CN203809705U - Control valve for direct-connecting heating equipment - Google Patents
Control valve for direct-connecting heating equipment Download PDFInfo
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- CN203809705U CN203809705U CN201420240643.9U CN201420240643U CN203809705U CN 203809705 U CN203809705 U CN 203809705U CN 201420240643 U CN201420240643 U CN 201420240643U CN 203809705 U CN203809705 U CN 203809705U
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- valve
- control valve
- main
- main valve
- control
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Abstract
The utility model discloses a control valve for direct-connecting heating equipment. The control valve comprises a main valve body, a main valve cover, a control valve cover, a pressure maintaining control valve and a pressure reducing control valve. The main valve cover is arranged on the main valve body, a main control valve flap is arranged between the main valve cover and the main valve body, and a main valve control cavity is formed between the main control valve flap and the main valve cover; the control valve cover is arranged on the main valve cover, and the pressure maintaining control valve and the pressure reducing control valve are both arranged on the control valve cover; the main valve is provided with a water inlet, a water outlet and a main control valve core used for controlling the water inlet and outlet to be open and close, the main valve body adjacent to the water inlet is provided with a pressure maintaining passage communicated with the pressure maintaining control valve, the pressure maintaining passage is communicated with the main valve control cavity, and a part of the main valve body, which is adjacent to the water outlet, is provided with a pressure reducing passage communicated with the pressure reducing control valve. The control valve has the functions of pressure reducing, pressure maintaining and partitioning, occupied space is small, resources and cost are saved, usage, mounting and adjustment are facilitated, and the control valve has significant application value.
Description
Technical field
The utility model relates to a kind of control valve, specifically, relates to a kind of control valve for direct connection heating equipment.
Background technique
At present, in tall building, in district heating Zhong district Ji Di district pipeline, reduction valve and isolating valve are all housed, wherein, dress reduction valve is in order to guarantee that high district backwater can not superpressure, is also guarantee pipe-line system safety and guarantee to affect low district user heating.From the structural principle of reduction valve, can find out, reduction valve can only be controlled high district backwater earial drainage to the maximum pressure of return main net, and can not guarantee high district return pipe can not produce negative pressure and turn.If return pipe turned letter will produce high district upper cold and lower heat and current vibrations sound, also can corrode high district pipe-line system and cannot emptying pipeline in air.Cut off device carrys out work to increase pipe damage method, can only subtract its dynamic pressure, also cannot guarantee that high district return pipe can not produce negative pressure.If open return case is installed in Gao district return water system, water tank occupation area is large, and thermal loss is large, and cost is high, also can increase oxygen corrosion simultaneously.If install Decompression valves additional before reduction valve, although be feasible from principle, but Decompression valves and reduction valve are all pressured differences to be controlled, on a pipeline, contact a reduction valve and a Decompression valves need larger pressure reduction, and the too small meeting of pressure reduction has impact or uncontrollable to controlling sensitivity.Particularly high district pressure of return water and municipal administration require the poor little situation of pressure of return water just cannot work, so direct connection heating equipment is all to carry out work by a reduction valve substantially now, although can solve backwater can superpressure, uncontrollable high district return pipe generation negative pressure and heating stability.
Model utility content
The problems referred to above and the demand that for prior art, exist, the purpose of this utility model is to provide a kind of control valve for direct connection heating equipment that has decompression, holds pressure and cutting function, with realize can effectively control high district return pipe can not produce negative pressure He Gao district backwater can superpressure, can also control high sound zone system pressure and reach energy-saving effect to alleviate the load of suction booster.
For achieving the above object, the utility model adopts following technological scheme:
A kind of control valve for direct connection heating equipment, comprise main valve body, main valve lid, application valve cover, hold pressure control valve and pressure reduction control valve, described main valve lid is arranged on described main valve body, between described main valve lid and described main valve body, be provided with main control valve diaphragm, between described main control valve diaphragm and described main valve lid, be formed with main valve control chamber; Described application valve cover is arranged at described main valve and covers, describedly hold pressure control valve and pressure reduction control valve is all arranged on described application valve cover, wherein, described main valve body has water intake, water outlet and for controlling the main control spool of the two break-make, described main valve body near the position of described water intake be provided with hold pressure control valve described in leading to hold pressure path, described holding presses path to communicate with described main valve control chamber, and described main valve body is provided with near the position of described water outlet the decompression path that leads to described pressure reduction control valve.
As a kind of preferred version, described main valve covers the filter being provided with for the described fluid of holding pressure path is filtered.
As further preferred version, described filter is arranged on the left side of main valve lid, presses path to join with holding.
As a kind of preferred version, on described application valve cover, be provided with the needle type valve of pressing path for holding described in controlling, described needle type valve with hold pressure control valve and communicate.
As a kind of preferred version, described main valve covers and is provided with for controlling the outlet valve of described decompression path.
As further preferred version, described outlet valve is arranged at the right side of main valve lid.
As a kind of preferred version, on described application valve cover, be provided with for controlling the miniature electric valve of described decompression path, described miniature electric valve communicates with pressure reduction control valve.
As further preferred version, described miniature electric valve is miniature electric ball valve.
As a kind of preferred version, described hold pressure control valve and pressure reduction control valve forms by adjusting screw rod, diaphragm, spring, control spool and control valve body.
Compared with prior art, the utlity model has following beneficial effect:
A kind of control valve for direct connection heating equipment provided by the utility model, integrate decompression, hold and press and cutting function, can not only effectively control high district return pipe can not produce negative pressure He Gao district backwater can superpressure, can also control high sound zone system pressure and reach energy-saving effect to alleviate the load of suction booster; And it is little to take up room, economize on resources and expense, use Installation and Debugging convenient, there is conspicuousness using value.
Accompanying drawing explanation
The structural representation of a kind of control valve for direct connection heating equipment that Fig. 1 provides for the utility model.
In figure: 1, main valve body; 2, main valve lid; 3, application valve cover; 4, hold pressure control valve; 5, pressure reduction control valve; 6, main control valve diaphragm; 7, main valve control chamber; 8, water intake; 9, water outlet; 10, main control spool; 11, hold pressure path; 12, decompression path; 13, filter; 14, needle type valve; 15, outlet valve; 16, miniature electric valve; 17, main control valve core cover plate; 18, main control valve seat; 19, adjusting screw rod; 20, diaphragm; 21, spring; 22, control spool; 23, control valve body.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the technical solution of the utility model is further elaborated.
As shown in Figure 1: a kind of control valve for direct connection heating equipment that the utility model provides, comprise main valve body 1, main valve lid 2, application valve cover 3, hold pressure control valve 4 and pressure reduction control valve 5, main valve lid 2 is arranged on main valve body 1, application valve cover 3 is arranged on main valve lid 2, hold pressure control valve 4 and pressure reduction control valve 5 is all arranged on application valve cover 3, hold pressure control valve 4 and pressure reduction control valve 5 by adjusting screw rod 19, diaphragm 20, spring 21, control spool 22 and control valve body 23 forms.
In main valve body 1, be provided with main control valve diaphragm 6, main control spool 10, main control valve core cover plate 17 and main control valve seat 18, wherein the upper end of main control spool 10 extends in the blind hole (not indicating in figure) of main valve lid 2.Between main control valve diaphragm 6 and main valve lid 2, be formed with main valve control chamber 7, form major control part of the present utility model.Particularly, main valve body 1 has water intake 8, water outlet 9 and for controlling the main control spool 10 of the two break-make, main valve body 1 is provided with to lead near the position of water intake 8 and holds holding of pressure control valve 4 and press path 11, this is held and presses path 11 also to communicate with main valve control chamber 7, and main valve body 1 is provided with near the position of water outlet 9 the decompression path 12 that leads to pressure reduction control valve 5.
On main valve lid 2, be provided with the filter 13 for press the fluid of path 11 to filter to holding, this filter 13 is arranged on the left side of main valve lid 2, presses path 11 to join with holding.On application valve cover 3, be provided with for controlling and hold the needle type valve 14 of pressing path 11, needle type valve 14 is for the regulate main valve speed of opening and the function of all opening main valve, and needle type valve 14 is respectively with filter 13 and hold pressure control valve 4 and communicate.
Accordingly, be provided with for controlling the outlet valve 15 of decompression path 12 on main valve lid 2, this outlet valve 15 is arranged at the right side of main valve lid 2.On application valve cover 3, be provided with for controlling the miniature electric valve 16 of decompression path 12, this miniature electric valve 16 is used for automatic emergency and cuts out main valve, and miniature electric valve 16 communicates with outlet valve 15 and pressure reduction control valve 5 respectively.Described miniature electric valve 16 is preferably miniature electric ball valve.
The water of water intake 8 flows into respectively main valve control chamber 7 and holds pressure control valve 4 runners to needle type valve 14 through filter 13.If water intake 8 pressure surpass setting value, to hold pressure control valve 4 spools and open under the effect of diaphragm 20, main valve control chamber 7 internal pressures decline, and main control spool 10 moves up, and main valve is opened; Otherwise main valve is closed, thereby reach water intake pressure, keep constant object, water intake pressure can be set a lower limit.
Pressure reduction control valve 5 spools are subject to water outlet 9 pressure and control, if water outlet 9 pressure surpass setting value, will close pressure reduction control valve 5 spools, and main valve control chamber 7 internal pressures raise, and main control spool 10 moves down, and main valve is closed; Otherwise, open, with this, control water outlet pressure and can not exceed CLV ceiling limit value.
Visible in sum: the control valve that the utility model provides, can collect decompression, hold and press and cut off in one, by regulating the pressure of main valve control chamber, control moving up and down of main control spool, the pressure that can complete water intake and water outlet is controlled, can not only effectively control high district return pipe can not produce negative pressure He Gao district backwater can superpressure, can also control high sound zone system pressure and reach energy-saving effect to alleviate the load of suction booster, in addition, also there is volume little, function is complete, the advantages such as use Installation and Debugging are convenient and safe and reliable, can be used for direct connection heating equipment, there is conspicuousness using value.
Finally be necessary described herein: above-described embodiment is only for being described in more detail the technical solution of the utility model; can not be interpreted as the restriction to the utility model protection domain, some nonessential improvement that those skilled in the art makes according to foregoing of the present utility model and adjustment all belong to protection domain of the present utility model.
Claims (9)
1. the control valve for direct connection heating equipment, it is characterized in that: comprise main valve body, main valve lid, application valve cover, hold pressure control valve and pressure reduction control valve, described main valve lid is arranged on described main valve body, between described main valve lid and described main valve body, be provided with main control valve diaphragm, between described main control valve diaphragm and described main valve lid, be formed with main valve control chamber; Described application valve cover is arranged at described main valve and covers, describedly hold pressure control valve and pressure reduction control valve is all arranged on described application valve cover, wherein, described main valve body has water intake, water outlet and for controlling the main control spool of the two break-make, described main valve body near the position of described water intake be provided with hold pressure control valve described in leading to hold pressure path, described holding presses path to communicate with described main valve control chamber, and described main valve body is provided with near the position of described water outlet the decompression path that leads to described pressure reduction control valve.
2. control valve as claimed in claim 1, is characterized in that: described main valve covers the filter being provided with for the described fluid of holding pressure path is filtered.
3. control valve as claimed in claim 2, is characterized in that: described filter is arranged on the left side of main valve lid, presses path to join with holding.
4. control valve as claimed in claim 1, is characterized in that: described main valve covers and is provided with for controlling the outlet valve of described decompression path.
5. control valve as claimed in claim 4, is characterized in that: described outlet valve is arranged at the right side of main valve lid.
6. control valve as claimed in claim 1, is characterized in that: on described application valve cover, be provided with described in controlling and hold the needle type valve of pressing path, described needle type valve with hold pressure control valve and communicate.
7. the control valve as described in claim 1 or 6, is characterized in that: on described application valve cover, be provided with for controlling the miniature electric valve of described decompression path, described miniature electric valve communicates with pressure reduction control valve.
8. control valve as claimed in claim 7, is characterized in that: described miniature electric valve is miniature electric ball valve.
9. control valve as claimed in claim 1, is characterized in that: described hold pressure control valve and pressure reduction control valve forms by adjusting screw rod, diaphragm, spring, control spool and control valve body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420240643.9U CN203809705U (en) | 2014-05-12 | 2014-05-12 | Control valve for direct-connecting heating equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420240643.9U CN203809705U (en) | 2014-05-12 | 2014-05-12 | Control valve for direct-connecting heating equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203809705U true CN203809705U (en) | 2014-09-03 |
Family
ID=51448455
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420240643.9U Expired - Fee Related CN203809705U (en) | 2014-05-12 | 2014-05-12 | Control valve for direct-connecting heating equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203809705U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103982664A (en) * | 2014-05-12 | 2014-08-13 | 美国阿达姆斯流体有限公司 | Control valve integrated with functions of pressure reducing, pressure maintaining and separating and application thereof |
-
2014
- 2014-05-12 CN CN201420240643.9U patent/CN203809705U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103982664A (en) * | 2014-05-12 | 2014-08-13 | 美国阿达姆斯流体有限公司 | Control valve integrated with functions of pressure reducing, pressure maintaining and separating and application thereof |
| CN103982664B (en) * | 2014-05-12 | 2016-08-24 | 美国阿达姆斯流体有限公司 | A kind of integrate decompression, hold pressure and the control valve of cutting function and application thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180428 Address after: 201203 Shanghai, China (Shanghai) free trade trial area, 1133, 1077 2, Zu Chong Road. Patentee after: SHANGHAI YYJ FIRE PROTECTION SCIENCE & TECHNOLOGY CO.,LTD. Address before: Unit 475, Central Avenue, Las Vega, Nevada, USA Patentee before: ADAMS FLUID Inc. |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140903 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |