CN102175342A - Temperature sensing device with liquid level sensing function - Google Patents

Temperature sensing device with liquid level sensing function Download PDF

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Publication number
CN102175342A
CN102175342A CN 201010600757 CN201010600757A CN102175342A CN 102175342 A CN102175342 A CN 102175342A CN 201010600757 CN201010600757 CN 201010600757 CN 201010600757 A CN201010600757 A CN 201010600757A CN 102175342 A CN102175342 A CN 102175342A
Authority
CN
China
Prior art keywords
protecting pipe
temperature
temperature sensing
float
magnet ring
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN 201010600757
Other languages
Chinese (zh)
Inventor
贾艳东
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tianjin Huamai Gas Equipment Co Ltd
Tianjin Huamai Gas Technology Development Co Ltd
Original Assignee
Tianjin Huamai Gas Technology Development Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tianjin Huamai Gas Technology Development Co Ltd filed Critical Tianjin Huamai Gas Technology Development Co Ltd
Priority to CN 201010600757 priority Critical patent/CN102175342A/en
Publication of CN102175342A publication Critical patent/CN102175342A/en
Pending legal-status Critical Current

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Abstract

The invention discloses a temperature sensing device with a liquid level sensing function. The temperature sensing device comprises a hermetic shell, a temperature sensing part and a liquid level sensing part, wherein the hermetic shell consists of a junction box and a protecting pipe; the protecting pipe is fixedly and hermetically connected with the junction box; a wiring terminal and a wire outlet are arranged in the junction box; the temperature sensing part is a temperature detecting thermal resistance element which is fixed at the inner bottom of the protecting pipe and is connected with the wiring terminal through a lead; the liquid level sensing part comprises a reed pipe, a floater, a magnet ring and a limiter; the reed pipe is arranged on the inner middle part of the protecting pipe; the floater, the magnet ring and the limiter are positioned outside the protecting pipe; and the floater is sleeved on the protecting pipe and can move freely upwards and downwards. The temperature sensing device has the advantages that: a temperature detecting sensor and a liquid level detecting sensor are arranged in one protecting pipe, and only a terminal of the junction box is connected with a controller through a lead during wiring, so that the installation space is saved, and convenience is brought to equipment manufacturing and practical operation. The temperature sensing device is suitable for controlling the temperatures and liquid levels of hot water containers adopting various electrical heating ways.

Description

A kind of temperature sensing device with the level sensing function
(1) technical field
The present invention relates to the hot water tank temperature and the liquid level control technology of Electric heating, particularly a kind of temperature sensing device with the level sensing function.
(2) background technology
In the hot water control container of Electric heating, well heater will be placed on the bottom of container, and the water surface will be higher than well heater, otherwise well heater can be burnt out under the state of lack of water, and entire equipment is damaged.So in control, the temperature transmitter of measuring temperature will be arranged, the water level switch of measuring water level also will be arranged.That is to say that in the control of the water heater of this electrical heating type when water level reaches more than the level switch, electric heater begins heating, measures temperature by temperature transmitter, will stop the temperature heating when temperature reaches the temperature of setting.In equipment in the past, two transmitters, a water level transmitter, a temperature transmitter must be installed.Not only increase the position of opening of making, also increased workman's work, all brought a lot of troubles for maintenance to equipment.
(3) summary of the invention
The objective of the invention is at above-mentioned existing problems, the temperature sensing device of a kind of simple in structure, safe and reliable, convenient maintenance, band level sensing function that applicability is strong is provided.
Technical scheme of the present invention:
A kind of temperature sensing device with the level sensing function, comprise seal casinghousing, temperature sensing part and level sensing part, seal casinghousing is made of terminal box and protecting pipe, the protecting pipe lower end closed, the protecting pipe upper end open is also fixed with terminal box and is tightly connected, the terminal box internal fixation has connection terminal, and terminal box is provided with line outlet; Temperature sensing is partly surveyed resistance thermometer clement for temperature, and temperature detection resistance thermometer clement is fixed in the protecting pipe inner bottom part and is connected with connection terminal by lead; Level sensing partly comprises tongue tube, float, magnet ring and stop, tongue tube is arranged at middle part in the protecting pipe, be provided with the magnetic switch contact in the tongue tube and be connected with connection terminal by lead, float, magnet ring and stop all are positioned at the protecting pipe outside, stop is circular orifice and fixes with protecting pipe, and stop and tongue tube are in same horizontal position, float is the right cylinder that is provided with center pit, magnet ring is fixed in the center pit of float, the float that is fixed with magnet ring is enclosed within on the protecting pipe and but easy on and off moves, and the external diameter of stop is greater than the diameter of float center pit.
Working mechanism of the present invention: stop is fixed on the protecting pipe outside according to the liquid level needs, and float just can fluctuate on protecting pipe.Float just is parked in spacing place when lack of water, when promptly having the float arrival tongue tube position of magnet, and output lack of water signal, tongue tube is in the effect lower contact closure in magnetic field, when float left this position come-up, opened the contact of tongue tube, thereby realize the detection to liquid level.The detection of temperature surveys resistance thermometer clement by temperature and circuit is realized.From connection terminal lead is got final product by the pulpit that line outlet is drawn out to outside the container during use, but will guarantee the sealing of line outlet and the heat-resisting and insulation of lead.
Advantage of the present invention: temperature detection sensing and level detection sensing are placed in the protecting pipe, traditional temperature sensor and liquid level sensor are effectively combined, when wiring, only the terminal of terminal box need be linked to each other with lead with controller and get final product, saved installing space, make things convenient for equipment making and practical operation, be applicable to the temperature and the liquid level control of the hot water tank of various Electric heating.
(4) description of drawings
Accompanying drawing is this apparatus structure synoptic diagram.
Among the figure: 1. terminal box 2. protecting pipes 3. connection terminals 4. line outlets
5. temperature is surveyed resistance thermometer clement 6. leads 7. tongue tubes 8. floats
9. magnet ring 10. stops 11. leads
(5) embodiment
Embodiment:
A kind of temperature sensing device with the level sensing function, comprise seal casinghousing, temperature sensing part and level sensing part, seal casinghousing is made of terminal box 1 and protecting pipe 2, protecting pipe 2 lower end closed, protecting pipe 2 upper end open are also fixing and be tightly connected with terminal box 1, terminal box 1 internal fixation has connection terminal 3, and terminal box 1 is provided with line outlet 4; Temperature sensing is partly surveyed resistance thermometer clement 5 for temperature, and temperature detection resistance thermometer clement 5 is fixed in protecting pipe 2 inner bottom parts and is connected with connection terminal 3 by lead 6; Level sensing partly comprises tongue tube 7, float 8, magnet ring 9 and stop 10, tongue tube 7 is arranged at middle part in the protecting pipe 2, be provided with the magnetic switch contact in the tongue tube 7 and pass through lead 11 and be connected with connection terminal 3, float 8, magnet ring 9 and stop 10 all are positioned at protecting pipe 2 outsides, stop 10 is a circular orifice and fixing with protecting pipe 2, and stop 10 is in same horizontal position with tongue tube 7, float 8 is for being provided with the right cylinder of center pit, magnet ring 9 is fixed in the center pit of float 8, the float 8 that is fixed with magnet ring 9 is enclosed within on the protecting pipe 2 and but easy on and off moves, and the external diameter of stop 10 is greater than the diameter of float 8 center pits.
Among this embodiment, terminal box adopts the aluminium preparation, and protecting pipe is a stainless-steel tube, and it is that Tianjin three-star instrument Watch Factory produces, model is PT100 that temperature is surveyed resistance thermometer clement, and tongue tube is that Tianjin three-star instrument Watch Factory produces, model is YE-20, and lead all adopts insulated conductor.

Claims (1)

1. temperature sensing device with the level sensing function, it is characterized in that: comprise seal casinghousing, temperature sensing part and level sensing part, seal casinghousing is made of terminal box and protecting pipe, the protecting pipe lower end closed, the protecting pipe upper end open is also fixed with terminal box and is tightly connected, the terminal box internal fixation has connection terminal, and terminal box is provided with line outlet; Temperature sensing is partly surveyed resistance thermometer clement for temperature, and temperature detection resistance thermometer clement is fixed in the protecting pipe inner bottom part and is connected with connection terminal by lead; Level sensing partly comprises tongue tube, float, magnet ring and stop, tongue tube is arranged at middle part in the protecting pipe, be provided with the magnetic switch contact in the tongue tube and be connected with connection terminal by lead, float, magnet ring and stop all are positioned at the protecting pipe outside, stop is circular orifice and fixes with protecting pipe, and stop and tongue tube are in same horizontal position, float is the right cylinder that is provided with center pit, magnet ring is fixed in the center pit of float, the float that is fixed with magnet ring is enclosed within on the protecting pipe and but easy on and off moves, and the external diameter of stop is greater than the diameter of float center pit.
CN 201010600757 2010-12-22 2010-12-22 Temperature sensing device with liquid level sensing function Pending CN102175342A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201010600757 CN102175342A (en) 2010-12-22 2010-12-22 Temperature sensing device with liquid level sensing function

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201010600757 CN102175342A (en) 2010-12-22 2010-12-22 Temperature sensing device with liquid level sensing function

Publications (1)

Publication Number Publication Date
CN102175342A true CN102175342A (en) 2011-09-07

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201010600757 Pending CN102175342A (en) 2010-12-22 2010-12-22 Temperature sensing device with liquid level sensing function

Country Status (1)

Country Link
CN (1) CN102175342A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102661772A (en) * 2012-05-15 2012-09-12 成都中核鑫星应用技术研究所 Integrated electric contact liquid level and liquid temperature measurement sensor
CN102901544A (en) * 2012-10-19 2013-01-30 上海凡宜科技电子有限公司 Material position and temperature sensor
CN103115657A (en) * 2013-02-22 2013-05-22 南京讯联液压件有限公司 Mining explosion-proof level display control sensor
CN103674187A (en) * 2013-12-10 2014-03-26 中国船舶重工集团公司第七0九研究所 Novel lead-acid battery temperature liquid level sensor

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5534237U (en) * 1978-08-25 1980-03-05
US5050430A (en) * 1990-06-19 1991-09-24 Magnetek Controls Magnetostrictive linear position detector with temperature sensors
CN2540623Y (en) * 2002-05-10 2003-03-19 陈晓曾 Probe of electronic water gage
CN201917412U (en) * 2010-12-22 2011-08-03 天津市华迈燃气技术发展有限公司 Temperature sensing device with function of liquid level sensing

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5534237U (en) * 1978-08-25 1980-03-05
US5050430A (en) * 1990-06-19 1991-09-24 Magnetek Controls Magnetostrictive linear position detector with temperature sensors
CN2540623Y (en) * 2002-05-10 2003-03-19 陈晓曾 Probe of electronic water gage
CN201917412U (en) * 2010-12-22 2011-08-03 天津市华迈燃气技术发展有限公司 Temperature sensing device with function of liquid level sensing

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
《仪表技术与传感器》 19921231 王学良 等 高稳定性的UQD-91C型浮球液位变送器 第26页 1 , *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102661772A (en) * 2012-05-15 2012-09-12 成都中核鑫星应用技术研究所 Integrated electric contact liquid level and liquid temperature measurement sensor
CN102901544A (en) * 2012-10-19 2013-01-30 上海凡宜科技电子有限公司 Material position and temperature sensor
CN102901544B (en) * 2012-10-19 2015-01-21 上海凡宜科技电子有限公司 Material position and temperature sensor
CN103115657A (en) * 2013-02-22 2013-05-22 南京讯联液压件有限公司 Mining explosion-proof level display control sensor
CN103674187A (en) * 2013-12-10 2014-03-26 中国船舶重工集团公司第七0九研究所 Novel lead-acid battery temperature liquid level sensor
CN103674187B (en) * 2013-12-10 2017-01-11 中国船舶重工集团公司第七0九研究所 Novel lead-acid battery temperature liquid level sensor

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Application publication date: 20110907