Double-suction three-stage semi-coke gas fan

Abstract

The utility model discloses a double-suction three-stage semi-coke gas fan, which relates to the technical field of fans, and comprises a casing, a supporting end bearing box group, a thrust end bearing box group, a main shaft, an impeller I, an impeller II, a shaft sleeve I and a shaft sleeve II, the supporting end bearing box set and the thrust end bearing box set are arranged on the left side and the right side of the machine shell respectively, the left end and the right end of the main shaft are located in the supporting end bearing box set and the thrust end bearing box set respectively, the first impeller, the second impeller, the first shaft sleeve and the second shaft sleeve are all arranged in the machine shell, and the first impeller, the second impeller, the first shaft sleeve and the second shaft sleeve are connected to the main shaft in series in a staggered mode. Air inlets are arranged below the two sides of the machine shell, and an air outlet flow channel is arranged above the front side of the machine shell. The air compressor has the advantages that the requirements of large flow and high pressure rise are met at the same time, the occupied space area is small, pipelines are correspondingly simplified, and management and maintenance are easier and more convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to a fan technical field, concretely is a double suction three grade semi coke gas fan. BACKGROUND

[0002] Semi coke gas fan is mainly used for the delivery and pressure boost of the gas in the semi coke production process, and semi coke is a kind of special carbon material, which is mainly used in the coking process under high temperature and high pressure, and is mainly applied to the metallurgical industry, especially steelmaking, and its production process usually includes the dry distillation, gasification and chemical treatment of coal, etc., in the production process, coal is heated to high temperature and decomposed into gas and solid matter, and the coal gas contains a certain amount of combustible gas (such as methane, hydrogen, etc.) and non-combustible gas (such as carbon dioxide, nitrogen, etc.), and in the semi coke production process, the semi coke gas fan is used to deliver the generated gas in the production process to a designated place, such as a combustion furnace or a gas storage device, and at the same time, in order to ensure the flowability and stability of the gas in the pipeline, the semi coke gas fan can provide necessary pressure boost to overcome the resistance in the pipeline, and in some production processes, the semi coke gas fan can also maintain the circulating flow of the gas to improve the production efficiency and the benefit rate of the gas, in recent years, the world metallurgical industry has been developing towards modernization with high efficiency, high quality, high benefit, low consumption and low emission, and the requirement for the semi coke gas fan is getting higher and higher, and in the semi coke production process, the gas transportation needs large flow and high pressure boost, and the semi coke gas fan on the market can meet the large flow, but it is difficult to achieve high pressure boost, and the fan that can meet high pressure boost usually has small flow, which greatly reduces the production efficiency of semi coke. SUMMARY

[0003] The utility model discloses a double suction three grade semi coke gas fan.

[0004] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme: a double suction three grade semi coke gas fan, including casing, support end bearing box group, thrust end bearing box group, spindle, impeller no. 1, impeller no. 2, shaft sleeve no. 1 and shaft sleeve no. 2, the spindle passes through the casing and is rotationally connected with the casing, the middle part of the spindle is wrapped in the casing, the support end bearing box group and the thrust end bearing box group are arranged on the left and right sides of the casing respectively, the left and right ends of the spindle fall in the support end bearing box group and the thrust end bearing box group respectively, the impeller no. 1, the impeller no. 2, the shaft sleeve no. 1 and the shaft sleeve no. 2 are all arranged in the casing, and the impeller no. 1, the impeller no. 2 and the shaft sleeve no. 1, the shaft sleeve no. 2 are staggered and connected in series on the spindle, the lower sides of the two sides of the casing are all provided with air inlet, the upper side of the front side of the casing is provided with air outlet flow channel, and the upper side of the casing is also provided with nitrogen filling port, the inside is also provided with baffle, the baffle separates the impeller no. 1 and the impeller no. 2.

[0005] As a further scheme of the utility model: the shaft wall both ends of the main shaft are rotatably connected to the shell through graphite sealing and shaft end sealing, and the shaft end sealing is located on the inner side of the graphite sealing.

[0006] As a further scheme of the utility model: the first impeller is a single suction impeller, and the second impeller is a double suction impeller.

[0007] As a further scheme of the utility model: the number of the first impellers is two, the number of the second impeller is one, two first impellers are arranged on the two sides of the second impeller, and the forms of the two first impellers and the second impeller are both closed backward.

[0008] As a further scheme of the utility model: the support end bearing box group and the thrust end bearing box group are fixedly connected with the shell through bolts.

[0009] Compared with the prior art, the utility model has the beneficial effects that:

[0010] 1、The utility model discloses a driving machine drives the first impeller and the second impeller on the main shaft to rotate at high speed in the shell, gas in the air inlet at the two ends of the fan does work for the first time through the first impeller at the two ends, and then does work for the second time through the second impeller in the middle, so that one lignite gas fan can meet the requirements of large flow and high pressure boosting at the same time, the occupied space area is small, the pipeline is correspondingly simplified, and management and maintenance are more simple and convenient.

[0011] Other advantages, objects and features of the utility model will be described in the subsequent specification to some extent, and to some extent, will be obvious to those skilled in the art based on the study of the following text or can be taught from the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is a front cross section structure schematic view in the utility model embodiment;

[0013] Figure 2 It is a left side structure schematic view in the utility model embodiment.

[0014] In the drawing: 1, support end bearing box group; 2, graphite sealing; 3, nitrogen filling port; 4, shaft end sealing; 5, shell; 6, air outlet flow channel; 7, partition plate; 8, shaft sleeve one; 9, shaft sleeve two; 10, thrust end bearing box group; 11, main shaft; 12, first impeller; 13, second impeller; 14, air inlet; 15, bolt. DETAILED DESCRIPTION

[0015] The specific embodiments of the utility model will be further described below in combination with the drawings, and it should be noted that the description of these embodiments is used to help understand the utility model, but does not constitute limitation to the utility model.

[0016] In addition, the technical features involved in each embodiment of the utility model described below can be combined with each other as long as there is no conflict between them.

[0017] Please refer to the drawings Figure 1 - the drawings Figure 2 The utility model discloses a double-suction three-stage gas fan of coal gas, including casing 5, support end bearing box group 1, thrust end bearing box group 10, main shaft 11, impeller one 12, impeller two 13, shaft sleeve one 8 and shaft sleeve two 9, the main shaft 11 passes through the casing 5 and is connected with the rotation of casing 5, and the main shaft 11 is wrapped in the casing 5, and the support end bearing box group 1 and thrust end bearing box group 10 are arranged on the left and right sides of casing 5 respectively, and the left and right ends of main shaft 11 fall in support end bearing box group 1 and thrust end bearing box group 10 respectively, and impeller one 12, impeller two 13, shaft sleeve one 8 and shaft sleeve two 9 are all arranged in casing 5, and impeller one 12, impeller two 13 and shaft sleeve one 8, shaft sleeve two 9 are staggered and connected on the main shaft 11, and the lower sides of the both sides of casing 5 are provided with air inlet 14, and the upper side of the front side of casing 5 is provided with air outlet flow channel 6, and the upper side of casing 5 is also provided with nitrogen filling port 3, and the inside is also provided with baffle 7, and baffle 7 separates impeller one 12 and impeller two 13.

[0018] In an embodiment of the utility model, the both ends of the shaft wall of main shaft 11 are connected with the rotation of casing 5 through graphite seal 2 and shaft end seal 4, and shaft end seal 4 is located on the inner side of graphite seal 2.

[0019] In an embodiment of the utility model, impeller one 12 is single suction impeller, and impeller two 13 is double suction impeller.

[0020] In an embodiment of the utility model, the number of impeller one 12 is two, and the number of impeller two 13 is one, and two impeller ones 12 are arranged on the left and right sides of impeller two 13, and the forms of two impeller ones 12 and impeller two 13 are both closed type backward.

[0021] In an embodiment of the utility model, support end bearing box group 1 and thrust end bearing box group 10 are fixedly connected with casing 5 through bolt 15.

[0022] Working principle:

[0023] The utility model discloses a drive motor drives the impeller one 12 and impeller two 13 on the main shaft 11 high -speed rotation in the casing 5, and the gas of fan both ends air inlet 14 passes through the impeller one 12 of front and back both ends and does work first time, and then by the second time work of middle impeller two 13, realizes a bit of charcoal gas fan to meet the large flow simultaneously, high pressure, occupies the small space area, and the corresponding simplification of pipeline, and management maintenance is more simple and convenient.

[0024] The above-mentioned front, back, left, right, top and bottom are based on the drawings of the specification Figure 1 As a standard, the side facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0025] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as a limitation on the protection scope of the utility model.

[0026] It should be noted that the device structure of the utility model and the drawings mainly describe the principle of the utility model, and the setting of the power mechanism, power supply system and control system of the device is not completely described in the technical principle of the design, but under the premise that the person skilled in the art understands the principle of the above-mentioned utility model, the specific of the power mechanism, power supply system and control system can be clearly known, and the control mode of the application file is automatically controlled by the controller, and the control circuit of the controller can be realized by simple programming of the person skilled in the art.

[0027] The standard parts used can be purchased from the market, and can be ordered according to the description and drawings, and the specific connection mode of each part adopts the conventional means such as bolts (15), rivets and welding in the prior art, and the mechanical parts and equipment adopt the conventional type in the prior art, and the components known by the person skilled in the art, and the structure and principle thereof can be known by the technical personnel through the technical manual or through the conventional experimental method.

[0028] The embodiments of the utility model are described in detail above in combination with the drawings, but the utility model is not limited to the described embodiments.

[0029] For those skilled in the art, various changes, modifications, replacements and modifications can be made to these embodiments without departing from the principle and spirit of the utility model, and still fall within the protection scope of the utility model.

Claims

1. A double-suction three-stage low-temperature gas fan for a coal gas, comprising a casing (5), a support end bearing box group (1), a thrust end bearing box group (10), a main shaft (11), an impeller I (12), an impeller II (13), a shaft sleeve I (8) and a shaft sleeve II (9), characterized in that: The main shaft (11) transversely passes through the casing (5) and is rotationally connected with the casing (5), the middle part of the main shaft (11) is wrapped in the casing (5), the support end bearing box group (1) and the thrust end bearing box group (10) are respectively arranged on the left and right sides of the casing (5), the left and right ends of the main shaft (11) respectively fall into the support end bearing box group (1) and the thrust end bearing box group (10), the impeller one (12), the impeller two (13), the shaft sleeve one (8) and the shaft sleeve two (9) are all arranged in the casing (5), and the impeller one (12) and the impeller two (13) are staggered and connected with the shaft sleeve one (8) and the shaft sleeve two (9) on the main shaft (11), the casing (5) is provided with the air inlet (14) below the two sides, the front side of the casing (5) is provided with the air outlet flow channel (6) above, and the upper side of the casing (5) is further provided with the nitrogen filling port (3), the inside is further provided with the partition plate (7), and the partition plate (7) separates the impeller one (12) and the impeller two (13).

2. A double-suction three-stage low-pressure blower for a blast furnace gas according to claim 1, characterized in that: The both ends of the shaft wall of the main shaft (11) are rotationally connected with the casing (5) through the graphite seal (2) and the shaft end seal (4), and the shaft end seal (4) is located on the inner side of the graphite seal (2).

3. A double-suction three-stage low-pressure blower for a blast furnace gas according to claim 1, characterized in that: The impeller one (12) is a single suction impeller, and the impeller two (13) is a double suction impeller.

4. A double-suction three-stage low-pressure blower for a blast furnace gas according to claim 1, characterized in that: The number of the impeller one (12) is two, the number of the impeller two (13) is one, the two impeller ones (12) are respectively arranged on the left and right sides of the impeller two (13), and the forms of the two impeller ones (12) and the impeller two (13) are both closed backward.

5. A double-suction three-stage low-pressure blower for a blast furnace gas according to claim 1, characterized in that: The support end bearing box group (1) and the thrust end bearing box group (10) are fixedly connected with the casing (5) through the bolts (15).

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