CN211715404U - Centrifugal compressor volute accumulated liquid drainage structure for negative pressure evaporation - Google Patents
Centrifugal compressor volute accumulated liquid drainage structure for negative pressure evaporation Download PDFInfo
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- CN211715404U CN211715404U CN201921941603.6U CN201921941603U CN211715404U CN 211715404 U CN211715404 U CN 211715404U CN 201921941603 U CN201921941603 U CN 201921941603U CN 211715404 U CN211715404 U CN 211715404U
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Abstract
The utility model discloses a centrifugal compressor spiral case hydrops drainage structures for negative pressure evaporation, include: the top of the compressor volute is provided with a steam outlet, and the bottom of the compressor volute is provided with a volute liquid outlet; the compressor impeller is movably arranged in the compressor volute; one end of the inlet pipeline is provided with a steam inlet, and the other end of the inlet pipeline is communicated with the compressor volute; the liquid accumulation tank is provided with a water inlet, an air inlet and a flat pressure port, the water inlet is communicated with the spiral case liquid outlet, a first automatic switch valve is arranged between the water inlet and the spiral case liquid outlet, the flat pressure port is communicated with the inlet pipeline, a second automatic switch valve is arranged between the flat pressure port and the inlet pipeline, and a third automatic switch valve is arranged on the air inlet; and the drainage pump is communicated with the liquid accumulation tank. The utility model discloses realize the hydrops drainage in the automatic control compressor spiral case, installation convenient operation, and can solve compressor spiral case hydrops and take place the engineering running problem.
Description
Technical Field
The utility model relates to a vapor compressor's technical field especially relates to a centrifugal compressor spiral case hydrops drainage structures for negative pressure evaporation.
Background
The core component in the MVR evaporation treatment process in the chemical industry is commonly used in a centrifugal vapor compressor, the main working principle of the compressor is that secondary vapor in a crystallizer is pressurized through centrifugal force of an impeller rotating at a high speed to obtain a certain temperature rise, materials are heated in a circulating mode, low-temperature evaporation is needed for being suitable for heat-sensitive materials (such as food concentration, pharmacy and the like), when evaporation is carried out at the temperature lower than 80 ℃, the operation pressure in the system is about less than-0.06 MPa to be close to vacuum, the vapor is condensed on the wall of a circulating pipe during operation and condensed water carried by the vapor is accumulated in a volute of the compressor, due to the fact that negative pressure exists in the volute, accumulated liquid in the volute cannot be directly discharged under the atmospheric pressure, the operation rotating speed of the impeller of the centrifugal compressor can reach 30000r/min, serious safety accidents are caused when the impeller rotating at a high speed touches the accumulated liquid, and timely discharge of the accumulated liquid in the volute of the, Continuous operation is a necessary condition.
Disclosure of Invention
The problem that the accumulated liquid in the volute cannot be discharged in the existing steam compressor is solved, the volute accumulated liquid drainage structure of the centrifugal compressor for negative pressure evaporation is provided, the problem that the accumulated liquid in the volute in the steam compressor can be effectively prevented from running in an engineering mode, and the centrifugal compressor is convenient to manufacture and install and practical.
The specific technical scheme is as follows:
the utility model provides a centrifugal compressor spiral case hydrops drainage structures for negative pressure evaporation, includes: the top of the compressor volute is provided with a steam outlet, and the bottom of the compressor volute is provided with a volute liquid outlet;
the compressor impeller is movably arranged in the compressor volute;
the steam inlet is arranged at one end of the inlet pipeline, and the other end of the inlet pipeline is communicated with the compressor volute;
the liquid accumulation tank is provided with a water inlet, an air inlet and a flat pressure port, the water inlet is communicated with the spiral case liquid outlet, a first automatic switch valve is arranged between the water inlet and the spiral case liquid outlet, the flat pressure port is communicated with the inlet pipeline, a second automatic switch valve is arranged between the flat pressure port and the inlet pipeline, and a third automatic switch valve is arranged on the air inlet;
and the drainage pump is communicated with the liquid accumulation tank.
The volute effusion drainage structure of the centrifugal compressor for negative pressure evaporation is characterized in that the drainage pump is connected with a check valve.
The volute effusion drainage structure of the centrifugal compressor for negative pressure evaporation is characterized in that a liquid level sensor is arranged on the effusion tank.
Foretell negative pressure evaporates uses centrifugal compressor spiral case hydrops drainage structure, wherein, still include: and the automatic system is respectively in signal connection with the liquid level sensor, the first automatic switch valve, the second automatic switch valve, the third automatic switch valve, the check valve and the drainage pump.
In the volute effusion drainage structure of the centrifugal compressor for negative pressure evaporation, the other end of the inlet pipeline is opposite to the compressor impeller.
Foretell negative pressure evaporates uses centrifugal compressor spiral case hydrops drainage structure, wherein, still include: a compressor drive passing through the compressor volute and in driving connection with the compressor impeller.
The volute effusion drainage structure of the centrifugal compressor for negative pressure evaporation is characterized in that the effusion tank is positioned below the volute liquid outlet.
Foretell negative pressure evaporates uses centrifugal compressor spiral case hydrops drainage structure, wherein, still include: and the circulating evaporation system is communicated with the steam outlet.
The volute effusion drainage structure of the centrifugal compressor for negative pressure evaporation is characterized in that the flat pressure port is communicated with the inlet pipeline through a balance pipe.
The volute effusion drainage structure of the centrifugal compressor for negative pressure evaporation is characterized in that the volute liquid discharge port is communicated with the water inlet through a connecting pipe.
Compared with the prior art, the technical scheme has the positive effects that:
the utility model discloses can realize the hydrops drainage in the automatic control compressor spiral case at negative pressure MVR vaporization system, installation convenient operation, and can effectively solve compressor spiral case hydrops and take place the engineering operation problem.
Drawings
Fig. 1 is a schematic view of the overall structure of the volute effusion drainage structure of the centrifugal compressor for negative pressure evaporation of the present invention;
in the drawings: 1. a compressor volute; 2. a compressor impeller; 3. an inlet duct; 4. a liquid accumulation tank; 5. a steam outlet; 6. a volute discharge port; 7. a steam inlet; 8. a water inlet; 9. an air inlet; 10. flattening the opening; 11. a first automatic on-off valve; 12. a second automatic on-off valve; 13. a third automatic on-off valve; 14. draining pump; 15. a check valve; 16. a liquid level sensor; 17. driving a compressor; 18. a balance tube; 19. and (4) connecting the pipes.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific embodiments, but the present invention is not limited thereto.
Fig. 1 is the utility model relates to a centrifugal compressor spiral case hydrops drainage structures's overall structure schematic diagram for negative pressure evaporation, as shown in fig. 1, a centrifugal compressor spiral case hydrops drainage structures for negative pressure evaporation of preferred embodiment is shown, include: the compressor volute 1, the compressor impeller 2, the inlet pipeline 3 and the hydrops jar 4, the top of the compressor volute 1 is equipped with steam outlet 5, the bottom of the compressor volute 1 is equipped with the volute leakage fluid dram 6, the compressor impeller 2 activity is located in the compressor volute 1, the one end of the inlet pipeline 3 is equipped with steam inlet 7, the other end of the inlet pipeline 3 is linked together with the compressor volute 1, be equipped with water inlet 8 on the hydrops jar 4, air inlet 9 and concora crush mouth 10, water inlet 8 is linked together with the volute leakage fluid dram 6, and be equipped with first automatic switch valve 11 between water inlet 8 and the volute leakage fluid dram 6, concora crush mouth 10 is linked together with the inlet pipeline 3, and be equipped with second automatic switch valve 12 between concora crush mouth 10 and the inlet pipeline 3, be equipped with third automatic switch valve 13. Preferably, the third automatic switch valve 13 is a vacuum breaking automatic switch valve, which can smoothly discharge the water in the effusion tank 4 out of the system.
Further, as a preferred embodiment, the volute effusion drainage structure of the centrifugal compressor for negative pressure evaporation further comprises: and the drainage pump 14 is communicated with the liquid accumulation tank 4.
Further, as a preferred embodiment, a check valve 15 is connected to the drain pump 14. Preferably, the outlet of the drain pump 14 is equipped with a check valve 15, which prevents the back suction of the air pressure difference between the inside and outside, automatically maintaining the vacuum inside the system.
Further, as a preferred embodiment, the liquid level sensor 16 is disposed on the liquid accumulation tank 4.
Further, as a preferred embodiment, the volute effusion drainage structure of the centrifugal compressor for negative pressure evaporation further comprises: and an automatic system (not shown in the figure) which is respectively connected with the liquid level sensor 16, the first automatic switch valve 11, the second automatic switch valve 12, the third automatic switch valve 13, the check valve 15 and the drainage pump 14 in a signal mode.
The above is merely an example of the preferred embodiments of the present invention, and the embodiments and the protection scope of the present invention are not limited thereby.
The utility model discloses still have following embodiment on above-mentioned basis:
in a further embodiment of the present invention, please continue to refer to fig. 1, the other end of the inlet pipe 3 is opposite to the compressor impeller 2.
The utility model discloses a further embodiment, negative pressure evaporation still includes with centrifugal compressor spiral case hydrops drainage structures: a compressor drive 17, the compressor drive 17 passing through the compressor volute 1 and in driving connection with the compressor wheel 2.
In a further embodiment of the present invention, the effusion tank 4 is located below the volute drain outlet 6. Preferably, the liquid accumulation can automatically flow into the liquid accumulation tank 4.
The utility model discloses a further embodiment, negative pressure evaporation still includes with centrifugal compressor spiral case hydrops drainage structures: and a circulating evaporation system (not shown in the figure), wherein the circulating evaporation system is communicated with the steam outlet 5.
In a further embodiment of the present invention, the flat pressing port 10 is connected to the inlet pipe 3 through a balance pipe 18. Preferably, a balance pipe 18 is provided to smoothly discharge the accumulated water in the compressor volute 1 into the accumulated liquid tank 4.
In a further embodiment of the present invention, the spiral case drain port 6 is connected to the water inlet 8 through the connecting pipe 19.
The utility model discloses compressor drive compressor impeller carries out high-speed rotation and inhales the inside work of doing of compressor with the interior flash steam of inlet pipe through steam inlet, and the steam that the compression was accomplished obtains certain temperature rise and gets into circulation vaporization system through steam outlet.
The utility model discloses at the negative pressure operation in-process, open first automatic switch valve 11 and second automatic switch valve 12 simultaneously, and third automatic switch valve 13 and check valve 15 are in the closed condition, because water inlet 8 is connected to spiral case leakage fluid dram 6, flat pressure dram 10 inserts inlet pipeline 3, and the hydrops intercommunication in inlet pipeline 3, compressor spiral case 1 and hydrops jar 4 forms negative pressure circulation system, and the hydrops can be collected in the hydrops jar through negative pressure circulation system under atmospheric pressure.
The utility model discloses a hydrops jar 4 is provided with level sensor 16, can feed back automatic system with the liquid level in the hydrops jar 4, close first automatic switch valve 11 and second automatic switch valve 12 simultaneously when reaching high liquid level, open third automatic switch valve 13, form the malleation in the hydrops jar 4, open the drain pump automatically and discharge the hydrops, self-closing drain pump 14 and third automatic switch valve 13 when flowing back low liquid level, and open first automatic switch valve 11 and second automatic switch valve 12 simultaneously, begin the hydrops.
The utility model discloses can realize the hydrops drainage in automatic control compressor spiral case 1 at negative pressure MVR vaporization system, installation convenient operation, and can effectively solve compressor spiral case hydrops and take place the engineering operation problem.
The above description is only an example of the preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and those skilled in the art should be able to realize the equivalent alternatives and obvious variations of the present invention.
Claims (10)
1. The utility model provides a centrifugal compressor spiral case hydrops drainage structures for negative pressure evaporation which characterized in that includes:
the top of the compressor volute is provided with a steam outlet, and the bottom of the compressor volute is provided with a volute liquid outlet;
the compressor impeller is movably arranged in the compressor volute;
the steam inlet is arranged at one end of the inlet pipeline, and the other end of the inlet pipeline is communicated with the compressor volute;
the liquid accumulation tank is provided with a water inlet, an air inlet and a flat pressure port, the water inlet is communicated with the spiral case liquid outlet, a first automatic switch valve is arranged between the water inlet and the spiral case liquid outlet, the flat pressure port is communicated with the inlet pipeline, a second automatic switch valve is arranged between the flat pressure port and the inlet pipeline, and a third automatic switch valve is arranged on the air inlet;
and the drainage pump is communicated with the liquid accumulation tank.
2. The centrifugal compressor volute effusion drainage structure for negative pressure evaporation of claim 1, wherein a check valve is connected to the drain pump.
3. The volute casing liquid accumulation and drainage structure of the centrifugal compressor for negative pressure evaporation according to claim 2, wherein a liquid level sensor is arranged on the liquid accumulation tank.
4. The centrifugal compressor volute effusion drainage structure for negative pressure evaporation of claim 3, further comprising: and the automatic system is respectively in signal connection with the liquid level sensor, the first automatic switch valve, the second automatic switch valve, the third automatic switch valve, the check valve and the drainage pump.
5. The centrifugal compressor volute effusion drainage arrangement of claim 1, wherein the other end of the inlet duct is directly opposite the compressor impeller.
6. The centrifugal compressor volute effusion drainage structure for negative pressure evaporation of claim 1, further comprising: a compressor drive passing through the compressor volute and in driving connection with the compressor impeller.
7. The volute casing accumulated liquid drainage structure of the centrifugal compressor for negative pressure evaporation according to claim 1, wherein the accumulated liquid tank is located below the volute casing liquid discharge port.
8. The centrifugal compressor volute effusion drainage structure for negative pressure evaporation of claim 1, further comprising: and the circulating evaporation system is communicated with the steam outlet.
9. The centrifugal compressor volute effusion drainage structure for negative pressure evaporation of claim 1, wherein the flat pressure port communicates with the inlet duct through a balance tube.
10. The centrifugal compressor volute accumulated liquid drainage structure for negative pressure evaporation according to claim 1, wherein the volute liquid discharge port is communicated with the water inlet through a connecting pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921941603.6U CN211715404U (en) | 2019-11-11 | 2019-11-11 | Centrifugal compressor volute accumulated liquid drainage structure for negative pressure evaporation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921941603.6U CN211715404U (en) | 2019-11-11 | 2019-11-11 | Centrifugal compressor volute accumulated liquid drainage structure for negative pressure evaporation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211715404U true CN211715404U (en) | 2020-10-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921941603.6U Active CN211715404U (en) | 2019-11-11 | 2019-11-11 | Centrifugal compressor volute accumulated liquid drainage structure for negative pressure evaporation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211715404U (en) |
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2019
- 2019-11-11 CN CN201921941603.6U patent/CN211715404U/en active Active
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