CN204717819U - A kind of level pressure expansion system of Large Copacity high-temperature-hot-water - Google Patents
A kind of level pressure expansion system of Large Copacity high-temperature-hot-water Download PDFInfo
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- CN204717819U CN204717819U CN201520459631.XU CN201520459631U CN204717819U CN 204717819 U CN204717819 U CN 204717819U CN 201520459631 U CN201520459631 U CN 201520459631U CN 204717819 U CN204717819 U CN 204717819U
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Abstract
The utility model provides a kind of level pressure expansion system of Large Copacity high-temperature-hot-water, for hot water cyclesystem, comprise the expansion drum of enclosed, the upside of described expansion drum is provided with water seal, described expansion drum is also connected with the steam generator for making to produce in described expansion drum steam, the water pipe being provided with pressure relief pipe between described expansion drum and described hot water cyclesystem and being in parallel with described pressure relief pipe, described pressure relief pipe is provided with relief valve, described water pipe is provided with frequency conversion constant pressure supply water pump.This level pressure expansion system, can prevent corrosion expansion drum and hot water cyclesystem.
Description
Technical field
The utility model relates to a kind of level pressure expansion system, specifically, relates to a kind of level pressure expansion system of Large Copacity high-temperature-hot-water.
Background technology
Well-known, the jumbo high-temperature-hot-water circulatory system is generally applied in water heat-storing heating system.Be different from common hot water cyclesystem, the regenerator temperature of the jumbo high-temperature-hot-water circulatory system is greater than 100 degree, and operating temperature is generally at 110-150 degree, and operating pressure is at 0.2-0.7MPa.Owing to being provided with jumbo accumulation of heat water pot in system, hot water cyclesystem water capacity is generally at 500-2000m
3, so that the additional water of hot-water heating system is very large, and additional water can reach 20-100m
3.It is less that enclosed level pressure expansion drum due to bellows can hold additional water, and non-refractory, be not suitable for jumbo high-temperature bearing hot-water heating system.Mostly adopt now open tank as expansion gear, but when high-temperature expansion water a large amount of in hot water cyclesystem drains into open tank, indirect steam discharge can be produced, cause waste and potential safety hazard, in addition due to the hot water and air contact in open tank, water tank can be corroded, when hot water cyclesystem pressure reduces, the swelling water contacted with air is supplemented in hot-water heating system by small pump, also can corrode whole hot-water heating system.
Utility model content
The technical problems to be solved in the utility model is, for the deficiency that prior art exists, provides a kind of level pressure expansion system of Large Copacity high-pressure water heating, and it can prevent corrosion.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of level pressure expansion system of Large Copacity high-temperature-hot-water, for hot water cyclesystem, level pressure expansion system comprises the expansion drum of enclosed, the upside of described expansion drum is provided with water seal, described expansion drum is also connected with the steam generator for making to produce in described expansion drum steam, the water pipe being provided with pressure relief pipe between described expansion drum and described hot water cyclesystem and being in parallel with described pressure relief pipe, described pressure relief pipe is provided with relief valve, described water pipe is provided with frequency conversion constant pressure supply water pump.
Preferably, described expansion drum is expansion of metal tank.
Preferably, liquid level gauge is provided with in described expansion drum.
Preferably, described steam generator is electric heating steam generator.
Preferably, the quantity of described frequency conversion constant pressure supply water pump is two, the parallel connection of pumps of two described frequency conversion constant pressure supply waters.
Preferably, described water pipe is also provided with the first pressure sensor of the pressure for measuring described hot water cyclesystem.
Preferably, described expansion drum is provided with the second pressure sensor for measuring the steam pressure in described expansion drum.
Implement the level pressure expansion system of a kind of Large Copacity high-temperature-hot-water of the present utility model, there is following beneficial effect: adopt expansion drum as the expansion gear of hot water cyclesystem, with a water seal arrangement, expansion drum and outside air are separated, in order to prevent in expansion drum air to the corrosion of water, a steam generator is set outside expansion drum, water in expansion drum is extracted out and is heated to low-pressure steam, be connected to the headroom of expansion drum again, air is discharged, make to be full of steam above the space of expansion drum, air corrosion swelling water tank and whole hot water cyclesystem can be prevented, make the operation of hot water cyclesystem long-term safety under the situation of airtight isolated air.The pressure of hot water cyclesystem is recorded by the first pressure sensor, when the pressure of hot water cyclesystem is lower than system minimum operating pressure, by frequency conversion constant pressure supply water pump, the water in expansion drum is supplemented in whole water system again, makes hot water cyclesystem operating pressure keep stable.This expansion system may be used for jumbo pressurization of heat-supply system, moisturizing, expansion, and applicability is strong, and handling safety is reliable, can ensure that heating system is run for a long time safely and effectively.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail, in accompanying drawing:
Fig. 1 is the structural representation of the level pressure expansion system of a kind of Large Copacity high-temperature-hot-water of the present utility model.
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with embodiment and accompanying drawing, the utility model is further described.
The utility model discloses a kind of level pressure expansion system of Large Copacity high-temperature-hot-water, for controlling the pressure of hot water cyclesystem.
With reference to Fig. 1, the level pressure expansion system of this Large Copacity high-temperature-hot-water of the present utility model, for hot water cyclesystem, this level pressure expansion system comprises the expansion drum 1 of enclosed, and further, this expansion drum 1 is preferably expansion of metal tank.The upside of expansion drum 1 is provided with water seal 4, and expansion drum 1 is also connected with the steam generator 5 for making to produce in expansion drum 1 steam, steam generator 5 is preferably electric heating steam generator.The water pipe being provided with pressure relief pipe between expansion drum 1 and hot water cyclesystem and being in parallel with pressure relief pipe, pressure relief pipe is provided with relief valve 3, water pipe is provided with frequency conversion constant pressure supply water pump 2.
The volume of expansion drum 1 is 30 ~ 150m
3, design pressure is 0.1MPa, and operating pressure is about 0.05MPa, and Main Function is the expansion hot water of storage from hot water cyclesystem.Hot water cyclesystem raises due to temperature, volumetric expansion, pressure increase, and after exceeding the maximum working pressure (MWP) of its system, hot water is by relief valve 3 pressure release in expansion drum 1, and after the pressure recover of hot water cyclesystem is normal, relief valve 3 cuts out.For ease of knowing the liquid level in expansion drum 1, in expansion drum 1, being provided with liquid level gauge 8, like this, the liquid level of expansion drum 1 can being observed in time.
Water seal 4 can be selected of the prior art all multi-form, and the effect of water seal 4 is separated expansion of metal tank 1 and outside air, and play the effect to swelling water tank inside level pressure.
The effect of steam generator 5 is, part water in expansion drum 1 is extracted out and is heated to low-pressure steam, be connected to the headroom of expansion drum, air is discharged, makes the upper space in expansion drum be full of steam, and the air dissolved in expansion drum hot water can be removed, prevent air corrosion expansion drum and whole hot water cyclesystem, ensure the operation of hot water cyclesystem long-term safety under the situation of airtight isolated air, when in expansion drum, pressure reaches maximum working pressure, steam generator 5 quits work.
The effect of frequency conversion constant pressure supply water pump 2 is when hot water cyclesystem Pressure Drop is to minimum operating pressure, frequency conversion constant pressure supply water pump 2 starts, water in expansion drum 1 is mended in hot water cyclesystem, by the moisturizing of frequency conversion constant pressure supply water pump 2, hot water cyclesystem pressure is made to maintain service pressure all the time, as reached maximum working pressure (MWP) to system, then small pump quits work.As shown in FIG., in this utility model, the quantity of frequency conversion constant pressure supply water pump 2 is two, the parallel connection of pumps of two frequency conversion constant pressure supply waters.
In the utility model, in order to obtain the pressure condition of hot water cyclesystem, water pipe is also provided with the first pressure sensor 6 of the pressure for measuring hot water cyclesystem.The Main Function of this first pressure sensor 6 controls frequency conversion constant pressure supply water pump 2.When hot water cyclesystem Pressure Drop sends signal to during minimum operating pressure, start frequency conversion constant pressure supply water pump 2; And signal is sent when circulation pressure is increased to maximum working pressure (MWP), stop water pump.
In addition, expansion drum 1 is provided with the second pressure sensor 7 for measuring the steam pressure in expansion drum 1.The Main Function of this second pressure sensor 7 controls steam generator 5.When steam pressure is lower than 0.03bar in expansion drum 1, open steam generator 5; When expansion drum 1 steam pressure reaches 0.05bar, then stop steam generator 5.
The operation principle of this expansion system of the present utility model: when the temperature in hot water cyclesystem raises, when pressure reaches maximum working pressure (MWP), hot water is entered in expansion drum 1 by relief valve 3, thus ensures that hot water cyclesystem pressure can not superpressure, makes hot water cyclesystem pressure remain stable; When the Pressure Drop in hot water cyclesystem is to minimum operating pressure, the hot water in expansion drum 1 is by frequency conversion constant pressure supply water pump 2 moisturizing stablizing with maintaining heat water circulation system pressure.In this cyclic process, increase steam generator 5 and be used for protecting whole hot water cyclesystem and expansion drum 1, make to be full of steam above expansion drum 1, avoid air to the corrosion of e-quipment and pipe, the service life of increase expansion drum 1, hot water cyclesystem and security.When the first pressure sensor 6 detects that Pressure Drop in hot water cyclesystem is to minimum operating pressure, open frequency conversion constant pressure supply water pump 2 and get in hot water cyclesystem by the hot water in expansion drum 1, in hot water cyclesystem, pressure raises, and reaches poised state.When the second pressure sensor 7 detects that the steam pressure of top in expansion drum 1 is down to minimum operating pressure, open steam generator 5 pairs of expansion drums 1 and supplement steam, ensure that in expansion drum 1, steam pressure maintains in constant scope all the time.
More than show and describe general principle of the present utility model and principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; what describe in above-described embodiment and description just illustrates principle of the present utility model; under the prerequisite not departing from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (7)
1. the level pressure expansion system of a Large Copacity high-temperature-hot-water, for hot water cyclesystem, it is characterized in that, comprise the expansion drum of enclosed, the upside of described expansion drum is provided with water seal, described expansion drum is also connected with the steam generator for making to produce in described expansion drum steam, the water pipe being provided with pressure relief pipe between described expansion drum and described hot water cyclesystem and being in parallel with described pressure relief pipe, described pressure relief pipe is provided with relief valve, described water pipe is provided with frequency conversion constant pressure supply water pump.
2. the level pressure expansion system of Large Copacity high-temperature-hot-water according to claim 1, is characterized in that, described expansion drum is expansion of metal tank.
3. the level pressure expansion system of Large Copacity high-temperature-hot-water according to claim 2, is characterized in that, is provided with liquid level gauge in described expansion drum.
4. the level pressure expansion system of Large Copacity high-temperature-hot-water according to claim 1, is characterized in that, described steam generator is electric heating steam generator.
5. the level pressure expansion system of Large Copacity high-temperature-hot-water according to claim 1, is characterized in that, the quantity of described frequency conversion constant pressure supply water pump is two, the parallel connection of pumps of two described frequency conversion constant pressure supply waters.
6. the level pressure expansion system of Large Copacity high-temperature-hot-water according to claim 5, is characterized in that, described water pipe is also provided with the first pressure sensor of the pressure for measuring described hot water cyclesystem.
7. the level pressure expansion system of Large Copacity high-temperature-hot-water according to claim 1, is characterized in that, described expansion drum is provided with the second pressure sensor for measuring the steam pressure in described expansion drum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520459631.XU CN204717819U (en) | 2015-06-30 | 2015-06-30 | A kind of level pressure expansion system of Large Copacity high-temperature-hot-water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520459631.XU CN204717819U (en) | 2015-06-30 | 2015-06-30 | A kind of level pressure expansion system of Large Copacity high-temperature-hot-water |
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| CN204717819U true CN204717819U (en) | 2015-10-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520459631.XU Expired - Fee Related CN204717819U (en) | 2015-06-30 | 2015-06-30 | A kind of level pressure expansion system of Large Copacity high-temperature-hot-water |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105650875A (en) * | 2016-03-22 | 2016-06-08 | 黄永敏 | Capacity increase device for water drainage pipeline of high-temperature heat pump |
| CN106931486A (en) * | 2017-03-14 | 2017-07-07 | 烟台冰轮股份有限公司 | A kind of high effective heat-storage takes hot water-storing device |
-
2015
- 2015-06-30 CN CN201520459631.XU patent/CN204717819U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105650875A (en) * | 2016-03-22 | 2016-06-08 | 黄永敏 | Capacity increase device for water drainage pipeline of high-temperature heat pump |
| CN106931486A (en) * | 2017-03-14 | 2017-07-07 | 烟台冰轮股份有限公司 | A kind of high effective heat-storage takes hot water-storing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151021 Termination date: 20190630 |