EP1950376A2 - Three-chamber pipe feeder - Google Patents

Abstract

The feeder (1) has a rectangular or box-shaped transition block (21) with a through-hole (26) and a branching cross-hole (27), and arranged on ends of a pipe chamber (2) for distribution of water to a high pressure line or a low pressure line. The transition block is provided with a vent hole to the pipe chamber, and comprises a connection to a pressure balancing slide and a hydraulic cylinder connection for actuation of a locking unit i.e. valve (32).

Description

The invention relates to a tube supplier, in particular three-chamber Rohraufgeber for the exchange of mine or hot water and fresh or cold water and / or quasi-continuous, hydraulic promotion of solids in underground mining, with a constant filling and emptying direction of his chamber at the tubular chamber has at its one end a cold water valve battery and at the other end a hot water valve battery comprising on the one hand filling and on the other hand for discharging each a high pressure and a low pressure line and provided for pressure build-up or pressure reduction, can be brought into a closed or open position blocking elements ,

By the DE 39 26 464 C2 or DE 43 11 277 C2 Such Rohraufgeber or three-chamber Rohraufgeber have become known. The continuous, hydraulic promotion over high altitudes to exchange the required in underground mining cold water with the costs incurred in underground hot water and also to promote turbid and solids containing liquids without difficulty, is achieved by the arranged at the ends of the chambers blocking elements by a corresponding circuit allow a continuous filling and promotion. Apart from the use in mining such Rohraufgeber come in conjunction with a device for water treatment, especially for seawater desalination, according to the principle of reverse osmosis. In this case, a high-pressure water stream is fed to an osmosis system and separated into pressureless pure water and in relation to the inlet pressure still under high pressure concentrate, the concentrate of energy recovery can serve.

Both at the valve manifolds of the cold water side and the hot water side are at the transition from a large diameter owning high-pressure tube chambers, also called exchange chambers, to the small size of the high pressure / low pressure hot water battery or high pressure / low pressure cold water battery to distribute the water used on the low pressure or high pressure line tees. These are screwed with large flanges to corresponding end flanges of the tube chamber. This Flanschverschraubung requires due to the design-related design of the conventional three-chamber Rohraufgeber very long screws, which are also only difficult to install due to space. Furthermore, the high-pressure and low-pressure lines are bolted via flange with the T-piece, which in turn also very long screws are needed. Apart from the fact that such a tee is very großbauend and very expensive to manufacture, it is based with its flange on DIN components, which must be complied with in the distribution of water compelling dependencies.

The invention is therefore an object of the invention to provide a generic pipe feeder, especially three-chamber pipe feeder, without the disadvantages mentioned, in particular to make the distribution of water at the ends of the tube chamber with less effort and variable.

This object is achieved in that at the ends of the tube chamber or chambers for distributing the water to the high pressure line or the low pressure line, a transition block is formed therein formed through hole and branching off this transverse bore. Thus, by deviating from the decades of practice of tees and forming the distribution wells directly in a self-contained block, several advantages can be achieved simultaneously. The rectangular or cuboid transition block can be produced very easily, without screwing mount, namely fasten according to a preferred embodiment of the invention by a welded connection to the tube chamber end. The transition block itself requires no more flanges and also allows easy mounting of the high-pressure and low-pressure line, which can be easily installed with directly ending in the transition block, also much shorter than conventional screws. Through the use of the transition block according to the invention, the material and production costs compared to the previous T-pieces can be almost halved.

Since the transition block according to the invention does not require DIN parts, there is a particular advantage that there are no restrictions or constrictions in the hub of the distribution holes due to the no longer required flanges and thus in particular significantly larger (up to 30%) bore diameter are possible. This makes it possible to achieve a flow velocity which is significantly reduced in this area, which correspondingly improves the overall flow efficiency of the three-chamber tube feeder. This is then noticeable in the more favorable energy consumption of the primary and secondary circulation pumps.

The transition block according to the invention can be further developed into a multi-functional component, because it can be provided according to advantageous embodiments of the invention readily with a vent hole for the tube chamber and a connection for a pressure compensating cylinder and a hydraulic cylinder connection for actuating the locking member.

Fig. 1

eine schematische Darstellung eines Dreikammer-Rohraufgebers mit den in Verbindung stehenden Hochdruck- und Niederdruck-Flüssigkeitskreisläufen;

Fig. 2

als Einzelheit eine Vorderansicht eines Dreikammer-Rohraufgebers mit an den Rohrkammerenden angeschweißten Übergangsblöcken zur Wasserverteilung;

Fig. 3

den Gegenstand der Fig. 2 in der Draufsicht;

Fig. 4

als Einzelheit einen Übergangsblock, in einer Vorderansicht; und

Fig. 5

ein Wasserverteilungs-T-Stück nach dem Stand der Technik.

Further features and details of the invention will become apparent from the claims and the following description of an embodiment of the invention illustrated in the drawings with reference to a three-chamber Rohraufgeber arranged in the underground area. Show it:

Fig. 1

a schematic representation of a three-chamber Rohraufgebers with the associated high-pressure and low-pressure fluid circuits;

Fig. 2

in detail, a front view of a three-chamber Rohraufgebers with welded at the tube chamber ends transition blocks for water distribution;

Fig. 3

the object of Fig. 2 in the plan view;

Fig. 4

as a detail a transitional block, in a front view; and

Fig. 5

a water distribution tee according to the prior art.

One in the embodiment according to Fig. 1 shown three-chamber Rohraufgeber 1 with its chambers 2, 3 and 4 is arranged and designed so that it can connect a high-pressure circuit HD and a low-pressure circuit ND in a direct and continuous exchange, on the one hand fresh water or cold water from the surface area in to promote the underground area and on the other hand mine water or hot water from the underground area in the surface area.

Fresh water or cold water is fed from the surface area 5 through the high-pressure line into the underground area 7 and fed to the chambers 2, 3, 4 of the three-chamber feed tube 1. The pressure build-up and also the pressure reduction in the chambers 2, 3, 4 of the three-chamber Rohraufgebers 1 is made by blocking members 8 to 11, which are associated with each chamber and work in part with serving for their control switches (not shown) and devices ,

The mine or hot water is fed via the low-pressure pit water line 14 to the chambers 2, 3, 4 of the three-chamber feed tube 1 in countercurrent to the fresh or cold water. Since there is a continuous filling of the chambers 2 to 4 or a continuous promotion by the three-chamber tube feeder 1, a central control system is provided in which the signals from timers and / or integrators by contact pressure gauge and by limit switches of the locking members 8 and 11 with a Sequential control are triggered.

While the chamber 2 promotes the pit or hot water via a high-pressure pit water pipe 16 in the surface area, the chamber 3 is filled with mine or hot water. The chamber 4, however, is filled with fresh or cold water and is in readiness for filling with mine or hot water.

The fed from the chambers 2, 3 and 4 of the three-chamber Rohraufgebers 1 in the low pressure area ND fresh or cold water passes through the low-pressure fresh water line 17 to the consumer. The promotion of the water is done via connected to the lines, not shown pumps.

How closer the Fig. 2 can be seen, the two throughput increase in series juxtaposed three-chamber tube feeders 1 a, 1 b (see. Fig. 3 ), at the ends of the tube chambers 2, 3, 4 of both the cold water side K and the hot water side W a cold water valve battery 18 and a hot water valve battery 19 is formed. About this are the tube chambers 2, 3, 4 for filling and emptying and pressure build-up and pressure reduction on the one hand the Hochdruckkaltwasserleitung HD-KW and the low-pressure cold water line ND-KW and the high pressure hot water line HD-WW and the low pressure hot water line ND-WW connected. To distribute the water, each outer end of the tube chambers 2, 3, 4 with a through a Weld 20 provided attached transition block 21. The lines HD-KW and ND-KW or HD-WW and ND-WW communicating with one another and with the tube chambers 2, 3, 4 are fastened by screwing directly into the respective transition block 21. The massive, rectangular or cuboid transition block 21 has the required screw-in bores 22 on the corresponding block sides (cf. Fig. 4 ).

The construction of the solid, compact transition block 21 as a multi-functional component is in Fig. 4 while, on the other hand, the Fig. 5 a previously common T-distribution piece 23 of the prior art reproduces. This is not only very large building and consuming to assemble, but is subject by particular a flange 24 for attachment to the tube chambers 2, 3 and 4 of an indispensable structural and functional condition with respect to the flow conditions. It can be seen in Fig. 5 Furthermore, that the connection of the T-manifold 23 to the high pressure or low pressure line requires further connections via flanges 25.

In contrast to this T-distribution piece 23, the in Fig. 4 illustrated, compact transition block 21 integrates a in the flow direction of the tube chambers 2, 3, 4 flowing through water extending through hole 26 to which either the line ND-KW (on the cold water side K) or the line HD-WW (on the hot water side W) , and a branched off from the through hole 26 transverse bore 27 for distributing the water on either the line HD-KW or ND-WW. For venting the tube chamber 2, 3, 4, the transition block 21 is also immediately provided with a vent hole 28 and further has a connection 29 for a pressure compensation slide and also a hydraulic cylinder port 30, the hydraulic cylinder 31 is in Fig. 3 to detect, for actuating a blocking member or valve 32. Depending on whether the valve 32 is open or closed, the water flows over the through hole 26 or the transverse bore 27 in the respective water cycle.

Claims (5)

Pipe loader, in particular three-chamber pipe feeders (1) for exchanging mine or hot water and fresh or cold water and / or for quasi-continuous, hydraulic conveying of solids in underground mining, with constant filling and emptying direction of its chamber, in which the tube chamber (2, 3, 4) has at its one end a cold water valve battery (18) and at the other end a hot water valve battery (19) comprising on the one hand filling and on the other hand for discharging each a high pressure and a low pressure line (HD, ND) and provided for pressure build-up or pressure reduction, can be brought into a closed or open position blocking elements (32),
characterized,
in that at the ends of the tube chamber or chambers (2, 3, 4) for distributing the water to the high-pressure line (HD) or the low-pressure line (ND) there is a transition block (21) with a through-hole (26) formed therein and a transverse bore branching off from it (27) is arranged. A tube applicator according to claim 1,
characterized,
in that the transition block (21) is provided with a ventilation bore (28) for the tube chamber (2, 3, 4). A tube applicator according to claim 1 or 2,
characterized,
that the transition block (21) has a connection (29) for a pressure compensation slide has. A tube applicator according to any one of claims 1 to 3,
characterized,
that the transition block (21) for actuating the blocking member (32) has a hydraulic cylinder connection (30). A tube feeder according to any one of claims 1 to 4,
characterized,
that the transition block (21) is welded to the tube chamber end.

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