CN203824181U - Intelligent anti-icing water chilling unit - Google Patents
Intelligent anti-icing water chilling unit Download PDFInfo
- Publication number
- CN203824181U CN203824181U CN201320800507.6U CN201320800507U CN203824181U CN 203824181 U CN203824181 U CN 203824181U CN 201320800507 U CN201320800507 U CN 201320800507U CN 203824181 U CN203824181 U CN 203824181U
- Authority
- CN
- China
- Prior art keywords
- water chilling
- valve
- evaporimeter
- chilling unit
- intelligent anti
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 44
- 238000005057 refrigeration Methods 0.000 claims abstract description 13
- 239000007788 liquid Substances 0.000 claims description 9
- 238000007710 freezing Methods 0.000 abstract description 4
- 230000008014 freezing Effects 0.000 abstract description 4
- 239000003507 refrigerant Substances 0.000 abstract description 3
- 238000012544 monitoring process Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 4
- 208000033999 Device damage Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000009172 bursting Effects 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
Landscapes
- Air Conditioning Control Device (AREA)
Abstract
The utility model discloses an intelligent anti-icing water chilling unit. The intelligent anti-icing water chilling unit comprises a refrigeration compressor, a condenser, a throttle valve and an evaporator; the refrigeration compressor, the condenser, the throttle valve and the evaporator are orderly connected to form a refrigerant loop; the intelligent anti-icing water chilling unit is characterized in that a hydraulic-circuit electromagnetic valve is further arranged between the throttle valve and the evaporator; an electromagnetic drain valve is arranged on the evaporator; the hydraulic-circuit electromagnetic valve and the electromagnetic drain valve both are connected to a PLC (Programmable Logic Controller) and thus are automatically controlled by the PLC. The intelligent anti-icing water chilling unit has the advantages that the PLC of the unit is used for monitoring the operating safety of the unit, once the hidden danger of freezing occurs, decision is made immediately and implemented so that the fault response period is greatly shortened, and meanwhile, the influence of uncertain factors caused by human reasons on safe use of the water chilling unit can be avoided.
Description
Technical field
The utility model relates to a kind of intelligent anti-icing type handpiece Water Chilling Units, belongs to field of mechanical technique.
Background technology
The operation principle of existing handpiece Water Chilling Units is as follows, the refrigerant gas of the HTHP that compressor is discharged enters condenser by pipeline, by condensation of refrigerant being become to liquid with cooling water heat exchange, flowing to choke valve by pipeline again carries out entering evaporimeter after step-down cooling throttling, in evaporimeter, carry out heat exchange with the chilled water that enters evaporimeter, after the cold-producing medium draw heat evaporation of low temperature, get back to compressor by pipeline again, complete a kind of refrigeration cycle, and the water that enters evaporimeter siphons away because of cooled dose of heat, temperature is reduced to user's serviceability temperature, supply with user by delivery port again.
The shortcoming of this conventional refrigeration modes is: the first feelings; in use procedure; chilled water often can be benefited from the factor impact and cause chilled water not flow such as cut off the water supply suddenly in using at the scene, continual cold-producing medium still can continue in evaporimeter and chilled water heat exchange, causes water temperature to continue to reduce.As everyone knows, water can freeze in lower than 0 degree Celsius, water is icing meeting bursting by freezing heat exchange pipe of evaporator in evaporimeter, now need the draining valve of manually opened base of evaporator, the water that remains in evaporimeter is discharged, in the situation that great majority are cut off the water supply suddenly, scene all nobody is on duty, and while often finding, fault has occurred, loss has caused; The second situation, when handpiece Water Chilling Units is during for a long time in holding state, can be subject to the impact of environment temperature, when in the winter of northern area standby, the water temperature in evaporimeter is equal to environment temperature, once environment temperature is at 0 degree Celsius or following, water in evaporimeter can freeze, freezing evaporimeter, and if now because human factor is not opened draining valve, fault must occur, and causes handpiece Water Chilling Units to be damaged.
Mill run run into cut off the water supply, used time not for a long time, all need manual type to carry out draining, and think that the uncertain factor of operation is too many, may there is forgetting draining, or draining problem not in time, there is once mistake and all may cause whole device damage even to be scrapped, therefore cost is too large.
Utility model content
Utility model object: the purpose of this utility model is in order to solve above the deficiencies in the prior art, provides a kind of intelligent anti-icing type handpiece Water Chilling Units.
Technical scheme: the anti-icing type handpiece Water Chilling Units of intelligence described in the utility model, its objective is such realization, a kind of intelligent anti-icing type handpiece Water Chilling Units, comprise refrigeration compressor, condenser, choke valve, evaporimeter, described refrigeration compressor, condenser, choke valve, evaporimeter connect to form the loop of cold-producing medium successively, between described choke valve and evaporimeter, be also provided with liquid way solenoid valve, described evaporimeter is provided with electromagnetism draining valve, and described liquid way solenoid valve is all connected PLC controller with electromagnetism draining valve and automatically controls.
The water outlet of described refrigeration compressor and evaporimeter is equipped with flow sensor, and described flow sensor is all connected with PLC controller.
Described PLC controller is also provided with environment temperature sensor.
Operation principle:
In the time there is the first situation, the built-in sub-acquisition module of PLC controller gathers flow information by the water flow sensor being placed on chilled water outlet conduit, internal arithmetic through PLC controller is analyzed and judges whether handpiece Water Chilling Units should occur that flow reduces or cuts off the water supply completely, occur that above-mentioned any situation provides solution after the computing of PLC controller intelligence, again by built-in sub-output module output signal, be transmitted to electromagnetism automatic drain valve, it is opened, chilled water is discharged, be transmitted to liquid way solenoid valve simultaneously, it is closed, and then thoroughly protect the safety of handpiece Water Chilling Units.
In the time there is the second situation, the built-in sub-acquisition module of PLC controller can gather current information by the current sensor being placed on compressor, gather extraneous ambient temperature information by environment temperature sensor again, process PLC controller internal arithmetic also judges whether compressor does not open (time is set 2-5 hour) for a long time, whether environment temperature is lower than 0 degree Celsius, as decision condition all meets the demands, immediately by built-in sub-output module output signal, be transmitted to electromagnetism automatic drain valve, it is opened, chilled water is discharged, be transmitted to liquid way solenoid valve simultaneously, it is closed, the safety of protection handpiece Water Chilling Units.
Beneficial effect: the anti-icing type handpiece Water Chilling Units of intelligence described in the utility model, monitor the security of operation of unit by the Intelligent PLC Controller of unit self, once there is freezing hidden danger, make a determination at once and implement and process, greatly shorten the fault reaction cycle, can avoid again the impact on handpiece Water Chilling Units safe handling of uncertain factor that artificial origin causes simultaneously.
Brief description of the drawings
Fig. 1 is the structural representation of the handpiece Water Chilling Units of prior art;
Fig. 2 is structural representation of the present utility model.
Detailed description of the invention
In order to deepen understanding of the present utility model, below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, and this embodiment only, for explaining the utility model, does not form the restriction to the utility model protection domain.
Shown in Figure 2, a kind of intelligent anti-icing type handpiece Water Chilling Units, comprise refrigeration compressor 1, condenser 2, choke valve 3, evaporimeter 4, described refrigeration compressor 1, condenser 2, choke valve 3, evaporimeter 4 connect to form the loop of cold-producing medium successively, between described choke valve 3 and evaporimeter 4, be also provided with liquid way solenoid valve 5, described evaporimeter 4 is provided with electromagnetism draining valve 6, and described liquid way solenoid valve 5 is all connected PLC controller 7 with electromagnetism draining valve 6 and automatically controls.
The water outlet of described refrigeration compressor 1 and evaporimeter 4 is equipped with flow sensor 8, and described flow sensor 8 is all connected with PLC controller 7.
Described PLC controller 7 is also provided with environment temperature sensor 9.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (1)
1. the anti-icing type handpiece Water Chilling Units of intelligence, comprise refrigeration compressor, condenser, choke valve, evaporimeter, described refrigeration compressor, condenser, choke valve, evaporimeter connects to form the loop of cold-producing medium successively, it is characterized in that, between described choke valve and evaporimeter, be also provided with liquid way solenoid valve, described evaporimeter is provided with electromagnetism draining valve, described liquid way solenoid valve is all connected PLC controller with electromagnetism draining valve and automatically controls, the water outlet of described refrigeration compressor and evaporimeter is equipped with flow sensor, described flow sensor is all connected with PLC controller, described PLC controller is also provided with environment temperature sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320800507.6U CN203824181U (en) | 2013-12-06 | 2013-12-06 | Intelligent anti-icing water chilling unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320800507.6U CN203824181U (en) | 2013-12-06 | 2013-12-06 | Intelligent anti-icing water chilling unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203824181U true CN203824181U (en) | 2014-09-10 |
Family
ID=51479666
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320800507.6U Expired - Lifetime CN203824181U (en) | 2013-12-06 | 2013-12-06 | Intelligent anti-icing water chilling unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203824181U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107246740A (en) * | 2017-06-30 | 2017-10-13 | 江阴市人民医院 | New handpiece Water Chilling Units are used in medical nuclear magnetic resonance cooling |
-
2013
- 2013-12-06 CN CN201320800507.6U patent/CN203824181U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107246740A (en) * | 2017-06-30 | 2017-10-13 | 江阴市人民医院 | New handpiece Water Chilling Units are used in medical nuclear magnetic resonance cooling |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140910 |
|
| CX01 | Expiry of patent term |