CN2462437Y - Valve-less self-controlling liquid constant level device - Google Patents
Valve-less self-controlling liquid constant level device Download PDFInfo
- Publication number
- CN2462437Y CN2462437Y CN 00223259 CN00223259U CN2462437Y CN 2462437 Y CN2462437 Y CN 2462437Y CN 00223259 CN00223259 CN 00223259 CN 00223259 U CN00223259 U CN 00223259U CN 2462437 Y CN2462437 Y CN 2462437Y
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- Prior art keywords
- liquid
- constant level
- permanent position
- model
- utility
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- Expired - Fee Related
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Abstract
The utility model provides a valve-less self-controlling liquid constant level device, which comprises a constant level box, and a liquid inlet and a liquid outlet are arranged on the constant level box. The utility model is characterized in that the liquid inlet of the constant level box is connected with a hermetic liquid storage box through pipelines, and the top parts of the two boxes are communicated with each other through automatic air inlet pipes. The constancy of liquid level in the constant level box can be automatically held under the condition of no valve control, and therefore, the liquid with constant level and equal quantity can be supplied to liquid feeding places. The utility model has the advantages of simple structure, reliable operation, less investment of facilities, low running cost, long service life, accuracy of the liquid level control, etc.; furthermore, the utility model can be widely used in liquid infusion places with constant level and constant quantity and is an ideal liquid infusion device.
Description
The utility model relates to the permanent position of a kind of liquid device, the especially a kind of permanent position of liquid automatic control device that need not valve control.
In the prior art, the permanent position control of liquid has mechanical valve-type control or Electronic Control etc. multiple, and machinery valve control mainly drives main valve directly or indirectly by lever and ball float and opens; Electronic Control adopts sensor and controller control main valve to open more, thereby realizes liquid level control.Machinery valve frequently influences serviceable life of valve because of its mechanical motion, and easy to leak, the operating cost height.Electronic Control is because of the quality problems easy break-down of electronic component, poor reliability.The permanent position of therefore existing liquid device can not satisfy the demand in market.
The purpose of this utility model is to overcome the deficiency of prior art, provides a kind of simple in structure, and the long service life level control (LC) is accurate, the permanent position of the liquid valveless automatic control device that reliability is high.
The utility model is realized by following technical proposal: it comprises permanent position case, and a permanent position case is provided with inlet and liquid outlet, it is characterized in that the inlet of permanent position case connects airtight fluid storage tank by pipeline, and two casees top is communicated with by automatic draft tube.One end of described automatic draft tube is located at the bottom of airtight fluid storage tank, and the other end is located in the case of permanent position, and the liquid level height in the case of the determining positions of this port perseverance position, so that air enters in the airtight fluid storage tank through automatic draft tube.Described airtight fluid storage tank top is provided with the liquid feeding vent port, and by the sealing of the lid on it, so that liquid make-up as required, and discharges gas in the case in the process of liquid feeding.Described airtight fluid storage tank casing is provided with the liquid level meter, is used for the height of liquid level in the show case.On the pipeline between permanent position case inlet and the airtight fluid storage tank liquid outlet, be provided with operation valve, prevent when being used for fluid infusion that the liquid in the airtight fluid storage tank from flowing into permanent position case.
The utility model compared with prior art has following advantage and effect: owing to can keep the constant of the interior liquid level of permanent position case under the situation that such scheme makes the utility model not need valve to control during operation automatically, thereby liquid to the feed flow place for permanent position, constant, the utlity model has simple in structure, easy to operate, safe and reliable to operation, equipment investment is few, running expense is low, long service life, characteristics such as level control (LC) is accurate, can be widely used in permanent position, constant transfusion place, be a kind of comparatively desirable permanent position, constant infusion set.
Fig. 1 is the structural representation of the utility model.
Below in conjunction with accompanying drawing the utility model is described further, is not limited to this but hold within the utility model.
Among the figure, 1 is airtight fluid storage tank, 2 is the liquid level meter, is located at casing one side, and 3 is thermofin, be located at around the casing, 4 is the liquid feeding vent port, is located at airtight fluid storage tank top, and the hole is provided with gland bonnet 5,6 is automatic draft tube, its mouth of pipe 15 places closed box 1 bottom, and the mouth of pipe 16 of the other end places in the case of permanent position, and its height can determine the height of permanent position case liquid level, 7 is suction tube, 8 is permanent position case, and 9 for being located at the liquid outlet of permanent position lower box part, and 10 for being located at the inlet of permanent position upper box part, by pipeline 11, valve 12 links to each other with airtight fluid storage tank liquid outlet 13, and 14 for being located at the standby mouth of airtight fluid storage tank bottom.
The course of work of the present utility model is: when to airtight fluid storage tank 1 dosing, valve-off 12, inject liquid from liquid feeding vent port 4, screwing hermetic lid 5 when waiting to fill with, open valve 12, liquid flows in the empty permanent position case 8, then air is from the mouth of pipe 15, through manage 6, the mouth of pipe 14 enters airtight fluid storage tank, when liquid level reached the mouth of pipe 15 in the case 8 of permanent position, liquid was sealed this mouth of pipe rapidly, stops air to enter in the airtight fluid storage tank 1, when treating that the gas negative pressure of airtight fluid storage tank 1 and fluid pressure maintain an equal level, no longer inject liquid to permanent position case 8.When the liquid in the case of permanent position makes liquid level be lower than the mouth of pipe 15 through liquid outlet 9 outflows or through suction tube 7 extractions, air is once more from the mouth of pipe 15, through manage 6, the mouth of pipe 14 enters airtight fluid storage tank, when liquid make-up is sealed the mouth of pipe 15 in the case of permanent position, and stop fluid injection, so automatically above-mentioned repeatedly fluid injection process makes case 8 interior liquid levels in permanent position keep constant, thereby realizes permanent position, constant conveying liquid.
Claims (4)
1, the permanent position of a kind of liquid valveless automatic control device comprises permanent position case, and a permanent position case is provided with inlet and liquid outlet, it is characterized in that the inlet of permanent position case connects airtight fluid storage tank by pipeline, and two casees top is communicated with by automatic draft tube.
2, the permanent position of liquid valveless automatic control according to claim 1 device is characterized in that an end of described automatic draft tube is located at the bottom of airtight fluid storage tank, and the other end is located in the case of permanent position.
3, the permanent position of liquid valveless automatic control according to claim 1 device is characterized in that described airtight fluid storage tank top is provided with the liquid feeding vent port, and the hole is provided with gland bonnet.
4, the permanent position of liquid valveless automatic control according to claim 1 device is characterized in that being provided with operation valve on the pipeline between permanent position case inlet and the airtight fluid storage tank liquid outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00223259 CN2462437Y (en) | 2000-06-09 | 2000-06-09 | Valve-less self-controlling liquid constant level device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00223259 CN2462437Y (en) | 2000-06-09 | 2000-06-09 | Valve-less self-controlling liquid constant level device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2462437Y true CN2462437Y (en) | 2001-11-28 |
Family
ID=33587839
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00223259 Expired - Fee Related CN2462437Y (en) | 2000-06-09 | 2000-06-09 | Valve-less self-controlling liquid constant level device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2462437Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101943918A (en) * | 2010-09-17 | 2011-01-12 | 哈尔滨工业大学 | High-precision automatic control system for constant water level |
| CN105771341A (en) * | 2016-04-26 | 2016-07-20 | 合肥通用机械研究院 | Constant-water-level filtration and back flush integrated device and control method |
-
2000
- 2000-06-09 CN CN 00223259 patent/CN2462437Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101943918A (en) * | 2010-09-17 | 2011-01-12 | 哈尔滨工业大学 | High-precision automatic control system for constant water level |
| CN105771341A (en) * | 2016-04-26 | 2016-07-20 | 合肥通用机械研究院 | Constant-water-level filtration and back flush integrated device and control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |