CN206772455U - A kind of multipoint mode measures thermocouple - Google Patents
A kind of multipoint mode measures thermocouple Download PDFInfo
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- CN206772455U CN206772455U CN201720591798.0U CN201720591798U CN206772455U CN 206772455 U CN206772455 U CN 206772455U CN 201720591798 U CN201720591798 U CN 201720591798U CN 206772455 U CN206772455 U CN 206772455U
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- protective case
- thermocouple
- outside protective
- protective cover
- multipoint mode
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Abstract
The utility model discloses a kind of multipoint mode to measure thermocouple, including terminal box, outside protective case, multiple shielded thermocouple wires and fixed connection apparatus；The end of outside protective case is connected with terminal box; the terminals of multiple shielded thermocouple wires are packed in terminal box; and its thermometric end is placed on the different height in outside protective case; there are multiple internal protective cover pipes in outside protective case; multiple shielded thermocouple wires are respectively placed in internal protective cover pipe; its upper end is fixedly connected on outside protective case by installing plate, the liquid-tight envelope of cavity that outside protective case, internal protective cover pipe and installing plate are formed.After multipoint mode measurement thermocouple of the present utility model has outside protective case abrasion; reaction solution will not enter terminal box by outer jointing jacket tube chamber or be contacted with thermocouple wire; avoid the entirety of thermocouple or the damage of thermocouple wire; and multiple shielded thermocouple wires are replaceable; it can be individually replaced when shielded thermocouple wire therein damages, the work without influenceing other shielded thermocouple wires.
Description
Technical field
A kind of thermocouple is the utility model is related to, particularly relates to a kind of multipoint mode measurement thermocouple.
Background technology
Thermocouple is widely applied to various anti-in the industrial circles such as petrochemical industry as the most frequently used temperature sensor
Answer in the devices such as device, converter.It is placed in using two kinds of different alloy materials in same temperature will produce it is small positive and negative
Voltage and carry out thermometric.It is frequently necessary to measure the temperature of different liquid levels in same container in petrochemical industry to control
Various courses of reaction.Prior art has had multipoint mode measurement thermocouple, and it includes outside protective case, terminal box and is placed in
Multiple thermocouple wires in outside protective case, the thermometric end of multiple thermocouple wires are placed in different height position in outside protective case
Place, it is possible to achieve the measurement to different height in reactor to be measured.But the multipoint mode of prior art measurement thermocouple have with
Lower deficiency：1st, when the outside protective case of multipoint mode measurement thermocouple is damaged in reactor due to the effect of reaction solution, instead
Answer liquid to enter easily by the inner chamber of outside protective case along thermocouple in terminal box, cause the overall damage of multipoint mode measurement thermocouple
It is bad；Reaction solution is mostly flammable and explosive substance, and electricity is touched into terminal box, the danger for having blast.2nd, when multipoint mode measures thermoelectricity
During one or more of even thermocouple wire damage, then need all to take out multipoint mode measurement thermocouple to carry out thermocouple wire
Replacing or more renew multipoint mode measurement thermocouple.
The content of the invention
In view of defects in the prior art, the purpose of this utility model has been to provide for a kind of multipoint mode measurement thermoelectricity
Even, multipoint mode measurement thermocouple structure is simple, is easily changed the thermocouple wire of damage, and when outside protective case damages, instead
The reaction solution in device is answered not cause overall damage into terminal box.
To achieve these goals, the technical solution of the utility model：
A kind of multipoint mode measures thermocouple, including：Terminal box, outside protective case, multiple shielded thermocouple wires and it is placed in
Fixed connection apparatus on the outside protective case；The upper end of the outside protective case is connected with the terminal box, the multiple
The terminals of shielded thermocouple wire are packed in the terminal box, and the thermometric end of the multiple shielded thermocouple wire is placed in outside described
On different height in protection sleeve pipe, the fixed connection apparatus be used for by the multipoint mode measurement thermocouple be fixedly attached to by
On xylometer or cylinder body；Also have and the multiple internal protective covers of shielded thermocouple wire quantity identical in the outside protective case
Pipe, the multiple shielded thermocouple wire are respectively placed in the multiple internal protective cover pipe, and the internal protective cover pipe upper end passes through peace
Loading board is fixedly connected on outside protective case, and the installing plate causes by the outside protective case, internal protective cover pipe and installing plate
The liquid-tight envelope of cavity of formation；
Further, it is equipped between the outside protective case and the internal protective cover pipe along the outer jointing jacket tube axis direction
Spaced apart multiple dividing plates, the multiple internal protective cover pipe are fixedly connected through the dividing plate and with the dividing plate；
Further, positioned at armouring heat in the cavity formed between the outside protective case and the internal protective cover pipe
One end of the thermometric end of thermocouple wire is equipped with heat-conducting cream, and the lower end of the multiple internal protective cover pipe is placed in the heat-conducting cream, made
Obtaining the heat-conducting cream can uniformly be delivered to temperature the thermometric end of the multiple thermocouple wire；
Further, the upper end of the outside protective case is directly connected with the terminal box；
Further, the upper end of the outside protective case weaves flexible pipe by stainless steel and is connected with the terminal box；
Further, the fixed connection apparatus is the ring flange being fixed on the outside protective case；
Further, the fixed connection apparatus is the helicitic texture being fixed on the outside protective case.
By using above-mentioned technical proposal, multipoint mode provided by the utility model measures thermocouple, has below beneficial to effect
Fruit：1st, by being built-in with internal protective cover pipe in outside protective case, multiple shielded thermocouple wires are respectively placed in can in internal protective cover pipe
So that when outside protective case damages, internal protective cover pipe shields, prevent reaction solution from entering terminal box；2nd, due to armouring thermoelectricity
Thermo wires is placed in internal protective cover pipe, when one or more shielded thermocouple wires damage, it may not be necessary to which whole multipoint mode is surveyed
Calorimetric galvanic couple is changed or taken out and repaired, it is only necessary to is by the shielded thermocouple wire of damage is taken out into replacing at terminal box
Can, it is easy to repair and do not influence other shielded thermocouple wires that reacting liquid temperature is continued to measure；3rd, in outside protective case and
Multiple dividing plates are equipped between internal protective cover pipe, internal protective cover pipe is fixedly connected through dividing plate and with dividing plate so that each armouring thermoelectricity
Thermo wires is evenly arranged in outside protective case, improves the accuracy of measurement of multipoint mode measurement thermocouple；4th, in outside protective case
Heat-conducting cream is equipped between internal protective cover pipe, the thermometric end that temperature can uniformly be delivered to thermocouple wire by heat-conducting cream can enter one
Step improves measurement accuracy；5th, outside protective case uses is connected directly or by stainless steel braiding flexible pipe with terminal box, Ke Yifang
Just the thermocouple is placed in different spaces.
Brief description of the drawings
Fig. 1 is a kind of example structure figure of the utility model multipoint mode measurement thermocouple；
Fig. 2 is another example structure figure of the utility model multipoint mode measurement thermocouple；
Fig. 3 is part A structure partial enlarged diagram in Fig. 1；
Fig. 4 is part B structure partial enlarged diagram in Fig. 2；
Fig. 5 is mounting plates structure when the utility model multipoint mode measurement thermocouple has 5 internal protective cover pipes.
In figure：1st, terminal box, 2, outside protective case, 3, shielded thermocouple wire, 4, fixed connection apparatus, 5, internal protective cover
Pipe, 6, installing plate, 7, dividing plate, 8, heat-conducting cream, 9, the flexible pipe of stainless steel braiding, 10, cavity, 61, circular hole.
Embodiment
As shown in Figure 1, Figure 2, Figure 3 and Figure 4, multipoint mode measurement thermocouple of the present utility model includes terminal box 1, outer protection
(quantity that the quantity of shielded thermocouple wire 3 can measure reacting liquid temperature as needed is entered for sleeve pipe 2, multiple shielded thermocouple wires 3
Row is chosen) and the fixed connection apparatus 4 that is placed on outside protective case 2.Preferably, outside protective case 2 is that one end has opening
Tubular structure, the lower end of outside protective case 2 is hemispherical dome structure, and hemispherical dome structure seals the lower end of outside protective case 2, is prevented anti-
The reaction solution in device is answered to enter, it can also reduce the abrasion between the lower end of outside protective case 2 and reaction solution.Outside protective case 2
Upper end have external thread structure can be used for terminal box 1 or stainless steel braiding flexible pipe 9 on female thread structure be connected.Such as
Shown in Fig. 4, being built-in with multiple internal protective cover pipes 5 in outside protective case 2, (internal protective cover pipe is 3 in Fig. 2 and Fig. 4, Fig. 1 and Fig. 4
Middle internal protective cover pipe is 2), the structure of internal protective cover pipe 5 has the tubular structure of opening, the lower end liquid of internal protective cover pipe 5 for one end
Seal and the length of multiple internal protective cover pipes 5 is inconsistent so that the lower end of internal protective cover pipe 5 is placed in outside protective case 2 not
At height, the upper end of internal protective cover pipe 5 is fixedly attached on outside protective case 2 by an installing plate 6, as shown in figure 5, installation
Plate 6 is thin rounded flakes, and the multiple circular holes 61 consistent with the quantity of internal protective cover pipe 5 are machined with installing plate 6, and (Fig. 5 is with 5
The structure of installing plate during internal protective cover pipe), internal protective cover pipe 5 through the circular hole 61 on installing plate 6 and by welding or other
Mode is connected with installing plate 6 and liquid-tight envelope.As shown in figure 3, installing plate 6 is weldingly fixed on the upper end of outside protective case 2, and cause by
The 10 liquid-tight envelope of cavity that outside protective case 2, internal protective cover pipe 5 and installing plate 6 surround.It is equipped with respectively in multiple internal protective cover pipes 5
Shielded thermocouple wire 3, the thermometric end of shielded thermocouple wire 3 are placed in the cavity lower end of internal protective cover pipe 5 for measuring in reactor
The temperature of the reaction solution of different liquid levels, the terminals of shielded thermocouple wire 3 stretch out and are connected to from the upper end of internal protective cover pipe 5
In terminal box 1.Therefore during multipoint mode measurement thermocouple measurement, if outside protective case 2 has breakage, reaction solution enters outer
In the cavity 10 of protection sleeve pipe 2, due to the protective effect of internal protective cover pipe 5, reaction solution will not enter in internal protective cover pipe 5 with damage
Bad shielded thermocouple wire 3, while the 10 liquid-tight envelope of cavity formed between installing plate 6, internal protective cover pipe 5 and outside protective case 2, make
The reaction solution in outside protective case 2, which must be entered, will not overflow from the upper end of outside protective case 2 and enter in terminal box 1, avoid making
Integrally damaged into multipoint mode measurement thermocouple.
Further, multiple dividing plates 7 are equipped between outside protective case 2 and internal protective cover pipe 5, dividing plate 7 is circular piece
Shape structure, the external diameter of dividing plate 7 is identical with the internal diameter of outside protective case 2, is machined with dividing plate 7 consistent with the quantity of internal protective cover pipe 5
Circular hole, internal protective cover pipe 5 through dividing plate 7 and by weld etc. mode be fixedly connected with dividing plate 7, multiple dividing plates 7 are respectively along outer
The axis of protection sleeve pipe 2 is set at interval of certain distance so that internal protective cover pipe 5 is uniformly arranged in the inner chamber of outside protective case 2
And internal protective cover pipe 5 will not tilt in the inner chamber of outside protective case 2, ensure that be placed in internal protective cover pipe 5 armouring
Thermocouple wire 3 can accurately measure the temperature of different liquid levels in reactor.
Further, as depicted in figs. 1 and 2, surveyed between outside protective case 2 and internal protective cover pipe 5 positioned at thermocouple wire 3
Wen Duan one end is injected with heat-conducting cream 8, and the lower end of multiple internal protective cover pipes 5 is placed in heat-conducting cream 8 by the injecting height of heat-conducting cream 8
In so that the temperature on outside protective case 2 uniformly and quickly can be delivered on internal protective cover pipe 5 by heat-conducting cream 8, and by temperature
Degree is delivered to the thermometric end of the shielded thermocouple wire 3 in internal protective cover pipe 5 with to the progress temperature survey of the reaction solution of reactor.
As depicted in figs. 1 and 2, the upper end of outside protective case 2 has external thread structure, its can be used for in terminal box 1
Female thread structure is directly connected to, and the female thread structure that the end of flexible pipe 9 can also be woven with stainless steel is connected.It is as shown in figure 1, outer
Protection sleeve pipe 2 is directly connected to terminal box 1, shielded thermocouple wire 3 is connected with terminal box 1, and pass through the wiring in terminal box 1
The temperature of seat transmission measurement.As shown in Fig. 2 outside protective case 2 connects one end of the flexible pipe 9 of stainless steel braiding, stainless steel is compiled
The other end for the flexible pipe 9 knitted is connected with terminal box 1, and the installing space that thermocouple can be now measured according to multipoint mode is rational
The length of flexible pipe 9 of stainless steel braiding is chosen, and terminal box 1 is hung on suitable position, it is convenient that heat is measured to multipoint mode
Galvanic couple is arranged.
Fixed connection apparatus 4 is also equipped with outside protective case 2, fixed connection apparatus 4 is used to multipoint mode measuring thermoelectricity
Occasionally it is fixedly connected on the reactor for needing to carry out temperature survey.In fig. 1 and 2, fixed connection apparatus 4 is ring flange, method
Blue disk is welded on the outer wall of outside protective case 2, and ring flange is fixed on to the corresponding measurement position of reactor by screw or bolt
Put.Fixed connection apparatus 4 can also be the screwed sleeve pipe of external diameter (structure is well known to those skilled in the art), set
Pipe is inserted in and is welded on outside protective case, and the screw thread on sleeve outer can be connected with the female thread structure on reactor, from
And multipoint mode measurement thermocouple is connected on reactor, there is the sleeve pipe of helicitic texture as fixed connection apparatus using external diameter
4 can reduce the volume of multipoint mode measurement thermocouple, convenient installation.
It is described above, the only preferable embodiment of the utility model, but the scope of protection of the utility model is not
This is confined to, any one skilled in the art is in the technical scope that the utility model discloses, according to this practicality
New technical scheme and its inventive concept is subject to equivalent substitution or change, should all cover the scope of protection of the utility model it
It is interior.
Claims (7)
1. a kind of multipoint mode measures thermocouple, including：Terminal box (1), outside protective case (2), multiple shielded thermocouple wires (3) with
And the fixed connection apparatus (4) being placed on the outside protective case (2)；The upper end of the outside protective case (2) and the wiring
Box (1) is connected, and the terminals of the multiple shielded thermocouple wire (3) are packed in the terminal box (1), the multiple armouring heat
The thermometric end of thermocouple wire (3) is placed on the different height in the outside protective case (2), and the fixed connection apparatus (4) is used for
Multipoint mode measurement thermocouple is fixedly attached on tested container or cylinder body；It is characterized in that：The outside protective case (2)
Inside also have and the multiple internal protective cover pipes (5) of the shielded thermocouple wire (3) quantity identical, the multiple shielded thermocouple wire
(3) it is respectively placed in the multiple internal protective cover pipe (5), internal protective cover pipe (5) upper end is fixedly connected by installing plate (6)
On outside protective case (2), the installing plate (6) causes by the outside protective case (2), internal protective cover pipe (5) and installing plate
(6) cavity (10) liquid-tight envelope formed.
2. multipoint mode according to claim 1 measures thermocouple, it is characterised in that：The outside protective case (2) with it is described
It is equipped between internal protective cover pipe (5) along the spaced apart multiple dividing plates (7) of the outside protective case (2) axis direction, it is the multiple
Internal protective cover pipe (5) is fixedly connected through the dividing plate (7) and with the dividing plate (7).
3. multipoint mode according to claim 2 measures thermocouple, it is characterised in that：In the outside protective case (2) and institute
State to be equipped with positioned at one end of the thermometric end of the shielded thermocouple wire (3) in the cavity (10) formed between internal protective cover pipe (5) and lead
Hot cream (8), the lower end of the multiple internal protective cover pipe (5) are placed in the heat-conducting cream (8) so that the heat-conducting cream (8) can
So that temperature to be uniformly delivered to the thermometric end of the multiple shielded thermocouple wire (3).
4. multipoint mode according to claim 3 measures thermocouple, it is characterised in that：The upper end of the outside protective case (2)
Directly it is connected with the terminal box (1).
5. multipoint mode according to claim 3 measures thermocouple, it is characterised in that：The upper end of the outside protective case (2)
Flexible pipe (9) is woven by stainless steel to be connected with the terminal box (1).
6. the multipoint mode measurement thermocouple according to claim 4 or 5, it is characterised in that：The fixed connection apparatus (4) is
The ring flange being fixed on the outside protective case (2).
7. the multipoint mode measurement thermocouple according to claim 4 or 5, it is characterised in that：The fixed connection apparatus (4) is
The helicitic texture being fixed on the outside protective case (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720591798.0U CN206772455U (en) | 2017-05-24 | 2017-05-24 | A kind of multipoint mode measures thermocouple |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720591798.0U CN206772455U (en) | 2017-05-24 | 2017-05-24 | A kind of multipoint mode measures thermocouple |
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| Publication Number | Publication Date |
|---|---|
| CN206772455U true CN206772455U (en) | 2017-12-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720591798.0U Active CN206772455U (en) | 2017-05-24 | 2017-05-24 | A kind of multipoint mode measures thermocouple |
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| CN (1) | CN206772455U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110095198A (en) * | 2019-05-20 | 2019-08-06 | 安徽徽宁电器仪表集团有限公司 | A kind of explosion-proof teletransmission Multi-point detection thermocouple |
| CN113432736A (en) * | 2021-06-22 | 2021-09-24 | 西安热工研究院有限公司 | Casing pipe capable of replacing temperature measuring points of penultimate and last-stage blades on line |
-
2017
- 2017-05-24 CN CN201720591798.0U patent/CN206772455U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110095198A (en) * | 2019-05-20 | 2019-08-06 | 安徽徽宁电器仪表集团有限公司 | A kind of explosion-proof teletransmission Multi-point detection thermocouple |
| CN113432736A (en) * | 2021-06-22 | 2021-09-24 | 西安热工研究院有限公司 | Casing pipe capable of replacing temperature measuring points of penultimate and last-stage blades on line |
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