A cleaning device suitable for a plasma bag cleaning machine

Abstract

The utility model discloses a kind of cleaning devices suitable for plasma bag cleaning machine, including multiple groups of relative arrangement in the upper, lower of plasma conveyor belt, spray component, spray component includes spray rod and nozzle, the spray rod is horizontally arranged along the width direction of plasma conveyor belt, multiple nozzles along the longitudinal distribution of spray rod are arranged on the spray rod, the injection direction of nozzle is arranged along the radial of spray rod and forms the included angle with the reference line perpendicular to the surface of plasma conveyor belt, the injection direction of adjacent nozzle is reversely arranged relative to reference line, the jet of nozzle injection is linear continuous flat shape along the axial direction of spray rod, the liquid inlet of spray rod is connected with cleaning medium supply system.The utility model can effectively clean plasma bag surface to remove pollutants, microorganism, disinfectant residue etc., and the cleaning effect is good.

Description

Technical Field

[0001] This utility model relates to the field of cleaning equipment technology, and specifically to a cleaning device suitable for plasma bag cleaning machines. Background Technology

[0002] Plasma, as a raw material for the production of blood products, requires strict storage and transportation. It is typically preserved by sealing plasma bags and freezing them to ensure its biological activity and safety. During production, plasma bags undergo pretreatment steps such as cleaning, disinfection, and bag breaking to effectively remove surface-adhered microorganisms, pyrogens, and other potential contaminants, preventing contamination and cross-contamination. Cleaning and disinfection of plasma bags is a critical step in the blood product manufacturing process, crucial for ensuring product quality and safety. Currently, although plasma bag cleaning and disinfection equipment is widely used in the industry, existing equipment suffers from technical deficiencies such as insufficient cleaning efficiency and incomplete residue removal due to limitations in nozzle structure design, layout rationality, and cleaning media selection. These limitations make it difficult to meet the high standards of cleanliness and microbiological control required for blood product production.

[0003] Plasma bag cleaning machines typically use purified water, water for injection, or 75% alcohol as cleaning media, employing soaking or rinsing methods to clean plasma bags. Soaking is insufficient to remove dirt adhering to the surface of plasma bags and also poses a risk of cross-contamination. In practical use, plasma bag cleaning machines using rinsing methods generally suffer from numerous cleaning dead zones and poor cleaning effectiveness. For example, there are cleaning dead zones on the side of the plasma bag furthest from the nozzle, and the water flow angle and force are inadequate; the cleaning medium jet is dispersed, the distance and angle between the nozzle and the plasma bag are improperly set, resulting in insufficient impact force; and the jet reaches the plasma bag as a discontinuous droplet flow, failing to ensure effective cleaning of all surfaces of the plasma bag. Utility Model Content

[0004] To address the shortcomings of the prior art, this invention provides a cleaning device suitable for plasma bag cleaning machines, which can effectively remove contaminants, microorganisms, disinfectant residues, etc. from the surface of plasma bags, achieving excellent cleaning results.

[0005] The technical solution adopted in this utility model is: A cleaning device suitable for a plasma bag washing machine includes multiple sets of spray assemblies arranged opposite each other above and below a plasma conveyor belt. Each spray assembly includes a spray rod and nozzles. The spray rod is horizontally arranged along the width direction of the plasma conveyor belt. Multiple nozzles are arranged on the spray rod along the longitudinal direction of the spray rod. The spray direction of the nozzles is arranged radially along the spray rod and forms an angle with a reference line perpendicular to the surface of the plasma conveyor belt. The spray directions of adjacent nozzles are opposite to the reference line. The jets sprayed by the nozzles are linear, continuous, and flat along the axis of the spray rod. The liquid inlet of the spray rod is connected to a cleaning medium supply system.

[0006] Furthermore, the nozzle is fan-shaped or slit-shaped.

[0007] Furthermore, the nozzles are evenly spaced along the longitudinal direction of the spray bar.

[0008] Furthermore, the angle between the spray direction of the nozzle and the baseline perpendicular to the surface of the plasma bag conveyor belt is 10° to 35°.

[0009] Furthermore, the nozzle has a straight-through flow channel.

[0010] Furthermore, the working pressure of the liquid inlet of the spray bar is greater than 0.2 MPa.

[0011] Furthermore, the spray coverage of two adjacent nozzles on the same side of the spray bar overlaps, and the spray coverage of the two nozzles furthest apart on the spray bar extends beyond both sides of the plasma conveyor belt.

[0012] Furthermore, the nozzle and the spray rod are fixedly connected by a threaded structure.

[0013] Furthermore, the water supplied by the cleaning medium supply system is purified water or water for injection.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model features a symmetrical arrangement of spray bars on the upper and lower surfaces of the plasma conveyor belt. The nozzles are arranged in a linear rinsing zone through equidistant cross-arrangement. Each spray bar emits a linear continuous water film jet, one of which moves in the opposite direction to the plasma conveyor belt, and the other moves in the same direction. Combined with the specific spray angle design of the nozzles, it can cover the entire width of the plasma conveyor belt, achieving 360° coverage rinsing of the entire surface of the plasma bag, effectively cleaning dead corners, and especially thoroughly cleaning complex areas such as wrinkles and labels.

[0015] 2. This utility model uses a fan-shaped or slit-shaped nozzle, which can form a flat and continuous water film jet, so that the jet energy is concentrated. With the appropriate working pressure, the jet impact force can be evenly distributed and the effective area can be expanded, effectively improving the efficiency of pollutant removal.

[0016] 3. This utility model, through reasonable nozzle angle design and top-to-bottom opposing spray layout, significantly shortens the overall length of the equipment while ensuring the cleaning coverage, improves space utilization, and has a simple structure that is easy to install and debug.

[0017] 4. The nozzle and spray bar of this utility model are fixedly connected by a threaded structure, which makes disassembly and assembly convenient and easy to clean and maintain; after installation and debugging, the usage status can be maintained in the same way as during verification, ensuring the stability and consistency of the cleaning effect. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of the top spray assembly of this utility model; Figure 2 This is a top view of the present invention; Figure 3 This is a left view of the present invention; In the diagram: 1-Spray bar, 2-Inlet, 3-Nozzle, 4-Linear rinsing zone, 5-Plasma bag, 6-Plasma conveyor belt, 7-Baseline. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0021] In the description of the embodiments of this application, it should be noted that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the product of this application is usually placed in when in use, or the orientation or positional relationship that is commonly understood by those skilled in the art. It is only for the convenience of describing this application and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this application.

[0022] In the description of the embodiments of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set," "install," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0023] like Figure 1-2 As shown, a cleaning device suitable for a plasma bag washing machine includes multiple sets of spray assemblies arranged opposite each other above and below a plasma conveyor belt 6. Each spray assembly includes a spray rod 1 and nozzles 3. The spray rod 1 is horizontally arranged along the width direction of the plasma conveyor belt 6. The direction of movement (length direction) of the plasma conveyor belt 6 is defined as the front-to-back direction, and the axial direction of the spray rod 1 is defined as the left-to-right direction. The figure only shows the spray assembly above the plasma conveyor belt 6 and provides a detailed description of the upper spray assembly; the lower spray assembly is symmetrically arranged, and the rest of the structure remains unchanged.

[0024] Multiple nozzles 3 are threadedly connected to the spray rod 1 and are evenly spaced along the longitudinal direction of the spray rod 1. In other embodiments, the spacing between the nozzles can be adjusted according to actual needs. The jet sprayed by the nozzles 3 is linear, continuous, and flat along the axis of the spray rod 1. In this embodiment, the nozzles 3 are preferably fan-shaped or slit-shaped, and their flow channels are designed to form a flat, continuous water film jet. This achieves concentrated energy distribution within a thin-film area, and its jet density is better than that of traditional circular nozzles, resulting in a higher impact energy density per unit area.

[0025] like Figure 3 As shown, the spray direction of nozzle 3 is radially arranged along spray bar 1 and forms an angle with the baseline 7 perpendicular to the surface of plasma conveyor belt 6. The spray directions of adjacent nozzles are opposite to the baseline 7, that is, one nozzle 3 sprays towards the front of plasma conveyor belt 6, and the other sprays towards the rear of plasma conveyor belt 6. Specifically, the angle α between the spray direction of nozzle 3 and the baseline perpendicular to the surface of plasma bag conveyor belt 6 is 10° to 35°. Plasma bag 5 is placed in the middle of plasma conveyor belt 6. When plasma bag 5 moves along plasma conveyor belt 6, the jet first washes plasma bag 5 in the forward direction. Then, after plasma bag 5 passes under nozzle 3 and continues to move, the jet washes plasma bag 5 in the reverse direction to avoid cleaning dead corners. This device is provided on both the upper and lower sides of plasma conveyor belt 6, which can form a spray pattern above or below plasma conveyor belt 6. Figure 1 , Figure 3The flattened linear rinsing zone 4 shown cleans both the top and bottom surfaces of the plasma bag. The spray coverage of two adjacent nozzles 3 on the same side of the spray bar 1 overlaps, and the spray coverage of the two nozzles 3 furthest apart on the spray bar 1 extends beyond both sides of the plasma conveyor belt to ensure that the cleaning medium fully covers the surface of the plasma bag 5 in 360°.

[0026] The impact force of the jet on the target surface depends on the jet shape distribution, jet angle, and nozzle distance. The jet generated when the cleaning medium is ejected from nozzle 3 is divided into an initial segment, a basic segment, and a dissipation segment. Only the basic segment is suitable for cleaning; the dissipation segment, with its atomized jet, is unsuitable for cleaning. The farther the jet is from nozzle 3, the smaller the impact force and the more dispersed the jet. Those skilled in the art can adjust these parameters according to actual conditions. Taking a vertical distance of 20cm between nozzle 3 and plasma conveyor belt 6 as an example, the angle α between the spray direction of nozzle 3 and baseline 7, the distance a between nozzle 3 and plasma bag 5, and the distance b between the two jets on plasma conveyor belt 6 are shown in Table 1. The actual effective distance L between nozzle 3 and the surface of plasma bag 5 is 20.15–21.40cm (corresponding to α = 10°–35°). This parameter combination ensures that the basic segment of the jet effectively acts on the surface of plasma bag 5. By controlling the angle α ≤ 15° (preferred range: 10°–15°), the effective range of the basic segment covers the surface of the plasma bag (11cm wide). Actual usage results show that a better cleaning effect can be obtained when the inlet pressure of the spray bar 1 at the inlet 2 is greater than 0.2 MPa.

[0027] Table 1 The inlet 2 of the spray bar 1 is connected to the cleaning medium supply system through an independent pipeline. The water supplied by the cleaning medium supply system is purified water or water for injection. The cleaning medium is discharged directly after each use to prevent cross-contamination.

[0028] Of course, there may be other embodiments of this utility model. Without departing from the spirit and essence of this utility model, those skilled in the art can make various corresponding changes and modifications based on this utility model, but these corresponding changes and modifications should all fall within the protection scope of the appended claims of this utility model.

Claims

1. A cleaning device suitable for a plasma bag washing machine, characterized in that: The system includes multiple sets of spray assemblies arranged opposite each other above and below the plasma conveyor belt (6). Each spray assembly includes a spray rod (1) and nozzles (3). The spray rod (1) is arranged horizontally along the width direction of the plasma conveyor belt. Multiple nozzles (3) are arranged on the spray rod (1) and distributed longitudinally along the spray rod (1). The spray direction of the nozzles (3) is arranged radially along the spray rod (1) and forms an angle with the reference line perpendicular to the surface of the plasma conveyor belt (6). The spray direction of adjacent nozzles (3) is opposite to that of the reference line. The jet sprayed by the nozzles (3) is linear, continuous and flat along the axis of the spray rod (1). The inlet (2) of the spray rod (1) is connected to the cleaning medium supply system.

2. The cleaning device for a plasma bag washing machine according to claim 1, characterized in that: The nozzle (3) is fan-shaped or slit-shaped.

3. The cleaning device for a plasma bag washing machine according to claim 1, characterized in that: The nozzles (3) are evenly distributed along the longitudinal direction of the spray bar (1).

4. The cleaning device for a plasma bag washing machine according to claim 1, characterized in that: The angle between the spray direction of the nozzle (3) and the baseline perpendicular to the surface of the plasma bag conveyor belt (5) is 10° to 35°.

5. The cleaning device for a plasma bag washing machine according to claim 1, characterized in that: The flow channel of the nozzle (3) is a straight-through type.

6. The cleaning device for a plasma bag washing machine according to claim 1, characterized in that: The working pressure of the liquid inlet (2) of the spray bar (1) is greater than 0.2 MPa.

7. The cleaning device for a plasma bag washing machine according to claim 1, characterized in that: The spray coverage of two adjacent nozzles (3) on the same side of the spray bar (1) overlaps, and the spray coverage of the two nozzles (3) that are furthest apart on the spray bar (1) extends beyond both sides of the plasma conveyor belt.

8. The cleaning device for a plasma bag washing machine according to claim 1, characterized in that: The nozzle (3) and the spray rod (1) are fixedly connected by a threaded structure.

9. The cleaning device for a plasma bag washing machine according to claim 1, characterized in that: The water supplied by the cleaning medium supply system is purified water or water for injection.

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