CN202149030U - Roots vacuum pump - Google Patents
Roots vacuum pump Download PDFInfo
- Publication number
- CN202149030U CN202149030U CN201120223967U CN201120223967U CN202149030U CN 202149030 U CN202149030 U CN 202149030U CN 201120223967 U CN201120223967 U CN 201120223967U CN 201120223967 U CN201120223967 U CN 201120223967U CN 202149030 U CN202149030 U CN 202149030U
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- vacuum pump
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Abstract
A roots vacuum pump is formed by a water return pipe, a water cooling pipe, a flowmeter, a cooling water inlet valve, a vane wheel, a shell, a gas pipe, a gas-water separator, a water discharge pipe and a water discharge valve. The roots vacuum pump is characterized in that one end of the water cooling pipe is communicated with an outside water pipe, the flowmeter and the cooling water inlet valve are arranged between the water cooling pipe and the outside water pipe, the other end of the water cooling pipe enters the inside of the vacuum pump, the vane wheel connected with a motor shaft is arranged inside the shell, the gas pipe and the gas-water separator are respectively communicated with the shell, one end of the water return pipe is communicated with the water cooling pipe, the other end of the water return pipe is respectively communicated with the gas-water separator and the water discharge pipe, the water discharge valve is arranged on the water discharge pipe, and an automatic protection control valve is arranged on a pipeline of the water return pipe at a communication end of the water cooling pipe and on the position between the communication end of the water cooling pipe and a communication end of the gas-water separator and the water discharge pipe. The automatic protection control valve is added on a water return pipe of the existing liquid loop vacuum pump, and the roots vacuum pump achieves an unexpected result.
Description
Technical field
The utility model relates to a kind of blade fluid machinery, especially relates to a kind of liquid-ring Roots pump.
Background technique
The liquid-ring vacuum pump that use in present most of workshop is Siemens production, and specifications and models are 2BV6, and power of motor 15KW in process of production, finds to exist following problem:
1, because the effect of vacuum gets into vacuum pump again, the heat exchange effect of hot water and hot air is poor through the draining of heat exchange for vacuum pump;
2, vacuum efficiency is not high;
3, degree of vacuum is not high;
4, energy consumption is high;
5, inflow is uncontrollable, and the valve block of vacuum pump damages easily, and the motor resistance is excessive, transships easily, and noise is very big;
6, the vacuum pump temperature is higher, 40-60 ℃.
Above problem is the ubiquitous problem of such liquid-ring vacuum pump, because the existence of above-mentioned defective makes the use of such liquid-ring vacuum pump receive very big restriction, problem is demanded urgently being resolved.
The model utility content
The purpose of the utility model is intended to overcome the defective of existing technology, and a kind of liquid-ring Roots pump is provided.
The technological scheme that the utility model is dealt with problems is:
A kind of Roots pump is made up of return pipe, water-cooling tube, flowmeter, cooling water inlet valve, impeller, shell, tracheae, gas-liquid separator, waste pipe and drain valve; It is characterized in that: an end of water-cooling tube is communicated with outer water tube; Be provided with flowmeter and cooling water inlet valve therebetween, the other end gets in the vacuum pump, is provided with the impeller that is connected with motor shaft in the shell; Tracheae, gas-liquid separator are communicated with shell respectively; One end of return pipe is communicated with water-cooling tube, and the other end is communicated with gas-liquid separator and waste pipe respectively, and waste pipe is provided with drain valve; On the pipeline of return pipe, water-cooling tube is communicated with the position of holding and being communicated with between the end with gas-liquid separator, waste pipe automatic protection control valve is set.
Automatically the protection control valve is intended to control the water flow in the return pipe, can adopt existing various control valve.
The utility model is improvements over the prior art; Though just on the special position of existing liquid-ring vacuum pump return pipe; Increased a protection control valve automatically; But obtained beyond thought result, made that the efficient of an existing vacuum pump is suitable basically with the efficient of improving two preceding vacuum pumps, can reduce by a vacuum pump in the production process.It is suitable to improve equipment of final vacuum degree and original two equipment; The vacuum pump case temperature is reduced to 20-30 ℃ by original 50-75 ℃; The Temperature at discharging condensate of vacuum pump is by original 60-80 ℃; Be reduced to 20-33 ℃, vacuum pump no longer includes original sharp-pointed cry, and the cooling water inflow of vacuum pump is steady; And suddenly big or suddenly small unlike original cooling water inflow, exhaust steam pipe no longer includes and cooling water flow out of.
The utility model has the advantages that:
1, is suitable for heat exchange, the venting of the hot water and the hot air of vacuum system;
2, vibration is little, and noise is low;
3, mechanical friction loss is little, and driving power is little;
4, working space greatly for ease of maintenaince, expense is low, the life-span is long;
5, the vacuum pump temperature is lower;
6, energy-efficient.
Description of drawings
Fig. 1 is a kind of Roots pump structural representation of the utility model.
Among the figure: 1, protect control valve automatically, 2, return pipe, 3, water-cooling tube, 4, flowmeter, 5, the cooling water inlet valve, 6, impeller, 7, shell, 8, tracheae, 9, gas-liquid separator, 10, waste pipe, 11, drain valve.
Embodiment
A kind of Roots pump of the utility model, embodiment is:
A kind of Roots pump is made up of return pipe 2, water-cooling tube 3, flowmeter 4, cooling water inlet valve 5, impeller 6, shell 7, tracheae 8, gas-liquid separator 9, waste pipe 10, drain valve 11; One end of water-cooling tube 3 is communicated with outer water tube; Be provided with flowmeter 4 and cooling water inlet valve 5 therebetween, the other end gets in the vacuum pump, is provided with the impeller 6 that is connected with motor shaft in the shell 7; Tracheae 8, gas-liquid separator 9 are communicated with shell 7 respectively; One end of return pipe 2 is communicated with water-cooling tube 3, and the other end is communicated with gas-liquid separator 9 and waste pipe 10 respectively, and waste pipe 10 is provided with drain valve 11; Present embodiment only is on the pipeline of return pipe 2, and the position of asking that water-cooling tube 3 is communicated with end and is communicated with end with gas-liquid separator 9, waste pipe 10 is provided with automatic protection control valve 1.
The effect of cooling backwater: for practicing thrift cooling water; When cooling water is too much, directly drain, do not get into vacuum pump; Guarantee not have at short notice cooling water; Vacuum pump also has backwater to get in the housing, and it is too high that temperature can not rise very soon, thereby guarantee that equipment failure (as: valve block, secret, motor burning etc.) does not take place vacuum pump.
Main effect cooling back an automatic protection control valve 1 of water pipe 2 places installation is:
1, control cooling water backwater amount.In the use, it is half the to protect control valve 1 to open generally speaking automatically, adds that cooling water inlet valve 5 controls the water yield that gets into vacuum pump; If the vacuum pump case temperature is high, it is a little bit smaller to protect control valve 1 to close automatically. make backwater lack, the cooling water water inlet is opened bigger again; Make the water temperature that gets into the vacuum pump housing low; Thereby the temperature of guaranteeing vacuum pump is not very high, reduces the fault of equipment, increases the service life.
When 2, the cooling water inflow is excessive, can drain from return pipe equally.
Claims (1)
1. a Roots pump is made up of return pipe, water-cooling tube, flowmeter, cooling water inlet valve, impeller, shell, tracheae, gas-liquid separator, waste pipe and drain valve; It is characterized in that: an end of water-cooling tube is communicated with outer water tube; Be provided with flowmeter and cooling water inlet valve therebetween, the other end gets in the vacuum pump, is provided with the impeller that is connected with motor shaft in the shell; Tracheae, gas-liquid separator are communicated with shell respectively; One end of return pipe is communicated with water-cooling tube, and the other end is communicated with gas-liquid separator and waste pipe respectively, and waste pipe is provided with drain valve; On the pipeline of return pipe, water-cooling tube is communicated with the position of holding and being communicated with between the end with gas-liquid separator, waste pipe automatic protection control valve is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120223967U CN202149030U (en) | 2011-06-29 | 2011-06-29 | Roots vacuum pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120223967U CN202149030U (en) | 2011-06-29 | 2011-06-29 | Roots vacuum pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202149030U true CN202149030U (en) | 2012-02-22 |
Family
ID=45590091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120223967U Expired - Fee Related CN202149030U (en) | 2011-06-29 | 2011-06-29 | Roots vacuum pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202149030U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103334929A (en) * | 2013-07-31 | 2013-10-02 | 南通龙鹰真空泵业有限公司 | Liquid ring roots vacuum unit |
-
2011
- 2011-06-29 CN CN201120223967U patent/CN202149030U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103334929A (en) * | 2013-07-31 | 2013-10-02 | 南通龙鹰真空泵业有限公司 | Liquid ring roots vacuum unit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120222 Termination date: 20120629 |