CN218742465U - Energy-saving hydraulic classification system - Google Patents
Energy-saving hydraulic classification system Download PDFInfo
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- CN218742465U CN218742465U CN202223300713.9U CN202223300713U CN218742465U CN 218742465 U CN218742465 U CN 218742465U CN 202223300713 U CN202223300713 U CN 202223300713U CN 218742465 U CN218742465 U CN 218742465U
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Abstract
The utility model discloses an energy-saving hydraulic classification system, which comprises a circulating water tank, a pressure pump, a classifier and a pressure energy recovery pump; the circulating water tank is sequentially connected with the pressure pump and the classifier through the pressure energy recovery pump, the discharge end of the classifier is divided into two parts, one part is a high-pressure fluid outlet pipe orifice at the upper end, and the other part is a coarse particle outlet valve at the lower end; wherein, the high-pressure fluid outlet pipe mouth of the upper end is connected to the filter and the pressure energy recovery pump, and the water in the circulating water tank is pressurized through pressure energy recovery, thereby realizing energy recovery. The system can recycle the pressure energy in the high-pressure fluid after hydraulic classification, thereby greatly saving energy consumption and being beneficial to green development.
Description
Technical Field
The utility model relates to a hydraulic classification system especially relates to an energy-conserving formula hydraulic classification system.
Background
The hydraulic classification system is widely applied to the industries of chemical engineering, mining and the like, and can classify insoluble solid particles according to different sizes and specific gravities so as to be applied to downstream processes. The settling rates in the liquid are different due to the different sizes and specific gravities of the solid particles. When the fluid velocity is greater than the settling velocity of the solid particles, the particles are carried away by the fluid; when the fluid velocity is less than the settling velocity of the solid particles, the particles are deposited on the lower layer of the classification box, and then the particle classification is completed.
In the working process of the classification system, the solid particles are screened and classified by the speed generated by the high-pressure fluid, the high-pressure fluid enters the classifier and then flows out of the classifier with the solid particles of a certain specification to complete particle classification. Because the pressure energy of the fluid flowing out of the classifier is often higher, if the fluid is not recycled, a large amount of pressure energy is wasted, great energy consumption is brought to the classification system, and the development of the classification system is seriously restricted.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides an energy-conserving formula hydraulic classification system. The system can recycle the pressure energy in the high-pressure fluid after hydraulic classification, thereby greatly saving energy consumption and being beneficial to green development.
In order to achieve the above object, the utility model adopts the following technical scheme:
an energy-saving hydraulic classification system comprises a circulating water tank, a pressure pump, a classifier and a pressure energy recovery pump;
the circulating water tank is communicated with a low-pressure fluid inlet pipe orifice of the pressure energy recovery pump through a clean low-pressure fluid pipe, and a pressurized fluid outlet pipe orifice of the pressure energy recovery pump is communicated with the pressurizing pump through a clean pressurized fluid pipe;
the pressure pump is communicated with a high-pressure fluid inlet pipe at the lower part of the classifier through a clean high-pressure fluid pipe; the classifier is in an inverted cone shape, one side of the upper end of the classifier is provided with a mixed particle inlet pipe orifice, and the other side of the upper end of the classifier is provided with a high-pressure fluid outlet pipe orifice and communicated with the filter through a particle-carrying high-pressure fluid pipe;
the outlet end of the filter is communicated with a high-pressure fluid inlet pipe orifice of the pressure energy recovery pump through a particle removing high-pressure fluid pipe; the pressure energy recovery pump is bilaterally symmetrical in structure and comprises a low-pressure shell and a high-pressure shell which are provided with independent cavities, and a low-pressure side impeller and a high-pressure side impeller which are respectively positioned in the low-pressure shell and the high-pressure shell and connected through a transmission shaft;
the low-pressure shell is also provided with a low-pressure fluid inlet pipe orifice and a pressurized fluid outlet pipe orifice; the high-pressure shell is also provided with a pressure reducing fluid outlet pipe orifice and a high-pressure fluid inlet pipe orifice.
In a preferred embodiment, a filter screen is arranged at one end of the clean low-pressure fluid pipe extending into the circulating water tank.
In a preferred embodiment, a fluid distributor is arranged at one end of the high-pressure fluid inlet pipe extending into the classifier.
In a preferred embodiment, the pressure reducing fluid outlet orifice is connected to a particle removal low pressure fluid line.
In a preferred embodiment, the classifier is provided with a coarse particle standing box at the lower end, and a coarse particle outlet valve is opened at one side of the coarse particle standing box.
In a preferred embodiment, a sand-blocking plate for slowing down the sedimentation of particles is arranged in the classifying box of the classifier.
In a preferred embodiment, the sand-resisting plate is a plurality of sand-resisting plates which are arranged in parallel with intervals.
In a preferred embodiment, the plurality of sand control plates are the same size or different sizes.
In a preferred embodiment, the sand control plate has an angle of inclination of 30 to 60 ° with respect to the horizontal.
In a preferred embodiment, the sand-blocking plate is fixedly connected to the inner wall of the classifying box through a support rod.
The utility model discloses a theory of operation does:
when the device works, the pressure pump is started, low-pressure fluid enters the pressure pump from the circulating water tank through the clean low-pressure fluid pipe, the pressure energy recovery pump and the clean pressurized fluid pipe, high-pressure fluid is formed under the action of the pressure pump and enters the classifier, and the high-pressure fluid is uniformly distributed in the classifier under the action of the fluid distributor.
Meanwhile, solid particles are fed into the classifier, the settling velocity of the particles is reduced under the action of the sand-blocking plate, and the screening time of the particles is prolonged. Under the action of high-pressure fluid, the particles with low settling velocity are carried away by the fluid, the particles with high settling velocity continue to settle downwards, are gathered in a coarse particle standing box at the lower end of the classifier, and are discharged into a circulating water tank under the action of the high-pressure fluid by opening a coarse particle outlet valve according to requirements. Because the coarse particles have larger particle size and are easy to settle, the fluid entering the circulating water tank can be continuously recycled as working fluid. When the coarse particles in the circulating water tank are too much, the cleaning can be unified.
After leaving the classifier, the high-pressure fluid containing a large amount of small particles enters a filter through a high-pressure fluid pipe carrying the particles to filter and remove the small particles and separate the small particles to obtain the high-pressure fluid, and the high-pressure fluid enters a pressure energy recovery pump through a high-pressure fluid pipe removing the particles.
Because the pressure energy of the high-pressure fluid is higher, the high-pressure side impeller is driven to start rotating, and the low-pressure side impeller is driven to rotate under the action of the transmission shaft. The low-pressure side impeller rotates at a high speed, water in the circulating water tank is sucked into the clean low-pressure fluid pipe and discharged from a pipe orifice of the pressurized fluid outlet, so that pressure energy exchange of the fluid is completed, the pressurized fluid is obtained, the fluid continuously passes through the pressurizing pump to obtain higher pressure, and then enters the classifier to continuously perform hydraulic classification work, and hydraulic classification of particles and recovery of pressure energy of the high-pressure fluid are realized.
The utility model provides an energy-conserving formula water conservancy grading system has simple structure, can carry out recycle's characteristics to high-pressure fluid pressure, is favorable to practicing thrift energy consumption and green sustainability development.
Drawings
Fig. 1 is a schematic diagram of the overall structure of an energy-saving water conservancy grading system.
FIG. 2 is a schematic diagram of the structure of the classifier.
Fig. 3 is a schematic diagram of a pressure energy recovery pump.
1. A pressure pump; 2. a clean high pressure fluid pipe; 3. a classifier; 4. a particle-carrying high pressure fluid line; 5. a filter; 6. a particle removal high pressure fluid pipe; 7. a pressure energy recovery pump; 8. a particle removal low pressure fluid pipe; 9. cleaning a low-voltage fluid pipe; 10. a circulating water tank; 11. a filter screen; 12. a coarse particle fluid tube; 13. a clean pressurized fluid pipe;
301. a coarse particle standing box; 302. a high pressure fluid inlet pipe; 303. a grading box; 304. a mixed particle inlet nozzle; 305. a high pressure fluid outlet nozzle; 306. a support bar; 307. a sand blocking net; 308. a fluid distributor; 309. a coarse particle outlet valve;
701. a low pressure shell; 702. a low pressure fluid inlet nozzle; 703. a low pressure side impeller; 704. a pressurized fluid outlet nozzle; 705. a high pressure fluid inlet nozzle; 706. a high pressure side impeller; 707. a pressure reducing fluid outlet orifice; 708. a drive shaft; 709. a high pressure shell.
Detailed Description
The following is a further explanation of the present invention through specific embodiments, and the embodiments of the present invention are only an explanation of the present invention, and do not limit the scope of the present invention.
[ example 1 ] A method for producing a polycarbonate
An energy-saving hydraulic classification system comprises a circulating water tank 10, a pressure pump 1, a classifier 3 and a pressure energy recovery pump 7;
the circulating water tank 10 is communicated with a low-pressure fluid inlet pipe orifice 702 of the pressure energy recovery pump 7 through a clean low-pressure fluid pipe 9, and a pressurized fluid outlet pipe orifice 704 of the pressure energy recovery pump 7 is communicated with the pressure pump 1 through a clean pressurized fluid pipe 13;
the pressure pump 1 is communicated with a high-pressure fluid inlet pipe 302 at the lower part of the classifier 3 through a clean high-pressure fluid pipe 2; the classifier 3 is in an inverted cone shape, one side of the upper end of the classifier is provided with a mixed particle inlet pipe orifice 304, and the other side of the classifier is provided with a high-pressure fluid outlet pipe orifice 305 which is communicated with the filter 5 through the particle-carrying high-pressure fluid pipe 4;
the outlet end of the filter 5 is communicated with a high-pressure fluid inlet pipe orifice 705 of a pressure energy recovery pump 7 through a particle removing high-pressure fluid pipe 6; the pressure energy recovery pump 7 has a bilaterally symmetrical structure, and comprises a low-pressure shell 701 and a high-pressure shell 709 which are provided with independent cavities, and a low-pressure side impeller 703 and a high-pressure side impeller 706 which are respectively positioned in the low-pressure shell 701 and the high-pressure shell 709 and are connected through a transmission shaft 708;
the low-pressure shell 701 is also provided with a low-pressure fluid inlet nozzle 702 and a pressurized fluid outlet nozzle 704; the high pressure shell 709 is further provided with a pressure reducing fluid outlet nozzle 707 and a high pressure fluid inlet nozzle 705.
A filter screen 11 is arranged at one end of the clean low-pressure fluid pipe 9 extending into the circulating water tank 10.
The high-pressure fluid inlet pipe 302 is provided with a fluid distributor 308 at one end extending into the classifier 3.
The pressure reducing fluid outlet port 707 is connected to the particle removal low pressure fluid line 8.
The lower end of the classifier 3 is provided with a coarse particle standing box 301, and one side of the coarse particle standing box 301 is provided with a coarse particle outlet valve 309.
A sand-blocking plate 307 for slowing down the sedimentation of particles is arranged in the classification box 303 of the classifier 3.
The sand-blocking plates 307 are arranged in parallel with a space between them. The sand blocking plates are different in size and distributed in a ladder shape, and the sand blocking plate at the end close to the mixed particle inlet pipe orifice 304 is the smallest.
The sand-blocking plate 307 has an inclination angle of 45 ° with the horizontal plane.
The sand-blocking plate 307 is fixedly connected to the inner wall of the grading box 303 through a support rod.
[ example 2 ]
The hydraulic classification system shown in the example 1 is used for hydraulically classifying solid particles with the particle size of 0.5-5mm, and the specific working process is as follows:
starting the pressure pump 1, the low-pressure fluid enters the pressure pump 1 from the circulating water tank 10 through the clean low-pressure fluid pipe 9, the pressure energy recovery pump 7 and the clean pressure fluid pipe 13, forms 0.1Mpa high-pressure fluid under the action of the pressure pump 1, enters the classifier 3, and is uniformly distributed in the classifier 3 under the action of the fluid distributor 308.
Meanwhile, solid particles with the particle size of 0.5-5mm are slowly and continuously fed into the classifier 3, the sedimentation speed of the particles is reduced under the action of the sand-blocking plate 307, and the screening time of the particles is prolonged. Under the action of the high-pressure fluid, the particles with low settling velocity are carried away by the fluid, and the particles with high settling velocity continue to settle downwards and are gathered in the coarse particle standing box 301 at the lower end of the classifier. Because the coarse particles have larger particle size and are easy to settle, the fluid entering the circulating water tank 10 can be continuously recycled as the working fluid.
After leaving the classifier 3, the high-pressure fluid containing a large amount of small particles enters a filter 5 through a particle-carrying high-pressure fluid pipe 4 to be filtered and removed of the small particles and separated to obtain 0.08MPa high-pressure fluid, and the high-pressure fluid enters a pressure energy recovery pump 7 through a particle-removing high-pressure fluid pipe 6.
Because the pressure energy of the high-pressure fluid is high, the high-pressure side impeller 706 is driven to rotate, and the low-pressure side impeller 703 is driven to rotate by the transmission shaft 708. The low pressure side impeller 703 rotates at a high speed, sucks the water in the circulating water tank 10 into the clean low pressure fluid pipe 9 and discharges the water from the pressurized fluid outlet pipe orifice 704, thereby completing the pressure energy exchange of the fluid, obtaining 0.05MPa pressurized fluid, the fluid continuously passes through the pressurizing pump 1 to obtain higher pressure, and then enters the classifier 3 to continuously perform hydraulic classification work, thereby realizing the hydraulic classification of particles and the recovery of the pressure energy of the high pressure fluid.
In the embodiment, after the hydraulic classification system operates for 8 hours, the coarse particle outlet valve 309 is opened to discharge the materials into the circulating water tank 10 under the action of high-pressure fluid, and the materials are collected and dried, wherein the particle size of the tested particles is 2-5mm; meanwhile, the small particles collected by the test filter 5 have a particle size of 0.5 to 2mm.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and additions can be made without departing from the method of the present invention, and these improvements and additions should also be considered as the protection scope of the present invention.
Claims (10)
1. An energy-saving hydraulic classification system is characterized by comprising a circulating water tank (10), a pressure pump (1), a classifier (3) and a pressure energy recovery pump (7);
the circulating water tank (10) is communicated with a low-pressure fluid inlet pipe orifice (702) of the pressure energy recovery pump (7) through a clean low-pressure fluid pipe (9), and a pressurized fluid outlet pipe orifice (704) of the pressure energy recovery pump (7) is communicated with the pressure pump (1) through a clean pressurized fluid pipe (13);
the pressure pump (1) is communicated with a high-pressure fluid inlet pipe (302) at the lower part of the classifier (3) through a clean high-pressure fluid pipe (2); the classifier (3) is in an inverted conical shape, one side of the upper end of the classifier is provided with a mixed particle inlet pipe orifice (304), and the other side of the upper end of the classifier is provided with a high-pressure fluid outlet pipe orifice (305) and is communicated with the filter (5) through a particle-carrying high-pressure fluid pipe (4);
the outlet end of the filter (5) is communicated with a high-pressure fluid inlet pipe orifice (705) of a pressure energy recovery pump (7) through a particle-removing high-pressure fluid pipe (6); the pressure energy recovery pump (7) is bilaterally symmetrical in structure and comprises a low-pressure shell (701) and a high-pressure shell (709) which are provided with independent cavities, and a low-pressure side impeller (703) and a high-pressure side impeller (706) which are respectively positioned in the low-pressure shell (701) and the high-pressure shell (709) and are connected through a transmission shaft (708);
the low-pressure shell (701) is also provided with a low-pressure fluid inlet pipe orifice (702) and a pressurized fluid outlet pipe orifice (704); the high-pressure shell (709) is also provided with a pressure reducing fluid outlet pipe orifice (707) and a high-pressure fluid inlet pipe orifice (705).
2. Energy-saving hydraulic classification system according to claim 1, characterized in that the end of the clean low-pressure fluid pipe (9) extending into the circulation tank (10) is provided with a filter screen (11).
3. An energy-saving hydraulic classification system according to claim 2, characterized in that one end of the high-pressure fluid inlet pipe (302) extending into the classifier (3) is provided with a fluid distributor (308).
4. The economized hydraulic classification system according to claim 1, characterized in that said pressure reducing fluid outlet nozzle (707) is connected to a particle removal low pressure fluid pipe (8).
5. The energy-saving hydraulic classification system according to claim 1, characterized in that the classifier (3) is provided with a coarse particle standing tank (301) at the lower end, and one side of the coarse particle standing tank (301) is provided with a coarse particle outlet valve (309).
6. The energy-saving hydraulic classification system according to any one of claims 1 to 5, characterized in that a sand-blocking plate (307) for slowing down the sedimentation of particles is arranged in the classification box (303) of the classifier (3).
7. The energy efficient hydraulic classification system of claim 6, wherein the sand stop plates (307) are a plurality of plates arranged in parallel with a space therebetween.
8. The energy efficient hydraulic classification system of claim 7, wherein the plurality of sand dams are the same or different sizes.
9. The energy efficient hydraulic classification system of claim 6, characterized in that the sand stop plate (307) has an angle of inclination of 30-60 ° to the horizontal.
10. An energy efficient hydraulic classification system according to claim 6, characterized in that the sand stop plate (307) is fixedly connected to the inner wall of the classification tank (303) by means of support bars.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223300713.9U CN218742465U (en) | 2022-12-09 | 2022-12-09 | Energy-saving hydraulic classification system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223300713.9U CN218742465U (en) | 2022-12-09 | 2022-12-09 | Energy-saving hydraulic classification system |
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| Publication Number | Publication Date |
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| CN218742465U true CN218742465U (en) | 2023-03-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202223300713.9U Active CN218742465U (en) | 2022-12-09 | 2022-12-09 | Energy-saving hydraulic classification system |
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| CN (1) | CN218742465U (en) |
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