CN209197553U - A kind of heating device of automatic constant current constant temperature - Google Patents
A kind of heating device of automatic constant current constant temperature Download PDFInfo
- Publication number
- CN209197553U CN209197553U CN201822024534.4U CN201822024534U CN209197553U CN 209197553 U CN209197553 U CN 209197553U CN 201822024534 U CN201822024534 U CN 201822024534U CN 209197553 U CN209197553 U CN 209197553U
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- Prior art keywords
- heat exchanger
- temperature
- pipe
- transmitter
- valve
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Abstract
The utility model provides a kind of heating device of automatic constant current constant temperature, including cold burden tank, variable frequency pump and heat exchanger, cold burden tank is connected to the input terminal of variable frequency pump, cold end mouth and two hot ends mouthful there are two being set on heat exchanger, heat exchanger cold end lower part is connected to by first pipe with frequency conversion pump output terminal, flow transmitter and the first valve are provided in first pipe, heat exchanger hot end top is communicated with the defeated pipe of steam, steam control valve door is provided on steam pipeline, pressure transmitter and the second valve, heat exchanger cold end top is communicated with second pipe, temperature transmitter and third valve are installed on second pipe, temperature transmitter and pressure transmitter, steam control valve door forms temperature automatic adjustment system；The utility model can be such that the setting value of temperature automatic adjustment system is accordingly changed by cooperating with each other between temperature transmitter, pressure transmitter and steam automatic regulating valve, so that the temperature after keeping raw material to heat is stable, lag is small.
Description
Technical field
The utility model relates to a kind of heating of liquid material technical field of heating more particularly to automatic constant current constant temperature dresses
It sets.
Background technique
Existing liquid material heating device is steam automatic regulating valve to be installed on steam pipeline, with the temperature after heating
Value adjusts the aperture of steam automatic regulating valve, since detection temperature has 2~3 seconds lag, along with detecting that temperature value changes
After change, the aperture of steam automatic regulating valve starts to change, and then steam flow and then changes, and heating object is just caused after exchanging heat
The temperature value of material changes, when cold burden slot temperature of charge increases or reduces, will necessarily cause to be heated temperature of charge increase or
It reduces, so that the lag of this regulative mode is big, fluctuation is big, stability is poor, while entire shaping modes are complex, therefore this
Utility model proposes a kind of heating device of automatic constant current constant temperature to solve problems of the prior art.
Utility model content
In view of the above-mentioned problems, temperature pick-up can be passed through the utility model proposes a kind of heating device of automatic constant current constant temperature
Cooperating with each other to make the setting value of temperature automatic adjustment system carry out phase between device, pressure transmitter and steam automatic regulating valve
It should change, so that the temperature after keeping raw material to heat is stable, lag is small.
In order to solve the problem above-mentioned, the utility model proposes a kind of heating devices of automatic constant current constant temperature, including cold burden
Tank, variable frequency pump and heat exchanger, the cold burden tank are connected to the input terminal of variable frequency pump, set on the heat exchanger there are two cold end mouth and
Two hot ends mouthful, heat exchanger cold end lower part are connected to frequency conversion pump output terminal by first pipe, are set in the first pipe
It is equipped with flow transmitter and the first valve, the flow transmitter and variable frequency pump are electrically connected, and heat exchanger hot end top connects
It is connected with steam pipeline, steam control valve door, pressure transmitter and the second valve, the steaming are provided on the steam pipeline
Steam control valve door and pressure transmitter are electrically connected, and heat exchanger cold end top is communicated with second pipe, and on second pipe
Temperature transmitter and third valve be installed, the temperature transmitter and pressure transmitter are electrically connected, and temperature transmitter with
Pressure transmitter, steam control valve door form temperature automatic adjustment system.
Further improvement lies in that: first pipe is arranged on one end of the variable frequency pump in first valve, described
Flow transmitter is arranged on the one end of first pipe far from the variable frequency pump.
Further improvement lies in that: the hot end lower part of the heat exchanger is connected to condensate pipe, and is set on the condensate pipe
It is equipped with the 4th valve.
Further improvement lies in that: the heat exchanger is plate heat exchanger, spray-type heat exchanger, any in shell-and-tube heat exchanger
It is a kind of.
The utility model has the following beneficial effects: the utility model is automatic by temperature transmitter, pressure transmitter and steam
Regulating valve constitutes temperature automatic adjustment system, and the temperature and steam pressure of entire temperature automatic adjustment system have a setting
Value, when cold burden slot temperature of charge increases or reduces, the actual value and setting value that material will necessarily be caused to be heated are inconsistent,
By cooperating with each other between temperature transmitter, pressure transmitter and steam automatic regulating valve the temperature can be made to adjust automatically in this way
The setting value of section system is accordingly changed, so that the temperature after keeping raw material to heat is stable, lag is small.
Detailed description of the invention
Fig. 1 is the utility model structure diagram.
Wherein: 1- cold burden tank, 2- variable frequency pump, 3- heat exchanger, 4- first pipe, 5- flow transmitter, the first valve of 6-, 7-
Steam pipeline, 8- steam control valve door, 9- pressure transmitter, the second valve of 10-, 11- second pipe, 12- temperature pick-up
Device, 13- third valve, 14- condensate pipe, the 4th valve of 15-.
Specific embodiment
In order to deepen the understanding to the utility model, the utility model is further described below in conjunction with embodiment,
The present embodiment is only used for explaining the utility model, does not constitute the restriction to scope of protection of the utility model.
According to Fig. 1, the present embodiment proposes a kind of heating device of automatic constant current constant temperature, including cold burden tank 1, frequency conversion
Pump 2 and heat exchanger 3, the cold burden tank 1 be connected to the input terminal of variable frequency pump 2, set on the heat exchanger 3 there are two cold end mouth and two
A hot end mouthful, the 3 cold end lower part of heat exchanger is connected to by first pipe 4 with 2 output end of variable frequency pump, in the first pipe 4
It is provided with flow transmitter 5 and the first valve 6, the flow transmitter 5 and variable frequency pump 2 are electrically connected, 3 heat of heat exchanger
End top is communicated with steam pipeline 7, and steam control valve door 8, pressure transmitter 9 and the are provided on the steam pipeline 7
Two valves 10, the steam control valve door 8 are electrically connected with pressure transmitter 9, and the 3 cold end top of heat exchanger is communicated with second
Pipeline 11, and temperature transmitter 12 and third valve 13 are installed on second pipe 11, the temperature transmitter 12 becomes with pressure
Device 9 is sent to be electrically connected, and temperature transmitter 12 and pressure transmitter 9, steam control valve door 8 form temperature automatic adjustment system,
First pipe 4 is arranged on one end of the variable frequency pump 2 in first valve 6, and the flow transmitter 5 setting is the
On the one end of one pipeline 4 far from the variable frequency pump 2, the hot end lower part of the heat exchanger 3 is connected to condensate pipe 14, and described cold
The 4th valve 15 is provided on condensate pipe 14, the heat exchanger 3 is plate heat exchanger.
It is counterflow heat exchange in plate heat exchanger, that is, is heated material bottom in and top out, steam upper entering and lower leaving is defeated with variable frequency pump 2
The material of cold burden slot is sent, flow transmitter 5 is housed in the first pipe 4 of variable frequency pump 2, for detecting the mass flow of conveying, is become
When the frequency of frequency pump is 30Hz, material flow 10.0m3/h。
The flow automatic regulating system that flow transmitter 5 and variable frequency pump 2 form, when automatic control, flow value is set as
10.0m3/ h, flow automatic regulating system adjust the frequency values of variable frequency pump 2 i.e. according to setting value compared with actual value, thus
Control flow.
Material in cold burden slot 1 is 20 DEG C, needs to be heated to 65 DEG C, for subsequent handling, material flow 10.0m3/h。
When automatic control, the pressure set points of temperature automatic adjustment system are 0.45MPa, and temperature transmitter 9 is practical at this time
It is worth consistent with design value；When temperature of charge is raised and lowered in cold burden slot 1, will necessarily cause to be heated temperature of charge increase or
It reduces, deviates from 65 DEG C, become A, difference A-65, K are pressure coefficient, and at this moment the pressure set points of temperature automatic adjustment system are just
It can become 0.45-K (A-65), in this way, the variation of the difference with temperature is steamed to change pressure set points by increasing or reducing
Vapour conveys degree, so that the temperature for being heated material be made to return to 65 DEG C.
The detection and processing of signal, steam automatic regulating valve aperture change, the frequency shift of variable frequency pump, patrolled with programming
Controller PLC or Distributed Control System DCS is collected to be automatically processed and controlled.
The basic principles and main features and advantage of the utility model have been shown and described above.The technical staff of the industry
It should be appreciated that the present utility model is not limited to the above embodiments, the above embodiments and description only describe this
The principle of utility model, on the premise of not departing from the spirit and scope of the utility model, the utility model also has various change
And improvement, these various changes and improvements fall within the scope of the claimed invention.The utility model requires protection scope
It is defined by the appending claims and its equivalent thereof.
Claims (4)
1. a kind of heating device of automatic constant current constant temperature, it is characterised in that: including cold burden tank (1), variable frequency pump (2) and heat exchanger
(3), the cold burden tank (1) is connected to the input terminal of variable frequency pump (2), is set on the heat exchanger (3) there are two cold end mouth and two
Hot end mouthful, heat exchanger (3) the cold end lower part are connected to by first pipe (4) with variable frequency pump (2) output end, the first pipe
(4) flow transmitter (5) and the first valve (6) are provided on, the flow transmitter (5) and variable frequency pump (2) are electrically connected, institute
It states heat exchanger (3) hot end top to be communicated with steam pipeline (7), is provided with steam control valve door on the steam pipeline (7)
(8), pressure transmitter (9) and the second valve (10), the steam control valve door (8) and pressure transmitter (9) are electrically connected, institute
Heat exchanger (3) cold end top is stated to be communicated with second pipe (11), and be equipped on second pipe (11) temperature transmitter (12) and
Third valve (13), the temperature transmitter (12) and pressure transmitter (9) are electrically connected, and temperature transmitter (12) and pressure
Transmitter (9), steam control valve door (8) form temperature automatic adjustment system.
2. a kind of heating device of automatic constant current constant temperature according to claim 1, it is characterised in that: first valve
(6) it is arranged on one end in first pipe (4) close to the variable frequency pump (2), flow transmitter (5) setting is in the first pipe
Road (4) is far from the one end of the variable frequency pump (2).
3. a kind of heating device of automatic constant current constant temperature according to claim 1, it is characterised in that: the heat exchanger (3)
Hot end lower part be connected to condensate pipe (14), and the 4th valve (15) is provided on the condensate pipe (14).
4. a kind of heating device of automatic constant current constant temperature according to claim 1, it is characterised in that: the heat exchanger (3)
For any one in plate heat exchanger, spray-type heat exchanger, shell-and-tube heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822024534.4U CN209197553U (en) | 2018-12-04 | 2018-12-04 | A kind of heating device of automatic constant current constant temperature |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822024534.4U CN209197553U (en) | 2018-12-04 | 2018-12-04 | A kind of heating device of automatic constant current constant temperature |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209197553U true CN209197553U (en) | 2019-08-02 |
Family
ID=67427558
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822024534.4U Expired - Fee Related CN209197553U (en) | 2018-12-04 | 2018-12-04 | A kind of heating device of automatic constant current constant temperature |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209197553U (en) |
-
2018
- 2018-12-04 CN CN201822024534.4U patent/CN209197553U/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: 20190802 Termination date: 20201204 |