CN220707036U - Floating ball type liquid level control valve for condensing heat exchanger - Google Patents
Floating ball type liquid level control valve for condensing heat exchanger Download PDFInfo
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- CN220707036U CN220707036U CN202322503757.XU CN202322503757U CN220707036U CN 220707036 U CN220707036 U CN 220707036U CN 202322503757 U CN202322503757 U CN 202322503757U CN 220707036 U CN220707036 U CN 220707036U
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- valve body
- heat exchanger
- floating ball
- liquid level
- condensing heat
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- 239000007788 liquid Substances 0.000 title claims abstract description 90
- 230000001105 regulatory effect Effects 0.000 claims abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000007791 liquid phase Substances 0.000 claims abstract description 12
- 230000005494 condensation Effects 0.000 claims description 10
- 238000009833 condensation Methods 0.000 claims description 10
- 238000007599 discharging Methods 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 3
- 230000002209 hydrophobic effect Effects 0.000 description 6
- 239000012808 vapor phase Substances 0.000 description 4
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000005514 two-phase flow Effects 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
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- Float Valves (AREA)
Abstract
The utility model discloses a floating ball type liquid level control valve for a condensing heat exchanger, which comprises a lower valve body and an upper valve body, wherein the upper valve body is positioned above the lower valve body; the lower valve body is internally provided with a bent regulating flow passage, two ends of the regulating flow passage are respectively provided with a liquid phase inlet flange and an outlet flange, the liquid phase inlet flange is used for being connected with a condensed water outlet pipe of the condensing heat exchanger, and the outlet flange is used for being connected with a liquid discharge pipeline so as to realize liquid discharge in the condensing heat exchanger; the top of the upper valve body is provided with a vapor inlet flange which is used for connecting a vapor pipe of the condensing heat exchanger; the floating ball component is arranged in the cavity in the upper valve body, the bottom of the floating ball component extends into the adjusting flow channel and floats up and down in the adjusting flow channel along with the liquid level change in the cavity of the upper valve body so as to open or close the adjusting flow channel. The utility model has the advantages of compact structure, simple operation, accurate control and the like, effectively maintains the constant liquid level in the condensing heat exchanger, and avoids steam leakage caused by the evacuation of the liquid in the condensing heat exchanger.
Description
Technical Field
The utility model belongs to the technical field of control valves, and particularly relates to a floating ball type liquid level control valve for a condensing heat exchanger.
Background
In industries such as electric power, chemical industry and the like, water vapor transmits energy through equipment such as a heat exchanger and the like, condensed water after heat exchange needs to be discharged in time, but the normal liquid level of operation is guaranteed, if the water level is completely emptied to zero, steam leakage is likely to be caused, and the economical efficiency is affected.
Chinese patent application 201720877480.9 mentions a vapour-liquid two-phase flow automatic steam trap which is capable of varying the size of the drain depending on whether the liquid level is below or above the normal operating level. However, the steam trap can only control the size of the steam trap within a certain range, and cannot completely shut off the steam trap. If the condensation amount is still smaller than the drainage amount, the water level can be completely emptied, and the drainage pipeline starts to run away steam, so that the economical efficiency of the system operation is affected.
Disclosure of Invention
The utility model aims to solve the technical problem of overcoming the defects of the prior art and providing the floating ball type liquid level control valve for the condensing heat exchanger, which has the advantages of compact structure, simple operation and precise control.
In order to solve the technical problems, the utility model adopts the following technical scheme:
a floating ball type liquid level control valve for a condensing heat exchanger comprises a lower valve body and an upper valve body, wherein the upper valve body is positioned above the lower valve body; the lower valve body is internally provided with a bent adjusting flow passage, two ends of the adjusting flow passage are respectively provided with a liquid phase inlet flange and an outlet flange, the liquid phase inlet flange is used for being connected with a condensate water outlet pipe of the condensing heat exchanger, and the outlet flange is used for being connected with a liquid discharge pipeline so as to realize liquid discharge in the condensing heat exchanger; the top of the upper valve body is provided with a vapor inlet flange which is used for connecting a vapor pipe of the condensing heat exchanger; the floating ball assembly is arranged in the cavity in the upper valve body, the bottom of the floating ball assembly extends into the adjusting flow channel and floats up and down in the adjusting flow channel along with the liquid level change in the cavity of the upper valve body so as to open or close the adjusting flow channel.
As a further improvement of the present utility model, the float ball assembly includes: the floating ball, the connecting rod and the valve core; the floating ball is positioned in the cavity of the upper valve body, the valve core is positioned in the regulating flow channel, the top of the connecting rod is connected with the floating ball, and the bottom of the connecting rod penetrates through the bottom of the upper valve body to be connected with the valve core; along with the liquid level change in the cavity of the upper valve body, the floating ball and the connecting rod drive the valve core to float up and down in the regulating flow passage so as to open or close the regulating flow passage.
As a further improvement of the utility model, a throttle orifice is arranged in the regulating flow passage, the throttle orifice is positioned below the valve core, and the shape of the throttle orifice is matched with the shape of the valve core; when the valve core falls into the throttling port, the adjusting flow passage is closed.
As a further improvement of the utility model, the inside of the lower valve body and the upper valve body are provided with communicated drainage channels, the inlets of the drainage channels are positioned at the bottom of the cavity of the upper valve body, the outlets of the drainage channels are communicated with the regulating channels, and the drainage channels are used for discharging liquid in the cavity of the upper valve body.
As a further improvement of the utility model, the inlet end of the hydrophobic flow passage is provided with a flow passage joint which extends into the cavity of the upper valve body; when the valve core falls into the throttling port to close the adjusting flow passage, the floating ball is pressed against the flow passage joint to prevent steam in the condensing heat exchanger from leaking through the floating ball type liquid level control valve.
As a further improvement of the utility model, the lower valve body and the upper valve body are detachably connected in a sealing way through a bolt assembly.
Compared with the prior art, the utility model has the advantages that:
according to the floating ball type liquid level control valve for the condensing heat exchanger, the upper valve body is arranged above the lower valve body, the bent adjusting flow channel is arranged in the lower valve body, and the liquid inlet flange and the liquid outlet flange are respectively arranged at the two ends of the adjusting flow channel, so that the two ends of the lower valve body are respectively connected with the condensed water outlet pipe of the condensing heat exchanger and the external liquid discharge pipeline, and the liquid in the condensing heat exchanger is discharged; the top of the upper valve body is provided with a vapor inlet flange, namely the upper valve body is connected with a vapor pipe of the condensing heat exchanger, and the interface of the vapor pipe is positioned at the lowest point of the normal operation liquid level of the condensing heat exchanger; meanwhile, a floating ball component is arranged in the cavity in the upper valve body, the bottom of the floating ball component extends into the adjusting flow channel and floats up and down in the adjusting flow channel along with the liquid level change in the cavity of the upper valve body, and when the liquid level in the condensing heat exchanger is lower than the normal liquid level, the floating ball component controls the adjusting flow channel to be completely closed; when the internal part of the condensing heat exchanger is higher than the normal liquid level, the liquid level regulating flow passage is completely opened; when the condensation heat exchanger slightly floats in the normal liquid level range, the adjusting flow passage can also be opened only by a smaller opening degree because the floating height of the floating ball component is smaller; the floating ball type liquid level control valve effectively maintains the constant liquid level in the condensing heat exchanger, avoids vapor leakage caused by liquid emptying in the condensing heat exchanger, and improves the economical efficiency of system operation.
Drawings
Fig. 1 is a schematic diagram of the structure principle of the floating ball type liquid level control valve for the condensing heat exchanger in an open state.
Fig. 2 is a schematic structural diagram of a floating ball type liquid level control valve for a condensing heat exchanger in a closed state.
FIG. 3 is a schematic view of the construction principle of the condensing heat exchanger; in the figure, the liquid level at A represents the lowest liquid level at which the condensing heat exchanger is operating normally.
Legend description: 1. a liquid phase inlet flange; 2. a vapor inlet flange; 3. an outlet flange; 4. a floating ball; 41. a connecting rod; 5. a hydrophobic flow channel; 51. a runner joint; 6. a valve core; 7. a choke; 8. adjusting the flow channel; 9. a bolt assembly; 10. a lower valve body; 20. an upper valve body; 100. a condensing heat exchanger; 101. a condensed water outlet pipe; 102, a step of; a vapor phase tube.
Detailed Description
The utility model is further described below in connection with the drawings and the specific preferred embodiments, but the scope of protection of the utility model is not limited thereby.
Examples
As shown in fig. 1 to 3, the floating ball type liquid level control valve for a condensing heat exchanger of the present utility model includes a lower valve body 10 and an upper valve body 20 disposed in a vertical direction, the upper valve body 20 being located above the lower valve body 10. The lower valve body 10 is internally provided with a bent adjusting flow channel 8, two ends of the adjusting flow channel 8 are respectively provided with a liquid phase inlet flange 1 and an outlet flange 3, the liquid phase inlet flange 1 is used for being connected with a condensate water outlet pipe 101 of the condensing heat exchanger 100, and the outlet flange 3 is used for being connected with a liquid discharge pipeline so as to realize liquid discharge in the condensing heat exchanger 100. The upper valve body 20 is provided at the top with a vapor inlet flange 2, and the vapor inlet flange 2 is used to connect the vapor pipe 102 of the condensing heat exchanger 100. The floating ball component is arranged in the cavity inside the upper valve body 20, the bottom of the floating ball component extends into the adjusting flow channel 8 and floats up and down in the adjusting flow channel 8 along with the liquid level change in the cavity of the upper valve body 20 so as to open or close the adjusting flow channel 8.
It will be appreciated that the level control valve installation requires that the pressure at the outlet be lower than the pressure at both the vapor and liquid phase inlets. As shown in fig. 3, the interface position of the vapor-phase tube 102 is at the lowest point of the normal liquid level during the normal operation of the condensing heat exchanger 100, the liquid level is higher than the liquid level at the position a, the condensing heat exchanger 100 operates normally, the liquid level is lower than the liquid level at the position a, which indicates that the liquid in the condensing heat exchanger 100 is less, and the liquid in the condensing heat exchanger 100 is not suitable to be discharged.
In this embodiment, by arranging the upper valve body 20 above the lower valve body 10, a curved adjusting flow channel 8 is arranged in the lower valve body 10, and two ends of the adjusting flow channel 8 are respectively provided with a liquid phase inlet flange 1 and an outlet flange 3, namely, two ends of the lower valve body 10 are respectively connected with the condensate water outlet pipe 101 of the condensation heat exchanger 100 and an external liquid discharge pipeline, and liquid in the condensation heat exchanger 100 is discharged. The top of the upper valve body 20 is provided with a vapor inlet flange 2, namely the upper valve body 20 is connected with a vapor pipe 102 of the condensing heat exchanger 100, and the interface of the vapor pipe 102 is positioned at the lowest point of the normal operation liquid level of the condensing heat exchanger 100; meanwhile, a floating ball component is arranged in the cavity in the upper valve body 20, the bottom of the floating ball component extends into the regulating flow channel 8 and floats up and down in the regulating flow channel 8 along with the liquid level change in the cavity of the upper valve body 20, and when the liquid level in the condensing heat exchanger is lower than the normal liquid level, the floating ball component controls the regulating flow channel 8 to be completely closed; when the internal temperature of the condensing heat exchanger is higher than the normal liquid level, the liquid level adjusting flow passage 8 is completely opened; when the condensation heat exchanger slightly floats in the normal liquid level range, the adjusting flow channel 8 can also be opened only by a smaller opening degree because the floating height of the floating ball component is smaller; the floating ball type liquid level control valve of the embodiment effectively maintains the constant liquid level in the condensing heat exchanger, avoids vapor leakage caused by liquid emptying in the condensing heat exchanger, and improves the economical efficiency of system operation.
As shown in fig. 1 and 2, in this embodiment, the floating ball assembly includes: float ball 4, connecting rod 41 and case 6. The floating ball 4 is positioned in the cavity of the upper valve body 20, the valve core 6 is positioned in the regulating flow channel 8, the top of the connecting rod 41 is connected with the floating ball 4, and the bottom of the connecting rod 41 penetrates through the bottom of the upper valve body 20 to be connected with the valve core 6. Along with the liquid level change in the cavity of the upper valve body 20, the floating ball 4 and the connecting rod 41 drive the valve core 6 to float up and down in the regulating flow passage 8 so as to open or close the regulating flow passage 8.
In the present embodiment, as shown in fig. 1 and 2, a throttle orifice 7 is disposed in the adjusting flow passage 8, the throttle orifice 7 is located below the valve core 6, and the shape of the throttle orifice 7 matches the shape of the valve core 6. When the valve element 6 drops down into the orifice 7, the regulating flow channel 8 is closed.
As shown in fig. 1 and 2, the inside of the lower valve body 10 and the upper valve body 20 is provided with a communicated drain flow passage 5, an inlet of the drain flow passage 5 is positioned at the bottom of the cavity of the upper valve body 20, an outlet of the drain flow passage 5 is communicated with the regulating flow passage 8, and the drain flow passage 5 is used for discharging liquid in the cavity of the upper valve body 20.
Further, the inlet end of the hydrophobic flow passage 5 is provided with a flow passage joint 51, and the flow passage joint 51 extends into the cavity of the upper valve body 20. After the valve core 6 falls into the throttle 7 to close the adjusting flow passage 8, the floating ball 4 is pressed against the flow passage joint 51 to prevent steam in the condensing heat exchanger from leaking through the floating ball type liquid level control valve.
In this embodiment, the liquid in the cavity of the upper valve body 20 can be continuously discharged through the hydrophobic flow channel 5, and after the liquid is discharged, the floating ball 4 falls down and plugs the inlet of the flow channel joint 51, so that the vapor can be prevented from being continuously discharged, and the vapor-discharging phenomenon is avoided.
In this embodiment, the lower valve body 10 and the upper valve body 20 are detachably connected in a sealing manner through the bolt assembly 9, and the valve has the advantages of simple structure, convenience in assembly and disassembly, reliability in connection and the like.
In this embodiment, when the liquid level in the condensation heat exchanger 100 is higher than the normal liquid level, i.e. the liquid level is higher than the liquid level at the position a in fig. 3, water enters the cavity of the upper valve body 20 along the vapor-phase pipe 102, so that the floating ball 4 in the cavity floats upwards, the floating ball 4 drives the valve core 6 to move upwards through the connecting rod 41, and thus the adjusting flow passage 8 of the liquid phase is opened, and the water can be rapidly discharged through the control valve.
When the liquid level in the condensation heat exchanger 100 gradually drops below the normal liquid level, that is, when the liquid level is lower than or equal to the liquid level at the position A in FIG. 3, no water enters the upper valve body 20 again, the original water in the cavity of the upper valve body 20 is discharged into the regulating flow passage 8 along the hydrophobic flow passage, the floating ball 4 descends, the valve core 6 descends, the regulating flow passage 8 is closed, and meanwhile, the bottom of the floating ball 4 is pressed at the inlet of the flow passage joint 51 to prevent steam from leaking from the hydrophobic flow passage 5 to the outlet of the regulating flow passage 8. When the liquid level in the condensation heat exchanger 100 fluctuates up and down, the floating ball type liquid level control valve is opened and closed in a reciprocating manner until the water level can automatically maintain a stable state, and the liquid level in the condensation heat exchanger 100 is ensured to be stable.
While the utility model has been described with reference to preferred embodiments, it is not intended to be limiting. Any person skilled in the art can make many possible variations and modifications to the technical solution of the present utility model or equivalent embodiments using the method and technical solution disclosed above without departing from the spirit and technical solution of the present utility model. Therefore, any simple modification, equivalent substitution, equivalent variation and modification of the above embodiments according to the technical substance of the present utility model, which do not depart from the technical solution of the present utility model, still fall within the scope of the technical solution of the present utility model.
Claims (6)
1. A floating ball type liquid level control valve for a condensing heat exchanger is characterized by comprising a lower valve body (10) and an upper valve body (20), wherein the upper valve body (20) is positioned above the lower valve body (10); the inside of the lower valve body (10) is provided with a bent adjusting flow passage (8), two ends of the adjusting flow passage (8) are respectively provided with a liquid phase inlet flange (1) and an outlet flange (3), the liquid phase inlet flange (1) is used for being connected with a condensed water outlet pipe (101) of the condensing heat exchanger (100), and the outlet flange (3) is used for being connected with a liquid discharge pipeline so as to realize liquid discharge in the condensing heat exchanger (100); the top of the upper valve body (20) is provided with a vapor inlet flange (2), and the vapor inlet flange (2) is used for connecting a vapor pipe (102) of the condensing heat exchanger (100); the floating ball assembly is arranged in the inner cavity of the upper valve body (20), the bottom of the floating ball assembly extends into the adjusting flow channel (8) and floats up and down in the adjusting flow channel (8) along with the liquid level change in the cavity of the upper valve body (20) so as to open or close the adjusting flow channel (8).
2. The float ball type liquid level control valve for condensing heat exchanger according to claim 1, wherein said float ball assembly comprises: a floating ball (4), a connecting rod (41) and a valve core (6); the floating ball (4) is positioned in the cavity of the upper valve body (20), the valve core (6) is positioned in the regulating flow channel (8), the top of the connecting rod (41) is connected with the floating ball (4), and the bottom of the connecting rod (41) penetrates through the bottom of the upper valve body (20) to be connected with the valve core (6); along with the liquid level change in the cavity of the upper valve body (20), the floating ball (4) and the connecting rod (41) drive the valve core (6) to float up and down in the adjusting flow channel (8) so as to open or close the adjusting flow channel (8).
3. The floating ball type liquid level control valve for a condensing heat exchanger according to claim 2, characterized in that a throttle orifice (7) is arranged in the regulating flow passage (8), the throttle orifice (7) is positioned below the valve core (6), and the shape of the throttle orifice (7) is matched with the shape of the valve core (6); when the valve core (6) falls into the throttling port (7), the adjusting flow passage (8) is closed.
4. A float-type liquid level control valve for a condensing heat exchanger according to claim 3, characterized in that the inside of the lower valve body (10) and the upper valve body (20) is provided with a communicated drain flow passage (5), the inlet of the drain flow passage (5) is positioned at the bottom of the cavity of the upper valve body (20), the outlet of the drain flow passage (5) is communicated with the regulating flow passage (8), and the drain flow passage (5) is used for discharging liquid in the cavity of the upper valve body (20).
5. The floating ball type liquid level control valve for condensing heat exchanger according to claim 4, characterized in that the inlet end of said drain flow channel (5) is provided with a flow channel joint (51), said flow channel joint (51) extending into the cavity of the upper valve body (20); after the valve core (6) falls into the throttling port (7) to close the adjusting flow passage (8), the floating ball (4) is propped against the flow passage joint (51) so as to prevent steam in the condensing heat exchanger (100) from leaking through the floating ball type liquid level control valve.
6. Float-type liquid level control valve for a condensation heat exchanger according to any of claims 1 to 5, wherein the lower valve body (10) and the upper valve body (20) are detachably connected in a sealing manner by means of a screw assembly (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322503757.XU CN220707036U (en) | 2023-09-14 | 2023-09-14 | Floating ball type liquid level control valve for condensing heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322503757.XU CN220707036U (en) | 2023-09-14 | 2023-09-14 | Floating ball type liquid level control valve for condensing heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220707036U true CN220707036U (en) | 2024-04-02 |
Family
ID=90450592
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322503757.XU Active CN220707036U (en) | 2023-09-14 | 2023-09-14 | Floating ball type liquid level control valve for condensing heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220707036U (en) |
-
2023
- 2023-09-14 CN CN202322503757.XU patent/CN220707036U/en active Active
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