CN208642707U - A kind of test tube heating device - Google Patents
A kind of test tube heating device Download PDFInfo
- Publication number
- CN208642707U CN208642707U CN201821074408.3U CN201821074408U CN208642707U CN 208642707 U CN208642707 U CN 208642707U CN 201821074408 U CN201821074408 U CN 201821074408U CN 208642707 U CN208642707 U CN 208642707U
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- China
- Prior art keywords
- heater box
- test tube
- hole
- wall
- sliding
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- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Abstract
This programme discloses a kind of test tube heating device in experimental provision field, including heater box, is provided, in sequence from bottom to top, with heat-conducting plate, Electric radiant Heating Film and setter plate in heater box, sets and be evenly equipped with placement hole on plate；Heat-conducting plate is equipped with through-hole, is equipped with breather cheek valve in through-hole；Closed cavity is equipped in the one side wall of heater box, the inner wall of heater box is equipped with venthole, and venthole is located at the lower section of heat-conducting plate；The inner wall of heater box is equipped with cricoid limiting slot, and the inner wall of heater box is equipped with sliding slot, and sliding slot is located at the two sides of venthole, and two sliding slots are connected to the limiting slot ipsilateral with it；The shading cloth of rectangle is equipped between two sliding slots；It is equipped with sliding block on four angles of shading cloth, two sliding blocks are slidably connected in two sliding slots；It is connected to inside the one end of two sliding slots far from cavity and heater box；The wall body of heater box is equipped with the connecting hole being connected to its inside, and connecting hole is between limiting slot and setter plate.Device in this programme can effectively keep the relative constant of test tube temperature.
Description
Technical field
The utility model belongs to experimental provision field, in particular to a kind of test tube heating device.
Background technique
Test tube is the common instrument of chemical laboratory, serves as the reaction vessel of a small amount of reagent, is made in room temperature or heating
With.Test tube, in order to reach anticipation reaction effect, needs for reactant to be pre-added to examination in carrying out chemical experiment use process
In pipe and it is heated.Test tube is mainly first fixed on rack for test tube by the heating method of test tube at present, then passes through wine again
Smart lamp heats test tube, and since test tube bottom is heated more, the reactant of test tube bottom first gets to required temperature, while by
It is lower in test tube itself heat conduction efficiency, along with the heat of bottom is easy to around test tube be diffused outward, into one
Step reduces the efficiency that heat conducts upwards.In addition, carrying out may be large batch of due to experiment, and needed after test tube heating
Invisible spectro reactant is allowed to maintain a relatively constant temperature in range in a long time；It is single using alcolhol burner heating at present
The mode of a or several test tubes is difficult to meet in the heating quantity of the test tube of one side；On the other hand, test tube is directly exposed to sky
In gas, the passage of heat is larger, needs always to heat test tube with alcolhol burner, and alcolhol burner heats easily for a long time
Cause temperature of charge excessively high, while causing the waste of the energy.
Utility model content
The utility model is intended to provide a kind of test tube heating device, is carried out with solving the prior art using alcolhol burner to test tube
Heating causes interior temperature of charge in test tube heating negligible amounts and test tube to be difficult to keep relative constant problem.
One of this programme test tube heating device, the heater box including cuboid open at one end, heater box are interior under
It is successively arranged heat-conducting plate, Electric radiant Heating Film and setter plate on and, sets the placement hole being evenly equipped on plate for holding test tubes；The heat-conducting plate
It is equipped with through-hole, is equipped with breather cheek valve in through-hole；Closed cavity is equipped in the one side wall of heater box, on the inner wall of heater box
Equipped with the venthole for being connected to the cavity, venthole is located at the lower section of heat-conducting plate；The inner wall of the heater box be equipped with it is cyclic annular and
The limiting slot being connected to the cavity, is equipped with sliding slot on the inner wall of the heater box opposite sides, two sliding slots be located at it is described go out
The two sides of stomata, two sliding slots are connected to the limiting slot ipsilateral with it；The shading cloth of rectangle is equipped between two sliding slots, it is described to block
The thickness of cloth is equal to the height of limiting slot；It is equipped with sliding block on four angles of shading cloth, two adjacent sliders are located at described in two
In sliding slot, the remaining two sliding block positions are in the cavity；Inside two sliding slots one end and heater box far from the cavity
Connection；The wall body of heater box is equipped with the connecting hole being connected to its inside, and connecting hole is between the limiting slot and setter plate.
The working principle of this programme and its utility model has the advantages that in use, be in vitro put into reactant, then test tube is placed on
In placement hole, disposably a large amount of test tubes can be heated.Electric radiant Heating Film is that a kind of can generate heat after energization translucent polyester is thin
Film, by conductive special ink, metal current-carrying item is processed, hot pressing is made between insulation polyester film；It powers to Electric radiant Heating Film,
It generates heat and heats to test tube；During heating, as the temperature rises, the air heats below heat-conducting plate are swollen
Swollen, air pressure rises, and due to the setting of breather cheek valve on heat-conducting plate, the gas below heat-conducting plate can only flow to empty through venthole
Chamber, then flow to sliding slot through cavity, since limiting slot is blocked cloth sealing, sliding slot is sealed by sliding block, gas can only push sliding block to
Side far from cavity is mobile；When sliding block is by after the sliding slot that is connected to inside heater box, shading cloth is by the opening of heater box
Closing；After shading cloth closing heating box opening, the closed air circulation path of heater box Inner Constitution；On the one hand it may advantageously facilitate
Heat exchange between a test tube, keeps internal temperature to be in relative constant temperature；So that heater box is isolated with outside air,
It avoids test tube in the prior art to be directly exposed to air, the problem that heat losses cause greatly temperature change big.
Meanwhile the subsequent hot gas to come from cavity flows to setter plate, and then heats to test tube.In test tube heating process
In, due to the barrier effect of heater box, meanwhile, it is balanced when Electric radiant Heating Film is to the heating of test tube, due to the reactant of test tube interior
Temperature rising needs to consume more heat transfer, and the temperature of air rising heat consumption is lower, and due to pressure difference, hot gas is high from air pressure
The place place diffusion low to air pressure；Therefore, the hot gas around test tube can be gathered to test tube, then be risen from bottom to top, keep away
The case where having exempted from hot gas in the prior art excessive from the surrounding of test tube loss generation, so that the heating effect of test tube is more preferable.?
In heating process, thermometer can be put by connecting hole, detect heater box internal temperature；And then the temperature of test tube is carried out
Real-time monitoring.Meanwhile hot gas is also avoided that the situation that pressure is excessive in heater box occurs from connecting hole outflow.It not detected
When, seal connecting hole.
Further, heat pipe is equipped in the placement hole.By the setting of heat pipe, when in use, test tube is placed on heat pipe
It is interior, since heat pipe has good heat transfer effect, can be conducive to carry out more rapidly and test tube with the conduction of accelerated heat
The heating of weighing apparatus.
Further, the top of the heater box is equipped with threaded hole, and threaded hole internal screw thread is connected with threaded rod, and threaded rod is located at
The opposite side of the cavity, threaded rod are located at the surface of sliding slot.It, can be with when sliding block is after sliding slot by the way that threaded rod is arranged
Sliding block is fixed by threaded rod, when avoiding reducing because heating the temperature inside the box, shading cloth rollback causes shading cloth right
Heating box opening is closed.
Further, the temperature detector for detecting test tube temperature in heater box is additionally provided on the outer wall of the heater box.
By the setting of temperature detector, the temperature of test tube can be monitored at any time, be more advantageous to and maintain the opposite of test tube temperature
It is constant.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of test tube heating device of the utility model；
Fig. 2 is the top view of Fig. 1；
Fig. 3 is the top view of guard mechanism in Fig. 1.
Specific embodiment
Below by the further details of explanation of specific embodiment:
Appended drawing reference in Figure of description includes: heater box 1, threaded rod 2, sliding block 3, shading cloth 4, heat pipe 5, setter plate
6, Electric radiant Heating Film 7, heat-conducting plate 8, sliding slot 9, cavity 10, breather cheek valve 11, venthole 12.
Embodiment is basic as shown in attached drawing 1~3: a kind of test tube heating device, including guard mechanism and square open at one end
The heater box 1 of body is provided, in sequence from bottom to top, with heat-conducting plate 8, Electric radiant Heating Film 7 and setter plate 6 in heater box 1, sets and be evenly equipped on plate
Placement hole is equipped with the heat pipe 5 for holding test tubes in placement hole；Heat-conducting plate 8 is equipped with through-hole, is equipped with one-way air inlet in through-hole
Valve 11；Closed cavity 10 is equipped in the one side wall of heater box 1, the inner wall of heater box 1 is equipped with the venthole of connection cavity 10
12, venthole 12 is located at the lower section of heat-conducting plate 8；The inner wall of heater box 1 is equipped with limiting slot that is cyclic annular and being connected to cavity 10, adds
Sliding slot 9 is equipped on the inner wall of 1 opposite sides of hot tank, two sliding slots 9 are located at the two sides of venthole 12, and the connection of two sliding slots 9 is same with it
The limiting slot of side；Guard mechanism include the rectangle being equipped between two sliding slots 9 shading cloth 4 (thickness of shading cloth 4 be equal to limiting slot
Height) and shading cloth 4 the sliding block 3 that is equipped with of four angles, two adjacent sliders 3 are located in two sliding slots 9, and residue two is sliding
Block 3 is located in cavity 10；It is connected to inside the one end of two sliding slots 9 far from cavity 10 and heater box 1；The top of heater box 1 is equipped with spiral shell
Pit, threaded hole internal screw thread are connected with threaded rod 2, and threaded rod 2 is located at the opposite side of cavity 10, and threaded rod 2 is being located at sliding slot 9 just
Top；The wall body of heater box 1 is equipped with the connecting hole being connected to its inside, and connecting hole is between limiting slot and setter plate 6；Add
The temperature detector for detecting test tube temperature in heater box 1 is additionally provided on the outer wall of hot tank 1.
Above-described is only the embodiments of the present invention, and the common sense such as well known specific structure and characteristic are herein in scheme
It does not describe excessively.It should be pointed out that for those skilled in the art, in the premise for not departing from the utility model structure
Under, several modifications and improvements can also be made, these also should be considered as the protection scope of the utility model, these all will not influence
The effect and patent practicability that the utility model is implemented.This application claims protection scope should be with the content of its claim
Subject to, the records such as specific embodiment in specification can be used for explaining the content of claim.
Claims (4)
1. a kind of test tube heating device, it is characterised in that: the heater box including cuboid open at one end, in heater box from lower and
On be successively arranged heat-conducting plate, Electric radiant Heating Film and setter plate, set the placement hole being evenly equipped on plate for holding test tubes；On the heat-conducting plate
Equipped with through-hole, breather cheek valve is equipped in through-hole；It is equipped with closed cavity in the one side wall of heater box, is set on the inner wall of heater box
There is the venthole for being connected to the cavity, venthole is located at the lower section of heat-conducting plate；The inner wall of the heater box be equipped with it is cyclic annular and with
The limiting slot of cavity connection is equipped with sliding slot on the inner wall of the heater box opposite sides, and two sliding slots are located at the outlet
The two sides in hole, two sliding slots are connected to the limiting slot ipsilateral with it；The shading cloth of rectangle, the shading cloth are equipped between two sliding slots
Thickness be equal to limiting slot height；Sliding block is equipped on four angles of shading cloth, two adjacent sliders are located at two cunnings
In slot, the remaining two sliding block positions are in the cavity；Two sliding slots connect inside one end and heater box far from the cavity
It is logical；The wall body of heater box is equipped with the connecting hole being connected to its inside, and connecting hole is between the limiting slot and setter plate.
2. test tube heating device according to claim 1, it is characterised in that: be equipped with heat pipe in the placement hole.
3. test tube heating device according to claim 1 or 2, it is characterised in that: the top of the heater box is equipped with screw thread
Hole, threaded hole internal screw thread are connected with threaded rod, and threaded rod is located at the opposite side of the cavity, threaded rod be located at sliding slot just on
Side.
4. test tube heating device according to claim 3, it is characterised in that: be additionally provided with and be used on the outer wall of the heater box
Detect the temperature detector of test tube temperature in heater box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821074408.3U CN208642707U (en) | 2018-07-06 | 2018-07-06 | A kind of test tube heating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821074408.3U CN208642707U (en) | 2018-07-06 | 2018-07-06 | A kind of test tube heating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208642707U true CN208642707U (en) | 2019-03-26 |
Family
ID=65783867
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821074408.3U Expired - Fee Related CN208642707U (en) | 2018-07-06 | 2018-07-06 | A kind of test tube heating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208642707U (en) |
-
2018
- 2018-07-06 CN CN201821074408.3U patent/CN208642707U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190326 Termination date: 20210706 |