Dry type electric heating gasification device for liquefied petroleum gas

Abstract

The utility model relates to the technical field of liquefied petroleum gas supply equipment, in particular to a dry type electric heating gasification device for liquefied petroleum gas. The liquefied petroleum gas dry type electric heating gasification device comprises a gasification assembly, a mechanical liquid stopping device and a pressure adjusting assembly, the gasification assembly comprises a dry type electric heating gasifier, liquid liquefied petroleum gas becomes high-pressure gas after being processed by the dry type electric heating gasifier, and the high-pressure gas is conveyed into the mechanical liquid stopping device through a pipeline. The high-pressure gas becomes gas meeting the pressure requirement of a user side after being subjected to pressure regulation of the pressure regulating assembly. According to the dry type electric heating gasification device for the liquefied petroleum gas, the liquefied petroleum gas is heated by the dry type electric heating gasifier to be in a gaseous state, and then the liquefied petroleum gas is adjusted by the pressure adjusting assembly to be in a gaseous state meeting the requirements of users; the problem that a gasifier is damaged due to the fact that heat supply liquid in a traditional water bath type gasification assembly is prone to freezing under the low-temperature condition is solved.

Description

Technical Field

[0001] The present application relates to the technical field of liquefied petroleum gas supply equipment, and in particular to a liquefied petroleum gas dry electric heating gasification device. Background Art

[0002] The intelligent liquefied petroleum gas forced gasification supply system is a small distributed energy supply system, which transforms the original gas supply mode of "bottled supply, storage by each household, and self-keeping" into a pipeline gas supply mode of "small storage tank gas supply, special tank truck delivery, and enterprise remote online monitoring". With the rapid development of my country's economy, the demand for liquefied petroleum gas by industrial and commercial users has increased, and natural gasification gas supply can no longer meet user requirements.

[0003] In order to meet the users' increasing demand for liquefied petroleum gas, the industry has developed a large-flow forced gasification gas supply system. The large-flow forced gasification gas supply system on the market generally adopts a water bath gasifier. The traditional water bath gasifier meets the users' needs in terms of flow, but its use area is limited, especially in the northern region in winter. The heating liquid inside the water bath gasification component is easy to freeze and damage the gasifier under low temperature conditions, which seriously threatens the gas safety at the user end. Utility Model Content

[0004] The present application provides a liquefied petroleum gas dry electric heating gasification device to solve the technical problem that the use of traditional water bath gasifiers is limited in area, especially in the winter season in northern regions, the heating liquid inside the water bath gasification component is easy to freeze and damage the gasifier under low temperature conditions, seriously threatening the gas safety of the user end.

[0005] In order to solve the above technical problems, a technical solution adopted in the present application is: to provide a liquefied petroleum gas dry electric heating gasification device, the liquefied petroleum gas dry electric heating gasification device comprises:

[0006] A gasification component, including a dry electric heating gasifier, wherein the liquid liquefied petroleum gas is processed by the dry electric heating gasifier to become a high-pressure gas;

[0007] A mechanical liquid-stopping device, wherein the high-pressure gas is transported through a pipeline and enters the mechanical liquid-stopping device, and the mechanical liquid-stopping device is used to intercept the liquid liquefied petroleum gas in the high-pressure gas;

[0008] The pressure regulating assembly comprises a first pressure regulator and a second pressure regulator. After the high-pressure gas is pressure-regulated by the first pressure regulator and the second pressure regulator, it becomes a gas that meets the pressure requirements of the user end.

[0009] Optionally, the gasification assembly is provided with two groups connected in parallel.

[0010] Optionally, a first manual ball valve and a second manual ball valve are provided in the gasification assembly, wherein the first manual ball valve is provided at the inlet end of the dry electric thermal gasifier, and the second manual ball valve is provided at the outlet end of the dry electric thermal gasifier.

[0011] Optionally, an electromagnetic shut-off valve is further provided between the first manual ball valve and the dry electric thermal gasifier, and the electromagnetic shut-off valve is used to control the opening and closing of the pipeline.

[0012] Optionally, the mechanical liquid-stopping device is connected in series to the outlet end of the gasification component.

[0013] Optionally, the voltage regulating assembly is divided into a main voltage regulating assembly and a backup voltage regulating assembly.

[0014] Optionally, the main pressure regulating assembly and the backup pressure regulating assembly are connected in parallel and both are connected in series to the outlet end of the mechanical liquid stopping device.

[0015] Optionally, the first voltage regulator is located at the front end of the second voltage regulator and the first voltage regulator and the second voltage regulator are connected in series.

[0016] Optionally, the main pressure regulating assembly and the backup pressure regulating assembly are both provided with a third manual ball valve and a fourth manual ball valve, and the third manual ball valve and the fourth manual ball valve are used to manually open or close the pressure regulating assembly.

[0017] Optionally, the liquefied petroleum gas dry electric thermal gasification device further includes a pressure collection unit, and the pressure collection unit is used to collect data on the gas pressure at the outlet of the pressure regulating component.

[0018] The beneficial effect of the present application is that in the liquefied petroleum gas dry electric heating gasification device provided by the present application, the liquefied petroleum gas is heated by the dry electric heating gasifier to become a gaseous state, and then regulated by the pressure regulating component to become a gaseous liquefied petroleum gas that meets the needs of users, thereby solving the problem that the internal heating liquid of the traditional water bath gasification component is easily frozen and damaged by ice under low temperature conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Among them:

[0020] Figure 1 It is a flow chart of a liquefied petroleum gas dry electric heating gasification device provided in an embodiment of the present application.

[0021] Explanation of the reference numerals: 10, Y-type filter; 100, vaporization assembly; 110, dry electric vaporizer; 120, electromagnetic shut-off valve; 130, first manual ball valve; 140, second manual ball valve; 150, reserved interface; 200, mechanical liquid stop device; 300, pressure regulating assembly; 310, main pressure regulating assembly; 320, spare pressure regulating assembly; 330, first pressure regulator; 340, second pressure regulator; 350, third manual ball valve; 360, mechanical pressure gauge; 370, fourth manual ball valve; 400, pressure acquisition unit; 500, mass flow meter. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0023] It should be noted that if the embodiments of the present application involve directional indications (such as up, down, left, right, front, back...), such directional indications are only used to explain the relative position relationship, movement, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0024] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present application, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0025] like Figure 1 As shown, the present application provides a liquefied petroleum gas dry electric heating gasification device, which includes a gasification component 100, a mechanical liquid stopping device 200 and a pressure regulating component 300.

[0026] The gasification component 100 includes a dry electric thermal gasifier 110. The liquid liquefied petroleum gas is processed by the dry electric thermal gasifier 110 to become a high-pressure gas. The high-pressure gas is transported through a pipeline into a mechanical liquid-stopping device 200. The mechanical liquid-stopping device 200 is used to intercept the liquid liquefied petroleum gas in the high-pressure gas. The pressure regulating component 300 includes a first pressure regulator 330 and a second pressure regulator 340. After the high-pressure gas is regulated by the first pressure regulator 330 and the second pressure regulator 340, it becomes a gas that meets the pressure requirements of the user end.

[0027] The inlet of the liquefied petroleum gas dry electric heating gasification device adopts a DN20 PN25 flange, and the rear end of the DN20 PN25 flange is connected to a Y-type filter 10. The Y-type filter 10 can effectively filter impurities in the liquid liquefied petroleum gas to prevent impurities from entering the gasification component 100 and the pressure regulating component 300, affecting the user's gas safety.

[0028] The outlet end of the Y-type filter 10 is connected to a stainless steel seamless steel pipe and a tee, and the tee is respectively connected to two pipelines to the dry electric thermal vaporizer 110. An electromagnetic shut-off valve 120 is arranged at the front end of the dry electric thermal vaporizer 110, and a first manual ball valve 130 is also arranged at the front end of the electromagnetic shut-off valve 120. Liquid liquefied petroleum gas enters the two dry electric thermal vaporizers 110 respectively through two pipelines. Under the heating of the dry electric thermal vaporizer 110, the liquid liquefied petroleum gas is gasified, and the gasified liquefied petroleum gas forms two-way high-pressure gas. A second manual ball valve 140 is arranged at the outlet end of the dry electric thermal vaporizer 110.

[0029] The two high-pressure gases merge into the mechanical liquid-stopping device 200 , which includes a liquid storage chamber with a liquid storage function and a flow-stopping component that can float on the liquid liquefied petroleum gas.

[0030] The inlet end of the liquid storage chamber is provided with an inlet valve position connected to the liquid storage system, and the outlet end of the liquid storage chamber is provided with an outlet valve position connected to the user end. The flow stop component is movably arranged in the liquid storage chamber. When the liquid level of the liquid liquefied petroleum gas in the liquid storage chamber reaches or exceeds the preset liquid level, the flow stop component floats up and seals the inlet valve position and / or the outlet valve position, effectively preventing the liquid liquefied petroleum gas from entering the subsequent pressure regulating component 300.

[0031] The first manual ball valve 130 and the second manual ball valve 140 provided at the inlet and outlet ends of the dry electric thermal gasifier 110 can be closed in emergency conditions and during equipment inspection and maintenance to block the flow of liquefied petroleum gas.

[0032] A reserved interface 150 is provided on the liquid phase pipeline at the inlet of the dry electric thermal gasifier 110 , and the reserved interface 150 can be connected in parallel with another set of dry electric thermal gasifiers 110 to meet the demand for a larger gas consumption.

[0033] A pressure regulating assembly 300 is provided at the outlet end of the mechanical liquid stopping device 200. The pressure regulating assembly 300 is provided with two groups, one of which is a main pressure regulating assembly 310 and the other is a backup pressure regulating assembly 320. The two groups of pressure regulating assemblies 300 have the same structure. Both groups of pressure regulating assemblies 300 are provided with a first pressure regulator 330 and a second pressure regulator 340. The first pressure regulator 330 and the second pressure regulator 340 are connected in series. A third manual ball valve 350 is provided at the inlet end of the first pressure regulator 330, a mechanical pressure gauge 360 ​​is provided at the outlet end of the second pressure regulator 340, and a fourth manual ball valve 370 is provided at the rear end of the mechanical pressure gauge 360.

[0034] In the main pressure regulating assembly 310: the rated flow rate of the first pressure regulator 330 is 200kg / h, the inlet pressure range is 0.01MPa~1.77MPa, and the outlet pressure is set to 0.1MPa; the rated flow rate of the second pressure regulator 340 is 200kg / h, the inlet pressure is set to 0.01MPa~0.09MPa, and the outlet pressure is set to 4kPa.

[0035] In the standby pressure regulating assembly 320: the first pressure regulator 330 has a rated flow rate of 200 kg / h, an inlet pressure range of 0.01 MPa to 1.77 MPa, and an outlet pressure set to 0.09 MPa; the second pressure regulator 340 has a rated flow rate of 200 kg / h, an inlet pressure set to 0.01 MPa to 0.09 MPa, and an outlet pressure set to 3.6 kPa;

[0036] When the pressure regulating assembly 300 is in normal use, all valves are in the open state, the outlet pressure of the second pressure regulator 340 in the main pressure regulating assembly 310 is 4 kPa, and the outlet pressure of the second pressure regulator 340 in the standby pressure regulating assembly 320 is 3.6 kPa, so that the outlet pressure of the main pressure regulating assembly 310 is higher than the outlet pressure of the standby pressure regulating assembly 320, the standby pressure regulating assembly 320 is automatically closed, and the main pressure regulating assembly 310 is automatically operated.

[0037] When the main pressure regulating assembly 310 needs maintenance, the third manual ball valve 350 in the main pressure regulating assembly 310 is slowly closed. As the outlet pressure of the second pressure regulator 340 in the main pressure regulating assembly 310 drops to the outlet set pressure of the second pressure regulator 340 in the standby pressure regulating assembly 320, the standby pressure regulating assembly 320 automatically opens, and then slowly closes the fourth manual ball valve 370 in the main pressure regulating assembly 310. After the standby pressure regulating assembly 320 works normally, the outlet pressure of the second pressure regulator 340 can be adjusted to 4 kPa as needed to meet the pressure regulation parameter requirements.

[0038] When the main pressure regulating assembly 310 needs to be restored to use, firstly, the outlet pressure of the second pressure regulator 340 of the standby pressure regulating assembly 320 is reduced to 3.6 kPa, and then the third manual ball valve 350 in the main pressure regulating assembly 310 is slowly opened to inflate the main pressure regulating assembly 310. After the outlet pressure of the main pressure regulating assembly 310 is stabilized, the outlet pressure of the main pressure regulating assembly 310 is adjusted and checked to see whether it meets the user's use requirements. When the outlet pressure of the main pressure regulating assembly 310 meets the user's requirements, the fourth manual ball valve 370 of the main pressure regulating assembly 310 is slowly opened. As the outlet pressure of the main pressure regulating assembly 310 increases to the closing pressure of the standby pressure regulating assembly 320, the standby pressure regulating assembly 320 is automatically closed. At this time, the main pressure regulating assembly 310 starts to work normally, and the standby pressure regulating assembly 320 is in a closed state.

[0039] A pressure collection unit 400 is provided at the outlet of the pressure regulating component 300 for collecting and uploading data of the gas pressure at the outlet of the pressure regulating component 300 .

[0040] A mass flow meter 500 is provided at the rear end of the pressure acquisition unit 400. The mass flow meter 500 is used for monitoring the air supply flow of the device and for user settlement.

[0041] The intelligent monitoring solution for liquefied petroleum gas dry electric heating gasification device is:

[0042] When the liquefied petroleum gas dry electric thermal gasification device is in operation, the intelligent monitoring platform monitors the temperature of the dry electric thermal gasifier 110. The set temperature of the dry electric thermal gasifier 110 is 56°C to 68°C. The system automatically collects the temperature of the dry electric thermal gasifier 110. When the temperature of the dry electric thermal gasifier 110 is abnormal, such as the temperature is higher than 75°C, the intelligent monitoring platform automatically determines that the dry electric thermal gasifier 110 is abnormal, and the intelligent monitoring platform automatically closes the electromagnetic shut-off valve 120 to stop the liquefied petroleum gas dry electric thermal gasification device from working.

[0043] In a specific embodiment, when the temperature of the dry electric vaporizer 110 is too high and the electromagnetic shut-off valve 120 fails at the same time, the temperature of the dry electric vaporizer 110 abnormally rises to 120°C, the temperature fuse in the liquefied petroleum gas dry electric vaporizer is activated, and the dry electric vaporizer 110 stops being powered on. However, at this time, the liquid supply is not stopped, and the mechanical liquid stop device 200 at the rear end of the gasification component 100 starts to work. When the liquid level of the liquid liquefied petroleum gas in the liquid storage chamber reaches or exceeds the set liquid level, the flow stop component floats up to seal the inlet valve position and / or the outlet valve position, effectively preventing the liquid liquefied petroleum gas from entering the pressure regulating component 300.

[0044] When the liquefied petroleum gas dry electric thermal gasification device is in operation, the intelligent monitoring platform monitors the outlet pressure of the pressure regulating component 300. The outlet pressure standard of the pressure regulating component 300 is 4kPa. When the downstream end user is closed, the outlet pressure standard of the pressure regulating component 300 is 4.8kPa. If the outlet pressure of the pressure regulating component 300 is within the range of 3.6kPa to 4.8kPa, the pressure acquisition unit 400 will automatically upload the collected pressure data to the intelligent monitoring platform, and the intelligent monitoring platform determines that the gas supply pressure is normal. If the outlet pressure of the pressure regulating component 300 is lower than 3.6kPa or higher than 4.8kPa, the intelligent monitoring platform automatically analyzes the outlet flow of the pressure regulating component 300 and the working temperature of the gasification component 100, and makes a comprehensive judgment.

[0045] When the liquefied petroleum gas dry electric heating gasification device is in operation, the intelligent monitoring platform monitors the gas supply flow rate at the outlet of the pressure regulating component 300. The designed rated flow rate is 200kg / h. The mass flow meter 500 will automatically upload the gas supply flow rate to the intelligent monitoring platform. As the intelligent monitoring platform, it monitors the user's gas consumption, calculates the user's daily average gas consumption, monthly average gas consumption and gas peak period. When the gas consumption is abnormal (the gas consumption in a certain period is automatically calculated by the intelligent monitoring platform to be more than twice the gas peak consumption or greater than the rated flow rate of 200kg / h for a long time), the intelligent monitoring platform will automatically alarm and prompt the gas supply unit to verify the situation to prevent the user from overusing gas and causing the liquefied petroleum gas dry electric heating gasification device to be in an overload state for a long time, thereby damaging the gas supply equipment and protecting the user's gas safety. When the user's instantaneous gas flow rate is greater than 3 times the rated flow rate at the outlet of the pressure regulating component 300, the intelligent monitoring platform automatically closes the electromagnetic shut-off valve 120. At this time, the intelligent monitoring platform determines that there is a gas leak or a safety accident at the downstream user end to ensure user safety.

[0046] In addition, the flow rate monitoring of the mass flow meter 500 can be used as a basis for settling gas consumption of users.

[0047] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A liquefied petroleum gas dry electric heating gasification device, characterized in that: include: The gasification component (100) comprises a dry electric heating gasifier (110), wherein liquid liquefied petroleum gas is processed by the dry electric heating gasifier (110) to become gas; A mechanical liquid-stopping device (200), wherein the gas is transported through a pipeline and enters the mechanical liquid-stopping device (200), and the mechanical liquid-stopping device (200) is used to intercept the liquid liquefied petroleum gas in the gas; The pressure regulating assembly (300) comprises a first pressure regulator (330) and a second pressure regulator (340); after the gas is pressure-regulated by the first pressure regulator (330) and the second pressure regulator (340), the gas becomes a gas that meets the pressure requirements of a user end.

2. The liquefied petroleum gas dry electric heating gasification device according to claim 1, characterized in that: The gasification assembly (100) is provided with two groups connected in parallel.

3. The liquefied petroleum gas dry electric heating gasification device according to claim 2, characterized in that: The gasification component (100) is provided with a first manual ball valve (130) and a second manual ball valve (140); the first manual ball valve (130) is provided at the inlet end of the dry electric thermal gasifier (110), and the second manual ball valve (140) is provided at the outlet end of the dry electric thermal gasifier (110).

4. The liquefied petroleum gas dry electric heating gasification device according to claim 3, characterized in that: An electromagnetic shut-off valve (120) is also provided between the first manual ball valve (130) and the dry electric thermal gasifier (110), and the electromagnetic shut-off valve (120) is used to control the opening and closing of the pipeline.

5. The liquefied petroleum gas dry electric heating gasification device according to claim 1, characterized in that: The mechanical liquid stopping device (200) is connected in series to the outlet end of the gasification component (100).

6. The liquefied petroleum gas dry electric heating gasification device according to claim 1, characterized in that: The voltage regulating assembly (300) is divided into a main voltage regulating assembly (310) and a standby voltage regulating assembly (320).

7. The liquefied petroleum gas dry electric heating gasification device according to claim 6, characterized in that: The main pressure regulating assembly (310) and the standby pressure regulating assembly (320) are connected in parallel, and both the main pressure regulating assembly (310) and the standby pressure regulating assembly (320) are connected in series to the outlet end of the mechanical liquid stopping device (200).

8. The liquefied petroleum gas dry electric heating gasification device according to claim 1, characterized in that: The first voltage regulator (330) is located at the front end of the second voltage regulator (340), and the first voltage regulator (330) and the second voltage regulator (340) are connected in series.

9. The liquefied petroleum gas dry electric heating gasification device according to claim 7, characterized in that: The main pressure regulating assembly (310) and the standby pressure regulating assembly (320) are both provided with a third manual ball valve (350) and a fourth manual ball valve (370); the third manual ball valve (350) and the fourth manual ball valve (370) are used to manually open and close the pressure regulating assembly (300).

10. The liquefied petroleum gas dry electric heating gasification device according to claim 1, characterized in that: The liquefied petroleum gas dry electric heating gasification device further comprises a pressure collection unit (400), wherein the pressure collection unit (400) is used to collect data on the gas pressure at the outlet of the pressure regulating component (300).

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