Quantitative injector for polyether polyol

Abstract

The utility model discloses a polyether polyol quantitative injector which comprises an injection pipe, a quantitative electromagnetic valve is installed at the rear end of the injection pipe, the rear end of the quantitative electromagnetic valve is communicated with a temporary storage material barrel, the rear end of the temporary storage material barrel is communicated with a first material control pump, and the rear end of the first material control pump is communicated with a storage main barrel. The upper end of the storage main barrel communicates with a communicating butt joint pipe, the side end of the communicating butt joint pipe communicates with a second material control pump, the lower end of the second material control pump communicates with a branch barrel, the rear end of the branch barrel communicates with a guiding control pipe, and the upper end of the guiding control pipe communicates with a leading-in pipe. The utility model relates to a quantitative material injector for polyether polyol, which realizes the purpose of quantitative material injection of polyether polyol through the arrangement of the structure.

Description

Technical Field

[0001] The utility model relates to the technical field of quantitative injector equipment, in particular to a quantitative injector for polyether polyol. Background Art

[0002] Polyether polyol (abbreviated as polyether) is an organic polymer, which is obtained by polyaddition reaction of initiator (compound containing active hydrogen group) with ethylene oxide (EO), propylene oxide (PO), butylene oxide (BO) etc. in the presence of catalyst. The largest polyether production is produced by using glycerol (glycerol) as initiator and epoxide (generally PO and EO are used together). By changing the feeding method of PO and EO (mixed or separate), feeding ratio, feeding order and other conditions, various general-purpose polyether polyols are produced.

[0003] According to Chinese patent publication number CN216935880U, which relates to the technical field of polyether polyol production equipment, a polyether polyol injection device is disclosed, including a feed pipe inserted into a feed port of a mixing device, a feed control module is arranged at one end of the feed pipe away from the feed port, the feed control module includes a raw material transition chamber whose bottom is connected to the feed pipe and a plurality of feed branch pipes arranged circumferentially at intervals on the inner ring wall of the raw material transition chamber, the end of the feed branch pipe away from the raw material transition chamber is higher than the end thereof close to the raw material transition chamber, a raw material barrel is detachably and sealedly connected at the end of each feed branch pipe away from the raw material transition chamber, an opening and closing mechanism is arranged in the raw material transition chamber, the opening and closing mechanism includes a matching block, a plurality of plugs telescopically arranged on the side wall of the matching block, each of which can seal a corresponding feed branch pipe when extended and can open the plug of the feed branch pipe when retracted, and the extension and retraction of each plug is respectively controlled by an independent driving component;

[0004] However, the current quantitative injection device for polyether polyols has the following problems: during the current quantitative injection, it is necessary to continuously replace the raw material barrel, which affects the quantitative injection. The multi-stage splitting steps can reduce interference and improve the stability of the equipment, so improvements are needed. Utility Model Content

[0005] The utility model aims to provide a quantitative injector for polyether polyols to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the utility model provides the following technical solution: a quantitative injector for polyether polyol, comprising an injection tube, a quantitative solenoid valve is installed at the rear end of the injection tube, a temporary storage barrel is connected to the rear end of the quantitative solenoid valve, a first material control pump is connected to the rear end of the temporary storage barrel, a main storage barrel is connected to the rear end of the first material control pump, and a connecting butt pipe is connected to the upper end of the main storage barrel;

[0007] The side end of the connecting butt tube is connected to a second material control pump, the lower end of the second material control pump is connected to a branch barrel, the rear end of the branch barrel is connected to a guide control tube, and the upper end of the guide control tube is connected to an introduction tube.

[0008] Specifically, the introduction pipe is connected to the external raw material barrel through a hose.

[0009] Specifically, the introduction pipe, the guide control pipe and the branch barrel are connected as a whole, and the second material control pump has a built-in pipeline to the bottom of the branch barrel.

[0010] Specifically, the second material control pump conducts the liquid at the bottom of the branch barrel to the storage main barrel for mixing and processing through the second material control pump through drainage.

[0011] Specifically, the connecting butt pipe is connected to the bottom of the inner cavity of the storage main barrel, and the connecting butt pipe guides the liquid into the storage main barrel.

[0012] Specifically, the bottom of the main storage barrel is connected to the temporary storage barrel through the first material control pump, and the temporary storage barrel is connected to the injection tube through the quantitative solenoid valve to perform liquid quantitative drainage processing.

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

[0014] 1. By installing an inlet pipe and connecting it with the guide control pipe, the liquid can be guided into the interior of the branch barrel. At the same time, a second material control pump is provided in the branch barrel for re-transmitting the liquid in the branch barrel, thereby performing step-by-step processing and reducing the interference of external raw material barrels on the operation of the equipment. At the same time, the branch barrel transfers the polyether polyol to the storage main barrel through the second material control pump, and the connecting pipe is connected to the second material control pump to help with centralized control.

[0015] Second, by installing the first material control pump, the first material control pump transfers the polyether polyol stored in the main barrel to the temporary storage barrel. At the same time, a one-way valve is provided at the central connection position. The polyether polyol can be transferred through the quantitative solenoid valve and the injection tube, thereby performing quantitative injection. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0017] Figure 2 It is a three-dimensional side view of the main body of the utility model;

[0018] Figure 3 It is a three-dimensional rear view of the main body of the utility model.

[0019] In the figure: 1-injection tube; 2-quantitative solenoid valve; 3-temporary storage barrel; 4-first material control pump; 5-storage main barrel; 6-connecting butt pipe; 7-introduction pipe; 8-guiding control pipe; 9-branch barrel; 10-second material control pump. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-3 The utility model provides a technical solution: a quantitative injection device for polyether polyol, comprising an injection tube 1, a quantitative solenoid valve 2 is installed at the rear end of the injection tube 1, a temporary storage barrel 3 is connected to the rear end of the quantitative solenoid valve 2, a first material control pump 4 is connected to the rear end of the temporary storage barrel 3, a main storage barrel 5 is connected to the rear end of the first material control pump 4, a connecting butt pipe 6 is connected to the upper end of the main storage barrel 5, and the first material control pump 4 is installed to conduct the polyether polyol in the main storage barrel 5 to the temporary storage barrel 3. At the same time, a one-way valve is provided at the central connection position, and the polyether polyol can be conducted through the quantitative solenoid valve 2 and the injection tube 1, thereby performing quantitative injection work;

[0022] The side end of the connecting butt pipe 6 is connected with a second material control pump 10, the lower end of the second material control pump 10 is connected with a branch barrel 9, the rear end of the branch barrel 9 is connected with a guide control pipe 8, and the upper end of the guide control pipe 8 is connected with an introduction pipe 7. By installing the introduction pipe 7, the introduction pipe 7 is connected with the guide control pipe 8, so that the liquid can be guided into the interior of the branch barrel 9. At the same time, the branch barrel 9 is provided with a second material control pump 10 for re-transmitting the liquid in the branch barrel 9, so as to perform step-by-step processing and reduce the interference of external raw material barrels on the operation of the equipment. At the same time, the branch barrel 9 conducts the polyether polyol to the storage main barrel 5 through the second material control pump 10, and the connecting butt pipe 6 is connected to the second material control pump 10 for docking and connecting to help centralized control.

[0023] The inlet pipe 7 is connected to the external raw material barrel through a hose.

[0024] The introduction pipe 7 , the guide control pipe 8 and the branch barrel 9 are integrally connected, and the second material control pump 10 has a built-in pipeline to the bottom of the branch barrel 9 .

[0025] The second material control pump 10 conducts the liquid at the bottom of the branch barrel 9 to the storage main barrel 5 for mixing through drainage.

[0026] The connecting pipe 6 is connected to the bottom of the inner cavity of the storage main barrel 5, and the connecting pipe 6 guides the liquid into the storage main barrel 5.

[0027] The bottom of the main storage barrel 5 is connected to the temporary storage barrel 3 through the first material control pump 4, and the temporary storage barrel 3 is connected to the injection tube 1 through the quantitative solenoid valve 2 to perform liquid quantitative drainage processing.

[0028] Working principle: when work is needed, the user builds the whole equipment, connects the raw material barrel with the introduction pipe 7 through the pipe body, and the polyether polyol reaches the inside of the guide control pipe 8 through the introduction pipe 7, and then guides it to the inside of the branch barrel 9 for temporary storage. Then the second material control pump 10 works to extract the polyether polyol in the branch barrel 9 and transfer it to the connecting butt pipe 6, and then guides it into the storage main barrel 5. The storage main barrel 5 is connected with the temporary storage barrel 3 through the first material control pump 4, and a one-way valve is provided at the connection position. Then the injection tube 1 and the quantitative solenoid valve 2 are controlled again to quantitatively conduct the polyether polyol and complete the work.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A quantitative injector for polyether polyol, characterized in that: The invention comprises an injection tube (1), a quantitative solenoid valve (2) is installed at the rear end of the injection tube (1), a temporary storage barrel (3) is connected to the rear end of the quantitative solenoid valve (2), a first material control pump (4) is connected to the rear end of the temporary storage barrel (3), a main storage barrel (5) is connected to the rear end of the first material control pump (4), and a connecting butt pipe (6) is connected to the upper end of the main storage barrel (5); The side end of the connecting butt pipe (6) is connected to a second material control pump (10), the lower end of the second material control pump (10) is connected to a branch barrel (9), the rear end of the branch barrel (9) is connected to a guide control pipe (8), and the upper end of the guide control pipe (8) is connected to an introduction pipe (7).

2. A quantitative injector for polyether polyol according to claim 1, characterized in that: The inlet pipe (7) is connected to the external raw material barrel through a hose.

3. A quantitative injector for polyether polyol according to claim 2, characterized in that: The introduction pipe (7), the guide control pipe (8) and the branch barrel (9) are integrally connected, and the second material control pump (10) has a built-in pipeline to the bottom of the branch barrel (9).

4. A quantitative injector for polyether polyol according to claim 3, characterized in that: The second material control pump (10) conducts the liquid at the bottom of the branch barrel (9) through the second material control pump (10) and the connecting butt pipe (6) to the storage main barrel (5) for mixing.

5. A quantitative injector for polyether polyol according to claim 4, characterized in that: The connecting butt pipe (6) is connected to the bottom of the inner cavity of the main storage barrel (5), and the connecting butt pipe (6) guides the liquid into the main storage barrel (5).

6. A quantitative injector for polyether polyol according to claim 5, characterized in that: The bottom of the main storage barrel (5) is connected to the temporary storage barrel (3) through a first material control pump (4), and the temporary storage barrel (3) is connected to the injection tube (1) through a quantitative solenoid valve (2) to perform quantitative liquid drainage processing.

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