CN210890264U - Pipeline constant pressure device - Google Patents
Pipeline constant pressure device Download PDFInfo
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- CN210890264U CN210890264U CN201921267477.0U CN201921267477U CN210890264U CN 210890264 U CN210890264 U CN 210890264U CN 201921267477 U CN201921267477 U CN 201921267477U CN 210890264 U CN210890264 U CN 210890264U
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- corrugated pipe
- cylinder body
- pipe
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Abstract
The utility model relates to a pipeline barostat, which comprises a cylinder body; the upper end of the cylinder body is fixedly connected with an upper cover, and the lower end of the cylinder body is fixedly connected with a lower cover; a backwater inlet pipe is connected to the side wall of the middle part of the cylinder body, and a backwater outlet pipe is welded in a penetrating way; an upper corrugated pipe is accommodated above the inner part of the cylinder body, the upper end of the upper corrugated pipe is welded with the upper cover, and the lower end of the upper corrugated pipe is welded with the upper corrugated pipe movable plate; the upper corrugated pipe movable plate is fixedly connected with the top end of the central core; a central seat fixedly connected with a backwater outlet pipe is arranged in the middle of the cylinder body, and a central core is in through connection with the central seat; the lower part in the cylinder body is provided with a lower corrugated pipe welded with the lower cover, and the upper end of the lower corrugated pipe is welded with a lower corrugated pipe fixing plate; the lower corrugated pipe fixing plate is fixedly connected with the tail end of the central core. The utility model discloses it is invariable to have outlet pipe pressure, and is irrelevant with inlet pressure, user's volume, each branch road change. The outlet pressure can be preset, saving time and cost.
Description
Technical Field
The utility model belongs to the technical field of pipeline transmission, in particular to a pipeline barostat.
Background
In the past, in order to meet the requirements of the flow and pressure of each branch, a common adjusting method is manually completed by using the opening degree of a valve or a throttle orifice plate according to the user quantity, the mutual influence of each branch is adjusted by using the opening degree of the valve or the throttle orifice plate, the adjustment is complicated, and once the flow and the pressure of one branch change, the whole heating network is influenced. The adjustment by using the orifice plate needs strict calculation, but the error is larger. The two adjusting methods all need the fixed user quantity of each branch, and the user can adjust the branch only after the heating begins due to the continuous change every year, so that the workload is large. The electric regulating valve is used for regulating the flow and pressure of each branch, the cost is high, and power electricity is needed.
SUMMERY OF THE UTILITY MODEL
The utility model relates to a special pipeline barostat for pipeline pressure, flow adjustment.
The utility model aims at realizing through the following technical scheme:
a pipeline barostat comprises a cylinder body;
the upper end of the cylinder body is fixedly connected with an upper cover, and the lower end of the cylinder body is fixedly connected with a lower cover;
a backwater inlet pipe is connected to the side wall of the middle part of the cylinder body, and a backwater outlet pipe is welded in a penetrating way;
an upper corrugated pipe is accommodated above the inner part of the cylinder body, the upper end of the upper corrugated pipe is welded with the upper cover, and the lower end of the upper corrugated pipe is welded with the upper corrugated pipe movable plate; the upper corrugated pipe movable plate is fixedly connected with the top end of the central core;
a central seat fixedly connected with a backwater outlet pipe is arranged in the middle of the cylinder body, and a central core is in through connection with the central seat;
the lower part in the cylinder body is provided with a lower corrugated pipe welded with the lower cover, and the upper end of the lower corrugated pipe is welded with a lower corrugated pipe fixing plate; the lower corrugated pipe fixing plate is fixedly connected with the tail end of the central core.
Two funnel-shaped sealing valves are arranged on the outer side of the central core, and when the central core moves upwards, the sealing valves are far away from the central seat and are gradually opened to increase the flow of the backwater outlet pipe; when the central core moves downwards, the sealing valve is close to the central seat and gradually seals, and the flow of the backwater outlet pipe is reduced.
A feedback pipe is arranged on the return water outlet pipe, and the free end of the feedback pipe is arranged in the inner cavity of the upper corrugated pipe.
The lower cover is provided with an inflation tube which is communicated with the inner cavity of the lower corrugated tube.
The diameter of the upper corrugated pipe is the same as that of the lower corrugated pipe, and the drift diameter of the corrugated pipe is more than twice of that of the backwater inlet pipe.
The utility model discloses a pipeline pressostat advantage is:
1. the utility model discloses it is invariable to have outlet pipe pressure, and is irrelevant with inlet pressure, user's volume, each branch road change.
2. The utility model discloses favorable operating position is arranged in to the gas tube, and the cross compressor body can bury underground entirely.
3. The outlet pressure of the utility model is related to the inflation pressure, unrelated to other parameters and can be preset.
Drawings
Fig. 1 is a structural view of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawing 1.
A pipeline barostat comprises a cylinder body 2; the upper end of the cylinder body 2 is fixedly connected with an upper cover 1, and the lower end is fixedly connected with a lower cover 12; a backwater inlet pipe 5 is connected to the side wall of the middle part of the cylinder body 2, and a backwater outlet pipe 9 is welded in a penetrating mode; an upper corrugated pipe 3 is accommodated above the inner part of the cylinder body 2, the upper end of the upper corrugated pipe 3 is welded with the upper cover 1, and the lower end of the upper corrugated pipe 3 is welded with an upper corrugated pipe movable plate 4; the upper bellows movable plate 4 is fixedly connected with the top end of the central core 8; a central seat 6 fixedly connected with a backwater outlet pipe 9 is arranged at the middle part in the cylinder body 2, and a central core 8 is in through connection with the central seat 6; a lower corrugated pipe 11 welded with a lower cover 12 is arranged at the lower part in the cylinder body 2, and the upper end of the lower corrugated pipe 11 is welded with a lower corrugated pipe fixing plate 10; the lower corrugated pipe fixing plate 10 is fixedly connected with the tail end of the central core 8.
Two funnel-shaped sealing valves are arranged on the outer side of the central core 8, and when the central core 8 moves upwards, the sealing valves are far away from the central seat 6 and are gradually opened, so that the flow of the backwater outlet pipe 9 is increased; when the central core 8 moves downwards, the sealing valve is close to the central seat 6 and gradually seals, and the flow of the backwater outlet pipe 9 is reduced.
A feedback pipe 7 is arranged on the return water outlet pipe 9, and the free end of the feedback pipe 7 is arranged in the inner cavity of the upper corrugated pipe 3.
The lower cover 12 is provided with an inflation tube 13 which leads into the inner cavity of the lower corrugated tube.
The diameter of the upper corrugated pipe 3 is the same as that of the lower corrugated pipe 11, and the drift diameter of the corrugated pipe is more than twice of that of the backwater inlet pipe 9.
The working principle is as follows:
the utility model discloses an inflation tube fills the air and enters lower bellows inner chamber, and lower bellows moves up in the upper end under the air pressure effect, drives central core and shifts up, reaches the maximum aperture of barostat, and when the fluid got into the import, flows to the export through two sections openings of center seat, sets for inlet pressure and P, and outlet pressure is P2, and inflation pressure is P1, and it has to do not count two bellows deformation rigidity power and center seat both ends and central core pressure differential, and central core upward force has;
1. the pressure P1S S acting in the lower bellows movable plate is the same as the acting area of the bellows;
2. fluid pressure PS acting on the upper bellows movable plate;
the central core has a downward force;
1. an outlet pressure P2S acting within the upper bellows movable plate;
2. fluid pressure PS acting on the lower bellows movable plate;
the central core balance condition is that the resultant force is zero;
P1S+PS＝P2S+PS (1)
because the two corrugated pipes have the same diameter and are S at the same time, the finishing formula is
P1＝P2 (2)
The outlet pressure P2 is related to the charge pressure P1, independent of the inlet pressure P, from equation (2).
The P1 is the air pressure artificially charged in advance according to the heat quantity used by the user, the pipe constant pressure device is at the maximum opening under the action of P1, when the pressure of the pipe flowing into the fluid pipe constant pressure device P2 is large, the central core moves under the action of P2, the opening of the pipe constant pressure device is gradually reduced until P2 is P1, the stress of the central core is balanced, when the pressure of the inlet P is changed, P2 is also changed, the stress of the central core is unbalanced, the central core moves to reach the new balance, namely P2 is P1, when the user increases or decreases after the outlet, P2 is changed, the stress balance of the central core is broken, the central core moves, and the new balance, namely P2 is P1 is reached.
The above analysis shows that the outlet pressure of the pipeline barostat is only related to the inflation pressure regardless of the inlet pressure change or the user change, and is always P2-P1 regardless of other parameters.
Claims (5)
1. A pipeline barostat is characterized in that,
comprises a cylinder body;
the upper end of the cylinder body is fixedly connected with an upper cover, and the lower end of the cylinder body is fixedly connected with a lower cover;
a backwater inlet pipe is connected to the side wall of the middle part of the cylinder body, and a backwater outlet pipe is welded in a penetrating way;
an upper corrugated pipe is accommodated above the inner part of the cylinder body, the upper end of the upper corrugated pipe is welded with the upper cover, and the lower end of the upper corrugated pipe is welded with the upper corrugated pipe movable plate; the upper corrugated pipe movable plate is fixedly connected with the top end of the central core;
a central seat fixedly connected with a backwater outlet pipe is arranged in the middle of the cylinder body, and a central core is in through connection with the central seat;
the lower part in the cylinder body is provided with a lower corrugated pipe welded with the lower cover, and the upper end of the lower corrugated pipe is welded with a lower corrugated pipe fixing plate; the lower corrugated pipe fixing plate is fixedly connected with the tail end of the central core.
2. The pipeline barostat according to claim 1,
two funnel-shaped sealing valves are arranged on the outer side of the central core, and when the central core moves upwards, the sealing valves are far away from the central seat and are gradually opened to increase the flow of the backwater outlet pipe; when the central core moves downwards, the sealing valve is close to the central seat and gradually seals, and the flow of the backwater outlet pipe is reduced.
3. The pipeline barostat according to claim 1, wherein the return water outlet pipe is provided with a feedback pipe, and the free end of the feedback pipe is disposed in the inner cavity of the upper bellows.
4. The pipeline barostat according to claim 1, wherein the lower cover is provided with an inflation tube that opens into the inner cavity of the lower bellows.
5. The pipeline barostat according to claim 1, wherein the upper bellows and the lower bellows have the same diameter, and the diameter of the bellows is more than twice the diameter of the return water inlet pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921267477.0U CN210890264U (en) | 2019-08-07 | 2019-08-07 | Pipeline constant pressure device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921267477.0U CN210890264U (en) | 2019-08-07 | 2019-08-07 | Pipeline constant pressure device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210890264U true CN210890264U (en) | 2020-06-30 |
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ID=71315932
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921267477.0U Active CN210890264U (en) | 2019-08-07 | 2019-08-07 | Pipeline constant pressure device |
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| Country | Link |
|---|---|
| CN (1) | CN210890264U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110440039A (en) * | 2019-08-07 | 2019-11-12 | 沈阳宏奇热力设备制造有限公司 | Pipeline barostat |
-
2019
- 2019-08-07 CN CN201921267477.0U patent/CN210890264U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110440039A (en) * | 2019-08-07 | 2019-11-12 | 沈阳宏奇热力设备制造有限公司 | Pipeline barostat |
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