Water seal well liquid level measuring device

Abstract

The utility model relates to the technical field of instrument measurement and control, in particular to a water seal well liquid level measuring device which comprises a water seal well body, a well lid, a water inlet pipe, a water outlet pipe and a liquid level measuring device body. A liquid level measuring device is arranged in the water seal well body and comprises a guide fixing pipe, a ruler rod and a floating ball. The water seal well is reasonable and compact in structure and convenient to use, the floating ball and the ruler rod can stably float up and down in the guide fixing pipe by arranging the liquid level measuring device in the water seal well, and the liquid level display mark is arranged on the ruler rod, so that an operator does not need to open a well lid or change the structure of the well lid; the height of the liquid level in a water seal well can be rapidly and accurately observed in a long distance, and the problem that the liquid level in a water seal is too low is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of instrument measurement and control, and is a water seal well liquid level measuring device. Background Art

[0002] According to GB 50160-2008 "Petrochemical Enterprise Design Fire Protection Standard (2018 Edition)" 7.3.3, the drainage outlet of the tank group of the production sewage pipeline should be equipped with a water seal, and the height of the water seal shall not be less than 250mm. However, in actual operation, the operator determines whether the water seal liquid level meets the requirements by opening the manhole cover and measuring the water seal height. For example, a total of 22 water seal wells are set up in the tank area of ​​the 1.2 million tons / year PTA project of the chemical enterprise. The conventional observation method not only causes a large workload for the operators, but also easily causes negligence, missed measurements and other factors that lead to the liquid level in the water seal well not meeting the requirements. Secondly, the method of measuring by opening the manhole cover will also cause the measurement personnel to mistakenly enter the confined space in the well or accidentally slip and fall into the well, which poses a great safety hazard. Summary of the invention

[0003] The utility model provides a water seal well liquid level measuring device, which overcomes the above-mentioned deficiencies of the prior art and can quickly and accurately observe the water seal well liquid level height to avoid the problem of too low liquid level in the water seal.

[0004] The technical scheme of the utility model is realized through the following measures: a water seal well liquid level measuring device, comprising a water seal well body, a well cover, a water inlet pipe, a water outlet pipe and a liquid level measuring device, the left inlet and the right outlet of the lower part of the water seal well body are respectively fixedly connected with the water inlet pipe and the water outlet pipe, the well cover is installed on the water seal well body, the water seal well body is provided with a liquid level measuring device, the liquid level measuring device comprises a guide fixed pipe, a ruler rod and a float, the water seal well body is fixedly installed with a guide fixed pipe, the lower end of the guide fixed pipe is located above the bottom of the water seal well body, the guide fixed pipe is provided with a ruler rod, the upper part of the ruler rod passes through the well cover and extends to the outside of the water seal well body, a liquid level display mark is provided on the ruler rod outside the water seal well body, and the lower end of the ruler rod is provided with a float ball that can make the ruler rod suspend on the liquid surface of the water seal well body.

[0005] The following are further optimizations and / or improvements to the above utility model technical solution:

[0006] The above-mentioned liquid level display mark includes a first marking area and a second marking area, and the first marking area and the second marking area are arranged in sequence from top to bottom on the upper part of the ruler.

[0007] The upper and lower parts of the guide fixed tube are provided with multiple layers of hole groups at intervals, and each layer of hole group has at least two liquid inlet holes distributed at intervals along the circumference.

[0008] The above also includes a support base, and the bottom of the guide fixed tube is fixedly installed with the support base, and the support base is in a four-claw shape.

[0009] The above also includes a first pressure sensor, a second pressure sensor, a controller and an alarm. The first pressure sensor is provided on the outer side of the upper part of the ruler rod, and the second pressure sensor is provided on the outer side of the lower part of the ruler rod corresponding to the position below the manhole cover. The first pressure sensor and the second pressure sensor are respectively connected to the controller, and the controller is connected to the alarm.

[0010] The ruler rod and the float are made of polypropylene.

[0011] The lower end of the guide fixed pipe is located above the bottom of the water seal well body.

[0012] The utility model has a reasonable and compact structure and is easy to use. A liquid level measuring device is arranged in the water seal well so that the float and the ruler can float up and down stably in the guide fixed pipe, and a liquid level display mark is arranged on the ruler, so that the operator does not need to open the well cover or change the well cover structure, and can quickly and accurately observe the liquid level height in the water seal well at a long distance, thereby avoiding the problem of too low liquid level in the water seal. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Attached Figure 1 It is a structural schematic diagram of the utility model.

[0014] Attached Figure 1 The codes are as follows: 1 for the water seal well body, 2 for the well cover, 3 for the water inlet pipe, 4 for the water outlet pipe, 5 for the guide fixed pipe, 6 for the ruler rod, 7 for the float, 8 for the first identification area, 9 for the second identification area, 10 for the support base, and 11 for the liquid inlet hole. DETAILED DESCRIPTION

[0015] The present invention is not limited by the following embodiments, and specific implementation methods can be determined according to the technical solution of the present invention and actual conditions.

[0016] In the present invention, unless otherwise specified, the devices and apparatuses used are the devices and apparatuses known and used in the art. For example, the first pressure sensor and the second pressure sensor are the known and used contact pressure sensors, and the controller is the known and used DSC controller. The model of the DCS controller may be the CS3000 controller produced by Yokogawa Corporation of Japan.

[0017] In the present invention, for the convenience of description, the relative position relationship of each component is described according to the attached manual. Figure 1 The layout is described in detail, such as the positional relationship of front, back, top, bottom, left, right, etc., which is based on the attached manual. Figure 1 The layout direction is determined by the

[0018] The present invention is further described below in conjunction with the embodiments and drawings:

[0019] Embodiment 1: As attached Figure 1 As shown, the water seal well liquid level measuring device includes a water seal well body 1, a well cover 2, a water inlet pipe 3, a water outlet pipe 4 and a liquid level measuring device. The left inlet and the right outlet of the lower part of the water seal well body 1 are fixedly connected with the water inlet pipe 3 and the water outlet pipe 4 respectively. The well cover 2 is installed on the water seal well body 1. The water seal well body 1 is provided with a liquid level measuring device. The liquid level measuring device includes a guide fixed pipe 5, a ruler rod 6 and a float 7. The guide fixed pipe 5 is fixedly installed in the water seal well body 1. The guide fixed pipe 5 is provided with a ruler rod 6. The upper part of the ruler rod 6 passes through the well cover 2 and extends to the outside of the water seal well body 1. A liquid level display mark is arranged on the ruler rod 6 outside the water seal well body 1. The lower end of the ruler rod 6 is provided with a float 7 which can make the ruler rod 6 suspend on the liquid surface of the water seal well body 1.

[0020] The utility model has a reasonable and compact structure and is easy to use. A liquid level measuring device is arranged in the water seal well body 1, so that the float 7 and the ruler 6 can float up and down stably in the guide fixed pipe 5, and a liquid level display mark is arranged on the ruler 6, so that the operator does not need to open the manhole cover 2 or change the structure of the manhole cover 2, and can quickly and accurately observe the liquid level height in the water seal well at a long distance, thereby avoiding the problem of too low liquid level in the water seal, and further avoiding the risk of fire and explosion caused by downstream flammable and explosive gases when the liquid level in the water seal well is insufficient, and reducing the safety risk of operators frequently opening and closing the manhole cover 2, causing people to fall into the well.

[0021] The above-mentioned water seal well liquid level measuring device can be further optimized and / or improved according to actual needs:

[0022] Embodiment 2: It is different from Embodiment 1 in that: Figure 1 As shown, the liquid level display mark includes a first identification area 8 and a second identification area 9, and the first identification area 8 and the second identification area 9 are sequentially arranged on the upper part of the ruler 6 from top to bottom. According to the requirements, the first identification area 8 is red, the second identification area 9 is green, the height of the first identification area 8 is 250mm, the safety liquid level on the inner side of the lower part of the water seal well body 1 is 250mm, and the height of the first identification area 8 is the same as the height of the safety liquid level. During use, when the liquid level in the water seal well is lower than 250mm, the liquid level display mark of the ruler 6 is in the first identification area 8 (red), when the liquid level of the water seal well is just at 250mm, that is, the liquid level of the water seal well is at the safety level of 250mm, the liquid level display mark of the ruler 6 is at the boundary of the first identification area 8 and the second identification area 9 (the boundary between red and green), when the liquid level of the water seal well continues to rise more than 250mm, the liquid level display mark of the ruler 6 is in the second identification area 9 (green). According to the requirements, the marking line of the liquid level display mark is marked with anti-corrosion paint.

[0023] Embodiment 3: It differs from Embodiment 1 to Embodiment 2 in that: Figure 1As shown, the lower part of the guide fixed tube 5 is provided with multiple layers of hole groups at intervals on the upper and lower parts, and each layer of hole groups is provided with at least two liquid inlet holes 11 at intervals along the circumference. Through such an arrangement, it is convenient for liquid to enter the guide fixed tube 5.

[0024] Embodiment 4: It differs from Embodiments 1 to 3 in that: Figure 1 As shown, it also includes a support base 10, and the bottom of the guide fixing tube 5 is fixedly installed with the support base 10, and the support base 10 is in a four-claw shape. By setting the support base 10, it is convenient to fix the guide fixing tube 5.

[0025] Embodiment 5: It differs from Embodiments 1 to 4 in that: Figure 1 As shown, it also includes a first pressure sensor, a second pressure sensor, a controller and an alarm. The first pressure sensor is provided on the outer side of the upper part of the ruler rod 6, and the second pressure sensor is provided on the outer side of the lower part of the ruler rod 6 corresponding to the position below the manhole cover 2. The first pressure sensor and the second pressure sensor are respectively connected to the controller, and the controller is connected to the alarm. During use, by setting the first pressure sensor, when the first pressure sensor contacts the upper side of the manhole cover 2, it can be prompted that the liquid level in the water seal well body 1 is too low; by setting the second pressure sensor, when the second pressure sensor contacts the lower side of the manhole cover 2, it can be prompted that the liquid level in the water seal well body 1 is too high; by setting the controller and the alarm, a reminder can be achieved when the liquid level in the water seal well body 1 is too high or too low.

[0026] As required, the ruler rod 6 and the float 7 are made of polypropylene. Since the ruler rod 6 and the float 7 are both made of light foam polypropylene PPR material, they are convenient to float on the liquid surface of the water seal well body 1.

[0027] As required, the lower end of the guide fixed pipe 5 is located above the bottom of the water seal well body 1. Through such an arrangement, liquid can enter the guide fixed pipe 5 from the side liquid inlet hole 11, and can also quickly enter the guide fixed pipe 5 from the bottom.

[0028] The above technical features constitute the embodiments of the present utility model, which have strong adaptability and implementation effect. Non-essential technical features can be added or reduced according to actual needs to meet the requirements of different situations.

[0029] The usage process of the embodiment of the utility model is as follows: first, the sewage well drainage pipe 3 is discharged into the water seal well body 1. When the liquid level display mark of the ruler 6 is observed to be in the first identification area 8 (red), it indicates that the liquid level in the water seal well body 1 is lower than 250mm and water needs to be replenished in time; when the liquid level display mark of the ruler 6 is at the boundary between the first identification area 8 and the second identification area 9 (the boundary between red and green), it indicates that the liquid level of the water seal well is just at 250mm, which meets the plugging requirements; when the liquid level display mark of the ruler 6 is in the second identification area 9 (green), it indicates that the liquid level of the water seal well exceeds 250mm, and the production sewage is sent out through the outlet pipe 4.

Claims

1. A water seal well liquid level measuring device, characterized in that It includes a water seal well body, a well cover, a water inlet pipe, a water outlet pipe and a liquid level measuring device. The left inlet and the right outlet at the lower part of the water seal well body are respectively fixedly connected with the water inlet pipe and the water outlet pipe. The well cover is installed on the water seal well body. The water seal well body is provided with a liquid level measuring device. The liquid level measuring device includes a guide fixed pipe, a ruler rod and a float. A guide fixed pipe is fixedly installed in the water seal well body. The lower end of the guide fixed pipe is located above the bottom of the water seal well body. A ruler rod is provided in the guide fixed pipe. The upper part of the ruler rod passes through the well cover and extends to the outside of the water seal well body. A liquid level display mark is provided on the ruler rod outside the water seal well body. A float is provided at the lower end of the ruler rod so that the ruler rod can be suspended on the liquid surface of the water seal well body.

2. The water seal well liquid level measuring device according to claim 1 is characterized in that The liquid level display mark comprises a first mark area and a second mark area, and the first mark area and the second mark area are sequentially arranged on the upper part of the ruler from top to bottom.

3. The water seal well liquid level measuring device according to claim 1 or 2, characterized in that Multiple layers of hole groups are arranged at intervals on the upper and lower parts of the lower part of the guide fixed pipe, and each layer of hole group has at least two liquid inlet holes distributed at intervals along the circumference; through such an arrangement, the liquid in the water seal well body quickly enters the guide fixed pipe.

4. The water seal well liquid level measuring device according to claim 1 or 2, characterized in that It also includes a support base, on the bottom of the guide fixed pipe is fixedly installed the support base, the support base is in the shape of four claws; through such an arrangement, the silt in the well is prevented from blocking the lower end of the guide pipe.

5. The water seal well liquid level measuring device according to claim 3 is characterized in that It also includes a support base, on the bottom of the guide fixing tube is fixedly installed the support base, the support base is in a four-claw shape.

6. The water seal well liquid level measuring device according to claim 1, 2 or 5, characterized in that It also includes a first pressure sensor, a second pressure sensor, a controller and an alarm. The first pressure sensor is provided on the outer side of the upper part of the ruler rod, and the second pressure sensor is provided on the outer side of the lower part of the ruler rod corresponding to the position below the manhole cover. The first pressure sensor and the second pressure sensor are respectively connected to the controller, and the controller is connected to the alarm.

7. The water seal well liquid level measuring device according to claim 3 is characterized in that It also includes a first pressure sensor, a second pressure sensor, a controller and an alarm. The first pressure sensor is provided on the outer side of the upper part of the ruler rod, and the second pressure sensor is provided on the outer side of the lower part of the ruler rod corresponding to the position below the manhole cover. The first pressure sensor and the second pressure sensor are respectively connected to the controller, and the controller is connected to the alarm.

8. The water seal well liquid level measuring device according to claim 4 is characterized in that It also includes a first pressure sensor, a second pressure sensor, a controller and an alarm. The first pressure sensor is provided on the outer side of the upper part of the ruler rod, and the second pressure sensor is provided on the outer side of the lower part of the ruler rod corresponding to the position below the manhole cover. The first pressure sensor and the second pressure sensor are respectively connected to the controller, and the controller is connected to the alarm.

9. The water seal well liquid level measuring device according to claim 1 or 2 or 5 or 7 or 8, characterized in that The rod and float are made of polypropylene.

10. The water seal well liquid level measuring device according to claim 6, characterized in that The rod and float are made of polypropylene.

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