CN220101529U - Screw vacuum pump for producing potassium nitrate - Google Patents
Screw vacuum pump for producing potassium nitrate Download PDFInfo
- Publication number
- CN220101529U CN220101529U CN202321390525.1U CN202321390525U CN220101529U CN 220101529 U CN220101529 U CN 220101529U CN 202321390525 U CN202321390525 U CN 202321390525U CN 220101529 U CN220101529 U CN 220101529U
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- China
- Prior art keywords
- motor
- cover
- potassium nitrate
- vacuum pump
- pump
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 title claims abstract description 48
- 235000010333 potassium nitrate Nutrition 0.000 title claims abstract description 24
- 239000004323 potassium nitrate Substances 0.000 title claims abstract description 24
- 238000007789 sealing Methods 0.000 claims description 10
- 238000002156 mixing Methods 0.000 claims description 7
- 230000008878 coupling Effects 0.000 claims description 5
- 238000010168 coupling process Methods 0.000 claims description 5
- 238000005859 coupling reaction Methods 0.000 claims description 5
- 239000002828 fuel tank Substances 0.000 claims description 4
- 238000002425 crystallisation Methods 0.000 abstract description 8
- 230000008025 crystallization Effects 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 7
- 239000007788 liquid Substances 0.000 abstract description 4
- 238000005086 pumping Methods 0.000 abstract description 4
- 206010013496 Disturbance in attention Diseases 0.000 abstract description 3
- 239000012452 mother liquor Substances 0.000 abstract description 3
- 238000009434 installation Methods 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- 238000000034 method Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 239000000498 cooling water Substances 0.000 description 3
- 230000006872 improvement Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229910002651 NO3 Inorganic materials 0.000 description 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- DHKHZGZAXCWQTA-UHFFFAOYSA-N [N].[K] Chemical compound [N].[K] DHKHZGZAXCWQTA-UHFFFAOYSA-N 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 150000002484 inorganic compounds Chemical class 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
Landscapes
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The utility model discloses a screw vacuum pump for producing potassium nitrate, which comprises a motor, a side cover and a pump body, wherein a first end cover is fixed at the side end of the motor, the first end cover is fixed on the side cover through a bolt, and one end of the side cover, which is far away from the motor, is fixed with the pump body through the bolt; the output end of the motor is fixedly connected with a coupler, one end, away from the motor, of the coupler is connected with a driving gear, and the side edge of the driving gear is connected with a driven gear in a meshed mode. The overflow part in the pump has no contact friction, parts are not easy to wear, the service life is long, the vacuum degree of the unit is high, the high vacuum pumping quantity is large, and the pump is suitable for being used in the pressure range of 2-1500 Pa; the unit has compact structure, small occupied area, small vibration and convenient installation and operation, solves the problem of poor concentration effect when the existing screw vacuum pump is used for crystallizing potassium nitrate mother liquor, and ensures the concentration effect of potassium nitrate liquid crystallization.
Description
Technical Field
The utility model relates to a screw vacuum pump, in particular to a screw vacuum pump for producing potassium nitrate.
Background
The potassium nitrate is an inorganic compound commonly called as Sal Nitri or Sal Nitri, is nitrate containing potassium, is also a chlorine-free nitrogen-potassium compound fertilizer, and has high solubility. In the process of producing potassium nitrate, a vacuum pump is needed, such as the application number 200920065608.7, the name of the vacuum cooling crystallization device for producing potassium nitrate is that a vacuum pump is arranged on the vacuum cooling crystallization device, the vacuum pump is connected with a condenser through a pipeline, a water suction port of the water pump is connected with a water tank, a water outlet of the water pump is connected with the condenser through a jet pump, the vacuum cooling crystallization device comprises a cylindrical container inner wall, a central circulating pipe is fixed through a bracket, a spray head is connected to the upper part of the central circulating pipe, a feed inlet is arranged at the bottom of the cylindrical container, and a discharge outlet is arranged in the middle.
The heat preservation structure of the vacuum pump unit, which is not well designed, is greatly influenced by the ambient temperature and the temperature of cooling water, and the existing vacuum pump is used for carrying out crystallization treatment on the potassium nitrate mother liquor, so that the problem of poor concentration effect is caused by the great influence of the temperature.
Disclosure of Invention
In this embodiment, a screw vacuum pump for producing potassium nitrate is provided for solving the problems in the prior art.
According to one aspect of the utility model, there is provided a screw vacuum pump for producing potassium nitrate, comprising a motor, a side cover and a pump body, wherein a first end cover is fixed at the side end of the motor, the first end cover is fixed on the side cover through a bolt, and one end of the side cover, which is far away from the motor, is fixed with the pump body through a bolt; the output fixedly connected with shaft coupling of motor, and the one end that the motor was kept away from to the shaft coupling is connected with the driving gear, driving gear side meshing is connected with driven gear, driven gear and driving gear all rotate with the side cap through the biserial angular contact bearing and are connected, the side cap is kept away from the one end inside of motor and has been cup jointed first piston ring, and first piston ring outside cover is equipped with first ring cover, the side cap is kept away from the one end side of motor and has been offered the malleation and has been filled airtight seal, the one end that keeps away from of motor of driving gear is fixed with the driving rotor, the one end that the motor was kept away from to the driven gear is fixed with driven rotor, the one end that the motor was kept away from to the pump body is through the bolt fastening second end cover, driving rotor and driven rotor all rotate with the inside of pump body and second end cover through cylindrical roller bearing, every cylindrical roller bearing outside all overlaps and is equipped with the second piston ring, and the second piston ring outside all overlaps and is equipped with the second ring cover, the one end that the pump body was kept away from to the second end is fixed with the fuel tank cap.
Further, a plurality of air-mixing ports are formed in the pump body on the side edge of the positive-pressure air-filling sealing opening at equal intervals, and three groups of air-mixing ports are formed.
Further, the driven gear and the driving gear adopt profile lines, the rotation directions of the driven gear and the driving gear are opposite, the meshing gap is uniform, and the meshing line is closed.
Further, a first dry sealing ring is arranged between the outer sides of the two double-row angular contact bearings and the inner wall of the pump body, and a second dry sealing ring is arranged on the outer sides of the two cylindrical roller bearings.
Further, each driving rotor and each driven rotor are arranged in a staggered mode, the axes of the driving rotor and the driving gear are in the same straight line, and the axial directions of the driven rotor and the driven gear are in the same straight line.
Further, the second dry sealing ring, the cylindrical roller bearing, the second ring sleeve and the second piston ring are all positioned at the joint of the second end cover and the pump body.
According to the embodiment of the utility model, the Roots vacuum pump and the screw vacuum pump are connected in series, the vacuum pump belongs to a dry vacuum pumping system, the pumping performance of the unit is stable, the influence of the ambient temperature and the cooling water temperature is small, the unit adopts an explosion-proof and corrosion-proof design, the part passing through the pump is in non-contact friction, parts are not easy to wear, the service life is long, the vacuum degree of the unit is high, the high vacuum pumping capacity is large, and the vacuum pump is suitable for being used in a pressure range of 2-1500 Pa; the unit has compact structure, small occupied area, small vibration and convenient installation and operation, solves the problem of poor concentration effect when the existing screw vacuum pump is used for crystallizing potassium nitrate mother liquor, and ensures the concentration effect of potassium nitrate liquid crystallization.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained from these drawings without inventive faculty for a person skilled in the art.
FIG. 1 is a schematic elevational view of an embodiment of the present utility model;
FIG. 2 is a schematic cross-sectional view of an embodiment of the present utility model;
fig. 3 is a diagram showing the correspondence between water and vacuum according to an embodiment of the present utility model.
In the figure: 1. a motor; 2. a first end cap; 3. a coupling; 4. a driven gear; 5. a drive gear; 6. a first dry seal ring; 7. double row angular contact bearing; 8. a side cover; 9. positive pressure air-tight sealing; 10. a first piston ring; 11. a first collar; 12. an air mixing port; 13. a driving rotor; 14. a pump body; 15. a driven rotor; 16. a second dry seal ring; 17. cylindrical roller bearings; 18. a second collar; 19. a second piston ring; 20. a second end cap; 21. a fuel tank cap.
Detailed Description
In order that those skilled in the art will better understand the present utility model, a technical solution in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, shall fall within the scope of the present utility model.
It should be noted that the terms "first," "second," and the like in the description and the claims of the present utility model and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate in order to describe the embodiments of the utility model herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
In the present utility model, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate an azimuth or a positional relationship based on that shown in the drawings. These terms are only used to better describe the present utility model and its embodiments and are not intended to limit the scope of the indicated devices, elements or components to the particular orientations or to configure and operate in the particular orientations.
Also, some of the terms described above may be used to indicate other meanings in addition to orientation or positional relationships, for example, the term "upper" may also be used to indicate some sort of attachment or connection in some cases. The specific meaning of these terms in the present utility model will be understood by those of ordinary skill in the art according to the specific circumstances.
Furthermore, the terms "mounted," "configured," "provided," "connected," "coupled," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; may be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements, or components. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other. The utility model will be described in detail below with reference to the drawings in connection with embodiments.
Referring to fig. 1-3, a screw vacuum pump for producing potassium nitrate comprises a motor 1, a side cover 8 and a pump body 14, wherein a first end cover 2 is fixed at the side end of the motor 1, the first end cover 2 is fixed on the side cover 8 through a bolt, and one end of the side cover 8 away from the motor 1 is fixed with the pump body 14 through a bolt; the output end of the motor 1 is fixedly connected with a coupler 3, one end of the coupler 3 far away from the motor 1 is connected with a driving gear 5, the side edge of the driving gear 5 is meshed with a driven gear 4, the driven gear 4 and the driving gear 5 are both rotationally connected with a side cover 8 through a double-row angular contact bearing 7, a first piston ring 10 is sleeved inside one end of the side cover 8 far away from the motor 1, a first annular sleeve 11 is sleeved outside the first piston ring 10, a positive pressure airtight seal 9 is arranged on the side edge of one end of the side cover 8 far away from the motor 1, one end of the driving gear 5 far away from the motor 1 is fixedly provided with a driving rotor 13, one end of the driven gear 4 far away from the motor 1 is fixedly provided with a driven rotor 15, one end of the pump body 14 far away from the motor 1 is fixedly provided with a second end cover 20 through bolts, the driving rotor 13 and the driven rotor 15 are rotationally connected with the pump body 14 and the second end cover 20 through cylindrical roller bearings 17, the outer side of each cylindrical roller bearing 17 is sleeved with a second piston ring 19, the outer side of each second piston ring 19 is sleeved with a second ring sleeve 18, one end of a second end cover 20, which is far away from the pump body 14, is fixedly provided with a fuel tank cover 21, the screw vacuum pump unit is adopted to effectively improve the crystallization concentration of potassium nitrate liquid, the evaporated water vapor is taken away by a cooling water to be used as circulating water, the investment of other energy resource costs is reduced, the process production can be used for stably producing potassium nitrate for a long time, zero pollution is achieved by water drainage and air exhaust, in order to ensure that the potassium nitrate production achieves the best concentration crystallization effect, the local atmospheric pressure is measured according to the geographical position of a production workshop, the vacuum degree is equal to the atmospheric pressure minus the absolute pressure, the boiling point of the liquid is reduced, the redundant water is evaporated, and the production yield and the benefit are improved;
a plurality of air-mixing ports 12 are equidistantly arranged on a pump body 14 at the side edge of the positive pressure air-filling seal 9, and three groups of air-mixing ports 12 are arranged; the driven gear 4 and the driving gear 5 are both profile lines, the rotation directions of the driven gear 4 and the driving gear 5 are opposite, the meshing gap is uniform, and the meshing line is closed; a first dry sealing ring 6 is arranged between the outer sides of the two double-row angular contact bearings 7 and the inner wall of the pump body 14, and a second dry sealing ring 16 is arranged on the outer sides of the two cylindrical roller bearings 17; each driving rotor 13 and each driven rotor 15 are arranged in a staggered way, the axes of the driving rotors 13 and the driving gear 5 are in the same straight line, and the axes of the driven rotors 15 and the driven gear 4 are in the same straight line; the second dry seal ring 16, the cylindrical roller bearing 17, the second ring sleeve 18 and the second piston ring 19 are all positioned at the joint of the second end cover 20 and the pump body 14.
When the screw vacuum pump is used, the air suction of the screw vacuum pump unit is divided into three processes of air suction, compression and air discharge, the motor 1 is started to drive the screw rotor to synchronously rotate at a high speed in the opposite direction by the synchronous gear, the air suction and the air discharge are continuously carried out through the volume change between the screw rotor and the pump cavity, the closed space of the air suction section is enlarged through the meshing rotation of the driving rotor 13 and the driven rotor 15, the air is sucked into the pump cavity, the volume of the closed space is gradually reduced along with the operation of the pump, and the air in the pump cavity is continuously discharged so as to achieve the vacuum effect.
The circuit, the electronic components and the modules are all in the prior art, and can be completely realized by a person skilled in the art, and needless to say, the protection of the utility model does not relate to the improvement of software and a method.
The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (6)
1. A screw vacuum pump for producing potassium nitrate, characterized by: the novel electric motor comprises a motor (1), a side cover (8) and a pump body (14), wherein a first end cover (2) is fixed at the side end of the motor (1), the first end cover (2) is fixed on the side cover (8) through a bolt, and one end, far away from the motor (1), of the side cover (8) is fixed with the pump body (14) through the bolt; the output end fixedly connected with shaft coupling (3) of motor (1), and the one end that motor (1) was kept away from to shaft coupling (3) is connected with driving gear (5), driving gear (5) side meshing is connected with driven gear (4), driven gear (4) and driving gear (5) all rotate through biserial angular contact bearing (7) and side cap (8) and are connected, first piston ring (10) have been cup jointed in the one end inside that motor (1) was kept away from to side cap (8), and first piston ring (10) outside cover is equipped with first ring cover (11), positive pressure airtight seal (9) have been seted up to one end side that motor (1) was kept away from to side cap (8), driving rotor (13) are fixed with to the one end that motor (1) was kept away from to driven gear (4), the one end that motor (1) was kept away from to driven gear (15) is fixed with driven rotor (15), the one end that motor (1) was kept away from through bolt fastening second end cap (20), driving rotor (13) and driven rotor (15) all are equipped with cylinder roller (17) and second cylinder bearing (20) through cylinder roller (17) and cylinder roller (17) are all connected in the cylinder roller (19) outside each cylinder cover, and the outer sides of the second piston rings (19) are sleeved with second ring sleeves (18), and one end of the second end cover (20) far away from the pump body (14) is fixed with a fuel tank cover (21).
2. A screw vacuum pump for producing potassium nitrate according to claim 1, wherein: a plurality of air-mixing ports (12) are equidistantly arranged on a pump body (14) at the side edge of the positive pressure air-filling seal (9), and three groups of air-mixing ports (12) are arranged.
3. A screw vacuum pump for producing potassium nitrate according to claim 1, wherein: the driven gear (4) and the driving gear (5) are both of profile lines, the rotation directions of the driven gear (4) and the driving gear (5) are opposite, the meshing gaps are uniform, and the meshing lines are closed.
4. A screw vacuum pump for producing potassium nitrate according to claim 1, wherein: a first dry sealing ring (6) is arranged between the outer sides of the two double-row angular contact bearings (7) and the inner wall of the pump body (14), and a second dry sealing ring (16) is arranged on the outer sides of the two cylindrical roller bearings (17).
5. A screw vacuum pump for producing potassium nitrate according to claim 3, wherein: every driving rotor (13) and driven rotor (15) are all staggered, the axes of the driving rotor (13) and the driving gear (5) are in the same straight line, and the axial directions of the driven rotor (15) and the driven gear (4) are in the same straight line.
6. A screw vacuum pump for producing potassium nitrate according to claim 4, wherein: the second dry sealing ring (16), the cylindrical roller bearing (17), the second annular sleeve (18) and the second piston ring (19) are all positioned at the joint of the second end cover (20) and the pump body (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321390525.1U CN220101529U (en) | 2023-06-02 | 2023-06-02 | Screw vacuum pump for producing potassium nitrate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321390525.1U CN220101529U (en) | 2023-06-02 | 2023-06-02 | Screw vacuum pump for producing potassium nitrate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220101529U true CN220101529U (en) | 2023-11-28 |
Family
ID=88870349
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321390525.1U Active CN220101529U (en) | 2023-06-02 | 2023-06-02 | Screw vacuum pump for producing potassium nitrate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220101529U (en) |
-
2023
- 2023-06-02 CN CN202321390525.1U patent/CN220101529U/en active Active
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