CN203190732U - Anti-freezing water chilling unit - Google Patents
Anti-freezing water chilling unit Download PDFInfo
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- CN203190732U CN203190732U CN201320145444.5U CN201320145444U CN203190732U CN 203190732 U CN203190732 U CN 203190732U CN 201320145444 U CN201320145444 U CN 201320145444U CN 203190732 U CN203190732 U CN 203190732U
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Abstract
An anti-freezing water chilling unit comprises a compressor, a condenser, a dry filter, an expansion valve and an evaporator, wherein the compressor, the condenser, the dry filter, the expansion valve and the evaporator are communicated in sequence to form a refrigerant circulating system. A refrigerant outlet of the evaporator is communicated with an inlet of the compressor, an outlet of the compressor is communicated with a refrigerant inlet of the condenser, a refrigerant outlet of the condenser is communicated with a refrigerant inlet of the evaporator through the dry filter and the expansion valve, the evaporator is further provided with a chilled water inlet and a chilled water outlet, the chilled water outlet of the evaporator is provided with a temperature controller and a flow switch, and the refrigerant circulating system is further provided with an evaporating pressure controller, a low-pressure pressure controller, a high-pressure pressure controller and a solenoid valve. By enabling the evaporating pressure controller for sensing refrigerant pressure to be additionally arranged on the evaporator outlet and by enabling the temperature controller and the flow switch for sensing temperature and flow of chilled water to be additionally arranged on the chilled water outlet, the evaporator is monitored from three aspects including pressure, temperature and flow, frost cracking of the evaporator is avoided, and anti-freezing capability of the water chilling unit is improved.
Description
Technical field
The utility model relates to a kind of antifreeze handpiece Water Chilling Units.
Background technology
Handpiece Water Chilling Units generally with water as main heat transferring medium, suitable water temperature is the necessary guarantee of handpiece Water Chilling Units reliably working, water temperature is crossed and lowly can be caused that the handpiece Water Chilling Units evaporimeter freezes, faults such as evaporating pressure is low excessively, compressor liquid hammer.Therefore suitable means to prevent freezing is the important assurance of avoiding handpiece Water Chilling Units to break down.The means to prevent freezing of current handpiece Water Chilling Units mainly is that the outlet pipe at chilled water increases temperature controller, when the water temperature that senses when temperature controller is lower than setting value, and compressor emergency shutdown, when the water temperature that senses is higher than setting value, the unit operation that resets.The water temperature that only relies on temperature controller to sense in the said method is protected the operation of unit; reliability is not high; for example; when the evaporator water flow reduces; or refrigerant temperature crosses when low, because local heat exchange inequality still can cause the chilled water water temperature low excessively; the evaporimeter bursting by freezing causes unit normally to move.Therefore, be necessary to be further improved.
The utility model content
The purpose of this utility model aims to provide a kind of simple in structure, reliability is high, maintenance cost is low antifreeze handpiece Water Chilling Units, to overcome weak point of the prior art.
A kind of antifreeze handpiece Water Chilling Units by this purpose design, comprise and be communicated with the compressor that forms refrigerant-cycle systems successively, condenser, device for drying and filtering, expansion valve and evaporimeter, wherein the refrigerant outlet of evaporimeter is communicated with the entrance of compressor, the outlet of compressor is communicated with the refrigerant inlet of condenser, the refrigerant outlet of condenser is communicated with the refrigerant inlet of evaporimeter by device for drying and filtering and expansion valve, also be provided with chilled water inlet and chilled water outlet on the evaporimeter, its architectural feature is that the chilled water outlet of evaporimeter is provided with temperature controller and flow switch, also is provided with the evaporating pressure controller on the refrigerant-cycle systems, the low pressure controller, high-pressure controller and magnetic valve.
Described evaporating pressure controller and low pressure controller are successively set between the entrance of the refrigerant outlet of evaporimeter and compressor, and described high-pressure controller is arranged between the refrigerant inlet of the outlet of compressor and condenser.
Described magnetic valve is communicated with between the refrigerant inlet of the refrigerant inlet that is arranged on condenser and expansion valve, and wherein the entrance of magnetic valve is communicated with and is arranged between the refrigerant inlet and high-pressure controller of condenser.
Described temperature controller, flow switch, evaporating pressure controller, low pressure controller, high-pressure controller, magnetic valve all are electrically connected with controller.
The utility model is by increasing the evaporating pressure controller of sensing refrigerant pressure at evaporator outlet, increase temperature controller and the flow switch of sensing chilled water temperature and flow at chilled water outlet, from pressure, temperature, the monitoring of flow three aspects, the device bursting by freezing that avoids evaporating improves the antifreeze ability of unit.The utility model effectively solves water temperature in the evaporimeter and crosses low and cause the problem of evaporimeter bursting by freezing, strengthens the antifreeze reliability of unit, improves the product quality of cold water, alleviates maintenance cost.
Description of drawings
Fig. 1 is the structural representation of the utility model one embodiment.
Among the figure: 1 is compressor, and 2 is the high-pressure controller, and 3 is condenser, 4 is device for drying and filtering, 5 is expansion valve, and 6 is evaporimeter, and 6.1 is chilled water inlet, 6.2 be chilled water outlet, 7 is the low pressure controller, and 8 is the evaporating pressure controller, and 9 is magnetic valve, 10 is temperature controller, and 11 is flow switch.Arrow points is the flow direction of cold-producing medium among the figure.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is further described.
Referring to Fig. 1, a kind of antifreeze handpiece Water Chilling Units, comprise and be communicated with the compressor 1 that forms refrigerant-cycle systems successively, condenser 3, device for drying and filtering 4, expansion valve 5 and evaporimeter 6, wherein the refrigerant outlet of evaporimeter 6 is communicated with the entrance of compressor 1, the outlet of compressor 1 is communicated with the refrigerant inlet of condenser 3, the refrigerant outlet of condenser 3 is communicated with the refrigerant inlet of evaporimeter 6 by device for drying and filtering 4 and expansion valve 5, also be provided with chilled water inlet 6.1 and chilled water outlet 6.2 on the evaporimeter 6, the chilled water outlet 6.2 of evaporimeter 6 is provided with temperature controller 10 and flow switch 11, also is provided with evaporating pressure controller 8 on the refrigerant-cycle systems, low pressure controller 7, high-pressure controller 2 and magnetic valve 9.Evaporating pressure controller 8 and low pressure controller 7 are stated between the entrance of the refrigerant outlet that is successively set on evaporimeter 6 and compressor 1, and high-pressure controller 2 is arranged between the refrigerant inlet of the outlet of compressor 1 and condenser 3.Magnetic valve 9 is communicated with between the refrigerant inlet of the refrigerant inlet that is arranged on condenser 3 and expansion valve 5, and wherein the entrance of magnetic valve 9 is communicated with and is arranged between the refrigerant inlet and high-pressure controller 2 of condenser 3.Temperature controller 10, flow switch 11, evaporating pressure controller 8, low pressure controller 7, high-pressure controller 2, magnetic valve 9 all are electrically connected with controller.
The antifreeze handpiece Water Chilling Units of the utility model, take measures to improve the antifreeze ability of antifreeze handpiece Water Chilling Units from pressure, temperature, three aspects of flow, its control method is as follows: the control of (1) evaporating pressure: when the evaporating pressure of evaporating pressure controller 8 sensings is lower than setting value, control system provides signal, magnetic valve 9 is opened, introduce the entrance that the part gases at high pressure enter evaporimeter 6 from compressor 1 exhaust, improve evaporating pressure; When the evaporating pressure that senses when evaporating pressure controller 8 was higher than reset values, control system provided signal, and magnetic valve 9 cuts out, and stopped the conveying of gases at high pressure in the evaporimeter 6; (2) control of chilled water temperature: when the chilled water temperature that senses when temperature controller 10 was lower than setting value, controller provided stopping signal, avoided unit to continue operation and damaged evaporimeter 6; When the water temperature that senses when temperature controller 10 was higher than reset values, controller provided the unit starting run signal; (3) control of chilled-water flow: the chilled-water flow that senses when flow switch 11 is lower than setting value, and controller provides the compressor emergency shutdown signal; The discharge that senses when flow switch 11 is higher than reset values, and controller provides the unit starting signal.
Carrying out antifreeze method with current temperature-sensitive chilled water temperature compares; this method is carried out antifreeze from the protection of pressure, temperature, flow three aspects; protect more comprehensive; antifreeze reliability is higher; when improving the handpiece Water Chilling Units product quality; reduced maintenance cost, be applicable in the manufacturing of existing handpiece Water Chilling Units or new product and adopt.
Should be understood that; application of the present utility model is not limited to above-mentioned giving an example; for those of ordinary skills, can be improved according to the above description or conversion, all these improvement and conversion all should belong to the protection domain of the utility model claims.
Claims (4)
1. antifreeze handpiece Water Chilling Units, comprise and be communicated with the compressor (1) that forms refrigerant-cycle systems successively, condenser (3), device for drying and filtering (4), expansion valve (5) and evaporimeter (6), wherein the refrigerant outlet of evaporimeter is communicated with the entrance of compressor, the outlet of compressor is communicated with the refrigerant inlet of condenser, the refrigerant outlet of condenser is communicated with the refrigerant inlet of evaporimeter by device for drying and filtering and expansion valve, also be provided with chilled water inlet (6.1) and chilled water outlet (6.2) on the evaporimeter, the chilled water outlet that it is characterized in that evaporimeter is provided with temperature controller (10) and flow switch (11), also is provided with evaporating pressure controller (8) on the refrigerant-cycle systems, low pressure controller (7), high-pressure controller (2) and magnetic valve (9).
2. antifreeze handpiece Water Chilling Units according to claim 1, it is characterized in that institute's evaporating pressure controller (8) and low pressure controller (7) are successively set between the entrance of the refrigerant outlet of evaporimeter (6) and compressor (1), described high-pressure controller (2) is arranged between the refrigerant inlet of the outlet of compressor and condenser (3).
3. antifreeze handpiece Water Chilling Units according to claim 1 and 2, it is characterized in that described magnetic valve (9) is communicated with between the refrigerant inlet of the refrigerant inlet be arranged on condenser (3) and expansion valve (5), wherein the entrance of magnetic valve is communicated with and is arranged between the refrigerant inlet and high-pressure controller (2) of condenser.
4. antifreeze handpiece Water Chilling Units according to claim 3 is characterized in that described temperature controller (10), flow switch (11), evaporating pressure controller (8), low pressure controller (7), high-pressure controller (2), magnetic valve (9) all are electrically connected with controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320145444.5U CN203190732U (en) | 2013-03-27 | 2013-03-27 | Anti-freezing water chilling unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320145444.5U CN203190732U (en) | 2013-03-27 | 2013-03-27 | Anti-freezing water chilling unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203190732U true CN203190732U (en) | 2013-09-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320145444.5U Expired - Lifetime CN203190732U (en) | 2013-03-27 | 2013-03-27 | Anti-freezing water chilling unit |
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| CN (1) | CN203190732U (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104729033A (en) * | 2015-04-03 | 2015-06-24 | 深圳麦克维尔空调有限公司 | Anti-freezing method and device for water chilling unit of air conditioning unit |
| CN105135772A (en) * | 2015-08-06 | 2015-12-09 | 佛山市顺德区美的饮水机制造有限公司 | Water cooling device and control method for preventing cold water from freezing |
| CN107101406A (en) * | 2017-05-23 | 2017-08-29 | 海英荷普曼船舶设备(常熟)有限公司 | Constant temperature handpiece Water Chilling Units peculiar to vessel |
| CN107131598A (en) * | 2017-06-14 | 2017-09-05 | 四川依米康环境科技股份有限公司 | A kind of cooling water air conditioner system |
| CN109282417A (en) * | 2018-09-12 | 2019-01-29 | 珠海格力电器股份有限公司 | Anti-freezing control method and system for heat pump unit |
| CN110299216A (en) * | 2019-03-06 | 2019-10-01 | 中广核工程有限公司 | It is a kind of for the cooling apparatus of the interim cooling supply of nuclear power plant nuclear island and for cooling method |
| CN110657582A (en) * | 2019-09-11 | 2020-01-07 | 广东万家乐燃气具有限公司 | Anti-freezing water heater and control method thereof |
| CN110762673A (en) * | 2019-11-06 | 2020-02-07 | 珠海格力电器股份有限公司 | Cold water air conditioning system, anti-freezing control method thereof, storage medium and computer equipment |
| CN113865167A (en) * | 2021-10-20 | 2021-12-31 | 中国船舶重工集团公司第七0四研究所 | Anti-freezing control method for water chilling unit |
| CN116558144A (en) * | 2023-06-28 | 2023-08-08 | 荏原冷热系统（中国）有限公司 | Judgment method for anti-freezing pipe of evaporator of lithium bromide absorption refrigerator |
-
2013
- 2013-03-27 CN CN201320145444.5U patent/CN203190732U/en not_active Expired - Lifetime
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104729033A (en) * | 2015-04-03 | 2015-06-24 | 深圳麦克维尔空调有限公司 | Anti-freezing method and device for water chilling unit of air conditioning unit |
| CN104729033B (en) * | 2015-04-03 | 2018-07-10 | 深圳麦克维尔空调有限公司 | The antifreeze method and apparatus of the handpiece Water Chilling Units of air-conditioner set |
| CN105135772A (en) * | 2015-08-06 | 2015-12-09 | 佛山市顺德区美的饮水机制造有限公司 | Water cooling device and control method for preventing cold water from freezing |
| CN105135772B (en) * | 2015-08-06 | 2017-10-27 | 佛山市顺德区美的饮水机制造有限公司 | Water refrigerating plant and its control method for preventing cold water from freezing |
| CN107101406A (en) * | 2017-05-23 | 2017-08-29 | 海英荷普曼船舶设备(常熟)有限公司 | Constant temperature handpiece Water Chilling Units peculiar to vessel |
| CN107131598A (en) * | 2017-06-14 | 2017-09-05 | 四川依米康环境科技股份有限公司 | A kind of cooling water air conditioner system |
| CN109282417A (en) * | 2018-09-12 | 2019-01-29 | 珠海格力电器股份有限公司 | Anti-freezing control method and system for heat pump unit |
| CN110299216A (en) * | 2019-03-06 | 2019-10-01 | 中广核工程有限公司 | It is a kind of for the cooling apparatus of the interim cooling supply of nuclear power plant nuclear island and for cooling method |
| CN110657582A (en) * | 2019-09-11 | 2020-01-07 | 广东万家乐燃气具有限公司 | Anti-freezing water heater and control method thereof |
| CN110762673A (en) * | 2019-11-06 | 2020-02-07 | 珠海格力电器股份有限公司 | Cold water air conditioning system, anti-freezing control method thereof, storage medium and computer equipment |
| CN113865167A (en) * | 2021-10-20 | 2021-12-31 | 中国船舶重工集团公司第七0四研究所 | Anti-freezing control method for water chilling unit |
| CN116558144A (en) * | 2023-06-28 | 2023-08-08 | 荏原冷热系统（中国）有限公司 | Judgment method for anti-freezing pipe of evaporator of lithium bromide absorption refrigerator |
| CN116558144B (en) * | 2023-06-28 | 2023-09-19 | 荏原冷热系统（中国）有限公司 | Judgment method for anti-freezing pipe of evaporator of lithium bromide absorption refrigerator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 528300, 8, No. ten, flourishing machinery equipment garden, Chencun Town, Shunde District, Guangdong, Foshan Patentee after: Guangdong Shenling Environmental Systems Co.,Ltd. Address before: 528300, Foshan District, Guangdong City, Shunde province Chencun Chencun Industrial Zone Patentee before: GUANGDONG SHENLING AIR-CONDITIONING EQUIPMENT Co.,Ltd. |
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| CX01 | Expiry of patent term |
Granted publication date: 20130911 |
|
| CX01 | Expiry of patent term |