Condenser circulating water scaling inspection device

Abstract

The utility model relates to a condenser circulating water scaling inspection device. An end cover; one end of the scaling detection head is a connecting end, the other end of the scaling detection head is a detection end, a flange plate is welded to the end face of the connecting end of the scaling detection head, the scaling detection head is vertically connected to the end cover through the flange plate in a threaded mode, and a detection element containing groove is formed in the detection end of the scaling detection head; a protective sleeve; the detection element placing groove is formed in the scaling detection head, the distance sensor can be placed in the detection element placing groove, the distance value in the cleaning state is recorded through the distance sensor after the condenser is cleaned, the current scaling thickness condition in the condenser can be known only by periodically measuring the distance value subsequently, the detection process is simple, and the detection efficiency is high. In addition, the installation mode is simple, installation can be achieved only by means of the flange at the drain port of the condenser, and convenience is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of condenser operation and maintenance equipment, in particular to a condenser circulating water scaling detection device. Background Art

[0002] In thermal power generation, chemical production and large-scale industrial cooling systems, condensers are important heat exchange equipment, and their performance directly affects the operating efficiency and safety of the entire system. The condenser condenses steam into water and recovers its latent heat of vaporization through heat exchange between circulating water and steam. However, after long-term operation, impurities, minerals and microorganisms in the circulating water will be deposited on the inner wall of the condenser and the circulating water pipeline to form scale. These scales will not only reduce the heat exchange efficiency and increase energy consumption, but may also cause local overheating, corrosion and other problems, seriously affecting the stable operation and service life of the equipment;

[0003] In order to avoid unnecessary damage to the internal structure of the condenser, the condenser needs to be cleaned and descaled regularly. However, the activation of each condenser equipment is not the same, which means that it is not necessary to clean the condenser with a low activation rate regularly. Therefore, the thickness of the condenser inner wall structure can be tested before cleaning. Existing online scaling detection equipment mostly relies on ultrasonic, laser, infrared and other sensor technologies to indirectly evaluate the degree of scaling by measuring parameters such as thickness changes and reflection characteristics of the inner wall of the pipeline or a specific area.

[0004] However, these devices often have problems such as complex installation, high maintenance costs, and susceptibility to environmental interference, which make it difficult to meet the actual needs of industrial sites. Therefore, we need to reduce the structural complexity of the detection equipment and achieve the purpose of scaling thickness detection. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a condenser circulating water scaling detection device which has a simple structure and can detect the thickness of the inner wall of the condenser in view of the deficiencies of the prior art.

[0006] The technical problem to be solved by the utility model is achieved through the following technical solutions: a condenser circulating water scaling inspection device, the inspection device comprising:

[0007] End cover: a plurality of bolt holes Ⅰ are provided on the edge of the end cover, and the end cover is detachably connected to the condenser drain flange through bolt fasteners;

[0008] A scaling detection head, one end of the scaling detection head is a connection end, and the other end is a detection end. A flange is welded on the end surface of the connection end of the scaling detection head. A plurality of bolt holes II are provided at the center of the end cover. The scaling detection head is vertically threadedly connected to the end cover through the flange. A detection element placement groove for placing a distance sensor is provided on the detection end of the scaling detection head. The opening direction of the detection element placement groove is parallel to the axis of the scaling detection head.

[0009] A protective sleeve is provided with an external thread on the outer circumferential surface of the detection end of the scaling detection head, an internal thread screwed to the external thread is provided on the inner circumferential surface of one end of the protective sleeve, a water blocking platform is fixed on the inner circumferential surface of the middle part of the protective sleeve, and a through hole is reserved in the middle part of the water blocking platform to facilitate the normal operation of the distance sensor in the detection element placement groove.

[0010] The technical problem to be solved by the utility model can also be achieved through the following technical solutions. The above-mentioned condenser circulating water scaling inspection device has an observation port in the middle of the end cover.

[0011] The technical problem to be solved by the utility model can also be achieved by the following technical solutions. In the above-mentioned condenser circulating water scaling inspection device, a light source is embedded on the end cover beside the observation port.

[0012] The technical problem to be solved by the utility model can also be achieved through the following technical solutions. The above-mentioned condenser circulating water scaling inspection device has a material reduction groove on the scaling detection head, and the material reduction groove is located between the detection element placement groove and the scaling detection head connection end.

[0013] The technical problem to be solved by the utility model can also be achieved through the following technical solutions. In the above-mentioned condenser circulating water scaling inspection device, there are two detection element placement slots.

[0014] Compared with the prior art, the beneficial technical effects of the utility model are:

[0015] (1) A detection element placement slot is provided in the scaling detection head, and a distance sensor can be placed in the detection element placement slot. After the condenser is cleaned, the distance value in the clean state is recorded by the distance sensor. Subsequently, only the distance value needs to be measured regularly to know the current scaling thickness inside the condenser. The detection process is simple, and the installation method is also simple. It can be installed with the flange at the drain port of the condenser, which is very convenient.

[0016] (2) A protective sleeve is provided on the scaling detection head, and a water blocking platform is provided inside the protective sleeve. Water dripping from the inner wall of the condenser can be blocked by the protective sleeve and will not flow into the detection element placement groove. The water blocking platform inside the protective sleeve can also achieve this effect;

[0017] (3) An observation port is also provided on the end cover, through which the operator can observe the internal conditions of the condenser. A light source is also provided next to the observation port, which makes it easier for the observer to see the conditions of the measured area. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the main structure of the utility model when in use;

[0019] Figure 2 It is a schematic diagram of the structural explosion of the utility model.

[0020] Reference numerals:

[0021] 1. End cover; 2. Bolt hole I; 3. Observation port; 4. Light source; 5. Scaling detection head; 6. Flange; 7. Bolt hole II; 8. Distance sensor; 9. Detection element placement groove; 10. Reduction groove; 11. Protection sleeve; 12. External thread; 13. Internal thread; 14. Water blocking platform. DETAILED DESCRIPTION

[0022] The specific technical solutions of the present invention are further described below with reference to the accompanying drawings, so as to facilitate further understanding of the present invention by those skilled in the art, and do not constitute any limitation to the rights thereof.

[0023] Example 1, reference Figure 1-2 , a condenser circulating water scaling inspection device, the inspection device comprising;

[0024] The end cover 1 is formed into a roughly disc-shaped structure. A plurality of bolt holes Ⅰ2 are provided on the edge of the end cover 1. The end cover 1 is detachably connected to the condenser drain flange by bolt fasteners. An observation port 3 is provided in the middle of the end cover 1. The observation port 3 may be a circular port. A light source 4 is embedded on the end cover 1 beside the observation port 3. The light source 4 may be an LED lamp.

[0025] The scaling detection head 5 is formed into a roughly cylindrical structure, one end of the scaling detection head 5 is a connecting end, and the other end is a detecting end. A flange 6 is welded on the end face of the connecting end of the scaling detection head 5, and a plurality of bolt holes II7 are provided in the center of the end cover 1. The scaling detection head 5 is vertically threadedly connected to the end cover 1 through the flange 6. A detection element placement groove 9 for placing a distance sensor 8 is provided on the detecting end of the scaling detection head 5. The detection element placement groove 9 is formed into a roughly circular groove body structure. The opening direction of the detection element placement groove 9 is parallel to the axis of the scaling detection head 5. Two detection element placement grooves 9 are provided at intervals. A material reduction groove 10 is provided on the scaling detection head 5. The material reduction groove 10 is formed into a roughly square groove. The material reduction groove 10 is located between the detection element placement groove 9 and the connecting end of the scaling detection head 5. The design purpose of the material reduction groove 10 is to reduce the weight of the scaling detection head 5.

[0026] The protective sleeve 11 is formed as a roughly circular sleeve with a through middle. An external thread 12 is provided on the outer circumferential surface of the detection end of the scaling detection head 5, and an internal thread 13 screwed to the external thread 12 is provided on the inner circumferential surface of one end of the protective sleeve 11. A water blocking platform 14 is fixedly provided on the inner circumferential surface of the middle part of the protective sleeve 11. The cross section of the water blocking platform 14 is formed in a roughly circular ring shape. A through hole is reserved in the middle of the water blocking platform 14 to facilitate the normal operation of the distance sensor 8 in the detection element placement groove 9.

[0027] The operating principle of the condenser circulating water scaling inspection device is:

[0028] (1) Installation: Place the detection element such as the distance sensor 8 in the detection element placement groove 9, then thread the protection sleeve onto the scaling detection head 5, and then flange the end cover 1 onto the condenser drain flange;

[0029] (2) Detection: The distance between the inner wall of the condenser and the distance sensor 8 is detected by the distance sensor 8, and the measured value is compared with the distance measured when the condenser is cleaned, as follows:

[0030] 1) When the difference between the two is ≤1mm, no cleaning is required;

[0031] 2) When the difference between the two is 1mm≤3mm, selective cleaning can be performed;

[0032] 3) When the difference between the two is ≥3mm, the condenser needs to be cleaned and descaled.

Claims

1. A condenser circulating water scaling inspection device, characterized in that: The inspection device comprises: End cover: a plurality of bolt holes Ⅰ are provided on the edge of the end cover, and the end cover is detachably connected to the condenser drain flange through bolt fasteners; A scaling detection head, one end of the scaling detection head is a connection end, and the other end is a detection end. A flange is welded on the end surface of the connection end of the scaling detection head. A plurality of bolt holes II are provided at the center of the end cover. The scaling detection head is vertically threadedly connected to the end cover through the flange. A detection element placement groove for placing a distance sensor is provided on the detection end of the scaling detection head. The opening direction of the detection element placement groove is parallel to the axis of the scaling detection head. A protective sleeve is provided with an external thread on the outer circumferential surface of the detection end of the scaling detection head, an internal thread screwed to the external thread is provided on the inner circumferential surface of one end of the protective sleeve, a water blocking platform is fixed on the inner circumferential surface of the middle part of the protective sleeve, and a through hole is reserved in the middle part of the water blocking platform to facilitate the normal operation of the distance sensor in the detection element placement groove.

2. A condenser circulating water scaling inspection device according to claim 1, characterized in that: An observation port is provided in the middle of the end cover.

3. A condenser circulating water scaling inspection device according to claim 1, characterized in that: A light source is embedded on the end cover beside the observation port.

4. A condenser circulating water scaling inspection device according to claim 1, characterized in that: A material reduction groove is provided on the scaling detection head, and the material reduction groove is located between the detection element placement groove and the scaling detection head connection end.

5. A condenser circulating water scaling inspection device according to claim 1, characterized in that: There are two detection element placement slots spaced apart.

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