CN203533751U

CN203533751U - Central air conditioning system capable of controlling cold supply

Info

Publication number: CN203533751U
Application number: CN201320574353.3U
Authority: CN
Inventors: 李毅
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-09-17
Filing date: 2013-09-17
Publication date: 2014-04-09
Anticipated expiration: 2023-09-17

Abstract

The utility model discloses a central air conditioning system capable of controlling cold supply. The central air conditioning system comprises a refrigerating unit and a chilled water unit. The chilled water unit comprises vertical pipelines, horizontal pipelines and a circulating water pump, wherein the vertical pipelines and the horizontal pipelines are used for water supply and water return. The horizontal pipelines are connected with multiple sets of draught fan coil pipes through valves, and the vertical pipelines for water return and the horizontal pipelines for water return are connected through electronic control butterfly valves. The pipelines for water return are controlled by the electronic control butterfly valves, operation can be conveniently conducted in a central control room, labor cost is saved, and meanwhile running cost of a central air conditioner is saved.

Description

Can control the central air conditioner system of cooling

Technical field

The utility model relates to refrigeration system, relates in particular to a kind of central air conditioner system of controlling cooling.

Background technology

Central air-conditioning has obtained universal use as the necessary supporting cooling equipment of office building.Generally, air-condition freezing waterpipe is laid with same laminar and different laminar stringing.Generally, on every layer of horizontal pipe and on the pipeline of registering one's residence, the water-in and water-out pipeline of chilled water pipe all adds Hand-operated butterfly valve (installing hand sluice valve additional on the pipeline of registering one's residence), opens and closes the effect of pipeline chilled water when installing, overhauling as this layer (or in our unit) pipeline and fan coil.In office building, the normal working time is 8:00-18:00, there is no At All Other Times air-conditioning, or mansion estate management unit will collect the charges according to user's time added-time.Due to always inaccurate according to air-conditioning charge on traffic, easily produce dispute, so being area, most of situation collects added-time expense.And in period added-time, have tenant to apply for, and could open central air-conditioning, do not apply for that floor must could control it and not use by closing This floor valve, otherwise will cause the rising of loss of refrigeration capacity and operation of air conditioner cost.

Often in actual moving process, there is part tenant only to apply for several hours of regular working day the added-time in the evening, or Saturday, added-time on Sunday, controlling non-added-time floor must control by closing the horizontal valve of floor, control mode has not only increased the weight of cost of labor like this, the normal operation of the central air-conditioning simultaneously also affecting and the service life of valve.

Utility model content

The purpose of this utility model is the defect existing for above-mentioned prior art, a kind of separated regions is provided, controls at times the central air conditioner system of cooling.

The technical solution adopted in the utility model is, design a kind of central air conditioner system of controlling cooling, comprise refrigeration unit and refrigerating water sets, described refrigerating water sets comprises for supplying water and vertical pipeline, the horizontal pipe of backwater, and water circulating pump, described horizontal pipe is connected with many groups fan coil by valve, wherein, and for adopting automatically controlled butterfly valve to connect between the vertical pipeline of backwater and horizontal pipe.

For adopting automatically controlled butterfly valve to be connected between the horizontal pipe of backwater and the water return pipeline of fan coil.

Compared with prior art, the utlity model has following beneficial effect:

1, can be at times, minute floor or region be to room cooling, saves the operating cost of central air-conditioning;

2, water return pipeline adopts electrically-controlled valve to control, convenient in central control room operation, saves human cost.

Accompanying drawing explanation

Fig. 1 is the schematic diagram of the utility model one embodiment.

The specific embodiment

Below in conjunction with drawings and Examples, utility model is described in detail.

The central air conditioner system of the cooling controlled the utility model proposes as shown in Figure 1, comprises: refrigeration unit and refrigerating water sets.Refrigerating water sets comprises vertical water supply line 1, vertical return road 2, horizontal water supply line 3, horizontal water return pipeline 4 and water circulating pump (not shown).Horizontal water supply line 3 is connected with many groups fan coil by valve.In this embodiment, vertically between water supply line 1 and horizontal water supply line 3, by Hand-operated butterfly valve 7, be connected, between vertical return road 2 and horizontal water return pipeline 4, adopt automatically controlled butterfly valve 5 connections.Between the water return pipeline of horizontal water return pipeline 4 and fan coil 6, also adopt automatically controlled butterfly valve 5 to be connected.In figure, schematically show the structure of the first floor L1.

In normal working hours, open all electric butterfly valves, the improper cooling period, the electric butterfly valve of selectively unlocking added-time floor (or added-time unit), guarantees the normal use of central air-conditioning.

Electric butterfly valve in floor is mutually chain with group control system, (central air-conditioning of most of office building is realized large and small main frame and is coordinated according to the quantity of opening electric butterfly valve, to select to open air-conditioner host, as too smallly in refrigeration duty just move little machine, the excessive large machine of operation of just selecting of refrigeration duty) also regulate constantly its refrigeration duty, realize the energy-saving run of central air-conditioning.

For existing air-conditioning system, consider improvement cost and effect, chilled water water return pipeline Hand-operated butterfly valve can be adapted as to electric butterfly valve, the signal of electric butterfly valve be linked into mansion central air-conditioning group control system simultaneously and connect, then by central air-conditioning group control system, control the switch of floor motor-driven valve.

Above-described embodiment is only for illustrating the specific embodiment of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and variation, these distortion and variation all should belong to protection scope of the present invention.

Claims

1. the central air conditioner system that can control cooling, it is characterized in that, comprise: refrigeration unit and refrigerating water sets, described refrigerating water sets comprises for supplying water and vertical pipeline, the horizontal pipe of backwater, and water circulating pump, described horizontal pipe is connected with many groups fan coil by valve, for adopting automatically controlled butterfly valve to connect between the vertical pipeline of backwater and horizontal pipe.

2. the central air conditioner system of controlling cooling according to claim 1, is characterized in that: for adopting automatically controlled butterfly valve to be connected between the horizontal pipe of backwater and the water return pipeline of fan coil.