CN201103716Y - Electric three-way valve for inlet of high pressure heater - Google Patents
Electric three-way valve for inlet of high pressure heater Download PDFInfo
- Publication number
- CN201103716Y CN201103716Y CNU2007200809596U CN200720080959U CN201103716Y CN 201103716 Y CN201103716 Y CN 201103716Y CN U2007200809596 U CNU2007200809596 U CN U2007200809596U CN 200720080959 U CN200720080959 U CN 200720080959U CN 201103716 Y CN201103716 Y CN 201103716Y
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- valve
- flap
- pressure heater
- electric
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- Expired - Fee Related
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Abstract
An electric three-way valve at an inlet of a high-pressure heater is disclosed and is related to an electric three-way valve arranged at an inlet end of a high-pressure heater of a boiler for protecting the high-pressure heater, which belongs to the technical field of valve design and manufacturing. The structure comprises a three-way valve body with a valve cover, upper and lower valve bases inside the valve body, a valve flap arranged between the upper valve base and the lower valve base, and a valve rod which is connected with the valve flap and extends out the valve body by penetrating the valve cover. The utility model is characterized in that the upper valve base is welded into a whole with the valve body; the side of the valve body corresponding to the valve flap is provided with an installation hole; a side valve cover is arranged at the installation hole. The three-way valve has the advantages of reducing the leakage points of a sealing ring of the upper valve base, thus leading to more reliable utilization of the valve; besides, the assembly and disassembly of the valve flap are more convenient.
Description
Technical field
The utility model relates to a kind of electric T-shaped valve of protecting the high-pressure heater of boiler.Belong to valve design, manufacturing technology field.
Background technique
For guaranteeing the safe handling of Boiler High Pressure heater, to be equipped with the supporting use of electric gate valve of an electric T-shaped valve (being commonly referred to " high-pressure heater import electric T-shaped valve ") and high-pressure heater outlet end usually at the entrance point of high-pressure heater.After the high-pressure heater water filling, make valve opening by the differential pressure active force in the valve rod cross section of the electric T-shaped valve that acts on high-pressure heater inlet and the lifting force of electric driving device, close the upper valve base sealing surface, bypass is cut off, medium is walked main road, through high-pressure heater, the outlet electric gate valve is to boiler.When high-pressure heater has an accident and when water level being surpassed allow water level, the electrical signal that is provided by electric contact point fluviograph or equalizing reservoir makes electric driving device action, valve is closed lower valve base rapidly, and medium by-passing, high-pressure heater safety off-the-line are opened in the upper valve base sealing.Existing high-pressure heater import electric T-shaped valve mainly by the three way valve that has a valve gap, be arranged on upper valve base, lower valve base in the valve body, be arranged on flap between the upper and lower valve seat, be connected in flap and pass valve gap stretch out the valve rod outside valve body and be arranged on valve body and upper valve base between seal ring constitute.The shortcoming of this valve is that the sealing at upper valve base place seals by seal ring.Seal ring reaches the effect of alternating stress owing to washed away by medium, and the life-span is very short, often has leakage phenomenon.In addition, during this valve replacement flap must with valve rod, valve gap, etc. internals all disassemble from valve body, time-consuming, extremely inconvenient.
The model utility content
The purpose of this utility model is the above-mentioned shortcoming that overcomes prior art, and a kind of good airproof performance, simple load and unload high-pressure heater import electric T-shaped valve are provided.
The formation that realizes the high-pressure heater import electric T-shaped valve of the utility model purpose comprises the three way valve that has a valve gap, is arranged on upper valve base, lower valve base in the valve body, be arranged on flap between the upper and lower valve seat, be connected in flap and pass valve gap and stretch out valve rod outside valve body, it is characterized in that described upper valve base and valve body are welded as a whole, the place, side with respect to flap at valve body has a mounting hole, is provided with side valve lid on this mounting hole.
The same with existing electric T-shaped valve, this valve has an import, two outlets (being main road and bypass).Bypass passageways is turn-offed in sealing surface and upper valve base sealing surface applying sealing on the flap during proper functioning.Medium is come in from import, goes out from main road, removes boiler through high-pressure heater.The boiler nominal situation all is that this mode is moved.When high-pressure heater was out of order, Electric actuator received that signal begins action, makes the flap motion, and flap lower sealing surface and lower valve base sealing surface are fitted, and cut off the main road passage, and medium removes boiler from bypass passageways.Can the upper valve base place seal is this valve key.This valve adopts upper valve base and valve body weldering to be the mode of structure of one, has stopped the possibility of leaking.Open the side valve lid and can finish the replacing of flap by the mounting hole at place, valve body side.
Compared with the aforementioned existing similar products, the utility model has the advantages that the leakage point that has reduced upper valve base seal ring place, it is more reliable that valve is used.The dress of flap, tear open more convenient.
Content of the present utility model further illustrates with the following Examples, but content of the present utility model is not limited only to content related among the embodiment.
Description of drawings
Fig. 1 is a structural representation of the present utility model
Fig. 2 is the A-A view of Fig. 1
Embodiment
As shown in Figure 1, 2, the formation of this high-pressure heater import electric T-shaped valve comprises the three way valve 2 that has a valve gap 1, is arranged on upper valve base 3, lower valve base 4 in the valve body 2, be arranged on flap 5 between the upper and lower valve seat, be connected in flap and pass valve gap and stretch out valve rod 6 outside valve body, described upper valve base 3 is welded as a whole with valve body 2, the place, side with respect to flap at valve body has a mounting hole 7, is provided with side valve lid 8 on this mounting hole.9 is bracket assembly among the figure, and 10 are the selfsealings circle.Be the appurtenances of existing electric T-shaped valve.Side valve lid 8 can the screw thread cock be in mounting hole 7 like that as shown in the figure, and usefulness side selfsealings circle 11 seals, pressure ring 12 is spacing.Also can directly be sealed on the aperture.
Claims (1)
1, high-pressure heater import electric T-shaped valve, comprise the three way valve that has a valve gap, be arranged on upper valve base, lower valve base in the valve body, be arranged on flap between the upper and lower valve seat, be connected in flap and pass valve gap and stretch out valve rod outside valve body, it is characterized in that described upper valve base and valve body are welded as a whole, the place, side with respect to flap at valve body has a mounting hole, is provided with side valve lid on this mounting hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200809596U CN201103716Y (en) | 2007-09-06 | 2007-09-06 | Electric three-way valve for inlet of high pressure heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200809596U CN201103716Y (en) | 2007-09-06 | 2007-09-06 | Electric three-way valve for inlet of high pressure heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201103716Y true CN201103716Y (en) | 2008-08-20 |
Family
ID=39950742
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200809596U Expired - Fee Related CN201103716Y (en) | 2007-09-06 | 2007-09-06 | Electric three-way valve for inlet of high pressure heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201103716Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104565433A (en) * | 2014-12-22 | 2015-04-29 | 浙江春晖智能控制股份有限公司 | Integrated one-inlet-and-two-outlet waterway switching module and waterway module |
| CN105496210A (en) * | 2014-09-30 | 2016-04-20 | 佛山市顺德区美的饮水机制造有限公司 | Faucet and water dispenser with same |
-
2007
- 2007-09-06 CN CNU2007200809596U patent/CN201103716Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105496210A (en) * | 2014-09-30 | 2016-04-20 | 佛山市顺德区美的饮水机制造有限公司 | Faucet and water dispenser with same |
| CN104565433A (en) * | 2014-12-22 | 2015-04-29 | 浙江春晖智能控制股份有限公司 | Integrated one-inlet-and-two-outlet waterway switching module and waterway module |
| CN104565433B (en) * | 2014-12-22 | 2017-02-22 | 浙江春晖智能控制股份有限公司 | Integrated one-inlet-and-two-outlet waterway switching module and waterway module |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Chengdu Chengfeng Valve Co., Ltd. Assignor: Sichuan Dongfang Chengfeng Electric Power Equipment Co., Ltd. Contract fulfillment period: 2008.12.2 to 2017.9.6 Contract record no.: 2009510000106 Denomination of utility model: Electric three-way valve for inlet of high pressure heater Granted publication date: 20080820 License type: Exclusive license Record date: 20091015 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2008.12.2 TO 2017.9.6; CHANGE OF CONTRACT Name of requester: CHENGDU CHENFENG VALVES CO., LTD. Effective date: 20091015 |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080820 Termination date: 20120906 |