Metering tank
By installing an axially movable metering component and detector in the metering tank, and utilizing the preset distance design between the float and the buoy, the problem of inaccurate metering of foamy solutions is solved, achieving accurate measurement of liquid level and reducing errors.
Patent Information
- Application Number
- CN202423091878.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-13
- Publication Date
- 2025-10-24
- Estimated Expiration
- 2034-12-13
AI Technical Summary
The conventional method for measuring foam solutions cannot achieve accurate measurement and is prone to errors.
Design a metering tank comprising a tank body, a detector, and an axially movable metering component. The metering component consists of a float, a counterweight, and a float ball. The float ball maintains a preset distance from the float to prevent foam from flowing through the gap between the float and the tank body. The detector measures the distance between the surface of the float and the detector to achieve accurate measurement of the liquid level.
The accurate measurement of the liquid level of the foam solution is achieved, the measurement error is reduced, and the measurement accuracy is improved.
Smart Images
Figure CN223470700U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of metering tank, specifically relates to a metering tank of foamed solution. BACKGROUND
[0002] In the field of petrochemical industry, the liquid addition amount is usually needed to be measured. For example, in the preparation of hydrogenation catalyst, a certain amount of liquid raw material needs to be added to the catalyst solid raw material or a certain amount of metal solution needs to be added to the catalyst carrier to realize the loading of effective components. However, due to the influence of the surface tension and other properties of the liquid raw material, foam is easily generated on the liquid during preparation, stirring and transportation, which affects the detection of liquid level and the reading of liquid level data during the measurement of liquid raw material, thereby causing the quality fluctuation of catalyst products. Therefore, it is particularly important to improve the accuracy of liquid measurement of hydrogenation catalyst for the production of catalyst products. The thickness of the foam is related to the properties of the liquid and the specifications of the metering tank, and other factors. At present, the measurement of the thickness of the foam is mainly confirmed by experienced technical personnel according to the actual working conditions. Such a method cannot realize accurate measurement and is prone to errors. SUMMARY
[0003] The utility model mainly solves one technical problem that the current manual measurement method for the solution containing foam cannot realize accurate measurement and is prone to errors.
[0004] In order to achieve the above purpose, the utility model provides a metering tank of foamed solution, which comprises a tank body, a detector arranged at the top of the tank body and a metering assembly arranged in the tank body, wherein,
[0005] The metering assembly can move along the axial direction of the tank body, and the metering assembly comprises a floating plate, a counterweight arranged on the floating plate, and a plurality of floating balls connected with the counterweight. The floating balls are arranged to maintain a predetermined distance from the floating plate to avoid the foam flowing to the upper surface of the floating plate through the gap between the floating plate and the tank body.
[0006] The detector is used to measure the distance between the surface of the floating plate and the detector.
[0007] In some embodiments, the counterweight and the floating ball are connected by a support rod, and the support rod comprises a first section extending radially and a second section extending axially and connected with the floating ball.
[0008] In some embodiments, the second section of the support rod is arranged as an extendable rod.
[0009] In some embodiments, a floating plate holder is further arranged at the connection between the tank body and the lower part of the tank.
[0010] In some embodiments, the bottom end of the tank body is provided with a liquid inlet, and a baffle plate is arranged between the floating disc holder and the liquid inlet to avoid the displacement of the floating disc in the axial direction by the foam-containing solution.
[0011] In some embodiments, the area of the baffle plate is 1.5-2 times the cross-sectional area of the liquid inlet.
[0012] In some embodiments, the bottom end of the tank body is provided with a liquid outlet, and the liquid outlet is arranged away from the liquid inlet.
[0013] In some embodiments, the top end of the tank body is provided with a discharge port, and the discharge port is arranged away from the detector.
[0014] In some embodiments, a plurality of floating balls are arranged at equal intervals around the floating disc in the circumferential direction.
[0015] In some embodiments, the counterweight is arranged at the center of the floating disc.
[0016] By the above technical solution, the detector and the axially movable metering assembly are arranged in the tank body of the metering tank, and the distance between the floating disc and the floating ball of the metering assembly is pre-designed to avoid the foam flowing through the gap between the floating disc and the tank body to the upper surface of the floating disc. Thus, the liquid level height detected by the detector is the liquid level height of the top of the foam layer of the foam-containing solution, and the accurate measurement of the liquid level height of the foam-containing solution is achieved. BRIEF DESCRIPTION OF DRAWINGS
[0017] Figure 1 is the overall structure schematic diagram of the metering tank for foam-containing solution disclosed by the present application;
[0018] Figure 2 is the top view of the metering assembly of the metering tank for foam-containing solution disclosed by the present application.
[0019] MARKED FOR EXPLANATION
[0020] 1, tank body; 2, baffle plate; 3, floating disc; 4, counterweight; 5, floating ball; 6, support rod; 7, detector; 8, liquid inlet; 9, liquid outlet; 10, discharge port; 11, floating disc holder. DETAILED DESCRIPTION
[0021] The specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present application, and are not used to limit the present application.
[0022] To solve the problem that the manual metering mode for the solution containing foam cannot realize accurate metering and is prone to errors in the prior art, the utility model provides a metering tank for solution containing foam, which comprises a tank body 1, a detector 7 arranged on the top of the tank body 1 and a metering assembly arranged in the tank body 1,
[0023] The metering assembly can move along the axial direction of the tank body 1, and the metering assembly comprises a floating plate 3, a counterweight 4 arranged on the floating plate 3, and a plurality of floating balls 5 connected with the counterweight 4; the floating balls 5 are arranged to keep a preset distance from the floating plate 3, so as to avoid the foam flowing to the upper surface of the floating plate 3 through the gap between the floating plate 3 and the tank body 1;
[0024] The detector 7 is used for measuring the distance between the surface of the floating plate 3 and the detector 7.
[0025] As shown in Figure 1 and 2 , the detector 7 can be arranged on the inner wall of the top of the tank body 1, and is preferably arranged at the central position of the top, so that the maximum distance can be kept in the vertical direction from the floating plate 3, and the solution containing foam is prevented from contacting the detector 7 during the rising process; and the detector 7 can be a radar detector.
[0026] The floating plate 3 is always attached to the top end of the foam layer of the solution containing foam, and is used for positioning the height of the solution containing foam. The surface area of the floating plate 3 can be approximately equal to the cross-sectional area of the tank body of the tank body 1, and a certain gap can be kept with the inner side wall of the tank body, so that the floating plate 3 is prevented from being clamped with the tank body 1 during the rising process of the solution containing foam, and the metering result is affected.
[0027] The counterweight 4 can be fixedly arranged on the upper surface or the lower surface of the floating plate 3, and the floating ball 5 can be contacted with the liquid surface of the solution containing foam through the foam layer of the solution containing foam by adjusting the weight of the counterweight 4. The counterweight 4 can select circular counterweights of different weight levels according to the thickness of the foam layer of the solution containing foam and the density of the solution containing foam, so as to ensure that the floating plate 3 is located above the foam layer, and the floating ball 5 floats above the liquid surface through the foam layer.
[0028] In the metering process, due to the different thicknesses of the foam layers of different kinds of foam-containing solutions, the thickness of the foam layer can be greater than the distance between the lowest point of the float ball 5 and the upper surface of the float plate 3, resulting in metering failure. Therefore, the key to the use of the metering assembly is to avoid the foam layer of the foam-containing solution from passing through the gap between the float plate 3 and the tank body 1 to the upper surface of the float plate 3 during the rising of the foam-containing solution. To this end, the distance between the float plate 3 and the float ball 5 can be adjusted in advance, that is, the distance between the float plate 3 and the float ball 5 is set to a preset distance to avoid the foam flowing to the upper surface of the float plate 3 through the gap between the float plate 3 and the tank body 1. Specifically, the thickness value of the foam-containing solution when the filling is completed can be obtained according to the previous work experience of the operator, and the preset distance between the float plate 3 and the float ball 5 is set to 1.2-1.5 times the thickness value, and the weight of the counterweight 4 is adjusted accordingly.
[0029] By the above technical solution, the detector 7 and the axially movable metering assembly are arranged in the tank body 1 of the metering tank, and the distance between the float plate 3 and the float ball 5 of the metering assembly is pre-designed to avoid the foam flowing to the upper surface of the float plate 3 through the gap between the float plate 3 and the tank body 1, so that the liquid level height detected by the detector 7 is the liquid level height of the top of the foam layer of the foam-containing solution, and the accurate measurement of the liquid level height of the foam-containing solution is realized.
[0030] In some embodiments, the counterweight 4 and the float ball 5 are connected by the support rod 6, and the support rod 6 includes a first section extending radially and a second section extending axially and connected with the float ball 5.
[0031] As shown in Figure 1 and 2 , the support rod 6 is used to connect the counterweight 4 and the float ball 5 on one hand, and to limit the relative position of the float ball 5 and the float plate 3 on the other hand. Specifically, the first section of the support rod 6 can be arranged on the upper surface or the lower surface of the float plate 3 and fixedly connected with the float plate 3, for limiting the float ball 5 in the radial direction, and the first section can extend radially to the edge of the float plate 3; the second section of the support rod 6 can extend axially and be connected with the float ball 5, and the length of the second section is the preset distance between the float plate 3 and the float ball 5. The first section and the second section of the support rod 6 can be integrally arranged or detachably arranged. The number of the support rods 6 is equal to the number of the float balls 5.
[0032] In some embodiments, the second section of the support rod 6 is arranged as an extendable rod. As shown in Figure 1 , arranging the second section of the support rod 6 as an extendable rod can facilitate the adjustment of the distance between the float plate 3 and the float ball 5, and compared with preparing a plurality of support rods 6 with different lengths, the cost is effectively reduced. The extendable range of the second section of the support rod 6 is set to be less than or equal to the height of the tank body 1. The adjustment distances of the second sections of the plurality of support rods 6 should be consistent to ensure that the float plate 3 stably floats on the liquid surface in a horizontal state.
[0033] In some embodiments, a floating tray frame 11 is further included. The floating tray frame 11 is arranged at the connection between the tank body and the lower closing portion of the tank body 1.
[0034] like Figure 1 As shown, the float frame 11 can be an annular structure with a width no less than the cross-sectional width of the float ball 5. The through-area in the center of the annular structure allows the foam solution to pass through. The float frame 11 can be positioned at the junction of the tank body and the lower end of the tank 1, i.e., at the lowest point of the tank 1 where its diameter remains constant in the vertical direction, to prevent the float 3 from becoming stuck with the tank 1 when the liquid level drops to this lower position.
[0035] In some embodiments, a liquid inlet 8 is provided at the bottom end of the tank body 1 , and a baffle 2 is provided between the float plate frame 11 and the liquid inlet 8 to prevent the foam solution from pushing the float plate 3 to displace in the axial direction.
[0036] like Figure 1 As shown, the liquid inlet 8 is arranged at the bottom end of the tank body 1, and the baffle 2 can be a horizontally placed circular disc or square plate, which is arranged between the floating disc frame 11 and the liquid inlet 8, and is preferably arranged above the liquid inlet 8 to avoid the solution impacting the floating disc 3 during the liquid inlet process, causing the floating disc 3 and the tank body 1 to be clamped, and to keep the solution level relatively stable during the liquid inlet process, thereby reducing the error caused thereby.
[0037] In some embodiments, the area of the baffle 2 is set to 1.5-2 times the cross-sectional area of the liquid inlet 8 .
[0038] The area of the baffle 2 is set to be no less than the cross-sectional area of the liquid inlet 8 and no greater than the cross-sectional area of the tank body 1 at this height, to ensure that the solution does not directly impact the floating plate 3 when entering the tank body 1 and that the baffle 2 does not come into contact with or collide with the tank body 1. The area of the baffle 2 is preferably set to 1.5-2 times the cross-sectional area of the liquid inlet 8.
[0039] In some embodiments, a liquid outlet 9 is provided at the bottom of the tank body 1, and the liquid outlet 9 is arranged away from the liquid inlet 8. Figure 1 As shown, the liquid outlet 9 is preferably arranged at the center of the bottom of the tank body 1.
[0040] In some embodiments, the top of the tank body 1 is provided with an emptying port 10, and the emptying port 10 is arranged away from the detector 7. Figure 1 As shown, the drain port 10 is used to adjust the pressure in the tank body 1 to avoid overpressure and overvacuum in the tank body 1 during the liquid filling process, thereby ensuring the safety of the metering tank when in use.
[0041] In some embodiments, a plurality of float balls 5 are arranged at equal intervals around the floating plate 3. Figure 1 As shown, the float balls 5 are preferably provided in three or more forms, and the shape of the float balls 5 can be a cylinder or a sphere.
[0042] The working principle of the metering tank containing the foamed solution is as follows: before the metering tank works, the height of the supporting rod 6 and the weight of the counterweight 4 are adjusted according to the thickness of the foam layer and the density of the solution, so as to ensure that the float plate 3 is located above the foam layer, and the supporting rod 6 and the float ball 5 float above the liquid surface through the foam layer. When the metering tank works, the liquid inlet 8 is arranged at the lower part of the tank body 1 and the baffle plate 2 is arranged, so as to effectively block the solution from impacting the float plate 3. When the solution reaches the float plate frame 11, the float ball 5 lifts the float plate 3 by means of the liquid buoyancy. The detector 7 emits a detection signal to the upper surface of the float plate 3 and returns the signal, so as to monitor the liquid level of the solution in real time. When the liquid level reaches the upper limit of the liquid level detection or the set liquid level, the liquid inlet is stopped. When the solution is discharged through the liquid outlet 8, the float plate 3 descends with the liquid surface. When the liquid level reaches the lower limit of the liquid level detection or the set liquid level, the liquid outlet is stopped.
[0043] The preferred embodiments of the utility model are described in detail above in combination with the drawings, but the utility model is not limited to this. Within the technical concept range of the utility model, the technical scheme of the utility model can be subjected to various simple modifications, including that various specific technical features are combined in any suitable mode. In order to avoid unnecessary repetition, the utility model will not be described again in another way for various possible combination modes. But these simple modifications and combinations should also be regarded as the disclosed contents of the utility model and all belong to the protection range of the utility model.
Claims
1. A metering canister characterized by, The metering assembly is capable of moving along the axial direction of the tank body (1), and comprises a float plate (3), a counterweight (4) arranged on the float plate (3), and a plurality of floating balls (5) connected with the counterweight (4), the floating balls (5) being arranged to maintain a preset distance from the float plate (3) to avoid foam flowing through the gap between the float plate (3) and the tank body (1) to the upper surface of the float plate (3). The detector (7) is used for measuring the distance between the surface of the float plate (3) and the detector (7). The counterweight (4) and the floating ball (5) are connected through a support rod (6), and the support rod (6) comprises a first section extending radially and a second section extending axially and connected with the floating ball (5).
2. The gage tank of claim 1, wherein, The second section of the support rod (6) is arranged as an extendable rod.
3. The gage tank of claim 2, wherein, Further comprising a float plate frame (11) arranged at the connection between the tank body (1) and the lower part of the tank body.
4. The gage tank of claim 1, wherein, The bottom end of the tank body (1) is provided with a liquid inlet (8), and a baffle plate (2) is arranged between the float plate frame (11) and the liquid inlet (8) to avoid the displacement of the float plate (3) in the axial direction caused by the foam-containing solution.
5. The gage tank of claim 4, wherein, The area of the baffle plate (2) is 1.5-2 times the cross-sectional area of the liquid inlet (8).
6. The gage tank of claim 5, wherein, The bottom end of the tank body (1) is provided with a liquid outlet (9), and the liquid outlet (9) is arranged away from the liquid inlet (8).
7. The gage tank of claim 5 wherein, The top end of the tank body (1) is provided with a vent (10), and the vent (10) is arranged away from the detector (7).
8. The gage tank of claim 1, wherein, A plurality of floating balls (5) are arranged equidistantly around the float plate (3).
9. The gage tank of claim 1, wherein, The counterweight (4) is arranged at the center of the float plate (3).
10. The gage tank of claim 1, wherein,