KR200209980Y1 - Condensed water automatic drain valve - Google Patents

Abstract

The present invention relates to an automatic condensate drain valve, which is connected to a steam line directed to a heat receiving unit to automatically discharge condensate below a set temperature, and includes a condensate inlet and at least one condensate outlet communicating with the condensate inlet through an internal flow path. A body part; A seat member fixed to an inner circumferential surface of the inner flow path in the body portion and providing a flow path; It is characterized by including an opening and closing means for operating by the temperature of the fruit flowing into the inlet to seal or open the sheet member.

The automatic condensate drain valve of the present invention made as described above automatically discharges the condensed water cooled below the set temperature by heat exchange with the outside in the steam line by the shape memory spring in the valve, thereby reducing the temperature of the fruit supplied to the heat receiving portion. It can be maintained at the set value, so that the temperature of the heat receiving portion is kept constant, thereby making it reliable. In particular, since the configuration of the valve is simple, semi-permanent, and detects the temperature of condensate and operates itself according to the set temperature, it is easy to control and maximizes energy efficiency, thereby saving energy.

Description

Condensed water automatic drain valve

The present invention relates to an automatic condensate drain valve applied to various steam lines. More specifically, the present invention is installed in a steam pipe line directed to a heat receiving portion, and when the flow fruit in the pipeline is lower than the temperature set outside. A condensate automatic drain valve configured to automatically drain fruit.

For example, in various steam lines, such as a radiator, the fruit which flows in the flow path of a steam pipe condenses through heat exchange with the outside. The condensate is returned to the return tank, but some of the condensate remains in the flow path, causing a problem of lowering thermal efficiency by disturbing the flow of the fruit. In order to solve this problem, it was necessary to install the air vent or steam trap, etc. to remove the condensate periodically or aperiodically.

The present invention has been made to solve the above problems, and the condensate cooled below the set temperature through heat exchange with the outside in the steam line is automatically discharged by the shape memory spring in the valve, thereby setting the temperature of the fruit supplied to the heat receiving portion. As the temperature of the heat receiving part is kept constant, in particular, the configuration of the valve is simple, semi-permanent, and detects the temperature of the condensate and operates itself according to the set temperature so that the condensate automatic drain valve can be easily controlled and energy-saving. The purpose is to provide.

1 is a cross-sectional view showing a structure of an automatic condensate drain valve according to an embodiment of the present invention.

2 and 3 are views showing a state in which a closed cap is coupled to the automatic condensate drain valve according to an embodiment of the present invention.

Figure 4 is a view showing for explaining an example of the use of the automatic condensate drain valve according to an embodiment of the present invention.

<Explanation of symbols for the main parts of the drawings>

9: Drain valve 10: Condensate inlet

12: first outlet 14: second outlet

16: Airtight cap 18: Internal flow

20: body 22: seat member

24: Blocking member 26: Shaped spring

28: support spring 30: first rod

32: knob 34: adjustment shaft

36: male thread 38: female thread

40: second rod 42: upper guide portion

44: lower guide portion 46: the first sequence portion

48: second heat receiving portion 50: return tank

52: steam line 54: return line

56: Guide hole 58: Drainage temperature control knob

60: through hole 62: spring mounting groove

In order to achieve the above object, the present invention is connected to a steam line directed to the heat receiving unit to automatically discharge condensate below a set temperature, and a condensate inlet and at least one condensate outlet communicating with the condensate inlet are formed through an internal flow path. A body part; A seat member fixed to an inner circumferential surface of the inner flow path in the body portion and providing a flow path; It is characterized in that it comprises an opening and closing means for operating by the temperature of the fruit flowing into the condensate inlet to seal or open the sheet member.

In addition, the opening and closing means, the blocking member which is in close contact with the sheet member to block the flow path and is separated from the sheet member to open the flow path; A shape memory spring for elastically supporting the blocking member toward the sheet member by operating in direct contact with the fruit introduced through the condensate inlet; It characterized in that it comprises a support spring which is installed on the opposite side of the shape memory spring with the blocking member therebetween to elastically support the blocking member to the shape memory spring side.

In addition, a vertical first rod extending through the center of the shape memory spring is fixed to one side of the blocking member, and the first rod is moved in the longitudinal direction in contact with the upper end of the first rod outside the body. In addition to the shape memory spring is characterized by further comprising a drainage temperature adjustment knob for controlling the drainage temperature by supporting the blocking member toward the seat member side.

In addition, the drainage temperature adjustment knob is made of a handle, and a control shaft fixed to the handle and extending into the body portion and meets the first rod end, to rotate the handle to move the first rod in the longitudinal direction A male screw thread is formed on the adjusting shaft, and a female screw thread coupled to the male screw thread is provided in the body portion.

In addition, a second vertical rod penetrating the center of the support spring is fixed to the other side of the blocking member, and the upper and lower side guide parts for guiding the longitudinal movement of the first rod and the second rod are further provided in the body portion. It is characterized by.

In addition, the condensate outlet is composed of the first outlet and the second outlet which forms a right angle to each other, the selected one outlet is characterized in that the sealing cap is sealed.

In addition, it characterized in that each of the spring installation grooves are inserted into the end of the shape memory spring on the upper surface of the blocking member and the lower side of the upper guide portion for the operational stability of the shape memory spring.

Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.

Basically, the automatic drain valve according to the present invention is configured to block or open the flow passage between the inlet and the outlet by the action of the shape memory spring, and is configured to operate according to the temperature of the fruit introduced into the inlet.

1 is a view schematically illustrating a structure of an automatic condensate drain valve according to an embodiment of the present invention.

Referring to the drawings, the automatic condensate drain valve according to the present embodiment, the body portion 20 is formed with one condensate inlet 10 and two condensate outlets 12, 14, and the body portion 20 It is configured to include a flow path opening and closing means provided in the internal flow passage 18 to block or open the internal flow passage.

The body portion 20 takes the form of a pipe, and the condensate outlet has a first outlet 12 and a second outlet 14 perpendicular to the first outlet 12. The lower guide portion 44 described later is integrally formed on the inner surface of the first outlet 12. The lower guide portion 44 has a substantially cylindrical shape and extends upwardly to receive and support an end of the second rod 40 therein.

Male threads are formed on the outer circumferential surfaces of the condensate inlet 10, the first outlet 12, and the second outlet 14, respectively. The male screw is connected to an external pipeline, the condensate inlet 10 is connected to the steam line (52 of FIG. 4) and the first outlet 12 or the second outlet 14 is a return line (54 of FIG. 4). ) Can be connected.

On the other hand, the first outlet 12 and the second outlet 14 is selectively closed by a closure cap (16). If necessary, both the first outlet 12 and the second outlet 14 may be open, but since they do not need to be opened in reality, the outlet on the opposite side of the side that is easy to assemble with an external pipeline may be used. It is sealed by the sealing cap (16).

Thus forming the outlets 12, 14 in two places is for easy assembly of the valve to the pipeline. In reality, in the conventional valve, in order to connect the valve to the pipeline, in many cases, an elbow is required because the position between the valve and the pipeline is not appropriate. However, in the present embodiment, since the outlet is formed at right angles, the elbow is used even in the above conditions. Not required.

The outer diameters of the first outlet 12 and the second outlet 14 are processed in the same manner so that any outlet can be sealed with one sealing cap 16.

On the other hand, in the body portion 20, the upper guide portion 42 is provided on the opposite side in the drawing of the first outlet 12. The upper guide portion 42 is a member formed with a guide hole 56 in the center and fixed to the inner circumferential surface of the body portion 20. The guide hole 56 completely penetrates through the upper guide part 42, and accommodates the upper end of the first rod 30 to be described later in the lower part and the adjustment shaft 34 in the upper part. 30) and the control shaft 34 to meet.

The male screw thread 36 is formed on the adjusting shaft 34, and a female screw thread 38 is formed on the inner circumferential surface of the guide hole 56 for receiving the adjusting shaft. In addition, the lower end of the control shaft 34 is rounded finish so that friction does not occur in the contact portion with the first rod (30). That is, even if the adjusting shaft 34 rotates, the rotational force of the adjusting shaft 34 is not transmitted to the first rod 30.

Accordingly, when the control shaft 34 is rotated axially, the control shaft 34 can be stably lifted and the drainage temperature can be adjusted by adjusting the position of the first rod 30.

Opening and closing means for blocking or opening the internal flow path 18 in the body portion 20 is fixed to the inner circumferential surface of the body portion 20, the through-hole 60 is formed in the center of the loop type And a blocking member 24 for selectively blocking the through hole 60 of the sheet member 22.

The seat member 22 is a valve seat installed in a conventional valve mechanism, and the inner peripheral surface is inclined toward the valve seat so that the blocking member 24 can be easily inserted into and separated from the through hole 60. In some embodiments, a rubber packing member (not shown) may be installed on the inner circumferential surface of the through hole 60.

In addition, spring mounting grooves 62 are formed on the upper surface of the blocking member 24 and the opposing surface of the upper guide part 42, respectively. The spring installation groove 62 is a groove in which the upper end and the lower end of the shape memory spring 26 rest, and serves to stably support the shape memory spring 26 during the lifting and lowering motion of the blocking member 24.

In addition, the inner bottom surface of the spring installation groove 62 may be inclined in the circumferential direction so that the end portion of the shape memory spring taking the form of a coil may be polished and installed as it is.

The blocking member 24 takes the form of a disk and the outer circumferential surface is inclined corresponding to the inner circumferential surface of the through hole 60. As described above, the blocking member 24 is inserted into the through hole 60 to block the internal flow path 18. The first rod 30 is vertically provided on the upper surface thereof, and the second rod is disposed on the lower surface thereof. 40 is fixed vertically.

The first rod 30 and the second rod 40 are fixed to the upper and lower surfaces of the blocking member 24 to guide the retraction movement of the blocking member 24 with respect to the sheet member 22. To this end, the upper end of the first rod 30 is inserted into the guide hole 56 and guided to the inner circumferential surface of the guide hole 56. In addition, the end of the second rod 40 is supported in contact with the inner peripheral surface of the cylindrical lower guide portion 44.

As a result, the first rod 30 and the second rod 40 are supported by the guide parts 42 and 44, respectively, to guide the blocking member 24 to move stably.

Meanwhile, a shape memory spring 26 is installed between the blocking member 24 and the upper guide part 42. The shape memory spring 26 surrounds the first rod 30 as a coil spring, and both ends of the shape memory spring 26 contact the upper surface of the upper guide part 42 and the blocking member 24 to provide an elastic force. That is, to provide a pressing force for moving the blocking member 24 downward.

The shape memory spring 26 is a known spring made to have an elastic force set within a predetermined temperature range. The operation characteristic of the shape memory spring is determined in the manufacturing process of the spring, and in this embodiment, the elastic force is increased at a temperature of 50 ° C. to 95 ° C. or higher, which is a set temperature, so that the shape memory spring 26 has a blocking member ( Push 24) to the bottom to adjust the drainage temperature.

On the other hand, a support spring 28 is installed between the lower guide portion 44 and the blocking member 24. The support spring 28 includes a second rod 40 therein as a generally known coil spring, and is provided with a pressing force for pushing the blocking member 24 upward with respect to the lower guide portion 44.

As a result, the blocking member 24 is elastically supported on the upper and lower surfaces by the shape memory spring 26 and the support spring 28, and the elastic force is moved to a smaller side.

The elastic force relationship between the shape memory spring 26 and the support spring 28 is such that the elastic force of the shape memory spring 26 is the elastic force of the support spring 28 when the temperature contacting the shape memory spring 26 is equal to or higher than the set temperature. It is designed to be larger and less than the temperature, in contrast, the elastic force of the support spring 28 is larger than the elastic force of the shape memory spring 26.

Therefore, if the temperature of the fruit flowing into the condensate inlet 10 is higher than the set temperature, the blocking member 24 is moved to the bottom to block the through hole 60 of the sheet member 22 to prevent the fruit from flowing out. On the contrary, if the temperature of the fruit is equal to or lower than the temperature, the blocking member 24 is raised so that the internal flow path 18 is opened and the condensed water is discharged so as not to enter the heat receiving portion (46, 48 of FIG. 4).

As described above, when the temperature of the condensate in the steam line is gradually increased while the condensed water is discharged through the through hole 60, the shape memory spring 26 is operated again to expand the elastic force of the support spring 28. Win and lower the blocking member 24 to stop the discharge of condensate.

On the other hand, the drainage temperature adjusting knob 58 provided on the upper portion of the body portion 20 is composed of a handle 32 and the control shaft 34 to be rotated by the rotation of the handle (32). As described above, the male screw thread 36 is formed in the adjusting shaft 34, and the male screw thread 36 is fitted to the female screw thread 38 formed in the upper portion of the upper guide hole 56. As it rotates, it is elevated to support the first rod 30 in the longitudinal direction.

The drainage temperature adjusting knob 58 is rotated by the user and adjusts the elastic force of the shape memory spring 26 by moving the first rod 30 vertically as necessary. That is, the drainage temperature adjusting knob 58 may freely set the condensate drainage temperature by adjusting the interval of the blocking member 24 with respect to the sheet member 22.

Therefore, when the blocking member 24 is pushed downward by the control shaft 34 and close to the seat member 22, the distance that the shape memory spring 26 should be expanded becomes smaller, so that the condensate drainage temperature is lowered. On the contrary, when the blocking member 24 rises, the distance to which the shape memory spring 26 should expand increases, so that the condensate drainage temperature increases.

2 and 3 are views showing a state in which a closed cap is coupled to the automatic condensate drain valve according to an embodiment of the present invention.

The same reference numerals as the above reference numerals denote the same members having the same function.

FIG. 2 shows the condensed water flowing out through the first outlet 12 by coupling the closure cap 16 to the second outlet 14. Since the second outlet 14 is blocked, the condensed water flowing into the internal flow path 18 is discharged straight out through the first outlet 12 and discharged straight below.

FIG. 3 is a view illustrating a state in which the first outlet 12 is sealed with the closure cap 16.

As such, since the first outlet 12 is blocked, the condensed water introduced into the outlet is discharged through the second outlet 14.

4 is a view schematically illustrating, for example, an example of using an automatic condensate drain valve according to an embodiment of the present invention.

Referring to the drawings, where the heating or other heat is necessary, the first heat receiving portion 46 and the second heat receiving portion 48 are connected to the steam line 52 and are supplied with thermal energy by the fruit flowing through the steam line. . Fruits that provide heat to the heat receiving parts 46 and 48 are collected in the return tank 50 through the return line 54.

On the other hand, the steam line 52 is branched to the drain valve 9 of the present invention is connected. Inlets of each of the drain valve 9 is connected to the steam line and the drain is connected to the return tank 50 through the return line 54, the condensate through the drain valve (9) through the return line (54) It is returned to the return tank (50).

In the drain valve applied as described above, when the temperature of the fruit headed to the first heat receiving portion 46 or the second heat receiving portion 48 is equal to or higher than the set temperature, the drain valve 9 is closed and the drain valve 9 No fruit is returned through).

However, if the temperature of the fruit flowing to each heat portion gradually falls below the set temperature due to some cause, as described above, the support spring 28 beats the shape memory spring 26 and gradually pushes the blocking member 24 to a low temperature. Automatically prevents fruit from feeding into the heat sink. Since the fruit drained by the drain valve is replenished by being heated by the boiler from the outside, only fruit above the temperature can be supplied to the heat receiving unit.

As a result, the temperature of the heat receiving portion is maintained by the drain valve does not fall below the set temperature to maintain the set temperature.

The present invention has been described in detail through specific embodiments, but the present invention is not limited to the above embodiments, and various modifications may be made by those skilled in the art within the scope of the technical idea of the present invention. .

The automatic condensate drain valve of the present invention made as described above automatically discharges the condensed water cooled below the set temperature by heat exchange with the outside in the steam line by the shape memory spring in the valve, thereby reducing the temperature of the fruit supplied to the heat receiving portion. It can be maintained at the set value, so that the temperature of the heat receiving portion is kept constant, thereby making it reliable. In particular, the configuration of the valve is simple, semi-permanent, and detects the temperature of condensate and operates by itself according to the externally set temperature, so it is easy to control and maximizes energy efficiency of the entire system, thereby saving energy.

Claims (7)

It is connected to the steam line to the heat receiving unit to automatically discharge condensate below the set temperature, A body portion 20 having a condensate inlet 10 and at least one condensate outlet 12 and 14 communicating with the condensate inlet 10 through an internal passage 18; A seat member 22 fixedly installed on an inner circumferential surface of the body portion 20 and providing a flow path; Condensate automatic drain valve, characterized in that it comprises an opening and closing means for operating by the temperature of the fruit flowing into the condensate inlet 10 to seal or open the sheet member. The method of claim 1, The opening and closing means may include: a blocking member 24 in close contact with the sheet member 22 to block the flow path and spaced apart from the sheet member 22 to open the flow path; A shape memory spring 26 which elastically supports the blocking member 24 toward the sheet member 22 by operating in direct contact with the fruit introduced through the condensate inlet 10; It characterized in that it comprises a support spring 28 is installed on the opposite side of the shape memory spring 26 with the blocking member 24 therebetween to elastically support the blocking member 24 to the shape memory spring side 26. Condensate automatic drain valve. The method of claim 2, One side of the blocking member 24 is fixed with a vertical first rod 30 extending through the center of the shape memory spring 26, the first rod 30 on the outside of the body portion 20 The drainage temperature adjusting knob 58 which moves the first rod 30 in the longitudinal direction to support the blocking member 24 together with the shape memory spring 26 toward the seat member 22 in contact with the upper end of ) Is further provided with an automatic condensate drain valve. The method of claim 3, The drain temperature adjusting knob 58 is fixed to the handle 32, the handle 32 It consists of a control shaft 34 extending into the body portion 20 to meet the end of the first rod 30, In order to rotate the handle 32 to move the first rod 30 in the longitudinal direction, the male screw thread 36 is formed on the adjusting shaft 34, and the male screw thread 36 is formed in the body 20. Condensate automatic drain valve, characterized in that provided with a female thread (38) to combine. The method according to claim 3 or 4, The second rod 40 vertically penetrating the center of the support spring 28 is fixed to the other side of the blocking member 24, and the first rod 30 and the second rod in the body 20 are fixed. Condensate automatic drain valve, characterized in that the upper and lower guide parts (42,44) for guiding the longitudinal movement of the 40 is further provided. The method of claim 1, The condensate outlet is composed of a first outlet (12) and a second outlet (14) forming a right angle to each other, the selected one outlet is sealed with a closed cap (16) characterized in that the automatic drain valve. The method of claim 5, The upper surface and the upper side of the blocking member 24 for the operational stability of the shape memory spring 26 Condensate automatic drain valve, characterized in that the spring installation grooves 62 are formed in the lower end of the id portion 42, the end of the shape memory spring 26 is inserted.