CN205064976U - Valve component - Google Patents

Abstract

The utility model relates to a valve assembly, in particular to a valve assembly for a tissue dehydrator, comprising a valve, a base, a heater, a joint and a flow channel, and the base is provided with multiple liquid inlets and a single liquid outlet The number of liquid inlets corresponds to the number of valves. One port of the valve is installed on the liquid inlet of the base and communicates with the flow channel. The other port of the valve is connected with a joint, and the liquid outlet is set at the bottom of the base. At the end of the base, there are interconnected flow channels inside the base. The flow channels are connected with the liquid inlet and outlet on the base to form a channel for liquid flow. The heater is installed on the outer wall of the bottom of the base or the base internal. The utility model has a simple structure and takes up little space. The design of the flow channel inside the base can effectively reduce the volume of the dead space, so that the reagent residual liquid in the flow channel during each suction and discharge process is less, and can pass through the valve at the tail. As a cleaning channel, the entire liquid channel is effectively cleaned to reduce cross-contamination between reagents.

Description

a valve assembly

【Technical field】

The utility model relates to a valve assembly, in particular to a valve assembly used in a tissue dehydrator.

【Background technique】

In a fully enclosed tissue dehydrator, the dehydration reagent needs to be delivered from different dehydration reagent bottles to the tissue processing tank. The traditional method is to use multiple independent valves and pipeline systems, and each dehydration reagent bottle passes through a separate pipeline. The valve is connected with the tissue processing cylinder to control the opening and closing of each reagent channel. The disadvantages of this method are: many fluid channels, messy structure, large space occupation, large dead space volume, large public channel volume, inconvenient cleaning, difficult assembly, unheatable liquid in the flow channel, and heavy operation and maintenance workload.

【Content of invention】

The purpose of the invention of the utility model is to integrate a plurality of individual fluid channels into a compact valve assembly, realize channel selection, simplify the structure of the flow channel and increase the maintainability of the assembly.

The technical problem of the utility model is solved by the following technical solutions:

A valve assembly, comprising a base, a flow channel and a plurality of valves, the base is provided with a plurality of liquid inlets and liquid outlets, the base is provided with the flow channel, and the flow channel is connected to the The liquid outlet is connected, the valve is connected to the liquid inlet, one port of the valve is connected to the corresponding liquid inlet, and the other port of the valve is connected to the flow channel.

Preferably, the valve assembly further includes a heater, the heater is installed on the outer wall of the bottom of the base or inside the base, and the heater is a heating sheet or a heating rod.

Preferably, the valve assembly further includes a joint, the joint is connected to the liquid inlet, and the joint is a buckle joint or a barb joint or a push-in joint.

Further, the valve assembly further includes a temperature sensor, and the temperature sensor is installed on the outer wall of the base or inside the base.

Preferably, the liquid outlet is arranged at the bottom of the base.

Preferably, the valve assembly further includes a temperature sensor, and the temperature sensor is installed on the outer wall of the base or embedded inside the base.

Preferably, the base is in an inverted V shape.

Preferably, the valve is a solenoid valve or a pneumatic valve.

Preferably, the material of the base is brass, bronze, steel, stainless steel, cast iron, organic glass, aluminum, aluminum alloy, engineering plastic or ethylene propylene rubber.

In order to reduce the clogging of flow channels and valves by impurities in the reagent, the valve assembly also includes a filter, which is installed at the liquid inlet and/or liquid outlet of the base, and the filter pore size of the filter can be determined according to Use demand to adjust.

The beneficial effect of the utility model compared with the prior art is:

The utility model has a simple structure and takes up little space. The design of the flow channel inside the base can effectively reduce the volume of the dead space, so that the reagent residual liquid in the flow channel during each suction and discharge process is less, and can pass through the valve at the tail. As a cleaning channel, the entire liquid channel is effectively cleaned to reduce cross-contamination between reagents, and the filter at the liquid outlet or/and the liquid outlet can effectively reduce the blockage of impurities on the flow channel and valve.

【Description of drawings】

Fig. 1 is a structural block diagram of a valve assembly of an embodiment of the present invention.

Fig. 2 is a schematic structural view of a specific embodiment of the present invention.

FIG. 3 is a schematic cross-sectional view of the valve assembly of FIG. 2 .

Fig. 4 is a structural schematic diagram of another form in the specific embodiment of the present invention.

FIG. 5 is a structural schematic diagram of the valve assembly of FIG. 4 .

FIG. 6 is a schematic cross-sectional view of the valve assembly of FIG. 4 .

【detailed description】

The utility model will be described in further detail below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be emphasized that the following description is only exemplary and not intended to limit the scope of the invention and its application.

As shown in Figures 1 to 6, in one embodiment, the utility model provides a valve assembly, including a valve 1, a base 2, a heater 3, a joint 8 and a flow channel 4, and the base 2 is provided with A plurality of liquid inlets 5 and a single liquid outlet 6, the liquid outlet 6 is arranged at the bottom of the base 2, the inside of the base 2 is provided with a flow channel 4, the flow channel 4 is connected with the liquid inlet 5 and the outlet on the base 2 The liquid ports 6 are connected, and the diameters of the flow channels 4 are the same to ensure that the flow of the liquid in each flow channel 4 is consistent with the size of the liquid resistance. The diameter of the flow channels 4 can be determined according to the design requirements of the flow rate. Valve 1 Corresponding to the number of connectors 8, one port of the valve 1 is connected to the liquid inlet 5 of the base 2, the other port of the valve 1 is connected to the flow channel 4 of the base 2, and one end of the connector 8 is connected to the liquid inlet 5. The other end is used to connect to an external liquid pipeline, and the joint 8 can be a buckle joint, a barb joint or a push-in joint. The filter 9 is installed at the liquid inlet 5 and/or the liquid outlet 6, and is used to filter the liquid flowing into or out of the valve assembly, and can filter the impurities in the liquid flowing through the base 2 to avoid internal Runner 4 is clogged.

The utility model installs the heater 3 on the outer side wall of the bottom of the base 2 or is embedded in the base 2 by pasting or embedding. The valve 1 etc. are heated, the heater 3 can be a heating sheet, which can be directly pasted on the outer surface of the bottom of the base 2 for heating, and the heater 3 can also be a heating rod, which can be inserted into the inside of the base 2 for heating. Install.

In the utility model, the temperature sensor 7 is installed close to the outer wall of the base 2 or embedded inside the base 2 by pasting or embedding, and the heater 3 is heated and the temperature sensor 7 monitors and feeds back the temperature, so that the temperature of the valve assembly is kept constant. .

As shown in Figure 5, in another embodiment of the present utility model, the base 2 is in an inverted V shape, the two side walls of the base 2 are inclined surfaces, and the valve 1 and the valve 11 installed on the base 2 are V-shaped. Arranged in a font, the valve 1 and valve 11 on the inclined plane form an oblique angle with the horizontal plane. Due to the effect of gravity, the liquid in the valve 1 and valve 11 flows into the flow channel 4 completely. This structure can effectively solve the problem of liquid in the valve. remaining problems.

The material of the base 2 is brass, bronze, steel, stainless steel, cast iron, plexiglass, special engineering plastics, aluminum, aluminum alloy, engineering plastics or ethylene propylene rubber, to meet the different reagents flowing through the base, and to select base material.

In another embodiment of the present utility model, the valve 1 is an electromagnetic valve or a pneumatic valve.

The working process of the utility model valve assembly is described in detail below in conjunction with accompanying drawings 1-6 of the description:

The pumping process is as follows:

Open any valve 1, and establish a negative pressure at the liquid outlet 6 of the valve assembly through the vacuum pump. Under the action of negative pressure, the liquid enters the flow channel 4 inside the base 2 from the joint 8, the liquid inlet 5, and the valve 1 in sequence. Then flow out through the liquid outlet 6 of the base 2 to realize the process of pumping liquid.

The drainage process is as follows:

Open any valve 1 and establish a positive pressure at the liquid outlet 6 of the valve assembly through the air pump. Under the action of positive pressure, the liquid in the valve assembly enters the inner flow channel 4 of the base 2 through the liquid outlet 6 of the base 2 , and then discharged through the external joint 8 of valve 1 to realize the liquid discharge process.

The procedure for cleaning the valve assembly is as follows:

Open a valve 11 farthest from the liquid outlet 6, and establish a negative pressure at the valve assembly liquid outlet 6, under the action of negative pressure, the liquid in the valve assembly enters the interior of the base 2 through the valve 12 and continues to flow flushing flow 4 for a period of time, then close the valve 12, after the positive pressure is established at the liquid inlet 5 of the valve assembly, and then open the valve 12, the liquid enters the interior of the base from the liquid outlet 6 of the base 2 under the action of the positive pressure, Discharge from the external joint 8 of the valve 12 again, so the reciprocating operation is until the cleaning is completed.

Those skilled in the art will recognize that many variations on the above description are possible, so the examples and figures are merely illustrative of one or more particular implementations.

Although what are considered to be exemplary embodiments of the present invention have been described and described, it will be apparent to those skilled in the art that various changes and substitutions may be made therein without departing from the spirit of the present invention. In addition, many modifications may be made to adapt a particular situation to the teachings of the invention without departing from the invention's central concept described herein. Therefore, the utility model is not limited to the specific embodiment disclosed here, but the utility model may also include all the embodiments and their equivalents belonging to the scope of the utility model.

Claims (10)

1. a valve assembly, it is characterized in that: comprise pedestal, runner and multiple valve, described pedestal is provided with multiple liquid entering hole and liquid outlet, described base interior arranges described runner, described runner is connected with described liquid outlet, described valve is connected to liquid entering hole, and the Single port of described valve is connected to corresponding liquid entering hole, the another port of described valve and described flow passage.

2. valve assembly as claimed in claim 1, it is characterized in that described valve assembly also comprises heater, described heater is installed on base bottom outer side wall or base interior, and described heater is heater band or heating stick.

3. valve assembly as claimed in claim 1, it is characterized in that: described valve assembly also comprises joint, described joint is connected to liquid entering hole, and described joint is communicated with the Single port of described valve, and described joint is Snap-in joint or fluking type joint or fast insertion type joint.

4. valve assembly as claimed in claim 1, is characterized in that: described liquid outlet is arranged on base bottom.

5. valve assembly as claimed in claim 1, it is characterized in that: described valve assembly also comprises temperature transducer, described temperature transducer is installed on pedestal outer side wall or is embedded in base interior.

6. valve assembly as claimed in claim 1, it is characterized in that: described valve assembly also comprises filter, described filter is arranged on liquid entering hole and/or the liquid outlet place of pedestal.

7. the valve assembly as described in any one of claim 1 to 6, is characterized in that: described pedestal is inverted V-shape.

8. valve assembly as claimed in claim 1, is characterized in that: described valve is solenoid valve or pneumatic valve.

9. valve assembly as claimed in claim 1, is characterized in that: the material of described pedestal is brass, bronze, steel, stainless steel, cast iron, plexiglass, aluminium, aluminum alloy, engineering plastics or ethylene propylene rubber.

10. valve assembly as claimed in claim 6, is characterized in that: the pore size filter size of described filter is adjustable.