Background technology
China's heating energy consumption is huge, and along with the improving constantly of living standards of the people, heating area can be increasing.Carry out heating and energy saving significant meaning is arranged.In order to reach not only comfortable but also economic heat supply purpose, will regulate flow, temperature, the pressure of heating system thermal medium.The automatic control of central heating and heating system is the important measures that energy-conservation requirement was normally moved and satisfied to the assurance heating system, also is one of modern sign of heat supply process level.China's heating system monitoring, conditioning equipment in the past falls behind, and energy consumption is higher.Be the security of operation that guarantees heating system, reliable, energy-conservation; The user's is comfortable, economical; I﹠M simply reaches operation automation, just must introduce the conditioning equipment that is suitable in heating system, satisfies the needs of the control method of operation automatically.In pipe-line system, adopt a kind of good control valve for the control reliability of pipe-line system and the reasonability of economy, important relation is arranged.
The existing self force type temperature regulating valve of China mainly contains two-way regulating valve and three-way control valve, and the kind of two-way regulating valve is more, and the kind of three-way control valve is less.Present three-way control valve all is the water-mixing temperature control valve, both feed valve pocket respectively when two different fluids of temperature, regulates both flow automatically by control valve, makes outlet temperature keep constant, also can shunt adjusting according to inlet temperature.Lack now and a kind ofly can regulate the self-operated three-way control valve that mixes discharge according to some inlet temperatures.
Summary of the invention
The present invention lacks a kind of problem that can regulate the self-operated three-way control valve that mixes discharge according to some inlet temperatures in order to solve in the present heating system, a kind of heating system that uses self-operated three-way water-mixing temperature control valve is provided.
It is that described system comprises the outer net feed pipe that the present invention solves the problems of the technologies described above the technical scheme of taking, user's feed pipe, bypass is mixed water pipe, the outer net return pipe, user's return pipe and a plurality of series connection heating user, it is characterized in that described system also comprises temperature control valve (TCV), described temperature control valve (TCV) is by valve body, the paraffin thermometer bulb, metal shell, barrier film, rubber stopper, bring the spool at the mouth of a river into, take the spool at the mouth of a river out of, the nylon connecting rod, the nylon spool, spring and temperature control handle constitute, one end of valve body is a smaller diameter end, the other end of valve body is a larger diameter end, the smaller diameter end of valve body is first import, valve body upper end sidewall is provided with second water inlet, the lower end sidewall of valve body is provided with first delivery port, and second water inlet and first delivery port are all near the larger diameter end setting of valve body, the paraffin thermometer bulb, metal shell, barrier film, rubber stopper, bring the spool at the mouth of a river into, take the spool at the mouth of a river out of, the nylon connecting rod, nylon spool and spring all are located in the valve body, the paraffin thermometer bulb, barrier film and rubber stopper all are contained in the metal shell by the smaller diameter end of valve body to the larger diameter end direction successively, the paraffin thermometer bulb is connected with diaphragm seal, barrier film is connected with rubber stopper, the nylon connecting rod stretches in the metal shell and with rubber stopper and is connected, the nylon connecting rod passes the nylon spool and spring is packed on the temperature adjustment handle, the nylon spool is connected with metal shell by the spool of bringing the mouth of a river into, and the nylon spool is connected with the nylon connecting rod by the spool of taking the mouth of a river out of;
One end of outer net feed pipe mixes an end of water pipe with bypass respectively and an end of user's feed pipe is communicated with, the other end that bypass is mixed water pipe is communicated with second water inlet of valve body, the other end of user's feed pipe is communicated with a plurality of heating users' that connect first family, a plurality of series connection heating users' tail family is communicated with an end of user's return pipe, the other end of user's return pipe is communicated with first water inlet of valve body, and first delivery port of valve body is communicated with the outer net return pipe.
The present invention has following beneficial effect: 1. the return water temperature that the utility model can constant user realize that user's temperature is adjustable, and equipment is simple in some values, and is energy-conservation; 2. when having the multiple heating user of constant flow and unsteady flow amount in the heating system, use the self-operated three-way temperature control valve (TCV) can realize moving under the operating mode of user's unsteady flow amount outer net constant flow; Adopt the self-operated three-way temperature control valve (TCV) can avoid the imbalance of heating system.
The specific embodiment
The specific embodiment one: present embodiment is described in conjunction with Fig. 1 and Fig. 2, the system of present embodiment comprises outer net feed pipe 2-2, user's feed pipe 3-2, bypass is mixed water pipe 4-1, outer net return pipe 5-2, user's return pipe 6-2 and a plurality of series connection heating user 7-1, it is characterized in that described system also comprises temperature control valve (TCV), described temperature control valve (TCV) is by valve body 1, paraffin thermometer bulb 1-4, metal shell 1-5, barrier film 1-6, rubber stopper 1-7, bring the spool 1-8 at the mouth of a river into, take the spool 1-9 at the mouth of a river out of, nylon connecting rod 1-10, nylon spool 1-11, spring 1-12 and temperature control handle 1-13 constitute, one end of valve body 1 is a smaller diameter end, the other end of valve body 1 is a larger diameter end, the smaller diameter end of valve body 1 is the first import 1-1, valve body 1 upper end sidewall is provided with the second water inlet 1-2, the lower end sidewall of valve body 1 is provided with the first delivery port 1-3, and the second water inlet 1-2 and the first delivery port 1-3 are all near the larger diameter end setting of valve body 1, paraffin thermometer bulb 1-4, metal shell 1-5, barrier film 1-6, rubber stopper 1-7, bring the spool 1-8 at the mouth of a river into, take the spool 1-9 at the mouth of a river out of, nylon connecting rod 1-10, nylon spool 1-11 and spring 1-12 all are located in the valve body 1, paraffin thermometer bulb 1-4, barrier film 1-6 and rubber stopper 1-7 all are contained in the metal shell 1-5 by the smaller diameter end of valve body 1 to the larger diameter end direction successively, paraffin thermometer bulb 1-4 and barrier film 1-6 are tightly connected, barrier film 1-6 is connected with rubber stopper 1-7, nylon connecting rod 1-10 stretches in the metal shell 1-5 and with rubber stopper 1-7 and is connected, nylon connecting rod 1-10 passes nylon spool 1-11 and spring 1-12 is packed on the temperature adjustment handle 1-13, nylon spool 1-11 is connected with metal shell 1-4 by the spool 1-8 that brings the mouth of a river into, and nylon spool 1-11 is connected with nylon connecting rod 1-10 by the spool 1-9 that takes the mouth of a river out of;
The end of outer net feed pipe 2-2 mixes the end of water pipe 4-1 with bypass respectively and the end of user's feed pipe 3-2 is communicated with, the other end that bypass is mixed water pipe 4-1 is communicated with the second water inlet 1-2 of valve body 1, the other end of user's feed pipe 3-2 is communicated with the first family of a plurality of heating user 7-1 that connect, the tail family of a plurality of series connection heating user 7-1 is communicated with the end of user's return pipe 6-2, the other end of user's return pipe 6-2 is communicated with the first water inlet 1-1 of valve body 1, and the first delivery port 1-3 of valve body 1 is communicated with outer net return pipe 5-2.
The specific embodiment two: in conjunction with Fig. 1 present embodiment is described, the system of present embodiment also comprises outer net water supply control valve 2-1, and outer net feed pipe 2-2 is provided with outer net water supply control valve 2-1, and this structure is used to regulate outer net and supplies water.Other composition and annexation are identical with the specific embodiment one.
The specific embodiment three: in conjunction with Fig. 1 present embodiment is described, the system of present embodiment also comprises the user control valve 3-1 that supplies water, and user's feed pipe 3-2 is provided with the user control valve 3-1 that supplies water, and this structure is used to regulate user's water supply.Other composition and annexation are identical with the specific embodiment one.
The specific embodiment four: in conjunction with Fig. 1 present embodiment is described, the system of present embodiment also comprises user's backwater control valve 6-1, and user's return pipe 6-2 is provided with user's backwater control valve 6-1, and this structure is used to regulate user's backwater.Other composition and annexation are identical with the specific embodiment one.
Operation principle: illustrate when system moves in conjunction with Fig. 1-Fig. 5, outer net feed pipe 2-2, the flow of outer net return pipe 5-2 remains unchanged, and the inflow temperature of the first water inlet 1-1 of valve body 1 is constant, and the return water temperature of control heating user 7-1 is a definite value.When if the return water temperature of heating user 7-1 is higher than the temperature value of control valve setting, the signal that control valve transmits according to temperature-sensing element, automatically adjust, the aperture of the second water inlet 1-2 of valve body 1 is increased, correspondingly bypass is mixed the flow increase of water pipe 4-1, the aperture of the first water inlet 1-1 of valve body 1 reduces, and the flow of user's feed pipe 3-2, a plurality of heating user 7-1, user's return pipe 6-2 reduces, and makes user's water-mixing temperature be reduced to setting value;
When if the return water temperature of heating user 7-1 is lower than the temperature value of control valve setting, the signal that control valve transmits according to temperature-sensing element, automatically adjust, the aperture of the second water inlet 1-2 of valve body 1 is reduced, correspondingly the flow of the mixed water pipe 4-1 of bypass reduces, the aperture of the first water inlet 1-1 of valve body 1 increases, and the flow of user's feed pipe 3-2, heating user 7-1, user's return pipe 6-2 increases, and makes user's water-mixing temperature be increased to setting value.Thereby realize the function of constant inlet temperature.
Wherein self-operated three-way mixes the adjustment process of water regulating valve and is: when temperature value that the inflow temperature of the first water inlet 1-1 of valve body 1 is set greater than temperature adjustment handle 1-13, paraffin thermometer bulb 1-4 senses variation of temperature, the volumetric expansion of being heated of paraffin element, expansive force is passed to nylon connecting rod 1-10 by barrier film 1-6 and rubber stopper 1-7, under the elastic force effect of expansive force and antagonistic spring 1-12, nylon spool 1-11 moves to the direction of the first water inlet 1-1 of valve body 1, the aperture of the second water inlet 1-2 of valve body 1 is increased, bypass is mixed the water yield and is increased, the inflow temperature of the first water inlet 1-1 of valve body 1 is reduced, when under the effect of antagonistic spring 1-12, reaching balance once more, during the position stability of nylon spool 1-11, the temperature of the first water inlet 1-1 of valve body 1 returns to setting value.When temperature that the inflow temperature of the first water inlet 1-1 of valve body 1 is set less than temperature adjustment handle 1-13, paraffin thermometer bulb 1-4 senses variation of temperature, temperature reduces, the volume contraction of paraffin element, nylon spool 1-11 moves to the direction away from the first water inlet 1-1 of valve body 1 under the elastic force effect of antagonistic spring 1-12, the aperture of the second water inlet 1-2 of valve body 1 is reduced, the bypass water yield reduces, the temperature of the first water inlet 1-1 of valve body 1 is raise, when under the effect of antagonistic spring 1-12, during the position stability of nylon spool 1-11, the temperature of the first water inlet 1-1 of valve body 1 returns to setting value.
Wherein 1-14 is the rating curve of the first water inlet 1-1 of valve body 1 among Fig. 5,1-15 is the rating curve of the second water inlet 1-2 of valve body 1,1-16 is the rating curve of the first delivery port 1-3 of valve body 1, the relative discharge of the first delivery port 1-3 of valve body 1 equals the relative discharge sum of the second water inlet 1-2 of the first water inlet 1-1, the valve body 1 of valve body 1, and is constantly equal to 1.Axis of ordinates 1-17,1-18 represent the relative current value, and scope is 0-100%, and axis of abscissas 1-19 represents the relative opening degree of valve, and its excursion is 0-1, and 1-20 is 10% relative discharge.