Ammonia compressor unit and device

Abstract

The utility model discloses an ammonia compressor unit and device, and relates to the technical field of ammonia compression equipment. The ammonia compressor unit comprises a base, a compressor, a driver, an oil storage assembly and a cooling assembly, the base comprises a supporting platform, a containing space is formed in the base, and the containing space is located below the supporting platform; the compressor and the driving machine are respectively arranged above the supporting platform, the compressor comprises at least two impellers, and the driving machine drives each impeller to rotate; the oil storage assembly and the cooling assembly are arranged in the containing space. The ammonia compressor unit is compact in structure, small in size and wider in application range.

Description

Technical Field

[0001] This application relates to the field of ammonia compression equipment technology, and in particular to an ammonia compressor unit and apparatus. Background Technology

[0002] Ammonia compressors are a key production equipment commonly used in the chemical industry and are currently widely used in the industry.

[0003] The existing ammonia compressor units have a low degree of integration, resulting in a large overall structural size. Utility Model Content

[0004] In view of this, this application provides an ammonia compressor unit and apparatus, which aims to solve one of the technical problems in the prior art.

[0005] To achieve the above objectives, the technical solution adopted in this application is as follows:

[0006] In a first aspect, embodiments of this application provide an ammonia compressor unit, comprising:

[0007] A base, including a support platform, wherein the base forms a receiving space located below the support platform;

[0008] A compressor and a drive motor are disposed above the support platform. The compressor includes at least two impellers, and the drive motor drives each impeller to rotate.

[0009] The oil storage assembly and the cooling assembly are respectively located within the containment space.

[0010] In one embodiment of the first aspect, the ammonia compressor unit further includes a transmission assembly, the transmission assembly including a coupling, a primary drive shaft and a plurality of secondary drive shafts;

[0011] Each of the secondary drive shafts has two drive ends, which are connected to the impeller. The secondary drive shaft and the primary drive shaft are connected in a cooperative manner. The coupling connects the primary drive shaft and the output shaft of the drive motor.

[0012] In one embodiment of the first aspect, the primary drive shaft and the secondary drive shaft extend along a first direction, and the plurality of secondary drive shafts are spaced apart along a second direction, wherein the first direction and the second direction are perpendicular.

[0013] In one embodiment of the first aspect, the drive and the compressor are arranged along the first direction.

[0014] In one embodiment of the first aspect, the oil storage assembly and the cooling assembly are spaced apart along the first direction, the second direction, or the third direction, wherein the first direction, the second direction, and the third direction are perpendicular to each other.

[0015] In one embodiment of the first aspect, the oil storage assembly includes at least one oil tank, and the cooling assembly includes an interstage cooler and an aftercooler;

[0016] The oil tank, the intercooler, and the aftercooler are all cylindrical in shape.

[0017] In one embodiment of the first aspect, when the oil storage assembly and the cooling assembly are spaced apart along the first direction, the oil tank, the intercooler and the aftercooler extend along the first direction respectively, and the intercooler and the aftercooler are spaced apart along the second direction.

[0018] In one embodiment of the first aspect, when the oil storage assembly and the cooling assembly are spaced apart along the second direction, the oil tank, the intercooler and the aftercooler extend along the second direction respectively, and the intercooler and the aftercooler are spaced apart along the second direction.

[0019] In one embodiment of the first aspect, the base further includes a plurality of support plates spaced apart along the first direction or the second direction. The support plates are connected to the lower part of the support platform and form the receiving space. Each support plate has a through hole, through which the oil tank, the interstage cooler or the aftercooler passes.

[0020] Secondly, embodiments of this application also provide an ammonia compression device, including the ammonia compressor unit in any of the above embodiments.

[0021] Compared with the prior art, the beneficial effects of this application are as follows: This application proposes an ammonia compressor unit, including a base, a compressor, a drive motor, an oil storage component and a cooling component. The base includes a support platform and has a receiving space, which is located below the support platform. The compressor and the drive motor are located above the support platform. The compressor includes at least two impellers, and the drive motor drives each impeller to rotate. The oil storage component and the cooling component are respectively located in the receiving space. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 A schematic diagram of the structure of an ammonia compressor unit in the relevant technology is shown;

[0024] Figure 2 This application shows one of the structural schematic diagrams of an ammonia compressor unit in some embodiments;

[0025] Figure 3 It shows Figure 2 A top view of the ammonia compressor unit;

[0026] Figure 4 This is shown as a second schematic diagram of the structure of an ammonia compressor unit in some embodiments of this application;

[0027] Figure 5 It shows Figure 4 A top view of the ammonia compressor unit.

[0028] Key component symbols: 100-Ammonia compressor unit; 110-Base; 111-Support platform; 112-Support plate; 1121-Through hole; 120-Compressor; 121-Impeller; 130-Driver; 141-Oil tank; 151-Interstage cooler; 152-Aftercooler; 113-Accommodation space; 160-Transmission assembly; 161-Coupling; 162-First stage drive shaft; 163-Second stage drive shaft; 1631-Transmission end; D1-First direction; D2-Second direction; D3-Third direction. Detailed Implementation

[0029] The embodiments of this application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0030] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0031] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0032] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0033] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0034] like Figure 1As shown, the base of the ammonia compressor unit in the related technology is located at the bottom of the unit, with the oil station and drive motor bases respectively mounted on the base, and the drive motor mounted on the motor base. Compressor unit one and compressor unit two are installed in series on the oil station. The rotors of the drive motor, compressor unit one, and compressor unit two are all on a single axis, connected together by couplings. The interstage cooler and aftercooler are installed on opposite sides of the base. The ammonia compressor unit in this related technology is relatively large, which is not conducive to its widespread application.

[0035] like Figure 2 and Figure 4 As shown, an embodiment of this application provides an ammonia compressor unit 100, mainly used for compressing ammonia gas and outputting high-pressure ammonia gas. The ammonia compressor unit 100 includes a base 110, a compressor 120, a drive motor 130, an oil storage assembly (not shown), and a cooling assembly (not shown).

[0036] The base 110 is used to house the oil storage component and the cooling component, and to support the compressor 120 and the drive motor 130. The base 110 includes a support platform 111 and forms a housing space 113. The housing space 113 is located below the support platform 111. The compressor 120 and the drive motor 130 are respectively located above the support platform 111. The oil storage component and the cooling component are respectively located in the housing space 113. By housing the oil storage component and the cooling component below the base 110, the ammonia compressor unit 100 has a more compact structure, smaller size, wider application range, and is suitable for widespread application.

[0037] In one embodiment, the drive 130 is an electric motor.

[0038] The compressor 120 includes at least two impellers 121, and the drive motor 130 drives each impeller 121 to rotate. The rotation of the impellers 121 of the compressor 120 compresses ammonia gas and outputs high-pressure and high-temperature ammonia gas. The cooling assembly is used to cool the high-pressure and high-temperature ammonia gas output by the compressor 120. The oil storage assembly is used to provide lubricating oil for the operation of the first compressor, the second compressor, and the drive motor 130.

[0039] In some embodiments, the ammonia compressor unit 100 further includes a transmission assembly 160, which includes a coupling 161, a primary drive shaft, and a plurality of secondary drive shafts.

[0040] Among them, reference Figure 3 and Figure 5 Each secondary drive shaft has two drive ends 1631, which are connected to the impeller 121.

[0041] In practical applications, the secondary drive shaft can be connected to only one impeller 121, with one drive end 1631 of the secondary drive shaft connected to the impeller 121 and the other drive end 1631 left unused; or, the secondary drive shaft can be connected to two impellers 121, with each drive end 1631 of the secondary drive shaft connected to one impeller 121 respectively.

[0042] The secondary drive shaft 163 and the primary drive shaft 162 are connected together, and the coupling 161 connects the primary drive shaft 162 and the output shaft of the drive motor 130.

[0043] In one embodiment, both the primary drive shaft 162 and the secondary drive shaft 163 are gear shafts, and the primary drive shaft 162 and the secondary drive shaft 163 are connected by gear meshing. The coupling 161 connects the primary gear shaft and the output shaft of the drive motor 130.

[0044] like Figure 1 As shown, in the related technology, the output shaft of the drive motor and the rotor of the first compressor host, as well as the rotor of the first compressor host and the rotor of the second compressor host, are connected by couplings. The power of the drive motor determines the efficiency of ammonia compression.

[0045] like Figure 3 and Figure 5 As shown, both the primary drive shaft 162 and the secondary drive shaft 163 of this application use gear shafts to function as a transmission. The input end of the transmission is connected to the drive motor 130, and the output end is connected to the impeller 121. By adjusting the power output of the drive motor 130 and the speed increase of the transmission, the ammonia compression efficiency is improved.

[0046] The operation process of the ammonia compressor unit 100 in this application is as follows: the drive motor 130 drives part of the impeller 121 in the compressor 120 (e.g., Figure 3 The two impellers 121 on the left side of the middle section rotate to compress ammonia gas, outputting high-pressure, high-temperature ammonia gas to the interstage cooler 151. The cooled ammonia gas is then input into the compressor 120, where it is cooled by the remaining impeller 121 (e.g., ...). Figure 3 The two impellers 121 on the right side rotate to do work, and the high-temperature and high-pressure ammonia gas after being compressed again enters the aftercooler 152 for cooling, and outputs high-pressure ammonia gas to the next process.

[0047] like Figure 1 As shown, the rotors of both compressor unit one and compressor unit two are on the same axis. It can be understood that each rotor rotates at high speed during operation. When the length of each rotor is large, the connection length between the two rotors increases, making them prone to vibration and reducing the structural stability of the unit.

[0048] In some embodiments, such as Figure 3 and Figure 5As shown, the primary drive shaft 162 and the secondary drive shaft 163 extend along the first direction D1, and multiple secondary drive shafts 163 are spaced apart along the second direction D2, so that the primary drive shaft 162 and multiple secondary drive shafts 163 form a parallel structure, thereby eliminating the adverse effects of vibration caused by the large rotor connection length. The dynamic performance of the secondary drive shaft 163 is better, improving the stability and reliability of the unit operation; it also makes the structure of the compressor 120 simpler, more compact and more integrated.

[0049] like Figure 2 and Figure 4 As shown, the first direction D1 is the length direction of the base 110, the second direction D2 is the width direction of the base 110, and the third direction D3 is the height direction of the base 110.

[0050] In some embodiments, the drive motor 130 and the compressor 120 are arranged along the first direction D1, which makes the layout of the drive motor 130 and the compressor 120 reasonable and simplifies the structure of the transmission assembly 160.

[0051] In some embodiments, the oil storage assembly and the cooling assembly are spaced apart along a first direction D1, a second direction D2, or a third direction D3.

[0052] like Figure 2 As shown, the oil storage assembly and the cooling assembly are spaced apart along the first direction D1, and the two connected cylinders are the oil tank 141 and the interstage cooler 151, or the two connected cylinders are the oil tank 141 and the aftercooler 152.

[0053] The cooling assembly is located below the compressor 120, and the oil storage assembly is located below the drive motor 130. This simplifies the pipeline layout, shortens the travel distance of ammonia gas between the compressor 120 and the cooling assembly, and makes the structure of the ammonia compressor unit 100 more compact and reduces the size of the unit.

[0054] In one embodiment, the oil storage assembly and the cooling assembly are spaced apart along a first direction D1, with the cooling assembly located below the drive motor 130 and the oil storage assembly located below the compressor 120.

[0055] In one embodiment, the oil storage assembly and the cooling assembly are spaced apart along a second direction D2. For example... Figure 2 As shown, the two connected cylinders are either oil tanks 141 or interstage coolers 151 and aftercoolers 152.

[0056] In one embodiment, when there are a large number of coolers in the cooling assembly or a large number of oil tanks 141 in the oil storage assembly, the cooling assembly is placed above the oil storage assembly, or the oil storage assembly is placed above the cooling assembly, so that the structure of the ammonia compressor unit 100 is more compact and the floor space is reduced.

[0057] In some embodiments, the oil storage assembly includes at least one oil tank 141, and the cooling assembly includes an interstage cooler 151 and an aftercooler 152. The number of oil tanks 141 can be set as needed and is not particularly limited; the number of aftercoolers 152 is one, and the number of interstage coolers 151 can be set as needed and is not particularly limited.

[0058] like Figure 2 and Figure 4 As shown, the fuel tank 141, intercooler, and aftercooler 152 are all cylindrical. The cross-sections of the fuel tank 141, intercooler, and aftercooler 152 can be circular, rectangular, polygonal, etc., without any particular restrictions.

[0059] In some embodiments, such as Figure 2 As shown, when the oil storage assembly and the cooling assembly are spaced apart along the first direction D1, the oil tank 141, the intercooler and the aftercooler 152 extend along the first direction D1 respectively, and the intercooler and the aftercooler 152 are spaced apart along the second direction D2.

[0060] like Figure 2 As shown, two oil tanks 141 are spliced ​​along the second direction D2 to form the width direction of the support platform 111, and one oil tank 141 and one cooler are spliced ​​along the first direction D1 to form the length direction of the support platform 111. This makes the layout of the compressor 120, drive motor 130, oil storage assembly and cooling assembly reasonable and compact, reducing the volume of the ammonia compressor unit 100.

[0061] Among them, support platform 111 is Figure 4 The tablet in the middle, or Figure 2 The support surface is composed of the top surfaces of multiple support plates 112.

[0062] In some embodiments, such as Figure 4 As shown, when the oil storage assembly and the cooling assembly are spaced apart along the second direction D2, the oil tank 141, the intercooler and the aftercooler 152 extend along the second direction D2 respectively, and the intercooler and the aftercooler 152 are spaced apart along the second direction D2, so that the layout of the compressor 120, the drive motor 130, the oil storage assembly and the cooling assembly is reasonable and compact, reducing the volume of the ammonia compressor unit 100.

[0063] In some embodiments, the base 110 further includes a plurality of support plates 112 spaced apart along a first direction D1 or a second direction D2. The support plates 112 are connected to the lower part of the support platform 111 and form a receiving space 113.

[0064] like Figure 2 As shown, four support plates 112 are spaced apart along the first direction D1, as follows: Figure 4As shown, the two support plates 112 are spaced apart along the second direction D2.

[0065] Each support plate 112 has a through hole 1121, through which the oil tank 141, interstage cooler 151 or aftercooler 152 pass to prevent the oil tank 141 and each cooler from directly touching the ground.

[0066] This application also provides an ammonia compression apparatus, including the ammonia compressor unit 100 in any of the above embodiments. Therefore, it has all the beneficial effects of the ammonia compressor unit 100 in any of the above embodiments, which will not be described in detail here.

[0067] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0068] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. An ammonia compressor unit, characterized in that, include: A base, including a support platform, wherein the base forms a receiving space located below the support platform; A compressor and a drive motor are respectively disposed above the support platform. The compressor includes at least two impellers, and the drive motor drives each impeller to rotate. The oil storage assembly and the cooling assembly are respectively located within the containment space.

2. The ammonia compressor unit according to claim 1, characterized in that, The ammonia compressor unit also includes a transmission assembly, which includes a coupling, a primary transmission shaft, and multiple secondary transmission shafts. Each of the secondary drive shafts has two drive ends, which are connected to the impeller. The secondary drive shaft and the primary drive shaft are connected in a cooperative manner. The coupling connects the primary drive shaft and the output shaft of the drive motor.

3. The ammonia compressor unit according to claim 2, characterized in that, The primary drive shaft and the secondary drive shaft extend along a first direction, and the plurality of secondary drive shafts are spaced apart along a second direction, wherein the first direction and the second direction are perpendicular.

4. The ammonia compressor unit according to claim 3, characterized in that, The drive unit and the compressor are arranged along the first direction.

5. The ammonia compressor unit according to claim 3, characterized in that, The oil storage component and the cooling component are spaced apart along the first direction, the second direction, or the third direction, with the first direction, the second direction, and the third direction being perpendicular to each other.

6. The ammonia compressor unit according to claim 5, characterized in that, The oil storage assembly includes at least one oil tank, and the cooling assembly includes an interstage cooler and an aftercooler. The oil tank, the intercooler, and the aftercooler are all cylindrical in shape.

7. The ammonia compressor unit according to claim 6, characterized in that, When the oil storage assembly and the cooling assembly are spaced apart along the first direction, the oil tank, the intercooler and the aftercooler extend along the first direction respectively, and the intercooler and the aftercooler are spaced apart along the second direction.

8. The ammonia compressor unit according to claim 6, characterized in that, When the oil storage assembly and the cooling assembly are spaced apart along the second direction, the oil tank, the intercooler and the aftercooler extend along the second direction respectively, and the intercooler and the aftercooler are spaced apart along the second direction.

9. The ammonia compressor unit according to claim 6, characterized in that, The base also includes a plurality of support plates spaced apart along the first direction or the second direction. The support plates are connected to the lower part of the support platform and form the receiving space. Each support plate has a through hole, through which the oil tank, the interstage cooler or the aftercooler passes.

10. An ammonia compression device, characterized in that, The ammonia compressor unit includes any one of claims 1 to 9.

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