CN214971775U - Anti-flushing steam reboiler system of condensate pipeline - Google Patents

Abstract

The utility model discloses a condensate pipeline anti-flushing steam reboiler system, which comprises a steam reboiler, wherein the inlet of the steam reboiler is connected with a steam pipeline, the outlet of the steam reboiler is connected with one end of a condensate pipeline, a front valve of a steam trap, a steam trap and a rear valve of the steam trap are sequentially arranged on the condensate pipeline from the outlet connecting end of the steam reboiler, and the other end of the condensate pipeline is connected with one end of a check valve; a condensate pipeline between an outlet of the steam reboiler and the front valve of the steam trap is connected with one end of a bypass pipeline, and the other end of the bypass pipeline is connected with a condensate pipeline between the rear valve of the steam trap and the check valve; a bypass valve of the steam trap is arranged on the bypass pipeline; the condensate is discharged from the condensate pipeline through the bypass valve of the steam trap, so that the phenomenon that steam and liquid coexist in the condensate pipeline when the hydrophobic amount of the steam trap is insufficient can be avoided, the condensate pipeline is prevented from leaking and exploding, and the operability, load factor and safety of the system are improved.

Description

Anti-flushing steam reboiler system of condensate pipeline

Technical Field

The utility model relates to a steam is reboiler technical field of heat source, especially relates to a steam reboiler system of scour prevention type is prevented to condensation fluid pipeline.

Background

At present, both basic chemical industry and fine chemical industry need to use a steam reboiler to provide temperature for a process medium. The steam enters a reboiler to provide heat for the process medium, and then the steam is condensed into condensate, and the condensate discharged from the steam reboiler enters a condensate pipe network through a steam trap. In daily use, the steam trap can be blocked and dredged, so that the water quantity is reduced; or the load of the steam reboiler system is large, the steam condensation amount greatly exceeds the design capacity of the steam trap, the drainage is not timely, and the heat supply of the system is not good. When the hydrophobic quantity of the steam trap can not meet the requirement, steam and liquid are formed in the condensate pipeline and coexist, the condensate pipeline is washed, the elbow part of the condensate pipeline is seriously thinned for a long time, leakage is easy to occur, and the condensate pipeline is exploded seriously.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a condensate pipeline prevents washing away formula steam reboiler system to solve the steam reboiler system that exists among the prior art, when the steam trap hydrophobic volume can not satisfy the demand, form the vapour and liquid coexistence in the condensate pipeline, cause to erode the condensate pipeline, condensate pipeline elbow position attenuate is serious in the past for a long time, leaks when easily taking place, leads to the problem of condensate pipeline explosion when serious.

In order to achieve the above object, the utility model adopts the following technical scheme:

a condensate pipeline anti-flushing steam reboiler system comprises a steam reboiler, wherein an inlet of the steam reboiler is connected with a steam pipeline, an outlet of the steam reboiler is connected with one end of a condensate pipeline, a front steam trap valve, a steam trap and a rear steam trap valve are sequentially installed on the condensate pipeline from an outlet connecting end of the steam reboiler, and the other end of the condensate pipeline is connected with one end of a check valve; the other end of the check valve is connected with the condensate main pipe; a condensate pipeline between an outlet of the steam reboiler and the front valve of the steam trap is connected with one end of a bypass pipeline, and the other end of the bypass pipeline is connected with a condensate pipeline between the rear valve of the steam trap and the check valve; the bypass pipeline is provided with a steam trap bypass valve which is positioned below the steam trap.

In the above aspect, it may be preferable that a first pilot valve of the steam trap bypass valve is installed at a front end of the steam trap bypass valve, and a second pilot valve of the steam trap bypass valve is installed at a rear end of the steam trap bypass valve.

It may also be preferred that the front trap valve, the back trap valve, the bypass trap valve, the first bypass trap valve, and the second bypass trap valve are all manual valves.

It may also be preferred that the steam pipe is fitted with a steam regulating valve.

It may also be preferred that the steam line between the steam control valve and the steam reboiler is fitted with a remote steam flow meter.

It may also be preferred that the steam line between the steam control valve and the steam reboiler is fitted with a steam reboiler remote sensing point.

It may also be preferred that the condensate manifold is connected to a boiler.

The utility model discloses a condensate pipeline prevents washing brush steam reboiler system's beneficial effect as follows:

the utility model discloses a condensate pipeline prevents washing away formula steam reboiler system has solved among the prior art steam reboiler system, when the hydrophober dredges the water yield and can't satisfy the demand, forms vapour-liquid coexistence in the condensate pipeline, causes the scouring to the condensate pipeline, and long-term in the past the condensate pipeline elbow position attenuate seriously, leak when easily taking place, lead to the condensate pipeline to explode the problem when serious; the steam trap of the system is arranged above the bypass valve of the steam trap, and the discharge of condensate from the condensate pipe to the condensate pipe is regulated through the bypass valve of the steam trap, so that the phenomenon that when the drainage quantity of the steam trap is insufficient, the condensate pipe is flushed by the coexistence of steam and liquid in the condensate pipe, the elbow part of the condensate pipe is thinned can be avoided, the leakage of the condensate pipe and the explosion risk can be prevented, the operability, the load factor and the safety of the system are improved, and the stable operation of the whole system is guaranteed.

Drawings

The accompanying drawings, which are described herein, serve to provide a further understanding of the invention and constitute a part of this specification, and the exemplary embodiments and descriptions thereof are provided for explaining the invention without unduly limiting it. In the drawings:

fig. 1 is a schematic diagram of the system connection of the condensed liquid pipeline anti-flushing steam reboiler of the present invention.

In the figure, the arrow direction represents the flow direction of steam or condensate, in the figure, 1 is a steam reboiler, 2 is a steam pipeline, 3 is a condensate pipeline, 4 is a steam trap front valve, 5 is a steam trap, 6 is a steam trap rear valve, 7 is a steam trap bypass valve, 8 is a check valve, 9 is a bypass pipeline, 10 is a steam trap bypass valve first pilot valve, 11 is a steam trap bypass valve second pilot valve, 12 is a steam regulating valve, 13 is a remote-transmission steam flowmeter, and 14 is a steam reboiler remote-transmission pressure measuring point.

Detailed Description

To make the purpose, technical solution and advantages of the present invention clearer, the following will combine the embodiments of the present invention and the corresponding drawings to clearly and completely describe the technical solution of the present invention. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

Example 1

As shown in fig. 1, a condensed liquid pipeline anti-flushing steam reboiler system comprises a steam reboiler 1, wherein an inlet of the steam reboiler 1 is connected with a steam pipeline 2, an outlet of the steam reboiler 1 is connected with one end of a condensed liquid pipeline 3, a front steam trap valve 4, a steam trap 5 and a rear steam trap valve 6 are sequentially installed on the condensed liquid pipeline 3 from an outlet connecting end of the steam reboiler 1, and the other end of the condensed liquid pipeline 3 is connected with one end of a check valve 8; the other end of the check valve 8 is connected with a condensate main pipe; a condensate pipeline 3 between an outlet of the steam reboiler 1 and a front valve 4 of the steam trap is connected with one end of a bypass pipeline 9, and the other end of the bypass pipeline 9 is connected with the condensate pipeline 3 between a rear valve 6 of the steam trap and a check valve 8; bypass line 9 has steam trap bypass valve 7 mounted thereon, steam trap bypass valve 7 being located below steam trap 5.

In the condensed liquid pipeline anti-flushing steam reboiler system of the embodiment, steam enters the steam reboiler 1 from the steam pipeline 2, and after the steam enters the steam reboiler 1 to exchange heat with a medium, the steam is condensed into condensed liquid; the condensate enters a condensate pipeline 3, passes through a front valve 4 of a steam trap, is subjected to steam trap and air blocking by a steam trap 5, and then is discharged, passes through a rear valve 6 of the steam trap, and then enters a condensate header pipe through a check valve 8; when the drainage volume is reduced due to blockage of the steam trap 5 or the load of the steam reboiler system is large and the steam condensation volume is large, exceeding the design capacity of the steam trap 5, adjusting and opening a bypass valve 7 of the steam trap to enable part of condensate to flow from a bypass pipeline 9 to a check valve 8 through the bypass valve 7 of the steam trap and then flow to the condensate header pipe through the check valve 8; the system ensures the heat requirement of the steam reboiler 1, avoids the phenomenon that the drainage quantity of the steam trap 5 is insufficient, the phenomenon that the elbow part in the condensate pipeline 3 is thinned due to the fact that the condensate pipeline 3 is washed by the co-existence of steam and liquid in the condensate pipeline 3 at the rear end of the steam trap 5 is avoided, and therefore leakage and explosion of the condensate pipeline are prevented; the steam reboiler system has the characteristics of compact structure, small occupied area, high heat transfer coefficient, simple equipment installation and low manufacturing cost.

Example 2

As shown in fig. 1, a condensate pipe flushing prevention steam reboiler system is similar to embodiment 1 except that a first pilot valve 10 of a steam trap bypass valve is installed at a front end of the steam trap bypass valve 7 and a second pilot valve 11 of the steam trap bypass valve is installed at a rear end of the steam trap bypass valve 7.

In the condensed liquid pipeline anti-flushing steam reboiler system of the embodiment, when the steam reboiler system is stopped for maintenance, the first drain valve 10 of the steam trap bypass valve and the second drain valve 11 of the steam trap bypass valve can be opened to discharge liquid, so that the process is safely handed over; in winter, the first guide shower valve 10 of the bypass valve of the steam trap and the second guide shower valve 11 of the bypass valve of the steam trap can be slightly opened, so that the low point of the bypass pipeline is prevented from being frozen.

It may also be preferred that front trap valve 4, back trap valve 6, bypass trap valve 7, first trap valve 10, and second trap valve 11 are all manual valves.

It is also preferable that the steam pipeline 2 is equipped with a steam control valve 12, and the steam control valve 12 adjusts the amount of steam used in the steam reboiler 1.

It is also preferred that the steam line 2 between the steam control valve 12 and the steam reboiler 1 is equipped with a remote steam flow meter 13 for metering the amount of steam used by the steam reboiler 1.

It may also be preferred that the steam line 2 between the steam regulating valve 12 and the steam reboiler 1 is equipped with a steam reboiler remote pressure sensing point 14 for observing the operating pressure of the steam reboiler 1.

It may also be preferred that the condensate header is connected to a boiler and that condensate in the condensate header is passed to the boiler for recycling.

Example 3

As shown in fig. 1, in the condensate pipeline anti-flushing steam reboiler system of the present embodiment, the steam trap 5 is installed above the steam trap bypass valve 7, and when the amount of water drained by the steam trap 5 cannot meet the demand, the steam trap bypass valve 7 is opened, and the condensate enters the condensate header pipe in two ways:

the first path is as follows: steam is condensed into condensate after exchanging heat with a medium in the steam reboiler 1, and a part of the condensate passes through the bypass valve 7 of the steam trap and then enters the condensate header pipe through the check valve 8;

and a second path: steam condenses into the condensate behind steam reboiler 1 and the medium heat transfer, and another part condensate passes through steam trap front valve 4, exports the condensate 5 department at steam trap, blocks steam at steam trap 5 front end, prevents that steam is extravagant and causes the washing out to condensate pipeline 3 at steam trap 5 rear end, and condensate passes through steam trap rear valve 6 and gets into the condensate house steward through check valve 8.

Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.

Claims (7)

1. A condensate pipeline anti-flushing steam reboiler system comprises a steam reboiler (1), wherein an inlet of the steam reboiler (1) is connected with a steam pipeline (2), and the steam reboiler system is characterized in that an outlet of the steam reboiler (1) is connected with one end of a condensate pipeline (3), a steam trap front valve (4), a steam trap (5) and a steam trap rear valve (6) are sequentially installed on the condensate pipeline (3) from an outlet connecting end of the steam reboiler (1), and the other end of the condensate pipeline (3) is connected with one end of a check valve (8); the other end of the check valve (8) is connected with a condensate main pipe; a condensate pipeline (3) between the outlet of the steam reboiler (1) and the front valve (4) of the steam trap is connected with one end of a bypass pipeline (9), and the other end of the bypass pipeline (9) is connected with the condensate pipeline (3) between the rear valve (6) of the steam trap and a check valve (8); a steam trap bypass valve (7) is installed on the bypass pipeline (9), and the steam trap bypass valve (7) is positioned below the steam trap (5).

2. An anti-scour system for a steam trap pipe according to claim 1, wherein a first pilot (10) of the trap bypass valve is mounted at a front end of the trap bypass valve (7), and a second pilot (11) of the trap bypass valve is mounted at a rear end of the trap bypass valve (7).

3. The steam trap pipe erosion prevention system of claim 2, wherein the front trap valve (4), the back trap valve (6), the bypass trap valve (7), the first bypass trap valve (10), and the second bypass trap valve (11) are all manual valves

4. An anti-scour system for a steam trap conduit according to claim 1, wherein the steam conduit (2) is fitted with a steam control valve (12).

5. An anti-scour system for a steam trap pipeline according to claim 3, wherein the steam pipeline (2) between the steam control valve (12) and the steam reboiler (1) is fitted with a remote steam flow meter (13).

6. An anti-scour system for a steam trap conduit according to claim 3, wherein the steam conduit (2) between the steam control valve (12) and the steam reboiler (1) is fitted with a steam reboiler remote sensing point (14).

7. The steam trap pipe erosion prevention system of claim 1, wherein the condensate manifold is connected to a boiler.

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