阅读说明：本技术 一种新能源电机用冷水机及其调节方法 (Water chiller for new energy motor and adjusting method thereof ) 是由 李锋 孙洪宾 孙懿 范旭 于 2020-12-23 设计创作，主要内容包括：本发明涉及所述一种新能源电机用冷水机,所述冷水机与新能源电机的冷却机构连接,包括：冷凝器、压缩机、蒸发器、冷水箱、水泵、分配管路、循环管路,所述分配管路是包括分配管以及安装在分配管上的定值节流阀和电磁阀,所述分配管设有至少2根,本发明取消了压缩机的变频器,降低了成本,并且通过设置分配管路,通过设置4根分配管,4根分配管之间定值节流阀比例为关系,可以使制冷剂进行分流,通过在4根分配管上增加电磁阀,使每根分配管的通断都可控,提高响应速度,能够适应新能源电机试验时变工况下的制冷量需求的快速响应。(The invention relates to a water chiller for a new energy motor, which is connected with a cooling mechanism of the new energy motor and comprises: the invention cancels a frequency converter of the compressor, reduces the cost, and can lead the refrigerant to be divided by arranging the distribution pipeline and taking the proportion of the 4 distribution pipes and the constant throttle valves as the relation among the 4 distribution pipes by arranging the distribution pipeline, and lead the on-off of each distribution pipe to be controllable by adding the electromagnetic valves on the 4 distribution pipes, thereby improving the response speed and being capable of adapting to the quick response of the refrigerating output requirement under the variable working condition during the new energy motor test.)

1. The utility model provides a cold water machine for new forms of energy motor, the cold water machine is connected with the cooling body of new forms of energy motor, its characterized in that: the method comprises the following steps: the condenser is connected with a cooling water circulating device after water inlet and outlet of the condenser are connected with a refrigerant inlet of the evaporator through the distribution pipeline, a refrigerant inlet of the condenser is connected with a refrigerant outlet of the evaporator, and a refrigerant outlet of the condenser is connected with a water inlet of the compressor through the circulation pipeline; circulation line comprises circulation line and the solenoid valve of setting on circulation line, the evaporimeter water inlet passes through the water pump and is connected with coolant tank's delivery port, and the evaporimeter delivery port is connected with coolant tank's water inlet, coolant tank's inlet passes through the water pump and is connected with the cooling body liquid outlet of new forms of energy motor, and the cooling body liquid outlet is connected with the cooling body inlet of new forms of energy motor, distribution pipeline is including the distributing pipe and installs definite value choke valve and the solenoid valve on the distributing pipe, the distributing pipe is equipped with 2 at least, every distributing pipe one end and evaporimeter refrigerant access connection, refrigerant exit linkage in the other end and the condenser.

2. The water chiller for the new energy motor according to claim 1, wherein: the distribution pipe is equipped with 4 among the distribution pipeline, 4 the definite value choke valve proportion on the distribution pipe be 1: 1: 3: 5.

3. the water chiller for the new energy motor according to claim 2, wherein: the sum of the pipe diameters of the 4 distribution pipes is equal to the pipe diameter of a refrigerant outlet in the condenser connected with the distribution pipeline.

4. The method for adjusting the water chiller for the new energy motor according to claim 1, wherein the method comprises the following steps:

when the evaporator does not need to be cooled, the electromagnetic valve on the distribution pipeline is directly controlled to be closed, and the electromagnetic valve on the circulating pipeline is controlled to be opened, so that the evaporator can be cooled;

when the evaporator needs to be cooled, only 10 gears of flow of 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90%, 100% are realized by customizing the function of the throttle valve, and only 10 gears of solenoid valves on 4 distribution pipes need to be controlled to be opened or closed, so that the circulation speed of the refrigerant between the evaporator and the condenser can be adjusted.

Technical Field

The invention relates to a water chiller, in particular to a water chiller for a new energy motor and an adjusting method thereof.

Background

In the traditional water chiller 1, the refrigeration power of a compressor is changed by adjusting the frequency of a frequency converter, and the compressor is easy to generate larger vibration during frequency conversion; 2. closed-loop feedback of a thermostatic expansion valve, an electronic expansion valve and the like is adopted in the water chiller. Both of these methods have the problem of slow response, and cannot pre-determine in advance whether the cooling capacity needs to be increased or decreased, and the adjustment to be stable needs a long time, and after the time, the system needs new cooling capacity, so the adjustment effect is not good.

When the water chiller is applied to the dynamometer of a new energy motor, the response is slow, the new energy motor cannot be rapidly cooled, so that the new energy motor cannot be rapidly switched to the rated rotating speed due to the temperature problem when the dynamometer is used for measuring the power of the new energy motor, and the performance of the dynamometer which cannot accurately obtain the new energy motor is caused.

Disclosure of Invention

The invention aims to provide a water chiller for a new energy motor, which cancels a frequency converter of a compressor, reduces the cost, can shunt refrigerant by arranging distribution pipelines and setting 4 distribution pipes in relation to a fixed-value throttle valve proportion among the 4 distribution pipes, can control the on-off of each distribution pipe by adding electromagnetic valves on the 4 distribution pipes, improves the response speed, can adapt to the quick response of the refrigerating capacity requirement under the variable working condition during the test of the new energy motor, and solves the problems.

Technical content, a cold water machine for new forms of energy motor, the cold water machine is connected with the cooling body of new forms of energy motor, includes: the condenser is connected with a cooling water circulating device after water inlet and outlet of the condenser are connected with a refrigerant inlet of the evaporator through the distribution pipeline, a refrigerant inlet of the condenser is connected with a refrigerant outlet of the evaporator, and a refrigerant outlet of the condenser is connected with a water inlet of the compressor through the circulation pipeline; circulation line comprises circulation line and the solenoid valve of setting on circulation line, the evaporimeter water inlet passes through the water pump and is connected with coolant tank's delivery port, and the evaporimeter delivery port is connected with coolant tank's water inlet, coolant tank's inlet passes through the water pump and is connected with the cooling body liquid outlet of new forms of energy motor, and the cooling body liquid outlet is connected with the cooling body inlet of new forms of energy motor, distribution pipeline is including the distributing pipe and installs definite value choke valve and the solenoid valve on the distributing pipe, the distributing pipe is equipped with 2 at least, every distributing pipe one end and evaporimeter refrigerant access connection, refrigerant exit linkage in the other end and the condenser.

Furthermore, 4 distributing pipes are arranged in the distributing pipeline, and the proportion of the fixed-value throttle valves on the 4 distributing pipes is 1: 1: 3:

furthermore, the sum of the pipe diameters of the 4 distribution pipes is equal to the pipe diameter of a refrigerant outlet in the condenser, which is connected with the distribution pipeline.

An adjusting method of a water chiller for a new energy motor,

when the evaporator does not need to be cooled, the electromagnetic valve on the distribution pipeline is directly controlled to be closed, and the electromagnetic valve on the circulating pipeline is controlled to be opened, so that the evaporator can be cooled;

when the evaporator needs to be cooled, only 10 gears of flow of 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90%, 100% are realized by customizing the function of the throttle valve, and only 10 gears of solenoid valves on 4 distribution pipes need to be controlled to be opened or closed, so that the circulation speed of the refrigerant between the evaporator and the condenser can be adjusted.

Has the advantages that: according to the water chiller for the new energy motor and the adjusting method thereof, a frequency converter of a compressor is omitted, the cost is reduced, the refrigerant can be divided by arranging the distribution pipelines, 4 distribution pipes are arranged, and the fixed-value throttle valve proportion among the 4 distribution pipes is in a relation, the on-off of each distribution pipe is controllable by adding the electromagnetic valve on the 4 distribution pipes, so that the response speed is improved, and the quick response of the refrigerating capacity requirement under the variable working condition during the new energy motor test can be adapted.

Drawings

FIG. 1 is a schematic structural view of the present invention;

1. a condenser; 2. a compressor; 3. an evaporator; 4. a cold water tank; 5. a water pump; 6. a distribution line; 61. a distribution pipe; 62. a fixed-value throttle valve; 63. an electromagnetic valve; 7. a circulation line; 8. new forms of energy motor.

Detailed Description

As shown in fig. 1, a water chiller for a new energy motor is connected with a cooling mechanism of the new energy motor, and the cooling mechanism cools a pipe; water chiller for new forms of energy motor 8 includes: the water-cooling system comprises a condenser 1, a compressor 2, an evaporator 3, a cold water tank 4, a water pump 5, a distribution pipe 61 line 6 and a circulation line 7, wherein a water inlet and water outlet of the condenser 1 are connected with a cooling water circulation device, a refrigerant outlet in the condenser 1 is connected with a refrigerant inlet of the evaporator 3 through the distribution pipe 61 line 6, a refrigerant inlet of the condenser 1 is connected with a refrigerant outlet of the evaporator 3, and a refrigerant outlet in the condenser 1 is connected with a water inlet of the compressor 2 through the circulation line 7; circulation line 7 comprises circulation line and the solenoid valve 63 of setting on circulation line, 3 water inlets of evaporimeter pass through water pump 5 and are connected with coolant tank's delivery port, and 3 delivery ports of evaporimeter are connected with coolant tank's water inlet, coolant tank's inlet passes through water pump 5 and is connected with the cooling body liquid outlet of new forms of energy motor 8, and the coolant tank liquid outlet is connected with the cooling body inlet of new forms of energy motor 8, distributing pipe 61 way 6 is including distributing pipe 61 and install definite value choke valve 62 and the solenoid valve 63 on distributing pipe 61, distributing pipe 61 is equipped with 2 at least, every distributing pipe 61 one end and 3 refrigerant access connections of evaporimeter, the other end and condenser 1 in refrigerant exit linkage.

Furthermore, 4 distributing pipes 61 are arranged in the distributing pipe 61 line 6, and the proportion of the constant-value throttle valves 62 on the 4 distributing pipes 61 is 1: 1: 3:

further, the sum of the pipe diameters of the 4 distribution pipes 61 is equal to the pipe diameter of the refrigerant outlet in the condenser 1 connected with the pipeline 6 of the distribution pipe 61.

The new energy motor 8 adopts the regulation method of a water cooler,

the compressor 2 works, when the evaporator 3 does not need to be cooled, the electromagnetic valve 63 on the distribution pipeline 61 6 is directly controlled to be closed, and the electromagnetic valve 63 on the circulating pipeline 7 is opened, so that the evaporator 3 can be cooled;

when the evaporator 3 needs to be cooled, it is only necessary to control the opening or closing of the solenoid valves 63 on the 4 distribution pipes 61 more than necessary, and 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90%, 100% of the flow rate is realized by customizing the throttle valve to adjust the circulation rate of the refrigerant between the evaporator 3 and the condenser 1.

The above description is only a preferred mode of the present invention, and it should be noted that, for those skilled in the art, it is possible to make several similar changes and modifications without departing from the principle of the present invention, and these should be considered as being within the protection scope of the textile fabric of the present invention.