CN217367800U

CN217367800U - Compact air-cooled type air-blowing heat regeneration adsorption dryer

Info

Publication number: CN217367800U
Application number: CN202120966541.5U
Authority: CN
Inventors: 黄琴琴; 金明敏; 洪川; 宋勇
Original assignee: Hangzhou Shanli Purify Equipment Corp
Current assignee: Hangzhou Shanli Purify Equipment Corp
Priority date: 2021-05-07
Filing date: 2021-05-07
Publication date: 2022-09-06
Anticipated expiration: 2031-05-07

Abstract

The utility model provides a compact air-cooled drum wind heat regeneration adsorption dryer belongs to air drying technical field. It has solved the problem that the desiccator appears shutting down after current electric heater breaks down. This compact air-cooled drum wind heat regeneration adsorption dryer, including drying tower one, drying tower two, the cross valve that admits air, cross valve and the control valve of giving vent to anger five, be connected with the intake pipe on the cross valve that admits air, be connected with the outlet duct on the cross valve that gives vent to anger, the dryer is still including connecting gradually and forming closed loop electric heater, control valve one, the cooler, air-blower and control valve two, electric heater has at least two, all electric heater connect in parallel and set up, every electric heater's air inlet department all is provided with control valve four. The structure can fully heat a large amount of dry gas when the drier stops after the electric heater breaks down.

Description

Compact air-cooled type air-blowing heat regeneration adsorption dryer

Technical Field

The utility model belongs to the technical field of air drying, especially a compact air-cooled blast heat regeneration adsorption dryer.

Background

The principle of the adsorption dryer is that saturated compressed air is filtered by using the difference between the moisture and the molecular volume of air, a special adsorbent for gas purification is adopted to filter saturated water vapor in the compressed air, the adsorbent can easily adsorb water molecules in adsorbent particles, and then the adsorbent is reduced by using a regeneration method.

The adsorption dryer achieves drying effect through pressure change (pressure swing adsorption principle), because the capacity of air for containing water vapor is in inverse proportion to pressure, a part of air after being dried is called regeneration air, and the regeneration air is decompressed and expanded to atmospheric pressure, the expanded air becomes drier through the pressure change, then the expanded air flows through a drying tower which is not communicated with an air flow and needs regeneration, namely, the drying tower absorbs enough water vapor, the dried regeneration air sucks out moisture in the drying agent and takes the drying agent out of the dryer to achieve the purpose of dehumidification, the two towers work circularly, a heat source is not needed, and dry compressed air is continuously provided for a user air system.

At present, a chinese patent network discloses a compact air-cooled blowing heat regeneration adsorption dryer [ grant publication No.: CN206566718U, including the first jar of body, the second jar of body, admit air cross valve, give vent to anger cross valve and connecting line and control system, the air inlet of the first jar of body and second jar of body is connected with the cross valve of admitting air respectively, the gas outlet of the first jar of body and second jar of body is connected with the cross valve of giving vent to anger respectively, set up palingenetic drier in the first jar of body and the second jar of body respectively, the cross valve of giving vent to anger connects the main outlet duct, admit air cross valve connection main inlet pipe, be equipped with the regeneration passageway between cross valve of admitting air and the cross valve of giving vent to anger, the regeneration passageway includes air blower regeneration passageway and little hot regeneration passageway, be equipped with the eleventh control valve on the air blowing regeneration passageway, air blower and cooler, be equipped with sixth control valve, heater on the regeneration passageway, be equipped with the fifth control valve on the air blowing regeneration passageway, be equipped with the air inlet muffler on the air blowing regeneration passageway.

In the process of regenerating the adsorbent, the electric heater needs to heat the drying gas, and as only one electric heater is arranged in the dryer, once the electric heater is damaged, the dryer cannot work, and the dryer needs to be stopped for maintenance immediately, so that the normal use of the dryer is influenced; in addition, when the air inflow of the air inlet silencer is large, namely the air inflow into the motor heater is large, a single electric heater cannot fully heat a large amount of gas, so that the regeneration efficiency of the adsorbent is influenced, the regeneration energy consumption is high, and the operation cost of the dryer is increased.

Disclosure of Invention

The utility model aims at having the above-mentioned problem to current technique, provided a compact air-cooled drum wind heat regeneration adsorption dryer, the utility model aims to solve the technical problem that: how to solve the problem that the drier stops after the electric heater breaks down.

The purpose of the utility model can be realized by the following technical proposal:

a compact air-cooled type blowing heat regeneration adsorption dryer comprises a first drying tower, a second drying tower, a four-way air inlet valve, a four-way air outlet valve and a fifth control valve, wherein air inlets of the first drying tower and the second drying tower are respectively connected with the four-way air inlet valve, air outlets of the first drying tower and the second drying tower are respectively connected with the four-way air outlet valve, an air inlet pipe is connected onto the four-way air inlet valve, an air outlet pipe is connected onto the four-way air outlet valve, two ends of the fifth control valve are respectively connected with an air outlet of the first drying tower and an air outlet of the second drying tower, air inlets of the first drying tower and the second drying tower are respectively connected with a sixth control valve, the dryer further comprises a first electric heater, a first control valve, a cooler, a blower and a second control valve which are sequentially connected to form a closed loop, the four-way air outlet valve is connected to a position between the first electric heater and the first control valve, and the third control valve are sequentially connected onto the four-way air inlet valve, the control valve III is connected between the air blower and the control valve II, and the electric heater control device is characterized in that the number of the electric heaters is at least two, all the electric heaters are arranged in parallel, and the air inlet of each electric heater is provided with the control valve IV.

The working principle of the dryer is the same as that disclosed in the prior art, the electric heater needs to heat the dry gas in the process of regenerating the adsorbent in the first drying tower or the second drying tower in the dryer, the structure adopts more than two electric heaters which are arranged in parallel, under the normal condition, the control valve IV on one electric heater is opened, the control valves IV on the other electric heaters are closed, so that one electric heater heats the dry gas, when the electric heater breaks down, the control valve IV on the electric heater is closed, the control valve IV on the other electric heater is opened, and the dryer can work normally. In addition, in order to improve the regeneration efficiency, when the blower conveys a large amount of dry gas to the electric heaters, the control valves on more than two electric heaters are opened or the control valves on all the electric heaters are opened, and the large amount of dry gas is dispersed into a plurality of branches and enters the corresponding electric heaters respectively, so that the large amount of dry gas is fully heated, the regeneration efficiency of the adsorbent is improved, and the operation cost of the dryer is reduced.

In the above-mentioned compact air-cooled type air-blowing heat regeneration adsorption dryer, the number of the electric heaters is three or more. Through the setting of this structure, when heating a large amount of dry gas, electric heater opens simultaneously more than three, further guarantees the heating effect to a large amount of dry gas.

In the above-mentioned compact air-cooled type blowing heat regeneration adsorption dryer, each electric heater is provided with a temperature detector. Through the setting of this structure, the temperature of temperature detector setting on electric heater can monitor electric heater during operation, when electric heater's high temperature is unusual, can carry out the outage in real time to electric heater and handle.

In the above compact air-cooled air-blowing heat regeneration adsorption dryer, the dryer further comprises a first air inlet filter, and the first air inlet filter is connected between the cooler and the blower. Through the setting of this structure, the air-blower during operation, in external air enters into the desiccator through filter one that admits air, and filter one that admits air can filter the impurity in the drying gas, avoids impurity absorption in the valve of desiccator, improves the life of valve.

In the above-mentioned compact air-cooled type air-blowing heat regeneration adsorption dryer, the dryer further comprises an air inlet filter II, and the air inlet filter II is connected to the air inlet pipe. Through the setting of this structure, compressed gas enters into the admission pipe in, and the filter that admits air filters two pairs of these gases, gets rid of the impurity in the gas, avoids impurity absorption in the valve of desiccator, improves the life of valve.

In the above-mentioned compact air-cooled type blast heat regeneration adsorption dryer, a dew-point instrument is connected to an air outlet of the air outlet pipe. The humidity of the discharged dry gas is detected by the dew point instrument, and when the detected humidity of the dry gas is too high, the adsorption period can be prolonged, the humidity of the dry gas is further reduced, and the energy consumption in the process of regenerating the adsorbent is reduced.

Compared with the prior art, the utility model discloses a compact air-cooled drum wind heat regeneration adsorption dryer has following advantage:

1. in the process of regenerating the adsorbent, an electric heater needs to heat the drying gas, more than two electric heaters are arranged in parallel, under the normal condition, a control valve IV on one electric heater is opened, control valves IV on the other electric heaters are closed, so that one electric heater heats the drying gas, when the electric heater fails, the control valve IV on the electric heater is closed, and the control valve IV on the remaining electric heater is opened, so that the dryer can work normally;

2. when the air blower conveys a large amount of dry gas to the electric heaters, the control valves on more than two electric heaters are opened or the control valves on all the electric heaters are opened, a large amount of dry gas is dispersed into a plurality of branches and enters the corresponding electric heaters respectively, so that the large amount of dry gas is fully heated, the regeneration efficiency of the adsorbent is improved, and the operation cost of the dryer is reduced.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

In the figure, 1, a first drying tower; 2. a second drying tower; 3. an air inlet four-way valve; 4. an air outlet four-way valve; 5. a fifth control valve; 6. an air inlet pipe; 7. an air outlet pipe; 8. an electric heater; 9. a first control valve; 10. A cooler; 11. a blower; 12. a second control valve; 13. an exhaust valve; 14. a third control valve; 15. A control valve IV; 16. a temperature detector; 17. a first air inlet filter; 18. a second air inlet filter; 19. a dew point instrument; 20. and a control valve six.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in figure 1, the compact air-cooled type blowing-heating regenerative adsorption dryer comprises a first drying tower 1, a second drying tower 2, an air inlet four-way valve 3, an air outlet four-way valve 4 and a control valve five 5, wherein air inlets of the first drying tower 1 and the second drying tower 2 are respectively connected with the air inlet four-way valve 3, air outlets of the first drying tower 1 and the second drying tower 2 are respectively connected with the air outlet four-way valve 4, an air inlet pipe 6 is connected onto the air inlet four-way valve 3, an air outlet pipe 7 is connected onto the air outlet four-way valve 4, two ends of the control valve five 5 are respectively connected with an air outlet of the first drying tower 1 and an air outlet of the second drying tower 2, the air inlets of the first drying tower 1 and the second drying tower 2 are respectively connected with a control valve six 20, the dryer further comprises an electric heater 8, a first control valve 9, a cooler 10, a blower 11 and a second control valve 12 which are sequentially connected to form a closed loop, the air outlet four-way valve 4 is connected at a position between the electric heater 8 and the first control valve 9, the air inlet four-way valve 3 is sequentially connected with an exhaust valve 13 and a control valve III 14, the control valve III 14 is connected between the air blower 11 and the control valve II 12, the number of the electric heaters 8 is more than three, each electric heater 8 is provided with a temperature detector 16, all the electric heaters 8 are connected in parallel, and the air inlet of each electric heater 8 is provided with a control valve IV 15. The working principle of the dryer is the same as that disclosed in the prior art, in the process of regenerating the adsorbent, the electric heater 8 needs to heat the drying gas in the first drying tower 1 or the second drying tower 2 of the dryer, more than two electric heaters 8 are arranged in parallel, under the normal condition, the control valve IV 15 on one electric heater 8 is opened, the control valves IV 15 on the other electric heaters 8 are all closed, so that one electric heater 8 heats the drying gas, when the electric heater 8 breaks down, the control valve IV 15 on the electric heater 8 is closed, the control valve IV 15 on the other electric heater 8 is opened, and the dryer can normally work. In addition, in order to improve the regeneration efficiency, when the blower conveys a large amount of dry gas to the electric heaters 8, the control valves four 15 on more than two electric heaters 8 are opened or the control valves four 15 on all the electric heaters 8 are opened at the moment, and a large amount of dry gas is dispersed into a plurality of branches and enters the corresponding electric heaters 8 respectively, so that the large amount of dry gas is fully heated, the regeneration efficiency of the adsorbent is improved, and the operation cost of the dryer is reduced.

As shown in fig. 1, the dryer further includes a first intake air filter 17, the first intake air filter 17 being connected between the cooler 10 and the blower 11; the dryer also comprises a second air inlet filter 18, wherein the second air inlet filter 18 is connected to the air inlet pipe 6; a dew point instrument 19 is connected at the air outlet of the air outlet pipe 7.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. The utility model provides a compact air-cooled type drum wind heat regeneration adsorption dryer, includes drying tower (1), drying tower two (2), admits air cross valve (3), four way valve (4) and control valve five (5) of giving vent to anger, the air inlet of drying tower one (1) and drying tower two (2) is connected with admit air cross valve (3) respectively, the gas outlet of drying tower one (1) and drying tower two (2) is connected with four way valve (4) of giving vent to anger respectively, be connected with intake pipe (6) on cross valve (3) of admitting air, be connected with outlet duct (7) on cross valve (4) of giving vent to anger, the both ends of control valve five (5) are connected with the gas outlet of drying tower one (1) and the gas outlet of drying tower two (2) respectively, the air inlet of drying tower one (1) and drying tower two (2) all is connected with control valve six (20), and this dryer still includes that consecutive connection forms closed loop electric heater (8), The air conditioner is characterized in that the electric heaters (8) are at least two, all the electric heaters (8) are arranged in parallel, and a control valve four (15) is arranged at an air inlet of each electric heater (8).

2. A compact air-cooled forced air thermal regenerative adsorption dryer as claimed in claim 1, wherein there are more than three electric heaters (8).

3. A compact air-cooled forced air thermal regenerative adsorption dryer as claimed in claim 2 wherein each electric heater (8) is provided with a temperature detector (16).

4. A compact air-cooled forced air heat regenerative adsorption dryer as claimed in claim 1 further comprising a first inlet filter (17), said first inlet filter (17) being connected at a location between the cooler (10) and the blower (11).

5. A compact air-cooled forced air heat regenerative adsorption dryer as claimed in claim 1 further comprising a second inlet filter (18), said second inlet filter (18) being connected to the inlet duct (6).

6. A compact air-cooled blast-heating regenerative adsorption dryer as claimed in claim 1 wherein a dew point meter (19) is connected to the outlet of said outlet duct (7).