KR101113347B1 - The active flow controller for heating system - Google Patents

Abstract

PURPOSE: An active fine flow controller is provided to possessively and appropriately control a flow rate of the hot water supplied to each room by up and down moving a compressed spring according to the flow rate and pressure of the hot water. CONSTITUTION: An active fine flow controller comprises a fine flow controller assembly(110), a spring support(120), a needle(130), a compressed spring(140) and a flow path guide member(150). The fine flow controller assembly is mounted at an opening formed on the top end of a feedwater tank. The spring support is installed between the fine flow controller assembly and an opening. The needle is installed in the spring support so that a needle body can move up and down. A fine flow controlling member projected to outside is formed in the needle body. The compressed spring is formed between a needle head and a spring support. The flow path guide member is installed inside the feedwater tank so that the needle can be inserted in. The flow path guide member is connected to a feedwater branch pipe. A plurality of balancing grooves(134) is formed in the fine flow controlling member body.

Description

Active Flow Control Controller {THE ACTIVE FLOW CONTROLLER FOR HEATING SYSTEM}

The present invention relates to a micro flow regulator used in a hot water heating system, and more particularly, to an active micro flow regulator that can actively control the flow rate of the heating hot water distributed to each room through the heating hot water distributor.

Recently, the system heating hot water distributor that can control the heating in each room is widely used in the central intensive heating unit such as district heating, but the heating piping is different due to the different area of each room. There is no choice but to concentrate the area of the room, and thus, a large area of the room has a problem that heating is very slow and heating imbalance occurs.

Thus, in order to solve the above problems, a micro flow rate control valve capable of appropriately adjusting the flow rate of hot water according to the heating pipe length of each room has been introduced and used. Hereinafter, with reference to the drawings will be described in detail for the conventional micro flow rate control valve.

1 is a view showing a conventional micro flow rate control valve, Figure 2 is a vertical cross-sectional view showing the internal structure of a conventional micro flow rate control valve.

As shown in Figure 1 and 2, the conventional micro flow rate control valve 10 is installed vertically on the heating pipe branched to each room at the lower side of the supply collection pipe or the return collection pipe of the heating hot water distributor. By operating the control handle 11 provided at one side, the heating hot water flow rate of each room is adjusted in response to the set value of the valve opening 12 calculated in inverse proportion to the resistance value according to the heating pipe length of each room.

Specifically, the micro flow rate control valve 10 has a shaft 13 which flows up and down, a piston 14 coupled to the upper portion of the shaft 13, and the opening and closing port extending downward from the shaft 13 And a valve seat 16 integrally formed at the lower end of the opening / closing opening 15 and a valve seat 17 formed between the valve gate 16 and the opening. The flow rate of the heating hot water is adjusted according to the degree of opening and closing. In this case, the opening and closing degree of the valve seat 17 is determined by a predetermined flow rate value according to the area of each room and the length of the heating pipe, and the control of this operation is the adjustment coupled to the upper portion of the shaft 13. Made through the handle 11.

However, the conventional micro flow rate control valve 10 as described above has the following problems.

First, the flow control conditions in the microfluidic control valve vary depending on the application site and the product, but in general, the opening degree is set in advance by calculating the resistance according to the length of the heating pipe at the design stage as described above (hereinafter, “TAB (Testing Adjusting and Balancing) value ”. Therefore, after a predetermined time has elapsed since the heating starts, the thermostat valves installed in each room are closed in sequence. Finally, if only one thermostat is opened, the hot water in the room is shorter than the preset flow rate. Not only does not flow properly at a time, proper heat exchange can be achieved, and noise is generated in a narrow flow rate control valve due to a faster flow rate.

In this case, the method of controlling the room temperature is to control the heating by measuring the room temperature or to control the flow of hot water intermittently based on the outlet temperature of the supply water, and the inversely proportional to the increase in temperature. It can be divided into proportional control to reduce hot water flow rate.

On the other hand, if the outdoor and heating conditions are the same, there is almost no difference in the amount of heat supplied to each household according to the control method of the indoor temperature, but there is a big difference in the power consumption for transporting hot water that supplies the heat required by each household. Therefore, in order to save heating energy, a method of more efficiently controlling the micro flow rate of hot water supplied to each room may be necessary.

In addition, the heating meter installed in the centralized central heating unit and used to impose a heating fee is divided into a heating calorimeter (accumulated calorimeter) and a heating flow meter (heating hot water meter). By measuring only the flow rate of hot water passing through each household, the heating cost is imposed, and the error of heating cost is likely to occur depending on the heating usage conditions.

Therefore, it is an urgent situation to develop a micro flow regulator that can accurately calculate the heating cost, reduce heating energy and remove fluid noise by appropriately adjusting the flow rate of hot water distributed to each room according to the heating load.

For reference, the above-described conventional micro flow rate control valve 10 is designed to be fully open and close of the valve as the range that can be controlled by the control handle 11 is 0 to 10 or more steps, but typically heating hot water The function of the micro flow rate control valve used in the distributor is not semi-permanent to completely block the heating water flow, but to solve the heating imbalance according to the length of each heating pipe. Therefore, the present invention distinguishes from the conventional micro flow control valve by using the designation of a micro flow regulator in consideration of the fact that the control range is designed to maintain a minimum flow rate of about 3% to about 30% of the heating hot water flow rate. It was made.

The present invention has been made to solve the above-mentioned problems, the hot water flow rate control that occurs according to the heating load of each room in the household in the central heating system of the central heating system installed with a heating hot water distributor designed integrally with the thermostat valve body It is an object of the present invention to provide an active microfluidic regulator capable of actively reducing imbalance and noise.

In addition, another object of the present invention is to reduce the power consumption of the central machine room circulation pump for supplying hot water for heating to each generation, and at the same time active micro flow regulator that can solve the problem of the fairness of the heating costs incurred in the apartment house using the heating flow meter To provide.

As a means for solving the above technical problem,

The present invention, the thermostat valve body is integrally formed on the top of the water collecting pipe, the micro flow controller of the heating hot water distributor is installed on the top of the thermostat valve body, the supply collection pipe, The micro flow regulator assembly is mounted to the opening formed in the upper end of the spring support between the micro flow regulator assembly and the opening, and the needle body penetrates through the spring support is installed to be able to move up and down, the needle body The supply water supply pipe inside the supply collection pipe so that the needle is formed between the needle is formed to protrude outwardly, the needle head formed on the upper end of the needle body and the spring support and the needle can be inserted It is installed in communication with, the inner diameter decreases toward the lower side, the fine flow rate Provided is an active micro flow regulator configured to include a flow guide member formed in a size corresponding to the outer diameter of the control unit.

In this case, it is preferable that a plurality of balancing grooves are formed in the micro flow rate control unit.

In addition, the heating hot water distributor body or the supply collection pipe is preferably made of an engineering plastic such as polybutylene (polybutylene), polyamide (polyamide).

According to the present invention, by combining the compression spring to the needle installed perpendicularly to the supply collection pipe to be able to flow up and down according to the pressure and flow rate of the heating hot water, the flow rate of the hot water supplied to each room corresponding to various heating environments It can be actively and properly controlled, and as a result, it is possible to reduce the power consumption of the circulation pump for hot water supply, to prevent unnecessary waste of heating energy, and also to solve the problem of equity of heating costs.

In addition, by forming a plurality of balancing grooves in the needle to minimize the contact area with the flow path guide member and prevent the left and right play to prevent noise generated when maintaining the minimum flow rate of the heating hot water.

1 is a view showing a conventional micro flow control valve,
Figure 2 is a vertical sectional view showing the internal structure of a conventional micro flow rate control valve,
3 is a view showing a thermostatic valve integrated heating hot water dispenser to which an active micro flow controller according to a preferred embodiment of the present invention is applied,
Figure 4 is an enlarged view showing the main portion of the thermostatic valve integrated heating hot water dispenser is applied to the active micro flow regulator according to a preferred embodiment of the present invention,
Figure 5 is a vertical cross-sectional view showing an active micro flow regulator according to a preferred embodiment of the present invention,
6 and 7 are vertical cross-sectional view showing the operation state at the time of full expansion and full compression of the active microfluidic regulator according to a preferred embodiment of the present invention according to the opening degree of the valve.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. In the drawings, parts irrelevant to the description are omitted in order to clearly describe the present invention, and like reference numerals designate like parts throughout the specification.

First of all, the present invention relates to an active microfluidic flow controller for applying to a thermostatic valve integrated heating hot water distributor installed in a centralized heating-type multi-unit house, and the overall configuration of the heating hot water distributor for a clear understanding of the present invention. First, a description will be made of the action.

3 is a view showing a thermostatic valve integrated heating hot water distributor to which the active micro flow rate regulator according to a preferred embodiment of the present invention, Figure 4 is an automatic micro flow rate regulator according to a preferred embodiment of the present invention Figure is an enlarged view of the main portion of the heating hot water distributor with a temperature control valve.

As shown in FIG. 3, the heating hot water distributor 200 to which the present invention is applied includes a supply water pipe 210, a supply water collection pipe 220, a supply water distribution pipe 230, a return water distribution pipe 240, It may be configured to include a return collecting pipe 250, a return pipe 260, a thermostatic valve 270 and the generation constant flow valve 280.

Specifically, the supply water pipe 210 is connected to a boiler (not shown) or district heating heat supply pipe (not shown) in the central machine room in order to supply hot water for heating to each generation of the apartment house.

The supply collection pipe 220 is configured to collect hot water supplied from the supply water pipe 210 and to distribute the supply water to the supply water supply pipe 230, and is connected to the supply water pipe 210 and fixed to the distributor stand 290. Is installed. In the present invention, the supply collection pipe 220 is manufactured in the form of a module using engineering plastics are integrally formed with the thermostatic valve 270 or the active microfluidic regulator 100, more specifically in FIG. As shown, the heating hot water distributor body 160 and the thermostatic valve body 271 has an integrated structure.

As described above, when the supply collection pipe 220 is modularized and integrally formed with the thermostatic valve body 271, it may be combined with a latching diaphragm valve and a globe valve to implement various functions in addition to hot water distribution. . In addition, the feed collection pipe 220 is made of engineering plastics such as polybutylene (polybutylene), polyamide (polyamide), etc., but also light and wear resistance and corrosion resistance not only can improve the durability but also significantly lower the product cost It is preferable to be able.

The supply water supply pipe 230 is configured to supply hot water collected in the supply water collection pipe 220 to each room (meaning a partitioned heating space, which is used in the same sense below) in the household, and the supply water collection pipe ( A plurality of 220 is installed at predetermined intervals.

The water recirculation engine 240 is configured to accommodate hot water that is supplied from the supply water engine 230 and returned after passing through each room, and is installed at predetermined intervals.

The return collection pipe 250 is installed in parallel with the supply collection pipe 220 on the distributor stand 290 to collect hot water returned through the return distribution pipe 240. In this case, the return collection pipe 250 is also manufactured in the form of a module using engineering plastics similarly to the supply collection pipe 220, and thus has the same shape as the active micro flow regulator 100 installed in the supply collection pipe 220. There is an advantage here.

The return pipe 260 is connected to the return collection pipe 250 in a configuration for recycling hot water returned through the return collection pipe 250 to the central machine room.

The thermostat valve 270 is usually installed in the return collection pipe 250 to automatically open and close the flow rate of hot water circulating each room. In this case, the thermostat valve 270 is a valve having a thermal or electric drive, and is configured with a valve controller and a temperature controller, the valve controller according to the set temperature input to each room through the temperature controller The opening and closing of the thermostat valve 270 is performed by operating the thermostat valve driver by receiving the temperature measured for each room. That is, when the temperature of a particular room reaches a set value, the thermostat valve 270 of the corresponding room is locked so that hot water is not circulated any more. The valve 270 is to be opened.

The generation constant flow valve 280 is The hot water flowing into each generation is installed in the return pipe 260 in a configuration for controlling not to exceed a predetermined flow rate. In this case, the generation constant flow valve 280 may be a manual type to control the flow rate by manually changing the opening area of the valve according to the differential pressure-flow diagram, and an automatic type to control the flow rate by automatically changing the opening area of the valve. In the present invention, both types can be used and are not particularly limited.

The heating hot water distributor 200 has been described above in detail. However, the heating hot water distributor to which the present invention can be applied is not limited to the above-described configuration, and it should be understood that it is also possible to add another configuration or remove the existing configuration as necessary.

Hereinafter, with reference to the drawings for an active micro flow controller according to a preferred embodiment of the present invention will be described in more detail.

5 is a vertical cross-sectional view showing an active micro flow controller according to a preferred embodiment of the present invention.

5, the active microfluidic regulator 100 according to the preferred embodiment of the present invention includes a microfluidic regulator assembly 110, a spring support 120, a needle 130, and a compression spring 140. And a flow path guide member 150.

First, the micro flow regulator assembly 110 is configured to adjust the flow rate required for each room according to the data of the set value (TAB value) calculated in consideration of the fluid resistance according to the length of the heating pipe micro flow regulator adapter ( 116 is installed in the heating hot water distributor body 160, that is, the opening 221 of the supply collection pipe 220.

Specifically, the microfluidic regulator assembly 110 is inserted into the microfluidic regulator adapter 116 and is installed on the regulator stem 112 and moves up and down, and formed on top of the regulator stem 112 and the regulator stem ( 112 is composed of a control handle 111 for adjusting the height. In this case, the regulator system 112 is fastened to the fixing cap 115 and the screw method coupled to the top of the micro-flow regulator adapter 116 to ensure the height and height of the support at the same time.

On the other hand, the outer circumferential portion of the regulator system 112 is coupled to the appropriate number of O-ring 113 to prevent the outflow of hot water with the fixing cap 115, and also, the rubber at the bottom of the regulator system 112 A shock absorbing material 114 is formed to alleviate the impact caused by contact when the needle 130 flows up and down.

Next, the spring support 120 is configured to support the needle 130 and the compression spring 140, the opening 221 including the heating hot water distributor body 160 and the micro flow regulator adapter 116 It is fixed between the) provides a function to maintain the tension of the compression spring (140). In this case, of course, the O-ring 121 may be installed at the coupling portion of the opening 221 and the microflow regulator adapter 116 to prevent the external outflow of hot water.

Subsequently, the needle 130 is installed to be able to flow vertically through the spring support 120 in a configuration for adjusting the micro flow rate of hot water supplied to each room. Specifically, the needle 130 is composed of a needle body 131 and a needle head 132, the needle body 131 is inserted into the flow guide member 150 through the spring support 120. The needle head 132 is positioned above the spring support 120 and is inserted into the flow guide member 150 of the needle body 131 according to the degree of compression and expansion of the compression spring 140. It will limit the depth.

On the other hand, the needle body 131 may have a fine flow rate adjustment part 133 protruded outward. The micro flow rate control unit 133 has a fluid passage area corresponding to the opening degree 12 (see FIG. 1) of the conventional micro flow rate control valve 10 according to the vertical flow of the needle body 131. The flow rate of the hot water is adjusted by generating a gap with the flow path guide member 150. For this purpose, the inner diameter of the flow path guide member 150 is narrowed toward the bottom to correspond to the outer diameter of the micro flow rate control unit 133. It is preferably formed to a degree.

When the micro flow rate control unit 133 is positioned above the flow path guide member 150, the flow path becomes wider, and the handle is calculated by the set value (TAB value) according to the heating pipe of each room. The adjusted amount of hot water flows. Thereafter, the thermostatic valves 270 of the rooms where heating is completed are closed, and the force pulling down the needle 130 exceeds the tension of the compression spring 140 as the hot water pressure and the flow rate of the last remaining room become faster. When the needle 130 is pulled downward as much as possible, that is, located in the narrowest portion of the flow path guide member 150, most of the flow path is closed so that only the minimum amount of hot water (about 30%) required for heating flows. do.

In this case, it is preferable that a plurality of balancing grooves 134 are formed in the micro flow rate adjusting unit 133. The balancing groove 134 is configured to prevent noise from coming into contact with the flow guide member 150 when the needle 130 flows up and down in a semicircle along the longitudinal direction of the micro flow rate control unit 133. It is formed in an intaglio form. That is, when the needle 130 is lowered, as the inner diameter of the flow path guide member 150 gradually narrows, the velocity of the fluid reaches its peak, and the fine flow rate adjusting part 133 makes an inner wall of the flow path guide member 150. Since the noise is generated by hitting the surface of the micro flow rate control unit 133 inwardly in a semicircle shape in the longitudinal direction to minimize the contact area and the hot water is concentrated in the intaglio portion to balance the needle 130 This prevents collisions and prevents fluid noise.

Meanwhile, in the present invention, the flow rate of the needle 130 is actively controlled by the compression spring 140. Hereinafter, the compression spring 140 will be described in detail.

The compression spring 140 is configured to actively control the flow rate of the hot water passing through the flow guide member 150 by restricting the vertical flow of the needle 130 constant, the needle head 132 and the spring It is installed between the support (120).

Specifically, the needle 130 is lowered when the pressure and flow rate of the hot water increases, in this state, the needle 130 does not rise unless the hot water flows back or the thermostat valve 270 is blocked. Most of can not be blocked, and thus the flow rate of hot water can not be actively controlled. Accordingly, in the present invention, as described above, the compression spring 140 is installed to allow the needle 130 to flow up and down appropriately according to the differential pressure and the flow rate of the supply side and the return side of the hot water. . In this case, the flow rate of the hot water required for each room is set in advance by adjusting the height of the regulator system 112 as described above, so that the rising height of the needle 130 is limited to the height of the regulator system 112. No excess hot water is supplied. In order to implement such a function, the tension of the compression spring 140 is appropriately calculated and applied in response to the resistance value of the needle 130, that is, the force to be lowered, which varies according to the differential pressure and the flow rate of the supply and return sides of the hot water. Should be.

Finally, the flow guide member 150 is installed in communication with the supply water supply pipe 230 inside the supply collection pipe 220 in a configuration for controlling the flow rate of hot water together with the needle 130. More specifically, the flow path seat 170 is fastened to the upper end of the supply water supply pipe 230, and the needle guide 130 is connected to the flow path guide member 150 after the flow path sheet 170 is mounted. If the fixed coupling to be inserted into the guide member 150, the installation is completed.

In this case, the inner circumferential surface of the flow path guide member 150 is formed in a streamline so that hot water flows smoothly, and more specifically, the inner diameter of the lower end is narrower than the inner diameter of the upper end as described above. The fluid passage area changes during the movement. In this configuration, the flow rate of the hot water passing therebetween is controlled while the interval between the microfluidic control unit 133 and the flow guide member 150 is changed according to the vertical flow of the needle 130.

The configuration of the active micro flow regulator 100 has been described above. Hereinafter will be described in detail with reference to the operation of the active micro-flow regulator 100 with reference to the drawings.

6 and 7 are vertical cross-sectional view showing the fully expanded and fully compressed operation state of the active micro flow regulator according to the preferred embodiment of the present invention according to the opening degree of the valve.

First, as shown in FIG. 6, when the control system 112 is raised by adjusting the adjusting handle 111 based on the required flow rate of hot water calculated according to the length of the heating pipe according to the area of each room in the household. The needle 130 rises due to the tension of the compression spring 140, and thus the gap between the micro flow rate control unit 133 and the flow guide member 150 is widened, thereby increasing the flow guide member 150. The flow rate of the warm water passing through increases.

Thereafter, when the heating of each room is completed and the thermostat 270 is sequentially closed, the hot water pressure and the flow rate of one or two remaining rooms are increased. In this state, when the warm water continuously lowers the resistance value of the needle 130 and exceeds the preset tension limit of the compression spring 140, the needle 130 descends as shown in FIG. 7. The distance from the flow guide member 150 is narrowed, and as a result, the amount of hot water passing through the flow guide member 150 is limited. On the contrary, when the thermostat valves 270 are opened and the pressure and flow rate of the hot water decrease, the pressure is reduced back to the initial set value by the restoring force of the compression spring 140 so that the flow rate of the hot water is kept constant.

As such, according to the present invention, there is no need for a separate operation or a mechanism for adjusting the fine flow rate of the heating hot water, and the heating energy can be effectively reduced because the control is automatically made according to the set flow rate according to the size of each room.

Preferred embodiments of the present invention have been described in detail above with reference to the drawings. The description of the present invention is intended for illustration, and it will be understood by those skilled in the art that the present invention may be easily modified in other specific forms without changing the technical spirit or essential features of the present invention.

Therefore, the scope of the present invention is represented by the following claims rather than the detailed description, and all changes or modifications derived from the meaning, scope, and equivalent concept of the claims are included in the scope of the present invention. Should be interpreted as

100: active micro flow regulator 110: micro flow regulator assembly
111: adjusting handle 112: adjusting system
113: O-ring 114: cushioning material
115: fixed cap 116: micro flow controller adapter
120: spring support 121: O-ring
130: needle 131: needle body
132: needle head 133: fine flow control unit
134: balancing groove 140: compression spring
150: euro guide member 160: heating hot water distributor body
170: Euro sheet 200: heating hot water distributor
210: supply water pipe 220: supply water collection pipe
221: opening 230: supply water supply pipe
240: water return pipe 250: water collection pipe
260: return pipe 270: automatic temperature control valve
271: thermostatic valve body 280: generation constant flow valve
290 Splitter Stand

Claims (3)

In the micro flow rate controller of the heating hot water distributor in which the thermostatic valve body is integrally formed on the top of the collecting and collecting pipe, and the retractable thermostatic valve is installed on the upper part of the thermostatic valve body.
A fine flow regulator assembly mounted at an opening formed at an upper end of the supply collection pipe;
A spring support disposed between the microfluidic regulator assembly and the opening;
A needle body penetrates the spring support and is installed to be movable upward and downward, and the needle body has a needle having a fine flow rate adjustment part protruding outward;
A compression spring installed between the needle head and the spring support formed at an upper end of the needle body; And
A flow guide member installed in communication with the supply water supply pipe in the supply collection pipe so that the needle can be inserted therein, the inner diameter of the supply collection pipe being reduced in size downward, and having a size corresponding to the outer diameter of the fine flow control unit;
Active micro flow controller configured to include. The method of claim 1,
Active micro flow controller, characterized in that a plurality of balancing grooves are formed in the micro flow control unit body. The method according to claim 1 or 2,
The supply collection pipe is an active fine flow regulator, characterized in that made of engineering plastics.

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