CN115854648A - Water-cooling heat exchange system and method for polyurethane raw materials of refrigerator cabinet - Google Patents
Water-cooling heat exchange system and method for polyurethane raw materials of refrigerator cabinet Download PDFInfo
- Publication number
- CN115854648A CN115854648A CN202211459361.3A CN202211459361A CN115854648A CN 115854648 A CN115854648 A CN 115854648A CN 202211459361 A CN202211459361 A CN 202211459361A CN 115854648 A CN115854648 A CN 115854648A
- Authority
- CN
- China
- Prior art keywords
- temperature
- raw material
- polyurethane raw
- water
- circulating water
- 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.)
- Pending
Links
- 239000002994 raw material Substances 0.000 title claims abstract description 146
- 229920002635 polyurethane Polymers 0.000 title claims abstract description 135
- 239000004814 polyurethane Substances 0.000 title claims abstract description 135
- 238000001816 cooling Methods 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 title claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 160
- 238000004364 calculation method Methods 0.000 claims abstract description 28
- 238000004891 communication Methods 0.000 claims abstract description 8
- 239000000463 material Substances 0.000 claims description 22
- 238000005187 foaming Methods 0.000 description 12
- 239000002699 waste material Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Landscapes
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The application provides a water-cooling heat exchange system and method for polyurethane raw materials of a refrigerator cabinet, comprising the following steps: the polyurethane raw material temperature detector is arranged in the polyurethane raw material storage barrel and at the outlet end; the circulating water thermometers are arranged at the inlet end and the outlet end of the circulating water heat exchanger; the control chip is configured to receive the temperatures of the polyurethane raw material in the storage barrel, the temperature of the outlet end of the storage barrel and the temperature of the inlet end and the outlet end of the circulating water heat exchanger, which are measured by the polyurethane raw material temperature measurer and the circulating water temperature measurer, and calculate according to a calculation rule to obtain a calculation result; the variable frequency water pump is connected with the circulating water heat exchanger, is in communication connection with the control chip, and is configured to receive an operation result of the control chip and adjust output power according to the operation result so as to solve the problems that the existing water-cooling heat exchange system for the polyurethane raw materials of the refrigerator cabinet can only adjust the temperature of circulating water in a manual adjusting mode and the circulating water pump can not adjust power.
Description
Technical Field
The application relates to the technical field of refrigerator manufacturing, in particular to a water-cooling heat exchange system and method for polyurethane raw materials of a refrigerator cabinet.
Background
At present, heat insulation materials used for manufacturing the refrigerator body and the door body of the refrigerator cabinet are polyurethane, the polyurethane needs to keep constant temperature when in use, and constant temperature has great influence on the polyurethane foaming quality. In order to keep the polyurethane raw material at a constant temperature, a water-cooled heat exchanger is generally adopted, and the temperature of the polyurethane raw material is constant in a water-cooled mode.
The temperature control mode of the polyurethane raw materials of the refrigerator cabinet at present is as follows: a temperature detector is arranged in the polyurethane raw material storage tank and used for measuring the temperature of the polyurethane raw material; the circulating water is cooled through a temperature change pipeline, and a temperature detector is arranged in the circulating water tank to measure the temperature of the circulating water. The temperature of the polyurethane raw material is displayed on a foaming operation table in real time, and the temperature of the circulating water is displayed on a water tank operation table. When the operator observes that the temperature of the polyurethane raw material is not in the set temperature range, the operator adjusts the temperature of the circulating water on the operating platform of the circulating water incubator to ensure that the temperature of the polyurethane raw material reaches the required range.
Therefore, the temperature control of the polyurethane raw material requires an operator to adjust the set temperature of the circulating water, and the polyurethane raw material has certain hysteresis; meanwhile, the temperature of the raw materials is the temperature of the raw materials in the storage tank, a certain deviation exists between the temperature of the raw materials and the temperature of the raw materials in the storage tank when the raw materials are used through a pipeline, and the influence of the environmental temperature on the raw materials is obvious. In addition, the temperature of the polyurethane raw material can be observed by an operator, so that the risk that the temperature of the polyurethane raw material is not in the process requirement range and the foaming quality problem is easy to occur due to the fact that the operator forgets to observe the temperature when the operator is busy exists, and the operator depends on the working experience of the operator. The circulating water pump with the water-cooled heat exchanger is a fixed-frequency motor, the power is designed according to the maximum power, and the power cannot be adjusted during use, so that the phenomenon of electric energy waste exists.
Disclosure of Invention
The embodiment of the application provides a refrigerator cabinet polyurethane raw material water-cooling heat exchange system and a refrigerator cabinet polyurethane raw material water-cooling heat exchange method, which aim to solve the problems that the foaming quality problem is caused by the fact that the temperature of polyurethane raw materials is controlled only by manually controlling the temperature of circulating water in the existing refrigerator cabinet polyurethane raw material water-cooling heat exchange system and the working experience of operators is greatly depended; and the circulating water pump of the water-cooled heat exchanger is a fixed-frequency motor, the power is designed according to the maximum power, and the power cannot be adjusted during use, so that the technical problem of electric energy waste is also solved.
This application first aspect provides a refrigerator cabinet polyurethane raw materials water cooling heat exchange system, includes:
the polyurethane raw material thermometers are arranged in the barrel and at the outlet end of the polyurethane raw material storage barrel and are configured to measure the temperature in the barrel and the temperature at the outlet end of the polyurethane raw material storage barrel;
the circulating water thermometers are arranged at the inlet end and the outlet end of the circulating water heat exchanger and are configured to measure the inlet end temperature and the outlet end temperature of the circulating water heat exchanger;
the control chip is in communication connection with the polyurethane raw material temperature detector and the circulating water temperature detector, is configured to receive the temperatures of the polyurethane raw material in the storage barrel, the temperature of the outlet end of the storage barrel and the temperature of the inlet end and the outlet end of the circulating water heat exchanger, which are measured by the polyurethane raw material temperature detector and the circulating water temperature detector, and performs operation according to a calculation rule to obtain an operation result;
the variable-frequency water pump is connected with the circulating water heat exchanger, is in communication connection with the control chip, and is configured to receive an operation result of the control chip and adjust output power according to the operation result.
In some embodiments, the control chip comprises:
a receiving unit configured to receive an in-tank temperature and an outlet-end temperature of the polyurethane raw material storage tank and an inlet-end temperature and an outlet-end temperature of the circulating water heat exchanger;
the computing unit is configured to perform operation by using the computing rule to obtain an operation result;
and the sending unit is configured to send the calculated operation result to the variable-frequency water pump.
In some embodiments, the variable frequency water pump is provided with three gears.
In some embodiments, an operation panel is arranged on the variable-frequency water pump and configured to acquire a control instruction input by a user, and adjust the output power and the output time according to the control instruction.
The second aspect of the present application provides a method for exchanging heat and cold of polyurethane raw material in refrigerator cabinet, which is applied to the system for exchanging heat and cold of polyurethane raw material in refrigerator cabinet, and comprises:
transmitting the temperature in the polyurethane raw material storage barrel and the outlet end temperature measured by the polyurethane raw material temperature meter and the inlet end temperature and the outlet end temperature of the circulating water heat exchanger measured by the circulating water temperature meter to a control chip, and calculating by the control chip according to a calculation rule to obtain a calculation result;
and transmitting the operation result to a variable frequency water pump, and adjusting the temperature of the outlet end of the polyurethane raw material storage barrel by the variable frequency water pump through adjusting the output power.
In some embodiments, the operation rule is C Material ＝C Water (W) * K, wherein, C Material As raw material energy, K is the heat exchange coefficient; c Material ＝c Material *m Material *t Material (ii) a Wherein, C Water (W) Is the energy of circulating water; c Water (W) ＝c Water (W) *m Water (W) *t Water (W) Wherein c is heat capacity, m is mass, and t is temperature difference.
In some embodiments, the method for exchanging heat and cold of refrigerator cabinet polyurethane raw material water further comprises:
and acquiring a control instruction input by a user based on an operation panel of the variable-frequency water pump, and adjusting the output power and the output time according to the control instruction.
The application provides a water-cooling heat exchange system and a water-cooling heat exchange method for polyurethane raw materials of refrigerator cabinets, which comprise the following steps: the polyurethane raw material temperature detector is arranged in the polyurethane raw material storage barrel and at the outlet end; the circulating water thermometers are arranged at the inlet end and the outlet end of the circulating water heat exchanger; the control chip is configured to receive the temperatures of the polyurethane raw material in the storage barrel, the temperature of the outlet end of the storage barrel and the temperature of the inlet end and the outlet end of the circulating water heat exchanger, which are measured by the polyurethane raw material temperature measurer and the circulating water temperature measurer, and calculate according to a calculation rule to obtain a calculation result; the variable frequency water pump is connected with the circulating water heat exchanger and is in communication connection with the control chip and configured to receive an operation result of the control chip and adjust output power according to the operation result so as to solve the problems that the existing refrigerator cabinet polyurethane raw material water-cooling heat exchange system can only adjust circulating water temperature in an artificial adjustment mode and the circulating water pump cannot adjust power.
Drawings
In order to more clearly explain the technical solution of the present application, the drawings needed to be used in the embodiments are briefly described below, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a water heat exchange system for polyurethane raw materials of an ice chest and a refrigerator according to the present application;
fig. 2 is a flow chart of a water-cooling heat exchange method for polyurethane raw materials of an ice chest in the application.
Description of reference numerals:
1-polyurethane raw material thermometer; 2-circulating water temperature detector; 3-a control chip; 31-a receiving unit; 32-a calculation unit; 33-a transmitting unit; 4-variable frequency water pump; 41-control panel.
Detailed Description
In order to make those skilled in the art better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making any creative effort shall fall within the protection scope of the present application.
In some technologies, the water-cooling heat exchange system for the polyurethane raw materials in the refrigerator cabinet can only adjust the temperature of circulating water in an artificial adjustment mode, so that the risk of foaming quality problems is easy to occur, and the work experience of operators is very depended on. The circulating water pump of the water-cooled heat exchanger is a fixed-frequency motor, the power is designed according to the maximum use power, and the power cannot be adjusted during use, so that the phenomenon of electric energy waste is avoided, and in order to solve the technical problem, the application provides a water-cooled heat exchange system and a water-cooled heat exchange method for polyurethane raw materials of a refrigerator cabinet, and the structures of all parts of the water-cooled heat exchange system for polyurethane raw materials of the refrigerator cabinet are explained as follows:
as can be seen from fig. 1, a first aspect of the present application provides a refrigerator cabinet polyurethane raw material water heat exchange system, comprising: the polyurethane raw material temperature measuring device 1 is arranged in the barrel and at the outlet end of the polyurethane raw material storage barrel and is configured to measure the temperature in the barrel and the temperature at the outlet end of the polyurethane raw material storage barrel; the circulating water temperature measuring meter 2 is arranged at the inlet end and the outlet end of the circulating water heat exchanger and is configured to measure the inlet end temperature and the outlet end temperature of the circulating water heat exchanger; the control chip 3 is in communication connection with the polyurethane raw material temperature detector 1 and the circulating water temperature detector 2, and is configured to receive the temperatures of the polyurethane raw material in the storage barrel, the temperature of the outlet end of the storage barrel and the temperature of the inlet end and the outlet end of the circulating water heat exchanger, which are measured by the polyurethane raw material temperature detector 1 and the circulating water temperature detector 2, and perform operation according to a calculation rule to obtain an operation result; the variable-frequency water pump 4 is connected with the circulating water heat exchanger, the variable-frequency water pump 4 is in communication connection with the control chip 3, and is configured to receive an operation result of the control chip 3 and adjust output power according to the operation result.
In this embodiment, the polyurethane raw material thermometer 1 is provided with two temperature sensors respectively disposed in the barrel of the polyurethane raw material storage barrel and at the outlet end of the polyurethane raw material storage barrel, and measures the temperature of the polyurethane raw material in the polyurethane raw material storage barrel and the temperature of the polyurethane raw material at the outlet end of the polyurethane raw material storage barrel when the polyurethane raw material is discharged; the circulating water temperature measuring meter 2 is provided with two circulating water temperature measuring devices which are respectively arranged at the inlet end and the outlet end of the circulating water heat exchanger and can measure the temperature of circulating water in real time; the polyurethane raw material temperature detector 1 and the circulating water temperature detector 2 are both provided with wireless transmission devices, so that the measured temperature of the outlet end of the polyurethane raw material storage barrel and the temperature of the inlet end and the outlet end of the circulating water heat exchanger can be wirelessly transmitted to the control chip 3 in real time; the control chip 3 brings the temperature values into the calculation rules through the calculation rules set by internal input to obtain calculation results and transmits the calculation results to the variable frequency water pump 4, the variable frequency water pump adjusts the output power of the variable frequency water pump according to the calculation results until the polyurethane raw material reaches the preset outlet end temperature, so that the water pump is controlled in an unmanned mode, the temperature of the polyurethane raw material is automatically adjusted, the automation of the water cooling and heating exchange system for the refrigerator polyurethane raw material is achieved, the polyurethane raw material is not required to be adjusted by means of continuous observation of workers, and the foaming quality of the polyurethane is improved due to the constant temperature of the polyurethane raw material.
As can be seen from fig. 1, the control chip 3 includes: a receiving unit 31 configured to receive the in-tank temperature and the outlet-end temperature of the polyurethane raw material storage tank and the inlet-end temperature and the outlet-end temperature of the circulating water heat exchanger; a calculation unit 32 configured to perform an operation using the calculation rule to obtain an operation result; a sending unit 33 configured to send the calculated operation result to the variable frequency water pump 4.
The receiving unit 31 is a program element on the control chip 3 that can receive the temperature inside the polyurethane raw material storage barrel and the temperature at the outlet end of the polyurethane raw material storage barrel and the temperature at the inlet end and the temperature at the outlet end of the circulating water heat exchanger; the calculating unit 32 is a program element which can store the calculation rule program and complete the calculation on the control chip 3; the sending unit 33 is arranged on the control chip 3 and can send the operation result of the calculating unit 32 to the variable frequency water pump 4.
In this embodiment, the variable frequency water pump 4 is provided with three gears, the power adjustment of the variable frequency water pump 4 is divided into three adjustment amounts, the power adjustment amounts are respectively 10%, 20% and 25% (10/20/25% of the total power), respectively correspond to low, medium and high gears, and correspond to difference absolute values of 0-2 ℃ (including 2 ℃), 2-4 ℃, and more than or equal to 5 ℃. After the power is adjusted each time, the system runs for a period of time (the time given by the application is 30-60 minutes) according to the adjusted power, the control chip 3 does not adjust the power of the variable frequency water pump 4 any more in the period of time, the power of the variable frequency water pump 4 is kept constant all the time in the period of time, and after the period of time, the system judges whether the temperature of the polyurethane raw material discharge port is in a set range again. If the temperature is within the set range, continuing to operate according to the state, and keeping the temperature of the polyurethane forgiveness constant; if the temperature is not within the set range, the adjustment is carried out again, and after the time, the judgment is carried out again until the temperature of the polyurethane raw material outlet is controlled within the set range.
It can be understood that the power adjustment amount of the variable frequency water pump 4 is adjusted according to the difference between the measured temperature of the polyurethane raw material discharge port and the set temperature range of the temperature of the polyurethane raw material discharge port, and if the difference is in the range of 0-2 ℃ (including 2 ℃), the power adjustment is adjusted to be a low gear, namely 10% power adjustment; if the difference is within the range of 2-4 ℃, the power is adjusted to be a middle gear, namely 20 percent of power adjustment; if the difference is within the range of more than or equal to 5 ℃, the high gear is adjusted, namely 25% power adjustment.
As shown in fig. 1, the variable frequency water pump is provided with an operation panel 41 configured to obtain a control command input by a user, and adjust output power and output time according to the control command.
It can be understood that when the foaming operation is not performed, the temperature of the polyurethane raw material can be automatically adjusted in the water-cooling heat exchange system of the polyurethane raw material in the refrigerator cabinet in advance, so that the temperature of the discharge port of the polyurethane raw material is kept within a set range, and the foaming operation is waited to be performed; however, if the polyurethane raw material is about to be foamed, the polyurethane raw material cannot be adjusted in the water-cooled heat exchange system for polyurethane raw materials in the refrigerator cabinet by itself, a worker needs to set the power of the variable frequency water pump 4 through the operation panel 41 of the variable frequency water pump 4, and the power of the variable frequency water pump 4 can be arbitrarily adjusted on the control panel 41 of the variable frequency water pump 4, so that the polyurethane raw material reaches a set range as soon as possible, and is applied to the foaming work as soon as possible, thereby improving the work efficiency.
As can be seen from fig. 2, the second aspect of the present application provides a refrigerator cabinet polyurethane raw material water-cooling heat exchange method, and a refrigerator cabinet polyurethane raw material water-cooling heat exchange system using the method, including:
s110, transmitting the temperature in the polyurethane raw material storage barrel and the temperature at the outlet end of the polyurethane raw material storage barrel measured by a polyurethane raw material temperature meter and the temperature at the inlet end and the temperature at the outlet end of a circulating water heat exchanger measured by a circulating water temperature meter to a control chip, and calculating by the control chip according to a calculation rule to obtain a calculation result;
and S120, transmitting the operation result to a variable frequency water pump, and adjusting the temperature of the outlet end of the polyurethane raw material storage barrel by the variable frequency water pump through adjusting the output power.
It can be understood that the refrigerator cabinet polyurethane raw material water-cooling heat exchange system sets parameters according to weather conditions (namely environment temperature) before use, the parameters comprise a raw material discharge port temperature range, raw material flow (fixed), circulating water outlet water temperature and variable frequency water pump power, the system is set to be in medium-grade power operation, and then the system enters an operation state. The polyurethane raw material temperature detector 1 measures the outlet end temperature of the polyurethane raw material storage barrel in real time and transmits the outlet end temperature to the control chip 3, and when the control chip 3 detects that the outlet end temperature of the polyurethane raw material storage barrel exceeds or is lower than a set temperature range, the control chip 3 calculates C according to an operation rule Material And C Water (W) And sending a signal to the variable frequency water pump 4 according to the power adjustment amount corresponding to the difference absolute value, wherein the power adjustment amount is increased or decreased by the variable frequency water pump 4. Then the polyurethane raw material storage barrel is operated for 30 minutes according to the adjusted power, after 30-60 minutes, whether the temperature of the outlet end of the polyurethane raw material storage barrel is within a set temperature range interval is detected again, and if the temperature is within the set range, the polyurethane raw material storage barrel is operated continuously according to the state; if not, the adjustment is carried out again, and 30 to 60 minutes laterAnd judging again until the temperature of the raw material outlet is controlled within a set range.
In this embodiment, the operation rule is C Material ＝C Water (W) * K, wherein C Material As raw material energy, K is the heat exchange coefficient; c Material ＝c Material *m Material *t Material (ii) a Wherein, C Water (W) Is the energy of circulating water; c Water (W) ＝c Water (W) *m Water (W) *t Water (W) Wherein c is heat capacity, m is mass, and t is temperature difference.
In this embodiment, t can be obtained by the polyurethane raw material thermometer 1 Material The value is that the cross section of the pipeline is a known value, and m can be known by measuring the flow velocity of the raw material Material The value, the flow rate of the raw material are also constant, the heat capacity c of the raw material is kept constant Material Is a known value; in the same way, can learn c Water (W) 、m Water (W) 、t Water (W) A numerical value; the heat exchange coefficient K is a known empirical value. Thus, the variable values are the raw material temperature, the circulating water temperature and the circulating water flow as variables; because the outlet end temperature of the polyurethane raw material storage barrel is set to be 16-22 ℃ in the normal operation process, and the outlet water temperature of the circulating water is also set to be a certain fixed value of 16-22 ℃, when the system sets parameters and the system is in operation, the control chip 3 can calculate the flow rate of the circulating water according to the outlet end temperature of the polyurethane raw material storage barrel by monitoring the temperatures in the polyurethane raw material storage barrel and the outlet end temperature of the polyurethane raw material storage barrel. When the temperature of the outlet end of the polyurethane raw material storage barrel exceeds a set temperature range, the control chip 3 transmits the operation result to the variable frequency water pump 4 after calculating according to the operation rule, and increases the power of the variable frequency water pump 4, namely, improves the circulating water flow, so that the temperature of the outlet end of the polyurethane raw material storage barrel is reduced to reach the set temperature range; and in a similar way, when the temperature of the outlet end of the polyurethane raw material storage barrel is lower than the set temperature range, the control chip 3 transmits the operation result to the variable frequency water pump after calculating according to the operation rule, so that the power of the variable frequency water pump is reduced, namely, the circulating water flow is reduced, and the temperature of the outlet end of the polyurethane raw material storage barrel is increased to reach the set temperature range.
As shown in fig. 2, the method for exchanging heat and cold of polyurethane raw material for refrigerator and freezer further includes:
and S130, acquiring a control instruction input by a user based on an operation panel of the variable frequency water pump, and adjusting output power and output time according to the control instruction.
It can be understood that the operating panel 41 of the variable frequency water pump 4 can adjust the power value of the variable frequency water pump 4 at will, so as to meet the requirement that a worker is in a hurry to raise or lower the temperature of the polyurethane raw material during foaming work so as to meet the requirement of foaming work, avoid that the power of the variable frequency water pump 4 can only be limited to the low and medium gears of the variable frequency water pump, and improve the temperature adjusting capability of the water-cooling heat exchange system for the polyurethane raw material in the refrigerator cabinet during foaming work, thereby improving the working efficiency.
The above embodiments are only intended to be specific embodiments of the present application, and are not intended to limit the scope of the embodiments of the present application, and any modifications, equivalent substitutions, improvements, and the like made on the basis of the technical solutions of the embodiments of the present application should be included in the scope of the embodiments of the present application.
Claims (7)
1. A refrigerator cabinet polyurethane raw material water-cooling heat exchange system is characterized by comprising:
the polyurethane raw material temperature measuring device (1) is arranged in the barrel and at the outlet end of the polyurethane raw material storage barrel and is configured to measure the temperature in the barrel and the temperature at the outlet end of the polyurethane raw material storage barrel;
the circulating water temperature measuring device (2) is arranged at the inlet end and the outlet end of the circulating water heat exchanger and is configured to measure the temperature of the inlet end and the temperature of the outlet end of the circulating water heat exchanger;
the control chip (3) is in communication connection with the polyurethane raw material temperature detector (1) and the circulating water temperature detector (2), and is configured to receive the temperatures of the polyurethane raw material in the storage barrel, the outlet end and the inlet end of the circulating water heat exchanger, which are measured by the polyurethane raw material temperature detector (1) and the circulating water temperature detector (2), and calculate according to a calculation rule to obtain a calculation result;
the variable-frequency water pump (4), the variable-frequency water pump (4) is connected with the circulating water heat exchanger, the variable-frequency water pump (4) is in communication connection with the control chip (3), and the variable-frequency water pump is configured to receive an operation result of the control chip (3) and adjust output power according to the operation result.
2. A refrigerator cabinet polyurethane raw material water-cooling heat exchange system as claimed in claim 1, wherein said control chip (3) comprises:
a receiving unit (31) configured to receive an in-barrel temperature and an outlet-end temperature of the polyurethane raw material storage barrel and an inlet-end temperature and an outlet-end temperature of the circulating water heat exchanger;
a calculation unit (32) configured to perform an operation using the calculation rule to obtain a calculation result;
a transmitting unit (33) configured to transmit the calculated calculation result to the variable frequency water pump (4).
3. A refrigerator cabinet polyurethane raw material water-cooling heat exchange system as claimed in claim 1, wherein the variable frequency water pump (4) is provided with three gears.
4. The refrigerator cabinet polyurethane raw material water cooling and heat exchanging system as claimed in claim 1, wherein the variable frequency water pump is provided with an operation panel (41) configured to obtain a control command input by a user, and adjust the output power and the output time according to the control command.
5. A refrigerator polyurethane raw material water cooling and heat exchanging method applied to the refrigerator polyurethane raw material water cooling and heat exchanging system of any one of claims 1 to 4, characterized by comprising the following steps:
transmitting the temperature in the polyurethane raw material storage barrel and the outlet end temperature measured by the polyurethane raw material temperature meter and the inlet end temperature and the outlet end temperature of the circulating water heat exchanger measured by the circulating water temperature meter to a control chip, and calculating by the control chip according to a calculation rule to obtain a calculation result;
and transmitting the operation result to a variable frequency water pump, and adjusting the temperature of the outlet end of the polyurethane raw material storage barrel by the variable frequency water pump through adjusting the output power.
6. A refrigerator cabinet polyurethane raw material water cooling and heat exchanging method as claimed in claim 5, wherein the operation rule is C Material ＝C Water (I) * K, wherein, C Material As raw material energy, K is the heat exchange coefficient; c Material ＝c Material *m Material *t Material (ii) a Wherein, C Water (W) Is the energy of circulating water; c Water (W) ＝c Water (W) *m Water (W) *t Water (W) Wherein c is heat capacity, m is mass, and t is temperature difference.
7. A refrigerator cabinet polyurethane raw material water-cooling heat exchange method according to claim 5, further comprising:
and acquiring a control instruction input by a user based on an operation panel of the variable-frequency water pump, and adjusting the output power and the output time according to the control instruction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211459361.3A CN115854648A (en) | 2022-11-17 | 2022-11-17 | Water-cooling heat exchange system and method for polyurethane raw materials of refrigerator cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211459361.3A CN115854648A (en) | 2022-11-17 | 2022-11-17 | Water-cooling heat exchange system and method for polyurethane raw materials of refrigerator cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115854648A true CN115854648A (en) | 2023-03-28 |
Family
ID=85664510
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211459361.3A Pending CN115854648A (en) | 2022-11-17 | 2022-11-17 | Water-cooling heat exchange system and method for polyurethane raw materials of refrigerator cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115854648A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014089000A2 (en) * | 2012-12-03 | 2014-06-12 | Ge Healthcare Bio-Sciences Corp. | Temperature controlling surfaces and support structures |
| US20140326329A1 (en) * | 2011-09-02 | 2014-11-06 | Aurotec Gmbh | Heat exchanger pipe system |
| CN110951019A (en) * | 2019-11-11 | 2020-04-03 | 清远市蓝林新材料有限公司 | Polyurethane composition for wood-like spraying full-water foaming system, preparation method and equipment |
| CN110986388A (en) * | 2019-12-18 | 2020-04-10 | 吴美君 | Intelligent solar photovoltaic photo-thermal collector and control method thereof |
| CN211492350U (en) * | 2019-12-25 | 2020-09-15 | 广东向诚新材料有限公司 | Raw materials emulsification bucket of polyurethane production |
-
2022
- 2022-11-17 CN CN202211459361.3A patent/CN115854648A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140326329A1 (en) * | 2011-09-02 | 2014-11-06 | Aurotec Gmbh | Heat exchanger pipe system |
| WO2014089000A2 (en) * | 2012-12-03 | 2014-06-12 | Ge Healthcare Bio-Sciences Corp. | Temperature controlling surfaces and support structures |
| CN110951019A (en) * | 2019-11-11 | 2020-04-03 | 清远市蓝林新材料有限公司 | Polyurethane composition for wood-like spraying full-water foaming system, preparation method and equipment |
| CN110986388A (en) * | 2019-12-18 | 2020-04-10 | 吴美君 | Intelligent solar photovoltaic photo-thermal collector and control method thereof |
| CN211492350U (en) * | 2019-12-25 | 2020-09-15 | 广东向诚新材料有限公司 | Raw materials emulsification bucket of polyurethane production |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105022429B (en) | Using gas as the back-heating type enclosed thermoregulating system and its temperature control method of heat transfer medium | |
| CN101832618B (en) | Frequency control method and control device of compressor of air conditioner | |
| CN108241388A (en) | Temprature control method, system and device | |
| CN115832532B (en) | Control method, device and system of liquid cooling energy storage system | |
| CN107196012B (en) | A kind of cold and hot fluid circulation for power battery bench test | |
| CN108800689A (en) | A kind of multiple water chiller-heater unit and its control method, control device | |
| CN106839329A (en) | It is applied to the temperature-compensating computational methods and device of multi-online indoor machine | |
| CN105135606B (en) | The method and apparatus for controlling air-conditioning | |
| CN111678721A (en) | Air conditioner test simulation load system and method | |
| CN115854648A (en) | Water-cooling heat exchange system and method for polyurethane raw materials of refrigerator cabinet | |
| CA2881086C (en) | System for controlling operation of an hvac system | |
| JP6235937B2 (en) | Heat source equipment control device and air conditioning system | |
| RU2570784C2 (en) | Method and plant of temperature regulation in building | |
| CN217276921U (en) | Refrigeration performance test system suitable for semiconductor water-cooling type refrigeration module | |
| CN102722196B (en) | Temperature control device and temperature control system | |
| CN206369294U (en) | Clean thermostatic chamber combines temperature-controlling system | |
| CN208752472U (en) | A kind of cold and hot temperature control system of impingement box | |
| CN203643803U (en) | Distilled water machine monitor system based on 3G wireless network | |
| CN205409360U (en) | Deep -fried twisted dough sticks face all -in -one | |
| CN218068675U (en) | Temperature measurement and control integrated equipment for mass concrete | |
| WO2015186181A1 (en) | Control device for refrigerating and air conditioning devices | |
| CN214746690U (en) | Cooling circulating water system of refrigerating machine | |
| CN113725522B (en) | Energy-saving temperature adjusting device and control method thereof | |
| CN213457793U (en) | Intelligent thermostatic bath | |
| CN210895147U (en) | Automatic cooling water constant-temperature control system for battery formation process |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |