CN2518009Y

CN2518009Y - Pressure separator

Info

Publication number: CN2518009Y
Application number: CN 01272275
Authority: CN
Inventors: 张立华; 金武燮; 权太明
Original assignee: SHENYANG JINXIN COLD AND WARM ENQUIPMENT MANUFACTURE AND INSTALLATION CO Ltd
Current assignee: SHENYANG JINXIN COLD AND WARM ENQUIPMENT MANUFACTURE AND INSTALLATION CO Ltd
Priority date: 2001-12-20
Filing date: 2001-12-20
Publication date: 2002-10-23
Anticipated expiration: 2011-12-20

Abstract

The utility model relates to a pressure separator used for semi-enclosed district and direct connecting heating system. The pressure separator solves the technical problems that pressure relief is not performed to the heating back water of a high layer; thereby the heat radiator in a low layer is not protected in a system directly connected to same hot net pipeline in an indoor heat radiator of a high rise building. The utility model has the technical key points that the utility model is cylindrical, an air pipe at the center of circle are divided into two sections, a water sealing box is added in the middle, the upper part of the water sealing box is provided with holes, the upper half part of the air pipe is inserted into the water sealing box, and the lower half part thereof is fixed on a separating plate, and is communicated with the water outlet pipe of the pressure separator; a thread channel is in the water outlet pipe of the pressure separator, and is wound on the air pipe, a water supplement pipe communicates a water inlet pipe with the air pipe, and an air exhaust pipe communicates the air exhaust opening of the air exhauster in the system with the water sealing box. The utility model is used in the semi-enclosed district and direct connecting heating system.

Description

Pressure separator

[technical field]

The utility model relates to skyscraper or build the interior radiator of the bigger groups of building of Terrain Elevation difference (radiator) in, be directly connected in employed in the system of same heat-net-pipeline, be used for device with the backwater pressure release.

[background technology]

Following two kinds of situations are arranged in the secondary network system of district heating, and a kind of is that building all is no more than 8 layers in the zone, but the difference in height of landform is big, and the radiator of building the lower building in will bear very high pressure; Another kind of difference in height for landform in the heat supply zone is very little, but depth of building differs greatly, and the bottom heat dissipation equipment will bear very high pressure.What China extensively adopted at present is that bearing capacity is the radiator of 0.4MPa, simply, directly is connected in the system of same heat-net-pipeline, will cause bottom radiator superpressure to be destroyed, and therefore selects for use reasonably just to have become a major issue with the outer net ways of connecting.

In the Heating Design of skyscraper, the following dual mode of many at present employings, a kind of is to adopt the isolated closed system (hereinafter to be referred as closed system) of heat exchanger, another kind is to adopt two water tank open systems (to go into to be called for short open system).Though closed system has solved the influence of hydraulic regime each other, there is big defective in the heating power operating mode, mainly is because secondary network operation temperature is lower.At present, the design parameter of China's heating boiler is 95/70 ℃, the actual motion supply water temperature is seldom above 70 ℃, the secondary net supply water temperature of central heating is at 80 ℃ to 60 ℃, particularly at the heating initial stage, supply water temperature may be lower than 50 ℃, and temperature will further reduce after heat exchange, and obviously such system is irrational.In addition, high-rise load is all less generally speaking, and to establish the heat exchange station investment bigger for it separately, also increased the complexity of managing; And open system is to adopt more a kind of form, but also there is obvious defects, because the pressure of systemic circulation provides by the difference in height between two water tanks fully, two water tanks will take bigger space, improved construction costs, and very moist between water tank, often there is water vapour from water tank, to overflow.Open system is to realize what partition system was cut off by the partly-filled pipe-flow of return riser, because the water yield is lacked control accurately, very easily causes the fluctuation of standpipe internal pressure, and forms water plug and vent plug.Simultaneously, because the parameter of booster is often higher, make high district flow excessive, directly the heating effect in the low district of influence.Under the partly-filled pipe-flow state, water is done adherent flowing, and tube hub is an air column, and the water that flows downward will make air column be negative pressure, and air can't upwards be discharged by standpipe, forms air-water mixture at the bottom of standpipe water and air, thereby will dissolve in a large amount of air in the water.

[utility model content]

The technical problems to be solved in the utility model is: at skyscraper or build the interior radiator (radiator) of the bigger groups of building of Terrain Elevation difference in; be directly connected in the system of same heat-net-pipeline; the heating water return of high level should be carried out pressure release, with protection low layer radiator.The purpose of this utility model be to provide a kind of can be with the Pressure separator of backwater pressure release, it is applied to semi-enclosed subregion direct connection heating system, overcome closed system and open system deficiency, realize that radiator is connected with the direct of outdoor heat supply network.

The purpose of this utility model is achieved in that it comprises low district heating system (boiler, pumps for hot water supply net and low district architecture indoor radiator are promptly arranged) on the aqueduct of this system, He Gao district heating system, the soaker that comprises (by the water (flow) direction narration) booster, high district architecture indoor radiator, the Pressure separator that is communicated with atmosphere and band exhaust outlet on the aqueduct of height district heating system, high district heating system is in parallel with low district building radiator.Pressure separator is a round barrel shape, breather pipe at garden heart place is divided into two sections compositions, two sections centres add a water seal box, and water seal box top is porose, and the first half of breather pipe is inserted in the water seal box, the latter half of breather pipe is fixed on the dividing plate, and being communicated with the outlet pipe of Pressure separator, is screw thread channel in the outlet pipe of Pressure separator, and screw thread channel is on breather pipe, filling pipe is communicated with water inlet pipe with breather pipe, blast pipe is communicated with the exhaust outlet of the soaker in the system with the water seal box.

Operation principle of the present utility model is: after pumps for hot water supply net boosts the water supply of outdoor heat supply network, one the tunnel enters the radiator of low district building, another road enters the radiator of high district building through booster, after the building radiator heat release cooling of height district, become the heat supply network backwater and enter the Pressure separator that is installed in the return riser top, at this moment anhydrous in the water seal box, so the top and the bottom of breather pipe are communicated with, when Dang Gao district backwater flows into outlet pipe, the just pressure pressure release of Jiang Gao district backwater; The screw of Pressure separator outlet pipe makes backwater be adherent eddy flow, its flow velocity will be higher than 4～5 times of heat supply network velocity in pipes, therefore high district backwater is moving for the non-full pipe pressure free current in standpipe, thereby high district pressure of return water is separated with low district pressure of return water, when being intersected in outdoor return pipe, high district backwater is not exerted pressure to low district radiator.When the valve of opening on the blowdown pipe, the high district of part backwater injects in the water seal box, makes system keep airtight when operation; The opening on water seal box top guarantees the unimpeded of water seal overflow and tonifying Qi; Blast pipe is communicated with the exhaust outlet of the soaker in the system with the water seal box, when Dang Gao district backwater enters soaker, will be with some current as the moisturizing of water seal box, and the air of discharge is as the tonifying Qi of system; Filling pipe provides continuous moisturizing for water seal, guarantees the water level of water seal.

The semi-enclosed subregion direct connection heating system that the utility model is used has been compared following advantage with traditional heat exchanger closed system with two water tank open systems:

1, energy-efficient, guaranteed the heating effect that subregion is built effectively.Closed system is owing to the reduction of heating parameter after the heat exchange, and height is distinguished the heating effect decline of building; Open system is because the water tank heat loss is big, and also directly the influence height is distinguished the heating effect of building.

2, Pressure separator has guaranteed high district backwater adherent flowing in overflow pipe.The defective modes such as water plug of having avoided the open system overflow pipe to cause greatly reduce the fluctuation and the noise of overflow pipe internal pressure.

3, the voltage stabilizing soaker has guaranteed that the air in the system in time discharges.In open system, because molten

Air in the entry can't be discharged, and air enters in the low district heating system with backwater and forms vent plug, has a strong impact on the heating of low sound zone system.

4, the utility model investment reduces.Closed system must be provided with high district's heat exchange station and corresponding secondary net.Simultaneously, because system's supply and return water temperature reduces, radiator quantity increases; Open system must be provided with between water tank and pump house, and the cost of this dual mode all is much higher than the utility model.

[description of drawings]

Further specify the utility model below in conjunction with accompanying drawing.

Fig. 1 is the applied closed subregion direct connection heating system figure of the utility model.

Fig. 2 is a structural representation of the present utility model.

[specific embodiment]

Referring to Fig. 1, after pumps for hot water supply net 1 boosts the water supply of outdoor heat supply network, one the tunnel enters the radiator 8 of low district building, another road is through booster 2 and flow controller 3, enter the radiator 7 of high district building, after the building radiator heat release cooling of height district, become the heat supply network backwater and enter the Pressure separator 5 that is installed in the return riser top, referring to Fig. 2, Pressure separator is a round barrel shape, and the breather pipe at garden heart place is divided into two

sections

91,92, two sections centres add a water seal box 16, water seal box top is porose, and the epimere 91 of breather pipe is inserted in the water seal box, and the hypomere 92 of breather pipe is fixed on the dividing plate 17, and be communicated with the outlet pipe 10 of Pressure separator, in the outlet pipe of Pressure separator is screw thread channel 11, and screw thread channel is on breather pipe, and filling pipe 20 is communicated with water inlet pipe 12 with breather pipe epimere 91.Water supply becomes high district backwater after the booster pressurization enters the cooling of high district user radiator, enter Pressure separator by water inlet pipe 12, at this moment anhydrous in the water seal box, so the top and the bottom of breather pipe are communicated with, when Dang Gao district backwater flows into outlet pipe, the just pressure pressure release of Jiang Gao district backwater; The screw 11 of Pressure separator outlet pipe makes backwater be adherent eddy flow; When the valve of opening on the blowdown pipe 19, the high district of part backwater injects in the water seal box, makes system keep airtight when operation; The opening on water seal box top guarantees the unimpeded of water seal overflow and tonifying Qi; Blast pipe 6 is communicated with the exhaust outlet 13 of soaker 4 with water seal box 16, when Dang Gao district backwater enters exhaust, will be with some current as 16 moisturizings of water seal box, and the air of discharge is as the tonifying Qi of system; Filling pipe 20 provides continuous moisturizing for water seal, guarantees the water level of water seal, and refill flow is by valve 19 controls; Valve 18 is regulated the water yield that enters in the Pressure separator when trial run, play the emergency shutdown effect at accident condition.

Claims

1, a kind of Pressure separator that is used for semi-enclosed subregion direct connection heating system, it is characterized in that: it is round barrel shape, breather pipe at garden heart place is divided into two sections compositions, the centre adds a water seal box, water seal box top is porose, the first half of breather pipe is inserted in the water seal box, the latter half of breather pipe is fixed on the dividing plate, and be communicated with the outlet pipe of Pressure separator, in the outlet pipe of Pressure separator is screw thread channel, screw thread channel is on breather pipe, and filling pipe is communicated with water inlet pipe with breather pipe, and blast pipe is communicated with the exhaust outlet of the soaker in the system with the water seal box.