CN214407632U - Flow metering device of double-screw air compressor - Google Patents
Flow metering device of double-screw air compressor Download PDFInfo
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- CN214407632U CN214407632U CN202023262335.0U CN202023262335U CN214407632U CN 214407632 U CN214407632 U CN 214407632U CN 202023262335 U CN202023262335 U CN 202023262335U CN 214407632 U CN214407632 U CN 214407632U
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Abstract
The utility model discloses a flow metering device of a double-screw air compressor, which comprises an air filter, a positive displacement flow measuring device and an oil-gas separator; the positive displacement flow measuring device comprises a device main body, a rubber coupling, a first bearing, a female screw and a male screw; the rubber coupling is arranged at one end inside the device main body, and the first bearing is arranged at the other end of the rubber coupling; the female screw is arranged at the other end of the first bearing, and the male screw is arranged above the female screw; and the female screw rod and the male screw rod are respectively provided with a transmission gear and are meshed with each other through the transmission gears to achieve connection. The utility model discloses make the air compressor machine guarantee reasonable load work, produce sufficient temperature, guarantee that the air compressor machine moves all the time within ideal temperature range, can prolong the host computer life-span greatly under ideal temperature when the air compressor machine moves all the time, reduce and maintain maintenance cycle and frequency, greatly reduced air compressor machine is as the probability, guarantees the operation of locomotive safe and reliable.
Description
Technical Field
The utility model relates to a machinery, concretely relates to double screw air compressor machine flow metering device.
Background
Compressed air is an important energy source and is widely used in manufacturing. The air discharge flow provided by the screw air compressor sold in the market at present is a factory detection value, and a user of the screw air compressor cannot obtain the actual operation flow in the use process. If a user needs to obtain flow data, a flowmeter can be arranged at an air inlet of the screw air compressor, air sucked by the screw air compressor in unit time is measured, and then FAD flow is calculated; and a flowmeter can be arranged at the outlet of the air compressor to measure the compressed air exhausted by the screw air compressor in unit time, and then the FAD flow is calculated.
In the prior art, one method is to install a flowmeter at the air inlet of the screw air compressor, measure the air sucked by the screw air compressor in unit time, and then calculate the FAD flow. The method has the main problems that measurement is carried out when the air inlet filter of the screw air compressor needs to be dismounted, a test instrument is complex to install, the mounting and dismounting time is long during each measurement, and online measurement cannot be carried out; and the other method is that a flowmeter is arranged at the outlet of the air compressor, the compressed air discharged by the screw air compressor in unit time is measured, and then the FAD flow is calculated. The main problems are that the installation is complex, the installation has potential safety hazards on a pressure pipeline, the calibration is required regularly, and continuous measurement cannot be carried out during the calibration.
Disclosure of Invention
The utility model aims to solve the technical problem that make the air compressor machine guarantee reasonable load work, produce sufficient temperature, guarantee that the air compressor machine moves all the time within ideal temperature range, can prolong the host computer life-span greatly under ideal temperature when the air compressor machine moves all the time, reduce maintenance cycle and frequency, greatly reduced air compressor machine is when the probability, guarantees the operation of locomotive safe and reliable.
The utility model discloses double screw air compressor machine flow metering device realizes through following technical scheme: the device comprises an air filter, a positive displacement flow measuring device and an oil-gas separator;
the positive displacement flow measuring device comprises a device main body, a rubber coupling, a first bearing, a female screw and a male screw; the rubber coupling is arranged at one end inside the device main body, and the first bearing is arranged at the other end of the rubber coupling; the female screw is arranged at the other end of the first bearing, and the male screw is arranged above the female screw; the female screw and the male screw are provided with transmission gears, and are meshed with each other through the transmission gears to achieve connection; and the other ends of the female screw and the male screw are provided with fourth bearings.
Preferably, a second bearing is arranged between the transmission gear of the female screw and the third bearing.
As a preferred technical scheme, an air filter is connected with a volume type flow measuring device through a pipeline, an air inlet valve is arranged on the pipeline connecting the air filter and the volume type flow measuring device, and one end of a servo cylinder is arranged on the air inlet valve; one side of the other end of the servo cylinder is connected with a positive displacement flow measuring device through a pipeline; the other side of the other end of the servo cylinder is connected to the upper part of the oil-gas separator through a pipeline, and an inverse proportion valve, a second filter and an electromagnetic valve are arranged on the pipeline; the positive displacement flow measuring device is connected with an oil storage position below the oil-gas separator through a pipeline, and the pipeline is sequentially provided with a first pressure gauge, an oil filter, an oil cooler and a temperature control valve; the positive displacement flow measuring device is connected with one side of the oil-gas separator through a pipeline, and a temperature sensor is arranged on the pipeline; the positive displacement flow measuring device is connected with the inside of the oil-gas separator through a pipeline, and an oil viewing window and a first filter are sequentially arranged on the pipeline; the positive displacement flow measuring device is connected with a pipeline between the first pressure gauge and the oil filter through a pipeline.
As a preferable technical scheme, a filter maintenance indicator is arranged on a pipeline of the air filter and the volumetric flow measuring device, and an emptying valve is arranged on one side of the pipeline connecting the air filter and the volumetric flow measuring device; one side of the emptying valve is connected with a pipeline between the inverse proportion valve and the second filter through a pipeline, one end of the emptying valve is connected with a pipeline between the electromagnetic valve and the oil-gas separator through a pipeline, and a vent valve is arranged at the joint of the emptying valve and the pipeline between the electromagnetic valve and the oil-gas separator.
As a preferred technical scheme, a differential pressure signal transmitter is arranged below the oil filter, and two ends of the differential pressure signal transmitter are respectively connected to two ends of the oil filter; a pipeline is arranged above the temperature control valve and is connected with the pipeline between the oil filter and the oil cooler through the pipeline.
As the preferred technical scheme, an oil-gas separation core is arranged in the oil-gas separator, and the positive displacement flow measuring device is connected with the oil-gas separation core in the oil-gas separator through a pipeline; an oil sight glass is arranged on the oil-gas separator, an oil drain valve is arranged below the other side of the oil-gas separator, and a safety valve is arranged above the other side of the oil-gas separator.
As the preferred technical scheme, a minimum pressure valve is installed above the oil-gas separator, one side of the minimum pressure valve is connected with a rear cooler through a pipeline, and a second pressure gauge and a pressure controller are sequentially arranged on the pipeline.
The utility model has the advantages that: the utility model discloses make the air compressor machine guarantee reasonable load work, produce sufficient temperature, guarantee that the air compressor machine moves all the time within ideal temperature range, can prolong the host computer life-span greatly under ideal temperature when the air compressor machine moves all the time, reduce and maintain maintenance cycle and frequency, greatly reduced air compressor machine is as the probability, guarantees the operation of locomotive safe and reliable.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic view of the connection structure of the present invention;
fig. 2 is a schematic structural diagram of the positive displacement flow rate measuring device of the present invention.
Detailed Description
All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.
Any feature disclosed in this specification (including any accompanying claims, abstract and drawings), may be replaced by alternative features serving equivalent or similar purposes, unless expressly stated otherwise. That is, unless expressly stated otherwise, each feature is only an example of a generic series of equivalent or similar features.
In the description of the present invention, it is to be understood that the terms "one end", "the other end", "the outside", "upper", "inside", "horizontal", "coaxial", "central", "end", "length", "outer end", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Furthermore, in the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
The use of terms herein such as "upper," "above," "lower," "below," and the like in describing relative spatial positions is for the purpose of facilitating description to describe one element or feature's relationship to another element or feature as illustrated in the figures. The spatially relative positional terms may be intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "below" can encompass both an orientation of above and below. The device may be otherwise oriented and the spatially relative descriptors used herein interpreted accordingly.
In the present invention, unless otherwise explicitly specified or limited, the terms "set", "coupled", "connected", "penetrating", "plugging", and the like are to be understood in a broad sense, and may be, for example, fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
As shown in fig. 1-2, the flow metering device of the twin-screw air compressor of the present invention comprises an air cleaner 1, a positive displacement flow measuring device 5 and an oil-gas separator 6;
the positive displacement flow measuring device 5 comprises a device body 5.1, a rubber coupling 5.2, a first bearing 5.3, a female screw 5.7 and a male screw 5.8; the rubber coupling 5.2 is arranged at one end of the inner part of the device main body 5.1, and the first bearing 5.3 is arranged at the other end of the rubber coupling 5.2; the female screw 5.7 is arranged at the other end of the first bearing 5.3, and the male screw 5.8 is arranged above the female screw 5.7; the female screw 5.7 and the male screw 5.8 are both provided with a transmission gear 5.9, and the female screw 5.7 and the male screw 5.8 are meshed with each other through the transmission gear 5.9 to achieve connection; one ends of the female screw 5.7 and the male screw 5.8 are provided with third bearings 5.5, and the other ends of the female screw 5.7 and the male screw 5.8 are provided with fourth bearings 5.6; every time the screw rotates a circle, a closed space with a fixed size is formed between the male rotor and the female rotor. Combining data of an atmospheric temperature sensor and a humidity sensor through a rotating speed measuring device; calculating through a background PLC to obtain the air quantity sucked by the double-screw air compressor in unit time; subtracting the self gas consumption and leakage of the double-screw air compressor, and calculating to obtain the compressed air flow generated by the air compressor through a background PLC (programmable logic controller); and finally, visually providing the flow parameters of the double-screw air compressor to a user through a display screen of the air compressor, and storing the flow parameters in a storage system of the control PLC for the user to manage and use.
In this embodiment, a second bearing 5.4 is provided between the drive gear 5.9 and the third bearing 5.5 of the female screw 5.7.
In the embodiment, the air filter 1 is connected with the volumetric flow measuring device 5 through a pipeline, an air inlet valve 2 is arranged on the pipeline connecting the air filter 1 and the volumetric flow measuring device 5, and one end of a servo cylinder 3 is arranged on the air inlet valve 2; one side of the other end of the servo cylinder 3 is connected with a positive displacement flow measuring device 5 through a pipeline; the other side of the other end of the servo cylinder 3 is connected to the upper part of the oil-gas separator 6 through a pipeline, and an inverse proportion valve 14, a second filter 15 and an electromagnetic valve 13 are arranged on the pipeline; the positive displacement flow measuring device 5 is connected with an oil storage position below the oil-gas separator 6 through a pipeline, and a first pressure gauge 20, an oil filter 18, an oil cooler 9 and a temperature control valve 17 are sequentially arranged on the pipeline; the positive displacement flow measuring device 5 is connected with one side of the oil-gas separator 6 through a pipeline, and a temperature sensor 19 is arranged on the pipeline; the positive displacement flow measuring device 5 is connected with the inside of the oil-gas separator 6 through a pipeline, and an oil window 16 and a first filter 12 are sequentially arranged on the pipeline; the positive displacement flow measuring device 5 is connected via a line to the line between the first pressure gauge 20 and the oil filter 18.
In this embodiment, a filter maintenance indicator 26 is provided on the pipe connecting the air cleaner 1 and the volumetric flow measurement device 5, and an air release valve 4 is provided on one side of the pipe connecting the air cleaner 1 and the volumetric flow measurement device 5; one side of the emptying valve 4 is connected with a pipeline between the inverse proportion valve 14 and the second filter 15 through a pipeline, one end of the emptying valve 4 is connected with a pipeline between the electromagnetic valve 13 and the oil-gas separator 6 through a pipeline, and a vent valve 27 is arranged at the joint of the emptying valve 4 and the pipeline between the electromagnetic valve 13 and the oil-gas separator 6.
In this embodiment, a differential pressure transmitter 21 is disposed below the oil filter 18, and two ends of the differential pressure transmitter 21 are respectively connected to two ends of the oil filter 18; a pipeline is arranged above the temperature control valve 17 and is connected with the pipeline between the oil filter 18 and the oil cooler 9 through the pipeline.
In the embodiment, an oil-gas separation core 7 is arranged in the oil-gas separator 6, and the positive displacement flow measuring device 5 is connected with the oil-gas separation core 7 in the oil-gas separator 6 through a pipeline; an oil sight glass 22 is arranged on the oil-gas separator 6, an oil drain valve 11 is arranged below the other side of the oil-gas separator 6, and a safety valve 10 is arranged above the other side of the oil-gas separator 6.
In this embodiment, a minimum pressure valve 8 is installed above the oil-gas separator 6, one side of the minimum pressure valve 8 is connected with a post-cooler 25 through a pipeline, and a second pressure gauge 23 and a pressure controller 24 are sequentially arranged on the pipeline.
The working principle is as follows:
a closed space with a fixed size is formed between the male rotor and the female rotor every time a screw of the positive displacement flow measuring device rotates one circle. Combining data of an atmospheric temperature sensor and a humidity sensor through a rotating speed measuring device; calculating through a background PLC to obtain the air quantity sucked by the double-screw air compressor in unit time; subtracting the self gas consumption and leakage of the double-screw air compressor, and calculating to obtain the compressed air flow generated by the air compressor through a background PLC (programmable logic controller); and finally, visually providing the flow parameters of the double-screw air compressor to a user through a display screen of the air compressor, and storing the flow parameters in a storage system of the control PLC for the user to manage and use.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that are not thought of through the creative work should be covered within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope defined by the claims.
Claims (7)
1. The utility model provides a double screw air compressor machine flow metering device which characterized in that: comprises an air filter (1), a positive displacement flow measuring device (5) and an oil-gas separator (6);
the positive displacement flow measuring device (5) comprises a device body (5.1), a rubber coupling (5.2), a first bearing (5.3), a female screw (5.7) and a male screw (5.8); the rubber coupling (5.2) is arranged at one end of the inner part of the device main body (5.1), and the first bearing (5.3) is arranged at the other end of the rubber coupling (5.2); the female screw (5.7) is arranged at the other end of the first bearing (5.3), and the male screw (5.8) is arranged above the female screw (5.7); the female screw (5.7) and the male screw (5.8) are provided with transmission gears (5.9), and the female screw (5.7) and the male screw (5.8) are meshed with each other through the transmission gears (5.9) to achieve connection; and one ends of the female screw (5.7) and the male screw (5.8) are respectively provided with a third bearing (5.5), and the other ends of the female screw (5.7) and the male screw (5.8) are respectively provided with a fourth bearing (5.6).
2. The double-screw air compressor flow metering device of claim 1, characterized in that: and a second bearing (5.4) is arranged between the transmission gear (5.9) of the female screw (5.7) and the third bearing (5.5).
3. The double-screw air compressor flow metering device of claim 1, characterized in that: the air filter (1) is connected with the volumetric flow measuring device (5) through a pipeline, an air inlet valve (2) is arranged on the pipeline connecting the air filter (1) and the volumetric flow measuring device (5), and one end of the servo cylinder (3) is installed on the air inlet valve (2); one side of the other end of the servo cylinder (3) is connected with a positive displacement flow measuring device (5) through a pipeline; the other side of the other end of the servo cylinder (3) is connected to the upper part of the oil-gas separator (6) through a pipeline, and an inverse proportion valve (14), a second filter (15) and an electromagnetic valve (13) are arranged on the pipeline; the positive displacement flow measuring device (5) is connected with an oil storage position below the oil-gas separator (6) through a pipeline, and a first pressure gauge (20), an oil filter (18), an oil cooler (9) and a temperature control valve (17) are sequentially arranged on the pipeline; the positive displacement flow measuring device (5) is connected with one side of the oil-gas separator (6) through a pipeline, and a temperature sensor (19) is arranged on the pipeline; the positive displacement flow measuring device (5) is connected with the inside of the oil-gas separator (6) through a pipeline, and an oil viewing window (16) and a first filter (12) are sequentially arranged on the pipeline; the positive displacement flow measuring device (5) is connected with a pipeline between the first pressure gauge (20) and the oil filter (18) through a pipeline.
4. The double-screw air compressor flow metering device of claim 3, characterized in that: an air filter maintenance indicator (26) is arranged on a pipeline of the air filter (1) and the volumetric flow measuring device (5), and an emptying valve (4) is arranged on one side of the pipeline connecting the air filter (1) and the volumetric flow measuring device (5); one side of the emptying valve (4) is connected with a pipeline between the inverse proportion valve (14) and the second filter (15) through a pipeline, one end of the emptying valve (4) is connected with a pipeline between the electromagnetic valve (13) and the oil-gas separator (6) through a pipeline, and a vent valve (27) is arranged at the joint of the emptying valve (4) and the pipeline between the electromagnetic valve (13) and the oil-gas separator (6).
5. The double-screw air compressor flow metering device of claim 3, characterized in that: a differential pressure signal transmitter (21) is arranged below the oil filter (18), and two ends of the differential pressure signal transmitter (21) are respectively connected to two ends of the oil filter (18); a pipeline is arranged above the temperature control valve (17) and is connected with the pipeline between the oil filter (18) and the oil cooler (9) through the pipeline.
6. The double-screw air compressor flow metering device of claim 3, characterized in that: an oil-gas separation core is arranged in the oil-gas separator (6), and the positive displacement flow measuring device (5) is connected with the oil-gas separation core in the oil-gas separator (6) through a pipeline; an oil sight glass (22) is arranged on the oil-gas separator (6), an oil drain valve (11) is arranged below the other side of the oil-gas separator (6), and a safety valve (10) is arranged above the other side of the oil-gas separator (6).
7. The double-screw air compressor flow metering device of claim 3, characterized in that: and a minimum pressure valve (8) is installed above the oil-gas separator (6), one side of the minimum pressure valve (8) is connected with a rear cooler (25) through a pipeline, and a second pressure gauge (23) and a pressure controller (24) are sequentially arranged on the pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023262335.0U CN214407632U (en) | 2020-12-29 | 2020-12-29 | Flow metering device of double-screw air compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023262335.0U CN214407632U (en) | 2020-12-29 | 2020-12-29 | Flow metering device of double-screw air compressor |
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| Publication Number | Publication Date |
|---|---|
| CN214407632U true CN214407632U (en) | 2021-10-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023262335.0U Active CN214407632U (en) | 2020-12-29 | 2020-12-29 | Flow metering device of double-screw air compressor |
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| Country | Link |
|---|---|
| CN (1) | CN214407632U (en) |
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2020
- 2020-12-29 CN CN202023262335.0U patent/CN214407632U/en active Active
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