CN204298890U - Overflow type pressure-stabilizing tank - Google Patents
Overflow type pressure-stabilizing tank Download PDFInfo
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- CN204298890U CN204298890U CN201420750903.7U CN201420750903U CN204298890U CN 204298890 U CN204298890 U CN 204298890U CN 201420750903 U CN201420750903 U CN 201420750903U CN 204298890 U CN204298890 U CN 204298890U
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Abstract
The utility model relates to a kind of overflow type pressure-stabilizing tank, for flow measurement standard set-up, comprise tank body and be arranged on the baffle plate bottom tank interior, described tank body is provided with water inlet, delivery port, discharge outlet, supporting leg and Pressure gauge, installing overflow pipe at described tank body top is communicated with in tank and outside tank, arrange balancing weight at overflow pipe top, can ensure that in tank, pressure maintains a steady state value all the time, this steady state value is determined by balancing weight weight.Structure of the present utility model is simple, and do not need to build high-order water tower and just can realize the voltage regulation result that overflow type pressure-stabilizing device reaches, cost is lower, easy to implement, is applicable to the technical field higher to constant pressure requirement.
Description
Technical field
The utility model relates to a kind of pressurizing vessel, is specifically related to a kind of overflow type pressure-stabilizing tank.
Background technology
Flow measurement standard set-up is widely used in calibrating and the calibration of flowmeter.In calibrating and calibration process, be maintained by stablizing of the flow of instrument most important, discharge stability is also an important performance indexes of device.For liquid flow mearuement standard set-up, general water pump is as the power source of fluid, and the change of power supply grid voltage and frequency directly affects the velocity of rotation of motor, causes the change of water pump discharge pressure and flow, and its main manifestations is low frequency pulsating; In addition, due to the discontinuity of water pump blade, running up with under the impact of centrifugal action, the flow of exit of pump can produce larger dither.In order to reduce the pulsation of flow, need in liquid flow mearuement standard set-up to take voltage stabilization and current stabilization measure.
In the prior art, the common method of voltage stabilization and current stabilization is primarily of two kinds, the first is water tower type voltage stabilizing method, mainly utilize the elevated tank of a carry potential overflow to obtain a stable free surface, gravity by the following water of liquid level provides stable pressure of supply water, the method voltage regulation result is good, but high-order water tower needs to set up 40 ~ 50 meters high usually, and construction cost is very high; The second adopts vacuum tank voltage stabilizing method, the method utilizes the air bag on the inner complicated flow guide system of vacuum tank and vacuum tank top to hold and cushions and absorption of pulsing the pressure flowing through fluid, realize voltage stabilizing, but the stabilizing power of air bag to flow stream pressure is limited, the desired constant state of force value can not be realized simultaneously.A kind of gas-water separation formula vacuum tank such as, announced in CN 202237395 U, water level Inductance valve and vent valve is provided with at tank body top, when pressure in tank increase make water level be reduced to setting value when, open vent valve and release gas, between vent valve one open-one close, fluid pressure in tank can produce fluctuation, can not ensure the constancy of fluid pressure.
Utility model content
In order to solve the problem, task of the present utility model is to provide a kind of overflow type pressure-stabilizing tank, can reach the voltage regulation result of water tower type, and cost is lower.The utility model adopts following technical scheme:
A kind of overflow type pressure-stabilizing tank, comprise tank body, described tank body is provided with water inlet (11), delivery port (12), one overflow pipe installing hole (16) is set at described tank body top, one overflow pipe (3) is set in overflow pipe installing hole, being communicated with in tank and outside tank, arranging on overflow pipe top for keeping in tank pressure at the balancing weight (4) of a steady state value;
This novel beneficial effect is: by installing overflow pipe and balancing weight on vacuum tank, the lower gravity of pressure and balancing weight in tank that keeps is suitable in working order can to make vacuum tank, effective raising precision of voltage regulation, required force value can be regulated by the weight changing balancing weight, and need not elevated tank be used, cost is low, and structure is simple, easy to implement, can be used in requiring higher technical field to constant pressure.
Accompanying drawing explanation
Fig. 1 is embodiment 1 cross-sectional schematic;
Fig. 2 is embodiment 2 cross-sectional schematic.
Detailed description of the invention
Below in conjunction with accompanying drawing, clear, complete description is carried out to the utility model.
A kind of overflow type pressure-stabilizing tank, comprises tank body 1, described tank body is arranged water inlet 11 and delivery port 12.Preferably, the height of described delivery port 12 higher than the height of water inlet 11, and arranges a vertical baffle 2 bottom tank interior.More preferably, described tank body 1 is also provided with the Pressure gauge of pressure in the discharge outlet 13 drained the water away, the supporting leg supporting tank body 1 and display tank.
Key of the present utility model is: arrange an overflow pipe installing hole 16 at described tank body top, one overflow pipe 3 is set in overflow pipe installing hole 16, be communicated with in tank and outside tank, and arrange for keeping in tank pressure at the balancing weight 4 of a steady state value on overflow pipe top, can realize remaining that the gravity of pressure and balancing weight in tank is suitable by the effect of overflow pipe and balancing weight, just can random pressure in regulating tank by the weight that changes balancing weight, and need not use with elevated tank, implementation is very simple.
Embodiment of the present utility model has multiple, and the preferred wherein two kinds of situations of this explanation are set forth further.
Embodiment 1: see Fig. 1, described overflow pipe 3 is made up of pipeline section 31 and supporting part, top 32.Described pipeline section 31 is hollow cylindrical form, and gos deep into tank interior one segment distance, makes the air of tank internal upper part form air bag, plays pressure stabilization function to a certain degree; The inner chamber of supporting part, described top 32 is the truncated conical shape that increases gradually of diameter from the bottom up; Described balancing weight 4 is a spherical shape, can be made for georama structure, and add suitable object in inside and regulate balancing weight weight, described balancing weight is placed in supporting part, top 32, keeps sealing identical state when vacuum tank does not work with supporting part, top.
Embodiment 2: see Fig. 2, described overflow pipe 3 is made up of pipeline section 31, and described pipeline section 31 is hollow cylindrical shape, and gos deep into tank interior one segment distance, makes the air of tank internal upper part form air bag, plays pressure stabilization function to a certain degree.Have a newel 41 in described balancing weight to be fixed by reinforcement with overflow pipe inside, described balancing weight is positioned on the top of pipeline section 31 by newel 41, keeps sealing identical state when vacuum tank does not work with pipeline section 31 top.
In working order, start vacuum tank, water inlet end 11 place has current to enter, with the increase of rate of water added, on the right of baffle plate, water level raises gradually, and current move upward with bubble, when water level arrives height of baffle plate, current drop down, and in this motion process, the bubble disengagement water body in current is collected at tank body top, the air existed in tank is combined and forms air bag, when the water level on the baffle plate left side is higher than water side, fluid flows out, and the bubble now in fluid significantly reduces.
Along with inflow constantly increases, tank body top gas increases gradually, air bag pressure increases, when pressure increases to suitable with the gravity of balancing weight, balancing weight starts to depart from the overflow pipe mouth of pipe, gas in tank or overflow, make the pressure values needed for suitable with balancing weight gravity of the pressure all-the-time stable in vacuum tank.
When balancing weight departs from overflow pipe mouth of pipe place, mean that in tank, pressure is in required pressure values; When balancing weight is sealed in the overflow pipe mouth of pipe, mean that now pressure is less than required pressure values in tank, concrete pressure values is uncertain, needs to continue to wait for.
The air bag fluid pressure in vacuum tank that can not only utilize described overflow type pressure-stabilizing tank plays stabilization to a certain extent, key is on vacuum tank, install overflow pipe and balancing weight, overflow situation under making it remain on duty, just can accurately keep tank fluid pressure at a steady state value, be desirable low cost, high-precision voltage stabilizing equipment.
The utility model is applicable to require higher technical field, such as ultrasonic water meter flow accuracy detection field to force value constancy.
Claims (6)
1. an overflow type pressure-stabilizing tank, comprise tank body, described tank body is provided with water inlet (11), delivery port (12), it is characterized in that: an overflow pipe installing hole (16) is set at described tank body top, one overflow pipe (3) is set in overflow pipe installing hole, being communicated with in tank and outside tank, arranging on overflow pipe top for keeping in tank pressure at the balancing weight (4) of a steady state value.
2. a kind of overflow type pressure-stabilizing tank according to claim 1, is characterized in that: described delivery port position is higher than water inlet, and arrange a baffle plate at described tank interior lower position, described height of baffle plate is higher than delivery port position.
3. a kind of overflow type pressure-stabilizing tank according to claim 2, is characterized in that: described overflow pipe gos deep into tank interior one segment distance.
4. a kind of overflow type pressure-stabilizing tank according to claim 1,2 or 3, is characterized in that: described overflow pipe is made up of pipeline section (31) and supporting part, top (32), and described balancing weight is placed in supporting part, top.
5. a kind of overflow type pressure-stabilizing tank according to claim 1,2 or 3, is characterized in that: described overflow pipe is made up of pipeline section (31), and inner tube segment has newel (41), and described balancing weight is fixedly placed in above pipeline section by newel.
6. a kind of overflow type pressure-stabilizing tank according to claim 1,2 or 3, is characterized in that: the water tank installing the water that one overflows for splendid attire below overflow pipe and balancing weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420750903.7U CN204298890U (en) | 2014-12-04 | 2014-12-04 | Overflow type pressure-stabilizing tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420750903.7U CN204298890U (en) | 2014-12-04 | 2014-12-04 | Overflow type pressure-stabilizing tank |
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| Publication Number | Publication Date |
|---|---|
| CN204298890U true CN204298890U (en) | 2015-04-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420750903.7U Active CN204298890U (en) | 2014-12-04 | 2014-12-04 | Overflow type pressure-stabilizing tank |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106979936A (en) * | 2016-01-18 | 2017-07-25 | 南开大学 | It is a kind of for water quality detection without tube wall flow cell device |
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2014
- 2014-12-04 CN CN201420750903.7U patent/CN204298890U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106979936A (en) * | 2016-01-18 | 2017-07-25 | 南开大学 | It is a kind of for water quality detection without tube wall flow cell device |
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