CN209857446U - Automatic detection and judgment device for abnormal cooling state of water-cooling water chiller - Google Patents

Automatic detection and judgment device for abnormal cooling state of water-cooling water chiller Download PDF

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Publication number
CN209857446U
CN209857446U CN201822029303.2U CN201822029303U CN209857446U CN 209857446 U CN209857446 U CN 209857446U CN 201822029303 U CN201822029303 U CN 201822029303U CN 209857446 U CN209857446 U CN 209857446U
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water
cooling
pipeline
temperature sensor
cooling water
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CN201822029303.2U
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方财
徐志东
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BAIWANG PLASTIC EQUIPMENT (SUZHOU) Co Ltd
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BAIWANG PLASTIC EQUIPMENT (SUZHOU) Co Ltd
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Abstract

An automatic detection and judgment device for abnormal cooling state of a water cooling chiller; the water-cooling water chiller comprises a water-cooling condenser, wherein a water inlet pipeline and a water outlet pipeline of cooling water, and an inflow pipeline and an outflow pipeline of a refrigerant are arranged on the water-cooling condenser; the device comprises a temperature sensor, a pressure sensor and a control circuit; the control circuit is electrically connected with the temperature sensor and the pressure sensor; the temperature sensor is arranged corresponding to a water outlet pipeline or a water inlet pipeline of the cooling water; the pressure sensor is arranged in the outflow pipeline of the refrigerant. The utility model discloses detecting cooling water by temperature sensor and intaking or going out the water temperature, pressure sensor detects the outflow pressure of refrigerant, and control system handles two sensor signals, judges whether the cold water machine is in abnormal state through the difference comparison to remind user's solution problem, and then guarantee that the machine moves under high-efficient safe state, extension unit life.

Description

Automatic detection and judgment device for abnormal cooling state of water-cooling water chiller
Technical Field
The utility model relates to a water-cooling cold water machine technical field, concretely relates to rely on condensing pressure and the automatic device that judges condenser scale deposit, filter filth stifled of cooling water inflow temperature for water-cooling cold water machine.
Background
The conventional water-cooling water chiller does not have the functions of automatically judging the scaling of a condenser and the filth blockage of a filter, and can only be stopped by the action of a high-pressure alarm system of the water chiller after the scaling of the condenser and the filth blockage of the filter occur, so that the water chiller can run in an inefficient and unsafe state, and the service life of the water chiller is shortened for a long time.
Therefore, how to solve the above-mentioned deficiencies of the prior art is a problem to be solved by the present invention.
Disclosure of Invention
The utility model aims at providing a water-cooling is cooling abnormal state automated inspection judgement device for water-cooling chiller.
In order to achieve the above purpose, the utility model adopts the technical scheme that:
an automatic detection and judgment device for abnormal cooling state of a water cooling chiller; the water-cooling water chiller comprises a water-cooling condenser, wherein a water inlet pipeline and a water outlet pipeline of cooling water, and an inflow pipeline and an outflow pipeline of a refrigerant are arranged on the water-cooling condenser;
the refrigerant finishes the phase change from gas state to liquid state through the water-cooled condenser, and the cooling water takes away the heat generated during the phase change, so the water temperature in the water outlet pipeline of the cooling water is higher than the water temperature in the water inlet pipeline;
the automatic detection and judgment device comprises a temperature sensor, a pressure sensor and a control circuit; the control circuit is electrically connected with the temperature sensor and the pressure sensor;
the temperature sensor is arranged corresponding to a water inlet pipeline or a water outlet pipeline of the cooling water; the pressure sensor is arranged in the refrigerant outflow pipeline.
The relevant content in the above technical solution is explained as follows:
1. in the above scheme, the control circuit is electrically connected with an alarm circuit, and when the water chiller is in an abnormal state (such as a dirty filter or/and a dirty condenser), the alarm circuit gives an alarm prompt.
The alarm prompting mode can be displayed through a display device, and can also be used for informing a user that an abnormal state of the water chiller, including a dirty filter or/and a dirty condenser, occurs and a corresponding measure should be taken to solve the abnormal state.
2. In the above scheme, the temperature sensor is arranged in a water inlet pipeline of the cooling water.
The temperature sensor detects the water inlet temperature of the cooling water in real time; the pressure sensor detects the outflow pressure of the refrigerant in real time, the detected pressure value corresponds to the saturation temperature of the refrigerant, if the pressure value is high, the saturation temperature of the refrigerant at the moment is high, otherwise, the saturation temperature is low;
the control circuit calculates the difference between the saturation temperature of the refrigerant and the inlet water temperature of the cooling water at the moment, and compares the difference with a preset value or a preset threshold value;
if the difference value reaches or exceeds the preset value, alarming and stopping the machine;
or if the difference value is within the preset threshold value, performing pre-warning, and if the difference value exceeds the preset threshold value, performing warning prompt and stopping the machine.
The preset value or the preset threshold value is an artificial set value and is used for adjusting the sensitivity of the device.
3. In the above scheme, the temperature sensor is arranged in the water outlet pipeline of the cooling water.
And the difference value is the difference value between the saturation temperature of the refrigerant and the outlet water temperature of the cooling water, and the judgment mechanism is the same as that when the temperature sensor is arranged on the cooling water inlet pipeline.
The utility model discloses a theory of operation and advantage as follows:
compared with the prior art, the utility model discloses detecting cooling water by temperature sensor and intaking or going out the water temperature, pressure sensor detects the outflow pressure of refrigerant, and control system receives two sensor signals and calculates out the difference after handling and compares with the default, judges whether there is condenser scale deposit or/and the filth abnormal conditions such as stifled of filter in the cold water machine, gives the warning simultaneously, reminds the user to take corresponding measure, forces the shutdown protection until the machine. Therefore, the utility model discloses can guarantee that the machine moves under high-efficient safe state, extension unit life.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
In the above drawings: 1. a water-cooled condenser; 2. a water inlet pipeline; 3. a water outlet pipeline; 4. an inflow conduit; 5. an outflow line; 6. a temperature sensor; 7. a pressure sensor; 8. a cooling water filter.
Detailed Description
The invention will be further described with reference to the following drawings and examples:
example (b): referring to fig. 1, an apparatus for automatically detecting and determining a cooling abnormal state for a water chiller; the water-cooling water chiller comprises a water-cooling condenser 1, wherein a water inlet pipeline 2 and a water outlet pipeline 3 of cooling water, and an inflow pipeline 4 and an outflow pipeline 5 of refrigerant are arranged on the water-cooling condenser 1.
The refrigerant finishes the phase change from gas state to liquid state through the water-cooled condenser 1, and the cooling water takes away the heat generated during the phase change, so the water temperature in the water outlet pipeline 3 of the cooling water is higher than the water temperature in the water inlet pipeline 2; the cooling water is not only water, but also other cooling media.
The automatic detection judging device comprises a temperature sensor 6, a pressure sensor 7 and a control circuit (not shown); the control circuit is electrically connected with the temperature sensor 6 and the pressure sensor 7.
The temperature sensor 6 is arranged corresponding to the cooling water inlet pipeline 2 and is positioned on the water outlet side of a cooling water filter 8. The pressure sensor 7 is arranged in the outflow line 5 of the refrigerant.
The control circuit is electrically connected with an alarm circuit (not shown in the figure), and when the water chiller is in an abnormal state (such as the filter 8 is dirty and/or the condenser 1 is fouled), the alarm circuit gives an alarm prompt.
The temperature sensor 6 detects the water inlet temperature of the cooling water in real time; the pressure sensor 7 detects the outflow pressure of the refrigerant in real time, the detected pressure value corresponds to the saturation temperature of the refrigerant, if the pressure value is high, the saturation temperature of the refrigerant at the moment is high, otherwise, the saturation temperature is low;
the control circuit calculates the difference between the saturation temperature of the refrigerant and the inlet water temperature of the cooling water at the moment, and compares the difference with a preset value or a preset threshold value;
if the difference value reaches or exceeds the preset value, alarming and stopping the machine; or if the difference value is within the preset threshold value, performing pre-warning, and if the difference value exceeds the preset threshold value, performing warning prompt and stopping the machine.
The alarm prompting mode can be displayed through display equipment, and can also be used for notifying a user that an abnormal state of the water chiller occurs through sound or/and light prompting or/and alarming, and corresponding measures are taken for solving the problem.
The preset value or the preset threshold value is an artificial set value and is used for adjusting the sensitivity of the device.
In addition, the temperature sensor 6 can also be arranged in the water outlet pipeline 3 of the cooling water. At this time, the difference is the difference between the saturation temperature of the refrigerant and the outlet water temperature of the cooling water, and the judgment mechanism is the same as that when the temperature sensor 6 is arranged on the cooling water inlet pipeline 2.
Besides the temperature sensor 6 used in the present embodiment, a flow sensor may be used to monitor the flow rate of the cooling water in real time, and if the flow rate becomes small, it indicates that the filter 8 is clogged.
Compared with the prior art, the utility model discloses detecting cooling water by temperature sensor and intaking or going out the water temperature, pressure sensor detects the outflow pressure of refrigerant, and control system receives two sensor signals and calculates out the difference after handling and compares with the default, judges whether there is condenser scale deposit or/and the filth abnormal conditions such as stifled of filter in the cold water machine, gives the warning simultaneously, reminds the user to take corresponding measure, forces the shutdown protection until the machine. Therefore, the utility model discloses can guarantee that the machine moves under high-efficient safe state, extension unit life.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable people skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.

Claims (4)

1. A water-cooled chiller is with cooling abnormal state automatic detection judgement device, the said water-cooled chiller includes the water-cooled condenser, there are inlet pipe and outlet pipe of the cooling water, inflow pipeline and outflow pipeline of the refrigerant on the water-cooled condenser;
the refrigerant finishes the phase change from gas state to liquid state through the water-cooled condenser, and the cooling water takes away the heat generated during the phase change, so the water temperature in the water outlet pipeline of the cooling water is higher than the water temperature in the water inlet pipeline;
the method is characterized in that: the automatic detection and judgment device comprises a temperature sensor, a pressure sensor and a control circuit; the control circuit is electrically connected with the temperature sensor and the pressure sensor;
the temperature sensor is arranged corresponding to a water inlet pipeline or a water outlet pipeline of the cooling water; the pressure sensor is arranged in the refrigerant outflow pipeline.
2. The apparatus of claim 1, wherein: the temperature sensor is arranged in a water inlet pipeline of the cooling water.
3. The apparatus of claim 1, wherein: the temperature sensor is arranged in a water outlet pipeline of the cooling water.
4. The apparatus of claim 1, wherein: the control circuit is electrically connected with an alarm circuit, and when the cooling water machine is in an abnormal cooling state, the alarm circuit gives an alarm prompt.
CN201822029303.2U 2018-12-04 2018-12-04 Automatic detection and judgment device for abnormal cooling state of water-cooling water chiller Active CN209857446U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201822029303.2U CN209857446U (en) 2018-12-04 2018-12-04 Automatic detection and judgment device for abnormal cooling state of water-cooling water chiller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201822029303.2U CN209857446U (en) 2018-12-04 2018-12-04 Automatic detection and judgment device for abnormal cooling state of water-cooling water chiller

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CN209857446U true CN209857446U (en) 2019-12-27

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111707042A (en) * 2020-06-30 2020-09-25 长沙新材料产业研究院有限公司 Water supply protection system and method for MPCVD diamond synthesis equipment
CN114413646A (en) * 2020-10-28 2022-04-29 艾默生环境优化技术(苏州)有限公司 Dirty blockage state determination device and determination method for condenser

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111707042A (en) * 2020-06-30 2020-09-25 长沙新材料产业研究院有限公司 Water supply protection system and method for MPCVD diamond synthesis equipment
CN114413646A (en) * 2020-10-28 2022-04-29 艾默生环境优化技术(苏州)有限公司 Dirty blockage state determination device and determination method for condenser

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