CN205760511U - Vacuum cooling driers heating system - Google Patents
Vacuum cooling driers heating system Download PDFInfo
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- CN205760511U CN205760511U CN201620554820.XU CN201620554820U CN205760511U CN 205760511 U CN205760511 U CN 205760511U CN 201620554820 U CN201620554820 U CN 201620554820U CN 205760511 U CN205760511 U CN 205760511U
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- pipeline
- heating
- heat exchanger
- exchanger tube
- connects
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 67
- 238000001816 cooling Methods 0.000 title claims abstract description 39
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances data:image/svg+xml;base64,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 data:image/svg+xml;base64,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 O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 35
- 239000000498 cooling water Substances 0.000 claims abstract description 20
- 238000007906 compression Methods 0.000 claims description 4
- 238000007599 discharging Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 13
- 239000000463 material Substances 0.000 abstract description 11
- 238000000034 method Methods 0.000 abstract description 3
- 239000002994 raw material Substances 0.000 description 3
- 239000008400 supply water Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000003020 moisturizing Effects 0.000 description 1
- 238000007634 remodeling Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000001256 steam distillation Methods 0.000 description 1
Abstract
The utility model discloses a kind of vacuum cooling driers heating system, it is intended to heater plate process temperature is controlled not accurate by the heating system solving vacuum freeze drier, affects the deficiency of material effect.This utility model includes heating tank, expansion drum, cooling tank, three-way control valve, hot water circulating pump, add heat pipe, hot heat exchanger tube it is provided with in heating tank, cold heat exchanger tube it is provided with in cooling tank, add heat pipe outlet and cold heat exchanger tube inlet communication, the outlet of cold heat exchanger tube and hot heat exchanger tube inlet communication, between heat exchanger tube outlet and expansion drum, pipeline connects, heating tank upper end connects steam generator by pipeline, heating tank lower end connects drain pipe, cooling tank lower end connects cooling water inlet pipe, cooling tank upper end connects cooling water outlet tube, steam control valve is installed on the pipeline between steam generator and heating tank, two imports of three-way control valve are connected on the pipeline on the pipeline between hot heat exchanger tube and expansion drum and between hot heat exchanger tube and cold heat exchanger tube by pipeline respectively.
Description
Technical field
This utility model relates to a kind of vacuum freeze drier, more specifically, it relates to a kind of vacuum cooling driers heating
System.
Background technology
Vacuum freeze drier includes dryness storehouse, the raw material transport that quick freezing repository pre-freeze is good is relayed in dryness storehouse, in vacuum
Under state, the solid ice within raw material, without the conversion of liquid, is directly sublimed into steam.Heating plate is installed in dryness storehouse, adds
Hot plate by radiation by the way of to frozen state under raw material provide heat, accelerate steam distillation process.The heat of heating plate
From heating system, heating plate is transmitted heat by delivery to heating plate by heating system, at various different working conditions
Under be different to the temperature of heating plate, it is therefore desirable to the temperature of heating plate is adjusted, wants meeting different operating modes
Ask.But the heating system temperature of the most a lot of vacuum freeze driers controls not accurate, affects the effect of material.
Utility model content
This utility model overcomes the heating system of vacuum freeze drier and controls the most smart to heater plate process temperature
Standard, affects the deficiency of the effect of material, it is provided that a kind of vacuum cooling driers heating system, its heating-up temperature to heating plate
Control precisely, it is ensured that the effect of material.
In order to solve above-mentioned technical problem, this utility model by the following technical solutions: a kind of vacuum cooling driers heating system
System, including heating tank, expansion drum, cooling tank, three-way control valve, hot water circulating pump, adds heat pipe in being arranged on dryness storehouse,
It is provided with hot heat exchanger tube in heating tank, in cooling tank, is provided with cold heat exchanger tube, add pipeline between heat pipe outlet and cold heat exchanger tube import and connect
Connecing, between the outlet of cold heat exchanger tube and hot heat exchanger tube import, pipeline connects, and between heat exchanger tube outlet and expansion drum, pipeline connects, heating
Tank upper end connects steam generator by pipeline, and heating tank lower end connects drain pipe, and cooling tank lower end connects cooling water inlet pipe, cold
But tank upper end connects cooling water outlet tube, and the pipeline between steam generator and heating tank is installed steam control valve, and threeway regulates
Two imports of valve are connected on the pipeline between hot heat exchanger tube and expansion drum by pipeline and hot heat exchanger tube and cold heat exchange respectively
On pipeline between pipe, the three-way control valve port of export connects hot water circulating pump, and hot water circulating pump is connected by pipeline and adds heat pipe
Import；With adding, inflow temperature detector is installed on the pipeline that heat pipe import is connected, pacifies on the pipeline that heat pipe outlet is connected with adding
Equipped with leaving water temperature detector.
During heating system work, hot water circuit pump startup, drive recirculated water to circulate delivery heat transfer in pipeline.Steam generation
Device carries high-temperature steam in heating tank, heats the water in hot heat exchanger tube；Cooling water flows into cooling from cooling water inlet pipe
Water in cold heat exchanger tube is cooled down by tank.Expansion drum ensures the water supply water temperature of hot water supply system, compensates the heat in pipeline
Loss.The water temperature value detected according to inflow temperature detector regulates steam control valve, three-way control valve.When the temperature detected
During temperature value needed for degree, increase the aperture of steam control valve, improve the heat transfer effect of hot heat exchanger tube, adjust three-way control valve two
The aperture of individual import, makes the import aperture of the three-way control valve being connected with the outlet of hot heat exchanger tube be connected more than with the outlet of cold heat exchanger tube
The import aperture of three-way control valve.In like manner, when the temperature detected is higher than required temperature value, steam control valve is reduced
Aperture, reduces the heat transfer effect of hot heat exchanger tube, adjusts the aperture of two imports of three-way control valve, makes to be connected with the outlet of hot heat exchanger tube
The import aperture of three-way control valve less than the import aperture of three-way control valve being connected with the outlet of cold heat exchanger tube.By adjusting school
Just make the inflow temperature adding heat pipe reach the temperature value of needs, make to add heat pipe accurate to the heating and temperature control of heating plate.Pass through
The temperature approach that inflow temperature detector and leaving water temperature detector detect can understand heating plate easily to be needed to carry to material
The caloric value of confession, it is simple to the vacuum preferably controlling material is cold dry.Hot water within adding heat pipe, heating plate is carried out heat exchange after from adding
Heat pipe outlet output, and be pipelined in cold heat exchanger tube, recycle.This vacuum cooling driers heating system is to heating
The heating and temperature control of plate is accurate, it is ensured that the effect of material.
As preferably, expansion drum upper end connects air compression system by pipeline.Expansion drum upper end is provided with relief valve.Swollen
Swell upper end connects filling pipe, and filling pipe is provided with stop valve.Expansion drum lower end connects discharging valve.Air compression system is protected
Having demonstrate,proved the pressure in expansion drum, relief valve serves overvoltage protection effect to expansion drum, prevents pipeline from bursting leakage.Filling pipe is just
Moisturizing is carried out in expansion drum.
As preferably, cooling water inlet pipe is provided with flooding angle seat valve, the cooling water between flooding angle seat valve and cooling tank
Connect on inlet pipe and have branch drain, branch drain is provided with draining angle pedestal valve.The setting of branch drain is dirty in being easy to cooling tube
The discharge of water.
As preferably, and add heat pipe import, be respectively connected with corrugated tube on pipeline that outlet is connected.Corrugated tube can elongate contracting
Short, it is simple to the layout of pipeline is installed.
Compared with prior art, the beneficial effects of the utility model are: heating plate is added by vacuum cooling driers heating system
Hot temperature controls precisely, it is ensured that the effect of material.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of the present utility model；
In figure: 1, heating tank, 2, expansion drum, 3, cooling tank, 4, three-way control valve, 5, hot water circulating pump, 6, add heat pipe, 7,
Hot heat exchanger tube, 8, cold heat exchanger tube, 9, steam generator, 10, drain pipe, 11, cooling water inlet pipe, 12, cooling water outlet tube, 13, steam
Steam control valve, 14, inflow temperature detector, 15, leaving water temperature detector, 16, air compression system, 17, relief valve, 18, mend
Water pipe, 19, stop valve, 20, discharging valve, 21, flooding angle seat valve, 22, branch drain, 23, draining angle pedestal valve, 24, corrugated tube,
25, dryness storehouse, 26, heating plate.
Detailed description of the invention
Below by specific embodiment, and combine accompanying drawing, make further specifically to retouch to the technical solution of the utility model
State:
Embodiment: a kind of vacuum cooling driers heating system (seeing accompanying drawing 1), including heating tank 1, expansion drum 2, cooling tank 3,
Three-way control valve 4, hot water circulating pump 5, for be arranged in dryness storehouse 25 add heat pipe 6, heating plate 26 is connected to adding heat pipe
It is easy to heat exchange together.It is provided with hot heat exchanger tube 7 in heating tank, in cooling tank, is provided with cold heat exchanger tube 8, add heat pipe outlet and cold heat exchange
Between pipe import, pipeline connects, and between the outlet of cold heat exchanger tube and hot heat exchanger tube import, pipeline connects, heat exchanger tube outlet and expansion drum
Between pipeline connect, heating tank upper end by pipeline connect steam generator 9, heating tank lower end connect drain pipe 10, cooling tank
Lower end connects cooling water inlet pipe 11, and cooling tank upper end connects cooling water outlet tube 12, the pipeline between steam generator and heating tank
Upper installation steam control valve 13, two imports of three-way control valve are connected between hot heat exchanger tube and expansion drum by pipeline respectively
Pipeline on and hot heat exchanger tube and cold heat exchanger tube between pipeline on, the three-way control valve port of export connect hot water circulating pump, hot water
Circulating pump connects the import adding heat pipe by pipeline；With adding, inflow temperature detector is installed on the pipeline that heat pipe import is connected
14, on the pipeline that heat pipe outlet is connected, leaving water temperature detector 15 is installed with adding.Expansion drum upper end connects air by pipeline
Compressibility 16.Expansion drum upper end is provided with relief valve 17.Expansion drum upper end connects filling pipe 18, filling pipe is provided with and cuts
Only valve 19.Expansion drum lower end connects discharging valve 20.On cooling water inlet pipe, flooding angle seat valve 21, flooding angle seat valve and cooling are installed
Connect on cooling water inlet pipe between tank and have branch drain 22, branch drain is provided with draining angle pedestal valve 23.Enter with adding heat pipe
It is respectively connected with corrugated tube 24 on the pipeline that mouth, outlet connect.
During heating system work, hot water circuit pump startup, drive recirculated water to circulate delivery heat transfer in pipeline.Steam generation
Device carries high-temperature steam in heating tank, heats the water in hot heat exchanger tube；Cooling water flows into cooling from cooling water inlet pipe
Water in cold heat exchanger tube is cooled down by tank.Expansion drum ensures the water supply water temperature of hot water supply system, compensates the heat in pipeline
Loss.The water temperature value detected according to inflow temperature detector regulates steam control valve, three-way control valve.When the temperature detected
During temperature value needed for degree, increase the aperture of steam control valve, improve the heat transfer effect of hot heat exchanger tube, adjust three-way control valve two
The aperture of individual import, makes the import aperture of the three-way control valve being connected with the outlet of hot heat exchanger tube be connected more than with the outlet of cold heat exchanger tube
The import aperture of three-way control valve.In like manner, when the temperature detected is higher than required temperature value, steam control valve is reduced
Aperture, reduces the heat transfer effect of hot heat exchanger tube, adjusts the aperture of two imports of three-way control valve, makes to be connected with the outlet of hot heat exchanger tube
The import aperture of three-way control valve less than the import aperture of three-way control valve being connected with the outlet of cold heat exchanger tube.By adjusting school
Just make the inflow temperature adding heat pipe reach the temperature value of needs, make the heating-up temperature adding heat pipe to the heating plate 26 in dryness storehouse 25
Control precisely.The temperature approach detected by inflow temperature detector and leaving water temperature detector can understand heating plate easily
Need the caloric value provided to material, it is simple to the vacuum preferably controlling material is cold dry.Heating plate is entered within adding heat pipe by hot water
From adding heat pipe outlet output after row heat exchange, and it is pipelined in cold heat exchanger tube, recycles.This vacuum cooling driers adds
Hot systems is accurate to the heating and temperature control of heating plate, it is ensured that the effect of material.
Embodiment described above is one of the present utility model preferably scheme, not makees this utility model any
Pro forma restriction, also has other variant and remodeling on the premise of without departing from the technical scheme described in claim.
Claims (7)
1. a vacuum cooling driers heating system, is characterized in that, including heating tank, expansion drum, cooling tank, three-way control valve, heat
Water-circulating pump, for be arranged in dryness storehouse add heat pipe, be provided with hot heat exchanger tube in heating tank, in cooling tank, be provided with cold heat exchange
Pipe, adds pipeline between heat pipe outlet and cold heat exchanger tube import and connects, and between the outlet of cold heat exchanger tube and hot heat exchanger tube import, pipeline is even
Connecing, between heat exchanger tube outlet and expansion drum, pipeline connects, and heating tank upper end connects steam generator, heating tank lower end by pipeline
Connecting drain pipe, cooling tank lower end connects cooling water inlet pipe, and cooling tank upper end connects cooling water outlet tube, steam generator and heating
On pipeline between tank install steam control valve, two imports of three-way control valve respectively by pipeline be connected to hot heat exchanger tube and
On pipeline on pipeline between expansion drum and between hot heat exchanger tube and cold heat exchanger tube, the three-way control valve port of export connects hot water and follows
Ring pump, hot water circulating pump connects the import adding heat pipe by pipeline；It is provided with into water temperature on the pipeline that heat pipe import is connected with adding
Degree detector, is provided with leaving water temperature detector with adding on the pipeline that heat pipe outlet is connected.
Vacuum cooling driers heating system the most according to claim 1, is characterized in that, expansion drum upper end connects sky by pipeline
Air pressure compression system.
Vacuum cooling driers heating system the most according to claim 1, is characterized in that, expansion drum upper end is provided with relief valve.
Vacuum cooling driers heating system the most according to claim 1, is characterized in that, expansion drum upper end connects filling pipe,
Stop valve is installed on filling pipe.
Vacuum cooling driers heating system the most according to claim 1, is characterized in that, expansion drum lower end connects discharging valve.
6. according to the vacuum cooling driers heating system described in claim 1 to 5 any one, it is characterized in that, on cooling water inlet pipe
Being provided with flooding angle seat valve, the cooling water inlet pipe between flooding angle seat valve and cooling tank connects branch drain, branch drain
On draining angle pedestal valve is installed.
7., according to the vacuum cooling driers heating system described in claim 1 to 5 any one, it is characterized in that, with add heat pipe import,
It is respectively connected with corrugated tube on the pipeline that outlet connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620554820.XU CN205760511U (en) | 2016-06-07 | 2016-06-07 | Vacuum cooling driers heating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620554820.XU CN205760511U (en) | 2016-06-07 | 2016-06-07 | Vacuum cooling driers heating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205760511U true CN205760511U (en) | 2016-12-07 |
Family
ID=58133817
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620554820.XU Active CN205760511U (en) | 2016-06-07 | 2016-06-07 | Vacuum cooling driers heating system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205760511U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108050769A (en) * | 2017-11-24 | 2018-05-18 | 淮北智淮科技有限公司 | It is a kind of using water as the freeze-drier heating system of thermal medium |
-
2016
- 2016-06-07 CN CN201620554820.XU patent/CN205760511U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108050769A (en) * | 2017-11-24 | 2018-05-18 | 淮北智淮科技有限公司 | It is a kind of using water as the freeze-drier heating system of thermal medium |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: Shangyu City, Zhejiang province Baiguan street new road 312300 Shaoxing City No. 317 Patentee after: Shaoxing Shangyu Food Machinery Co., Ltd. Guanfeng Address before: 312352, Chengnan Industrial Zone, Dongguan Street, Shangyu District, Zhejiang, Shaoxing Patentee before: SHANGYU GUANFENG FOOD MACHINERY CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: Shangyu City, Zhejiang province Baiguan street new road 312300 Shaoxing City No. 317 Patentee after: Zhejiang Feng Feng Food Machinery Co., Ltd. Address before: Shangyu City, Zhejiang province Baiguan street new road 312300 Shaoxing City No. 317 Patentee before: Shaoxing Shangyu Food Machinery Co., Ltd. Guanfeng |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: Zhejiang province Shaoxing city Shangyu District Dongguan Street South Industrial Park Patentee after: Zhejiang Feng Feng Food Machinery Co., Ltd. Address before: Shangyu City, Zhejiang province Baiguan street new road 312300 Shaoxing City No. 317 Patentee before: Zhejiang Feng Feng Food Machinery Co., Ltd. |