CN2376599Y

CN2376599Y - Automatic exhausting valve for central heating system

Info

Publication number: CN2376599Y
Application number: CN 99224270
Authority: CN
Inventors: 丁卫
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-06-24
Filing date: 1999-06-24
Publication date: 2000-05-03
Anticipated expiration: 2009-06-24

Abstract

The utility model relates to an automatic exhausting valve for a radiator for eliminating accumulation air in a heating pipeline system, which comprises a valve body with an air inlet. A float and a shifting fork lever are arranged in the valve body. The shifting fork lever is connected with a sealing element in an exhaust nozzle. The lower port of a valve core in the sealing element is connected with a piston rod, and the lower end of the piston rod is arranged in a guide hole on the bottom wall of the valve body. An electromagnet is arranged nearby the lower end of the guide hole. The utility model can forcibly exhaust air in the pipeline system, and has obvious function for improving heat circulation and heating effect.

Description

The heating installation automatic exhaust steam valve

The utility model relates to and gets rid of the employed a kind of heating installation automatic exhaust steam valve of air accumulation in a kind of heating pipe-line system.

Existing employed air bleeding valve, comprise a valve body substantially, it is cursory to be provided with in the valve body, a cursory end last and lever joins, the other end of lever and the exhaust potted component in chewing joins, and this air bleeding valve is to utilize gas, liquid that cursory lifting and lever principle are realized that exhaust chews to open or close to reach the exhaust purpose.Its shortcoming is: because the heat supply water pipe is in installation process, the gradient, arc occur or phenomenon such as bend over through regular meeting, can retain the part air like this in the heating tube and can not go here and there to discharging in air bleeding valve, thereby influence heating system.Want to discharge the air in the heating tube, have only family, and need step on the stool skyer gas that begins to rehearse and chew Lian Shui band gas and together discharge to top resident family.If heating system generation problem, the workload of exhaust is just bigger, so not only dangerous, also can increase the contradiction between operating personnel and the resident family, and supply and exhaust work has brought inconvenience.

The purpose of this utility model provides a kind of safe and reliable, improves thermal cycle, can discharge a kind of heating installation automatic exhaust steam valve of institute's air accumulation in the heating tube.

The utility model is to realize like this, a kind of heating installation automatic exhaust steam valve, comprise a valve body that has air inlet, it is cursory to be provided with in the valve body, a cursory end last and shifting fork bar flexibly connects, the other end of shifting fork bar is taken on the end flanges dish that drops on spool, it is stifled that the upper port of described spool is provided with a sealing, it is characterized in that: be connected with a piston rod on the described spool, the lower end of this piston rod is positioned on the guide hole of valve body diapire, lower end near guide hole is provided with electromagnet, the top of described spool is enclosed within the valve core housing, and the external diameter of this valve core housing is shaped on screw thread and passes the valve body upper wall and chew with the exhaust that has sealing ring and link to each other, and the bottom of described valve core housing is provided with the flange that extends to radially, this flange bears against spring support on valve body and in the inwall, is provided with a back-moving spring between the end flanges dish of described spring support and spool.Described spring support comprises a channel-section steel that is down flute profile, two trough rim plates be provided with vertical cube to guiding translation hole, this guiding translation hole is provided with a spring fastening, and straddles the lower end in guiding translation hole.The described shifting fork bar end of dropping on the spool end flanges dish of taking is provided with the ear that protrudes to both sides, in the guiding translation hole on this ear insertion groove side plate.

The utility model mainly is to be connected with a piston rod in the lower end of spool, the cursory guide hole that places the valve body diapire is passed in the lower end of this piston rod, the lower end of described guide hole is provided with electromagnet, when the air in the needs eliminating pipeline, electromagnet is switched on, thereby make stifled the moving down of sealing on the piston rod drive spool, body cavity is communicated with the delivery pipe in the external world, after the emptying, deenergization, spool playbacks under the effect of back-moving spring, and the sealing on the spool simultaneously is stifled chews a mouthful fastening with exhaust.All are normal when pipeline is installed, when the air in the system can be collected in the air bleeding valve of pipeline end, can not start electromagnet, still with the storage tension force of cursory, the shifting fork bar in the air bleeding valve, spool and piston rod upper spring and cursory between interaction, reach closing of air bleeding valve.

The utility model can improve the reliability and the practicality of air bleeding valve, when breaking down in pipe-line system and the air bleeding valve, needn't arrive roof and carry out artificial exhaust, as long as by opening button switch force start electromagnet, the adhesive piston rod is opened exhaust and is chewed and mouthful get final product, this force start system, not only can clean the built-in system of air bleeding valve, prolong its service life again.The utility model has obvious effect to raising thermal cycle, heating effect.

Drawing is described as follows:

Fig. 1 is the utility model sectional structure schematic diagram.

Fig. 2 is Figure 1A-A sectional structure schematic diagram.

Fig. 3 is Fig. 2 B-B sectional structure schematic diagram.

Below in conjunction with accompanying drawing the utility model is described in further detail.

Referring to Fig. 1.As can be seen from the figure, the utility model comprises a valve body 19 that has air inlet 21, be provided with cursory 18 in the valve body 19, cursory 18 upper end is provided with a protruding button 4 that has the neck neck, this protruding button 4 flexibly connects with an end of shifting fork bar 5, the other end of shifting fork bar 5 is taken on the end flanges dish 13 that drops on spool 12, the upper port of spool is inserted with a sealing stifled 10, lower port is with the piston rod 16 that is threaded, the through hole 17 that the lower end of this piston rod 16 is passed on cursory 18 places in the guide hole 3 of valve body diapire, and the lower end of close guide hole 3 is provided with sealing ring 2 and electromagnet 1.Described spool 12 is enclosed within the valve core housing 7, and the lower end of this valve core housing 7 is provided with to the flange 6 that radially extends, and the external diameter of upper end is shaped on screw thread and passes the upper wall of valve body, and chews 8 with the exhaust that has sealing ring and link to each other.Bear against spring support 15 above the flange 6 of described valve core housing, be provided with back-moving spring 14 between the end flanges dish 13 of the lower end of this spring support 15 and spool.When pipeline just often, this back-moving spring 14 is upspring spool 12, make sealing stifled 10 on the spool press off exhaust and chew mouthfuls 9, when air enters the inner chamber of air bleeding valve 19, cursory 18 sink, the sealing stifled 10 that drives on the spools by shifting fork bar 5 moves down, and air is just chewed mouthful 9 extraneous delivery pipes discharges that link to each other with exhaust from the crack 11 between spool 12 and the valve core housing 7.This air bleeding valve does not start electromagnet 1 and can play scavenging action yet under normal situation.When if the pipe-line system air accumulation can not enter air bleeding valve, can start electromagnet, the lower end 20 of adhesive piston rod 16, drive spool 12 compression reseting springs 14 simultaneously, make the air bleeding valve exhaust, when pipe-line system reaches the heating temperature, behind the powered-down switch 22, spool 12 spring 14 that is reset resets valve closing.Referring to Fig. 2, as can be seen from Figure 2, described spring support has a channel-section steel 25 that is down flute profile, have the fixing hole that valve core housing 7 upper ends are passed on the trough floor, two trough rim plates 23 be provided with vertical cube to guiding translation hole 24, guiding translation hole 24 is provided with a spring fastening 26 and straddles in the lower end in guiding translation hole, and described back-moving spring 14 is inserted in the top of piston rod 16, and places between the end flanges dish 13 of spring fastening 26 and spool.Referring to Fig. 3, Fig. 3 shows the plan structure figure of shifting fork bar 5.One end of this shifting fork bar 5 has slotted hole 28 and is enclosed within on the cursory protruding button 4, and the other end of described shifting fork bar is provided with the ear 27 that protrudes to both sides, and this ear 27 is inserted in respectively in the guiding translation hole on the trough rim plate 23.The utility model also can be realized automatic control, that is to say at the end of heating system a temperature sensor is installed, when temperature is lower than the heating installation water temperature, illustrate that pipeline is stopped up by air, temperature sensor passes to controller with signal, opens air bleeding valve thereby start electromagnet, when temperature is raised to the heating installation water temperature, controller makes the electromagnet outage, and back-moving spring makes the spool valve-off.

Claims

1, a kind of heating installation automatic exhaust steam valve, comprise a valve body (19) that has air inlet (21), be provided with in the valve body (19) cursory (18), cursory (18) go up and an end of shifting fork bar (5) flexibly connects, the other end of shifting fork bar (5) is taken on the end flanges dish (13) that drops on spool (12), the upper port of described spool (12) is provided with a sealing stifled (10), it is characterized in that: be connected with a piston rod (16) on the described spool (12), the lower end of this piston rod (16) is arranged in the guide hole (3) of valve body diapire, lower end near guide hole (3) is provided with electromagnet (1), the top of described spool (12) is enclosed within the valve core housing (7), the external diameter of this valve core housing (7) is shaped on screw thread and passes the valve body upper wall and chew (8) with the exhaust that has sealing ring and link to each other, the bottom of described valve core housing (7) is provided with the flange (6) that extends to radially, this flange (6) bears against spring support (15) on valve body and in the inwall, is provided with a back-moving spring (14) between the end flanges dish (13) of described spring support (15) and spool.

2, heating installation automatic exhaust steam valve according to claim 1, it is characterized in that: described spring support (15), comprise a channel-section steel (25) that is down flute profile, two trough rim plates (23) be provided with vertical cube to guiding translation hole (24), this guiding translation hole is provided with a spring fastening (26), and straddles the lower end in guiding translation hole (24).

3, heating installation automatic exhaust steam valve according to claim 1 and 2, it is characterized in that: the described shifting fork bar end of dropping on the spool end flanges dish (13) of taking is provided with the ear (27) that protrudes to both sides, in the guiding translation hole (24) on this ear (27) insertion groove side plate (23).