Evaporative type condensation system and control method and device thereof

An evaporative condensation and evaporative condenser technology, which is applied to the control input involving air characteristics, air conditioning systems, heating and ventilation control systems, etc., can solve problems such as uniform water spray, achieve uniform water spray, stable system operation, Fouling reduction effect

Active Publication Date: 2018-04-10
GREE ELECTRIC APPLIANCES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The embodiment of the present invention provides an evaporative condensing system and its control method and device to solve the problem of how to achieve uniform water spraying in the evaporative condensing unit in the prior art under high load conditions and abnormal conditions

Method used

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  • Evaporative type condensation system and control method and device thereof
  • Evaporative type condensation system and control method and device thereof
  • Evaporative type condensation system and control method and device thereof

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Embodiment 1

[0032] figure 1 is a structural schematic diagram of an evaporative condensation system according to an embodiment of the present invention, as figure 1 As shown, 1 is the compressor, 2 is the evaporative condenser, 3 is the electronic expansion valve, 4 is the shell-and-tube evaporator, 5 is the cooling water pump, 6 is the pressure sensor, 7 is the constant water amount and liquid spraying device, 8 is Water level sensor, 9 is an electromagnetic water valve, and 10 is an ambient temperature sensor.

[0033] Compared with the existing equipment, the evaporative condensing system adds a constant water volume equalizing liquid sprinkler, a water level sensor and an electromagnetic water valve. Among them, the constant water volume and liquid spraying device is set above the evaporative condenser for water spraying operation; the water level sensor is set on the constant water volume and liquid spraying device for detecting the water level; the electromagnetic water valve is se...

Embodiment 2

[0039] image 3 It is a flowchart of a control method of an evaporative condensation system according to an embodiment of the present invention, such as image 3 As shown, the method includes the following steps (step S301-step S302):

[0040]Step S301, monitoring the water level of the evaporative condensation system; wherein, there is a corresponding relationship between the water level and the water flow;

[0041] Step S302, controlling the opening of the electromagnetic water valve according to the water flow corresponding to the water level.

[0042] In this embodiment, the water level and the water flow may have the following corresponding relationship: Q=k×h+χ; wherein, Q refers to the water flow, h refers to the water level detected by the water level sensor; k refers to the flow conversion coefficient, χ refers to the basic flow constant.

[0043] In step S302, the opening of the electromagnetic water valve is controlled according to the water flow corresponding to...

Embodiment 3

[0062] corresponds to image 3 The control method of the evaporative condensation system introduced, this embodiment provides a control device of the evaporative condensation system, such as Figure 5 The structural block diagram of the control device of the evaporative condensation system shown, the device includes:

[0063] The monitoring module 10 is used to monitor the water level of the evaporative condensation system; wherein, there is a corresponding relationship between the water level and the water flow;

[0064] The control module 20 is connected to the monitoring module 10 and is used to adjust the opening degree of the electromagnetic water valve according to the water flow corresponding to the water level.

[0065] Preferably, the above-mentioned control module 20 may include: a first control unit, which is used to control the opening of the electromagnetic water valve to full open; the second control unit is used to indicate that the water flow corresponding to...

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Abstract

The invention discloses an evaporative type condensation system and a control method and device thereof. The evaporative type condensation system comprises a constant-water quantity uniform water spraying device, a water level sensor, an electromagnetic water valve and a main control panel, wherein the constant-water quantity uniform water spraying device is arranged above an evaporative type condenser, and is used for executing water spraying operation; the water level sensor is arranged on the constant-water quantity uniform water spraying device, and is used for detecting the water level; the electromagnetic water valve is arranged at a cooling water inlet end of the system; and the main control panel is used for controlling the opening degree of the electromagnetic water valve according to the water level to achieve uniform water spraying of the constant-water quantity uniform water spraying device. Through adoption of the technical scheme, the water level of the evaporative type condensation system is monitored, the opening degree of the electromagnetic water valve is controlled according to water flow corresponding to the water level, the system can achieve uniform water spraying under high-load and abnormal working conditions, system operation is stable, scales are decreased, the service life is prolonged, and maintenance is reduced.

Description

technical field [0001] The invention relates to the field of unit technology, in particular to an evaporative condensation system and its control method and device. Background technique [0002] In recent years, with the vigorous development of my country's urban rail transit, the ventilation and air-conditioning equipment of subway stations has gradually attracted people's attention. The evaporative condensing unit has solved the problems existing in the subway air-conditioning system, such as poor energy efficiency, large cooling tower footprint, and large investment. Affecting the living environment and urban landscape and other issues. [0003] However, the evaporative condensing unit also faces problems such as unstable operation, uneven spray water, scaling on the surface of the heat exchanger, insufficient heat transfer in long-term operation, high maintenance costs, short design life, and poor regional versatility of the unit. It hinders the popularization and applic...

Claims

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Application Information

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IPC IPC(8): F24F5/00F24F11/84F24F11/64F24F110/10F24F140/12
CPCF24F5/0035
Inventor 刘洋程琦钟海玲刘思源覃业星
Owner GREE ELECTRIC APPLIANCES INC
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