CN203869076U - Device protecting gas heat exchanger - Google Patents
Device protecting gas heat exchanger Download PDFInfo
- Publication number
- CN203869076U CN203869076U CN201420198547.2U CN201420198547U CN203869076U CN 203869076 U CN203869076 U CN 203869076U CN 201420198547 U CN201420198547 U CN 201420198547U CN 203869076 U CN203869076 U CN 203869076U
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- CN
- China
- Prior art keywords
- valve
- heat exchanger
- pipeline
- valves
- gas
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a device protecting a gas heat exchanger. A U-shaped pipeline is arranged on an air inlet pipeline and an air outlet pipeline of the heat exchanger. Valves are arranged on a top pipeline and a bottom pipeline of the heat exchanger respectively. Valves are arranged at the two ends of the U-shaped pipeline connected with the top and the bottom of the heat exchanger respectively. Compared with the prior art, the device has the advantages that the phenomenon of gas leakage caused by leakage points of the heat exchanger is avoided, so that the time of production halts caused by accidents is shortened; the phenomenon that hazardous substances of coal tar and the like in coke oven gas adhere to turning plates of the valves after being pre-heated and damage the valves is avoided, and the service life of the valves is prolonged; the economic benefit is improved indirectly, the maintenance time is saved, and the maintenance or replacement cost is saved.
Description
Technical field
The utility model relates to field of heat exchangers, relates in particular to a kind of device of protecting gas change heater.
Background technology
In actual production, what use due to slab portion heating furnace is mixed gas, and mixed gas need to, after heat exchanger preheating, enter burning in stove.Original device is deposited problem both ways: first is when leak source appears in heat exchanger, and the mixed gas of preheating will leak from leak source, has serious potential safety hazard; Second point is while using coke-stove gas, and the coal tar wet goods harmful substance that coke-stove gas contains can be corroded heat exchanger and valve after preheating, and existing like this potential safety hazard can cause device damage again, and then brings economic loss, causes waste.
Summary of the invention
The purpose of this utility model is to provide a kind of device of protecting gas change heater; at heat exchanger air inlet pipeline and gas outlet pipeline, a U-shaped pipeline is set; pipeline in heat exchanger top and bottom arranges respectively valve, at the U-shaped pipeline two ends that are connected with heat exchanger top base, also adds valve.Not only exempt potential safety hazard, and protected heat exchanger, improved the service life of heat exchanger.
For achieving the above object, the utility model is realized by the following technical solutions:
A kind of device of protecting gas change heater; comprise U-shaped pipeline, valve; described valve is divided into valve one, valve two, valve three, valve four; valve one is arranged on pipeline air inlet place, heat exchanger top; valve two is arranged on place, pipeline gas outlet, heat exchanger bottom; valve three, valve four are arranged on U-shaped pipeline, and valve three is arranged on one end of the U-shaped pipeline being connected with valve one place pipeline, and valve four is arranged on one end of the U-shaped pipeline being connected with valve two place pipelines.
Compared with prior art, the beneficial effects of the utility model are:
1) avoided, because leak source appears in heat exchanger, causing the generation of gas leak phenomenon, thereby reduced due to the accident off-time.
2) avoid coal tar wet goods harmful substance in coke-stove gas, after preheating, stick on valve turnover panel, cause the infringement to valve, improve valve service life.
3) indirectly improve economic benefit, removed maintenance time and maintenance or renewal cost from.
Accompanying drawing explanation
Fig. 1 is the structure chart of the utility model protection gas change heater device.
Fig. 2 is used protection gas change heater device design sketch before.
1-U shape pipeline 2-valve one 3-valve two 4-valve three 5-valve four 6-heat exchangers
The specific embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present utility model is further illustrated:
As shown in Figure 1; a kind of device of protecting gas change heater; by U-shaped pipeline 1, valve 1, valve 23, valve 34 and valve 45, formed; valve 1 is arranged on heat exchanger 6 pipeline air inlet places, top; valve 23 is arranged on heat exchanger 6 places, gas outlet, bottom; valve 34, valve 45 are arranged on U-shaped pipeline 1, and valve 34 is arranged on one end of the U-shaped pipeline 1 being connected with valve one 2 place pipelines, and valve 45 is arranged on the other end of the U-shaped pipeline 1 being connected with valve 23 place pipelines.
During normal production, Open valve 1, valve 23, close valve 34, valve 45 on U-shaped pipeline 1, and coal gas enters heat exchanger by A direction, and before preheating, coal gas enters through heat exchanger 6 from heat exchanger top pipeline, becomes coal gas after preheating.When breaking down, adjust flexibly in the following manner:
Embodiment 1:
When heat exchanger has leak source
When there is leak source in heat exchanger, can close valve 1 and the valve 23 of heat exchanger top base pipeline, open other valve 34 and the valve 45 that connects U-shaped pipeline, mixed gas, through bypass line, enters heating furnace according to B direction, thus the minimizing accident off-time.
Embodiment 2:
Use coke-stove gas
In coke-stove gas, harmful substance coal tar is after heat exchanger 6 preheatings, and coking sticks on valve turnover panel, affects valve and uses.Therefore when using coke-stove gas, can close heat exchanger 6 top valves 1 and bottom valve 23, open other valve 34 and the valve 45 that connects U-shaped pipeline; coke-stove gas is through U-shaped pipeline 1; according to B direction, enter heating furnace, thereby protection valve turnover panel improves valve service life.
Claims (1)
1. a device of protecting gas change heater; comprise U-shaped pipeline, valve; it is characterized in that; described valve is divided into valve one, valve two, valve three, valve four; valve one is arranged on pipeline air inlet place, heat exchanger top; valve two is arranged on place, pipeline gas outlet, heat exchanger bottom; valve three, valve four are arranged on U-shaped pipeline; valve three is arranged on one end of the U-shaped pipeline being connected with valve one place pipeline, and valve four is arranged on the other end of the U-shaped pipeline being connected with valve two place pipelines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420198547.2U CN203869076U (en) | 2014-04-21 | 2014-04-21 | Device protecting gas heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420198547.2U CN203869076U (en) | 2014-04-21 | 2014-04-21 | Device protecting gas heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203869076U true CN203869076U (en) | 2014-10-08 |
Family
ID=51650022
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420198547.2U Expired - Fee Related CN203869076U (en) | 2014-04-21 | 2014-04-21 | Device protecting gas heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203869076U (en) |
-
2014
- 2014-04-21 CN CN201420198547.2U patent/CN203869076U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141008 Termination date: 20200421 |