CN101625050B

CN101625050B - Temperature controlling valve capable of cleaning valve core on line

Info

Publication number: CN101625050B
Application number: CN200810116422XA
Authority: CN
Inventors: 全龙浩
Original assignee: Beijing Tianbaili New Technology Development Co Ltd
Current assignee: CHANGCHUN HOKEN XINGYE ENERGY TECHNOLOGY CO., LTD.
Priority date: 2008-07-10
Filing date: 2008-07-10
Publication date: 2011-06-29
Anticipated expiration: 2028-07-10
Also published as: CN101625050A

Abstract

The invention discloses a temperature controlling valve capable of cleaning a valve core on line, and belongs to the technical field of heating valves. When the valve works normally, the valve can effectively control the indoor temperature; and when the valve core in the valve is blocked by impurities in a medium, the valve core can be detached to be cleaned without detaching the valve under the condition of normal heating of a system.

Description

But the thermostat valve of on-line cleaning spool

Technical field

But a kind of thermostat valve of on-line cleaning spool belongs to and adopts the heating valve technology field.

Background technique

Existing thermostat valve technology is by the temperature transducer that is installed in valve top, directly promotes the work of carrying out of spool.On the structure,, all adopt spool and temperature sensing device isolating seal in order to prevent leaking of thermal medium.Therefore valve does not possess online dirt eliminating function.Thermostat valve is through after the operation of long period, because the various impurity in the thermal medium, along with the thermal medium circulation, stop up spool gradually, for example adopt the temperature control valve of magnetic coupling structure,, impurity in valve core housing, occurs through after the operation of certain hour, influence the flexible keying of valve, occur temperature control inaccurate or at all can not the control room in temperature.Occur after this type of problem, only way is exactly that the pipe valve of the water inlet of room heater and backwater is closed, and newer thermostat valve is changed the valve that has stopped up, because dismounting is very inconvenient, the valve that disassembles generally just can not re-use, and causes waste, has also influenced normal heating.

Summary of the invention

Purpose of the present invention, but provide a kind of thermostat valve of on-line cleaning spool.

The technical solution of the utility model is achieved like this, and thermostat valve is made up of valve body, spool, temperature controlling head;

Spool comprises lower piston, upper piston, valve core housing, cartridge cover; The water outlet of water inlet is down arranged in the valve body; Temperature controlling head comprises valve bonnet, and is installed in the magnet ring cover that withstands on reset spring in the bonnet, that be enclosed within the valve core housing outside, the reset spring, the coupling component that withstand the magnet ring set upper side, the temperature transducer that is enclosed within coupling component top, and temperature transducer is installed in the bonnet; Described lower piston bottom studs with out waterstop ring, is with the action seal ring outside the middle part, is with outside the top for the blowdown seal ring, and the upper stem part is connected with upper piston by screw thread, and the lower piston body has a relief hole from top to bottom; Described upper piston is enclosed within the valve core housing, in stud with the magnetic post; Described cartridge cover is installed in spool in the valve body by the screw thread outside the bottom, and top is connected with valve bonnet by outside thread, and with the valve core housing sealing and fixing at the valve bonnet inner bottom part; The upper end of magnet ring cover is withstood in described link lower end, and the rhabodoid on top is inserted in the bellows in the temperature transducer; Described magnetic post, magnet ring cover are docked by two same polarity magnets; At normal operating condition, after configuring control temperature, reset spring with magnet ring cover top upwards, by magnetic coupling interaction, magnet ring is upwards carried the magnetic post in the upper piston in the spool, and upper piston drives lower piston again and leaves the interior water outlet of valve body, valve opening, heat medium flow is to radiator; When room temperature surpasses setting temperature, organism expands in the temperature transducer, the compressing bellows also forces coupling component, magnet ring cover to move downward, in the compression reset spring, the magnetic post that drives in the upper piston in the spool moves down, upper piston promotes lower piston again and moves down and seal water outlet, reduce thermal medium (or turn-offing thermal medium) and flowed to radiator, when room temperature drops to set temperature value following time, organism shrinks in the temperature transducer, under the reset spring effect, lower piston leaves water outlet again, and thermal medium flows to radiator again.After thermostat valve moves the long period, impurity has stopped up valve core housing, the magnet ring cover can not drive flexibly, during the lower piston motion, can clean spool: the bonnet that temperature transducer will be installed is unloaded down from valve bonnet, and then valve bonnet disassembled from cartridge cover, this moment the magnet ring cover, reset spring is also dismantled down, along with valve bonnet withdraws from gradually, hydraulic pressure will be gone up lower piston and upwards push away, when valve bonnet withdraws from fully, hydraulic pressure will be gone up the interior upper end that lower piston withstands on cartridge cover fully, and with the seal ring on lower piston top, tightly be pressed in the seal groove in the cartridge cover, after medium in the valve can not be revealed from here, just the valve core housing that disassembles can be cleaned, cleaned, again with spool, valve bonnet, bonnets etc. are installed reduction, and valve just recovers proper functioning again.

The invention has the beneficial effects as follows, during the valve proper functioning, can effectively control room temperature, when valve is stopped up by the impurity in the medium, can normally heat in system, need not dismantle valve body situation under spool is cleaned.

Description of drawings

Accompanying drawing is a structure relative position schematic representation of the present invention.

In the accompanying drawing, 1. valve body, 2 lower pistons, 3 cartridge cover, 4 reset springs, 5 valve core housings, 6 magnet ring covers, 7 links, 8 bonnets, 9 temperature transducers, 10 upper pistons, 11 magnetic posts, 12 valve bonnets, 13 seal grooves, seal ring on 14,15 middle part seal rings, 16 lower seal.Normal MEDIA FLOW direction is seen among the figure shown in the arrow.

Embodiment

The specific embodiment of the present invention is to adopt the temperature transducer (9) of thermometer bulb formula.Now in conjunction with the accompanying drawings whole working principle is further specified.Do not stopped up and during proper functioning as spool by the impurity in the medium, when indoor temperature is lower than the setting value of bonnet, bellows in the temperature transducer (9) is not compressed, thereby the bellows in the temperature transducer (9), it is downward can not promote link (7), because the effect of reset spring (4), magnet ring cover (6), coupling component (7) is in the higher position, magnet ring cover (6) passes through magnetic coupling interaction, magnetic post (11) in the upper piston in the valve core housing (5) is risen to the higher position, the moving lower piston (10) of going up of magnetic cornice, (2) leave the interior water outlet of valve body (1), thermal medium is by the flow direction valve radiator; When indoor environment temperature raises gradually, and when surpassing setting value, organic solvent in the temperature transducer (9) expands, force the bellows compression in it, the bellows compression promotes coupling component (7), magnet ring cover (6) moves downward, in compression reset spring (4), drive in the valve core housing (5), magnetic post (11) in the upper piston (10) moves downward, magnetic post (11) promotes lower piston (2) and seals the interior water outlet of valve body (1) downwards, the thermal medium that flows to radiator reduces or cutout, when room temperature drops to certain value gradually, coupling component (7), magnet ring cover (6), on, lower piston (10), (2), rise under the control of temperature transducer (9) and reset spring (4) again, thermal medium is again through the flow direction valve radiator.The present invention stops up valve core housing (5) as the impurity in the medium through after the use of long period, causes upper and lower piston (10), (2) motion dumb, can not be along with the variation of room temperature, effectively during the control media flow, can clean valve; Total valve in the system that need not blind off a line this moment, also valve need not be disassembled from pipeline, just can clean the present invention: the bonnet (8) that temperature transducer (9) will be installed is unloaded down from valve bonnet (12), and then valve bonnet (12) disassembled from cartridge cover (3), this moment magnet ring cover (6), reset spring (4) is also along with being disassembled down, along with valve bonnet (12) withdraws from gradually, the hydraulic pressure that valve body (1) is inner, to go up lower piston (10), (2) upwards push away, when valve bonnet (12) gradually during backout valve core cap (3), hydraulic pressure will be gone up lower piston (10), (2) withstand on the interior upper end of cartridge cover (3) fully, and with the seal ring (14) on lower piston (2) top, tightly be pressed in the seal groove (13) in the cartridge cover (3), when medium in the valve can not be revealed from here, just valve core housing (5) can be disassembled, and clean.Cleaning finishes to valve core housing (5), and upper and lower on inspection piston (10), (2) are under the drive of magnet ring cover (6), and after the activity freely, with installation reduction one by one such as spools, valve can have been controlled room temperature again automatically again.Cleaning to valve also can regularly be carried out every year.

Claims

1. but the thermostat valve of an on-line cleaning spool, it is characterized in that thermostat valve is made up of valve body, spool, temperature controlling head, temperature controlling head comprises valve bonnet, and is installed in the magnet ring cover that withstands on reset spring in the valve bonnet, that be enclosed within the valve core housing outside, the reset spring, the coupling component that withstand the magnet ring set upper side; Be enclosed within the temperature transducer on coupling component top, temperature transducer is installed in the bonnet; Spool comprises lower piston, upper piston, valve core housing, cartridge cover; The valve of described thermostat valve for intaking down, and water outlet is arranged in the valve body; Cartridge cover is installed on the valve body by the screw thread outside the bottom, and top is connected with valve bonnet by outside thread, and with the valve core housing sealing and fixing in valve bonnet; When cleaning spool, the seal ring on lower piston top tightly is pressed in the seal groove in the cartridge cover.

2. but the thermostat valve of a kind of on-line cleaning spool according to claim 1, it is characterized in that the lower piston bottom studs with out waterstop ring, the middle part is outer to be with the action seal ring, is with outside the top for the blowdown seal ring, and the upper stem part is connected with upper piston by screw thread.