CN2168134Y - Opening-closing valve for atmospheric hot water boiler - Google Patents
Opening-closing valve for atmospheric hot water boiler Download PDFInfo
- Publication number
- CN2168134Y CN2168134Y CN 93223431 CN93223431U CN2168134Y CN 2168134 Y CN2168134 Y CN 2168134Y CN 93223431 CN93223431 CN 93223431 CN 93223431 U CN93223431 U CN 93223431U CN 2168134 Y CN2168134 Y CN 2168134Y
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- valve
- cylinder body
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- pressure
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- Expired - Fee Related
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Abstract
The utility model relates to an opening-closing valve for an atmospheric water heating boiler, which comprises a valve body, a pressure spring, a piston, a valve rod, and a valve core body. The utility model is characterized in that the utility model also comprises a cylinder body, a regulating screw rod, and a sealing plate; the valve core body opens the valve through water pressure and the function of the piston; as long as a circulation water pump in the system stops, the piston automatically closes backwater through the pressure spring so as to maintain the ordinary pressure of a boiler; the static pressure of the water can also be controlled through regulating the regulating screw rod. The utility model has the advantages of reliable and stable working and operation, simple structure, and convenient operation.
Description
The utility model relates to a kind of keying valve of normal-pressure hot-water boiler, exactly, is the automatic open and close valve that mechanical spring combines with hydraulic pressure opening.
Have 70% to be Heating Hot Water Boiler in the industrial boiler of northern China, its overwhelming majority is a bearing boiler, and the hidden danger of pressure-bearing blast is arranged, and therefore, requirement and the restriction that has been subjected to " rules " from safety used in its structure and manufacturing.The domestic in recent years part normal-pressure boiler that also occurred, but, the most manually operated valves that adopt of its control in heating system uses, cause the reliability instability, even Chinese patent disclosed " the hydraulic pressure stop valve that is used for normal-pressure hot-water boiler " (application number 92211697.0), also only improved operational reliability to a certain extent, on structural design, do not dealt with problems at all.
The purpose of this utility model is to provide a kind of keying valve at above-mentioned deficiency of the prior art, can fundamentally solve the difficult problem of operational reliability, and, also to reach simple in structure, practical purpose easy to use.
The purpose of this utility model realizes with following technological scheme: its main design is to be designed to the automatic open and close valve that mechanical spring combines with hydraulic pressure opening with opening and closing valve, it can be with the start-stop of circulating water pump, automatically cut-out system backwater and boiler gets in touch, and can highly regulate keying valve pressurization point according to heat supply, to keep operational reliability and stability.
Fig. 1 is the utility model structure diagram.
The utility model is described in further detail below in conjunction with drawings and Examples.
The utility model not only includes valve body 16, pressure spring 4, piston 1, valve rod 10, valve core 15, also include cylinder body 5, adjusting screw rod 3, sealing plate 9, wherein, valve body 16 1 sides are outlet pipe 17, open and close the concrete setting of valve on boiler and are communicated with the boiler blow-down water pipe by outlet pipe 17 through valve.Valve body 16 bottoms are intake pipe 14, and for the ease of sealing, the tube head of intake pipe 14 can be designed to flange shape, and valve body 16 tops connect cylinder body 5, between cylinder body 5 and the valve body 16 sealing plate 9 are arranged, and concrete available bolt, nut connect.Piston 1 is assemblied in the cylinder body 5, form by up and down two-layer rigid disk 6 and middle rubber seal 7, connect with bolt, nut, pressure spring 4 peaks at piston 1 and scyewed joint between the adjusting screw rod 3 at cylinder body 5 tops, cylinder body 5 tops also have turnover water pipe 20, piston 1 acts on the valve rod 10, and valve rod 10 terminations are the valve core 15 that is sealed into water pipe 14.
The effect of valve core 15 mat hydraulic pressure and piston 1 is opened, with valve open, cylinder body 5 bottoms can also be provided with an intake pipe 8, and available water pump pressure water injection is injected cylinder bodies 5 through intake pipe 8, the resistance when opening in order to the valve core 15 of the keying valve that helps to overcome Heating System of High Residential Buildings.Said adjusting screw rod 3 is a cored screw, and turnover water pipe 20 is communicated with outlet pipe 17 with pipeline 18 through valve 19, poorly sealed as valve core 15, will cause the water in the outlet pipe 17 to enter cylinder body 5, overflow, can conveniently observe through adjusting screw rod 3, certainly, adjust adjusting screw rod 3 and just can realize sealing, cylinder body 5 screw top are connected with stuffing box gland 2, flow into cylinder body 5 to avoid the water in the system.Valve core 15 is made up of rigid disk 11 and rubber seal dish 12, if necessary, can also add 3-4 guide grab 13 of stretching in the intake pipe 14 on valve core 15.
During actual the use, give earlier according to the highest heating height of user, by the adjusting screw rod 3 in the keying of the hydrostatic pressure table adjustment in the system valve, the control hydrostatic pressure, single-point level pressure resistance is opened greater than within the water system static pressure 0.01-0.03MPa, as long as the circulating water pump one in the system stops, open and close valve piston 11 and close backwater gradually automatically by pressure spring 4, boiler keeps normal pressure.
Use of the present utility model can be cancelled conventional pressure stabilizing device, reasonable in design, and reliable working operation, stable, simple in structure, easy to use has very big promotional value.
Claims (5)
1, a kind of keying valve of normal-pressure hot-water boiler, it includes valve body (16), pressure spring (4), piston (1), valve rod (10), valve core (15), it is characterized in that it also includes cylinder body (5), adjusting screw rod (3), sealing plate (9), wherein, valve body (16) one sides are outlet pipe (17), valve body (16) bottom is intake pipe (14), top connects cylinder body (5), between cylinder body (5) and the valve body (16) sealing plate (9) is arranged, piston (1) is assemblied in the cylinder body (5), pressure spring (4) peaks at piston 1 and scyewed joint between the adjusting screw rod (3) at cylinder body (5) top, cylinder body (5) top also has turnover water pipe (20), piston (1) acts on the valve rod (10), and valve rod (10) termination is for being sealed into the valve core (15) of water pipe (14).
2, keying valve according to claim 1 is characterized in that cylinder body (5) bottom also has intake pipe (8).
3, keying valve according to claim 1 and 2 it is characterized in that said adjusting screw rod (3) is a cored screw, and turnover water pipe (20) is communicated with outlet pipe (17) through valve (19).
4, keying valve according to claim 3 is characterized in that cylinder body 5 screw top are connected with stuffing box gland (2).
5, keying valve according to claim 1 is characterized in that said valve core (15) is made up of rigid disk (11) and rubber seal dish (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93223431 CN2168134Y (en) | 1993-09-04 | 1993-09-04 | Opening-closing valve for atmospheric hot water boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93223431 CN2168134Y (en) | 1993-09-04 | 1993-09-04 | Opening-closing valve for atmospheric hot water boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2168134Y true CN2168134Y (en) | 1994-06-08 |
Family
ID=33801749
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93223431 Expired - Fee Related CN2168134Y (en) | 1993-09-04 | 1993-09-04 | Opening-closing valve for atmospheric hot water boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2168134Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103671947A (en) * | 2013-12-24 | 2014-03-26 | 徐州中矿大贝克福尔科技有限公司 | Liquid injection valve and method for controlling setting accelerator adulteration on pipeline outlet |
| CN108895166A (en) * | 2018-08-27 | 2018-11-27 | 普雷沃流体控制科技（芜湖）有限公司 | A kind of valve |
-
1993
- 1993-09-04 CN CN 93223431 patent/CN2168134Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103671947A (en) * | 2013-12-24 | 2014-03-26 | 徐州中矿大贝克福尔科技有限公司 | Liquid injection valve and method for controlling setting accelerator adulteration on pipeline outlet |
| CN108895166A (en) * | 2018-08-27 | 2018-11-27 | 普雷沃流体控制科技（芜湖）有限公司 | A kind of valve |
| CN108895166B (en) * | 2018-08-27 | 2019-11-08 | 普雷沃流体控制科技（芜湖）有限公司 | A kind of valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |