CN212257202U

CN212257202U - Liquid level detection protection device

Info

Publication number: CN212257202U
Application number: CN202021078154.XU
Authority: CN
Inventors: 杜加价
Original assignee: Tongling Xinzhou Electronic Technology Co ltd
Current assignee: Tongling Xinzhou Electronic Technology Co ltd
Priority date: 2020-06-12
Filing date: 2020-06-12
Publication date: 2020-12-29
Anticipated expiration: 2030-06-12

Abstract

The utility model discloses a liquid level detection protection device, including a jar body, the top intercommunication of jar body has the feed liquor pipe, and the bottom intercommunication of jar body has the drain pipe, installs liquid level induction system on the jar body, all installs automatically controlled valve, liquid level induction system electric connection automatically controlled valve on feed liquor pipe and the drain pipe. The liquid level sensing device comprises a vertical pipe, the bottom end of the vertical pipe is communicated with the top end of the tank body, an inner cavity of the vertical pipe is provided with a tension sensor, the top end of the tension sensor is fixedly connected with the top end of the vertical pipe, the tension sensor is electrically connected with a controller, an induction rod is arranged below the tension sensor, the top end of the induction rod is fixedly connected with the bottom end of the tension sensor, and the bottom end of the induction rod is inserted into the bottom end of the inner cavity of the tank body. The liquid level is indirectly reacted by utilizing buoyancy, the gravity of the induction rod after being influenced by the buoyancy is measured, and then the submergence height of the induction rod is calculated through a buoyancy formula, so that the submergence height of the induction rod can indirectly express the liquid level height in the tank body.

Description

Liquid level detection protection device

Technical Field

The utility model belongs to the technical field of condenser production facility, in particular to liquid level detection protection device.

Background

The liquid filler is required to be poured into the capacitor shell in the production of the capacitor to play a role in heat dissipation protection of the capacitor core group, the filler is required to be heated and insulated in the filling equipment, and the viscosity of the filler can be guaranteed to be maintained at a fixed value only by keeping a certain temperature, so that the efficiency of filling work and the control precision of filling quantity are guaranteed. Because the tank body of the filling equipment is provided with the heating device for insulating the filler, the liquid level of the filler is required to be ensured not to be lower than that of the heating device in daily work, and the heating device is prevented from being damaged due to dry burning and even causing the safety accidents of electric leakage and fire; meanwhile, the filler is required to be controlled not to overflow due to the fact that the filler cannot be excessive when the filler is injected into a tank body of the filling machine, equipment is damaged due to fouling, equipment utilization rate is greatly reduced due to shutdown maintenance and cleaning, and production efficiency is reduced. The upper and lower limits of the liquid level in the tank body are detected by adopting a buoyancy switch device or a non-contact liquid level detection device in the tank body of early perfusion equipment, and the modes are easy to be stuck or corroded to cause the failure of a detection switch due to the physical and chemical properties of a filling agent so as to cause equipment failure; also because jar body material wall thickness, filler kind difference leads to contactless level sensor work failure to cause equipment trouble, has certain defect.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to the problem of the existence of above-mentioned prior art, provide a liquid level detection protection device.

The utility model discloses a following technical means realizes solving above-mentioned technical problem: the utility model provides a liquid level detection protection device, includes a jar body, the top intercommunication of jar body has the feed liquor pipe, and the bottom intercommunication of jar body has the drain pipe, install liquid level induction system on the jar body, all install automatically controlled valve on feed liquor pipe and the drain pipe, liquid level induction system electric connection automatically controlled valve.

Further, liquid level induction system includes the riser, the bottom of riser communicates the top of the jar body, and the vertical setting of riser, the inner chamber of riser is provided with force sensor, force sensor's top fixed connection riser's inner chamber top, and force sensor electric connection controller, the electric control valve on controller electric connection feed liquor pipe and the drain pipe respectively, force sensor's below is provided with the response pole, the top fixed connection force sensor's of response pole bottom, and the bottom of the response pole inserts the inner chamber bottom of the jar body.

Further, the density of the induction rod is larger than that of the liquid loaded in the tank body.

Further, the liquid level sensing device further comprises an anti-interference device.

Further, the interference preventing device comprises a plurality of sleeves, through holes are evenly formed in the wall of each sleeve, the plurality of sleeves are coaxially sleeved outside the induction rod by taking the induction rod as a center, the bottom end of each sleeve and the bottom end of each sleeve are fixedly connected with the top and the bottom of the inner cavity of the tank body respectively, the inner diameter of each sleeve is larger than the outer diameter of the induction rod, and the inner diameters of the plurality of sleeves are different.

Furthermore, the through holes on the adjacent sleeves are staggered.

Furthermore, the interference preventing device further comprises a plurality of lifting support legs and a leveling bubble, wherein the lifting support legs are arranged at the bottom end of the tank body, and the leveling bubble is fixed on the tank body.

Further, the liftable stabilizer blade includes the internal thread pipe, the bottom of the top fixed connection jar body of internal thread pipe, the bottom screw in of internal thread pipe have with internal thread pipe complex threaded rod.

Further, the interference preventing device further comprises a buffer cover, the pipe orifices of the liquid inlet pipe and the liquid outlet pipe communicated with the inner cavity of the tank body are covered with the buffer cover, the buffer cover is fixedly connected with the tank body on the inner wall of the tank body, and a plurality of liquid penetrating holes are uniformly formed in the buffer cover.

The utility model has the advantages that: this technical scheme provides a liquid level detection protection device utilizes buoyancy indirect reaction liquid level, adopts the gravity of measuring after the induction rod receives buoyancy to influence, then floats through buoyancy formula F and arranges (F floats and arranges for rho liquid gV), calculates induction rod submergence height, is greater than the density that the jar body loaded liquid because of induction rod's density again for induction rod can not rise by buoyancy, thereby induction rod submergence height can indirect expression jar internal liquid level height.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged view at A of FIG. 1;

FIG. 3 is an enlarged view at B of FIG. 1;

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Examples

As shown in figures 1-3, a liquid level detection protection device, including a jar body 1, the top intercommunication of jar body 1 has feed liquor pipe 2, and the bottom intercommunication of jar body 1 has drain pipe 3, install liquid level induction system 4 on jar body 1, all install automatically controlled valve 5 on feed liquor pipe 2 and the

drain pipe

3, 4 electric connection automatically controlled valves 5 of liquid level induction system.

The liquid level sensing device 4 comprises a vertical pipe 41, the bottom end of the vertical pipe 41 is communicated with the top end of the tank body 1, the vertical setting of the vertical pipe 41 is realized, an inner cavity of the vertical pipe 41 is provided with a tension sensor 42, the top end of the tension sensor 42 is fixedly connected with the top end of the inner cavity of the vertical pipe 41, the tension sensor 42 is electrically connected with a controller, the controller is respectively electrically connected with an electric control valve 5 on the liquid inlet pipe 2 and the liquid outlet pipe 3, a sensing rod 43 is arranged below the tension sensor 42, the top end of the sensing rod 43 is fixedly connected with the bottom end of the tension sensor 42, and the bottom end of the sensing rod 43 is inserted into the bottom. The density of the sensing rod 43 is greater than the density of the liquid loaded in the tank 1.

The liquid level sensing device 4 further comprises an anti-interference device. The anti-interference device comprises a plurality of sleeves 61, through holes 62 are uniformly formed in the pipe wall of each sleeve 61, the plurality of sleeves 61 are coaxially sleeved outside the induction rod 43 by taking the induction rod 43 as a center, the bottom ends of the sleeves 61 are respectively and fixedly connected with the top and the bottom of the inner cavity of the tank body 1, the inner diameter of each sleeve 61 is larger than the outer diameter of the induction rod 43, and the inner diameters of the plurality of sleeves 61 are different. The through holes 62 of adjacent sleeves 61 are offset in position. The sleeve 61 separates the induction rod 43 from the inner cavity of the tank body 1, so that liquid in the sleeve 61 is relatively calm, and the positions of the through holes 62 on the adjacent sleeve 61 are staggered, thereby avoiding the influence of the liquid flow in the inner cavity of the tank body 1 on the induction rod 43, and avoiding the impact of the liquid flow on the induction rod 43 to influence the measurement accuracy.

This technical scheme provides a liquid level detection protection device utilizes buoyancy indirect reaction liquid level, adopts the gravity of measuring induction rod 43 after influenced by buoyancy, then floats through buoyancy formula F and arranges (F floats and arranges for rho liquid gV), calculates induction rod 43 height of flooding, and the density of induction rod 43 because of being greater than the density that the jar body loaded liquid again for induction rod 43 can not rise by buoyancy, thereby induction rod 43 height of flooding can indirect expression jar internal liquid level. When the liquid level control device is used, the liquid level range is set, namely a set lowest value and a set highest value which can be measured by the tension sensor 42 are set, when the implementation value detected by the tension sensor 42 is smaller than the set lowest value, the liquid level in the tank body is too high, and the controller respectively controls the electric control valve 5 on the liquid inlet pipe 2 to be closed; when the implementation value that tension sensor 42 detected is greater than the minimum value of settlement, the internal liquid level height of jar is crossed lowly, and the automatically controlled valve 5 on the controller control drain pipe 3 respectively closes this moment, controls automatically controlled valve 5 on the feed liquor pipe 2 and opens. In the actual operation process, the set highest value is not the lowest value of the liquid level of the actual tank body 1, and the set highest value is generally controlled to be more than the capacity 1/3 of the tank body 1, so that the electric control valve 5 on the liquid outlet pipe 3 cannot be closed for a long time.

The anti-interference device further comprises a plurality of lifting support legs 7 and a leveling bubble 8, the lifting support legs 7 are installed at the bottom end of the tank body 1, and the leveling bubble 8 is fixed on the tank body 1. Liftable stabilizer blade 7 includes internal thread pipe 71, the top fixed connection jar body 1's of internal thread pipe 71 bottom, the bottom screw in of internal thread pipe 71 has with internal thread pipe 71 complex threaded rod 72. Through adjusting liftable stabilizer blade 7, refer to air level 8 simultaneously and can adjust jar body 1 to the level state of placing to guarantee that the response pole 43 is in the vertical state, make its gravity and buoyancy that receives in same straight line, thereby help improving measurement accuracy.

The anti-interference device further comprises a buffer cover 9, the pipe orifices of the liquid inlet pipe 2 and the liquid outlet pipe 3 which are communicated with the inner cavity of the tank body 1 are covered by the buffer cover 9, the buffer cover 9 is fixedly connected with the tank body 1 on the inner wall of the tank body 1, and a plurality of liquid penetrating holes are uniformly formed in the buffer cover 9. The buffer cover 9 can prevent the influence on the sensing rod 43 caused by the liquid flowing in and out, and the measuring precision of the liquid level sensing device 4 is prevented from being influenced.

It is noted that, in this document, relational terms such as first and second, and the like, if any, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. The utility model provides a liquid level detection protection device, includes a jar body (1), the top intercommunication of jar body (1) has feed liquor pipe (2), and the bottom intercommunication of jar body (1) has drain pipe (3), its characterized in that, install liquid level induction system (4) on jar body (1), all install automatically controlled valve (5) on feed liquor pipe (2) and drain pipe (3), liquid level induction system (4) electric connection automatically controlled valve (5).

2. The liquid level detection and protection device according to claim 1, wherein the liquid level sensing device (4) comprises a vertical pipe (41), the bottom end of the vertical pipe (41) is communicated with the top end of the tank body (1), the vertical pipe (41) is vertically arranged, a tension sensor (42) is arranged in the inner cavity of the vertical pipe (41), the top end of the tension sensor (42) is fixedly connected with the top end of the inner cavity of the vertical pipe (41), the tension sensor (42) is electrically connected with a controller, the controller is electrically connected with the electric control valve (5) on the liquid inlet pipe (2) and the liquid outlet pipe (3) respectively, an induction rod (43) is arranged below the tension sensor (42), the top end of the induction rod (43) is fixedly connected with the bottom end of the tension sensor (42), and the bottom end of the induction rod (43) is inserted into the bottom end of the inner cavity of the tank body (1).

3. A liquid level detection and protection device according to claim 2, wherein the sensing rod (43) has a density greater than the density of the liquid carried by the tank (1).

4. A liquid level detection protection device according to claim 2 or 3, characterized in that the liquid level sensing device (4) further comprises an anti-interference device.

5. The liquid level detection protection device according to claim 4, wherein the interference prevention device comprises a plurality of sleeves (61), through holes (62) are uniformly formed in the wall of each sleeve (61), the plurality of sleeves (61) are coaxially sleeved outside the induction rod (43) by taking the induction rod (43) as a center, the bottom ends of the sleeves (61) are respectively and fixedly connected with the top and the bottom of the inner cavity of the tank body (1), the inner diameters of the sleeves (61) are larger than the outer diameters of the induction rods (43), and the inner diameters of the plurality of sleeves (61) are different.

6. A liquid level detection protection device according to claim 5, characterized in that the through holes (62) on adjacent sleeves (61) are staggered.

7. The liquid level detection protection device according to claim 5, wherein the interference prevention device further comprises a plurality of lifting support legs (7) and a leveling bubble (8), the lifting support legs (7) are installed at the bottom end of the tank body (1), and the leveling bubble (8) is fixed on the tank body (1).

8. The liquid level detection protection device according to claim 7, wherein the lifting support leg (7) comprises an internal threaded tube (71), the top end of the internal threaded tube (71) is fixedly connected with the bottom end of the tank body (1), and a threaded rod (72) matched with the internal threaded tube (71) is screwed into the bottom end of the internal threaded tube (71).

9. The liquid level detection and protection device according to any one of claims 5-8, wherein the interference prevention device further comprises a buffer cover (9), the buffer cover (9) covers the pipe openings of the liquid inlet pipe (2) and the liquid outlet pipe (3) which are communicated with the inner cavity of the tank body (1), the buffer cover (9) is fixedly connected with the tank body (1) on the inner wall of the tank body (1), and a plurality of liquid penetrating holes are uniformly formed in the buffer cover (9).