Hot fluorine defrosting valve for refrigerating unit

Abstract

The hot fluorine defrosting valve for the refrigerating unit comprises a valve body, a main pipe, a first branch pipe and a second branch pipe are arranged on the valve body, a connecting plate is fixedly connected to the top of the valve body, a servo motor is installed on the top of the connecting plate, a rotating shaft of the servo motor penetrates through the top of the valve body, and the rotating shaft of the servo motor is fixedly connected with the main pipe. The first branch pipe is fixedly connected with a valve element, a rotor is installed in the first branch pipe, and a Hall sensor and a temperature sensor are installed on the inner wall of the first branch pipe. According to the utility model, the microcontroller receives a temperature signal monitored by the temperature sensor, and precisely controls the servo motor to adjust the position of the valve core by combining with the rotating speed of the rotor detected by the Hall sensor, so that high-temperature and high-pressure hot fluorine enters the evaporator for defrosting, the Hall sensor ensures the stability of flow, and the temperature sensor monitors the temperature of a pipeline in real time; the microcontroller automatically controls the servo motor to adjust the state of the valve element according to sensor data and preset data.

Description

TECHNICAL FIELD

[0001] The utility model relates to refrigerant defrosting valve technical field, specifically, a kind of hot fluorine defrosting valve for refrigerating unit. BACKGROUND

[0002] Hot fluorine defrosting valve is the key component in refrigerating unit, mainly used for the high-efficiency defrosting of evaporator under low-temperature environment, and its working principle is to make high-temperature and high-pressure freon gas into evaporator by switching refrigerant flow direction, quickly melt frost layer, ensure the stable operation of refrigeration system, compared with traditional electric heating defrosting mode, hot fluorine defrosting valve can reduce energy consumption, improve defrosting efficiency, and prolong equipment service life, widely used in cold storage, refrigerated truck and industrial refrigeration and other fields.

[0003] However, in the existing refrigerating unit, the switching of hot fluorine defrosting valve usually depends on manual adjustment or electromagnetic control switch, wherein, when the electromagnetic control valve is switched, it is difficult to control the flow precisely, resulting in unstable refrigerant flow, and it is difficult to realize precise control of flow, and when the valve is switched manually, the operation is complex, the response speed is slow, and the defrosting effect is limited. UTILITY MODEL CONTENTS

[0004] The utility model aims at at least one of the technical problems existing in prior art.

[0005] Therefore, one purpose of the utility model is to provide a hot fluorine defrosting valve for refrigerating unit, which receives information collected by temperature sensor and hall sensor through microcontroller, accurately controls servo motor to adjust valve core, improves defrosting efficiency and automation degree, and realizes efficient, stable and controllable hot fluorine defrosting function.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a hot fluorine defrosting valve for refrigerating unit, comprising a valve body, a main pipe, a first branch pipe and a second branch pipe are arranged on the valve body, a connecting plate is fixedly connected to the top of the valve body, a servo motor is installed on the top of the connecting plate, the rotating shaft of the servo motor penetrates the top of the valve body, and a valve core is fixedly connected, a rotor is installed in the first branch pipe, a hall sensor and a temperature sensor are installed on the inner wall of the first branch pipe, and a microcontroller is installed on the outer wall of the servo motor.

[0007] Preferably, the outer wall of the servo motor is provided with a motor support.

[0008] Preferably, the hall sensor and the temperature sensor are signal connected with the microcontroller, and the servo motor is electrically connected with the microcontroller.

[0009] Preferably, a flow-stopping block is fixedly connected to one end of the first branch pipe close to the valve body.

[0010] Preferably, the flow stopping block is arc-shaped near one side of the valve body.

[0011] Preferably, the valve core is spherical.

[0012] Compared with the prior art, the beneficial effects of the utility model are: in the utility model, the microcontroller collects information according to the temperature sensor and the hall sensor, precisely controls the servo motor to adjust the valve core, makes high-temperature high-pressure hot fluorine enter the evaporator, ensures stable flow, improves defrosting efficiency and automation degree, realizes efficient, stable and controllable hot fluorine defrosting function. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a structure schematic view of the hot fluorine defrosting valve for the refrigerating unit of the utility model embodiment;

[0014] Figure 2 It is a sectional structure schematic view of the hot fluorine defrosting valve for the refrigerating unit of the utility model embodiment.

[0015] In the drawing: 1, valve body;2, main road pipe;3, first branch pipe;4, second branch pipe;5, connecting plate;6, motor support;7, servo motor;8, microcontroller;9, valve core;10, flow stopping block;11, hall sensor;12, rotor;13, temperature sensor. DETAILED DESCRIPTION

[0016] The technical scheme in the utility model embodiments will be described clearly and completely below in combination with the drawings in the utility model embodiments. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0017] Please refer to Figure 1 The embodiment of the utility model provides a kind of hot fluorine defrosting valve for refrigerating unit, comprising: valve body 1.

[0018] In the embodiment, as shown in Figure 1 And Figure 2 It is shown that the valve body 1 is provided with main road pipe 2, first branch pipe 3 and second branch pipe 4, and the top of valve body 1 is fixedly connected with connecting plate 5, and the top of connecting plate 5 is installed with servo motor 7, and the rotating shaft of servo motor 7 penetrates the top of valve body 1, and is fixedly connected with valve core 9, when using, valve core 9 is rotated by servo motor 7, realizes the flow path switching between main road pipe 2, first branch pipe 3 and second branch pipe 4, and valve core 9 is spherical, when spherical valve core 9 rotates, flow passage transition is smooth, reduces fluid resistance, ensures that the fluid switching between main road pipe 2, first branch pipe 3 and second branch pipe 4 is more smooth.

[0019] Further, the outer wall of the servo motor 7 is provided with a motor support 6, which can shield and protect the servo motor 7.

[0020] The rotor 12 is arranged in the first branch pipe 3, the Hall sensor 11 and the temperature sensor 13 are arranged on the inner wall of the first branch pipe 3, the microcontroller 8 is arranged on the outer wall of the servo motor 7, the Hall sensor 11 and the temperature sensor 13 are signal connected with the microcontroller 8, and the servo motor 7 is electrically connected with the microcontroller 8.

[0021] In use, the microcontroller 8 can receive the real-time temperature signal detected by the temperature sensor 13 and the rotor speed signal monitored by the Hall sensor 11, and compare them with the preset defrosting threshold and flow parameter, and send a control instruction to the servo motor 7 according to the comparison result to drive the valve core 9 to rotate to the corresponding position to accurately control the fluid switching of the main pipe 2, the first branch pipe 3 and the second branch pipe 4, and realize efficient and stable hot fluorine defrosting.

[0022] As shown in Figure 2 The flow-stopping block 10 is fixedly connected to one end of the first branch pipe 3 close to the valve body 1, and the side close to the valve body 1 is arc-shaped. The flow-stopping block 10 can be attached to the outer wall of the valve body 1 by using the arc surface, and when the opening of the valve body 1 moves to the flow-stopping block 10, the flow-stopping block 10 can gradually reduce the size of the opening of the valve body 1 to control the flow.

[0023] According to the above technical solution, the working steps of the present scheme are summarized and combed: in use, the valve core 9 is driven to rotate by the servo motor 7 to realize the flow path switching between the main pipe 2, the first branch pipe 3 and the second branch pipe 4.

[0024] When defrosting is needed, the microcontroller 8 receives the temperature signal monitored by the temperature sensor 13, and combines the rotor speed of the rotor 12 detected by the Hall sensor 11 to accurately control the servo motor 7 to adjust the position of the valve core 9, so that the hot fluorine with high temperature and high pressure enters the evaporator for defrosting. The Hall sensor 11 ensures the stability of the flow, the temperature sensor 13 monitors the pipeline temperature in real time, and the microcontroller 8 automatically controls the servo motor 7 to adjust the state of the valve core 9 according to the sensor data and the preset data, improves the defrosting efficiency and automation degree of the refrigeration unit, and realizes the efficient, stable and controllable hot fluorine defrosting function.

[0025] The parts not involved in the utility model are the same as the prior art or can be realized by using the prior art. Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A hot gas defrosting valve for refrigerating unit, comprising a valve body (1), wherein a main pipe (2), a first branch pipe (3) and a second branch pipe (4) are arranged on the valve body (1), characterized in that: a connecting plate (5) is fixedly connected to the top of the valve body (1), a servo motor (7) is installed on the top of the connecting plate (5), the rotating shaft of the servo motor (7) penetrates through the top of the valve body (1) and is fixedly connected with a valve core (9), a rotor (12) is installed in the first branch pipe (3), a Hall sensor (11) and a temperature sensor (13) are respectively installed on the inner wall of the first branch pipe (3), and a microcontroller (8) is installed on the outer wall of the servo motor (7).

2. A hot gas defrost valve for a refrigeration unit as set forth in claim 1, characterized in that: A motor support (6) is installed on the outer wall of the servo motor (7).

3. The hot gas defrost valve for a refrigeration unit of claim 1, wherein: The Hall sensor (11) and the temperature sensor (13) are signal connected with the microcontroller (8), and the servo motor (7) is electrically connected with the microcontroller (8).

4. The hot gas defrost valve for a refrigeration unit of claim 1, wherein: A flow-stopping block (10) is fixedly connected to one end of the first branch pipe (3) close to the valve body (1).

5. A hot gas defrost valve for a refrigeration unit as set forth in claim 4, characterized in that: The side of the flow-stopping block (10) close to the valve body (1) is arc-shaped.

6. A hot gas defrost valve for a refrigeration unit as set forth in claim 1, characterized in that: The valve core (9) is spherical.

Images