Liquid filling environment-friendly process device

Abstract

The utility model relates to an environment-friendly liquid filling process device, and belongs to the field of liquid product filling. The device comprises an absorption tank, an ejector, a circulating pump, a negative pressure pipeline, a crane pipe negative pressure system, a tank car tank body and a newly-added negative pressure system, the ejector is installed at the top of the absorption tank, a liquid phase of the ejector is connected with an outlet of the circulating pump, an inlet of the circulating pump is connected with the bottom of the absorption tank, and a negative pressure opening of the ejector is connected with the negative pressure pipeline. The loading arm negative pressure system is connected with the negative pressure pipeline, a tank car manhole of the tank car tank body is connected with the loading arm negative pressure system, one end of the newly-added negative pressure system is connected with the tank car tank body, and the other end of the newly-added negative pressure system is connected with the negative pressure pipeline. According to the utility model, the whole structural design is reasonable, the operation is simplified, gas is prevented from entering and escaping in a way of firstly intervening and then exiting, the gas is effectively prevented from entering the atmosphere, and the positive effect on personnel safety is also achieved.

Description

Technical Field

[0001] The utility model relates to a process device, in particular to an environmentally friendly liquid filling process device, which belongs to the field of liquid product filling and prevents gaseous phase gas from entering the atmosphere during the entire filling process. Background Art

[0002] Most liquid products are filled through a crane pipe, which has a conical negative pressure adsorption device at the front end. Its main function is to prevent gaseous gases from entering the atmosphere and polluting the environment during the filling process and to prevent filling personnel from inhaling toxic and harmful gases through negative pressure adsorption. This device has the following disadvantages:

[0003] (1) Before filling: The tank truck for transport is filled from the filling hole on the top of the tank. Before filling, the filling hole needs to be opened manually. When the negative pressure system is opened, the residual gas in the tank will enter the atmosphere, and people will also come into contact with the gas and inhale it;

[0004] (2) During filling: The negative pressure device of the filling crane is conical, and the manhole of the tank truck is circular but has a bulge on the edge. The tanks of each manufacturer are different. The negative pressure adsorption capacity is fixed and the sealing of the tank truck filling hole determines the adsorption effect. If the bulge is too high, it may lead to poor sealing and poor adsorption effect, and the gas will enter the atmosphere and cause pollution.

[0005] (3) After filling: When filling is completed, the filling crane tube must be removed from the filling hole. In the process of removing the crane tube and covering the filling hole, there will be gas phase gas entering the atmosphere without a negative pressure adsorption device. Utility Model Content

[0006] The purpose of the present invention is to overcome the above-mentioned deficiencies in the prior art and to provide a liquid filling environmental protection process device which has a simple and reasonable structural design, is safe and reliable, and can prevent personnel from inhaling toxic and harmful gases and prevent gases from entering the atmosphere and affecting the environment.

[0007] The technical solution adopted by the utility model to solve the above problems is: the liquid filling environmental protection process device includes an absorption tank, an ejector, a circulation pump, a negative pressure pipeline, a crane pipe negative pressure system and a tank truck tank body, the ejector is installed on the top of the absorption tank, the liquid phase of the ejector is connected to the outlet of the circulation pump, the inlet of the circulation pump is connected to the bottom of the absorption tank, the negative pressure port of the ejector is connected to the negative pressure pipeline, the crane pipe negative pressure system is connected to the negative pressure pipeline, the tank truck manhole of the tank truck tank body is connected to the crane pipe negative pressure system, and it is characterized in that: it also includes a newly added negative pressure system, one end of the newly added negative pressure system is connected to the tank truck tank body, and the other end of the newly added negative pressure system is connected to the negative pressure pipeline.

[0008] Preferably, the utility model further comprises a quick-connect ball valve, and a quick-connect ball valve is provided on the top of the tank body of the tank truck.

[0009] Preferably, the crane pipe negative pressure system of the present invention includes a connected crane pipe and a negative pressure system, and the crane pipe is connected to the tank truck manhole of the tank truck tank body through the cone at its lower part.

[0010] Preferably, the diameter of the manhole of the tank truck of the present invention is 250-300 mm.

[0011] Compared with the existing technology, the utility model has the following advantages and effects: the overall structural design is reasonable, the operation is simplified, and a new negative pressure system is set up to prevent gas from entering and escaping by first intervening and then exiting, effectively preventing gas from entering the atmosphere, and also playing a positive role in personnel safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall system structure of an embodiment of the present utility model.

[0013] In the figure: absorption tank 1, ejector 2, circulation pump 3, negative pressure pipeline 4, crane pipe negative pressure system 5, tank truck tank body 6, tank truck manhole 61, newly added negative pressure system 7, quick-connect ball valve 8, corrugated hose 9, crane pipe 51, negative pressure system 52. DETAILED DESCRIPTION

[0014] The present invention will be further described in detail below with reference to the accompanying drawings and through examples. The following examples are provided to explain the present invention, but the present invention is not limited to the following examples.

[0015] Example

[0016] See also Figure 1 The liquid filling environmental protection process device of this embodiment includes an absorption tank 1, an ejector 2, a circulation pump 3, a negative pressure pipeline 4, a crane negative pressure system 5, a tank truck tank body 6 and a newly added negative pressure system 7. The ejector 2 is installed on the top of the absorption tank 1, the liquid phase of the ejector 2 is connected to the outlet of the circulation pump 3, the inlet of the circulation pump 3 is connected to the bottom of the absorption tank 1, and the negative pressure port of the ejector 2 is connected to the negative pressure pipeline 4 or a hose; its function is to provide negative pressure to adsorb the absorbed gas.

[0017] In this embodiment, one end of the newly added negative pressure system 7 is connected to the tank body 6 of the tank truck, and the other end of the newly added negative pressure system 7 is connected to the negative pressure pipeline 4.

[0018] In this embodiment, the top of the tank body 6 of the tank truck has an original gas phase valve (changed to a quick-connect ball valve 8), which is connected to the negative pressure port valve of the ejector 2 before filling to provide an additional negative pressure system; its function is to continue to operate during the entire filling process, first intervene and then exit to prevent gas from leaking from the filling hole.

[0019] The crane pipe negative pressure system 5 in this embodiment includes a connected crane pipe 51 and a negative pressure system 52. The crane pipe 51 is connected to the tank truck manhole 61 of the tank truck body 6 through the cone shape at its lower part; the diameter of the tank truck manhole 61 is 250-300 mm.

[0020] In this embodiment, the crane negative pressure system 5 and the newly added negative pressure system 7 are both provided with a corrugated hose 9 .

[0021] This embodiment utilizes the modification and addition of the original negative pressure device, installs a quick-connect ball valve 8 at the tank body 6 of the tank truck, and adds process pipelines and corrugated hose block valves.

[0022] The operation process of this embodiment is as follows:

[0023] 1) After the tank truck is in place, first connect the newly added negative pressure pipeline valve, and open the valve to start the circulation pump 3.

[0024] 2) Slowly open the tank truck manhole 61 and insert the crane pipe for filling operations.

[0025] 3) After filling is completed, the crane pipe is withdrawn and the tank truck manhole 61 of the tank truck body 6 is closed. Finally, the valve of the newly added negative pressure system 7 is closed and disconnected to complete the filling.

[0026] Function: Before opening the tank truck manhole 61, a small amount of negative pressure is formed in the tank truck tank body 6 to prevent the escape of toxic gas when opening the tank truck manhole 61. At the same time, it continues to work during the filling process to prevent gas escape due to loose sealing between the tank truck manhole 61 and the crane pipe. After filling is completed, it prevents the escape of toxic gas when the crane pipe is removed.

[0027] The liquid filling environmental protection process device in this embodiment relies on the same negative pressure system. By adding pipeline valves, the gas is prevented from entering and escaping during the entire filling process by first intervening and then exiting. The use of this negative pressure system effectively prevents the gas from entering the atmosphere and also plays a positive role in personnel safety.

[0028] Through the above description, those skilled in the art can already implement it.

[0029] In addition, it should be noted that the shapes and names of the parts and components of the specific embodiments described in this specification may be different, and the above content described in this specification is merely an example of the structure of the utility model. Any equivalent changes or simple changes made based on the structure, features and principles described in the concept of the utility model patent are included in the scope of protection of the utility model patent. Technicians in the technical field of the utility model can make various modifications or supplements to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the structure of the utility model or exceed the scope defined by the claims, they should fall within the scope of protection of the utility model.

Claims

1. A liquid filling environmental protection process device, comprising an absorption tank (1), an ejector (2), a circulation pump (3), a negative pressure pipeline (4), a crane pipe negative pressure system (5) and a tank truck tank body (6), wherein the ejector (2) is installed on the top of the absorption tank (1), the liquid phase of the ejector (2) is connected to the outlet of the circulation pump (3), the inlet of the circulation pump (3) is connected to the bottom of the absorption tank (1), the negative pressure port of the ejector (2) is connected to the negative pressure pipeline (4), the crane pipe negative pressure system (5) is connected to the negative pressure pipeline (4), and the tank truck manhole (61) of the tank truck tank body (6) is connected to the crane pipe negative pressure system (5), characterized in that: It also includes a newly added negative pressure system (7), one end of which is connected to the tank body (6) of the tank truck, and the other end of which is connected to the negative pressure pipeline (4).

2. The liquid filling environmental protection process device according to claim 1, characterized in that: It also includes a quick-connect ball valve (8), and the top of the tank truck tank body (6) is provided with a quick-connect ball valve (8).

3. The liquid filling environmental protection process device according to claim 1, characterized in that: The crane pipe negative pressure system (5) comprises a connected crane pipe (51) and a negative pressure system (52), wherein the crane pipe (51) is connected to a tank truck manhole (61) of a tank truck body (6) via a cone at its lower portion.

4. The liquid filling environmental protection process device according to claim 1, characterized in that: The diameter of the tank truck manhole (61) is 250-300 mm.

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