CN202327621U - Energy-saving drain valve - Google Patents
Energy-saving drain valve Download PDFInfo
- Publication number
- CN202327621U CN202327621U CN2011204413700U CN201120441370U CN202327621U CN 202327621 U CN202327621 U CN 202327621U CN 2011204413700 U CN2011204413700 U CN 2011204413700U CN 201120441370 U CN201120441370 U CN 201120441370U CN 202327621 U CN202327621 U CN 202327621U
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- energy
- drain valve
- spool
- zone
- valve body
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Abstract
The utility model provides an energy-saving drain valve. The energy-saving drain valve comprises a valve body (1) and a valve core (2), wherein the valve core (2) is provided with an axial hole passage; the valve body (1) is sequentially provided with a valve core installation zone (3), a high-temperature condensate water evaporating zone (4), a condensate water gathering zone (5) and a low-pressure draining zone (6) from an assembling end to a water outlet end, and the hole diameter of the condensate water gathering zone (5) is less than that of the high-temperature condensate water evaporating zone (4) and that of the low-pressure draining zone (6). Since the inner part of the energy-saving drain valve is free from relatively-movable components, the service life is up to 8-10 years. Meanwhile, the energy-saving drain valve has the advantages of reliability in work, convenience for manufacturing, and reduced maintenance cost and construction cost due to no need of maintenance; and since high-temperature steam is reserved in a primary pipeline and a heat exchanger because of the separation of high-temperature condensate water in a work process of the energy-saving drain valve, the leakage of the steam can be effectively controlled, and 10%-20% of steam can be saved.
Description
Affiliated technical field
The utility model relates to a kind of drain valve that is used for steam pipework, steam heat-exchanger, especially a kind of energy-conservation drain valve.
Background technique
At present, existing drain valve has float-ball type, falls hanging bucket type, hot power.Above drain valve all is to adopt machinery or liquid mechanics principle, and its work precondition must have movable part, and these parts are at frequent movement; HTHP under the steam corrosion, certainly will cause the parts decrease of fatigue strength; Wearing and tearing increase, and fault is many, and the life-span is short.Simultaneously, have now in the drain valve owing to having movable parts, in the production and processing more complicated.In addition, existing drain valve is also discharged high-temperature steam when getting rid of water of condensation together, causes the loss of energy.
The model utility content
In order to solve existing drain valve; Working life is short, poor work stability, and energy loss is many; Make problems such as complicacy; The utility model utilizes steam and condensed water different because of existing density difference to cause both to pass through the speed in hole, and the principle of high-temperature condensation water double evaporation-cooling in the high-temperature low-pressure environment, has designed a kind of energy-conservation drain valve.
The energy-conservation drain valve that the utility model provided comprises valve body and spool; Said spool is provided with axial duct; Said valve body holds the waterexit end to be disposed with spool installing zone, high-temperature condensation water evaporation zone from assembling; Condensed water accumulation regions and low pressure discharge region, the aperture of said condensed water accumulation regions is less than the aperture of said high-temperature condensation water evaporation zone and the aperture of said low pressure discharge region.
Preferably, the aperture in the duct of said spool is 5 μ m-8mm.
Preferably, be provided with filter screen in the outer end of said spool.
Preferably, said spool is removably mounted in the said spool installing zone, and the aperture of said spool installing zone and the external diameter of said spool are complementary.
Preferably, the assembling end of said valve body has flanged connecting structure.
Preferably, the assembling end of said valve body has screw connection structure.
The energy-conservation drain valve working principle that the utility model provides is:
Moving the starting stage, the temperature in pipeline and the heat exchanger is lower, and steam is less, and the temperature of condensed water is low to be the cold conditions condensed water, and steam and the cold conditions condensed water in pipeline and the heat exchanger can be discharged through energy-conservation drain valve fully at this moment.Along with the prolongation of operating time, the temperature in pipeline and the heat exchanger raises, and steam flow increases, and the condensate temperature that condense this moment is higher, is high-temperature condensation water, and energy-conservation drain valve has got into the high-temperature condensation water discharge phase.This stage because condensed water is different with vapor density, causes condensed water to be discharged through the duct of spool earlier, and accumulates in the valve body, and when condensed water reaches certain volume, condensed water will stop up the condensed water accumulation regions of valve body, thereby hinder the discharge of steam.High-temperature steam increases in condensed water gathers certain volume and pipeline and heat exchanger; Pressure increases, and after reaching certain value, high-temperature condensation water is discharged through valve body; At this moment the unexpected reduction of the pressure of high-temperature condensation water evaporation zone; Form the environment of high-temperature low-pressure, the high-temperature condensation water double evaporation-cooling forms flash steam, forms certain backpressure; Thereby make the condensed water velocity of discharge slack-off, thereby reach the equinoctial point (being to have the part high-temperature condensation water to form water seal under the standard load in the weep hole all the time) under the proper functioning load.Energy-conservation drain valve gets into normal working.
Working principle according to energy-conservation drain valve can know that the aperture in spool duct is relevant with temperature, vapor pressure and water displacement in pipeline and the heat exchanger, and according to the working state of pipeline and heat exchanger, the pore diameter range in spool duct is 5 μ m-8mm usually.
In addition, the size of valve body is remained unchanged, the user can select the spool in different apertures according to different needs.
Because the aperture in spool duct is less, after foreign material get into the duct, easy to clean not.So get in the duct of spool in the process of energy-conservation drain valve work by foreign material, in the outer end of spool filter screen is set, to filter the foreign material in the steam in order to prevent.
The spool of the energy-conservation drain valve that the utility model provides is installed in the valve body the inside; Form a unified integral body; Do not have relative movable part, cause parts decrease of fatigue strength, fault is many, the life-span lacks problem thereby overcome movable part frequent movement in original drain valve and high temperature and high pressure steam corrosion.The utility model provides energy-conservation drain valve reaches 8-10 working life.Reliable operation, easy to make, the Maintenance free maintenance has reduced the maintenance construction cost.Because high-temperature steam is intercepted by high-temperature condensation water in the drain valve working procedure, is retained in former pipeline and the heat exchanger, can effectively control the leakage of steam.In identical operating conditions, energy-conservation drain valve is compared with existing drain valve, can practice thrift the 10%-20% steam flow, thereby reaches purpose of energy saving.In addition, the user can the different needs of root selects the spool in different apertures, and is convenient, fast during use.
Description of drawings
The initial start stage view of the energy-conservation drain valve that Fig. 1 provides for the utility model;
The work starting stage working state schematic representation of the energy-conservation drain valve that Fig. 2 provides for the utility model;
The working state schematic representation of the normal work stage of the energy-conservation drain valve that Fig. 3 provides for the utility model.
Among the figure: 1-valve body, 2-spool, 3-spool installing zone, 4-high-temperature condensation water evaporation zone, 5-condensed water accumulation regions, 6-low pressure discharge region.
Embodiment
Be described in detail according to the embodiment of accompanying drawing below the energy-conservation drain valve of the utility model.
Like Fig. 1, the energy-conservation drain valve that the utility model provided comprises valve body 1 and spool 2; Said spool 2 is provided with axial duct; Said valve body 1 holds the waterexit end to be disposed with spool installing zone 3, high-temperature condensation water evaporation zone 4 from assembling; Condensed water accumulation regions 5 and low pressure discharge region 6, the aperture of said condensed water accumulation regions 5 is less than the aperture of said high-temperature condensation water evaporation zone 4 and the aperture of said low pressure discharge region 6.Said spool 2 is removably mounted in the said spool installing zone 3, and the external diameter of the aperture of said spool installing zone 3 and said spool 2 is complementary.Valve body 1 can or be threaded through flange with equipment such as pipeline and heat exchangers.
Fig. 1 has represented the working procedure of this energy-conservation drain valve to Fig. 3; Begin from initial start stage shown in Figure 1, along with the prolongation of operating time, the temperature in pipeline and the heat exchanger raises; Steam flow increases; The condensate temperature that condense this moment is higher, is high-temperature condensation water, and energy-conservation drain valve has got into the high-temperature condensation water discharge phase.In this stage,, cause condensed water to be discharged through the duct of spool 2 earlier because condensed water is different with vapor density; And accumulate in the valve body 1 (as shown in Figure 2); When condensed water reaches certain volume, condensed water will stop up the condensed water accumulation regions 5 of valve body 1, thereby hinder the discharge of steam.High-temperature steam increases in condensed water gathers certain volume and pipeline and heat exchanger; Pressure increases, and after reaching certain value, high-temperature condensation water is discharged through valve body 1; At this moment the unexpected reduction of the pressure of high-temperature condensation water evaporation zone 4; Form the environment of high-temperature low-pressure, the high-temperature condensation water double evaporation-cooling forms flash steam, forms certain backpressure; Thereby make the condensed water velocity of discharge slack-off, thereby reach the equinoctial point (being to have the part high-temperature condensation water to form water seal under the standard load in the weep hole all the time) under the proper functioning load.Energy-conservation drain valve gets into normal working (as shown in Figure 3).
The valve body of energy-conservation drain valve and spool can adopt materials such as alloy steel or stainless steel.Alloyed steel and stainless steel material have mechanical property preferably, and through after the rational heat treatment, its performance can also further improve, and guarantees the working life of energy-saving hot water valve.
Working principle according to energy-conservation drain valve can know that the aperture in spool duct is relevant with temperature, vapor pressure and water displacement in pipeline and the heat exchanger, and according to the working state of pipeline and heat exchanger, the pore diameter range in spool duct is 5 μ m-8mm usually.
In addition, from angle convenient, that practice thrift, the size of valve body is remained unchanged, the user can select the spool in different apertures according to different needs.
Above embodiment is the preferred implementation of the utility model, and simple replacement that all are done on the basis of the utility model or improvement all belong to the protection domain of the utility model.
Claims (6)
1. an energy-conservation drain valve is characterized in that: comprise valve body (1) and spool (2); Said spool (2) is provided with axial duct; Said valve body (1) holds the waterexit end to be disposed with spool installing zone (3), high-temperature condensation water evaporation zone (4) from assembling; Condensed water accumulation regions (5) and low pressure discharge region (6), the aperture of said condensed water accumulation regions (5) is less than the aperture of said high-temperature condensation water evaporation zone (4) and the aperture of said low pressure discharge region (6).
2. energy-conservation drain valve according to claim 1 is characterized in that: the aperture in the duct of said spool (2) is 5 μ m-8mm.
3. energy-conservation drain valve according to claim 1 is characterized in that: the outer end at said spool (2) is provided with filter screen.
4. energy-conservation drain valve according to claim 1 is characterized in that: said spool (2) is removably mounted in the said spool installing zone (3), and the external diameter of the aperture of said spool installing zone (3) and said spool (2) is complementary.
5. energy-conservation drain valve according to claim 1 is characterized in that: the assembling end of said valve body (1) has flanged connecting structure.
6. energy-conservation drain valve according to claim 1 is characterized in that: the assembling end of said valve body (1) has screw connection structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204413700U CN202327621U (en) | 2011-11-09 | 2011-11-09 | Energy-saving drain valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204413700U CN202327621U (en) | 2011-11-09 | 2011-11-09 | Energy-saving drain valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202327621U true CN202327621U (en) | 2012-07-11 |
Family
ID=46439602
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204413700U Expired - Fee Related CN202327621U (en) | 2011-11-09 | 2011-11-09 | Energy-saving drain valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202327621U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109300564A (en) * | 2018-09-20 | 2019-02-01 | 中国辐射防护研究院 | A kind of device and method of the blocking of simulation steam and corrosion filter |
-
2011
- 2011-11-09 CN CN2011204413700U patent/CN202327621U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109300564A (en) * | 2018-09-20 | 2019-02-01 | 中国辐射防护研究院 | A kind of device and method of the blocking of simulation steam and corrosion filter |
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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 |
Granted publication date: 20120711 Termination date: 20141109 |
|
| EXPY | Termination of patent right or utility model |