CN217806482U - Special chemical feeding device for nitrogen seal protection - Google Patents
Special chemical feeding device for nitrogen seal protection Download PDFInfo
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- CN217806482U CN217806482U CN202221777924.9U CN202221777924U CN217806482U CN 217806482 U CN217806482 U CN 217806482U CN 202221777924 U CN202221777924 U CN 202221777924U CN 217806482 U CN217806482 U CN 217806482U
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- medicament
- nitrogen
- storage tank
- valve
- medicament storage
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Abstract
The utility model provides a special dosing device for nitrogen sealing protection, which comprises a medicament storage tank; the discharge end unit is connected to the bottom of the medicament storage tank to pump the medicament; the nitrogen inlet is connected with the top of the medicament storage tank through a nitrogen inlet pipe provided with a self-operated regulating valve and a manual valve V1; the nitrogen constant-pressure control system is arranged outside the medicament storage tank and connected to the medicament storage tank through a pipeline, and the manual valve V2 on the medicament inlet pipe in the nitrogen constant-pressure control system is mechanically interlocked with the manual valve V1 through a valve mechanical interlocking device. The utility model discloses a nitrogen is sealed in self-operated governing valve and a pair of manual valve of taking valve mechanical interlock, and self-operated governing valve is direct to be connected the pipe detection pressure through the self of valve, and reliable operation, low price, the manual valve of taking valve mechanical interlock can not take place the maloperation and produce the potential safety hazard.
Description
Technical Field
The utility model relates to a chemical industry medicament fills into a packet field, especially relates to nitrogen and seals protection and add the medicine field, specifically is a nitrogen seals special charge device who protects.
Background
Petrochemical industry etc. often have the injection package device of some chemical industry medicaments. The medicaments often have the characteristics of high toxicity, flammability, explosiveness and easy corrosion, and are also arranged in an explosion-proof area, so that the breathing port of the storage tank of the injection bag device cannot be communicated with the atmosphere, and nitrogen is required to be protected by nitrogen seal to prevent the medicaments from directly contacting with the air.
When introducing nitrogen protection, there are two kinds of operating modes, one is when advancing the liquid medicine to the medicinal cupping, along with the liquid level rises, and the nitrogen gas in jar body upper space receives the compression, and pressure rise needs the discharge nitrogen gas. In another working condition, the liquid level of the medicament is reduced along with pumping of the metering pump, so that the pressure in the nitrogen space is reduced to form negative pressure, and nitrogen is required to be supplemented to maintain the pressure in the tank body. The method for solving the problem is mostly to adopt a pressure control valve to carry out constant pressure control at present, the pressure control valve can detect the pressure of a medium in a pipeline and automatically open and close according to the change of the pressure, and therefore the actions of air supply, air cut-off and air exhaust are achieved. However, the valve is expensive, the opening and closing of the valve is realized by a pressure self-checking device, and in case of detecting a fault, the valve does not act in time, so that overpressure or pressure fluctuation is easily caused, and constant pressure cannot be maintained, thereby causing the potential operation problem of the dosing device.
Disclosure of Invention
In view of the above shortcomings in the prior art, an object of the present invention is to provide a special dosing device with nitrogen protection, which is used to solve the difficulties in the prior art.
In order to realize above-mentioned purpose and other relevant purposes, the utility model provides a nitrogen seals special charge device of protection, include:
a drug reservoir 1;
the discharge end unit is connected to the bottom of the medicament storage tank 1 and used for pumping medicament;
the nitrogen inlet 3 is connected with the top of the medicament storage tank 1 through a nitrogen inlet pipe 5 provided with a self-operated regulating valve 4 and a manual valve V1;
the nitrogen constant pressure control system is arranged outside the medicament storage tank 1 and is connected to the medicament storage tank 1 through a pipeline, and the manual valve V2 on the medicament inlet pipe 6 in the nitrogen constant pressure control system is mechanically interlocked with the manual valve V1 through a valve mechanical interlocking device 7.
According to the preferable scheme, the discharge end unit adopts a hydraulic double-diaphragm metering pump 8, and the hydraulic double-diaphragm metering pump 8 is connected in parallel.
According to a preferred solution, at least two groups of hydraulic double-diaphragm metering pumps 8 are used.
According to a preferred embodiment, the nitrogen constant pressure control system comprises:
a feed balance container 2, wherein the feed balance container 2 is arranged outside the medicament storage tank 1;
the device comprises a medicament inlet pipe 6, wherein one side of the medicament storage tank 1 is connected to a material inlet of the medicament storage tank 1 through the medicament inlet pipe 6;
the other side of the medicament storage tank 1 is connected with the upper end part of the medicament storage tank 1 through the balance pipe 9;
and a manual valve V2, wherein the manual valve V2 is arranged on one side of the medicine inlet pipe 6 close to the manual valve V1.
According to the preferred scheme, the medicament outlet of the medicament inlet pipe 6 is arranged at the lower middle position of the feeding balance container 2, and the medicament inlet of the medicament inlet pipe 6 is arranged at the top of the medicament storage tank 1.
According to a preferred solution, the nitrogen inlet of the equalization pipe 9 is arranged at the top of the feed equalization vessel 2 and the nitrogen outlet is arranged at the top of the agent reservoir 1.
According to the preferred scheme, a spiral pipe is adopted at one end of the medicine feeding pipe 6 and the balance pipe 9 close to the feeding balance container 2.
According to a preferred embodiment, the feed equalization vessel 2 is filled with a pharmaceutical agent.
According to the preferred scheme, a liquid level sensor 10 and a temperature sensor 11 are respectively arranged on two sides of the medicament storage tank 1.
According to a preferred embodiment, the liquid level sensor 10 is a magnetic liquid level sensor.
According to the preferred scheme, the top of the medicament storage tank 1 is provided with a vent 12, and the corresponding bottom is provided with a drain 13.
According to a preferred embodiment, a safety valve 14 is also mounted on the top of the medicament reservoir 1.
The utility model discloses a function that nitrogen sealed is realized to formula of relying on oneself governing valve and a pair of manual valve of taking valve mechanical interlocking device, and is specific including following several points:
(1) The self-operated regulating valve directly detects the pressure through the self-pressure guide pipe of the valve, has high working reliability, does not depend on instrument detection, directly senses the medium pressure to control the opening of the valve, and has low cost;
(2) The manual valve with the valve mechanical interlocking device only needs manual operation when replenishing medicament, and in addition, because the two valves are interlocked, potential safety hazard caused by misoperation can not occur.
The following description of the preferred embodiments for carrying out the present invention will be made in detail with reference to the accompanying drawings so that the features and advantages of the present invention can be easily understood.
Drawings
FIG. 1 is a schematic view of the present invention;
FIG. 2 is an enlarged view of the partial structure of the present invention;
FIG. 3 is a schematic view of a constant pressure control dosing apparatus using a pressure control valve in the prior art;
description of the reference symbols
1. A medicament reservoir; 2. a feed equalization vessel; 3. a nitrogen inlet; 4. a self-operated regulating valve; 5. a nitrogen inlet pipe; 6. a medicine inlet pipe; 7. a valve mechanical interlocking device; 8. a hydraulic dual diaphragm metering pump; 9. a balance tube; 10. a liquid level sensor; 11. a temperature sensor; 12. a vent port; 13. emptying the air; 14. a safety valve; a manual valve V1; and a manual valve V2.
Detailed Description
In order to make the technical solution of the present invention's purpose, technical solution and advantages clearer, the following description will be combined with the drawings of the specific embodiments of the present invention, to carry out clear and complete description on the technical solution of the embodiments of the present invention. Like reference symbols in the various drawings indicate like elements. It should be noted that the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive work based on the described embodiments of the present invention, belong to the protection scope of the present invention.
Possible embodiments within the scope of the invention may have fewer components, have other components not shown in the figures, different components, differently arranged components or differently connected components, etc. than the embodiments shown in the figures. Further, two or more of the components in the drawings may be implemented in a single component, or a single component shown in the drawings may be implemented as a plurality of separate components.
Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of "first," "second," and similar terms in the description and in the claims does not indicate any order, quantity, or importance, but rather is used to distinguish one element from another. Also, the use of the terms "a" or "an" and the like do not necessarily denote a limitation of quantity. The word "comprising" or "comprises", and the like, means that the element or item preceding the word comprises the element or item listed after the word and its equivalent, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.
The utility model provides a nitrogen seals special charge device of protection for in the nitrogen seals protection adds medicine technology, the utility model discloses do not limit to the type of medicament storage tank, nevertheless should have in the structure specially adapted that self-operated governing valve and valve mechanical interlocking device need nitrogen the medicament transport jar that seals.
Generally, the utility model provides a nitrogen seals special charge device of protection mainly includes medicament storage tank 1, discharge end unit, nitrogen gas entry 3 and nitrogen gas constant voltage control system. Among them, reference may be made to fig. 1, which shows the arrangement relationship of the agent tank 1, the discharge end unit, the nitrogen inlet 3, and the nitrogen constant pressure control system.
As shown in fig. 1, the bottom of the medicament storage tank 1 discharges the medicament in the tank through a plurality of groups of hydraulic double-diaphragm metering pumps 8 to form a medicament discharge unit, and the top of the medicament storage tank 1 realizes the purpose of constant pressure through a nitrogen inlet 3 and a nitrogen constant pressure control system, specifically, on one hand, the nitrogen inlet 3 is connected with the top of the medicament storage tank 1 through a nitrogen inlet pipe 5 provided with a self-operated regulating valve 4 and a manual valve V1; on the other hand, the nitrogen constant pressure control system is arranged outside the medicament storage tank 1 and is connected to the medicament storage tank 1 through a pipeline, the manual valve V2 on the medicament inlet pipe 6 in the nitrogen constant pressure control system is mechanically interlocked with the manual valve V1 through the valve mechanical interlocking device 7, when the manual valve V1 on the nitrogen inlet pipe 5 and the valve operation handle of the manual valve V2 on the medicament inlet pipe 6 are provided with the valve mechanical interlocking device 7, the manual valve V1 and the manual valve V2 are opened and closed at the same time, and after the operation through the valve mechanical interlocking device 7, the manual valve V1 is closed, and the manual valve V2 is opened, or vice versa.
What need be specifically explained is a nitrogen constant pressure control system, including loading the feeding balance container 2 full of medicament, in order to realize the balance, and does not change the structure of the medicament storage tank 1 itself, the feeding balance container 2 is set up in the outside of the medicament storage tank 1, the middle lower position of the feeding balance container 2 is fitted with a medicament inlet pipe 6, another end is connected to the top of the medicament storage tank 1, the top of the feeding balance container 2 has still offered a balance pipe 9, another end of the balance pipe 9 is connected to the top of the medicament storage tank 1 too; in the embodiment, in order to increase the stroke of nitrogen and medicament in a limited space and avoid direct discharge of materials, for this purpose, a spiral pipe is adopted at one end of the medicament inlet pipe 6 and the balance pipe 9 close to the feeding balance container 2 to achieve the purposes of buffering and stabilizing.
On this basis, it is preferable that, in order to further achieve the safety of the drug reservoir 1, a vent 12 and a safety valve 14 are installed on the top of the drug reservoir 1, and a drain 13 is installed on the corresponding bottom.
As shown in fig. 1, during normal operation, as described above, the manual valve V1 is opened, the manual valve V2 is closed, the liquid level of the chemical is reduced along with pumping of the metering pump, the pressure in the tank is reduced, when the self-operated regulating valve 4 on the nitrogen inlet pipe 5 detects pressure change through the self-operated pressure guiding pipe of the valve, the valve is opened, nitrogen enters the chemical storage tank 1, and when the pressure in the chemical storage tank 1 is increased to a set value, the pressure detected by the self-operated regulating valve is guided to be closed again, so as to ensure that the pressure of the nitrogen in the chemical storage tank 1 is constant.
When the liquid level sensor 10 in the medicament storage tank 1 transmits the medicament to reach a low-level alarm value, the valve mechanical interlocking device 7 is manually operated, the manual valve V1 is closed, and the manual valve V2 is opened. Nitrogen in the medicament storage tank 1 enters the feeding balance container 2 through the balance pipe 9 to be used as a power source, medicament gas is sent into the medicament storage tank 1, after the process is finished, the valve mechanical interlocking device 7 is operated manually, the manual valve V1 is opened, the manual valve V2 is closed, and the system enters a normal operation state again.
Compared with the original self-checking pressure control valve, the self-operated pressure regulating valve 4 and the mechanical interlocking device valve 7 are cheap, operate reliably and safely, do not need to be provided with a pneumatic diaphragm pump, and are applied to special medicament injection packaging in the petrochemical industry at present.
The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (7)
1. The utility model provides a special type charge device of nitrogen seal protection which characterized in that includes:
a medicament reservoir (1);
the discharge end unit is connected to the bottom of the medicament storage tank (1) and pumps medicament;
the nitrogen inlet (3) is connected with the top of the medicament storage tank (1) through a nitrogen inlet pipe (5) provided with a self-operated regulating valve (4) and a manual valve V1;
the nitrogen constant-pressure control system is arranged outside the medicament storage tank (1) and connected to the medicament storage tank (1) through a pipeline, and a manual valve V2 on a medicament inlet pipe (6) in the nitrogen constant-pressure control system is mechanically interlocked with the manual valve V1 through a valve mechanical interlocking device (7).
2. A special dosing device for nitrogen sealing protection as claimed in claim 1, wherein the discharge end unit employs a hydraulic double diaphragm metering pump (8), and a plurality of hydraulic double diaphragm metering pumps (8) are connected in parallel.
3. The nitrogen seal protected specialty dosing device of claim 2, wherein said nitrogen constant pressure control system comprises:
a feed equalization vessel (2), the feed equalization vessel (2) being disposed outside the medicament reservoir (1);
the device comprises a medicament inlet pipe (6), wherein one side of the medicament storage tank (1) is connected to a material inlet of the medicament storage tank (1) through the medicament inlet pipe (6);
the other side of the medicament storage tank (1) is connected with the upper end part of the medicament storage tank (1) through the balance pipe (9);
and a manual valve V2, wherein the manual valve V2 is arranged on one side of the medicine inlet pipe (6) close to the manual valve V1.
4. A nitrogen seal protected specialty dosing device according to claim 3, wherein the feed equalization vessel (2) is filled with a medicament.
5. A nitrogen-seal protection special dosing device as claimed in claim 4, characterized in that a liquid level sensor (10) and a temperature sensor (11) are respectively mounted on both sides of the medicament storage tank (1).
6. A nitrogen seal protection special dosing device as claimed in claim 5, characterized in that a vent (12) is installed at the top of the medicament storage tank (1), and a drain (13) is installed at the corresponding bottom.
7. A nitrogen seal protected specialty dosing device according to claim 6, wherein a safety valve (14) is also mounted on the top of the medicament reservoir (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221777924.9U CN217806482U (en) | 2022-07-11 | 2022-07-11 | Special chemical feeding device for nitrogen seal protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221777924.9U CN217806482U (en) | 2022-07-11 | 2022-07-11 | Special chemical feeding device for nitrogen seal protection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217806482U true CN217806482U (en) | 2022-11-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221777924.9U Active CN217806482U (en) | 2022-07-11 | 2022-07-11 | Special chemical feeding device for nitrogen seal protection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217806482U (en) |
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2022
- 2022-07-11 CN CN202221777924.9U patent/CN217806482U/en active Active
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