CN217082144U - Circulating type steam trap - Google Patents
Circulating type steam trap Download PDFInfo
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- CN217082144U CN217082144U CN202220431789.6U CN202220431789U CN217082144U CN 217082144 U CN217082144 U CN 217082144U CN 202220431789 U CN202220431789 U CN 202220431789U CN 217082144 U CN217082144 U CN 217082144U
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Abstract
The utility model relates to a circulating steam trap, which comprises a water inlet pipe and a shell connected with the water inlet pipe, wherein one end of the water inlet pipe forms an inlet, and the other end of the water inlet pipe extends into the shell to form a flow dividing cavity between the water inlet pipe and a flow dividing unit of the shell; an outlet is formed at one end of the shell far away from the inlet; this inlet tube integrated into one piece, including nozzle, choke and the baffle that sets gradually, the nozzle is located the outside of casing, choke and baffle be located the inside of casing, this choke and baffle with the casing between form the backward flow chamber, this backward flow chamber with reposition of redundant personnel chamber between communicate each other. The utility model has the advantages that: steam and water entering the reflux circulation process seriously interfere water flow in the throat pipe, so that the pressure in the throat pipe is increased, and the flow is greatly reduced. Due to the reduction of the water discharge amount, the supercooling degree of condensed water flowing out in the process is increased, flash steam is absorbed, and therefore the outlet is basically full of water to flow out.
Description
Technical Field
The utility model relates to a circulating vapour ware that hinders relates to the comdenstion water field of handling.
Background
Condensed water generated in the steam heating process is discharged through a steam trap under many conditions, and a floating ball buoyancy amplifying mechanism of the floating ball type steam trap is easy to wear, corrode and break. Under the working condition of large pressure difference, the valve port is easy to be washed and damaged, so that the valve port is failed; in addition, debris loading can also cause leaks.
In order to improve and ensure the reliability of the production process, a novel drainage device with no moving part inside needs to be developed. The utility model provides a circulating vapour ware that hinders to solve above-mentioned problem.
SUMMERY OF THE UTILITY MODEL
For overcoming the defects of the prior art, the utility model provides a circulating vapour ware that hinders, the technical scheme of the utility model is that:
a circulating steam trap comprises a water inlet pipe and a shell connected with the water inlet pipe, wherein one end of the water inlet pipe forms an inlet, the other end of the water inlet pipe extends into the shell, and a flow dividing cavity is formed between the water inlet pipe and a flow dividing unit of the shell; an outlet is formed at one end of the shell far away from the inlet; the water inlet pipe is integrally formed and comprises a nozzle, a throat pipe and a flow guide body which are sequentially arranged, wherein the nozzle is positioned outside a shell, the throat pipe and the flow guide body are positioned inside the shell, a backflow cavity is formed between the throat pipe and the flow guide body and the shell, and the backflow cavity is communicated with the flow distribution cavity; the throat is provided with a plurality of reflux holes communicated with the reflux cavity.
The flow distribution unit comprises a flow distribution cone and connecting rib plates, the flow distribution cone and the water inlet pipe are coaxially arranged, a plurality of connecting rib plates are uniformly arranged on the periphery of the flow distribution cone, all the connecting rib plates are fixedly arranged on the inner wall of the shell, and a water passing channel is formed between every two adjacent connecting rib plates; the tip of the shunting cone corresponds to the water inlet pipe, and the shunting cavity is formed between the shunting cone and the flow guide body.
The cross section of the flow guide body is arranged in a horn mouth shape, and the flared end of the flow guide body is arranged adjacent to the shunt cone.
The inner diameter of the throat is smaller than that of the nozzle, and a smooth transition section is arranged between the nozzle and the throat.
And one end of the shunting cone, which is close to the outlet, is provided with an arc-shaped bulge.
The water passing channel is arranged in a fan shape.
The connecting rib plates are four.
The utility model has the advantages that: the injection process is completed by injecting, centrifugally separating and circulating the water or the steam-water mixture, and the refluxed water or the steam-water mixture enters the throat pipe to interfere water flow and generate momentum exchange. At the flared end of the flow guiding body, the flow speed is reduced, the pressure is increased and is higher than the pressure in the throat pipe, and when water flows through the nozzle and enters the throat pipe, the pressure is reduced and the flow speed is increased. The steam-water mixture at the position of the flow guide body is subjected to steam-water centrifugal separation under the action of centrifugal force, the separated water enters an outlet through a water channel, and the remaining steam-water mixture enters a backflow circulation process to generate serious interference on water flow in the throat pipe, so that the pressure in the throat pipe is increased, and the flow is greatly reduced. Due to the reduction of the water discharge amount, the supercooling degree of condensed water flowing out in the process is increased, flash steam is absorbed, and therefore the outlet is basically full of water to flow out.
Drawings
Fig. 1 is a schematic view of the main structure of the present invention.
Fig. 2 is a sectional view a-a of fig. 1.
Detailed Description
The invention will be further described with reference to specific embodiments, the advantages and features of the invention will become more apparent as the description proceeds. These examples are merely illustrative and do not limit the scope of the invention in any way. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention, and that such changes and modifications are intended to be included within the scope of the invention.
Referring to fig. 1 and 2, the present invention relates to a circulation type steam trap, which includes a water inlet pipe 14 and a housing 13 connected to the water inlet pipe 14, wherein one end of the water inlet pipe 14 forms an inlet 11, and the other end extends to the inside of the housing 13, and a flow dividing chamber 9 is formed between the water inlet pipe and a flow dividing unit of the housing 13; the end of the housing 13 remote from the inlet 11 forms an outlet 12; the water inlet pipe 14 is integrally formed and comprises a nozzle 1, a throat pipe 2 and a flow guide body 4 which are sequentially arranged, wherein the nozzle 1 is positioned outside a shell 13, the throat pipe 2 and the flow guide body 4 are positioned inside the shell 13, a backflow cavity 3 is formed between the throat pipe 2 and the flow guide body 4 and the shell 13, and the backflow cavity 3 is communicated with the flow dividing cavity 9; the throat pipe 2 is provided with a plurality of return holes communicated with the return cavity (the arrow direction in the figure indicates the flowing direction of water or steam-water mixture).
The flow dividing unit comprises a flow dividing cone 6 and connecting rib plates 5, the flow dividing cone 6 and the water inlet pipe 14 are coaxially arranged, a plurality of connecting rib plates 5 (usually 3-4 blocks, for example 4 blocks in the embodiment) are uniformly arranged on the periphery of the flow dividing cone 6, all the connecting rib plates 5 are fixedly arranged on the inner wall of the shell 13, and a water passing channel 7 is formed between two adjacent connecting rib plates 5; the tip of the diversion cone 6 corresponds to the water inlet pipe 14, and the diversion cavity 9 is formed between the diversion cone and the flow guide body 4.
The section of the flow guide body 4 is arranged in a horn mouth shape, and the flared end of the flow guide body 4 is adjacent to the flow distribution cone 6.
The inner diameter of the throat 2 is smaller than that of the nozzle 1, and a smooth transition section 8 is arranged between the nozzle 1 and the throat 2.
One end of the shunting cone close to the outlet forms an arc-shaped bulge 10 which plays a role in guiding water flow.
As shown in fig. 2, the water passage 7 is arranged in a fan shape.
The utility model discloses a theory of operation is:
the related theoretical points are as follows:
1. according to the bernoulli equation:
The throat pressure decreases and the flow rate increases.
2. The reflux steam-water mixture enters the throat pipe, disturbs water flow and generates momentum exchange, which is an injection process.
3. In the same way as the principle, the flow velocity is reduced and the pressure is increased at the outlet end of the flow guide body and is higher than the pressure in the throat pipe, so that the reflux circulation is realized.
The utility model discloses the during operation, the nozzle is flowed through from the entry to the comdenstion water, and speed risees, and pressure drop then gets into the choke. If the water pressure is low here, vaporization may occur, otherwise the liquid flow is maintained, after which the water or steam-water mixture is divided into two parts by the flow conductor and the flow-dividing cone, one part flows through the water passage to the outlet, and the other part passes through the return cavity to the outside of the throat. A plurality of backflow holes are drilled on the throat pipe, and backflow water or water vapor mixture passes through the backflow holes, enters the throat pipe, is mixed with water entering from the nozzle, flows forwards together and forms circulation through the flow guide body and the flow dividing cone. The larger the steam amount flashed off in the guide body is, the higher the flow speed of the mixture is, and the higher the steam-water separation degree is under the action of centrifugal force, wherein most of water flows to the outlet from the water passing channel between the connecting rib plates. The steam and a small amount of water return to enter the circulation process, and the serious interference is generated on the water flow in the throat pipe, so that the pressure in the throat pipe is increased, and the flow is greatly reduced. Due to the reduction of the water discharge amount, the supercooling degree of condensed water flowing out in the process is increased, flash steam is absorbed, and therefore the outlet is basically full of water to flow out.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (7)
1. A circulating steam trap is characterized by comprising a water inlet pipe and a shell connected with the water inlet pipe, wherein one end of the water inlet pipe forms an inlet, the other end of the water inlet pipe extends into the shell, and a flow dividing cavity is formed between the water inlet pipe and a flow dividing unit of the shell; an outlet is formed at one end of the shell far away from the inlet; the water inlet pipe is integrally formed and comprises a nozzle, a throat pipe and a flow guide body which are sequentially arranged, wherein the nozzle is positioned outside a shell, the throat pipe and the flow guide body are positioned inside the shell, a backflow cavity is formed between the throat pipe and the flow guide body and the shell, and the backflow cavity is communicated with the flow distribution cavity; the throat is provided with a plurality of reflux holes communicated with the reflux cavity.
2. A circulating type steam stop according to claim 1, wherein the flow dividing unit comprises a flow dividing cone and connecting rib plates, the flow dividing cone and the water inlet pipe are coaxially arranged, a plurality of connecting rib plates are uniformly arranged on the periphery of the flow dividing cone, all the connecting rib plates are fixedly arranged on the inner wall of the shell, and a water passing channel is formed between every two adjacent connecting rib plates; the tip of the shunting cone corresponds to the water inlet pipe, and the shunting cavity is formed between the shunting cone and the flow guide body.
3. A circulating steam trap as defined in claim 2, wherein the cross-section of the flow conductor is flared, and the flared end of the flow conductor is disposed adjacent to the splitter cone.
4. A circular choke in accordance with claim 3, characterised in that the throat has a smaller internal diameter than the nozzle, and that a smooth transition is provided between the nozzle and the throat.
5. A circular vapour barrier according to claim 4, wherein the end of the diverter cone adjacent the outlet is formed as an arcuate projection.
6. A circulating steam trap as defined in claim 2, wherein said water passage is provided in the form of a fan.
7. A circulating steam trap according to claim 2 or 6, wherein the connecting webs are four pieces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220431789.6U CN217082144U (en) | 2022-03-01 | 2022-03-01 | Circulating type steam trap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220431789.6U CN217082144U (en) | 2022-03-01 | 2022-03-01 | Circulating type steam trap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217082144U true CN217082144U (en) | 2022-07-29 |
Family
ID=82547438
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220431789.6U Active CN217082144U (en) | 2022-03-01 | 2022-03-01 | Circulating type steam trap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217082144U (en) |
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2022
- 2022-03-01 CN CN202220431789.6U patent/CN217082144U/en active Active
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