CN85202504U

CN85202504U - Gas temperature sense controll device

Info

Publication number: CN85202504U
Application number: CN 85202504
Authority: CN
Inventors: 周永亮
Original assignee: Individual
Current assignee: Individual
Priority date: 1985-05-18
Filing date: 1985-05-18
Publication date: 1986-05-14

Abstract

The utility model which discloses a constant temperature automatic controller adopts a closed metal box as a temperature measurer, the hot expanding cold shrinking characteristic of the gas in a box is utilized, and the soft and elastic membrane on a transmission box communicated with the box expands out and draws back. An operating lever which contacts and tightly abuts against the soft elastic membrane is directly propelled, in order to control the heat supply of the heat source, and the purpose of automatically controlling the temperature is realized. The heat production speed of the heat source, such as the electricity, the oil and the coal can be directly controlled, with the utility model, a low temperature modification incubator used for the bacteria culture, the seed germination, the poultry incubation and the biological culture can be manufactured, and a high temperature modification constant temperature cabinet made by a coal ball stove can be used to bake food and process the machinery; besides, the high temperature modification constant temperature cabinet can be used as a minitype baking box for industry. The utility model which can be used in a region with or without electricity supply has the advantages of simple structure, low cost and easy fabrication.

Description

Gas temperature sense controll device

The utility model belongs to self-control thermostatic machinery.

General constant temperature automatic controller is all made the thermometric sensing element with certain material, again through another mechanism transform, amplification, could control thermal source, thus complex structure not only, cost height, and do not have electricity and just can not use.

At above-mentioned defective, the utility model utilizes expanding with heat and contract with cold of closed gas itself, and sensing temperature changes, and directly controls operating rod.What of coal dust ball stove intake each operating rod can regulate respectively, and the size of kerosene lamp lamp flame, and the clutch of relay moving contact and static contact are to reach the purpose of self-control thermostatic.

Main points of the present utility model are: as Fig. 1,1. make gas thermometric box with the box that sheet metal is made, put hemispheric soft elastic film 3., the gear box of making at a cylindrical enclosure can end 2..Between gas thermometric box and gear box, 4. be communicated with a fine duct, on gear box, pick out a conduit more 5., as gas outlet.

Before using gas thermometric box is hung in the tested temperature field (as the constant temperature oven among Fig. 2), 7. the operating rod top sphere 6. that gear box is controlled with it respectively outside the venue contacts and pushes against.When thermal source during to the temperature field heat supply, when gases are heated, they expand in the thermometric box, outwards releases by gas outlet, when the temperature in the temperature field is raised to predetermined temperature, 8. clamps gas outlet with clip, so just can airtight gas outlet, and make whole gas sensing controller airtight.After this, temperature in the temperature field continues to raise, and the volumetric expansion of being heated of the gas in the gas thermometric box through conduit pressure boost in gear box, makes box end elastic film to outer lug, and promotes operating rod by elastic film and advance; The action of operating rod can make heat supply reduce, or stop heat supply.When the temperature in the temperature field was lower than working temperature, the gas volume in the gas thermometric box dwindled, and atmospheric pressure makes elastic membrane recessed, and operating rod is by its original suffered acting force, and (gravity or screen resilience) draws back.Its course of work is described below respectively:

(1) with " coal dust ball stove constant temperature automatically controlled door " on the operating rod interlock, as Fig. 3 first, 9. shell is an end and the external airtight square iron sheet tube to communicating in the stove of coal briquette fire door tight connecting among the figure, there is lever 10. in the tube, in its left end suspention " dodge gate " (11), the surface of contact of dodge gate and the shutter (12) at the bottom of tube all is the plane, dodge gate (11) can be closed shutter (12) when falling, as Fig. 3, near the left side of second lever rotation axis (13), 6. be connected with operating rod with hinge (14), its top be smooth sphere 7., 3. this sphere contacts with the elastic film that 2. rotation box is gone up and pushes against, the lever right-hand member is equipped with counterweight setting nut (15), regulate before the use, make the moment of right-hand member big slightly, dodge gate (11) is motionless by the back balance of being sling, the maximum coal fire of the intake of shutter this moment (12) can fully burn, when the temperature in the constant temperature oven is raised to predetermined temperature, 5. (referring to be lower than 1 ℃ to 2 ℃ of working temperature) 8. clamp gas outlet with clip, so just, can airtight gas outlet, make whole gas sensing controller airtight.After this temperature in the constant temperature oven is owing to the coal stove heat supply continues to raise, gas thermometric box is 1. interior, and when gases are heated, they expand, through conduit 4. to gear box 2. in pressure boost, make box end elastic film 3. to outer lug, and it is 6. 10. downward together with dodge gate (11) to depress lever 3. to promote operating rod by elastic film, and the intake of coal stove shutter (12) reduces, and the coal stove heat production reduces, heating load to constant temperature oven reduces, and the temperature in the constant temperature oven no longer rises after rising is arranged slightly.When otherwise 3. elastic film is lower than working temperature and caves inward owing to the temperature in the constant temperature oven, minimizing is to the thrust of operating rod, the right-hand member counterweight increases dodge gate (11), and intake increases, and the coal fire heat production speeds up, the constant temperature oven heat supply is increased, make constant temperature the temperature inside the box stop falling, and then go up near working temperature, regulate automatically so repeatedly, the temperature inside the box is always changed, to reach the purpose of constant temperature automatic control in very little scope.

(2) with " kerosene lamp lamp flame regulator " together with, as Fig. 4, wick among the figure (16) is through in the light-carrier canal (17), light-carrier canal has " transfer flame sleeve pipe " (18) outward, between it and light-carrier canal (17) suitable gap is arranged, for movingly.Transfer the upper end mid point of flame conduit (18) that two outwards stationary shaft (19) of expenditure are arranged, it is inserted in lever 10. in the hole, garden (20) of left end, for hinge connects, the rotation axis of lever (13) is far away from left end, nearer from right-hand member, the right-hand member of lever fixedly mounts a counterweight setting nut (15), vertically on the lever right-hand member, operating rod is installed 6. again in addition, 3. 7. the operating rod 6. smooth sphere on top contact and push against with the elastic film that 2. gear box is gone up, adjusting setting nut (15) before using makes accent flame sleeve pipe (18) be in extreme lower position, wick (16) is in the outside that the lamp flame is regulated sleeve pipe (18), sufficient combustion, many to the constant temperature oven heat supply, impel the temperature inside the box to raise, temperature in constant temperature oven is raised to predetermined temperature when (referring to be lower than slightly 0.5 ℃ to 1 ℃ of working temperature), 8. clamp gas outlet 5. with clip, make whole gas sensing controller airtight, when after this temperature in the constant temperature oven has rising more slightly, the airtight air expanded by heating that gas thermometric box is 1. interior, through conduit 4. to gear box 2. in pressure boost, make box end elastic film 3. to outer lug, promote operating rod to depress lever right-hand member 10., make lever 10. the accent flame sleeve pipe (18) of left end rise and entangle light-carrier canal (17) and wick (16) gradually, reduce contacting of wick (16) and surrounding air, the lamp flame diminishes, the heat supplied with in the constant temperature oven is reduced, no longer rise after making temperature in the constant temperature oven that rising be arranged slightly.Otherwise when elastic film caved in inwards because of the temperature in the constant temperature oven is lower than working temperature, it reduced thrust to operating rod, then the lever left end falls, transfer flame conduit (18) to descend, the increase that contacts of wick (16) and surrounding air, the increase of lamp flame, heat supply increases to constant temperature oven, make the temperature in the constant temperature oven stop to descend, go back up near the working temperature then till, regulate automatically so repeatedly, temp autocontrolled in the constant temperature oven changed, to reach the purpose of constant temperature automatic control in very little scope.

(3) be connected with the electric heater switch, as Fig. 5, electric heater among the figure (21) right-hand member connects the civil power zero line, left end connects static contact (22), and the left end of moving contact (23) is connected with the live wire of civil power, and moving contact (23) is normally closed with static contact (22), on near the shell fragment moving contact (23), fix an operating rod vertical 6. with it, its top be smooth sphere 7., 3. it contact with the elastic film that 2. gear box is gone up and push against.When energising heat supply temperature in the constant temperature oven reaches predetermined temperature when (referring to be lower than slightly 0.5 ℃ to 1 ℃ of working temperature), 8. clamp gas outlet with clip and 5. make it airtight, after this temperature in the constant temperature oven has rising slightly, 3. pressure boost of the elastic film 1. 4. 2. gear box gone up by conduit of thermometric box then, making its sphere protruding upward and by the operating rod top 7. head on moving contact (23) leaves static contact (22) and makes electric heater (21) outage, stop heat supply, constant temperature the temperature inside the box no longer rises after rising is arranged slightly.Otherwise when being lower than working temperature as the temperature in the constant temperature oven, 3. elastic film caves inward, 6. operating rod is reduced thrust, then moving contact (23) elastic force is on one's own account got back to original position downwards and is contacted with static contact (22) again, turning circuit, electric heater (21) heat production is to the constant temperature oven heat supply, and the temperature of constant temperature oven stops to descend, and then goes back up near the working temperature.Automatically controlled electric heater switch so repeatedly, automatic temperature-control is to reach the purpose of constant temperature automatic control.

The utility model compared with the prior art, its advantage be simple in structure, cost is low, produces easily, can replace electricity with coal and wet goods fuel, so that have electricity, areas without electricity to use.Temperature control precision can satisfy the general needs of producing, so can not only be used for the low form constant temperature oven, makes biological culture such as microbe growth, germination, poultry hatching.Can also make the high temperature modification constant temperature oven with coal dust ball stove, make food-baking processing equipment or industrial small size baking box.

The inventor once made an embodiment, and the coal dust ball stove, kerosene lamp, the heating wire that utilize the utility model and it to control are formed hatch machine, and (as Fig. 2) hatches ovum gallinaceum.1. the thermometric box of control coal dust ball stove is made volume is 1000 centimetres ³, it is 500 centimetres that the thermometric box (1 ') of control kerosene lamp is made volume ³, (it is 200 centimetres that 1 ") made volume to the thermometric box of control heating wire ³They are placed on place suitable in the hatch machine respectively, and the volume of gear box is 5 centimetres ³, the semisphere flexible film is to be 0.2 millimeter with thickness, the radius of a ball is that 8 millimeters soft rubber film is made.When using the utility model, when should the temperature in the temperature field not reaching working temperature as yet, 0.5 ℃ to 2 ℃ airtight gas outlet in advance also can be surveyed definitely before use, grasps flexibly.Temperature error in the experimental result, hatch machine＜± 0.3 ℃.Chickling-surviving rate is more than 85 percent.

Claims

1, a kind of gas temperature sensing controler is characterized in that it is a conduit [4], gas thermometric box [1], is connected with gear box [2], gas outlet [5] that an end is with soft elastic film [3] and makes.

2, according to claim 1, described gas thermometric box (1) is characterized in that it is the closed container made from sheet metal.

3, according to the described gear box of claim 1 (2), it is characterized in that it is a end at a cylindrical enclosure can, put that the soft elastic film of semisphere (3) makes.