Direct connection pressure separating system for heat supply and iar conditioner

Abstract

The present invention belongs to the field of heat supply and air conditioner equipment, and features that it contains control tank, boosting pump, control valve, check valve in water supply pipe andcheck valve in water return pipe. The control tank is connected to water supply pipe in the upper part and the water return pipe in lower part; the control valve is connected to the output end of the control unit; the control unit has its input connected to the control output of the control tank; and the two check valves are interlinked with the pump separately.

Description

Technical field [0001] The invention belongs to the field of heating and air-conditioning equipment, and particularly relates to a direct-connected pressure separation system for heating and air-conditioning that enables users with different operating pressures to be connected together on a hydraulic system. Background technique [0002] In heating and air conditioning systems, when a local system is connected to the main system, there is often a conflict that the operating pressures of the local system and the main system are different. For example, in a larger heat network, in order to maintain the normal operation of the heat network system, the operating pressure of the main heat network will exceed the pressure-bearing capacity of some user radiators, and direct connection will cause the radiator to burst. In addition, high-rise buildings or terrain The height difference between them will also create a contradiction between the operating pressure and the pressure bearin...

AI Technical Summary

Problems solved by technology

[0005] Heat exchangers will lead to reduced thermal efficiency and inevitable temperature loss, especially in low-temperature water heating and air-conditioning systems, the disadvantages of using heat exchangers are particularly obvious, because after the low-temperature water is heat-exchanged, the temperature of the supply water is further reduced, and the user radiator The area increases, the heating effect deteriorates, the heat exchanger and the increased radiator increase the investment of the system; in the air conditioning system, the use of the heat exchanger will increase the temperature of the chilled water, in order to minimize the increase of the chilled water temperature, it must be increased The area of ​​the heat exchanger and the increase in temperature affect the effect of the air conditioner, and also increase the cost of the heat exchanger and terminal equipment

These well-known unfavorable factors lead to the decline of the function of the system, which greatly reduces the overall advantage of the system

[0006] Open overflow riser systems also have insurmountable disadvantages

First of all, because it is connected with the atmosphere, the system will inevitably enter a large amount of air, which will affect the operation of the system and corrode the pipeline; secondly, the open overflow riser system is a half-pipe flow, which is similar to the drainage riser, and there is a lot of noise. The kinetic energy of the water falling in the pipe will cause pressure fluctuations in the system

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