arranged on the axial end of the second cylindrical portion 214 away from the first non-circular portion 213. Preferably, the first non-circular portion 213 and the second non-circular portion 215 are respectively regular hexagonal prisms. The rotating portion 211 can be pressed to move relative to the cover plate 511, and then when it is rotated, the driving member 21 can rotate relative to the rotating seat 23.

[0046] The rotating seat 23 is roughly cylindrical. A first support member 231 is installed at the axial end of the rotating seat 23 adjacent to the cover plate 511, and a second support member 232 is installed at the other axial end of the rotating seat 23 away from the cover plate 511. The rotating seat 23 is rotatably supported on the cover plate 511 and the housing 51 through the first support member 231 and the second support member 232. Preferably, the first support member 231 is roughly a hollow cylinder with openings at both ends, and is rotatably installed on the cover plate 511 through a bearing. The second support member 232 includes a support member body 321 and a support column 322. The support member body 321 is roughly a hollow cylinder with an opening at one end, and the support column 322 is arranged on the outer side of the closed end of the support member body 321 along the axial direction of the support member body 321. The support column 322 is rotatably installed on the closed end of the housing 51 through a bearing. The support column 322 protrudes from the closed end of the shell 51, and the rotating member 31 is installed on the axial end of the support column 322 away from the support member body 321. A mounting channel is opened at the center of the rotating seat 23, and the mounting channel penetrates the rotating seat 23 along the axial direction of the rotating seat 23. Preferably, the mounting channel is a non-circular channel. More preferably, the mounting channel is a hexagonal channel. A plurality of mounting grooves are provided on the rotating seat 23, and the plurality of mounting grooves are arranged along the radial direction of the rotating seat 23 and penetrate the rotating seat 23 along the axial direction of the rotating seat 23. The blade 233 is engaged in the mounting groove. Mounting columns are respectively provided at both ends of the blade 233. The mounting column of the blade 233 adjacent to the cover plate 511 is movably engaged in the first adjusting member 22, and the mounting column of the blade 233 away from the cover plate 511 is movably engaged in the second adjusting member 24. A first support portion is also installed at the axial end of the rotating seat 23 adjacent to the cover plate 511. The first support portion is located inside the first support member 231, and the lower side of the first adjusting member 22 is rotatably supported on the first support portion. A second support portion is also installed at the other axial end of the rotating seat 23 away from the cover plate 511. The second support portion is located inside the support member body 321 of the second support member 232, and the upper side of the second adjusting member 24 is rotatably supported on the second support portion. When the rotating portion 211 is pressed and then rotated, the driving member 21 can drive the first adjusting member 22 and the second adjusting member 24 to rotate relative to the rotating seat 23, so as to drive the blade 233 to move relative to the rotating seat 23.

[0047] The first adjusting member 22 is roughly cylindrical. The first adjusting member 22 is provided with a plurality of first slots 222, which penetrate the first adjusting member 22 along the axial direction of the first adjusting member 22. The plurality of first slots 222 are evenly distributed along the circumference of the first adjusting member 22. In the present embodiment, the first slot 222 is roughly arc-shaped. A first engaging hole 225 is provided at the center of the first adjusting member 22. In the present embodiment, the first engaging hole 225 is a hexagonal hole. The first non-circular portion 213 of the driving member 21 can be engaged in the first engaging hole 225. The distance between one end of the first slot 222 adjacent to the outer periphery of the first adjusting member 22 and the first engaging hole 225 is greater than the distance between the other end of the first slot 222 and the first engaging hole 225. The mounting post of the blade 233 adjacent to the cover plate 511 is engaged in the first slot 222. A ring groove 223 is provided on one side of the first adjusting member 22 facing the rotating seat 23. The ring groove 223 is recessed along the axial direction of the first adjusting member 22 and is located between the first engaging hole 225 and the first slot 222. A first engaging portion 224 is provided on one side of the ring groove 223 adjacent to the first engaging hole 225. Preferably, the first engaging portion 224 is a toothed portion provided along the axial direction of the ring groove 223.

[0048] The second adjusting member 24 is roughly cylindrical and is accommodated in the supporting member body 321. The second adjusting member 24 is provided with a plurality of second slots 242 arranged opposite to the first slot 222, and the second slots 242 penetrate the second adjusting member 24 along the axial direction of the second adjusting member 24. The plurality of second slots 242 are evenly distributed along the circumference of the second adjusting member 24. In the present embodiment, the shape of the second slot 242 is consistent with the shape of the first slot 222, and a repeated description is not given here. A second engaging hole 243 is provided at the center of the second adjusting member 24. In the present embodiment, the second engaging hole 243 is a hexagonal hole. The second non-circular portion 215 of the driving member 21 can be engaged in the second engaging hole 243. The moving member 25 can be partially engaged in the annular groove 223 to prevent the first adjusting member 22 from rotating relative to the rotating seat 23. When the rotating portion 211 of the driving member 21 is pressed to move downward relative to the cover plate 511, the first non-circular portion 213 of the driving member 21 engages in the first engagement hole 225, and the second non-circular portion 215 of the driving member 21 engages in the second engagement hole 243, and at the same time the moving member 25 disengages from the annular groove 223, so that the first adjusting member 22 and the second adjusting member 24 can rotate with the rotation of the driving member 21.

[0049] Also refer to Fig.13 and Fig.14, the moving member 25 comprises a moving member body 251, a projection 252 and a stopper 254. The moving member body 251 is movably engaged in the mounting channel of the rotating seat 23. The moving member body 251 is roughly a hollow column with two ends open. The projection 252 is arranged on the axial end of the moving member body 251 towards the first adjusting member 22. Preferably, the projection 252 is roughly annular, and the inner side of the projection 252 is set to the second engagement portion 253, which can engage with the first engagement portion 224. The stopper 254 is arranged on the inner side of the moving member body 251 towards the axial end of the first adjusting member 22. The inner diameter of the stopper 254 is smaller than the inner diameter of the projection 252. The second cylindrical portion 214 of the driving member 21 passes through the moving member 25 and the rotating shaft 26, and the second non-circular portion 215 protrudes from the axial end of the rotating shaft 26 away from the moving member 25.

[0050] The rotating shaft 26 is fixed in the installation channel of the rotating seat 23. The rotating shaft 26 is generally in the shape of a hollow cylinder with two ends open, and includes a rotating shaft body 61 and a boss 62 arranged on the upper end of the rotating shaft body 61. The rotating shaft body 61 is engaged in the installation channel of the rotating seat 23. The outer diameter of the boss 62 is smaller than the outer diameter of the rotating shaft body 61. The elastic member 27 is sleeved on the boss 62, and the two ends of the elastic member 27 are respectively against the upper end of the rotating shaft body 61 and the lower end of the stopper 254.

[0051] The monitoring member 32 can detect the rotation speed of the rotating seat 23 and the blades 233 under the action of the cooled gas by monitoring the rotation speed of the rotating member 31. Based on the rotation speed of the corresponding blade 233, the operator can determine the impurity accumulation in the third pipe 4.

[0052] When it is necessary to adjust the gas flow rate flowing through the third pipeline 4, the rotating part 211 of the driving member 21 is pressed, so that the first non-circular part 213 is engaged in the first engaging hole 225 of the first adjusting member 22, and the second non-circular part 215 is engaged in the second engaging hole 243 of the second adjusting member 24. At the same time, the lower end of the first non-circular part 213 pushes against the upper end of the stopper 254 of the moving member 25, so that the moving member 25 moves downward, and the second engaging part 253 of the moving member 25 is disengaged from the first engaging part 224 of the first adjusting member 22. At this time, the rotating part 211 is rotated, and the rotating member 31 is kept stationary (that is, the rotating seat 23 is kept stationary). The adjusting member 22 and the second adjusting member 24 simultaneously drive the blade 233 to move relative to the rotating seat 23; when the blade 233 is adjusted to the desired state, the rotating portion 211 is released, and the movable member 25 moves upward under the action of the elastic member 27, the second engaging portion 253 engages with the first engaging portion 224, and the movable member 25 drives the driving member 21 to move upward through the stop portion 254, so that the first non-circular portion 213 disengages from the first engaging hole 225, and the second non-circular portion 215 disengages from the second engaging hole 243; the blade 233 rotates under the action of the cooled gas, thereby driving the rotating seat 23 and the rotating member 31 to rotate, and the monitoring member 32 monitors the rotation speed of the rotating member 31.

[0053] In addition, the present invention also provides a countercurrent cooling method for a two-stage Roots blower, which uses the above-mentioned cooling conveying pipeline system, cools the gas from the first-stage blower of the two-stage Roots blower through the cooling conveying pipeline system, and then introduces a part of the cooled gas into the second-stage blower of the two-stage Roots blower, and another part of the cooled gas into the first-stage blower, comprising the following steps: S1, the gas from the first-stage blower of the two-stage Roots blower enters the cooler through the first pipeline for cooling; S2, a portion of the cooled gas is introduced into the secondary fan via the second pipeline, and the other portion is introduced into the primary fan via the third pipeline; S3. Monitor and adjust the gas flow rate flowing through the third pipeline through a monitoring and adjusting component installed on the third pipeline.

[0054] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A cooling delivery pipeline system capable of delivering low-temperature gas to a two-stage Roots blower, characterized in that: The invention comprises a monitoring and adjusting component mounted on a pipeline; the monitoring and adjusting component can monitor and adjust the flow rate of gas flowing through the pipeline, and comprises a shell, an adjusting component rotatably mounted on the shell, a rotating member mounted on the adjusting component, and a monitoring member mounted on the shell; a cover plate is provided on the shell; the adjusting component comprises a driving member, a rotating seat, a first adjusting member, a second adjusting member, a moving member, a rotating shaft and an elastic member; the driving member is rotatably mounted on the cover plate and can be pressed to move relative to the cover plate; the rotating seat is rotatably mounted between the cover plate and the shell; the first adjusting member is rotatably supported on one end of the rotating seat and can be rotated by the driving member; The second adjusting member is arranged opposite to the first adjusting member, and is rotatably supported on the other end of the rotating seat, and can be rotated by the driving member; the moving member is movably engaged in the rotating seat, and can be partially engaged in the first adjusting member, so that the first adjusting member rotates with the rotation of the rotating seat; the rotating shaft is installed in the rotating seat, and is partially engaged in the moving member; the elastic member is between the moving member and the rotating shaft.

2. The cooling conveying pipeline system according to claim 1, characterized in that: After cooling the gas from the primary fan of the two-stage Roots blower, a portion of the cooled gas is introduced into the secondary fan of the two-stage Roots blower, and another portion of the cooled gas is introduced into the primary fan; the cooling and conveying pipeline system also includes a first pipeline connected to the outlet of the primary fan, a cooler connected to the first pipeline, a second pipeline connected between the cooler and the inlet of the secondary fan, a third pipeline arranged on one side of the second pipeline, a countercurrent cooling gas control system connected to the third pipeline, a fourth pipeline connected to the countercurrent cooling gas control system, and a first connecting pipe and a second connecting pipe respectively connected to the fourth pipeline, the end of the first connecting pipe away from the fourth pipeline is connected to the first connecting column of the primary fan, and the end of the second connecting pipe away from the fourth pipeline is connected to the second connecting column of the primary fan; the monitoring and adjustment component is installed on the third pipeline.

3. The cooling conveying pipeline system according to claim 1, characterized in that: The driving member is provided with a rotating part, a first cylindrical part, a first non-circular part, a second cylindrical part and a second non-circular part; the rotating part can be pressed to move relative to the cover plate; the first cylindrical part is rotatably mounted on the cover plate; the rotating part is arranged on an axial end of the first cylindrical part, and the first non-circular part is arranged on the other axial end of the first cylindrical part; the second cylindrical part is arranged on the axial end of the first non-circular part away from the first cylindrical part; the second non-circular part is arranged on the axial end of the second cylindrical part away from the first non-circular part.

4. The cooling conveying pipeline system according to claim 3, characterized in that: The rotating seat is cylindrical; a first support is installed at the axial end of the rotating seat adjacent to the cover plate, and a second support is installed at the other axial end of the rotating seat away from the cover plate, and the rotating seat is rotatably supported on the cover plate and the shell through the first support and the second support; the first support is a hollow cylinder with openings at both ends; the second support includes a support body and a support column; the support body is a hollow cylinder with an opening at one end, and the support column is arranged on the outer side of the closed end of the support body along the axial direction of the support body; the support column protrudes from the closed end of the shell, and the rotating member is installed on the axial end of the support column away from the support body; a mounting channel is opened at the center of the rotating seat, and the mounting channel passes through the rotating seat along the axial direction of the rotating seat.

5. The cooling conveying pipeline system according to claim 4, characterized in that: The rotating seat is provided with a plurality of mounting grooves, which are arranged along the radial direction of the rotating seat and penetrate the rotating seat along the axial direction of the rotating seat; the blades are engaged in the mounting grooves; mounting columns are respectively provided at both ends of the blades; the mounting column of the blade adjacent to the cover plate is movably engaged in the first adjusting member, and the mounting column of the blade away from the cover plate is movably engaged in the second adjusting member; a first support portion is also installed at the axial end of the rotating seat adjacent to the cover plate, the first support portion is located on the inner side of the first support member, and the lower side of the first adjusting member is rotatably supported on the first support portion; a second support portion is also installed at the other axial end of the rotating seat away from the cover plate, the second support portion is located on the inner side of the support member body of the second support member, and the upper side of the second adjusting member is rotatably supported on the second support portion.

6. The cooling conveying pipeline system according to claim 5, characterized in that: The first adjusting member is cylindrical; a plurality of first slots are provided on the first adjusting member, and the first slots penetrate the first adjusting member along the axial direction of the first adjusting member; the plurality of first slots are evenly distributed along the circumference of the first adjusting member; a first engaging hole is provided at the center of the first adjusting member, and the first non-circular portion of the driving member can be engaged in the first engaging hole; the distance between one end of the first slot adjacent to the outer periphery of the first adjusting member and the first engaging hole is greater than the distance between the other end of the first slot and the first engaging hole; the mounting column of the blade adjacent to the cover plate is engaged in the first slot; an annular groove is provided on the side of the first adjusting member facing the rotating seat, and the annular groove is recessed along the axial direction of the first adjusting member, and the annular groove is located between the first engaging hole and the first slot; a first engaging portion is provided on the side of the annular groove adjacent to the first engaging hole.

7. The cooling conveying pipeline system according to claim 6, characterized in that: The second adjusting member is cylindrical and is accommodated in the supporting member body; the second adjusting member is provided with a plurality of second slots arranged opposite to the first slots, and the second slots penetrate the second adjusting member along the axial direction of the second adjusting member; the plurality of second slots are evenly distributed along the circumference of the second adjusting member, and the shape of the second slots is consistent with the shape of the first slots; a second engaging hole is provided in the center of the second adjusting member; the second non-circular portion of the driving member can be engaged in the second engaging hole; the moving member can be partially engaged in the annular groove to prevent the first adjusting member from rotating relative to the rotating seat.

8. The cooling conveying pipeline system according to claim 7, characterized in that: The moving member includes a moving member body, a protrusion and a stop portion; the moving member body is movably engaged in the mounting channel of the rotating seat; the moving member body is a hollow column with openings at both ends; the protrusion is arranged on the axial end of the moving member body facing the first adjusting member, and the inner side of the protrusion is arranged as a second engaging portion, and the second engaging portion can engage with the first engaging portion; the stop portion is arranged on the inner side of the axial end of the moving member body facing the first adjusting member, and the inner diameter of the stop portion is smaller than the inner diameter of the protrusion; the second cylindrical portion of the driving member passes through the moving member and the rotating shaft, and the second non-circular portion protrudes from the axial end of the rotating shaft away from the moving member.

9. The cooling conveying pipeline system according to claim 8, characterized in that: The rotating shaft is fixed in the mounting channel of the rotating seat; the rotating shaft is in the shape of a hollow cylinder with openings at both ends, and comprises a rotating shaft body and a boss arranged on the upper end of the rotating shaft body; the rotating shaft body is engaged in the mounting channel; the outer diameter of the boss is smaller than the outer diameter of the rotating shaft body; the elastic member is sleeved on the boss, and the two ends of the elastic member respectively abut against the upper end of the rotating shaft body and the lower end of the stopper.

10. A two-stage Roots blower countercurrent cooling method, characterized in that: The cooling conveying pipeline system according to any one of claims 1 to 9 is used, wherein after the gas from the primary blower of the two-stage Roots blower is cooled by the cooling conveying pipeline system, a part of the cooled gas is introduced into the secondary blower of the two-stage Roots blower, and another part of the cooled gas is introduced into the primary blower, comprising the following steps: S1, the gas from the first-stage blower of the two-stage Roots blower enters the cooler through the first pipeline for cooling; S2, a portion of the cooled gas is introduced into the secondary fan via the second pipeline, and the other portion is introduced into the primary fan via the third pipeline; S3. Monitor and adjust the gas flow rate flowing through the third pipeline through a monitoring and adjusting component installed on the third pipeline.

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