CN207197754U - A kind of low-pressure side leaks the detection means for causing superpressure for the heat exchanger of liquid because going here and there - Google Patents
A kind of low-pressure side leaks the detection means for causing superpressure for the heat exchanger of liquid because going here and there Download PDFInfo
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- CN207197754U CN207197754U CN201721205465.6U CN201721205465U CN207197754U CN 207197754 U CN207197754 U CN 207197754U CN 201721205465 U CN201721205465 U CN 201721205465U CN 207197754 U CN207197754 U CN 207197754U
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- heat exchanger
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Abstract
The utility model is related to the heat exchanger that a kind of low-pressure side is liquid causes the detection means of superpressure because string leaks, and its structure includes safety valve entrance sleeve, safety valve, liquid collecting tank, far transmission level meter etc., and total is shown in Fig. 1.Principle of the present utility model is that pressure change is converted into liquid level change, and realizes itself function by detecting liquid level change, and its specific workflow is as follows：Superpressure occurs because string leaks for heat exchanger low-pressure side, and safety valve is opened, and liquid is first discharged into liquid collecting tank by safety valve and outwards discharged again, and the far transmission level meter being now arranged on liquid collecting tank captures liquid level signal, completes detection.When heat exchanger low-pressure side is liquid, if because string leakage phenomenon occurs for the reasons such as tube head leakage or booster, detection means can in time find and provide signal the utility model.
Description
Technical field
Superpressure detection technique field is the utility model is related to, refers specifically to one kind when heat exchanger low-pressure side is liquid, if because
Tube head leaks or booster is when causing superpressure, the superpressure detection means that can be found in time.
Background technology
Heat exchanger is a kind of energy-saving equipment for realizing heat transfer between material, is in use, chemical industry, petrochemical industry, smelting
A kind of commonly used process equipment of the industries such as gold, electric power, light industry, food.Heat exchanger accounts for total equipment in oil refining, chemical plant installations
40% or so of quantity, account for the 30% ~ 50% of gross investment.Recently as the development of power-saving technology, application field constantly expands, profit
High temperature is carried out with heat exchanger and low temperature heat energy recovery brings significant economic interests.At present, in heat transmission equipment, usage amount is most
Big is shell-and-tube heat exchanger.
The main distinction of shell-and-tube heat exchanger and other structures pattern pressure vessel, which is to turn round in pressure-bearing shell, to be mounted with
The tube bank of heat transfer property is realized, and shell-and-tube heat exchanger is generally dual-chamber container, and tube bank is used as and bears bilateral pressure medium, temperature
Degree, the failure of the element such as the part of mobilization, its main pressurized element tube sheet, heat exchanger tube can cause media of both sides string to leak, with
If the development of heat exchanger maximization, can not find in time, weight can be caused to the safety and economy of whole equipment
Big loss.
It is the heat exchanger that liquid low side is gas for shell-and-tube heat exchanger high-pressure side, mainly by detecting low-pressure side shell
The change of liquid level whether is had in vivo to find to go here and there leakage problem, the development of this detection technique is quite ripe, but for low
The shell-and-tube heat exchanger that side is liquid is pressed, the means that can be used for detecting at present only have pressure switch, and method is quite limited to.
The content of the invention
The purpose of this utility model is to provide the heat exchanger that a kind of low-pressure side is liquid causes the detection of superpressure to fill because string leaks
Put, when heat exchanger low-pressure side is liquid, if because string leakage phenomenon occurs for tube head leakage or the reason such as booster, detection means can and
Shi Faxian simultaneously provides signal.
The utility model realizes technical scheme used by above-mentioned function：A kind of low-pressure side is leaked for the heat exchanger of liquid because going here and there
Cause the detection means of superpressure, a safety valve is installed on low pressure side body, safety valve entrance sleeve is interior into cylinder to stretch one
Duan Gaodu, the outlet of safety valve access liquid collecting tank by one section of adapter；Higher than the position of liquid collecting tank outlet on feed tube in liquid collecting tank
Put and an anti-dam baffle is set, coordinate the liquid-proof seal structure of the breather pipe composition liquid collecting tank at the top of liquid collecting tank；On liquid collecting tank
Far transmission level meter is also equipped with, in addition, the sewage draining exit stop valve extension tube attached of bottom connects with the breather pipe at the top of liquid collecting tank；Thus
Form whole detection means.
Compared with prior art, the utility model has the advantage of：
Compared with the detection method of pressure switch, Cleaning Principle of the present utility model is that pressure change is converted into liquid level to become
Change, and itself function, rather than direct measurement pressure are realized by detecting liquid level change, be a kind of superpressure detection side of innovation
Formula, and also add a guarantee for the safe operation of heat exchanger.
During liquid enters liquid collecting tank, due to the presence of anti-dam baffle and liquid collecting tank top vent pipe, far
Falsity water level phenomenon will not be occurred because of the too high generation fluid-tight of flow rate of liquid by passing liquid level gauge.
Brief description of the drawings
Fig. 1 is that the heat exchanger that the utility model low-pressure side is liquid leaks the planar structure for the detection means for causing superpressure because going here and there
Schematic diagram.
Wherein：
Safety valve 1, liquid collecting tank 2, far transmission level meter 3；
Safety valve entrance sleeve 1.1, safety valve discharge connection 1.2；
Anti- dam baffle 2.1, breather pipe 2.2, feed tube 2.3, liquid collecting tank outlet 2.4, sewage draining exit 2.5.
Specific embodiment
Further the detection means of superpressure is caused to carry out because string leaks for the heat exchanger of liquid low-pressure side below in conjunction with accompanying drawing 1
It is described in detail.
As shown in figure 1, the detection means includes safety valve entrance sleeve 1.1, safety valve 1, liquid collecting tank 2, far transmission level meter 3
Deng.One safety valve 1 is installed on low pressure side body, safety valve entrance sleeve 1.1 is interior into cylinder to stretch one section of height, safety valve
Outlet 1.2 pass through one section adapter access liquid collecting tank 2；Higher than the position of liquid collecting tank outlet 2.4 on feed tube 2.3 in liquid collecting tank 2
One anti-dam baffle 2.1 of upper setting, the breather pipe 2.2 at the top of liquid collecting tank is coordinated to form the liquid-proof seal structure of liquid collecting tank；Liquid collecting
Far transmission level meter 3 is also equipped with tank 2, in addition, the stop valve extension tube attached of sewage draining exit 2.5 of bottom and the breather pipe at the top of liquid collecting tank
2.2 connection；Thus whole detection means is formed.
When heat exchanger high-voltage side dielectric leakage is to low-pressure side, most obvious change is low-pressure lateral pressure rise, works as rise
During to certain pressure, safety valve 1 will be opened, and now stretch certain height because safety valve entrance sleeve 1.1 is interior into cylinder
Degree, so regardless of high-pressure side medium is liquid or gas, medium that safety valve is discharged at first after opening necessarily liquid, these
The liquid of discharge first passes through liquid collecting tank 2 and then discharged again, and the far transmission level meter 3 being now arranged on liquid collecting tank 2 will necessarily
Liquid level signal is captured, it is possible thereby to judge that heat exchanger has occurred and that string leakage.And during liquid enters liquid collecting tank, by
In the presence of anti-dam baffle and liquid collecting tank top vent pipe, far transmission level meter will not be because of the too high generation fluid-tight of flow rate of liquid
And falsity water level phenomenon occurs.
Claims (1)
1. a kind of low-pressure side leaks the detection means for causing superpressure for the heat exchanger of liquid because going here and there, it is characterised in that：In low-pressure side shell
One safety valve is installed, safety valve entrance sleeve is interior into cylinder to stretch one section of height, and the outlet of safety valve is connect by one section on body
Pipe accesses liquid collecting tank；Higher than an anti-dam baffle is set on the position of liquid collecting tank outlet on feed tube in liquid collecting tank, with intersection
The liquid-proof seal structure of breather pipe composition liquid collecting tank at the top of flow container；Far transmission level meter is also equipped with liquid collecting tank, in addition, bottom
Sewage draining exit stop valve extension tube attached connects with the breather pipe at the top of liquid collecting tank；Thus whole detection means is formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721205465.6U CN207197754U (en) | 2017-09-20 | 2017-09-20 | A kind of low-pressure side leaks the detection means for causing superpressure for the heat exchanger of liquid because going here and there |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721205465.6U CN207197754U (en) | 2017-09-20 | 2017-09-20 | A kind of low-pressure side leaks the detection means for causing superpressure for the heat exchanger of liquid because going here and there |
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| Publication Number | Publication Date |
|---|---|
| CN207197754U true CN207197754U (en) | 2018-04-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721205465.6U Active CN207197754U (en) | 2017-09-20 | 2017-09-20 | A kind of low-pressure side leaks the detection means for causing superpressure for the heat exchanger of liquid because going here and there |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111896197A (en) * | 2020-06-15 | 2020-11-06 | 合肥通用机械研究院有限公司 | Trace leakage monitoring system of gas-water heat exchanger |
| CN112628115A (en) * | 2020-12-31 | 2021-04-09 | 中盐华能储能科技有限公司 | Multi-section series compressor system capable of emergently stopping under pipe explosion working condition and stopping method |
-
2017
- 2017-09-20 CN CN201721205465.6U patent/CN207197754U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111896197A (en) * | 2020-06-15 | 2020-11-06 | 合肥通用机械研究院有限公司 | Trace leakage monitoring system of gas-water heat exchanger |
| CN112628115A (en) * | 2020-12-31 | 2021-04-09 | 中盐华能储能科技有限公司 | Multi-section series compressor system capable of emergently stopping under pipe explosion working condition and stopping method |
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