CN204841742U - Automatic fluid infusion constant temperature cistern - Google Patents
Automatic fluid infusion constant temperature cistern Download PDFInfo
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- CN204841742U CN204841742U CN201520647468.XU CN201520647468U CN204841742U CN 204841742 U CN204841742 U CN 204841742U CN 201520647468 U CN201520647468 U CN 201520647468U CN 204841742 U CN204841742 U CN 204841742U
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- constant temperature
- temperature fluid
- fluid bath
- liquid level
- reserve tank
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Abstract
The utility model provides an automatic fluid infusion constant temperature cistern, a serial communication port, include: the constant temperature cistern, splendid attire working medium, the liquid reserve tank is stored and is treated additional working medium, the fluid infusion pump, one end and liquid reserve tank intercommunication, the other end is linked together with the constant temperature cistern, in the income of the working medium pump in liquid reserve tank constant temperature cistern, a liquid level measurement section of thick bamboo is linked together with the constant temperature cistern, measures the liquid level in the constant temperature cistern, the metal floater is arranged in the liquid level of a liquid level measurement section of thick bamboo, non -contact liquid level switch sets up in the top of a liquid level measurement section of thick bamboo, and when liquid level in measuring a section of thick bamboo was less than the predetermined value, non -contact liquid level switch opened the fluid infusion pump, to inputing working medium in the constant temperature cistern. The utility model discloses an automatic fluid infusion constant temperature cistern can carry out automatic fluid infusion, stopped the occurence of failures such as smoldering, catch fire that artifical fluid infusion probably caused, has guaranteed thermotank work safety and the life who has prolonged equipment.
Description
Technical field
The utility model relates to a kind of automatic liquid supply constant temperature fluid bath, belongs to temperature measurement technical field.
Background technology
Thermostat is common temperature element (TE calibration equipment.Thermostat is widely used in industrial and agricultural production field and scientific research experiment field.According to the operating temperature range of constant temperature, thermostat can be divided into standard constant temperature bath (-100 DEG C ~ 300 DEG C) and temperature thermostatic bath of high (>300 DEG C).Thermostat operating temperature range of the present utility model is 50 DEG C ~ 300 DEG C, belongs to standard constant temperature bath one class.According to the difference of thermostat working media, thermostat can be categorized as working media groove and air groove.Common constant temperature working media groove is tank and oil groove.Thermostat of the present utility model belongs to oil groove one class.
The temperature control of thermostat working media is generally all heated by resistance wire, compression mechanism cold-peace atmospheric environment naturally cools or heats to realize.When set operating temperature is lower than environment temperature, temperature controls to be realized by compressor cooling.When set operating temperature is higher than environment temperature, then temperature controls to be realized by Resistant heating.
Produce at temperature element (TE and in temperature measurement calibration operation, often need repeatedly to raise or reduce thermostat operation setup thermostat temperature.Such as, in temperature control program, set proving temperature (DEG C) and be followed successively by 50,100,150,100,50.When design temperature successively rises, thermostatic control transient process is shorter.But when design temperature successively declines, thermostatic control transient process will be looked and be made us being difficult to stand.This is because atmospheric environment nature cooling effectiveness is very low, to cause the accumulation of heat of thermostat working medium and thermostat heat-insulation layer to be distributed very slow.For this reason, the cooling control ability promoting thermostat is needed especially.
ZL200710047126.4 patent proposes the method utilizing compressor cooling to promote the cooling control ability of thermostat.The method first uses the temperature of compressor cooling controlled cooling model tank lower than set lowest temperature, then reduce the Temperature of Working of thermostat with the water of bosh.The pressure liquid cooling of the method can make cooling rate than improving nearly 20 times during Temperature fall, thus temperature control process time is shortened greatly, and power consumption obviously reduces.But utilize compressor cooling, add the complexity of thermostat equipment and also have environmental issue, the difficulty also brought system cloud gray model simultaneously and safeguard.
When using constant temperature fluid bath to carry out temperature element (TE production and temperature measurement calibration operation, often run into thermostat Liquid level problem.General constant temperature fluid bath in use, because working medium thermal expansion coefficients is comparatively large, produces and overflows, and causes liquid level after cooling and reduces; In addition due to frequent use, or a large amount of calibrating elements, tested element surface takes the oil of trace out of, causes thermostat liquid level equally and reduces.Because user does not supplement working medium in time, thus make electroheat member be exposed on liquid level, cause and smolder or firing accident, at least reduce equipment life.Therefore, the functional requirement of constant temperature fluid bath automatic liquid supply is affirmative.
Utility model content
The purpose of this utility model is to provide a kind of automatic liquid supply constant temperature fluid bath, to solve the problem.
The utility model have employed following technical scheme:
A kind of automatic liquid supply constant temperature fluid bath, is characterized in that, comprising: constant temperature fluid bath, splendid attire working media; Liquid reserve tank, stores working media to be supplemented; Fluid infusion pump, one end is communicated with liquid reserve tank, and the other end is connected with constant temperature fluid bath, pumps in constant temperature fluid bath by the working media in liquid reserve tank; Level gauging cylinder, is connected with constant temperature fluid bath, measures the liquid level in constant temperature fluid bath; Metal ball float, is arranged on the liquid level of level gauging cylinder; Non-Touching Type Liquid Level Switch, is arranged at the top of level gauging cylinder, and when the liquid level in measuring cylinder is lower than predetermined value, Non-Touching Type Liquid Level Switch opens fluid infusion pump, input service medium in constant temperature fluid bath.
In addition, automatic liquid supply constant temperature fluid bath of the present utility model, can also have such feature, also comprise: forced air cooled tube and air inducing blower fan, forced air cooled tube is arranged in constant temperature fluid bath, and an end entrance of forced air cooled tube communicates with air, and the other end of forced air cooled tube connects with air inducing blower fan.
In addition, automatic liquid supply constant temperature fluid bath of the present utility model, can also have such feature, and wherein, constant temperature fluid bath inside has stirring flow region, and forced air cooled tube is arranged on and stirs in flow region, divides trisection or quartering angle symmetrical to arrange by stirring circle.
In addition, automatic liquid supply constant temperature fluid bath of the present utility model, can also have such feature, and wherein, the volume of liquid reserve tank is 1/1 to eight/4th of working medium volume in constant temperature fluid bath.
In addition, automatic liquid supply constant temperature fluid bath of the present utility model, can also have such feature, and wherein, level gauging cylinder is square.
In addition, automatic liquid supply constant temperature fluid bath of the present utility model, can also have such feature, also have: overflow pipe, and upper end open upper end open in constant temperature fluid bath is placed in constant temperature fluid bath upper fluid level limit level, and lower ending opening is in liquid reserve tank.
The beneficial effect of utility model
According to automatic liquid supply constant temperature fluid bath of the present utility model, owing to having forced air cooled tube and air inducing blower fan, therefore introduce ambient wind and force cooling way, control ability of thus lowering the temperature is stronger.
In addition, because forced air cooled tube is looped around around agitator, and forced air cooled tube has the passage allowing working media flow through, make in the process stirred, in constant temperature fluid bath, the working media of other position constantly contacts with forced air cooled tube, improves the efficiency of cooling.
Because the utility model have employed level gauging cylinder, metal ball float and Non-Touching Type Liquid Level Switch, when in constant temperature fluid bath when amount of liquid deficiency Non-Touching Type Liquid Level Switch can open fluid infusion pump liquid make-up in trend constant temperature fluid bath, therefore stopped that artificial fluid infusion may cause smolder, the accident such as to catch fire occurs, ensure that thermostat work safety and extend service life of equipment.
Automatic liquid supply constant temperature fluid bath structure of the present utility model is simple, be easy to realize and safeguard, reliability is high.
Automatic liquid supply constant temperature fluid bath of the present utility model, can promote the cooling control ability of standard constant temperature bath at double, greatly shorten cooling settling time, reach save time, energy-conservation, consumption reduction effect.
Wind cooling temperature reducing device of the present utility model, compared with the liquid cooling cooling-down device of compressor cooling type, has equipment needed thereby few, and reliability is high, operation maintenance is easy, the advantage of energy-conserving and environment-protective.
Accompanying drawing explanation
Fig. 1 is the structural representation of automatic liquid supply constant temperature fluid bath.
Detailed description of the invention
Below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is described.
As shown in Figure 1, automatic liquid supply constant temperature fluid bath comprises:
Liquid reserve tank 1; Fluid infusion pump 2; Level gauging cylinder 3; Communicating pipe 4; Metal ball float 5; Level sensing and controller 6, adopt Contactless liquid switch in present embodiment; Air inducing blower fan 7; Induced duct 8; Stirring motor 9; Agitator 10; Electric heater 11; Overflow pipe 12; Dividing plate 13; Muff 14; Constant temperature fluid bath 15.
Constant temperature fluid bath 15, for holding working media.Muff 14 is enclosed within outside constant temperature fluid bath 15, is incubated constant temperature fluid bath 15.
Liquid reserve tank 1, for storing working media to be supplemented;
Fluid infusion pump 2, is connected between liquid reserve tank 1 and constant temperature fluid bath 15, is pumped among constant temperature fluid bath 15 by working media by liquid reserve tank 1.
Level gauging cylinder 3 is connected to the upper end of constant temperature fluid bath 15 by communicating pipe 4, for measuring the liquid level in constant temperature fluid bath 15; Metal ball float 5 is arranged in level gauging cylinder 3; Level sensing and controller 6, be arranged on the top of level gauging cylinder 3, detects the liquid level in level gauging cylinder 3.
Agitator 10 is arranged in constant temperature fluid bath 15, stirs the working media in constant temperature fluid bath 15 under the drive of stirring motor 9.
Electric heater 11, uses when needing the temperature of the working media heightened in constant temperature fluid bath 15.
Overflow pipe 12 is arranged in constant temperature fluid bath 15, and upper end open is placed in constant temperature fluid bath 15 upper fluid level limit level, and lower ending opening is in described liquid reserve tank.When the liquid level in constant temperature fluid bath 15 is increased on overflow pipe 12 mouth of pipe, just there is liquid to be disposed to liquid reserve tank 1 from overflow pipe 12, thus control the highest liquid level in constant temperature fluid bath 15.
When the liquid level in constant temperature fluid bath 15 is reduced to below minimum permission level value, makes level sensing and controller 6 open fluid infusion pump 2 because the liquid level of level gauging cylinder and the liquid level of metal ball float 5 position and constant temperature fluid bath 15 keep relation of following up and carry out fluid infusion.Level sensing and controller 6 use non-contacting proximity switch in the present embodiment.When fluid infusion operation makes the liquid level of constant temperature fluid bath go back up to the above certain numerical value of minimum permission level value, when namely exceeding the upper shed of overflow pipe, level sensing and controller 6 disconnect, thus fluid infusion pump 2 is quit work.Minimum permission level value can be arranged according to different product demands in various embodiments, and in the present embodiment, minimum permission level value is set to the upper cover 1 ~ 2 centimetre of distance constant temperature fluid bath 15.
Wind cooling temperature reducing device, comprises forced air cooled tube 8 and air inducing blower fan 7.The inner space of constant temperature fluid bath 15 is divided into temperature adjustment district and calibrating district by dividing plate 13, is temperature adjustment district in FIG on the left of dividing plate 13, and right side is calibrating district.Forced air cooled tube 8 is arranged in thermostat temperature adjustment district, and its entrance leads to air, and its outlet is the entrance of air inducing blower fan 7.After air inducing blower fan 7 starts, ambient wind enters from forced air cooled tube 8 entrance, absorbs the heat that thermostat working medium transmits on the way, discharges eventually through air inducing blower fan bottom thermostat.Air inducing blower fan controls by thermostat temperature controller.When being generally the thermostatic control program proceeding to lower temperature calibrating point after the calibrating of higher temperature calibrating point terminates, start air-cooled quick temperature-reducing function.Start wind cooling temperature lowering function start air inducing blower fan exactly and monitor thermostat Temperature of Working.When warm groove Temperature of Working drops to set temperature calibrating point or be neighbouring, stop the work of air inducing blower fan.
The volume of liquid reserve tank 1 can be designed to 1/1 to eight/4th of working medium volume in constant temperature fluid bath 15.In order to reduce metal ball float 5 and the relative motion frictional resistance of level gauging cylinder 3, can level gauging cylinder 3 be designed to square.Level sensing and controller 6 can adopt contactless proximity switch, and be arranged on metal ball float 5 upper end, installation site is adjustable.Working media of the present utility model adopts oily working medium.Fluid infusion pump 2 should be selected resistant to elevated temperatures and be applicable to the liquor pump of oily working medium.
Constant temperature fluid bath Wind cooling temperature reducing device of the present utility model only just can realize with two kinds of parts.The metal pipe material that forced air cooled tube 8 design thermal conductivity is good, can arrange radiated rib, to help heat exchange on forced air cooled tube.Forced air cooled tube 8 is arranged in thermostat temperature adjustment district, is centered around the stirring flow region formed when agitator 10 stirs.Forced air cooled tube 8 is by stirring circle point trisection or quartering angle symmetrical layout.Dividing plate about 13 all has opening, and when paddle 10 works, working media flows out from lower ending opening, flows into, define the circulating path of about from upper end open.Therefore working media is while with paddle 10 transverse rotation, yet forms both longitudinal circulation up and down, makes the heat exchanger effectiveness between working media and forced air cooled tube higher.Air inducing blower fan will select resisting blower, low noise, Wind Volume.When starting air inducing blower fan, should ensure to close electric heater.
Claims (6)
1. an automatic liquid supply constant temperature fluid bath, is characterized in that, comprising:
Constant temperature fluid bath, splendid attire working media;
Liquid reserve tank, stores working media to be supplemented;
Fluid infusion pump, one end is communicated with described liquid reserve tank, and the other end is connected with described constant temperature fluid bath, is pumped into by the working media in described liquid reserve tank in described constant temperature fluid bath;
Level gauging cylinder, is connected with described constant temperature fluid bath, measures the liquid level in described constant temperature fluid bath;
Metal ball float, is arranged on the liquid level of described level gauging cylinder;
Non-Touching Type Liquid Level Switch, is arranged at the top of described level gauging cylinder, and when the liquid level in measuring cylinder is lower than predetermined value, Non-Touching Type Liquid Level Switch opens described fluid infusion pump, input service medium in described constant temperature fluid bath.
2. automatic liquid supply constant temperature fluid bath as claimed in claim 1, is characterized in that, also comprise:
Forced air cooled tube and air inducing blower fan, described forced air cooled tube is arranged in described constant temperature fluid bath, and an end entrance of described forced air cooled tube communicates with air, and the other end of described forced air cooled tube connects with air inducing blower fan.
3. automatic liquid supply constant temperature fluid bath as claimed in claim 2, is characterized in that:
Wherein, described constant temperature fluid bath inside has stirring flow region, and described forced air cooled tube is arranged in described stirring flow region, by stirring circle point trisection or quartering angle symmetrical layout.
4. automatic liquid supply constant temperature fluid bath as claimed in claim 1, is characterized in that:
Wherein, the volume of described liquid reserve tank is 1/1 to eight/4th of working medium volume in constant temperature fluid bath.
5. automatic liquid supply constant temperature fluid bath as claimed in claim 1, is characterized in that:
Wherein, described level gauging cylinder is square.
6. automatic liquid supply constant temperature fluid bath as claimed in claim 1, it is characterized in that also having: overflow pipe, upper end open upper end open in described constant temperature fluid bath is placed in described constant temperature fluid bath upper fluid level limit level, and lower ending opening is in described liquid reserve tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520647468.XU CN204841742U (en) | 2015-08-25 | 2015-08-25 | Automatic fluid infusion constant temperature cistern |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520647468.XU CN204841742U (en) | 2015-08-25 | 2015-08-25 | Automatic fluid infusion constant temperature cistern |
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| CN204841742U true CN204841742U (en) | 2015-12-09 |
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| CN201520647468.XU Active CN204841742U (en) | 2015-08-25 | 2015-08-25 | Automatic fluid infusion constant temperature cistern |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104998708A (en) * | 2015-08-25 | 2015-10-28 | 上海量值测控仪器科技有限公司 | Air-cooled automatic supplementing constant temperature liquid bath |
| CN110902006A (en) * | 2019-12-23 | 2020-03-24 | 芜湖西通三维技术有限公司 | Feeding pushing mechanism for ink box packaging machine |
-
2015
- 2015-08-25 CN CN201520647468.XU patent/CN204841742U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104998708A (en) * | 2015-08-25 | 2015-10-28 | 上海量值测控仪器科技有限公司 | Air-cooled automatic supplementing constant temperature liquid bath |
| CN110902006A (en) * | 2019-12-23 | 2020-03-24 | 芜湖西通三维技术有限公司 | Feeding pushing mechanism for ink box packaging machine |
| CN110902006B (en) * | 2019-12-23 | 2021-06-18 | 芜湖西通三维技术有限公司 | Feeding pushing mechanism for ink box packaging machine |
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