KR101421254B1 - District heating three-way differential pressure control valve for heating and hot water supply for proportional control based on amount of heating and hot water - Google Patents

Abstract

The present invention relates to a three-way differential pressure regulating valve which is proportionally controllable corresponding to the usage amount of heating and hot water supply in district heating, more particularly, to a three-way differential pressure regulating valve which is proportionally controllable corresponding to the usage amount of heating and hot water supply in district heating in order for quickly performing the change of a flow path of a heat source by the pressure change in a main water supply pipe through controlling the direction and amount of the heat source supplied for heating and hot water supply as the valve being mechanically activated by the pressure change in the main water where pressure drops when a user demands for hot water supply.

Description

{DISTRICT HEATING THREE-WAY DIFFERENTIAL PRESSURE CONTROL VALVE FOR HEATING AND HOT WATER SUPPLY FOR PROPORTIONAL CONTROL BASED ON AMOUNT OF HEATING AND HOT WATER}

[0001] The present invention relates to a three-way heating hot water supply differential pressure regulating valve for local heating capable of proportional control according to the amount of heating and hot water supply, and more particularly, The present invention relates to a three-way heating hot water supply differential pressure regulating valve for local heating capable of performing proportional control according to the amount of heating and hot water supply so that the direction and amount of the heat source to be controlled can be rapidly changed according to the pressure change of the heat source.

In general, the flow control valve has one inlet and two outlet, which is also called a 3-way valve in that the direction of the outlet changes each time it is used.

However, it can be seen that most of the three-way valves installed in the normal heating system adopt the electronic flow path changing method. In other words, since the electromagnetic type which operates magnetically by the power source to which the diaphragm is operated to change the flow direction is employed, conventionally, not only the manufacturing cost is high but also the trouble is frequent, the power consumption is high, Which is the reason for this increase.

In order to solve such a problem, a mechanically operated three-way differential pressure regulating valve was filed as a domestic registered utility model 20-0337486, domestic patent publications 10-2004-0037808 and 10-2005-0067597.

However, such a three-way differential pressure regulating valve can change the flow rate only in the A direction or the B direction, and the flow rate equally flows in the A direction and the B direction so that the pressure equilibrates, or the flow is changed in the other direction There is a problem in that it is difficult to control or change the flow rate.

Domestic registered utility model 20-0337486 Korean Patent Laid-Open No. 10-2004-0037808 Korean Patent Laid-Open No. 10-2005-0067597

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a heat source apparatus and a heat source apparatus which are mechanically operated in accordance with a time- The present invention provides a three-way heating hot water supply differential pressure regulating valve for local heating, which is proportional to the amount of heating and hot water supply,

According to an aspect of the present invention,

A control valve which is supplied with a district heating supply water and installed in a hot water supply pipe and a heating pipe on a customer side to supply and control district heating supply water to a hot water supply pipe and a heating pipe on a customer side, Wherein the first fluid inlet and the second fluid outlet are formed in a "ten-sided " shape so as to have a second fluid outlet and a guide hole, and A fluid, which is district heating supply water supplied to the first fluid inlet, 2 fluid outlet; a front body having a first fastening plate at one end of which the guide hole is formed; An intermediate body formed in a cylindrical hollow shape so as to have the same diameter as the front body and having a second fastening plate at one end thereof coupled to the first fastening plate of the front body and a third fastening plate at the other end; A fourth fastening plate which is formed in a hollow shape so as to have a diameter larger than that of the intermediate body and is formed into a cylindrical shape having an opened end and is coupled to the third fastening plate of the intermediate body at one end, A rear body formed with a second fluid inlet through which fluid is introduced; A piston moving left and right in the front body to regulate the flow of fluid A; A piston moving member located in the intermediate body and connected to the piston to move the piston left and right; And a piston disposed in the rear body and connected to the piston moving member and applying pressure to the piston moving member in accordance with the pressure of the B fluid flowing into the rear body to adjust the amount of movement of the piston to be proportional to the pressure of the B fluid And a pressure member which is provided at a lower portion of the pressure member.

Here, the piston is formed with a downwardly inclined surface at one end so as to discharge the A fluid to the first fluid outlet, a curved through-flow passage formed at the center to discharge the A fluid to the second fluid outlet, .

Here, a disk-shaped key having a piston guide hole formed at a central portion thereof to fix the piston between the first fastening plate of the front body and the second fastening plate of the intermediate body and to block the movement of the step of the piston, Is inserted and fixed.

Here, the piston may include a shaft having one end coupled to the piston to move the piston, a keyway formed at the other end, and a stopper at the other end; A compression spring installed on the outer side of the shaft to provide elasticity; A coupling plate installed between the third fastening plate of the intermediate body and the fourth fastening plate of the rear body to fix the shaft and having a shaft guide hole at the center thereof and formed in a disk shape; A compression spring guide installed between the connection plate and the shaft to fix the compression spring; And a compression spring tension adjusting washer installed between the compression spring guide and the connecting plate to adjust the tension of the compression spring.

Here, the pressure member may include a starting spring installed outside the other end of the shaft; A starting spring guide installed at both ends of the starting spring at the shaft for fixing the starting spring, one end fixed to the connecting plate and the other end inserted into the key groove of the shaft; A guide bar provided between the starting spring guide and restricting a maximum displacement of the starting spring by limiting a moving range of the starting spring guide on the other side; A pressure plate inserted and fixed in a key groove of the shaft and moved by a pressure of a B fluid flowing into the rear body and compressing and expanding the starting spring to move a shaft of the piston moving member to thereby control a moving amount of the piston; And a starting spring tension adjusting washer installed between the starting spring guide and the pressure plate to adjust the tension of the starting spring.

Here, the above-mentioned three-way proportional control differential pressure valve maintains the compression spring of the piston moving member in a no-load state when the maximum pressure of the B fluid acts on the pressure member (maximum heating) The compressed state is maintained so that the A fluid is supplied to the second fluid outlet through the first fluid inlet.

Here, when the minimum pressure of the B fluid acts on the pressure member (maximum hot water supply), the compression spring of the piston moving member maintains the maximum compression state, and the start spring So that the A fluid is supplied to the first fluid outlet through the first fluid inlet.

Here, the three-way proportional control differential pressure valve may be configured such that, when the pressure of the fluid B is lowered to the pressure member in accordance with the amount of hot water supply, the piston starts to rotate by the starting spring of the pressure member, A part of the fluid A is discharged to the first fluid outlet through the first fluid inlet and the pressure by the fluid A is generated in the piston by the downward inclined surface of the piston, The compression spring of the piston moving member is compressed by the displacement of the piston and the spring tension is generated in proportion to the compression displacement of the compression spring to generate the pressure of the A fluid acting on the piston and the spring tension of the compression spring When the resultant force becomes an equilibrium state with the pressure of the B fluid acting on the pressure plate of the pressure member, The position of the stone is fixed.

According to the present invention, there is provided a three-way heating hot water supply differential pressure regulating valve for proportional control according to the amount of heating and hot water supply according to the present invention, which is mechanically operated in response to a user's request for hot water supply, The flow direction of the heat source can be quickly changed according to the change in the pressure of the water.

FIG. 1 is a perspective view of a three-way heating hot water supply differential pressure regulating valve for district heating, which can be proportionally controlled according to the amount of heating and hot water supply according to the present invention.
FIG. 2 is a side cross-sectional view showing a three-way heating hot water supply differential pressure regulating valve for local heating capable of proportional control according to the amount of heating and hot water supply according to the present invention.
FIG. 3 is a schematic view showing a state in which a 3-way heating hot water supply differential pressure control valve for proportional control according to the amount of heating and hot water supply according to the present invention is installed in a district heating pipe.
4 to 8 are explanatory views for explaining the operation of the three-way heating hot water supply differential pressure regulating valve for district heating, which can be proportionally controlled according to the amount of heating and hot water usage according to the present invention.

Hereinafter, the construction of a three-way heating hot water supply differential pressure regulating valve for local heating capable of proportional control according to the amount of heating and hot water supply according to the present invention will be described in detail with reference to the accompanying drawings.

In the following description of the present invention, detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear. The following terms are defined in consideration of the functions of the present invention, and may be changed according to the intentions or customs of the user, the operator, and the like. Therefore, the definition should be based on the contents throughout this specification.

FIG. 1 is a perspective view showing a three-way heating hot water supply differential pressure regulating valve for district heating, which can be proportionally controlled according to the amount of heating and hot water supply according to the present invention, FIG. 2 is a perspective view FIG. 3 is a schematic view showing a state in which a 3-way heating hot water supply differential pressure control valve for proportional control according to the amount of heating and hot water supply according to the present invention is installed in a district heating pipe It is an overview.

1 to 3, a local heating three-way hot water supply differential pressure control valve 100 according to the present invention has a front body 110, an intermediate body 120, A rear body 130, a piston 140, a piston moving member 150, and a pressure member 160.

First, the front body 110 is provided with a "ten" hollow interior so as to have a first fluid inlet 111, a first fluid outlet 113, a second fluid outlet 115 and a guide hole 117, And A fluid serving as district heating supply water supplied to the first fluid inlet 111 is supplied to the first fluid outlet 113 and the second fluid outlet 115 and the guide hole 117 is formed And a first fastening plate 119 is provided at one end.

The intermediate body 120 is formed in a cylindrical hollow shape so as to have the same diameter as the front body 110 and has a second fastening plate 121 coupled to the first fastening plate 119 of the front body 110 at one end thereof, And a third fastening plate 123 is provided at the other end.

The rear body 130 is hollow and has a larger diameter than the middle body 120. The rear body 130 is formed in a cylindrical shape having an open end and has a third fastening plate 123 And a second fluid inlet 133 into which the B fluid flows is formed at the other end.

In addition, the piston 140 is moved to the left and right in the front body 110 to regulate the flow path of the A fluid. The piston 140 has a downwardly inclined surface 141 formed at one end thereof to discharge the A fluid to the first fluid outlet 113 of the front body 110 and the A fluid to the second fluid of the front body 110 A curved through-flow passage 143 is formed at a central portion to be discharged to the outlet 115, and a step 145 is formed at the other end. The piston 140 is fixed between the first fastening plate 119 of the front body 110 and the second fastening plate 121 of the intermediate body 120 and the movement of the step of the piston 140 Shaped key 147 in which a piston guide hole 117 is formed at a central portion thereof is inserted and fixed.

The piston moving member 150 includes a shaft 151, a compression spring 153, a connecting plate 155, a compression spring guide 157, and a compression spring tension adjusting washer 159.

The shaft 151 is installed through the intermediate body 120 and the rear body 130 and has one end coupled to the piston 140 to move the piston 140 and a key groove 151a formed at the other end, And a stopper 151b is provided at an end thereof.

The compression spring 153 is installed inside the intermediate body 120 on the outer side of the shaft 151 to provide elasticity.

The connecting plate 155 is installed between the third fastening plate 123 of the intermediate body 120 and the fourth fastening plate 141 of the rear body 130 so as to fix the shaft 151, Holes 117 are formed, and are formed in a disc shape.

The compression spring guide 157 is formed in a pair and is provided between the coupling plate 155 and the shaft 151 in the intermediate body 120 to fix the compression spring 153.

A plurality of compression spring tension adjusting washers 159 are provided between the compression spring guide 157 and the connecting plate 155 to adjust the tension of the compression spring 153.

The pressure member 160 includes a starting spring 161, a starting spring guide 163, a guide bar 165, a pressure plate 167 and a washer 169 for adjusting the starting spring tension.

The starter spring 161 is provided inside the rear body 130 in the form of a coil spring, outside the other end of the shaft 151.

A pair of starting spring guides 163 are provided at both ends of the starting spring 161 in the shaft 151 so as to fix the starting spring 161 in the rear body 130, And the other side is fixedly inserted into the key groove 151a of the shaft 151.

The guide bar 165 is disposed between the starting spring guides 163 in the rear body 130 to restrict the maximum displacement of the starting spring 161 by limiting the moving range of the starting spring guide 163 on the other side.

The pressure plate 167 is formed in a disc shape and is inserted and fixed into the key groove 151a of the shaft 151 in the rear body 130 and is moved by the pressure of the fluid B flowing into the rear body 130, The spring 161 is compressed and extended to move the shaft 151 of the piston moving member 150 to thereby control the amount of movement of the piston 140. [

The starting spring tension adjusting washer 169 is installed between the starting spring guide 163 and the pressure plate 167 to adjust the tension of the starting spring 161.

Hereinafter, the operation of the three-way heating hot water supply differential pressure regulating valve for local heating capable of proportional control according to the amount of heating and hot water supply according to the present invention will be described in detail with reference to the accompanying drawings.

4 to 8 are explanatory views for explaining the operation of the three-way heating hot water supply differential pressure regulating valve for district heating, which can be proportionally controlled according to the amount of heating and hot water usage according to the present invention.

"Initial state - heating only"

4 is a view showing the initial state before the operation of the valve. When A fluid input from the first fluid inlet 111 of the front body 110 flows into the second fluid inlet 133 of the rear body 130, Is supplied only to the second fluid inlet 133 by the maximum pressure of the B fluid supplied to the second fluid inlet 133. [

That is, in the initial state, when the fluid B flows into the second fluid inlet 133 of the rear body 130, the fluid B acts on the pressure plate 167 of the pressure member 160, 167 and the rear body 130. The pressure in the space between the front body 167 and the rear body 130 is adjusted. At this time, the piston 140 is fixed to the front body 110 in the initial position by the key 147 (i.e., the position where the A fluid is discharged to the second fluid outlet through the first fluid inlet) The compression spring 153 of the member 150 maintains a no-load state. The starting spring 161 of the pressure member 160 is in an equilibrium state with the pressure of the B fluid acting on the pressure plate 167.

Accordingly, in the initial state, since the first fluid outlet 113 is blocked by the piston 140 and only the second fluid outlet 115 is opened, all of the fluid A is supplied to the second fluid outlet 115 to be used for heating do.

On the other hand, the spring tension by the starting spring 161 is applied to the B fluid acting on the pressure plate 167 in the state in which the first fluid outlet 113 is shut off and the piston 140 is not subjected to the axial axial pressure by the A fluid And acts to counterbalance the force inside the piston 140. As shown in Fig.

The starting spring 161 affects the driving of the piston 140 only until the maximum displacement is restrained by the starting spring guide 163 and is limited to the constrained displacement, And does not act on the piston 140.

"Using hot water"

5 to 7, when the pressure of the fluid of the fluid B begins to drop by using the hot water, the spring force of the starting spring 161, which has the spring tension equal to the maximum pressure of the fluid B, Direction The first movement begins.

When the piston 140 starts to move in the axial direction of the piston, the flow path of the A fluid input to the first fluid inlet 111 by the downward inclined surface 141 of the piston 140 reaches the first fluid outlet 113, And the pressure by the fluid A acts on the piston 140. As shown in Fig.

When the piston 140 moves by the pressure, the compression spring 153 of the piston moving member 150 is compressed by the displacement of the piston 140 and spring tension is generated in proportion to the compression displacement of the compression spring 153 do.

When the resultant force of the pressure of the fluid A acting on the piston 140 and the spring tension of the compression spring 153 is balanced with the pressure of the fluid B acting on the pressure plate 167, And the flow path of the branched A fluid is fixed.

The flow path of the A fluid input to the first fluid inlet 111 is shifted to the downward inclined surface 141 and the through flow path 143 on the left side of the piston 140 in proportion to the pressure difference of the B fluid acting on the pressure plate 167 And distributed and discharged to the first fluid outlet 113 and the second fluid outlet 115, respectively.

On the other hand, as the pressure of the B fluid acting on the pressure plate 167 decreases, the pressure applied to the pressure plate 167 decreases and the piston 140 moves to the right and moves to the maximum displacement fixed by the key 147.

8, a key 147 fixed on the piston 140 when the magnitude of the pressure of the B fluid acting on the pressure plate 167 becomes the minimum, the step 147 of the front body 110 The through fluid passage 143 of the piston 2 is blocked by the front body 1 and the fluid A which is input from the first fluid inlet 111 is blocked by the total amount 1 fluid outlet 113. In this way,

Conversely, when the pressure of the B fluid acting on the pressure plate 167 begins to increase at the minimum, the pressure applied to the pressure plate 167 rises and the piston 140 starts to move in the left direction. At this time, the piston 140 is movable by the fixed displacement by the key 3. [

As the magnitude of the pressure of the B fluid acting on the pressure plate 167 increases, the position of the piston 140 moves proportionally to the left in the drawing, and the flow of the A fluid, which is input to the first fluid inlet 111, Is distributed to the downward sloping surface 141 and the through passage 143 on the left side of the piston 140 in proportion to the pressure difference of the B fluid acting on the pressure plate 167 and flows through the first fluid outlet 113 and the second fluid outlet 115 And is discharged.

The transfer of the piston 140 is continued until the pressure of the fluid B reaches the maximum, and the flow of the fluid A is continuously controlled. When the pressure of the fluid B is maximized, the position of the piston 140 The fluid flow of the A fluid returns to the initial state described.

At this time, the starting spring 161 is compressed to the initial compression displacement in the initial state, and the tension of the spring due to the compression displacement and the pressure of the B fluid acting on the pressure plate 167 are in an equilibrium state, Lt; RTI ID = 0.0 > 140 < / RTI >

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. It is to be understood, however, that the invention is not to be limited to the specific forms thereof, which are to be considered as being limited to the specific embodiments, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims. .

The present invention can be applied not only to district heating facilities but also to general boilers, heating hot water supply facilities, and the like.

110: front body 120: middle body
130: rear body 140: piston
150: piston moving member 160: pressure member

Claims (8)

A control valve provided in the hot water supply pipe and the heating pipe on the customer side for supplying the district heating supply water to the hot water supply pipe and the heating pipe on the customer side,
A first fluid inlet, a first fluid outlet, a second fluid outlet, and a guide hole, the interior being formed in a "ten" A front body for supplying a fluid to the first fluid outlet and the second fluid outlet, and having a first fastening plate at one end formed with the guide hole;
An intermediate body formed in a cylindrical hollow shape so as to have the same diameter as the front body and having a second fastening plate at one end thereof coupled to the first fastening plate of the front body and a third fastening plate at the other end;
A fourth fastening plate which is formed in a hollow shape so as to have a diameter larger than that of the intermediate body and is formed into a cylindrical shape having an opened end and is coupled to the third fastening plate of the intermediate body at one end, A rear body formed with a second fluid inlet through which fluid is introduced;
A downward sloping surface is formed at one end to move the A fluid to the first fluid outlet so as to control the flow path of the A fluid. The A fluid is curved in a central portion to discharge the A fluid to the second fluid outlet, A piston having a through passage formed at one end thereof and a step formed at the other end thereof;
A piston moving member located in the intermediate body and connected to the piston to move the piston left and right; And
The piston moving member is connected to the piston moving member to apply pressure to the piston moving member in accordance with the pressure of the B fluid flowing into the rear body to adjust the moving amount of the piston to be proportional to the pressure of the B fluid Wherein the pressure regulating valve is a three-way heating hot water supply pressure regulating valve for local heating which can be controlled in proportion to the amount of heating and hot water supply. delete The method according to claim 1,
Between the first fastening plate of the front body and the second fastening plate of the intermediate body,
Wherein a disc-shaped key having a piston guide hole formed at a central portion thereof is inserted and fixed so as to fix the piston and block the movement of the step of the piston. The three-directional heating for proportional control according to the amount of heating and hot water supply Hot water differential pressure regulating valve. The method according to claim 1,
Wherein the piston-
A shaft having one end coupled to the piston to move the piston, a key groove formed at the other end, and a stopper at the other end;
A compression spring installed on the outer side of the shaft to provide elasticity;
A coupling plate installed between the third fastening plate of the intermediate body and the fourth fastening plate of the rear body to fix the shaft and having a shaft guide hole at the center thereof and formed in a disk shape;
A compression spring guide installed between the connection plate and the shaft to fix the compression spring; And
And a compression spring tension adjusting washer installed between the compression spring guide and the connecting plate to adjust the tension of the compression spring. The three-way heating hot water pressure differential pressure regulating valve for proportional control according to the amount of heating and hot water supply . 5. The method of claim 4,
The pressure member
A starter spring installed outside the other end of the shaft;
A starting spring guide installed at both ends of the starting spring at the shaft for fixing the starting spring, one end fixed to the connecting plate and the other end inserted into the key groove of the shaft;
A guide bar provided between the starting spring guide and restricting a maximum displacement of the starting spring by limiting a moving range of the starting spring guide on the other side;
A pressure plate inserted and fixed in a key groove of the shaft and moved by a pressure of a B fluid flowing into the rear body and compressing and expanding the starting spring to move a shaft of the piston moving member to thereby control a moving amount of the piston; And
And a starting spring tension adjusting washer provided between the starting spring guide and the pressure plate to adjust the tension of the starting spring. The three-way heating hot water supply differential pressure regulating valve for proportional control according to the amount of heating and hot water supply. 6. The method of claim 5,
The three-way proportional control differential pressure valve includes:
When the maximum pressure of the B fluid acts on the pressure member (maximum heating), the compression spring of the piston moving member maintains the no-load state and the starting spring of the pressure member maintains the maximum compression state, And the second fluid outlet is supplied through the fluid inlet to the second fluid outlet. The three-way heating hot water supply differential pressure regulating valve for proportional control according to the amount of heating and hot water supply. 6. The method of claim 5,
The three-way proportional control differential pressure valve includes:
When the minimum pressure of the B fluid acts on the pressure member (maximum hot water supply), the compression spring of the piston moving member maintains the maximum compression state, the starting spring of the pressure member maintains the no- And the first fluid outlet is supplied through the fluid inlet to the first fluid outlet. The three-way heating hot water supply differential pressure regulating valve for proportional control according to the amount of heating and hot water supply. 6. The method of claim 5,
The three-way proportional control differential pressure valve includes:
When the pressure of the fluid of the fluid B is lowered to the pressure member according to the amount of hot water supply, the piston is moved in the axial direction by the starting spring of the pressure member having the tension equal to the maximum pressure of the fluid of the fluid B, A portion of the fluid A is discharged to the first fluid outlet through the first fluid inlet port, a pressure due to the fluid A is generated in the piston and the piston is moved again, so that the compression spring of the piston moving member moves the piston And a spring tension is generated in proportion to the compression displacement of the compression spring, so that the resultant force of the pressure of the A fluid acting on the piston and the spring tension of the compression spring by the compression spring acts on the pressure plate of the pressure member, And the position of the piston is fixed when the piston is in an equilibrium state with the pressure of the piston 3-way heating hot water pressure control valve for district heating that can be proportional controlled according to heating and hot water usage.

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