CN214838658U - Heating control relief pressure valve - Google Patents
Heating control relief pressure valve Download PDFInfo
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- CN214838658U CN214838658U CN202120300852.8U CN202120300852U CN214838658U CN 214838658 U CN214838658 U CN 214838658U CN 202120300852 U CN202120300852 U CN 202120300852U CN 214838658 U CN214838658 U CN 214838658U
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- decompression
- pipeline
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Abstract
The utility model provides a heating control pressure reducing valve, which comprises a shell and a fluid pipeline arranged in the shell, wherein the shell is connected with a pressure reducing leakage part; the decompression leakage piece is internally provided with a decompression leakage channel communicated with the fluid pipeline, and the decompression leakage piece is internally provided with a decompression valve core for controlling the on-off of the decompression leakage channel. The pressure-reducing leakage piece is used for relieving pressure of the fluid pipeline when the pressure of the fluid medium is overlarge, so that the pipe explosion caused by the fact that the heating pipelines connected to the two ends of the pressure-reducing valve cannot bear the pressure is prevented; through setting up the pipeline case of control fluid pipeline break-make, and the pipeline case is passed to the decompression route, but the break-make that can a small amount of decompression can not influence fluid pipeline when pressure risees a small amount, only when pressure risees gradually, just can promote the pipeline case to remove and block the purpose that the fluid pipeline reaches urgent decompression, has increased the functionality and the practicality of this relief pressure valve.
Description
Technical Field
The utility model relates to the technical field of valves, especially, relate to a heating control relief pressure valve.
Background
In recent years, with the continuous improvement of the daily living standard, people begin to put forward higher requirements on self living conditions, especially the requirements on building heating systems are gradually improved, the heating systems are widely applied to civil buildings at present, but the heating conditions of the heating systems still have many defects, the heating temperature is unbalanced, the pressure is unbalanced, and the like. The control valve of the traditional civil building heating system, radiator and the like mainly plays a role in opening and closing, and cannot well play a role in pressure reduction.
SUMMERY OF THE UTILITY MODEL
To the technical problem, the utility model provides a heating control relief pressure valve for solve the heating control valve among the prior art can not be better just arrive the problem of decompression.
In order to achieve the above purpose, the technical solution of the present invention is realized as follows:
a heating control pressure reducing valve comprises a shell and a fluid pipeline arranged in the shell, wherein a pressure reducing leakage part is connected to the shell; and a pressure reducing leakage passage communicated with the fluid pipeline is arranged in the pressure reducing leakage part, and a pressure reducing valve core for controlling the on-off of the pressure reducing leakage passage is arranged in the pressure reducing leakage part.
Further, the pressure-reducing leakage passage includes a pressure-reducing inlet section and a pressure-reducing outlet section, the pressure-reducing inlet section communicating with the pressure-reducing outlet section through a tapered section; and the pressure reducing valve core is provided with a conical piece matched with the conical section.
Furthermore, the decompression leakage piece is provided with an adjusting component for adjusting the decompression valve core, and the adjusting component is connected with the decompression valve core.
Furthermore, the adjusting assembly comprises an adjusting screw rod which is arranged on the pressure-reducing leakage piece in a penetrating mode, and the adjusting screw rod is in threaded connection with the pressure-reducing leakage piece; one end of the adjusting screw rod is connected with the pressure reducing valve core, and the other end of the adjusting screw rod is provided with a locking nut.
Furthermore, a piston is further arranged in the decompression leakage piece, one side of the piston is in running fit with the adjusting screw, and the other side of the piston is connected with the decompression valve core through a first spring.
Furthermore, a return channel communicated with the fluid pipeline is arranged in the shell, and the pressure reduction leakage channel is communicated with the fluid pipeline through the return channel.
Furthermore, a pipeline valve core for controlling the on-off of the fluid pipeline is further arranged in the shell, one end of the pipeline valve core is connected with the decompression leakage piece through a second spring, and the other end of the pipeline valve core is arranged opposite to the outlet of the return channel so that the pipeline valve core can close the fluid pipeline under the pushing of fluid in the return channel.
Furthermore, a valve core fluid channel is arranged in the valve core, and the pressure reduction leakage channel is communicated with the return channel through the valve core fluid channel.
Furthermore, a drain port communicated with the backflow channel is formed in the bottom of the shell, and a cock is arranged on the drain port.
The utility model has the advantages that: the pressure-reducing leakage piece is used for relieving pressure of the fluid pipeline when the pressure of the fluid medium is overlarge, so that the pipe explosion caused by the fact that the heating pipelines connected to the two ends of the pressure-reducing valve cannot bear the pressure is prevented; through setting up the pipeline case of control fluid pipeline break-make, and the pipeline case is passed to the decompression route, but the break-make that can a small amount of decompression can not influence the fluid pipeline when pressure risees a small amount, only when pressure risees gradually, the pipeline case just can remove and block the purpose that the fluid pipeline reaches urgent decompression, has increased the functionality and the practicality of this relief pressure valve.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without any creative effort belong to the protection scope of the present invention.
As shown in fig. 1, a heating control pressure reducing valve according to an embodiment of the present invention is connected to a heating pipeline, and includes a housing 1 and a fluid pipeline 4 disposed in the housing 1, wherein the fluid pipeline 4 leads from one side of the housing 1 to the other side of the housing 1 so that a fluid medium can flow through the pressure reducing valve; the shell 1 is connected with a pressure-reducing leakage piece 13 for relieving pressure of a fluid pipeline when the pressure of a fluid medium is overlarge, so that the pipe explosion of a heating pipeline connected to two ends of the pressure-reducing valve due to the fact that the heating pipeline cannot bear the pressure is prevented; a decompression leakage channel penetrating through the decompression leakage piece 13 is arranged in the decompression leakage piece 13, one end of the decompression leakage channel is communicated with the fluid pipeline 4, and the partial fluid medium is conveniently discharged from the other end, namely the outlet end, of the decompression leakage channel, so that the decompression effect is realized; the outlet end of the pressure relief leak path is connected to a conduit 16 for discharging the discharged fluid medium to a uniform location. A pressure reducing valve core 9 for controlling the on-off of a pressure reducing leakage channel is arranged in the pressure reducing leakage piece 13, the pressure reducing valve core 9 is positioned in the middle of the pressure reducing leakage channel, and the pressure reducing valve core 9 can move in the pressure reducing leakage piece 13; under normal conditions, decompression case 9 is in the state of closing the decompression and revealing the passageway, and when pressure increased in fluid line 4, the fluid pressure that flows into the decompression and reveals the passageway also increases to the removal that promotes decompression case 9 makes the decompression reveal that the passageway is unobstructed, makes unnecessary fluid discharge, thereby reaches the purpose of decompression.
Further, as shown in fig. 1, the reduced-pressure leakage path includes a reduced-pressure inlet section 7 and a reduced-pressure outlet section 8, the reduced-pressure inlet section 7 communicating with the reduced-pressure outlet section 8 through a tapered section; and the pressure reducing valve core 9 is provided with a conical piece matched with the conical section. The small end of the conical section faces the pressure reduction inlet section 7, the large end of the conical section faces the pressure reduction valve core 9, a conical piece matched with the conical section is arranged at one end, facing the conical section, of the pressure reduction valve core 9, and under the condition of normal pressure, the conical piece is in sealing fit with the conical section.
Further, as shown in fig. 1, an adjusting component for adjusting the pressure reducing valve core 9 is arranged on the pressure reducing leakage member 13, and the adjusting component is connected with the pressure reducing valve core 9, so that the pressure reducing valve core 9 can be adjusted according to the pressure in the heating pipe to be controlled as required, and the pressure reducing valve core 9 can move under the pushing of fluid media with different pressures, so that the pressure reducing leakage passage leaks part of the fluid media to achieve the purpose of reducing pressure.
Further, as shown in fig. 1, the adjusting assembly includes an adjusting screw 10 penetrating through the pressure-reducing leakage piece 13, and the adjusting screw 10 is in threaded connection with the pressure-reducing leakage piece 13; one end of the adjusting screw 10, which is positioned in the decompression leakage piece 13, is connected with the decompression valve core 9, one end of the adjusting screw 10, which is positioned outside the decompression leakage piece 13, is provided with a locking nut 11, the adjusting screw 10 is connected with the decompression leakage piece 13 through the locking nut 11, and the movement of the adjusting screw 10 can be adjusted by adjusting the locking nut 11, so that the movement pressure of the decompression valve core 9 is adjusted.
Further, as shown in fig. 1, a piston 12 is further disposed in the decompression leakage member 13, one side of the piston 12 is rotationally matched with the adjusting screw 10, and the other side of the piston is connected with the decompression valve core 9 through a first spring 14. The first spring 14 makes the pressure-reducing spool 9 movable, and makes the pressure-reducing spool 9 move against the elastic force of the first spring 14 under the thrust force of the fluid.
Further, as shown in fig. 1, a return passage 5 communicating with the fluid line 4 is provided in the housing 1, and the pressure-reducing leakage passage communicates with the fluid line 4 through the return passage 5. When the fluid medium flows through the fluid line 4, part of the medium can flow into the return channel 5 into the pressure relief leakage channel, so that the pressure relief valve element 9 is lifted open for pressure relief when the pressure rises.
Further, as shown in fig. 1, a pipeline valve core 2 for controlling the on-off of the fluid pipeline 4 is further arranged in the housing 1, and one end of the pipeline valve core 2 is connected with the pressure-reducing leakage piece 13 through a second spring 15, so that the pipeline valve core 2 can move in the housing 1; the other end of the pipeline valve core 2 is arranged opposite to the outlet of the return channel 5 so that the pipeline valve core 2 moves under the pushing of the fluid pressure in the return channel 5 after rising to close the fluid pipeline 4; the fluid pipeline 4 comprises an inlet section and an outlet section which are communicated, the pipeline valve core 2 is positioned between the inlet section and the outlet section, and the inlet of the return channel 5 is communicated with the outlet section. Initially, the fluid pipeline 4 is in a normally open state, when the medium pressure in the return channel 5 is higher, the pipeline valve core 2 is pushed by the medium to move, and the bulge arranged on the pipeline valve core 2 can block the fluid pipeline 4 after moving, so that the outlet section of the fluid pipeline 4 is closed, and the pressure in the heating pipeline connected to one side of the outlet of the pressure reducing valve is reduced; meanwhile, the fluid in the return channel 5 is continuously reduced, and because the outlet section of the fluid pipeline 4 is closed, no fluid flows into the return channel 5, the fluid pressure is reduced, and the pipeline valve core 2 is reset, so that the fluid pipeline 4 is opened again.
Further, as shown in fig. 1, a spool fluid channel 6 is provided in the pipeline spool 2, and the pressure reduction leakage channel is communicated with the return channel 5 through the spool fluid channel 6 to form a pressure reduction passage. The pretightening force of the second spring 15 is larger than that of the first spring 14, so that when the pressure in the fluid pipeline 4 is increased by a small amount, the pipeline valve core 2 cannot move to influence the normal work of the fluid pipeline 4, and a part of fluid medium can be discharged through the pressure reducing leakage channel to be reduced; only in the process that the pressure in the fluid pipeline 4 is further gradually increased, the pipeline valve core 2 can move to block the fluid pipeline 4 to achieve the purpose of emergency pressure reduction; and the pressure reduction leakage channel is communicated with the return channel 5 through a valve core fluid channel 6 in the pipeline valve core 2, so that the leakage and pressure reduction of the fluid medium are smoother.
Further, as shown in fig. 1, a drain port communicated with the return channel 5 is formed at the bottom of the housing 1, so that fluid in the return channel 5 can be drained conveniently, and a cock 3 is arranged on the drain port.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. A heating control pressure reducing valve comprises a shell (1) and a fluid pipeline (4) arranged in the shell (1), and is characterized in that a pressure reducing leakage piece (13) is connected to the shell (1); a decompression leakage passage communicated with the fluid pipeline (4) is arranged in the decompression leakage piece (13), and a decompression valve core (9) for controlling the on-off of the decompression leakage passage is arranged in the decompression leakage piece (13).
2. The heating control pressure reducing valve according to claim 1, wherein the pressure reducing leakage passage includes a pressure reducing inlet section (7) and a pressure reducing outlet section (8), the pressure reducing inlet section (7) communicating with the pressure reducing outlet section (8) through a tapered section; and the pressure reducing valve core (9) is provided with a conical piece matched with the conical section.
3. The heating control pressure reducing valve according to claim 1 or 2, wherein the pressure reducing leakage member (13) is provided with an adjusting component for adjusting the pressure reducing valve core (9), and the adjusting component is connected with the pressure reducing valve core (9).
4. The heating control pressure reducing valve according to claim 3, wherein the adjusting component comprises an adjusting screw rod (10) penetrating through the pressure reducing leakage piece (13), and the adjusting screw rod (10) is in threaded connection with the pressure reducing leakage piece (13); one end of the adjusting screw rod (10) is connected with the pressure reducing valve core (9), and the other end is provided with a locking nut (11).
5. The heating control pressure reducing valve according to claim 4, wherein a piston (12) is further arranged in the pressure reducing leakage piece (13), one side of the piston (12) is in rotating fit with the adjusting screw rod (10), and the other side of the piston is connected with the pressure reducing valve core (9) through a first spring (14).
6. The heating control pressure reducing valve according to claim 1, 2, 4 or 5, wherein a return passage (5) communicating with the fluid line (4) is provided in the housing (1), and the pressure reducing leakage passage communicates with the fluid line (4) through the return passage (5).
7. The heating control pressure reducing valve according to claim 6, wherein a pipeline valve core (2) for controlling the on-off of the fluid pipeline (4) is further arranged in the housing (1), one end of the pipeline valve core (2) is connected with the pressure reducing leakage part (13) through a second spring (15), and the other end of the pipeline valve core (2) is arranged opposite to the outlet of the return channel (5) so that the pipeline valve core (2) closes the fluid pipeline (4) under the pushing of the fluid in the return channel (5).
8. The heating control pressure reducing valve according to claim 7, wherein a valve core fluid passage (6) is provided in the pipe valve core (2), and the pressure reducing leakage passage is communicated with the return passage (5) through the valve core fluid passage (6).
9. The heating control pressure reducing valve according to claim 7 or 8, wherein a drain port communicated with the return channel (5) is formed at the bottom of the housing (1), and a cock (3) is arranged on the drain port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120300852.8U CN214838658U (en) | 2021-02-03 | 2021-02-03 | Heating control relief pressure valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120300852.8U CN214838658U (en) | 2021-02-03 | 2021-02-03 | Heating control relief pressure valve |
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| Publication Number | Publication Date |
|---|---|
| CN214838658U true CN214838658U (en) | 2021-11-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120300852.8U Active CN214838658U (en) | 2021-02-03 | 2021-02-03 | Heating control relief pressure valve |
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| CN (1) | CN214838658U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116196647A (en) * | 2023-05-05 | 2023-06-02 | 东营联合石化有限责任公司 | Fractionating tower top circulation reflux device |
-
2021
- 2021-02-03 CN CN202120300852.8U patent/CN214838658U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116196647A (en) * | 2023-05-05 | 2023-06-02 | 东营联合石化有限责任公司 | Fractionating tower top circulation reflux device |
| CN116196647B (en) * | 2023-05-05 | 2023-08-01 | 东营联合石化有限责任公司 | Fractionating tower top circulation reflux device |
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