Summary of the operation method of the freezer, who can explain the working principle of the freezer

1.Preparation: Check whether the power supply, refrigerant, compressor, condenser, evaporator and other components of the freezer are operating normally, and clean the inside and outside of the freezer.

2.Before starting: Turn on the power switch of the freezer, then turn on the power switch of the compressor, wait a few minutes for the compressor to run to normal state.

3.Adjust the temperature: Adjust the temperature controller of the freezer to the desired temperature as needed.

4.Loading items: Place items that need to be frozen in the freezer, taking care not to exceed the freezer's capacity.

5.Shutdown: When you need to turn off the freezer, first turn off the temperature controller, then turn off the compressor power switch, and finally turn off the freezer power switch.

6.Maintenance: Clean the inside and outside of the refrigerator regularly, check whether the refrigerant, compressor, condenser, evaporator and other components are in normal operation, and replace the damaged parts in time.

7.Safety precautions: When operating the freezer, it is necessary to pay attention to safety and avoid accidents such as electric shock and scalding. At the same time, follow the operating procedures and do not change the settings of the freezer at will.

You can learn about the temperature controlled freezer in the middle energy, and the quality is guaranteed!

Refrigeration Mechanism Refrigerant Circulation System Working Principle:

The liquid refrigerant in the evaporator absorbs the heat in the water and begins to evaporate, and finally a certain temperature difference is formed between the refrigerant and the water, and the liquid refrigerant also completely evaporates into a gaseous state, and then is sucked in and compressed by the compressor (pressure and temperature increase), and the gaseous refrigerant absorbs heat through the condenser (air-cooled water-cooled) and condenses into a liquid. After passing through the expansion valve (or capillary), it becomes a low-temperature and low-pressure refrigerant into the evaporator to complete the refrigerant circulation process.

Freezer water circulation system working principle:

The water pump is responsible for pumping the water from the tank to the equipment that needs to be cooled by the user, and the chilled water takes the heat away and the temperature rises before returning to the chilled water tank.

The working principle of the refrigerator temperature control system: including the power supply part and the automatic temperature control part.

The power supply part is through the contactor, to the compressor, fan, water pump and other ** power supply. The automatic control part includes thermostats, pressure protection, time delays, relays, overload protection, etc.

Mutual combination to achieve the root water temperature automatic start and stop, protection and other functions.

The environment does work on the system, transferring heat from a low-temperature object to a high-temperature object. For example, well, for example. When the refrigerator is operated by using electrical energy, the refrigerator is cooled and the air conditioner is cooled.

1. Select the switch to move to the manual position.

2. Open the exhaust shut-off valve of the compressor. 3. The pointer of the slide valve is at the position of "0", that is, the position of 10% load.

4. Press the electric heating button, the heating light is on, and the oil temperature rises to 40, then press the heating stop button.

5. Press the starting button of the water pump to supply water to the oil cooler.

6. Press the oil pump button to start the oil pump, and the oil return solenoid valve c will be automatically opened at the same time.

After seconds to 10 seconds, the difference between oil pressure and exhaust pressure can reach , according to the main engine.

Start button, compressor start, bypass solenoid valve A is automatically opened, oil return solenoid valve c self.

Motion closes. 8. Observe the suction pressure gauge and gradually open the suction shut-off valve.

When the compressor enters the running state, the A valve is closed quickly, and the oil pressure regulating valve is adjusted to make the oil pressure (fuel injection.

pressure and exhaust pressure).

9. After the pressure and temperature difference of the compressor operation are normal, check the sealing of each moving part, temperature measurement and pressure measurement point.

Circumstance. 1. Put the energy adjusting handle in the load reduction position to make the slide valve retreat to "0".

2. Press the parking button of the main engine to stop the main machine.

3. Close the suction valve.

4. Chang stop the oil pump.

5. Stop the water pump.

Mainly write about the content of the work, the achievements, and the shortcomings, and finally put forward reasonable suggestions or new directions... **: Summary, is to conduct a comprehensive and systematic general inspection, general evaluation, general analysis, total research of a period of time, analysis of achievements, deficiencies, experience, etc.

Summarizing is a type of applied writing, which is the rational thinking of the work that has already been done. Summarizing and planning are complementary to each other, and it is necessary to take the plan as the basis, and the formulation of the plan is always carried out on the basis of personal experience. Basic Requirements for Summarizing 1 The summary must have an overview and narrative of the situation, some of which are relatively simple, and some of which are more detailed.

This part mainly analyzes the subjective and objective conditions of work, favorable and unfavorable conditions, as well as the working environment and foundation. 2 Achievements and shortcomings. This is the center of the summary.

The purpose of summarizing is to affirm the achievements and find out the shortcomings. What are the achievements, how big are them, what are the aspects, and how they were achieved; It should be clearly explained how many shortcomings there are, in which aspects, in what nature, and how they arise. 3 Lessons learned.

Having done something, there will always be experiences and lessons. In order to facilitate future work, it is necessary to analyze, study, generalize, and concentrate the experiences and lessons learned from past work, and to raise the level of theory to understand. Future plans.

According to the tasks and requirements of the future work, draw on the experience and lessons of the previous period, clarify the direction of efforts, and put forward improvement measures. This is the basis for analysis and drawing lessons. 2 Be organized.

The summary is written for people to read, and if it is not well organized, people will not be able to read it, and even if they read it, they will not know why, so the purpose of the summary will not be achieved. 3 It should be cut appropriately and appropriately. Materials are essential and phenomenal; There are important and secondary, and when writing, we should remove the essence from the details.

The questions in the summary should be divided into priority and detail, and the details should be detailed, and the details should be omitted. Basic format of summary 1, title 2, body Beginning: overview of the situation, overall evaluation; The outline is summarized and the whole text is summarized.

Subject: Analyze the shortcomings of the achievements and summarize the lessons learned. Ending:

Analyze the problem and clarify the direction. 3. Signature, date.

I am glad that Hu Gong of the Technical Department of Kaideli Chiller will answer for you.

What industries can be used in industrial refrigeration are as follows:

1.Chemical industry.

The industrial refrigeration chemical industry is mainly used for the cooling and cooling of chemical reactors (chemical heat exchangers), and the ordinary heat caused by chemical reactions is taken away in time to achieve the purpose of cooling (cooling), so as to improve product quality.

2.Manufacturing industry of plastic products, plastic containers, food packaging films, medical packaging films, etc.

In the injection molding process of plastic products (televisions, computers, washing machines, mobile phones, refrigerators, air conditioners, plastic toys, automotive plastic parts, etc.), whether the industrial freezer can be cooled (cooled) in a timely and effective manner will directly affect the appearance brightness and appearance pass rate of the product, thereby affecting the consumption efficiency, consumption cost and corporate profits. The consumption of plastic containers (bottle blowing) and packaging film is inseparable from freezers (water chillers). If the plastic container cannot be cooled and shaped in time during the consumption process, the consumed container will not be full, the wall thickness will be uneven, the color will not be bright, and even the product quality will not be formed.

In the consumption of packaging film, if there is no cold water (wind) cooling molding, it is impossible to consume qualified products. For example, the use of cold water (air) provided by the freezer (chiller) to cool, can not only greatly improve the product quality, but also improve the consumption efficiency.

3.Cooling of electroplating fluids, hydraulic fluids and coolant for machine tool cutting tools.

When the temperature of the electroplating solution is higher than the requirements of the process, the stability, uniformity, flatness and appearance brightness of the surface plating layer of the electroplating products consumed have a great impact. The freeze provided by the freezer (water chiller) needs to be kept or cooled at a specific temperature during the consumption process of the electronic components, so that the performance parameters of the electronic components can be controlled in the designed state. Water to cool and maintain the constant temperature of the electroplating solution will greatly improve the electroplating consumption process and consumption efficiency.

The cooling of the coolant of the cutting tool of the machine tool and the control of the temperature of the cutting edge of the tool will directly affect the service life and product quality of the tool.

4.Pharmaceutical industry.

In the pharmaceutical industry, industrial refrigeration is mainly used to control the temperature and humidity of the consumption workshop and to bring out the reaction heat in the process of consuming APIs.

5.Electronics industry.

Industrial refrigeration needs to keep or cool the components at a specific temperature during the consumption of electronic components, so that the performance parameters of electronic components can be controlled in the designed state. Industrial freezers are used in a wide range of uses, such as bread and pastries, and there are many freezers used in university laboratories for testing and experiments, and the air conditioning industry is indispensable.