A filling metering device for propionyl chloride production

By combining a signal generator and an aluminum mirror, the problem of spring corrosion in propionyl chloride production was solved, enabling quantitative liquid feeding of propionyl chloride and convenient maintenance, thus improving the reliability of the equipment.

CN224548055UActive Publication Date: 2026-07-24ANHUI JIUWEI PHARMACEUTICAL MATERIALS TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ANHUI JIUWEI PHARMACEUTICAL MATERIALS TECHNOLOGY CO LTD
Filing Date
2025-06-16
Publication Date
2026-07-24

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Abstract

The utility model is suitable for propionyl chloride production technical field provides a kind of filling metering equipment for propionyl chloride production, including placement ring plate, and the bottom of placement ring plate is fixedly connected with support ring table around hole, and the top of support ring table is placed with glass metering tank, and the central position at the top of glass metering tank is provided with feed inlet, and feed inlet is connected with discharge pipe, and the top of glass metering tank is installed with lifting assembly, and signal generating assembly is detachably installed on lifting assembly, and signal receiving assembly is installed on the outer wall of glass metering tank, and lifting assembly controls signal generating assembly to lift to control the feed metering of glass metering tank by signal receiving assembly receiving signal;Signal generator is fixedly installed on connecting cylinder, and connecting cylinder is spirally installed on the side wall of threaded column, and aluminum mirror is installed on mounting cylinder, and mounting cylinder is spirally installed on ring cylinder, so that signal generator and aluminum mirror can be spirally detached, convenient to replace and repair.
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Description

Technical Field

[0001] This utility model belongs to the field of propionyl chloride production technology, and in particular relates to a filling and metering device for propionyl chloride production. Background Technology

[0002] Propionyl chloride is an organic compound, a colorless and transparent liquid with a pungent odor. It can be used as a propionylating agent and an initiator for propionic anhydride in organic synthesis, as a raw material for fragrances and pharmaceuticals, and as a raw material for pesticides and herbicides. During the production of propionyl chloride, the finished product needs to be packaged for convenient storage, transportation, and sales.

[0003] Chinese utility model patent CN217864888U discloses a chloropropionyl chloride filling and metering device, including a placement platform. A positioning groove is provided on the top of the placement platform, and a metering tank is placed within the positioning groove. A liquid storage chamber is provided within the metering tank, and an adjusting frame is nested and slidably connected to the metering tank. A positioning block is provided at the bottom of the adjusting frame, and a movable groove is provided within the positioning block. A moving block is provided within the movable groove, and a float is provided at the bottom of the moving block and below the positioning block. A contact head is provided at the top of the moving block. This utility model allows adjustment of the position height of the positioning block within the liquid storage chamber through the adjusting frame structure. When the liquid level reaches a fixed height, the float pushes the contact head to contact a contact sensor. The contact sensor is connected to the control system of the production equipment to automatically stop the liquid inflow, thus completing the control of liquid metering during filling.

[0004] However, the aforementioned utility model patents still have some shortcomings:

[0005] During use, the aforementioned utility model patent involves the adjusting frame moving the positioning block and float within the metering tank to adjust the volume of propionyl chloride stored in the tank. However, propionyl chloride is highly volatile and corrosive, making it easy for the vaporized propionyl chloride to enter the movable slot and corrode the spring. Over time, this can gradually reduce the spring's elasticity or even cause it to lose its elasticity, affecting the automatic reset of the moving block. Furthermore, when the spring's elasticity is significantly reduced or even lost, it needs to be replaced. The replacement process for springs located in the movable slot is quite cumbersome, increasing the burden on operators. Utility Model Content

[0006] This invention provides a filling and metering device for the production of propionyl chloride, which aims to solve the problems mentioned in the background art.

[0007] This invention is implemented as follows: a filling and metering device for the production of propionyl chloride includes a placement ring plate, a supporting ring platform fixedly connected to the bottom of the placement ring plate around holes, a glass metering tank placed on the top of the supporting ring platform, a feed inlet located at the center of the top of the glass metering tank, a discharge pipe connected to the feed inlet, a lifting assembly installed on the top of the glass metering tank, a signal generating assembly detachably installed on the lifting assembly, and a signal receiving assembly installed on the outer wall of the glass metering tank. The lifting assembly controls the lifting of the signal generating assembly so that the signal receiving assembly receives signals to control the feeding and metering of the glass metering tank.

[0008] Preferably, the lifting assembly includes a mounting box, in which a connecting rod is rotatably mounted. A gear is sleeved on the side wall of the connecting rod, and a rack meshes on the side wall of the gear. The signal generating assembly is mounted on the bottom of the rack. In this scheme, the connecting rod drives the gear to rotate, thereby controlling the rack to move in the vertical direction.

[0009] Preferably, the top and bottom of the mounting box are provided with channels corresponding to the rack, and the top of the glass metering tank is provided with a notch, and the rack moves up and down within the channels and the notch.

[0010] Preferably, the signal generating assembly includes a signal generator, a threaded post is fixedly connected to the bottom of the rack, a connecting cylinder is screwed onto the side wall of the threaded post, the signal generator is fixedly installed at the bottom of the connecting cylinder, and an annular cylinder is fixedly connected to the periphery of the signal generator and at the bottom of the connecting cylinder; in this embodiment, the connecting cylinder is screwed onto the threaded post, which facilitates the removal of the signal generator from the bottom of the rack.

[0011] Preferably, an mounting cylinder is screwed onto the inner wall of the annular cylinder, and an aluminum mirror is fixedly attached to the inner wall of the mounting cylinder at a 45° angle. The aluminum mirror is located directly below the signal generator. Several channel grooves are opened on the side wall of the mounting cylinder, and the channel grooves are arranged parallel to the aluminum mirror. In this scheme, the mounting cylinder is screwed onto the annular cylinder, which facilitates the removal of the aluminum mirror from the connecting cylinder.

[0012] Preferably, the signal receiving component includes a signal receiving board mounted on a mounting frame, with the signal receiving board facing the reflective surface of the aluminum mirror. A suction cup is fixed to the side wall of the mounting frame near the glass metering tank, and an indicator light and a control switch are respectively installed on the side wall of the mounting frame away from the glass metering tank. The signal receiving board is connected to the indicator light and the control switch via wiring. In this design, the indicator light is set to remind the operator whether the glass metering tank has finished filling, and the control switch is set to prevent the signal receiving board from being accidentally triggered.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] The signal generator emits a light signal, which is emitted by the aluminum mirror and then shines on the wall of the glass metering vessel. The rack drives the signal generator and the light signal to move vertically. When the light signal is received by the signal receiving board, it triggers liquid feeding until the surface of the propionyl chloride liquid submerges the reflection point of the aluminum mirror, causing the signal receiving board to lose the light signal and stop liquid feeding, thus achieving quantitative feeding of propionyl chloride liquid.

[0015] The signal generator is fixedly mounted on the connecting cylinder, which is screwed onto the side wall of the threaded column. The aluminum mirror is mounted on the mounting cylinder, which is screwed onto the ring cylinder, allowing both the signal generator and the aluminum mirror to be screwed off for easy replacement and maintenance. Attached Figure Description

[0016] Figure 1 This is a front sectional view of the present invention;

[0017] Figure 2 In this utility model Figure 1 Enlarged view of point A;

[0018] Figure 3 This is a top sectional view of the mounting box in this utility model;

[0019] Figure 4 In this utility model Figure 1 Enlarged view of point B;

[0020] Figure 5 In this utility model Figure 1 Enlarged view of point C;

[0021] In the picture:

[0022] 1. Placement ring plate; 2. Support legs; 3. Support ring platform; 4. Glass metering tank; 5. Inlet; 6. Outlet pipe; 7. Outlet; 8. Control valve;

[0023] 9. Lifting assembly; 91. Mounting box; 92. Rack; 93. Gear; 94. Connecting rod; 95. Control handle; 96. Channel opening; 97. Notch; 98. Threaded post;

[0024] 10. Signal generating assembly; 101. Connecting cylinder; 102. Ring cylinder; 103. Signal generator; 104. Mounting cylinder; 105. Aluminum mirror; 106. Channel groove;

[0025] 11. Signal receiving component; 111. Mounting frame; 112. Signal receiving board; 113. Suction cup; 114. Signal light; 115. Control switch. Detailed Implementation

[0026] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0027] The components of the present invention embodiments described and shown in the accompanying drawings can typically be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0028] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0029] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] Please see Figure 1-5 This utility model provides a technical solution: a filling and metering device for the production of propionyl chloride, including a placement ring plate 1, a support leg 2 fixedly connected to the bottom of the placement ring plate 1, a support ring platform 3 fixedly connected around the bottom of the placement ring plate 1 with holes, a glass metering tank 4 placed on the top of the support ring platform 3, an inlet 5 provided at the center of the top of the glass metering tank 4, an outlet pipe 6 connected to the inlet 5, the outlet pipe 6 being connected to the propionyl chloride production equipment, an outlet 7 provided at the bottom of the glass metering tank 4, and a control valve 8 installed on the outlet 7.

[0032] A lifting assembly 9 is installed on the top of the glass metering tank 4. A signal generating assembly 10 is detachably installed on the lifting assembly 9. A signal receiving assembly 11 is installed on the outer wall of the glass metering tank 4. The lifting assembly 9 controls the lifting of the signal generating assembly 10 so that the signal receiving assembly 11 can receive signals to control the feeding and metering of the glass metering tank 4.

[0033] Specifically, the lifting assembly 9 controls the signal generating assembly 10 to move vertically within the glass metering tank 4, emitting a signal during the movement; the signal receiving assembly 11 is installed on the outer wall of the glass metering tank 4 according to the amount of propionyl chloride required in the glass metering tank 4, and the outer wall of the glass metering tank 4 is provided with scale lines for operators to measure; in addition, the signal receiving board 112 in the signal receiving assembly 11 is connected to the propionyl chloride production equipment via wireless signal to control the discharge of propionyl chloride;

[0034] During the vertical movement of the signal generating component 10, the signal emitted by it is received by the signal receiving component 11. The propionyl chloride production equipment injects propionyl chloride into the glass metering tank 4 through the discharge pipe 6 and the inlet 5. When the liquid level of propionyl chloride reaches the height of the signal receiving component 11, the feeding stops, thus completing the feeding and metering of propionyl chloride.

[0035] Furthermore, the lifting assembly 9 includes a mounting box 91, in which a connecting rod 94 is rotatably mounted. One end of the connecting rod 94 is rotatably mounted on the inner wall of the mounting box 91, and the other end passes through the side wall of the mounting box 91 and is connected to the side wall of the control handle 95. A gear 93 is sleeved on the side wall of the connecting rod 94, and a rack 92 meshes on the side wall of the gear 93. The signal generating assembly 10 is mounted on the bottom of the rack 92.

[0036] Specifically, the operator rotates the control handle 95 to drive the connecting rod 94 and the gear 93 to rotate, so that the rack 92 drives the signal generating component 10 to move in the vertical direction.

[0037] Furthermore, the top and bottom of the mounting box 91 are provided with channel openings 96 corresponding to the rack 92, the top of the glass metering tank 4 is provided with a notch 97, and the bottom of the rack 92 extends into the glass metering tank 4 through the channel openings 96 and the notch 97, and the rack 92 moves up and down within the channel openings 96 and the notch 97.

[0038] Furthermore, the signal generating assembly 10 includes a signal generator 103, a threaded post 98 fixedly connected to the bottom of the rack 92, a connecting cylinder 101 screwed onto the side wall of the threaded post 98, the signal generator 103 fixedly installed at the bottom of the connecting cylinder 101, and an annular cylinder 102 fixedly connected to the periphery of the signal generator 103 and at the bottom of the connecting cylinder 101.

[0039] Specifically, the top of the connecting cylinder 101 is provided with a threaded hole, which is compatible with the threaded post 98 so that the connecting cylinder 101 is screwed onto the side wall of the threaded post 98, making it easy to screw the connecting cylinder 101 off the threaded post 98.

[0040] Furthermore, an installation cylinder 104 is screwed onto the inner wall of the ring cylinder 102, and an aluminum mirror 105 is fixed at a 45° angle to the inner wall of the installation cylinder 104. The aluminum mirror 105 is located directly below the signal generator 103. Several channel slots 106 are opened on the side wall of the installation cylinder 104, and the channel slots 106 and the aluminum mirror 105 are arranged in parallel.

[0041] Specifically, the inner wall of the ring cylinder 102 is provided with threads, so that the upper end of the mounting cylinder 104 can be screwed onto the inner wall of the ring cylinder 102; the signal transmitting end of the signal generator 103 extends from the upper end of the mounting cylinder 104 through the hole in the mounting cylinder 104 and enters the lower end of the mounting cylinder 104, facing the reflective surface of the aluminum mirror 105; the bottom of the mounting cylinder 104 is provided with a through hole, so that propionyl chloride liquid can enter the mounting cylinder 104 to submerge the aluminum mirror 105, thereby affecting the reflection and propagation of the emitted light signal.

[0042] The signal transmitter of the signal generator 103 emits a light signal that comes into contact with the surface of the aluminum mirror 105. Through the reflection of the mirror, the reflected light signal forms a 90° angle with the emitted light signal. The reflected light signal passes through the wall of the glass metering tank 4 (the thickness of the tank wall is calculated, and its refraction effect is negligible) and then shines on the signal receiving component 11, which is received by the signal receiving board 112.

[0043] Furthermore, when the propionyl chloride liquid level inside the glass metering tank 4 reaches the height of the corrosion-resistant aluminum mirror 105, the propionyl chloride liquid level fluctuates during the feeding process. The light signal emitted by the signal generator 103 will not enter the liquid level of the propionyl chloride vertically. This causes the signal receiving board 112 to lose the reflected light signal, thereby shutting off the propionyl chloride production equipment from feeding into the glass metering tank 4.

[0044] Furthermore, the signal receiving assembly 11 includes a signal receiving board 112, which is mounted on the mounting frame 111 and faces the reflective surface of the aluminum mirror 105. A suction cup 113 is fixed to the side wall of the mounting frame 111 near the glass measuring tank 4. An indicator light 114 and a control switch 115 are respectively mounted on the side wall of the mounting frame 111 away from the glass measuring tank 4. The signal receiving board 112 is connected to the indicator light 114 and the control switch 115 through wiring.

[0045] Specifically, the mounting frame 111 is attached to the outer wall of the glass metering tank 4 by suction cup 113. When the signal receiving board 112 receives the reflected light signal, the signal light 114 is turned off. At this time, the control switch 115 is turned on. At the same time, the propionyl chloride production equipment receives the signal and injects propionyl chloride into the glass metering tank 4.

[0046] When the signal receiving board 112 loses the reflected light signal, the signal light 114 is triggered to light up to remind the staff that the propionyl chloride injection has ended. At the same time, the control switch 115 enters the off state, and the propionyl chloride production equipment also stops injecting propionyl chloride into the glass metering tank 4, thus completing the quantitative injection of propionyl chloride.

[0047] In addition, after the control switch 115 is in the closed state, it needs to be manually triggered to enter the open state in order to turn on the signal receiving plate 112. This is to prevent the propionyl chloride liquid from falling below the aluminum mirror 105 during the process of filling the storage tank from the glass metering tank 4, so that the emitted light signal can stably illuminate the signal receiving plate 112 and prevent the problem of continued liquid filling from occurring.

[0048] The working principle and usage process of this utility model: After the utility model is installed, the operator fixes the installation frame 111 to the wall of the glass metering tank 4 by suction cup 113 according to the volume of liquid to be added to the glass metering tank 4. Then, the operator turns on the control switch 115 to make the signal receiving board 112 enter the working state. At this time, the signal light 114 is in the off state.

[0049] The operator rotates the control handle 95 to drive the connecting rod 94 and the gear 93 to rotate, which causes the rack 92 to drive the signal generating component 10 to move downward. During this process, the signal generator 103 emits a light signal, which is reflected by the aluminum mirror 105 and moves downward on the tank wall.

[0050] When the light signal is received by the signal receiving board 112, the propionyl chloride production equipment injects propionyl chloride into the discharge pipe 6 and the inlet 5. At this time, the operator stops turning the control handle 95. When the liquid surface of propionyl chloride submerges the light signal at the mirror reflection point of the aluminum mirror 105, the signal receiving board 112 loses the light signal due to the fluctuation of the propionyl chloride liquid surface. At this time, the propionyl chloride production equipment stops injecting propionyl chloride into the glass metering tank 4. The signal light 114 is triggered to light up to remind the operator that the propionyl chloride injection is over. At the same time, the control switch 115 enters the closed state, completing the quantitative injection of propionyl chloride.

[0051] The operator can place the storage tank directly below the discharge port 7 and open the control valve 8 to allow the metered propionyl chloride to enter the storage tank.

[0052] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A filling and metering device for the production of propionyl chloride, characterized in that: The device includes a placement ring plate (1), a support ring platform (3) fixedly connected to the bottom of the placement ring plate (1) around the hole, a glass metering tank (4) placed on the top of the support ring platform (3), a feed inlet (5) provided at the center of the top of the glass metering tank (4), a discharge pipe (6) connected to the feed inlet (5), a lifting assembly (9) installed on the top of the glass metering tank (4), a signal generating assembly (10) detachably installed on the lifting assembly (9), and a signal receiving assembly (11) installed on the outer wall of the glass metering tank (4). The lifting assembly (9) controls the lifting of the signal generating assembly (10) so that the signal receiving assembly (11) receives the signal to control the feeding and metering of the glass metering tank (4).

2. The filling and metering equipment for the production of propionyl chloride as described in claim 1, characterized in that: The lifting assembly (9) includes a mounting box (91), in which a connecting rod (94) is rotatably mounted. A gear (93) is sleeved on the side wall of the connecting rod (94), and a rack (92) meshes on the side wall of the gear (93). The signal generating assembly (10) is mounted on the bottom of the rack (92).

3. The filling and metering equipment for the production of propionyl chloride as described in claim 2, characterized in that: The top and bottom of the mounting box (91) are provided with channel openings (96) corresponding to the rack (92), and the top of the glass metering tank (4) is provided with a notch (97). The rack (92) moves up and down within the channel openings (96) and the notch (97).

4. A filling and metering device for the production of propionyl chloride as described in claim 2, characterized in that: The signal generating assembly (10) includes a signal generator (103), a threaded post (98) is fixedly connected to the bottom of the rack (92), a connecting cylinder (101) is screwed onto the side wall of the threaded post (98), the signal generator (103) is fixedly installed at the bottom of the connecting cylinder (101), and an annular cylinder (102) is fixedly connected to the periphery of the signal generator (103) and at the bottom of the connecting cylinder (101).

5. A filling and metering device for the production of propionyl chloride as described in claim 4, characterized in that: An mounting cylinder (104) is screwed onto the inner wall of the ring cylinder (102). An aluminum mirror (105) is fixed at a 45° angle onto the inner wall of the mounting cylinder (104). The aluminum mirror (105) is located directly below the signal generator (103). Several channel slots (106) are provided on the side wall of the mounting cylinder (104). The channel slots (106) and the aluminum mirror (105) are arranged in parallel.

6. A filling and metering device for the production of propionyl chloride as described in claim 5, characterized in that: The signal receiving component (11) includes a signal receiving board (112), which is mounted on a mounting frame (111) and faces the reflective surface of the aluminum mirror (105). A suction cup (113) is fixed to the side wall of the mounting frame (111) near the glass measuring tank (4). A signal light (114) and a control switch (115) are respectively mounted on the side wall of the mounting frame (111) away from the glass measuring tank (4). The signal receiving board (112) is connected to the signal light (114) and the control switch (115) through a circuit.

Citation Information

Patent Citations

  • CN217864888U