CN214251403U

CN214251403U - Detection system

Info

Publication number: CN214251403U
Application number: CN202120432297.4U
Authority: CN
Inventors: 栾永超; 李刚; 郭云飞; 王方亮; 司慧斌; 李宝林; 徐龙龙; 马长生; 裴延有; 尤俊升
Original assignee: China Shenhua Coal to Liquid Chemical Co Ltd; Ordos Coal to Liquid Branch of China Shenhua Coal to Liquid Chemical Co Ltd
Current assignee: China Shenhua Coal to Liquid Chemical Co Ltd; Ordos Coal to Liquid Branch of China Shenhua Coal to Liquid Chemical Co Ltd
Priority date: 2021-02-25
Filing date: 2021-02-25
Publication date: 2021-09-21
Anticipated expiration: 2031-02-25

Abstract

The utility model relates to a chemical industry equipment technical field specifically relates to a detecting system. The detection system comprises a device to be detected, an enrichment unit and a detection unit, wherein the device to be detected is provided with a first channel and a second channel which are not communicated with each other, the first channel circulates a medium to be detected, the second channel circulates a gas-phase medium which is difficult to dissolve in the medium to be detected, the enrichment unit is communicated with a discharge port of the first channel and can enrich the gas-phase medium doped with the medium to be detected, so that the gas-phase medium is collected above the medium to be detected, the detection unit is arranged at a top outlet of the enrichment unit and is used for detecting whether the gas-phase medium exists. The detection system carries out enrichment treatment on the medium to be detected discharged by the device to be detected through the enrichment unit so that the gas-phase medium doped with the medium to be detected can be collected above the medium to be detected, then the detection unit detects whether the gas-phase medium exists at the top outlet of the enrichment unit, and the detection operation of whether the gas-phase medium exists in the medium to be detected is completed.

Description

Detection system

Technical Field

The utility model relates to a chemical industry equipment technical field specifically relates to a detecting system.

Background

At present, in the chemical industry, in order to fully recycle cold and heat in the production process of the chemical process, the application of the heat exchanger is more and more extensive. However, the heat transfer materials (e.g., tube bundles or plates) for separating cold fluid from hot fluid in the heat exchanger are prevented from being damaged due to corrosion or other reasons during long-term operation, so that mutual interference between the cold fluid and the hot fluid is polluted, and a production accident is caused.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a detecting system to solve the heat transfer material of heat exchanger among the prior art and cause cold fluid, hot-fluid to take place to scurry the safety problem of pollution each other because of impaired.

In order to realize the above object, the utility model provides a detecting system, detecting system is including examining device, enrichment unit and detecting element, it has first passageway and the second passageway that does not communicate each other to examine the device, first passageway is used for the circulation to examine the medium, the second passageway is used for circulating the gaseous phase medium, the gaseous phase medium be difficult for in examine the medium, the enrichment unit with the discharge port intercommunication of first passageway and can be right it dopes to examine the medium the gaseous phase medium carries out the enrichment processing, so that the gaseous phase medium collects examine the top of examining the medium, the detecting element sets up the top exit of enrichment unit, the detecting element is used for detecting whether to exist the gaseous phase medium.

Optionally, the enrichment unit includes the enrichment jar that has the chamber, the top export sets up the top of enrichment jar is in order to supply gaseous phase medium discharges the chamber, the enrichment jar be provided with the lower part entry of the discharge port intercommunication of first passageway is in order to supply wait to examine the medium inflow the chamber.

Optionally, in the chamber, the medium to be detected is a liquid-phase medium, the enrichment tank includes an overflow port for the liquid-phase medium to be discharged from the chamber, the height of the overflow port is lower than that of the top outlet, the enrichment tank is communicated with an overflow pipe through the overflow port, and the height of the outlet of the overflow pipe is higher than that of the overflow port, so that the liquid-phase medium can be kept level at the overflow pipe and the chamber.

Optionally, detecting system is including setting up wait to examine the device with cooling unit between the enrichment tank, first passageway is discharged wait to examine when the medium is the gaseous state, cooling unit sets up to can be to the gaseous state wait to examine the medium and carry out cooling treatment in order to obtain liquid phase medium.

Optionally, the cooling unit is heat transfer device, heat transfer device sets up to can absorb the gaseous state through cold medium the heat that the medium carried is examined so that the gaseous state the medium liquefaction of examining becomes the liquid medium.

Optionally, the cooling medium is cooling water.

Optionally, the device to be detected is arranged as a heat exchanger.

Optionally, the detection unit is configured as an alarm, and the alarm is configured to be capable of detecting the gas-phase medium and giving an alarm.

Optionally, the alarm is portable.

Optionally, the enrichment unit is in on-off communication with the discharge port of the first channel via a valve.

Through the technical scheme, detecting system can be arranged in detecting whether to wait to have in the medium indissolvable in this gaseous phase medium of waiting to examine the medium, and is concrete, through connecting the enrichment unit in waiting to examine the discharge port department of first passageway in the device, so that wait to examine in the device that the medium can enter into the enrichment unit smoothly and carry out the enrichment processing, and then make gaseous phase medium can collect the top of waiting to examine the medium, and set up the detecting element in the top exit of enrichment unit, so that whether the top exit of detecting the enrichment unit exists the gaseous phase medium that collects, thereby accomplished and treated the detection operation whether there is gaseous phase medium in examining the medium.

Drawings

Fig. 1 is a schematic structural diagram of a detection system provided by the present invention.

Description of the reference numerals

1. A device to be inspected; 2. an outlet port; 3. a valve; 4. an enrichment tank; 5. a top outlet; 6. an overflow port; 7. a chamber; 8. an overflow pipe; 9. an outlet; 10. a detection unit; 11. a cooling unit.

Detailed Description

The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings. It is to be understood that the description of the embodiments herein is for purposes of illustration and explanation only and is not intended to limit the invention.

The utility model provides a detecting system, as shown in FIG. 1, detecting system is including waiting to examine device 1, enrichment unit and detecting element 10, it has first passageway and the second passageway that does not communicate each other to wait to examine device 1, first passageway is used for the circulation to examine the medium, the second passageway is used for circulating the gaseous phase medium, the gaseous phase medium be difficult to dissolve in wait to examine the medium, the enrichment unit with 2 intercommunications in discharge port of first passageway can be right wait to examine the medium doping the gaseous phase medium carries out the enrichment processing, so that the gaseous phase medium collects wait to examine the top of medium, detecting element 10 sets up the top export 5 departments of enrichment unit, detecting element 10 is used for detecting whether exists the gaseous phase medium.

Through the technical scheme, detecting system can be arranged in detecting whether to wait to have in the medium indissolvable in this gaseous phase medium of waiting to examine the medium, and is concrete, through connecting the enrichment unit in waiting to examine the discharge port department of first passageway in the device 1, so that wait to examine in the device 1 that the medium can enter into the enrichment unit smoothly and carry out the enrichment processing, and then make gaseous phase medium collect the top of waiting to examine the medium, and set up detecting element 10 in the top exit of enrichment unit, so that whether the top exit of detecting the enrichment unit exists the gaseous phase medium that collects, thereby accomplished and treated the detection operation whether there is gaseous phase medium in the medium of examining.

According to some embodiments of the present invention, the density of the medium to be inspected in the enrichment unit is greater than the density of the gas phase medium, for example, the medium to be inspected may be a liquid phase medium, specifically, may be desalted water (or various liquid phase media such as cooling water and other solutions), and the gas phase medium may be a gas that is difficult to dissolve in desalted water (or various liquid phase media such as cooling water and other solutions), for example, may be H₂Gas or COGases, and the like. The following description specifically describes, taking as an example that the first channel of the device 1 to be detected circulates demineralized water and the second channel circulates CO, when the operating pressure of the gas phase CO in the device 1 to be detected is higher than that of the liquid phase demineralized water, in order to detect whether leakage occurs between the first channel and the second channel of the device 1 to be detected, so as to accurately judge the operating condition of the device 1 to be detected, the detection system performs the following operations: first, the device to be tested 1 discharges the desalted water to the enrichment unit through the discharge port 2 of the first passage; then, the enrichment unit performs enrichment treatment (i.e., gas-liquid separation treatment) on the desalted water, specifically, if the desalted water is doped with CO, the CO is continuously collected above the desalted water, that is, the CO is collected in a space above the enrichment unit, and when the CO gas is collected to a certain amount, the CO gas escapes from a top outlet of the enrichment unit; finally, detecting a top outlet of the enrichment unit by using a detection unit 10 to detect whether CO gas is collected in the enrichment unit, wherein if the CO gas is detected, a leakage phenomenon exists between a first channel and a second channel of the device to be detected 1, and the device to be detected 1 needs to be maintained in time; otherwise, the inner leakage phenomenon does not exist in the device to be detected 1, and the maintenance is not needed, so that the safe operation of the device to be detected 1 is ensured.

Further, the enrichment unit is including the enrichment jar 4 that has chamber 7, top export 5 sets up the top of enrichment jar 4 is in order to supply gaseous phase medium discharges chamber 7, enrichment jar 4 be provided with the lower part entry of the discharge port 2 intercommunication of first passageway is in order to supply wait to examine the medium inflow chamber 7 carries out the enrichment and handles, and the structure is simpler, is convenient for make and process, and use cost is low. It is worth mentioning that in the enrichment unit, the chamber 7 of the enrichment tank 4 can enrich the medium to be detected (e.g., the above-mentioned liquid-phase medium) so that the gas-phase medium can be collected above the medium to be detected, that is, the gas-phase medium can be collected to the upper space of the chamber 7, and the medium to be detected can be collected to the lower space of the chamber 7; further, the enrichment tank 4 is provided with a single chamber 7, so that the gas-phase medium can be automatically collected above the medium to be detected after the enrichment treatment of the single chamber.

Further, in the chamber 7, the medium to be detected is a liquid phase medium, the enrichment tank 4 comprises an overflow port 6 for discharging the liquid phase medium out of the chamber 7, the height of the overflow port 6 is lower than that of the top outlet 5, the enrichment tank 4 is communicated with an overflow pipe 8 through the overflow port 6, and the height of the outlet 9 of the overflow pipe 8 is higher than the height of the overflow port 6, so that the liquid phase medium can be kept level between the overflow pipe 8 and the chamber 7, so that the enrichment tank 4 can form a liquid seal through the overflow pipe 8, prevent the gas phase medium enriched in the enrichment tank 4 from leaking out from the overflow port 6 through the overflow pipe 8, therefore, the detection result of the detection unit 10 can more accurately reflect the inner leakage condition of the device to be detected 1, and the detection accuracy of the detection system is ensured. It is worth mentioning that the top outlet 5 of the enrichment tank 4 may be arranged in on-off communication with the outside atmosphere, e.g. the enrichment tank 4 may be provided with a hand valve to open or close said top outlet 5. It should be noted that the outlet 9 of the overflow pipe 8 can be set to a maximum amount, which is beneficial for the liquid phase medium in the chamber 7 of the enrichment tank 4 to be enriched to a higher liquid level, and further reduces the space above the liquid level of the liquid phase medium in the chamber 7, and reduces the collection space of the gas phase medium, thereby improving the concentration of the gas phase medium, preventing the air leakage phenomenon of the enrichment tank 4, and being safe and efficient. In addition, the overflow pipe 8 may be in various forms, for example, a transparent pipe, so as to observe the liquid level and the liquid flow rate in the enrichment tank 1.

When in use, the specific operation process of the enrichment unit is as follows: firstly, opening a hand valve at the top outlet 5 of the enrichment tank 4, continuously raising the liquid level in the chamber 7 of the enrichment tank 4 until reaching the position of the overflow port 6 along with the continuous inflow of the medium to be detected into the enrichment tank 4, then starting the overflow of the medium to be detected in the chamber 7 of the enrichment tank 4 to the overflow pipe 8, and reasonably adjusting the flow rate of the medium to be detected entering the chamber 7 of the enrichment tank 4 according to the rise amount and the rise speed of the liquid level in the overflow pipe 8 (for example, the flow rate can be adjusted by a water pump and the like, or the flow rate can be adjusted by adjusting the opening degree of the valve 3 mentioned below); after the liquid level of the overflow pipe 8 is kept stable and unchanged, the hand valve at the top outlet 5 of the enrichment tank 4 is closed, so that a small amount of gas-phase medium dissolved or carried in the medium to be detected can be collected; then, the gas collection time is evaluated according to actual conditions (for example, seven eight hours), and the detection unit 10 is employed to detect the presence or absence of the gas-phase medium.

Further, detecting system is including setting up wait to examine device 1 with cooling unit 11 between the enrichment tank 4, first passageway is discharged wait to examine when examining the medium for the gaseous state, cooling unit 11 sets up to can be to the gaseous state wait to examine the medium and carry out cooling treatment in order to obtain the liquid phase medium for detecting system can be arranged in waiting to examine the medium of examining that exists with the steam form in device 1, has enlarged detecting system's application scope, can also reduce the temperature of waiting to examine the medium, prevents to examine that medium temperature is too high and damage detecting element 10 (for example, because steam temperature is higher, causes the direct failure of alarm or damage that the following mentions easily).

According to other embodiments of the present invention, the medium to be inspected flowing through the first channel of the apparatus to be inspected 1 may be set to be in a gaseous phase, for example, in the form of steam; taking the medium to be detected as water vapor as an example, the water vapor in the first channel is used as hot fluid, the temperature of the gas-phase medium in the second channel is lower than that of the water vapor, that is, the gas-phase medium is cold fluid, specifically, the water vapor flows into the first channel to heat the gas-phase medium, and then is discharged from the discharge port 2 of the first channel, then the water vapor enters the cooling unit 1 to be cooled to liquefy into water, and then the water flows into the enrichment tank 4 to be enriched, so that the detection unit 10 detects whether the gas-phase medium exists at the top outlet of the enrichment tank 4; or, the water in the first channel is used as a cold fluid, the temperature of the gas-phase medium in the second channel is higher than the boiling point of water, that is, the gas-phase medium is a hot fluid, specifically, the water flows into the first channel to absorb the heat carried by the gas-phase medium to be gasified into water vapor, then the water vapor is discharged from the discharge port 2 of the first channel, then the water vapor enters the cooling unit 1 to be cooled to be liquefied into water, and then the water flows into the enrichment tank 4 to be enriched, so that the detection unit 10 detects whether the gas-phase medium exists at the top outlet of the enrichment tank 4.

Further, cooling unit 11 is heat transfer device, heat transfer device sets up to absorbing the gaseous state through the cold medium wait to examine the heat that the medium carried so that the gaseous state wait to examine the medium liquefaction become the liquid phase medium, the structure is more simple, and the cost of detection has been practiced thrift in preparation and processing of being convenient for.

Furthermore, the cold medium adopts cooling water, so that the detection cost is further reduced.

Further, wait to examine device 1 and set up to the heat exchanger, this detecting system can in time detect the interior hourglass condition of heat exchanger, prevents the trouble operation of heat exchanger, and is more safe. Further, be provided with valve 3 between the discharge port of heat exchanger and the cooling unit 11 to intercommunication or disconnection heat exchanger and cooling unit 11, the detecting system of being convenient for can in time detect according to the normal maintenance cycle of heat exchanger or special detection demand, has reduced the cost of overhaul. When the medium to be detected is in a steam form in the heat exchanger, the discharge port 2 of the heat exchanger can be a high-point exhaust and guide shower position of a first channel of the heat exchanger.

Further, the detection unit 10 is set as an alarm which is set to be capable of detecting the gas-phase medium and giving an alarm so as to rapidly detect and visually judge whether the inner leakage condition exists in the heat exchanger. Taking a gas-phase medium as CO gas as an example, the alarm is set as a CO alarm, when the CO alarm is used, the alarm can rapidly detect whether CO exists, if CO exists, the alarm gives an alarm (for example, a light is turned on or a whistle is made), and if CO does not exist, the alarm does not give an alarm.

Furthermore, the alarm is portable, is convenient to carry, is convenient to reasonably use according to detection requirements, improves the utilization rate of the alarm, namely, when the heat exchanger does not need to detect, the alarm can be put into other systems for use.

The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited thereto. In the technical idea scope of the present invention, it is possible to provide a solution of the present invention with a plurality of simple modifications to avoid unnecessary repetition, and the present invention is not described separately for various possible combinations. These simple variations and combinations should also be considered as disclosed in the present invention, all falling within the scope of protection of the present invention.

Claims

1. The utility model provides a detection system, characterized in that, detection system is including examining device (1), enrichment unit and detecting element (10), it has first passageway and the second passageway that does not communicate each other to examine device (1), first passageway is used for the circulation to examine the medium, the second passageway is used for circulating gaseous medium, gaseous medium is difficult to dissolve in examine the medium, enrichment unit with discharge port (2) intercommunication of first passageway and can be right it dopes to examine the medium gaseous medium carries out the enrichment processing, so that gaseous medium collects examine the top of medium, detecting element (10) set up the top export (5) department of enrichment unit, detecting element (10) are used for detecting whether exist gaseous medium.

2. A detection system according to claim 1, characterized in that the enrichment unit comprises an enrichment tank (4) with a chamber (7), the top outlet (5) being arranged at the top of the enrichment tank (4) for the exit of the gaseous medium out of the chamber (7), the enrichment tank (4) being provided with a lower inlet communicating with the discharge outlet (2) of the first channel for the inflow of the medium to be examined into the chamber (7).

3. Detection system according to claim 2, characterized in that, inside the chamber (7), the medium to be examined is a liquid medium, the enrichment tank (4) comprises an overflow (6) for the liquid medium to exit the chamber (7), the overflow (6) has a height lower than the top outlet (5), the enrichment tank (4) communicates with an overflow pipe (8) through the overflow (6), and the overflow pipe (8) has an outlet (9) with a height higher than the overflow (6) so that the liquid medium can be kept level at the overflow pipe (8) and the chamber (7).

4. A detection system according to claim 3, characterized in that the detection system comprises a cooling unit (11) arranged between the device to be inspected (1) and the enrichment tank (4), the cooling unit (11) being arranged to enable a cooling treatment of the medium to be inspected in a gaseous state to obtain the liquid-phase medium when the medium to be inspected exiting the first passage is in a gaseous state.

5. A detection system according to claim 4, wherein the cooling unit (11) is a heat exchange device arranged to be able to absorb heat carried by the gaseous medium to be examined by means of a cold medium to liquefy the gaseous medium to be examined into the liquid medium.

6. The detection system of claim 5, wherein the cold medium is cooling water.

7. Detection system according to claim 1, characterized in that the device to be inspected (1) is provided as a heat exchanger.

8. A detection system according to claim 1, characterized in that the detection unit (10) is arranged as an alarm arranged to be able to detect the gaseous medium and to issue an alarm.

9. A detection system according to claim 8, wherein the alarm is arranged to be portable.

10. A detection system according to any one of claims 1-9, wherein the enrichment unit is in on-off communication with the discharge opening (2) of the first channel via a valve (3).