Steam quality alarm mechanism and coating machine

Abstract

The utility model relates to the technical field of medicine production, and discloses a steam quality alarm mechanism and a coating machine, which comprise an electro connecting pressure gauge, a relay, a power supply module and an alarm device, the electric contact pressure gauge is arranged on the steam pipeline and is used for detecting the pressure in the pipeline; the relay comprises a coil and a normally open contact, and the coil is electrically connected with the electric contact pressure gauge; one end of the power supply module is electrically connected with one end of a normally open contact of the relay; one end of the alarm device is electrically connected with the other end of the normally open contact of the relay, and the other end of the alarm device is electrically connected with the other end of the power supply module. According to the utility model, an operator can respond according to an alarm, deal with abnormities in time and control risks in time, so that the coating quality of a solid preparation is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of drug production, in particular to a steam quality alarm mechanism and a coating machine. Background Art

[0002] In the production process of solid preparations, the coating machine is required to generate hot air through steam heating to coat and dry the tablets in the coating pot. This equipment has high requirements for steam quality. If the steam quality is poor and the temperature in the pot is unstable, the solid preparations may have problems such as adhesion and pockmarks during the coating process. In severe cases, the entire pot of tablets may be scrapped.

[0003] In the prior art, the temperature of the steam is detected by installing a temperature sensor on the steam pipeline and the temperature signal is transmitted to the terminal. When the operator is working in the clean area, he can only monitor the steam temperature by observing the temperature display of the terminal. When the steam quality is unstable, the temperature drops suddenly, and the water content in the steam is high, the steam quality has seriously declined. The staff on duty cannot find the change of steam quality in time. By the time the staff on duty finds the abnormal temperature of the material, the temperature and dryness of the steam have seriously dropped, resulting in the temperature drop of the coating machine, the adhesion and roughness of the drug particles in the coating machine, and the serious impact on the yield rate. Utility Model Content

[0004] In view of this, the utility model provides a steam quality alarm mechanism and a coating machine to solve the problem that when the steam is unstable, the temperature drops and the water content is high, the operator cannot discover it in time, and it is too late when the temperature abnormality is discovered, which seriously affects the yield rate.

[0005] In the first aspect, the utility model provides a steam quality alarm mechanism, including an electric contact pressure gauge, a relay, a power module and an alarm device; the electric contact pressure gauge is arranged on the steam pipeline for detecting the pressure inside the pipe; the relay includes a coil and a normally open contact, and the coil is electrically connected to the electric contact pressure gauge; one end of the power module is electrically connected to one end of the normally open contact; one end of the alarm device is electrically connected to the other end of the normally open contact, and the other end is electrically connected to the other end of the power module.

[0006] Beneficial effect: When the steam temperature drops, the pressure in the pipe drops accordingly. When there is more water in the pipe or water hammer occurs, the pointer of the pressure gauge will swing abnormally. When the above-mentioned water hammer occurs in the pipe, the pointer of the pressure gauge swings particularly violently, that is, when the steam quality drops, the pressure in the pipe will change accordingly. Therefore, by setting an electric contact pressure gauge to detect the pressure in the pipe, the quality of steam in the pipe can be detected. When the pressure in the pipe is unstable, the pointer of the electric contact pressure gauge is outside the set value, the electric contact pressure gauge sends a signal, and the signal is transmitted to the relay. The coil of the relay receives a strong electromagnetic field generated by electricity, and drives the normally open contact to move. The normally open contact is closed, and the circuit formed by the alarm device, the power module, and the normally open contact is connected. The power module supplies power to the alarm device, and the alarm device sends an alarm. The operator can respond according to the alarm, handle the abnormality in time, control the risk in time, and improve the coating quality of solid preparations; the electric contact pressure gauge can transmit signals to make the alarm device send an alarm, and can also conduct on-site detection of the pressure in the pipe, and at the same time facilitate operators inside and outside the workshop to monitor the steam quality.

[0007] In an optional implementation, a control cabinet is further included, and the power module, the relay and the alarm device are all arranged in the control cabinet.

[0008] Beneficial effects: The control cabinet has the advantages of energy saving, safety, reliability, maintainability, etc. It can store and protect the power module, relay and alarm device, effectively improve the reliability and service life of the power module, relay and alarm device, reduce maintenance costs, save a lot of wiring, reduce a lot of installation and wiring time, and make the installation of power modules, relays and alarm devices more flexible and convenient.

[0009] In an optional implementation, the control cabinet is placed in a clean area.

[0010] Beneficial effects: The control cabinet is placed in the clean area to prevent dust from contaminating and damaging structures such as the power module, relays and alarm devices. When operators work in the clean area, they can monitor the steam quality in the steam pipeline in a timely manner and control risks in a timely manner, thus realizing remote monitoring of steam quality and reducing labor costs.

[0011] In an optional embodiment, at least two relays are provided, at least two of the relays are arranged in the control cabinet, and the coils of at least two of the relays are connected in parallel and in series with the electric contact pressure gauge; the normally open contacts of at least two of the relays are connected in parallel and in series with the power supply module and the alarm device.

[0012] Beneficial effects: At least two relays are set in parallel to avoid the failure of a single relay to cause the circuit to fail. At least two relays work simultaneously. When one of the relays fails, the remaining relays automatically take over its work, ensuring the reliability and safety of the circuit and increasing the operational flexibility and versatility of the circuit.

[0013] In an optional implementation, the alarm device is an audible and visual alarm.

[0014] Beneficial effect: The sound and light alarm can simultaneously give a sound and light dual alarm, so as to be able to prompt the operator as quickly and reliably as possible, ensuring that the operator can receive the alarm in time to deal with the abnormality in time.

[0015] In an optional implementation, the alarm device is a buzzer alarm.

[0016] Beneficial effects: The buzzer alarm has the characteristics of clear sound and high loudness, can emit sound signals of various frequencies and durations, has a long service life and high reliability.

[0017] In an optional implementation, the power module is a battery or a solar cell.

[0018] Beneficial effect: The storage battery or solar cell can provide a stable and reliable power supply for the circuit loop where the alarm device is located.

[0019] In a second aspect, the utility model further provides a coating machine, comprising the above-mentioned steam quality alarm mechanism.

[0020] Beneficial effects: During the operation of the coating machine, when the steam in the steam pipeline is unstable, the steam quality alarm mechanism can promptly sound an alarm, and the operator can respond according to the alarm, handle the abnormality in time, control the risk in time, improve the coating quality of solid preparations, and reduce the product defective rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 This is a schematic diagram of the installation of a steam quality alarm mechanism according to an embodiment of the utility model;

[0023] Figure 2The present invention is a circuit diagram of a steam quality alarm mechanism according to an embodiment of the present invention.

[0024] Description of reference numerals:

[0025] 1. Electric contact pressure gauge; 2. Relay; 21. Coil; 22. Normally open contact; 3. Power module; 4. Alarm device; 5. Control cabinet. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0027] Combine the following Figure 1 and Figure 2 , describing an embodiment of the utility model.

[0028] According to an embodiment of the utility model, on the one hand, a steam quality alarm mechanism is provided, comprising an electric contact pressure gauge 1, a relay 2, a power module 3 and an alarm device 4; the electric contact pressure gauge 1 is arranged on the steam pipeline for detecting the pressure inside the pipe; the relay 2 comprises a coil 21 and a normally open contact 22, and the coil 21 is electrically connected to the electric contact pressure gauge 1; one end of the power module 3 is electrically connected to one end of the normally open contact 22; one end of the alarm device 4 is electrically connected to the other end of the normally open contact 22, and the other end is electrically connected to the other end of the power module 3.

[0029] When the steam temperature drops, the pressure in the pipe drops accordingly. When there is more water in the pipe and water hammer occurs, the pressure gauge pointer will swing abnormally. When the above-mentioned water hammer occurs in the pipe, the swing of the pressure gauge pointer is particularly violent, that is, when the steam quality drops, the pressure in the pipe will change accordingly. Therefore, the quality of steam in the pipe can be detected by setting an electric contact pressure gauge 1 to detect the pressure in the pipe. When the pressure in the pipe is unstable, the pointer of the electric contact pressure gauge 1 is outside the set value, the electric contact pressure gauge 1 sends a signal, the signal is transmitted to the relay 2, the coil 21 of the relay 2 obtains a strong electromagnetic field generated by electricity, and drives the normally open contact 22 to produce action, the normally open contact 22 is closed, the loop formed by the alarm device 4, the power module 3, and the normally open contact 22 is connected, the power module 3 supplies power to the alarm device 4, the alarm device 4 sounds an alarm, the operator can respond according to the alarm, deal with the abnormality in time, control the risk in time, and improve the coating quality of the solid preparation; the electric contact pressure gauge 1 can not only transmit signals to make the alarm device 4 sound an alarm, but also conduct on-site detection of the pressure in the pipe, and at the same time facilitate operators inside and outside the workshop to monitor the steam quality.

[0030] When the pointer of the electric contact pressure gauge 1 is within the set value, the electric contact pressure gauge 1 does not send out a signal, the coil 21 of the relay 2 is in normal state, and cannot drive the normally open contact 22 to operate. The normally open contact 22 is always in the normally open state. The power module 3 cannot supply power to the alarm device 4, and the alarm device 4 cannot operate and issue an alarm. When the pressure in the pipe is normal, the alarm device 4 does not operate and does not alarm.

[0031] In a specific embodiment, the coil 21 of the relay 2 is connected in series in the power supply circuit of the electric contact pressure gauge 1; the normally open contact 22 of the relay 2, the power module 3 and the alarm device 4 are connected in series to form a power supply circuit. When the device is not in operation, the pointer of the electric contact pressure gauge 1 is outside the set value. Since the normally open contact of the coating machine operation relay is connected in series in the power supply circuit where the power module 3 and the alarm device 4 are located, when the device is not in operation, the coating machine is in a power-off state, that is, the normally open contact of the coating machine operation relay is always in a normally open state, the power module 3 cannot supply power to the alarm device 4, and the alarm device 4 cannot operate to issue an alarm, thereby avoiding a false alarm of the alarm device 4 when the device is not in operation.

[0032] In one embodiment, a control cabinet 5 is further included, and the power module 3 , the relay 2 and the alarm device 4 are all arranged in the control cabinet 5 .

[0033] The control cabinet 5 has the advantages of energy saving, safety, reliability, maintainability, etc. It plays the role of storing and protecting the power module 3, relay 2 and alarm device 4, effectively improving the reliability and service life of the power module 3, relay 2 and alarm device 4, reducing maintenance costs, saving a lot of wiring, reducing a lot of installation and wiring time, and making the installation of the power module 3, relay 2 and alarm device 4 more flexible and convenient.

[0034] In one embodiment, the control cabinet 5 is placed in a clean area.

[0035] The control cabinet 5 is placed in the clean area to prevent dust from causing pollution and damage to structures such as the power module 3, the relay 2 and the alarm device 4; when the operator works in the clean area, the steam quality in the steam pipeline can be monitored in time, the risk can be controlled in time, the remote monitoring of the steam quality can be realized, and the labor cost can be reduced.

[0036] In one embodiment, at least two relays 2 are provided, at least two relays 2 are arranged in the control cabinet 5, and the coils 21 of at least two relays 2 are connected in parallel and in series with the electric contact pressure gauge 1; at least two normally open contacts 22 of the relays 2 are connected in parallel and in series with the power module 3 and the alarm device 4.

[0037] At least two relays 2 are arranged in parallel to prevent the circuit from failing due to a single relay 2. At least two relays 2 operate simultaneously. When one of the relays 2 fails, the remaining relays 2 automatically take over its work, thereby ensuring the reliability and safety of the circuit and increasing the operational flexibility and versatility of the circuit.

[0038] Specifically, four relays 2 are provided, and the four relays 2 are connected in parallel.

[0039] In one embodiment, the alarm device 4 is an audible and visual alarm.

[0040] The sound and light alarm can simultaneously give a dual sound and light alarm, so as to remind the operator as quickly and reliably as possible, ensuring that the operator can receive the alarm in time to deal with the abnormality in time.

[0041] In one embodiment, the alarm device 4 is a buzzer alarm.

[0042] The buzzer alarm has the characteristics of clear sound and high loudness. It can emit sound signals of various frequencies and durations. It has a long service life and high reliability.

[0043] As another implementation of this embodiment, the alarm device 4 may also be an electric bell.

[0044] In a specific implementation, the alarm device 4 is a common electric bell, a buzzer alarm, or a light, or a combination of any two, or a combination of the three.

[0045] In one embodiment, the power module 3 is a battery or a solar cell.

[0046] The storage battery or solar cell can provide a stable and reliable power supply for the circuit loop where the alarm device 4 is located.

[0047] According to an embodiment of the present invention, on the other hand, a coating machine is provided, comprising the above-mentioned steam quality alarm mechanism.

[0048] During the operation of the coating machine, when the steam in the steam pipeline is unstable, the steam quality alarm mechanism can promptly sound an alarm, and the operator can respond according to the alarm, handle the abnormality in time, control the risk in time, improve the coating quality of solid preparations, and reduce the product defective rate.

[0049] The working principle of the utility model is as follows: a low pressure value and a high pressure value are set on the electric contact pressure gauge 1, and the low pressure value and the high pressure value correspond to the lower limit contact and the upper limit contact respectively. When the steam pressure is lower than the low pressure value, the pointer of the electric contact pressure gauge 1 and the movable contact of the electric contact pressure gauge 1 are in contact with the lower limit contact at the moment, a signal is sent to the relay 2, and the coil 21 of the relay 2 obtains a strong electromagnetic field generated by electricity, and drives the normally open contact 22 to generate action, the normally open contact 22 is closed, and the circuit formed by the alarm device 4, the power module 3, and the normally open contact 22 is connected, the power module 3 supplies power to the alarm device 4, and the alarm device 4 sends an alarm.

[0050] When the steam pressure is between the low pressure value and the high pressure value, the pointer of the electric contact pressure gauge 1 is within the set value, the electric contact pressure gauge 1 does not send a signal, the coil 21 of the relay 2 is in a normal state, and cannot drive the normally open contact 22 to operate. The normally open contact 22 is always in a normally open state, the power module 3 cannot supply power to the alarm device 4, and the alarm device 4 cannot operate to issue an alarm.

[0051] When the steam pressure is higher than the high pressure value, the pointer of the electric contact pressure gauge 1 and the active contact of the electric contact pressure gauge 1 touch the upper limit contact at the moment, and a signal is sent to the relay 2. The coil 21 of the relay 2 obtains a strong electromagnetic field generated by electricity, and drives the normally open contact 22 to produce action. The normally open contact 22 closes, and the circuit formed by the alarm device 4, the power module 3, and the normally open contact 22 is connected. The power module 3 supplies power to the alarm device 4, and the alarm device 4 sounds an alarm.

[0052] Although the embodiments of the present invention are described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A steam quality alarm mechanism, characterized in that: include: An electric contact pressure gauge (1) is arranged on the steam pipeline and is used to detect the pressure inside the pipeline; A relay (2) comprising a coil (21) and a normally open contact (22), wherein the coil (21) is electrically connected to the electric contact pressure gauge (1); A power module (3), one end of which is electrically connected to one end of the normally open contact (22); an alarm device (4), one end of which is electrically connected to the other end of the normally open contact (22), and the other end of which is electrically connected to the other end of the power module (3); The coil (21) of the relay (2) is connected in series in the power supply circuit of the electric contact pressure gauge (1); the normally open contact (22) of the relay (2), the power module (3) and the alarm device (4) are connected in series to form another power supply circuit; the normally open contact of the equipment operation relay is connected in series in the power supply circuit where the power module (3) and the alarm device (4) are located.

2. The steam quality alarm mechanism according to claim 1, characterized in that: In an optional embodiment, it further comprises a control cabinet (5), wherein the power module (3), the relay (2) and the alarm device (4) are all arranged in the control cabinet (5).

3. The steam quality alarm mechanism according to claim 2, characterized in that: The control cabinet (5) is placed in a clean area.

4. The steam quality alarm mechanism according to claim 2, characterized in that: At least two relays (2) are provided, and at least two relays (2) are arranged in the control cabinet (5), and the coils (21) of at least two relays (2) are connected in parallel and connected in series with the electric contact pressure gauge (1); and the normally open contacts (22) of at least two relays (2) are connected in parallel and connected in series with the power module (3) and the alarm device (4).

5. The steam quality alarm mechanism according to claim 1, characterized in that: The alarm device (4) is an audible and visual alarm.

6. The steam quality alarm mechanism according to claim 1, characterized in that: The alarm device (4) is a buzzer alarm.

7. The steam quality alarm mechanism according to claim 1, characterized in that: The power module (3) is a storage battery or a solar cell.

8. A coating machine, characterized in that: The invention comprises the steam quality alarm mechanism according to any one of claims 1 to 7.

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